EP2497386A1 - Height-adjustable desk frame, in particular for an office desk, and desk with same - Google Patents

Height-adjustable desk frame, in particular for an office desk, and desk with same Download PDF

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Publication number
EP2497386A1
EP2497386A1 EP12001049A EP12001049A EP2497386A1 EP 2497386 A1 EP2497386 A1 EP 2497386A1 EP 12001049 A EP12001049 A EP 12001049A EP 12001049 A EP12001049 A EP 12001049A EP 2497386 A1 EP2497386 A1 EP 2497386A1
Authority
EP
European Patent Office
Prior art keywords
table frame
housing
force transducer
longitudinal
longitudinal beams
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.)
Granted
Application number
EP12001049A
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German (de)
French (fr)
Other versions
EP2497386B1 (en
Inventor
Martin Block
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.)
Oelschlaeger Metalltechnik GmbH
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Oelschlaeger Metalltechnik GmbH
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Publication of EP2497386A1 publication Critical patent/EP2497386A1/en
Application granted granted Critical
Publication of EP2497386B1 publication Critical patent/EP2497386B1/en
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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
    • A47B9/00—Tables with tops of variable height
    • 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
    • A47B13/00—Details of tables or desks
    • A47B13/003—Connecting table tops to underframes

Definitions

  • the present invention relates to a height-adjustable table frame according to the preamble of claim 1 and a table with selbigem, d. H. So a height-adjustable table.
  • EP 1 704 797 A1 is a work table with a particular height-adjustable frame known to whose adjustment at least one attacking on an actuator electric motor is provided with a control device, wherein at least one load-bearing part of the frame provided with a strain gauge or supported on a force transducer and the strain gauge or the load cell controls the control device for the motor as a function of the load of the load-bearing part.
  • the post-published DE 10 2009 058 422 A1 discloses a height-adjustable table frame according to the preamble of claim 1.
  • the force transducer is an angle plate, which is attached to both the table frame and on a mounted on the table frame table top.
  • the strain gauge is used to detect a collision with an obstacle in the range ofnetverstellweges the table frame.
  • An obstacle may be, for example, a windowsill, a sloping roof or an open window.
  • the detection of a collision can reduce its consequences for the obstacle as well as for the table or objects on the table.
  • the detection of a collision also provides a clamp or interference protection. Due to the attachment to the table top is the sensor or Force transducer but not in sliding table tops, so-called sliding plates, usable.
  • the invention is therefore based on the object, a detection of collisions even with height-adjustable tables regardless of the way of mounting the table top, for example, even with sliding table tops to allow.
  • the force transducer preferably extends transversely to the two or two longitudinal beams and is mechanically coupled thereto, wherein the strain gauge is preferably arranged centrally relative to the longitudinal extension of the force transducer.
  • the strain gauge is preferably arranged centrally relative to the longitudinal extension of the force transducer.
  • it is a separate from a plate support load cell.
  • the force transducer is a spring body, preferably in ribbon or rod form.
  • it may be a particular flat metal band.
  • the spring body is fastened by means of screws to the longitudinal members.
  • screws to achieve a non-positive connection but also, for example, rivets, gluing, welding and “snapping" (mechanical positive engagement) would be conceivable.
  • the spring body is a, preferably arcuately biased, metal strip.
  • the ends of the spring body on bends or bends.
  • the force transducer is an elastically deformable angle plate, which is preferably arranged in a housing made of plastic, which preferably extends transversely to the two or two longitudinal beams and connected to these non-positively.
  • the housing has two housing parts, wherein one of the two housing parts is non-positively connected to one of the two longitudinal beams and the other of the two housing parts with the other of the two longitudinal beams is frictionally connected, and the angle plate two legs and one of these having connecting web, wherein one of the two legs is connected to one of the two housing parts and the other of the two legs with the other of the two housing parts.
  • the housing via two spring-loaded bolts with mushroom heads, which are preferably lockable via a respective eccentric tension lever in a respective keyhole bore in the longitudinal beams on the same, with the longitudinal beams connected non-positively.
  • the housing with the strain gauge can be retrofitted in this way, without the table frame or parts thereof, as the longitudinal beams must be dismantled.
  • the present invention provides a table, in particular office table, comprising a table frame according to one of claims 1 to 8 and a table frame supported on the table and associated therewith.
  • the invention is based on the surprising finding that by the arrangement of the force transducer between the two longitudinal beams and without attachment to the table top loads a table top and thus also the underlying table frame, resulting in a deformation or tension between the longitudinal beams reflect even with a height-adjustable table with a sliding table top can be detected. In addition, this also results in a higher sensitivity for the detection of a collision. It is thus possible to achieve higher signals, in particular with a better signal-to-noise ratio, and / or a larger spatial collision detection range. This applies in particular in combination with an integrated engine collision detection, for example via the engine load or speed and power consumption, ie a pure software-based collision detection.
  • the force transducer is arranged together with the strain gauge in a housing, as well as the risk of damage to the DehnmessstMails is reduced during assembly to a table frame and at the same time transmitted the force.
  • the Indian FIG. 1 Table 10 shown has a height-adjustable table frame 12 and a table top 14 carried thereon and associated therewith.
  • the height-adjustable table frame 12 has two longitudinal bars 16 and 18 and two transverse thereto Plate support 20 and 22, to each of which a height-adjustable table leg 24 and 26 is coupled. In the present case, these are so-called T-feet. In other cases, other feet may be provided.
  • a drive unit 28 or 30 is provided in each case. These each include an electric motor.
  • a control unit 32 is provided.
  • the drive units 28 and 30 and the control unit 32 are arranged below the table top 14 between the parallel longitudinal bars 16 and 18.
  • the housing 34 extends transversely to the longitudinal members 16 and 18 and is connected to these non-positively.
  • a strain gauge 36 is arranged in the housing 34.
  • the strain gauge 36 is electrically connected via connecting cable 38 with an amplifier box 40. The latter serves to reinforce the measurement signal supplied by the strain gauge.
  • the amplified signal passes via a signal line 42 in the control unit 32 (see also FIG. 2 ).
  • the measurement signal is dependent on the mechanical load of the table frame 12 and this in turn on the mechanical stress of the table top in the event of a collision when booting or lowering the table top 14. More precisely, the strain gauge gives a signal representing the compressive stress change in the upper frame of the plate carriers 20 and 22 and the longitudinal bars 16 and 18 to the amplifier box 40. This even has two signal inputs, so that theoretically two strain gauges, for example at a table angle combination, can be used . In the control unit, the amplified measurement signal is processed / evaluated. If it exceeds a threshold that can be set quite different for the upward movement and the downward movement of the table frame, it is assumed that a collision. In such a case, the movement of the table frame is stopped and the table is briefly relieved in the respective opposite direction.
  • FIGS. 3 to 8 show details of the housing 34 with the strain gauge 36 and the frictional connection thereof with the two longitudinal beams 16 and 18, wherein the FIGS. 4 and 5 show the state in which the housing is already arranged between the two longitudinal beams 16 and 18 and also locked therein, but the non-positive connection only in the FIGS. 7 and 8th is shown.
  • the housing 34 consists of two housing parts, namely 34A and 34B.
  • the housing part 34A is frictionally connected to the longitudinal spar 16, while the housing part 34B is frictionally connected to the longitudinal beam 18.
  • the two housing parts 34A and 34B are not directly connected to each other and designed and assembled so that in the middle region, a kind of protection chamber 44 is formed for the strain gauge 36 disposed therein.
  • both housing parts 34A and 34B are movable relative to each other at least to some extent. This applies in particular in the plane of the drawing and in a plane perpendicular to it, essentially parallel to the longitudinal extension of the housing.
  • each of the two longitudinal beams 16 and 18 has a keyhole bore 46 and 48, respectively.
  • Each of the two housing parts 34A and 34B has a spring-loaded by a spring 50 bolts 52 with a mushroom head 54, which are locked via a respective eccentric clamping lever 56 in the respective keyhole bore 46 and 48 in the longitudinal beams 16 and 18 on the same. As a result, the adhesion is achieved.
  • the housing parts 34A and 34B are also designed so that unintentional opening or releasing the eccentric clamping lever via respective locking lugs 58 and additional positive engagement between the bolts 52, eccentric tension levers 56 and housing parts 34A and 34B is prevented.
  • the bolts 52 are designed so that they can dive into the housing 34 spring-loaded for mounting between the longitudinal bars 16 and 18 in the respective housing part 34A and 34B, for this purpose lowered holes 59 and 61 are provided in the housing walls, and at Reaching the mounting positionsätig via the spring force in the space provided for keyhole holes 46 and 48 engage.
  • results from the FIGS. 4 to 9 at least substantially the arrangement of the strain gauge 36.
  • the latter is glued to an elastically deformable angle plate 60.
  • the angle plate 60 has a leg 62 and a leg 64 which are interconnected by a web 66.
  • the legs 62 and 64 are each arranged at a right angle to the web 66, although the Abkantungs- or Abwinklungslinien 68 and 70, although in the same plane, but at an angle of 90 ° to each other.
  • the leg 62 is connected to the housing part 34A by a screw 72
  • the leg 64 is connected to the housing part 34B by means of a screw 74.
  • the housing parts 34A and 34B are connected to each other only via the angle plate 60.
  • the housing parts 34A and 34B in turn ensure by the frictional connection with the longitudinal beams 16 and 18 for a bias of the angle plate 60. If in the event of a collision, a mechanical load on the table top, it is passed to the longitudinal members 16 and / or 18. Via the housing parts 34A and 34B there is a good force transmission to the angle plate 60, which in turn can be detected well via the strain gauge 36.
  • FIGS. 10 to 13 give a further impression of the design of the housing 34, namely in the form of two housing parts 34A and 34B, the connection is made only by the angle plate 60 and the arrangement of the strain gauge in the region of the web 66 of the angle plate 60.
  • FIGS. 14 to 22 show detail views partly in section of tables according to particular embodiments of the present invention.
  • the strain gauge 36 is not in a housing. It is a force transducer in the form of a spring body 76 is provided.
  • the spring body is an elastically deformable prestressed metal band extending transversely to the Longitudinal beams 16 and 18 extends and is fastened with its ends by means of screws 78 to the longitudinal members 16 and 18, respectively.
  • the metal bands have different shapes and they are different, for example, horizontal or vertical, oriented.
  • the bends or bends 80 in the same see FIGS. 14 to 20 and 22) or in opposite directions ( FIG. 21 ) bevelled or angled.
  • the strain gauge 36 is always centered in the longitudinal extent of the metal strip.
  • a force transducer in particular in the form of a spring body, and a strain gauge
  • another means for directly or indirectly measuring the mechanical loading of a table or a table frame can be used.
  • piezoelectric elements piezo force transducers
  • load cells load cells

