Title:
SAFETY SWITCH
Document Type and Number:
Japanese Patent JP2019125418
Kind Code:
A
Abstract:
To avoid a state where contacts in a safety switch do not match each other.SOLUTION: A safety switch 1 is configured such that a contact is switched by the collaboration between an actuator 3 and a switch body 2. The switch body 2 comprises: an operation cam 21 and a lock cam 22 which can be rotated by the insertion of the actuator 3; an operation rod 26 which switches the contact in accordance with the rotation of the operation cam 21; and a lock lever 29 which is capable of moving closer to or away from the lock cam 22 so that it can be located at a locking position IV for locking the rotation of the lock cam 22 and an unlocking position I for unlocking the locked state of the lock cam 22. A portion of a cam contact surface of the lock lever 29, which comes into contact with the lock cam 22 when the actuator 3 moves in an extraction direction at an intermediate position between the locking position IV and the unlocking position I, has a protrusion 29f protruding to the lock cam 22 side.SELECTED DRAWING: Figure 15A
Inventors:
WATANABE TAKEHIRO
YAMANO MASATAKE
YAMANO MASATAKE
Application Number:
JP2018002996A
Publication Date:
July 25, 2019
Filing Date:
January 11, 2018
Export Citation:
Assignee:
IDEC CORP
International Classes:
H01H27/00
Attorney, Agent or Firm:
Kenichi Takasaki