| 摘要 |
There is provided an inhibiter switch in which a movable board 5 provided with movable contact points 7 is rotatably provided around an axis line X inside a body case 4 formed by coupling a cover 3 to a pole board 2 provided with fixed contact points 8a to 8d on which grease is applied, and the movable contact point 7 making pressure-contact with the fixed contact point 8a to 8d by an urging force of a spring is moved in the circumferential direction around the axis line with rotation of the movable board 5 to connect/disconnect the movable contact point 7 and the fixed contact point 8a to 8d in accordance with the angular position of the movable contact point 7 around the axis line. A contact portion 723 of the movable contact point 7 with the fixed contact point 8a to 8d is provided with a plurality of grooves 74 formed along the movement direction of the movable contact point, and the grooves 74 have sharp tip-shaped projecting portions 741 and sharp tip-shaped concave portions 742 that are formed to line up alternately in a radial direction of the axis line, so that the grease applied on the fixed contact point 8a to 8d flows into the groove 74 at the moving time of the movable contact point 7. |
