EP0329920A1 - Bouton-poussoir - Google Patents

Bouton-poussoir Download PDF

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Publication number
EP0329920A1
EP0329920A1 EP88810889A EP88810889A EP0329920A1 EP 0329920 A1 EP0329920 A1 EP 0329920A1 EP 88810889 A EP88810889 A EP 88810889A EP 88810889 A EP88810889 A EP 88810889A EP 0329920 A1 EP0329920 A1 EP 0329920A1
Authority
EP
European Patent Office
Prior art keywords
display element
cap
housing
contact elements
switching part
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.)
Withdrawn
Application number
EP88810889A
Other languages
German (de)
English (en)
Inventor
Martin Walther
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.)
Tschudin und Heid AG
Original Assignee
Tschudin und Heid AG
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 Tschudin und Heid AG filed Critical Tschudin und Heid AG
Publication of EP0329920A1 publication Critical patent/EP0329920A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/18—Distinguishing marks on switches, e.g. for indicating switch location in the dark; Adaptation of switches to receive distinguishing marks
    • H01H9/181—Distinguishing marks on switches, e.g. for indicating switch location in the dark; Adaptation of switches to receive distinguishing marks using a programmable display, e.g. LED or LCD
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/002—Legends replaceable; adaptable
    • H01H2219/01—Liquid crystal
    • H01H2219/012—Liquid crystal programmable

Definitions

  • pushbutton switches with a pushbutton cap which is locked with a tubular extension on a switching part which is axially displaceably mounted in the switch housing.
  • the latched pushbutton cap often has a colored front surface so that the different pushbutton switches arranged in a control panel can be distinguished from one another.
  • these switches have a glow or incandescent lamp on the inside that illuminates the front surface continuously from the inside or depending on the switch position or switching status, whereby the front surface can be uniformly translucent or can be provided with numbers, letters or symbols that either improve the light let pass through than the rest of the surface and act as a lighter symbol on a darker surface or stand out from the rest of the surface by being opaque and then appearing black.
  • the energy required for this type of labeling is now not negligible in all cases, be it that the heat generated by the lamp disturbs it and must therefore be dissipated by additional installations, or that the power consumption requires additional switching devices, i.e. transistor amplifiers - And switching off the lamp in function of the switching state to be displayed of the circuit to be influenced by the switch required.
  • the switch according to the present invention now serves to remedy these and other disadvantages, such as the relatively short lifespan of the incandescent lamps that can be used. It is characterized in that the probe cap is a liquid crystal (LCD) - or light-emitting diode (LED) - which is arranged essentially perpendicular to its direction of displacement and is at least partially visible from the outside and has electrical connections. Display element has.
  • the first exemplary embodiment of a switch according to the invention shown in FIGS. 1 and 2 has a housing denoted by 1. As is known per se, this is provided on the outside with a shoulder 1a and an adjoining external thread 1b so that it can be inserted into the bore 2a of a mounting plate 2 and screwed there with a nut 3, the annular seal 4 not only one ensures watertight sealing at all possible water pressures but also gives the possibility of tightening the nut 3 without creating a risk of tearing the housing 1.
  • the switching part designated 5 is now axially displaceably mounted. This switching part 5 is shown in FIG. 1 in its upper position and in FIG. 2 in its lower position. As is known per se, it serves to open and close electrical contacts.
  • the actuating element for this switching part 5 is the touch cap designated 10, which is composed of three individual parts, the base part 6 with the tubular extension 6a, the display element 7 resting on top of it and the protective cap 8 protecting this display element 7.
  • the tubular extension 6a has barb-like cams 6b, which serve to lock the probe cap 10 with the switching part 5, which is provided for this purpose with corresponding recesses 5a.
  • the cams 6b have a bevel 6c on the underside, which enables problem-free and easy engagement in the recesses 5a, while the bevel 6d on the top of the cams is somewhat flatter, as a result has that the probe cap can be pulled out of the catch, but that this requires a greater force than for the insertion.
  • This rolling membrane 9 has a thickening 9a on its inner edge region, with which it sits in a groove 5c of the shoulder 5b of the switching part 5, where it is held in place by the axial pressure of the lower edge of the tubular extension 6a of the base part 6.
  • the outer edge region 9b of the membrane 9 sits in a vertical groove 1c of the housing 1 and is connected by a plurality of material strands to the annular seal 4, with which it thus forms a single workpiece which is produced on site by the injection molding process.
  • the display element 7 which rests on the base part 6 provided with the tubular extension 6a and which is, for example, plate-shaped and / or substantially perpendicular to the Direction of displacement of the entire probe cap 10 is now formed by a light-emitting diode, ie LED (light-emitting diodes) - and / or liquid crystal, ie LCD display element.
  • a light-emitting diode ie LED (light-emitting diodes) - and / or liquid crystal, ie LCD display element.
  • This display element 7 is covered by the removable protective cap 8, of which at least part of the touch surface 8a, which is at least approximately perpendicular to the displacement axis, is transparent or translucent, so that the display element 7 can fulfill its display functions.
  • This display element 7 now has electrical connections, each of which is provided with a contact element, of which only three are shown in the drawing and are designated by 7a, 7b and 7c.
  • This contact element is a contact element which is rigidly connected to the display element 7 and which fits into corresponding contact sleeves 12a, 12b or 12c which are firmly inserted in the switching part 5.
  • the second exemplary embodiment shown in FIGS. 3 and 4 differs from the first exemplary embodiment described above essentially in that the contact sleeves, now designated with 22a, 22b and 22c, are not rigidly connected to the movable part of the switch, that is to say to the switching part 5, but are used in a contact carrier 23, which in turn is rigidly connected to the housing 1.
  • the connecting lines 21 which lead to the connection element arranged in the housing base do not have to be as flexible as the wires 11 present in the first exemplary embodiment Pins 21a, 21b and 21c fit with the sleeves 22a, 22b and 22c in such a way that, despite the innumerable movements, so to speak, they always make sufficiently good contact during the life of such a switch.
  • the contact elements need not be pins and sleeves in either the first or the second exemplary embodiment; other configurations can also be provided, such as spring tongues resting one on the other under pretension, or contact blades inserted between two remote tongues or any other contact elements.
  • the push-button switches according to the invention can optionally be designed as non-latching push buttons or as latching push-button switches.
  • a pushbutton switch designed as a pushbutton can have at least one switching contact which is only activated during the actuation of the actuating member, i.e. when a manual pressure force is exerted on this, its switching state changes temporarily.
  • a pushbutton switch designed as a latching switch can have at least one switching contact, which maintains its switching state when the actuating member is operated manually until the next actuation.

