| 摘要 |
A ratchet wrench structure able to enhance the positioning effect of a ratchet includes a control member (41). The control member is longitudinally provided with a prop pin (45) which has a rectangular slab shape. The prop pin longitudinally holds against a contact surface (32) of a detent block (30) to increase the area for applying the force. The detent block from top to bottom meshes with a ratchet ring (20), enhancing the positioning effect of the ratchet and stability of engagement. This won't have the problem of a partial engagement, preventing the teeth (21,31) from breaking. The prevent invention can overcome the parallelism and perpendicularity tolerance problem that the conventional ratchet wrench uses a plurality of elastic positioning members (3) to hold against the detent block (1). |
