EP0460685A1 - Vertically adjustable table - Google Patents

Vertically adjustable table Download PDF

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Publication number
EP0460685A1
EP0460685A1 EP91109327A EP91109327A EP0460685A1 EP 0460685 A1 EP0460685 A1 EP 0460685A1 EP 91109327 A EP91109327 A EP 91109327A EP 91109327 A EP91109327 A EP 91109327A EP 0460685 A1 EP0460685 A1 EP 0460685A1
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EP
European Patent Office
Prior art keywords
frame
base frame
legs
upper frame
leg
Prior art date
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Granted
Application number
EP91109327A
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German (de)
French (fr)
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EP0460685B1 (en
Inventor
Theodorus Johannes Jacobus Groothuizen
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LANDMARK BV
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LANDMARK BV
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Publication of EP0460685A1 publication Critical patent/EP0460685A1/en
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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B9/00Tables with tops of variable height
    • A47B9/12Tables with tops of variable height with flexible height-adjusting means, e.g. rope, chain
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B9/00Tables with tops of variable height
    • A47B9/04Tables with tops of variable height with vertical spindle

Definitions

  • the invention relates to a height-adjustable table with a standing on the floor, at least one pair of table legs, and a height-adjustable, a table plot and telescopic table legs with respect to the table legs of the underframe, wherein a height adjustment device is arranged between the underframe and the top frame and for uniform telescoping of the table legs is provided an essentially mirror-image double cable guide using pulleys freely rotatable about horizontal axes.
  • a height-adjustable table of this type is known from DE-OS 14 29 534. It has an underframe standing on the floor, which consists of two table legs in the form of a pair of table legs, which are connected to one another by a hollow cross member. A table top of an upper frame is mounted on the base frame for height adjustment. For this purpose, the table top has table legs on the underside, which are telescopic in the table legs of the underframe. In order to be able to telescope the upper frame evenly with respect to the lower frame with horizontal alignment of the table top at all times, an essentially mirror-image double cable guide is provided.
  • the height adjustment device between the base frame and the upper frame consists of a spring accumulator, which is arranged between the two cable guides.
  • the cross strut between the table legs of the underframe is disadvantageous because it can be annoying and can restrict the legroom. It is particularly disadvantageous that the spring accumulator is arranged within the cross strut and takes up a relatively large amount of space.
  • the object of the invention is to further develop the known height-adjustable table in such a way that the cross strut between the table legs of the base frame can be dispensed with.
  • each of the two cable guides each have two deflection rollers arranged on the upper frame in the upper region of the two table legs at the table top, as well as a deflection roller arranged at the lower end of the telescopic table leg of the upper frame and a tensioned rope, which is attached to the upper end of the table leg of the base frame, which is assigned to the table leg of the upper frame with the deflection roller at the lower end, and which is further guided around the lower deflection roller of the telescopic table leg, in order to then guide it over the two upper deflection rollers of the upper frame and finally it back down to where it is attached to the other table leg of the base.
  • the two ropes of the double cable guide between the upper pulleys of the upper frame preferably run either directly below the table top or within the table top. This has the advantage that the ropes of the double cable guide do not interfere at all and are also not visible.
  • the height adjustment device between the lower frame and the upper frame is preferably a spindle.
  • a spindle With such a spindle, a height adjustment of the table top is possible in a technically very simple and reliable manner.
  • the spindle is preferably actuated by means of a crank.
  • the ropes can be round steel ropes, for example.
  • the ropes are tapes made of plastic and preferably consist of aramide, polyethylene, carbon, glass or ceramic fibers.
  • plastic tapes especially if they are made of aramid fibers, have the advantage that they are light, maintenance-free and low in noise when adjusting the height of the table. Since they also have low frictional resistance with the deflection rollers, especially if they are also made of plastic, easy height adjustment is achieved. Farther can be achieved with the plastic straps compared to steel cables a small bending radius, so that the space required for installation can be very small. After all, the plastic straps are free of stretch after they have been put under tension.
  • an exact parallel guidance is achieved when telescoping, so that the table top is always horizontally aligned and completely stable. The horizontal alignment of the table top is maintained even when it is heavily loaded.
  • Aramid fibers are preferably used for the plastic tapes. These are characterized by a very strong molecular orientation in one direction and are very tear-resistant depending on the number of fibers used.
  • the tapes are preferably woven, the fibers being pulled in parallel by the tension if an elongation of less than 0.5% occurs under higher loads.
  • the use of plastic straps, in particular made of aramid fibers, is not in itself limited to use with the height adjustment device according to the invention. They can also be used for other constructions for height-adjustable tables and are a separate invention in themselves.
  • the fiber materials mentioned are not by clamping or to attach similar friction principles to the table frame. Even bolts or similar fasteners cannot be used due to the low friction coefficients of the materials. For this reason, it is proposed in a further development of the plastic straps that in order to fasten these straps to the base frame, the strap ends are each cast with a block of plastic. This creates a possibility with which the strap ends can be securely attached to the underframe, since the plastic block impregnates the (woven) fibers of the strap ends, so that a firm hold is created between the plastic block and the strap. The plastic block can then be easily attached to the base using known techniques. Pouring the ends of the tape has the further advantage that the fibers of the tapes are evenly loaded.
  • the plastic for encapsulating the tape ends is preferably an epoxy resin or a polyester resin.
  • a tensioning device is arranged between the one band end and the underframe.
  • This tensioning device has the advantage that the respective band can be brought into its tensioned state in a technically simple manner.
  • the tensioning device preferably consists of a threaded rod connected to the band in the direction of its longitudinal extent with a tensioning screw supported on the base frame. This allows actuation of the tensioning device in a technically very simple manner.
  • a height-adjustable table consists of a base frame 1 and an upper frame 2 with a horizontal table top 3.
  • the upper frame 2 with its table top 3 is height-adjustable relative to the base frame 1, with a height adjustment device 4 being provided between these elements for this purpose.
  • the underframe 1 has two table legs 5, 6, which together form a pair of table legs.
  • table legs 5 ', 6' of the upper frame 2 are telescopic, these table legs 5 ', 6' being arranged on the underside of the table top 3.
  • the height adjustment device 4 is formed by a spindle 7 with a crank 8. The upper end of the spindle 7 is supported in the table top 3, while the thread of the spindle 7 is guided in an internal thread which is formed in a projection 9 of the table leg 5 of the base frame 1.
  • an essentially mirror-image double cable pull guide is formed between the lower frame 1 and the upper frame 2.
  • deflection rollers 10a, 10b and 11a, 11b which are freely rotatable about horizontal axes are arranged in the upper region of the table legs 5 ', 6' below the table top 3.
  • deflection rollers 10c and 11c are arranged at the lower ends of the table legs 5 ', 6'. These can also be freely rotated around a horizontal axis.
  • the deflection rollers are preferably made of plastic.
  • the deflection rollers 10a, 10b, 10c and 11a, 11b, 11c are two ropes in the form of bands 12a, 12b made of plastic and in particular made of aramide and attached to the end of the table legs 5,6 of the base 1.
  • the ends of the tape are each cast with a block 13 made of epoxy resin or polyester resin.
  • the block 13 In the area of the upper end of the right table leg 6 of the underframe 1, the block 13 is provided with a through-hole, through which a bolt 14 is inserted and screwed onto the table leg 6.
  • the band 12a is then guided around the lower deflecting roller 10c in order to then run upwards in the opposite direction to the deflecting roller 10b.
  • the belt 12a is then guided parallel below the table top 3 via this and the deflection roller 10a, in order to be guided down again in the region of the left table legs 5,5 ', where the other end of the belt 12a is attached to a projection by means of a tensioning device 15 16 is fastened within the table leg 5 of the underframe 1.
  • the block 13 of this band end is received in a U-profile 17 and secured by means of a bolt 18.
  • the U-profile 17 is provided on the underside with a threaded rod 19 which projects through an opening in the projection 16.
  • a clamping screw 20 is screwed onto the threaded rod 19. By appropriately tightening this tensioning screw 20, the band 12a can be tensioned.
  • the other band 12b is in a corresponding mirror image guided around the deflection rollers 11a, 11b, 11c and fastened accordingly.
  • the crank 8 of the spindle 7 is rotated accordingly.
  • the table legs 5,5 'of the lower and upper frame 1,2 are telescoped accordingly.
  • the double cable guide ensures that the table legs 6, 6 'on the right-hand side are telescoped accordingly, so that the table top 3 is always horizontally aligned without jamming.

