Patent ID: 7648130
Filing Date: 2010-01-19
Classification: B25B,G01R

Abstract:
1. A tabletop operable clamping device, characterised by combining the following features: the device includes two levers, being an upper lever-A and a lower lever-B; upper lever-A carries a jaw-A a first end of upper lever-A; lower lever-B carries a jaw-B at a first end of lower lever-B; upper lever-A carries a magnet-A at a second end of upper lever-A and carries a pivot-boss-A between the first and second ends of upper lever-A; lower lever-B carries a magnet-B at a second end of lower lever-B and carries a pivot-boss-B between the first and second ends of lower lever-B; a lever-pivot connects the pivot-boss-A to the pivot-boss-B, and defines a pivot-axis, about which jaw-A and jaw-B can undergo relative pivoting movement; magnet-A and magnet-B are so mounted on the respective upper and lower levers that like-poles of the magnets lie facing each other to exert a repulsive magnetic force against each other, and thereby urge relative movement apart therebetween; and the upper and lower levers are so arranged that pivoting movement of magnet-A relative to magnet-B is accompanied by pivoting movement of the respective jaw-ends of upper lever-A and lower lever-B, this pivoting movement being effectible while the device lies on a tabletop surface.