ARM REST FOR A PIECE OF SEATING FURNITURE

Abstract

An arm rest for a piece of seating furniture, in particular for an office chair, has an arm rest support and an arm support which is movable relative thereto, wherein an elastic return element is provided and the arm support is movable relative to the arm rest support against the restoring force of the return element.

Claims

1. An arm rest for a piece of seating furniture, in particular for an office chair, comprising: an arm rest support, an arm support connected to the arm rest support and which is movable relative thereto, and an elastic return element connected to the arm rest support and to the arm support, wherein the arm support is movable relative to the arm rest support against a restoring force of the return element.

2. The arm rest as claimed in claim 1, wherein the return element is designed as an elastomer, as a spring element, as a leg spring, or as a torsion bar.

3. The arm rest as claimed in claim 1, further comprising a first stop configured for limiting the movement of the arm support relative to the arm rest support in a first direction.

4. The arm rest as claimed in claim 3, further comprising a second stop that is configured for limiting the movement of the arm support relative to the arm rest support in a second direction.

5. The arm rest as claimed in claim 1, wherein the arm support is pivotable about a horizontal axis of rotation relative to the arm rest support.

6. The arm rest as claimed in claim 5, wherein the arm support is connected to the arm rest support so as to be pivotable about a fixed horizontal axis of rotation.

7. The arm rest as claimed in claim 5, wherein a longitudinal axis of the return element is oriented transversely to the horizontal axis of rotation.

8. The arm rest as claimed in claim 1, wherein a pivot range of the arm support relative to the arm rest support is less than 25.

9. The arm rest as claimed in claim 1, wherein the arm support and the arm rest support are connected to each other in respective end areas of the arm support and of the arm rest support.

10. The arm rest as claimed in claim 1, further comprising a cuff made of a resilient material in a transition area between the arm rest support and the arm support.

11. The arm rest as claimed in claim 1, wherein the arm support comprises an arm support fastening part and the arm rest support comprises an arm rest support fastening part, wherein the arm support fasting part and the arm rest support fastening part are pivotally connected to each other, and wherein the return element rests against the arm support fastening part and the arm rest support fastening part.

12. The arm rest as claimed in claim 1, wherein the arm rest is height-adjustable.

13. The arm rest as claimed in claim 12, further comprising an operating element configured for the height adjustment of the arm rest, said operating element being situated in a front area of the arm rest support.

14. The arm rest as claimed in claim 1, wherein the arm support has a top side made of a resilient material.

15. A piece of seating furniture comprising an arm rest according to claim 1.

16. The arm rest according to claim 14, wherein the resilient material is PU.

17. The arm rest as claimed in claim 8, wherein a pivot range of the arm support relative to the arm rest support is between 10 and 20.

18. The arm rest as claimed in claim 2, wherein the return element is designed as a compression spring.

19. The arm rest according to claim 2, wherein the return element is formed of elastomeric rubber.

20. The arm rest according to claim 7, wherein the longitudinal axis of the return element is oriented orthogonal to the horizontal axis of rotation.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Further features and advantages of the invention result from the detailed descriptions of one exemplary embodiment of the invention presented in the following with reference to the figures in the drawing, which shows the details that are essential to the invention. Further features and advantages of the invention also result from the claims. The features described therein are not intended to be interpreted literally, and are presented in such a manner that the special features of the present invention may be presented clearly. The various features can be implemented individually, or these can be combined in any possible manner in different variants of the invention.

[0020] One exemplary embodiment of the invention is represented in the schematic drawing and is described in greater detail in the following description.

[0021] In the drawings:

[0022] FIG. 1 shows a perspective representation of an arm rest according to the invention;

[0023] FIG. 2 shows a side view of the arm rest according to the invention, without a cuff; and

[0024] FIG. 3 shows a sectional representation through the arm rest according to the invention.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] FIG. 1 shows an arm rest 1 comprising an arm rest support 2 and an arm support 3. A horizontal section 4 of the arm rest 1 is utilized for fastening the arm rest 1 to a piece of seating furniture (not shown), in particular an office chair. The horizontal section 4 can be formed from aluminum or plastic, for example. The horizontal section 4 transitions into a vertical section 5 which can be designed to be telescopic. In particular, the arm rest 1 comprises a guide sleeve 6, into which a vertical support part has been inserted. The guide sleeve 6 is displaceable in the longitudinal direction with respect to the vertical support part, and therefore a height-adjustable arm rest 1 results.

[0026] An operating element 7 designed as a button is provided for the height adjustment. The arm support 3 is movable with respect to the arm rest support 2 against a restoring force. It is apparent that the arm support 3 and the arm rest support 2 are connected to each other in an end region in each case. A cuff 8 is provided in the connecting area.

[0027] The arm rest 1 is shown in a side view in FIG. 2. The cuff 8 has been removed, and therefore an arm support fastening part 10 and an arm rest support fastening part 11 are apparent. The arm support fastening part 10 and the arm rest support fastening part 11 are pivotally connected to each other via a bolt 12. The center axis of the bolt 12 represents a horizontal axis of rotation 13 in this case, about which the arm support 3 is pivotable relative to the arm rest support 2. These parts are covered by the cuff 8 during operation, and therefore an operator cannot become injured, in particular pinched. Given that the cuff 8 is made of a resilient material, in particular in the shape of an accordion, its shape follows the movement of the arm support 3 relative to the arm rest support 2. In order to improve the comfort of the arm rest 1, the top side 14 of the arm support 3 is made of a resilient material, in particular PU.

[0028] FIG. 3 shows a sectional representation of the arm rest 1. It is apparent here that a return element 15, which is designed as a compression spring in this case, is connected at one end to the arm support 3, in particular an arm support body 16 which is connected to the arm support fastening part 10 and, at the other end, to the arm rest support fastening part 11. The top side 14 is supported by the arm support body 16. The arm support body 16 is connected to the arm support fastening part 10 via suitable fastening means, for example screws.

[0029] A swinging motion of the arm support 3 about the horizontal axis of rotation 13 is limited by a first stop 17.

[0030] When the arm support 3 is loaded in the area of its free end, the arm support is pivoted in the arrow direction 18, thereby compressing the return element 15, and therefore against the restoring force of the return element 15. This movement is limited by a second stop 19. In the exemplary embodiment shown, the pivot range is approximately 16.

[0031] It is also apparent in the representation in FIG. 3 that the arm rest support fastening part 11 and the guide sleeve 6 are designed as a single piece. A vertical support part 20 is situated in the guide sleeve 6. The guide sleeve 6 and the vertical support part 20 are displaceable relative to each other. A detent system 21 is provided for this purpose, into which a detent projection 22 situated on the lower end of the operating element 7 can engage. The operating element 7 can be pivoted against the restoring force of yet another return element 23 in order to bring the detent projection 22 into engagement in different positions of the detent system 21 and thereby effectuate a height adjustment of the arm rest 1.