To provide a rubber product sufficiently reduced in a stress intensity factor in an end part of a cord and having high durability, and to provide a pneumatic tire using the same.SOLUTION: A rubber product having a plurality of cords 30 and a rubber part 40 is such that: the cord 30 has a cord untwisting end part 33 in which a plurality of element wires 31 are untwisted at least at one end side of a cord body part; and when the minimum value of an interval between the end faces 31a of the adjacent element wires 31 in the cord untwisting end part 33 of the cord 30 is Dmin, and the minimum value of a gap between the end face 31a of the element wire 31 in the cord untwisting end part 33 of the cord 30, and the end face 31a of the element wire 31 in the cord untwisting end part 33 of the cord 30, adjacent to the cord 30 is Da, the end faces 31a of the plurality of element wires 31 are arranged so as to satisfy 0.5<1.5.SELECTED DRAWING: Figure 4

    【課題】コードの端部における応力拡大係数を十分に低減させた耐久性の高いゴム製品及びこれを用いた空気入りタイヤを提供する。【解決手段】複数本のコード30とゴム部40とを有するゴム製品であって、コード30は、コード本体部の少なくとも一端側に複数本の素線31の撚りが解かれたコード解撚端部33を有し、コード30のコード解撚端部33における隣り合う素線31の端面31aの間隔の最小値をDminとし、当該コード30のコード解撚端部33における素線31の端面31aと当該コード30に隣接するコード30のコード解撚端部33における素線31の端面31aとの間隔の最小値をDaとしたときに、0.5<Dmin/Da<1.5を満たすように、複数本の素線31の端面31aが配置されている。【選択図】図4


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    Title :

    RUBBER PRODUCT AND PNEUMATIC TIRE


    Additional title:

    ゴム製品及び空気入りタイヤ


    Contributors:

    Publication date :

    2021-10-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen



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