EP0830825B1 - Linkage element for a furniture frame, assembling kit for a furniture support and construction set for assembling a piece of furniture - Google Patents

Abstract

The modular table may be used in an office. It has several side frame sections (4) which may be joined together end-to-end by short locking pieces which may fit into slots in the top surface. Side frames of any desired length may thus be built up. The side frames may be joined at intervals by cross-frames (5) which help to support rectangular table-top sections (17), legs (6) may be attached to the frame sections at intervals to support the table.

Description

The invention relates to a coupling element for assembly a furniture frame or furniture frame, in particular a workbench frame, according to the preamble of claim 1 (see FR-A-2 665 228). Further The invention relates to a table frame, a kit for the assembly of a furniture stand and a kit for assembling a piece of furniture, especially one Worktable.

According to the traditional design of furniture, especially of Office furniture, these usually have a fixed specification Longitudinal struts, cross members and support legs existing Frame on, on the contact surfaces and possibly side surfaces, e.g. a table top, a seat, etc., attached are. Such furniture systems are therefore in their entirety a certain situation, e.g. in terms of storage space total, available floor space, type of use, etc. individually adjusted. This affects in particular detrimental in an office environment where office furniture also have to meet changing work requirements.

An office table is described in DE 44 06 248 A1, its frame made of two parallel longitudinal profiles and there are at least two cross bridges in the longitudinal direction along the longitudinal profiles and - divided into sections - Also in the transverse direction along cross struts are movable. This displaceability in longitudinal and possibly also in the transverse direction is made by an elaborate trapezoid Tongue and groove connection between the side edges the cross bridges and the longitudinal or cross struts guaranteed. This does indeed provide some flexibility in in relation to table tops of different sizes. However, the relatively complex connection technology closes the frame further connection points for other furniture elements and thus other possible uses of this table out.

Reference is also made to DE 36 25 136 C1, which one Working table revealed, the frame of two stands, a side member and several support arms. there the profile bars of the stand are over at their top end a coupling element in the form of an elbow with the profile bars connected to the side member. Other connection options for more furniture elements than that of the stand and the side member does not have said coupling element on.

The present invention aims at the possibility to create furniture systems, especially office furniture, simple and adapt quickly to changing requirements.

The invention achieves this goal through the objects of claims 1, 6, 10 and 16. Further embodiments of the Invention are described in the dependent claims.

Thereafter, in the case of a coupling element, the above-mentioned Type provided: plug connections running in the longitudinal direction to accommodate the side members; transverse Connecting sections for receiving a cover plate, in particular table top; several offset in the transverse direction Connection points for the stand or stands different types of support elements, e.g. Container; and one or several plug connections on one or each end of the Coupling element, via which additional frame or Furniture elements can be connected by a plug connection are.

In this way the connection between all essential Elements of a piece of furniture through a central construction element, namely the coupling element according to the invention, reached. On the one hand, this makes a particularly simple, because clear, everyone can do it precise assembly of a piece of furniture possible. on the other hand a central coupling element increases the torison and bending stiffness of the furniture frame as a whole. Finally are manufacturing costs are also lower because of a large number different coupling pieces between different furniture or frame sections are omitted.

An exchange of individual components, e.g. a side member or a stand, is clear and fast feasible without disassembling the entire furniture frame to have to.

Since the coupling element according to the invention is not only used Inclusion of those essential to a furniture frame Elements, but also other frame or furniture elements, which via the front connectors are connectable. Examples of such plug-in elements are described below in connection with the invention Called construction kit.

With a Varainte there are all connection and fastening points of the coupling element symmetrical to a perpendicular arranged to the coupling element extending center line are. As a result, the coupling elements are advantageous on both sides, i.e. both as a left and right frame element usable. This applies accordingly to the remaining elements of the furniture frame according to the invention.

In a preferred variant, the plug connections are continuous clamp connections to accommodate the side members, in which each side member up to a stop inserted and via a clamping plate screwable from above is held. Such a connection point is Can be operated quickly and easily with just a few movements characterized by high stability and flexibility. Several Side members can also be placed one behind the other in the longitudinal direction be coupled together. For example, that a Side members about half in one side Clamping connection protrudes, and another side member of the other side also about half in the above Clamp connection protrudes. Both side members are over fixed a common clamping plate. It is also conceivable that a side member through a clamping connection of the coupling element is pushed completely through in case several coupling elements at a distance in a row are arranged, for example, when heavily loaded Worktables.

Especially with long or linked tables with several Tabletop sections can this clamp connection also to accommodate another interlinking support are used, which in at least two clamp connections on the coupling element from one - the side member side opposite side - to be inserted. The chaining pad serves e.g. as a support for another table top, but also for side connection, e.g. one integrated standing workplace.

The coupling sections are advantageous for connecting the Cover plate as one or more side by side and / or one behind the other arranged, transverse grooves formed, such that the cover plate is displaceable in the transverse direction is attached. Preferably, the or each groove shaped like this, e.g. trapezoidal or reverse T-shaped that a fastener at the bottom of the Cover plate is at least largely behind. Also this allows the cover plate, e.g. the table top of a work table, particularly simple and in the right position Mount on a table frame. In the assembled The table top remains in the transverse direction slidable, so that any, along a side member running cable duct is easily accessible.

