| 摘要 |
PROBLEM TO BE SOLVED: To configure a reasonable switch mechanism with which the operation of an operation member can be distinguished securely and with high precision without enhancing support precision of the operation member against a case. SOLUTION: The switch mechanism is equipped with a substrate 32 with a switch section provided with a plurality of fixed electrodes and a plurality of movable contacts 36 housed in a case 10, an operation ring 16 freely twistable against a case 10 around Z axis and operational both at a pushed-in position and a pulled-out position, and a depressing member 25 which operates unitedly with the operation ring 16. When the operation ring 16 is twisted at a set position, either a pushed-in or pulled-out position, a movable contact 36 gets in touch with a fixed electrode pressed by the depressing member 25 forming electrical conduction status. |
