JPS5784382A - Electronic watch with piezoelectric buzzer - Google Patents

Electronic watch with piezoelectric buzzer

Info

Publication number
JPS5784382A
JPS5784382A JP55159950A JP15995080A JPS5784382A JP S5784382 A JPS5784382 A JP S5784382A JP 55159950 A JP55159950 A JP 55159950A JP 15995080 A JP15995080 A JP 15995080A JP S5784382 A JPS5784382 A JP S5784382A
Authority
JP
Japan
Prior art keywords
piezoelectric buzzer
electronic watch
frequency
khz
carried
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.)
Granted
Application number
JP55159950A
Other languages
Japanese (ja)
Other versions
JPH0117119B2 (en
Inventor
Mitsuru Toyoda
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP55159950A priority Critical patent/JPS5784382A/en
Priority to GB8104459A priority patent/GB2071883B/en
Priority to CH174481A priority patent/CH646578GA3/fr
Publication of JPS5784382A publication Critical patent/JPS5784382A/en
Priority to US06/546,069 priority patent/US4459037A/en
Priority to HK884/85A priority patent/HK88485A/en
Publication of JPH0117119B2 publication Critical patent/JPH0117119B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C21/00—Producing acoustic time signals by electrical means
    • G04C21/02—Constructional details

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)

Abstract

PURPOSE:To reduce a difference of sound pressure in watches between when carried and when not carried by setting a intrinsic frequency of a back in a range of 5.5kHz to 7 kHz, in a piezoelectric buzzer having a piezoelectric element bonded to the back. CONSTITUTION:A back 12 of a watch is formed with a circular groove to make a part of the back thinner at a position except for that where a piezoelectric element 11 is bonded. The provision of the groove causes a natural frequency of the back to be lowered and this frequency is set in a range of 5.5 kHz to 7kHz.
JP55159950A 1980-03-13 1980-11-13 Electronic watch with piezoelectric buzzer Granted JPS5784382A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP55159950A JPS5784382A (en) 1980-11-13 1980-11-13 Electronic watch with piezoelectric buzzer
GB8104459A GB2071883B (en) 1980-03-13 1981-02-12 Watch having a piezo-electric buzzer
CH174481A CH646578GA3 (en) 1980-03-13 1981-03-13
US06/546,069 US4459037A (en) 1980-03-13 1983-10-27 Wristwatch with piezoelectric buzzer
HK884/85A HK88485A (en) 1980-03-13 1985-11-07 Watch having a piezo-electric buzzer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55159950A JPS5784382A (en) 1980-11-13 1980-11-13 Electronic watch with piezoelectric buzzer

Publications (2)

Publication Number Publication Date
JPS5784382A true JPS5784382A (en) 1982-05-26
JPH0117119B2 JPH0117119B2 (en) 1989-03-29

Family

ID=15704696

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55159950A Granted JPS5784382A (en) 1980-03-13 1980-11-13 Electronic watch with piezoelectric buzzer

Country Status (1)

Country Link
JP (1) JPS5784382A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012118067A (en) * 2010-12-02 2012-06-21 Montres Breguet Sa Acoustic membrane for timepiece with music box or bell tolling mechanism
JP2012118068A (en) * 2010-12-02 2012-06-21 Montres Breguet Sa Acoustic radiating membrane for music box or striking watch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012118067A (en) * 2010-12-02 2012-06-21 Montres Breguet Sa Acoustic membrane for timepiece with music box or bell tolling mechanism
JP2012118068A (en) * 2010-12-02 2012-06-21 Montres Breguet Sa Acoustic radiating membrane for music box or striking watch

Also Published As

Publication number Publication date
JPH0117119B2 (en) 1989-03-29

Similar Documents

Publication Publication Date Title
JPS5333613A (en) Microphone and its manufacture
JPS5784382A (en) Electronic watch with piezoelectric buzzer
GB2071883B (en) Watch having a piezo-electric buzzer
JPS56128479A (en) Electronic watch with piezoelectric buzzer
JPS53146665A (en) Watch structure with alarm
JPS5348773A (en) Wristwatch
JPS536071A (en) Sound producing wristwatch
GB1525818A (en) Alarm generating apparatus
JPS5334563A (en) Portable electronic device
JPS5344061A (en) Electronic watch with alarm
CH635222B (en) ELECTRONIC WATCH PART, IN PARTICULAR ELECTRONIC BRACELET WATCH, EQUIPPED WITH AN ALARM DEVICE.
JPS5312659A (en) Electronic watch
JPS5334564A (en) Wristwatch with electronic buzzer
JPS5786776A (en) Construction to connect watch band to case of wrist watch
JPS5313956A (en) Electronic wristwatch with buzzer
JPS5346774A (en) Electronic wristwatch
JPS57186187A (en) Electronic timepiece with alarm
JPS5377672A (en) Alarm watch
JPS5352461A (en) Alarm sound generator for electronic wristwatches
JPS5333667A (en) Time regulating element for electronic watches
JPS53136990A (en) Composite piezoelectric oscillator
JPS5357070A (en) Electronic watch
JPS5364501A (en) Acoustic device
JPS5269596A (en) Quartz crystal oscillator
JPS5387266A (en) Electronic watch