The invention also provides a table frame, in particular for a work table with at least one side member and at least two coupling elements of those previously described Kind as a cross member, each with one or more Table legs are coupled, the coupling elements each on one or each of their end faces via coupling sections with coupling elements of another similar Table frame are connectable.

In this way, two or more table frames can be created over the front coupling sections of the coupling elements or link or link cross members. The Table frame according to the invention is particularly suitable for an office work table as there are changing requirements can be adapted to any required work surface. All that is required is a table frame according to the invention at its cross member coupling with another adjacent table frame to be connected, and this again in a corresponding manner with a next table frame, etc., in order to thereby create a module or kit Multiple workstation adapted to an existing space to obtain. The elements of the table frame, namely cross members, side members and table legs always have the same dimensions, i.e. you can can be manufactured, stored and transported at low cost.

Because of the front coupling of individual table frames or table frame sections is the resulting Multiple table particularly simple, clear and of anyone feasible with the desired table surface, especially work surface, mountable.

If there is an end connector on a cross member, better pair of cross beams, the table frame according to the invention open, i.e. there will be no further table frame coupled, such a connector can be useful also for coupling other frame or furniture elements be used. Examples of such plug-in elements are: e.g. footplate attachments held by a flat steel frame, Storage shelves or privacy panels.

The front coupling sections are preferably each Cross member of the table frame according to the invention as a plug connection in the form of a - transverse to the end face of the cross member and thus essentially across the edge of the table top extending - channel open on one side, in which a linking element can be used. As inexpensive The link element is a flat steel rod with a cross-section of the connector adapted cross-sectional shape. Such training the Cross beam coupling is quick in just a few steps operable, i.e. can be assembled and removed again, and is characterized by high stability and torsion or bending stiffness.

The stability of the modular multi-frame is further improved in that the concatenating element via a clamping piece arranged on the cross member with the Cross member is screwed.

In a further preferred variant, the has one-sided open plug connection on the front of the crossmember a stop at such a depth, i.e. in one Distance from the front to the rear that at fully used interlinking element each butt the coupled crossbeams with their end faces. This also facilitates the coupling of neighboring ones Table frames or frame sections, as the resulting Distance sets itself to a certain extent.

The kit character of the table frame according to the invention it corresponds to the fact that each individual table frame (section) assigned a table top or a table top section is. Still, it can be functional or for aesthetic reasons be desired, the individual table tops of the chained Frame through one of the total table surface to replace the corresponding tabletop.

Because of the several offset in the transverse direction of the cross beams Connection points for table legs can be a suitable one Position of the table leg depending on the conditions found also only after chaining several of the invention Table frames selected or later without further notice to be changed. Depending on the size and load of the chained Tables can also have additional table legs, such as in immediate vicinity of the front coupling of the table frames to be ordered.

• ein Koppelelement der zuvor genannten Art;
• wenigstens zwei Ständerbeine,
• mehrere Fußausleger - teils mit denselben, teils mit unterschiedlichen spezifische Parameter, z.B. unterschiedlicher Länge, Form, etc.,

wobei die Ständerbeine am Koppelelement über in Querrichtung versetzte Anbindungsstellen und wahlweise jeweils mit einem Fußausleger an dem unteren Ende des jeweiligen Ständerbeines lösbar verbindbar sind.The invention also provides a kit for assembling a furniture stand, two or more such stands, for example, carrying a worktop of a work table. This kit includes the following basic building blocks:

• a coupling element of the aforementioned type;
• at least two legs,
• several foot brackets - some with the same, some with different specific parameters, e.g. different length, shape, etc.,

wherein the upright legs on the coupling element can be detachably connected via connecting points offset in the transverse direction and optionally each with a foot bracket at the lower end of the respective upright leg.

With the (few) basic building blocks of the invention Kit can be different types of stands realize. A certain type of stand, depending on the found conditions also first at the place of assembly chosen or later easily into another Stand type can be converted. Adequate legroom the user is granted, for example, that one of the pillars from the front edge of the coupling element is set back what is distributed by the Stator leg connection points guaranteed in the coupling element is. Examples of stand variants, such as those by the Kit according to the invention can be realized are: Two- or four-foot stand, C-foot stand and center column stand. A two or four-legged stand can be used a few steps to a C-foot stand or a center column stand convert, as will be explained in more detail later.

The number of possible stand variants can be particularly great Advantageously increase that the legs are continuously and telescopically adjustable in height, an inner profile in an outer profile - both e.g. out Aluminum - telescopic and both profiles over one e.g. T-clamping element can be fixed against each other. The Optics is improved in that preferably one External profile surrounding and movable in the longitudinal direction Cuff is provided, which at least the height adjustment range covers.

The inner and outer profiles are preferably with an im essential round, in opposite places externally curved cross-section. Furthermore, the outer surface of the inner profile, preferably several, longitudinal ribs and / or recesses intended. This allows the inner profile on the one hand easy, i.e. without wedging, lead and stepless in height position and on the other hand with a fixed position Clamp securely with the outer profile.

The stand assembly according to the invention preferably comprises also different panels for mounting between two legs are provided. Such an aperture is the width of the distance between the stand modules adapted to the coupling element and can preferably be in adjust the height. There are two panel sections for this provided, one aperture section in the other aperture section is guided in a rail shape.

