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公开(公告)号：US20170274710A1
公开(公告)日：2017-09-28
申请号：US15508682
申请日：2015-09-03
发明人： Tadao MATSUMOTO , Yasutaka IWATA , Kentaro YAGYU , Fumikazu YAMASHITA , Shingo UMEKITA , Yasuaki KUNIYASU , Hiroaki NINOMIYA
IPC分类号： B60C15/06
摘要： In the tire 2, fillers 10 are layered over clinches 8 in portions outward of a carcass 14 in the axial direction. A carcass ply 50 is turned up around cores 44. Turned-up portions 50a are disposed between the fillers 10 and apexes 46. Each clinch 8 has a maximum thickness Tcx that is measured along a line normal to an inner surface, in the axial direction, of the clinch 8. A ratio of a thickness Tf1 of the filler 10 to a sum of the thickness Tf1 and the thickness Tcx is greater than or equal to 0.1 and not greater than 0.6. A percentage of a complex elastic modulus E*f of the filler 10 relative to a complex elastic modulus E*a of the apex 46 is greater than or equal to 70% and not greater than 125%.
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公开(公告)号：US20210283954A1
公开(公告)日：2021-09-16
申请号：US17195781
申请日：2021-03-09
发明人： Hiroaki NINOMIYA
摘要： A pneumatic tire comprises a carcass which comprises a carcass ply composed of a main portion extending between bead portions and a pair of turned-up portions turned-up around respective bead cores. The bead portion is provided with: a primary bead apex rubber disposed between the carcass-ply main portion and the carcass-ply turned-up portion; an insulation rubber layer extending radially outwardly through between the carcass-ply main portion and the carcass-ply turned-up portion; and a subsidiary bead apex rubber layer disposed on the axially outside of the carcass-ply turned-up portion. The radially outer edge of the insulation rubber layer is located radially outside the radially outer edge of the subsidiary bead apex rubber layer. The complex elastic modulus of the insulation rubber layer is equal to or greater than the complex elastic modulus of the topping rubber of the carcass ply.
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公开(公告)号：US20140230982A1
公开(公告)日：2014-08-21
申请号：US14022953
申请日：2013-09-10
发明人： Hiroaki NINOMIYA , Satoshi IWASAKI
CPC分类号： B60C11/1369 , B60C11/0306 , B60C11/12 , B60C2011/0346 , B60C2011/0365 , B60C2011/0369 , B60C2011/0372 , B60C2011/0381
摘要： A pneumatic tire includes a tread portion provided with a pair of center main grooves and a pair of shoulder main grooves to define a center portion, a pair of middle portions, and a pair of shoulder portions. The shoulder main grooves extend in a trapezoid wave manner that includes a circumferentially extending axially outer part, an axially inner part arranged axially inwardly of the axially outer part, and an inclined part connecting between the axially outer and inner parts. The shoulder portion is provided with shoulder lateral grooves extending from the shoulder main groove to a tread edge to define a plurality of shoulder blocks. Each shoulder lateral groove has its axially inner end connected to the axially outer part of the shoulder main groove so as to include an outer corner point between the axially outer part and the inclined part.
摘要翻译： 充气轮胎包括设置有一对中心主槽和一对胎肩主槽以限定中心部分，一对中间部分和一对肩部的胎面部。 肩主槽以梯形波方式延伸，其包括周向延伸的轴向外部部分，轴向内部部分，轴向外部部分布置，以及连接在轴向外部部分和内部部分之间的倾斜部分。 肩部设置有从肩部主槽延伸到胎面边缘的肩部横向槽，以限定多个肩部块。 每个胎肩横向槽的轴向内端连接到胎肩主槽的轴向外部，以便在轴向外部和倾斜部之间包括一个外角点。
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公开(公告)号：US20240316997A1
公开(公告)日：2024-09-26
申请号：US18434865
申请日：2024-02-07
发明人： Hiroaki NINOMIYA
CPC分类号： B60C19/002 , B60C5/002
摘要： A tire assembly can include a rim and a pneumatic tire. A sound damper can be in a tire inner cavity, defined by an outer surface of the rim and an inner surface of the pneumatic tire, extending in a tire circumferential direction. The rim can have a rim diameter RD not greater than 18 inches. A ratio SH/SW of a cross-sectional height SH to a tire cross-sectional width SW of the pneumatic tire can be 30% to 45%. A ratio RW/SW of a rim width RW of the rim to the tire cross-sectional width SW can be 78% to 99%. The sound damper can include a sponge material adhered to at least one of the outer surface of the rim and the inner surface of the pneumatic tire. The sponge material can have a volume of not less than 0.4% of a total volume of the tire inner cavity.
