EP0446139B1 - Avertisseur sonore à conduit de respiration, notamment pour véhicules automobiles - Google Patents

Avertisseur sonore à conduit de respiration, notamment pour véhicules automobiles Download PDF

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Publication number
EP0446139B1
EP0446139B1 EP91400630A EP91400630A EP0446139B1 EP 0446139 B1 EP0446139 B1 EP 0446139B1 EP 91400630 A EP91400630 A EP 91400630A EP 91400630 A EP91400630 A EP 91400630A EP 0446139 B1 EP0446139 B1 EP 0446139B1
Authority
EP
European Patent Office
Prior art keywords
casing
duct
hole
alarm
alarm 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.)
Expired - Lifetime
Application number
EP91400630A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0446139A1 (fr
Inventor
Patrick Lahaye
Claude Decorde
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.)
Compagnie Europeenne de Composants Electroniques LCC CICE
Original Assignee
Klaxon SA
Compagnie Europeenne de Composants Electroniques LCC CICE
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
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Application filed by Klaxon SA, Compagnie Europeenne de Composants Electroniques LCC CICE filed Critical Klaxon SA
Publication of EP0446139A1 publication Critical patent/EP0446139A1/fr
Application granted granted Critical
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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 present invention relates to audible warning devices, in particular for motor vehicles, of the type comprising a hollow housing closed in leaktight manner by a membrane and carrying an electromagnetic vibration generator provided, inside the housing, with a coil carcass carrying a coil.
  • the horn will heat up during operation.
  • This hole can be calibrated and form by itself means of protection against the penetration of water.
  • a filter can be added to the hole protecting the alarm against the ingress of water.
  • This hole is made by means of a part which is formed by injection of plastic material into the housing, with protection by a sheath or a tube.
  • the skirt of the housing is extended towards the outside by a tube capped by a protective cap (see also FR-A-2,517,451).
  • Document FR-A-2 279 187 provides, for the protection of the breathing hole of the housing, an external cover which communicates with the external atmosphere through a labyrinth orifice.
  • Document FR-A-1 335 125 provides an orifice which opens into the air in a place protected from external spraying by a wall forming a screen.
  • the object of the present invention is to overcome the drawbacks of known devices and therefore to create, in a simple and economical manner, a breathing system of simple and robust manufacture, of flawless operation and little fear of false manipulations, while providing d 'other advantages.
  • an alarm of the above-mentioned type is characterized in that the carcass has, for communication with the hole in the housing, at least one duct of smaller section to allow the passage of air, said duct being provided with means to prevent water from entering the interior of the alarm.
  • the housing and the carcass can be produced in different production units.
  • the duct is formed by means of fixing ears, which the carcass presents.
  • the horn for motor vehicles also known as an electroacoustic signaling horn, comprises a hollow housing 1 for attachment to a fixed support delimiting a cavity closed in leaktight manner by a membrane 50.
  • the housing 1 carries, inside its cavity, an electromagnetic vibration generator with an excitation coil 20 carried by a coil carcass 3 while being wound thereon.
  • the carcass 3 is centrally hollow by being mounted on a fixed core 21.
  • a plunger core 22 is allowed to penetrate inside the carcass to approach the fixed core 21.
  • the plunger core 22 is integral with the membrane 50 and forms with it a mobile assembly.
  • the electromagnetic vibration generator forms an excitation device which imparts movement to the membrane so that the volume of the cavity delimited by the housing 1 varies.
  • the movable membrane 50 - plunger core 22 assembly is interposed between a metal receiving plate 41 and a flange 10 of the housing with the addition of a seal.
  • the plate 41 forms a cover for a hollow roof 40, made of plastic, provided with a cavity in communication with a central recess of the platinum and a projecting mouthpiece in the open air.
  • the pavilion 40 has a shoulder opening, while the plate 41 secures the housing 1 and the membrane 50, thanks to its folded edge on the membrane 50 and the housing 1.
  • the plate is glued to the roof, as described in document FR-A-2 335 903 and comes into contact with the shoulder opening of the roof.
  • the collar 10 is linked to the membrane 50 by a ring 61 set on the collar 10.
  • the membrane 50 is integral with a disc 60, disposed beyond the ring 61, for the formation of a resonator.
  • the movement of the membrane varies the volume defined by the membrane 50 and the plate 41 for producing a sound.
  • the plunger core 22 secured to the membrane 50 strikes the fixed core 21 for propagation of a sound wave amplified by the disc 60.
  • the housing 1 is annular being made of stamped sheet metal and comprises, in addition to the flange 10, forming a radial rim directed opposite the axis of the assembly, a first tubular portion delimited by an axial skirt 11 connecting to the flange 10, an annular transverse wall 12 connecting to the skirt 11 and carrying a second annular portion of smaller diameter delimited by an axial skirt 13, closed by a transverse bottom 14.
