| 摘要 |
PURPOSE:To provide a displacement transmission device which can favorably transmit displacement to rotating displacement transmission means on a motion member even if the motion member turning around a shaft produces an angle of pivotal turning by keeping the rotating displacement transmission means from being displaced by the pivotal displacement of the motion member. CONSTITUTION:A motion member 3 is rotatably mounted on a shaft 2 disposed at a fixed portion 1. A shaft 4 is fixed to the side of the forward end of the motion member 3. A displacement generator 6 is fixed to a pulley 5 rotatably mounted on the shaft 4. Both ends of a rope 13 are connected to direct-acting actuators 11 and 12, and the rope is wrapped through pulleys 9, 5 round a pulley 10. When the motion member 3 is pivoted counter-clockwise in an angle theta1, the distance from the point A to the point B increases up to L1, and the angle of winding changes from beta0 to beta1, so that changes in the length of a rope 13 between the points A and B1 and between the points B1 and C1 is cancelled, and the length of the rope 13 between the points A, C little changes. |
