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1. WO1996004645 - A WARNING HORN, PARTICULARLY FOR MOTOR VEHICLES

Considered void:  26.07.1996
Publication Number WO/1996/004645
Publication Date 15.02.1996
International Application No. PCT/EP1995/003075
International Filing Date 02.08.1995
Chapter 2 Demand Filed 22.02.1996
IPC
G10K 9/13 2006.01
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
KSOUND-PRODUCING DEVICES;  METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
9Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
12electrically operated
13using electromagnetic driving means
CPC
G10K 9/13
GPHYSICS
10MUSICAL INSTRUMENTS; ACOUSTICS
KSOUND-PRODUCING DEVICES
9Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooter, buzzer
12electrically operated
13using electromagnetic driving means
Applicants
  • F.I.A.M.M. COMPONENTI ACCESSORI - F.C.A. S.P.A. [IT/IT]; Corso Palladio, 147 I-36100 Vicenza, IT (AllExceptUS)
  • COTENA, Roberto [IT/IT]; IT (UsOnly)
Inventors
  • COTENA, Roberto; IT
Agents
  • QUINTERNO, Giuseppe ; Jacobacci & Perani S.p.A. Corso Regio Parco, 27 I-10152 Torino, IT
Priority Data
TO94A00065205.08.1994IT
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) A WARNING HORN, PARTICULARLY FOR MOTOR VEHICLES
(FR) KLAXON DESTINE AUX VEHICULES A MOTEUR
Abstract
(EN)
The warning horn (1) comprises a support casing (2, 3) in which a vibratory diaphgram (4) is mounted. An excitation winding (7), also disposed in the casing (2, 3), is carried in a fixed position by an annular support (6). A movable ferromagnetic core (5) is connected to the diaphragm (4). The horn (1) also comprises a stationary magnetic circuit (10, 11) for conducting the magnetic flux (L) generated by the winding (7) and linked by the movable core (5). This stationary circuit comprises two annular, planar elements (10, 11a) of ferromagnetic material disposed parallel to one another and adjacent the opposite ends of the support (6) of the winding (7), and a substantially cylindrical, annlar wall (11b) also of ferromagnetic material, disposed around the support (6) of the winding (7). This cylindrical wall (11b) is preferably integral with one of the two planar elements (10, 11a).
(FR)
Le klaxon (1) de la présente invention est constitué d'une enceinte support (2, 3) dans laquelle est montée une membrane vibrante (4). Une bobine excitatrice (7) également placée dans l'enceinte (2, 3) est maintenue en position fixe par un support annulaire (6). Un noyau ferromagnétique mobile (5) est raccordé à la membrane (4). Le klaxon (1) comporte également un circuit magnétique stationnaire (10, 11) conduisant le flux magnétique (L) généré par la bobine et bouclé au niveau du noyau mobile (5). Le circuit stationnaire se compose de deux éléments annulaires plans (10, 11a) en substance ferromagnétique parallèles entre eux, en position adjacente des extrémités opposées du support (6) de la bobine (7), et d'une paroi annulaire sensiblement cylindrique (11b), également en substance ferromagnétique, et disposée autour du support (6) de la bobine (7). Cette paroi cylindrique (11b) fait de préférence bloc avec les deux éléments plans (10, 11a).
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