EP0111898B1 - Bed bottom with cross beams and resilient connecting pieces - Google Patents

Bed bottom with cross beams and resilient connecting pieces Download PDF

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Publication number
EP0111898B1
EP0111898B1 EP83112615A EP83112615A EP0111898B1 EP 0111898 B1 EP0111898 B1 EP 0111898B1 EP 83112615 A EP83112615 A EP 83112615A EP 83112615 A EP83112615 A EP 83112615A EP 0111898 B1 EP0111898 B1 EP 0111898B1
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EP
European Patent Office
Prior art keywords
support frame
spring
lower mattress
beams
lengthwise
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP83112615A
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German (de)
French (fr)
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EP0111898A1 (en
Inventor
Arthur Lieberknecht
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Individual
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Individual
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Filing date
Publication date
Priority claimed from DE19823246983 external-priority patent/DE3246983A1/en
Priority claimed from DE19833329953 external-priority patent/DE3329953A1/en
Priority claimed from DE19833339763 external-priority patent/DE3339763A1/en
Application filed by Individual filed Critical Individual
Priority to AT83112615T priority Critical patent/ATE23665T1/en
Publication of EP0111898A1 publication Critical patent/EP0111898A1/en
Application granted granted Critical
Publication of EP0111898B1 publication Critical patent/EP0111898B1/en
Expired legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C31/00Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
    • A47C31/12Means, e.g. measuring means for adapting chairs, beds or mattresses to the shape or weight of persons
    • A47C31/123Means, e.g. measuring means for adapting chairs, beds or mattresses to the shape or weight of persons for beds or mattresses
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C23/00Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases
    • A47C23/06Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using wooden springs, e.g. of slat type ; Slatted bed bases
    • A47C23/062Slat supports
    • A47C23/063Slat supports by elastic means, e.g. coil springs
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C23/00Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases
    • A47C23/06Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using wooden springs, e.g. of slat type ; Slatted bed bases
    • A47C23/062Slat supports
    • A47C23/067Slat supports adjustable, e.g. in height or elasticity

