WINDOW OF A MOTOR VEHICLE COMPRISING TWO SKINS WITH EXCREENESS AND TAKING IN SANDWICH A SOUL

摘要

The present invention relates to a wall of a motor vehicle comprising a first skin (10) and a second skin (20) sandwiching a web (50). The web (50) is made of a material whose rigidity is less than the rigidity of each of the skins, and in that at least the first skin (10) has on its inner face (15) of the first protuberances (30) which penetrate into the core (50) and which are separated from the second skin (20), the first protuberances (30) being irregularly positioned on the inner face (15) and / or with variable geometry of a first protrusion (30) to a first protrusion (30), so that the transmission of acoustic waves through the wall is minimized.