New and improved ratchet tool with rotatable rotor lock and rigi

Details New and improved ratchet tool with rotatable rotor lock and rigi New and improved ratchet tool with rotatable rotor lock and rigi

1988-02-08

1989-09-26

Schmidt, Frederick R.

Tools

Wrench, screwdriver, or driver therefor

Handle clutched to head

81 632, B25B 1346

Patent

active

048691380

ABSTRACT:
An improved ratchet tool having a rotatable handhold, coupled with a shaft telescoped in a tubular handle is made more simple and more securely self-locking by the presence of a rotary lock device for the rotor that drives the tool and a rigid shifter finger offset radially from the shaft axis which projects from the end of the shaft into a recess within the rotary lock to rotate the lock to corresponding direction changing positions upon manual rotation of the handhold, while simultaneously securely locking the rotor against undesirable movement when under loaded torque.

REFERENCES:
patent: 3659484 (1972-05-01), Scodeller
patent: 3724298 (1973-04-01), Howard

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