The invention provides a manhole cover member for a door of an automobile. The manhole cover member can exhibit all of sound insulation performance, sound absorption performance and waterproof performance through a single part. The access hole cover member (100) for the door is formed into a double-layer laminated body in which a buffer layer (110) and a rigid plate member (120) having sound insulation performance are laminated in this order. The buffer layer (110) is formed of a flexible elastic material having sound-absorbing performance and waterproof performance.
本发明提供一种汽车的门用检修孔盖构件,其可以单一的零件发挥出隔音性能、吸音性能及防水性能的全部的性能。门用检修孔盖构件(100)形成为将缓冲层(110)、具有隔音性能及刚性的板构件(120)依次层叠而成的双层层叠体。缓冲层(110)由具有吸音性能及防水性能的柔性弹性材料形成。
Manhole cover member for door of automobile
汽车的门用检修孔盖构件
2025-03-14
Patent
Electronic Resource
Chinese
IPC: | B60J WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES , Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge |