Patent ID: 7815257
Filing Date: 2010-10-19
Classification: A47C

Abstract:
1. An adjustment device for a chair having a backrest and a seat, the adjustment device comprising a backrest support for supporting the backrest, wherein the backrest support is capable of rotating around a shaft fastened to a support base, said support for the backrest being provided with a blocking plate provided with a plurality of openings, an insert being movable for engaging and disengaging said openings, characterized in that said insert is provided with means limiting the travel of the insert, wherein the insert is capable of sliding in a defined track in an internal support within the support base, an actuator being provided, wherein the actuator is operated by a rod connected to a handle that can be operated by a user, said actuator being movable between a release position and a lock position, wherein in the lock position, said insert is selectively engaged in one of said openings, said actuator being connected to said insert.