公开(公告)号：JP2004142533A

公开(公告)日：2004-05-20

申请号：JP2002307768

申请日：2002-10-23

Applicant: Bridgestone Corp ,  株式会社ブリヂストン

Inventor： MATSUDA MITSUYUKI

IPC: B60C7/10

CPC classification number: B60C2200/10

Abstract: PROBLEM TO BE SOLVED: To provide a tire for a two wheeler with excellent durability of an elastic foamed body and excellent control stability by optimizing a reinforcement belt layer. SOLUTION: In the tire 1 for the two wheeler having a block pattern and with an elastic foamed body 8 filled in a cavity formed in a state of a tire wheel, a carcass 6 is constituted of at least a sheet of up ply 9a, 9b and at least a sheet of down ply 10. The distance h measured between folded ends 11 of the maximum width up ply 9a and a rim diameter line position 12 along the tire radial direction is 30-70% of the tire cross sectional height SH. A first reinforcement layer 14 and a second reinforcement layer 15 formed by coating a cord lower in elongation than a ply cord with rubber are provided in a crown part 13 of the carcass 6. In the first reinforcement layer 14, each of its edges 16 is brought into line with the folded ends 11 of the maximum width up ply 9a or overlapped by 20% or less of the tire radial direction length of the tire cross sectional height. COPYRIGHT: (C)2004,JPO

Abstract translation: 解决的问题：通过优化增强带层，提供具有优异的弹性发泡体的耐久性的两轮车轮胎和优异的控制稳定性。 解决方案：在轮胎1中，具有块状图案的轮胎1和填充在轮胎轮的状态下的弹性发泡体8，胎体6由至少一层上层构成 9a，9b和至少一层下层10.在轮胎径向方向上在最大宽度上部帘布层9a和边缘直径线位置12的折叠端部11之间测量的距离h为轮胎横截面积的30-70％ 身高SH。 在胎体6的胎冠部13中设置有第一加强层14和第二加强层15，所述第一加强层14和延伸部分通过在伸长时比带有橡胶的帘布层帘布层帘线涂层而形成。在第一加强层14中， 与最大宽度上升的帘布层9a的折叠端部11对准，或者与轮胎横截面高度的轮胎径向长度重叠20％以下。 版权所有（C）2004，JPO

公开(公告)号：JPH08239515A

公开(公告)日：1996-09-17

申请号：JP6891195

申请日：1995-03-03

Applicant: BRIDGESTONE CORP

Inventor： MATSUDA MITSUYUKI

IPC: B60C11/00 ,  C08L21/00

Abstract: PURPOSE: To obtain a pneumatic tire for heavy duty in which a specific rubber composition is used as a tread rubber and its burst resistance, particularly cutting and tearing resistances are improved during the running at elevated temperature without any adverse effect on its abrasion resistance and low heat build-up. CONSTITUTION: In this tire, a rubber composition comprising (A) 100 pts.wt. of a rubber component, (B) 20-70 pts.wt. of carbon black having a nitrogen- adsorption specific surface area of 70m /g or more, (C) 1-30 pts.wt. of an ABS resin having a heat distortion temperature of 70-180 deg.C and when needed, (D) 1-15 pts.wt. of silica is used as a base rubber for the tread, particularly as a base rubber for the tread having a cap/base structure.

公开(公告)号：JPH06128419A

公开(公告)日：1994-05-10

申请号：JP30313792

申请日：1992-10-16

Applicant: BRIDGESTONE CORP

Inventor： MATSUDA MITSUYUKI ,  HASHIMOTO TAKATSUGU

IPC: C08L21/00 ,  C08L101/00

Abstract: PURPOSE:To reduce viscosity during blending and vulcanization, to improve workability, to save energy and to raise mechanical strength of rubber during vulcanization. CONSTITUTION:Natural rubber of blended rubber of natural rubber and synthetic rubber is mixed with a liquid polymer having 20,000-95,000 viscosity-average molecular weight to give a rubber component and the rubber component is mixed with a reinforcing material to produce a vulcanizable rubber composition.