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公开(公告)号：DE69926850D1
公开(公告)日：2005-09-29
申请号：DE69926850
申请日：1999-04-06
Applicant: BRIDGESTONE CORP
Inventor： OGAWA YUICHIRO
Abstract: A bead wire winding device is provided with a winding guide(s) (3) which is rotated with a molding support body (1), and which approachingly and retreatingly displaces with respect to each side portion of the molding support body (1). A bead wire (W) is supplied to a wire seating portion (11) of the winding guide (3) within a space defined by each winding guide (3) which is in an approached state with respect to a respective side surface of the molding support body (1), and in an enlarged diameter state. The winding guide (3) is constituted by a plurality of radially displacing members (9), which can be enlargingly and reducingly displaced in a radial direction, connected to a boss portion (7) through link members (8). Each of the radially displacing members (9) has a protrusion that forms a wire seating portion (11). A clamping claw (13) is provided on at least one of the radially displacing members (9), and is urged constantly in a closing direction and pinches a tip portion of the bead wire (W).
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公开(公告)号：MXPA05001410A
公开(公告)日：2005-09-08
申请号：MXPA05001410
申请日：2003-08-05
Applicant: BRIDGESTONE CORP
Inventor： OGAWA YUICHIRO
Abstract: Un tambor de moldeado de neumatico y un metodo de moldeado de neumatico capaces de ensamblar exactamente miembros componentes del neumatico, el tambor de moldeado de neumatico comprende por lo menos un cuerpo de nucleo que tiene una pluralidad de hojas de miembros rigidos de soporte dispuestos en una forma anular sobre el interior axial de un par de medios de aseguramiento de talon de la cubierta y deplazablemente extendidos y contraidos; el metodo comprende los pasos de, utilizando el tambor de moldeado de neumatico, asegurar nucleos de talon de la cubierta por los medios de aseguramiento de talon de la cubierta, abombar la parte central de una banda de carcasa mientras que desplaza los medios de aseguramiento de talon de la cubierta cerca uno de otro, doblando la parte lateral de la banda de la carcasa al lado externo radial alrededor de los nucleos de talon de la cubierta, aumentando los diametros de los cuerpos de nucleo a los diametros maximos con los nucleos de talon de la cubierta asegurados, y ensamblar los miembros componentes del neumatico sobre los cuerpos de nucleo diametralmente aumentados.
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公开(公告)号：DE60104061T2
公开(公告)日：2005-08-25
申请号：DE60104061
申请日：2001-07-31
Applicant: BRIDGESTONE CORP
Inventor： OGAWA YUICHIRO
IPC: G01M1/38 , B29C71/00 , B29D30/06 , B60C19/00 , G01M1/04 , G01M1/32 , G01M1/36 , G01M17/02 , G01M1/30
Abstract: A radial force variation of a tire (1) is corrected irrespective of the kind of the organic fiber cord used, wherein a radial force variation (RFV) is measured at room temperature to specify a tire position indicating a minimum value of RFV, and an inner face (2is) of a tread portion (2) is pushed and enlarged outward in a radial direction of the tire by a pushing means (104) at a RFV bottom region sandwiching the position of the minimum RFV value from both sides thereof in a circumferential direction of the tread portion, and such a push enlarged state is kept for a given time. This is achieved by apparatus comprising a split rim (101,102) assembling the tire, a pushing means (104) arranged on either one segment of the split rim, and a feed and discharge valve (111,112) of a pressurized gas to an inside of the tire assembled onto the rim, in which a pushing member (105) reciprocatively moving in a radial direction of the tire assembled onto the rim and pushing an inner face (2is) of the tread portion (2) from an inside of the tire is arranged in the pushing means (104) and either one segment (101) of the split rim is fixed to a main body of the apparatus and the other segment (102) is connected to a moving means (103) in an axial line direction of the rim displacing the rim between operation position and non-operation position in the assembling of the tire.
