EP0694824B1 - Pièce d'horlogerie comportant un transducteur électro-acoustique - Google Patents

Pièce d'horlogerie comportant un transducteur électro-acoustique Download PDF

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Publication number
EP0694824B1
EP0694824B1 EP95110745A EP95110745A EP0694824B1 EP 0694824 B1 EP0694824 B1 EP 0694824B1 EP 95110745 A EP95110745 A EP 95110745A EP 95110745 A EP95110745 A EP 95110745A EP 0694824 B1 EP0694824 B1 EP 0694824B1
Authority
EP
European Patent Office
Prior art keywords
piezo
plates
zone
timepiece
electric
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 - Lifetime
Application number
EP95110745A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0694824A1 (fr
Inventor
Jean-Pierre Mignot
Jacques Labourey
Michel Christen
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.)
Asulab AG
Original Assignee
Asulab 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 Asulab AG filed Critical Asulab AG
Publication of EP0694824A1 publication Critical patent/EP0694824A1/fr
Application granted granted Critical
Publication of EP0694824B1 publication Critical patent/EP0694824B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B21/00—Indicating the time by acoustic means
    • 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

  • a movement 3 is fixed to the box 2 by means which have not been shown because they can be similar to any of the many ways well known that can be used for this purpose.
  • the timepiece 1 also preferably comprises a seal, such as that shown in Figure 1 with the reference 12, attached to the periphery of the glass 8 and the middle of the box 2, for example by collage.
  • a seal such as that shown in Figure 1 with the reference 12 attached to the periphery of the glass 8 and the middle of the box 2, for example by collage.
  • this seal is shaped, when present, so that the glass 8 can be move easily relative to the box 2.
  • This bending deformation of the piezoelectric device 9 causes the appearance between its electrodes a detection signal, consisting of a voltage alternative having the same frequency as the acoustic wave which causes the ice to move 8.
  • the electrodes of the piezoelectric device 9 which have not been represented in FIG. 2 but of which examples will be described later, are arranged to way to create an alternating electric field in the piezoelectric material of element 13 when the excitation signal mentioned above is applied to them.
  • the element made of piezoelectric material 13 of the latter has two plates designated by 13a and 13b, both of which have a form general identical to that of element 13 and which are fixed to each other, for example by a layer of adhesive material, not shown, such as glue, epoxy resin, or the like.
  • the electrodes of the device 9, designated by the references 16a and 16b, have been deposited on the faces elements 13 by any of the various well-known methods in the matter.
  • these electrodes 16a and 16b are subjected to voltage alternative which constitutes the mentioned excitation signal above, the electric field created by this voltage has so also a direction perpendicular to the faces elements 13.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Electromechanical Clocks (AREA)
EP95110745A 1994-07-25 1995-07-10 Pièce d'horlogerie comportant un transducteur électro-acoustique Expired - Lifetime EP0694824B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH02338/94A CH686600B5 (fr) 1994-07-25 1994-07-25 Pièce d'horlogerie comportant un transducteur électro-acoustique.
CH2338/94 1994-07-25

Publications (2)

Publication Number Publication Date
EP0694824A1 EP0694824A1 (fr) 1996-01-31
EP0694824B1 true EP0694824B1 (fr) 1998-07-08

Family

ID=4231485

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95110745A Expired - Lifetime EP0694824B1 (fr) 1994-07-25 1995-07-10 Pièce d'horlogerie comportant un transducteur électro-acoustique

Country Status (8)

Country Link
US (1) US5604718A (enrdf_load_stackoverflow)
EP (1) EP0694824B1 (enrdf_load_stackoverflow)
JP (1) JP3450528B2 (enrdf_load_stackoverflow)
KR (1) KR100369856B1 (enrdf_load_stackoverflow)
CN (1) CN1049746C (enrdf_load_stackoverflow)
CH (1) CH686600B5 (enrdf_load_stackoverflow)
DE (1) DE69503324T2 (enrdf_load_stackoverflow)
TW (1) TW275672B (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6321868B1 (en) * 1999-06-23 2001-11-27 Asulab S.A. Watertight apparatus capable of being immersed and including an acoustic transducer
CH698533B1 (fr) * 2005-03-11 2009-08-31 Richemont Int Sa Dispositif de fixation d'au moins un timbre de sonnerie dans une pièce d'horlogerie et procédé de fixation d'au moins un timbre de sonnerie dans une pièce d'horlogerie.
EP2328044A1 (fr) 2009-11-25 2011-06-01 Rolex Sa Boîte de montre
EP2367077B1 (fr) 2010-03-16 2017-07-26 Montres Breguet SA Ensemble glace-lunette d'habillage pour pièce d'horlogerie et procédé d'assemblage
CA2930126C (en) 2015-05-21 2023-07-18 International Textile Group, Inc. Inner lining fabric
EP3623878A1 (en) 2018-09-13 2020-03-18 Richemont International S.A. Chiming mechanism with hammer striking the watch crystal

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE789336A (fr) * 1971-09-29 1973-01-15 Timex Corp Montre-reveil electronique
DE2334236C2 (de) * 1973-07-05 1975-07-10 Timex Corp., Waterbury, Conn. (V.St.A.) Akustischer Signalgeber für Uhren, insbesondere Armbanduhren
GB1499575A (en) * 1974-09-11 1978-02-01 Seiko Instr & Electronics Electronic buzzers
US4321699A (en) * 1976-09-17 1982-03-23 Ricoh Watch Company, Limited Wrist watch with alarm
CH626497B (fr) * 1977-11-07 Ebauches Sa Montre munie d'un resonateur forme par sa glace soumise a l'action d'un transducteur.
JPS5661897A (en) * 1979-10-24 1981-05-27 Hitachi Ltd Display unit
JPS56131979A (en) * 1980-03-19 1981-10-15 Hitachi Ltd Piezoelectric material for transparent vibrator and transparent vibrator
JPS5816294A (ja) * 1981-07-23 1983-01-29 セイコーインスツルメンツ株式会社 圧電ブザー付電子機器

Also Published As

Publication number Publication date
CH686600B5 (fr) 1996-11-15
DE69503324D1 (de) 1998-08-13
JP3450528B2 (ja) 2003-09-29
JPH08123427A (ja) 1996-05-17
TW275672B (enrdf_load_stackoverflow) 1996-05-11
HK1012448A1 (en) 1999-07-30
CH686600GA3 (fr) 1996-05-15
US5604718A (en) 1997-02-18
CN1049746C (zh) 2000-02-23
CN1129820A (zh) 1996-08-28
EP0694824A1 (fr) 1996-01-31
DE69503324T2 (de) 1999-03-04
KR100369856B1 (ko) 2003-04-07
KR960006465A (ko) 1996-02-23

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