EP0307565A1 - Work bench with an adjustable top - Google Patents

Work bench with an adjustable top Download PDF

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Publication number
EP0307565A1
EP0307565A1 EP88110988A EP88110988A EP0307565A1 EP 0307565 A1 EP0307565 A1 EP 0307565A1 EP 88110988 A EP88110988 A EP 88110988A EP 88110988 A EP88110988 A EP 88110988A EP 0307565 A1 EP0307565 A1 EP 0307565A1
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EP
European Patent Office
Prior art keywords
tubes
table according
support
longitudinal
work table
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.)
Withdrawn
Application number
EP88110988A
Other languages
German (de)
French (fr)
Inventor
Paul Mazura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schroff GmbH
Original Assignee
Schroff GmbH
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Filing date
Publication date
Application filed by Schroff GmbH filed Critical Schroff GmbH
Publication of EP0307565A1 publication Critical patent/EP0307565A1/en
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B17/00—Writing-tables
    • A47B17/02—Writing-tables with vertically-adjustable parts
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B9/00—Tables with tops of variable height
    • A47B9/04—Tables with tops of variable height with vertical spindle
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B9/00—Tables with tops of variable height
    • A47B9/04—Tables with tops of variable height with vertical spindle
    • A47B2009/046—Tables with tops of variable height with vertical spindle with gearbox
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B2200/00—General construction of tables or desks
    • A47B2200/0011—Underframes
    • A47B2200/0013—Desks with central bearing beams
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B2200/00—General construction of tables or desks
    • A47B2200/0011—Underframes
    • A47B2200/002—Legs
    • A47B2200/0026—Desks with C-shaped leg
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B2200/00—General construction of tables or desks
    • A47B2200/0035—Tables or desks with features relating to adjustability or folding
    • A47B2200/004—Top adjustment
    • A47B2200/0042—Height and inclination adjustable desktop, either separately or simultaneously
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B2200/00—General construction of tables or desks
    • A47B2200/0035—Tables or desks with features relating to adjustability or folding
    • A47B2200/004—Top adjustment
    • A47B2200/0043—Inclination adjustable work top