Definitions

  • the invention relates to a bottom mattress with cross members as a support for a top mattress, in which each cross member is fastened to the support frame of the bottom mattress by means of an elastic connecting piece which can be changed in spring strength, each connecting piece having a prestressable compression spring.
  • Such a bottom mattress is known from DE-B-2532583.
  • the suspension made of rubber washers or coil springs can be pre-tensioned by a maximum of 1 cm, while the spring travel is a maximum of 2 cm. This type of preload means that different body weights cannot be sufficiently taken into account in the spring hardness.
  • each connecting piece consists of a lower telescopic sleeve arranged in a receiving bore of the support frame and fixedly connected to this for setting an adjusting nut and the lower part of the compression spring, and an upper telescopic sleeve connected to the lower one .
  • a disadvantage of this design is that the spring preload values required for the individual body weights cannot be set directly, and the setting process is therefore time-consuming.
  • the object of the invention is to avoid this disadvantage.
  • each connecting piece consists of a spring plate arranged in a receiving bore in the support frame and resting on the cross member
  • the receiving bore extends over part of the thickness of the support frame
  • an inner threaded sleeve is arranged in a bore in the central axis and above the spring plate arranged in the support frame, in which the adjusting screw for adjusting the pretension the compression springs are guided, and that the longitudinal frames of the support frame are reinforced on their underside by a further frame on which a measuring scale for setting the preload values of the compression spring is arranged
  • the compression spring is arranged at one end in a receiving bore of a longitudinal frame of the support frame and is held at the other end on the cross member that laterally on the longitudinal frames
  • a girder with a measuring scale is arranged on each crossbeam, on which a caliper can be moved and fastened, that the plates have a recess in which a measuring stick attached to the crossbeam can be moved, that below the crossbeams are spaced lower crossbeams and that between the A compressed air hose for adjusting the spring preload values is arranged in the upper and lower crossbeams, which are comprised of brackets for fixing the compression springs.
  • a third way to solve the problem with a sub-mattress of the type mentioned is that the compression spring is arranged with one end in a receiving bore of a longitudinal frame of the support frame and with the other end is held on the cross member that the side of the longitudinal frame of the cross member a plate with a measuring scale is arranged, on which a caliper can be moved and fastened, that the plates have a recess in which a measuring stick slides against a pressure element and, in the loaded measuring position, is guided up to the stop against the underside of the crossmember by means of an angle attachment is and that below the cross member between the longitudinal frames of the support frame transverse straps are arranged, which are encompassed by brackets for fixing the compression springs.
  • receiving holes 11 are made in the support frame 1, which comprise approximately% of the frame thickness.
  • a central bore 13 for an internally threaded sleeve 14 is made in the bore bottom 12 that has remained.
  • the longitudinal frames 2 of the support frame are reinforced on their underside by a further frame 6, which secures the support frame against bending downwards, while the same function is performed by vertical frames 4 on the head and foot sides.
  • an adjusting screw 22 is guided, which has a spring plate 23 with an outer-walled bend 24, within which a compression spring 21 is seated.
  • the adjusting screw 22 has either a knurled nut or a semicircular screw head 25 with a recess for adjusting the pretension.
  • a spring plate 17 or a small round cutout is also arranged on crossbeams 16 on their underside above the imaginary central axis of the spring plate 23 in order to hold the prestressed compression spring.
  • measuring scales 8 are attached opposite the adjusting screw 22, on which the desired spring preload values can be set.
  • the upper edge 26 of the screw head 25 is used for this purpose.
  • Longitudinal belts 29 are also simultaneously fastened between the thrust washer and retaining screws and are locked to the frame 1 on the head frame and foot side via belt slots 5 on transverse frames 3, which prevents longitudinal displacement of the cross members 16 and saves material compared to a double holding belt and increases the flexibility of the cross members about their longitudinal axis.
  • the offset 24 of the spring plate 23 allows the pretension to be increased beyond the upper horizontal plane of the support frame, so that overall the frame thickness 7 is reduced by the same value as the height 27 of the offset and material can thus be saved.
  • a metal profile frame 30 with welded screw thread 31 can also be used, as a result of which the frame weight is reduced.
  • the longitudinal frame 2 of the support frame 1 is arranged on the outer vertical surfaces in front of each pressure spring pressure value measuring scale 9.
  • a pressure indicator 32 is detachably attached to the narrow outer edge of the cross member 16. When pressure is applied, this indicator slides along the scale 9 and, with its lower horizontal end edge, shows the respective pressure value, which can be fixed on the scale 9 with a caliper or pointer 33.
  • the desired counter pressure is set directly by actuating the screw head 25 of the adjusting screw 22. In this way, the contact pressure values of the body in the individual pressure zones can be determined directly for each user in a specific lying position without further calculation, in order to be able to set the desired back pressure just as quickly on the basis of these measured values.
  • FIG. 7 generally shows the arrangement of an electronic pressure measurement, in which a measuring sensor 34 is connected to each cross member 16 and actuates an actuator 37 via a control arrangement 36 for setting the counterpressure on the spring plate 23 of the compression spring 21.
  • the pressure values 35 are measured electronically with the sensor.
  • Fig. 8 shows a variant of the system of Fig. 7 for an electro-mechanical design of the actuator.
  • an adjusting screw 42 is guided, to which the spring plate 23 provided with the offset 24 is fastened, on which the compression spring 21 rests and is held by the spring plate 17, which is fastened to the cross member 16.
  • the pressure values 35 are measured electronically and the measured value impulses are passed on to the control arrangement 36, which transmits the desired back pressure by an impulse to an electric servomotor 38, which has a shaft 39, on which there is a screw 40, which is connected to a worm wheel 41 is connected to an internal thread, the adjusting screw 42 being moved.
  • a measuring plate 43 is located on the threaded rod, the upper edge 26 of which shows the measured values on the measuring scale 8.
  • FIG. 9 shows an electro-pneumatic or electro-hydraulic embodiment of the actuator according to FIG. 7, the actuator 38 driving a pump 44 which pneumatically or hydraulically fills a cylinder 45 and lifts a piston 46.
  • a pump 44 pneumatically or hydraulically fills a cylinder 45 and lifts a piston 46.
  • the pressure values occurring in the different sleeping positions are automatically recorded and the desired back pressure values are set immediately.
  • full pressure compensation between the contact pressure of the body and counter pressure the feeling of a floating state is achieved in the lying position.
  • the invention is applicable to all persons who require an optimal lying quality through exact contact pressure compensation.
  • the receiving bores 11 are on the support frame 1 on the longitudinal frame 2 on the upper side thereof and a plate 49, the measuring scale 8, a caliper 10 and a recess 50 on the outside of the longitudinal frame intended.
  • the compression spring 21 rests in the receiving bore 11 and is held at the top by the spring plate 17 which is fastened to the cross member 11.
  • Lower cross members 51 are detachably connected to the longitudinal frame 2 at a distance from the upper cross members 16 by screws 52 or the like.
  • the prestressed compression spring 21 is fixed by a holder 53.
  • An air hose bracket 54 is attached to the lower cross members 51.
  • a compressed air hose 55 with a valve 56 rests in it and is surrounded by a hose jacket 57.
  • the upper cross members 16 cover the hose jacket and are secured in their longitudinal direction against displacement by a tether 58.
  • the tether is releasably attached to the cross frame 3 of the support frame 1 by means of a bracket.
  • the contact pressure values are advantageously determined on the body lying on its side, taking into account the freedom of movement on the head and foot sides in normal sleeping habits.
  • a measuring stick 60 fastened to the cross member 16 by means of a holder 59 can be displaced in the recess 50.
  • the respective indentation values determined on this measuring staff are, as can be seen from FIG. 13, recorded on the slide 10.
  • the pressure value is then set by means of a pressure pump via the valve 56 on the compressed air hose 55.
  • FIG. 14 A second example of the embodiment of the second invention is shown in section in FIG. 14 and in perspective in FIG. 15.
  • An air cell cushion 61 with valves 62 is located on the lower cross members of the support frame, the individual cells 63 of which are connected to one another via webs 64 and buffer cells 65.
  • the upper crossbeams 16 rest on the air cell cushion, which, as in the first embodiment, fix the compression spring 21 in the spring plate 17 and the receiving bore 11 by means of the holder 53 with pretensioning pressure.
  • the base mattress can be released from the support frame 1 with the lower cross members 51 on the screws 52. After the pressure cells have been emptied, they can be rolled up and transported easily. Due to this measure, the base mattress is very tight, e.g. in mobile homes or caravans and tents, particularly suitable to be placed directly on the floor if the previously set measurement pressure values have been set.
  • the measured values are determined in the manner described and, according to FIG. 16, via bellows 66, which are made of a correspondingly strong plastic material, e.g. B. Teflon or rubber, can be set in pressure via a valve 67.
  • bellows have the advantage that they cannot bulge sideways under pressure due to the solid material and therefore flexibly adapt to body pressure downwards and sideways.
  • the bellows rest with their valve insert 68 in a bore 69 of the longitudinal frame 2, while they are fastened at the top to the upper cross members 16 by a holder 70.
  • the upper crossmember is secured against longitudinal displacement by the longitudinal tether 58 and against transverse displacement by a transverse tether 71.
  • the pressure values 35 are measured electronically with a measuring sensor 34 and the measured value pulses are passed on to the control arrangement 36 in order to control the contact pressure.
  • This controls the electric motor 38, which drives the pneumatic or hydraulic pressure medium via a check valve 72 into the bellows 66 by means of the pump 44. If the pressure in the bellows is to be reduced, the measured value pulses from the sensor 34 cause the outlet valve 73 to open via the electronic control.
  • a pressure storage vessel 74 as shown in FIG. 18, can also be used.
  • the pressure increase is caused by opening the valve 75, the pressure drop by opening the outlet valve 73.
  • a piston arrangement is not necessary.
  • FIG. 19 shows schematically how the support frame according to FIG. 12 can be folded over a hinge 76 for travel purposes.
  • a corresponding possibility also exists for the embodiment variant according to FIG. 16.
  • a threaded bushing 77 is inserted into the receiving bore 11 of the longitudinal frames 2 of the support frame 1, in which a spring plate 78 with an external thread and a cone 79 for fixing the compression spring 21 are arranged.
  • the compression spring which rests on the spring plate, has the same properties as in the previous variants.
  • the spring plate has a hexagon socket 80 at the bottom.
  • the hexagon socket is over a Bore 81 in the longitudinal frame 2 is accessible with the aid of an adjusting key 82, which has a measuring scale 83 and a hexagon pin 84 and a grip wheel 85.
  • the other features, such as measuring devices and longitudinal belts with cross belts, are identical in construction to the previous embodiments.
  • the latter embodiment has the advantage that the adjustment key that can be used on all compression springs is only required once for the respective fixing of the measured pressure value zones.
  • 21 and 24 show a fifth embodiment of the second invention.
  • a threaded bolt 86 is fastened in the bores 11 and 81 by means of a drive-in nut 87 and by means of a punch 88 without twisting.
  • a spring plate 89 with an internal thread 90 slides in the threaded bolt.
  • the spring plate has teeth 91 on the outside. Its lower end level 92 is also the spring plate measuring level.
  • the receiving bore 11 has a recess 93 on the outside.
  • the toothing 91 of the spring plate 89 is connected to the toothing 94 of a drive pin 95 which has an upper slot 96 and rests in a guide bore 98 by means of a guide pin 97.
  • the pressure setting of the compression spring 21 can be carried out.
  • the pressure zone measurement can be held on an opposing measuring scale 100 with the plate 49 and the caliper 10 and the measuring stick 60. This pressure value is brought to cover by means of the lower spring plate measuring plane 25, so that the set pressure values are visible at all times.
  • rotation of the compression spring by a rotatable holding plate 101 is avoided.
  • this embodiment variant significantly simplifies handling in that the setting can be carried out directly from above without having to lift the support frame.
  • a receiving bore 11 with a central bore 13 is arranged in the support frame 1 in the longitudinal frame 2, in which a holding bushing 102 is embedded.
  • a threaded bolt 104 which has an internal hexagon 105 or optionally a screw slot 106, rests on the bottom 103 of the holding bush, movable about its vertical axis.
  • a spring plate 107 slides with its thread 108 in the threaded bolt 104.
  • a fastening hole 109 is made in the spring plate, in which the angled spring. End 110 of the compression spring 21 engages.
  • the compression spring 21 is locked on the upper cross member 16 by a holding plate 111, which has a round recess 112 in the middle and a holding hole 113 into which the end of the spring bend 114 of the compression spring 21 engages.
  • the upper holding plate 111 is fixed by a guide holder 115 which is embedded in a bore 116 in the upper cross member 16.
  • a cross belt loop 118 of the cross belts 1.19 is attached to an upper spring ring 117 of the compression spring 21.
  • the transverse straps 119 are crossed with the counter straps up to the inner upper edge 120 of the longitudinal frame 2 and are anchored there by a retaining bolt 139. The purpose of this arrangement is that the lateral drift of the compression spring can be kept optimally low under load.
  • the pretension height of the compression spring 21 is set by means of a holding belt 121 with belt loops 122 on holding screws 124 which are fastened to the inner edge 123 of the longitudinal frame 2.
  • the upper cross members 16 are secured against longitudinal displacement by the longitudinal belts 29.
  • the pressure values are set with the lower measuring plane 125 of the spring plate on the opposite measuring scale 100 using a hexagon wrench, which is inserted in the hexagon socket 105 and guided by the guide holder 115.
  • the pressure values are determined with the aid of the measuring rod 60, which slides against a pressure element 128 in the measuring plate recess 50, by the measuring rod with its angular extension 129 in the loaded measuring position. is guided up to the stop against the underside of the upper cross member 16.
  • the determined pressure values are then fixed with the caliper 10. This arrangement has the advantage that the measuring stick can be pushed into the recess 50 up to the angular extension after the measuring process and is thereby protected.
  • FIG. 29 An embodiment variant of the third invention is shown in FIG. 29.
  • the technical, work and material expenditure is reduced by avoiding the middle bore and a recess in the receiving bore and the pressure setting can be carried out directly at the top of the upper crossmember using a hexagon socket or screw slot.
  • center-side receiving bores 11 are arranged, in the bottom of which a spring plate 130 is fastened with a screw 131.
  • the compression spring 21 rests on the spring plate and is locked with the spring bend 110 in a holding hole 137 of the spring plate 136.
  • the cross member 16 has a bore 116 in which a threaded bolt 132 with its upper shoulder 133, which is designed as an internal hexagon, rests.
  • a washer 134 is attached to the hexagon socket with a stop against the underside of cross member 16.
  • the upper spring plate 136 slides in the thread 135 of the threaded bolt.
  • the compression spring 21 presses, via the spring plate 136, the threaded bolt 132 with its washer 134 against the underside 127 of the crossmember 16.
  • the pressure can now be set easily with a hexagon wrench, the upper edge 138 of the spring plate is the measuring plane and corresponds to the measuring plane of the right-angled bend of the measuring staff 60.
  • the cross belts 119 are in this embodiment variant on a retaining bolt 139 with a loop on the underside of the cross Carrier 16 attached in the same course as in the previous variant.
  • the longitudinal straps and the tether straps are attached in the same way as in the previous embodiment.

Abstract

1. Lower mattress with cross beams (16) as support for an upper mattress, where each cross beam is attached to the support frame of the lower mattress by means of a flexible connection piece that can be adjusted with respect to its spring strength, whereby each connection piece has a pre-selectable compression spring (21), characterized in that the compressing spring (21), as is common knowledge, can be adjusted by means of an adjustment screw (22), in that each connection piece consists of a spring plate (23, 17) arranged in a location borehole (11) of the support frame (1) and resting on the cross beam (16) with an outward-facing molding piece (24) to hold the compression springs (21), in that the location borehole (11) extends over a part of the thickness of the support frame (1), in that there is an internal screw thread sleeve (14) in a borehole (13) in the middle axis and above the spring plate (23) located in the support frame (1) and the adjustment screw (22) for adjusting the pre-selection of the compression springs (21) passes through this sleeve, and in that the lengthwise beams (2) of the support frame (1) are reinforced on their lower side by an additional beam (6), to which is affixed a measurement scale (8) for setting the pre-selection values of the compression springs (21).

Description

Die Erfindung betrifft eine Untermatratze mit Querträgern als Auflage für eine Obermatratze, bei der jeder Querträger mittels eines in seiner Federstärke veränderbaren elastischen Verbindungsstücks am Auflegerahmen der Untermatratze befestigt ist, wobei jedes Verbindungsstück eine vorspannbare Druckfeder aufweist.The invention relates to a bottom mattress with cross members as a support for a top mattress, in which each cross member is fastened to the support frame of the bottom mattress by means of an elastic connecting piece which can be changed in spring strength, each connecting piece having a prestressable compression spring.

