EP2213198B1 - Furniture substructure - Google Patents

Furniture substructure Download PDF

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Publication number
EP2213198B1
EP2213198B1 EP20100151954 EP10151954A EP2213198B1 EP 2213198 B1 EP2213198 B1 EP 2213198B1 EP 20100151954 EP20100151954 EP 20100151954 EP 10151954 A EP10151954 A EP 10151954A EP 2213198 B1 EP2213198 B1 EP 2213198B1
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EP
European Patent Office
Prior art keywords
column
connecting rod
furniture
telescopic
piston
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EP20100151954
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German (de)
French (fr)
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EP2213198A1 (en
Inventor
Jürgen HÖRMANN
Timo Wurster
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Veyhl GmbH
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Veyhl GmbH
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Publication of EP2213198A1 publication Critical patent/EP2213198A1/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
    • A47B9/10Tables with tops of variable height with vertically-acting fluid cylinder

Definitions

  • the invention relates to a furniture base with at least one first furniture leg, wherein at least the first furniture leg has a telescopic column.
  • the legs can be made adjustable in length as a telescopically extendable column.
  • the length adjustment can be driven for example by a motor drive or by a manually operated spindle drive.
  • an alls Einzelhubzylinder running gas spring is integrated into the column, which is a pressure cylinder device with a pressure cylinder in which a piston arranged at one end of a piston rod is guided. If the column is to carry heavy loads, a hydraulic cylinder may also be used as the pressure cylinder device.
  • a pressure cylinder device is referred to, in which only exactly one piston rod is guided in exactly one piston, so that the maximum achievable when pulling out the piston rod from the piston stroke corresponding to the length of the piston rod.
  • This Druckzylindervorric, hhrt serves to facilitate the length adjustment when telescoping the column.
  • the column has at least two telescoping column areas.
  • the pressure cylinder device exerts a force pushing the column areas apart. This makes it easier to adjust the column against gravity.
  • Such disengagement facilitations also secure such a column against inadvertent shortening, i. slipping, accidental release of the associated lock, that is, inadvertent unlocking the length adjustment.
  • the invention has for its object to provide a furniture base with at least a first formed as a telescopic column furniture leg, which has a wider range of applications. It is a further object of the invention to provide a table with such a furniture base.
  • the subject of the furniture substructure is achieved by a furniture substructure with the features specified in claim 1, the object relating to the table by a table having the features specified in claim 12
  • the Möblunterbau invention has at least one first furniture leg with a telescopic, ie collapsible and retractable, column with a first and a second column end portion, wherein the first and the second column end portion are connected to each other via a central pillar portion and the pillar portions are telescopic against each other in the longitudinal axis direction of the column.
  • the column areas are preferably designed as tubes with, for example, a circular cross-section and give the column the rigidity necessary for a support function.
  • a push rod drive provided with a first and a second push rod and a push rod displacement transmission device.
  • the push rod displacement transmission device is adapted to transmit a parallel to the longitudinal axis of the column directed displacement of the push rods on the other of the push rods such that the push rods move in the opposite direction parallel to the longitudinal axis of the column.
  • Such push rod drives are known in the art.
  • the push rods are designed as racks and are on opposite sides of a gear to each other in a parallel position, with the gear engaged.
  • the gear then forms the push rod displacement transmission device. If the gear rotates about its center, then the push rods are displaced in opposite directions to each other along their longitudinal axes.
  • a corresponding device can of course also with a wheel (guide wheel) and adjoining push rods with a flat surface, which has sufficient friction to not slip through the wheel, be executed.
  • a pressure cylinder device which is preferably designed as a single stroke cylinder, is provided with a pressure cylinder, in which a piston arranged at one end of a piston rod is guided.
  • the pressure cylinder and the push rod displacement transmission device of the push rod drive are fixedly secured to the central pillar part and the second push rod is coupled to the second pillar end region relative to one another in a positionally stable manner.
  • the end of the piston rod facing away from the piston and the first push rod are coupled to one another in a positionally stable manner with the first end column region via a coupling.
  • the first push rod acts on a lifting or lowering movement of the piston rod in the pressure cylinder as a drive push rod of the push rod drive.
  • the couplings may be e.g. be designed as fittings, jamming and / or welding.
  • the couplings may also be indirect, i. be executed with an intermediate part. Further, the couplings can also be carried out via counter bearings on which at least one of the push rods is supported in a telescoping of the column.
  • the table top can form an abutment of the first push rod and / or a socket provided at the free end of the second column end portion can form an abutment for the second push rod.
  • coupling serving fortifications can then be omitted.
  • the column parts are controlled against each other by the push rod drive slidably. Since two push rods are provided with opposite coupled displacement direction, a stroke movement of the piston in the pressure cylinder and an associated stroke of the piston rod in a stroke length doubling the extension length, ie a doubled stroke of the column, can be implemented.
  • the table height adjustability according to the E 527-1 standard can thus be easily achieved.
  • the length adjustment of the column e.g. when used as a table leg, the height adjustment of the table with this table leg, can be done quickly and without much effort.
  • the column is inexpensive to produce. It is an environmentally friendly, emission-free drive the length adjustment by the use of the pressure cylinder device possible.
  • the telescopic column can be used in areas / environments that do not permit or permit the use of electrical and / or hydraulic systems.
  • the column can be made very compact, so that when transporting the column only small space requirement. Further
  • the column can be designed very robust, so that a high weight load of a table with a column is possible as a table leg.
  • synchronization means are provided, set up the displacement of the push rods of the telescopic column of the first furniture leg with the displacement of the push rods of the telescopic column of the second furniture leg with each other, such that the displacement of the push rods of one of the columns forces a corresponding displacement of the push rods of the other telescopic column ,
  • a synchronization tilting moments can be compensated, which can occur when one of the columns is loaded unevenly relative to the other column, i. e.g. a table having a furniture base according to the invention is loaded by pressing on only one edge of its table top or in height, for example, should be reduced.
  • the push rod displacement transmission device of the pillar of the second furniture leg around two planetary gears, preferably gears, circulating around it circulating means, preferably a chain or a toothed belt, on, wherein the push rods are attached to the circulating means such that the Push rods move while rotating in the opposite direction parallel to the longitudinal axis of the column of the second furniture leg.
  • the epicyclic wheels are then rotatably mounted about their centers on the central pillar region, so that the circulatory means form an oval shape with a longitudinal axis direction in the column longitudinal axis direction, whereby a maximized extension length of the pillar can be achieved.
  • the telescopic columns each have displacement transmission means and the synchronization means comprise a shaft connecting the first and the second telescopic column and rotatably mounted about their longitudinal axis.
  • the displacement of the respective push rods of one of the columns in each case in a rotation of the shaft can be transmitted via the displacement transmission means. In this way, a simple and robust synchronization of the displacements of the push rods in the columns can be achieved.
  • the width of the table is determined only by the width of the table top and the length of the shaft.
  • a table can be stored in the modular principle in individual parts, ie columns and table tops and widths, and assembled if necessary. It is also possible to couple more than two telescoping columns with the synchronization means as described.
  • opposite ends of the columns provided Tischfußausleger and / or provided at the ends of such a table side parts with an integrated drive system may be formed identically on each column.
  • the displacement transmission means of the individual columns each have a toothed drive with a toothed belt or a chain revolving around a first and a second toothed wheel.
  • a rope or belt circulating around rollers can also be used.
  • the first gear, or a first roller mounted with its / its axis of rotation at each of a free end of the shaft and the second gear, or a second roller, is mounted on the respective first column end.
  • push rod means are fixed, which are rigidly coupled with a free end to the central pillar region of the respective pillar.
  • the first gear, or the first roller can be positioned in one region of the column at one of its free ends, preferably at the free end of the first column end region, in particular if this is designed as an inner column.
  • the telescopic column of the second furniture leg is formed according to the first furniture leg with a pressure cylinder device, this is another preferred embodiment.
  • the push rod displacement transmission device comprises two planetary gears, preferably gears, for circulating means arranged around it, preferably a chain or a toothed belt.
  • the circulating means can also be designed as a rope or a band.
  • the planetary gears are then rotatably mounted about their midpoints directly or indirectly to the central column area, whereby the push rod displacement transmission device at the middle Column part is attached.
  • the push rods are attached to the circulating means, each with a free end of the push rods such that the push rods move during rotation in the opposite direction parallel to the longitudinal axis of the column.
  • the circulating around the planetary intake means form an oval shape whose longitudinal axis extends in the longitudinal axis direction of the column.
  • the column has a releasable locking device, set up to lock the position of at least one of the pillar regions relative to another of the pillar regions.
  • the column can also apply a great resistance to pushing together in an extended state.
  • the pressure cylinder device is designed as a gas spring.
  • Gas springs are very robust and inexpensive. A gas spring can be easily and quickly replaced without the entire drive system, ie the entire column to dismantle.
  • the gas spring is designed as a blockable gas spring, wherein the Gaskoibenbetatigungsvornchtung is provided at the piston end facing away from the piston rod, set by the actuation of a position of the piston in the gas cylinder to lock and / or change.
  • gas springs are e.g. used in height-adjustable office chairs. These gas springs thus have an already installed as standard locking device, so that only one operating lever for this locking device must be provided on the column.
  • the first column end region is configured as an inner column and the second column end region is configured as an outer column.
  • the column In a conventional installation position of the DruckzyHndervoriques with upward retracting movement of the piston rod, the column can then be placed upwardly tapering.
  • the storage stable coupling of the piston end facing away from the piston rod with the drive push rod is preferably mediated via a fastening of the piston end facing away from the piston rod and the drive push rod on the inner column and the second push rod is fixedly secured to the outer column.
  • the indirect coupling of the drive push rod with the piston rod facilitates the assembly and disassembly of the column.
  • the shaft can, in a region of the first column areas adjoining the free ends of the first column regions, have the telescopic columns connect.
  • the shaft is then positioned in an area directly under the table top. As a result, the wave does not interfere with the use of the table.
  • the telescoping column of the second furniture leg according to a telescopic column with a pressure cylinder device, preferably with a gas pressure spring is also very advantageous. Prolongation of the column during telescoping is then supported evenly in both columns.
  • the function of the push rod which is arranged in the column end region of the piston rod, is taken over by the piston rod, so that can be dispensed with this push rod.
  • the same function can also be achieved if in the telescoping column of the printing cylinder is rotated by 180 °.
  • the piston would be able to replace the corresponding push rod.
  • the FIG. 1 shows a telescopic column.
  • FIG. 2 shows an embodiment of a telescoping column, are provided in the displacement transmission means.
  • FIG. 3 shows a table with a furniture base according to the invention.
  • a telescopic column 1 is shown,
  • the column 1 has a first and a second column end region 3, 4, wherein the first 3 and the second column end region 4 are connected to one another via a central column region 5 and the column regions 3, 4, 5 are telescopic in the longitudinal axis direction of the column 1.
  • the telescoping is shown symbolically in the figure by a double arrow.
  • the first column end region 3 is designed as an inner column and the second column end region 4 is configured as an outer column, ie, when the column regions 3, 4, 5 are pushed together, the first column end region 3 is inserted into the middle column region 5 and the middle column region 5 becomes the second column end region 3 Pillar end 4 inserted.
  • the columns ranges 3,4,5 may be configured, for example, tubular with a round cross-section. However, there are also open, eg U-shaped profiles as column areas 3,4,5.
  • the column 1 has a push rod drive with a first push rod 8 and a second push rod 9 and a push rod displacement transmission device 10.
  • the push rod drive is arranged within the column areas 3,4,5.
  • the push rod displacement transmission device 10 By the push rod displacement transmission device 10, a directed parallel to the longitudinal axis of the column 1 displacement of one of the push rods 8.9 are transferred to the other of the push rods 8.9 so that the push rods 8.9 move in the opposite direction parallel to the longitudinal axis of the column 1 ,
  • These opposing displacements of the push rods 8,9 are shown symbolically in the figure by arrows, the arrowheads in the directions of movement of the push rods 8,9 when pulling apart, or pressures of the column 1 show.
  • two planetary gears 12, 13 formed, for example, as toothed wheels, are rotatably mounted about their center at the central pillar region 5 such that the distance between the toothed wheels is not changed by the telescoping of the pillar 1.
  • a holder 15 is provided within the central column region 5, which is fastened to a base plate 16 of the central column region 5 by means of a screw 20.
  • the Schubstanqenverschiebungsübertragungsvorraum 10 is thus fixed on the planet gears 12, 13 fixed to the middle sheufen Scheme 5.
  • the epicyclic wheels 12, 13 are e.g. arranged as a chain circulating means 22 which rotates when turning the epicyclic wheels 12, 13 around the same.
  • the chain, or the circulating means 22, is / are placed around the gears in an oval shape.
  • the circulation means 22 thus have a closed shape and are so taut that they can not slip.
  • the push rods 8.9 are attached to the chain 22 such that the push rods 8.9 move during rotation of the chain 22 in the opposite direction parallel to the longitudinal axis of the column 1.
  • the second push rod 9 is coupled to the second column end region 4 in a positionally stable manner and the first push rod 8 is coupled to the first column end region 3 in a positionally stable manner with respect to one another.
  • the coupling is exemplary by screwing with one screw 20 shown.
  • the circulation of the chain therefore causes via the displacement of the push rods 8.9 telescoping the column areas 3,4,5 against each other.
  • the second push rod 9 passes through an opening in the base plate 16 of the central pillar region fifth
  • a pressure cylinder device designed as a gas pressure spring is arranged within the column areas 3, 4, 5 with a pressure cylinder 31, in which a piston 33 arranged at one end of a piston rod 32 is guided.
  • the pressure cylinder 31 is, like the gears 12,13 of the push rod drive, fixedly attached to the central column part 5, e.g. screwed to the base plate 16 of the central column area 5 by means of a screw 20.
  • the piston-remote end of the piston rod 32 and the first push rod 8 are coupled to one another in a storage-stable manner with the first column end region 3 via a coupling, i. For example, screwed by means of one screw 20 at the first column end 3.
  • the first push rod 8 acts on a lifting or lowering movement of the piston rod 32 in the pressure cylinder 31 as a drive push rod of the push rod drive. That this drive rod transmits a lifting or lowering movement of the piston rod 32 on the rotating chain 22 of the push rod drive, whereby the chain 22 performs a circulation movement about the gears 12,13 of the push rod drive and the second push rod 9 is moved in the opposite direction to the movement of the drive push rod so that the column areas 3,4,5 of the column 1 are synchronously telescoped into or out of each other.
  • a gas piston actuating device 40 is shown symbolically. By the operation of which is a position of the piston 33 in the pressure cylinder 31 can be locked and / or changed, so the gas spring is configured as a lockable gas spring, as used for example in office chairs.
  • the gas piston actuating device 40 thus forms a releasable locking device of the column 1, by means of which a position of at least one of the sheulenbere1che 3,4,5 relative to another of the column areas 3,4,5 can be locked.
  • FIG. 2 is an embodiment of a telescopic column 41 according to FIG. 1 however, displacement transfer means 50 are additionally provided.
  • the displacement transmission means 50 By means of the displacement transmission means 50, a displacement of the push rods 8, 9 of the columns can be transmitted in one turn of a shaft. The latter serves to achieve synchronization of telescoping or telescoping when telescoping two telescoping columns.
  • This embodiment of the telescopic column is in particular for use in a furniture substructure according to the invention, as in eg FIG. 3 is shown, suitable,
  • the displacement transfer means 50 By means of the displacement transfer means 50, the relative movement of the central pillar region 5 to the first pillar end region 3 when telescoping the pillar is translated into a rotational movement of a toothed wheel 52 fastened to the first pillar end region 3 in the region of the free end of the first pillar end region 3 about its center.
  • Gears are symbolically drawn in the figures without teeth. These Relative movement corresponds to the orbital movement of the chain 22 of the push rod displacement transmission device 10 of the push rod drive. It is therefore also the circulation movement of the chain 22 of the push rod drive is transmitted to the gear 52,
  • the displacement transmission means 50 a toothed drive with a about a first and a second gear 52,53 circulating toothed belt 55 or a chain.
  • the first gear 52 is the aforementioned gear 52 mounted with its rotation axis at the free end of the first column end portion 3.
  • the second gear 53 is also mounted on the first column end portion 3, so that the distance of the gears 52, 53 from each other when telescoping the column is not changed.
  • push rod means 60 are fixed, which are rigidly coupled with a free end to the central pillar region 5 of the column. These push rod means 60 are formed in the column shown by the pressure cylinder 31 of the gas spring.
  • the pressure cylinder 31 is at one end screwed to the base part 16 of the central pillar region 5 and the other end it is fastened by means of a mounting plate 62 on the toothed belt 55 and on the chain. As a result, said rigid coupling is achieved.
  • FIG. 3 shows a table with a furniture substructure 70 according to the invention in a perspective view.
  • the Möbleunterbau 70 has two telescopic columns 41.71, which are used as furniture legs, ie as table legs.
  • a table top 72 is attached to the free ends of the pillars 41,71.
  • the telescopic column 41 of the first furniture leg is made according to the telescopic column FIG. 2 educated.
  • the telescopic column 71 of the second furniture leg is also according to the telescoping column FIG. 2 formed, but with no gas spring is present.
  • the pillar 71 of the second furniture leg also has displacement transmission means 50a with a gear drive.
  • the tooth drive is formed by a toothed belt 55a revolving around a first and a second toothed wheel 52a, 53a.
  • the push rod means 60a of the translational transfer means of the pillar 71 of the second furniture leg fixed to the toothed belt 55a are rigidly coupled with a free end to the central pillar region 5 of the pillar, namely the base plate 16 of the central pillar region 5 e.g. welded.
  • the furniture base 70 has synchronization means, by means of which the displacement of the push rods 8.9 of the telescopic column 41 of the first furniture leg with the displacement of the push rods 8a, 9a of the telescopic column 71 of the second furniture leg are coupled together.
  • the displacement of the push rods 8,8a, 9,9a one of the columns 41,71 forces a corresponding displacement of the push rods 8,8a, 9,9a of each other telescopic column 41,71.
  • the push rods 8a, 9a of the second column 71 are, just like those of the first column 41, via a fixed to the central column region 5 fixed push rod displacement transmission device 10a, with epicyclic wheels 12a, 13a and the planetary gears 12a, 13a around arranged, for example, formed as a chain circulating means 22a, coupled together.
  • the synchronization means comprise a shaft 80 which connects the first telescopic column 41 and the second telescopic column 71 and is rotatably mounted about its longitudinal axis.
  • the shaft 80 connects the telescopic columns 41, 71 in a region of the first pillar regions 3 which adjoins the free ends of the first pillar regions 3.
  • the shaft 80 thus extends in an area immediately below the table top 72nd
  • each of the first gear 52,52a of the gear drive of the displacement transmission means 50,50a with its axis of rotation mounted on each free end of the shaft 80 torsionally rigid.
  • This rotation of the shaft 80 forces a displacement of the central column area 5 of the other columns 41,71 and thus a synchronized telescoping of the two columns 41,71, namely a synchronized pulling apart when pulling apart and a synchronized pushing together of both columns 41,71 when pushed together.
  • the invention is not limited to the above-mentioned embodiment, but rather a number of variants are conceivable, which make use of the features of the claimed invention even with fundamentally different type of execution.