A support leg of the invention is preferably Stand kit via a connection device with a first element, a second element and a connecting element detachably connectable with other components is. The first element is directly on the support leg and the second element is arranged on the respective module or integrally formed with this. The first element and the connecting element have lugs / recesses, which can be brought into mutual engagement in the manner of grooves or fins are and reach behind each other, such that the first element and the connecting element relative to each other displaceable in one direction (direction of displacement) and are fixed in directions transverse to the direction of displacement. Furthermore, the second element is designed so that it is supported on the first and with the connecting element is designed to be coupled. To fix the connection is the distance between the second element and the connecting element changeable in the support direction.

This connecting device has the advantage that the stand leg coupled with various other building blocks can be, the coupling position along the extension in the direction of displacement of the lugs / recesses is essentially freely selectable. Preferably run e.g. T-shaped lugs / recesses on the outer Surface almost over the entire circumference of the support leg and offer several connection options in different Angles to the leg. A sector section can be used for the connection e.g. for a foot boom, however if necessary also for a leg room cover, a counter cover or can be used for an application panel. Another one Sector section offers the connection option for a leg compartment cover or a cable duct cover for a C-foot stand. In addition, there is a frictional engagement in the fixed state Connection both between the lugs / protrusions of the first element of the support leg and the connecting element as well as between the first element and before the second element. The coupling thus points to simple Build up a high stability.

• wenigstens zwei Koppelelemente der zuvor beschriebenen Art als Querträger;
• mehrere Längsträger teils derselben, teils unterschiedlicher spezifischer Parameter, z.B. mit unterschiedlichen Längen, Profilstärken, etc.;
• mehrere Ständer, welche nach dem oben genannten Ständer-Bausatz aufgebaut sind;

wobei ausgewählte Längsträger und Ständer über ein oder mehrere Koppelelemente wieder lösbar zu dem Möbelstück verbindbar sind.Furthermore, the invention proposes a kit for assembling a piece of furniture, in particular a work table, the frame of which has at least one side member and at least two cross members, on each of which one or more stands are arranged, with the following components:

• at least two coupling elements of the type described above as cross members;
• several longitudinal members, partly the same, partly different specific parameters, eg with different lengths, profile thicknesses, etc .;
• several stands, which are constructed according to the above-mentioned stand kit;

selected longitudinal members and stands can be releasably connected to the piece of furniture again via one or more coupling elements.

This kit offers with its basic building blocks Possibility of planning a piece of furniture both Production, but also after installation of the piece of furniture easily and quickly adapted to changing requirements can be: Depending on the boundary conditions of a found Situation - e.g. with regard to available space, Job requirement, job type, etc. - will be the mentioned basic building blocks of different specific Parameters selected and using one or more coupling elements assembled to the desired furniture frame.

The variability of the proposed system continues advantageously increased by the fact that different types Clip-on modules are provided, which are via the plug-in connection one or more coupling elements on the front e.g. can be connected via a flat steel frame. Such Clip-on elements are e.g. a footwell plug-in plate, a Storage shelf or a privacy plate. As required the plug-in elements on both ends of the Couple the coupling element and, if necessary, the height align using a leveling screw.

Especially with work tables in an office, it makes sense to electrical cables for the electrification of the work table to run uniformly in a so-called cable duct. Therefor the kit according to the invention sees several in the longitudinal direction running channel channels, each with their Grasp the rear edge of one of the side members and if necessary additionally on the front edge over a bolt-shaped projection engage in a groove on the coupling element. On such cable duct is advantageous from supporting elements held the furniture frame according to the invention. Furthermore it offers enough space for any excess cable lengths. Different channel channels are preferred constructed in modular form from plug-in elements.

• eine hohe Flexibilität durch den modularen Aufbau;
• ein sehr stabiles Möbelgestell einerseits und eine hohe Wandelbarkeit des Gestells mit den genannten Ständer-Bausteinen andererseits;
• keine linken oder rechten Gestell- bzw. Ständerteile;
• leichte, fast werkzeugfreie Montage;
• vereinfachte(r) Lagerhaltung und Transport;
• einfache Elektrifizierung etwa eines Arbeitsplatzes in Verbindung mit einer guten Zugänglichkeit des Kabelkanals aufgrund der verschiebbaren Abdeckplatte; und
• eine Vielzahl von Anbindungsmöglichkeiten z.B. an den Ständerbeinen aufgrund der flexiblen Verbindungstechnik.

Weitere Vorteile und Ausgestaltungen der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele. In der Beschreibung wird auf die beigefügte schematische Zeichnung Bezug genommen. In der Zeichnung zeigen:

Fig. 1

eine perspektivische Darstellung eines erfindungsgemäßen Koppelelementes für den Zusammenbau eines Arbeitstischgestells;

Fig. 2

eine perspektivische Ansicht eines erfindungsgemäßen Arbeitstisches mit Koppelelementen nach Fig. 1;

Fig. 3

einen Teilquerschnitt durch einen Kabelkanal eines erfindungsgemäßen Arbeitstisches;

Fig. 4a,b

eine Seitenansicht auf zwei Varianten eines er findungsgemäßen Ständers;

Fig. 5a,b

eine perspektivische Ansicht (Fig. 5a) und eine Querschnittsansicht (Fig. 5b) einer Variante eines Ständerbeins;

Fig. 6a,b

eine Seiten- und Querschnittsansicht einer erfindungsgemäßen Verbindungsvorrichtung zwischen einem Ständerbein und einem Fußausleger; und

Fig. 7

eine perspektivische Gesamtübersicht eines erfindungsgemäßen Baukastens zum Zusammenbau eines Arbeitstisches;

Fig. 8

eine perspektivische Ansicht zweier erfindungsgemäßer Tischgestelle in Arbeitsaufstellung zur Verkettung derselben; und

Fig. 9

die Tischgestelle gemäß Fig. 8 im verketteten Zustand.

