Screw-rotating tool

Details Screw-rotating tool Screw-rotating tool

1999-01-11

2000-04-11

Smith, James G.

Tools

Wrench, screwdriver, or driver therefor

Machine

81 5713, 81 58, B25B 1700

Patent

active

060476168

ABSTRACT:
Merely a handle-rotating operation allows a screw part such as a bolt or a nut to be tightened or loosened without rotating the screw part when the handle is rotated in a reverse direction. A screw-rotating tool comprising a main section having a first reverse rotation prevention mechanism provided on a periphery of a main rotary body having a socket part which is formed on one end thereof and engaging a screw part; and an auxiliary section including an auxiliary rotary body having a second reverse rotation prevention mechanism formed on a periphery thereof and engaging the main rotary body and a handle which operates the second reverse rotation prevention mechanism. The construction allows the screw part engaging the socket part to be rotated in one direction by operating the handle.

REFERENCES:
patent: 4474089 (1984-10-01), Scott
patent: 4532832 (1985-08-01), Christensen
patent: 4762031 (1988-08-01), Bradley

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