EP2471413A1 - Seat and/or lounger - Google Patents

Abstract

The furniture has a frame (12) in which a seat surface (14) accommodating a seat cushion and a backrest (18) accommodating a backrest cushion. The backrest is connected to a rear seat surface end (14a) and pivotable around a backrest pivot axle (16). The pivot axle is positioned above the seat surface. The backrest is connected with the pivot axle over a lever arm (22). The axle is arranged above a neutral zone (13a) of the seat cushion. A backrest drive (24) pivots the backrest around the pivot axle. The seat surface and the backrest are interconnected by a drive (28).

Description

The present invention relates to a seat and / or reclining furniture with a frame to which a seat cushion receiving a seat surface and a subsequent to a rear seat end, to a backrest pivot axis and a back cushion receiving backrest are held.

Such seating and / or reclining furniture are known in the art in a variety of configurations. For example, television chairs are available on the market, the backrest can be pivoted about a backrest pivot axis to the seat plane, so that a person sitting on the TV chair can be transferred to a lying position. Such television chairs usually also have a footrest surface, which is pivotable about a Fußauflageflächenschwenkachse arranged in the region of the front seat surface end. Furthermore, beds are known with pivoting backrest or with swivel headboard. The upper body of a person lying in such a bed can be erected accordingly only limited.

In the known furniture of the type mentioned above, the backrest pivot axis is normally arranged in the transition region between the seat surface and the backrest and thus below the seat cushion. A major disadvantage of such a Rückenlehnenschwenkachsenanordnung However, there is the fact that the back of a person sitting in the furniture when splaying the backrest, especially in the lower back area is greatly compressed, causing very strong pain in people with back problems.

A further disadvantage is that a person resting in the furniture is not relieved of getting up. To get up from a bed, for example, the person must first turn 90 ° around their longitudinal axis and then get off the side of the bed. People with severe back problems often require the assistance of a second person.

Based on this prior art, it is an object of the present invention to provide a seat and / or reclining furniture of the type mentioned, which allows an erection of the backrest, without upsetting the back of the person sitting in the furniture.

Another task is to make getting out of the furniture easy and painless.

To achieve the first object, the present invention provides a seat and / or reclining furniture of the type mentioned, which is characterized in that the backrest pivot axis is positioned above the seat, and that the backrest is connected via at least one lever arm to the backrest pivot axis. Thanks to this arrangement, the backrest pivot axis, the backrest and the seat when erecting the Backrest in the context of a pivoting movement about the backrest pivot axis moves away from each other, whereby a compression of the lower back area is reliably prevented. Accordingly, a painless erection of the backrest is guaranteed even for people with back problems.

In accordance with one embodiment of the present invention, the seat back pivot axis is positioned forwardly spaced from the rear seat bottom end.

Advantageously, the backrest pivot axis is arranged above a neutral zone of the seat cushion, in particular at the level or above the top of the seat cushion, as in this way also excessive compression of the seat cushion and the backrest cushion can be avoided if they are integrally formed. In the present case, the term "neutral zone" refers to that region of the seat cushion which, when the seat cushion is bent upwards or downwards, is neither compressed nor stretched. If a seat cushion, for example, bent upward, the top of the seat cushion is compressed and stretched the underside of the seat cushion. The area that normally extends in the middle between the top and bottom, on the other hand, is neither subjected to compression nor elongation, but remains "neutral".

Preferably, at least one drive is provided for pivoting the backrest about the backrest pivot axis, in particular a hydraulic cylinder or a lifting element threaded, which is held on the one hand and on the backrest on the other hand articulated on the frame. Accordingly, the backrest can be adjusted automatically.

According to one aspect of the present invention, the rear seat bottom end and the back end facing thereto have comb-like interlocking end portions which close the gap created when the seat back is erected between the seat bottom and the seat back.

In accordance with a further embodiment of the present invention, in order to achieve the second object, the seat surface is pivotable about a seat surface pivot axis positioned in the region of the front seat surface end. In the pivoted position of the seat of a person sitting in the furniture or lying person getting up very much, without upsetting the person's back or twisting by the exit from the furniture is made possible to the front. Support from a second person is usually not required.

