Patent ID: 6792830
Filing Date: 2004-09-21
Classification: B25B

Abstract:
A unidirectional ratchet wrench comprising:a head having a drive member for applying torque to a workpiece; a rotatable gear disposed in the head and having gear teeth; a bidirectional pawl disposed in the head in a first operating condition in which the pawl is pivotally engageable with the gear to allow torque-applying rotation of the gear with the head in a first direction; a bias member adjacent the pawl to allow ratcheting rotation of the head relative to the gear in a second direction, wherein the first operating condition also includes the ratcheting rotation; and an obstruction disposed within the head for engagement with the pawl to prevent the pawl from moving from the first operating condition to a second operating condition in which the pawl may allow ratcheting rotation of the head relative to the gear in the first direction.