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  • Legs For Furniture In General (AREA)

Description

Die Erfindung betrifft einen Möbelunterbau mit mindestens einem ersten Möbelbein, wobei mindestens das erste Möbelbein eine teleskopierbare Säule aufweist.The invention relates to a furniture base with at least one first furniture leg, wherein at least the first furniture leg has a telescopic column.

Bei Möbelstücken, wie Tischen oder Bürostühlen, ist häufig eine Höhenverstellbarkeit z.B. der Tischplatte oder der Sitzfläche vorgesehen. Dazu können z.B. die Tischbeine als teleskopartig ausziehbare Säule längenverstellbar ausgeführt sein. Die Längenverstellbarkeit kann z.B. durch einen Motorantrieb oder durch einen manuell zu betätigenden Spindelantrieb antreibbar sein.For furniture, such as tables or office chairs, a height adjustment, for example, the table top or the seat is often provided. For this example, the legs can be made adjustable in length as a telescopically extendable column. The length adjustment can be driven for example by a motor drive or by a manually operated spindle drive.

Meist ist jedoch eine alls Einzelhubzylinder ausgeführte Gasdruckfeder in die Säule integriert, die eine Druckzylindervorrichtung mit einem Druckzylinder, in dem ein an einem Ende einer Kolbenstange angeordneter Kolben geführt ist, darstellt. Wenn die Säule schwere Lasten tragen soll, kann auch ein Hydraulikzylinder als Druckzylindervorrichtung verwendet werden. Als Einzelhubzylinder wird eine Druckzylindervorrichtung bezeichnet, bei der lediglich genau eine Kolbenstange in genau einem Kolben geführt ist, so dass der beim Herausziehen der Kolbenstange aus dem Kolben erreichbare Hubweg maximal der Länge der Kolbenstange entspricht.Usually, however, an alls Einzelhubzylinder running gas spring is integrated into the column, which is a pressure cylinder device with a pressure cylinder in which a piston arranged at one end of a piston rod is guided. If the column is to carry heavy loads, a hydraulic cylinder may also be used as the pressure cylinder device. As Einzelhubzylinder a pressure cylinder device is referred to, in which only exactly one piston rod is guided in exactly one piston, so that the maximum achievable when pulling out the piston rod from the piston stroke corresponding to the length of the piston rod.

Diese Druckzylindervorric,htung dient dazu, die Längenverstellbarkeit beim Teleskopieren der Säule zu erleichtern. Die Säule weist dabei mindestens zwei ineinanderschiebbare Säulenbereiche auf. Durch die Druckzylindervorrichtung wird eine die Säulenbereiche auseinander herausdrückende Kraft ausgeübt. Dadurch kann die Säule leichter gegen die Schwerkraft verstellt werden. Derartige Auszieherleichterungen sichern eine derartige Säule auch gegen ein unbeabsichtigtes Verkürzen, d.h. ein Durchrutschen, bei einem versehentlichen Auslösten der zugehörigen Arretierung, d.h, bei einem versehentlichen Entsichern der Längenverstellung.This Druckzylindervorric, hhrt serves to facilitate the length adjustment when telescoping the column. The column has at least two telescoping column areas. The pressure cylinder device exerts a force pushing the column areas apart. This makes it easier to adjust the column against gravity. Such disengagement facilitations also secure such a column against inadvertent shortening, i. slipping, accidental release of the associated lock, that is, inadvertent unlocking the length adjustment.

