Patent ID: 8006583
Filing Date: 2011-08-30
Classification: E05B,Y10T

Abstract:
1. A forcing device for a moving lever, comprising: a base member comprising a fixed support; the moving lever that reciprocally moves between a first position and a second position, said moving lever comprising a moving support, said moving lever being pivotally secured on the base member with a pivot; and a coil spring comprising a coil and a pair of arms that extends from the coil and crosses each other, one of the fixed support and the moving support being wound with said coil, the other of the fixed support and the moving support being held between said pair of arms and forced outward, a coil spring force that acts to the moving lever which reciprocally moves between the first position and the second position by the coil spring reversing at an intermediate position of a moving range of the moving lever, said pair of arms being crossed at a crossed point, the crossed point and the moving support crossing a border line that connects the fixed support to a center of the pivot of the moving lever with turning of the moving lever around the pivot, said crossed point and the moving support being in one side with respect to the border line when the moving lever is in the first position and in the other side with respect to the border line when the moving lever is in the second position.