US2537682A - Electric switch - Google Patents

Electric switch Download PDF

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Publication number
US2537682A
US2537682A US774315A US77431547A US2537682A US 2537682 A US2537682 A US 2537682A US 774315 A US774315 A US 774315A US 77431547 A US77431547 A US 77431547A US 2537682 A US2537682 A US 2537682A
Authority
US
United States
Prior art keywords
blade
tongue
edge
switch
electric switch
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 - Lifetime
Application number
US774315A
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English (en)
Inventor
Ljungfeldt Bror Ake Hilding
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
Application granted granted Critical
Publication of US2537682A publication Critical patent/US2537682A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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
    • Y10T74/18856—Oscillating to oscillating
    • Y10T74/18864—Snap action
    • 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
    • Y10T74/18856—Oscillating to oscillating
    • Y10T74/18864—Snap action
    • Y10T74/18872—Plate spring

Definitions

  • Glaietsr 1 This invention relates to electric switches of the snap-action type wherein one of the contact memrs n the rm 0i a bla e w ch s moun e for rocking movement at one end, whereas" the other end thsreei is tree and a a ted. o cooperate with the other contact member, and wherein furthermore the blade is provided with a resilient ,l. .2411? with th e 9 thetenelis bearin with a. cer Pressure against a suitable abutment member.
  • the line of engagement between the tongue and the abutment member norma ly lies on one side of the plane through the base of the tongue and the rocking axis of the blade, and when said line of engagement is approached to ward said plane, as by moving the tongue, the tension of the resilient tongue is increased until the line of engagement has just passed the plane, when the blade is suddenly rocked by the tongue.
  • the main object of the present invention is to provide an electric switch of the above-mentioned type wherein the blade-shaped contact member is caused to slide in .a longitudinal direction before being rocked so that the contact surfaces will be rubbed against each other and thus kept clean and free from oxide films and other impurities.
  • Fig. l is a side elevation of the switch in its closed position
  • Fig. 2 is a similar view of the switch in its open position
  • Fig. 3 is a bottom plan view of the switch.
  • Fig. 4 is a plan view of the blade-shaped contact member used in the switch.
  • a base plate made from a suitable insulating material, such as Bakelite.
  • the base plate is provided on its underside with two spaced bearing members 2 and 3 having bores through which a pin 4 extends.
  • the pin ti carries an operating lever, or arm, 5 which may be rocked on the pin and which extends through an opening provided in the base plate l.
  • a bracket 6 having a contact '1' is secured to the under side of the base plate E near one end thereof, as by a screw 8.
  • a blade-shaped contact member 9 has a free end extending into the space between the bracket 65 and the base plate I and carries a contact ll for cooperation with the contact 7.
  • the blade 9 preferably consists of a leaf spring in which a resilient tongue 12 has been formed, as by stamping or cutting out a U-shaped aperture, compare also Fig. 4.
  • base ll of the tongue 12 is adjacent the free end of the blade 9-, and the tongue extends rear-.- wardly. Between the free end of the tongue It and the opposed transverse edge It of the U? shaped aperture in the blade 9 there is a space adapted to receivethe. end of: the rockable lever,
  • the blade i3 may also be provided with a rear U..-shapedextension l3 which is. flexible so. as to. permit longitudinal movement of the. blade. and may. be secured to the base plate at its rear end, as by a screw l0. ihe portion l3 of the blade is not necessary, however, and the blade can terminate freely some distance behind the edge It.
  • the end of the operating lever, or arm, 5 extending into the space formed between the edge 16 and the free end of the tongue 12 has preferably two oppositely located indentations or grooves 54 and i5 for receiving said tongue and said edge, respectively, the distance between the deepest points of the indentations being somewhat greater than the width of said space so that the resilient tongue I2 will be placed under tension when the arm 5 is inserted into the aperture in the blade.
  • Fig. 1 shows the position of the different parts of the switch when the contacts I and II are closed. In this position the free end of the tongue 12 is bent upwards and lies above the blade 9, as shown. When the operating lever, or.
  • the tongue !2 is preferably made in are separated.
  • the blade 9 may also consist at a separate resilient member which is secured to the blade in any suitable manner, as by riveting.
  • a separate resilient member which is secured to the blade in any suitable manner, as by riveting.
  • two or more tongues may be used.
  • the operating member may be constructed and shaped in difierent ways within the scope of the invention.
  • An electric switch of the snap-action type comprising a base member, a first contact member supported by said base member, a second contact member in the shape of a blade supported for rocking movement at one end whereas the other and free end thereof is adapted to cooperate with said first contact member and to be moved towards and away from the latter for closing and opening the switch, said blade being provided with an aperture with an edge forming a fulcrum and with a resilient tongue extending from the free end of the blade toward said edge and terminating freely at some distance from the edge, and a switch operating member rotatably mounted on a pivot in said base member and having an arm with opposite grooves below said pivot and extending into the aperture between the end of the resilient tongue'and the fulcrum edge with the tongue and the edge abutting against the opposite grooves of the arm, the fulcrum edge forming a pivotal connection with the operating member and the arm being so dimensioned as to place the tongue under stress tending to rock the blade with snap-action about said fulcrum edge when the operating member is rotate

