DK168720B1 - Contact device and hearing aid equipment with at least one such device - Google Patents

Contact device and hearing aid equipment with at least one such device Download PDF

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Publication number
DK168720B1
DK168720B1 DK121493A DK121493A DK168720B1 DK 168720 B1 DK168720 B1 DK 168720B1 DK 121493 A DK121493 A DK 121493A DK 121493 A DK121493 A DK 121493A DK 168720 B1 DK168720 B1 DK 168720B1
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DK
Denmark
Prior art keywords
contact
contact device
contact member
actuating
movable
Prior art date
Application number
DK121493A
Other languages
Danish (da)
Other versions
DK121493D0 (en
Inventor
Jacek Krzeminski
Original Assignee
Oticon As
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 Oticon As filed Critical Oticon As
Priority to DK121493A priority Critical patent/DK168720B1/en
Publication of DK121493D0 publication Critical patent/DK121493D0/en
Application granted granted Critical
Publication of DK168720B1 publication Critical patent/DK168720B1/en
Priority to AU80575/94A priority patent/AU8057594A/en
Priority to PCT/DK1994/000396 priority patent/WO1995012207A1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/54—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions
    • H01H19/60—Angularly-movable actuating part carrying no contacts
    • H01H19/63—Contacts actuated by axial cams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/60—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles
    • H04R25/603—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles of mechanical or electronic switches or control elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/60—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles
    • H04R25/609—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles of circuitry
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/64—Protective enclosures, baffle plates, or screens for contacts
    • H01H1/66—Contacts sealed in an evacuated or gas-filled envelope, e.g. magnetic dry-reed contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/02—Details
    • H01H19/10—Movable parts; Contacts mounted thereon
    • H01H19/11—Movable parts; Contacts mounted thereon with indexing means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/004—Application hearing aid
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/57—Aspects of electrical interconnection between hearing aid parts
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/61—Aspects relating to mechanical or electronic switches or control elements, e.g. functioning

Description

i DK 168720 B1in DK 168720 B1

Opfindelsen angår en kontaktindretning af den i krav l's indledning angivne art.The invention relates to a contact device of the kind specified in the preamble of claim 1.

Kontaktindretninger af den nævnte art anvendes i de såkaldte laminerede omskiftere. I én kendt omskifter af 5 denne art udgøres det bevægelige kontaktorgan af et tyndt metallag, der er direkte forbundet med en bøjelig plastplade, f.eks. i form af et trykt kredsløb. I en anden kendt omskifter af denne art udgøres det bevægelige kontaktorgan af en løs, bistabil metalfjeder eller membran. Ved visse anvendel-10 ser, f.eks. i omskiftere i høreapparater, skal mindst ét bevægeligt kontaktorgan til stadighed være aktiveret til berøring med det tilhørende stationære kontaktorgan, og af denne årsag er førstnævnte løsning uanvendelig, eftersom den bøjelige plastplade, hvormed det bevægelige kontaktorgan 15 er fast forbundet, under lang tids påvirkning giver efter og taber sin elasticitet, så den ikke længere er i stand til at åbne den pågældende kontakt. Den sidstnævnte af de to løsninger kræver så meget plads, at den ikke kan anvendes i et høreapparat, især ikke et høreapparat af "i øret"-typen.Contact devices of the kind mentioned are used in the so-called laminated switches. In one known switch of this kind, the movable contact member is constituted by a thin metal layer directly connected to a flexible plastic sheet, e.g. in the form of a printed circuit. In another known switch of this kind, the movable contact member is a loose, bistable metal spring or diaphragm. In certain applications, e.g. in switches in hearing aids, at least one movable contact member must always be activated for contact with the associated stationary contact member, and for this reason the former solution is inapplicable, since the flexible plastic plate with which the movable contact member 15 is firmly connected gives long-term influence after and loses its elasticity so that it is no longer able to open that contact. The latter of the two solutions requires so much space that it cannot be used in a hearing aid, especially not an "in-ear" type hearing aid.

