US2582034A - Snap action switch - Google Patents

Snap action switch Download PDF

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Publication number
US2582034A
US2582034A US69922A US6992249A US2582034A US 2582034 A US2582034 A US 2582034A US 69922 A US69922 A US 69922A US 6992249 A US6992249 A US 6992249A US 2582034 A US2582034 A US 2582034A
Authority
US
United States
Prior art keywords
actuated
compression
arms
switch
support member
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
US69922A
Other languages
English (en)
Inventor
George M Hausler
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.)
General Electric Co
Original Assignee
General Electric 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 General Electric Co filed Critical General Electric Co
Priority to US69922A priority Critical patent/US2582034A/en
Priority to FR1008040D priority patent/FR1008040A/fr
Priority to GB26191/50A priority patent/GB676279A/en
Application granted granted Critical
Publication of US2582034A publication Critical patent/US2582034A/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
    • 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
    • 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
    • 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

Definitions

  • This invention relates to electrical switches and more particularly to an improved snap action switch providing positive contact pressure until the moment of operation.
  • Such switches are used for pressure, float, temperature, and other applications where the operating means travels slowly but the contacts must snap quickly and positively.
  • my invention comprises a unitary, flat, resilient actuated member in a snap action switch which member provides the switch with positive contact pressure until the moment of operation.
  • Fig. 1 is a side elevation partly in section of a switch illustrative of my invention
  • Fig. 2 is a sectional view taken on line 2--2 of the Fig. 1
  • Fig. 3 is a plan view with cover removed of Fig. 1
  • Fig. 4 is a side elevation showing the contacts in open position
  • Fig. 5 is a side elevation partly in section of a single contact switch in accordance with my invention
  • Fig. 6 is a sectional view taken on line 6-6 of Fig. 5
  • Fig. 7 is a plan view with cover removed of Fig. 5.
  • my improved switch I comprises a unitary, fiat, resilient actuated member 2 biased against and supported by a resilient, u-shaped support member 3 by means of a flat, L-shaped, resilient spring member 4 actuated by an actuating member 5.
  • Actuated member 2 comprises an integral strip of thin material slotted longitudinally to form two tension arms 43 and 44, two pivot compression arms 28 and 29, and an actuated compression arm 23, all of the arms being substantially parallel, as shown in Fig. 3.
  • Actuated member 2 is further provided with a projection 32 centrally located at one end of actuated member 2, as shown in Fig. 3.
  • Each of the tension arms 43 and 44 has its ends connected to opposite ends of the actuated member 2.
  • Each of the pivot arms 28 and 29 has one end inwardly disposed and its other end connected to end 33 of the actuated member 2.
  • the actuated compression arm 23 has one end inwardly disposed and its other end connected to the opposite end of actuated member 2 from end 33. I have found that to provide a proper snap action of actuated member 2, it is preferable that the inwardly disposed ends of pivot compression arms 28 and 29 extend some distance beyond the inwardly disposed end of actuated compression arm 23. This snap action will be described in detail later.
  • One or more contacts 6 are secured to end 33 of actuated member 2, as shown in Fig. 3.
  • Fig. 1 shows the contacts 6 in closed position. As the actuating member 5 is depressed, positive contact pressure is maintained until the actuated member 2 snaps to the position shown in Fig. 4 and the contacts 6 are thereby opened. When pressure on the actuating member 5 is released, the reverse action takes place.
  • I provide a rectangular mounting plate I on the outer surfaceof which are secured terminals 9 and Ill. Terminals 9 and ID are located adjacent to the sides at one end of mounting plate 1. Each of the terminals 9 and I9 is provided with an aperture to accommodate terminal screws l2. In order to provide space for the threaded end of terminal screws l2 when secured in terminals 9 and I0, U-shaped notches l3 are provided at the sides of mounting plate I, as shown in Fig. 4.
  • a recess 8 is provided in the face of support member 1 adjacent to support member 3 and screw l5, as shown in Fig. 1. The reason for this recess will be explained in detail later.
  • I bend portions l8 and I1 respectively of terminals 9 and I0 into opposed U-shapes, one leg of each U-shaped portion lying against the outside surface and one leg of each against the inside surface of mounting plate I. Screws It or other suitable means are passed through aligned apertures in the legs of U-shaped portions 16 and I1 and the mounting plate I. The heads of screws l8 are suitably plated to form contact buttons l9 electrically connected to terminals 9 and II].
