FR2343408A7 - Electromagnetic warning horn with vibrating membrane - has working contact of interrupter switch carried by spring blade - Google Patents

Electromagnetic warning horn with vibrating membrane - has working contact of interrupter switch carried by spring blade

Info

Publication number
FR2343408A7
FR2343408A7 FR7637977A FR7637977A FR2343408A7 FR 2343408 A7 FR2343408 A7 FR 2343408A7 FR 7637977 A FR7637977 A FR 7637977A FR 7637977 A FR7637977 A FR 7637977A FR 2343408 A7 FR2343408 A7 FR 2343408A7
Authority
FR
France
Prior art keywords
spring blade
interrupter switch
working contact
vibrating membrane
warning horn
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
FR7637977A
Other languages
French (fr)
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Application granted granted Critical
Publication of FR2343408A7 publication Critical patent/FR2343408A7/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G10K9/15—Self-interrupting arrangements

Abstract

The electromagnetic horn has an excitation coil, an interrupter switch and an oscillating armature, attached to a membrane which is caused to vibrate. The interrupter switch comprises a fixed contact (25) and a working contact (24) carried by a spring blade (22). The frame (24) of the switch which carries the fixed contact (25) and the spring blade (22) each have a hole at one end, allowing them to be rivetted to the coil carrier (35) of the excitation coil. The hole (39) through one end of the spring blade (22) is surrounded by an insulating washer (40) with a central opening through which the rivet (26) passes. The washer (40) has a projecting notch (41) which fits into a corresponding aperture in an extension (35b) of the coil carrier (35).
FR7637977A 1976-03-05 1976-12-16 Electromagnetic warning horn with vibrating membrane - has working contact of interrupter switch carried by spring blade Expired FR2343408A7 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19767606613 DE7606613U1 (en) 1976-03-05 1976-03-05 ELECTROMAGNETIC SIGNAL HORN

Publications (1)

Publication Number Publication Date
FR2343408A7 true FR2343408A7 (en) 1977-09-30

Family

ID=6662774

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7637977A Expired FR2343408A7 (en) 1976-03-05 1976-12-16 Electromagnetic warning horn with vibrating membrane - has working contact of interrupter switch carried by spring blade

Country Status (2)

Country Link
DE (1) DE7606613U1 (en)
FR (1) FR2343408A7 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0036722B1 (en) * 1980-03-21 1985-06-05 LUCAS INDUSTRIES public limited company Electromagnetic horn
CN103707808A (en) * 2013-12-30 2014-04-09 哈尔滨固泰电子有限责任公司 Automobile loudspeaker public-address shell with vanes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0036722B1 (en) * 1980-03-21 1985-06-05 LUCAS INDUSTRIES public limited company Electromagnetic horn
CN103707808A (en) * 2013-12-30 2014-04-09 哈尔滨固泰电子有限责任公司 Automobile loudspeaker public-address shell with vanes
CN103707808B (en) * 2013-12-30 2016-06-08 哈尔滨固泰电子有限责任公司 Band vane-type car horn expands sound shell

Also Published As

Publication number Publication date
DE7606613U1 (en) 1977-08-25

Similar Documents

Publication Publication Date Title
US2486394A (en) Selective relay
FR2343408A7 (en) Electromagnetic warning horn with vibrating membrane - has working contact of interrupter switch carried by spring blade
US2360666A (en) Electric signaling apparatus
GB562461A (en) Improvements in electromagnetic relays
US2071384A (en) Vibratory motor device
US4975623A (en) Electromagnetic relay for transmitting operating sounds thereof
US3618080A (en) Low-energy input buzzer
US2063116A (en) Vibratory electrical motor
GB733216A (en) Electromagnetically operated electric vibrator
US2692380A (en) Ringer
US2506727A (en) Vibrator device
US3366766A (en) Snap-action switch for vibrating a resonant reed
US2357925A (en) Combined reed and relay device
US2501234A (en) Electric horn
US2689280A (en) Aperiodic vibrator
US2069583A (en) Warning signal device
JPS5520041A (en) Piezoelectric device
US3453570A (en) Vehicle horn programmer
CA1048822A (en) High efficiency buzzer
CH612035A5 (en) Device for limiting current strength
US2660639A (en) Electrical vibrator
US2240255A (en) Horn
US1664107A (en) Electric bell
US2634378A (en) Vibratory reed signaling device
US4145688A (en) Low cost buzzer