Patent ID: 8683894
Filing Date: 2014-04-01
Classification: B25B

Abstract:
1. A positioning structure for a ratchet wrench comprising: a ratchet wrench including a driving head, a receiving cavity defined in a front end of the driving head, a first groove formed behind and communicating with the receiving cavity, a second groove formed behind the first groove and in a rear end of the driving head, and a hole arranged in the second groove; the receiving cavity having a driving member fixed therein, and the driving member having a toothed portion formed around an outer peripheral side thereof; the first groove having two opposite retaining blocks disposed therein, and each retaining block has a plurality of locking teeth arranged around a front end thereof so as to engage with the toothed portion of the driving member, the each retaining block also has an orifice defined on a rear edge thereof and a receiving aperture under the orifice, and between two receiving apertures of the two retaining blocks being defined a first resilient element; the second groove having a directional control member mounted therein, the directional control member has a limiting portion, a recessed portion, an actuation portion, and a shaft, wherein a second resilient element is fitted onto the shaft and is inserted into the hole of the second groove, and the actuation portion is inserted into two orifices of the two retaining blocks.