In summary, the furniture system according to the invention thus offers the following advantages:

• high flexibility due to the modular structure;
• a very stable furniture frame on the one hand and a high level of versatility of the frame with the mentioned stand modules on the other;
• no left or right frame or stand parts;
• easy, almost tool-free assembly;
• simplified warehousing and transport;
• simple electrification of, for example, a workplace in connection with good accessibility of the cable duct due to the sliding cover plate; and
• a variety of connection options, e.g. on the uprights due to the flexible connection technology.

Further advantages and refinements of the invention result from the following description of preferred exemplary embodiments. In the description, reference is made to the attached schematic drawing. The drawing shows:

Fig. 1

a perspective view of a coupling element according to the invention for the assembly of a work table frame;

Fig. 2

a perspective view of a work table according to the invention with coupling elements according to Fig. 1;

Fig. 3

a partial cross section through a cable duct of a work table according to the invention;

4a, b

a side view of two variants of a stand according to the invention;

5a, b

a perspective view (Fig. 5a) and a cross-sectional view (Fig. 5b) of a variant of a support leg;

6a, b

a side and cross-sectional view of a connecting device according to the invention between a support leg and a foot bracket; and

Fig. 7

a perspective overall view of a kit according to the invention for assembling a work table;

Fig. 8

a perspective view of two table frames according to the invention in working order for linking the same; and

Fig. 9

8 in the chained state.

In the following the invention is based on a work table described. However, this is not restrictive understand, since the present invention also readily with other pieces of furniture or furnishings a comparable furniture frame is applicable. Further are corresponding in the following exemplary embodiments Furniture parts marked with the same reference numbers.

In Fig. 1 is a bar-shaped coupling element 2 - too Adaptation bar called - shown in perspective and in the usual work schedule (left half of the picture) and in contrast, rotated 180 degrees around its longitudinal axis (right half of the picture). As from the following figures clearly shows, this coupling element 2 is below arranged on a table top and serves as a receptacle for all worktop elements, i.e. the table top mentioned, Side members and legs of the table frame as well as different attachments.

The coupling element 2 comprises two parallel through openings 4 to accommodate the side members of a table frame. The side members are from the side into the through opening 4 to one (not shown here) Stop insertable and each via a clamping plate stable fixable. This is through the openings 5 on the coupling element 2 from above on the respective side member and can be screwed to the coupling element 2. Along of the bar-shaped coupling element 2 are several Through holes 6 for connecting uprights intended. The legs are screwed, which passed through the holes 6 from top to bottom are held. As shown, the legs can in five different positions along the coupling element 2 attached and thus to the desired legroom be adjusted.

Instead of the mentioned pillars, of course other stand elements, e.g. any container containers be used. For this are in the coupling element 2 on the Bottom openings 7 provided in which suitable Adapters, e.g. made of plastic and inserted about lying on a container.

As can be seen from the left half of the picture in FIG the coupling element 2 essentially near the edge slideway perpendicular to the through holes 4 in the form of three grooves 8 arranged one behind the other. These are used for fastening that can be moved along the slideway a table top (not shown here). Therefor is the table top on its underside with protruding Bolt equipped, the head protrudes into the grooves 8 and is attacked by them. To introduce the Fasteners in the grooves 8 are at the ends of these Grooves 8 provided circular openings 9, in which the fastening bolts with their heads inserted from above and possibly in the direction of the slideway to the desired position be moved.

On the front and rear end of the coupling element 2 is a connection point 11 in each near the edge Form of a channel open on one side for the reception of Pins provided. For this, the front is in the connection point 11 e.g. an essentially rectangular one Flat steel inserted and fastened with a fixing screw. Such a flat steel serves e.g. as a carrier for Clip-on panels, privacy panels, shelves etc.

The coupling element in Fig. 1 is an extrusion casting Aluminum, in which the different connection points for rack supports, legs and attachments without interfering with the fastening stability are accommodated.

As can also be seen from the illustration in FIG. 1, the different connection points 4, 6, 7, 8 and 11 arranged on or in the coupling element 2 (e.g. symmetrical to that parallel to the through openings 4 Center line) that the coupling element 2 on both sides, i.e. either usable as left as well as right frame element is. This applies accordingly to the other interlinking elements of the frame.

Fig. 2 shows a schematic representation of the essential Parts of a work table. There is the table frame of two coupling elements 2 of the type described above, which by two parallel longitudinal beams 15 with each other are connected. The side members are in the Through openings 4 of the coupling elements 2, as in FIG. 1 described, recorded. On the coupling elements 2 are two legs 14 each at the outermost leg connection points 6 of the coupling element 2 mounted.

