KR910007845B1 - Electromagnetic sounding device - Google Patents

Electromagnetic sounding device

Info

Publication number
KR910007845B1
KR910007845B1 KR888805032A KR880005032A KR910007845B1 KR 910007845 B1 KR910007845 B1 KR 910007845B1 KR 888805032 A KR888805032 A KR 888805032A KR 880005032 A KR880005032 A KR 880005032A KR 910007845 B1 KR910007845 B1 KR 910007845B1
Authority
KR
South Korea
Prior art keywords
sounding device
electromagnetic sounding
electromagnetic
sounding
Prior art date
Application number
KR888805032A
Other languages
Korean (ko)
Other versions
KR880014833A (en
Inventor
Saburo Kaido
Original Assignee
Nippon Electric Co
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 Nippon Electric Co filed Critical Nippon Electric Co
Publication of KR880014833A publication Critical patent/KR880014833A/en
Application granted granted Critical
Publication of KR910007845B1 publication Critical patent/KR910007845B1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R13/00—Transducers having an acoustic diaphragm of magnetisable material directly co-acting with electromagnet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/04—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with electromagnetism
    • B06B1/045—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with electromagnetism using vibrating magnet, armature or coil system
    • 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
KR888805032A 1987-05-01 1988-04-30 Electromagnetic sounding device KR910007845B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP?62-66944 1987-05-01
JP1987066944U JPH0452797Y2 (en) 1987-05-01 1987-05-01

Publications (2)

Publication Number Publication Date
KR880014833A KR880014833A (en) 1988-12-24
KR910007845B1 true KR910007845B1 (en) 1991-10-02

Family

ID=13330627

Family Applications (1)

Application Number Title Priority Date Filing Date
KR888805032A KR910007845B1 (en) 1987-05-01 1988-04-30 Electromagnetic sounding device

Country Status (3)

Country Link
EP (1) EP0289264B1 (en)
JP (1) JPH0452797Y2 (en)
KR (1) KR910007845B1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5287084A (en) * 1991-02-01 1994-02-15 Star Micronics Co., Ltd. Thin buzzer
JPH05209964A (en) * 1992-01-30 1993-08-20 Shimadzu Corp Emission ct device
JP2728622B2 (en) * 1993-05-04 1998-03-18 スター精密株式会社 Electroacoustic transducer
JP2001125576A (en) * 1999-10-22 2001-05-11 Citizen Electronics Co Ltd Sound producing body and electonic apparatus mounted with sound producing body
KR20030021288A (en) * 2001-09-05 2003-03-15 혜성산업주식회사 Receving unit for terminal
KR20020024186A (en) * 2002-01-31 2002-03-29 황상문 Receiving unit for the mobile phone
CN112634849B (en) * 2020-12-17 2022-01-21 新沂市承翔电子有限公司 Novel dustproof and waterproof electronic buzzer

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2402288A1 (en) * 1974-01-18 1975-07-24 Fichter Kg Electronic buzzer for alarm clocks - has diaphragm separating resonance space from magnet cavity
JPS55116399U (en) * 1979-02-13 1980-08-16
US4251807A (en) * 1979-03-08 1981-02-17 Pickering & Company Miniature buzzer
JPS56111893A (en) * 1980-02-12 1981-09-03 Seiko Instr & Electronics Vibration plate for electromagnetic buzzar
JPS55138698U (en) * 1980-03-26 1980-10-02
US4413253A (en) * 1981-02-19 1983-11-01 Alan Hofer Miniature sounder with double tuned cavity
JPS59131797U (en) * 1983-02-22 1984-09-04 株式会社三協精機製作所 electromagnetic sound device

Also Published As

Publication number Publication date
JPS63173293U (en) 1988-11-10
EP0289264A1 (en) 1988-11-02
EP0289264B1 (en) 1992-06-17
JPH0452797Y2 (en) 1992-12-11
KR880014833A (en) 1988-12-24

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Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20040924

Year of fee payment: 14

LAPS Lapse due to unpaid annual fee