| 摘要 |
PROBLEM TO BE SOLVED: To lower the frequency of reed pipe sound so as to lower the harshness and uncomfortableness by making a lip part for sealing a clearance between a door edge part and an opening edge part of a car body lower in hardness than a fitting base part to be attached to the door edge part or the opening edge part of the car body. SOLUTION: A hollow seal part 14 is formed into a hollow shape having a circular cross section, which is swelled from a fitting base part 12, and abuts on the opening edge 4 of the car body so as to seal a clearance formed between the opening edge 4 and the door edge 2. The fitting base 12 and the hollow seal part 14 are made of the sponge rubber having hardness at 40-60 and density at 0.5-0.8 g/cm<3> . The lip part 16 is swelled from an upper part of the fitting base 12 outside of a vehicle at the hollow seal part 14, and the lip part 16 abuts on the opening edge 4 of the car body so as to seal a clearance formed between the opening edge 4 and the door 2 edge. This lip part 16 is made of the sponge rubber having rubber hardness lower than that of the fitting base 12 and the hollow seal part 14, for example, at 30-50. With this structure, rigidity is low, and the natural frequency is restricted small. |
