| 摘要 |
A reversible ratchet wrench comprises a handle having a head portion at an end thereof. The head portion has a through hole, a first chamber and a second chamber. An engaging member is received in the through hole of the handle for free rotating. A pawl is received in the first chamber detachably meshed the engaging member. A switching device comprises an axle member and a turning member at an end of the axle member, and a driving device is made from a flexible wire to form a spiral coupling portion and a curved elastic arm projected from an end of the coupling portion. The coupling portion is received in the second chamber and the elastic arm is projected out to rest against the pawl at the driven portion thereof. The axle member of the switching member is inserted into the second chamber via the opening end of the second chamber for driving the elastic arm to turn, and then the pawl is driven to shift by the elastic arm of the driving device.
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