Landscapes

  • Tables And Desks Characterized By Structural Shape (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

The underframe (12) has longitudinal struts (16, 18), plate supports (20, 22), and height-adjustable table-legs (24, 26) coupled to the supports. Drive units (28, 30) adjust the table-legs, and a control unit (32) controls the drive units. A strain gauge of a housing is connected with the control unit. The gauge delivers measuring signals to the control unit. A force transducer e.g. spring body, extends transverse to the struts. The strain gauge is arranged in a middle relative to a longitudinal extension of the force transducer. The force transducer is in band or rod shape. The spring body is designed as an arc-shaped pretensioned, metal band. The force transducer is designed as an elastically deformable angular sheet, which is arranged in the housing made of plastic. An independent claim is also included for an office table.

Description

Die vorliegende Erfindung betrifft ein höhenverstellbares Tischgestell gemäß dem Oberbegriff von Anspruch 1 sowie einen Tisch mit selbigem, d. h. also einen höhenverstellbaren Tisch.The present invention relates to a height-adjustable table frame according to the preamble of claim 1 and a table with selbigem, d. H. So a height-adjustable table.

Aus der EP 1 704 797 A1 ist ein Arbeitstisch mit einem insbesondere der Höhe nach verstellbaren Gestell bekannt, zu dessen Verstellung wenigstens ein an einem Stelltrieb angreifender elektrischer Motor mit einer Steuereinrichtung vorgesehen ist, wobei wenigstens ein lastabtragender Teil des Gestells mit einem Dehnmessstreifen versehen oder auf einem Kraftaufnehmer abgestützt ist und der Dehnmessstreifen bzw. der Kraftaufnehmer die Steuereinrichtung für den Motor in Abhängigkeit von der Belastung des lastabtragenden Teils ansteuert.From the EP 1 704 797 A1 is a work table with a particular height-adjustable frame known to whose adjustment at least one attacking on an actuator electric motor is provided with a control device, wherein at least one load-bearing part of the frame provided with a strain gauge or supported on a force transducer and the strain gauge or the load cell controls the control device for the motor as a function of the load of the load-bearing part.

