| 摘要 |
<p>A unidirectional ratchet wrench in the field of hand tools includes a wrench body (7), a ratchet (2), a pawl (6) and a magnetic mating block (3). Said magnetic mating block is positioned in one side of the insertion groove (8) opposed to the pawl (6) and rested against the side wall of the insertion groove (8). A spring (4) is set between the magnetic mating block (3) and the pawl (6). One end of said spring (4) is magnetically fixed to the magnetic mating block (3), and the other end is fixed to the pawl (6) by linking. The unidirectional ratchet wrench avoids milling holes in the mating block and the pawl, it is compact in construction andsimply produced and assembled.</p> |
