Ratchet wrench

Details Ratchet wrench Ratchet wrench

B - Operations, Transporting

25

B

81/41

B25B 13/46 (2006.01)

Patent

CA 1235315

ABSTRACT OF DISCLOSURE In a preferred embodiment, a gear drive mechanism includes a non-driving interval in the reverse direction of rotation of the handle of a ratchet wrench. Within that interval handle engagement with a toggle-type switch can occur for reversing ratcheting direction. This handle engagement of the ratcheting mechanism being by way of handle twistable out of alignment with the mounting structure of the handle portion of the wrench. In this arrangement non-circular circumscribing inside wall surfaces of the handle (as viewed in transverse cross-section) engages and wedges a roller against the rounded surface of the drive shaft. Thus, while the roller is wedged, reverse direction turning of the handle causes the drive shaft to turn to thereby flip the toggle-like switch mechanism, thereby reversing the ratcheting direction of the ratchet wrench.

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