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  • Tables And Desks Characterized By Structural Shape (AREA)
  • Machine Tool Units (AREA)
  • Legs For Furniture In General (AREA)

Abstract

The invention relates to a vertically adjustable table, having an understructure (1) standing on the floor and an upper structure (2) which is vertically adjustable relative to said understructure and has a table top (3), a vertical adjustment device (4) being arranged between the understructure (1) and the upper structure (2), and an essentially mirror-inverted double cable pull guide being provided for even telescopability. In order to provide a vertically adjustable table without a cross-strut between the table legs, it is proposed that two of the cable pull guides each have two deflection rollers (10a, 10b; 11a, 11b), arranged on the upper structure (2) in the upper region of the legs (5', 6') near to the table top (3), and furthermore a deflection roller (10c, 11c), arranged at the lower end of the one telescopic leg (5', 6') of the upper structure (2), and a tensioned cable (band 12a, 12b) which is attached to the upper end of that leg (5, 6) of the understructure which is assigned to the leg (5', 6') of the upper structure (2) with the deflection roller (10c, 11c) at the lower end, and which is furthermore guided around the lower deflection roller (10c, 11c) of the telescopic leg (5', 6'). <IMAGE>

Description

Die Erfindung betrifft einen höhenverstellbaren Tisch mit einem auf dem Boden stehenden, wenigstens ein Tischbeinpaar aufweisendes Untergestell und einem dazu höhenverstellbaren, eine Tischplotte sowie bezüglich der Tischbeine des Untergestells teleskopierbare Tischbeine aufweisenden Obergestell, wobei zwischen dem Untergestell und dem Obergestell eine Höhenverstelleinrichtung angeordnet ist und wobei zur gleichmäßigen Teleskopierbarkeit der Tischbeine eine im wesentlichen spiegelbildliche Doppelseilzugführung unter Verwendung von um horizontale Achsen frei drehbare Umlenkrollen vorgesehen ist.The invention relates to a height-adjustable table with a standing on the floor, at least one pair of table legs, and a height-adjustable, a table plot and telescopic table legs with respect to the table legs of the underframe, wherein a height adjustment device is arranged between the underframe and the top frame and for uniform telescoping of the table legs is provided an essentially mirror-image double cable guide using pulleys freely rotatable about horizontal axes.

