GB686730A - Improvements in snap-action mechanisms - Google Patents

Improvements in snap-action mechanisms

Info

Publication number
GB686730A
GB686730A GB3531/51A GB353151A GB686730A GB 686730 A GB686730 A GB 686730A GB 3531/51 A GB3531/51 A GB 3531/51A GB 353151 A GB353151 A GB 353151A GB 686730 A GB686730 A GB 686730A
Authority
GB
United Kingdom
Prior art keywords
increase
snap
tension member
flexibility
action
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
GB3531/51A
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.)
Honeywell Inc
Original Assignee
Honeywell Inc
Minneapolis Honeywell Regulator 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 Honeywell Inc, Minneapolis Honeywell Regulator Co filed Critical Honeywell Inc
Publication of GB686730A publication Critical patent/GB686730A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01H13/40—Blade spring with at least one snap-acting leg and at least one separate contact-carrying or contact-actuating leg
    • H01H13/42—Blade spring with at least one snap-acting leg and at least one separate contact-carrying or contact-actuating leg having three legs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H35/00—Gearings or mechanisms with other special functional features
    • F16H35/14—Mechanisms with only two stable positions, e.g. acting at definite angular positions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18888—Reciprocating to or from oscillating
    • Y10T74/18896—Snap action
    • Y10T74/18904—Plate spring

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Measurement Of Force In General (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Springs (AREA)

Abstract

686,730. Snap action retractive switches. MINNEAPOLIS-HONEYWELL REGULATOR CO. Feb. 13, 1951 [April 17, 1950], No. 3531/51. Class 38 (v) [Also in Group XXXII] In a snap-action mechanism having a resilient elongated tension member mounted in cantilver fashion and held in tension by a compression member, the tension member has its cross-sectional area reduced over a region close to its mounting so as to increase its flexibility. In the arrangement shown, a unitary blade spring has outer bowed compression members 16 pivotally supported in grooves at the ends of legs 23 of a U-shaped fixed plate 24, and a central elongated tension member 17 with its fixed end secured in a recess 42 in the plate 24 by a screw (not shown). A hole 55 is provided in the member 17 to reduce its cross-sectional area and so increase its flexibility. This increase in flexibility is stated to increase the working life of the mechanism. As applied to a snap-action switch, Fig. 1 (not shown), the spring blade is provided with a contact 41 which cooperates with fixed contacts (not shown) and a push button is arranged to engage the tension member 17 at a point between the mounting and the axis of the pivotal supports of the compression members 16.
GB3531/51A 1950-04-17 1951-02-13 Improvements in snap-action mechanisms Expired GB686730A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US156439A US2701475A (en) 1950-04-17 1950-04-17 Snap acting device

Publications (1)

Publication Number Publication Date
GB686730A true GB686730A (en) 1953-01-28

Family

ID=22559580

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3531/51A Expired GB686730A (en) 1950-04-17 1951-02-13 Improvements in snap-action mechanisms

Country Status (3)

Country Link
US (1) US2701475A (en)
FR (1) FR1031842A (en)
GB (1) GB686730A (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3056866A (en) * 1959-11-16 1962-10-02 Honeywell Regulator Co Switch apparatus
US3033953A (en) * 1960-06-13 1962-05-08 Gen Controls Co Miniature snap switch
US3018345A (en) * 1960-12-15 1962-01-23 Honeywell Regulator Co Switch apparatus
US3153125A (en) * 1961-04-06 1964-10-13 Ideal Corp Snap-action switches having booily shifting of the line of tension of the strand portion
US3444950A (en) * 1966-08-03 1969-05-20 Eaton Yale & Towne Vehicle speed governor
GB2002589A (en) * 1977-08-11 1979-02-21 Int Standard Electric Corp Snap-action switch
US4278855A (en) * 1979-03-13 1981-07-14 Ranco Incorporated Snap action switch
US4431884A (en) * 1982-08-09 1984-02-14 Gulf & Western Manufacturing Company Snap action switch
EP0225277B1 (en) * 1985-10-04 1989-11-23 Spadini, Paolo Electric contact device for clocks
US4717795A (en) * 1985-10-24 1988-01-05 Kontakta Alkatreszgyar Precision snap-action switch with stiffening ribs between an actuating bulge and support for the actuating spring element
US4652706A (en) * 1986-01-29 1987-03-24 Tower Manufacturing Corporation Double pole switch construction
US5585774A (en) * 1994-09-01 1996-12-17 General Electric Company Condition-responsive electric switch mechanism
US6552645B2 (en) * 2001-06-06 2003-04-22 Robert A. Kuczynski Bimetallic actuator for electronic components and other devices
US6538553B2 (en) * 2001-07-13 2003-03-25 Tsung-Mou Yu Switching element for electric switch
US20050134424A1 (en) * 2003-12-19 2005-06-23 Albert Huang Bimetallic strip for a circuit breaker
DE102009061050B4 (en) * 2009-06-05 2019-09-05 Marcel P. HOFSAESS Bimetal part and thus equipped temperature-dependent switch

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE19300E (en) * 1934-09-04 Electric switch
US1960020A (en) * 1933-03-29 1934-05-22 Burgess Lab Inc C F Snap switch
US2181068A (en) * 1937-11-26 1939-11-21 Micro Switch Corp Electric snap switch construction
US2349008A (en) * 1940-12-16 1944-05-16 Sauter Fritz Snap-action rocker device
US2340615A (en) * 1942-03-20 1944-02-01 Radio Patents Corp Snap action device
US2361202A (en) * 1942-09-01 1944-10-24 Bryant Electric Co Circuit interrupter
US2469686A (en) * 1946-05-06 1949-05-10 First Ind Corp Gauging switch

Also Published As

Publication number Publication date
US2701475A (en) 1955-02-08
FR1031842A (en) 1953-06-26

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