TIRE MANUFACTURING METHOD AND TIRE MANUFACTURING APPARATUS

• Main Author: KOIKE MASARU
• Format: Patent
• Language: English; Japanese
• Published: 04.07.2023
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

To provide a tire manufacturing method and a tire manufacturing apparatus capable of uniformly inflating a bladder.SOLUTION: A tire manufacturing method using a bladder that contacts an inner surface of the tire when inflated, and a plurality of molds that contact an outer surface of the tire includes: a repetitive process of repeatedly inflating and deflating the bladder inside the tire; an expansion process in which the bladder is inflated so that it contacts an entire inner surface of the tire, after the repetitive process; and a moving process of moving the mold from a mold opening position for loading and unloading the tire to a mold closing position for molding the tire, after the repetitive process.SELECTED DRAWING: Figure 3 【課題】 ブラダを均等に膨張させることができるタイヤ製造方法及びタイヤ製造装置を提供する。【解決手段】 タイヤ製造方法は、膨張することによってタイヤの内表面に接するブラダと、タイヤの外表面に接する複数のモールドと、を用いるタイヤ製造方法であって、タイヤの内部でブラダの膨張と収縮とを繰り返す繰返工程と、繰返工程の後に、ブラダがタイヤの内表面の全体に接するように、ブラダを膨張する膨張工程と、繰返工程の後に、タイヤを出し入れするための型開き位置からタイヤを成形するための型閉め位置へ、モールドを移動する移動工程と、を含む。【選択図】 図３