Synchronous mechanism for the seat-backrest movement of an office chair comprises a base support placed on a chair column, a seat support and a backrest support

摘要

Synchronous mechanism comprises a base support (1) placed on a chair column, a seat support (3) and a backrest support (4). The backrest support is connected to the base support via a first connecting rod (7) on one side and to the seat support via a second connecting rod (25) on the other side so that pivoting movement of the backrest induces a lifting movement of a rear region. The seat support is connected to the base support so that a front region of the seat support lifts. Preferred Features: The base support is connected to a linear guide which is arranged in the front region of the seat support.