Ein höhenverstellbarer Tisch dieser Art ist aus der DE-OS 14 29 534 bekannt. Er weist ein auf dem Boden stehendes Untergestell auf, welches aus zwei Tischbeinen in Form eines Tischbeinpaares besteht, welche durch einen hohlen Querträger miteinander verbunden sind. Auf dem Untergestell ist höhenverstellbar eine Tischplatte eines Obergestells gelagert. Zu diesem Zweck weist die Tischplatte unterseitig Tischbeine auf, die in den Tischbeinen des Untergestells teleskopierbar sind. Um das Obergestell bezüglich zum Untergestell bei jederzeit horizontaler Ausrichtung der Tischplatte gleichmäßig teleskopieren zu können, ist eine im wesentlichen spiegelbildliche Doppelseilzugführung vorgesehen. Zu diesem Zweck sind in dem Querträger des Untergestells um horizontale Achsen frei drehbare Umlenkrollen gelagert, um die herum Seile S-förmig geführt sind, welche endseitig einerseits am unteren Ende und andererseits am oberen Ende der teleskopierbaren Tischbeine des Obergestells befestigt sind. Die Höhenverstelleinrichtung zwischen dem Untergestell und dem Obergestell besteht aus einem Federspeicher, der zwischen den beiden Seilzugführungen angeordnet ist.A height-adjustable table of this type is known from DE-OS 14 29 534. It has an underframe standing on the floor, which consists of two table legs in the form of a pair of table legs, which are connected to one another by a hollow cross member. A table top of an upper frame is mounted on the base frame for height adjustment. For this purpose, the table top has table legs on the underside, which are telescopic in the table legs of the underframe. In order to be able to telescope the upper frame evenly with respect to the lower frame with horizontal alignment of the table top at all times, an essentially mirror-image double cable guide is provided. For this purpose are in the cross member of the base Diverter rollers freely rotatable about horizontal axes, around which ropes are guided in an S-shape, which are attached on the one hand at the lower end and on the other hand to the upper end of the telescopic table legs of the upper frame. The height adjustment device between the base frame and the upper frame consists of a spring accumulator, which is arranged between the two cable guides.

Bei diesem bekannten höhenverstellbaren Tisch ist die Querstrebe zwischen den Tischbeinen des Untergestells nachteilig, da sie störend sein kann und die Beinfreiheit einengen kann. Dabei macht sich insbesondere nachteilig bemerkbar, daß der Federspeicher innerhalb der Querstrebe angeordnet ist und relativ viel Platz beansprucht.In this known height-adjustable table, the cross strut between the table legs of the underframe is disadvantageous because it can be annoying and can restrict the legroom. It is particularly disadvantageous that the spring accumulator is arranged within the cross strut and takes up a relatively large amount of space.

Davon ausgehend liegt der Erfindung die Aufgabe zugrunde, den bekannten höhenverstellbaren Tisch derart weiterzuentwickeln, daß auf die Querstrebe zwischen den Tischbeinen des Untergestells verzichtet werden kann.Based on this, the object of the invention is to further develop the known height-adjustable table in such a way that the cross strut between the table legs of the base frame can be dispensed with.

Als technische Lösung wird mit der Erfindung vorgeschlagen, daß jede der beiden Seilzugführungen jeweils zwei am Obergestell im oberen Bereich der beiden Tischbeine bei der Tischplatte angeordnete Umlenkrollen sowie weiterhin eine am unteren Ende des einen teleskopierbaren Tischbeines des Obergestells angeordnete Umlenkrolle und ein gespanntes Seil aufweist, welches am oberen Ende desjenigen Tischbeines des Untergestells befestigt ist, welches den Tischbein des Obergestells mit der Umlenkrolle am unteren Ende zugeordnet ist, und welches weiterhin um die untere Umlenkrolle des teleskopierbaren Tischbeines herum geführt ist, um es anschließend über die beiden oberen Umlenkrollen des Obergestells zu führen und um es schließlich wieder nach unten zu führen, wo es am anderen Tischbein des Untergestells befestigt ist.As a technical solution , the invention proposes that each of the two cable guides each have two deflection rollers arranged on the upper frame in the upper region of the two table legs at the table top, as well as a deflection roller arranged at the lower end of the telescopic table leg of the upper frame and a tensioned rope, which is attached to the upper end of the table leg of the base frame, which is assigned to the table leg of the upper frame with the deflection roller at the lower end, and which is further guided around the lower deflection roller of the telescopic table leg, in order to then guide it over the two upper deflection rollers of the upper frame and finally it back down to where it is attached to the other table leg of the base.

Auf diese Weise ist ein höhenverstellbarer Tisch geschaffen, der ohne die Verwendung einer Querstrebe zwischen den Tischbeinen des Untergestells auskommt. Dadurch wird eine optimale Bewegungsfreiheit für die Beine unterhalb des Tisches geschaffen.In this way, a height-adjustable table is created which does not require the use of a cross strut between the table legs of the base frame. This creates optimal freedom of movement for the legs below the table.

Dabei verlaufen vorzugsweise die beiden Seile der Doppelseilzugführung zwischen den oberen Umlenkrollen des Obergestells jeweils entweder direkt unterhalb der Tischplatte oder innerhalb der Tischplatte. Dies bringt den Vorteil mit sich, daß die Seile der Doppelseilzugführung überhaupt nicht stören und auch nicht sichtbar sind.The two ropes of the double cable guide between the upper pulleys of the upper frame preferably run either directly below the table top or within the table top. This has the advantage that the ropes of the double cable guide do not interfere at all and are also not visible.