Die nachveröffentlichte DE 10 2009 058 422 A1 offenbart ein höhenverstellbares Tischgestell gemäß dem Oberbegriff von Anspruch 1. Bei dem Kraftaufnehmer handelt es sich um ein Winkelblech, das sowohl an dem Tischgestell als auch an einer auf dem Tischgestell angebrachten Tischplatte befestigt ist. Der Dehnmessstreifen dient zur Detektion einer Kollision mit einem Hindernis im Bereich des Höhenverstellweges des Tischgestells. Ein Hindernis kann beispielsweise eine Fensterbank, eine Dachschräge oder ein geöffnetes Fenster sein. Durch die Detektion einer Kollision können die Folgen derselben sowohl für das Hindernis als auch für den Tisch oder für Gegenstände auf dem Tisch gemindert werden. Desweiteren wird durch die Detektion einer Kollision auch ein Klemm- oder Störungsschutz bereitgestellt. Aufgrund der Befestigung an der Tischplatte ist der Sensor bzw. Kraftaufnehmer jedoch nicht bei verschiebbaren Tischplatten, sogenannten Schiebeplatten, verwendbar.The post-published DE 10 2009 058 422 A1 discloses a height-adjustable table frame according to the preamble of claim 1. The force transducer is an angle plate, which is attached to both the table frame and on a mounted on the table frame table top. The strain gauge is used to detect a collision with an obstacle in the range of Höhenverstellweges the table frame. An obstacle may be, for example, a windowsill, a sloping roof or an open window. The detection of a collision can reduce its consequences for the obstacle as well as for the table or objects on the table. Furthermore, the detection of a collision also provides a clamp or interference protection. Due to the attachment to the table top is the sensor or Force transducer but not in sliding table tops, so-called sliding plates, usable.

Der Erfindung liegt somit die Aufgabe zugrunde, eine Detektion von Kollisionen auch bei höhenverstellbaren Tischen unabhängig von der Montageweise der Tischplatte, zum Beispiel auch bei verschiebbaren Tischplatten, zu ermöglichen.The invention is therefore based on the object, a detection of collisions even with height-adjustable tables regardless of the way of mounting the table top, for example, even with sliding table tops to allow.

Erfindungsgemäß wird diese Aufgabe bei dem Tischgestell der eingangs genannten Art dadurch gelöst, dass sich der Kraftaufnehmer vorzugsweise quer zu den beiden bzw. zwei Längsholmen erstreckt und mit diesen mechanisch gekoppelt ist, wobei der Dehnmessstreifen vorzugsweise mittig bezogen auf die Längserstreckung des Kraftaufnehmers angeordnet ist. Vorzugsweise handelt es sich um einen von einem Plattenträger separaten Kraftaufnehmer.According to the invention this object is achieved in the table frame of the type mentioned in that the force transducer preferably extends transversely to the two or two longitudinal beams and is mechanically coupled thereto, wherein the strain gauge is preferably arranged centrally relative to the longitudinal extension of the force transducer. Preferably, it is a separate from a plate support load cell.

Gemäß einer besonderen Ausführungsform der Erfindung ist der Kraftaufnehmer ein Federkörper, vorzugsweise in Band- oder Stabform. Beispielsweise kann es sich um ein insbesondere flaches Metallband handeln.According to a particular embodiment of the invention, the force transducer is a spring body, preferably in ribbon or rod form. For example, it may be a particular flat metal band.

Zweckmäßigerweise ist der Federkörper mittels Schrauben an den Längsholmen befestigt. Zum Erzielen einer kraftschlüssigen Verbindung wäre aber beispielsweise auch Nieten, Kleben, Schweißen und "Einrasten" (mechanischer Formschluss) denkbar.Appropriately, the spring body is fastened by means of screws to the longitudinal members. To achieve a non-positive connection but also, for example, rivets, gluing, welding and "snapping" (mechanical positive engagement) would be conceivable.

Vorteilhafterweise ist der Federkörper ein, vorzugsweise bogenförmig vorgespanntes, Metallband.Advantageously, the spring body is a, preferably arcuately biased, metal strip.

Günstigerweise weisen die Enden des Federkörpers Abkantungen oder Abwinklungen auf.Conveniently, the ends of the spring body on bends or bends.

Gemäß einer alternativen Ausführungsform ist der Kraftaufnehmer ein elastisch verformbares Winkelblech, das in einem Gehäuse vorzugsweise aus Kunststoff angeordnet ist, das sich vorzugsweise quer zu den beiden bzw. zwei Längsholmen erstreckt und mit diesen kraftschlüssig verbunden.According to an alternative embodiment, the force transducer is an elastically deformable angle plate, which is preferably arranged in a housing made of plastic, which preferably extends transversely to the two or two longitudinal beams and connected to these non-positively.

Insbesondere kann dabei vorgesehen sein, dass das Gehäuse zwei Gehäuseteile aufweist, wobei eines der beiden Gehäuseteile mit einem der beiden Längsholme kraftschlüssig verbunden ist und das andere der beiden Gehäuseteile mit dem anderen der beiden Längsholme kraftschlüssig verbunden ist, und das Winkelblech zwei Schenkel und einen diese verbindenden Steg aufweist, wobei einer der beiden Schenkel mit einem der beiden Gehäuseteile und der andere der beiden Schenkel mit dem anderen der beiden Gehäuseteile verbunden ist.In particular, it can be provided that the housing has two housing parts, wherein one of the two housing parts is non-positively connected to one of the two longitudinal beams and the other of the two housing parts with the other of the two longitudinal beams is frictionally connected, and the angle plate two legs and one of these having connecting web, wherein one of the two legs is connected to one of the two housing parts and the other of the two legs with the other of the two housing parts.