Definitions

  • the innovation concerns a work table with an adjustable table top on two support arms on a frame with two vertical, legged tubes that are connected to each other by a crossbar.
  • the proposed work table is used in particular in offices which are equipped with data processing devices, in particular with keyboards and screens.
  • work tables are often equipped with adjustable table tops so that they can be adapted to the height of the operator, taking into account the appropriate arm position and advantageous viewing height.
  • the task of the innovation consists in the design of an adjustment mechanism for the table top of a work table, which is housed completely inside the frame supporting the table top and thus removed from the eye.
  • a work table with an adjustable table top on two support arms on a frame with two vertical, legged tubes, which are connected by a crossbar is assumed and the object is achieved in that the tubes have longitudinal slots that a vertically displaceable and adjustable support element is provided in each tube, and that the support arms are fastened to the support elements in a manner penetrating the longitudinal slots.
  • the proposed support elements accommodated in the tubes a height adjustment in steps or continuously of the table top is possible, which is practically invisible from the outside.
  • the tubes and the support elements expediently have a square cross section.
  • the support elements can be fixed to the tubes with at least one set screw passing through the tubes.
  • threaded spindles are provided in the tubes, on which the support elements provided with an internal thread can be displaced.
  • the threaded spindles are advantageously rotatably mounted in pedestals, which sit in the tubes near the feet.
  • At least one gear acts on the connecting shaft, with the aid of which it can be rotated either by hand or by an electric motor.
  • a longitudinal toothing can alternatively be attached to one of the two threaded spindles, in which a worm wheel engages, which is fastened on a drive shaft mounted in the foot.
  • the support arms are pivotally attached to the support elements.
  • Each support element expediently carries a longitudinal web which engages in a groove of the support arm and which has two eyes has, in one of which the support arm is articulated and on the other of which a fork is pivotally attached, on which a threaded bushing is formed, into which an actuating shaft mounted in the support arm engages with a terminal thread.
  • the table top is tilted by turning the actuating shaft.
  • an aperture is expediently provided on the support element, which is behind the longitudinal slots.
  • the work table shown in the drawings consists essentially of a table top 1, two support arms 2, two tubes 3, two feet 4 and a crossbar 5.
  • the two tubes 3, the two feet 4, and the crossbar 5 are connected to one another and form together a rack.
  • the rectangular table top 1 (FIG. 1), which is made of coated wood, for example, is adjustable according to the two arrows a and b with respect to its height (in steps or continuously) and its inclination (continuously) within certain limits.
  • the two parallel, made of wood or metal support arms 2 are attached.
  • the two metal feet 4 (Figure 1) are attached at right angles to the lower ends of the tubes 3 and they are parallel to each other.
  • the two tubes 3 are made of seamless drawn steel and they have a square cross section.
  • the feet 4 are welded or screwed to the pipes.
  • the two tubes 3 have longitudinal slots 6 pointing in the region of their upper ends in the direction of the support arms 2 (see FIG. 2), and a support element 7 made of metal or plastic fits appropriately in each tube 3 approximately at the level of the longitudinal slots 6.
  • threaded spindles 8 are provided centrally in the tubes 3, which are rotatably mounted in bearing blocks 9, which are seated in the tubes 3 and near the feet 4.
  • the supporting elements 2 provided with corresponding internal threads 10, which can be displaced and locked with the aid of these threaded spindles 8.
  • the support elements 2 ( Figure 4) have a prismatic shape with a square cross section.
  • Each support element 2 carries an essentially prismatic longitudinal web 11 which is screwed to the support element 2 with fastening screws 12.
  • the support arms 2 are pivotally attached to the support elements 7 through the longitudinal slots 6 via these longitudinal webs 11, in this case the longitudinal webs 11 engage in a groove 13 in the support arms 2.
  • Each longitudinal web 11 carries two eyes 14 and 15.
  • the respective support arm 2 is articulated on the lower eye 15 with a bolt 16 (see FIG. 2), and a fork 17 with a socket pin 18 is pivotally suspended on the upper eye 14.
  • a threaded bushing 19 is formed on this fork 17, into which an actuating threshold 20, which is rotatably mounted in the support arm 2, engages with a terminal thread 21.
  • the table top 1 is inclined. It would also be conceivable that the table top 1 is articulated at the free end of the support arms 2.
  • the easiest way to adjust the height of the table top 1 in stages is to provide holes in the tubes 3 at the side through which a set screw 23 is screwed into one of several threaded holes 24 which are in the support element 7 are arranged at different heights.
  • a stepless height adjustment of the table top 1 is done by rotating the two threaded spindles 8 together.
  • each threaded spindle 8 carries a bevel gear 25 on the head side and above the supporting element 7.
  • a connecting rotary shaft 26 is mounted in the crossmember 5, at the two ends of which end bevel gears 27 are seated that are engaged with the bevel gears 25.
  • Small gears 28 are provided on the connecting rotary shaft 26 (FIG. 1), which essentially consist of a bevel gear seated on the connecting rotary shaft 26 and a vertically arranged shaft stub with counter bevel gear, which sit in a housing.
  • a hand crank 29 can be inserted into an internal hexagon of the shaft stump, with the aid of which the connecting rotary shaft 26 and thus the two threaded spindles 8 can be set in rotation via the relevant gear 28.
  • the rotation of the threaded spindles 8 causes the support elements 7 and thus the table top 1 to be raised or lowered continuously.
  • the transmission 28 can also be provided with an electric motor drive.
  • An alternative possibility of actuating the threaded spindles 8 is that one of them has a longitudinal toothing 30 on its circumference (indicated in FIG. 2).
  • the longitudinal toothing 30, which corresponds to the length of the longitudinal slot, could also be provided in the area of the longitudinal slot 6 and the drive shaft 32 of the worm wheel could be mounted in the support arm 2.
  • the worm wheel 31 itself would then find its place inside a hollow support element 7 (not shown).

Abstract

The workbench for offices is used for supporting data processing equipment. A frame, which consists of two vertical tubes 3 which are provided with feet 4 and are connected to each other by a crossbeam 5, bears a height-adjustable top 1. The two tubes 3 have longitudinal slots 6 and a bearing element 7, which is vertically displaceable with the aid of a threaded spindle 8, is arranged in each tube 3. Provided on the bearing elements 7 are horizontal bearing arms 2 which penetrate the longitudinal slots 6, and the top 1 rests on these bearing arms 2. The threaded spindles 8 bear bevel wheels 25 at the top. Mounted in the crossbeam 5 is a rotary connection shaft 26, on whose two ends counter-bevel wheels 27 are seated which engage in the bevel wheels 25 of the threaded spindles 8. By means of a gear 28, the rotary connection shaft 26 can be rotated with the aid of a hand- operated crank 29, by which means the two threaded spindles 8 are set in rotary motion and the two bearing elements 7 are displaced upwards or downwards in the tubes 3 depending on the direction of rotation. <IMAGE>

Description

Die Neuerung betrifft einen Arbeitstisch mit verstell­barer Tischplatte an zwei Tragarmen auf einem Gestell mit zwei vertikalen, mit Füßen versehenen Rohren, die durch eine Traverse miteinander verbunden sind.The innovation concerns a work table with an adjustable table top on two support arms on a frame with two vertical, legged tubes that are connected to each other by a crossbar.

Der vorgeschlagene Arbeitstisch findet insbesondere An­wendung in Büros, welche mit Datenverarbeitungsgeräten, also vor allem mit Tastaturen und Bildschirmen, ausge­stattet sind.The proposed work table is used in particular in offices which are equipped with data processing devices, in particular with keyboards and screens.

