EP1238402B1 - Boutons-poussoirs decouples - Google Patents

Boutons-poussoirs decouples Download PDF

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Publication number
EP1238402B1
EP1238402B1 EP00981318A EP00981318A EP1238402B1 EP 1238402 B1 EP1238402 B1 EP 1238402B1 EP 00981318 A EP00981318 A EP 00981318A EP 00981318 A EP00981318 A EP 00981318A EP 1238402 B1 EP1238402 B1 EP 1238402B1
Authority
EP
European Patent Office
Prior art keywords
arrangement according
pushbutton
connecting webs
pushbutton arrangement
pushbuttons
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.)
Revoked
Application number
EP00981318A
Other languages
German (de)
English (en)
Other versions
EP1238402A1 (fr
Inventor
Jürgen RIECKE
Jörg ESSINGER
Gil Jose Maria Saez
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.)
Bsh Bosch und Siemens Hausgeraete En Ticona G GmbH
Original Assignee
Ticona GmbH
BSH Bosch und Siemens Hausgeraete 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7930888&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1238402(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ticona GmbH, BSH Bosch und Siemens Hausgeraete GmbH filed Critical Ticona GmbH
Publication of EP1238402A1 publication Critical patent/EP1238402A1/fr
Application granted granted Critical
Publication of EP1238402B1 publication Critical patent/EP1238402B1/fr
Anticipated expiration legal-status Critical
Revoked 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
    • H01H2221/00—Actuators
    • H01H2221/036—Return force
    • H01H2221/044—Elastic part on actuator or casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/054—Actuators connected by flexible webs