Vorzugsweise ist in einer Weiterbildung die Höhenverstelleinrichtung zwischen dem Untergestell und dem Obergestell eine Spindel. Mittels einer derartigen Spindel ist auf technisch sehr einfache und zuverlässige Weise eine Höhenverstellung der Tischplatte möglich. Betätigt wird die Spindel dabei vorzugsweise mittels einer Kurbel.In one development, the height adjustment device between the lower frame and the upper frame is preferably a spindle. With such a spindle, a height adjustment of the table top is possible in a technically very simple and reliable manner. The spindle is preferably actuated by means of a crank.

Die Seile können beispielsweise runde Stahlseile sein. In einer bevorzugten Weiterbildung sind die Seile jedoch Bänder aus Kunststoff und bestehen vorzugsweise aus Aramide-, Polyäthylen-, Kohlenstoff-, Glas- oder Keramikfasern. Derartige Kunststoffbänder, insbesondere wenn sie aus Aramidefasern bestehen, haben den Vorteil, daß sie leicht, wartungsfrei und bei der Höhenverstellung des Tisches geräuscharm sind. Da sie darüber hinaus einen geringen Reibungswiderstand mit den Umlenkrollen besitzen, insbesondere wenn diese ebenfalls aus Kunststoff bestehen, erzielt man eine leicht gehende Höhenverstellbarkeit. Weiterhin läßt sich mit den Kunststoffbändern im Vergleich zu Stahlseilen ein kleiner Biegeradius erzielen, so daß der für den Einbau benötigte Platz sehr gering sein kann. Schließlich sind die Kunststoffbänder dehnungsfrei, nachdem sie unter Spannung gesetzt worden sind. In der Praxis sieht dies so aus, daß die Bänder zunächst derart gedehnt werden, daß eine maximale Dehnung mit einer maximalen Vorspannung hergestellt ist, so daß die Bänder im gespannten Zustand völlig unelastisch sind und man eine unveränderliche Bandlänge erhält. Auf diese Weise wird eine exakte Parallelführung beim Teleskopieren erreicht, so daß die Tischplatte jederzeit horizontal ausgerichtet und vollkommen stabil ist. Die horizontale Ausrichtung der Tischplatte wird auch dann beibehalten, wenn diese stark belastet wird. Insgesamt läßt sich mittels des erfindungsgemäßen Verstellmechanismus unter Verwendung von Kunststoffbändern ein technisch sehr einfacher und preiswerter höhenverstellbarer Tisch herstellen, welcher zuverlässig arbeitet.The ropes can be round steel ropes, for example. In a preferred development, however, the ropes are tapes made of plastic and preferably consist of aramide, polyethylene, carbon, glass or ceramic fibers. Such plastic tapes, especially if they are made of aramid fibers, have the advantage that they are light, maintenance-free and low in noise when adjusting the height of the table. Since they also have low frictional resistance with the deflection rollers, especially if they are also made of plastic, easy height adjustment is achieved. Farther can be achieved with the plastic straps compared to steel cables a small bending radius, so that the space required for installation can be very small. After all, the plastic straps are free of stretch after they have been put under tension. In practice, this means that the straps are first stretched in such a way that maximum stretch is produced with a maximum pretension, so that the straps are completely inelastic in the tensioned state and an unchangeable strap length is obtained. In this way, an exact parallel guidance is achieved when telescoping, so that the table top is always horizontally aligned and completely stable. The horizontal alignment of the table top is maintained even when it is heavily loaded. Overall, by means of the adjustment mechanism according to the invention using plastic straps, a technically very simple and inexpensive height-adjustable table can be produced, which works reliably.

Bevorzugt werden für die Kunststoffbänder Aramidefasern verwendet. Diese zeichnen sich durch eine sehr starke molekulare Ausrichtung in einer Richtung aus und sind in Abhängigkeit von der verwendeten Anzahl von Fasern sehr reißfest. Dabei werden die Bänder vorzugsweise gewoben, wobei durch die Spannung die Fasern parallelgezogen werden, wenn bei höherer Belastung eine Dehnung von weniger als 0,5% auftritt. Die Verwendung von Kunststoffbändern insbesondere aus Aramidefasern ist nicht an sich auf die Verwendung bei der erfindungsgemäßen Höhenverstelleinrichtung beschränkt. Sie sind gleichermaßen für andere Konstruktionen für höhenverstellbare Tische einsetzbar und stellen für sich gesehen eine eigene Erfindung dar.Aramid fibers are preferably used for the plastic tapes. These are characterized by a very strong molecular orientation in one direction and are very tear-resistant depending on the number of fibers used. The tapes are preferably woven, the fibers being pulled in parallel by the tension if an elongation of less than 0.5% occurs under higher loads. The use of plastic straps, in particular made of aramid fibers, is not in itself limited to use with the height adjustment device according to the invention. They can also be used for other constructions for height-adjustable tables and are a separate invention in themselves.

Die genannten Fasermaterialien sind nicht durch Klemmung oder ähnliche Reibungsprinzipien am Tischgestell zu befestigen. Auch Bolzen oder ähnliche Befestigungsmittel sind durch die geringen Reibungskoeffizienten der Materialien nicht verwendbar. Aus diesem Grunde wird in einer Weiterbildung der Kunststoffbänder vorgeschlagen, daß zum Befestigen dieser Bänder am Untergestell die Bandenden jeweils mit einem Block aus Kunststoff umgossen sind. Dadurch wird eine Möglichkeit geschaffen, mit der die Bandenden sicher am Untergestell befestigt werden können, da der Kunststoffblock die (gewobenen) Fasern der Bandenden durchtränkt, so daß ein fester Halt zwischen dem Kunststoffblock und dem Band geschaffen ist. Der Kunststoffblock kann dann mittels bekannter Techniken ohne weiteres am Untergestell befestigt werden. Das Umgießen der Bandenden hat weiterhin den Vorteil, daß die Fasern der Bänder gleichmäßig belastet werden.The fiber materials mentioned are not by clamping or to attach similar friction principles to the table frame. Even bolts or similar fasteners cannot be used due to the low friction coefficients of the materials. For this reason, it is proposed in a further development of the plastic straps that in order to fasten these straps to the base frame, the strap ends are each cast with a block of plastic. This creates a possibility with which the strap ends can be securely attached to the underframe, since the plastic block impregnates the (woven) fibers of the strap ends, so that a firm hold is created between the plastic block and the strap. The plastic block can then be easily attached to the base using known techniques. Pouring the ends of the tape has the further advantage that the fibers of the tapes are evenly loaded.

