Patent ID: 8833190
Filing Date: 2014-09-16
Classification: G06F,H04M,Y10T

Abstract:
1. A relative-rotation synchronous movement-aid device comprising a linking arm and a rotational wheel assembled with the linking arm, the linking arm having a pivoted end and a free end mounted on the rotational wheel, the free end serving to make the rotational wheel relatively rotate along with the movement of the linking arm; wherein the rotational wheel has a shaft disposed at a circular center of the rotational wheel, the rotational wheel further having a pillar eccentrically formed on the rotational wheel, the linking arm being formed with a slot corresponding to the pillar for detaining the pillar or the shaft therein, whereby the pillar or the shaft is relatively freely movable within the slot; wherein the slot is formed on the linking arm between the pivoted end and the free end, the slot having a first end and a second end; and wherein the shaft and the pillar of the rotational wheel are positioned in the slot near the first end.