To provide a safety switch with lock in which non-matching of contact signals does not occur between a plurality of contacts even if an unlocking means is operated at the time of an actuator tension.
The safety switch with lock is provided with an actuator in free advancing and retreating to an operating part, a drive cam which rotates according to advancing and retreating of the actuator, a lock means which locks the actuator by restricting rotation of the drive cam when the actuator advances in the operating part, a plurality of lock contact parts which detect locking state and unlocking state of the actuator, and an unlocking means to release locking state of the actuator, and the lock means releases locking state by operation of the unlocking means and switches over the contact state of the lock contact parts. A contact signal matching means is provide which prevents non-matching of the contact signals between the plurality of lock contact parts even if the unlocking means is operated at the time of actuator tension.
| JP2001135202 | MOUNTING MECHANISM OF PRINTED CIRCUIT BOARD |
| JPS60105033 | [Title of the device] Keyboard switch |
ISHIZAKI MASAHIRO
NOBUHIRO MASAKI
| JP2003045294A | 2003-02-14 | |||
| JPH10334772A | 1998-12-18 |
Masanori Tamura