Bei bekannten teleskopierbaren Säulen, deren Teleskopierbarkeit durch einen Einzelhubzylinder unterstützt wird, ist die maximale Länge der Teleskopierbarkeit, also die Differenz zwischen der Länge der vollstandig herausgezogenen Säule zur Länge der vollständig zusammengeschobenen Säule, durch den maximalen Hubweg des verwendeten Einzelhubzylinders begrenzt. Reicht dieser Hubweg nicht aus, so muss entweder ein Mehrfachhubzylinder verwendet werden, was aufwändig und teuer ist, oder es muss ein völlig anderer Mechanismus zur Höhenverstellung verwendet werden.In known telescoping columns whose telescoping is supported by a Einzelhubzylinder, the maximum length of the telescoping, so the difference between the length of the fully withdrawn column to the length of the fully collapsed column, limited by the maximum stroke of the Einzelhubzylinders used. If this stroke is not sufficient, then either one must Multi-stroke cylinder can be used, which is complicated and expensive, or it must be used a completely different mechanism for height adjustment.

Letzteres ist insbesondere deshalb nachteilig, da sich die einschlägigen Industrienormen für höhenverstellbare Möbel in ihrer zeitlichen und/oder räumlich Geltung ändern können. So sind Überlegungen im Gange eine Höhenverstellbarkeit von höhenverstellbaren Tischen zwischen einer Höhe von 650mm und 1250mm vorzuschreiben, während bei der DIN 16550-1 lediglich 680mm bis 1180mm gefordert sind.The latter is particularly disadvantageous because the relevant industry standards for height-adjustable furniture in their temporal and / or spatial validity may change. So considerations are underway a height adjustment of height-adjustable tables between a height of 650mm and 1250mm prescribe, while in the DIN 16550-1 only 680mm to 1180mm are required.

Aus der DE 203 11 574 U1 ist ein Möbelunterbau mit einem als teleskopierpare Säule ausgeführten Möbelbein bekannt geworden, der die genannten Nachteile überwindet.From the DE 203 11 574 U1 is a furniture base with a telescopic column designed as a furniture leg known that overcomes the disadvantages mentioned.

Der Erfindung liegt die Aufgabe zugrunde, einen Möbelunterbau mit mindestens einem ersten als teleskopierbare Säule ausgebildeten Möbelbein bereitzustellen, der ein erweitertes Einsatzspektrum aufweist. Es ist weiterhin Aufgabe der Erfindung, einen Tisch mit einem solchen Möbelunterbau anzugeben.The invention has for its object to provide a furniture base with at least a first formed as a telescopic column furniture leg, which has a wider range of applications. It is a further object of the invention to provide a table with such a furniture base.

Die den Möbelunterbau betreffende Aufgabe wird durch einen Möbelunterbau mit den in Anspruch 1 angegebenen Merkmalen, die den Tisch betreffende Aufgabe durch einen Tisch mit den in Anspruch 12 angegebenen Merkmalen gelöstThe subject of the furniture substructure is achieved by a furniture substructure with the features specified in claim 1, the object relating to the table by a table having the features specified in claim 12

Die abhängigen Ansprüche stellen bevorzugte Ausführungsformen der Erfindung dar.The dependent claims represent preferred embodiments of the invention.

Der erfindungsgemäße Möblunterbau weist mindestens ein erstes Möbelbein mit einer teleskopierbaren, d.h. zusammenschiebbaren und wieder auseinanderziehbaren, Säule mit einem ersten und einem zweiten Säulenendbereich auf, wobei der erste und der zweite Säulenendbereich über einen mittleren Säulenbereich miteinander verbunden sind und die Säulenbereiche gegeneinander in Längsachsenrichtung der Säule teleskopierbar sind. Die Säulenbereiche sind bevorzugt als Rohre mit z.B. kreisrundem Querschnitt ausgebildet und verleihen der Säule die für eine Stützfunktion notwendige Steifigkeit.The Möblunterbau invention has at least one first furniture leg with a telescopic, ie collapsible and retractable, column with a first and a second column end portion, wherein the first and the second column end portion are connected to each other via a central pillar portion and the pillar portions are telescopic against each other in the longitudinal axis direction of the column. The column areas are preferably designed as tubes with, for example, a circular cross-section and give the column the rigidity necessary for a support function.

Es ist ein Schubstangenantrieb, mit einer ersten und einer zweiten Schubstange und einer Schubstangenverschiebungsübertragungsvorrichtung vorgesehen. Die Schubstangenverschiebungsübertragungsvorrichtung ist eingerichtet, eine parallel zur Längsachse der Säule gerichtete Verschiebung einer der Schubstangen derart auf die jeweils andere der Schubstangen zu übertragen, dass die Schubstangen sich in entgegengesetzter Richtung parallel zur Längsachse der Säule verschieben. Derartige Schubstangenantriebe sind im Stand der Technik bekannt. In einer sehr einfachen Ausführungsform eines derartigen Schubstangenantriebs sind die Schubstangen als Zahnstangen ausgeführt und stehen auf sich gegenüberliegenden Seiten eines Zahnrades zueinander in paralleler Position, mit dem Zahnrad im Eingriff. Das Zahnrad bildet dann die Schubstangenverschiebungsübertragungsvorrichtung. Dreht sich das Zahnrad um seinen Mittelpunkt, dann werden die Schubstangen in entgegengesetzter Richtung zueinander entlang ihrer Längsachsen verschoben. Eine entsprechende Vorrichtung kann selbstverständlich auch mit einem Rad (Umlenkrad) und daran anliegenden Schubstangen mit einer ebenen Oberfläche, die eine ausreichende Reibung aufweist um nicht am Rad durchzurutschen, ausgeführt sein.It is a push rod drive, provided with a first and a second push rod and a push rod displacement transmission device. The push rod displacement transmission device is adapted to transmit a parallel to the longitudinal axis of the column directed displacement of the push rods on the other of the push rods such that the push rods move in the opposite direction parallel to the longitudinal axis of the column. Such push rod drives are known in the art. In a very simple embodiment of such a push rod drive, the push rods are designed as racks and are on opposite sides of a gear to each other in a parallel position, with the gear engaged. The gear then forms the push rod displacement transmission device. If the gear rotates about its center, then the push rods are displaced in opposite directions to each other along their longitudinal axes. A corresponding device can of course also with a wheel (guide wheel) and adjoining push rods with a flat surface, which has sufficient friction to not slip through the wheel, be executed.

Weiter ist eine bevorzugt als Einzelhubzylinder ausgeführte Druckzylindervorrichtung mit einem Druckzylinder, in dem ein an einem Ende einer Kolbenstange angeordneter Kolben geführt ist, vorgesehen.Furthermore, a pressure cylinder device, which is preferably designed as a single stroke cylinder, is provided with a pressure cylinder, in which a piston arranged at one end of a piston rod is guided.

Der Druckzylinder und die Schubstangenverschiebungsübertragungsvorrichtung des Schubstangenantriebes sind am mittleren Säulenteil ortsfest befestigt und die zweite Schubstange ist mit dem zweiten Säulenendbereich gegeneinander lagestabil verkoppelt.The pressure cylinder and the push rod displacement transmission device of the push rod drive are fixedly secured to the central pillar part and the second push rod is coupled to the second pillar end region relative to one another in a positionally stable manner.

Erfindungsgemäß sind das kolbenabgewandte Ende der Kolbenstange und die erste Schubstange über eine Koppelung gegeneinander lagestabil mit dem ersten Säulenendbereich verkoppelt. Derart wirkt die erste Schubstange bei einer Hub- oder Senkbewegung der Kolbenstange im Druckzylinder als Antriebsschubstange des Schubstangenantriebs. Die Verkoppelungen können dabei z.B. als Verschraubungen, Verklemmungen und/oder Verschweißungen ausgeführt sein. Die Verkoppelungen können auch indirekt, d.h. mit einem Zwischenteil ausgeführt sein. Weiter können die Verkoppelungen auch über Gegenlager ausgeführt sein an denen sich zumindest eine der Schubstangen bei einem Teleskopieren der Säule abstützt. Z.B. kann bei einer Verwendung der Säule als Tischbein die Tischplatte ein Gegenlager der ersten Schubstange ausbilden und/oder ein am freien Ende des zweiten Säulenendbereichs vorgesehener Sockel kann ein Gegenlager für die zweite Schubstange ausbilden. Weitere als Verkoppelung dienende Befestigungen können dann entfallen.According to the invention, the end of the piston rod facing away from the piston and the first push rod are coupled to one another in a positionally stable manner with the first end column region via a coupling. Thus, the first push rod acts on a lifting or lowering movement of the piston rod in the pressure cylinder as a drive push rod of the push rod drive. The couplings may be e.g. be designed as fittings, jamming and / or welding. The couplings may also be indirect, i. be executed with an intermediate part. Further, the couplings can also be carried out via counter bearings on which at least one of the push rods is supported in a telescoping of the column. For example, If the column is used as a table leg, the table top can form an abutment of the first push rod and / or a socket provided at the free end of the second column end portion can form an abutment for the second push rod. Other than coupling serving fortifications can then be omitted.

Durch die erfindungsgemäßen Verkoppelungen und die Befestigung des Druckzylinders und der Schubstangenverschiebungsübertragungsvorrichtung des Schubstangenantriebes am mittleren Säulenteil sind die Säulenteile gegeneinander durch den Schubstangenantrieb kontrolliert verschiebbar. Da zwei Schubstangen mit gegenläufig gekoppelter Verschieberichtung vorhanden sind, kann eine Hubbewegung des Kolbens im Druckzylinder und ein damit verbundener Hubweg der Kolbenstange in eine den Hubweg verdoppelnde Ausziehlänge, d.h. einen verdoppelten Hub der Säule, umgesetzt werden. Die Tischhöhenverstellbarkeit nach der Norm E 527-1 kann damit problemlos erreicht werden.By the couplings according to the invention and the attachment of the printing cylinder and the push rod displacement transmission device of Push rod drive on the central column part, the column parts are controlled against each other by the push rod drive slidably. Since two push rods are provided with opposite coupled displacement direction, a stroke movement of the piston in the pressure cylinder and an associated stroke of the piston rod in a stroke length doubling the extension length, ie a doubled stroke of the column, can be implemented. The table height adjustability according to the E 527-1 standard can thus be easily achieved.

Es kann so unter Verwendung einer relativ kurzen Druckzylindervorrichtung, d.h. z.B. einem kurzen Einzelhubgasdruckzylinder, ein relativ großer Längenverstellbereich der Säule erreicht werden.It can thus be produced using a relatively short pressure cylinder device, i. e.g. a short Einzelhubgasdruckzylinder, a relatively large Längenverstellbereich the column can be achieved.

