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EP0041245B1 - Elektronisches Uhrwerk mit elektro akustischem Übertrager - Google Patents

Elektronisches Uhrwerk mit elektro akustischem Übertrager Download PDF

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Publication number
EP0041245B1
EP0041245B1 EP81104110A EP81104110A EP0041245B1 EP 0041245 B1 EP0041245 B1 EP 0041245B1 EP 81104110 A EP81104110 A EP 81104110A EP 81104110 A EP81104110 A EP 81104110A EP 0041245 B1 EP0041245 B1 EP 0041245B1
Authority
EP
European Patent Office
Prior art keywords
transducer
decoration
dial
electrode
printed circuit
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
EP81104110A
Other languages
English (en)
French (fr)
Other versions
EP0041245A1 (de
Inventor
Claude André Gygax
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.)
SSIH Management Services SA
Original Assignee
Societe Suisse pour lIindustrie Horlogere Management Services SA
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 Societe Suisse pour lIindustrie Horlogere Management Services SA filed Critical Societe Suisse pour lIindustrie Horlogere Management Services SA
Publication of EP0041245A1 publication Critical patent/EP0041245A1/de
Application granted granted Critical
Publication of EP0041245B1 publication Critical patent/EP0041245B1/de
Expired legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G13/00—Producing acoustic time signals
    • G04G13/02—Producing acoustic time signals at preselected times, e.g. alarm clocks
    • G04G13/021—Details

Definitions

  • the present invention relates to an electronic timepiece comprising at least analog display means, the hands of which are located between a dial and a crystal carrying on its internal face a metallic decoration partially covering it to support an electro piezoelectric transducer.
  • a printed circuit comprising the control electronics and the output terminals of an electric signal of acoustic frequency, this printed circuit being situated on the side opposite to the transducer with respect to the dial, and an electrical connection device between the output terminals and the transducer, comprising two conductive leads of the tenon type having one end welded to an output terminal of a printed circuit and the other end receiving a flexible contact blade electric, these leads being arranged first to come into contact with said decoration metallized, the second to come into contact with a second electrode of said transducer.
  • Timepieces are known of which the alarm device is in the form of an electro-acoustic transducer operatively associated with the crystal of the watch. It is generally a piezoelectric patch bonded to the face. internal glass and which receives an acoustic signal from the watch electronics.
  • the utility model JA 1 223 023 describes an electric alarm clock which includes a piezoelectric plate fixed to the inner face of the glass. The plate oscillates at an audible frequency thanks to the signals emitted by the circuit arranged in the box. The wafer in turn causes the ice to audibly vibrate.
  • the plate is in the center of the crystal and its connection to the internal circuit is made by means of two wires which first pass through the crystal and then penetrate inside the watch through a hole made in the periphery of the dial.
  • the present invention overcomes this drawback by proposing a construction in which soldering or conductive glue is avoided to connect the wafer to its power source, which greatly facilitates the fitting of the watch.
  • the object of the present invention is to propose, in a timepiece with an analog mechanical display, connection means between the electronic module and the electro-acoustic transducer, means which appear in claim 1.
  • FIG. 1 shows a timepiece with analog display provided with hands 18.
  • the dial 1 bears the hour markers 2 and appears through a crystal '3.
  • the dial is partially masked by a decoration 4 which is affixed to the inside of the glass. Under this decoration appears in dotted lines a piezoelectric transducer 5 and the pins 12 which will be discussed later.
  • FIG 2 which is a section along line AA of Figure 1 shows the same elements.
  • the glass 3 is coated on its internal face with a decoration 4 which partially covers it and which has the particularity of being electrically conductive.
  • the transducer 5 is a piezoelectric patch which has on each of its faces electrodes 6 and 7.
  • the first electrode 6 is applied directly to the metal decoration and is fixed there by means of glue for example. This produces an electrical and mechanical coupling between the electrode 6 and the metallized decoration 4.
  • the drawing shows between the dial 1, the movement 8 and the printed circuit 9 which comprises, in addition to the electronics, two output terminals for an electrical signal. of acoustic frequency of which only one 10 is represented.
  • connection electrical connection between the output terminal 10 and the metallized decoration 4 is produced by means of a conductive supply 11, one end of which rests on the decoration 4.
  • the connection between the output terminal not shown - because it is located in a different plane - and the second electrode 7 of the patch 5 is produced in the same way by a conductive supply of which one of the support ends alone is shown.
  • each of the conductive leads comprise the assembly of a tenon 12 and a blade 13.
  • the tenon is soldered on the printed circuit at its terminal 10 and on the other side it is neckline in 14 identical to what is practiced for the tigeron which receives a usual second hand.
  • the blade 13, which is preferably made of gilded beryllium bronze, is riveted at its first end to a tube 15 fitted with greasy friction on the neck 14 and is supported at its second end 16 on the metallic decoration 4.
  • the another conductive supply is made in the same way and only the second end 17 of its blade appears on the drawing, which rests on the second electrode 7 of the piezoelectric pad 5.
  • the positions taken by the pins are indicated in 16a and 17a. blades 16 and 17 before they bear on the first on the decoration 4 and the second on the electrode 7.
  • the contact blades 13 are placed by fitting the tube 15 onto the turning 14 at the same time as the hands of the watch are placed. In this way, when the movement is introduced into the box, the elastic blades come into contact with the electrodes of the sound pad. This casing operation can thus be entrusted to non-specialized personnel and, in addition, time is saved.
  • FIG. 2 shows that the printed circuit 9 is relatively distant from the piezoelectric pad 5 and that the point of contact of the blade 17 with the electrode 7 is not superimposed on the output terminal (not shown) of the electric acoustic frequency signal located on the printed circuit 9.
  • the preferred embodiment of the invention makes it possible to ensure contact and with distant points (by adjusting the length of the post) and with off-center points (in adjusting the length of the blade).
  • the adhesive film will be very thin, thus also allowing a capacitive electrical coupling between the metallized decoration 4 and the electrode 6.
  • the use of a conductive adhesive on at least part of the electrode 6 is also possible, thus making a galvanic connection with the metallic decoration 4.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)