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公开(公告)号：DE60020418D1
公开(公告)日：2005-07-07
申请号：DE60020418
申请日：2000-01-27
Applicant: BRIDGESTONE CORP
Inventor： TSUKAGOSHI TETSUHITO , WATANABE TAKESHI , KADOTA KUNINOBU , OGAWA YUICHIRO
IPC: B29D30/32 , B60C13/00 , B60C15/00 , B60C15/024 , B60C15/06
Abstract: A pneumatic tire comprises a carcass comprised of at least one carcass ply (15) containing a steel cord(s) arranged at a cord angle of 70-90 DEG with respect to an equatorial plane of the tire and toroidally extending between a pair of bead cores (14) and turned up around the bead core inward or outward in a radial direction to form a turnup portion, wherein a wrap part (17) wrapping on a peripheral face of the bead core therealong is formed in the turnup portion of the carcass ply.
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公开(公告)号：DE60104061D1
公开(公告)日：2004-08-05
申请号：DE60104061
申请日：2001-07-31
Applicant: BRIDGESTONE CORP
Inventor： OGAWA YUICHIRO
IPC: G01M1/38 , B29C71/00 , B29D30/06 , B60C19/00 , G01M1/04 , G01M1/32 , G01M1/36 , G01M17/02 , G01M1/30
Abstract: A radial force variation of a tire (1) is corrected irrespective of the kind of the organic fiber cord used, wherein a radial force variation (RFV) is measured at room temperature to specify a tire position indicating a minimum value of RFV, and an inner face (2is) of a tread portion (2) is pushed and enlarged outward in a radial direction of the tire by a pushing means (104) at a RFV bottom region sandwiching the position of the minimum RFV value from both sides thereof in a circumferential direction of the tread portion, and such a push enlarged state is kept for a given time. This is achieved by apparatus comprising a split rim (101,102) assembling the tire, a pushing means (104) arranged on either one segment of the split rim, and a feed and discharge valve (111,112) of a pressurized gas to an inside of the tire assembled onto the rim, in which a pushing member (105) reciprocatively moving in a radial direction of the tire assembled onto the rim and pushing an inner face (2is) of the tread portion (2) from an inside of the tire is arranged in the pushing means (104) and either one segment (101) of the split rim is fixed to a main body of the apparatus and the other segment (102) is connected to a moving means (103) in an axial line direction of the rim displacing the rim between operation position and non-operation position in the assembling of the tire.
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Patent Agency Ranking
公开(公告)号：DE69915536D1
公开(公告)日：2004-04-22
申请号：DE69915536
申请日：1999-06-01
Applicant: BRIDGESTONE CORP
Inventor： OGAWA YUICHIRO
IPC: B29D30/10 , B29D30/16 , B29K105/08
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公开(公告)号：ES2202752T3
公开(公告)日：2004-04-01
申请号：ES98305859
申请日：1998-07-22
Applicant: BRIDGESTONE CORP
Inventor： OGAWA YUICHIRO
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公开(公告)号：ES2202005T3
公开(公告)日：2004-04-01
申请号：ES00303302
申请日：2000-04-19
Applicant: BRIDGESTONE CORP
Inventor： OGAWA YUICHIRO , TAKABAYASHI KEIICHI
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公开(公告)号：DE69905655T2
公开(公告)日：2003-11-27
申请号：DE69905655
申请日：1999-07-08
Applicant: BRIDGESTONE CORP
Inventor： OKU MASAHARU , OGAWA YUICHIRO , HATAKEYAMA KAZUYA
Abstract: In the lamination of band-shaped uncured rubber materials to form a laminated rubber member having a given sectional shape by helically winding a band-shaped uncured rubber material extruded through an extruder (2) on a rotating support (1), two or more rubber compositions (A-C) exhibiting different moduli after curing are used as a rubber material fed to the extruder (2). A first rubber material (A) is extruded through the extruder (2) and helically wound on the support (1) to form a first rubber layer. Then the first rubber material (A) and a second rubber material (B) are fed continuously and simultaneously through the extruder (2) so as to stepwise or gradually increase the blending ratio of the second rubber material (B) to the first rubber material (A) while holding the same extrusion sectional shape and helically wound on the first rubber layer while overlapping with at least a part of the first rubber layer, to form a second rubber layer.
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公开(公告)号：DE69712945T2
公开(公告)日：2003-01-09
申请号：DE69712945
申请日：1997-02-14
Applicant: BRIDGESTONE CORP
Inventor： OGAWA YUICHIRO
IPC: B29D30/32
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