Patent ID: 6814154
Filing Date: 2004-11-09
Classification: B25B,B25F

Abstract:
A power tool comprising:a seat, a housing rotatably secured to said seat, and including an internal gear formed and provided therein, said housing including a bore formed therein, and including a notch formed therein and communicating with said bore thereof, and including a plurality of first juts provided thereon, a motor attached to said seat, and including a spindle having a pinion secured thereto and engaged with said internal gear of said housing, for driving said housing to rotate relative to said seat, a shaft rotatably received in said bore of said housing, and including two cavities formed therein and spaced from each other, a pawl rotatably secured in said notch of said housing, and including two ends caused to selectively engage with said cavities of said shaft when said housing is rotated relative to said seat by said motor and rotated greater than a predetermined speed, and means for biasing said ends of said pawl from said cavities of said shaft when said housing is rotated relative to said seat by said motor in a speed less than the predetermined speed, said biasing means including a spring member secured to said housing for engaging with said pawl and for disengaging said ends of said pawl from said cavities of said shaft, said spring member including a first end selectively secured to either of said first juts.