Title:
SAFETY SWITCH
Document Type and Number:
WIPO Patent Application WO/2019/138833
Kind Code:
A1
Abstract:
This safety switch prevents occurrence of a contact discrepancy state. A safety switch 1, in which a contact is switched by cooperation between an actuator 3 and a switch body 2, is realized. The switch body 2 is provided with an operation cam 21 and a lock cam 22 that are rotatable by insertion of the actuator 3, an operation rod 26 that performs switching of the contact in response to rotation of the operation cam 21, and a lock lever 29 that is capable of coming together and separating from the lock cam 22 so as to be able to take a lock position IV for locking the rotation of the lock cam 22 and an unlocking position I for releasing the locked state of the lock cam 22. A cam contact surface, of the lock lever 29, which makes contact with the lock cam 22A when the actuator 3 is moved in the drawing-out direction at an intermediate position between the lock position IV and the unlocking position I, has a projection part 29f that partially projects to the lock cam 22 side.
Inventors:
WATANABE TATSUHIRO (JP)
YAMANO MASATAKE (JP)
YAMANO MASATAKE (JP)
Application Number:
PCT/JP2018/046993
Publication Date:
July 18, 2019
Filing Date:
December 20, 2018
Export Citation:
Assignee:
IDEC CORP (JP)
International Classes:
H01H27/00
Domestic Patent References:
| WO2006117965A1 | 2006-11-09 | |||
| WO2007066803A1 | 2007-06-14 |
Foreign References:
| JPH07127795A | 1995-05-16 | |||
| JPH09502298A | 1997-03-04 | |||
| JPH07122152A | 1995-05-12 | |||
| JP2012221955A | 2012-11-12 | |||
| JPH09502298A | 1997-03-04 | |||
| JPH10334772A | 1998-12-18 |
Other References:
See also references of EP 3605575A4
Attorney, Agent or Firm:
TAKASAKI Kenichi (JP)
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