Eine derartige Untermatratze ist nach der DE-B-2532583 bekannt. Die Federung aus Gummischeiben oder Schraubenfedern kann mittels einer Verstellschraube maximal 1 cm vorgespannt werden, während der Federweg maximal 2 cm beträgt. Diese Art der Vorspannung führt dazu, dass unterschiedliche Körpergewichte nicht ausreichend in der Federhärte berücksichtigt werden können.Such a bottom mattress is known from DE-B-2532583. The suspension made of rubber washers or coil springs can be pre-tensioned by a maximum of 1 cm, while the spring travel is a maximum of 2 cm. This type of preload means that different body weights cannot be sufficiently taken into account in the spring hardness.

Eine Lösung dieses Problems bietet die DE-A-3144548, bei welcher jedes Verbindungsstück aus einer in einer Aufnahmebohrung des Auflegerahmens angeordneten und mit diesem fest verbundenen unteren Teleskophülse zur Einstellung einer Einstellmutter und des unteren Teiles der Druckfeder sowie einer mit der unteren verbundenen oberen Teleskophülse besteht.A solution to this problem is provided by DE-A-3144548, in which each connecting piece consists of a lower telescopic sleeve arranged in a receiving bore of the support frame and fixedly connected to this for setting an adjusting nut and the lower part of the compression spring, and an upper telescopic sleeve connected to the lower one .

Nachteilig bei dieser Ausbildung ist, dass die für die einzelnen Körpergewichte notwendigen Federvorspannwerte nicht unmittelbar eingestellt werden können und daher der Einstellvorgang zeitaufwendig ist.A disadvantage of this design is that the spring preload values required for the individual body weights cannot be set directly, and the setting process is therefore time-consuming.

Der Erfindung liegt die Aufgabe zugrunde, diesen Nachteil zu vermeiden.The object of the invention is to avoid this disadvantage.

Diese Aufgabe wird erfindungsgemäss dadurch gelöst, dass bei einer Untermatratze der eingangs genannten Art die Druckfeder, wie aus der DE-B-2532583 bekannt, mittels einer Verstellschraube verstellbar ist, dass jedes Verbindungsstück aus einem in einer Aufnahmebohrung des Auflegerahmens angeordneten und am Querträger anliegenden Federteller mit einer aussenwandigen Abkröpfung zur Aufnahme der Druckfedern besteht, dass die Aufnahmebohrung sich über einen Teil der Dicke des Auflegerahmens erstreckt, dass in der Mittelachse und oberhalb des im Auflegerahmen angeordneten Federtellers in einer Bohrung eine Innengewindehülse angeordnet ist, in welcher die Verstellschraube zur Verstellung der Vorspannung der Druckfedern geführt ist, und dass die Längszargen des Auflegerahmens an ihrer Unterseite durch eine weitere Zarge verstärkt sind, an welcher eine Messskala zur Einstellung der Vorspannwerte der Druckfeder angeordnet ist,This object is achieved according to the invention in that, in the case of a sub-mattress of the type mentioned at the outset, the compression spring, as is known from DE-B-2532583, can be adjusted by means of an adjusting screw in that each connecting piece consists of a spring plate arranged in a receiving bore in the support frame and resting on the cross member With an outer-walled offset for receiving the compression springs, the receiving bore extends over part of the thickness of the support frame, and an inner threaded sleeve is arranged in a bore in the central axis and above the spring plate arranged in the support frame, in which the adjusting screw for adjusting the pretension the compression springs are guided, and that the longitudinal frames of the support frame are reinforced on their underside by a further frame on which a measuring scale for setting the preload values of the compression spring is arranged,

Eine weitere Möglichkeit, die Aufgabe bei einer Untermatratze der eingangs genannten Art zu lösen, besteht darin, dass die Druckfeder mit einem Ende in einer Aufnahmebohrung einer Längszarge des Auflegerahmens angeordnet ist und mit dem anderen Ende am Querträger gehalten ist, dass seitlich an den Längszargen der Querträger je eine Platte mit einer Messskala angeordnet ist, auf welcher ein Messschieber verschiebbar und befestigbar ist, dass die Platten eine Aussparung aufweisen, in welcher eine am Querträger befestigte Messlatte verschiebbar ist, dass unterhalb der Querträger mit Abstand untere Querträger angeordnet sind und dass zwischen den oberen und unteren Querträgern, welche von Halterungen zur Fixierung der Druckfedern umfasst sind, ein Druckluftschlauch zur Einstellung der Federvorspannwerte angeordnet ist.Another way to solve the problem with a base mattress of the type mentioned is that the compression spring is arranged at one end in a receiving bore of a longitudinal frame of the support frame and is held at the other end on the cross member that laterally on the longitudinal frames A girder with a measuring scale is arranged on each crossbeam, on which a caliper can be moved and fastened, that the plates have a recess in which a measuring stick attached to the crossbeam can be moved, that below the crossbeams are spaced lower crossbeams and that between the A compressed air hose for adjusting the spring preload values is arranged in the upper and lower crossbeams, which are comprised of brackets for fixing the compression springs.

Eine dritte Möglichkeit zur Lösung der Aufgabe bei einer Untermatratze der eingangs genannten Art besteht darin, dass die Druckfeder mit einem Ende in einer Aufnahmebohrung einer Längszarge des Auflegerahmens angeordnet ist und mit dem anderen Ende am Querträger gehalten ist, dass seitlich an der Längszarge der Querträger je eine Platte mit einer Messskala angeordnet ist, auf welcher ein Messschieber verschiebbar und befestigbar ist, dass die Platten eine Aussparung aufweisen, in welcher eine Messlatte gegen ein Druckelement verschiebbar gleitet und in der belasteten Messstellung mittels eines Winkelansatzes bis zum Anschlag gegen die Unterseite des Querträgers geführt ist und dass unterhalb der Querträger zwischen den Längszargen des Auflegerahmens Quergurte verschränkt angeordnet sind, die von Halterungen zur Fixierung der Druckfedern umfasst sind.A third way to solve the problem with a sub-mattress of the type mentioned is that the compression spring is arranged with one end in a receiving bore of a longitudinal frame of the support frame and with the other end is held on the cross member that the side of the longitudinal frame of the cross member a plate with a measuring scale is arranged, on which a caliper can be moved and fastened, that the plates have a recess in which a measuring stick slides against a pressure element and, in the loaded measuring position, is guided up to the stop against the underside of the crossmember by means of an angle attachment is and that below the cross member between the longitudinal frames of the support frame transverse straps are arranged, which are encompassed by brackets for fixing the compression springs.

Weiterbildungen dieser 3 Erfindungen sind in den abhängigen Ansprüchen enthalten.Further developments of these 3 inventions are contained in the dependent claims.

Diese drei Erfindungen werden nachstehend anhand von in den Zeichnungen dargestellten Ausführungsbeispielen näher beschrieben und erläutert. Es zeigt:

  • Fig. 1 eine Draufsicht auf die Querträger nach einer ersten Erfindung;
  • Fig. 2 einen Schnitt durch ein Verbindungsstück entsprechend A-A nach Fig. 1;
  • Fig. 3 einen Schnitt entsprechend B-B nach Fig. 1 und
  • Fig. 4 eine Ausbildung, wo anstatt eines Holzrahmens ein Metallprofilrahmen verwendet wird;
  • Fig. 5 und 6 einen Teil einer Untermatratze mit einer mechanisch-manuellen Messung des Auflagedrucks und der Gegendruckeinstellung;
  • Fig. 7 eine allgemeine Anordnung einer elektronischen Druckmessung;
  • Fig. 8 eine elektro-mechanische Ausführungsform für das Stellglied nach Fig. 7;
  • Fig. 9 eine elektro-pneumatische oder elektro-hydraulische Ausführungsform des Stellgliedes nach Fig. 7;
  • Fig. 10 eine Draufsicht auf das Möbel nach einer zweiten Erfindung;
  • Fig. 11 Schnitt C-C nach Fig. 10 entsprechend einer ersten Ausführungsform der zweiten Erfindung;
  • Fig. 12 Schnitt E-E nach Fig. 11;
  • Fig. 13 eine Draufsicht auf die Messvorrichtung;
  • Fig. 14 Schnitt C-C nach Fig. 10 entsprechend einer zweiten Ausführungsform der zweiten Erfindung;
  • Fig. 15 eine Ansicht der Messvorrichtung nach Fig. 14;
  • Fig. 16 einen Schnitt D-D nach Fig. 10 entsprechend einer dritten Ausführungsform der zweiten Erfindung;
  • Fig. 17 und 18 die Messung des Auflagedruckes nach Fig. 16;
  • Fig. 19 schematisch das Zusammenlegen des Auflegerahmens;
  • Fig. 20 einen Schnitt D-D nach Fig. 10 entsprechend einer vierten Ausführungsform der zweiten Erfindung;
  • Fig. 21 und 22 Schnitte C-C und F-F nach Fig. 10 entsprechend einer fünften Ausführungsform der zweiten Erfindung;
  • Fig. 23 eine Draufsicht auf die Messskala nach Fig. 21, und
  • Fig. 24 die Vergrösserung der Messskala nach Fig. 23;
  • Fig. 25 eine Draufsicht auf das Möbel nach einer dritten Erfindung;
  • Fig. 26 einen Schnitt A-A nach Fig. 25;
  • Fig. 27 eine Ansicht der Quergurte der Fig. 25;
  • Fig. 28 einen Schnitt A-A nach Fig. 25 entsprechend einer zweiten Ausführungsform der dritten Erfindung, und
  • Fig. 29 eine Ansicht der Messvorrichtung nach Fig. 25.
These three inventions are described and explained in more detail below with reference to exemplary embodiments illustrated in the drawings. It shows:
  • Figure 1 is a plan view of the cross member according to a first invention.
  • 2 shows a section through a connector corresponding to AA of FIG. 1.
  • Fig. 3 shows a section corresponding to BB of Fig. 1 and
  • 4 shows an embodiment where a metal profile frame is used instead of a wooden frame;
  • 5 and 6 show a part of a base mattress with a mechanical-manual measurement of the contact pressure and the back pressure setting;
  • Fig. 7 shows a general arrangement of an electronic pressure measurement;
  • 8 shows an electro-mechanical embodiment for the actuator according to FIG. 7;
  • 9 shows an electro-pneumatic or electro-hydraulic embodiment of the actuator according to FIG. 7;
  • 10 is a plan view of the furniture according to a second invention;
  • FIG. 11 section CC according to FIG. 10 according to a first embodiment of the second invention;
  • Fig. 12 section EE of FIG. 11;
  • 13 is a plan view of the measuring device;
  • FIG. 14 section CC according to FIG. 10 according to a second embodiment of the second invention;
  • 15 shows a view of the measuring device according to FIG. 14;
  • FIG. 16 shows a section DD according to FIG. 10 in accordance with a third embodiment of the second invention;
  • 17 and 18 the measurement of the contact pressure according to FIG. 16;
  • 19 schematically shows the folding of the support frame;
  • FIG. 20 shows a section DD according to FIG. 10 in accordance with a fourth embodiment of the second invention;
  • 21 and 22 show sections CC and FF according to FIG. 10 according to a fifth embodiment of the second invention;
  • FIG. 23 is a top view of the measuring scale according to FIG. 21, and
  • 24 shows the enlargement of the measuring scale according to FIG. 23;
  • 25 is a plan view of the furniture according to a third invention;
  • FIG. 26 shows a section AA according to FIG. 25;
  • Fig. 27 is a view of the cross belts of Fig. 25;
  • 28 shows a section AA according to FIG. 25 according to a second embodiment of the third invention, and
  • 29 is a view of the measuring device according to FIG. 25.

Entsprechend Fig. 1 nach der ersten Erfindung werden in den Auflegerahmen 1 Aufnahmebohrungen 11 eingebracht, die etwa % der Rahmendicke umfassen. In dem stehengebliebenen Bohrungsboden 12 wird eine mittlere Bohrung 13 für eine Innengewindehülse 14 angebracht. Die Längszargen 2 des Auflegerahmens werden an ihrer Unterseite durch eine weitere Zarge 6 verstärkt, die den Auflegerahmen gegen Durchbiegen nach unten sichert, während die gleiche Funktion von kopf- und fussseitigen Vertikalzargen 4 ausgeübt wird. In dem Innengewinde der Hülse 14 ist eine Verstellschraube 22 geführt, die einen Federteller 23 mit einer aussenwandigen Abkröpfung 24 aufweist, innerhalb der eine Druckfeder 21 aufsitzt. Unten hat die Verstellschraube 22 entweder eine Rändelmutter oder einen halbrunden Schraubenkopf 25 mit einer Einlasung zum Verstellen der Vorspannung. An Querträgern 16 ist an deren Unterseite über der gedachten Mittelachse des Federtellers 23 ebenfalls ein Federteller 17 oder eine kleine runde Ausfräsung angeordnet, um die vorgespannte Druckfeder zu halten. An der Zarge 6 des Auflegerahmens 1 sind gegenüber der Verstellschraube 22 Messskalen 8 angebracht, an denen die gewünschten Federvorspannwerte eingestellt werden können. Hierzu dient die Oberkante 26 des Schraubenkopfs 25. Mit Quergurten 28, die an der Zarge 6 und am Querträger 16 gehalten sind, werden über eine Druckscheibe 20 und über Halteschrauben 19 die Querträger 16 sowohl in ihrer Höhe fixiert als auch gegen seitliches Verschieben gesichert. Zwischen Druckscheibe und Halteschrauben werden auch gleichzeitig Längsgurte 29 befestigt und am Auflegerahmen 1 kopf- und fussseitig über Gurtschlitze 5 an Querzargen 3 arretiert, womit eine Längsverschiebung der Querträger 16 verhindert und gegenüber einem Doppelhaltegurt Material gespart und die Flexibilität der Querträger um ihre Längsachse erhöht wird. Durch die Abkröpfung 24 des Federtellers 23 kann der Vorspannung über die obere Horizontalebene des Auflegerahmens hinaus erhöht werden, so dass insgesamt die Rahmenstärke 7 um den gleichen Wert der Höhe 27 der Abkröpfung vermindert werden und damit Material eingespart werden kann.According to FIG. 1 according to the first invention, receiving holes 11 are made in the support frame 1, which comprise approximately% of the frame thickness. A central bore 13 for an internally threaded sleeve 14 is made in the bore bottom 12 that has remained. The longitudinal frames 2 of the support frame are reinforced on their underside by a further frame 6, which secures the support frame against bending downwards, while the same function is performed by vertical frames 4 on the head and foot sides. In the internal thread of the sleeve 14, an adjusting screw 22 is guided, which has a spring plate 23 with an outer-walled bend 24, within which a compression spring 21 is seated. At the bottom, the adjusting screw 22 has either a knurled nut or a semicircular screw head 25 with a recess for adjusting the pretension. A spring plate 17 or a small round cutout is also arranged on crossbeams 16 on their underside above the imaginary central axis of the spring plate 23 in order to hold the prestressed compression spring. On the frame 6 of the support frame 1, measuring scales 8 are attached opposite the adjusting screw 22, on which the desired spring preload values can be set. The upper edge 26 of the screw head 25 is used for this purpose. With cross belts 28, which are held on the frame 6 and on the cross member 16, the cross members 16 are both fixed in terms of their height and secured against lateral displacement by means of a thrust washer 20 and retaining screws 19. Longitudinal belts 29 are also simultaneously fastened between the thrust washer and retaining screws and are locked to the frame 1 on the head frame and foot side via belt slots 5 on transverse frames 3, which prevents longitudinal displacement of the cross members 16 and saves material compared to a double holding belt and increases the flexibility of the cross members about their longitudinal axis. The offset 24 of the spring plate 23 allows the pretension to be increased beyond the upper horizontal plane of the support frame, so that overall the frame thickness 7 is reduced by the same value as the height 27 of the offset and material can thus be saved.

Anstelle eines Holzrahmens kann alternativ, wie Fig. 4 zeigt, auch ein Metallprofilrahmen 30 mit eingeschweisstem Schraubengewinde 31 eingesetzt werden, wodurch das Rahmengewicht reduziert wird.Instead of a wooden frame, alternatively, as shown in FIG. 4, a metal profile frame 30 with welded screw thread 31 can also be used, as a result of which the frame weight is reduced.

An der Längszarge 2 des Auflegerahmens 1 sind entsprechend Fig. 6 an den äusseren vertikalen Flächen vor jeder Druckfeder-Druckwerte-Messskalen 9 angeordnet. An der schmalen Aussenkante des Querträgers 16 ist ein Druckanzeiger 32 lösbar befestigt. Bei Druckbelastung gleitet dieser Anzeiger entlang der Skala 9 und zeigt mit seiner unteren horizontalen Abschlusskante den jeweiligen Druckwert an, der mit einem Messschieber oder -zeiger 33 an der Skala 9 fixiert werden kann. Der gewünschte Gegendruck wird direkt durch Betätigung des Schraubenkopfes 25 der Verstellschraube 22 eingestellt. Damit können für jeden Benutzer in einer bestimmten Liegeposition die Auflagedruck-Werte des Körpers in den einzelnen Druckzonen direkt ohne weiteres Rechnen ermittelt werden, um aufgrund dieser Messwerte den gewünschten Gegendruck ebenso schnell einstellen zu können.According to FIG. 6, the longitudinal frame 2 of the support frame 1 is arranged on the outer vertical surfaces in front of each pressure spring pressure value measuring scale 9. A pressure indicator 32 is detachably attached to the narrow outer edge of the cross member 16. When pressure is applied, this indicator slides along the scale 9 and, with its lower horizontal end edge, shows the respective pressure value, which can be fixed on the scale 9 with a caliper or pointer 33. The desired counter pressure is set directly by actuating the screw head 25 of the adjusting screw 22. In this way, the contact pressure values of the body in the individual pressure zones can be determined directly for each user in a specific lying position without further calculation, in order to be able to set the desired back pressure just as quickly on the basis of these measured values.

Fig. 7 zeigt allgemein die Anordnung einer elektronischen Druckmessung, bei welcher mit jedem Querträger 16 ein Messfühler 34 verbunden ist, der über eine Regelanordnung 36 ein Stellglied 37 zur Einstellung des Gegendrucks auf den Federteller 23 der Druckfeder 21 betätigt. Mit dem Messfühler werden die Druckwerte 35 elektronisch gemessen.FIG. 7 generally shows the arrangement of an electronic pressure measurement, in which a measuring sensor 34 is connected to each cross member 16 and actuates an actuator 37 via a control arrangement 36 for setting the counterpressure on the spring plate 23 of the compression spring 21. The pressure values 35 are measured electronically with the sensor.