Die Längenverstellung der Säule, z.B. bei Verwendung als Tischbein die Höhenverstellbarkeit des Tisches mit diesem Tischbein, kann rasch und ohne großen Kraftaufwand erfolgen. Gegenüber motorisch angetriebenen Längenverstellbarkeitsmechanismen ist die Säule günstig herstellbar. Es ist ein umweltfreundlicher, emissionsfreier Antrieb der Längenverstellbarkeit durch die Verwendung der Druckzylindervorrichtung möglich. Die teleskopierbare Säule kann in Bereichen/Umgebungen eingesetzt werden, die keine elektrische und/oder hydraulischen Systeme zulassen bzw. deren Einsatz nicht ermöglichen.The length adjustment of the column, e.g. when used as a table leg, the height adjustment of the table with this table leg, can be done quickly and without much effort. Compared with motor-driven Längenverstellbarkeitsmechanismen the column is inexpensive to produce. It is an environmentally friendly, emission-free drive the length adjustment by the use of the pressure cylinder device possible. The telescopic column can be used in areas / environments that do not permit or permit the use of electrical and / or hydraulic systems.

Die Säule kann sehr kompakt ausgeführt sein, so dass bei einem Transport der Säule nur geringer Platzbedarf besteht. Weiter kann die Säule sehr robust ausgelegt sein, so dass eine hohe Gewichtsbelastung eines Tisches mit einer Säule als Tischbein möglich ist.The column can be made very compact, so that when transporting the column only small space requirement. Further The column can be designed very robust, so that a high weight load of a table with a column is possible as a table leg.

Dabei weist der erfindungsgemäße Möbelunterbau ein zweites Möbelbein auf, wobei auch das zweite Möbelbein als eine teleskopierbare Säule (zweite Säule) ausgebildet ist. Die zweite Säule ist im Wesentlichen baugleich mit der ersten Säule, wobei jedoch die Druckzylindervorrichtung entfallen kann. Die im Wesentlichen baugleiche Ausführung sollte zumindest soweit gegeben sein, dass die Säulenbereiche der ersten Säule und der zweiten Säule sich in ihrer Länge und ihrer Ausziehbarkeit entsprechen. Die zweite Säule weist also auf:

  • einen ersten und einen zweiten Säulenendbereich, wobei der erste und der zweite Säulenendbereich über einen mittleren Säulenbereich miteinander verbunden sind und die Säulenbereiche gegeneinander in Längsachsenrichtung der Säule teleskopierbar sind,
  • einen Schubstangenantrieb, mit einer ersten und einer zweiten Schubstange und einer Schubstangenverschiebungsübertragungsvorrichtung, eingerichtet eine parallel zur Längsachse der Säule gerichtete Verschiebung einer der Schubstangen derart auf die jeweils andere der Schubstangen zu übertragen, dass die Schubstangen sich in entgegengesetzter Richtung parallel zur Längsachse der Säule verschieben, wobei
  • die Schubstangenverschiebungsübertragungsvorrichtung des Schubstangenantriebes am mittleren Säulenteil ortsfest befestigt sind und die erste Schubstange über eine Koppelung mit dem ersten Säulenendbereich lagestabil miteinander verkoppelt ist, und die zweite Schubstange mit dem zweiten Säulenendbereich gegeneinander lagestabil verkoppelt ist.
In this case, the furniture base according to the invention on a second furniture leg, wherein the second furniture leg is designed as a telescopic column (second column). The second column is substantially identical to the first column, but the pressure cylinder device can be dispensed with. The substantially identical design should at least be given so far that the column areas of the first column and the second column correspond in their length and their extensibility. So the second pillar has:
  • a first and a second column end region, wherein the first and the second column end region are connected to one another via a central column region and the column regions are telescopic relative to one another in the longitudinal axis direction of the column,
  • a push rod drive, with a first and a second push rod and a push rod displacement transmission device configured to transmit a parallel to the longitudinal axis of the column directed displacement of the push rods on the other of the push rods so that the push rods move in the opposite direction parallel to the longitudinal axis of the column in which
  • the push rod displacement transmission device of the push rod drive are fixedly secured to the central column part and the first push rod is coupled in a positionally stable manner to each other via a coupling with the first column end region, and the second push rod is coupled Push rod with the second end column area against each other is stable in position coupled.

Dabei sind Synchronisationsmittel vorgesehen, eingerichtet die Verschiebung der Schubstangen der teleskopierbaren Säule des ersten Möbelbeins mit der Verschiebung der Schubstangen der teleskopierbaren Säule des zweiten Möbelbeins miteinander zu verkoppeln, derart dass die Verschiebung der Schubstangen einer der Säulen eine entsprechende Verschiebung der Schubstangen der anderen teleskopierbaren Säule erzwingt.In this case, synchronization means are provided, set up the displacement of the push rods of the telescopic column of the first furniture leg with the displacement of the push rods of the telescopic column of the second furniture leg with each other, such that the displacement of the push rods of one of the columns forces a corresponding displacement of the push rods of the other telescopic column ,

Dadurch ergibt sich ein insgesamt erweiterter Einsatzbereich des Möbelunterbaus. Dieser kann insbesondere zur höhenverstellbaren und stabilen Abstützung einer Tischplatte eingesetzt werden. Die synchrone Verstellung der Auszugslänge, d.h. Höhe, der Möbelbeine ermöglicht dabei eine jederzeit nivellierte Ausrichtung Tischplatte.This results in a total extended use of the furniture base. This can be used in particular for height-adjustable and stable support of a table top. The synchronous adjustment of the extension length, i. Height, the furniture legs allows a leveling at any time table top.

Zudem können durch eine derartige Synchronisation Kippmomente ausgeglichen werden, die auftreten können, wenn eine der Säulen relativ zu der anderen Säule ungleichmäßig belastet wird, d.h. z.B. ein Tisch, der einen erfindungsgemäßen Möbelunterbau aufweist, durch Drücken auf nur eine Kante seiner Tischplatte belastet wird bzw. in seiner Höhe z.B. verringert werden soll.In addition, by such a synchronization tilting moments can be compensated, which can occur when one of the columns is loaded unevenly relative to the other column, i. e.g. a table having a furniture base according to the invention is loaded by pressing on only one edge of its table top or in height, for example, should be reduced.

Vorteilhaft weist die Schubstangenverschiebungsübertragungsvorrichtung der Säule des zweiten Möbelbeins um zwei Umlaufräder, bevorzugt Zahnräder, zum darum Umlaufen herum angeordnete Umlaufmittel, bevorzugt eine Kette oder einen Zahnriemen, auf, wobei die Schubstangen an den Umlaufmitteln derart befestigt sind, dass die Schubstangen sich beim Umlaufen in entgegengesetzter Richtung parallel zur Längsachse der Säule des zweiten Möbelbeins verschieben. Die Umlaufräder sind dann um ihre Mittelpunkte drehbar am mittleren Säulenbereich befestigt, so dass die Umlaufmittel eine ovale Form mit Längsachsenrichtung in Säulenlängsachsenrichtung ausbilden, wodurch eine maximierte Ausziehlänge der Säule erreichbar ist.Advantageously, the push rod displacement transmission device of the pillar of the second furniture leg around two planetary gears, preferably gears, circulating around it circulating means, preferably a chain or a toothed belt, on, wherein the push rods are attached to the circulating means such that the Push rods move while rotating in the opposite direction parallel to the longitudinal axis of the column of the second furniture leg. The epicyclic wheels are then rotatably mounted about their centers on the central pillar region, so that the circulatory means form an oval shape with a longitudinal axis direction in the column longitudinal axis direction, whereby a maximized extension length of the pillar can be achieved.

Besonders bevorzugt weisen die teleskopierbaren Säulen jeweils Verschiebungsübertragungsmittel auf und die Synchronisationsmittel weisen eine die erste und die zweite teleskopierbare Säule verbindende um ihre Längsachse drehbar gelagerte Welle auf. Dabei ist über die Verschiebungsübertragungsmittel die Verschiebung der jeweiligen Schubstangen einer der Säulen jeweils in eine Drehung der Welle übertragbar. Derart lässt sich eine einfache und robuste Synchronisation der Verschiebungen der Schubstangen in den Säulen erreichen.Particularly preferably, the telescopic columns each have displacement transmission means and the synchronization means comprise a shaft connecting the first and the second telescopic column and rotatably mounted about their longitudinal axis. In this case, the displacement of the respective push rods of one of the columns in each case in a rotation of the shaft can be transmitted via the displacement transmission means. In this way, a simple and robust synchronization of the displacements of the push rods in the columns can be achieved.

Wird der erfindungsgemäße Möbelunterbau als Unterbau eines Tisches verwendet, so ist die Breite des Tisches lediglich durch die Breite der Tischplatte und die Länge der Welle festgelegt. Ein derartiger Tisch kann im Baukastenprinzip in Einzelteilen, d.h. Säulen und Tischplatten sowie Weiten, gelagert werden und bei Bedarf zusammengebaut werden. Es lassen sich auch mehr als zwei teleskopierbare Säulen wie beschrieben mit den Synchronisationsmittein verkoppeln. An den tischplattenabgewandten Enden der Säulen vorgesehene Tischfußausleger und/oder an den Enden eines derartigen Tisches vorgesehene Seitenteile mit einem integrierten Antriebssystem können an jeder Säule identisch ausgebildet sein.If the furniture base according to the invention used as a substructure of a table, the width of the table is determined only by the width of the table top and the length of the shaft. Such a table can be stored in the modular principle in individual parts, ie columns and table tops and widths, and assembled if necessary. It is also possible to couple more than two telescoping columns with the synchronization means as described. On the tabletop opposite ends of the columns provided Tischfußausleger and / or provided at the ends of such a table side parts with an integrated drive system may be formed identically on each column.

Sehr vorteilhaft weisen die Verschiebungsübertragungsmittel der einzelnen Säulen jeweils einen Zahnantrieb mit einem um ein erstes und ein zweites Zahnrad umlaufenden Zahnriemen oder einer Kette auf. Alternativ kann auch ein um Rollen umlaufendes Seil oder Band eingesetzt werden. Dabei ist jeweils das erste Zahnrad, bzw. eine erste Rolle, mit seiner/ihrer Drehachse an jeweils einem freien Ende der Welle montiert und das zweite Zahnrad, bzw. eine zweite Rolle, ist am jeweiligen ersten Säulenendbereich montiert. An dem Zahnriemen oder der Kette, bzw. dem Seil oder dem Band, sind Schubstangenmittel befestigt, die mit einem freien Ende starr an den mittleren Säulenbereich der jeweiligen Säule gekoppelt sind.Very advantageously, the displacement transmission means of the individual columns each have a toothed drive with a toothed belt or a chain revolving around a first and a second toothed wheel. Alternatively, a rope or belt circulating around rollers can also be used. In this case, in each case the first gear, or a first roller, mounted with its / its axis of rotation at each of a free end of the shaft and the second gear, or a second roller, is mounted on the respective first column end. On the toothed belt or the chain, or the rope or the band, push rod means are fixed, which are rigidly coupled with a free end to the central pillar region of the respective pillar.

Auf diese Weise lässt sich das erste Zahnrad, bzw. die erste Rolle, in einem Bereich der Säule an einem ihrer freien Enden, bevorzugt am freien Ende des ersten Säulenendbereiches, insbesondere wenn dieses als Innensäule ausgebildet ist, positionieren. Die teleskopierbare Säule des zweiten Möbelbeins ist gemäß dem ersten Möbelbein mit einer Druckzylindervorrichtung ausgebildet, Dies ist eine weitere bevorzugte Ausführungsform.In this way, the first gear, or the first roller, can be positioned in one region of the column at one of its free ends, preferably at the free end of the first column end region, in particular if this is designed as an inner column. The telescopic column of the second furniture leg is formed according to the first furniture leg with a pressure cylinder device, this is another preferred embodiment.

