Windscreen for motor vehicle, has anti-vibration device including assembly of movable mass and elastic connection unit whose characteristics are chosen to have resonance frequency equal to frequency of natural mode of vibrations

摘要

The windscreen has an anti-vibration device comprising an assembly of a movable mass (20) and an elastic connection unit (22) connected to a transparent wall (14) and to the mass. A base (24) supports the anti-vibration device and is rigid to a natural mode of vibrations of the wall, and a rearview mirror covers the anti-vibration device. The assembly has characteristics which are chosen so as to have a resonance frequency equal to the frequency of the natural mode of vibrations.