Switch

An inhibiter switch is configured such that a width portion of across flat 92 provided in a rotary shaft 9 of a manual shaft that rotates a movable board 5 provided with movable contact points 7 is jointed to the movable board by being press-fitted between joint portions projecting from an inner periphery of an insert hole 55 in the insert hole provided in the movable board, wherein the movable contact points 7 making pressure contact with fixed contact points are moved in the circumferential direction around the rotary shaft of the movable board with rotation of the movable board by the rotary shaft of the manual shaft, thus connecting/disconnecting the movable contact point 7 and the fixed contact point 8 in response to an angular position of the movable board 5 around the rotary shaft 9. A press-fit amount of the width portion of across flat 92 in the manual shaft 9 side to the press-fit portions of the joint portions is made smaller toward a connecting portion to the inner periphery of the insert hole 55.