GB614451A - Improvements in snap action mechanism applicable inter alia, to electric switches - Google Patents

Improvements in snap action mechanism applicable inter alia, to electric switches

Info

Publication number
GB614451A
GB614451A GB14995/46A GB1499546A GB614451A GB 614451 A GB614451 A GB 614451A GB 14995/46 A GB14995/46 A GB 14995/46A GB 1499546 A GB1499546 A GB 1499546A GB 614451 A GB614451 A GB 614451A
Authority
GB
United Kingdom
Prior art keywords
cam
snap
piece
springs
spring
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
GB14995/46A
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.)
Safran Electrical and Power SAS
Original Assignee
Labinal SA
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 Labinal SA filed Critical Labinal SA
Publication of GB614451A publication Critical patent/GB614451A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/02—Details
    • H01H19/10—Movable parts; Contacts mounted thereon
    • H01H19/11—Movable parts; Contacts mounted thereon with indexing means

Landscapes

  • Push-Button Switches (AREA)

Abstract

614,451. Snap-action switches. ETABLISSEMENTS LABINAL. May 17, 1946, No. 14995. Convention date, May 7, 1945. [Class 38 (v)] A snap-action mechanism for a switch comprises a cam-piece 1 carrying contacts 7 and having working positions corresponding to notches 1<1> which are engaged by rollers 2 biassed by springs R; spring means r transmitting driving force to the cam-piece 1. A push-rod 12, Fig. 2, moves through a distance a<12> to compress the spring r and then through a distance a<1>, positively forcing the rollers 2 out of the notches so that the spring r may snap the cam-piece to the next working position engaging brush contacts 6. As applied to a rotary switch, Fig. 3, a rectangular part 13 of the operating shaft is engaged on both sides by leaf springs r which are secured to a frame 15 rigid with the cam 1. Rotation of the operating shaft through an angle a<12> stresses the springs r, but the cam is not rotated thereby until it has been positively rotated through an angle a<1> by the part 13 bearing on an internal face a. The invention overcomes disadvantages of symmetrical lobe cams wherein snap-action only takes place when the cam 1 is half-way between working positions.
GB14995/46A 1945-05-07 1946-05-17 Improvements in snap action mechanism applicable inter alia, to electric switches Expired GB614451A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR973235X 1945-05-07

Publications (1)

Publication Number Publication Date
GB614451A true GB614451A (en) 1948-12-15

Family

ID=9516592

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14995/46A Expired GB614451A (en) 1945-05-07 1946-05-17 Improvements in snap action mechanism applicable inter alia, to electric switches

Country Status (5)

Country Link
CH (1) CH253811A (en)
DE (1) DE973235C (en)
FR (2) FR996634A (en)
GB (1) GB614451A (en)
NL (1) NL71318C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3518419A1 (en) * 1984-05-22 1985-11-28 Mitsubishi Denki K.K., Tokio/Tokyo ACTUATING DEVICE FOR A SWITCH

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2579169A (en) * 1950-07-20 1951-12-18 Us Instr Corp Indexing mechanism
DE3602246C1 (en) * 1986-01-25 1987-04-09 Kostal Leopold Gmbh & Co Kg Electrical switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3518419A1 (en) * 1984-05-22 1985-11-28 Mitsubishi Denki K.K., Tokio/Tokyo ACTUATING DEVICE FOR A SWITCH

Also Published As

Publication number Publication date
DE973235C (en) 1959-12-31
CH253811A (en) 1948-03-31
FR996634A (en) 1951-12-24
NL71318C (en)
FR57301E (en) 1953-01-02

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