Claims (3)

1. Elektronisches Uhrwerk mit wenigstens einer analogen Anzeigeeinrichtung, deren Zeiger (18) sich zwischen einen Rahmen (1) und einem Glas (3) befinden, das auf seiner Innenseite eine metallisierte Dekoration (4) trägt, welche es teilweise bedeckt, um einen piezoelektrischen, elektroakustischen Übertrager (5) zu halten und um die elektrische Kopplung mit einer ersten Elektrode (6) des Übertragers zu gewährleisten, mit einer gedruckten Schaltung (9), die die Steuerelektronik und ausgangsanschlüsse (10) für ein elektrisches Signal mit akustischer Frequenz aufweist, wobei diese gedruckte Schaltung auf der bezügliche des Rahmens entgegengesetzten Seite der Übertragers angeordnet ist und mit einer elektrischen Verbindungsvorrichtung zwischen den Ausgangsanschlüssen (10) und dem Übertrager (5), die zwei leitende stiftförmige Zuleitungen (11) enthält, deren eines Ende an einem Ausgangsanschluß einer gedruckten Schaltung angelötet ist, während das andere Ende eine weiche elektrische Kontaktfeder aufnimmt und wobei diese Zuleitungen derart angeordnet sind, daß die erste mit der metallischen Dekoration (4) in Kontakt tritt, die zweite mit einer zweiten Elektrode 7 des Übertragers in Kontakt tritt, dadurch gekennzeichnet, daß jeder Stift (12) so angeordnet ist, daß et ohne Kontakt die Dekoration durchsetzt und unter dieser mündet, wobei das erste Ende des Stiftes an einem der Ausgangsanschlüsse (10) angelötet ist und das zweite Ende lösbar, nachdem der Rahmen einmal eingesetzt ist, eine elastische Feder (13) aufnimmt, wobei die erste vorgesehen ist um sich mit ihrem freien Ende auf der genannten Dekoration abzustützen und die zweite auf der genannten zweiten Elektrode abzustützen, wenn das Uhrwerk in das Gehäuse der Uhr eingesetzt wird.
2. Uhrwerk nach Anspruch 1, dadurch gekennzeichnet, das die genannte Feder an einem Rohr (15) angenietet ist, das im Preßsitz auf dem genannten zweite Ende (14) des Stiftes befestigt ist.
3. Uhrwerk nach Anspruch 2, dadurch gekennzeichnet, daß die genannte Feder aus mit Beryllium überzogener Bronze besteht.
EP81104110A 1980-06-04 1981-05-29 Elektronisches Uhrwerk mit elektro akustischem Übertrager Expired EP0041245B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8012715A FR2484102A1 (fr) 1980-06-04 1980-06-04 Piece d'horlogerie electronique comportant un transducteur electro-acoustique
FR8012715 1980-06-04

