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AU2001230230A1 - Signal-horn - Google Patents

Signal-horn

Info

Publication number
AU2001230230A1
AU2001230230A1 AU2001230230A AU3023001A AU2001230230A1 AU 2001230230 A1 AU2001230230 A1 AU 2001230230A1 AU 2001230230 A AU2001230230 A AU 2001230230A AU 3023001 A AU3023001 A AU 3023001A AU 2001230230 A1 AU2001230230 A1 AU 2001230230A1
Authority
AU
Australia
Prior art keywords
length
signal
section
representing
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.)
Abandoned
Application number
AU2001230230A
Inventor
Attilio Granziera
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.)
Stebel SpA
Original Assignee
Stebel SpA
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 Stebel SpA filed Critical Stebel SpA
Publication of AU2001230230A1 publication Critical patent/AU2001230230A1/en
Abandoned 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
    • G10K9/18—Details, e.g. bulbs, pumps, pistons, switches or casings
    • G10K9/20—Sounding members

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Eye Examination Apparatus (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Surgical Instruments (AREA)
  • Waveguide Aerials (AREA)

Abstract

The invention relates to a signal-horn (1) of electromagnetic type comprising a generator (2) of sound waves having an oscillating membrane (4) actuated by an electromechanical propulsor unit (5) coupled to an acoustic amplifier (3) consisting of a duct (6) wound as a volute in which there is a first length (7) with generally constant section (8) provided with an inlet (9) for the sound signal to be amplified and a second length (10) with variable section (11) according to a conical exponential rule ending with an outlet (12) for the amplified sound signal. The ratio of the figure representing the volume (13) defined by the oscillating membrane (4) between the two points of maximum elongation (14, 15) and the figure representing the area of a cross section (8) of the first length is a number comprised between 16 and 20.
AU2001230230A 2000-02-04 2001-02-02 Signal-horn Abandoned AU2001230230A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT2000VI000026A IT1315183B1 (en) 2000-02-04 2000-02-04 SOUNDER
ITVI200A000026 2000-02-04
PCT/EP2001/001091 WO2001057848A1 (en) 2000-02-04 2001-02-02 Signal-horn

Publications (1)

Publication Number Publication Date
AU2001230230A1 true AU2001230230A1 (en) 2001-08-14

Family

ID=11461147

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001230230A Abandoned AU2001230230A1 (en) 2000-02-04 2001-02-02 Signal-horn

Country Status (9)

Country Link
US (1) US6754360B2 (en)
EP (1) EP1256110B1 (en)
AT (1) ATE306707T1 (en)
AU (1) AU2001230230A1 (en)
CZ (1) CZ20022954A3 (en)
DE (1) DE60113966T2 (en)
ES (1) ES2250348T3 (en)
IT (1) IT1315183B1 (en)
WO (1) WO2001057848A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040047485A1 (en) * 2002-07-16 2004-03-11 Stewart Sherrit Folded horns for vibration actuators
US7617794B2 (en) * 2007-03-30 2009-11-17 Nissan Technical Center North America, Inc. One piece horn cover
JP5276956B2 (en) * 2008-11-13 2013-08-28 浜名湖電装株式会社 Electric horn
TWI645116B (en) * 2017-09-20 2018-12-21 中原大學 Fan noise controlling system
US11881204B2 (en) * 2020-07-30 2024-01-23 Ford Global Technologies, Llc Dual-tone horn assemblies and methods of use

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1791198A1 (en) * 1968-09-28 1971-11-18 Bosch Gmbh Robert Electromagnetically operated fanfare, especially for motor vehicles
FR2025259A5 (en) * 1969-03-03 1970-09-04 Espanola Magnetos Fab
ES379241A1 (en) * 1970-04-30 1972-10-16 Espanola Magnetos Fab Automobile vehicles electroacoustical warning devices
IT955867B (en) * 1972-05-26 1973-09-29 Magneti Marelli Spa ELECTROMAGNE TICO ACOUSTIC HORN PARTICULARLY FOR COLI CARS
US3886546A (en) * 1973-04-13 1975-05-27 Nippon Denso Co Electric horn
FR2400744A1 (en) * 1977-08-19 1979-03-16 Beltrame Leonardo Electromagnetically operated vehicle horn - has solenoid driven diaphragm communicating via central aperture with helical expansion chamber
JPS5920238B2 (en) * 1980-10-30 1984-05-11 松下電器産業株式会社 horn speaker

Also Published As

Publication number Publication date
DE60113966D1 (en) 2005-11-17
DE60113966T2 (en) 2006-07-27
US6754360B2 (en) 2004-06-22
CZ20022954A3 (en) 2003-02-12
IT1315183B1 (en) 2003-02-03
ES2250348T3 (en) 2006-04-16
EP1256110B1 (en) 2005-10-12
WO2001057848A1 (en) 2001-08-09
EP1256110A1 (en) 2002-11-13
ATE306707T1 (en) 2005-10-15
US20030136328A1 (en) 2003-07-24
ITVI20000026A1 (en) 2001-08-04

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