Patent ID: 6138532
Filing Date: 2000-10-31
Classification: B25B,Y10S

Abstract:
A wrench comprising:a handle including a head provided thereon and including an internal gear provided in said head,a cartridge rotatable received in said internal gear, said cartridge including a bore formed therein and including an upper portion,a pawl pivotally secured in said cartridge and including two ends selectively actuated to act onto said internal gear,a knob including a shaft rotatable received in said bore of said cartridge and including a spring-biased projection engaged with said bawl for selectively actuating either of said ends of said bawl to engage with said internal gear, andan indicator device provided on said upper portion of said cartridge for indicating an active direction of said wrench, an engagement of said knob with said indicator device being provided for indicating the active direction of said wrench,wherein said upper portion of said cartridge includes an opening formed therein and having a size greater than that of said bore of said cartridge for forming an annular shoulder between said bore and said opening of said cartridge, said upper portion of said cartridge includes a sector recess formed therein and communicating with said opening of said cartridge for receiving said knob.