Publications (2)

Publication Number Publication Date
EP0041245A1 EP0041245A1 (de) 1981-12-09
EP0041245B1 true EP0041245B1 (de) 1985-02-06

Family

ID=9242837

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81104110A Expired EP0041245B1 (de) 1980-06-04 1981-05-29 Elektronisches Uhrwerk mit elektro akustischem Übertrager

Country Status (6)

Country Link
US (1) US4523856A (de)
EP (1) EP0041245B1 (de)
JP (1) JPS5748681A (de)
DE (1) DE3168746D1 (de)
FR (1) FR2484102A1 (de)
HK (1) HK49890A (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59194104A (ja) * 1983-04-20 1984-11-02 Diesel Kiki Co Ltd 流体圧アクチエ−タ装置
JPS60107405U (ja) * 1983-12-24 1985-07-22 株式会社豊田自動織機製作所 フオ−クリフトにおける荷役用コントロ−ルバルブの切換操作回路
JPS60110703U (ja) * 1983-12-29 1985-07-27 株式会社豊田自動織機製作所 フオ−クリフトにおける荷役用コントロ−ルバルブの切換操作回路
US5847648A (en) * 1994-02-10 1998-12-08 Douglas R. Savor Alarm and intermittent alert system for vehicle operation
EP3712712B1 (de) * 2019-03-18 2021-10-20 Montres Jaquet Droz SA Ziifferblatt einer uhr, das mit einem 3d-dekor versehen ist

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH464272A (de) * 1965-10-25 1968-10-31 Sika Bau Ag Verfahren und Vorrichtung zum Befestigen von Folien auf fester Unterlage, sowie Anwendung des Verfahrens
CH537041A (fr) * 1966-02-17 1970-05-29 Spadini Paolo Montre-bracelet-réveil
GB1359376A (en) * 1970-12-29 1974-07-10 Suwa Seikosha Kk Electric time-peices
BE789336A (fr) * 1971-09-29 1973-01-15 Timex Corp Montre-reveil electronique
US3788060A (en) * 1971-12-09 1974-01-29 Y Kawamura Watch with an electronic buzzer
US3905666A (en) * 1973-03-22 1975-09-16 Ebauches Sa Device for the electric connection between a display device of an electronic timepiece and the circuit controlling the said display device
US3871170A (en) * 1973-04-25 1975-03-18 John M Bergey Solid state watch display switch
US3983690A (en) * 1975-05-19 1976-10-05 Mcsohmer Corporation Digital timepiece having chronometric display
US4068461A (en) * 1976-04-15 1978-01-17 Frontier Inc. Digital electronic alarm watch
JPS5398877A (en) * 1977-02-09 1978-08-29 Casio Comput Co Ltd Alarming device of watches
JPS5543435A (en) * 1978-09-22 1980-03-27 Citizen Watch Co Ltd Electronic watch
JPS5996879A (ja) * 1982-11-25 1984-06-04 Fuji Electric Co Ltd 自己消弧形パワ−デバイス用のスナバ

Also Published As

Publication number Publication date
FR2484102B1 (de) 1984-10-05
EP0041245A1 (de) 1981-12-09
US4523856A (en) 1985-06-18
JPS5748681A (en) 1982-03-20
JPS6253072B2 (de) 1987-11-09
DE3168746D1 (en) 1985-03-21
HK49890A (en) 1990-07-08
FR2484102A1 (fr) 1981-12-11

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