Easily adjusted swivel office chair - has detachable clamp connection between backrest rocker support and seat plate

摘要

The detachable connection between the rocker arm of the backrest bar and the seat plate bracket includes a stay (5) to form a triangle between the rocker axle (A), the stay axis (B) and the clamp axis (E). The clamping screw (10) runs in a slit (11) of the stay, with the clamping press action being imparted by sleeves (13, 14) from the cross-bar nut (12) via the stay (5) to the rocket (3, 4). When the friction connection is made between the U-hoop (2) and the screw (10) anchored on it the two sleeves (13, 14), the stay (5), and nut (12) ensure that the backrest is rigid in the triangular joint.