20 Det er på denne baggrund opfindelsens formål at anvise udformningen af en kontakt indretning af den indledningsvis nævnte art, der ikke er behæftet med de ovenfor omtalte ulemper, og som navnlig er anvendelig i apparater, især høreapparater, hvor den til rådighed stående plads er meget 25 lille, og dette formål opnås ved en kontaktindretning, som ifølge opfindelsen tillige udviser det træk, der er angivet i den kendetegnende del af krav 1. Herved opnås, at der, selv efter lang tids aktivering af det bevægelige kontaktorgan, til stadighed står en elastisk kraft til rådighed, når 30 kontakten skal åbnes ved, at det bevægelige kontaktorgan gives lejlighed til at bøje sig tilbage til afbrydestillingen.Accordingly, it is the object of the invention to provide the design of a contact device of the kind mentioned above, which does not suffer from the above-mentioned drawbacks, and which is particularly useful in hearing aids, in particular hearing aids, where the available space is very 25, and this object is achieved by a contact device which according to the invention also exhibits the feature set forth in the characterizing part of claim 1. Hereby, even after long activation of the movable contact means, a constant resilient force is available when the contact is to be opened by giving the movable contact member an opportunity to bend back to the switching position.

Opfindelsen angår også et høreapparat med én eller flere omskiftere, og dette høreapparat er som angivet i 35 krav 7 ejendommeligt ved, at mindst én omskifter omfatter eller udgøres af en kontaktindretning ifølge opfindelsen.The invention also relates to a hearing aid with one or more switches, and this hearing aid is characterized in that claim at least one switch comprises or comprises a contact device according to the invention.

DK 168720 B1 2DK 168720 B1 2

Hensigtsmæssige udførelsesformer for kontaktindretningen ifølge opfindelsen, hvis virkninger vil fremgå af den efterfølgende specielle del af nærværende beskrivelse, er angivet i krav 2-6.Suitable embodiments of the contact device according to the invention, the effects of which will become apparent from the following specific part of the specification, are set out in claims 2-6.

5 Opfindelsen skal i det følgende forklares nærmere under henvisning til det på tegningen viste udførelseseksempel på en kontaktindretning ifølge opfindelsen, idet fig. 1 er en perspektivisk sprængskitse af kontaktindretningen, 10 fig. 2 ligeledes i perspektiv viser kontaktindretnin gen ifølge fig. 1 i samlet tilstand, fig. 3 og 4 er skematiske snit i større målestok gennem kontaktindretningen ifølge fig. 1 og 2 og viser, hvorledes det bevægelige kontaktorgan ved hjælp af en ydre 15 kraft kan bevæges til kontaktsluttende berøring med det stationære kontaktorgan, fig. 5 er et skematisk snit efter linien V-V i fig.BRIEF DESCRIPTION OF THE DRAWINGS The invention will now be explained in more detail with reference to the exemplary embodiment of a contact device according to the invention shown in the drawing. 1 is a perspective exploded view of the contact device; FIG. 2 is a perspective view of the contact device of FIG. 1 in overall condition; FIG. 3 and 4 are schematic sections on a larger scale through the contact device of FIG. 1 and 2 showing how the movable contact means can be moved by means of an external force for contact closing contact with the stationary contact member; 5 is a schematic section along the line V-V in FIG.

6 og viser en omskifter, der omfatter en kontaktindretning ifølge opfindelsen, og 20 fig. 6 viser den i fig 5 viste omskifter, set i det drejelige aktiveringsorgans aksialretning.6 shows a switch comprising a contact device according to the invention, and FIG. 6 shows the switch shown in Fig. 5, seen in the axial direction of the rotary actuator.

