Patent attributes
An adjustment mechanism for handrails is disclosed. A lower plate is secured below a handrail body so that an inner space for accommodating the adjustment mechanism is formed between the handrail body and the lower plate. Two linear locating slots are symmetrically disposed on inner left and right sides of the lower plate and a removable block is arranged between the two linear locating slots. An elastic locating ring is disposed on right and left sides of the removable block and the locating ring locks into a curved slot of the linear locating slots for being located. Thus the lower plate slides forwards and backwards relative to the removable block, and also being located by the locating ring. Furthermore, a round slot is arranged on the removable block for being assembled with a disc. The center of the disc, the removable block, a sliding slot of the lower plate, and a base are fastened together. The base is secured on the handrail support. Two sets of locating slots are arranged on edge of the circumference of the disc while an elastic locating pin is disposed on front edge and rear edge of the round slot so that the locating pin elastically locks into the locating slot of the disc for being located. And the removable block rotates at an angle, relative to the disc and being located by the locating pin. Therefore, the rotation angle and longitudinal positions of the handrails can be adjusted.