| 摘要 |
PROBLEM TO BE SOLVED: To secure reliable conduction by bringing a conductive ball into contact with a pair of guide faces.SOLUTION: A switch 1B comprises: a pair of terminals 51 conducted together with pressing of a plunger 21 sliding to a housing 11 in a pressing direction or a returning direction; and a conductive ball 41 housed in the housing 11, rolling to a conduction position for contacting and conducting both of the pair of terminals 51 from a non-conduction position for not contacting the pair of terminals 51 together with pressing of the plunger 21, and rolling from the conduction position to the non-conduction position together with sliding of the plunger 21 in the returning direction. The switch comprises guide faces 55 including conduction and contact portions 55a at which the conductive ball 41 contacts the terminals 51 at a conduction position Pb, and a pair of guide faces 55 are opposed to each other, and arranged at an enlarged interval on the conductive ball 41 side. |
