EP0498161B1 - Flexibler Tastschalter - Google Patents

Flexibler Tastschalter Download PDF

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Publication number
EP0498161B1
EP0498161B1 EP19920100369 EP92100369A EP0498161B1 EP 0498161 B1 EP0498161 B1 EP 0498161B1 EP 19920100369 EP19920100369 EP 19920100369 EP 92100369 A EP92100369 A EP 92100369A EP 0498161 B1 EP0498161 B1 EP 0498161B1
Authority
EP
European Patent Office
Prior art keywords
insulating material
layer
actuating member
switching contact
button 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
EP19920100369
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0498161A1 (de
Inventor
Klaus Wolkewitz
Siegfried Vogt
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.)
Blaupunkt Werke GmbH
Original Assignee
Blaupunkt Werke 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 Blaupunkt Werke GmbH filed Critical Blaupunkt Werke GmbH
Publication of EP0498161A1 publication Critical patent/EP0498161A1/de
Application granted granted Critical
Publication of EP0498161B1 publication Critical patent/EP0498161B1/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
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2215/00—Tactile feedback
    • H01H2215/004—Collapsible dome or bubble
    • H01H2215/006—Only mechanical function
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2215/00—Tactile feedback
    • H01H2215/004—Collapsible dome or bubble
    • H01H2215/02—Reversed domes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2227/00—Dimensions; Characteristics
    • H01H2227/036—Minimise height

Definitions

  • the invention relates to a flexible push button switch according to the preamble of claim 1.
  • a flexible push button switch in which the keypad essentially consists of five flexible layers glued together, a cover layer, a distribution layer, an upper contact carrier layer, a spacer layer and a lower contact carrier layer.
  • the finger When pressed, the finger is pressed on the center of a button area marked on the cover layer.
  • the force exerted by the fingertip is transferred to the edge of an associated opening in the distribution layer. From this edge, the force has a direct effect on the rectangular contact ring and ensures contact between the contact surfaces of the contact carrier layers.
  • the invention has for its object to provide a flexible push button switch, in which the operation is carried out via a button mounted in a cover plate.
  • the advantages achieved by the invention are, in particular, that the actuating element rules out an undesirable play in the height of the control button and, because of the snap action achieved, enables reliable contact-making.
  • a lower insulating material layer 2 is arranged on a base plate 1 and is provided on its upper side with conductor tracks which have a switching contact surface 3 in the form of a ring.
  • a spacer layer 4 made of insulating material is arranged on the lower insulating material layer 2 and has a circular window opening F, the diameter of which is larger than the outer diameter of the switching contact surface 3.
  • the conductor tracks provided on the underside of the upper insulating material layer 5 have a further switching contact surface 6 in the form of a ring, which is aligned with the switching contact surface 3 of the lower insulating material layer 2.
  • the upper insulating layer 5 is provided with a circular recess 7, the Diameter corresponds to the inner diameter of the switching contact surface 6 in the form of a ring.
  • An actuator 8 made in one piece from a flexible plastic consists of a cylindrical block-shaped core 9, to which a hollow cylindrical circular ring part 11 is formed by means of funnel-shaped walls 10, the lower part of which surrounds the upper part of the core 9 at a predetermined distance .
  • a cap-shaped control button 12 is fastened, which is mounted in a bore 13 of a cover plate 14 and rests with an annular shape jump 15 on the underside of the cover plate 14.
  • the block-shaped core 9 is supported with its lower end face 16 on the lower insulating layer 2.
  • the actuating member 8 is designed and arranged in such a way that the lower end face of the ring part 11 has a predetermined distance A from the upper insulating material layer 5, which can be overcome as a switching path x when a button is pressed, the snap-action walls according to FIG. 2 resulting from the funnel-shaped walls 10, in which the lower end face 17 of the ring part 8 brings the switching contact surfaces 3, 6 into contact.
  • the key switch is not limited to a single key. Several key arrangements can of course be assigned to the insulating films.

Landscapes

  • Push-Button Switches (AREA)
EP19920100369 1991-02-02 1992-01-11 Flexibler Tastschalter Expired - Lifetime EP0498161B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4103150 1991-02-02
DE19914103150 DE4103150C1 (enrdf_load_stackoverflow) 1991-02-02 1991-02-02

Publications (2)

Publication Number Publication Date
EP0498161A1 EP0498161A1 (de) 1992-08-12
EP0498161B1 true EP0498161B1 (de) 1994-10-19

Family

ID=6424241

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920100369 Expired - Lifetime EP0498161B1 (de) 1991-02-02 1992-01-11 Flexibler Tastschalter

Country Status (4)

Country Link
EP (1) EP0498161B1 (enrdf_load_stackoverflow)
JP (1) JPH04303528A (enrdf_load_stackoverflow)
DE (1) DE4103150C1 (enrdf_load_stackoverflow)
ES (1) ES2065073T3 (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4313870A1 (de) * 1993-04-28 1994-11-03 Becker Gmbh Tastschalter
CN111477487B (zh) * 2019-06-18 2023-07-14 光宝电子(广州)有限公司 输入装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3721778A (en) * 1971-06-21 1973-03-20 Chomerics Inc Keyboard switch assembly with improved operator and contact structure
DE7606008U1 (de) * 1976-02-28 1976-08-26 Preh, Elektrofeinmechanische Werke Jakob Preh Nachf., 8740 Bad Neustadt Drucktastenschalter
US4158115A (en) * 1978-06-26 1979-06-12 W. H. Brady Co. Internally connecting flexible switch
US4245138A (en) * 1978-11-17 1981-01-13 Rogers Corporation Tactile element and keyboard including the tactile element
GB2054268B (en) * 1979-07-19 1984-01-18 Standard Telephones Cables Ltd Double-domed conductive disc
AU554437B2 (en) * 1983-02-16 1986-08-21 Ishida Koki Seisakusho K.K. Double integrating type a/d converter
DE8409257U1 (de) * 1984-03-26 1984-07-26 Ing. Gerhard Dekorsy GmbH, 7760 Radolfzell Vorrichtung mit wenigstens einer Taste

Also Published As

Publication number Publication date
DE4103150C1 (enrdf_load_stackoverflow) 1992-04-16
EP0498161A1 (de) 1992-08-12
ES2065073T3 (es) 1995-02-01
JPH04303528A (ja) 1992-10-27

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