Vorteilhafterweise ist das Gehäuse über zwei federbelastete Bolzen mit Pilzköpfen, die vorzugsweise über jeweils über einen Exzenterspannhebel in einer jeweiligen Schlüsselloch-Bohrung in den Längsholmen an selbigen verriegelbar sind, mit den Längsholmen kraftschlüssig verbindbar. Dies erlaubt eine werkzeuglose Montage. Darüberhinaus kann das Gehäuse mit dem Dehnmessstreifen auf diese Weise auch noch nachträglich montiert werden, ohne dass das Tischgestell bzw. Teile davon, wie die Längsholme, demontiert werden müssen.Advantageously, the housing via two spring-loaded bolts with mushroom heads, which are preferably lockable via a respective eccentric tension lever in a respective keyhole bore in the longitudinal beams on the same, with the longitudinal beams connected non-positively. This allows a tool-free installation. In addition, the housing with the strain gauge can be retrofitted in this way, without the table frame or parts thereof, as the longitudinal beams must be dismantled.

Weiterhin liefert die vorliegende Erfindung einen Tisch, insbesondere Bürotisch, umfassend ein Tischgestell nach einem der Ansprüche 1 bis 8 sowie eine auf dem Tischgestell getragene und damit verbundene Tischplatte.Furthermore, the present invention provides a table, in particular office table, comprising a table frame according to one of claims 1 to 8 and a table frame supported on the table and associated therewith.

Der Erfindung liegt die überraschende Erkenntnis zugrunde, dass durch die Anordnung des Kraftaufnehmers zwischen den beiden Längsholmen und ohne eine Befestigung an der Tischplatte Belastungen einer Tischplatte und damit auch des darunter befindlichen Tischgestells, die sich in einer Verformung bzw. Spannungen zwischen den Längsholmen widerspiegeln, auch bei einem höhenverstellbaren Tisch mit einer verschiebbaren Tischplatte erfasst werden können. Zudem ergibt sich dadurch auch noch eine höhere Empfindlichkeit für die Detektion einer Kollision. Man kann also höhere Signale, insbesondere mit einem besseren Signal-zu-Rausch-Verhältnis, und/oder einen größeren räumlichen Kollisionsdetektionsbereich erzielen. Dies gilt insbesondere in Kombination mit einer integrierten Motorkollisionserkennung, zum Beispiel über die Motorbelastung oder Geschwindigkeit und Stromaufnahme, d. h. einer reinen Software-basierten Kollisionserkennung.The invention is based on the surprising finding that by the arrangement of the force transducer between the two longitudinal beams and without attachment to the table top loads a table top and thus also the underlying table frame, resulting in a deformation or tension between the longitudinal beams reflect even with a height-adjustable table with a sliding table top can be detected. In addition, this also results in a higher sensitivity for the detection of a collision. It is thus possible to achieve higher signals, in particular with a better signal-to-noise ratio, and / or a larger spatial collision detection range. This applies in particular in combination with an integrated engine collision detection, for example via the engine load or speed and power consumption, ie a pure software-based collision detection.

Wenn gemäß einer besonderen Ausführungsform der Kraftaufnehmer gemeinsam mit dem Dehnmessstreifen in einem Gehäuse angeordnet ist, so wird dadurch auch die Gefahr einer Beschädigung des Dehnmessstreifens bei der Montage an einem Tischgestell verringert und gleichzeitig die Kraft übertragen.If according to a particular embodiment, the force transducer is arranged together with the strain gauge in a housing, as well as the risk of damage to the Dehnmessstreifens is reduced during assembly to a table frame and at the same time transmitted the force.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus den beigefügten Ansprüchen und der nachfolgenden Beschreibung, in der Ausführungsbeispiele anhand der schematischen Zeichnungen im einzelnen erläutert sind. Dabei zeigt:

Figur 1
eine perspektivische Ansicht von einem Tisch gemäß einer besonderen Ausführungsform der vorliegenden Erfindung mit einer transparent dargestellten Tischplatte schräg von oben;
Figur 2
den Tisch von Figur 1 ohne (Fuß-) Kufen von unten;
Figur 3
das Detail Z von Figur 2;
Figur 4
eine Schnittansicht entlang der Linie A-A von Figur 3;
Figur 5
eine Schnittansicht entlang der Linie B-B von Figur 3;
Figur 6
eine Ansicht wie Figur 3, außer dass das Gehäuse mittels Exzenterspannhebel in Längsholmen verriegelt ist;
Figur 7
eine Schnittansicht entlang der Linie A-A von Figur 6;
Figur 8
eine Schnittansicht entlang der Linie B-B von Figur 6;
Figur 9
eine Art Explosionsansicht von zwei Längsholmen und einem Gehäuse;
Figur 10
eine Ansicht von dem in Figur 9 gezeigten Gehäuse von der zur Tischplatte gewandten Seite;
Figur 11
eine Schnittansicht entlang der Linie A-A von Figur 10;
Figur 12
eine Seitenansicht vom in Figur 9 gezeigten Gehäuse zwischen den beiden Längsholmen; und
Figur 13
eine Schnittansicht entlang der B-B von Figur 12;
Figur 14
eine Detailansicht teilweise im Schnitt von einem Tisch gemäß einer weiteren besonderen Ausführungsform der vorliegenden Erfindung;
Figur 15
eine Detailansicht teilweise im Schnitt von einem Tisch gemäß einer weiteren besonderen Ausführungsform der vorliegenden Erfindung;
Figur 16
eine Detailansicht teilweise im Schnitt von einem Tisch gemäß einer weiteren besonderen Ausführungsform der vorliegenden Erfindung;
Figur 17
eine Detailansicht teilweise im Schnitt von einem Tisch gemäß einer weiteren besonderen Ausführungsform der vorliegenden Erfindung;
Figur 18
eine Detailansicht teilweise im Schnitt von einem Tisch gemäß einer weiteren besonderen Ausführungsform der vorliegenden Erfindung;
Figur 19
eine Detailansicht teilweise im Schnitt von einem Tisch gemäß einer weiteren besonderen Ausführungsform der vorliegenden Erfindung;
Figur 20
eine Detailansicht teilweise im Schnitt von einem Tisch gemäß einer weiteren besonderen Ausführungsform der vorliegenden Erfindung;
Figur 21
eine Detailansicht teilweise im Schnitt von einem Tisch gemäß einer weiteren besonderen Ausführungsform der vorliegenden Erfindung; und
Figur 22
eine Detailansicht teilweise im Schnitt von einem Tisch gemäß einer weiteren besonderen Ausführungsform der vorliegenden Erfindung.
Further features and advantages of the invention will become apparent from the appended claims and the following description, are explained in the embodiments with reference to the schematic drawings in detail. Showing:
FIG. 1
a perspective view of a table according to a particular embodiment of the present invention with a transparent table top obliquely from above;
FIG. 2
the table of FIG. 1 without (foot) runners from below;
FIG. 3
the detail Z of FIG. 2 ;
FIG. 4
a sectional view taken along the line AA of FIG. 3 ;
FIG. 5
a sectional view taken along the line BB of FIG. 3 ;
FIG. 6
a view like FIG. 3 except that the housing is locked by means of eccentric tension lever in longitudinal beams;
FIG. 7
a sectional view taken along the line AA of FIG. 6 ;
FIG. 8
a sectional view taken along the line BB of FIG. 6 ;
FIG. 9
a kind of exploded view of two longitudinal beams and a housing;
FIG. 10
a view of that in FIG. 9 shown housing from the side facing the table top;
FIG. 11
a sectional view taken along the line AA of FIG. 10 ;
FIG. 12
a side view of in FIG. 9 shown housing between the two longitudinal beams; and
FIG. 13
a sectional view along the BB of FIG. 12 ;
FIG. 14
a detail view partially in section of a table according to another particular embodiment of the present invention;
FIG. 15
a detail view partially in section of a table according to another particular embodiment of the present invention;
FIG. 16
a detail view partially in section of a table according to another particular embodiment of the present invention;
FIG. 17
a detail view partially in section of a table according to another particular embodiment of the present invention;
FIG. 18
a detail view partially in section of a table according to another particular embodiment of the present invention;
FIG. 19
a detail view partially in section of a table according to another particular embodiment of the present invention;
FIG. 20
a detail view partially in section of a table according to another particular embodiment of the present invention;
FIG. 21
a detail view partially in section of a table according to another particular embodiment of the present invention; and
FIG. 22
a detail view partially in section of a table according to another particular embodiment of the present invention.

