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EP0011320B1 - Boîter avec un interrupteur à bouton-poussoir pour appareils électriques - Google Patents

Boîter avec un interrupteur à bouton-poussoir pour appareils électriques Download PDF

Info

Publication number
EP0011320B1
EP0011320B1 EP79200572A EP79200572A EP0011320B1 EP 0011320 B1 EP0011320 B1 EP 0011320B1 EP 79200572 A EP79200572 A EP 79200572A EP 79200572 A EP79200572 A EP 79200572A EP 0011320 B1 EP0011320 B1 EP 0011320B1
Authority
EP
European Patent Office
Prior art keywords
switch
plate
foil
vicinity
perforations
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
Application number
EP79200572A
Other languages
German (de)
English (en)
Other versions
EP0011320A3 (en
EP0011320A2 (fr
Inventor
Roland Ullmann
Klaus Zimmermann
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.)
Braun GmbH
Original Assignee
Braun 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 Braun GmbH filed Critical Braun GmbH
Priority to AT79200572T priority Critical patent/ATE7827T1/de
Publication of EP0011320A2 publication Critical patent/EP0011320A2/fr
Publication of EP0011320A3 publication Critical patent/EP0011320A3/de
Application granted granted Critical
Publication of EP0011320B1 publication Critical patent/EP0011320B1/fr
Expired 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
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H01H13/14—Operating parts, e.g. push-button

Definitions

  • the invention relates to a housing with a pressure switch for electrical devices, in particular for hand-held and guided devices such as electric erasers, electric toothbrushes or the like.
  • switch handle In order to be able to operate switches as simply and conveniently as possible, it is desirable to design the switch handle as large as possible. That is why light switches often have a switch handle that covers the entire surface of the light switch. These light switches are mostly designed as toggle switches, since they do not have the problem of tilting the switch handle. The problem of tilting the switch handle occurs particularly when you want to provide the smallest possible housing opening in electrical devices for constructional reasons and the switch handle is nevertheless designed to be so large that it extends far beyond the housing opening on all sides.
  • EP-B1-0 001 302 already provides a housing design according to the state of the art according to Art. 54 (3) EPC in which a film is provided on the inside of a perforated housing wall in the area of an electrical switch, which is partially glued to the housing wall, wherein the film is provided on one side with protruding nub-like or tongue-like projections which extend through perforations and are displaceable in the area of the switch arranged inside the housing in order to allow the film to bulge out and thus to actuate the switch.
  • the invention has for its object to form the knob or tongue-like projections in the area of the switch handle of different lengths in a housing of this type without this being immediately visible from the outside of the housing.
  • the housing should be designed in the area of the switch handle so that it protrudes as little as possible from the outer surface of the housing so that the switch is not inadvertently actuated when the device is resting on a base.
  • the housing wall has an inward dent.
  • the pressure switch area can be easily recognized even if the housing of the electrical device also has knobs for reasons of optics or good haptics.
  • this embodiment makes it possible to provide relatively long knobs in the area of the pressure switch, so that a large displacement path is available for the actuation of the switch member without the knobs protruding beyond the outer contour of the device.
  • the switch handle presses the fingers against a large number of knobs, a comparatively large outer surface of the housing being available for actuating the pressure switch, while the required perforations as the sum of the surfaces of the individual knobs are relatively small overall. Due to the large number of knobs touched by the finger at the same time, a particularly soft switch actuation is possible, the contact area between the actuating finger and knobs being relatively small, so that sweating of the finger when the switch is actuated is counteracted.
  • the grid module of the knobs of a switch handle can be designed corresponding to the grid module of the rest of the housing, so that the switch handle adapts well to the housing.
  • the switch handle Due to the elasticity of the film or plate of the switch handle, it can move back into its old position without additional springs when the knobs are released. In addition, due to their elasticity, the knobs can be sealingly guided through the perforations of the housing wall, so that the switch handle is completely tight and there is no risk of dirt or moisture penetrating into the electrical device.
  • the switch handle can be actuated with particularly little force if the film or plate has a smaller wall thickness in the region of the dent which occurs when the switch is actuated than in the rest of the region.
  • the invention permits numerous embodiments. One of them is shown schematically in the drawing and is described below.
  • the housing shown has a housing wall 1 made of a rigid material.
  • This housing wall 1 has a multiplicity of perforations 2 through which the knobs 3 of a film or plate 4 protrude.
  • This film or plate 4 consists of an elastic plastic. It is glued to the housing wall 1 in such a way that its outer region is firmly and tightly connected to the housing wall 1, but its central region can be lifted off the housing wall 1 by depressing the knobs 3. In order to promote this lifting or denting, the material thickness of the film or plate 4 can be reduced in the area of the switch 5, 6.
  • the end faces of the knobs 3, as shown in the figure, can be rounded, so that they are supported particularly comfortably against the finger when the switch is actuated.
  • the film or plate 4 also rests against the housing wall 1 in the central area due to its elasticity.
  • the housing wall 1 has a dent 8, in which the knobs 3 are particularly long and protrude from the housing wall 1 up to the level of the other knobs 3 located outside the dent 8. A large actuation stroke is achieved by this measure without the knobs 3 having to protrude beyond the outer contour of the housing in the switch area.
  • a switch 6 with a switching element 5 which can be displaced by depressing the knobs 3 and thus by bulging the film or plate 4, so that a switch can be actuated.

