TIRE MOLDING APPARATUS
To provide a tire molding apparatus capable of preventing a bead part from excessively sticking to a bead lock when shaping, and capable of rapidly taking a molded green tire out of the bead lock without causing damage.SOLUTION: A tire molding apparatus for holding a green case 1 formed by winding a...
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Main Author | |
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Format | Patent |
Language | English Japanese |
Published |
22.07.2019
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Subjects | |
Online Access | Get full text |
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Summary: | To provide a tire molding apparatus capable of preventing a bead part from excessively sticking to a bead lock when shaping, and capable of rapidly taking a molded green tire out of the bead lock without causing damage.SOLUTION: A tire molding apparatus for holding a green case 1 formed by winding a bead portion 4 provided with a bead filler 3B on the outer peripheral side of an annular bead core 3A with an end portion of a cylindrical carcass in the width direction is provided with a bead lock 16 for coming into contact with the inner side surface of the bead portion 4 in the radial direction to hold the green case 1. The bead lock 16 has a first region configuring a part of contact surface with the bead portion 4 formed with a material more excellent in mold release property than that in a second region configuring the remainder.SELECTED DRAWING: Figure 2
【課題】シェーピング時にビード部がビードロックに過度に密着するのを防ぐことができ、成形した生タイヤをビードロックから損傷することなく速やかに取り出す事の出来るタイヤ成形装置を提供する。【解決手段】環状のビードコア3Aの外周側にビードフィラー3Bが設けられたビード部4を円筒状のカーカスの幅方向端部で巻き込んだグリーンケース1を保持するタイヤ成型装置において、ビード部4の径方向内側面に当接してグリーンケース1を保持するビードロック16を備え、ビードロック16は、ビード部4との接触面の一部を構成する第1領域が、残部を構成する第2領域より離型性に優れた材料で形成されている。【選択図】図2 |
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Bibliography: | Application Number: JP20170254664 |