US2806927A - Switch blade - Google Patents

Switch blade Download PDF

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Publication number
US2806927A
US2806927A US51378355A US2806927A US 2806927 A US2806927 A US 2806927A US 51378355 A US51378355 A US 51378355A US 2806927 A US2806927 A US 2806927A
Authority
US
United States
Prior art keywords
blade
arms
switch blade
contact element
spring
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
Other languages
English (en)
Inventor
Alan A Allen
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
Priority to BE543796D priority Critical patent/BE543796A/xx
Priority to US414046A priority patent/US2776397A/en
Application filed by Individual filed Critical Individual
Priority to US51378355 priority patent/US2806927A/en
Priority to DEA23869A priority patent/DE1059530B/de
Priority to FR1142435D priority patent/FR1142435A/fr
Priority to GB3651855A priority patent/GB782880A/en
Application granted granted Critical
Publication of US2806927A publication Critical patent/US2806927A/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
    • 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
    • H01H5/20—Energy stored by deformation of elastic members by flexing of blade springs single blade moved across dead-centre position
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49915—Overedge assembling of seated part
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49938—Radially expanding part in cavity, aperture, or hollow body
    • 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
    • Y10T292/00—Closure fasteners
    • Y10T292/48—Seals
    • Y10T292/481—Compressible disk

Definitions

  • This invention relates to a switch blade construction of the type used in snap switches.
  • the blade is of the general type shown in Pat. No. 2,511,526 and is an improvement on the blade disclosed in said patent.
  • Another object of the invention is to provide inexpensive and simplified means for holding the blade in the mentioned stressed condition.
  • the present blade construction comprises a hardened flat spring and a relatively softer contact element, it being a further object of the invention to provide improved means that utilizes said contact element as the blade stressing means.
  • Fig. 1 is a plan view of a switch blade embodying the features of the present invention.
  • Fig. 2 is a longitudinal sectional view thereof as taken on line 2--2 of Fig. 1.
  • Fig. 3 is an enlarged fragmentary plan view of the right hand end of the switch blade as in Figs. 1 and 2.
  • Fig. 4 is a cross-sectional view as taken on line 44 of Fig. 3.
  • Fig. 5 is a plan view showing the spring blade of said switch blade in unstressed condition and the manner of assembly of the stress-holding contact.
  • Fig. 6 is a cross-sectional view similar to Fig. 4 before the blade is stressed and finally assembled, as in said Fig. 4.
  • the present switch blade construction comprises, generally, a spring blade 16, and a combined contact element and blade-stressing means 11.
  • the blade 10 is formed of hard spring metal having suitable resilience and electric conductivity. Said blade is initially formed to have a generally rectangular shape, as in Fig. 5, and, at one end, is provided with an end-open slot 12 that defines similar spring arms 13. As shown, slot 12 has substantial width. Near the open end of the slot, the inner edges of the arms are provided with complementary and preferably semi-circular indentations 14 that, when brought together, form a circular opening in the bifurcated spring blade end. Each arm 13, in substantial alignment with indentation 14 therein, is provided with a hole 15. The opposite end of the blade may be provided with a hole 16 for a fastening screw or the like for securing the blade as to a platform 17 (Fig. 2).
  • the combined contact element and blade-stressing means 11 is preferably initially formed as a member shaped like a dumb-bell and having good electrical-conducting properties.
  • Hard tempered fine silver is an example of the metal of which said element may be for-med. The same, while hard tempered is yet relatively soft and is capable of being formed after assembly, as desired.
  • element 11 is initially formed to have spaced contact flanges 18 that are connected by a preferably cylindrical neck 19 that is approximately diametrally the size of the circular opening formed by indentations 14 when brought together.
  • the diametral size of flanges 13 is such that the marginal portions thereof overstand at least part of the holes 15 when arms 13 are brought together, as in Figs. 1, 3, and 4.
  • spring blade 10 While the size of spring blade 10 may vary considerably, the same, from the center of hole 16 to the bifurcated end, may be in the nature of one-half inch in blades used in miniature switches. Hence, it will be seen that the arms 13 may readily be brought together, after element 11 has been placed in the dot-dash line position of Figs. 5 and 6 and, while so held, suitable tool or die means may be employed to swage the flanges 18 into the holes 15 to form key portions 20 that reside in said holes, as in Fig. 4. While thus swaging the key portions 24) into holes 15, the die means may, at the same time, impart a convex form to said flanges, as shown at 21.
  • a switch blade comprising a flat spring blade having an end-open slot defining spring arms, said arms, adjacent their free ends, having openings formed therein, and a contact element in the slot and having portions in overstanding relation to said openings, said overstanding contact element portions extending into said openings.
  • a switch blade according to claim 1 the free ends of said arms being flexed toward each other on opposite sides of the contact element.
  • a switch blade according to claim 1 said contact element being provided with spaced contact flanges and a connecting neck portion, and said arms, adjacent their free ends, having opposed indentations formed therein, said arms being flexed toward each other, and the indentations, when the arms are so flexed, accommodating the mentioned contact element neck portion.
  • each arm having an opening therein, a contact element disposed between the free ends of the arms and provided with portions overstanding said openings and partly entered into said openings to key lock the spring arms in the mentioned flexed position.

