Patent Number: 6,310,305

Title: Safety switch

Abstract: A main lock mechanism and an auxiliary lock mechanism are juxtaposed with a switch body. The main lock mechanism including a switchable portion switchable between Lock position and Unlock position, an operation piece removably mounted to the switchable portion for switching the switchable portion, and a lock body which, when an actuator is inserted, disables or enables the rotation of a drive cam depending upon whether the switchable portion is at Lock position or Unlock position. The auxiliary lock mechanism including a drive portion actuated at transfer of the switchable portion to Lock position, an auxiliary contact alternating between a closed position and an open position depending upon whether the drive portion is non-operative or operative, and an operative portion which maintains the switchable portion at Lock position when the drive portion is non-operative and permits transfer of the switchable portion to Unlock position when the drive portion is operative.

Inventors: Kamino; Yasushi (Osaka, JP), Fukui; Takao (Osaka, JP)

Assignee: Idec Izumi Corporation

International Classification: H01H 27/00 (20060101); H01H 27/06 (20060101); H01H 009/28 ()

Expiration Date: 10/30/2018