Fig. 8 zeigt in einer Variante das System nach Fig. 7 für eine elektro-mechanische Ausführung des Stellgliedes. Im Innengewinde der Hülse 14 wird eine Verstellschraube 42 geführt, an der der mit der Abkröpfung 24 versehene Federteller 23 befestigt ist, auf dem die Druckfeder 21 aufliegt und vom Federteller 17, der am Querträger 16 befestigt ist, gehalten wird. Mit dem Messfühler 34 werden die Druckwerte 35 elektronisch gemessen und die Messwertimpulse an die Regelanordnung 36 weitergegeben, die den gewünschten Gegendruck durch einen Impuls an einen Elektro-Stellmotor 38 weitergibt, der eine Welle 39 aufweist, an der sich eine Schnecke 40 befindet, die mit einem Schneckenrad 41 mit Innengewinde verbunden ist, wobei die Verstellschraube 42 be= wegt wird. An der Gewindestange befindet sich ein Messteller 43, dessen Oberkante 26 die Messwerte an der Messskala 8 anzeigt.Fig. 8 shows a variant of the system of Fig. 7 for an electro-mechanical design of the actuator. In the internal thread of the sleeve 14, an adjusting screw 42 is guided, to which the spring plate 23 provided with the offset 24 is fastened, on which the compression spring 21 rests and is held by the spring plate 17, which is fastened to the cross member 16. With the sensor 34, the pressure values 35 are measured electronically and the measured value impulses are passed on to the control arrangement 36, which transmits the desired back pressure by an impulse to an electric servomotor 38, which has a shaft 39, on which there is a screw 40, which is connected to a worm wheel 41 is connected to an internal thread, the adjusting screw 42 being moved. A measuring plate 43 is located on the threaded rod, the upper edge 26 of which shows the measured values on the measuring scale 8.

Fig. 9 zeigt eine elektro-pneumatische oder elektro-hydraulische Ausführung des Stellgliedes nach Fig. 7, wobei der Stellmotor 38 eine Pumpe 44 antreibt, die pneumatisch oder hydraulisch einen Zylinder 45 füllt und einen Kolben 46 anhebt. Am Kolben 46 befindet sich eine Kolbenstange 47, die in einer Hülse 15 gleitet und in ihrem oberen Abschluss den Federteller 23 trägt und einen Messteller 48 aufweist, dessen Oberkante 26 die Messwerte in der Skala 8 anzeigt.FIG. 9 shows an electro-pneumatic or electro-hydraulic embodiment of the actuator according to FIG. 7, the actuator 38 driving a pump 44 which pneumatically or hydraulically fills a cylinder 45 and lifts a piston 46. On the piston 46 there is a piston rod 47 which slides in a sleeve 15 and carries the spring plate 23 in its upper end and has a measuring plate 48, the upper edge 26 of which shows the measured values in the scale 8.

Mit der elektronischen Regelung wird erreicht, dass die in den verschiedenen Schlaflagen auftretenden Druckwerte automatisch erfasst und die gewünschten Gegendruckwerte sofort eingestellt werden. Bei vollem Druckausgleich zwischen Auflagedruck des Körpers und Gegendruck wird in der Liegestellung das Gefühl eines Schwebezustandes erreicht. Allgemein ist die Erfindung bei allen Personen anwendbar, bei denen es auf eine optimale Liegequalität durch exakten Auflagedruck-Ausgleich ankommt.With the electronic control it is achieved that the pressure values occurring in the different sleeping positions are automatically recorded and the desired back pressure values are set immediately. With full pressure compensation between the contact pressure of the body and counter pressure, the feeling of a floating state is achieved in the lying position. In general, the invention is applicable to all persons who require an optimal lying quality through exact contact pressure compensation.

Bei einer ersten Ausführungsform der zweiten Erfindung entsprechend den Fig. 10 bis 13 sind auf dem Auflegerahmen 1 an der Längszarge 2 auf deren Oberseite die Aufnahmebohrungen 11 und an der Aussenseite der Längszarge eine Platte 49, die Messskala 8, ein Messschieber 10 und eine Aussparung 50 vorgesehen. In der Aufnahmebohrung 11 ruht die Druckfeder 21 und wird oben vom Federteller 17, der am Querträger 11 befestigt ist, gehalten. Untere Querträger 51 sind im Abstand von den oberen Querträgern 16 mit der Längszarge 2 lösbar durch Schrauben 52 oder dgl. verbunden. Die vorgespannte Druckfeder 21 wird durch eine Halterung 53 fixiert. Auf den unteren Querträgern 51 ist eine Luftschlauchhalterung 54 befestigt. In ihr ruht ein Druckluftschlauch 55 mit einem Ventil 56 und ist von einem Schlauchmantel 57 umgeben. Die oberen Querträger 16 decken den Schlauchmantel ab und werden in ihrer Längsrichtung gegen Verschieben durch einen Haltegurt 58 gesichert. Der Haltegurt ist an der Querzarge 3 des Auflegerahmens 1 lösbar mittels einer Halterung befestigt. Die Auflagedruckwerte werden vorteilhaft an dem in Seitenlage aufliegenden Körper ermittelt, wobei ausserdem die bei normalen Schlafgewohnheiten in Frage kommenden kopf- und fussseitigen Bewegungsspielräume berücksichtigt werden. In der Aussparung 50 ist eine am Querträger 16 mittels einer Halterung 59 befestigte Messlatte 60 verschiebbar. Die jeweiligen an dieser Messlatte ermittelten Eindruckwerte werden, wie aus Fig. 13 ersichtlich ist, auf dem Schieber 10 festgehalten. Der Druckwert wird dann mit Hilfe einer Druckpumpe über das Ventil 56 an dem Druckluftschlauch 55 eingestellt. Dadurch wird die Wirbelsäule des Benutzers des Liegemöbels in eine anatomisch gesunde, gerade Lage gebracht. Aber auch bei Fehlbildungen kann die Lage der Wirbelsäule sowohl in der Rückenals auch in der Seitenlage durch entsprechende Druckeinstellung korrigiert werden, womit Muskelverspannungen während der Schlafzeit vermieden werden.In a first embodiment of the second invention according to FIGS. 10 to 13, the receiving bores 11 are on the support frame 1 on the longitudinal frame 2 on the upper side thereof and a plate 49, the measuring scale 8, a caliper 10 and a recess 50 on the outside of the longitudinal frame intended. The compression spring 21 rests in the receiving bore 11 and is held at the top by the spring plate 17 which is fastened to the cross member 11. Lower cross members 51 are detachably connected to the longitudinal frame 2 at a distance from the upper cross members 16 by screws 52 or the like. The prestressed compression spring 21 is fixed by a holder 53. An air hose bracket 54 is attached to the lower cross members 51. A compressed air hose 55 with a valve 56 rests in it and is surrounded by a hose jacket 57. The upper cross members 16 cover the hose jacket and are secured in their longitudinal direction against displacement by a tether 58. The tether is releasably attached to the cross frame 3 of the support frame 1 by means of a bracket. The contact pressure values are advantageously determined on the body lying on its side, taking into account the freedom of movement on the head and foot sides in normal sleeping habits. A measuring stick 60 fastened to the cross member 16 by means of a holder 59 can be displaced in the recess 50. The respective indentation values determined on this measuring staff are, as can be seen from FIG. 13, recorded on the slide 10. The pressure value is then set by means of a pressure pump via the valve 56 on the compressed air hose 55. As a result, the spine of the user of the reclining furniture is brought into an anatomically healthy, straight position. But even in the event of malformations, the position of the spine can be corrected in the back as well as in the lateral position by adjusting the pressure accordingly, thus avoiding muscle tension during sleep.

Ein zweites Beispiel für die Ausführung der zweiten Erfindung ist im Schnitt in Fig. 14 und perspektivisch in Fig. 15 dargestellt. Auf den unteren Querträgern des Auflegerahmens liegt ein Luftzellenpolster 61 mit Ventilen 62, dessen einzelne Zellen 63 über Stege 64 und Pufferzellen 65 miteinander verbunden sind. Auf dem Luftzellenpolster ruhen die oberen Querträger 16, die, wie bei der ersten Ausführungsform, die Druckfeder 21 im Federteller 17 und der Aufnahmebohrung 11 durch die Halterung 53 mit Vorspanndruck fixieren.A second example of the embodiment of the second invention is shown in section in FIG. 14 and in perspective in FIG. 15. An air cell cushion 61 with valves 62 is located on the lower cross members of the support frame, the individual cells 63 of which are connected to one another via webs 64 and buffer cells 65. The upper crossbeams 16 rest on the air cell cushion, which, as in the first embodiment, fix the compression spring 21 in the spring plate 17 and the receiving bore 11 by means of the holder 53 with pretensioning pressure.