Aus ergonometrischen Gründen sind Arbeitstische häufig mit verstellbaren Tischplatten ausgestattet, damit diese unter Berücksichtigung zweckmäßiger Armhaltung und vor­teilhafter Betrachtungshöhe der Körpergröße des Bedienen­den angepaßt werden können.For ergonomic reasons, work tables are often equipped with adjustable table tops so that they can be adapted to the height of the operator, taking into account the appropriate arm position and advantageous viewing height.

Arbeitstische mit höhen- und neigungsverstellbaren Tisch­platten sind in verschiedenen Ausführungsformen bereits bekannt. Zur Verstellung werden technisch und material­mäßig oft recht aufwendige Konstruktionen mit teleskop­artig ineinander verschiebbaren Standrohren benutzt, die aber den Erfordernissen des modernen Design von Büroar­beitsplatz-Systemen nicht angepaßt werden können.Work tables with height and tilt adjustable table tops are already known in various embodiments. For the adjustment, technically and material-wise often very complex constructions with telescoping telescopic standpipes are used, which however cannot be adapted to the requirements of the modern design of office work place systems.

Die Aufgabe der Neuerung besteht in der Konzeption eines Verstellmechanismus für die Tischplatte eines Arbeits­tisches, welcher vollständig im Inneren des die Tisch­platte tragenden Gestelles und damit dem Auge entzogen untergebracht ist.The task of the innovation consists in the design of an adjustment mechanism for the table top of a work table, which is housed completely inside the frame supporting the table top and thus removed from the eye.

Zur Lösung der gestellten Aufgabe wird von einem Arbeits­tisch mit verstellbarer Tischplatte an zwei Tragarmen auf einem Gestell mit zwei vertikalen, mit Füßen versehe­nen Rohren, die durch eine Traverse miteinander verbunden sind, ausgegangen und gelöst wird die Aufgabe dadurch, daß die Rohre Längsschlitze aufweisen, daß in jedem Rohr ein vertikal verschiebbares und verstellbares Tragelement vorgesehen ist, und daß die Tragarme die Längsschlitze durchsetzend an den Tragelementen befestigt sind. Mit Hilfe der vorgeschlagenen, in den Rohren untergebrachten Tragelementen ist eine Höhenverstellung in Stufen oder stufenlos der Tischplatte möglich, die von außen prak­tisch unsichtbar ist.To solve the problem, a work table with an adjustable table top on two support arms on a frame with two vertical, legged tubes, which are connected by a crossbar, is assumed and the object is achieved in that the tubes have longitudinal slots that a vertically displaceable and adjustable support element is provided in each tube, and that the support arms are fastened to the support elements in a manner penetrating the longitudinal slots. With the help of the proposed support elements accommodated in the tubes, a height adjustment in steps or continuously of the table top is possible, which is practically invisible from the outside.

Zweckmäßig weisen die Rohre und die Tragelemente quadra­tischen Querschnitt auf.The tubes and the support elements expediently have a square cross section.

An den Tragelementen sind zweckmäßig Längsstege ange­ordnet, welche in die Längsschlitze eingreifen. Diese Maßnahme gestattet auf einfache Weise die Befestigung der Tragarme an den Tragelementen.Longitudinal webs which engage in the longitudinal slots are expediently arranged on the supporting elements. This measure allows attachment in a simple manner the support arms on the support elements.

Zur Höhenverstellung der Tischplatte können die Trag­elemente mit wenigstens einer die Rohre durchsetzenden Stellschraube an den Rohren fixiert sein.To adjust the height of the table top, the support elements can be fixed to the tubes with at least one set screw passing through the tubes.

In einer anderen Ausführungsform der Neuerung sind in den Rohren Gewindespindeln vorgesehen, auf welchen die mit Innengewinde versehenen Tragelemente verschiebbar sind.In another embodiment of the innovation, threaded spindles are provided in the tubes, on which the support elements provided with an internal thread can be displaced.

Vorteilhaft sind die Gewindespindeln in Lagerböcken dreh­bar gelagert, die in den Rohren nahe den Füßen sitzen.The threaded spindles are advantageously rotatably mounted in pedestals, which sit in the tubes near the feet.

Zur gemeinsamen Betätigung der Gewindespindeln tragen diese kopfseitig Kegelräder, und in der Traverse ist eine Verbindungs-Drehwelle gelagert, an deren Enden mit den Kegelrädern kämmende Gegenkegelräder sitzen.For joint actuation of the threaded spindles, these have bevel gears on the head side, and a connecting rotary shaft is mounted in the crossmember, at the ends of which are seated mating bevel gears meshing with the bevel gears.

Vorteilhaft greift an der Verbindungswelle wenigstens ein Getriebe an, mit dessen Hilfe diese entweder von Hand oder elektromotorisch in Drehung versetzt werden kann. Zum Zwecke der Höhenverstellung der Tischplatte kann alternativ auch auf einer der beiden Gewinde­spindeln eine Längszahnung angebracht sein, in welche ein Schneckenrad eingreift, das auf einer im Fuß ge­lagerten Antriebswelle befestigt ist.Advantageously, at least one gear acts on the connecting shaft, with the aid of which it can be rotated either by hand or by an electric motor. For the purpose of height adjustment of the table top, a longitudinal toothing can alternatively be attached to one of the two threaded spindles, in which a worm wheel engages, which is fastened on a drive shaft mounted in the foot.

