Ratchet drive tool with manual and non-manual power actuation

Details Ratchet drive tool with manual and non-manual power actuation Ratchet drive tool with manual and non-manual power actuation

1992-12-03

1993-10-12

Yost, Frank T.

Tool driving or impacting

Convertible

173217, 811777, 81 5726, B25B 2100

Patent

active

052517063

ABSTRACT:
A ratchet nut runner is energized either manually or by a non-manual power source such as a battery, on-line electrical power or a pneumatic supply. A tubular body or housing, which contains speed-reducing and power-amplifying structures, serves also as the handle or hand grip for the device. A driven drive shaft which extends coaxially from the housing is connected to a head of the device through a pivot joint assembly. An important feature of the drive device is that the housing-enclosed drive shaft is pivotable from a non-manual power drive mode in which the drive shaft is coaxial with a tool-engaging stud or coupler, to a configuration in which the drive shaft extends normally of the coupler for rotation of the drive head manually. A switch which connects non-manual power to the drive shaft operates to cut off power when the device is disposed in a manual mode of operation.

REFERENCES:
patent: 3733935 (1973-05-01), Tsuji
patent: 3733936 (1973-05-01), Flynn
patent: 4170909 (1979-10-01), Wagner
patent: 4912349 (1990-03-01), Chang
patent: 4993288 (1991-02-01), Anderson

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