CH634455GA3 - - Google Patents

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Publication number
CH634455GA3
CH634455GA3 CH1415577A CH1415577A CH634455GA3 CH 634455G A3 CH634455G A3 CH 634455GA3 CH 1415577 A CH1415577 A CH 1415577A CH 1415577 A CH1415577 A CH 1415577A CH 634455G A3 CH634455G A3 CH 634455GA3
Authority
CH
Switzerland
Prior art keywords
biasing structure
magnetic biasing
plate
waterproof housing
waterproof
Prior art date
Application number
CH1415577A
Other languages
French (fr)
Other versions
CH634455B (en
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
Publication of CH634455B publication Critical patent/CH634455B/en
Application filed filed Critical
Publication of CH634455GA3 publication Critical patent/CH634455GA3/fr

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C21/00—Producing acoustic time signals by electrical means
    • G04C21/02—Constructional details
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
    • G10K9/13—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using electromagnetic driving means
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/18—Details, e.g. bulbs, pumps, pistons, switches or casings
    • G10K9/22—Mountings; Casings

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
  • Oscillators With Electromechanical Resonators (AREA)

Abstract

A waterproof acoustic vibrator for a timepiece and comprising a waterproof housing and a plate-like member having a magnetic portion. The plate-like member is mounted for oscillation opposite the waterproof housing and is maintained in a rest position by first magnetic biasing structure. Second magnetic biasing structure magnetically biases the plate-like member to oscillate and develop audible acoustic waves. The first magnetic biasing structure is a permanent magnet, and the second magnetic biasing structure is an electromagnet disposed within the waterproof housing.
CH1415577A 1976-11-19 1977-11-18 WATCH INCLUDING AN ELECTRO-ACOUSTIC VIBRATOR. CH634455B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13984676A JPS5364074A (en) 1976-11-19 1976-11-19 Wrist watch with electronic buzzer

Publications (2)

Publication Number Publication Date
CH634455B CH634455B (en)
CH634455GA3 true CH634455GA3 (en) 1983-02-15

Family

ID=15254876

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1415577A CH634455B (en) 1976-11-19 1977-11-18 WATCH INCLUDING AN ELECTRO-ACOUSTIC VIBRATOR.

Country Status (4)

Country Link
US (1) US4167849A (en)
JP (1) JPS5364074A (en)
CH (1) CH634455B (en)
DE (1) DE2749934A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH630220B (en) * 1978-11-10 Ebauches Sa WATCH INCLUDING A BOX CLOSED BY A GLASS AND AN ELECTRO-ACOUSTIC DEVICE.
JPS564087A (en) * 1979-06-26 1981-01-16 Citizen Watch Co Ltd Sound emitting body for electromagnetic watch
CH689346B5 (en) * 1995-05-03 1999-09-15 Smh Management Services Ag Device for acoustic alarm safety.
JP2008076380A (en) * 2006-08-24 2008-04-03 Seiko Epson Corp Timepiece
CH704199A2 (en) * 2010-12-10 2012-06-15 Montres Breguet Sa Striking mechanism for watch, has wheel operated, so that movable magnetic element comes near and opposite to fixed magnetic element, to vibrate gong by repetitive variation of magnetic repulsive force of elements, in striking mode
CH708095B1 (en) * 2013-05-28 2021-05-14 Montres Breguet Sa Ringing mechanism provided with means for selecting the vibratory mode of a gong.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH897168A4 (en) * 1968-06-17 1972-05-15
US3858389A (en) * 1971-02-18 1975-01-07 Suwa Seikosha Kk Electronic wrist watch with alarm
DE2334153C2 (en) * 1973-07-05 1975-05-22 Timex Corp., Waterbury, Conn. (V.St.A.) Electromagnetic buzzer for a watch

Also Published As

Publication number Publication date
DE2749934A1 (en) 1978-05-24
US4167849A (en) 1979-09-18
CH634455B (en)
JPS5364074A (en) 1978-06-08

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