In a preferred variant, on the side members 15 facing away from the coupling element 2 a (not here shown) concatenation pad in the form of a parallel to Coupling element extending corner profile strip also in the Through openings 4 inserted and over the above Clamping plate together with the respective opposite one Longitudinal beam 15 screwed. The chaining pad serves as a support surface for other furniture elements, such as others Table top sections for chained tables or also the connection for one connecting to a work table Standing workstation. Preferably any extension plates in height using leveling screws align.

The resulting table frame according to FIG. 2 serves as a support surface for a (indicated by dashed lines) Table top 17, which along the slide 8 on the Coupling elements 2 in the direction of the double arrow shown P can be moved back and forth. The table frame shown further includes a cable duct for housing the electrical supply lines for the electrification of the workplace. The cable duct consists of a duct 18, which over the entire length of the longitudinal beam 15 runs and a substantially U-shaped cross section having. The cable duct also includes a horizontal one Feed pipe 19, which in the direction of the legs is set up and on an adjacent support leg e.g. via the connecting device described below Fasten.

Overall, the electrical supply line is completely horizontal and guided vertically and is possibly with an integrated Strain relief equipped.

A detailed view of the cable duct shown in FIG. 2 shows the cross section in Fig. 3. There is the table top 17 on the coupling element 2 and is - as indicated - moved transversely to provide access to the cable duct To provide. The cable duct consists of the duct 18, which with its front edge portion 20 a side member 15 rests and on the rear edge portion 22 via a bolt 23 in an upward direction engages open groove 24.

The extending over the entire length of the side members 15 Channel groove 18 therefore offers enough space for any Cable lengths. There is also a triple socket at a suitable point 25 preferably in the bottom region of the channel groove 18 Mounted at 30 degrees to the channel floor. The floor the channel groove 18 has essentially one rectangular opening through which the socket 25 protrudes and a bracket 26 which is inside the channel protrudes beyond said opening, is held. Of course, the socket 25 can also be retrofitted mounted or expanded with additional sockets.

According to the invention, different types of stands can be used with the same elements. For this, the Invention a kit for assembling a stand available for a work table, for example with the following basic components: a coupling element 2 according to Fig. 1; at least two legs 14 of the in Fig. 2 shown type and at least two foot brackets for such Stand legs.

With the help of this kit, the in Fig. 4a realize two-legged stand: Here are legs 14 at opposite outermost (in the drawing concealed) leg attachment points 6 one Coupling element 2 attached. Transfer this two-foot stand on the work table shown in Fig. 2 results a classic four-leg frame.

Due to the modular structure of the stand in Fig. 4a and the provided easily detachable connection between the The two-legged stand can be used for individual basic components simply and quickly in the C-foot stand shown in Fig. 4b convert. For this, the front, i.e. the user facing leg 14 in Fig. 4a along the coupling element 2 backwards to one of the other leg attachment points 6 (see FIG. 1). In addition, this pillar 14 and at its lower end with a Provide support in the form of a foot bracket 30. The resulting one Stand is open towards the front and is used as a C-foot stand designated. The connection of the foot extension 30 is shown enlarged in a detail. The connection technology used for this is related with the figures 6a and 6b described in more detail.

A stand cover 32 is located between the stand legs 14 provided, the width of the distance between the Legs 14 is adjusted. The stator panel 32 is made from a lower and an upper section. The upper Section is made from the lower section on the side edges encompassed such that the upper section within of the lower section is linearly displaceable. Therefore the entire stand cover 32 is adjustable in height.

The stator panel 32, for example, hides one between the support legs 14, transverse cable duct, which improves the look of the present work table becomes. With the help of the basic building blocks mentioned this Another type of stand can be realized: The legs 14 against both ends of the coupling element 2, i.e. opposite to the front parallel table edge, offset to the rear provided leg attachments 6 attached and on their both ends are equipped with a foot extension, so you get a double T-shaped, so-called center column frame. The foot extension 30, which - starting from the associated legs 14 - each in opposite Show directions (double-T), provide the necessary Stability (see reference number 78 in FIG. 7).

Here, too, can be used as a further component of the kit mentioned a stand cover for assembling a table stand 32 of the aforementioned type can be provided, which is arranged between the center pillar legs 14.

The next Figures 5a and 5b show in perspective (Fig. 5a) and in cross section (Fig. 5b) a variant of a support leg 14, which is infinitely adjustable in height. For this, the support leg 14 has an aluminum inner profile 34, which is telescopic in an aluminum outer profile 35 is performed. Both profiles 34, 35 are at Reaching the desired pull-out height using a (in Fig. 5b indicated) T-clamp 36, which with its head in a groove running in the longitudinal direction of the inner profile 34 36a engages and, for example, with the aid of two Allen screws is attracted to the outer profile 35. Both profiles 34, 35 are against each other in this way jammed and hold the support leg 14 in the predetermined Height. For the sake of better optics there is also a cuff 38 provided on the surface of the outer profile 34 is displaceable in the longitudinal direction, at least cover the height adjustment range.

According to Figure 5b, the inner profile 34 is in its cross section with two opposite, protruding radially outwards Arches 39 equipped, which of corresponding cavities are included in the outer profile 35. In this way becomes an effective contact surface 37 between inside and External profile increased when clamped. On the other hand on the section opposite the clamping section of the inner profile 34 several extending in the longitudinal direction Recesses 40 are provided to prevent unwanted wedging of the inner and outer profile in the free running state prevent. Furthermore, on the inner profile 34 in the height adjustment range A height scale 41 is attached in a legible manner.

