EP0510451B1 - Druckknopfbetätigter Schalter - Google Patents

Druckknopfbetätigter Schalter Download PDF

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Publication number
EP0510451B1
EP0510451B1 EP92106150A EP92106150A EP0510451B1 EP 0510451 B1 EP0510451 B1 EP 0510451B1 EP 92106150 A EP92106150 A EP 92106150A EP 92106150 A EP92106150 A EP 92106150A EP 0510451 B1 EP0510451 B1 EP 0510451B1
Authority
EP
European Patent Office
Prior art keywords
contacts
contact carrier
contact carriers
switch according
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
EP92106150A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0510451A2 (de
EP0510451A3 (en
Inventor
Klaus Runge
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.)
Bodenseewerk Geratetechnik GmbH
Original Assignee
Bodenseewerk Geratetechnik GmbH
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 Bodenseewerk Geratetechnik GmbH filed Critical Bodenseewerk Geratetechnik GmbH
Publication of EP0510451A2 publication Critical patent/EP0510451A2/de
Publication of EP0510451A3 publication Critical patent/EP0510451A3/de
Application granted granted Critical
Publication of EP0510451B1 publication Critical patent/EP0510451B1/de
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
    • H01H13/10—Bases; Stationary contacts mounted thereon
    • 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
    • H01H13/12—Movable parts; Contacts mounted thereon
    • 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
    • H01H13/48—Snap-action arrangements depending upon deformation of elastic members using buckling of disc springs

Definitions

  • a large number of push-button operated switches are known in which a movable contact carrier can be moved against a fixed contact carrier in order to bring the contacts arranged on the contact carriers into conductive contact with one another.
  • the movable contact carrier can be supported in a simple manner against one or more return springs, but snap arrangements can also be provided in which during a single opening or closing operation, the energy for the switching is first stored and then released in order to cause the movement of the movable contact carrier or to support it.
  • These snap arrangements can be, for example, compression springs with rockers, leaf springs with a snap effect or disc springs with a snap effect.
  • a push button switch in which a movable contact plate, which is connected to a plunger via an elastic cushion, is movable against two fixed contacts. These parts are arranged in a housing. To close the contact, the plunger is pressed down by a button that spans the housing.
  • the invention has for its object to design push button operated switches of the type defined in such a way that the time-synchronous closing or opening of all contacts with great reliability even then takes place when the push buttons or push buttons that are used to operate the switches are operated without great care, for example eccentrically.
  • Embodiments of the invention are the subject of the dependent claims.
  • the reference numeral 1 denotes a switch base and with 2 a switch cap, which can be pushed onto the switch base and is connected to the switch base in the pushed-on position by snap connections, which are not shown in the drawing.
  • 3 with a push button serving to operate the switch is designated.
  • the push button 3 is displaceable in the housing formed from the switch base 1 and the switch cap 2 over a limited path length.
  • a number of light-emitting diodes 4 and 5 are arranged as signal transmitters, which are covered by a translucent or transparent cover plate 6, this cover plate 6 also closing off the interior of the push button 3.
  • the LEDs 4 and 5 can serve to indicate the meaning of the switch, give instructions for its operation or indicate switching states that have been reached.
  • the switch base 1 there is a guide bore 7 around which four circular contacts 9 to 12 are arranged concentrically to the axis thereof on a contact carrier 8.
  • the contact carrier 8 can form a unit with the switch base 1 or it can be placed on the switch base 1, with aids not shown in the drawing for centering the bore guide 7.
  • the Annular contacts 9 to 12 are arranged on the preferably flat upper surface of the contact carrier 8 in a known manner, for example in the manner of a printed circuit. They are connected to contact tongues by means of conductors which are not visible in the drawing and which are arranged inside the switch base 1, of which only two, namely 13 and 14, are clearly visible in the drawing.
  • compression springs are arranged in the switch base 1 on two opposite sides, of which only one, namely 15, can be seen in the drawing.
  • the pushbutton 3 is supported against these compression springs when the switch is assembled, so that the compression springs serve as return springs for the pushbutton.
  • 1 beryllium springs 16, 16A and 17, 17A are arranged on the switch base, which are connected to contact tongues 18, 18A and 19, 19A and which are used for supplying current to the LEDs 4, 5 arranged in the pushbutton 3. It may be appropriate to arrange a larger number of beryllium springs than shown in the drawing.
  • a movable contact carrier is designated, which is circular or annular and is located on a guide pin 21.
  • the guide pin 21 is displaceable in the guide bore 7, so that the movable contact carrier 20 can be brought to bear against the fixed contact carrier 8.
  • the guide pin 21 is supported against the push button 3 or connected to it, so that the guide pin 21 can be moved together with the movable contact carrier 20 by the push button 3 in the longitudinal direction of the guide pin 21.
  • a protective cap 22 serves to protect the contacts located on the contact carriers 8 and 20 against external influences.
  • the switch base is designated by 1.
  • the annular contacts 9 to 12 are located on the fixed contact carrier 8 arranged thereon. Further annular contacts 24 and 25 are arranged on the underside of the movable contact carrier 20 with the inclusion of an elastic intermediate layer 23.
  • the guide pin 21 moves downward, the movable contact carrier 20 follows this movement until the contacts 24, 25 arranged thereon come into conductive contact with the contacts 9 to 12 on the fixed contact carrier 8.
  • the contacts 9 and 10 or 11 and 12 are connected to one another. Even if the movable contact carrier 20 and the fixed contact carrier 8 were not moved absolutely parallel to one another, reliable contacting still takes place due to the circular design of the contacts.
  • a disc spring 26 serving as a snap arrangement is arranged in the switch base 1 and is held by projections 27.
  • the disc spring 26 is supported against the guide pin 21 or it is connected to the guide pin 21 in a pressure and tensile manner at 28.
  • two contacts are not arranged on the movable contact carrier 20, as in FIG. 3, but there are four concentric annular contacts which form the Contacts 9 to 12 correspond to the fixed contact carrier 8.
  • brackets 29 and 30 serve to connect two non-adjacent contacts in the movable contact carrier 20 to each other. When this switch is closed, the contacts 9 and 11 or 10 and 12 of the fixed contact carrier 8 are connected to one another.
  • the movable contact carrier 20 is provided with contacts on both sides, with the interposition of elastic intermediate layers 32.

