Back rest for a chair

Details Back rest for a chair Back rest for a chair

A - Human Necessities

47

C

A47C 7/40 (2006.01)

Patent

CA 2606360

For a back rest for a chair with a back support (10) and a back surface (30) secured to this and able to swivel about a two-axis joint (20), wherein the joint (20) has a joint plate (21) connected to the back surface, an element made of an elastic material that supports the joint in a ground position, and a chamber 24 to accommodate the elastic element, connected to the back support (10), the invention specifies that the joint plate (21) is arranged in the receiving chamber (24) between two elements (22, 23) made from an elastic material, holding the joint in a ground position and each being supported against the receiving chamber (24), and it can swivel about the two swivel axes. When the joint (20) is placed under load, the two elastic elements (22,23) are only subjected to compression. There are no tension-loaded connections, as in the prior art, which break under loading and can result in the joint falling apart.

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