  • the coil 20 is housed with its carcass 3 inside the skirt 13, the carcass 3 bears on the bottom 14 open centrally for the passage of a threaded part 15 secured to the fixed core 21 of larger diameter.
  • the core 21 is supported on the bottom 14 inside the housing 1 and serves as an annular centering device for the carcass 3, while the part 15 is used for fixing the housing 1 to an elastic tongue (not visible) integral with a fixed part of the vehicle.
  • the carcass 3 has for this a main part 31, on the one hand, centrally hollow to cooperate in centering with the core 21 and, on the other hand, with a U-shaped section for mounting the coil 20.
  • the hollow housing 1 has a hole 6 for connecting the interior of the housing 1 with the exterior and preventing the movement of the membrane 50 from being altered by an overpressure or a depression prevailing in the housing.
  • the carcass 3 has, for communication with the hole 6 of the housing 1, at least one cylindrical duct 2 of smaller diameter to allow the passage of air to the interior of the housing 1, said duct 2 being provided with means to prevent the penetration of water inside the alarm.
  • the wall 12 of the housing 1 which is drilled to form the hole in an area clear of that carrying the supply terminals 23, in the vicinity of the latter and of one of the attachment points of the coil. as described below.
  • the carcass 3 advantageously made of plastic, has two fixing lugs 32 and 33 secured to a radial extension 35 extending in excess thickness inside the housing 1 in contact with the wall 12 and connecting to the end of the main part 31 opposite the bottom 14 by a connection leave 37.
  • the extension 35 with its ears 32, 33 forms a fork with two radial arms carrying the ears which are not identical to each other. Both are used to fix the carcass 3 to the housing 1, but the ear 32 is also used for fixing the blade 24, which extends radially over a great height on either side of the axis of symmetry and radially beyond the carcass 3 (FIG. 3 ), while the ear 33 has a protuberance 36 or protuberance.
  • conduit 2 is made, which is here opposite the hole 6, the center of the hole being disposed on the axis of the conduit 2.
  • This conduit 2 is connected to a recess 7 formed in the face of the protuberance 36 adjacent to the wall 12, while the other face of the protuberance is hollowed out for housing a filter 4 provided with pores and preventing the penetration of the and moisture in the housing 1.
  • the conduit 2 here extends parallel to the axis of the assembly and therefore opens into the recess 7 and into the filter 4 held in place, for example, by high frequency welding, gluing, or simple pinching.
  • the recess 7 has a diameter greater than that of the hole 6 and serves as a trap for impurities.
  • An O-ring 5 is mounted in the recess 7, being placed between the carcass 3 and the wall 12 in order to seal between these two components and to prevent corrosion.
  • the filter 4 can be placed in any location of the duct 2, for example at the entrance of the latter into the cavity 7.
  • the carcass 3 is subjected to vibrations, owing to the fact that it is penetrated by the core 22 and that it carries the vibrating blade 24, so that this is also favorable for unclogging the conduit 2.
  • the fixing member 66 here a rivet or alternatively a bolt, passing through the ear 33, by means of a part 62 mounted engaged in a hole in the ear 32 and having a shoulder part in contact with the external face of the wall 12.
  • This piece 62 blocks the head of the rivet thanks to a lip favorable to a good seal.
  • the end of the rivet 66 is crimped in contact with a metal distribution washer 63 bearing on the face of the ear 33 furthest from the wall 12.
  • the hole 6 does not need to be calibrated with precision and the conduit 2 can be produced with precision independently of the housing, in a unit of different production.
  • the present invention is not limited to the example of embodiment described, in particular the duct 2 can be placed at any location on the carcass, in particular in the radial extension 35 proper, the hole 6 being moved accordingly.
  • the carcass may have an additional ear specific for the conduit, and the radial extension 35 may be devoid of fixing ears.
  • the duct 2 the length of which depends in particular on the various applications, which can be calibrated to let air pass but not water and thus form by itself means to prevent the penetration of water inside the horn.
  • the recess 7 can be deleted.
  • This duct can open into a coaxial duct of larger diameter for mounting, for example, the filter 4 which is then closer to the wall 12.
  • the hole 6 can be offset radially with respect to the duct 2 and be connected to the latter by means of a recess similar to the recess 7 extended radially as a result.
  • the conduit 2 can be inclined relative to the axis of the assembly.
  • the carcass may have tubing entering the hole in the housing.
  • the carcass may have an axial rim opposite the skirt 11 in which the duct 2 is formed.
  • the duct 2 instead of having a cylindrical bore, may have a section of any shape, said section having a size smaller than that of the hole 6.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Casings For Electric Apparatus (AREA)
  • Emergency Alarm Devices (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Measuring Fluid Pressure (AREA)
  • Reciprocating Pumps (AREA)
EP91400630A 1990-03-08 1991-03-07 Avertisseur sonore à conduit de respiration, notamment pour véhicules automobiles Expired - Lifetime EP0446139B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9002927 1990-03-08
FR9002927A FR2659476A1 (fr) 1990-03-08 1990-03-08 Avertisseur sonore a conduit de respiration, notamment pour vehicules automobiles.