Den i fig. 1 og 2 viste kontakt indretning, der, som det vil fremgå af det følgende, er bestemt til at indgå i en omskifter, består som vist i fig. 1, regnet nedefra, af 25 - en bundplade 5 bestående af en plastplade 2, hvortil ved hjælp af lim 4 er fastgjort et antal stationære kontaktorganer 1 af metal, - en afstandplade 6, der består af en plastplade 7, der har lim 8 på begge sider, og hvori der er udformet et antal 30 gennemgående åbninger 14 ud for visse dele af de stationære kontaktorganer 1 på bundpladen 5, - to metalpladedele 3, udformet i ét med et antal fjedrende flige 3a beliggende ud for de gennemgående åbninger 14, og - en dækplade 9 bestående af en plastplade 10 og lim 11, 35 idet plastpladen 10 til forskel fra de ovenfor omtalte plastplader 2 og 7 er bøjelig, således som det vil fremgå DK 168720 B1 3 af det følgende.The FIG. 1 and 2, which, as will become apparent from the following, are intended to be included in a switch, consist as shown in FIG. 1, bottom view, of 25 - a base plate 5 consisting of a plastic plate 2 to which a number of stationary metal contact means 1 are attached by means of glue - a spacer plate 6 consisting of a plastic plate 7 having glue 8 on it both sides, and wherein a plurality of 30 through openings 14 are formed adjacent to certain portions of the stationary contact members 1 on the base plate 5, - two metal plate parts 3, formed integrally with a plurality of resilient tabs 3a located adjacent the through openings 14, and - a cover plate 9 consisting of a plastic plate 10 and glue 11, 35 in which the plastic plate 10, unlike the above mentioned plastic plates 2 and 7, is flexible, as will be seen from DK 168720 B1 3 below.

Når de i fig. i viste og ovenfor omtalte dele er samlet, således som det er vist i fig. 2, holdes delene sammen af de forskellige lag lim 4, 8 og 11 på en sådan 5 måde, at de gennemgående åbninger 14 danner hermetisk lukkede kamre. Disse kamre kan fyldes med en korrosionshæmmende luftart eller luftartsblanding, f.eks. ved at udføre det sidste trin af samlearbejdet i en hertil svarende atmosfære.When in FIG. in the parts shown and mentioned above are assembled as shown in fig. 2, the parts are held together by the different layers of glue 4, 8 and 11 in such a way that the through openings 14 form hermetically sealed chambers. These chambers can be filled with a corrosion-inhibiting gaseous or gaseous mixture, e.g. by performing the final step of the assembly work in a corresponding atmosphere.

Fig. 3 og 4, der som nævnt udgør skematiske delsnit 10 af den i fig. 2 viste kontakt indretning, viser hvorledes den bøjelige plastplade 10 giver efter for en ydre kraft P og tillader denne at trykke den fjedrende flig 3a til berøring med det stationære kontaktorgan 1. Eftersom fligen 3a består af elastisk materiale og under den i fig. 4 viste 15 udbøjning ikke overskrider sin elasticitetsgrænse, vil den, selv efter længere tids udøvelse af kraften P, altid gå tilbage til den i fig. 3 viste stilling. Eftersom kammeret 14 er fuldstændigt lukket mod omgivelserne, vil kontaktfunktionen ikke kunne påvirkes udefra ad kemisk vej, dvs., at 20 kontaktorganerne 3a og 1 er beskyttet mod luftens oxygen og alle de stoffer, som navnlig et Mi øret "-høreapparat kan blive udsat for, såsom sved, hudfedt og bestanddele af forskellige kosmetiske præparater, herunder hudcreme, hårvand, barbersprit m.v.FIG. 3 and 4 which, as mentioned, constitute schematic section 10 of the embodiment shown in FIG. 2 shows how the flexible plastic plate 10 gives off an external force P and allows it to press the resilient tab 3a into contact with the stationary contact member 1. Since the tab 3a consists of elastic material and below the one shown in FIG. 4 does not exceed its limit of elasticity, even after prolonged application of the force P, it will always return to that of FIG. 3. Since the chamber 14 is completely closed to the environment, the contact function cannot be affected from the outside by chemical means, i.e., the contact means 3a and 1 are protected against the oxygen of the air and all the substances to which in particular a Mi ear "hearing aid can be exposed. such as sweat, skin grease and constituents of various cosmetic preparations, including skin cream, hair water, shaving cream, etc.