The inner profile is directly via a central connection 42 or via an adapter to the coupling element mentioned above 2 attached. The outer profile 35 is also on his outer surface with longitudinal T-shaped Approaches or projections 44, 45 provided, such as they in connection with the in the following Figures 6a and 6b described connecting device described in more detail are. These T-shaped approaches are almost over distributed and offer the entire scope of the outer profile therefore a variety of connection options to the Stand leg 14. The T-neck 44 on the clamping section enable opposite section of the support leg 14 e.g. the connection for a foot boom, as in Fig. 4b shown, but possibly also for a leg area panel, a counter panel or for an application panel. The other T approaches 45 in the region of the clamping section of the support leg 14 offer the connection option for a leg area panel or a cable duct cover for a C-foot stand, as shown in Figure 4b.

The connecting device according to Figures 6a and 6b has a longitudinal element 51 and a transverse element 52. The Longitudinal element 51 here is the lower section of a support leg 14, as shown in Figures 2 to 5; the cross member For example, 52 is a section of a foot boom 30 according to FIG. 4b.

The longitudinal element 51 and the transverse element 52 are over one claw-shaped connecting element 53 fixed together. The longitudinal element 51 has an i.w. circular cross section on and is in the circumferential direction - as previously described - Provided with the T-shaped approaches 44 and 45. These lugs 44, 45 each extend in the longitudinal direction along the support leg 14. The front ends 54 of the Lugs 44, 45 are undercut, thus forming the head the T-shape, so that it is groove-shaped, essentially hexagonal Cavities 56 between the lugs 44, 45 result.

The connecting element 53 has on its the longitudinal element 51 facing side three (extending in the longitudinal direction) feather-like lugs 57 with their rounded Project head shape into the cavities 56 such that the lugs 57 of the connecting element 53 from the front The ends of the lugs 44, 45 of the longitudinal element 51 engage behind become. Consequently, the connecting element 53 is in the longitudinal direction displaceable relative to the longitudinal element 51, - but against displacement transverse direction, i.e. radial and / or Circumferential direction, fixed relative to the longitudinal element 51.

The connecting element 53, which is in the longitudinal direction in a channel-shaped recess 68 in the cross member 52 almost extends over the entire height of the cross member 52 two threaded bores 58 near its edges at its longitudinal ends and 59 on that on the side facing away from the approaches 57 of the connecting element 53 emerge.

The cross member 52 is connected to the connecting part 53 Lugs 44, 45 of the longitudinal element 51 coupled. This is the cross element 52 functionally into a fastening part 62 and divided a cross member 63: the fixing member 62 extends parallel to the longitudinal element 51 and has two unthreaded holes 64, 65, which are in the direction of holes 58, 59 continue. The connecting element 53 can thus with the fastening part 62 of the cross member 52nd can be screwed with two screws 66, 67.

In the fastening part 62 is also in the longitudinal direction extending recess 68 formed. The recess 68 has an i.w. trapezoidal, the cross section of the connecting element 53 adapted cross-section and takes the connecting element 53 on.

By turning the screws 66, 67 the distance of the Connecting element 53 to the transverse element 52 in the transverse direction to the longitudinal element 51, so-called support direction, reduced. The two screws 66, 57 prevent rotation and a shift in the longitudinal direction and in directions transverse for this purpose between cross element 52 and connecting element 53. A radial force acts when the screws 66, 67 are tightened on the transverse element 52 in the direction of the longitudinal element 51. The reason for this is that the connecting element 53 is opposite the longitudinal element 51 against displacement in the radial direction is fixed.

If the distance between the connecting element 53 and the Cross member 52 further reduced, the cross member moves 52 in the radial direction towards the longitudinal element 51 the cross member 52 with a shoulder 69 on outer surfaces 70 of the approaches 54 of the longitudinal element 51 supports. The cross element 52 is thus against displacement in the radial direction held; in addition it comes from tightening the Screws 66, 67 for jamming the lugs 44, 45 of the Longitudinal elements 51 with the approaches 57 of the connecting element 53. This creates a frictional connection between the contact surfaces of the lugs 44, 45 and 57. This leads to a displacement in the longitudinal direction of the Connection element 53 prevented relative to the longitudinal element 51 becomes. Because of the coupling fixed in the longitudinal direction of the connecting element 53 with the cross element 52 this also to a coupling of the longitudinal element 51 with the Cross member 52 against longitudinal displacement.

The cross member 52 is also in the other spatial directions opposite the longitudinal element 51 via the connecting element 53 fixed. This fixation is on the cross element 52 attached, longitudinally extending projections 71 supports. These extend into that of the lugs 44, 45 of the longitudinal element 51 defined cavities.

If the screws 66, 67 are loosened, the size increases Radial distance between cross member 52 and connecting element 53. The deadlock between approaches 44, 45 and 57 is solved. The connecting element 53 is based on Longitudinal element 51; thereby the cross member 52 in Radially moved away from the longitudinal element 51. The frictional Connection between the support surfaces of the cross element 52 and the outer surfaces 70 of the lugs 44, 45 of the Longitudinal elements 51 is canceled. The connecting element 53 and the cross member 52 are then relative to the longitudinal member 51 slidable in the longitudinal direction.