Landscapes

  • Tumbler Switches (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Push-Button Switches (AREA)
US51378355 1954-03-04 1955-06-07 Switch blade Expired - Lifetime US2806927A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
BE543796D BE543796A (fr) 1955-06-07
US414046A US2776397A (en) 1954-03-04 1954-03-04 Temperature compensated motor control system
US51378355 US2806927A (en) 1955-06-07 1955-06-07 Switch blade
DEA23869A DE1059530B (de) 1955-06-07 1955-11-30 Elektrischer Schnappschalter
FR1142435D FR1142435A (fr) 1955-06-07 1955-12-16 Interrupteur à action brusque
GB3651855A GB782880A (en) 1955-06-07 1955-12-20 Improvements in snap-action electric switches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US51378355 US2806927A (en) 1955-06-07 1955-06-07 Switch blade

Publications (1)

Publication Number Publication Date
US2806927A true US2806927A (en) 1957-09-17

Family

ID=24044666

Family Applications (1)

Application Number Title Priority Date Filing Date
US51378355 Expired - Lifetime US2806927A (en) 1954-03-04 1955-06-07 Switch blade

Country Status (5)

Country Link
US (1) US2806927A (fr)
BE (1) BE543796A (fr)
DE (1) DE1059530B (fr)
FR (1) FR1142435A (fr)
GB (1) GB782880A (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3013131A (en) * 1957-10-11 1961-12-12 Contac Corp Snap switch
US3117204A (en) * 1960-11-25 1964-01-07 Gen Motors Corp Latch trip thermal circuit controller
US3192351A (en) * 1961-05-08 1965-06-29 Fansteel Metallurgical Corp Electrical contact disc
US3192346A (en) * 1963-06-03 1965-06-29 Gen Electric Current and temperature snap acting devices
US3349206A (en) * 1965-04-23 1967-10-24 Kim Young Won Thermostat switch and variable adjusting means therefor
US3539742A (en) * 1968-12-04 1970-11-10 Rolamite Technology Inc Electrical snap switch having stressed blade
EP0015782A1 (fr) * 1979-03-13 1980-09-17 Ranco Incorporated Interrupteurs à action brusque
US5585774A (en) * 1994-09-01 1996-12-17 General Electric Company Condition-responsive electric switch mechanism
US20060223384A1 (en) * 2005-03-31 2006-10-05 Schuh Anthony E Battery terminal clamp

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3172970A (en) * 1962-06-27 1965-03-09 Fansteel Metallurgical Corp Snap-action electrical switch with slotted normally unstressed movable contact blade
DE1215239B (de) 1962-12-01 1966-04-28 Erich Kieback Dr Ing Mikroschalter, insbesondere zum Antrieb durch Fuehler von Reglern
DE1255452B (de) * 1964-04-14 1967-11-30 Erich Kieback Dr Ing Hilfsvorrichtung fuer das Nieten der Kontaktbleche auf laengsgeschlitzte Schnappfedern von Mikroschaltern
DE2860881D1 (en) * 1977-07-15 1981-10-29 Ranco Inc Snap acting switch blade and method for manufacturing it
US4250367A (en) * 1978-07-14 1981-02-10 Ranco Incorporated Snap action switch blades
FR2988515A1 (fr) * 2012-03-21 2013-09-27 Hager Electro Sas Dispositif de commutation bistable a moyen elastique bistable

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2199974A (en) * 1937-02-26 1940-05-07 Stator Corp Controlling device
US2511526A (en) * 1946-07-01 1950-06-13 Erling P Bugge Snap switch

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE924465C (de) * 1939-01-19 1955-03-03 Siemens Ag Elektrischer Kurzwegschalter
US2300489A (en) * 1940-03-01 1942-11-03 Deutschmann Arnold Switch
US2324798A (en) * 1940-05-01 1943-07-20 Mu Switch Corp Switch
FR1003765A (fr) * 1947-02-22 1952-03-21 Dispositif à déclic instantané perfectionnés et leurs applications

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2199974A (en) * 1937-02-26 1940-05-07 Stator Corp Controlling device
US2511526A (en) * 1946-07-01 1950-06-13 Erling P Bugge Snap switch

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3013131A (en) * 1957-10-11 1961-12-12 Contac Corp Snap switch
US3117204A (en) * 1960-11-25 1964-01-07 Gen Motors Corp Latch trip thermal circuit controller
US3192351A (en) * 1961-05-08 1965-06-29 Fansteel Metallurgical Corp Electrical contact disc
US3192346A (en) * 1963-06-03 1965-06-29 Gen Electric Current and temperature snap acting devices
US3349206A (en) * 1965-04-23 1967-10-24 Kim Young Won Thermostat switch and variable adjusting means therefor
US3539742A (en) * 1968-12-04 1970-11-10 Rolamite Technology Inc Electrical snap switch having stressed blade
EP0015782A1 (fr) * 1979-03-13 1980-09-17 Ranco Incorporated Interrupteurs à action brusque
US4278855A (en) * 1979-03-13 1981-07-14 Ranco Incorporated Snap action switch
US5585774A (en) * 1994-09-01 1996-12-17 General Electric Company Condition-responsive electric switch mechanism
US20060223384A1 (en) * 2005-03-31 2006-10-05 Schuh Anthony E Battery terminal clamp

Also Published As

Publication number Publication date
GB782880A (en) 1957-09-11
FR1142435A (fr) 1957-09-18
BE543796A (fr) 1900-01-01
DE1059530B (de) 1959-06-18

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