Chair with tilting seat and back rest

Details Chair with tilting seat and back rest Chair with tilting seat and back rest

A - Human Necessities

47

C

155/40

A47C 1/03 (2006.01) A47C 1/032 (2006.01)

Patent

CA 1237973

A B S T R A C T The seat and back-rest of a chair are inclinably supported in bearings, for example of a foot- rest and are connected to one another by a joint. The seat has a lengthening section extending against the back of the back-rest while the back is kept at a distance from the joint by means of a lengthening arm. A spring element is attached at its ends to the free ends of the lengthening section and to the back. While changing from the normal position (solid line) to the resting position, a relative motion is superimposed on the seat and the rest-lever during their rotating motion. This relative motion leads to uneven lowering-lengths of the free end of the seat and the back section, upon the changing to the lengthening lever. By means of this relative motion, the normally unavoidable "drawing out effect" with the user of the chair is avoided in course of which, however, additional pipes (as is the case with known designs) are not required.

463620

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