Bevorzugt weist bei mindestens einer der teleskopierbaren Säulen die Schubstangenverschiebungsübertragungsvorrichtung um zwei Umlaufräder, bevorzugt Zahnräder, zum darum Umlaufen herum angeordneten Umlaufmittel, bevorzugt eine Kette oder einen Zahnriemen auf. Die Umlaufmittel können auch als ein Seil oder ein Band ausgeführt sein. Die Umlaufräder sind dann um ihre Mittelpunkte drehbar am mittleren Säulenbereich direkt oder indirekt befestigt, wodurch die Schubstangenverschiebungsübertragungsvorrichtung am mittleren Säulenteil befestigt ist. Die Schubstangen sind an dem Umlaufmittel mit jeweils einem freien Ende der Schubstangen derart befestigt, dass die Schubstangen sich beim Umlaufen in entgegengesetzter Richtung parallel zur Längsachse der Säule verschieben. Durch das Umläufen der Umlaufmittel wird über das Verschieben der Schubstangen ein Teleskopieren der Säulenbereiche gegeneinander bewirkt. Dadurch ist ein besonders kompakter, d.h. kurzer mittlerer Säulenbereich, bei maximaler Verlängerung der Ausziehlänge möglich. Die um die Umlaufräder umlaufenden Einlaufmittel bilden eine ovale Form aus, deren Längsachse in Längsachsenrichtung der Säule verläuft. Wenn die Umlaufrader jeweils an einem Endbereich des mittleren Säulenbereichs positioniert sind, kann dadurch bei Einsatz von Schubstangen, die in ihrer Länge der Länge des mittleren Säulenbereichs entsprechen, eine Ausziehlänge erreicht werden, die nahezu der doppelten Länge des mittleren Säulenbereichs entspricht. D.h. die Säule kann in ihrem vollständig herausteleskopierten Zustand nahezu drei mal so lang sein, wie in ihrem zusammengeschobenen kürzesten Zustand.Preferably, in at least one of the telescoping columns, the push rod displacement transmission device comprises two planetary gears, preferably gears, for circulating means arranged around it, preferably a chain or a toothed belt. The circulating means can also be designed as a rope or a band. The planetary gears are then rotatably mounted about their midpoints directly or indirectly to the central column area, whereby the push rod displacement transmission device at the middle Column part is attached. The push rods are attached to the circulating means, each with a free end of the push rods such that the push rods move during rotation in the opposite direction parallel to the longitudinal axis of the column. By the circulation of the circulating means telescoping the column areas is effected against each other on the displacement of the push rods. This makes a particularly compact, ie short middle column area, possible with maximum extension of the extension length. The circulating around the planetary intake means form an oval shape whose longitudinal axis extends in the longitudinal axis direction of the column. When the revolving wheels are respectively positioned at an end portion of the central pillar portion, by using push rods corresponding in length to the length of the central pillar portion, a pullout length corresponding to almost double the length of the center pillar portion can be achieved. That is, the column can be nearly three times as long in its fully expanded state as when pushed together in its shortest state.

Sehr vorteilhaft weist die Säule eine lösbare Arretiervorrichtung auf, eingerichtet die Position mindestens eines der Säulenbereiche relativ zu einem anderen der Säulenbereiche zu arretieren. Dadurch kann die Säule auch in einem ausgezogenen Zustand einen großen Wiederstand gegen ein Zusammenschieben aufbringen.Very advantageously, the column has a releasable locking device, set up to lock the position of at least one of the pillar regions relative to another of the pillar regions. As a result, the column can also apply a great resistance to pushing together in an extended state.

Sehr vorteilhaft ist die Druckzylindervorrichtung als eine Gasdruckfeder ausgebildet. Gasdruckfedern sind sehr robust und preisgünstig. Eine Gasdruckfeder kann einfach und schnell ausgewechselt werden, ohne das gesamte Antriebssystem, d.h. die gesamte Säule, zu demontieren.Very advantageously, the pressure cylinder device is designed as a gas spring. Gas springs are very robust and inexpensive. A gas spring can be easily and quickly replaced without the entire drive system, ie the entire column to dismantle.

Besonders günstig ist die Gasdruckfeder als blockierbar Gasdruckfeder ausgebildet, wobei am kolbenabgewandten Ende der Kolbenstange eine Gaskoibenbetatigungsvornchtung vorgesehen ist, eingerichtet durch deren Betätigung eine Position des Kolbens im Gasdruckzylinder zu arretieren und/oder zu ändern. Derartige Gasdruckfedern werden z.B. in höhenverstellbaren Bürostühlen eingesetzt. Diese Gasdruckfedern haben damit eine bereits serienmäßig eingebaute Arretiervorrichtung, so dass an der Säule lediglich noch ein Bedienhebel für diese Arretiervorrichtung vorgesehen werden muss.Particularly advantageously, the gas spring is designed as a blockable gas spring, wherein the Gaskoibenbetatigungsvornchtung is provided at the piston end facing away from the piston rod, set by the actuation of a position of the piston in the gas cylinder to lock and / or change. Such gas springs are e.g. used in height-adjustable office chairs. These gas springs thus have an already installed as standard locking device, so that only one operating lever for this locking device must be provided on the column.

Bevorzugt sind der erste Säulenendbereich als eine Innensäule und der zweite Säulenendbereich als eine Außensäule ausgestaltet. Bei einer üblichen Einbaulage der DruckzyHndervorrichtung mit nach oben gerichteter Herausfahrbewegung der Kolbenstange kann die Säule dann sich nach oben verjüngend aufgestellt werden.Preferably, the first column end region is configured as an inner column and the second column end region is configured as an outer column. In a conventional installation position of the DruckzyHndervorrichtung with upward retracting movement of the piston rod, the column can then be placed upwardly tapering.

Dabei ist die lagestabile Verkoppelung des kolbenabgewandten Endes der Kolbenstange mit der Antriebsschubstange bevorzugt über eine Befestigung des kolbenabgewandten Endes der Kolbenstange und der Antriebsschubstange an der Innensäule vermittelt und die zweite Schubstange ist ortsfest an der Außensäule befestigt. Durch die indirekte Verkoppelung der Antriebsschubstange mit der Kolbenstange wird die Montage und Demontage der Säule erleichtert.The storage stable coupling of the piston end facing away from the piston rod with the drive push rod is preferably mediated via a fastening of the piston end facing away from the piston rod and the drive push rod on the inner column and the second push rod is fixedly secured to the outer column. The indirect coupling of the drive push rod with the piston rod facilitates the assembly and disassembly of the column.

Insbesondere ein Auswechseln der Druckzyfindervomchtung wird so vereinfacht.In particular, a replacement of the Druckzyfindervomchtung is simplified.

Wenn der erfindungsgemäße Möbelunterbau als Unterbau eines Tisches mit einer Tischplatte, die an den freien Enden der ersten Säulenendbereiche der Möbelbeine montiert ist, eingesetzt ist, kann so die Welle in einem, an die freien Enden der ersten Säulenbereiche angrenzenden Bereich der ersten Säulenbereiche die teleskopierbaren Säulen verbinden. Die Welle ist dann in einem Bereich direkt unter der Tischplatte positioniert. Dadurch wirkt die Welle bei einer Benutzung des Tisches nicht störend.When the furniture substructure according to the invention is used as a substructure of a table with a table top which is mounted on the free ends of the first column end regions of the furniture legs, then the shaft can, in a region of the first column areas adjoining the free ends of the first column regions, have the telescopic columns connect. The shaft is then positioned in an area directly under the table top. As a result, the wave does not interfere with the use of the table.

Sehr vorteilhaft ist bei einem erfindungsgemäßen Möbelunterbau auch die teleskopierbare Säule des zweiten Möbelbeins gemäß einer teleskopierbaren Säule mit einer Druckzylindervorrichtung, bevorzugt mit einer Gasdruckfeder, ausgeführt. Ein Verlängern der Säule beim Herausteleskopieren wird dann gleichmäßig bei beiden Säulen unterstützt.In a furniture substructure according to the invention, the telescoping column of the second furniture leg according to a telescopic column with a pressure cylinder device, preferably with a gas pressure spring, is also very advantageous. Prolongation of the column during telescoping is then supported evenly in both columns.

Es versteht sich, dass die Funktion der Schubstange, die im Säulenendbereich der Kolbenstange angeordnet ist, von der Kolbenstange übernommen wird, so dass auf diese Schubstange verzichtet werden kann. Die gleiche Funktion kann auch dadurch erreicht werden, wenn in der teleskopierbaren Säule der Druckzylinder um 180° gedreht wird. Somit würde der Kolben die entsprechende Schubstange ersetzen können.It is understood that the function of the push rod, which is arranged in the column end region of the piston rod, is taken over by the piston rod, so that can be dispensed with this push rod. The same function can also be achieved if in the telescoping column of the printing cylinder is rotated by 180 °. Thus, the piston would be able to replace the corresponding push rod.

Unter Druckzylinder werden im Rahmen der Erfindung nicht nur Gasdruckfedern oder Hydraulikzylinder verstanden, sondern auch mechanisch antreibbare Spindeln.Under pressure cylinders are understood in the invention not only gas springs or hydraulic cylinders, but also mechanically driven spindles.

Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels unter Bezugnahme auf die Zeichnungen näher erläutert.The invention will be explained in more detail using an exemplary embodiment with reference to the drawings.

Die Figur 1 zeigt eine teleskopierbare Säule.The FIG. 1 shows a telescopic column.

Die Figur 2 zeigt eine Ausführungsform einer teleskopierbaren Säule, bei der Verschiebungsübertragungsmittel vorgesehen sind.The FIG. 2 shows an embodiment of a telescoping column, are provided in the displacement transmission means.

Die Figur 3 zeigt einen Tisch mit einem erfindungsgemäßen Möbelunterbau.The FIG. 3 shows a table with a furniture base according to the invention.

Die Figuren der Zeichnungen sind stark schematisiert und sind nicht maßstäblich zu verstehen. Die einzelnen Bestandteile des erfindungsgemäßen Gegenstandes sind so dargestellt, dass ihr Aufbau gut gezeigt werden kann.The figures of the drawings are highly schematic and are not to scale. The individual components of the article according to the invention are shown so that their structure can be well shown.

