Retraction and extension device for a foot and/or leg support of an item of seating and/or lounging furniture

Abstract

A retraction and extension device (100) for a foot and/or leg support of an item of seating and/or lounging furniture, with two substantially parallel arms (102), each arm (102) includes a first fastener (106) for rotatable fastening to a chassis (108) of the item of seating and/or lounging furniture, second fastener (110) for fastening the foot and/or leg support to the respective arm (102), and a plurality of struts arranged in two rows (104), in each of the rows (104) the struts of the respective row (104) are connected in a rotatable manner to each other. Some of the struts in each of the rows (104) are connected in a rotatable manner to at least one strut of the respective other row (104), wherein the first and the second fastener are spaced apart from each other by a distance of less than 50 cm.

Claims

1. A retraction and extension device (100) for a foot and/or leg support of an item of seating and/or lounging furniture, comprising: two substantially parallel legs (102), each leg (102) comprising first fastener (106) for rotatably attaching to a chassis (108) of the item of the seating and/or lounging furniture, second fastener (110) for attaching the foot and/or leg support to the respective leg (102), and each leg (102) further comprising a plurality of struts disposed in two rows (104) including a first row and a second row, wherein in each of the rows (104), the struts of a respective row (104) are rotatably interconnected end to end from the first fastener to the second fastener, and wherein for each leg (102) more than one of the struts in the first row (104) is rotatably connected to a respective strut of the second row (104), wherein the first and the second fastener are spaced apart, when the foot and/or leg support is extended, by a distance of less than 50 cm, wherein for each leg (102), extending from the first fastener to the second fastener, each of the plurality of struts in a respective row are arranged one following another in an alternating manner inward towards the opposing leg (102) and outwards away from the opposing leg (102), wherein the second fastener (110) is at least partially arranged on an angled strut (114), wherein the angled strut (114) is one of the plurality of struts of the leg (102).

2. The retraction and extension device (100) according to claim 1, wherein the first fastener (106) comprise recesses disposed on several struts of the two rows (104).

3. The retraction and extension device (100) according to claim 1, wherein the second fastener (110) comprise recesses on several struts of the two rows (104).

4. The retraction and extension device (100) according to claim 1, wherein each of the legs (102) comprises at least one release strut, wherein the at least one release strut includes at least a portion of the first fastener (106); while the retraction and extension device (100) is in the retracted state, the at least one release strut extends, starting from the first fastener (106), away from the second fastener (110).

5. The retraction and extension device (100) according to claim 1, wherein the retraction and extension device (100) comprises connecter (112) that interconnect the two legs (102) with each other.

6. The retraction and extension device (100) according to claim 4, wherein the at least one release strut comprises fastener for attachment to the connecter (112).

7. The retraction and extension device (100) according to claim 1, wherein the retraction and extension device (100) is configured such that the struts of each of the rows (104) rotate in relation to the struts of the respective other row (104) during an extension and retraction operation.

8. The retraction and extension device (100) according to claim 1, wherein the retraction and extension device (100) is configured such that at least one of the struts of both rows (104) rotate during an extension and retraction operation in relation to the chassis (108) of the seating and/or reclining furniture and in relation to the second fastener (110).

9. The retraction and extension device (100) according to claim 1, wherein the first and the second fastener (110) are spaced apart, when the foot and/or leg support is extended, by a distance of 35 to 45 cm.

10. A system comprising an item of seating and/or lounging furniture with a foot and/or leg support; and a retraction and extension device (100) for the foot and/or leg support according to claim 1.

Description

BRIEF DESCRIPTION OF THE DRAWNGS

(1) Additional features and advantages of the present invention will become apparent from the following description of preferred exemplary embodiments with reference to the accompanying drawings. Identical or similar components and components performing identical or similar functions are provided with identical reference symbols. The drawings show in:

(2) FIG. 1 a schematic perspective view of a retraction and extension device according to an embodiment of the invention in the extended state;

(3) FIG. 2 the retraction and extension device of FIG. 1 in the retracted state;

(4) FIG. 3 schematic side views of a retraction operation of the retraction and extension device;

(5) FIG. 4 schematic plan views of a retraction operation the retraction and extension device; and

(6) FIG. 5 sectional views according to the section lines of FIG. 4.

DETAILED DESCRIPTION OF THE INVENTION

(7) The figures show a retraction and extension device 100 attached to a chassis 108. The retraction and extension device 100 includes two legs 102 which each include a plurality of struts. The struts are arranged in two intersecting rows 104. The struts of both rows 104 of a leg 102 extend partially inside and partially outside. This approach ensures a particularly high stability of the legs 102.

(8) Each of the legs 102 has first fastening means 106 for attachment to the chassis 108. In addition, each of the legs 102 includes second fastening means 110 for attaching to the legs 102 a foot and/or leg support (not shown in the figures). The two legs are interconnected with connecting means 112. The connecting means 112 further increase the stability of the retraction and extension device 100.

(9) In addition, each of the legs 102 has an angled strut 114. This angled strut 114 is connected to the second fastening means 110 and ensures that the second fastening means 110 are pivoted upward in an extension operation. The angle between the second fastening means 110 and the legs 102 therefore changes during the extension operation.

(10) A comparison between the FIGS. 1 and 2 clearly shows that the retraction and extension device 100 requires very little space in the retracted state (FIG. 2) and is positioned completely under the chassis 108, thus preventing a user from being disturbed. This is possible, due to the compact form, also with a relatively small chassis 108. Conversely, in the extended state (FIG. 1), the retraction and extension device 100 attains due to the accordion-like deformation a length of less than 50 cm, for example, about 35 to 45 cm, so an unillustrated foot and/or leg support attached on the second fastening means 110 can be used to rest the feet and/or legs of a user.

(11) FIGS. 3 to 5 illustrate different stages of a retraction operation. The state of the retraction and extension device 100 in FIG. 3A corresponds hereby to that in FIGS. 4A and 5A. The same applies to the other FIGS. 3C to 3E, 4C to 4E and 5C to 5E.

(12) FIGS. 4A to 4Eshow section lines V-V (FIG. 4A) to P-P (FIG. 4E). The corresponding cross-sectional views are reproduced as FIGS. 5A to 5E.

(13) The extension operation of retraction and extension device 100 takes place in principle by a mechanical reversal of retraction operation. The extension operation can thus be understood by the viewing the FIGS. 3 to 5 in the reverse order, i.e. for example from FIG. 3E to FIG. 3A.