To improve a load noise reduction effect of an acoustic damper.SOLUTION: An acoustic damper 20 comprising a sponge material comprises plural protrusions 22 which project from a radial direction inner surface of a base part 21. The protrusions 22 have a rib-like shape which continuously extends from one side edge to the other side edge of the base part 21 in a width direction, and are arranged at intervals in a tire circumferential direction. In a tire circumferential direction cross section, the radial direction inner surface of the base part 21 includes a circular arc face part 23, and a radial direction inner surface of the protrusion 22 includes a flat face part 24 which faces a tire shaft core.SELECTED DRAWING: Figure 2
【課題】 制音体のロードノイズ低減効果を高める。【解決手段】 スポンジ材からなる制音体20は、ベース部21の半径方向内面から突出する複数の凸部22を具える。凸部22は、ベース部21の巾方向の一側縁から他側縁まで連続してのびるリブ状をなし、タイヤ周方向に間隔を隔てて配される。タイヤ周方向断面において、ベース部21の半径方向内面は円弧面部23を含み、凸部22の半径方向内面は、タイヤ軸芯に正対する平らなフラット面部24を含む。【選択図】図2
PNEUMATIC TIRE WITH ACOUSTIC DAMPER
制音体付き空気入りタイヤ
2019-04-25
Patent
Electronic Resource
Japanese
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
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