Der in der Figur 1 gezeigte Tisch 10 weist ein höhenverstellbares Tischgestell 12 sowie eine darauf getragene und damit verbundene Tischplatte 14 auf. Das höhenverstellbare Tischgestell 12 weist zwei Längsholme 16 und 18 sowie zwei dazu quer verlaufende Plattenträger 20 und 22 auf, an denen jeweils ein höhenverstellbares Tischbein 24 bzw. 26 angekoppelt ist. Im vorliegenden Fall handelt es sich um sogenannte T-Füße. In anderen Fällen können auch andere Füße vorgesehen sein.The Indian FIG. 1 Table 10 shown has a height-adjustable table frame 12 and a table top 14 carried thereon and associated therewith. The height-adjustable table frame 12 has two longitudinal bars 16 and 18 and two transverse thereto Plate support 20 and 22, to each of which a height-adjustable table leg 24 and 26 is coupled. In the present case, these are so-called T-feet. In other cases, other feet may be provided.

Zur Verstellung der höhenverstellbaren Tischbeine 24 und 26 ist jeweils eine Antriebseinheit 28 bzw. 30 vorgesehen. Diese umfassen jeweils einen Elektromotor.To adjust the height-adjustable table legs 24 and 26, a drive unit 28 or 30 is provided in each case. These each include an electric motor.

Desweiteren ist eine Steuereinheit 32 vorgesehen. Die Antriebseinheiten 28 und 30 sowie die Steuereinheit 32 sind unterhalb der Tischplatte 14 zwischen den parallelen Längsholmen 16 und 18 angeordnet. In Längserstreckung der Längsholme 16 und 18 mittig befindet sich ein Gehäuse 34. Das Gehäuse 34 erstreckt sich quer zu den Längsholmen 16 und 18 und ist mit diesen kraftschlüssig verbunden. Wie sich anhand der Figuren 4, 5, 7, 8, 10, 11, 12 und 13 ergibt, ist in dem Gehäuse 34 ein Dehnmessstreifen 36 angeordnet. Der Dehnmessstreifen 36 ist über Anschlusskabel 38 mit einer Verstärkerbox 40 elektrisch verbunden. Letztere dient zur Verstärkung des von dem Dehnmessstreifen gelieferten Messsignals. Das verstärkte Signal gelangt über eine Signalleitung 42 in die Steuereinheit 32 (siehe auch Figur 2). Das Messsignal ist von der mechanischen Belastung des Tischgestell 12 und diese wiederum von der mechanischen Belastung der Tischplatte im Falle einer Kollision beim Hochfahren bzw. Absenken der Tischplatte 14 abhängig. Genauer gesagt gibt der Dehnmessstreifen ein die Druckspannungsänderung im Oberrahmen aus den Plattenträgern 20 und 22 und den Längsholmen 16 und 18 repräsentierendes Signal an die Verstärkerbox 40. Diese verfügt sogar über zwei Signaleingänge, so dass theoretisch zwei Dehnmessstreifen, zum Beispiel bei einer Tischwinkelkombination, einsetzbar sind. In der Steuereinheit wird das verstärkte Messsignal verarbeitet/ausgewertet. Wenn es einen Schwellenwert, der für die Aufwärtsbewegung und die Abwärtsbewegung des Tischgestells durchaus unterschiedlich eingestellt werden kann, überschreitet, so wird von einer Kollision ausgegangen. In einem derartigen Fall wird die Verfahrbewegung des Tischgestells gestoppt und wird der Tisch kurz in die jeweilige Gegenrichtung entlastet.Furthermore, a control unit 32 is provided. The drive units 28 and 30 and the control unit 32 are arranged below the table top 14 between the parallel longitudinal bars 16 and 18. In the longitudinal direction of the longitudinal bars 16 and 18 in the middle there is a housing 34. The housing 34 extends transversely to the longitudinal members 16 and 18 and is connected to these non-positively. As reflected by the FIGS. 4 . 5 . 7 . 8th . 10 . 11 . 12 and 13 results, in the housing 34, a strain gauge 36 is arranged. The strain gauge 36 is electrically connected via connecting cable 38 with an amplifier box 40. The latter serves to reinforce the measurement signal supplied by the strain gauge. The amplified signal passes via a signal line 42 in the control unit 32 (see also FIG. 2 ). The measurement signal is dependent on the mechanical load of the table frame 12 and this in turn on the mechanical stress of the table top in the event of a collision when booting or lowering the table top 14. More precisely, the strain gauge gives a signal representing the compressive stress change in the upper frame of the plate carriers 20 and 22 and the longitudinal bars 16 and 18 to the amplifier box 40. This even has two signal inputs, so that theoretically two strain gauges, for example at a table angle combination, can be used , In the control unit, the amplified measurement signal is processed / evaluated. If it exceeds a threshold that can be set quite different for the upward movement and the downward movement of the table frame, it is assumed that a collision. In such a case, the movement of the table frame is stopped and the table is briefly relieved in the respective opposite direction.

