AUTOMOBILE BELTLINE PORTION SOUND INSULATING STRUCTURE AND AUTOMOBILE DOOR GLASS

摘要

To provide an automobile beltline portion sound insulating structure capable of improving a sound insulation state of an automobile interior at a door glass closed time to a high level and an automobile door glass. An automobile beltline portion sound insulating structure including a door panel having two panel boards facing each other having seal members along the beltline respectively, and a door glass provided between the two panel boards having a main body and a first viscoelastic member having a Young's modulus lower than that of the seal member, in a lower portion of one main surface of the main body, the seal member positioned on the side of the one main surface having two or more lip portions, wherein the first viscoelastic member is positioned between the two lip portions while abutting on at least a part of the seal member at the door glass closed time.

主权项

1. An automobile beltline portion sound insulating structure formed along a beltline of an automobile, comprising:
a door panel comprises two panel boards facing each other, and a door glass freely openable and closable and provided between the two panel boards in a liftable manner, wherein the two panel boards comprise seal members sealing between the door panel and the door glass in regions along the beltline of facing surfaces respectively, the door glass comprises a door glass main body and a first viscoelastic member in a lower portion of one main surface of the door glass main body, the first viscoelastic member having has a Young's modulus lower than that of a seal member positioned on a surface of the panel board facing to the one main surface of the door glass main body, the seal member positioned on the surface of the panel board facing to the one main surface comprises at least two lip portions on a side of the door glass, and the first viscoelastic member is positioned between the at least two lip portions while abutting on at least a part of the seal member positioned on the surface of the panel board facing to the one main surface, at a door glass closed time, to insulate sound between the door panel and the door glass.