DE3321411A1 - CHAIR WITH ROTATING BEARING SEAT BODY - Google Patents

Abstract

1. A chair having a seat (14) which is rotatably mounted on a column (12) and which is provided with a bearing recess for the upper end of the column and has a resilient detent element (26, 26') which is arranged in the bearing recess and is engageable on the column (12), characterised in that the detent element consists of several resilient detent tongues (26, 26') which are arranged on a bearing cup (23, 23') which is inserted into the bearing recess of the seat (14, 33).

Description

Wilhelm Link GmbH & Go. KG

Tubular steel furniture

Neue Strasse 26 7475 Meßstetten 7-Tieringen

Chair with rotatable seat body

The invention relates to a chair with a seat body rotatably mounted on a column »

Chairs with swiveling seat body are, in particular ₅ but not exclusively, as a working chair in use, said resting generally to a stable Fußstern only and height-adjustable foot column generally leaves a user of the chair free scope for his legs and feet.

The invention is based on the object of a chair to be trained at the beginning so that it is cheaper than previous ones without reducing its joint stability Have chairs of this type manufactured.

The object set is achieved according to the invention by that the seat body with a bearing recess on the with The upper end of the column, which has at least one locking projection or recess, is clipped on ο The bearing recess can be formed directly on the seat body, but is expedient according to the invention by a

Formed by the bearing cup inserted, the opening edge of which is limited by resilient locking tongues with the at least a locking projection or a locking recess of the column cooperate.

In a chair designed according to the invention, the Column and the seat body rotatably connected to it by a simple plug-in connection with locking mechanism inextricably linked. This connection is achieved by simply plugging the two parts into one another. the Plug connection can be prefabricated extremely accurately so that the seat body seat influencing actuators, such as with Threaded clamping cones or the like, can be completely omitted. The column can expediently be made from a tube which is indented at its upper end and at which at a distance from the indented end by squeezing The circumferential web is formed as a locking projection. This is according to the invention the bearing cup not only in its cylindrical part, but also by a rounding of its bottom edge the column adapted with its retracted end, and the locking tongues are grooved to receive the peripheral web of the Provided column. The bearing cup can be made of a high-quality, stable plastic material with good sliding properties Pre-manufacture to size so that post-processing of this part can be completely omitted. The edge of the opening of the Bearing cup delimiting resilient locking tongues can be manufactured with such a great rigidity that an absolute secure and not involuntarily releasable locking connection is created. This connection can, but does not have to, secured by a locking ring that prevents the latching tabs from spreading.

P 4385

Two exemplary embodiments are described below according to the invention trained chairs explained in more detail with reference to the accompanying drawing.

Show in detail:

Fig. La + Ib

Side views of two chairs with the seat body rotatably mounted on a column;

Fig. 2

a central vertical section through the rotary joint of seat body and chair column in a first embodiment;

Fig. 3

a view of the rotary joint in the direction of arrow III in Pig. 2;

Fig. 4

a section corresponding to FIG. 2 through a second exemplary embodiment;

Fig. 5

a view of the rotary joint in the direction of arrow V in FIG. 4.

Figs. La and Ib show two chairs 10 and 10 ', both have a central length-adjustable chair column 12 resting on a footrest 11, on the upper end of each a seat body 14 or 15 is rotatably arranged with a bearing shoulder 16. In the chair 10 according to Fig. La is on the seat

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body 14 a backrest 17 via a connecting web 18 attached, so the chair seat 19 and backrest 17 are formed separately. The one in Pig. Ib illustrated chair 10 ' a shell 20 is formed on the seat body 15, which both the seat surface 21 and a backrest surface 22 forms.

Figs. 2 and 3 show the rotary joint of a Plastic molded seat body 14, on which the bearing extension 16 is integrally formed. In the bearing approach 16 is a bearing cup 23 prefabricated from a high-quality plastic material is fixed during the manufacture of the seat body 14 has been poured in, the outer ribs 24 of the bearing cup 23 securely anchoring it in the bearing attachment 16. At the exposed opening edge 25 of the bearing cup 23 are several, Resilient latching tongues 26 distributed uniformly over the circumference of the opening are formed.

The bearing cup 23 is precisely matched to the upper end 13 of the column 12 of the chair 10, 10 'made from a tube, including a rounding 27 on the edge of the bowl bottom 28. This rounding 27 is to the rounding of the inward curved edge 29 of the column 12 adapted. In the end region 13 of the tubular column 12 there is a bead-like locking web 30 formed by pressing out into a matching groove 31 in the locking tongues 26 of the bearing cup 23 fits. To connect the column 12 to the seat body 14, the column 12 is connected to the The bent end 29 of its end section 13 is pushed into the opening of the bearing cup 23 until the locking web 30 is in the Receiving groove 31 of the locking tongues 26 engages. The locking tongues can then be pushed concentrically on the column 12 arranged locking ring 32 in their locking

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position to be secured. Such a locking ring is in Fig. 2 indicated with dot-dash lines. This locking ring can also have an internal thread which it can be screwed onto the peripheral projections (not shown) of the locking tongues 26 »

The embodiment shown in FIGS. 4 and 5 differs from the embodiment according to FIGS. 2 and 3 by a seat support in the form of a metal plate 33 which is provided with a bulge 34 delimiting a circular opening at the location of the bearing recess. A supporting round 35 is inserted into this bulge and is connected to the carrier plate 33 by an annular weld seam 36. The inwardly directed edge 37 of the bulge 34 protrudes into a matching outer groove of a bearing cup 23 ', again made of a high-quality plastic, which is inserted into the bearing recess of the support plate 33 and which also rests on the upwardly curved edge 39 of the supporting blank 35. Otherwise, the bearing cup 23 'is of the same design as the bearing cup 23 according to the embodiment of FIGS. supplemented by an index line, denoted. The tubular column 12 'with its end section 13' is also embodied in the same way as in the exemplary embodiment according to FIGS. 2 and 3.

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Claims (1)

ρ 4385 332H11 Patent claims: Chair with on a column base support body, characterized gekennzelehnet that the seat body (14, 15) with a bearing recess on the at least one latching projection (30j 30 ') provided or a recess upper end of the column (13 _S 13') is clipped. 2 »Chair according to claim 1, characterized in that a bearing cup (23 _S 23 ') is inserted into the seat body (14, 33), the opening edge of which is delimited by resilient locking tongues (26 _S 26'), which with the at least one locking projection (30, 30 ') or a locking recess of the column (12, 12') interact. 3. Chair according to claim 1 or 2, characterized in that the column (12, 12 ') made of a tube is retracted at its upper end (29 * 29') and at a distance from the retracted end (29, 29 ') with a circumferential web (30, 30 ') formed by pressing is provided as a latching projection, and that the bearing cup (23 _S 23') at its bottom edge a rounding (27, 27 ') adapted to the recess of the column end (29, 29') and on its locking tongues (26, 26 ') has grooves (3D for receiving the peripheral web (30, 30') of the column (12, 12 ') «, 4. Chair according to one of claims 1 to 3, characterized in that that the bearing cup (23) is made of a plastic material with good sliding properties and on its Has outside projections (24) and / or recesses for its anchoring in the seat body (14). 5. Chair according to one of claims 1 to 4, characterized by means of one which can be pushed onto the locking tongues (26) of the bearing cup (23) and is arranged concentrically to the column (12) Retaining ring (32). 6. Chair according to claim 5, characterized in that the locking ring (32) with an internal thread and the locking tongues (26) are provided with external projections that fit into the locking ring thread.