On the longitudinal element 51, several transverse elements of the mentioned type can be attached simultaneously, as related addressed with Fig. 5b. Furthermore, the cross element 52 by selecting appropriate cavities 56 on the longitudinal element 51 can be attached in different angular positions. By loosening the screw connection, moving the cross element 52 on the longitudinal element 51 in the longitudinal direction and then Coupling again can also the relative longitudinal position of the Cross element 52 can be changed on the longitudinal element 51. The leads to a variety of different uses this connecting device.

• wenigstens zwei Koppelelemente 2 der in Fig. 1 gezeigten Art;
• zwei Längsträger 15;
• verschiedene Ständertypen (die sich ihrerseits bausatzartig mit wenigen Bausteinen zusammenstellen lassen, vgl. hierzu Fig. 4b): Zweifuß-Ständer mit und ohne zurückversetztem vorderen Ständerbein 74, 75; C-Fuß-Ständer 76, 77 mit unterschiedlichen Ständerbeinabständen und einen Mittelfußständer 78; oder gleichwertige Bauelemente, z.B. eine Container 79;
• mehrere unterschiedliche Ansteckelemente (welche über die stirnseitige Anbindung am Klemmelement 2 über einen Flachstahl verbindbar sind): eine Fußraumansteckplatte 80, ein Ablagebord 81 und eine Sichtschutzplatte 82. Selbstverständlich lassen sich die genannten Ansteckelemente auf beiden Stirnseiten des Koppelelements 2 anbringen.

FIG. 7 shows an overview of different worktable variants, as can be realized according to the invention in the manner of a modular system with great flexibility and few work steps. The kit shown includes:

• at least two coupling elements 2 of the type shown in Fig. 1;
• two side members 15;
• Different types of stands (which in turn can be assembled as a kit with just a few building blocks, see FIG. 4b): two-legged stand with and without recessed front leg 74, 75; C-foot stand 76, 77 with different stand leg distances and a midfoot stand 78; or equivalent components, for example a container 79;
• Several different clip-on elements (which can be connected via the flat connection to the clamping element 2 via a flat steel): a footwell clip-on plate 80, a shelf 81 and a privacy screen 82. Of course, the above-mentioned clip-on elements can be attached to both ends of the coupling element 2.

Depending on the conditions regarding space and The individual modules are selected for the workplace type and releasably connected to each other. So overall offers the worktable construction kit according to the invention the possibility individual workplace situations with few and flexible modules to be implemented as desired.

Finally, Fig. 8 shows two table frames A and A 'in In connection with Fig. 2 described type for the Chaining set up in the manner according to the invention are. Each of the table frames A, A 'consists of two bar-shaped Cross beams or coupling elements 2, which by two parallel longitudinal beams 15 with each other are connected. At the bottom of the coupling elements 2 are - in the case of the front of the two table frames A, A '- two each opposite the front and rear end of the coupling elements arranged slightly offset to the rear Table legs 14 mounted. In the case of the rear of the two table frames A, A 'is on each coupling element 2 only one opposite the rear end face of the coupling elements 2 slightly offset table leg 14 attached.

Each coupling element 2 of the table frames according to the invention also serves as a central coupling element for everyone Table elements, i.e. the longitudinal beam 15, the table legs 14, the table top 17 and the still to be described Coupling sections for linking the two table frames A, A '. With regard to the design of the coupling elements 2 and the structure of the table frames A, A 'is here on the Description in connection with FIGS. 1 and 2 referenced.

On the front and rear end of each coupling element 2 is a plug connection point near the edge 11 in the form of a channel open on one side for the reception a linking element 13 in the form of a rectangular Flat steel rod provided. The connection point 11 serves the coupling or chaining of the two table frames A, A ' of the type described above, namely via the front or rear end faces of the two coupling elements 2 of a respective Table frame A, A '. For this, two concatenation elements are used 13 in the front connection points 11 of the two coupling element 2 of the first (front) table frame A pushed in up to the stop of the channel and over one the respective coupling element 2 attachable fixing screw or screwable clamping plate. Then it will second (rear) table frame A 'over the same there existing end connection points 11 of the two Coupling elements 2 coupled to the first table frame A, namely by both coupling elements 2 of the second table frame A 'via their connection points 11 to the still free Ends of the linking elements 13 of the first table frame A attached, until the one-sided open Channel and inserted using a fixing screw or Plug-in plate attached to the respective coupling element 2 become.

In the present case, two table frames A and A 'or table frame sections with one another "New" table frame with double work surface, modular coupled. Of course, everyone can still be free Front side of the coupling element 2 of the table frames A, A ' other similar table frames A, 'in the same way and how to be coupled.

Each of the table frames A, A 'shown serves as a support surface for one (indicated by a dashed line) Table top 17, which on the top of each Coupling element 2 - as described in connection with FIG. 2 - is attached.

9 shows an illustration of the invention Table frame kit the two table frames A and A 'from Fig. 8 in the assembled or chained state. In this can be seen that the front coupling sections on the Coupling elements 2 are designed in this way, in particular the Length of the linking elements 13 is selected so that in the connection points 11 used interlinking element 13 the coupling elements 2 coupled in series with their end faces almost bump into each other. On each side of the coupled Coupling elements 2 are three in total Bottom attached table legs 14. Because of the stability the resulting chaining of the table frames A and A 'can be on the middle, near the abutting Front legs arranged table legs 14 also be dispensed with in order to gain more legroom.

