| 摘要 |
A ratchet wrench (10) is used to engage a first workpiece (14) to advance it about a second workpiece (16). The wrench (10) includes an annular driver member (20) having teeth (30) received in a first region (50) of a cavity (48). A pawl element (22) has shoulders (38, 40) that selectively engage sequential ones of the teeth (30), and nibs (42, 44) extend parallel to the pivotal axis of pawl element (22) which is disposed in a second region (52) of cavity (48). An elongated handle (26) has a bore (58) that communicates with cavity (48), and a drive shaft (28) is rotatably and slidably disposed in bore (58). The drive shaft may be linearly moved between a first position where rotation of the drive shaft (28) pivots the pawl element (22) and a second position where rotation of drive shaft (28) rotates the annular drive member (20).
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