UST100904I4 - Plunger type electromagnetic relay - Google Patents

Plunger type electromagnetic relay Download PDF

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Publication number
UST100904I4
UST100904I4 US06/069,077 US6907779A UST100904I4 US T100904 I4 UST100904 I4 US T100904I4 US 6907779 A US6907779 A US 6907779A US T100904 I4 UST100904 I4 US T100904I4
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US
United States
Prior art keywords
contact spring
contact
projection
operating rod
bottom portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
US06/069,077
Inventor
Siyoutaro Kawamura
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of UST100904I4 publication Critical patent/UST100904I4/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/02—Non-polarised relays
    • H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
    • H01H51/06—Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity

Abstract

A plunger type electromagnetic relay includes a contact spring provided with a moving contact at one end thereof and having the other end rotatably fitted to a terminal, and the contact spring is further provided with a projection on the central portion thereof. When an electromagnetic coil is not energized, the projection on the contact spring is urged downward by the bottom portion of an operating rod attached to the lower portion of a movable core, thus establishing a normally-open condition. When the electromagnetic coil is energized, the movable core is moved upward and consequently the bottom portion of the operating rod and the projection of the contact spring are also moved upward in their engaged condition. When this occurs, an electric connection is completed between the moving contact at one end of the contact spring and a fixed contact provided in a relay housing. The contact structure comprising the bottom portion of the operating rod and the projection of the contact spring reduces the assembly errors due to the automatic assemblage of electromagnetic relays of the same type.
US06/069,077 1978-09-29 1979-08-23 Plunger type electromagnetic relay Pending UST100904I4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP53-134485 1978-09-29
JP1978134485U JPS581953Y2 (en) 1978-09-29 1978-09-29 Plunger type electromagnetic relay

Publications (1)

Publication Number Publication Date
UST100904I4 true UST100904I4 (en) 1981-08-04

Family

ID=15129423

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/069,077 Pending UST100904I4 (en) 1978-09-29 1979-08-23 Plunger type electromagnetic relay

Country Status (2)

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US (1) UST100904I4 (en)
JP (1) JPS581953Y2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120146750A1 (en) * 2009-08-20 2012-06-14 Fuji Electric Fa Components & Systems Co., Ltd. Electromagnetic contact device
US20150002247A1 (en) * 2013-07-01 2015-01-01 Lsis Co., Ltd. Electro-magnetic contactor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6118556U (en) * 1984-07-06 1986-02-03 株式会社本田ロツク electromagnetic switch

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4916739U (en) * 1972-05-16 1974-02-13

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120146750A1 (en) * 2009-08-20 2012-06-14 Fuji Electric Fa Components & Systems Co., Ltd. Electromagnetic contact device
US8558649B2 (en) * 2009-08-20 2013-10-15 Fuji Electric Fa Components & Systems, Co., Ltd. Electromagnetic contact device
US20150002247A1 (en) * 2013-07-01 2015-01-01 Lsis Co., Ltd. Electro-magnetic contactor

Also Published As

Publication number Publication date
JPS5550538U (en) 1980-04-02
JPS581953Y2 (en) 1983-01-13

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