Patent ID: 7484803
Filing Date: 2009-02-03
Classification: A47C

Abstract:
1. A chair, in particular a desk or office chair, comprising: a support frame; a pedestal connected to the support frame; a back rest part swingably supported to the support frame for rotation around a stationary first rotation axis defined by the support frame for movement of the back rest part from a normal position into a number of reclined positions; a pivoting lever having one end connected to a lower region of the back rest part for rotation about the first rotation axis; a seat part connected to the back rest part for rotation with the back rest part around a second rotation axis such that the seat part moves longitudinally in synchronism with the back rest part, when the back rest part moves into an one of the reclined positions, and is forced to rotate around a third rotation axis spaced forwardly from the second rotation axis and defined by contact between the seat part and the support frame; and a return device, secured to the support frame and the seat part, for returning at least one member selected from the group consisting of the back rest part and the seat part to their normal positions, wherein the first rotation axis is positioned in the normal and inclined positions of the member above the seat part at a predetermined distance thereto in midsection of the pedestal.