Diese Variante hat den Vorteil, dass die Untermatratze, nachdem die Messwerte ermittelt sind, aus dem Auflegerahmen 1 mit den unteren Querträgern 51 an den Schrauben 52 gelöst werden kann. Nachdem die Druckzellen entleert sind, kann sie dann leicht zusammengerollt transportiert werden. Durch diese Massnahme ist die Untermatratze bei sehr engen Raumverhältnissen, z.B. in Wohnmobilen oder Campingwagen und Zelten, besonders geeignet, direkt auf den Fussboden gelegt zu werden, wenn die vorher festgehaltenen Messdruckwerte eingestellt sind.This variant has the advantage that after the measured values have been determined, the base mattress can be released from the support frame 1 with the lower cross members 51 on the screws 52. After the pressure cells have been emptied, they can be rolled up and transported easily. Due to this measure, the base mattress is very tight, e.g. in mobile homes or caravans and tents, particularly suitable to be placed directly on the floor if the previously set measurement pressure values have been set.

Bei der dritten Ausführungsform der zweiten Erfindung werden die Messwerte in der beschriebenen Weise ermittelt und entsprechend Fig. 16 über Faltenbälge 66, die aus entsprechend festem Kunststoffmaterial, z. B. Teflon oder Kautschuk, bestehen können, im Druck über ein Ventil 67 eingestellt. Diese Faltenbälge haben den Vorteil, dass sie wegen des festen Materials bei Druck seitlich nicht ausbeulen können und sich daher dem Körperdruck nach unten und seitlich flexibel anpassen. Die Faltenbälge ruhen mit ihrem Ventileinatz 68 in einer Bohrung 69 der Längszarge 2, während sie oben an den oberen Querträgern 16 durch eine Halterung 70 befestigt sind. Die oberen Querträger werden durch den Längshaltegurt 58 gegen Längsverschiebung und durch einen Querhaltegurt 71 gegen Querverschiebung gesichert.In the third embodiment of the second invention, the measured values are determined in the manner described and, according to FIG. 16, via bellows 66, which are made of a correspondingly strong plastic material, e.g. B. Teflon or rubber, can be set in pressure via a valve 67. These bellows have the advantage that they cannot bulge sideways under pressure due to the solid material and therefore flexibly adapt to body pressure downwards and sideways. The bellows rest with their valve insert 68 in a bore 69 of the longitudinal frame 2, while they are fastened at the top to the upper cross members 16 by a holder 70. The upper crossmember is secured against longitudinal displacement by the longitudinal tether 58 and against transverse displacement by a transverse tether 71.

Für die Regelung des Auflagedruckes werden entsprechend den Fig. 17 und 18 mit einem Messfühler 34 die Druckwerte 35 elektronisch gemessen und die Messwertimpulse an die Regelanordnung 36 weitergegeben. Diese steuert den Elektromotor 38, der mittels der Pumpe 44 das pneumatische oder hydraulische Druckmittel über ein Rückschlagventil 72 in den Faltenbalg 66 treibt. Soll der Druck im Faltenbalg gesenkt werden, so bewirken die Messwertimpulse des Messfühlers 34 über die elektronische Regelung ein Öffnen des Auslassventils 73.17 and 18, the pressure values 35 are measured electronically with a measuring sensor 34 and the measured value pulses are passed on to the control arrangement 36 in order to control the contact pressure. This controls the electric motor 38, which drives the pneumatic or hydraulic pressure medium via a check valve 72 into the bellows 66 by means of the pump 44. If the pressure in the bellows is to be reduced, the measured value pulses from the sensor 34 cause the outlet valve 73 to open via the electronic control.

Anstelle von Motor und Pumpe kann auch ein Druckspeichergefäss 74, wie in Fig. 18 dargestellt, verwendet werden. Der Druckanstieg wird durch Öffnen des Ventils 75 bewirkt, der Druckabfall durch Öffnen des Auslassventils 73. Bei dieser Variante ist eine Kolbenanordnung nicht nötig.Instead of the motor and pump, a pressure storage vessel 74, as shown in FIG. 18, can also be used. The pressure increase is caused by opening the valve 75, the pressure drop by opening the outlet valve 73. In this variant, a piston arrangement is not necessary.

In der Fig. 19 ist schematisch gezeigt, wie der Auflegerahmen nach Fig. 12 für Reisezwecke über ein Scharnier 76 zusammengelegt werden kann. Eine entsprechende Möglichkeit besteht auch für die Ausführungsvariante nach Fig. 16.FIG. 19 shows schematically how the support frame according to FIG. 12 can be folded over a hinge 76 for travel purposes. A corresponding possibility also exists for the embodiment variant according to FIG. 16.

Bei einer vierten Ausführungsform der zweiten Erfindung nach Fig. 20 wird in die Aufnahmebohrung 11 der Längszargen 2 des Auflegerahmens 1 eine Gewindebuchse 77 eingelassen, in der ein Federteller 78 mit Aussengewinde und ein Konus 79 zur Fixierung der Druckfeder 21 angeordnet sind. Die Druckfeder, die auf dem Federteller ruht, hat die gleichen Eigenschaften wie bei den vorhergehenden Varianten. Zur Verstellung der Druckfeder 21 besitzt der Federteller unten einen Innensechskant 80. Der Innensechskant ist über eine Bohrung 81 in der Längszarge 2 mit Hilfe eines Einstellschlüssels 82, der eine Messskala 83 und einen Sechskantzapfen 84 sowie ein Griffrad 85 aufweist, zugänglich. Die übrigen Merkmale, wie Messeinrichtungen und Längshaltegurte mit Querhaltegurten, sind baugleich mit den vorherigen Ausführungsformen.In a fourth embodiment of the second invention according to FIG. 20, a threaded bushing 77 is inserted into the receiving bore 11 of the longitudinal frames 2 of the support frame 1, in which a spring plate 78 with an external thread and a cone 79 for fixing the compression spring 21 are arranged. The compression spring, which rests on the spring plate, has the same properties as in the previous variants. To adjust the compression spring 21, the spring plate has a hexagon socket 80 at the bottom. The hexagon socket is over a Bore 81 in the longitudinal frame 2 is accessible with the aid of an adjusting key 82, which has a measuring scale 83 and a hexagon pin 84 and a grip wheel 85. The other features, such as measuring devices and longitudinal belts with cross belts, are identical in construction to the previous embodiments.

Die letztgenannte Ausführungsform hat den Vorteil, dass der an allen Druckfedern einsetzbare Einstellschlüssel nur einmal für die jeweilige Fixierung der gemessenen Druckwertzonen notwendig ist.The latter embodiment has the advantage that the adjustment key that can be used on all compression springs is only required once for the respective fixing of the measured pressure value zones.

Fig. 21 und 24 zeigen eine fünfte Ausführungsform der zweiten Erfindung. In der Längszarge 2 ist in den Bohrungen 11 und 81 ein Gewindebolzen 86 mit Hilfe einer Einschlagmutter 87 und mittels eines Körnerschlages 88 verwindungsfrei befestigt. In dem Gewindebolzen gleitet ein Federteller 89 mit einem Innengewinde 90. Aussen weist der Federteller eine Verzahnung 91 auf. Seine untere Abschlussebene 92 ist gleichzeitig die Federteller-Messebene.21 and 24 show a fifth embodiment of the second invention. In the longitudinal frame 2, a threaded bolt 86 is fastened in the bores 11 and 81 by means of a drive-in nut 87 and by means of a punch 88 without twisting. A spring plate 89 with an internal thread 90 slides in the threaded bolt. The spring plate has teeth 91 on the outside. Its lower end level 92 is also the spring plate measuring level.

Die Aufnahmebohrung 11 weist aussenseitig eine Ausnehmung 93 auf. Die Verzahnung 91 des Federtellers 89 ist mit der Verzahnung 94 eines Antriebsbolzens 95 verbunden, der einen oberen Schlitz 96 aufweist und mittels eines Führungszapfens 97 in einer Führungsbohrung 98 ruht.The receiving bore 11 has a recess 93 on the outside. The toothing 91 of the spring plate 89 is connected to the toothing 94 of a drive pin 95 which has an upper slot 96 and rests in a guide bore 98 by means of a guide pin 97.

Mit Hilfe des Drehschlüssels 99, der in den Schlitz gesteckt wird, kann die Druckeinstellung der Druckfeder 21 vorgenommen werden. Mit der Platte 49 und dem Messschieber 10 sowie der Messlatte 60 kann die Druckzonenmessung an einer gegenläufigen Messskala 100 festgehalten werden. Dieser Druckwert wird mit Hilfe der unteren Federteller-Messebene 25 sichtbar zur Dekkung gebracht, so dass jederzeit die eingestellten Druckwerte sichtbar sind. Bei Druckeinstellung wird eine Verdrehung der Druckfeder durch einen drehbaren Halteteller 101 vermieden. Insgesamt bringt diese Ausführungsvariante eine wesentliche Vereinfachung in der Handhabung dadurch, dass die Einstellung direkt von oben vorgenommen werden kann, ohne dass der Auflegerahmen aufgehoben werden muss.With the help of the rotary key 99, which is inserted into the slot, the pressure setting of the compression spring 21 can be carried out. The pressure zone measurement can be held on an opposing measuring scale 100 with the plate 49 and the caliper 10 and the measuring stick 60. This pressure value is brought to cover by means of the lower spring plate measuring plane 25, so that the set pressure values are visible at all times. When the pressure is set, rotation of the compression spring by a rotatable holding plate 101 is avoided. Overall, this embodiment variant significantly simplifies handling in that the setting can be carried out directly from above without having to lift the support frame.

