GB1097429A - A snap action mechanism especially for electrical switching devices - Google Patents

A snap action mechanism especially for electrical switching devices

Info

Publication number
GB1097429A
GB1097429A GB1510365A GB1510365A GB1097429A GB 1097429 A GB1097429 A GB 1097429A GB 1510365 A GB1510365 A GB 1510365A GB 1510365 A GB1510365 A GB 1510365A GB 1097429 A GB1097429 A GB 1097429A
Authority
GB
United Kingdom
Prior art keywords
plate
link
slot
stop
dead centre
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.)
Expired
Application number
GB1510365A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SVENSKA ELFAB SELFA AB
Original Assignee
SVENSKA ELFAB SELFA AB
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 by SVENSKA ELFAB SELFA AB filed Critical SVENSKA ELFAB SELFA AB
Publication of GB1097429A publication Critical patent/GB1097429A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/02—Details
    • H01H21/18—Movable parts; Contacts mounted thereon
    • H01H21/36—Driving mechanisms
    • H01H21/40—Driving mechanisms having snap action
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
    • H01H5/04—Energy stored by deformation of elastic members

Landscapes

  • Interface Circuits In Exchanges (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Mechanisms For Operating Contacts (AREA)

Abstract

1,097,429. Snap action mechanisms. SVENSKA ELFABRIKS A.B. SELFA. April 9, 1965 [April 24, 1964], No. 15103/65. Heading H2B. [Also in Division F2]. A snap acting actuating mechanism comprises a rotatable shaft 1 carrying a plate 2; a rectilinearly movable member 17 for actuating the contacts of a switch &c. (Figs. 4-7, not shown); a means for transmitting motion between the plate 2 and member 17 and consisting of a linkage 21, 23 and an overcentre spring 4 whose ends are anchored respectively on the plate 2 and one link 21; and a pair of locking links 14, 19 actuated by the plate 2 and co-operating with fixed stops 18, 25 to lock the member 17 in each end position respectively. As plate 2 is rotated to bring point 3 towards the dead centre position a pin 24 slides in a slot 6 in the plate; just before dead centre the end of slot 6 lifts the link 19 away from stop 25 freeing the member 17. Further rotation causes the end of a second slot 5 to drive the other link 14 towards its stop 18; this positively moves the member 17 upwards and through link 23 rotates link 21 thus preventing the mechanism stopping in the dead centre position. As the spring passes over centre links 21, 23 are driven rapidly upwards to bring member 17 to its other end position. The spring also drives the plate 2 clockwise so that slot 5 drives the link 14 overcentre against stop 18 to lock the member 17.
GB1510365A 1964-04-24 1965-04-09 A snap action mechanism especially for electrical switching devices Expired GB1097429A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE510264 1964-04-24

Publications (1)

Publication Number Publication Date
GB1097429A true GB1097429A (en) 1968-01-03

Family

ID=20265711

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1510365A Expired GB1097429A (en) 1964-04-24 1965-04-09 A snap action mechanism especially for electrical switching devices

Country Status (7)

Country Link
BE (1) BE662849A (en)
CH (1) CH441477A (en)
DE (1) DE1540404A1 (en)
DK (1) DK113452B (en)
GB (1) GB1097429A (en)
NL (1) NL6505030A (en)
NO (1) NO117248B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0066181A2 (en) * 1981-05-29 1982-12-08 Asea Ab Switch-operating device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1916956C3 (en) * 1969-04-02 1983-12-08 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Electrical snap switch
FR2628261B1 (en) * 1988-03-02 1991-04-19 Legrand Sa CIRCUIT BREAKER WITH DEAD POINT MECHANISM
FR2998413B1 (en) * 2012-11-21 2016-02-05 Alstom Technology Ltd SPRING CONTROL DEVICE FOR A CIRCUIT BREAKER

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0066181A2 (en) * 1981-05-29 1982-12-08 Asea Ab Switch-operating device
EP0066181A3 (en) * 1981-05-29 1985-04-03 Asea Ab Switch-operating device

Also Published As

Publication number Publication date
DK113452B (en) 1969-03-24
CH441477A (en) 1967-08-15
NL6505030A (en) 1965-10-25
DE1540404A1 (en) 1970-01-02
BE662849A (en) 1965-08-17
NO117248B (en) 1969-07-21

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