Landscapes

  • Push-Button Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Switches With Compound Operations (AREA)
  • Brushes (AREA)

Claims (3)

1. Boitier avec interrupteur à bouton-poussoir pour appareils électriques, en particulier pour appareils tenus et guidés à la main, comme un rasoir électrique, une brosse à dents et autres semblables, comportant une paroi de boitier (1), qui présente des perforations (2) et, contre sa face interne, au moins dans la zone d'un interrupteur électrique (5, 6), une feuille ou plaque (4) en plastique ou autre matériau type caoutchouc et partiellement solidarisé à ce matériau, par exemple collé, cette feuille ou plaque (4) étant munie d'un côté d'un certain nombre de saillies (3) en forme de boutons ou de pointes qui dépassent au-delà d'une surface de la feuille ou de la plaque (4), saillies étudiées en nombre et en taille de façon à s'étendre à travers les perforations (2) de la paroi de boitier (1) et à ne dépasser que de peu au-delà de la surface externe et à pouvoir coulisser dans les perforations (2) dans la zone de l'interrupteur pour autoriser, dans le but de la manoeuvre de l'interrupteur à bouton-poussoir (5, 6), la feuille ou la plaque (4) à prendre und forme concave vers l'intérieur, la paroi de boitier (1) présentant dans la zone de l'interrupteur (5, 6) une concavité (8) dirigée vers l'intérieur.
2. Boitier selon la revendication 1, caractérisé en ce que la feuille ou plaque (4) présente, dans la zoné de la concavité (8) une épaisseur de paroi plus faible que par ailleurs.
3. Boitier selon l'une des revendications 1 ou 2, caractérisé en ce qu'il forme la plaque de manoeuvre d'un interrupteur électrique à bouton-poussoir (5, 6) et en ce que cette feuille ou plaque (4) agit sur le mécanisme (5) de l'interrupteur (6).
EP79200572A 1978-10-25 1979-10-09 Boîter avec un interrupteur à bouton-poussoir pour appareils électriques Expired EP0011320B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79200572T ATE7827T1 (de) 1978-10-25 1979-10-09 Gehaeuse mit druckschalter fuer elektrische geraete.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2846354 1978-10-25
DE19782846354 DE2846354A1 (de) 1978-10-25 1978-10-25 Druckschalter fuer elektrische geraete

Publications (3)

Publication Number Publication Date
EP0011320A2 EP0011320A2 (fr) 1980-05-28
EP0011320A3 EP0011320A3 (en) 1981-11-18
EP0011320B1 true EP0011320B1 (fr) 1984-06-06

Family

ID=6053033

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79200572A Expired EP0011320B1 (fr) 1978-10-25 1979-10-09 Boîter avec un interrupteur à bouton-poussoir pour appareils électriques

Country Status (4)

Country Link
EP (1) EP0011320B1 (fr)
AT (1) ATE7827T1 (fr)
DE (2) DE2846354A1 (fr)
HK (1) HK81688A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2739137C2 (de) * 1977-08-31 1983-07-14 Braun Ag, 6000 Frankfurt Gehäuse für von Hand gehaltene Geräte
DE3406522A1 (de) * 1984-02-11 1985-09-12 Pelikan Ag, 3000 Hannover Gehaeuse fuer von hand gehaltene geraete, insbesondere schreibgeraete
DE3404923A1 (de) * 1984-02-11 1985-08-14 Pelikan Ag, 3000 Hannover Gehaeuse fuer von hand gehaltene geraete, insbesondere schreibgeraete
JP4179423B2 (ja) 1998-03-27 2008-11-12 エヌエックスピー ビー ヴィ 金属リードフレームに基づく埋め込みモジュールと二面チィプカバーを有するデータ媒体
WO1999050868A1 (fr) * 1998-03-27 1999-10-07 Koninklijke Philips Electronics N.V. Appareil comportant un commutateur pouvant etre enclenche au moyen d'un boitier en forme de dome

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH344987A (fr) * 1957-02-16 1960-03-15 Aesup Brosse à dents électrique
DE1199734B (de) * 1963-04-13 1965-09-02 Alfred Paul K G Massage-Zahnbuerste
DE1597046B2 (de) * 1967-04-25 1976-01-02 Agfa-Gevaert Ag, 5090 Leverkusen Kamera mit einer Auslösehandhabe
US3959610A (en) * 1974-12-13 1976-05-25 Motorola, Inc. Hermetically sealed keyboard type assembly with elastomeric electrical connecting link between switch and component modules
US3932721A (en) * 1975-02-03 1976-01-13 Motorola, Inc. Sealed switch actuator
US4032738A (en) * 1975-05-15 1977-06-28 Neomed Incorporated Electro-surgical instrument
DE7615209U1 (de) * 1975-05-21 1977-03-24 Sinclair Radionics Ltd., Huntingdon, Cambridgeshire (Grossbritannien) Elektronische Digitaluhr
DE2704886B2 (de) * 1977-02-05 1979-04-12 Bizerba-Werke Wilhelm Kraut Kg, 7460 Balingen Tastatur zur Betätigung von Druckschaltern
DE2739137C2 (de) * 1977-08-31 1983-07-14 Braun Ag, 6000 Frankfurt Gehäuse für von Hand gehaltene Geräte

Also Published As

Publication number Publication date
ATE7827T1 (de) 1984-06-15
DE2967040D1 (en) 1984-07-12
EP0011320A3 (en) 1981-11-18
DE2846354C2 (fr) 1987-09-17
EP0011320A2 (fr) 1980-05-28
DE2846354A1 (de) 1980-05-08
HK81688A (en) 1988-10-14

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