Preferably, the seat surface and the backrest are connected to each other via at least one drive, via which a predetermined distance between the seat and the backrest is variable, in particular a hydraulic cylinder or a threaded lifting element, the / on the seat on the one hand and the backrest on the other hand articulated is held. The connection of the seat and the backrest on such a drive is to the effect of advantage that both a pivoting of the Backrest as well as a pivoting of the seat over the backrest drive can be done. If the actuator connecting the seat surface and the backrest is switched to its idle position, an actuation of the backrest drive merely effects an adjustment of the backrest position. If, on the other hand, a distance between the seat surface and the backrest is fixed via the drive connecting the seat surface and the backrest, the result is that the position of the seat surface is automatically changed when the backrest is adjusted. Alternatively, of course, a separate seat surface drive can be provided.

According to one embodiment of the present invention, at least one grab handle is arranged laterally on the frame, which serves in particular as a stand-up aid in order to give the person the right hold when standing up out of the furniture.

Preferably, the handle protrudes over the front seat surface end, so that the handle for a person is also easy to reach while standing up without the arms having to reach backwards. Also, a person is facilitated thanks to the supernatant of the handle entry into the furniture, especially the entry from a rollator or a wheelchair.

According to one embodiment, a footrest surface which adjoins the front seat surface end and receives a foot pad is provided.

The footrest surface is preferably held pivotable about a arranged on a rear Fußauflageflächenende Fußauflageflächenschwenkachse so that it can be folded out and folded as needed and is adjustable in height.

Advantageously, at least one Fußauflageflächenantrieb is provided for pivoting the Fußauflagefläche to the Fußauflageflächenschwenkachse, in particular a double-sided articulated hydraulic cylinder or a lifting element with thread. Accordingly, the pivoting of the footrest surface can be done automatically.

According to one embodiment of the present invention, the footrest surface is arranged on a stowable below the frame Fußauflageflächenträger, which - in particular guided on the frame - is moved back and forth. Accordingly, the footrest surface, if it is not needed, be stowed easily and space-saving under the frame. In particular, during the exit of a person from the furniture to the front of the exit can be cleared by stowing the Fußauflegefläche under the frame, so that the person can stand up unhindered.

Advantageously, at least one Fußauflageflächenträgerantrieb for forward and backward movement of Fußauflageflächenträgers is provided, in particular a hydraulic cylinder or a threaded lifting element, the / on the frame on the one hand and on the Fußauflageflächenträger other hand is attached. Accordingly, the Fußauflageflächenträger can as needed retract and extend.

According to one embodiment of the present invention, at least one drive for raising and lowering the footrest surface is provided on the Fußauflageflächenträger, in particular a hydraulic cylinder or a threaded lifting element. With such a drive, the footrest surface can be lowered to one, before it is stowed below the frame. On the other hand, the footrest surface can be positioned with such a drive but also at a height above the seat. This is for example advantageous if the legs are to be stored high for health reasons.

Advantageously, in the front region of the seat surface, a flap arranged substantially in the seat surface plane is provided which is pivotable about a flap pivot axis such that a front flap end can be moved up and down. With such a flap, when the footrest surface is positioned above the seating surface, a transition between the level of the seating surface and the level of the footrest surface can be created.

According to one embodiment of the present invention, a separate flap drive is provided for pivoting the flap. Alternatively, a pivoting of the flap but also via a drive for raising and lowering the footrest surface done. In the latter case, for example, an actuator can be connected to the drive for raising and lowering the footrest surface, the when lifting the footrest surface presses under the flap, whereby it is automatically pivoted about the flap pivot axis.

Advantageously, a manually operated control for actuating at least one drive is provided.

