GB722658A - Improvements in or relating to electric snap-action switches - Google Patents

Improvements in or relating to electric snap-action switches

Info

Publication number
GB722658A
GB722658A GB1265/53A GB126553A GB722658A GB 722658 A GB722658 A GB 722658A GB 1265/53 A GB1265/53 A GB 1265/53A GB 126553 A GB126553 A GB 126553A GB 722658 A GB722658 A GB 722658A
Authority
GB
United Kingdom
Prior art keywords
blade
compression spring
point
contact
stop
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
GB1265/53A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB722658A publication Critical patent/GB722658A/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
    • H01H5/18—Energy stored by deformation of elastic members by flexing of blade springs

Landscapes

  • Tumbler Switches (AREA)
  • Knives (AREA)
  • Stringed Musical Instruments (AREA)

Abstract

722,658. Snap-action switches; press-button retractive switches. CLAUSEN, M. [trading as DANFOSS]. Jan. 15, 1953 [Jan. 15, 1952], No. 1265/53. Class 38 (5) A switch comprises a blade spring 2 fixed at one end to a terminal block la and carrying contacts 10, 11 at its free end. A compression spring 14 pivotally connected between tabs 12, 13 of the blade 2 urges them out of the plane of the blade and, in the switch position shown in Fig. 1, urges the tab 12 against a stop 3 and the contact 10 against a fixed contact 5. On depression of the operator the pivot point c is moved to the opposite side of the blade 2 and the contact pressure is only slightly reduced, and when both end pivot points of the spring 14 pass a line through the point of contact engagement and the end point of the stop 3, the blade 2 snaps over so that contacts 6, 11 engage and tab 12 abuts the stop 4. Removal of pressure on the operator 15 permits the blade to restore itself. In modifications, Figs. 5-8 (not shown), one or both of the tabs 12, 13 are replaced by levers pivotally connected at one end to an end of an aperture in the blade, and at the other end to the compression spring 14. According to a further modification, Fig. 9 (not shown), one of the levers is pivoted at one end to a fixed point on the switch frame and at the other end to the compression spring. In another modification, Fig. 10 (not shown), the compression spring comprises a helical wire coil.
GB1265/53A 1952-01-15 1953-01-15 Improvements in or relating to electric snap-action switches Expired GB722658A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK722658X 1952-01-15

Publications (1)

Publication Number Publication Date
GB722658A true GB722658A (en) 1955-01-26

Family

ID=8152478

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1265/53A Expired GB722658A (en) 1952-01-15 1953-01-15 Improvements in or relating to electric snap-action switches

Country Status (2)

Country Link
DE (1) DE1069254B (en)
GB (1) GB722658A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1916956A1 (en) * 1969-04-02 1970-10-15 Bosch Hausgeraete Gmbh Electrical snap switch
EP0017572A1 (en) * 1979-04-06 1980-10-15 Societe Electromecanique Du Nivernais - Selni Electrical switch operating as a function of the temperature
DE3239079A1 (en) * 1982-10-22 1984-04-26 Danfoss A/S, Nordborg SNAP SWITCH
GB2226452A (en) * 1988-12-23 1990-06-27 American Telephone & Telegraph Cantilever spring switch having multiple fulcrums
WO2006090797A1 (en) * 2005-02-23 2006-08-31 Yamatake Corporation Snap action mechanism and pressure switch employing it

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1183572B (en) * 1960-05-25 1964-12-17 Licentia Gmbh Slow, especially thermally operated double snap-action switch
DE3249368T (en) * 1982-02-09 1984-01-12 Naučno-issledovatel'skij i proektno-konstruktorskij institut vzryvozaščiščennogo rudničnogo electrooborudovanija, Doneck Microswitch

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2318734A (en) * 1939-12-07 1943-05-11 Honeywell Regulator Co Snap action switch
US2330506A (en) * 1941-10-13 1943-09-28 Allen Bradley Co Snap switch construction
US2418068A (en) * 1943-10-28 1947-03-25 Richard T Cornelius Switch
GB596456A (en) * 1945-05-25 1948-01-05 First Ind Corp Improvements relating to snap-action operating mechanism suitable for the actuation of electric switches
CH251997A (en) * 1944-11-07 1947-11-30 Spiess Paul Momentary switch with push button contacts for electrical apparatus.
US2521015A (en) * 1946-12-27 1950-09-05 W L Maxson Corp Snap over toggle switch mechanism
US2556216A (en) * 1948-01-17 1951-06-12 Ranco Inc Snap switch mechanism
US2556981A (en) * 1948-08-03 1951-06-12 Ranco Inc Snap acting control switch

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1916956A1 (en) * 1969-04-02 1970-10-15 Bosch Hausgeraete Gmbh Electrical snap switch
EP0017572A1 (en) * 1979-04-06 1980-10-15 Societe Electromecanique Du Nivernais - Selni Electrical switch operating as a function of the temperature
FR2468989A1 (en) * 1979-04-06 1981-05-08 Thomson Brandt ELECTRICAL SWITCH OPERATING ACCORDING TO TEMPERATURE
DE3239079A1 (en) * 1982-10-22 1984-04-26 Danfoss A/S, Nordborg SNAP SWITCH
GB2226452A (en) * 1988-12-23 1990-06-27 American Telephone & Telegraph Cantilever spring switch having multiple fulcrums
GB2226452B (en) * 1988-12-23 1992-07-29 American Telephone & Telegraph Electrical switch.
WO2006090797A1 (en) * 2005-02-23 2006-08-31 Yamatake Corporation Snap action mechanism and pressure switch employing it
WO2006090447A1 (en) * 2005-02-23 2006-08-31 Yamatake Corporation Snap action mechanism and pressure switch using the same
US7453049B2 (en) 2005-02-23 2008-11-18 Yamatake Corporation Snap action mechanism and pressure switch using snap action mechanism
CN101116160B (en) * 2005-02-23 2010-05-19 株式会社山武 Snap action mechanism and pressure switch employing it

Also Published As

Publication number Publication date
DE1069254B (en) 1959-11-19

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