Abstract: A supportive walker includes a front frame, a rear frame, a pair of limitation plates, and at least one safety lock. The limitation plates are adapted to support relative movement of the front frame and the rear frame between an extended position and a folded position. The safety lock is adapted to selectively lock the front frame and the rear frame. The limitation plates are connected to the front frame and each has a passage defined therethrough to accommodate movement of the rear frame. The safety lock includes a mounting unit and a control unit such that the action of a spring force set outwardly pulls the control unit to move an inner protruding block along sliding slots at side wings of the mounting unit, and to further unlock the front frame and the rear frame so as to extend or fold the front frame and the rear frame.

Abstract: A supportive walker includes a front frame, a rear frame, a pair of limitation plates, and at least one safety means. The limitation plates are adapted to support relative movement of the front frame and the rear frame between an extended position and a folded position. The safety means is adapted to selectively lock the front frame and the rear frame. The limitation plates are connected to the front frame and each has a passage defined therethrough to accommodate movement of the rear frame. The safety lock includes a mounting unit and a control unit such that the action of a spring force set outwardly pulls the control unit to move an inner protruding block along sliding slots at side wings of the mounting unit, and to further unlock the front frame and the rear frame so as to extend or fold the front frame and the rear frame.

Abstract: A hand brake control mechanism includes a hollow mounting base for coupling to the apparatus with which the hand brake control mechanism is to be used, an operation handle pivoted to the mounting base, an actuating bar pivoted to the mounting base and driven by the operation handle to pull a brake cable being connected thereto, and a link pivoted to the mounting base and acted with the operation handle, wherein the operation handle is turned relative to the mounting base between at least three different positions, and the link controls the relative action between the operation handle and the actuating bar, enabling the brake cable to be controlled by the operation handle to achieve a temporary braking function or a continuous braking function, or to be released from braking operation when the operation handle is not in the state of the aforesaid temporary braking or continuous braking function.