EP0337067A2 - Avertisseur sonore, en particulier pour véhicules - Google Patents

Avertisseur sonore, en particulier pour véhicules Download PDF

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Publication number
EP0337067A2
EP0337067A2 EP89102306A EP89102306A EP0337067A2 EP 0337067 A2 EP0337067 A2 EP 0337067A2 EP 89102306 A EP89102306 A EP 89102306A EP 89102306 A EP89102306 A EP 89102306A EP 0337067 A2 EP0337067 A2 EP 0337067A2
Authority
EP
European Patent Office
Prior art keywords
channel
signal horn
funnel
opening
horn according
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
EP89102306A
Other languages
German (de)
English (en)
Other versions
EP0337067A3 (en
EP0337067B1 (fr
Inventor
Werner Kukuk
Stefan Gepfert
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.)
Hella GmbH and Co KGaA
Original Assignee
Hella KGaA Huek and 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 Hella KGaA Huek and Co filed Critical Hella KGaA Huek and Co
Publication of EP0337067A2 publication Critical patent/EP0337067A2/fr
Publication of EP0337067A3 publication Critical patent/EP0337067A3/de
Application granted granted Critical
Publication of EP0337067B1 publication Critical patent/EP0337067B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G10K9/22—Mountings; Casings

Definitions

  • the invention relates to a signal horn, in particular for motor vehicles, with a membrane which is moved by a drive and which acts on a pressure chamber, with a funnel which connects to the pressure chamber, which is wound up parallel to the membrane and which ends in a sound outlet opening and means for connecting a portion of the bugle to the surrounding air.
  • Such a bugle is known from DE-AS 12 56 115.
  • the known bugle has disadvantages, however, because no measures are specified to free the horn of the bugle from water, which can form due to condensation in the hopper or due to a surge of water, for. B. when driving the motor vehicle through rain through the sound outlet into the funnel.
  • water in the funnel impedes the sound transformation of the funnel and can thus lead to a sound that is attenuated in volume through to a falsification of the sound, or even to the complete failure of the signal horn.
  • the object of the invention is to create a signal horn in which the sound emitted by water in the funnel is avoided.
  • the funnel has a substantially downward opening at a turn lying at the lowest point for a given mounting position of the signal horn, to which an essentially downward-pointing channel adjoins.
  • an essentially downward-pointing channel is also provided, which connects to the opening.
  • the channel is an open tube, which is quasi "open" acoustically only for its resonant frequencies, but acts like an acoustic closure for the frequency ranges in between. In these intermediate areas there is therefore no appreciable weakening of the frequency components conducted within the funnel.
  • the signal horn according to the invention thus has the advantage over the known one that water located in the funnel can run out of the funnel via the opening and the channel and so that an adverse impairment of the sound by water in the funnel is avoided.
  • the channel can prevent the influences of the opening in certain frequency ranges that impair the sound of the signal horn.
  • a channel alone is required so that the bugle according to the invention with the above. acoustic advantages can be built easily and inexpensively.
  • the length of the channel dependent on the frequency position of the harmonics generated by the signal horn.
  • the sound of the bugle is composed of a number of harmonics.
  • the lowest harmonic is called the fundamental and the frequencies of the higher harmonics are an even multiple of the fundamental.
  • the length of the channel can then be selected depending on the location of these frequencies. This takes advantage of the fact that the channel has the acoustic properties of an open tube that draws vibrational energy from the funnel in its resonance frequencies, but blocks this energy transport in the frequency ranges in between. This fact takes advantage of the invention and the length of the channel is advantageously chosen such that the resonance frequencies of the tube do not match in frequency with the harmonics generated by the signal horn, but in between, but preferably above the volume-determining harmonics.
  • horns with funnels When used in motor vehicles, horns with funnels are used, the volume-determining harmonics of which are between 1000 ... 3000 Hz. With signal horns of this type, it has proven to be particularly advantageous if the length of the channel is approximately 2 to 6 cm. This applies in particular to channel cross sections of 3 ... 9 square millimeters.
  • the cross-sectional area of the opening is larger than 3 square millimeters.
  • a quick drain of the water from the funnel is guaranteed, but the effective acoustic effectiveness of the channel decreases due to the effects of the mouth.
  • a maximum cross-sectional area of 9 square millimeters has proven to be the upper limit.
  • the cross-sectional area of the channel is approximately equal to the cross-sectional area of the opening and if the channel and / or opening have a round cross section.
  • the channel extends from the deepest turn to the sound outlet opening, because with the usually in the Motor vehicle used horns the length of the channel is then in the advantageous range of about 2 ... 6 cm.
  • the single figure shows a signal horn according to the invention which is attached to the motor vehicle with the membrane plane perpendicular to the direction of travel and whose sound outlet opening is arranged parallel to the membrane plane.
  • the sound outlet opening (5) thus hangs down and points to the road on which the motor vehicle is moving.
  • a funnel (1) is shown, which connects to a pressure chamber, which is not recognizable in the figure behind the funnel.
  • the membrane also not shown, is also located behind the funnel, approximately parallel to the plane of the drawing.
  • the drive of the horn according to the invention is also covered by the funnel (1).
  • the funnel (1) opens into a sound outlet opening (5) and has a downward and deepest turn (2) which has an essentially downward opening (3).
  • the opening (3) merges into an essentially downward-pointing channel (4) which is arranged in such a way that the channel (4) extends from the deepest winding (2) to the sound outlet opening (5).
  • the signal horn according to the invention is fastened to the body of the motor vehicle (not shown in the figure) by a fastening tab (6).
  • the measure according to the invention can thus reliably prevent the sound emitted by the signal horn according to the invention from being distorted by water in the funnel (1).