Die Figuren 3 bis 8 zeigen Einzelheiten des Gehäuses 34 mit dem Dehnmessstreifen 36 sowie der kraftschlüssigen Verbindung desselben mit den beiden Längsholmen 16 und 18, wobei die Figuren 4 und 5 den Zustand zeigen, in dem das Gehäuse bereits zwischen den beiden Längsholmen 16 und 18 angeordnet und auch darin eingerastet ist, die kraftschlüssige Verbindung jedoch erst in den Figuren 7 und 8 gezeigt ist.The FIGS. 3 to 8 show details of the housing 34 with the strain gauge 36 and the frictional connection thereof with the two longitudinal beams 16 and 18, wherein the FIGS. 4 and 5 show the state in which the housing is already arranged between the two longitudinal beams 16 and 18 and also locked therein, but the non-positive connection only in the FIGS. 7 and 8th is shown.

Das Gehäuse 34 besteht aus zwei Gehäuseteilen, nämlich 34A und 34B. Das Gehäuseteil 34A ist mit dem Längsholm 16 kraftschlüssig verbunden, während das Gehäuseteil 34B mit dem Längsholm 18 kraftschlüssig verbunden ist. Die beiden Gehäuseteile 34A und 34B sind nicht direkt miteinander verbunden und so gestaltet sowie zusammengesetzt, dass sich im mittleren Bereich eine Art Schutzkammer 44 für den darin angeordneten Dehnmessstreifen 36 entsteht. Zudem sind beide Gehäuseteile 34A und 34B zumindest in gewissem Maße relativ zueinander beweglich. Dies gilt insbesondere in der Zeichenebene und in einer dazu senkrechten, im wesentlichen zur Längserstreckung des Gehäuses parallelen Ebene.The housing 34 consists of two housing parts, namely 34A and 34B. The housing part 34A is frictionally connected to the longitudinal spar 16, while the housing part 34B is frictionally connected to the longitudinal beam 18. The two housing parts 34A and 34B are not directly connected to each other and designed and assembled so that in the middle region, a kind of protection chamber 44 is formed for the strain gauge 36 disposed therein. In addition, both housing parts 34A and 34B are movable relative to each other at least to some extent. This applies in particular in the plane of the drawing and in a plane perpendicular to it, essentially parallel to the longitudinal extension of the housing.

Wie sich anhand einer Zusammenschau der Figuren 3 bis 9 ergibt, weist jeder der beiden Längsholme 16 und 18 eine Schlüsselloch-Bohrung 46 bzw. 48 auf. Jedes der beiden Gehäuseteile 34A und 34B verfügt über einen mittels einer Feder 50 federbelasteten Bolzen 52 mit einem Pilzkopf 54, die über jeweils einen Exzenterspannhebel 56 in der jeweiligen Schlüsselloch-Bohrung 46 bzw. 48 in den Längsholmen 16 bzw. 18 an selbigen verriegelbar sind. Dadurch wird der Kraftschluss erzielt. Die Gehäuseteile 34A und 34B sind zudem so gestaltet, dass ein ungewolltes Öffnen bzw. Lösen der Exzenterspannhebel über jeweilige Rastnasen 58 und zusätzlichen Formschluss zwischen den Bolzen 52, Exzenterspannhebeln 56 und Gehäuseteilen 34A bzw. 34B verhindert wird. Zudem sind die Bolzen 52 so gestaltet, dass sie für die Montage zwischen den Längsholmen 16 und 18 im jeweiligen Gehäuseteil 34A bzw. 34B federbelastet in das Gehäuse 34 eintauchen können, wobei hierfür abgesenkte Bohrungen 59 bzw. 61 in den Gehäusewänden vorgesehen sind, und bei Erreichen der Montageposition selbstätig über die Federkraft in die hierfür vorgesehenen Schlüsselloch-Bohrungen 46 bzw. 48 einrasten.As can be seen from a synopsis of FIGS. 3 to 9 shows, each of the two longitudinal beams 16 and 18 has a keyhole bore 46 and 48, respectively. Each of the two housing parts 34A and 34B has a spring-loaded by a spring 50 bolts 52 with a mushroom head 54, which are locked via a respective eccentric clamping lever 56 in the respective keyhole bore 46 and 48 in the longitudinal beams 16 and 18 on the same. As a result, the adhesion is achieved. The housing parts 34A and 34B are also designed so that unintentional opening or releasing the eccentric clamping lever via respective locking lugs 58 and additional positive engagement between the bolts 52, eccentric tension levers 56 and housing parts 34A and 34B is prevented. In addition, the bolts 52 are designed so that they can dive into the housing 34 spring-loaded for mounting between the longitudinal bars 16 and 18 in the respective housing part 34A and 34B, for this purpose lowered holes 59 and 61 are provided in the housing walls, and at Reaching the mounting position selbstätig via the spring force in the space provided for keyhole holes 46 and 48 engage.

Wie bereits oben erwähnt, sind die Exzenterspannhebel 56 in den Figuren 3 bis 5 noch nicht gespannt. Dies ist aber in den Figuren 6 bis 8 der Fall.As already mentioned above, the eccentric tension levers 56 are in the FIGS. 3 to 5 not curious yet. But this is in the FIGS. 6 to 8 the case.

