| 摘要 |
PURPOSE:To make a stroke of reciprocating motion in a motion changing part adjustable, by setting up the motion changing part, changing part, changing rotational motion by a motor into the reciprocating motion, being capable of contacting and shifting in a radial direction of a swash plate part. CONSTITUTION:When a motor is rotated, an angular tip of the output shaft is fitted in a corresponding sqare hole of a connecting joint whereby a shaft part 7 is driven for rotation via the connecting joint 6. when this shaft part 7 is rotated, a push rod 14 being pressed to a swash plate part 8 unitized with this shaft part by dint of spring 26 reciprocates as receiving an action of the spring 26. A stroke of this reciprocating motion depends upon what the push rod 14 comes into contact contact with the swash plate part 8 at which radial position. A ring member 19 is used for adjusting this radial position to the desired value. And, when the push rod 14 reciprocates, a spring bearing piece 22 and a force transfer device unitized with this piece both reciprocate as well. |
