Patent ID: 7946200
Filing Date: 2011-05-24
Classification: B25B,Y10T

Abstract:
1. An adjustable clamping tool comprising a rotatable disc, a spiral passage being disposed on a surface of the rotatable disc, and the spiral passage surrounding a center of the rotatable disc in a radius increasing manner; two clamp portions, each having an inner wall, an outer wall and two side walls connecting the inner and outer walls, the inner walls of the clamp portions facing each other; from a top to a bottom of each clamp portion being integrally disposed a control section, a middle section and a clamp section in sequence; each clamp section having a clamp surface on its inner wall; each control section having a guide bore, which laterally penetrates between the inner and outer walls, and at least a guide boss disposed on a top surface of the control section; the guide bosses being slidably received in the spiral passage; two longitudinal slidable shanks disposed on the clamp portions respectively, one end of each slidable shank being perpendicularly fixed on the inner wall of one of the control sections; the slidable shank and the guide bore, which are disposed on the same control section, being disposed at the same height of the control section and they are the same distance away from a central line of the control section; each slidable shank on a clamp portion being slidably received in the guide bore of the other clamp portion; and a housing member, having a receiving bore to cover the rotatable disc and the slidable shanks, on a periphery of the housing member being disposed two position holes for distal ends of the slidable shanks to insert therethrough respectively; wherein, when the rotatable disc is turned, the clamp portions are driven to move toward or away from each other along an stretching orientation of the guide bores.