公开(公告)号：JPH06166307A

公开(公告)日：1994-06-14

申请号：JP774893

申请日：1993-01-20

Applicant: BRIDGESTONE CORP

Inventor： FUJITA KAZUTO ,  WADA MITSUISA

IPC: B60C15/00 ,  B60C15/024

Abstract: PURPOSE:To avoid an imperfect rim assembling by providing a curved flange of a standard rim and a swelling heel which leads to close contact with the round corner recessed fillet of the standard prior to the contact between the curved flange and the outer face of the bead section facing to the curved flange. CONSTITUTION:A pneumatic tire 1 has a bead section 3 closely fitting to its inclined bead sheet 6 to a standard rim 2. The standard rim 2 is provided with a round corner recessed fillet 7 stretching next to the inclined bead sheet 6, a flange 8 further overhanging than this fillet 7, and a curved flange 9 bent outward. In this case, the swelling heel 10 is integrated with the bead section 3 in a body. This swelling heel 10 is provided prior to lead to the close contact with round corner recessed fillet 7 over the whole periphery of the fillet 7 prior to the contact caused between the curved flange 9 and the outer face of the bead section 3 facing to the curved flange 9. This constitution leads the seating of the rim 2 on the round corner recessed fillet 7, guaranteeing a sure rim assembling.

公开(公告)号：JPH0867116A

公开(公告)日：1996-03-12

申请号：JP20406094

申请日：1994-08-30

Applicant: BRIDGESTONE CORP

Inventor： WADA MITSUISA

IPC: B60C17/04 ,  B60C17/00

Abstract: PURPOSE: To increase a travelling distance under a heavy load or at high speed even after internal pressure is lowered by forming the radially outer surface of the tire contact part of a core in a shape protruding toward a crown part in its section in the lateral direction and providing the lateral position of a radially outermost part at a prescribed position. CONSTITUTION: A core 3 fitted to the outer part of the well part 41 of a rim 4 is formed in such a shape that the radially outer surface of the tire contact part 31 in contact with the inner surface of a crown part 23 when the tire 2 collapses owing to the decrease of internal pressure protrudes to the crown part 23. The lateral position of the radially outermost part 35 of this protruding shape substantially correspond to a groove 25 extending substantially in the circumferential direction of a tread 24. Thus, the travel of a relatively long distance can be achieved under heavy load or at high speed even after internal pressure is lowered.

公开(公告)号：JPH0717222A

公开(公告)日：1995-01-20

申请号：JP16550693

申请日：1993-07-05

Applicant: BRIDGESTONE CORP

Inventor： TAKAYAMA MASAHIRO ,  WADA MITSUISA

IPC: B60C17/04

Abstract: PURPOSE:To provide a pneumatic tire core assembly body which can reduce noise without causing the unbalance of the tire itself by arranging properly a resonance impeding material to damp a cavity resonance sound to be generated by air vibration in a tire cavity. CONSTITUTION:A pneumatic tire core assembly body 4 is arranged on the well 3 of a rim 2, and is furnished with a tire inside resonance impeding material 5 consisting of porous substance or fiberlike substance whose apparent density is not more than 0.1g/cm .

公开(公告)号：JPH06239113A

公开(公告)日：1994-08-30

申请号：JP31151593

申请日：1993-12-13

Applicant: BRIDGESTONE CORP

Inventor： WADA MITSUISA

IPC: B60C15/02

Abstract: PURPOSE:To improve the uniformity by providing a circular member made of a rigid material integrally on the inner circumference of the bead of a pneumatic tire, and a bead sheet suitable to the inner surface taper of the circular member to a rim. CONSTITUTION:A circular member 7 composed of a rigid material and having an inner surface taper, which is fixed integrally to the inner circumference of the bead 3 of a pneumatic tire 4, is provided, and a taper-finished bead sheet 5 suitable to the inner surface taper of the circular member 7 is also provided. As a result, the tire wheel can be fixed surely to a scheduled fitting position with the bead 3, the uniformity is improved, the structure is simplified without reducing the rigidity, and light weight can be realized.

公开(公告)号：JPH10202765A

公开(公告)日：1998-08-04

申请号：JP2199197

申请日：1997-01-21

Applicant: BRIDGESTONE CORP

Inventor： BAN YUICHI ,  WADA MITSUISA

IPC: B41M1/10 ,  B29D30/06 ,  B41M1/32 ,  B60C13/00 ,  G09F3/02 ,  G09F21/04

Abstract: PROBLEM TO BE SOLVED: To form a clear mark at a correct set position of a tire. SOLUTION: Since a mark is formed by transferring liquid ink K loaded on the transfer surface 37 of a transfer body 36 on the outer surface of a vulcanized tire and drying, a setting position becomes correct and clear without vulcanizing the tire after the mark being formed. Since the ink K to be transferred is regulated of its shape before transfer, and the body 36 is curved and deformed following to the outer surface of the tire which is three-dimensional curved surface, the mark becomes clear.