Vorzugsweise ist der Kunststoff zum Umgießen der Bandenden ein Epoxyharz oder ein Polyesterharz.The plastic for encapsulating the tape ends is preferably an epoxy resin or a polyester resin.

In einer Weiterbildung wird weiterhin vorgeschlagen, daß zwischen dem einen Bandende und dem Untergestell eine Spannvorrichtung angeordnet ist. Diese Spannvorrichtung bringt den Vorteil mit sich, daß auf technisch einfache Weise das jeweilige Band in seinen Spannungszustand versetzt werden kann. Vorzugsweise besteht die Spannvorrichtung dabei aus einer mit dem Band in Richtung dessen Längserstreckung verbundene Gewindestange mit einer am Untergestell sich abstützenden Spannschraube. Dadurch ist auf technisch sehr einfache Weise eine Betätigung der Spanneinrichtung möglich.In a further development it is further proposed that a tensioning device is arranged between the one band end and the underframe. This tensioning device has the advantage that the respective band can be brought into its tensioned state in a technically simple manner. The tensioning device preferably consists of a threaded rod connected to the band in the direction of its longitudinal extent with a tensioning screw supported on the base frame. This allows actuation of the tensioning device in a technically very simple manner.

Eine Ausführungsform eines höhenverstellbaren Tisches wird nachfolgend anhand der Zeichnungen beschrieben. In diesen zeigt:

Fig. 1
eine schematische Schnittdarstellung eines höhenvarstellbaren Tisches;
Fig. 2
einen schematisierten Detailausschnitt der Befestigungs- und Spanneinrichtung des Bandes.
An embodiment of a height-adjustable table is described below with reference to the drawings. In these shows:
Fig. 1
is a schematic sectional view of a height-adjustable table;
Fig. 2
a schematic detail of the fastening and tensioning device of the band.

Ein höhenverstellberer Tisch besteht aus einem Untergestell 1 sowie aus einem Obergestell 2 mit einer horizontalen Tischplatte 3. Das Obergestell 2 mit seiner Tischplatte 3 ist dabei gegenüber dem Untergestell 1 höhenverstellbar, wobei zu diesem Zweck zwischen diesen Elementen eine Höhenverstelleinrichtung 4 Vorgesehen ist.A height-adjustable table consists of a base frame 1 and an upper frame 2 with a horizontal table top 3. The upper frame 2 with its table top 3 is height-adjustable relative to the base frame 1, with a height adjustment device 4 being provided between these elements for this purpose.

Das Untergestell 1 weist zwei Tischbeine 5,6 auf, die zusammen ein Tischbeinpaar bilden. In diesen Tischbeinen 5,6 sind Tischbeine 5',6' des Obergestells 2 teleskopierbar, wobei diese Tischbeine 5',6' an der Unterseite der Tischplatte 3 angeordnet sind. In Fig. 1 ist zu erkennen, daß die Höhenverstelleinrichtung 4 durch eine Spindel 7 mit einer Kurbel 8 gebildet ist. Dabei ist das obere Ende der Spindel 7 in der Tischplatte 3 abgestützt, während das Gewinde der Spindel 7 in einem Innengewinde geführt ist, welches in einem Vorsprung 9 des Tischbeins 5 des Untergestells 1 ausgebildet ist.The underframe 1 has two table legs 5, 6, which together form a pair of table legs. In these table legs 5,6 table legs 5 ', 6' of the upper frame 2 are telescopic, these table legs 5 ', 6' being arranged on the underside of the table top 3. In Fig. 1 it can be seen that the height adjustment device 4 is formed by a spindle 7 with a crank 8. The upper end of the spindle 7 is supported in the table top 3, while the thread of the spindle 7 is guided in an internal thread which is formed in a projection 9 of the table leg 5 of the base frame 1.

Um das Obergestell 2 gleichmäßig und ohne zu verkanten gegenüber dem Untergestell 1 in seiner Höhe verstellen zu können, ist zwischen dem Untergestell 1 und dem Obergestell 2 eine im wesentlichen spiegeibildliche Doppelseilzugführung ausgebildet. Zu diesem Zweck sind im oberen Bereich der Tischbeine 5',6' unterhalb der Tischplatte 3 um horizontale Achsen frei drehbare Umlenkrollen 10a, 10b sowie 11a,11b angeordnet. Weiterhin sind an den unteren Enden der Tischbeine 5',6' zwei weitere Umlenkrollen 10c und 11c angeordnet. Auch diese sind jeweils um eine horizontale Achse frei drehbar. Die Umlenkrollen bestehen dabei vorzugsweise aus Kunststoff.In order to be able to adjust the height of the upper frame 2 uniformly and without tilting relative to the lower frame 1, an essentially mirror-image double cable pull guide is formed between the lower frame 1 and the upper frame 2. For this purpose, deflection rollers 10a, 10b and 11a, 11b which are freely rotatable about horizontal axes are arranged in the upper region of the table legs 5 ', 6' below the table top 3. Furthermore, at the lower ends of the table legs 5 ', 6' there are two further deflection rollers 10c and 11c arranged. These can also be freely rotated around a horizontal axis. The deflection rollers are preferably made of plastic.