Claims (18)

1. A linkage element for the assembly of a furniture frame, in particular of a work desk frame, having at least one longitudinal support running in the longitudinal direction and at least two transverse supports running in the transverse direction, on each of which one or more stands are disposed, the linkage element (2) comprising:

   insertion fastenings (4) running in the longitudinal direction for housing the longitudinal supports (15) ;

   connecting sections (8) running in the transverse direction for housing a cover plate (17), in particular a desk top;

   several fastening locations (6, 7) offset in the transverse direction for the stand(s);

   characterised by:

   one or more insertion fastenings (11) on one or each end of the linkage element (2), via which additional frame or furniture elements (80; 81; 82; A; A', 13) can be coupled by a plug-in connection.
2. A linkage element according to Claim 1,
   characterised in that all fastening and attachment elements (6, 7, 8, 11) are disposed symmetrically to a centre line running perpendicularly through the linkage element (4).
3. A linkage element according to Claim 1 or 2,
   characterised in that the insertion fastenings (4) for accommodating the longitudinal supports (15) are through clamping joints, into which each longitudinal support (15) can be inserted as far as a stop and is retained via a screw-down clamping plate.
4. A linkage element according to one of the preceding Claims,
   characterised in that the desk top attachment sections (8) are designed as one or more grooves which run next to each other and/or one behind another on the upper surface of the linkage element on the top of the linkage element.
5. A linkage element according to one of the preceding Claims,
   characterised in that the insertion fastening (4) is also designed to house a further interlocking support, which can be inserted from the side opposite the longitudinal supports (15).
6. A desk underframe (A), in particular for a working desk, having:

   at least one longitudinal support (15) and

   at least two linkage elements (2) according to one of the preceding Claims as transverse supports, to each of which one or more table legs is coupled, the linkage elements (2) each being able to be connected at one or each of their ends to linkage elements (2) of a further similar table underframe (A') via linkage sections (11).
7. A desk underframe according to Claim 6,
   characterised in that each linkage section (11) as an insertion fastening is constructed in the form of a duct open on one side - at right angles to the end of the linkage element (2) - into which an interlinking element (13), e.g. a flat steel bar, can be inserted.
8. A desk underframe according to Claim 7,
   characterised in that the insertion fastening comprises a stop at such a depth that, with the interlinking element (13) inserted, linkage elements (2) coupled at the end side touch one another.
9. A desk underframe according to one of Claims 6 to 8,
   characterised by a common table top lying on the linked desk underframes (A, A').
10. A kit for the assembly of a stand (76; 77; 78) for an item of furniture, in particular for a work desk, having the following modules:

    a linkage element (2) according to one of Claims 1 to 5;

    at least two stand legs (14);

    several foot extensions (30), to some extent having the same specific parameters, to some extent having different specific parameters, it being possible for the stand legs (14) at the linkage element (2) to be detachably connected to a stand leg (14) via the fastening locations (6, 7) provided there and optionally a foot extension (30).
11. A kit according to Claim 10,
    characterised in that the stand legs (14) are continuously and telescopically height-adjustable, an inner profile (34) being telescopically guided in a outer profile (35) and both profiles being fixable in relation to each other via a clamping element (36).
12. A kit according to Claim 11,
    characterised in that the inner and outer profiles (34, 35) are constructed with a substantially round cross section which is outwardly curved at opposite locations (39).
13. A kit according to Claim 11 or 12,
    characterised in that several ribs and/or recesses (44, 45) running in the longitudinal direction are provided on the outer surface of the inner profile (34).
14. A kit according to one of Claims 10 to 14,
    characterised by height-adjustable screens (32) are provided for mounting between two stand legs (14).
15. A kit according to one of Claims 10 to 14,
    characterised by a connection device having a first element (51), a second element (52) and a connection element (53) for the releasable connection of the stand leg to other modules,

    the first element (51) and the connection element (53) comprising projections/recesses (44, 45; 57) which can be brought into mutual engagement in the manner of a tongue and groove and in so doing grasp behind each other in such a manner that the first element (51 and the connection element (53) can be displaced relative to one another in one direction (displacement direction) and are fixed in directions at right angles to the displacement direction,

    the second element (52) being constructed so that it is supported on the first element and is constructed for coupling with the connection element (53),

    and it being possible to vary the distance between second element (52) and connection element (53) in the supporting direction.
16. A construction set for the assembly of an item of furniture, the underframe of which comprises at least two longitudinal supports and at least two transverse supports, on each of which one or more stands are disposed, having the following modules:

    at least two linkage elements (2) according to one of Claims 1 to 5 as transverse supports;

    several longitudinal supports (15), to some extent having the same, to some extent having different specific parameters;

    several stands (77; 78; 79) which are constructed in accordance with the kit according to one of Claims 10 to 15;

    it being possible for selected longitudinal supports (15) and stands (77; 78; 79) to be releasably connected to the item of furniture via one or more linkage elements (2).
17. A construction set according to Claim 16,
    characterised in that various types of fastening elements (80; 81; 82) are provided, which can be fastened via the or each end insertion fastening (11) of one or more linkage elements (2).
18. A construction set according to Claim 16 or 17,
    characterised in that several conduit channels (18) having a modular construction are provided, each of which engages around one of the longitudinal supports with a rear edge or front edge.

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