Reversible ratchet drive

Details Reversible ratchet drive Reversible ratchet drive

B - Operations, Transporting

25

B

81/45

B25B 13/46 (2006.01)

Patent

CA 1138231

REVERSIBLE RATCHET DRIVE Abstract of the Disclosure In a ratchet tool having a toothed driving, a complementary coaxial, generally cylindrical rotatable toothed core within the ring, and a core-carried pivotal toothed double-ended pawl secured within the core and selectively positionable to intercouple the driving ring with the core for positively driving a core-carried tool element in each of two opposite torque-transmitting modes, improved means for pivotally shifting the pawl to a selectable mode of torque- transmitting core rotation, the improvement comprising finger actuable pawl-shifting means responsive to finger pressure applied along a vector which includes a force component directed axially into the core to effect, through intercoupling linkage, pivotal radial shifting of the pawl, alternately, between first and second driving-ring-engaging operational positions, and in which the pawl shifting means is conveniently manipulable with the same hand used to hold and to operate the tool. An addi- tional important feature of the invention is that there is pro- vided means whereby the tool user may palpably or visually readily perceive in which rotational mode the tool is set.

367351

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