Um die Umlenkrollen 10a,10b,10c und 11a,11b,11c sind zwei Seile in Form von Bändern 12a,12b aus Kunststoff und dabei insbesondere aus Aramide geführt und endseitig an den Tischbeinen 5,6 des Untergestells 1 befestigt. Zu diesem Zweck sind die Bandenden jeweils mit einem Block 13 aus Epoxyharz oder Polyesterharz umgossen.Around the deflection rollers 10a, 10b, 10c and 11a, 11b, 11c are two ropes in the form of bands 12a, 12b made of plastic and in particular made of aramide and attached to the end of the table legs 5,6 of the base 1. For this purpose, the ends of the tape are each cast with a block 13 made of epoxy resin or polyester resin.

Im Bereich des oberen Endes des rechten Tischbeines 6 des Untergestells 1 ist der Block 13 mit einer Durchbohrung versehen, durch die hindurch ein Bolzen 14 hindurchgesteckt und am Tischbein 6 festgeschraubt ist. Das Band 12a ist dann um die untere Umlenkrolle 10c herum geführt, um anschließend in entgegengesetzter Richtung hoch zur Umlenkrolle 10b zu verlaufen. Über diese sowie über die Umlenkrolle 10a ist das Band 12a dann parallel unterhalb der Tischplatte 3 geführt, um im Bereich der linken Tischbeine 5,5' wieder nach unten geführt zu werden, wo das andere Ende des Bandes 12a mittels einer Spannvorrichtung 15 an einem Vorsprung 16 innerhalb des Tischbeines 5 des Untergestells 1 befestigt ist. Zu diesem Zweck ist der Block 13 dieses Bandendes in einem U-Profil 17 aufgenommen und mittels eines Bolzens 18 gesichert. Das U-Profil 17 ist unterseitig mit einer Gewindestange 19 versehen, die durch eine Durchbrechung im Vorsprung 16 hindurchragt. Auf der anderen Seite des Vorsprungs 16 ist eine Spannschraube 20 auf die Gewindestange 19 aufgeschraubt. Durch entsprechendes Anziehen dieser Spannschraube 20 kann das Band 12a gespannt werden.In the area of the upper end of the right table leg 6 of the underframe 1, the block 13 is provided with a through-hole, through which a bolt 14 is inserted and screwed onto the table leg 6. The band 12a is then guided around the lower deflecting roller 10c in order to then run upwards in the opposite direction to the deflecting roller 10b. The belt 12a is then guided parallel below the table top 3 via this and the deflection roller 10a, in order to be guided down again in the region of the left table legs 5,5 ', where the other end of the belt 12a is attached to a projection by means of a tensioning device 15 16 is fastened within the table leg 5 of the underframe 1. For this purpose, the block 13 of this band end is received in a U-profile 17 and secured by means of a bolt 18. The U-profile 17 is provided on the underside with a threaded rod 19 which projects through an opening in the projection 16. On the other side of the projection 16, a clamping screw 20 is screwed onto the threaded rod 19. By appropriately tightening this tensioning screw 20, the band 12a can be tensioned.

Das andere Band 12b ist in entsprechend spiegelbildlicher Weise um die Umlenkrollen 11a,11b,11c geführt und entsprechend befestigt.The other band 12b is in a corresponding mirror image guided around the deflection rollers 11a, 11b, 11c and fastened accordingly.

Zum Verstellen der Höhe der Tischplatte 3 wird die Kurbel 8 der Spindel 7 entsprechend gedreht. Dadurch werden die Tischbeine 5,5' des Unter- und Obergestells 1,2 entsprechend teleskopiert. Die Doppelseilzugführung gewährleistet dabei, daß die Tischbeine 6,6' auf der rechten Seite entsprechend teleskopiert werden, so daß die Tischplatte 3 jederzeit horizontal ausgerichtet ist, ohne daß es zu Verkantungen kommt.To adjust the height of the table top 3, the crank 8 of the spindle 7 is rotated accordingly. As a result, the table legs 5,5 'of the lower and upper frame 1,2 are telescoped accordingly. The double cable guide ensures that the table legs 6, 6 'on the right-hand side are telescoped accordingly, so that the table top 3 is always horizontally aligned without jamming.

BezugszeichenlisteReference symbol list

11
UntergestellUnderframe
22nd
ObergestellTop frame
33rd
TischplatteTable top
44th
HöhenverstelleinrichtungHeight adjustment device
5, 5'5, 5 '
TischbeinTable leg
6, 6'6, 6 '
TischbeinTable leg
77
Spindelspindle
88th
Kurbelcrank
99
Vorsprunghead Start
10a, 10b, 10c10a, 10b, 10c
UmlenkrollePulley
11a, 11b, 11c11a, 11b, 11c
UmlenkrollePulley
12a, 12b12a, 12b
Bandtape
1313
Blockblock
1414
Bolzenbolt
1515
SpannvorrichtungJig
1616
Vorsprunghead Start
1717th
U-ProfilU profile
1818th
Bolzenbolt
1919th
GewindestangeThreaded rod
2020th
SpannschraubeClamping screw

Claims (10)