Zum Zwecke der Neigung der Tischplatte sind die Trag­arme an den Tragelementen schwenkbar befestigt.For the purpose of inclining the table top, the support arms are pivotally attached to the support elements.

Zweckmäßig trägt jedes Tragelement einen in eine Nut des Tragarmes eingreifenden Längssteg, der zwei Augen aufweist, in dessen einen der Tragarm angelenkt ist und an dessen anderen eine Gabel schwenkbar befestigt ist, an der eine Gewindebuchse angeformt ist, in wel­che eine im Tragarm gelagerte Betätigungswelle mit einem endständigen Gewinde eingreift. Durch Drehen der Betätigungswelle wird das Neigen der Tischplatte bewirkt.Each support element expediently carries a longitudinal web which engages in a groove of the support arm and which has two eyes has, in one of which the support arm is articulated and on the other of which a fork is pivotally attached, on which a threaded bushing is formed, into which an actuating shaft mounted in the support arm engages with a terminal thread. The table top is tilted by turning the actuating shaft.

Um die Längsschlitze in den Rohren zu verschließen, ist am Tragelement zweckmäßig eine Blende vorgesehen, die hinter den Längsschlitzen steht.In order to close the longitudinal slots in the tubes, an aperture is expediently provided on the support element, which is behind the longitudinal slots.

Die Neuerung wird nachstehend an einem Ausführungsbei­spiel anhand der beigefügten drei Zeichnungen näher be­schrieben. In den Zeichnungen zeigen:

  • Fig. 1 einen Arbeitstisch mit einer höhen- und neigungsverstellbaren Tischplatte, in einer Teilansicht, perspektivisch dar­gestellt;
  • Fig. 2 einen Vertikalschnitt durch ein Rohr eines Arbeitstisches nach Figur 1, in etwas vergrößertem Maßstab;
  • Fig. 3 einen Horizontalschnitt durch das Rohr nach Figur 2;
  • Fig. 4 ein Tragelement in perspektivischer Wiedergabe.
The innovation is described below using an exemplary embodiment with reference to the accompanying three drawings. The drawings show:
  • Figure 1 is a perspective view of a work table with a height and tilt adjustable table top, in a partial view.
  • 2 shows a vertical section through a tube of a work table according to FIG. 1, on a somewhat enlarged scale;
  • 3 shows a horizontal section through the tube according to FIG. 2;
  • Fig. 4 shows a support element in a perspective representation.

Der in den Zeichnungen dargestellte Arbeitstisch besteht im wesentlichen aus einer Tischplatte 1, zwei Tragar­men 2, zwei Rohren 3, zwei Füßen 4 sowie einer Traver­se 5. Die beiden Rohre 3, die zwei Füße 4, und die Tra­verse 5 sind miteinander verbunden und bilden zusammen ein Gestell.The work table shown in the drawings consists essentially of a table top 1, two support arms 2, two tubes 3, two feet 4 and a crossbar 5. The two tubes 3, the two feet 4, and the crossbar 5 are connected to one another and form together a rack.

Die beispielsweise aus beschichtetem Holz bestehende, rechteckige Tischplatte 1 (Figur 1) ist entsprechend den beiden Pfeilen a und b sowohl hinsichtlich ihrer Höhe (in Stufen oder stufenlos) sowie ihrer Neigung (stufenlos) in gewissen Grenzen verstellbar. An der Unterseite der Tischplatte 1 sind die beiden parallel stehenden, aus Holz oder Metall hergestellten Tragarme 2 befestigt.The rectangular table top 1 (FIG. 1), which is made of coated wood, for example, is adjustable according to the two arrows a and b with respect to its height (in steps or continuously) and its inclination (continuously) within certain limits. On the underside of the table top 1, the two parallel, made of wood or metal support arms 2 are attached.

Die beiden metallenen Füße 4 (Figur 1) sind an den unte­ren Enden der Rohre 3 rechtwinkelig befestigt und sie liegen miteinander parallel.The two metal feet 4 (Figure 1) are attached at right angles to the lower ends of the tubes 3 and they are parallel to each other.

Die zwei Rohre 3 bestehen aus nahtlos gezogenem Stahl und sie weisen einen quadratischen Querschnitt auf. Die Füße 4 sind an die Rohre angeschweißt oder auch ange­schraubt.The two tubes 3 are made of seamless drawn steel and they have a square cross section. The feet 4 are welded or screwed to the pipes.

