To provide a tread rubber forming method capable of efficiently forming tread rubber including three rubber layers and a conductive layer in a jointless manner.SOLUTION: A tread rubber forming method S1 includes: a first step of forming a base layer 1; a second step of forming a first intermediate layer 21 on a part of an outer peripheral surface of the base layer 1; a third step of forming a first cap layer 31 by lapping a third rubber strip GS3 onto an outer peripheral surface of the first intermediate layer 21; a fourth step S14 of forming a conductive layer 4 by lapping a conductive fourth rubber strip GS4 from a position contacting the base layer 1 to an outer peripheral surface of the first cap layer 31; and a fifth step of forming a second cap layer on an outward side in a radial direction of the base layer 1 such that a part of the conductive layer 4 is exposed on an outward side in a radial direction of the tread rubber.SELECTED DRAWING: Figure 4

    【課題】3層のゴム層と導電層を含むトレッドゴムをジョイントレスで効率よく形成できるトレッドゴム形成方法の提供。【解決手段】トレッドゴム形成方法S1は、ベース層1を形成する第1工程と、ベース層1の外周面の一部に第1中間層21を形成する第2工程と、第3ゴムストリップGS3を第1中間層21の外周面に巻き重ねることにより、第1キャップ層31を形成する第3工程と、導電性の第4ゴムストリップGS4をベース層1に接する位置から第1キャップ層31の外周面に亘って巻き付けることにより、導電層4を形成する第4工程S14と、導電層4の一部がトレッドゴムの径方向外側に露出するように、ベース層1の径方向外側に第2キャップ層を形成する第5工程とを含む。【選択図】図4


    Access

    Download


    Export, share and cite



    Title :

    TREAD RUBBER FORMING METHOD AND TREAD RUBBER FORMING APPARATUS


    Additional title:

    トレッドゴム形成方法及びトレッドゴム形成装置


    Contributors:

    Publication date :

    2021-09-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B29D PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE , Herstellen besonderer Gegenstände aus Kunststoff oder aus Stoffen in plastischem Zustand / B60C VEHICLE TYRES , Fahrzeugreifen



    TREAD RUBBER FORMING METHOD AND TREAD RUBBER FORMING APPARATUS

    ONIMATSU HIROYUKI | European Patent Office | 2021

    Free access

    TREAD RUBBER FORMING METHOD AND TREAD RUBBER FORMING DEVICE

    ONIMATSU HIROYUKI | European Patent Office | 2021

    Free access

    TREAD RUBBER MOLDING APPARATUS AND TREAD RUBBER MOLDING METHOD

    KOSEKI SATORU | European Patent Office | 2024

    Free access

    TREAD RUBBER COMPOSITION, TREAD RUBBER, AND TIRE

    SAITO KOSUKE | European Patent Office | 2025

    Free access

    Tread rubber composition, tread rubber and preparation method

    REN FUYUN / HOU XIAOQIAN / SHEN TENG et al. | European Patent Office | 2023

    Free access