| 摘要 |
PROBLEM TO BE SOLVED: To provide a probe pin that offers stable electrical continuity between a movable member, comprising an electrically conductive plate-like body, and a densely wound portion of a coil spring.SOLUTION: A probe pin comprises a movable member, an auxiliary movable member, and a coil spring having a coarsely wound portion compressibly wound near one end thereof and a densely wound portion adjacent to the coarsely wound portion. The movable member comprises a plate-like member having two arms that are elastically deformable in a direction to narrow a slit with the other end opened therebetween, is formed to have a greater length between outer side faces of the two arms near the end portions thereof than an inner diameter of the coil spring when the arms are not elastically deformed, has a locking part formed on the one side for locking an end of the spring coil on the side of the coarsely wound portion, and is inserted to the inner diameter side of the coil spring from the coarsely wound portion side in the state where the arms are elastically deformed in the direction to narrow the slit until the locking part of the movable member locks the end of the coil spring on the coarsely wound portion side. The auxiliary movable member locks an end of the spring coil on a side opposite the end to which the movable member is inserted. |
