Safety switch

A safety switch provided with an actuator capable of freely entering/withdrawing from an operation section of a switch main unit, in which a switch section side switching contact becomes an open condition/a closed condition as result of an operating rod provided in a switch section reciprocating in response to the entry/withdrawal of said actuator, so that the entry/withdrawal of said actuator is detected, the safety switch comprising:

• a drive cam provided in said operation section and capable of freely rotating;
• and
• a lock mechanism provided in a lock mechanism section of said switch main unit that locks rotation of said drive cam, wherein
• said drive cam rotates forward and backward in response to the entry/withdrawal of said actuator with respect to said operation section, and said operating rod reciprocates due to the forward and backward rotation, and
• said lock mechanism comprises:
• a lock member provided capable of freely moving between a lock position and an unlock position, that moves to said lock position when said actuator is in the entry condition so as to lock the rotation of said drive cam, and moves to said unlock position so as to release the locked state of the rotation of said drive cam;
• a drive section that moves said lock member;
• at least one lock mechanism side switching contact;
• and
• a link member that switches an open-close condition of said lock mechanism side switching contact in a manner coupled with the motion of said lock member.