Mechanism for an office chair

Abstract

A mechanism for an office chair includes an adjusting device and an electromotive drive used to actuate the adjusting device to simplify manipulation of the adjusting device for changing a movement characteristic of the office chair.

1 . A mechanism for an office chair, the mechanism comprising:
 an adjusting device configured to change a movement characteristic of the mechanism; and   an electromotive drive configured to actuate said adjusting device.   
     
     
         2 . The mechanism according to  claim 1 , which further comprises a backrest support, said adjusting device configured to change a pivoting resistance of said backrest support. 
     
     
         3 . The mechanism according to  claim 1 , which further comprises an actuating element configured to actuate said adjusting device, said actuating element indirectly or directly connected to said electromotive drive and configured to be driven by said electromotive drive. 
     
     
         4 . The mechanism according to  claim 3 , wherein said actuating element is a spindle. 
     
     
         5 . The mechanism according to  claim 3 , which further comprises:
 a backrest support;   said adjusting device including a spring configuration having at least one spring element;   said spring configuration operatively connected to said backrest support and configured to determine a pivoting resistance of said backrest support in the event of pivoting from a starting position into a pivoted position; and   said actuating element configured to change at least one of a tension of said at least one spring element or a spring rate of said spring configuration.   
     
     
         6 . The mechanism according to  claim 1 , which further comprises:
 at least one measuring device configured to detect at least one user-dependent measured value and to provide a measurement result; and   an evaluation and control unit configured to evaluate said measurement result and to control said electromotive drive in dependence on said measurement result.   
     
     
         7 . The mechanism according to  claim 6 , wherein said at least one measuring device and said evaluation and control unit are configured to continuously measure, evaluate and control. 
     
     
         8 . The mechanism according to  claim 6 , wherein said at least one measuring device includes a device for measuring a weight of a user sitting on the office chair. 
     
     
         9 . The mechanism according to  claim 6 , wherein said at least one measuring device includes a device for detecting at least one of a weight distribution or a position of a user on a seat of the office chair.