Desweiteren ergibt sich aus den Figuren 4 bis 9 zumindest im wesentlichen die Anordnung des Dehnmessstreifens 36. Letzterer ist auf ein elastisch verformbares Winkelblech 60 geklebt. Genauer gesagt weist das Winkelblech 60 einen Schenkel 62 sowie einen Schenkel 64, die durch einen Steg 66 miteinander verbunden sind. Die Schenkel 62 und 64 sind jeweils unter einem rechten Winkel zum Steg 66 angeordnet, wobei zwar die Abkantungs- bzw. Abwinklungslinien 68 und 70 zwar in derselben Ebene liegen, jedoch in einem Winkel von 90 ° zueinander. Insbesondere in der Figur 9 ist zu erkennen, dass der Schenkel 62 mit dem Gehäuseteil 34A durch eine Schraube 72 verbunden ist, während der Schenkel 64 mit dem Gehäuseteil 34B mittels einer Schraube 74 verbunden ist. Somit werden die Gehäuseteile 34A und 34B nur über das Winkelblech 60 miteinander verbunden. Die Gehäuseteile 34A und 34B sorgen wiederum durch die kraftschlüssige Verbindung mit den Längsholmen 16 und 18 für eine Vorspannung des Winkelbleches 60. Wenn im Falle einer Kollision eine mechanische Belastung der Tischplatte erfolgt, so wird diese an die Längsholme 16 und/oder 18 weitergegeben. Über die Gehäuseteile 34A und 34B erfolgt eine gute Kraftübertragung auf das Winkelblech 60, was wiederum über den Dehnmessstreifen 36 gut erfasst werden kann.Furthermore, results from the FIGS. 4 to 9 at least substantially the arrangement of the strain gauge 36. The latter is glued to an elastically deformable angle plate 60. More specifically, the angle plate 60 has a leg 62 and a leg 64 which are interconnected by a web 66. The legs 62 and 64 are each arranged at a right angle to the web 66, although the Abkantungs- or Abwinklungslinien 68 and 70, although in the same plane, but at an angle of 90 ° to each other. Especially in the FIG. 9 It can be seen that the leg 62 is connected to the housing part 34A by a screw 72, while the leg 64 is connected to the housing part 34B by means of a screw 74. Thus, the housing parts 34A and 34B are connected to each other only via the angle plate 60. The housing parts 34A and 34B in turn ensure by the frictional connection with the longitudinal beams 16 and 18 for a bias of the angle plate 60. If in the event of a collision, a mechanical load on the table top, it is passed to the longitudinal members 16 and / or 18. Via the housing parts 34A and 34B there is a good force transmission to the angle plate 60, which in turn can be detected well via the strain gauge 36.

Die Figuren 10 bis 13 geben einen weiteren Eindruck von der Gestaltung des Gehäuses 34, nämlich in Form von zwei Gehäuseteilen 34A und 34B, deren Verbindung nur durch das Winkelblech 60 und die Anordnung des Dehnmessstreifens im Bereich des Stegs 66 des Winkelbleches 60 erfolgt.The FIGS. 10 to 13 give a further impression of the design of the housing 34, namely in the form of two housing parts 34A and 34B, the connection is made only by the angle plate 60 and the arrangement of the strain gauge in the region of the web 66 of the angle plate 60.

Die Figuren 14 bis 22 zeigen Detailansichten teilweise im Schnitt von Tischen gemäß besonderen Ausführungsformen der vorliegenden Erfindung. Anders als bei der in den Figuren 1 bis 13 gezeigten Ausführungsform befindet sich der Dehnmessstreifen 36 nicht in einem Gehäuse. Es ist ein Kraftaufnehmer in Form eines Federkörpers 76 vorgesehen. Der Federkörper ist ein elastisch verformbares vorgespanntes Metallband, das sich quer zu den Längsholmen 16 und 18 erstreckt und mit seinen Enden mittels Schrauben 78 an den Längsholmen 16 bzw. 18 befestigt ist. In den Figuren 14 bis Figuren 22 weisen die Metallbänder unterschiedliche Gestalten auf und sind sie unterschiedlich, zum Beispiel horizontal oder vertikal, orientiert. Auch sind die Abkantungen bzw. Abwinklungen 80 in der gleichen (siehe Figuren 14 bis 20 sowie 22) oder in entgegengesetzten Richtungen (Figur 21) abgekantet bzw. abgewinkelt. Der Dehnmessstreifen 36 befindet sich jedoch immer mittig in Längserstreckung des Metallbandes.The FIGS. 14 to 22 show detail views partly in section of tables according to particular embodiments of the present invention. Unlike the one in the FIGS. 1 to 13 shown embodiment, the strain gauge 36 is not in a housing. It is a force transducer in the form of a spring body 76 is provided. The spring body is an elastically deformable prestressed metal band extending transversely to the Longitudinal beams 16 and 18 extends and is fastened with its ends by means of screws 78 to the longitudinal members 16 and 18, respectively. In the FIGS. 14 to 22 The metal bands have different shapes and they are different, for example, horizontal or vertical, oriented. Also, the bends or bends 80 in the same (see FIGS. 14 to 20 and 22) or in opposite directions ( FIG. 21 ) bevelled or angled. However, the strain gauge 36 is always centered in the longitudinal extent of the metal strip.

Wie für den Fachmann ersichtlich sein wird, kann anstelle der Kombination eines Kraftaufnehmers, insbesondere in Form eines Federkörpers, und eines Dehnmessstreifens, auch eine andere Einrichtung zur direkten oder indirekten Messung der mechanischen Belastung eines Tisches bzw. eines Tischgestells verwendet werden. Beispielsweise könnten auch piezoelektrische Elemente (Piezo-Kraftaufnehmer), Wägezellen, Zug- und/oder Druckmessdosen oder Einrichtungen zur elektromagnetischen Kompensation verwendet werden, solange dadurch eine Verbindung mit der Tischplatte nicht erforderlich ist.As will be apparent to those skilled in the art, instead of the combination of a force transducer, in particular in the form of a spring body, and a strain gauge, another means for directly or indirectly measuring the mechanical loading of a table or a table frame can be used. For example, piezoelectric elements (piezo force transducers), load cells, tensile and / or pressure cells or devices for electromagnetic compensation could be used, as long as this connection to the table top is not required.

Die in der vorstehenden Beschreibung, in den Zeichnungen sowie in den Ansprüchen offenbarten Merkmale der Erfindung können sowohl einzeln als auch in beliebigen Kombinationen für die Verwirklichung der Erfindung in ihren verschiedenen Ausführungformen wesentlich sein.The features of the invention disclosed in the foregoing description, in the drawings and in the claims may be essential both individually and in any combination for the realization of the invention in its various embodiments.

