US3133177A - Electrical contact means in wire springs - Google Patents

Electrical contact means in wire springs Download PDF

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Publication number
US3133177A
US3133177A US84909A US8490961A US3133177A US 3133177 A US3133177 A US 3133177A US 84909 A US84909 A US 84909A US 8490961 A US8490961 A US 8490961A US 3133177 A US3133177 A US 3133177A
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US
United States
Prior art keywords
contact
wire
sleeve
shaped
wires
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
US84909A
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English (en)
Inventor
Alexandersson Harald Valdemar
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Application granted granted Critical
Publication of US3133177A publication Critical patent/US3133177A/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
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/24—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting
    • H01H1/245—Spring wire contacts

Definitions

  • the purpose of this invention is to obtain in a simple way reliable V-contacts on wire springs. This is achieved in such a way that the one contact wire of a contact spring pair is provided with a tube consisting of contact material which tube is fixed on the contact wire in such a way that one portion of the tube is placed outside the free end of the wire and that this portion along the side facing the other contact wire has been given in cross section a V- shape suited for contact giving.
  • FIGS. 1 and 2 show a perspective view and an end view of a known design of a V-contact means.
  • FIGS. 3 and 4 show in corresponding views the contact means proposed according to the invention.
  • FIG. 1 At the perspective view, shown in FIG. 1, of a pair of wire contact springs fastened at their back ends in the usual manner, the V-contact is formed by the lower contact wire. This is in its fore end, as also appears from FIG. 2, in which a front view of the fore ends of the springs is shown, bent perpendicularly to the wire direction, and shaped as a little hook, in which the upper spring can make contact when the lower spring is brought upwards. The upper spring can thereby be bent a little downwards against the V-contact as is shownin FIG. 1.
  • the upper contact spring 1 is in front provided with a cylindrical tube 2 of contact material.
  • the lower spring 3 is a little shorter than the spring 1.
  • a piece of tube 4 is fastened on the fore end of the spring, for example by pressure or by welding. Part of the tube 4 is thereby placed outside the free end of the wire.
  • the tube is so long that the lower contact spring 3 and the projecting portion of the tube 4 together are equally long as the upper contact spring.
  • the projecting portion of the tube 4 is, for example by stamping, so shaped that the upper side adjoining the upper contact wire forms a piece 5 that is V-shaped in cross section, which piece serves as contact point.
  • the two contact springs By providing the two contact springs with tube-pieces of contact material it is achieved that a sufliciently large quantity of such material is provided for the use intended for the springs.
  • the geometrical dimensions of the springs will furthermore be such that the contact means in its entirety, from the technical, manufacturing point of view, is easy to make.
  • a contact device for switching means comprising a first and a second springy wire, support means supporting said Wires in positions in reference to each other in which said wires are movable into engagement, and a sleeve made of contact material fitted upon an end of one of said wires lengthwise protruding therefrom, said protruding sleeve portion having a V-shaped configuration, the open side of the V-shaped portion facing the other wire for receiving said other wire in contact engagement at both inner surfaces of the V-shaped portion.
  • a contact device wherein a cylindrical sleeve made of contact material is fitted upon one end of said other Wire, said sleeve being engageable with the inner surfaces of said V-shaped sleeve portion.
  • a contact device whereinsaid V-shaped sleeve portion is bent toward said other contact wire in reference to the axis of the wire on which said sleeve having the V-shaped portion is fitted.
  • An electric switching device comprising a first and a second springy contact wire, mounting means supporting said wires parallel to each other in spaced-apart relationship, switch actuating means engaging one of said wires to fiex one end thereof into contact engagement with the adjacent end of the other wire, a sleeve made of contact material fitted upon an end of one of said wires protruding from said end, said protruding sleeve portion having a V-shaped configuration, and a cylindrical sleeve made of contact material fitted upon the adjacent end of the other wire, the open side of the V-shaped sleeve portion facing the sleeve on the other wire for receiving said latter sleeve in contact engagement at both inner surfaces at said V shape.
  • a switching device according to claim 4 wherein said V-shaped portion is bent toward said other sleeve in reference to the axis of the wire mounting said sleeve-shaped portion.
  • a switching device wherein the wire mounting the sleeve-shaped portion is shorter than the other wire, said protruding V-shaped sleeve portion complementing the shorter wire substantially to the length of the other wire.