Landscapes

  • Push-Button Switches (AREA)
EP92106150A 1991-04-23 1992-04-09 Druckknopfbetätigter Schalter Expired - Lifetime EP0510451B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4113180 1991-04-23
DE4113180A DE4113180C1 (it) 1991-04-23 1991-04-23

Publications (3)

Publication Number Publication Date
EP0510451A2 EP0510451A2 (de) 1992-10-28
EP0510451A3 EP0510451A3 (en) 1993-01-07
EP0510451B1 true EP0510451B1 (de) 1995-07-05

Family

ID=6430149

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92106150A Expired - Lifetime EP0510451B1 (de) 1991-04-23 1992-04-09 Druckknopfbetätigter Schalter

Country Status (4)

Country Link
US (1) US5552571A (it)
EP (1) EP0510451B1 (it)
DE (2) DE4113180C1 (it)
ES (1) ES2077277T3 (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10061217C2 (de) * 2000-12-08 2003-04-03 Hahn Schickard Ges Schaltelement und Verfahren zur Herstellung desselben
DE50306717D1 (de) * 2002-04-15 2007-04-19 Siemens Ag Elektrische Kontaktierungseinrichtung und zugehörige Tastatur
TWI271763B (en) * 2005-11-11 2007-01-21 Benq Corp Slender keyswitch structure
TWI502432B (zh) * 2013-07-05 2015-10-01 Acer Inc 觸控板模組與可攜式電子裝置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3225168A (en) * 1951-01-28 1965-12-21 Metamora Electronics Corp Miniature electric switch
JPS5535807B2 (it) * 1972-03-09 1980-09-17
US3940578A (en) * 1973-04-09 1976-02-24 Alphameric Keyboards Limited Keyboard structure having panel mounted key actuators with electrical component operating element
US3876845A (en) * 1973-11-16 1975-04-08 Neo Dyn Inc Pressure and temperature actuated switches
US4324472A (en) * 1978-06-14 1982-04-13 Olympus Optical Company Ltd. Switch for camera
DE3025024C2 (de) * 1980-07-02 1982-04-29 Schoeller & Co Elektrotechnische Fabrik Gmbh & Co, 6000 Frankfurt Folienschalter
DE3139284A1 (de) * 1981-10-02 1983-04-21 Brown, Boveri & Cie Ag, 6800 Mannheim Elektrischer installationsschalter
DE3212937A1 (de) * 1982-04-07 1983-10-13 Franz Neumann, Elektro-Apparatebau, 8070 Ingolstadt Druckknopfschalter
JPS60136022U (ja) * 1984-02-20 1985-09-10 アルプス電気株式会社 押釦スイツチ
DE3508418A1 (de) 1985-03-09 1986-09-11 Robert Bosch Gmbh, 7000 Stuttgart Einrichtung zum regeln der fahrgeschwindigkeit eines kraftfahrzeugs
FR2629943B1 (fr) * 1988-04-06 1994-04-15 Itt Composants Instruments Interrupteur electrique a effet tactile
US4885443A (en) * 1988-11-29 1989-12-05 Tokheim Corporation Sealed backlit switch assembly

Also Published As

Publication number Publication date
DE59202781D1 (de) 1995-08-10
EP0510451A2 (de) 1992-10-28
DE4113180C1 (it) 1992-11-05
US5552571A (en) 1996-09-03
EP0510451A3 (en) 1993-01-07
ES2077277T3 (es) 1995-11-16

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