  • actuated member 2 In order to open and close a circuit connected to terminals 9 and I0, actuated member 2 s biased against the shorter leg 20 of support member 3 by means of spring member 4.
  • spring member 4 has its end 2! bent downward at approximately a right angle, as shown in Fig. 1, and its end 22 bent in a concave manner with respect to actuated compression arm 23 of actuated member 2, also as shown in Fig. 1.
  • a notch 24 is provided in the longer leg 25 of support member 3, and a notch 26 is provided in the inwardly disposed end o1 actuated compression arm 23 of actuated member 2.
  • Notches 24 and 26 respectively receive the ends 2
  • leg 20 of support member 3 is formed with pivot bends 21 to receive the inwardly disposed ends of pivot compression arms 28 and 23 of actuated member 2.
  • Spring member 4 is tapered in order that ends 2
  • the recess 8 adjacent to support member 3 is provided in order that the bends 21 of short leg 20 of support member 3 may be adjusted by means of screw I5 to a position nearer to or farther from the longer leg 25 of the same member. For example, by tightening screw l5, bends 21 of support member 3 are moved in the direction of long leg 25, while loosening screw I5 moves bends 21 in the opposite direction. Thus a proper bias between spring member 4 and actuated member 2 is attained.
  • Actuated member 2 is formed in one integral piece and, in order to provide space for operation of the same, leg 20 of support member 3 is provided with a recess 30, as shown in Fig. 3.
  • Leg 25 of support member 3 is provided with a rectangular aperture 3
  • Housing 35 is provided with a projecting portion 33 aligned above the curved portion 31 of spring member 4.
  • Portion 36 oi. housing 35 is provided with a cylindrical aperture or sleeve 38 which acts as a guide for actuating member 5.
  • the lower portion 39 of actuating member 5 is made larger in diameter than the portion which slides in the aperture 38 in order that the inner surface of housing 35 may act as a stop limiting the upward motion of actuating member 5.
  • Housing 35 is secured to mounting plate I by nuts 40 and bolts 4
  • Figs. 1, 2 and 4 To show the manner of operation of switch attention is directed to Figs. 1, 2 and 4 in order.
  • contacts 6 are closed upon contact buttons l9 and the circuit between terminals 3 and I is closed.
  • end 22 of spring member 4 is pressed downward carrying the end of leg 23 of the actuated member 2 downward also.
  • the contacts 6 maintain positive pressure on contact buttons l8 until the end 32 of actuated member 2 passes through a point of alignment with the pivot point 21, which in the illustrated embodiment coincides substantially with the center of aperture 3
  • actuating member 5 is released and by bias of actuated member 2 moves upward thus allowing the inwardly disposed end of actuated compression arm 23 of actuated member 2 to move upward.
  • end of arm 23 of actuated member 2 passes the central balance point again, the reverse action takes place and contacts 6 are returned to the closed position shown in Fig. 1.
  • Figs. 5, 6 and '7 are provided.
  • a single contact 6 is provided on the actuated member 2 and a terminal 42 carrying a single contact button I9 is secured to mounting plate 1 adjacent one end thereof.
  • Terminal 45 is provided in the opposite end of mounting plate I. Terminal 45 is apertured to accommodate a terminal screw I2, and mounting plate I has a U-shaped notch l3 to provide space for the threaded end of screw l2 when the latter is in serted in the aperture in terminal 45.
  • Rivet l4 and screw l5 pass through suitable aligned apertures in terminal 45, mounting plate I, and U-shaped support member 3 thus electrically connecting terminal 45 to support member 3 as well as securing both to the mounting plate I.
  • the single break switch shown in Figs. 5 to 7 inclusive is the same as the double break switch shown in Figs. 1 to 4 inclusive except that stop 34 in the case of the single break switch is formed as a projection centrally located on the end wall of housing 35 and aligned in the path of end 33 of actuated member 2.
  • the switch may also be built as a single pole double throw switch by substituting another contact and terminal structure for stop 34.