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公开(公告)号：US20190054771A1
公开(公告)日：2019-02-21
申请号：US16049170
申请日：2018-07-30
发明人： Hiroaki NINOMIYA
摘要： A tire comprises a tread portion 2. The tread portion 2 has a repeated pattern portion 7 in which a plurality of minimum pattern constituent units 8 is arranged in a tire circumferential direction. Each of the minimum pattern constituent units 8 includes a center block 10, a plurality of surrounding blocks 11 surrounding the center block 10, and dividing grooves 15 each arranged between adjacent ones of the plurality of the surrounding blocks 11. The dividing grooves 15 include first dividing grooves 16 and second dividing grooves 17 inclined in opposite directions to each other.
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公开(公告)号：US20180297416A1
公开(公告)日：2018-10-18
申请号：US15928580
申请日：2018-03-22
发明人： Hiroaki NINOMIYA
IPC分类号： B60C11/12
摘要： A tire includes a tread portion including a first land portion defined between circumferentially extending first and second edges. The first land portion is provided with first and second lateral grooves respectively extending from the first and second edges and terminating within the first land portion and a circumferentially extending first longitudinal narrow groove in communication with the first and second lateral grooves. Each of the first and second lateral grooves includes a wide-width portion and a narrow-width portion. The wide-width portion of each of the first lateral grooves extends from the first edge and the wide-width portion of each of the second lateral grooves extends from the second edge. The first longitudinal narrow groove passes through the narrow-width portion of each of the first and second lateral grooves without passing through the wide-width portion of each of the first and second lateral grooves.
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公开(公告)号：US20170210176A1
公开(公告)日：2017-07-27
申请号：US15402852
申请日：2017-01-10
摘要： A pneumatic tire comprises a tread portion 2 provided with at least one circumferentially continuously extending main groove 3. The main groove 3 has a zigzag periodical pattern formed by circumferentially repeatedly arranging a first oblique segment 11 and a second oblique segment 12 as a repeating unit which define one zigzag pitch. The first oblique segment 11 extends without being bent, and the second oblique segment 12 extends in a bent manner.
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公开(公告)号：US20140209225A1
公开(公告)日：2014-07-31
申请号：US14153139
申请日：2014-01-13
发明人： Keita KURODA , Yosuke MATSUDA , Hiroaki NINOMIYA
IPC分类号： B60C11/03
CPC分类号： B60C11/0309 , B60C11/0306 , B60C11/1236 , B60C2011/0346 , B60C2011/0348 , B60C2011/0365 , B60C2011/0372 , B60C2011/0381 , B60C2011/1209 , B60C2011/1213 , B60C2011/1245
摘要： A pneumatic tire has a tread portion provided with two crown main groove and two shoulder main grooves and divided into a center land zone, two middle land zones and two shoulder land zones. The middle land zone is provided with middle auxiliary grooves. The shoulder land zone is provided with shoulder axial grooves. The width of the shoulder axial groove at the axially outer end is more than the width of the shoulder axial groove at the axially inner end. Through the shoulder main groove, the shoulder axial grooves are continued to the respective middle auxiliary grooves.
摘要翻译： 充气轮胎具有设置有两个胎冠主槽和两个胎肩主槽的胎面部分，分为中心陆地区域，两个中间陆地区域和两个肩部陆地区域。 中间地带设有中间辅助槽。 肩带区域设有肩部轴向凹槽。 肩轴向槽在轴向外端的宽度大于肩轴向槽在轴向内端的宽度。 通过台肩主槽，胎肩轴向槽继续到各个中间辅助槽。
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