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US 6,668,489 B2Granted
Sound insulating weather strip
AssigneeNishikawa Rubber Co., Ltd.
InventorsEiichi Baba, Yoshihiro Kohara
Life of this patent
Estimating the term…
Abstract
A sound insulating weather strip for automobile comprising: a hollow seal portion to be attached to at least one of a door and a body panel of a car; and a low density foam sponge material comprising a rubber or synthetic resin, and provided at a portion in said hollow seal portion which is to be held and compressed between said door or a glass and said body panel when said door is closed.
Claims3
A sound insulating weather strip for an automobile comprising:
- a hollow seal portion to be attached to at least one of a door and a body panel of a car;
- and
- a low density foam sponge material disposed entirely within said hollow seal portion, comprising a rubber or synthetic resin, and said low density foam sponge material being provided within a portion of said hollow seal portion which is to be held and compressed between said door or a glass and said body panel when said door is closed,
- wherein said low density foam sponge material has a first portion facing an interior side of the car and a second portion facing an exterior side of the car, and wherein said first portion has a higher density than said second portion, due to being compressed between said door or the glass and said body panel when said door is closed, wherein only said first portion is compressed and said second portion is not compressed, and
- wherein said low density foam sponge material has a specific gravity of 0.1 to 0.3.
2 more elements
Dependencies are inferred from the claim text.