  • a snap action switch comprising a fixed contact and a movable contact cooperating therewith, a thin flat resilient member supporting said movable contact, said member having a plurality of longitudinal slots defining a plurality of compression arms, a plurality of tension arms each positioned between adjacent compression arms, said tension and compression arms being substantially parallel, and a pair of transverse end portions each connected respectively to a different end of said tension arms and connecting said tension arms to one end of each of said compression arms, a fixed support member engaging the other ends of a plurality of said compression arms, and a resilient movable member engaging said fixed support member and engaging the other end of another of said compression arms, said fixed and movable members coacting in establishing compression forces in said compression members, said end portions being movable between two positions responsive to movement of said movable member, and said movable contact being supported on one of said end portions.
  • a snap action switch comprising a fixed contact and a movable contact cooperating therewith, a thin flat resilient member supporting said movable contact, said member having a plurality of longitudinal slots defining a plurality of compression arms, a plurality of tension arms each positioned between adjacent compression arms, said tension and compression arms being substantially parallel, and a pair of transverse end portions each connected respectively to a different end of said tension arms and connecting said tension arms to one end of each of said compression arms, fixed members engaging the other ends of a plurality of said compression arms, and a movable member engaging the other end of another of said compression arms, said fixed and movable members establishing compression forces in said compression members, said end portions being movable between two positions responsive to movement of said movable member, and said movable contact being supported on one of said end portions.
  • a snap action switch comprising a fixed contact and a movable contact cooperating there with, a thin fiat resilient member supporting said movable contact, said member having a pair of longitudinal slots defining a pair of compression arms, a tension arm, and a pair of transverse end portions each connected respectively to a different end of said tension arm and connecting said tension arm to one end of each of said compression arms, an adjustable resilient support member engaging the other end of one of said compression arms, a movable member engaged by said support member and engaging the other end of the other of said compression arms, said other end of said other of said compression arms extending beyond the other end of said one compression arm, said support and movable members cooperating in establishing compression forces in said compression members, and means for adjusting said support member to vary the magnitude of said compression forces, said end portions being movable between two positions responsive to movement of said movable member, and said movable contact being supported on one of said end ortions.
  • a snap action switch comprising a fixed contact and a movable contact cooperating therewith, a thin fiat resilient actuated member supporting said movable contact, said actuated member having a plurality of longitudinal slots de- ,sion arms being substantially parallel, means supporting said actuated member comprising a U-shaped resilent support member positioned beneath said actuated member, one leg of said support member being located beneath and extending in the direction of said opposite end of said actuated member, said one leg having an aper-- ture therein, the second leg of said support member being located beneath and extending in the direction of the inwardly disposed ends of said pivot compression arms, a notch in said second leg to permit actuation of said actuated member, bends in said second leg of said support member arranged to engage the inwardly disposed ends of said pivot compression arms, a flat L-shaped resilient spring member, the ends of said spring member being bent one over the free end of said actuated compression arm and the other over the free end of said one leg of said support
  • a snap action switch comprising a fixed contact and a movable contact cooperating therewith, a thin fiat unitary resilient member supporting said movable contact, said member hav-- ing at least one tension arm, and at least one actuated compression arm and a plurality of pivot compression arms formed integrally with said tension arm and substantially parallel thereto, each of said pivot compression arms having one end inwardly disposed and its other end joined to one end of said tension arm, said actuated compression arm having one end inwardly disposed and its other end joined to the other end of said tension arm, a fixed support member engaging the inwardly disposed ends of said pivot compression arms, and a resilient movable member engaging the inwardly disposed end of said actuated compression arm, said fixed support member and said resilient movable member cooperating in establishing compression forces in said compression arms and tension forces in said tension arm, said end ortions of said tension arm being movable between two positions responsive to movement or said movable member, mb and said movable contact being supported on one Re. 17 646

