GRAZING UNIT HAVING IMPROVED VIBRATION SOUND ATTENUATION CHARACTERISTIC, METHOD FOR PRODUCING THE GRAZING UNIT AND METHOD FOR INSULATING SOUND IN PASSENGER COMPARTMENT OF VEHICLE

摘要

PROBLEM TO BE SOLVED: To provide a grazing unit having improved vibration sound attenuation characteristics.SOLUTION: A grazing unit 1 comprises at least one glass plate 10 and at least one vibration sound attenuation profile 2 connected to the glass plate 10 by at least one side and including at least one member 20 of attenuation material having a loss coefficient of 0.4 or higher at 20°C to the frequency of below 5,000 Hz and a Young's modulus of below 200 MPa. The profile 2 includes a weighting member 3 having a linear mass higher than 0.05 kg/m, and connected to the member 20 produced by attenuation material, the member 20 produced by attenuation material is provided between the glass plate 10 and the weighting member 3, and apparatuses other than the grazing 1 are not associated.