Patent attributes
A torsion adjusting structure, which is installed on a shaft and a carrying member pivoted on the shaft, includes a gear, a pair of friction washers, and a linkage assembly. The shaft passes through the gear and the friction washers respectively abutted on two opposite surfaces of the gear. The linkage assembly installed on the carrying member has an engaging portion. The linkage assembly is adjusted between an engaging position and a separating position. When the linkage assembly is at the engaging position, the engaging portion engages with the gear for enabling rotation of the carrying member to rotate the gear to rub the friction washers, thereby providing the carrying member with an additional torsion. When the linkage assembly is at the separating position, the engaging portion separates from the gear for maintaining the relative position between the gear and the friction washers.
