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1. (WO2013162083) PAD FOR A VISE

Pub. No.:    WO/2013/162083    International Application No.:    PCT/KR2012/003108
Publication Date: Fri Nov 01 00:59:59 CET 2013 International Filing Date: Tue Apr 24 01:59:59 CEST 2012
IPC: B25B 1/24
B25B 1/10
Applicants: JANG, Man-sung
Inventors: JANG, Man-sung
The present invention provides a pad for a vise capable of quickly and stably fixing a work and improving working precision by minimizing the work-grabbing error, wherein an outer member contacting an anvil or a spindle pairs up with an inner member contacting a side of the work with cam grooves formed in the opposed surfaces of the outer and the inner member, and the outer member is loosely fastened to the inner member by a bolt with a wedge rod inserted into the cam groove so that the inner member is moveable towards the outer member by the gap between the cam grooves and wedge rod. The outer member disposed in front of and contacting the anvil or a set of spindles pairs up with the inner member contacting a side of the work with a plurality of transverse cam grooves shaped like inequality sign "<" or ">" in the opposed surfaces of the inner and the outer member. The angle of each of the cam grooves is made to have 110~120°, so that the number of tangent points of the wedge rod to the inner member becomes two, and thus the total four tangent points of both sides fix the work so as to eliminate the mobility of the wedge rod in the cam grooves, thereby quickly and properly stabilizing the fixing of the work and processing the work at high precision.