Definitions

  • the invention relates to a one-piece push button arrangement with at least two neighboring pushbuttons, struts and connecting bars, which are largely ensures that when a pushbutton is operated, adjacent keys are only extremely move slightly with.
  • a female connector describes, for example, the German patent DE 3034585, the a profile strip made of clamps to hold the push buttons and curved, preferably V-shaped connecting webs at intervals of two clamps disclosed.
  • the push buttons are attached to the bracket and the Flexible connecting bars ensure that the push buttons are easy can be depressed.
  • the keys spring back after being depressed is also guaranteed by separate frog feathers.
  • buttons are on two flexible ones Shock struts arranged, which in turn are formed on rigid connecting webs.
  • a telephone keypad with multi-row control buttons integrated into a female connector is used in European Plastics News, No. 10, 1983, page 63.
  • This keypad will manufactured by molding part of the keys in a first injection molding step and in a second injection molding step the buttons are completed and the buttons are pressed connecting frame.
  • buttons For flexible operation of the buttons, these are via movable legs with the stiffer ones Part of the frame connected.
  • US 5270507 discloses a push button arrangement in which adjacent ones Pushbuttons are connected to each other via bars.
  • the webs are on theirs Pushbutton-assigning ends worked out as struts, so that the pushbuttons are movably supported over the resilient parts of the webs and the entire Pushbutton arrangement on the sections between the struts Can rest on a pad.
  • the entire push button arrangement is from one Made of rubber.
  • the thickness of the webs is essentially along their entire length constant.
  • a disadvantage of the push button arrangement already described is that the spring action of the struts is directly related to the strength of the connecting webs. When the spring action is increased, the coupling of the pushbuttons to one another is also always increased.
  • the object of the present invention is to eliminate the disadvantages of the prior art by simple design measures. This object is achieved by a pushbutton arrangement with at least two adjacent pushbuttons which are connected to one another by connecting webs, characterized in that each of the pushbuttons (2) has two spring struts (4) which are supported on a support surface.
  • the present arrangement of struts and connecting webs creates two independent functional elements which can be appropriately designed with regard to their actual task and function, without this having an adverse effect on the function between the two components. The functional reliability of the key arrangement is consequently considerably improved.
  • the restoring force that the struts exert on the push button can thus be effected independently of the connecting webs.
  • the connecting webs can thus be freely dimensioned in the push button arrangement according to the invention, since the spring action is independent of the thickness of the connecting webs and depends on the nature of the struts.
  • Another advantage is that the mechanical decoupling of adjacent push buttons is possible, so that when a push button is operated, adjacent buttons do not move and no unwanted contact or switching effect of an adjacent button is triggered.
  • the spring struts on each pushbutton are arranged laterally offset from one another; the pushbuttons preferably have a base on which the spring struts are provided.
  • the spring struts are preferably of flat profile and are supported with their free end on the support surface.
  • the free end of the spring struts preferably has a section which is offset parallel to the support surface and which is supported on the support surface.
  • the struts can also extend from the bottom of the push buttons (2) under the push button arrangement.
  • the connecting webs are flexible.
  • the connecting webs particularly advantageously have a taper, which is provided either on the upper side facing the pushbuttons, on the lower side or on the side surfaces of the connecting webs.
  • the taper is preferably provided in the middle of the connecting web between the push buttons.
  • the taper is particularly preferably designed as a film hinge, and the connecting webs are very particularly preferably in the form of tapered film hinges.
  • the push button arrangement according to the invention is particularly advantageously produced from a particularly rigid polyacetal polymer with a high restoring force.
  • the connecting webs can be tapered down to 0.2 mm without fear of breakage of the connecting webs if the buttons on the tapering parts are used continuously.
  • the use of an easily flowing polyacetal (Hostaform® C 13031, Ticona GmbH, Frankfurt) also enables the pushbutton unit to be manufactured in one injection molding step, despite the tapering which hinders the flow of the plastic.
  • Suitable polyacetal homopolymers and copolymers generally have a melt index (MVR) of at least 12.
  • Suitable copolymers have a comonomer content of generally less than 3.4% by weight, based on the monomer trioxane, preferably less than 2% by weight, in particular 1.4% by weight.
  • the connecting webs are flexible as a result executed that the connecting webs from an elastomer preparation (crosslinked or uncrosslinked), preferably a thermoplastic elastomer preparation, which has good adhesion to the material of the push buttons.
  • an elastomer preparation crosslinked or uncrosslinked
  • thermoplastic elastomer preparation which has good adhesion to the material of the push buttons.
  • Push buttons made of a polyacetal and the connecting bars made of a thermoplastic Elastomer preparation such as in WO 00/20204, US 5149589, US 5002625 or US 5472782, which is incorporated by reference.
  • Such Push button arrangement is preferably produced by two-component injection molding.
  • Figure 1 shows a section of a single-row push button arrangement 1 of Pushbuttons 2, which are connected to one another via connecting webs 3.
  • the Pushbuttons 2 are two struts 4, which are located from the bottom of the pushbuttons 3 extend under the push button arrangement 1.
  • the struts 4 serve as a support the push button arrangement 1 on a support surface, not shown, or a frame and to reset the pushbutton after pressing it down.
  • the connecting webs 3 have a taper in the middle. This taper is shown in the figure on the the pushbuttons facing the top of the connecting webs, but it can can also be carried out on the underside or from both sides.
  • the single row Pushbutton arrangement 1 can be combined with other rows of pushbuttons or a frame get connected.
  • FIG. 2 shows a section of a two-dimensional pushbutton arrangement 5 from Pushbuttons 6, which are connected to one another via connecting webs 7, the Pushbuttons 6 are movably supported via the spring struts 8.
  • the push button arrangement according to the invention can, as required, as a pair of buttons, group, row or two-dimensional key arrangement.
  • application finds such a push button arrangement, for example, in control panels of Household appliances, especially so-called white appliances such as washing machines, Refrigerators, tumble dryers, cookers etc., as keyboards for calculating machines, Typewriters, computers and telephones, in particular cell phones, notebooks etc., control panels for radio, music, video and TV sets, control panels for machines and machine tools or elevators, switch and control panels in vehicles etc.
  • the push button arrangement according to the invention is particularly there Can be used advantageously where control buttons are close together to save space in one Device or component must be housed and guaranteed at the same time must that no adjacent keys are moved when a key is pressed and thus possibly trigger a signal.

Landscapes

  • Push-Button Switches (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Telephone Function (AREA)
  • Casings For Electric Apparatus (AREA)
  • Electronic Switches (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Control Of Eletrric Generators (AREA)
  • Telephone Set Structure (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)

Claims (21)