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  • Battery Mounting, Suspending (AREA)
  • Push-Button Switches (AREA)
US69922A 1949-01-08 1949-01-08 Snap action switch Expired - Lifetime US2582034A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US69922A US2582034A (en) 1949-01-08 1949-01-08 Snap action switch
FR1008040D FR1008040A (fr) 1949-01-08 1950-01-06 Interrupteurs à rupture brusque
GB26191/50A GB676279A (en) 1949-01-08 1950-10-26 Improvements in and relating to snap action toggle switches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US69922A US2582034A (en) 1949-01-08 1949-01-08 Snap action switch

Publications (1)

Publication Number Publication Date
US2582034A true US2582034A (en) 1952-01-08

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ID=10239764

Family Applications (1)

Application Number Title Priority Date Filing Date
US69922A Expired - Lifetime US2582034A (en) 1949-01-08 1949-01-08 Snap action switch

Country Status (3)

Country Link
US (1) US2582034A (fr)
FR (1) FR1008040A (fr)
GB (1) GB676279A (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2771527A (en) * 1954-07-16 1956-11-20 Gen Electric Snap action switch
US2798915A (en) * 1954-01-04 1957-07-09 James P Watson Snap acting mechanism
US2821587A (en) * 1955-02-02 1958-01-28 Cherry Electrical Prod Snap-action switch
US2849558A (en) * 1954-09-16 1958-08-26 Clarostat Mfg Co Inc Switch
US2916575A (en) * 1956-11-28 1959-12-08 Haegglund & Soener Ab Quick action switch
US2936350A (en) * 1957-12-27 1960-05-10 American Mach & Foundry Snap action devices
US2985730A (en) * 1958-04-30 1961-05-23 Bryant Electric Co Switch
US4209677A (en) * 1979-03-15 1980-06-24 Eaton Corporation Precision snap switch with improved one piece contact support and terminal member
WO1983002848A1 (fr) * 1982-02-09 1983-08-18 Mironenko, Vyacheslav, Georgievich Microcommutateur

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3098903A (en) * 1961-07-21 1963-07-23 Cherry Electrical Prod Snap action switch
CN107845525B (zh) * 2017-12-04 2020-06-30 漳州聚安美电气科技有限公司 带强制分离机构的微动开关

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE17646E (en) * 1930-04-22 Tempebatuhe-contbolling appabatus
CH206527A (de) * 1938-08-10 1939-08-15 Therma Ag Kipphebelschalter.
US2170748A (en) * 1935-12-04 1939-08-22 Micro Switch Corp Snap switch
US2228523A (en) * 1937-12-31 1941-01-14 Honeywell Regulator Co Snap action switch
US2476045A (en) * 1946-08-23 1949-07-12 First Ind Corp Compact snap acting device
US2508040A (en) * 1946-04-15 1950-05-16 First Ind Corp Snap acting mechanism

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE17646E (en) * 1930-04-22 Tempebatuhe-contbolling appabatus
US2170748A (en) * 1935-12-04 1939-08-22 Micro Switch Corp Snap switch
US2228523A (en) * 1937-12-31 1941-01-14 Honeywell Regulator Co Snap action switch
CH206527A (de) * 1938-08-10 1939-08-15 Therma Ag Kipphebelschalter.
US2508040A (en) * 1946-04-15 1950-05-16 First Ind Corp Snap acting mechanism
US2476045A (en) * 1946-08-23 1949-07-12 First Ind Corp Compact snap acting device

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2798915A (en) * 1954-01-04 1957-07-09 James P Watson Snap acting mechanism
US2771527A (en) * 1954-07-16 1956-11-20 Gen Electric Snap action switch
US2849558A (en) * 1954-09-16 1958-08-26 Clarostat Mfg Co Inc Switch
US2821587A (en) * 1955-02-02 1958-01-28 Cherry Electrical Prod Snap-action switch
US2916575A (en) * 1956-11-28 1959-12-08 Haegglund & Soener Ab Quick action switch
US2936350A (en) * 1957-12-27 1960-05-10 American Mach & Foundry Snap action devices
US2985730A (en) * 1958-04-30 1961-05-23 Bryant Electric Co Switch
US4209677A (en) * 1979-03-15 1980-06-24 Eaton Corporation Precision snap switch with improved one piece contact support and terminal member
WO1983002848A1 (fr) * 1982-02-09 1983-08-18 Mironenko, Vyacheslav, Georgievich Microcommutateur
FR2529380A1 (fr) * 1982-02-09 1983-12-30 Inst Vzryvozaschischennogo R Micro-interrupteur

Also Published As

Publication number Publication date
FR1008040A (fr) 1952-05-13
GB676279A (en) 1952-07-23

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