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Traffic Control Systems (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Elimination Of Static Electricity (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
EP89102306A 1988-04-12 1989-02-10 Avertisseur sonore, en particulier pour véhicules Expired - Lifetime EP0337067B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3812096 1988-04-12
DE3812096A DE3812096A1 (de) 1988-04-12 1988-04-12 Signalhorn, insbesondere fuer kraftfahrzeuge

Publications (3)

Publication Number Publication Date
EP0337067A2 true EP0337067A2 (fr) 1989-10-18
EP0337067A3 EP0337067A3 (en) 1990-02-28
EP0337067B1 EP0337067B1 (fr) 1994-06-01

Family

ID=6351788

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89102306A Expired - Lifetime EP0337067B1 (fr) 1988-04-12 1989-02-10 Avertisseur sonore, en particulier pour véhicules

Country Status (6)

Country Link
EP (1) EP0337067B1 (fr)
AT (1) ATE106589T1 (fr)
DD (1) DD283874A5 (fr)
DE (1) DE3812096A1 (fr)
ES (1) ES2053827T3 (fr)
HK (1) HK145694A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993009530A1 (fr) * 1991-10-30 1993-05-13 Gyoergy Laszlo Corne pour supporters sportifs
FR2769395A1 (fr) * 1997-10-02 1999-04-09 Bosch Gmbh Robert Appareil delivrant des signaux acoustiques
US7980193B1 (en) * 2009-06-09 2011-07-19 Brunswick Corporation Pressure lock marine horn

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1036715A (en) * 1961-10-24 1966-07-20 Service Electric Company Ltd Sound producing apparatus
DE1256115B (de) * 1962-07-05 1967-12-07 Villmeca Sa Elektromagnetische Hupe
DE2501584A1 (de) * 1974-03-25 1975-10-02 Domenico Frigo Pneumatisch betriebene akustische signalvorrichtung mit einander zugeordneten, komplanaren und schneckenfoermig verlaufenden signalhoernern
US4212001A (en) * 1976-08-31 1980-07-08 Nippondenso Co., Ltd. Electric horn

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2689543A (en) * 1952-04-22 1954-09-21 Louis E Lemmon Motor vehicle horn guard
DE2904265A1 (de) * 1979-02-05 1980-08-07 Westfaelische Metall Industrie Verfahren zum verbinden eines metallteils und eines kunststoffteils, insbesondere zum herstellen eines elektromagnetischen signalgebers, insbesondere eines horns fuer kraftfahrzeuge
US4433750A (en) * 1981-02-23 1984-02-28 Sparton Corporation Synthetic horn projector with metal insert
DE3641620C1 (en) * 1986-12-05 1988-06-30 Hella Kg Hueck & Co Signal transmitter for motor vehicles, in particular electropneumatic horn

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1036715A (en) * 1961-10-24 1966-07-20 Service Electric Company Ltd Sound producing apparatus
DE1256115B (de) * 1962-07-05 1967-12-07 Villmeca Sa Elektromagnetische Hupe
DE2501584A1 (de) * 1974-03-25 1975-10-02 Domenico Frigo Pneumatisch betriebene akustische signalvorrichtung mit einander zugeordneten, komplanaren und schneckenfoermig verlaufenden signalhoernern
US4212001A (en) * 1976-08-31 1980-07-08 Nippondenso Co., Ltd. Electric horn

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993009530A1 (fr) * 1991-10-30 1993-05-13 Gyoergy Laszlo Corne pour supporters sportifs
US5460116A (en) * 1991-10-30 1995-10-24 Gyoergy; Laszlo Horn for sportfans
FR2769395A1 (fr) * 1997-10-02 1999-04-09 Bosch Gmbh Robert Appareil delivrant des signaux acoustiques
US7980193B1 (en) * 2009-06-09 2011-07-19 Brunswick Corporation Pressure lock marine horn

Also Published As

Publication number Publication date
ES2053827T3 (es) 1994-08-01
HK145694A (en) 1994-12-30
EP0337067A3 (en) 1990-02-28
DE3812096A1 (de) 1989-10-26
EP0337067B1 (fr) 1994-06-01
DD283874A5 (de) 1990-10-24
ATE106589T1 (de) 1994-06-15
DE3812096C2 (fr) 1990-06-21

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