Processing

Please wait...

Settings

Settings

1. WO2020002804 - MOTOR VEHICLE WINDSCREEN

Publication Number WO/2020/002804
Publication Date 02.01.2020
International Application No. PCT/FR2019/051529
International Filing Date 21.06.2019
IPC
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
R
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
3
Circuits for transducers
02
for preventing acoustic reaction
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
R
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
17
Piezo-electric transducers; Electrostrictive transducers
10
Resonant transducers, i.e. adapted to produce maximum output at a predetermined frequency
G PHYSICS
10
MUSICAL INSTRUMENTS; ACOUSTICS
K
SOUND-PRODUCING DEVICES;  METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
11
Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
16
Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
175
using interference effects; Masking sound
178
by electro-acoustically regenerating the original acoustic waves in anti-phase
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
J
WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
1
Windows; Windscreens; Accessories therefor
02
arranged at the vehicle front
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
17
Layered products essentially comprising sheet glass, or fibres of glass, slag or the like
06
comprising glass as the main or only constituent of a layer, next to another layer of a specific substance
10
of synthetic resin
H04R 3/02 (2006.01)
H04R 17/10 (2006.01)
G10K 11/178 (2006.01)
B60J 1/02 (2006.01)
B32B 17/10 (2006.01)
CPC
B32B 17/10036
G10K 11/17861
G10K 2210/1282
G10K 2210/1291
G10K 2210/3211
G10K 2210/509
Applicants
  • SAINT-GOBAIN GLASS FRANCE [FR/FR]; 18 avenue d'Alsace 92400 COURBEVOIE, FR
Inventors
  • MICHAU, Marc; FR
Agents
  • SAINT-GOBAIN RECHERCHE; Département Propriété Industrielle 39 quai Lucien Lefranc 93300 AUBERVILLIERS, FR
Priority Data
185586528.06.2018FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) MOTOR VEHICLE WINDSCREEN
(FR) PARE-BRISE DE VEHICULE AUTOMOBILE
Abstract
(EN)
The invention relates to a motor vehicle windscreen comprising two transparent substrates (2, 3) that are connected together by an insert (4) made of viscoelastic material, at least one of the substrates (2, 3) comprising, on its surface, an electromechanical resonator (10) disposed in the immediate vicinity of a position (7) for a base of an accessory such as a rear-view mirror or a camera. The invention makes it possible to attenuate, or even eliminate, vibrations of the glass of the rear-view mirror or of the camera.
(FR)
L'invention concerne un pare-brise de véhicule automobile comprenant deux substrats transparents (2, 3) reliés entre eux par un intercalaire (4) en matériau vis- coélastique, au moins un des substrats (2, 3) comprenant à sa surface un résona- teur électromécanique (10) disposé à proximité immédiate d'un emplacement (7) pour une embase d'accessoire tel qu'un rétroviseur intérieur ou une caméra. L'invention permet d'atténuer, voire de supprimer, les vibrations de la vitre du rétroviseur intérieur ou de la caméra.
Latest bibliographic data on file with the International Bureau