Patent ID: 7150504
Filing Date: 2006-12-19
Classification: A47C

Abstract:
1. An handrail adjustment mechanism comprising a handrail body, a lower plate, a removable block, a disc, a locating ring as well as corresponding elastic member, a locating pin as well as corresponding elastic member, and a base; wherein the handrail body is fastened on top of the lower plate; the lower plate is a plastic concave housing, fastened under the handrail body so as to form a space between the handrail body and the lower plate for accommodation of the removable block, the disc, the locating ring, the elastic member, the locating pin and the elastic member; a linear locating slot having a plurality of identical curved slots is disposed on inner left and right sides of the lower plat; the removable block with a transverse groove is arranged between the two linear locating slots; two locating rings with an elastic member therebetween are disposed symmetrically on right and left sides of the transverse groove; the elastic member elastically presses the locating rings against the curved slot of the linear locating slot; a round slot is arranged on the removable block for being assembled with the disc while two sets of locating slots are arranged on edge of the circumference of the disc; a race with the locating pin and the elastic member is disposed on front edge and rear edge of the round slot; the elastic member elastically presses the locating pin against the locating slot of the disc; a fastening member inserting through the center of the disc, the removable block and the transverse sliding slot of the lower plate, and a central hole of the base for integrated into a part; and the base having a lock hole on two sides respectively thereof fastened with the disc by the central hole; thereby the handrail body, the lower plate and the removable block all rotates synchronously with the disc and are located at an angle while the handrail body and the lower plate both moves in longitudinal direction, synchronous and relative to the removable block and are located in a position; thus the assembly of the handrail body and the lower plate rotates at an angle and moves in longitudinal direction, relative to the disc.