METHOD AND APPARATUS FOR ADHERING BEAD FILLER

PURPOSE:To enhance the quality of a tire by preventing not only the joint stagger of a filler but also the generation of wrinkles, by mounting a bead filler to the inner peripheral surface of a bead core in a cylindrical shape and fixing and connecting the overlapped part for the joint thereof befor...

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Bibliographische Detailangaben
Hauptverfasser: SUGA SUSUMU, ITO SUSUMU, SATO KAZUO, KOKUBU SATORU
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:PURPOSE:To enhance the quality of a tire by preventing not only the joint stagger of a filler but also the generation of wrinkles, by mounting a bead filler to the inner peripheral surface of a bead core in a cylindrical shape and fixing and connecting the overlapped part for the joint thereof before performing the bonding and winding-up of the filler to the outside in a radius direction. CONSTITUTION:A bead core A equipped with apex supported in a rotatable manner is rotated in the direction shown by an arrow S in such a state that the start end part CT of a strip like bead filler C is pressed to the inner peripheral surface AQ of the bead core A and the rotation thereof is stopped when the angle of rotation of the start end part CT of the filler C becomes a definite angle alpha. In this state, the filler C is obliquely cut into a definite dimension along a filler code by a cutting blade 16 and, continuously, the core A is further rotated to mount the filler C to the inner peripheral surface AQ of the core A in an almost cylindrical shape. Subsequently, for example, the wide expanding part CA of the overlapped part J is bonded at a blade tip part ET under pressure and the core A is subsequently allowed to again make one revolution and the cylindrical filler C is taken up toward outside in the radius direction of the core A and integrally bonded to both side surfaces of the core A and the bead apex B under pressure to complete bonding.