Title:
SAFETY SWITCH
Document Type and Number:
Japanese Patent JP3486819
Kind Code:
B2
Abstract:
PURPOSE: To provide a safety switch provided with a safety protective function for keeping the condition that the operation of an industrial machine is stopped even when the door of a room in a dangerous zone is closed while there are operators, etc., in the room.
CONSTITUTION: A pair of terminals 10 of plug-in receiving structure are arranged on the unit on the side of a switch main body so that the inserting port of each terminal is exposed to the outside, and circuit ends (wirings L3, L4), for each of which the main circuit is out off, are connected to the terminals 10 while a connection tool (inserting plug) 3 is fitted attachably/detachably to the outside of the unit that is in the arrangement position of the pair of terminals 10. A pair of mutually conducted inserting fittings 31 are provided on the connection tool 3 corresponding to the pair of terminals 10, and the main circuit is connected or disconnected by fitting or removing the connection tool 3.
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Inventors:
Atsushi Matsumoto
Masanori Nakayasu
Masanori Nakayasu
Application Number:
JP27977893A
Publication Date:
January 13, 2004
Filing Date:
November 09, 1993
Export Citation:
Assignee:
Izumi Electric Co., Ltd.
TOYOTA JIDOSHA KABUSHIKI KAISHA
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F16P3/10; H01H3/16; (IPC1-7): H01H3/16; F16P3/10
Domestic Patent References:
| JP5217470A | ||||
| JP6044926A | ||||
| JP6299136U | ||||
| JP6276447U |
Attorney, Agent or Firm:
Yoshiro Kurauchi
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