Frame structure for a table

Abstract

The invention relates to a frame for supporting a top of a table or desk at a working height, said frame being designed for fastening legs. The frame comprises at least two profiled bodies that can be connected to each other via at least two brackets (10, 12), said brackets (10, 12) being designed to extend over or around edges of the profiled bodies.

Claims

1. A table frame for supporting a table top of a table in a working height, which is designed for fastening table legs and is formed as a modularly connectable plug system, wherein the table frame comprises at least two profiled bodies having edges extending in a longitudinal direction, the profiled bodies being connectable to one another via at least two brackets, wherein the brackets are connectable to the profiled bodies in an assembled position in a stiffness-promoting manner, by the brackets overlapping the profiled bodies at least in sections, with the brackets extending over or around the edges of the profiled bodies, wherein each profiled body is configured to receive a table leg, and wherein a stiffness promoting clamp is formed between the profiled body and the table leg, and wherein the clamp comprises a projection, which is formed on one of the profiled body and the table leg, and wherein the projection engages a guide link of at least one of the profiled body and the table leg in the assembled position.

2. A table frame according to claim 1, wherein the brackets are designed to be hooked into the profiled bodies.

3. A table frame according to claim 2, wherein the brackets are about twice as long as the profiled bodies.

4. A table frame according to claim 1, wherein the profiled bodies are designed in a trough-shaped or channel-shaped manner.

5. A table frame according to claim 1, wherein said frame comprises transverse profiles for realizing a transverse stiffness.

6. A table frame according to claim 5, wherein the transverse profiles are designed as head pieces.

7. A table frame according to claim 6, wherein each of the head pieces is connectable to a profiled body and a table leg.

8. A table frame according to claim 1, wherein a first component comprises a first one of the profiled bodies and the brackets, and wherein a second component comprises a second one of the profiled bodies and the brackets, and wherein a connecter at least partly clamps the first component and the second component against one another in the assembled position.

9. A table frame according to claim 1, wherein the profiled bodies are connected to one another with a distance therebetween via the brackets.

10. A table frame according to claim 9, wherein the brackets are not load-bearing.

11. A table frame for supporting a table top of a table in a working height, which is designed for fastening table legs and is formed as a modularly connectable plug system, wherein the table frame comprises at least two profiled bodies connectable to one another via at least two brackets, wherein the brackets are formed to extend over or around edges of the profiled bodies, wherein at least one guide link is mounted on one of the table leg and the profiled bodies, and wherein a stiffness promoting clamp is provided and is located between a profiled body and a table leg, and the clamp comprises a projection on one of the profiled body and the table leg, wherein the projection is configured to mate with the guide link on one of the profiled body and the table leg in an assembled position, wherein the guide link comprises a substantially L-shaped geometry with an insertion leg extending vertically in the assembled position and a clamping leg extending transversely thereto, which also tapers conically towards an end in a direction of insertion in order to clamp the projection therein in the assembled position.

Description

(1) The drawings show as follows:

(2) FIG. 1 shows a partial perspective view of a table frame according to the invention, mounted under a table top; and

(3) FIG. 2 shows a perspective exploded view of the table frame according to FIG. 1.

(4) The Cartesian coordinate system shown in FIG. 1 indicates the directions where the X axis indicates the longitudinal axis, the Y axis the transverse direction and the Z axis the height of the table or the system. FIG. 1 shows a table frame according to the invention.

(5) The frame rack according to the invention, which can be assembled in a modular manner and is shown in the drawings, is essentially composed of two profiled bodies configured as trough-type profiles 20, 40, two height-adjustable lifting columns 60, 80, two brackets 10, 13 and two head pieces 14, 15. All components described above are designed as folded steel profiles with a wall thickness of 2.5 mm.

(6) The details on the construction of the components are described in each case only for one component in order to avoid overloading the figures and because the component is constructed in pairs in a corresponding manner.

(7) Each trough-type profile 20, 40 is formed in the manner of a channel, comprising a lower horizontal leg 21 which preferably extends parallel downwards in an offset manner to the supporting plane defined by the table frame for the table top 16, and from which two vertical legs 22, 23 extend in each case at right angles and parallel to one another, which at the upper free ends extend at a right angle to the vertical legs into outwardly projecting mounting flanges 24, which serve for mounting on the table top 16 and increase the longitudinal stiffness.

(8) To further increase the longitudinal rigidity, the brackets 10, 13 are placed on both sides on the outer sides of the vertical legs 22, 23; 42 of the trough-type profiles 20, 40 arranged in alignment in the mounting position, so that these brackets 10, 13 engage with hook ends on the hook sections 11 in positioning openings 26 in the trough-type profiles 20, 40, which in this case are provided to extend in equal distances in the longitudinal direction on both sides in the horizontal leg 21 of the trough-type profile 20, 40 in order to enable different mounting situations or sizes. The brackets 10, 13 sit close in the mounting position to the vertical legs 22, 23 of the profiled bodies 2, 4 by engaging over them on the outside and engage, with a first hook section 11, over the edge between the vertical legs 22, 23 and the horizontal legs 21 of the trough-type body 20, 40 at its one end and, with a second positioning flange 12, the edge between the vertical legs 22, 23 and the mounting flanges 24, 25 of the trough-type profiles 20, 40. The wood or fastening screws can now be screwed through the positioning flange 12 of the brackets 10, 13 and the mounting flanges 24, 25 of the profiled bodies 20, 40 into the underside of the table top 16.