25 Den i fig. 5 og 6 viste omskifter, der omfatter en kontaktindretning 1-11 som beskrevet ovenfor under henvisning til fig. 1-4, omfatter et hus 21 med en midterskillevæg 15, idet kontaktindretningen - eller snarere dennes centrale dele - er anbragt i rummet under midterskillevæggen 15 og 30 holdt på plads af et dæksel 22, medens der i rummet over midterskillevæggen er anbragt et aktiveringsorgan 16, der er drejeligt lejret om en central lejetap 23, der er fastgjort i midterskillevæggen 15. I de gennemgående åbninger i midterskillevæggen 15 er der glidende lejret et tilsvarende 35 antal kugler 12, hvis beliggenhed svarer til beliggenheden af de i fig. 1 viste, gennemgående åbninger 14, således at DK 168720 B1 4 den i fig. 4 viste kraft 10 kan udøves ved hjælp af disse kugler. Aktiveringsorganet 16 bærer én eller flere bladfjedre 17, hvis spændkraft i den til venstre i fig. 5 viste stilling er tilstrækkelig til at presse den fjedrende flig 3a ned 5 til den i fig. 4 viste stilling, hvor den berører det stationære kontaktorgan 1.The embodiment of FIG. 5 and 6, comprising a contact device 1-11 as described above with reference to FIG. 1-4, comprises a housing 21 having a central partition 15, the contact device - or rather its central parts - being arranged in the space below the middle partition wall 15 and 30 held in place by a cover 22, while an activating means 16 is arranged in the space above the middle partition wall. pivotally mounted about a central bearing pin 23 secured to the center partition 15. In the through openings of the middle partition 15 there is slidingly mounted a corresponding number of balls 12, the position of which corresponds to the position of the one shown in FIG. 1, through openings 14, so that the embodiment shown in FIG. 4 can be exerted by these balls. The actuator 16 carries one or more leaf springs 17, the tensioning force of which is shown on the left in FIG. 5 is sufficient to push the resilient tab 3a down 5 to that of FIG. 4, where it touches the stationary contact member 1.

Fig. 6 viser, hvorledes det drejelige aktiveringsorgan 16 er udstyret med et arreteringsfremspring 19, som på i princippet kendt måde samvirker med en arreteringsfjeder 10 18, der er fastgjort til huset 21.FIG. 6 shows how the rotatable actuator 16 is provided with an arresting protrusion 19 which cooperates in a known manner in principle with an arresting spring 10 18 attached to the housing 21.

Som det vil kunne ses ved at sammenholde fig. l og 2, rager dele af de stationære kontaktorganer 1 og af metalpladedelene 3 ud af den i fig. 2 viste "stabel", idet dele af overliggende plader er fjernet, medens de tilsvarende 15 dele af underliggende plader ikke er fjernet, således at de støtter de udragende kontakt stykker, f.eks. med henblik på at forbinde disse med dertil indrettede fatninger eller 1oddefligerækker.As can be seen by comparing FIG. 1 and 2, portions of the stationary contact members 1 and of the metal plate parts 3 protrude from the one shown in FIG. 2, parts of overlying plates are removed while the corresponding 15 parts of underlying plates are not removed so as to support the protruding contact pieces, e.g. with a view to connecting these with their sockets or 1-point flange rows.