  1. Dispositif à boutons-poussoirs pour un élément de construction tel qu'un panneau de commande d'appareils domestiques, machines, appareils radio ou téléviseurs ou similaires, comprenant au moins deux boutons-poussoirs contigus l'un à l'autre qui sont reliés de manière à former une unité par au moins une traverse de jonction, chacun des boutons-poussoirs possédant au moins deux jambes élastiques qui s'appuient sur une surface d'appui, caractérisé en ce que la - au moins une - traverse de jonction (3) présente un amincissement.
  2. Dispositif à boutons-poussoirs selon la revendication 1, caractérisé en ce que les jambes élastiques (4) sont disposées de manière à présenter un décalage latéral l'une par rapport à l'autre sur chaque bouton-poussoir (2).
  3. Dispositif à boutons-poussoirs selon la revendication 1 ou 2, caractérisé en ce que les jambes élastiques (4) sont exécutées de manière à avoir un profil plat et s'appuient, avec leur extrémité libre, sur la surface d'appui.
  4. Dispositif à boutons-poussoirs selon l'une des revendications 1 à 3, caractérisé en ce que les jambes élastiques (4) possèdent, au niveau de leur extrémité libre, un segment désaxé de manière à être parallèle à la surface d'appui et qui s'appuie sur cette dernière.
  5. Dispositif à boutons-poussoirs selon l'une des revendications 1 à 4, caractérisé en ce que les boutons-poussoirs possèdent une base sur laquelle sont prévues les jambes élastiques.
  6. Dispositif à boutons-poussoirs selon l'une des revendications 1 à 5, caractérisé en ce que les jambes élastiques (4) s'étendent de la base des boutons-poussoirs (2) sous le dispositif à boutons-poussoirs (1).
  7. Dispositif à boutons-poussoirs selon l'une des revendications 1 à 5, caractérisé en ce que les jambes élastiques (4) exercent une force de rappel sur le bouton-poussoir (2) lors de l'actionnement de ce dernier.
  8. Dispositif à boutons-poussoirs selon la revendication 7, caractérisé en ce que l'amincissement est prévu au milieu des traverses de jonction (3).
  9. Dispositif à boutons-poussoirs selon l'une des revendications 1 à 8, caractérisé en ce que les boutons-poussoirs (2) sont reliés les uns aux autres par le biais de traverses de jonction (3) planes dont l'épaisseur se rétrécit à chaque fois en direction du milieu.
  10. Dispositif à boutons-poussoirs selon l'une des revendications 8 à 9, caractérisé en ce que l'amincissement est prévu sur le côté supérieur des traverses de jonction (3) tourné vers les boutons-poussoirs (2).
  11. Dispositif à boutons-poussoirs selon l'une des revendications 8 à 9, caractérisé en ce que l'amincissement est prévu sur le côté inférieur des traverses de jonction (3) tourné vers les boutons-poussoirs (2).
  12. Dispositif à boutons-poussoirs selon l'une des revendications 8 à 9, caractérisé en ce que l'amincissement est prévu sur les deux faces latérales des traverses de jonction (3).
  13. Dispositif à boutons-poussoirs selon l'une des revendications 8 à 12, caractérisé en ce que l'amincissement au niveau des traverses de jonction (3) est exécuté en tant que charnière à film.
  14. Dispositif à boutons-poussoirs selon l'une des revendications 1 à 13, caractérisé en ce que les traverses de jonction (3) sont exécutées sous la forme de charnières à film s'amincissant.
  15. Dispositif à boutons-poussoirs selon l'une des revendications 1 à 14, caractérisé en ce que la longueur des traverses de jonction (3) est comprise entre 3 et 7 mm, la largeur des traverses de jonction (3) est comprise entre 0,5 et 2 mm et l'épaisseur des traverses de jonction (3) est comprise entre 0,5 et 1,5 mm au niveau de leurs extrémités et comprise entre 0,15 et 1 mm au niveau de leur milieu aminci, mais inférieure en tout cas à l'épaisseur au niveau de leurs extrémités.
  16. Dispositif à boutons-poussoirs selon la revendication 15, caractérisé en ce que la longueur des traverses de jonction (3) est comprise entre 5 et 7 mm, la largeur des traverses de jonction (3) est comprise entre 0,8 et 1,2 mm et l'épaisseur des traverses de jonction (3) est comprise entre 0,75 et 0,85 mm au niveau de leurs extrémités et entre 0,25 et 0,45 mm au niveau de leur milieu aminci.
  17. Dispositif à boutons-poussoirs selon l'une des revendications 1 à 15, caractérisé en ce que l'enfoncement d'un bouton-poussoir (2) de 1,25 mm entraíne un mouvement des boutons-poussoirs (2) contigus de moins de 0,63 mm, de préférence de moins de 0,5 mm et, notamment, de 0,35 mm au maximum de préférence.
  18. Dispositif à boutons-poussoirs selon l'une des revendications 1 à 16, caractérisé en ce que les jambes élastiques (4) se trouvent sur les boutons-poussoirs (2) pour s'étendre de la base des boutons-poussoirs (2) sous le dispositif à boutons-poussoirs.
  19. Dispositif à boutons-poussoirs selon l'une ou plusieurs des revendications 1 à 17, caractérisé en ce que le dispositif à boutons-poussoirs (1) est formé de polyacétal, de préférence d'un homopolymère ou d'un copolymère de polyoxyméthylène ayant un indice de fusion (MVR) d'au moins 12.
  20. Dispositif à boutons-poussoirs selon l'une ou plusieurs des revendications 1 à 17, caractérisé en ce que le dispositif à boutons-poussoirs (1) est formé d'un copolymère de polyoxyméthylène dont la teneur en comonomère est inférieure à 3,4% en poids.
  21. Dispositif à boutons-poussoirs selon l'une ou plusieurs des revendications 1 à 17, caractérisé en ce que les traverses de jonction (3) sont formées d'une préparation d'élastomère, de préférence d'une préparation d'élastomère thermoplastique.
EP00981318A 1999-11-30 2000-11-29 Boutons-poussoirs decouples Revoked EP1238402B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19957643A DE19957643A1 (de) 1999-11-30 1999-11-30 Entkoppelte Drucktasten
DE19957643 1999-11-30
PCT/EP2000/011939 WO2001041169A1 (fr) 1999-11-30 2000-11-29 Boutons-poussoirs decouples

