Patent ID: 6330842
Filing Date: 2001-12-18
Classification: B25B

Abstract:
A power driven ratchet tool, including:a wrench head housing and a tubular housing extending therefrom;a drive shaft extending through said tubular housing to said wrench head housing;a drive socket secured in said wrench head housing in freely rotating fashion, said drive socket including a central opening therein adapted to releasably engage a standard threaded component;a plurality of gear teeth spaced about a peripheral surface of said drive socket;a drive pawl disposed in said wrench head housing, said drive pawl including at least one drive tooth adapted to releasably engage said gear teeth of said drive socket;reciprocating means coupled between said drive shaft and said drive pawl for translating said drive pawl reciprocally and urging said at least one drive tooth to engage said gear teeth and rotate said drive socket unidirectionally;means for constraining said drive pawl to translate reciprocally in an arc that is concentric to said drive socket, said means for constraining including a pair of arcuate channels defined in two spaced apart surfaces within said wrench head housing, said drive pawl extending between said two surfaces;said reciprocating means including a crank pin extending eccentrically from said drive shaft in said wrench head housing, said reciprocating means including a drive pawl pin extending between said two spaced apart surfaces within said wrench head housing, said drive pawl pin including an elongated opening extending therein to receive said crank pin.