Figur 1

eine schematische Seitenansicht eines Sitzmöbels gemäß einer ersten Ausführungsform der vorliegenden Erfindung, das sich in einer ersten Stellung befindet;

Figur 2

eine schematische Seitenansicht des in Figur 1 gezeigten Möbels, das sich in einer zweiten Stellung befindet;

Figur 3

eine schematische Seitenansicht des in Figur 1 gezeigten Möbels, das sich in einer dritten Stellung befindet;

Figur 4

eine schematische Seitenansicht des in Figur 1 gezeigten Möbels, das sich in einer vierten Stellung befindet;

Figur 5

eine schematische Seitenansicht eines Sitz-und Liegemöbels gemäß einer zweiten Ausfüh- rungsform der vorliegenden Erfindung, das sich in einer ersten Stellung befindet;

Figur 6

eine schematische Seitenansicht des in Figur 5 gezeigten Möbels, das sich in einer zweiten Stellung befindet,

Figur 7

eine schematische Seitenansicht des in Figur 5 gezeigten Möbels, das sich in einer dritten Stellung befindet;

Figur 8

eine schematische Seitenansicht eines Sitz-und Liegemöbels gemäß einer dritten Ausführungsform der vorliegenden Erfindung, das sich in einer ersten Stellung befindet;

Figur 9

eine schematische Seitenansicht des in Figur 8 gezeigten Möbels, das sich in einer zweiten Stellung befindet; und

Figur 10

eine schematische Seitenansicht des in Figur 8 gezeigten Möbels, das sich in einer dritten Stellung befindet.

Further features and advantages will become apparent from the following description of embodiments of the invention sitting and / or reclining furniture with reference to the accompanying drawings. That's it

FIG. 1

a schematic side view of a chair according to a first embodiment of the present invention, which is in a first position;

FIG. 2

a schematic side view of the in FIG. 1 shown furniture, which is in a second position;

FIG. 3

a schematic side view of the in FIG. 1 shown furniture, which is in a third position;

FIG. 4

a schematic side view of the in FIG. 1 shown furniture, which is in a fourth position;

FIG. 5

1 is a schematic side view of a sitting and lying furniture according to a second embodiment. tion form of the present invention, which is in a first position;

FIG. 6

a schematic side view of the in FIG. 5 shown furniture, which is in a second position,

FIG. 7

a schematic side view of the in FIG. 5 shown furniture, which is in a third position;

FIG. 8

a schematic side view of a sitting and lying furniture according to a third embodiment of the present invention, which is located in a first position;

FIG. 9

a schematic side view of the in FIG. 8 shown furniture, which is in a second position; and

FIG. 10

a schematic side view of the in FIG. 8 shown furniture, which is in a third position.

The same reference numbers refer to the same or similar components below.

The FIGS. 1 to 4 show a chair 10 according to a first embodiment of the present invention. The seating 10 includes a frame 12 to which a in FIG. 1 Dashed seat cushion 13 receiving Seat 14 and a subsequent to a rear seat bottom end 14a, about a backrest pivot axis 16 pivotally and also shown in dashed lines back pad 13 receiving the backrest 18 are held, wherein the back pad 13 is integrally formed with the seat cushion 13. The backrest pivot axis 16 is formed by two hinges. These are arranged on two U-shaped, arranged opposite each other, laterally attached to the seat surface 14 and upwardly held by this holding elements 20. Accordingly, the backrest pivot axis 16 is positioned above the seat surface 14 and spaced forwardly from the rear seat bottom end 14a. More specifically, the backrest pivot axis 16 is disposed above the neutral zone 13a of the seat cushion 13, preferably even at the level of the top 13b of the seat cushion 13, although not shown herein. At the hinges defining the backrest pivot axis 16, a respective free end of an L-shaped lever arm 22 is held, the second free end of which is attached laterally to the backrest 18. In this way, the backrest 18 can be pivoted about the backrest pivot axis 16. Below the seat 14 and the backrest 18, a backrest drive 24 is positioned, which serves for pivoting the backrest 18 about the backrest pivot axis 16. The backrest drive 24 is in the present case formed by two hydraulic cylinders, which are held on the other side opposite to the frame 12 on the one hand and on the backrest 18 on the other hand hinged. The attachment position the hydraulic cylinder on the frame 12 is variable in the direction of arrow A.

