US3196222A - Electrical contact assembly with offset contact structure - Google Patents

Electrical contact assembly with offset contact structure Download PDF

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Publication number
US3196222A
US3196222A US8779A US877960A US3196222A US 3196222 A US3196222 A US 3196222A US 8779 A US8779 A US 8779A US 877960 A US877960 A US 877960A US 3196222 A US3196222 A US 3196222A
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US
United States
Prior art keywords
contact
elements
assembly
contact member
insulating support
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
US8779A
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English (en)
Inventor
Maelstaf Serge
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.)
ELECTRO COMMUTATION L
L'ELECTRO-COMMUTATION
Original Assignee
ELECTRO COMMUTATION L
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 ELECTRO COMMUTATION L filed Critical ELECTRO COMMUTATION L
Application granted granted Critical
Publication of US3196222A publication Critical patent/US3196222A/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
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B9/00—Tables with tops of variable height
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/04—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts
    • H01H11/06—Fixing of contacts to carrier ; Fixing of contacts to insulating carrier
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/54—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions
    • H01H19/56—Angularly-movable actuating part carrying contacts, e.g. drum switch
    • H01H19/58—Angularly-movable actuating part carrying contacts, e.g. drum switch having only axial contact pressure, e.g. disc switch, wafer switch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/54—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions
    • H01H19/56—Angularly-movable actuating part carrying contacts, e.g. drum switch
    • H01H19/566—Angularly-movable actuating part carrying contacts, e.g. drum switch in which the contact making surfaces are inclined, i.e. not perpendicular, to the axial or radial direction

Definitions

  • the invention provides, in the case of such assemblies that each contact member and two elements constituting the insulating rigid support shall have a staggered relationship in such a manner that said contact members are completely fixed in position when the two elements have been joined together along two plane faces.
  • the assembly will then have been achieved without causing any stress in the materials which are brought together, and the above mentioned drawbacks are substantially avoided.
  • the cost of the assembly is substantially reduced, since the manufacturing operations become extremely simple and do not entail any complicated tooling.
  • the invention consists in an electrical circuit connection member of the kind comprising one or more contact members fixed in relation to a rigid insulating support through which they extend, in which the rigid insulating support is constituted by two elements, having plane faces which are rigidly joined together along a plane into which recesses formed in the thickness of the said elements open from each side of the support, each recess of one of the elements co-operating with a recess of the other element, each two cro-operating recesses both partly extending in the prolongation of the other and also partly masking the adjacent element, the part of each Contact member which passes through the insulating support being formed and dimensioned so as to completely till up two co-operating recesses.
  • FIGURE l shows an assembly comprising certain parts of a rotary selector switch, in plan view from the side or face including the contact surfaces of the studs,
  • FIGURE 2 is a cross-section along the line II-II of FIGURE 1,
  • FIGURE 3 shows a perspective view of one of the contact studs of FIGURES 1 and 2 inserted in the insulating support which latter is shown in section,
  • FIGURE 4 shows the stud of FIGURE 3, in section along its fixing plane
  • FIGURE 5 shows an assembly of a second embodiment of rotary selector switch employing fiat contact studs also in plan view from the side or face including the contact surfaces of the studs.
  • FIGURE 6 is a cross-section along the line VI-VI of FIGURE 5,
  • FIGURE 7 shows a perspective view of one of the contact studs of FIGURES 5 and 6 inserted in the insulating support which latter is shown in section, and
  • FIGURE 8 shows the stud of FIGURE 7, shown in section along its ixing plane.
  • FIGURES l, 2, 3 and 4 concerns the fixed part of a rotary selector switch comprising cylindrical contact members cut from a rod of a suitable metal, and being fixed in position by the rigid insulating support through or into which they extend.
  • each of these elements 1 and 2 there is provided a series of cylindrical recesses intended to receive a series of contact members or studs 4, 4, disposed in such a manner that when said elements 1 and 2 are assembled together, each recess of one element cooperates with a recess of the other, the two co-operating recesses being each partly in the prolongation of the other and being each partly masked by its adjacent element.
  • the section is offset in the fixing plane by pushing or twisting one part in relation to the other, (FIG. 4) which thus divides the member into two relatively eccentric parts.
  • FIGURES 5, 6, 7 and 8 also concerns the fixed part of a rotary selector switch, but in this case comprising fiat contact members cut from a strip of suitable metal and these parts are, as in FIGURES l to 4, fixed by the elements of the rigid insulating support through which they pass.
  • the rigid insulating support is constituted by two elements 11 and 12 joined together along two plane faces and assembled by three eyelets 13 or by any other suitable means.
  • each of these elements 11 and 12 is provided a series of slot-shaped recesses to receive a series of contact members 14, 14 disposed in such a manner that, when said elements 11 and 12 are assembled together, each slot of one element co-operates with a Y alcanza slot of the other, the two cci-operating slots crossing each other in their geometrical centre in such a manner that the ends of each are masked by the adjacent element Jill or T12, similar to the arrangement of FGURES l1 to 4.
  • this embodiment also, in that parrot the contact member M1, i4 which Vpasses through the two elementsV 11 and 12, the thickness of the section is cnt into from cach extremity, preferably for the samerlength, in order to partially separate the member into two parts whose planes are then caused to cross each other by imparting a twist to the remaining common section.
  • each Contact member is prevented on all sides from'displacement and is perfectly fixed in relation to the insulating support without causing any stress in the materials.
  • An electrical circuit contact assembly comprising a rigid insulating support constituted by two iiat plate-like apertured elements, said elements being secured together face to face with the apertures in the respective elements paired but having a partiai displacement from precise superposition, and each said aperture containing a contact mem er, said Contact member fitting into and filling said aperture, whereby the one contact member of each pair is prevented from intruding into the space of its pair contact member by said partial displacement, andthe assembly is thus kept substantiaily tree of mechanical strain upon said. supports.
  • each of said apertures being of cyiindrical shape.
  • a member as claimed in ciaim l in which the contact members have a fiat shape and comprise two parts which are staggered relative to each other, each of said apertures being rectangular.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Contacts (AREA)
US8779A 1959-02-19 1960-02-15 Electrical contact assembly with offset contact structure Expired - Lifetime US3196222A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR787163A FR1447903A (fr) 1959-02-19 1959-02-19 Perfectionnement intéressant l'assemblage des éléments conducteurs et isolants destinés aux applications électriques et électroniques et produits industriels nouveaux résultant de son adoption

Publications (1)

Publication Number Publication Date
US3196222A true US3196222A (en) 1965-07-20

Family

ID=8711469

Family Applications (1)

Application Number Title Priority Date Filing Date
US8779A Expired - Lifetime US3196222A (en) 1959-02-19 1960-02-15 Electrical contact assembly with offset contact structure

Country Status (5)

Country Link
US (1) US3196222A (fr)
CH (1) CH366582A (fr)
DE (1) DE1153814B (fr)
FR (1) FR1447903A (fr)
GB (1) GB913739A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3346707A (en) * 1965-12-31 1967-10-10 Swf Spezialfabrik Fur Authozub Multi-position electrical switch with improved guide rail and movable contact structure
US5481939A (en) * 1993-12-28 1996-01-09 Litton Systems, Inc. Cable strain relief device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US591126A (en) * 1897-10-05 Plug-switch
US2558851A (en) * 1948-06-24 1951-07-03 Briggs & Stratton Corp Fastening means for switch terminals
US2723384A (en) * 1951-05-10 1955-11-08 Gen Electric Electron tube socket
US2810795A (en) * 1957-02-07 1957-10-22 Patent Man Inc Printed circuit switch
US2969520A (en) * 1957-09-19 1961-01-24 Aerojet General Co Strain relief for cable connectors
US2982883A (en) * 1957-08-23 1961-05-02 Hughes Aircraft Co Electrical component locking arrangement

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2850712A (en) * 1956-02-02 1958-09-02 New York Trust Company Means for connecting electrodes to conductors

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US591126A (en) * 1897-10-05 Plug-switch
US2558851A (en) * 1948-06-24 1951-07-03 Briggs & Stratton Corp Fastening means for switch terminals
US2723384A (en) * 1951-05-10 1955-11-08 Gen Electric Electron tube socket
US2810795A (en) * 1957-02-07 1957-10-22 Patent Man Inc Printed circuit switch
US2982883A (en) * 1957-08-23 1961-05-02 Hughes Aircraft Co Electrical component locking arrangement
US2969520A (en) * 1957-09-19 1961-01-24 Aerojet General Co Strain relief for cable connectors

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3346707A (en) * 1965-12-31 1967-10-10 Swf Spezialfabrik Fur Authozub Multi-position electrical switch with improved guide rail and movable contact structure
US5481939A (en) * 1993-12-28 1996-01-09 Litton Systems, Inc. Cable strain relief device

Also Published As

Publication number Publication date
GB913739A (en) 1962-12-28
CH366582A (fr) 1963-01-15
FR1447903A (fr) 1966-08-05
DE1153814B (de) 1963-09-05

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