Publications (2)

Publication Number Publication Date
EP1238402A1 EP1238402A1 (fr) 2002-09-11
EP1238402B1 true EP1238402B1 (fr) 2003-10-29

Family

ID=7930888

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00981318A Revoked EP1238402B1 (fr) 1999-11-30 2000-11-29 Boutons-poussoirs decouples

Country Status (13)

Country Link
US (1) US6982389B2 (fr)
EP (1) EP1238402B1 (fr)
JP (1) JP2003515904A (fr)
CN (1) CN1218338C (fr)
AT (1) ATE253254T1 (fr)
AU (1) AU1860701A (fr)
BR (1) BR0015972A (fr)
DE (2) DE19957643A1 (fr)
NZ (1) NZ519149A (fr)
PL (1) PL355681A1 (fr)
TR (1) TR200201321T2 (fr)
WO (1) WO2001041169A1 (fr)
YU (1) YU36402A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7754248B2 (en) 2004-10-26 2010-07-13 Johnson & Johnson Consumer Companies, Inc. Ingestible compositions containing extracts
CN100337474C (zh) * 2005-06-25 2007-09-12 海信集团有限公司 机顶盒
EP2082088B1 (fr) 2006-08-31 2016-11-09 LG Electronics Inc. Ensemble panneau de commande pour appareil de blanchisserie, et appareil de blanchisserie pourvu de ce panneau
US20140151208A1 (en) * 2012-12-03 2014-06-05 Zippy Technology Corp. Simple assembly thin keyboard

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3932722A (en) * 1974-04-16 1976-01-13 Nippo Communication Industrial Co., Ltd. Push button body for a push-button switch providing snap-action of the switch
US4066860A (en) * 1974-09-26 1978-01-03 Sharp Kabushiki Kaisha Pushbutton switch key arrangement for keyboards having indicia
US4315114A (en) * 1980-03-24 1982-02-09 International Telephone And Telegraph Corporation Keyboard switch assembly
DE3034585C2 (de) 1980-09-13 1982-11-04 Philips Patentverwaltung Gmbh, 2000 Hamburg Drucktastenanordnung in einem Gerät der elektrischen Nachrichtentechnik
GB2084802B (en) * 1980-09-30 1984-03-28 Standard Telephones Cables Ltd Keypad buttons
US4490587A (en) * 1983-04-07 1984-12-25 Microdot Inc. Switch assembly
EP0123184B1 (fr) * 1983-04-20 1990-03-14 Bebié+Co. Disposition de clavier
US4604509A (en) * 1985-02-01 1986-08-05 Honeywell Inc. Elastomeric push button return element for providing enhanced tactile feedback
DE8510147U1 (fr) * 1985-04-04 1987-05-07 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De
US5270507A (en) 1989-01-19 1993-12-14 Shin-Etsu Polymer Co., Ltd. Push button switch and method for manufacturing same
US5481074A (en) * 1992-08-18 1996-01-02 Key Tronic Corporation Computer keyboard with cantilever switch and actuator design
DE9405433U1 (de) * 1993-04-01 1994-08-04 Uher Ag Einrichtung zur Betätigung eines in einem elektrischen oder elektronischen Gerät befindlichen Schalters
US5389757A (en) * 1993-06-15 1995-02-14 Digital Equipment Corporation Elastomeric key switch actuator
JPH0883530A (ja) * 1994-09-13 1996-03-26 Fujitsu Ltd キートップ
JP3306311B2 (ja) * 1996-08-29 2002-07-24 アルプス電気株式会社 押圧操作型スイッチ
US6187514B1 (en) * 1997-10-14 2001-02-13 Shin-Etsu Polymer Co., Ltd. Method for forming pad character in push button switch and method for manufacturing cover member for push button switch

Also Published As

Publication number Publication date
EP1238402A1 (fr) 2002-09-11
DE50004279D1 (de) 2003-12-04
WO2001041169A1 (fr) 2001-06-07
PL355681A1 (en) 2004-05-04
TR200201321T2 (tr) 2002-11-21
US6982389B2 (en) 2006-01-03
CN1402877A (zh) 2003-03-12
JP2003515904A (ja) 2003-05-07
AU1860701A (en) 2001-06-12
NZ519149A (en) 2003-03-28
CN1218338C (zh) 2005-09-07
ATE253254T1 (de) 2003-11-15
YU36402A (sh) 2004-05-12
DE19957643A1 (de) 2001-05-31
BR0015972A (pt) 2002-07-16
US20030010610A1 (en) 2003-01-16

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