Die beiden Rohre 3 weisen im Bereich ihrer oberen Enden in Richtung der Tragarme 2 weisende Längsschlitze 6 auf (siehe Figur 2), und in jedem Rohr 3 sitzt etwa in Höhe der Längsschlitze 6 passend ein Tragelement 7 aus Me­tall oder aus Kunststoff.The two tubes 3 have longitudinal slots 6 pointing in the region of their upper ends in the direction of the support arms 2 (see FIG. 2), and a support element 7 made of metal or plastic fits appropriately in each tube 3 approximately at the level of the longitudinal slots 6.

Weiterhin sind in den Rohren 3 zentrisch Gewindespin­deln 8 vorgesehen, die in Lagerböcken 9 drehbar gelagert sind, welche in den Rohren 3 und nahe den Füßen 4 sitzen. Auf diesen Gewindespindeln 8 sitzen die mit entsprechen­den Innengewinden 10 versehenen Tragelemente 2, welche mit Hilfe dieser Gewindespindeln 8 verschiebbar und feststellbar sind.Furthermore, threaded spindles 8 are provided centrally in the tubes 3, which are rotatably mounted in bearing blocks 9, which are seated in the tubes 3 and near the feet 4. On these threaded spindles 8 are the supporting elements 2 provided with corresponding internal threads 10, which can be displaced and locked with the aid of these threaded spindles 8.

Die Tragelemente 2 (Figur 4) besitzen eine prismatische Gestalt mit einem quadratischen Querschnitt. Jedes Trag­element 2 trägt einem im wesentlichen prismatischen Längssteg 11, welcher mit Befestigungsschrauben 12 am Tragelement 2 angeschraubt ist. Über diese Längsstege 11 sind die Tragarme 2 durch die Längsschlitze 6 hindurch an den Tragelementen 7 schwenkbar befestigt, hierbei greifen die Längsstege 11 in eine Nut 13 der Tragarme 2 ein.The support elements 2 (Figure 4) have a prismatic shape with a square cross section. Each support element 2 carries an essentially prismatic longitudinal web 11 which is screwed to the support element 2 with fastening screws 12. The support arms 2 are pivotally attached to the support elements 7 through the longitudinal slots 6 via these longitudinal webs 11, in this case the longitudinal webs 11 engage in a groove 13 in the support arms 2.

Jeder Längssteg 11 trägt zwei Augen 14 und 15. Am unteren Auge 15 ist mit einem Bolzen 16 (vergleiche Figur 2) der jeweilige Tragarm 2 angelenkt, und am oberen Auge 14 ist eine Gabel 17 mit einem Steckbolzen 18 schwenkbar eingehängt. An diese Gabel 17 ist eine Gewindebuchse 19 angeformt, in welche eine im Tragarm 2 drehbar gelagerte Betätigungsschwelle 20 mit einem endständigen Gewinde 21 eingreift. Durch Drehen der Betätigungswelle 20 (bei­spielsweise mit einer Kurbel) wird das Neigen der Tisch­platte 1 bewerkstelligt. Es wäre auch denkbar, daß die Tischplatte 1 am freien Ende der Tragarme 2 angelenkt ist.Each longitudinal web 11 carries two eyes 14 and 15. The respective support arm 2 is articulated on the lower eye 15 with a bolt 16 (see FIG. 2), and a fork 17 with a socket pin 18 is pivotally suspended on the upper eye 14. A threaded bushing 19 is formed on this fork 17, into which an actuating threshold 20, which is rotatably mounted in the support arm 2, engages with a terminal thread 21. By rotating the actuating shaft 20 (for example with a crank), the table top 1 is inclined. It would also be conceivable that the table top 1 is articulated at the free end of the support arms 2.

Am Tragelement 7 ist eine Blende 22 befestigt, welche den Längsschlitz 6 abdeckt.A diaphragm 22, which covers the longitudinal slot 6, is fastened to the support element 7.

In einfachster Weise läßt sich eine Höhenverstellung der Tischplatte 1 in Stufen (wie in Figur 1 angedeutet) da­durch bewirken, daß in den Rohren 3 seitlich Löcher vor­gesehen sind, durch welche eine Stellschraube 23 in eines von mehreren Gewindelöchern 24 eingedreht wird, die in dem Tragelement 7 in verschiedener Höhe angeordnet sind.The easiest way to adjust the height of the table top 1 in stages (as indicated in FIG. 1) is to provide holes in the tubes 3 at the side through which a set screw 23 is screwed into one of several threaded holes 24 which are in the support element 7 are arranged at different heights.

Eine stufenlose Höhenverstellung der Tischplatte 1 ge­schieht durch gemeinsames Drehen der beiden Gewinde­spindeln 8. Hierzu trägt jede Gewindespindel 8 kopf­seitig und oberhalb des Tragelementes 7 ein Kegelrad 25. In der Traverse 5 ist eine Verbindungs-Drehwelle 26 ge­lagert, an deren beiden Enden endständige Kegelräder 27 sitzen, die mit den Kegelrädern 25 in Eingriff sind.A stepless height adjustment of the table top 1 is done by rotating the two threaded spindles 8 together. For this purpose, each threaded spindle 8 carries a bevel gear 25 on the head side and above the supporting element 7. A connecting rotary shaft 26 is mounted in the crossmember 5, at the two ends of which end bevel gears 27 are seated that are engaged with the bevel gears 25.

