Lever apparatus having stationary fulcrum, movable force point and movable action point, and machine which incorporates the same

摘要

PCT No. PCT/JP92/01719 Sec. 371 Date Jul. 27, 1994 Sec. 102(e) Date Jul. 27, 1994 PCT Filed Dec. 28, 1992 PCT Pub. No. WO94/15117 PCT Pub. Date Jul. 7, 1994A fulcrum of a lever member which is rotatably supported by a stationary shaft has force and action points provided with a force point regulator and an action point regulator, respectively. Each of the regulators has a roller and a pair of guide plates guiding the roller between the guide plates as the lever member is rotated about the fulcrum supported by the stationary shaft.