GB912223A - Snap action electric switch - Google Patents

Snap action electric switch

Info

Publication number
GB912223A
GB912223A GB41497/58A GB4149758A GB912223A GB 912223 A GB912223 A GB 912223A GB 41497/58 A GB41497/58 A GB 41497/58A GB 4149758 A GB4149758 A GB 4149758A GB 912223 A GB912223 A GB 912223A
Authority
GB
United Kingdom
Prior art keywords
spring
snap
cam
slider
lever
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
GB41497/58A
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.)
Devlieg Bullard Inc
Original Assignee
National Acme Co
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 National Acme Co filed Critical National Acme Co
Publication of GB912223A publication Critical patent/GB912223A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01H5/06—Energy stored by deformation of elastic members by compression or extension of coil springs
    • 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
    • H01H13/285—Snap-action arrangements depending upon deformation of elastic members using compression or extension of coil springs having a symmetrical configuration
    • 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
    • H01H19/54—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 the operating part having at least five or an unspecified number of operative positions
    • H01H19/60—Angularly-movable actuating part carrying no contacts
    • H01H19/62—Contacts actuated by radial cams
    • 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
    • H01H21/22—Operating parts, e.g. handle
    • H01H21/24—Operating parts, e.g. handle biased to return to normal position upon removal of operating force
    • H01H21/28—Operating parts, e.g. handle biased to return to normal position upon removal of operating force adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift
    • H01H21/285—Operating parts, e.g. handle biased to return to normal position upon removal of operating force adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift having an operating arm actuated by the movement of the body and mounted on an axis converting its rotating movement into a rectilinear switch activating movement
    • 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

  • Push-Button Switches (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

912,223. Retractive switches. NATIONAL ACME CO. Dec. 23, 1958 [March 18, 1958], No. 41497/58. Class 38 (5). In a snap-action limit switch the operating machine member rotates lever 42 and hence coupled clutch members 17, 18 counter-clockwise to bring an operating cam 20 to the position shown. The cam-follower 108 thus moves slider 101 to the left, detent 103 striking a member 93 on a latched member 90 to compress the snap-spring 105. A release stud 109 on slider 101 then reaches the position shown in Fig. 7, where it trips spring-loaded latches 118 to release members 93 and allow the spring 105 to snap the slider 101 to the left. This carries with it the contact-carrier 81 so that spring- loaded contacts 83, 84 leave the right-hand contact pair 78 and engage the left-hand pair 78 with a snap-action. Upon release of the lever 42, cam-spring 36 returns the cam 20 to normal and spring 107 urges the slider 101 to the right. The contacts 83, 84 thus snap back under the control of latches 119. In order that the switch may be operated by a clockwise movement of lever 42 and cam 20, the clutch member 17 may be withdrawn from the member 18 and rotated through 90 degrees.
GB41497/58A 1958-03-18 1958-12-23 Snap action electric switch Expired GB912223A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US722318A US2958747A (en) 1958-03-18 1958-03-18 Snap action switch

Publications (1)

Publication Number Publication Date
GB912223A true GB912223A (en) 1962-12-05

Family

ID=24901349

Family Applications (1)

Application Number Title Priority Date Filing Date
GB41497/58A Expired GB912223A (en) 1958-03-18 1958-12-23 Snap action electric switch

Country Status (4)

Country Link
US (1) US2958747A (en)
DE (1) DE1244273B (en)
FR (1) FR1209446A (en)
GB (1) GB912223A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3053950A (en) * 1959-08-13 1962-09-11 Nat Acme Co Snap-acting switch
US3373257A (en) * 1966-09-02 1968-03-12 Allen Bradley Co Fluid damped electric switch actuator
CN101393810B (en) * 2008-09-19 2011-07-27 阮坚毅 Independent pressing type control switch

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1559329A (en) * 1923-06-29 1925-10-27 Lemlyn Nicolas Electric circuit switch
DE613927C (en) * 1934-01-16 1935-05-28 Aeg Rapid switching device controlled by cam rollers for driving switches or switching mechanisms, especially for electric rail vehicles
FR802631A (en) * 1935-05-27 1936-09-09 Labinal Ets Electric switch
US2531350A (en) * 1947-06-27 1950-11-21 William Diefenthaler Receptacle for a switch
US2783323A (en) * 1955-03-21 1957-02-26 Max L Jeffrey Quick acting switch
US2828394A (en) * 1956-08-24 1958-03-25 Peter P Mayzik Adaptor unit

Also Published As

Publication number Publication date
DE1244273B (en) 1967-07-13
US2958747A (en) 1960-11-01
FR1209446A (en) 1960-03-01

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