Landscapes

  • Push-Button Switches (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
US84909A 1960-02-10 1961-01-25 Electrical contact means in wire springs Expired - Lifetime US3133177A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE130460 1960-02-10

Publications (1)

Publication Number Publication Date
US3133177A true US3133177A (en) 1964-05-12

Family

ID=20257965

Family Applications (1)

Application Number Title Priority Date Filing Date
US84909A Expired - Lifetime US3133177A (en) 1960-02-10 1961-01-25 Electrical contact means in wire springs

Country Status (6)

Country Link
US (1) US3133177A (nl)
BE (1) BE599861A (nl)
DE (1) DE1145725B (nl)
FR (1) FR1280256A (nl)
GB (1) GB902276A (nl)
NL (1) NL260658A (nl)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3924089A (en) * 1974-08-28 1975-12-02 Stackpole Component Co Keyboard switch
US4090053A (en) * 1974-10-30 1978-05-16 Anton Schaumann Spring contact switch assembly
US4144430A (en) * 1978-03-10 1979-03-13 Amp Incorporated Cantilever spring contact having integral support pin
CN102867664A (zh) * 2012-09-11 2013-01-09 叶春林 简单可靠的触通式开关及其构成
CN102867660A (zh) * 2011-07-06 2013-01-09 欧姆龙汽车电子株式会社 开关

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3145986A1 (de) * 1981-11-20 1983-06-01 AEG-Telefunken Nachrichtentechnik GmbH, 7150 Backnang Elektrischer schalter mit einmaliger kontaktbetaetigung
DE19714522C1 (de) * 1997-04-08 1998-05-07 Priesemuth W Schalter, sowie Drahtkontakt, insbesondere zur Verwendung für einen Schalter

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR592127A (fr) * 1924-12-29 1925-07-28 Perfectionnement aux interrupteurs électriques
US2525408A (en) * 1945-06-29 1950-10-10 Automatic Elect Lab Electrical contact for switching devices
US2590996A (en) * 1947-11-21 1952-04-01 Bell Telephone Labor Inc Relay
US2866046A (en) * 1956-03-23 1958-12-23 George J Pandapas Relay with self-cleaning contact elements
US2965739A (en) * 1956-05-05 1960-12-20 Ericsson Telefon Ab L M Contact spring set

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE962099C (de) * 1954-09-09 1957-04-18 Ericsson Telefon Ab L M Kontaktfeder-Anordnung bei elektromagnetischem Relais

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR592127A (fr) * 1924-12-29 1925-07-28 Perfectionnement aux interrupteurs électriques
US2525408A (en) * 1945-06-29 1950-10-10 Automatic Elect Lab Electrical contact for switching devices
US2590996A (en) * 1947-11-21 1952-04-01 Bell Telephone Labor Inc Relay
US2866046A (en) * 1956-03-23 1958-12-23 George J Pandapas Relay with self-cleaning contact elements
US2965739A (en) * 1956-05-05 1960-12-20 Ericsson Telefon Ab L M Contact spring set

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3924089A (en) * 1974-08-28 1975-12-02 Stackpole Component Co Keyboard switch
US4090053A (en) * 1974-10-30 1978-05-16 Anton Schaumann Spring contact switch assembly
US4144430A (en) * 1978-03-10 1979-03-13 Amp Incorporated Cantilever spring contact having integral support pin
CN102867660A (zh) * 2011-07-06 2013-01-09 欧姆龙汽车电子株式会社 开关
US20130008768A1 (en) * 2011-07-06 2013-01-10 Omron Automotive Electronics Co., Ltd. Switch
CN102867664A (zh) * 2012-09-11 2013-01-09 叶春林 简单可靠的触通式开关及其构成
CN102867664B (zh) * 2012-09-11 2015-08-12 叶春林 触通式开关

Also Published As

Publication number Publication date
DE1145725B (de) 1963-03-21
BE599861A (fr) 1961-05-29
FR1280256A (fr) 1961-12-29
GB902276A (en) 1962-08-01
NL260658A (nl)

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