(9) A possible distance between the two trough-type profiles 20, 40 which are fastened coaxially to the top ends of the table can be bridged via a correspondingly adapted intermediate element (not shown), which is geometrically adapted to the trough-type profiles, but does not have to assume a load-bearing function. In an alternative embodiment, the profiled bodies or trough-type profiles 20, 40 abut each other in the mounting position or are formed so that they can receive each other or be pushed into one another.

(10) Each lifting column 60, 80 consists in this case of three rectangular profiles, which can be pushed into each other telescopically and the first and largest of which is connected to the table leg at the lower end, in which a second center profile with an outer dimension in accordance with the inner dimension of the first profile is accommodated in a relatively movable manner, in which in turn a third profile is arranged relatively movably, the outer dimension of which is in turn adapted to the internal dimension of the second profile. At the upper end of the third profile, a box-like motor housing 6a, 8a for accommodating an electric motor is fastened transversely to the lifting column 60, 80. The built-in electric motor drives via a worm gearing a claw clutch which twists a spindle which extends in the lifting column for the longitudinal adjustment of the lifting column and thus for the height adjustment of the table.

(11) Two Allen screws are provided in each case on both sides on the outside of the box-shaped motor housing, i.e. a total of four screws.

(12) The Allen screws on the outer longitudinal sides of the box-like motor housing 61, 81 are now clamped in the L-shaped guide links 27, 28 in the vertical legs 22, 23 of the profiled bodies 20, 40 on the inside. Each of these guide links 27, 28 consists of a recess in the vertical leg 22, 23, which comprises a closed end, i.e. a blind recess. In the present embodiment, each guide link 27, 28 substantially has an L-shaped geometry with a vertical section and a horizontal section extending transversely thereto. During assembly, the trough-type profiles 20, 40 are connected to the vertical legs 22, 23; 42 in an aligned manner relative to the Allen screws on the motor housing 61, 81 and then displaced relative to the stationary motor housings 61, 81 to the face end until the Allen screws are clamped into the conically tapered ends of the horizontal sections of the guide links 27, 28. This clamping seat is then screwed to the outer side of the motor housing 61, 61 by screwing the transversely extending head pieces 14, 15, and the Allen screws projecting from the motor housing are end-braced into the conically tapered horizontal sections of the guide links 27, 28.

(13) If this table frame is to be used for another table with different dimensions, the individual elements can be removed from the underside of the table top 16 and used for the other table. For tables of different depth, only head pieces 14, 15 of different sizes are required as variants. The remaining components, however, are standardized.

(14) In an advantageous embodiment, the trough-type profiles 20, 40 are placed one behind the other in a packaging unit, wherein the brackets 10, 13 and the head pieces 14, 15 are inserted into the trough-type profiles 20, 40. The sum total of the length of both trough-type profiles 20, 40 corresponds to the overall length of the brackets 10, 13. Advantageously, the dimension of 1.20 m of the entire overall length of the packaging unit is not exceeded, which enables particularly efficient stacking and transporting of the packaging units. In a preferred embodiment, the brackets 10, 13 have an overall length of 1.00 m and each trough-type profile has an overall length of 0.50 m. Table frames for table tops 20 can thus be produced in a range from 1.20 m to 2.50 m.

(15) Another embodiment, which is not shown in detail, provides an integral trough-type profile 20, 40. Here, guide links 27, 28 can be introduced into a central region of the trough-type profile 20, 40 if a table frame with only one lifting column is to be produced. A different alternative is provided by an integral trough-type profile 20, 40 with guide links 27, 28 in the respective end areas according to FIGS. 1 and 2, when a two-column table frame is to be produced with a predetermined size.

(16) The subject matter of the present invention is derived not only from the subject matter of the individual patent claims, but also from the combination of the individual patent claims. All details and features disclosed in the documents, including the abstract, in particular the spatial configuration shown in the drawings, are claimed as being essential according to the invention insofar as they are novel, individually or in combination, in comparison with the prior art.

LIST OF REFERENCE NUMERALS

(17) 20 Trough-type profile 21 Horizontal leg 22 Vertical leg 23 Vertical leg 24 Mounting flange 25 Mounting flange 26 Positioning opening 27 Guide link 28 Guide link 40 Trough-type profile 41 Horizontal leg 42 Vertical leg 60 Lifting column 61 Motor housing 80 Lifting column 81 Motor housing 10 Bracket 11 Hook section 12 Positioning flange 13 Bracket 14 Head piece 15 Head piece 16 Table top