Landscapes

  • Push-Button Switches (AREA)
EP88810889A 1988-02-23 1988-12-21 Bouton-poussoir Withdrawn EP0329920A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH669/88 1988-02-23
CH66988 1988-02-23

Publications (1)

Publication Number Publication Date
EP0329920A1 true EP0329920A1 (fr) 1989-08-30

Family

ID=4192390

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88810889A Withdrawn EP0329920A1 (fr) 1988-02-23 1988-12-21 Bouton-poussoir

Country Status (1)

Country Link
EP (1) EP0329920A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2673761A1 (fr) * 1991-03-08 1992-09-11 Systemes Audio Frequences Clavier a touches mobiles.
WO1993009553A1 (fr) * 1991-11-01 1993-05-13 United Technologies Automotive, Inc. Boitier hermetique pour un dispositif de commutation a distance
WO1994024683A1 (fr) * 1993-04-22 1994-10-27 Maygay Machines Limited Interrupteurs a poussoir
EP1005055A2 (fr) * 1998-11-27 2000-05-31 G&A Engineering S.r.l. Bouton-poussoir illuminé avec couleurs et luminosité controlées électroniquement
WO2004102977A2 (fr) * 2003-05-16 2004-11-25 Inquam (Uk) Limited Dispositif de communication
WO2005047049A1 (fr) 2003-10-20 2005-05-26 Volkswagen Aktiengesellschaft Bouton tournant pour automobile
DE102004045885A1 (de) * 2004-09-22 2006-03-23 Volkswagen Ag Bedienelement für ein Kraftfahrzeug
EP1655750A2 (fr) * 2004-11-08 2006-05-10 LCD Solution SARL Commutateur à touche à écran intégré avec affichage d'information polychrome
DE102009023887A1 (de) 2009-06-04 2011-03-10 Volkswagen Ag Bedienvorrichtung für ein Kraftfahrzeug

