| 摘要 |
<P>PROBLEM TO BE SOLVED: To hold a pulley body in an excessive length releasing position without providing a fixing means. <P>SOLUTION: A pulley shaft 34 is movably inserted into a slot 45. The pulley body 31 is accommodated in a pulley case 32 to be movable between an excessive length generating position and the excessive length releasing position. With a lever shaft 38 as an axis, a lever member 33 is movable to an engaging position where the pulley shaft 34 is engaged in the excessive length releasing position and a releasing position where an engagement of the pulley shaft 34 is released. In the engaging position, a tensile force by an opening side cable 21 is applied to the lever member 33. An axis CP of the pulley shaft 34 is shifted to one side in a rotating direction relative to a straight line M extending in parallel with a line of action L and passing an axis CL of the lever shaft 38. Thus, to the lever member 33, a moment is applied for rotating the lever member 33 to the one side in the rotating direction toward the engaging position by a tensile force of the opening side cable 21. <P>COPYRIGHT: (C)2012,JPO&INPIT |