Nach Fig. 25 ist entsprechend einer dritten Erfindung im Auflegerahmen 1 in der Längszarge 2 eine Aufnahmebohrung 11 mit einer mittleren Bohrung 13 angeordnet, in der eine Haltebuchse 102 eingelassen ist. Auf dem Boden 103 der Haltebuchse ruht, um seine Vertikalachse beweglich, ein Gewindebolzen 104, der oben einen Innensechskant 105 oder wahlweise einen Schraubenschlitz 106 aufweist. In dem Gewindebolzen 104 gleitet ein Federteller 107 mit seinem Gewinde 108. In dem Federteller ist ein Befestigungsloch 109 angebracht, in dem das abgewinkelte Feder- . ende 110 der Druckfeder 21 eingreift. Die Druckfeder 21 wird am oberen Querträger 16 durch einen Halteteller 111, der in der Mitte eine runde Aussparung 112 und ein Halteloch 113 aufweist, in das das Ende der Federabwinkelung 114 der Druckfeder 21 eingreift, arretiert. Der obere Halteteller 111 wird von einer Führungshalterung 115, die in einer Bohrung 116 des oberen Querträgers 16 eingelassen ist, fixiert. An einem oberen Federring 117 der Druckfeder 21 ist eine Quergurtschlaufe 118 der Quergurte 1.19 befestigt. Die Quergurte 119 verlaufen mit den Gegengurten verschränkt bis zu der inneren Oberkante 120 der Längszarge 2 und sind dort durch einen Haltebolzen 139 verankert. Diese Anordnung hat den Zweck, dass die seitliche Abdriftung der Druckfeder bei Belastung optimal gering gehalten werden kann. Die Vorspannhöhe der Druckfeder 21 wird durch einen Haltegurt 121 mit Gurtschlaufen 122 an Halteschrauben 124, die an der Innenkante 123 der Längszarge 2 befestigt sind, eingestellt. Die oberen Querträger 16 werden durch die Längsgurte 29 gegen Längsverschiebung gesichert. Mit einem Sechskantschlüssel, der in dem Innensechskant 105 eingesetzt und von der Führungshalterung 115 geführt wird, werden die Druckwerte mit der unteren Messebene 125 des Federtellers an der gegenläufigen Messskala 100 eingestellt. Die Druckwerte werden mit Hilfe der Messlatte 60, die gegen ein Druckelement 128 verschiebbar in der Messplattenaussparung 50 gleitet, ermittelt, indem die Messlatte mit ihrem Winkelansatz 129 in der belasteten Messstellung. bis zum Anschlag gegen die Unterseite des oberen Querträgers 16 geführt wird. Mit dem Messschieber 10 werden dann die ermittelten Druckwerte fixiert. Diese Anordnung hat den Vorteil, dass die Messlatte nach dem Messvorgang bis zu dem winkelförmigen Ansatz in die Aussparung 50 geschoben werden kann und dadurch geschützt wird.25, according to a third invention, a receiving bore 11 with a central bore 13 is arranged in the support frame 1 in the longitudinal frame 2, in which a holding bushing 102 is embedded. A threaded bolt 104, which has an internal hexagon 105 or optionally a screw slot 106, rests on the bottom 103 of the holding bush, movable about its vertical axis. A spring plate 107 slides with its thread 108 in the threaded bolt 104. A fastening hole 109 is made in the spring plate, in which the angled spring. End 110 of the compression spring 21 engages. The compression spring 21 is locked on the upper cross member 16 by a holding plate 111, which has a round recess 112 in the middle and a holding hole 113 into which the end of the spring bend 114 of the compression spring 21 engages. The upper holding plate 111 is fixed by a guide holder 115 which is embedded in a bore 116 in the upper cross member 16. A cross belt loop 118 of the cross belts 1.19 is attached to an upper spring ring 117 of the compression spring 21. The transverse straps 119 are crossed with the counter straps up to the inner upper edge 120 of the longitudinal frame 2 and are anchored there by a retaining bolt 139. The purpose of this arrangement is that the lateral drift of the compression spring can be kept optimally low under load. The pretension height of the compression spring 21 is set by means of a holding belt 121 with belt loops 122 on holding screws 124 which are fastened to the inner edge 123 of the longitudinal frame 2. The upper cross members 16 are secured against longitudinal displacement by the longitudinal belts 29. The pressure values are set with the lower measuring plane 125 of the spring plate on the opposite measuring scale 100 using a hexagon wrench, which is inserted in the hexagon socket 105 and guided by the guide holder 115. The pressure values are determined with the aid of the measuring rod 60, which slides against a pressure element 128 in the measuring plate recess 50, by the measuring rod with its angular extension 129 in the loaded measuring position. is guided up to the stop against the underside of the upper cross member 16. The determined pressure values are then fixed with the caliper 10. This arrangement has the advantage that the measuring stick can be pushed into the recess 50 up to the angular extension after the measuring process and is thereby protected.

Eine Ausführungsvariante der dritten Erfindung ist in Fig. 29 dargestellt. Hier wird der technische, arbeitsmässige und materialmässige Aufwand verringert, indem in der Aufnahmebohrung die mittlere Bohrung und eine Ausnehmung vermieden und die Druckeinstellung direkt oben an dem oberen Querträger an einem Innensechskant oder Schraubenschlitz vorgenommen werden kann.An embodiment variant of the third invention is shown in FIG. 29. Here, the technical, work and material expenditure is reduced by avoiding the middle bore and a recess in the receiving bore and the pressure setting can be carried out directly at the top of the upper crossmember using a hexagon socket or screw slot.

In der Längszarge 2 des Auflegerahmens 1 sind mittelseitige Aufnahmebohrungen 11 angeordnet, in deren Boden ein Federteller 130 mit einer Schraube 131 befestigt ist. Auf dem Federteller ruht die Druckfeder 21 und ist mit der Federabwinkelung 110 in einem Halteloch 137 des Federtellers 136 arretiert. Vertikal über der Mitte des Federtellers weist der Querträger 16 eine Bohrung 116 auf, in der ein Gewindebolzen 132 mit seinem oberen Ansatz 133, der als Innensechskant ausgebildet ist, ruht. An dem Innensechskant mit Anschlag gegen die Unterseite des Querträgers 16 ist eine Scheibe 134 angebracht. In dem Gewinde 135 des Gewindebolzens gleitet der obere Federteller 136. Die Druckfeder 21 drückt über den Federteller 136 den Gewindebolzen 132 mit dessen Scheibe 134 gegen die Unterseite 127 des Querträgers 16. Die Druckeinstellung kann jetzt problemlos mit einem Sechskantschlüssel vorgenommen werden, wobei die obere Kante 138 des Federtellers die Messebene ist und mit der Messebene der rechtwinkeligen Abwinkelung der Messlatte 60 korrespondiert. Die Quergurte 119 werden bei dieser Ausführungsvariante an einem Haltebolzen 139 mit einer Schlaufe an der Unterseite des Querträgers 16 im gleichen Verlauf wie bei der vorigen Variante angebracht. Die Längsgurten und die Haltegurten sind in gleicher Weise wie beim vorigen Ausführungbeispiel befestigt.In the longitudinal frame 2 of the support frame 1, center-side receiving bores 11 are arranged, in the bottom of which a spring plate 130 is fastened with a screw 131. The compression spring 21 rests on the spring plate and is locked with the spring bend 110 in a holding hole 137 of the spring plate 136. Vertically above the center of the spring plate, the cross member 16 has a bore 116 in which a threaded bolt 132 with its upper shoulder 133, which is designed as an internal hexagon, rests. A washer 134 is attached to the hexagon socket with a stop against the underside of cross member 16. The upper spring plate 136 slides in the thread 135 of the threaded bolt. The compression spring 21 presses, via the spring plate 136, the threaded bolt 132 with its washer 134 against the underside 127 of the crossmember 16. The pressure can now be set easily with a hexagon wrench, the upper edge 138 of the spring plate is the measuring plane and corresponds to the measuring plane of the right-angled bend of the measuring staff 60. The cross belts 119 are in this embodiment variant on a retaining bolt 139 with a loop on the underside of the cross Carrier 16 attached in the same course as in the previous variant. The longitudinal straps and the tether straps are attached in the same way as in the previous embodiment.