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3031196A1 (de) * 1979-08-21 1981-03-26 Omron Tateisi Electronics Co., Kyoto Beleuchteter druckknopfschalter
US4431879A (en) * 1981-10-06 1984-02-14 Nihon Kaiheiki Kogyo Kabushiki Kaisha Illumination-type pushbutton switch construction
DE8419690U1 (de) * 1984-06-30 1985-07-04 Lawo, Peter, Dipl.-Ing., 7550 Rastatt Schaltvorrichtung mit optischer Anzeige
EP0232137A2 (fr) * 1986-01-30 1987-08-12 Dowty Electronic Components Limited Interrupteurs à bouton-poussoir à légende remplaçable

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3031196A1 (de) * 1979-08-21 1981-03-26 Omron Tateisi Electronics Co., Kyoto Beleuchteter druckknopfschalter
US4431879A (en) * 1981-10-06 1984-02-14 Nihon Kaiheiki Kogyo Kabushiki Kaisha Illumination-type pushbutton switch construction
DE8419690U1 (de) * 1984-06-30 1985-07-04 Lawo, Peter, Dipl.-Ing., 7550 Rastatt Schaltvorrichtung mit optischer Anzeige
EP0232137A2 (fr) * 1986-01-30 1987-08-12 Dowty Electronic Components Limited Interrupteurs à bouton-poussoir à légende remplaçable

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
J.E.E. JOURNAL OF ELECTRONIC ENGINEERING *

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2673761A1 (fr) * 1991-03-08 1992-09-11 Systemes Audio Frequences Clavier a touches mobiles.
WO1993009553A1 (fr) * 1991-11-01 1993-05-13 United Technologies Automotive, Inc. Boitier hermetique pour un dispositif de commutation a distance
US5260532A (en) * 1991-11-01 1993-11-09 United Technologies Automotive, Inc. Sealed housing for a remote switching device
WO1994024683A1 (fr) * 1993-04-22 1994-10-27 Maygay Machines Limited Interrupteurs a poussoir
EP1005055A2 (fr) * 1998-11-27 2000-05-31 G&A Engineering S.r.l. Bouton-poussoir illuminé avec couleurs et luminosité controlées électroniquement
EP1005055A3 (fr) * 1998-11-27 2001-11-07 G&A Engineering S.r.l. Bouton-poussoir illuminé avec couleurs et luminosité controlées électroniquement
WO2004102977A2 (fr) * 2003-05-16 2004-11-25 Inquam (Uk) Limited Dispositif de communication
WO2004102977A3 (fr) * 2003-05-16 2005-10-27 Inquam Uk Ltd Dispositif de communication
WO2005047049A1 (fr) 2003-10-20 2005-05-26 Volkswagen Aktiengesellschaft Bouton tournant pour automobile
US7812274B2 (en) 2003-10-20 2010-10-12 Volkswagen Ag Rotary knob for a motor vehicle
DE102004045885A1 (de) * 2004-09-22 2006-03-23 Volkswagen Ag Bedienelement für ein Kraftfahrzeug
EP1655750A2 (fr) * 2004-11-08 2006-05-10 LCD Solution SARL Commutateur à touche à écran intégré avec affichage d'information polychrome
FR2877764A1 (fr) * 2004-11-08 2006-05-12 Lcd Solution Sarl Commutateur a touche a ecran integre avec affichage d'information polychrome
EP1655750A3 (fr) * 2004-11-08 2007-08-22 LCD Solution SARL Commutateur à touche à écran intégré avec affichage d'information polychrome
DE102009023887A1 (de) 2009-06-04 2011-03-10 Volkswagen Ag Bedienvorrichtung für ein Kraftfahrzeug

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