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  • Slide Switches (AREA)
US774315A 1946-09-24 1947-09-16 Electric switch Expired - Lifetime US2537682A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE266748X 1946-09-24

Publications (1)

Publication Number Publication Date
US2537682A true US2537682A (en) 1951-01-09

Family

ID=20306639

Family Applications (1)

Application Number Title Priority Date Filing Date
US774315A Expired - Lifetime US2537682A (en) 1946-09-24 1947-09-16 Electric switch

Country Status (4)

Country Link
US (1) US2537682A (en(2012))
CH (1) CH266748A (en(2012))
FR (1) FR958149A (en(2012))
NL (1) NL131702C (en(2012))

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2685007A (en) * 1950-10-02 1954-07-27 Fischer Karl Electric snap or quick break switch
US2695524A (en) * 1951-01-05 1954-11-30 Honeywell Regulator Co Alternate action snap mechanism
US2896041A (en) * 1957-05-17 1959-07-21 Dormeyer Corp Switch
US2899512A (en) * 1956-12-13 1959-08-11 burch
US2929891A (en) * 1958-01-13 1960-03-22 Robertshaw Fulton Controls Co Snap acting switch
US3038043A (en) * 1960-06-08 1962-06-05 Robertshaw Fulton Controls Co Snap acting switch
US4414520A (en) * 1980-07-04 1983-11-08 Jonny Ruuth Thermostat
US20170096841A1 (en) * 2015-09-14 2017-04-06 DWFritz Automation, Inc. Band-based lock

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE915955C (de) * 1950-10-03 1954-08-02 Karl Fischer Elektrischer Schnappschalter
US2824197A (en) * 1954-09-28 1958-02-18 Electro Snap Switch & Mfg Co Toggle switches
US2808490A (en) * 1955-06-14 1957-10-01 Electro Snap Switch & Mfg Co Actuator for momentary switch
GB1103101A (en) * 1963-08-29 1968-02-14 Smiths Industries Ltd Improvements in or relating to snap action electric switches
DE1235404B (de) * 1964-10-16 1967-03-02 Marquardt J & J Elektrischer Schnappschalter
DE1265814B (de) * 1966-07-26 1968-04-11 Marquardt J & J Elektrischer Schnappschalter

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2135864A (en) * 1936-09-23 1938-11-08 Emerson Electric Mfg Co Circuit breaker
US2460087A (en) * 1945-06-26 1949-01-25 Sidney Geoffrey Young Snap-action electric switch

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2135864A (en) * 1936-09-23 1938-11-08 Emerson Electric Mfg Co Circuit breaker
US2460087A (en) * 1945-06-26 1949-01-25 Sidney Geoffrey Young Snap-action electric switch

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2685007A (en) * 1950-10-02 1954-07-27 Fischer Karl Electric snap or quick break switch
US2695524A (en) * 1951-01-05 1954-11-30 Honeywell Regulator Co Alternate action snap mechanism
US2899512A (en) * 1956-12-13 1959-08-11 burch
US2896041A (en) * 1957-05-17 1959-07-21 Dormeyer Corp Switch
US2929891A (en) * 1958-01-13 1960-03-22 Robertshaw Fulton Controls Co Snap acting switch
US3038043A (en) * 1960-06-08 1962-06-05 Robertshaw Fulton Controls Co Snap acting switch
US4414520A (en) * 1980-07-04 1983-11-08 Jonny Ruuth Thermostat
US20170096841A1 (en) * 2015-09-14 2017-04-06 DWFritz Automation, Inc. Band-based lock

Also Published As

Publication number Publication date
FR958149A (en(2012)) 1950-03-03
NL131702C (en(2012))
CH266748A (fr) 1950-02-15

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