公开(公告)号：JPH0867115A

公开(公告)日：1996-03-12

申请号：JP20405994

申请日：1994-08-30

Applicant: BRIDGESTONE CORP

Inventor： WADA MITSUISA

IPC: B60C15/036

Abstract: PURPOSE: To prevent a tire from being eccentrically mounted on a rim so as to realize a preferable unifromity by producing the rim with a resin material and fitting the bead part of the pneumatic tire to the rim by an integral molding upon molding of the rim. CONSTITUTION: A rim 10 having a bead seat fitted to the bead part of a pneumatic tire 2 is produced with a resin material and the tire 2 is fitted to the rim 10 by an integral molding upon molding of the rim 10. Accordingly, the eccentiric mounting of the tire 2 on the rim 10 can be prevented to have a preferable uniformity and decrease weight. The height of a rim flange can be set high without considering a rim assembling operation.

公开(公告)号：JPH07149118A

公开(公告)日：1995-06-13

申请号：JP30009193

申请日：1993-11-30

Applicant: BRIDGESTONE CORP

Inventor： WADA MITSUISA

IPC: B60C17/04

Abstract: PURPOSE:To make a rotary core correspond to the dimension of a rim well part which varies with rim makers without altering the dimensions of the rotary core, and to restrain the slippage of the rotary core occurring during running under a specified inner pressure of a pneumatic tire. CONSTITUTION:A spacer 1 formed of an elastic body thicker than a gap between the outer periphery of the rim well part 26 of a rim 20 and the inner periphery of a rotary core 10 for a pneumatic tire 40 is arranged between the above outer and inner periperies.

公开(公告)号：JPH1044722A

公开(公告)日：1998-02-17

申请号：JP13489197

申请日：1997-05-26

Applicant: BRIDGESTONE CORP

Inventor： NISHIKAWA TOMOHISA ,  WADA MITSUISA

IPC: B60C13/00

Abstract: PROBLEM TO BE SOLVED: To improve side cutting resistance by embedding at least one sheet of rubber-filament fiber compound material formed of filament and a rubber component, in a side wall, and setting the diameter or maximum diameter of filament into a specified value range, the length of the filament to the specified value or more and the thickness of the rubber-filament compound material into a specified value range. SOLUTION: Side wall rubber 7a, 7b are stuck onto a carcass layer 2 on both sides of tread rubber 6. At this time, rubber-filament fiber compound material 8a, 8b are embedded in the side wall rubber from the vicinity of the folded ends of the carcass layer 2 to the vicinity of the maximum width ends of a belt part. The filament of the embedded rubber-filament fiber compound material is to be 0.1-100μm in diameter or maximum diameter, 8mm or more in length and 0.05-2.0mm in thickness, and Metsuke (weight per 1m ) is to be 10-300g. Side cutting reistance is thus heightened without increasing tire weight.

公开(公告)号：JPH05104915A

公开(公告)日：1993-04-27

申请号：JP26469791

申请日：1991-10-14

Applicant: BRIDGESTONE CORP

Inventor： WADA MITSUISA

IPC: B60C17/00 ,  B60C17/04

Abstract: PURPOSE:To enable safe travel of comparatively long distance even at the time of the internal pressure of a pneumatic tire being lowered by a puncture or the like by using compound resin material of 7000-120000kg/cm in the modulus of flexural elasticity, 10-25kg/cm in Isod impact value (notched) and 220 deg.C (18.5kg/cm ) or higher in thermal deformation temperature. CONSTITUTION:An inner ring assembled body 10 supports a pneumatic tire 12 from the inside so as to impede its collapse and thereby to enable the travel of the pneumatic tire 12 in the internal pressure lowered state. The inner ring assembled body 10 is also rotated sliding on the well part 14A of a rim 14 by the force provided from the pneumatic tire 12 so as to prevent rubbing between the crown part inner surface 18A of the pneumatic tire 12 and the radial outer end of the inner ring. At this time, a great deal of frictional heat is generated at the contact face of the inner ring assembled body 10 with the well part 14A of the rim 14, but the inner ring assembled body 10 stands this frictional heat because of being formed of compound resin material of 7000-120000kg/cm in the modulus of flexural elasticity, 10-25kg/cm in Izod deformation temperature.

公开(公告)号：JP2002068154A

公开(公告)日：2002-03-08

申请号：JP2001137115

申请日：2001-05-08

Applicant: BRIDGESTONE CORP

Inventor： WADA MITSUISA ,  KOSHIIO TAKAYUKI

IPC: B65C9/36 ,  B41F16/00 ,  B41F17/00

Abstract: PROBLEM TO BE SOLVED: To print clear indication efficiently on side parts of ring goods such as tires. SOLUTION: A tire 12 is held by a pair of bead holding parts 86 and also an internal pressure is given thereto. Logo marks printed on transfer films 114 are located to exactly face printing positions of the tire, and are transferred on side parts of the tire 12 by pushing the transfer films 114 on the side parts by hot plates 126.