In Figur 1 ist eine teleskopierbare Säule 1 dargestellt, Die Säule 1 weist einen ersten und einen zweiten Säulenendbereich 3,4 auf, wobei der erste 3 und der zweite Säulenendbereich 4 über einen mittleren Säulenbereich 5 miteinander verbunden sind und die Säulenbereiche 3,4,5 gegeneinander in Längsachsenrichtung der Säule 1 teleskopierbare sind. Die Teleskopierbarkeit ist in der Figur durch einen Doppelpfeil symbolisch dargestellt. Der erste säulenendbereich 3 ist als eine Innensäule und der zweite Säulenendbereich 4 ist als eine Außensäule ausgestaltet, d.h. bei einem Zusammenschieben der Säulenbereiche 3,4,5 wird der erste Säulenendbereich 3 in den mittleren Säulenbereich 5 eingeschoben und der mittlere Säulenbereich 5 wird in den zweiten Säulenendbereich 4 eingeschoben. Die Säulen bereiche 3,4,5 können z.B. rohrförmig mit einem runden Querschnitt ausgestaltet sein. Es eignen sich jedoch auch offene, z.B. U-förmige Profile als Säulenbereiche 3,4,5.In FIG. 1 a telescopic column 1 is shown, The column 1 has a first and a second column end region 3, 4, wherein the first 3 and the second column end region 4 are connected to one another via a central column region 5 and the column regions 3, 4, 5 are telescopic in the longitudinal axis direction of the column 1. The telescoping is shown symbolically in the figure by a double arrow. The first column end region 3 is designed as an inner column and the second column end region 4 is configured as an outer column, ie, when the column regions 3, 4, 5 are pushed together, the first column end region 3 is inserted into the middle column region 5 and the middle column region 5 becomes the second column end region 3 Pillar end 4 inserted. The columns ranges 3,4,5 may be configured, for example, tubular with a round cross-section. However, there are also open, eg U-shaped profiles as column areas 3,4,5.

Die Säule 1 weist einen Schubstangenantrieb mit einer ersten Schubstange 8 und einer zweiten Schubstange 9 und einer Schubstangenverschiebungsubertragungsvorrichtung 10 auf. Der Schubstangenantrieb ist innerhalb der Säulenbereiche 3,4,5 angeordnet.The column 1 has a push rod drive with a first push rod 8 and a second push rod 9 and a push rod displacement transmission device 10. The push rod drive is arranged within the column areas 3,4,5.

Durch die Schubstangenverschiebungsübertragungsvorrichtung 10 kann eine parallel zur Längsachse der Säule 1 gerichtete Verschiebung einer der Schubstangen 8,9 derart auf die jeweils andere der Schubstangen 8,9 übertragen werden, dass die Schubstangen 8,9 sich in entgegengesetzter Richtung parallel zur Längsachse der Säule 1 verschieben. Diese gegenläufigen Verschiebungen der Schubstangen 8,9 sind in der Figur durch Pfeile symbolisch dargestellt, wobei die Pfeilspitzen in die Bewegungsrichtungen der Schubstangen 8,9 beim Auseinanderziehen, bzw. -drücken der Säule 1 zeigen. Bei der Schubstangenverschiebungsübertragungsvorrichtung 10 sind zwei z.B. als Zahnräder ausgebildete Umlaufräder 12,13 am mittleren Säulenbereich 5 um ihren Mittelpunkt derart drehbar befestigt, dass der Abstand zwischen den Zahnrädern durch das Teleskopieren der Säule 1 nicht verändert wird.By the push rod displacement transmission device 10, a directed parallel to the longitudinal axis of the column 1 displacement of one of the push rods 8.9 are transferred to the other of the push rods 8.9 so that the push rods 8.9 move in the opposite direction parallel to the longitudinal axis of the column 1 , These opposing displacements of the push rods 8,9 are shown symbolically in the figure by arrows, the arrowheads in the directions of movement of the push rods 8,9 when pulling apart, or pressures of the column 1 show. In the push rod displacement transmission device 10, two planetary gears 12, 13 formed, for example, as toothed wheels, are rotatably mounted about their center at the central pillar region 5 such that the distance between the toothed wheels is not changed by the telescoping of the pillar 1.

Dazu ist innerhalb des mittleren Säulenbereichs 5 eine Halterung 15 vorgesehen, die an einer Basisplatte 16 des mittleren Säulenbereichs 5 mittels einer Schraube 20 befestigt ist. Die Schubstanqenverschiebungsübertragungsvorrichtung 10 ist also über die Umlaufräder 12, 13 ortsfest am mittleren Säufenbereich 5 befestigt.For this purpose, a holder 15 is provided within the central column region 5, which is fastened to a base plate 16 of the central column region 5 by means of a screw 20. The Schubstanqenverschiebungsübertragungsvorrichtung 10 is thus fixed on the planet gears 12, 13 fixed to the middle Säufenbereich 5.

Um die Umlaufräder 12, 13 herum sind z.B. als eine Kette ausgebildete Umlaufmittel 22 angeordnet, die beim Drehen der Umlaufräder 12, 13 um die dieselben herum umläuft. Die Kette, bzw. die Umlaufmittel 22, ist/sind dabei in einer ovalen Form um die Zahnräder herumgelegt. Die Umlaufmittel 22 haben also eine geschlossene Form und sind derart gespannt, dass sie nicht durchrutschen können. Die Schubstangen 8,9 sind an der Kette 22 derart befestigt, dass die Schubstangen 8,9 sich beim Umlaufen der Kette 22 in entgegengesetzter Richtung parallel zur Längsachse der Säule 1 verschieben. Dazu ist jeweils ein freies Ende der Schubstangen 8,9 auf jeweils einer der gegenüberliegenden Längsseiten der ovalen Form an der Kette, bzw. der Umlaufmittel 22, z.B. festgeschraubt.Around the epicyclic wheels 12, 13 are e.g. arranged as a chain circulating means 22 which rotates when turning the epicyclic wheels 12, 13 around the same. The chain, or the circulating means 22, is / are placed around the gears in an oval shape. The circulation means 22 thus have a closed shape and are so taut that they can not slip. The push rods 8.9 are attached to the chain 22 such that the push rods 8.9 move during rotation of the chain 22 in the opposite direction parallel to the longitudinal axis of the column 1. For this purpose, in each case a free end of the push rods 8,9 on each one of the opposite longitudinal sides of the oval shape on the chain, or the circulating means 22, e.g. screwed.

Die zweite Schubstange 9 ist mit dem zweiten Säulenendbereich 4 gegeneinander lagestabil verkoppelt und die erste Schubstange 8 ist mit dem ersten Säulenendbereich 3 gegeneinander lagestabil verkoppelt. Das Verkoppeln ist beispielhaft durch Verschrauben mit jeweils einer Schraube 20 dargestellt. Das Umlaufen der Kette bewirkt daher über das Verschieben der Schubstangen 8,9 ein Teleskopieren der Säulenbereiche 3,4,5 gegeneinander. Dabei läuft die zweite Schubstange 9 durch eine Öffnung in der Basisplatte 16 des mittleren Säulenbereichs 5.The second push rod 9 is coupled to the second column end region 4 in a positionally stable manner and the first push rod 8 is coupled to the first column end region 3 in a positionally stable manner with respect to one another. The coupling is exemplary by screwing with one screw 20 shown. The circulation of the chain therefore causes via the displacement of the push rods 8.9 telescoping the column areas 3,4,5 against each other. In this case, the second push rod 9 passes through an opening in the base plate 16 of the central pillar region fifth

Weiter ist innerhalb der Säulenbereiche 3,4,5 eine als Gasdruckfeder ausgeführte Druckzylindervorrichtung mit einem Druckzylinder 31, in dem ein an einem Ende einer Kolbenstange 32 angeordneter Kolben 33 geführt ist, angeordnet. Der Druckzylinder 31 ist, wie die Zahnräder 12,13 des Schubstangenantriebes, am mittleren Säulenteil 5 ortsfest befestigt, z.B. an der Basisplatte 16 des mittleren Säulenbereichs 5 mittels einer Schraube 20 festgeschraubt. Das kolbenabgewandte Ende der Kolbenstange 32 und die erste Schubstange 8 sind über eine Koppelung gegeneinander lagerstabil mit dem ersten Säulenendbereich 3 verkoppelt, d.h. beispielsweise mittels jeweils einer Schraube 20 am ersten Säulenendbereich 3 festgeschraubt. Dadurch wirkt die erste Schubstange 8 bei einer Hub- oder Senkbewegung der Kolbenstange 32 im Druckzylinder 31 als Antriebsschubstange des Schubstangenantriebs. D.h. diese Antriebsstange überträgt eine Hub- oder Senkbewegung der Kolbenstange 32 auf die umlaufende Kette 22 des Schubstangenantriebs, wodurch die Kette 22 eine Umlaufbewegung um die Zahnräder 12,13 des Schubstangenantriebs ausführt und die zweite Schubstange 9 in entgegengesetzter Richtung zu der Bewegung der Antriebsschubstange bewegt wird, so dass die Säulenbereiche 3,4,5 der Säule 1 synchron ineinander oder auseinander heraus teleskopiert werden.Furthermore, a pressure cylinder device designed as a gas pressure spring is arranged within the column areas 3, 4, 5 with a pressure cylinder 31, in which a piston 33 arranged at one end of a piston rod 32 is guided. The pressure cylinder 31 is, like the gears 12,13 of the push rod drive, fixedly attached to the central column part 5, e.g. screwed to the base plate 16 of the central column area 5 by means of a screw 20. The piston-remote end of the piston rod 32 and the first push rod 8 are coupled to one another in a storage-stable manner with the first column end region 3 via a coupling, i. For example, screwed by means of one screw 20 at the first column end 3. As a result, the first push rod 8 acts on a lifting or lowering movement of the piston rod 32 in the pressure cylinder 31 as a drive push rod of the push rod drive. That this drive rod transmits a lifting or lowering movement of the piston rod 32 on the rotating chain 22 of the push rod drive, whereby the chain 22 performs a circulation movement about the gears 12,13 of the push rod drive and the second push rod 9 is moved in the opposite direction to the movement of the drive push rod so that the column areas 3,4,5 of the column 1 are synchronously telescoped into or out of each other.

Am kolbenabgewandten Ende der Kolbenstange 32 der Gasdruckfeder ist eine Gaskolbenbetätigungsvorrichtung 40 symbolisch dargestellt. Durch deren Betätigung ist eine Position des Kolbens 33 im Druckzylinder 31 arretierbar und/oder änderbar, Die Gasdruckfeder ist also als blockierbare Gasdruckfeder ausgestaltet, wie sie z.B. in Bürostühlen verwendet wird.At the piston end facing away from the piston rod 32 of the gas spring, a gas piston actuating device 40 is shown symbolically. By the operation of which is a position of the piston 33 in the pressure cylinder 31 can be locked and / or changed, so the gas spring is configured as a lockable gas spring, as used for example in office chairs.

Die Gaskolbenbetätigungsvorrichtung 40 bildet also eine lösbare Arretiervorrichtung der Säule 1 aus, mittels derer eine Position mindestens eines der Säulenbere1che 3,4,5 relativ zu einem anderen der Säulenbereiche 3,4,5 arretierbar ist.The gas piston actuating device 40 thus forms a releasable locking device of the column 1, by means of which a position of at least one of the Säulenbere1che 3,4,5 relative to another of the column areas 3,4,5 can be locked.

In Figur 2 ist eine Ausführungsform einer teleskopierbaren Säule 41 gemäß Figur 1 dargestellt, wobei jedoch zusätzlich Verschiebungsübertragungsmittel 50 vorgesehen sind. Mittels der Verschiebungsübertragungsmittef 50 kann eine Verschiebung der Schubstangen 8,9 der Säulen in eine Drehung einer Welle übertragen werden. Letzteres dient dazu, eine Synchronisation des Zusammenschiebens oder des Auseinanderziehens beim Teleskopieren von zwei teleskopierbaren Säulen zu erreichen.In FIG. 2 is an embodiment of a telescopic column 41 according to FIG. 1 however, displacement transfer means 50 are additionally provided. By means of the displacement transmission means 50, a displacement of the push rods 8, 9 of the columns can be transmitted in one turn of a shaft. The latter serves to achieve synchronization of telescoping or telescoping when telescoping two telescoping columns.

