MECHANISM FOR A CHAIR COMPRISING A SYNCHRONOUS MECHANISM; METHOD FOR WEIGHT ADJUSTMENT FOR AN IMPROVED DYNAMIC FEEL OF SITTING FOR THE USER BY MEANS OF A MECHANISM FOR A CHAIR COMPRISING A SYNCHRONOUS MECHANISM

摘要

The invention is based on a mechanism (1) for a chair with a synchronous mechanism, by which a seat surface structure is moved to a backrest structure in a synchronized relation to each other, wherein by the mechanism (1) a restoring force of the synchronous mechanism by means of a change of an effective angle of an energy accumulator is adjusted to a different body weight of a seat occupant, and the mechanism (1) a seat support (8) for the seat surface structure, a bearing block (5), the power storage unit (2), a backrest support (3) for receiving the backrest structure, and a translational Bearing (16), wherein the mechanism (1) comprises a wishbone (21) and the power storage unit (2) is connected to the wishbone (21) and of a method for weight adjustment for an improved dynamic comfort feeling of the seat user by means of a mechanism (1 ) for a chair with a synchronous mechanism , wherein in a position (A) of the backrest support (3) by means of the adjusting device (11) a first articulation point (31) of the force storage unit (2) is adjusted in position and at the earliest thereafter a pivoting movement to a second position (B) of the backrest support ( 3) is executed.