Höhenverstellbarer Tisch
mit einen auf dem Boden stehenden, wenigstens ein Tischbeinpaar (5,6) aufweisendes Untergestell (1) und einem dazu höhenverstellbaren, eine Tischplatte (3) sowie bezüglich der Tischbeine (5,6) des Untergestells (1) teleskopierbare Tischbeine (5',6') aufweisenden Obergestell (2),
wobei zwischen dem Untergestell (1) und dem Obergestell (2) eine Höhenverstelleinrichtung (4) angeordnet ist und
wobei zur gleichmäßigen Teleskopierbarkeit der Tischbeine (5,5';6,6') eine im wesentlichen spiegelbildliche Doppelseilzugführung unter Verwendung von um horizontale Achsen frei drehbare Umlenkrollen (10a,10b,10c;11a,11b,11c) vorgesehen ist,
dadurch gekennzeichnet,
daß jede der beiden Seilzugführungen jeweils zwei am Obergestell (2) im oberen Bereich der beiden Tischbeine (5',6') bei der Tischplatte (3) angeordnete Umlenkrollen (10a,10b;11a,11b) sowie weiterhin eine am unteren Ende des einen teleskopierbaren Tischbeines (5',6') des Obergestells (2) angeordnete Umlenkrolle (10c,11c) und ein gespanntes Seil (Band 12a,12b) aufweist,
welches am oberen Ende desjenigen Tischbeines (5,6) des Untergestells (1) befestigt ist, welches dem Tischbein (5',6') des Obergestells (2) mit der Umlenkrolle (10c,11c) am unteren Ende zugeorndet ist, und welches weiterhin um die untere Umlenkrolle (10c,11c) des teleskopierbaren Tischbeines (5',6') herum geführt ist, um es anschließend über die beiden oberen Umlenkrollen (10a,10b;11a,11b) des Obergastells (2) zu führen und um es schließlich wieder nach unten zu führen, wo es am anderen Tischbein (5,6) des Untergestells (1) befestigt ist.
Height adjustable table
With a base frame (1) standing on the floor and having at least one pair of table legs (5, 6) and a height-adjustable base frame, a table top (3) and table legs (5 ') telescopic with respect to the table legs (5, 6) of the base frame (1) 6 ') having an upper frame (2),
wherein a height adjustment device (4) is arranged between the base frame (1) and the upper frame (2) and
wherein the table legs (5,5 ';6,6') can be telescoped evenly, an essentially mirror-image double cable guide is provided using deflection pulleys (10a, 10b, 10c; 11a, 11b, 11c) that can be freely rotated about horizontal axes,
characterized,
that each of the two cable guides two deflection rollers (10a, 10b; 11a, 11b) arranged on the upper frame (2) in the upper region of the two table legs (5 ', 6') at the table top (3) and also one at the lower end of the one telescopic table leg (5 ', 6') of the upper frame (2) arranged deflection roller (10c, 11c) and a tensioned rope (band 12a, 12b),
which is attached to the upper end of that table leg (5,6) of the base frame (1), which is assigned to the table leg (5 ', 6') of the upper frame (2) with the deflection roller (10c, 11c) at the lower end, and which is further guided around the lower deflecting roller (10c, 11c) of the telescopic table leg (5 ', 6') in order to then guide it over and over the two upper deflecting rollers (10a, 10b; 11a, 11b) of the upper part of the restaurant (2) finally lead it back down where it is attached to the other table leg (5, 6) of the base frame (1).
Tisch nach Anspruch 1, dadurch gekennzeichnet, daß die beiden Seile (Band 12a,12b) der Doppelseilzugführung zwischen den oberen Umlenkrollen (10a,10b;11a,11b) des Obergestells (2) jeweils direkt unterhalb der Tischplatte (3) verlaufen.Table according to claim 1, characterized in that the two cables (band 12a, 12b) of the double cable guide between the upper deflection rollers (10a, 10b; 11a, 11b) of the upper frame (2) each run directly below the table top (3). Tisch nach Anspruch 1, dadurch gekennzeichnet, daß die beiden Seile (Band 12a,12b) der Doppelseilzugführung zwischen den oberen Umlenkrollen (10a,10b;11a,11b) des Obergestells (2) jeweils innerhalb der Tischplatte (3) verlaufen.Table according to claim 1, characterized in that the two ropes (band 12a, 12b) of the double cable guide between the upper deflection rollers (10a, 10b; 11a, 11b) of the upper frame (2) each run within the table top (3). Tisch nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Höhenverstelleinrichtung (4) zwischen dem Untergestell (1) und den Obergestell (2) eine Spindel (7) ist.Table according to one of claims 1 to 3, characterized in that the height adjustment device (4) between the lower frame (1) and the upper frame (2) is a spindle (7). Tisch nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Seile (Bänder 12a,12b) aus Kunststoff sind.Table according to one of claims 1 to 4, characterized in that the ropes (bands 12a, 12b) are made of plastic. Tisch nach Anspruch 5, dadurch gekennzeichnet, daß die Bänder (12a,12b) aus Aramide-, Polyäthylen-, Kohlenstoff-, Glas- oder Keramikfasern bestehen.Table according to claim 5, characterized in that the belts (12a, 12b) consist of aramide, polyethylene, carbon, glass or ceramic fibers. Tisch nach Anspruch 5 oder 6, dadurch gekennzeichnet, daß zum Befestigen der Bänder (12a,12b) am Untergestell (1) die Bandenden jeweils mit einem Block (13) aus Kunststoff umgossen sind.Table according to claim 5 or 6, characterized in that in order to fasten the straps (12a, 12b) to the base frame (1), the straps are each cast with a block (13) made of plastic. Tisch nach Anspruch 7, dadurch gekennzeichnet, daß der Kunststoff ein Epoxyharz oder ein Polyesterharz ist.Table according to claim 7, characterized in that the plastic is an epoxy resin or a polyester resin. Tisch nach einem der Ansprüche 5 bis 8, dadurch gekennzeichnet, daß zwischen dem einen Bandende und dem Untergestell (1) eine Spannvorrichtung (15) angeordnet ist.Table according to one of claims 5 to 8, characterized in that a tensioning device (15) is arranged between the one band end and the base frame (1). Tisch nach Anspruch 9, dadurch gekennzeichnet, daß die Spannvorrichtung (15) aus einer mit dem Band in Richtung dessen Längserstreckung verbundenen Gewindestange (19) mit einer am Untergestell (1) sich abstützenden Spannschraube (20) besteht.Table according to claim 9, characterized in that the tensioning device (15) consists of a threaded rod (19) connected to the belt in the direction of its longitudinal extent with a tensioning screw (20) supported on the base frame (1).
EP91109327A 1990-06-08 1991-06-07 Vertically adjustable table Expired - Lifetime EP0460685B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9006486U DE9006486U1 (en) 1990-06-08 1990-06-08 Height adjustable table
DE9006486U 1990-06-08