Diese Ausführungsform der teleskopierbaren Säule ist insbesondere zur Verwendung in einem erfindungsgemäßen Möbelunterbau, wie er z.B. in Figur 3 dargestellt ist, geeignet,This embodiment of the telescopic column is in particular for use in a furniture substructure according to the invention, as in eg FIG. 3 is shown, suitable,

Mittels der Verschiebungsübertragungsmittel 50 wird die Relativbewegung des mittleren Säulenbereichs 5 zum ersten Säulenendbereich 3 beim Teleskopieren der Säule in eine Drehbewegung eines im Bereich des freien Endes des ersten Säulenendbereichs 3 um seinen Mittelpunkt drehbar am ersten Säulenendbereich 3 befestigten, Zahnrades 52 übersetzt. Zahnräder sind in den Figuren ohne Zähne symbolisch gezeichnet. Diese Relativbewegung entspricht der Umlaufbewegung der Kette 22 der Schubstangenverschiebungsübertragungsvorrichtung 10 des Schubstangenantriebes. Es wird also auch die Umlaufbewegung der Kette 22 des Schubstangenantriebes auf das Zahnrad 52 übertragen,By means of the displacement transfer means 50, the relative movement of the central pillar region 5 to the first pillar end region 3 when telescoping the pillar is translated into a rotational movement of a toothed wheel 52 fastened to the first pillar end region 3 in the region of the free end of the first pillar end region 3 about its center. Gears are symbolically drawn in the figures without teeth. These Relative movement corresponds to the orbital movement of the chain 22 of the push rod displacement transmission device 10 of the push rod drive. It is therefore also the circulation movement of the chain 22 of the push rod drive is transmitted to the gear 52,

Dazu weisen die Verschiebungsübertragungsmittel 50 einen Zahnantrieb mit einem um ein erstes und ein zweites Zahnrad 52,53 umlaufenden Zahnriemen 55 oder einer Kette auf. Das erste Zahnrad 52 ist das genannte, mit seiner Drehachse am freien Ende des ersten Säulenendbereichs 3 montierte Zahnrad 52. Das zweite Zahnrad 53 ist ebenfalls am ersten Säulenendbereich 3 montiert, so dass sich der Abstand der Zahnräder 52,53 voneinander beim Teleskopieren der Säule nicht verändert. Am Zahnriemen 55, bzw. an der Kette, sind Schubstangenmittel 60 befestigt, die mit einem freien Ende starr an den mittleren Säulenbereich 5 der Säule gekoppelt sind. Diese Schubstangenmittel 60 sind bei der dargestellten Säule vom Druckzylinder 31 der Gasdruckfeder ausgebildet. Der Druckzylinder 31 ist einenendes am Basisteil 16 des mittleren Säulenbereiches 5 festgeschraubt und anderenendes ist er mittels eines Befestigungsbleches 62 am Zahnriemen 55 bzw. an der Kette befestigt. Dadurch ist die genannte starre Koppelung erreicht.For this purpose, the displacement transmission means 50 a toothed drive with a about a first and a second gear 52,53 circulating toothed belt 55 or a chain. The first gear 52 is the aforementioned gear 52 mounted with its rotation axis at the free end of the first column end portion 3. The second gear 53 is also mounted on the first column end portion 3, so that the distance of the gears 52, 53 from each other when telescoping the column is not changed. On the toothed belt 55, or on the chain, push rod means 60 are fixed, which are rigidly coupled with a free end to the central pillar region 5 of the column. These push rod means 60 are formed in the column shown by the pressure cylinder 31 of the gas spring. The pressure cylinder 31 is at one end screwed to the base part 16 of the central pillar region 5 and the other end it is fastened by means of a mounting plate 62 on the toothed belt 55 and on the chain. As a result, said rigid coupling is achieved.

Die Figur 3 zeigt einen Tisch mit einem erfindungsgemäßen Möbelunterbau 70 in einer perspektivischen Darstellung. Der Möbleunterbau 70 weist zwei teleskopierbare Säulen 41,71 auf, die als Möbelbeine, d.h. als Tischbeine, verwendet sind. Dabei ist eine Tischplatte 72 an den freien Enden der Säulen 41,71 befestigt. Die teleskopierbare Säule 41 des ersten Möbelbeins ist gemäß der teleskopierbaren Säule aus Figur 2 ausgebildet.The FIG. 3 shows a table with a furniture substructure 70 according to the invention in a perspective view. The Möbleunterbau 70 has two telescopic columns 41.71, which are used as furniture legs, ie as table legs. In this case, a table top 72 is attached to the free ends of the pillars 41,71. The telescopic column 41 of the first furniture leg is made according to the telescopic column FIG. 2 educated.

Die teleskopierbare Säule 71 des zweiten Möbelbeins ist ebenfalls gemäß der teleskopierbaren Säule aus Figur 2 ausgebildet, wobei jedoch keine Gasdruckfeder vorhanden ist.The telescopic column 71 of the second furniture leg is also according to the telescoping column FIG. 2 formed, but with no gas spring is present.

Insbesondere weist die Säule 71 des zweiten Möbelbeins auch Verschiebungsübertragungsmittel 50a mit einem Zahnantrieb auf. Der Zahnantrieb wird von einem um ein erstes und ein zweites Zahnrad 52a,53a umlaufenden Zahnriemen 55a ausgebildet.In particular, the pillar 71 of the second furniture leg also has displacement transmission means 50a with a gear drive. The tooth drive is formed by a toothed belt 55a revolving around a first and a second toothed wheel 52a, 53a.

Die an dem Zahnriemen 55a befestigten Schubstangenmittel 60a der Verschiebungsübertragungsmittel der Säule 71 des zweiten Möbelbeins sind mit einem freien Ende starr an den mittleren Säulenbereich 5 der Säule gekoppelt, nämlich an die Basisplatte 16 des mittleren Säulenbereichs 5 z.B. angeschweißt.The push rod means 60a of the translational transfer means of the pillar 71 of the second furniture leg fixed to the toothed belt 55a are rigidly coupled with a free end to the central pillar region 5 of the pillar, namely the base plate 16 of the central pillar region 5 e.g. welded.

Der Möbelunterbau 70 weist Synchronisationsmittel auf, mittels derer die Verschiebung der Schubstangen 8,9 der teleskopierbaren Säule 41 des ersten Möbelbeins mit der Verschiebung der Schubstangen 8a,9a der teleskopierbaren Säule 71 des zweiten Möbelbeins miteinander verkoppelt sind. Dabei erzwingt die Verschiebung der Schubstangen 8,8a,9,9a einer der Säulen 41,71 eine entsprechende Verschiebung der Schubstangen 8,8a,9,9a der jeweils anderen teleskopierbaren Säule 41,71. Die Schubstangen 8a,9a der zweiten Säule 71. sind dabei, genau wie jene der ersten Säule 41, über eine ortsfest am mittleren Säulenbereich 5 befestigte Schubstangenverschiebungsübertragungsvorrichtung 10a, mit Umlaufrädern 12a, 13a und um die Umlaufräder 12a, 13a herum angeordneten, z.B. als eine Kette ausgebildeten Umlaufmitteln 22a, miteinander verkoppelt.The furniture base 70 has synchronization means, by means of which the displacement of the push rods 8.9 of the telescopic column 41 of the first furniture leg with the displacement of the push rods 8a, 9a of the telescopic column 71 of the second furniture leg are coupled together. The displacement of the push rods 8,8a, 9,9a one of the columns 41,71 forces a corresponding displacement of the push rods 8,8a, 9,9a of each other telescopic column 41,71. The push rods 8a, 9a of the second column 71 are, just like those of the first column 41, via a fixed to the central column region 5 fixed push rod displacement transmission device 10a, with epicyclic wheels 12a, 13a and the planetary gears 12a, 13a around arranged, for example, formed as a chain circulating means 22a, coupled together.

Es wird so eine Synchronisation des Zusammenschiebens oder des Auseinanderziehens beim Teleskopieren der zwei teleskopierbaren Säulen 41,71 erreicht.It is thus achieved a synchronization of pushing together or pulling apart when telescoping the two telescopic columns 41,71.

Die Synchronisationsmittel weisen eine die erste teleskopierbare Säule 41 und die zweite teleskopierbare Säule 71 verbindende, um ihre Längsachse drehbar gelagerte Welle 80 auf. Die Welle 80 verbindet in einem, an die freien Enden der ersten Säulenbereiche 3 angrenzenden Bereich der ersten Säulenbereiche 3 die teleskopierbaren Säulen 41,71. Die Welle 80 verläuft also in einem Bereich unmittelbar unter der Tischplatte 72.The synchronization means comprise a shaft 80 which connects the first telescopic column 41 and the second telescopic column 71 and is rotatably mounted about its longitudinal axis. The shaft 80 connects the telescopic columns 41, 71 in a region of the first pillar regions 3 which adjoins the free ends of the first pillar regions 3. The shaft 80 thus extends in an area immediately below the table top 72nd

Mittels der Verschiebungsübertragungsmittel 50,50a der Säulen 41,71 ist eine Verschiebung der jeweiligen Schubstangen 8,8a,9,9a einer der Säulen 41,72 jeweils in eine Drehung der Welle 80 übertragbar. Dazu ist jeweils das erste Zahnrad 52,52a des Zahnantriebs der Verschiebungsübertragungsmittel 50,50a mit seiner Drehachse an jeweils einem freien Ende der Welle 80 verdrehungssteif montiert.By means of the displacement transfer means 50,50a of the columns 41,71, a displacement of the respective push rods 8,8a, 9,9a one of the columns 41,72 each in a rotation of the shaft 80 can be transferred. For this purpose, each of the first gear 52,52a of the gear drive of the displacement transmission means 50,50a with its axis of rotation mounted on each free end of the shaft 80 torsionally rigid.

Wird also eine der Säulen 41,71 z.B. auseinandergezogen, d.h. die Tischhöhe vergrößert, so werden die Schubstangen 8,8a,9,9a in dieser Säule 41,71 gegenläufig auseinandergezogen. Es folgt daraus eine Verschiebung der Säulenbereiche 3,4,5 gegeneinander. Die Verschiebung des mittleren Säulenbereichs 5 gegen den ersten Säulenendbereich 3 wird über die Verschiebungsübertragungsmittel 50,50a der jeweiligen Säule 41,71 in eine Drehung des ersten Zahnrades 52,52a des Zahnantriebs der Verschiebungsübertragungsmittel 50,50a und damit in eine Drehung der Welle 80 umgesetzt. Diese Drehung der Welle 80 erzwingt wiederum eine Verschiebung des mittleren Säulenbereichs 5 der jeweils anderen Säulen 41,71 und damit ein synchronisiertes Teleskopieren der beiden Säulen 41,71, nämlich beim Auseinanderziehen ein synchronisiertes Auseinanderziehen und beim Zusammenschieben ein synchronisiertes Zusammenschieben beider Säulen 41,71.Thus, if one of the columns 41, 71 is pulled apart, ie the table height is increased, the push rods 8, 8 a, 9, 9 a are pulled apart in opposite directions in this column 41, 71. It follows a shift of the column areas 3,4,5 against each other. The displacement of the central pillar region 5 against the first pillar end region 3 is converted via the displacement transfer means 50, 50 a of the respective pillar 41, 71 into a rotation of the first toothed wheel 52, 52 a of the tooth drive Displacement transfer 50,50a and thus converted into a rotation of the shaft 80. This rotation of the shaft 80 in turn forces a displacement of the central column area 5 of the other columns 41,71 and thus a synchronized telescoping of the two columns 41,71, namely a synchronized pulling apart when pulling apart and a synchronized pushing together of both columns 41,71 when pushed together.