The seat surface 14 is also held pivotably on the frame 12 about a seat surface pivot axis 26 positioned in the region of the front seat surface end 14b. The seat 14 and the backrest 18 are further connected to each other via a drive 28, via which a predetermined distance between the seat 14 and the backrest 18 is variable. The drive 28 is presently formed by two laterally below the seat 14 and the backrest 18 arranged hydraulic cylinder, which are held on the seat 14 on the one hand and on the backrest 18 on the other hand articulated.

The side of the frame 12, a handle 30 is disposed in the front region, which protrudes beyond the front seat surface end 14b.

Now, starting from the in FIG. 1 shown position of the backrest actuator 24 is actuated, so the piston rods of the hydraulic cylinder extend, so that the backrest 18 performs a pivotal movement about the backrest pivot axis 16 and is raised accordingly. If the two hydraulic cylinders of the seat 14 and the backrest 18 connecting drive 28 is switched to freewheel at this time, then, as it is in FIG. 2 is shown, only the backrest 18 moves, while the seat surface 14 remains lying on the frame 12. Due to the fact that the backrest pivot axis 16 is arranged above the seat surface 14 and spaced forwardly from the rear seat bottom end 14a, the seat bottom 14 and seat back 18 are progressively spaced apart about their seat back pivot axis 16 during pivotal movement of the seat back 18, thereby creating a gap 32. Thanks to this gap 32, the back of a person resting in the chair 10 person during erection of the backrest 18 is not compressed, which is why even people with back problems during erection of the backrest 18 suffer no pain. To cover the gap 32, the rear seat bottom end 14a and the back end facing thereto have comb-like interlocking end portions, although not shown herein.

Are the hydraulic cylinders of the seat 14 and the backrest 18 interconnecting drive 28 now starting from the in FIG. 2 shown position of the chair 10 is locked, and the piston rod of the hydraulic cylinder of the backrest drive 24 is further extended, the seat 14 is the further pivoting of the backrest 18 about the backrest pivot axis 16 moves upward about the Sitzflächenschwenkachse 26, as in FIG. 3 is shown. Upon further extension of the piston rods of the hydraulic cylinder of the backrest drive 24, the seat 14 and the backrest 18 can now be raised so far that a simple disembarkation of the resting in the chair 10 person is possible, as in FIG. 4 is shown. The person can easily be supported on the lever arms 22 during the disembarkation, since these over the front Protruding seat end 14b. The backrest pivot axis 16 is displaceable in the direction of the arrow B. For this purpose, the hinges forming the backrest pivot axis 16 can be fastened along the holding elements 20 at different positions. The advantage is that the depth of the seat 14 is person-specific adjustable. The distance by which the hinges are displaced is counterbalanced by the comb-like interengaging end portions of the rear seat surface end 14a and the seat back end facing thereto.

The FIGS. 5 to 7 show a sitting and lying furniture 40 according to a second embodiment of the present invention. The furniture 40 has the same basic construction as that previously described with reference to FIGS FIGS. 1 to 4 described seating 10, which is why the individual components are not described again here. In addition, the furniture 40 includes a subsequent to the front seat bottom end 14 b and a in FIG. 5 The footrest surface 42 is pivotably held about a Fußauflageflächenschwenkachse 44 arranged on the rear Fußauflageflächenende 42a. The Fußauflageflächenschwenkachse 44 is connected to a drive 46 for raising and lowering the Fußauflagefläche 42, which is presently formed by two vertically extending hydraulic cylinder. The hydraulic cylinders are mounted on a footrest support 48, which is guided back and forth on the frame 12, so that it can be stowed under the frame 12 as needed. To move back and forth of the Fußauflageflächenträgers 48 is a Fußauflageflächenträgerantrieb 50 is provided, which is presently formed by two hydraulic cylinders, which are respectively attached to the rear part of the frame 12 on the one hand and on the Fußauflageflächenträger 48 on the other. For pivoting the footrest surface 42 about Fußauflageflächenschwenkachse 44 a Fußauflageflächenantrieb 52 is further provided, which is formed by two laterally arranged on the Fußauflageflächenträger 48 hydraulic cylinder, which are held on the one hand on Fußauflageflächenträger 48 and on the other hand at the bottom of the front Fußauflageflächenendes 42b.