DK 168720 B1 5 GENSTANDSFORTEGNELSE P kraft (13) 1 stationært kontaktorgan 2 plastplade 3 metalpladedel 3a fjedrende flig 4 lim 5 bundplade 6 afstandsplade 7 plastplade S lim 9 dækplade 10 plastplade (bøjelig) 11 lim 12 kugler 13 kraft (P) 14 gennemgående åbning/kammer 15 midterskillevæg 16 aktiveringsorgan 17 bladfjeder 18 arreteringsfjeder 19 arreteringsfremspring 21 hus 22 dæksel 23 lejetapDK 168720 B1 5 LIST OF ARTICLES P force (13) 1 stationary contact member 2 plastic plate 3 metal plate part 3a resilient tab 4 glue 5 base plate 6 spacer plate 7 plastic plate S glue 9 cover plate 10 plastic plate (flexible) 11 glue 12 balls 13 force (P) 14 through opening / chamber 15 center partition 16 actuator 17 leaf spring 18 arresting spring 19 arresting protrusion 21 housing 22 cover 23 bearing pin

Claims (7)

1. Kontakt indretning omfattende et antal i alt væsentligt plane, sammenlimede lag (2,1,6,3,9) og mindst ét stationært kontaktorgan (1) og mindst ét bevægeligt kontaktorgan 5 (3a), der kan bevæges til og fra berøring med det stationære kontaktorgan (1), hvilken indretning er af den art, hvori de til indbyrdes berøring indrettede dele af kontaktorganerne (1,3a) er anbragt i udadtil hermetisk lukkede kamre (14), som hvert omfatter mindst én udadvendende væg (9) bestående af 10 fluidumtæt, eftergivende materiale og indrettet til at overføre kraft (P) fra et ydre aktiveringsorgan (12) til det bevægelige kontaktorgan (3a), kendetegnet ved, at det bevægelige kontaktorgan (3a) udgøres af en bøjelig flig af en af elastisk, elektrisk ledende metal udformet 15 plade (3), der udgør et af de nævnte sammenhørende lag, idet indretningen er en sådan, at den bøjelige flig (3a) under aktiveringen ikke kan bøjes ud over sin elasticitetsgrænse.A contact device comprising a plurality of substantially flat, bonded layers (2,1,6,3,9) and at least one stationary contact member (1) and at least one movable contact member 5 (3a) movable to and from contact with the stationary contact member (1), the device of which the mutually arranged portions of the contact members (1,3a) are arranged in externally hermetically sealed chambers (14), each comprising at least one outward-facing wall (9) consisting of 10 fluid-tight, resilient material and adapted to transfer force (P) from an outer actuator (12) to the movable contact member (3a), characterized in that the movable contact member (3a) is constituted by a flexible tab of one of elastic members. electrically conductive metal formed plate (3) forming one of said interconnecting layers, the device being such that the flexible tab (3a) during activation cannot be bent beyond its elastic limit. 2. Kontaktindretning ifølge krav 1, kendeteg net ved, at den af elastisk, elektrisk ledende metal udformede plade (3) består af rustfrit stål, titanium eller en kobberlegering, eventuelt belagt med et lag af et metal eller en metallegering af den art, der modstår korrosion og 25 giver en lav og stabil kontaktmodstand.Contact device according to claim 1, characterized in that the plate (3) formed of elastic, electrically conductive metal consists of stainless steel, titanium or a copper alloy, optionally coated with a layer of a metal or a metal alloy of the kind which resists corrosion and 25 provides a low and stable contact resistance. 3. Kontaktindretning ifølge krav 1 eller 2, kendetegnet ved, at det eller de hermetisk lukkede kamre. (14) er fyldt med en korrosionsbeskyttende luftart 30 eller luftartsblanding.Contact device according to claim 1 or 2, characterized in that the hermetically sealed chamber (s). (14) is filled with a corrosion-protective gaseous gas or gaseous mixture. 4. Kontaktindretning ifølge et eller flere af kravene 1-3, kendetegnet ved, at aktiveringsorganets (12) mod den eftergivende væg (9) vendende side er konvekst 35 krum. DK 168720 B1 7Contact device according to one or more of claims 1-3, characterized in that the actuating member (12) facing the compliant wall (9) is convex 35 curved. DK 168720 B1 7 5. Kontaktindretning ifølge krav 4, kendetegnet ved, at aktiveringsorganet udgøres af en kugle (12).Contact device according to claim 4, characterized in that the actuating means is a ball (12). 6. Kontaktindretning ifølge et eller flere af kravene 5 1-5, kendetegnet ved, at aktiveringsorganet (12) kan påvirkes i aktiveringsretningen af en bladfjeder (17) på et betjeningsorgan (16), der er bevægeligt lejret i kontaktindretningen, idet denne omfatter arreteringsorganer (18,19) til fastholdelse af betjeningsorganet (16) i én eller flere 10 forud bestemte stillinger.Contact device according to one or more of Claims 5 to 5, characterized in that the actuating means (12) can be actuated in the actuating direction by a leaf spring (17) on an actuating member (16) movably mounted in the contact device, which comprises arresting means. (18, 19) for holding the control (16) in one or more predetermined positions. 7. Høreapparat med én en flere omskiftere, kendetegnet ved, at mindst én omskifter omfatter eller udgøres af en kontaktindretning ifølge et eller flere af 15 kravene 1-6.Hearing aid with one or more switches, characterized in that at least one switch comprises or constitutes a contact device according to one or more of claims 1 to 6.
DK121493A 1993-10-28 1993-10-28 Contact device and hearing aid equipment with at least one such device DK168720B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DK121493A DK168720B1 (en) 1993-10-28 1993-10-28 Contact device and hearing aid equipment with at least one such device
AU80575/94A AU8057594A (en) 1993-10-28 1994-10-27 Electrical contact device and hearing aid with such a device
PCT/DK1994/000396 WO1995012207A1 (en) 1993-10-28 1994-10-27 Electrical contact device and hearing aid with such a device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK121493A DK168720B1 (en) 1993-10-28 1993-10-28 Contact device and hearing aid equipment with at least one such device
DK121493 1993-10-28

