Title:
THERMAL OVERLOAD RELAY
Document Type and Number:
WIPO Patent Application WO/2014/080558
Kind Code:
A1
Abstract:
Provided is a thermal overload relay capable of preventing a reset bar from being depressed by an external cause other than a reset operation. A thermal overload relay in which the following are disposed inside a casing (2): a main bimetal which is displaced upon sensing an overload; a release lever driven by the displacement of a shifter linked to the main bimetal; a contact-point inverting mechanism which performs an inverting operation by turning the release lever, and switches a contact point; and an operation part for operating the release lever and the contact-point inverting mechanism, the operation part being provided with a reset bar (43) projecting to the outside from inside the casing and for causing the contact-point inverting mechanism to return to an initial state by a push action. A push restricting protrusion (7) for restricting a push action on the reset bar due to an external cause other than a reset action is disposed in the vicinity of the reset bar.
Inventors:
FURUHATA YUKINARI (JP)
KAMOSAKI TAKEO (JP)
FUJITA KEN (JP)
KAMOSAKI TAKEO (JP)
FUJITA KEN (JP)
Application Number:
PCT/JP2013/005821
Publication Date:
May 30, 2014
Filing Date:
September 30, 2013
Export Citation:
Assignee:
FUJI ELEC FA COMPONENTS & SYS (JP)
International Classes:
H01H61/01
Foreign References:
| JPH05274987A | 1993-10-22 | |||
| JP2003500817A | 2003-01-07 | |||
| JP2012146400A | 2012-08-02 | |||
| JP2010232057A | 2010-10-14 | |||
| JP2010009762A | 2010-01-14 | |||
| JP2010232055A | 2010-10-14 | |||
| JPH0239441U | 1990-03-16 |
Attorney, Agent or Firm:
HIROSE, Hajime et al. (JP)
Hirose 1 (JP)
Hirose 1 (JP)
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