In the front region of the seat surface 14 there is further formed a flap 54 arranged in the seat surface plane, which is pivotable about a flap pivot axis 45 arranged at the rear flap end 54a such that the front flap end 54b is movable up and down. For pivoting the flap 54 is attached to the two piston rods of the hydraulic cylinder of the drive 46 each have an angle-shaped actuator 58, the free end facing upwards and is disposed below the front flap end 54b.

FIG. 5 shows the position of the sitting and lying furniture 40 in which the footrest support 48 is stowed under the frame 12. If the footrest surface 42 is required, the footrest surface carrier drive 50 is actuated so that the footrest carrier 48 is extended, as shown in FIG FIG. 6 is pictured. In a further step, the drive 46 is actuated, whereby the footrest surface 42 is raised to the level of the seat surface 14. Further, the piston rods of the cylinder of Fußauflageflächenantriebs 52 are extended, so that the Fußauflagefläche 42 is pivoted about the Fußauflageflächenschwenkachse 44 until the Fußauflagefläche 42 is aligned with the seat surface 14.

If the legs of the person resting on the furniture 40 are to be stored high for health reasons, for example, the piston rods of the hydraulic cylinders of the drive 46 are further extended until the footrest surface 42 has reached the desired level above the seat surface 14. During this further extension movement of the piston rods, the actuating element 58 comes into contact with the underside of the flap 54, as a result of which the flap 54 is automatically pivoted about the flap pivot axis 56. Accordingly, the flap forms, as in FIG. 7 is shown, a transition between the seat surface 14 and the footrest surface 42nd

To increase the stability of the extended footrest surface 42 may be positioned on the Fußauflageflächenträger 48 two more hydraulic cylinders which are hingedly attached to the Fußauflageflächenträger 48 on the one hand and at the bottom of the rear Fußauflageflächenende 42a on the other hand and form a crossed arrangement with the hydraulic cylinders of Fußauflageflächenantriebs 52, as it in FIG. 7 indicated by the dotted line.

The FIGS. 8 to 10 show a seating and reclining furniture 60 according to a third embodiment of the present invention. The furniture 60 has the same basic construction as previously described with reference to FIGS FIGS. 5 to 7 described seating 40, which is why identical or similar components are identified by the same reference numerals and will not be described again here. Unlike the furniture 40, in the furniture 60, the backrest pivot shaft 16 is provided at a support member 20 extending upwardly substantially perpendicularly from the rear seat surface end 14a so that the seat back pivot shaft 16 is positioned just above the rear seat surface end 14a. Accordingly, the seat back pivot axis 16 is not positioned forwardly spaced from the rear seat bottom end 14a. Another difference between the furniture 60 and the furniture 40 is that the foot pad 41 is integrally formed with the seat cushion 13 and the back pad 13, wherein the foot pad 41 has a smaller thickness so that it can be flexibly bent. In addition, a fold 53 projecting upwardly from the footrest end 42 b, which may be made of sheet metal, plastic or the like, surrounds the free end of the foot pad 41 so that it pivots about the footrest surface pivot axis 44 during and / or during pivotal movement of the footrest surface 42 a movement of the Fußauflageflächenträgers 48 is always securely held.

Incidentally, the construction of the sitting and lying furniture 60 corresponds to that of the in FIGS. 5 to 7 illustrated furniture 40.

The individual drives 24, 28, 46, 50 and 52 in the FIGS. 1 to 7 shown furniture 10, and 40 and 60. can be operated by a resting on the furniture 10, 40 person via a controller. The controller may be configured, for example, as a remote control.