An der Verbindungs-Drehwelle 26 sind kleine Getriebe 28 vorgesehen (Figur 1), welche im wesentlichen aus einem auf der Verbindungs-Drehwelle 26 sitzenden Kegelrad, und einem senkrecht angeordneten Wellenstumpf mit Gegen­ kegelrad bestehen, die in einem Gehäuse sitzen. In einen Innensechskant des Wellenstumpfes kann eine Handkurbel 29 eingesteckt werden, mit deren Hilfe über das betreffende Getriebe 28 die Verbindungs-Drehwelle 26 und damit die beiden Gewindespindeln 8 in Drehung versetzt werden kön­nen. Die Verdrehung der Gewindespindeln 8 bewirkt ein stufenloses Heben oder Senken der Tragelemente 7 und da­mit der Tischplatte 1. Das Getriebe 28 kann auch mit elektromotorischem Antrieb versehen sein.Small gears 28 are provided on the connecting rotary shaft 26 (FIG. 1), which essentially consist of a bevel gear seated on the connecting rotary shaft 26 and a vertically arranged shaft stub with counter bevel gear, which sit in a housing. A hand crank 29 can be inserted into an internal hexagon of the shaft stump, with the aid of which the connecting rotary shaft 26 and thus the two threaded spindles 8 can be set in rotation via the relevant gear 28. The rotation of the threaded spindles 8 causes the support elements 7 and thus the table top 1 to be raised or lowered continuously. The transmission 28 can also be provided with an electric motor drive.

Eine alternative Möglichkeit der Betätigung der Gewinde­spindeln 8 besteht darin, daß deren eine eine Längs­zahnung 30 auf ihrem Umfang trägt (in Figur 2 angedeu­tet). In diese Längszahnung 30 greift ein Schneckenrad 31 ein, das auf einer im Fuß 4 gelagerten Antriebswelle 32 befestigt ist. Die mit der Länge des Längsschlitzes über­einstimmende Längszahnung 30 könnte auch im Bereich des Längsschlitzes 6 vorgesehen und die Antriebswelle 32 des Schneckenrades im Tragarm 2 gelagert sein. Das Schneckenrad 31 selbst würde dann im Inneren eines hohl ausgebildeten Tragelementes 7 seinen Platz finden (nicht dargestellt).An alternative possibility of actuating the threaded spindles 8 is that one of them has a longitudinal toothing 30 on its circumference (indicated in FIG. 2). A worm wheel 31, which is fastened on a drive shaft 32 mounted in the base 4, engages in this longitudinal toothing 30. The longitudinal toothing 30, which corresponds to the length of the longitudinal slot, could also be provided in the area of the longitudinal slot 6 and the drive shaft 32 of the worm wheel could be mounted in the support arm 2. The worm wheel 31 itself would then find its place inside a hollow support element 7 (not shown).

Zusammenstellung der verwendeten BezugsziffernCompilation of the reference numbers used

  • 1 Tischplatte1 table top
  • 2 Tragarme2 support arms
  • 3 Rohre3 tubes
  • 4 Füße4 feet
  • 5 Traverse
    • a Pfeil
    • b Pfeil
    5 traverse
    • a arrow
    • b arrow
  • 6. Längsschlitze6. Longitudinal slots
  • 7 Tragelement7 support element
  • 8 Gewindespindel8 threaded spindle
  • 9 Lagerbock9 bearing block
  • 10 Innengewinde10 internal threads
  • 11 Längssteg11 longitudinal web
  • 12 Befestigungsschrauben12 fastening screws
  • 13 Nut13 groove
  • 14 Auge14 eye
  • 15 Auge15 eye
  • 16 Bolzen16 bolts
  • 17 Gabel17 fork
  • 18 Steckbolzen18 socket pins
  • 19 Gewindebuchse19 threaded bushing
  • 20 Betätigungswelle20 actuating shaft
  • 21 Gewinde21 threads
  • 22 Blende22 aperture
  • 23 Stellschraube23 set screw
  • 24 Gewindeloch24 threaded hole
  • 25 Kegelrad25 bevel gear
  • 26 Verbindungs-Drehwelle26 connecting rotary shaft
  • 27 Gegenkegelräder27 counter bevel gears
  • 28 Getriebe28 gearbox
  • 29 Handkurbel29 hand crank
  • 30 Längszahnung30 longitudinal teeth
  • 31 Schneckenrad31 worm wheel
  • 32 Antriebswelle32 drive shaft

Claims (12)

