PROBLEM TO BE SOLVED: To provide a bead wire releasing hook for preventing the residue of rubber lump on a bead wire after the pull-out of the bead wire or for removing the left rubber.SOLUTION: In a bead wire extracting hook, a side face is retained at the toe of the bead of a rubber tire T supported at a predetermined position along a support frame 18, and a bead wire W is pulled and removed to the opposite side of the support frame 18 through a wire guide groove 19b on the side of the support frame 18. In order that the retaining pawl 3b of said hook 3 may not cut into a rubber at the extracting work time, a protrusion having an edge angle or a corner angle less than a right angle is formed not in the end face or the peripheral face of the tip of the retaining pawl 3b of the hook 3 but in an angle protruding said retaining pawl 3b in an extracting direction. The leading end face and peripheral face of the retaining pawl 3b and the boundary corner parts of the adjoining peripheries are chamfered, and these chamfers are formed in radial sections so that the leading end faces of the retaining pawl 3b are formed into spherical shapes.SELECTED DRAWING: Figure 7

    【課題】ビードワイヤ抜取り後のビードワイヤへのゴムの塊の残存を防止し又は残存したゴムの除去を図る。【解決手段】この発明のビードワイヤ抜取用フックは、側面を支持フレーム18に沿わせて定位置で支持されたゴムタイヤTのビード部に係止し、上記支持フレーム18側のワイヤガイド溝19bを介して支持フレーム18の反対側にビードワイヤWを引抜いて除去するビードワイヤの抜取用フック3であって、引抜き作業時に該フック3の係止爪がゴム内に切れ込まないようにフック3の係止爪3bの先端部の端面及び周面に直角以下のエッジ角又はコーナー角を有する突起部を形成させずに上記係止爪3bを引抜き方向に突出する山形に形成してなる。係止爪3bの先端面と周面及び隣接する周面同士の境界コーナー部を面取りし、さらにこの面取りをアール状断面に形成し係止爪3bの先端面を球面状に形成する。【選択図】図7


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    Titel :

    BEAD WIRE RELEASING HOOK


    Weitere Titelangaben:

    ビードワイヤの抜取用フック


    Beteiligte:
    IWATA KAORU (Autor:in)

    Erscheinungsdatum :

    2016-06-02


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    B29B PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED , Vorbereiten oder Vorbehandeln der zu verformenden Masse / B60C VEHICLE TYRES , Fahrzeugreifen



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