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Publication Number Publication Date
DK121493D0 DK121493D0 (en) 1993-10-28
DK168720B1 true DK168720B1 (en) 1994-05-24

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DK (1) DK168720B1 (en)
WO (1) WO1995012207A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1120011A2 (en) 1998-10-07 2001-08-01 Oticon A/S Hearing aid and switch for a hearing aid
EP1318535A1 (en) * 2003-03-20 2003-06-11 Phonak Ag Foldable sheet switch and method of manufacture
DE602004002809T3 (en) * 2003-07-08 2011-05-05 Sonion Roskilde A/S Operating device with wake-up zone
US6972386B1 (en) 2004-07-20 2005-12-06 Knowles Electronics, Llc Digital pulse generator and manufacturing method thereof
DE102011103598B4 (en) * 2011-05-30 2017-04-06 Heraeus Deutschland GmbH & Co. KG Laminate for making a switch
DE102011122862B3 (en) * 2011-05-30 2018-11-15 Heraeus Deutschland GmbH & Co. KG Laminate for producing a switch, switch and laminate web with laminate elements of such a laminate and method for producing such a laminate

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2439697B2 (en) * 1973-08-20 1977-08-04 Northern Electric Co, Ltd., Montreal, Quebec (Kanada) PRESSURE SWITCH
DE3239324C2 (en) * 1982-10-23 1984-10-04 Standard Elektrik Lorenz Ag, 7000 Stuttgart Push button switch in the housing of an electrical device
DE3305619A1 (en) * 1983-02-18 1984-08-23 Telefunken electronic GmbH, 6000 Frankfurt KEY SWITCHING DEVICE
DE4126042A1 (en) * 1991-08-06 1993-02-18 Ruf Kg Wilhelm Electrical rotary selector switch for keyboard of e.g. pocket calculator, remote controller - has bridging contact formed on flexible mat that is locally deflected by roller to bridge circuit board contacts

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WO1995012207A1 (en) 1995-05-04
DK121493D0 (en) 1993-10-28
AU8057594A (en) 1995-05-22

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Date Code Title Description
A0 Application filed
B1 Patent granted (law 1993)
PBP Patent lapsed

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