Publications (2)

Publication Number Publication Date
EP0446139A1 EP0446139A1 (fr) 1991-09-11
EP0446139B1 true EP0446139B1 (fr) 1994-06-15

Family

ID=9394507

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91400630A Expired - Lifetime EP0446139B1 (fr) 1990-03-08 1991-03-07 Avertisseur sonore à conduit de respiration, notamment pour véhicules automobiles

Country Status (5)

Country Link
US (1) US5270680A (es)
EP (1) EP0446139B1 (es)
DE (1) DE69102458T2 (es)
ES (1) ES2055967T3 (es)
FR (1) FR2659476A1 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4314242C1 (de) * 1993-04-30 1994-04-07 Hella Kg Hueck & Co Elektromagnetisches Signalhorn
US7387079B2 (en) * 2006-03-23 2008-06-17 Honda Motor Co., Ltd. Automatic horn shutter
US8152633B2 (en) * 2008-11-05 2012-04-10 Aspyr Media, Inc. Providing game content based on wireless signals
DE102016124006A1 (de) * 2016-12-11 2018-06-14 Eugen Forschner Gmbh Verfahren und Vorrichtung zur Herstellung eines Spulenkörpers und mittels dieser hergestellter Spulenkörper

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1335125A (fr) * 1962-07-05 1963-08-16 Vilmeca Avertisseur perfectionné pour automobile
DE2433961C3 (de) * 1974-07-15 1980-10-23 Robert Bosch Gmbh, 7000 Stuttgart Signalhorn, insbesondere für Kraftfahrzeuge
US4441099A (en) * 1981-02-23 1984-04-03 Sparton Corporation Diaphragm horn
DE3240578A1 (de) * 1981-11-30 1983-06-09 Leonardo Arcugnano Vicenza Beltrame Verbesserung am einbau des joches bei elektromagnetischen hoermeldern
US4763109A (en) * 1986-01-02 1988-08-09 Smith Robert E Acoustical vehicle horn with improved vent

Also Published As

Publication number Publication date
ES2055967T3 (es) 1994-09-01
EP0446139A1 (fr) 1991-09-11
DE69102458D1 (de) 1994-07-21
DE69102458T2 (de) 1994-11-24
US5270680A (en) 1993-12-14
FR2659476A1 (fr) 1991-09-13

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