Publications (2)

Publication Number Publication Date
EP0460685A1 true EP0460685A1 (en) 1991-12-11
EP0460685B1 EP0460685B1 (en) 1994-03-09

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ID=6854527

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EP91109327A Expired - Lifetime EP0460685B1 (en) 1990-06-08 1991-06-07 Vertically adjustable table

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DE (2) DE9006486U1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2262030A (en) * 1991-12-06 1993-06-09 Energy Facilities Management L A levelling workstation
EP1008314A2 (en) * 1998-12-12 2000-06-14 Rainer Schmidt Height adjustable work table
WO2001074198A1 (en) * 2000-03-31 2001-10-11 Linak A/S A lifting column, preferably for height adjustable furniture, such as beds and tables
DE10216774A1 (en) * 2002-04-15 2003-10-30 Moeckel Feinmechanik Inh Holge Table with height adjustment has two legs and synchronizing device to ensure uniform height adjustment in table
DE102009049161A1 (en) * 2009-10-12 2011-04-21 Reinhold Beck Maschinenbau Gmbh Work and assembly table
US9510670B2 (en) 2014-05-08 2016-12-06 Teknion Limited Height-adjustable table

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE492185T1 (en) 2007-04-30 2011-01-15 Kesseboehmer Produktions Gmbh & Co Kg DEVICE FOR SYNCHRONIZING THE MOVEMENT OF SUPPORT ELEMENTS
NL1034685C2 (en) * 2007-11-13 2009-05-14 Lake Nassau B V Drive unit for adjusting support of e.g. screen panel, piece of furniture such as tabletop has roll-up plastic cord connected to slide, which drives slide in predetermined direction
WO2009064181A1 (en) * 2007-11-13 2009-05-22 Lake Nassau B.V. Drive unit for a support, screen panel, piece of furniture and kit for assembling such drive unit
AT507063B1 (en) 2008-12-22 2010-02-15 Svoboda Entwicklungs Gmbh & Co ARRANGEMENT WITH TELESCOPIC PIPES
US9560910B2 (en) 2015-02-09 2017-02-07 Kesseböhmer Produktions GmbH & Co. KG Device for connecting a belt of a height adjustable furniture piece

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3329701A1 (en) * 1983-08-17 1985-03-07 Heinrich Oelschläger Metallwarenfabrik GmbH & Co, 2812 Hoya Height-adjustable table frame
US4651652A (en) * 1984-12-20 1987-03-24 At&T Bell Laboratories Vertically adjustable work desk

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3329701A1 (en) * 1983-08-17 1985-03-07 Heinrich Oelschläger Metallwarenfabrik GmbH & Co, 2812 Hoya Height-adjustable table frame
US4651652A (en) * 1984-12-20 1987-03-24 At&T Bell Laboratories Vertically adjustable work desk

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2262030A (en) * 1991-12-06 1993-06-09 Energy Facilities Management L A levelling workstation
GB2262030B (en) * 1991-12-06 1995-08-02 Energy Facilities Management L Improved workstation
EP1008314A2 (en) * 1998-12-12 2000-06-14 Rainer Schmidt Height adjustable work table
EP1008314A3 (en) * 1998-12-12 2001-08-22 Rainer Schmidt Height adjustable work table
WO2001074198A1 (en) * 2000-03-31 2001-10-11 Linak A/S A lifting column, preferably for height adjustable furniture, such as beds and tables
DE10216774A1 (en) * 2002-04-15 2003-10-30 Moeckel Feinmechanik Inh Holge Table with height adjustment has two legs and synchronizing device to ensure uniform height adjustment in table
DE10216774B4 (en) * 2002-04-15 2005-09-08 Möckel Feinmechanik, Inh.: Holger Möckel Height-adjustable table
DE102009049161A1 (en) * 2009-10-12 2011-04-21 Reinhold Beck Maschinenbau Gmbh Work and assembly table
US9510670B2 (en) 2014-05-08 2016-12-06 Teknion Limited Height-adjustable table
US9820565B2 (en) 2014-05-08 2017-11-21 Teknion Limited Height adjustable table

Also Published As

Publication number Publication date
DE59101138D1 (en) 1994-04-14
EP0460685B1 (en) 1994-03-09
DE9006486U1 (en) 1990-10-04

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