Claims (15)

Sitting and / or reclining furniture (10; 40; 60) having a frame (12) on which a seat cushion receiving a seat cushion (14) and a subsequent to a rear seat end (14a), about a backrest pivot axis (16) and a back cushion receiving backrest (18) are held, characterized in that the Rückenlehnenschwenkachse (16) above the seat surface (14) is positioned, and that the backrest (18) via at least one lever arm (22) with the Rückenlehnenschwenkachse (16) is connected , A reclining and reclining furniture (10; 40) according to claim 1, characterized in that the backrest pivot axis (16) is positioned forwardly spaced from the rear seat bottom end. Furniture (10; 40; 60) according to claim 1 or 2, characterized in that the backrest pivot axis (16) above a neutral zone (13a) of the seat cushion (13) is arranged, in particular at the level or above the top (13b) of the seat cushion (13). Furniture (10; 40; 60) according to one of the preceding claims, characterized in that at least one backrest drive (24) is provided for pivoting the backrest (18) about the backrest pivot axis (16), in particular a hydraulic cylinder or a lifting element with thread, which is on the other hand articulated on the frame (12) on the one hand and on the backrest (18). Furniture (10; 40; 60) according to any one of the preceding claims, characterized in that the rear seat bottom end (14a) and the back end facing thereto have comb-like interlocking end portions. Furniture (10; 40; 60) according to any one of the preceding claims, characterized in that the seat surface (14) about a in the region of the front seat surface end (14b) positioned Sitzflächenschwenkachse (26) is pivotable. Furniture (10; 40; 60) according to claim 5, characterized in that the seat surface (14) and the backrest (18) are interconnected via at least one drive (28) via which a predetermined distance between the seat surface (14) and the backrest (18) is variable, in particular a hydraulic cylinder or a threaded lifting element, which on the one hand and on the backrest (18) on the other hand is articulated on the seat surface (14). Furniture (10; 40; 60) according to any one of the preceding claims, characterized in that on the side of the frame (12) at least one handle (30) is arranged which in particular projects beyond the front seat surface end (14b). Furniture (40; 60) according to one of the preceding claims, characterized in that a foot support surface (42) adjoining the front seat surface end (14b) and accommodating a foot pad is provided. Furniture (40; 60) according to claim 9, characterized in that the footrest surface (42) is pivotably held about a Fußauflageflächenschwenkachse (44) arranged on a rear Fußauflageflächenende (42 a), wherein preferably at least one Fußauflageflächenantrieb (52) for pivoting the Fußauflagefläche (52). 42) is provided around the Fußauflageflächenschwenkachse (44), in particular a double-sided articulated hydraulic cylinder or a double-sided articulated mounted lifting element with thread. Furniture (40; 60) according to any one of claims 9 or 10, characterized in that the footrest surface (42) on a below the frame (12) stowable Fußauflageflächenträger (48) is arranged, in particular on the frame (12) guided forward and is moved back. Furniture (40; 60) according to claim 11, characterized in that at least one Fußauflageflächenträgerantrieb (50) for forward and backward movement of Fußauflageflächenträgers (48) is provided, in particular a hydraulic cylinder or a threaded lifting element, the / on the frame (12 On the one hand and on the Fußauflageflächenträger (48) on the other hand is attached. Furniture (40; 60) according to claim 11 or 12, characterized in that at least one drive (46) for raising and lowering the footrest surface (42) on the Fußauflageflächenträger (48) is provided, in particular a hydraulic cylinder or a threaded lifting element. Furniture (40; 60) according to any one of the preceding claims, characterized in that in the front region of the seat surface (14) a flap (54) arranged essentially in the seat surface plane is provided, which is pivotable about a flap pivot axis (56) such that a front flap end (54b) is movable up and down, wherein preferably for pivoting the flap (54) a separate flap drive is provided, or preferably pivoting the flap (54) via a drive (46) for lifting and lowering a footrest surface (42). Furniture (40; 60) according to one of claims 3 to 14, characterized in that a manually operated control is provided for actuating at least one drive.

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