Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
July 28, 2009
Patent Application Number
11861415
Date Filed
September 26, 2007
Patent Primary Examiner
Patent abstract
A seat, in particular an office chair, has a synchronous mechanism with a weight-adapting mechanism. An automatic adaptation of a spring force acting on the synchronous mechanism depends on the weight momentarily exerted on the seat. Therefore, the spring force is transmitted to the synchronous mechanism via a lever whereof the active arm length of the lever can be modified to adjust the spring force. The weight-adapting mechanism is configured such that the active arm length is automatically adapted to the weight momentarily exerted on the seat.
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