GB1200160A - Improvements in snap action switches - Google Patents

Improvements in snap action switches

Info

Publication number
GB1200160A
GB1200160A GB2295/70A GB229570A GB1200160A GB 1200160 A GB1200160 A GB 1200160A GB 2295/70 A GB2295/70 A GB 2295/70A GB 229570 A GB229570 A GB 229570A GB 1200160 A GB1200160 A GB 1200160A
Authority
GB
United Kingdom
Prior art keywords
contact
blade
wedging
snap
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
GB2295/70A
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.)
LYNDON WALKUP BURCH
Original Assignee
LYNDON WALKUP BURCH
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 LYNDON WALKUP BURCH filed Critical LYNDON WALKUP BURCH
Publication of GB1200160A publication Critical patent/GB1200160A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
    • H01H23/02—Details
    • H01H23/12—Movable parts; Contacts mounted thereon
    • H01H23/16—Driving mechanisms
    • H01H23/20—Driving mechanisms having snap action
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/26—Snap-action arrangements depending upon deformation of elastic members
    • H01H13/28—Snap-action arrangements depending upon deformation of elastic members using compression or extension of coil springs
    • H01H13/34—Snap-action arrangements depending upon deformation of elastic members using compression or extension of coil springs having two or more snap-action motions in succession
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/26—Snap-action arrangements depending upon deformation of elastic members
    • H01H13/36—Snap-action arrangements depending upon deformation of elastic members using flexing of blade springs
    • H01H13/38—Single blade moved across dead-centre position
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H15/00—Switches having rectilinearly-movable operating part or parts adapted for actuation in opposite directions, e.g. slide switch
    • H01H15/02—Details
    • H01H15/06—Movable parts; Contacts mounted thereon
    • H01H15/10—Operating parts
    • H01H15/102—Operating parts comprising cam devices
    • 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
    • H01H5/18—Energy stored by deformation of elastic members by flexing of blade springs

Landscapes

  • Mechanisms For Operating Contacts (AREA)
  • Push-Button Switches (AREA)

Abstract

1,200,160. Snap-action switches. L. W. BURCH, and H. K. BURCH. 25 July, 1967 [25 July, 1966], No. 2295/70. Divided out of 1,199,957. Heading H1N. On movement of switch actuating member 90 to the left, a wedging member 115 carried thereby slides along a fixed contact member 106 passing between the fixed contact member 106 and the movable contact 102 of a snap-action spring blade 96 and forcing the blade spring 96 over centre to open the contacts. The blade spring 96 is an M-shaped blade like the one disclosed in copending application 34068/67. In its other stable position a contact 104 carried by blade 96 engages a fixed contact 108. These contacts are separated in a similar manner to the first set by a wedging member 124 carried by actuator 90 on return movement of the actuator. Overtravel in either direction causes one or other wedging member 122, 124 to jam the respective contact set 104, 108 or 102, 106 together with increased contact pressure. The wedging members may carry contact bridges on their leading edges to provide a more rapid opening for D.C. operation. In Fig. 5, the wedging members 142, 150 are resilient spring blades which co-operate with respective fixed cam surfaces 144, 152 on overtravel. These cam surfaces deflect the blades 142, 150 after the snap-action blade has passed overcentre to increase the contact pressure of the closed contacts.
GB2295/70A 1966-07-25 1967-07-25 Improvements in snap action switches Expired GB1200160A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US56763366A 1966-07-25 1966-07-25

Publications (1)

Publication Number Publication Date
GB1200160A true GB1200160A (en) 1970-07-29

Family

ID=24267991

Family Applications (2)

Application Number Title Priority Date Filing Date
GB2295/70A Expired GB1200160A (en) 1966-07-25 1967-07-25 Improvements in snap action switches
GB34068/68A Expired GB1199957A (en) 1966-07-25 1967-07-25 Improvements in Snap Action Switches

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB34068/68A Expired GB1199957A (en) 1966-07-25 1967-07-25 Improvements in Snap Action Switches

Country Status (3)

Country Link
US (1) US3436501A (en)
DE (1) DE1615773A1 (en)
GB (2) GB1200160A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51130075U (en) * 1975-04-10 1976-10-20

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2191926A (en) * 1938-05-26 1940-02-27 Norbert Boisvert Burglar alarm
US2753413A (en) * 1953-09-28 1956-07-03 Airtron Inc Quick break electric switches
US3239629A (en) * 1963-10-15 1966-03-08 Lesser Norton Contact operator
US3324261A (en) * 1965-08-06 1967-06-06 Mallory & Co Inc P R Snap switch means

Also Published As

Publication number Publication date
DE1615773A1 (en) 1970-06-25
GB1199957A (en) 1970-07-22
US3436501A (en) 1969-04-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees