Patent ID: 8950294
Filing Date: 2015-02-10
Classification: B25B

Abstract:
1. A ratchet wrench applicable to multi-size workpieces, comprising: a wrench, a support portion, and a resilient member, wherein the wrench has a handle and a head on which there is a hollow handle hole with two bended neighboring surfaces on its inner edge, a first support surface, and a second support surface, the head having an accommodating space and an arc-edge surface, the accommodating space being beside the hollow handle hole and embedded into the handle, the arc-edge surface being along the hollow handle hole's edge and contiguous to the first support surface, and an end of the arc-edge surface which is far away from the first support surface being adjacent to the accommodating space; wherein the support portion has a ratchet part having two portions on opposite ends, the two portions being an arc-convex portion and art arc-concave portion, the ratchet part dividing the hollow handle hole into a first working space and a second working space which correspond to the arc-convex portion and the arc-concave portion, respectively, and a screw fastening element to be handled being placed in the first working space and contacted by the arc-convex portion of the ratchet part; and wherein the resilient member always exerts resilient resistance on the ratchet part.