1. Arbeitstisch mit verstellbarer Tischplatte an zwei Tragarmen auf einem Gestell mit zwei vertikalen, mit Füßen versehenen Rohren, die durch eine Traverse mit­einander verbunden sind, dadurch gekenn­zeichnet, daß die Rohre (3) Längsschlitze (6) aufweisen, daß in jedem Rohr (3) ein vertikal verschieb­bares und feststellbares Tragelement (7) vorgesehen ist, und daß die Tragarme (2) die Längsschlitze (6) durch­setzend an den Tragelementen (7) befestigt sind.1. Work table with adjustable table top on two support arms on a frame with two vertical, feet-provided tubes, which are connected to each other by a traverse, characterized in that the tubes (3) have longitudinal slots (6) that in each tube (3 ) a vertically displaceable and lockable support element (7) is provided, and that the support arms (2) are attached to the support elements (7) so that they pass through the longitudinal slots (6). 2. Arbeitstisch nach Anspruch 1, dadurch gekennzeichnet, daß die Rohre (3) und die Tragelemente (7) quadratischen Querschnitt aufwei­sen.2. Work table according to claim 1, characterized in that the tubes (3) and the support elements (7) have a square cross section. 3. Arbeitstisch nach Anspruch 1 und 2, dadurch gekennzeichnet, daß an den Tragelemen­ten (7) Längsstege (11) angeordnet sind, welche in die Längsschlitze (6) eingreifen.3. Working table according to claim 1 and 2, characterized in that on the support elements (7) longitudinal webs (11) are arranged which engage in the longitudinal slots (6). 4. Arbeitstisch nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß die Tragelemente (7) mit wenigstens einer die Rohre (3) durchsetzenden Stell­schraube (23) feststellbar sind.4. Work table according to claim 1 to 3, characterized in that the support elements (7) with at least one of the tubes (3) passing through the adjusting screw (23) can be determined. 5. Arbeitstisch nach den Ansprüchen 1 bis 3, da­durch gekennzeichnet, daß in den Rohren (3) Gewindespindeln (8) vorgesehen sind, auf wel­ chen die mit Innengewinden (10) versehenen Tragelemen­te (7) verschiebbar sind.5. Working table according to claims 1 to 3, characterized in that in the tubes (3) threaded spindles (8) are provided, on wel Chen the support elements (7) provided with internal threads (10) are displaceable. 6. Arbeitstisch nach Anspruch 5, dadurch gekennzeichnet, daß die Gewindespin­deln (8) in Lagerböcken (9) drehbar gelagert sind, die in den Rohren (3) nahe den Füßen (4) sitzen.6. Work table according to claim 5, characterized in that the threaded spindles (8) in bearing blocks (9) are rotatably mounted, which sit in the tubes (3) near the feet (4). 7. Arbeitstisch nach den Ansprüchen 1 bis 6, dadurch gekennzeichnet, daß die Gewindespindeln (8) kopfseitig Kegelräder (25) tragen und in der Traverse (5) eine Verbindungs-Drehwelle (26) gelagert ist, an deren Enden mit den Kegelrädern (25) kämmende Gegenkegelräder (27) sitzen.7. Working table according to claims 1 to 6, characterized in that the threaded spindles (8) carry bevel gears (25) on the head side and a connecting rotary shaft (26) is mounted in the crossmember (5), at the ends of which are connected to the bevel gears (25 ) meshing counter bevel gears (27). 8. Arbeitstisch nach Anspruch 7, dadurch gekennzeichnet, daß an der Verbindungs-­Drehwelle (26) wenigstens ein Getriebe (28) angreift.8. Work table according to claim 7, characterized in that on the connecting rotary shaft (26) engages at least one gear (28). 9. Arbeitstisch nach Anspruch 7, dadurch gekennzeichnet, daß auf einer Gewinde­spindel (8) eine Längszahnung (30) angebracht ist, in welche ein Schneckenrad (31) eingreift, das auf einer in Fuß (4) gelagerten Antriebswelle (32) befestigt ist.9. Working table according to claim 7, characterized in that on a threaded spindle (8) has a longitudinal toothing (30), in which a worm wheel (31) engages, which is fastened on a drive shaft (32) mounted in the base (4). 10. Arbeitstisch nach den Ansprüchen 1 bis 9, dadurch gekennzeichnet, daß die Tragarme (2) an den Tragelementen (7) schwenkbar be­festigt sind.10. Work table according to claims 1 to 9, characterized in that the support arms (2) on the support elements (7) are pivotally attached. 11. Arbeitstisch nach Anspruch 10, dadurch gekennzeichnet, daß jedes Tragelement (7) einen in eine Nut (13) des Tragarmes (2) eingreifenden Längssteg (11) trägt, der zwei Augen (14 und 15) auf­ weist, in dessen einen (15) der Tragarm (2) angelenkt ist, und an dessen anderen (14) eine Gabel (17) schwenk­bar befestigt ist, an der eine Gewindebuchse (19) ange­formt ist, in welche eine im Tragarm (2) gelagerte Be­tätigungswelle (20) mit einem endständigen Gewinde (21) eingreift.11. Working table according to claim 10, characterized in that each support element (7) carries a in a groove (13) of the support arm (2) engaging longitudinal web (11), the two eyes (14 and 15) , in one (15) of which the support arm (2) is articulated, and on the other (14) of which a fork (17) is pivotally attached, on which a threaded bushing (19) is formed, into which one in the support arm (2) mounted actuating shaft (20) engages with a terminal thread (21). 12. Arbeitstisch nach den Ansprüchen 1 bis 11, dadurch gekennzeichnet, daß am Tragelement (7) eine Blende (22) vorgesehen ist, die hinter dem Längsschlitz (6) steht.12. Work table according to claims 1 to 11, characterized in that a panel (22) is provided on the support element (7), which is behind the longitudinal slot (6).
EP88110988A 1987-08-20 1988-07-09 Work bench with an adjustable top Withdrawn EP0307565A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8711298U 1987-08-20
DE8711298U DE8711298U1 (en) 1987-08-20 1987-08-20