Claims (17)

1. Lower mattress with cross beams (16) as support for an upper mattress, where each cross beam is attached to the support frame of the lower mattress by means of a flexible connection piece that can be adjusted with respect to its spring strength, whereby each connection piece has a pre-selectable compression spring (21), characterized in that the compressing spring (21), as is common knowledge, can be adjusted by means of an adjustment screw (22), in that each connection piece consists of a spring plate (23,17) arranged in a location borehole (11) of the support frame (1) and resting on the cross beam (16) with an outward-facing molding piece (24) to hold the compression springs (21), in that the location borehole (11) extends over a part of the thickness of the support frame (1), in that there is an internal screw thread sleeve (14) in a borehole (13) in the middle axis and above the spring plate (23) located in the support frame (1) and the adjustment screw (22) for adjusting the pre-selection of the compression springs (21) passes through this sleeve, and in that the lengthwise beams (2) of the support frame (1) are reinforced on their lower side by an additional beam (6), to which is affixed a measurement scale (8) for setting the pre-selection values of the compression springs (21).
2. Lower mattress according to claim 1, characterized in that the adjustment screw (22) has a milled nut or a semi-circular screw head (25), whose upper edge (26) corresponds with the measuring scale (8).
3. Lower mattress according to claim 2, characterized in that there is another measuring scale (9) located on the outer surfaces of the lengthwise beams (2) of the support frame (1) in front of each compression spring (21) and this measuring scale (9) corresponds to a pressure indicator (32) located on each outer side of the cross beams (16).
4. Lower mattress according to claim 3, characterized in that a measuring sensor (34) is connected to each cross beam (16) and via a control system (36) this sensor activates a control element (37) to set the counter-pressure on the spring plate (23) of the compression springs (21).
5. Lower mattress according to claim 3 or 4, characterized in that the control element (37) consists of a control motor (38) which worm gearing (40, 41), whereby the worm wheel (41) is connected to the adjustment screw (42).
6. Lower mattress according to claim 3 or 4, characterized in that the control element (37) consists of a control motor (38) and a pump (44), which sets the counter-pressure on the spring plate (23) of the compression spring (21) via an electro-pneumatic or an electro-hydraulic cylinder piston system (45,46,47), whereby the piston rod (47) of the cylinder piston system replaces the adjustment screw (22, 42) and supports the spring plate (23).
7. Lower mattress according to claim 6, characterized in that the piston rod (47) has a measuring plate (48) whose upper surface (26) corresponds to the measuring scale (8).
8. Lower mattress with cross beams (16) as support for an upper mattress, where each cross beam is attached to the support frame of the lower mattress by means of a flexible connection piece that can be adjusted with respect to its spring strength, whereby each connection piece has a pre-selectable compression spring (21), characterized in that one end of the compression spring (21) is arranged in a location borehole (11) of a lengthwise beam (2) of the support frame (1) and is held with the other end to the cross beam (16), in that laterally on the lengthwise beam (2) of the cross beam (16) there is one plate (49) each with a measuring scale (8), on which a measuring slide (10) can be slid back and forth and can be attached, in that the plates (49) have a slot (50), in which a measuring bar (60) can be slid back and forth, in that cross beams (51) are located below the cross beams (16) with a gap and in that between the upper and lower cross beams, which are enclosed by holders (53) to affix the compression springs (21), there are compressed air hoses (55) on each to adjust the pre-selected spring values.
9. Lower mattress according to claim 8, characterized in that the upper cross beam (16) is secured by a holding strap (58) against shifting in the lengthwise direction.
10. Lower mattress according to claim 8 or 9, characterized in that the holding strap (58) is affixed detachably to the cross frame (3) of the support frame (1).
11. Lower mattress according to claim 8-10, characterized in that on the lower cross beams (51) of the support frame (1) there is an air-cell pad (61) whose individual air cells (63) are connected to each other via webs (64) and buffer cells (65).
12. Lower mattress according to claim 8-11, characterized in that in each of the location boreholes (11) of the lengthwise beams (2) of the support frame (1) there is an inserted nut, in which there is a spring plate (78) with outer thread and a cone (79) for affixing the compression springs (21) and in that in order to adjust the compression springs (21), the spring plate (78) has a hexagon socket (80) which is accessible via a borehole (81) in the lengthwise beam (2) by means of an adjustment key (82) that has a measuring scale (83) and a hexagon peg (84).
13. Lower mattress according to claim 12, characterized in that in the boreholes (11, 81), instead of the adjustment key (82), have a threaded bolt (86) which is affixed torsion-free, in which a spring plate (89) with inner thread (90) and outer toothing (91) slides, whereby the toothing (91) is connected with the toothing of a drive bolt (95), which can be activated by means of a turning key (99) to adjust the pressure of the compression spring (21).
14. Lower mattress according to claim 8-13, characterized in that instead of the compression springs (21), there are bellows (66) whose valve seat (68) rests in a borehole (69) of the lengthwise beams (2) while being held in the upper cross beams (16).
15. Lower mattress with cross beams (16) as support for an upper mattress, where each cross beam is attached to the support frame of the lower mattress by means of a flexible connection piece that can be adjusted with respect to its spring strength, whereby each connection piece has a pre-selectable compression spring (21), characterized in that one end of the compression spring (21) is arranged in a location borehole (11) of a lengthwise beam (2) of the support frame (1) and is held with the other end to the cross beam (16), in that laterally on the lengthwise beam (2) of the cross beam (16) there is one plate (49) each with a measuring scale (8), on which a measuring slide (10) can be slid back and forth and can be attached, in that the plates (49) have a slot (50), in which a measuring bar (60) slides movably against a pressure element (128) and in the measurement position under pressure is guided by means of an angled piece (129) up to the stop against the lower side of the cross beam (16) and in that below the cross beams (16) between the lengthwise beams (2) of the support frame (1), there are lateral straps (119) which are enclosed by holders (53) for affixing the compression springs (21).
16. Lower mattress according to claim 15, characterized in that in a middle borehole (13) of the location borehole (11) of the lengthwise beams (2) of the support frame (1), a holding sleeve (102) is inserted, on whose bottom rests a threaded bolt (104) that is movable along its vertical axis, in which a spring plate (107) with threads (108) slides, whereby in the spring plate (107) there is an attachment hole (109) to grasp the angled-off end (110) of the compression spring (21) which is attached to a holding plate (111) on the cross beam (16).
17. Lower mattress according to claim 15, characterized in that in the location borehole (11) of the lengthwise beams (2) of the support frame (1) a spring plate (130) is attached in which there is an attachment hole (109) to grasp the angled-off end (110) of the compression spring (21), which is attached to a spring plate (136) which is located beneath the cross beam (16) and which slides on a threaded bolt (132) located in a borehole (116) of the cross beam (16).
EP83112615A 1982-12-18 1983-12-15 Bed bottom with cross beams and resilient connecting pieces Expired EP0111898B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83112615T ATE23665T1 (en) 1982-12-18 1983-12-15 UNDER MATTRESS WITH CROSSBARS AND ELASTIC CONNECTING PIECES.

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE3246983 1982-12-18
DE19823246983 DE3246983A1 (en) 1982-12-18 1982-12-18 Under-mattress with transverse beams and resilient connecting pieces
DE3329953 1983-08-19
DE19833329953 DE3329953A1 (en) 1983-08-19 1983-08-19 Mattress underlay with transverse supports and flexible connecting pieces
DE3339763 1983-11-03
DE19833339763 DE3339763A1 (en) 1983-11-03 1983-11-03 Mattress base with transverse supports for bearing an upper mattress

Publications (2)

Publication Number Publication Date
EP0111898A1 EP0111898A1 (en) 1984-06-27
EP0111898B1 true EP0111898B1 (en) 1986-11-20

Family

ID=27190581

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83112615A Expired EP0111898B1 (en) 1982-12-18 1983-12-15 Bed bottom with cross beams and resilient connecting pieces

Country Status (3)

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EP (1) EP0111898B1 (en)
AT (1) ATE23665T1 (en)
DE (1) DE3367725D1 (en)

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US7740321B2 (en) 2006-05-12 2010-06-22 Herman Miller, Inc. Suspended pixelated seating structure
US7931257B2 (en) 2003-10-23 2011-04-26 Herman Miller, Inc. Multilayer load bearing structure
US8691370B2 (en) 2008-07-25 2014-04-08 Herman Miller, Inc. Multi-layered support structure

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CH680337A5 (en) * 1987-05-08 1992-08-14 Roth & Cie Ag Mattress base for bed
FR2631798A1 (en) * 1988-05-25 1989-12-01 Chene Expansion Sarl Vieux DEVICE FOR TAKING IMPRESSIONS FROM A LATTICE SUMMER, METHOD AND USE OF THE METHOD
FR2631797B1 (en) * 1988-05-25 1991-11-22 Pierre Elmalek DEVICE FOR ADJUSTING THE RIGIDITY OF THE ARTICULATION OF A LATTICE BED, BED WITH ADJUSTABLE RIGIDITY
BE1005453A4 (en) * 1991-10-14 1993-07-27 Elsach Nv Pneumatic spring element for slatted bed frames
ES2157628T3 (en) 1998-07-16 2001-08-16 Bartholomaus Niedermuhlbichler PROCEDURE FOR ADJUSTMENT OF A BED OR SEAT ELEMENT.
FR2807928B1 (en) * 2000-04-25 2004-10-29 Joseph Zaccara BOX SPRING MATTRESS
SE531517C2 (en) * 2007-09-25 2009-05-05 Carpe Diem Beds Of Sweden Ab Device by bed
BE1019561A5 (en) * 2010-10-21 2012-08-07 Vanstraelen Karel MOTORIZED BED BOTTOM, LATRAL MODULE AND BED.
CN110179285A (en) * 2018-02-22 2019-08-30 佛山市南海德天家具有限公司 A kind of screw rod transversal-push type hardness regulating device and its seat, mattress
CN112903465B (en) * 2021-02-04 2022-06-14 太原理工大学 Device and method for testing double bearing capacity of single-row group columns in inclined goaf

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US7931257B2 (en) 2003-10-23 2011-04-26 Herman Miller, Inc. Multilayer load bearing structure
US7740321B2 (en) 2006-05-12 2010-06-22 Herman Miller, Inc. Suspended pixelated seating structure
US8186761B2 (en) 2006-05-12 2012-05-29 Herman Miller, Inc. Suspended pixelated seating structure
US8691370B2 (en) 2008-07-25 2014-04-08 Herman Miller, Inc. Multi-layered support structure

Also Published As

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DE3367725D1 (en) 1987-01-08
ATE23665T1 (en) 1986-12-15
EP0111898A1 (en) 1984-06-27

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