Ratchet tool having increased driving torque

Details Ratchet tool having increased driving torque Ratchet tool having increased driving torque

2006-07-18

2006-07-18

Thomas, David B. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Handle clutched to head

C081S063100

Reexamination Certificate

active

07077032

ABSTRACT:
A ratchet tool includes a handle having a number of inner teeth, a cartridge rotatably received in the handle and having a driving shank and having three side surfaces. Three pawls are rotatably attached to the side surfaces of the cartridge and each includes two end portions each having one or more teeth for engaging with the teeth of the handle, in order to control the driving direction of the cartridge relative to the handle. A control member includes three spring-biased projections for engaging with the pawls and for forcing the teeth of either of the end portions of the pawls to engage with the teeth of the handle, and to control the driving direction of the cartridge relative to the handle.

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