Die Erfindung beschränkt sich nicht auf den vorstehend angegebenen Ausführungsbeispiel, Vielmehr ist eine Anzahl von Varianten denkbar, welche auch bei grundsätzlich anders gearteter Ausführung von den Merkmalen der beanspruchten Erfindung Gebrauch machen.The invention is not limited to the above-mentioned embodiment, but rather a number of variants are conceivable, which make use of the features of the claimed invention even with fundamentally different type of execution.

Claims (13)

  1. Furniture substructure (70) comprising at least one first furniture leg, wherein at least the first furniture leg has a telescopic column (41), comprising
    - a first and a second column end area (3, 4), wherein the first and the second column end area (3, 4) are connected to each other via a central column area (5), and the column areas (3, 4, 5) are telescopic with respect to each other in the direction of the longitudinal axis of the column (41), comprising
    - a connecting rod drive with a first and a second connecting rod (8, 9) and a
    connecting rod shifting transmission device (10) designed to transmit a shifting motion of one of the connecting rods (8, 9) in a direction parallel to the longitudinal axis of the column (41) to the respective other connecting rod (8, 9) in such a manner that the connecting rods (8, 9) are shifted in opposite directions parallel to the longitudinal axis of the column (41), and comprising
    - a pressure cylinder device comprising a pressure cylinder (31) in which a piston (33) is guided, which is arranged at an end of a piston rod (32), wherein
    the pressure cylinder (31) and the connecting rod shifting transmission device (10) of the connecting rod drive are stationarily mounted to the central column part (5), and the second connecting rod (9) is coupled with the second column end area (4) such that they are positionally stable with respect to each other,
    characterized in that
    the end of the piston rod (32) facing away from the piston and the first connecting rod (8) are coupled with the first column end area (3) in a positionally stable manner with respect to each other via a coupling in such a manner that the first connecting rod (8) acts as a driving connecting rod of the connecting rod drive during a lifting or lowering motion of the piston rod (32) in the pressure cylinder, and that a second furniture leg is designed as a telescopic column (71), comprising
    - a first and a second column end area (3, 4), wherein the first and the second column end area (3, 4) are connected to each other via a central column area (5) and the column areas (3, 4, 5) are telescopic with respect to each other in the direction of the longitudinal axis of the column (71), comprising
    - a connecting rod drive with a first and a second connecting rod (8a, 9a) and a
    connecting rod shifting transmission device (10a) designed to transmit a shifting motion of one of the connecting rods (8a, 9a) in a direction parallel to the longitudinal axis of the column (71) to the respective other connecting rod (8a, 9a) in such a manner that the connecting rods (8a, 9a) are shifted in opposite directions parallel to the longitudinal axis of the column (71), wherein
    the connecting rod shifting transmission device (10a) of the connecting rod drive is stationarily mounted to the central column part (5), and the first connecting rod (8a) is coupled with the first column end area (3) in a positionally stable manner via a coupling, and
    the second connecting rod (9a) is coupled with the second column end area (4) such that they are positionally stable with respect to each other, and wherein
    synchronization means (80) are provided which are designed to couple the shifting motion of the connecting rods (8, 9) of the telescopic column (41) of the first furniture leg with the shifting motion of the connecting rods (8a, 9a) of the telescopic column (71) of the second furniture leg in such a manner that the shifting motion of the connecting rods (8, 8a, 9, 9a) of one of the columns (41, 71) enforces a corresponding shifting motion of the connecting rods (8, 8a, 9, 9a) of the other telescopic column (41, 71).
  2. Furniture substructure according to claim 1,
    characterized in that
    the connecting rod shifting transmission device (10a) of the column (71) of the second furniture leg comprises circulation means (22a), preferably a chain or a toothed belt, which are arranged for circulation around two planet wheels (12a, 13a), preferably toothed wheels,
    wherein the connecting rods (8a, 9a) are mounted to the circulation means (22a) in such a manner that the connecting rods (8a, 9a) are shifted parallel to the longitudinal axis of the column (71) of the second furniture leg upon circulation in opposite directions.
  3. Furniture substructure according to one of the claims 1 to 2, characterized in that
    each telescopic column (41, 71) has shifting transmission means (50, 50a) and
    the synchronization means have a shaft (80) that connects the first and the second telescopic column (41, 71) and is disposed to be rotatable about its longitudinal axis, wherein
    the shifting motion of the respective connecting rods (8, 8a, 9, 9a) of one of the columns (41, 71) can, in each case, be transferred into a rotational motion of the shaft (80) via the shifting transmission means (50, 50a).
  4. Furniture substructure according to claim 3, characterized in that each shifting transmission means (50, 50a) comprises a gear drive with a toothed belt (55, 55a) or a chain, which circulates around a first and a second toothed wheel (52, 52a, 53, 53a), wherein
    each first toothed wheel (52, 52a) is mounted with its axis of rotation to a respective free end of the shaft (80) and the second toothed wheel (53, 53a) is mounted to the respective first column end area (3), and wherein connecting rod means (60, 60a) are mounted to the toothed belt (55, 55a) or the chain, one free end of which is rigidly coupled with the central column area (5) of the respective column (41, 71).
  5. Furniture substructure according to any one of the claims 1 to 4, characterized in that
    the telescopic column of the second furniture leg is designed with a pressure cylinder device in accordance with the first furniture leg.
  6. Furniture substructure according to any one of the claims 1 to 5, characterized in that
    in at least one of the telescopic columns (41, 71)
    the connecting rod shifting transmission device (10) comprises circulation means (22), preferably a chain or a toothed belt, which are arranged for circulation around two planet wheels (12, 13), preferably toothed wheels, wherein one respective free end of the connecting rods (8, 9) is mounted to the circulation means (22) in such a manner that the connecting rods (8, 9) are shifted parallel to the longitudinal axis of the column (41) upon circulation in opposite directions.
  7. Furniture substructure according to any one of the claims 1 to 6, characterized in that
    in at least one of the telescopic columns (41, 71)
    the column has a releasable locking device (40), designed to lock the position of at least one of the column areas (3, 4, 5) relative to another one of the column areas (3, 4, 5).
  8. Furniture substructure according to any one of the claims 1 to 7, characterized in that
    in at least one of the telescopic columns (41, 71)
    the pressure cylinder device is designed as a gas pressure spring.
  9. Furniture substructure according to any one of the claims 7 to 8, characterized in that
    in at least one of the telescopic columns (41, 71)
    the gas pressure spring is designed as a lockable gas pressure spring, wherein a gas piston actuating device is provided as a locking device (40) at the end of the piston rod (32) facing away from the piston, which is arranged to lock and/or change a position of the piston in the gas pressure cylinder through actuation thereof.
  10. Furniture substructure according to any one of the claims 1 to 9, characterized in that
    in at least one of the telescopic columns (41, 71)
    the first column end area (3) is designed as an inner column and the second column end area (4) is designed as an outer column.
  11. Furniture substructure according to claim 10,
    characterized in that
    in at least one of the telescopic columns (41, 71)
    the positionally stable coupling of the end of the piston rod (32) facing away from the piston with the driving connecting rod is realized through mounting the end of the piston rod (32) facing away from the piston and the driving connecting rod to the inner column (3), and the second connecting rod (9) is stationarily mounted to the outer column (4).
  12. Table comprising a furniture substructure (70) according to any one of the claims 1 to 11,
    characterized in that
    a table top (72) is mounted to the free ends of the first column end areas (3) of the furniture legs.
  13. Table according to claim 12,
    characterized in that
    the furniture substructure (70) is designed in accordance with one of the claims 3 to 11, and the shaft (80) connects the telescopic columns (41, 71) in an area of the first column areas (3) bordering the free ends of the first column areas (3).
EP20100151954 2009-02-02 2010-01-28 Furniture substructure Active EP2213198B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200910007125 DE102009007125B4 (en) 2009-02-02 2009-02-02 vanity unit

Publications (2)

Publication Number Publication Date
EP2213198A1 EP2213198A1 (en) 2010-08-04
EP2213198B1 true EP2213198B1 (en) 2012-11-14

Family

ID=42173791

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20100151954 Active EP2213198B1 (en) 2009-02-02 2010-01-28 Furniture substructure

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EP (1) EP2213198B1 (en)
DE (1) DE102009007125B4 (en)
DK (1) DK2213198T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3973817A1 (en) * 2020-09-23 2022-03-30 Kesseböhmer Holding KG Supporting device for a height-adjustable table frame

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010060153B3 (en) * 2010-10-25 2012-02-02 Veyhl Gmbh Pivotable shaft arrangement for supporting device of e.g. seating furniture, has multiple winding sections axially arranged one after another on rotary shaft and comprising different cross-sections
ITCO20100061A1 (en) * 2010-11-12 2012-05-13 Giulio Manzoni MULTIPLIER OF MOTORCYCLE WITH ENERGY SAVING APPLIED FOR LINEAR SYSTEMS AT AT LEAST THREE STAGES.
EP3035821B1 (en) 2013-08-19 2018-03-14 Ergotron, Inc. Height adjustable desk system and method
DE102015207351B4 (en) 2015-04-22 2021-10-21 Veyhl Gmbh Height-adjustable table frame and table
CN206434000U (en) * 2016-09-07 2017-08-25 可提雅实业有限公司 Vapour-pressure type synchronization lifting table structure
CN112189997A (en) * 2020-11-11 2021-01-08 湖南瑞奇电器有限公司 Heating table with automatic lifting function
CN114403596B (en) * 2022-01-25 2022-10-04 苏惠玲 Base for intelligent furniture wardrobe

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20311574U1 (en) * 2003-07-25 2004-11-25 Herbert Grüttner GmbH & Co. KG Telescopic table leg has lift/lower mechanism consisting of upright tube, a load-bearing lance, a winch cable and drive rod
DE102007025215B4 (en) * 2007-05-31 2009-04-30 Kesseböhmer Produktions GmbH & Co. KG Height-adjustable column, especially for tables

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3973817A1 (en) * 2020-09-23 2022-03-30 Kesseböhmer Holding KG Supporting device for a height-adjustable table frame
US11607034B2 (en) 2020-09-23 2023-03-21 Kesseböhmer Holding Kg Supporting device for a height adjustable table frame

Also Published As

Publication number Publication date
DE102009007125A1 (en) 2010-08-12
DK2213198T3 (en) 2013-02-11
EP2213198A1 (en) 2010-08-04
DE102009007125B4 (en) 2012-01-19

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