Claims (9)

Höhenverstellbares Tischgestell (12), insbesondere für einen Bürotisch, umfassend
mindestens zwei Längsholme (16, 18),
mindestens zwei Plattenträger (20, 22), an denen jeweils mindestens ein höhenverstellbares Tischbein (24, 26) angekoppelt ist, zu deren Verstellung jeweils eine Antriebseinheit (28, 30) vorgesehen ist,
eine Steuereinheit (32) zum Steuern der Antriebseinheiten (28, 30),
einen Kraftaufnehmer und
einen auf oder an dem Kraftaufnehmer angeordneten, mit der Steuereinheit (32) verbundenen Dehnmessstreifen (36) zum Liefern von Messsignalen, die von der mechanischen Belastung des Tischgestells (12) abhängig sind, an die Steuereinheit (32),
dadurch gekennzeichnet, dass
sich der Kraftaufnehmer vorzugsweise quer zu den beiden bzw. zwei Längsholmen (16, 18) erstreckt und mit diesen mechanisch gekoppelt ist, wobei der Dehnmessstreifen (36) vorzugsweise mittig bezogen auf die Längserstreckung des Kraftaufnehmers angeordnet ist.Height-adjustable table frame (12), in particular for an office table, comprising
at least two longitudinal spars (16, 18),
at least two plate carriers (20, 22), to each of which at least one height-adjustable table leg (24, 26) is coupled, for the adjustment of which in each case a drive unit (28, 30) is provided,
a control unit (32) for controlling the drive units (28, 30),
a load cell and
a strain gauge (36) disposed on or on the force transducer and connected to the control unit (32) for providing measurement signals dependent on the mechanical loading of the table frame (12) to the control unit (32);
characterized in that
the force transducer preferably transversely to the two or two longitudinal beams (16, 18) extends and is mechanically coupled thereto, wherein the strain gauge (36) is preferably arranged centrally relative to the longitudinal extent of the force transducer. Tischgestell (12) nach Anspruch 1, dadurch gekennzeichnet, dass der Kraftaufnehmer ein Federkörper (76), vorzugsweise in Band- oder Stabform, ist.Table frame (12) according to claim 1, characterized in that the force transducer is a spring body (76), preferably in ribbon or rod form. Tischgestell (12) nach Anspruch 2, dadurch gekennzeichnet, dass der Federkörper (76) mittels Schrauben (78) an den Längsholmen (16, 18) befestigt ist.Table frame (12) according to claim 2, characterized in that the spring body (76) by means of screws (78) on the longitudinal beams (16, 18) is attached. Tischgestell (12) nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass der Federkörper (76) ein, vorzugsweise bogenförmig vorgespanntes, Metallband ist.Table frame (12) according to claim 2 or 3, characterized in that the spring body (76) is a, preferably arcuately biased, metal strip. Tischgestell (12) nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass die Enden des Federkörpers (76) Abkantungen oder Abwinklungen aufweisen.Table frame (12) according to one of claims 2 to 4, characterized in that the ends of the spring body (76) have bends or angled portions. Tischgestell (12) nach Anspruch 1, dadurch gekennzeichnet, dass der Kraftaufnehmer ein elastisch verformbares Winkelblech (60) ist, das in einem Gehäuse (34) vorzugsweise aus Kunststoff angeordnet ist, das sich vorzugsweise quer zu den beiden bzw. zwei Längsholmen (16, 18) erstreckt und mit diesen kraftschlüssig verbunden ist.Table frame (12) according to claim 1, characterized in that the force transducer is an elastically deformable angle plate (60) which is preferably arranged in a housing (34) made of plastic, which preferably transversely to the two or two longitudinal bars (16, 18) extends and is positively connected thereto. Tischgestell (12) nach Anspruch 6, dadurch gekennzeichnet, dass das Gehäuse (34) zwei Gehäuseteile (34A, 34B) aufweist, wobei eines (34A) der beiden Gehäuseteile (34A, 34B) mit einem (16) der beiden Längsholme (16, 18) kraftschlüssig verbunden ist und das andere (34B) der beiden Gehäuseteile (34A, 34B) mit dem anderen (18) der beiden Längsholme (16, 18) kraftschlüssig verbunden ist, und das Winkelblech (60) zwei Schenkel (62, 64) und einen diese verbindenden Steg (66) aufweist, wobei einer (62) der beiden Schenkel (62, 64) mit einem (34A) der beiden Gehäuseteile (34A, 34B) und der andere (64) der beiden Schenkel (62, 64) mit dem anderen (34B) der beiden Gehäuseteile (34A, 34B) verbunden ist.Table frame (12) according to claim 6, characterized in that the housing (34) comprises two housing parts (34A, 34B), wherein one (34A) of the two housing parts (34A, 34B) with one (16) of the two longitudinal beams (16, 18) is non-positively connected and the other (34B) of the two housing parts (34A, 34B) with the other (18) of the two longitudinal beams (16, 18) is non-positively connected, and the angle plate (60) has two legs (62, 64) and a web (66) connecting them, one (62) of the two legs (62, 64) having one (34A) of the two housing parts (34A, 34B) and the other (64) of the two legs (62, 64) is connected to the other (34B) of the two housing parts (34A, 34B). Tischgestell (12) nach Anspruch 6 oder 7, dadurch gekennzeichnet, dass das Gehäuse (34) über zwei federbelastete Bolzen (52) mit Pilzköpfen (54), die vorzugsweise über jeweils einen Exzenterspannhebel (56) in einer jeweiligen Schlüsselloch-Bohrung (46, 48) in den Längsholmen (16, 18) an selbigen verriegelbar sind, mit den Längsholmen (16, 18) kraftschlüssig verbindbar ist.Table frame (12) according to claim 6 or 7, characterized in that the housing (34) via two spring-loaded bolts (52) with mushroom heads (54), preferably via in each case a Exzenterspannhebel (56) in a respective keyhole bore (46, 48) in the Longitudinal members (16, 18) are lockable to the same, with the longitudinal beams (16, 18) is non-positively connected. Tisch (10), insbesondere Bürotisch (10), umfassend ein Tischgestell (12) nach einem der vorangehenden Ansprüche sowie eine auf dem Tischgestell (12) getragene und damit verbundene Tischplatte(14).Table (10), in particular office table (10), comprising a table frame (12) according to one of the preceding claims and a tabletop (14) supported on the table frame (12) and connected thereto.
EP20120001049 2011-03-10 2012-02-17 Height-adjustable desk frame, in particular for an office desk, and desk with same Not-in-force EP2497386B1 (en)

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