Publications (1)

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EP0307565A1 true EP0307565A1 (en) 1989-03-22

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Application Number Title Priority Date Filing Date
EP88110988A Withdrawn EP0307565A1 (en) 1987-08-20 1988-07-09 Work bench with an adjustable top

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DE (1) DE8711298U1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0453409A1 (en) * 1990-04-18 1991-10-23 Manfred Kronshagen Lifting device, particularly for beds
EP0561136A1 (en) * 1992-03-17 1993-09-22 Walter Waibel Adjusting device for a leight-adjustable table
US6712008B1 (en) * 2001-05-11 2004-03-30 Bruce C. Habenicht Portable computer work station assembly
US20110018406A1 (en) * 2009-07-23 2011-01-27 Kitchen Equipment Fabricating Company Food-line serving counter with adjustable trayslide
US20130081421A1 (en) * 2011-10-04 2013-04-04 Hongsik Kwon Refrigerator
AT14682U1 (en) * 2014-10-10 2016-04-15 Procon Gmbh Maschinen & Industrieanlagen Connecting element for modular work tables

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2041915T3 (en) * 1988-09-02 1993-12-01 Stilo Ag DEVICE FOR THE HEIGHT ADJUSTMENT OF THE FIXATION OF THE BOARD OF A TABLE.
DE8815816U1 (en) * 1988-12-21 1989-02-23 Schroff Gmbh, 7541 Straubenhardt, De
EP0375626A3 (en) * 1988-12-22 1991-04-17 Stilo Ag Bellows for office furniture, and levelling device for table tops
CH708380A1 (en) * 2013-07-30 2015-01-30 Lista Office Ag Frame and furniture.

Citations (3)

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Publication number Priority date Publication date Assignee Title
FR2508291A1 (en) * 1981-06-24 1982-12-31 Mantel Embru Werke FURNITURE COMPRISING AN ADJUSTABLE TRAY FOR THE LAYOUT OF A WORKSTATION IN MODULAR CONSTRUCTION
GB2133683A (en) * 1983-01-18 1984-08-01 Mantel Embru Werke Furniture with a table-top capable of being adjusted in height and/or inclination
DE8612905U1 (en) * 1986-05-12 1986-06-26 König & Neurath KG, 6367 Karben Office table

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2508291A1 (en) * 1981-06-24 1982-12-31 Mantel Embru Werke FURNITURE COMPRISING AN ADJUSTABLE TRAY FOR THE LAYOUT OF A WORKSTATION IN MODULAR CONSTRUCTION
GB2133683A (en) * 1983-01-18 1984-08-01 Mantel Embru Werke Furniture with a table-top capable of being adjusted in height and/or inclination
DE8612905U1 (en) * 1986-05-12 1986-06-26 König & Neurath KG, 6367 Karben Office table

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0453409A1 (en) * 1990-04-18 1991-10-23 Manfred Kronshagen Lifting device, particularly for beds
EP0561136A1 (en) * 1992-03-17 1993-09-22 Walter Waibel Adjusting device for a leight-adjustable table
US6712008B1 (en) * 2001-05-11 2004-03-30 Bruce C. Habenicht Portable computer work station assembly
US20110018406A1 (en) * 2009-07-23 2011-01-27 Kitchen Equipment Fabricating Company Food-line serving counter with adjustable trayslide
US20130081421A1 (en) * 2011-10-04 2013-04-04 Hongsik Kwon Refrigerator
US8960825B2 (en) * 2011-10-04 2015-02-24 Lg Electronics Inc. Refrigerator
US9239184B2 (en) 2011-10-04 2016-01-19 Lg Electronics Inc. Refrigerator
US9347703B2 (en) 2011-10-04 2016-05-24 Lg Electronics Inc. Refrigerator
US9353987B2 (en) 2011-10-04 2016-05-31 Lg Electronics Inc. Refrigerator
AT14682U1 (en) * 2014-10-10 2016-04-15 Procon Gmbh Maschinen & Industrieanlagen Connecting element for modular work tables

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