To provide a simple wire slip-off preventive structure without increasing the number of component items of an actuator for controlling controlled members through a wire.
In a semi-circle sheave 7, engagement holes 22a, 22b capable of assembling an engaging member 21 of one end of a wire 6 in a pierced state and both side wall parts 24a, 24b forming a circumferential groove 23 are provided respectively, a slot 25 making an adjacent part of the engaging member 21 of the wire 6 passable is provided in one side wall 24a, and a locking protrusion 26 is provided near the slot 25 of the side wall 24a. A gentle slope is provided on the part facing the fringe of the slot 25 on the locking protrusion 26 and a perpendicular wall shaped locking surface is provided on a part corresponding to the back side of the gentle slope. Even if the wire 6 becomes loose, the part near the engaging member 21 side of the wire 6 never slips off through the slot 25 by collision of the wire 6 against a locking surface 26b, whereby a wire slip-off preventive structure can be materialized by a simple structure and without increasing the number of component items.
MARUYAMA TAKESHI
MATSUMURA TOMOO
