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公开(公告)号：BRPI0517757A
公开(公告)日：2008-10-21
申请号：BRPI0517757
申请日：2005-11-16
Applicant: BRIDGESTONE CORP
Inventor： OTA HIDEHISA , IIZUKA SHUHEI
Abstract: To wind a rubber strip material around a forming drum, a rubber strip material S extruded from a die 2 of an extruder 1 is spirally wound by an applicator 6 and formed around the forming drum 5 which is being rotated. In the forming operation, the peripheral speed Vd of the forming drum 5 is set lower than the extrusion speed Ve of the rubber strip material S from the die 2 of the extruder 1, that is, to a peripheral speed of 0.6 to 0. 95 times the extrusion speedVe and preferably to aperipheral speed about 0.9 times the extrusion speed Ve. With this arrangement, the rubber strip material stretched by die swelling can be contracted, a tire structural member can be formed around the forming drum with high accuracy at all times independently of the kind of the rubber strip material, and workability as well as shape stability after the rubber strip material is formed can be enhanced.
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公开(公告)号：DE60122945T2
公开(公告)日：2007-06-06
申请号：DE60122945
申请日：2001-11-21
Applicant: BRIDGESTONE CORP
Inventor： OGAWA YUICHIRO , IIZUKA SHUHEI
Abstract: A method for manufacturing a pneumatic tire including insert plies (35) in its sidewall portions, wherein said insert plies are formed on an outer peripheral side of a carcass band (31), said method comprising the steps, for forming a green tire, of radially outwardly expanding a widthwise center portion of a substantially cylindrical carcass band (31) having marginal portions to which bead rings (32) are attached, by moving the bead rings axially toward each other; forming the insert plies (35) by applying, on both side portions of the carcass band (31) separated from each other with the center portion therebetween, reinforcing cords (34) to extend approximately in parallel with the circumferential direction; and enhancing a degree of radial expansion of the carcass band (31) by further moving the bead rings (32) axially toward each other, so as to increase a tension of the reinforcing cords (34) and thereby bring an outer face of a resultant crown portion into contact with a belt and a tread for joining.
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公开(公告)号：ES2258511T3
公开(公告)日：2006-09-01
申请号：ES01303308
申请日：2001-04-06
Applicant: BRIDGESTONE CORP
Inventor： IIZUKA SHUHEI
Abstract: Método de producción de una cubierta neumática (1) que comprende un par de partes (2) que constituyen los talones, un par de partes (3) que constituyen los flancos y se extienden desde las respectivas partes que constituyen los talones, una parte (4) que constituye la banda de rodadura entre las partes que constituyen los flancos, una tela (6) de carcasa radial que se extiende toroidalmente entre las partes que constituyen los talones para reforzar las partes que constituyen los flancos y la parte que constituye la banda de rodadura, capas de refuerzo (10) que están dispuestas en zonas de las superficies laterales de la cubierta y se extienden desde las partes que constituyen los talones hasta las partes que constituyen los flancos, respectivamente, y un caucho (8) de revestimiento interior; estando dicho método caracterizado por comprender los pasos de: - formar dicha capa de refuerzo (10) en forma de un cuerpo anular laminado a base de arrollar y laminar en espiral una cinta (30R) de un caucho no vulcanizado que tiene un pequeño espesor y en el que están embebidas fibras cortas; y - aplicar el cuerpo anular laminado en un sitio que corresponde a una zona de la superficie lateral de la cubierta, entre un caucho exterior (12) y el caucho (8) de revestimiento interior, al ser efectuada la formación de una cubierta no vulcanizada para la cubierta a producir.
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公开(公告)号：DE60118137D1
公开(公告)日：2006-05-11
申请号：DE60118137
申请日：2001-11-21
Applicant: BRIDGESTONE CORP
Inventor： OGAWA YUICHIRO , IIZUKA SHUHEI
Abstract: Tire rubber material is highly accurately and efficiently extruded by a positive displacement extruding system (1) that includes, as seen from an upstream side of the tire rubber, a screw extruder unit (2), a gear pump unit (3) and an extrusion head unit (4)with an extrusion nozzle (5), which are connected in series with each other. While the tire rubber is caused to flow through the extruding system (1), the temperature of the rubber material is measured and controlled to be within a predetermined temperature range, in accordance with the measured temperature of the rubber material. The rubber material maintained at a controlled temperature is extruded from the extrusion nozzle (5), thereby improving the positive displacement performance of the extruding system.
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公开(公告)号：DE60117717T2
公开(公告)日：2006-10-19
申请号：DE60117717
申请日：2001-04-06
Applicant: BRIDGESTONE CORP
Inventor： IIZUKA SHUHEI
Abstract: A method of producing a tire with a simplified operation and a high productivity, for improving the lateral rigidity and the steering stability performance of the tire. An annular laminated body as a reinforcing layer in the side surface area of the tire is formed by spirally winding and laminating a ribbon of an unvulcanized rubber embedding a thin gauge and embedding short fibers with a desired orientation. The annular laminated body is applied at a position corresponding to the side surface area of the tire, between the outer rubber and the inner liner rubber, upon formation of a green tire for the tire.
