Patent ID: 6572191
Filing Date: 2003-06-03
Classification: A47C

Abstract:
A chair, in particular an office chair, comprising:a pedestal (1); a seat support (4) supported thereon by a chair column (3) and having a front and a rear seat support element (12, 13) which are interconnected by a pivot axis (20); a seat (5) supported on the front and rear seat support elements (12, 13); a backrest (7) fixed to the rear seat support element (13); an adjustable-length energy storing device (27), which is articulated to the front and rear seat support elements (12, 13) at a distance from the pivot axis (20) thereof, serving for adjustment relative to each other of the backrest (7) and the seat (5); a receptacle (47), which is provided on said front seat support element (12) and lodges the upper end of the chair column (3), with the receptacle (47) being articulated to the front seat support element (12) by way of an articulated axis (49) that is parallel to the pivot axis (20) of the front and rear seat support elements (12, 13); and a detent arrangement, which acts between the front seat support element (12) and the receptacle (47), arresting and releasing various inclinations relative to the chair column (3) of the seat support (4) which is equipped with the receptacle (47); wherein the detent arrangement is a rack detent arrangement (49a) which comprises: two racks (50, 51) which are joined to the receptacle (47); two rack jaws (58, 59) which are joined to the front seat support element (12), cooperating with the two racks (50, 51); said two racks (50, 51) and said two rack jaws (58, 59) to be intermeshed in pairs; wherein the two rack jaws (58, 59) are displaceably disposed on a clamping bolt (62).