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Patent Agency Ranking
公开(公告)号：DE60117717D1
公开(公告)日：2006-05-04
申请号：DE60117717
申请日：2001-04-06
Applicant: BRIDGESTONE CORP
Inventor： IIZUKA SHUHEI
Abstract: A method of producing a tire with a simplified operation and a high productivity, for improving the lateral rigidity and the steering stability performance of the tire. An annular laminated body as a reinforcing layer in the side surface area of the tire is formed by spirally winding and laminating a ribbon of an unvulcanized rubber embedding a thin gauge and embedding short fibers with a desired orientation. The annular laminated body is applied at a position corresponding to the side surface area of the tire, between the outer rubber and the inner liner rubber, upon formation of a green tire for the tire.
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公开(公告)号：DE69916709D1
公开(公告)日：2004-06-03
申请号：DE69916709
申请日：1999-06-28
Applicant: BRIDGESTONE CORP
Inventor： IIZUKA SHUHEI , OGAWA YUICHIRO
Abstract: A rubber material for a tire-constitutional member is laid on a rotating support (1) with high efficiency and high accuracy by arranging a pair of rollers (11,12) rotating in opposite directions in the vicinity of a radially outer surface portion of the support and utilizing a gap (DR) defined between the rollers as a roller die. Specifically apparatus (10) for laying rubber materials for tire-constitutional members around a rotating support (1) comprises a volumetric extruder (25) for feeding an uncured rubber material onto the rotating support, a pair of rollers (11,12) located near to an outlet port of the volumetric extruder and near to a radially outer portion of the rotating support and driven in opposite directions to each other, and a gap (DR) defined between the pair of the rollers and serving as a die for the rubber material to be laid.
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公开(公告)号：BRPI0517757B1
公开(公告)日：2016-06-07
申请号：BRPI0517757
申请日：2005-11-16
Applicant: BRIDGESTONE CORP
Inventor： OTA HIDEHISA , IIZUKA SHUHEI
Abstract: método de enrolar material de tira de borracha ao redor de cilindro de modelagem. a presente invenção refere-se a um material de tira de borracha ao redor de um cilindro de modelagem, um material de tira de borracha s, extrudado de uma matriz 2, de um extrusor 1, é enrolado em espiral por um aplicador 6, e modelado ao redor do cilindro de modelagem 5, que está sendo girado. na operação de modelagem, a velocidade periférica vd, do cilindro de modelagem 5, é fixada menor do que a velocidade de extrusão ve, do material de tira de borracha s, desde a matriz 2, do extrusor 1, quer dizer, a uma velocidade periférica de 0,6 a 0,95 vezes a velocidade de extrusão ve, e preferencialmente, a uma velocidade periférica aproximadamente 0,9 vezes a velocidade de extrusão ve. com esta disposição, o material de tira de borracha estirado pelo inchamento da matriz pode ser contraído, um membro estrutural de pneu pode ser modelado ao redor do cilindro de modelagem com alta precisão, a toda hora, independentemente do tipo do material de tira de borracha, e pode ser aumentada a trabalhabilidade, como também a estabilidade de formato, depois que o material de tira de borracha é modelado.
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公开(公告)号：ES2273140T3
公开(公告)日：2007-05-01
申请号：ES04022540
申请日：2001-11-21
Applicant: BRIDGESTONE CORP
Inventor： OGAWA YUICHIRO , IIZUKA SHUHEI
Abstract: Método de fabricación de una cubierta neumática que incluye telas insertadas (35) en sus partes de pared lateral en el que dichas telas insertadas se forman en un lado periférico exterior de una banda de carcasa (31), comprendiendo dicho método los siguientes pasos de formación de una cubierta no vulcanizada: expandir radialmente hacia el exterior una parte central en anchura de una banda de carcasa cilíndrica (31) que presenta partes marginales a las que se unen unos anillos del talón (32), a base de mover dichos anillos del talón axialmente el uno hacia el otro; perfilar las telas insertadas (35) aplicando, en ambas partes laterales de la banda de carcasa (31) separadas entre sí con la parte central entre medio, unos hilos de refuerzo (34) que se extienden en paralelo a la dirección circunferencial, y aumentar un grado de expansión radial de la banda de carcasa (31) a base de seguir moviendo los anillos del talón (32) axialmente el uno hacia el otro, de tal manera que se incremente la tensión de los hilos de refuerzo (34) y con ello poner una cara exterior de una parte de corona resultante en contacto con un cinturón y con una banda de rodadura para su unión.
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公开(公告)号：DE60122945D1
公开(公告)日：2006-10-19
申请号：DE60122945
申请日：2001-11-21
Applicant: BRIDGESTONE CORP
Inventor： OGAWA YUICHIRO , IIZUKA SHUHEI
Abstract: A method for manufacturing a pneumatic tire including insert plies (35) in its sidewall portions, wherein said insert plies are formed on an outer peripheral side of a carcass band (31), said method comprising the steps, for forming a green tire, of radially outwardly expanding a widthwise center portion of a substantially cylindrical carcass band (31) having marginal portions to which bead rings (32) are attached, by moving the bead rings axially toward each other; forming the insert plies (35) by applying, on both side portions of the carcass band (31) separated from each other with the center portion therebetween, reinforcing cords (34) to extend approximately in parallel with the circumferential direction; and enhancing a degree of radial expansion of the carcass band (31) by further moving the bead rings (32) axially toward each other, so as to increase a tension of the reinforcing cords (34) and thereby bring an outer face of a resultant crown portion into contact with a belt and a tread for joining.
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