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1. 发明授权

US11667157B2 Tire 有权
公开(公告)号：US11667157B2
公开(公告)日：2023-06-06
申请号：US17555662
申请日：2021-12-20
申请人： SUMITOMO RUBBER INDUSTRIES, LTD.
发明人： Hiroshi Kikuchi
IPC分类号： B60C11/00 , B60C11/01 , B60C11/03
CPC分类号： B60C11/0083 , B60C11/005 , B60C11/0327 , B60C2011/0025 , B60C2011/0033
摘要： In a tire, a tread includes a cap layer forming a part of the outer surface of the tire, an intermediate layer disposed inwardly of the cap layer in the radial direction, and a base layer disposed inwardly of the intermediate layer in the radial direction. A loss tangent of the intermediate layer at 30° C. is less than a loss tangent of the cap layer at 30° C., and a loss tangent of the base layer at 30° C. is less than the loss tangent of the intermediate layer at 30° C. An outer end of the cap layer is disposed outwardly of an outer end of the base layer in the axial direction. In the radial direction, a position of the outer end of the cap layer coincides with a position of the outer end of the base layer, or the outer end of the cap layer is disposed inwardly of the outer end of the base layer.

2. 发明申请

US20180304695A1 TIRE 审中-公开
公开(公告)号：US20180304695A1
公开(公告)日：2018-10-25
申请号：US15560090
申请日：2016-03-28
申请人： BRIDGESTONE CORPORATION
发明人： Sayaka MISHIMA
IPC分类号： B60C11/13 , B60C11/03
CPC分类号： B60C11/1353 , B60C11/0327 , B60C2011/0341 , B60C2011/1338 , B60C2011/1361 , B60C2200/06
摘要： In a tire in which a groove extending a tire circumferential direction is formed in a tread part, a projection extending in a direction intersecting the tire circumferential direction is provided at a groove bottom of the groove, the projection includes: a first projection part extending from one groove wall forming the groove toward the other groove wall forming the groove, and terminating short of the other groove wall; and a second projection part extending from the other groove wall toward the one groove wall, and terminating short of the one groove wall, and a terminal part of the first projection part is arranged closer to the other groove wall than a terminal part of the second projection part.

3. 发明授权

US10017013B2 Aircraft tire including tread with groove recesses for suppressing heat generation 有权
公开(公告)号：US10017013B2
公开(公告)日：2018-07-10
申请号：US14786163
申请日：2014-04-15
申请人： BRIDGESTONE CORPORATION
发明人： Tomotaka Sakiyama , Yohei Okita
IPC分类号： B60C11/13 , B60C11/03 , B60C11/04
CPC分类号： B60C11/0323 , B60C11/0327 , B60C11/04 , B60C11/1307 , B60C2011/0334 , B60C2011/0341 , B60C2011/0381 , B60C2011/133 , B60C2200/02
摘要： In order to suppress an excessive increase in the temperature of a tread section, a tire includes: a first land portion that is formed to a tread section by providing plural circumferential direction grooves extending around a tire circumferential direction at a spacing in a tire width direction, and that includes plural first recesses provided around the tire circumferential direction of a wall face of the first land portion; and a second land portion that has a wider width than the first land portion, and that includes a greater number of second recesses than the number of the first recesses provided around the tire circumferential direction of a wall face of the second land portion.

4. 发明申请

US20180134091A1 PNEUMATIC TIRE 审中-公开
公开(公告)号：US20180134091A1
公开(公告)日：2018-05-17
申请号：US15786789
申请日：2017-10-18
申请人： TOYO TIRE & RUBBER CO., LTD.
发明人： Seiji Yokomakura
IPC分类号： B60C11/03 , B60C11/13
CPC分类号： B60C11/0327 , B60C11/01 , B60C11/0306 , B60C11/1307 , B60C11/1315 , B60C11/1353 , B60C2011/013 , B60C2011/0348 , B60C2011/133 , B60C2011/1338 , B60C2011/1361
摘要： A pneumatic tire includes a shoulder land portion and a narrow groove in a tread surface. The narrow groove extends in the tire circumferential direction and sections the shoulder land portion into a main land portion and a sub land portion. A first groove portion extends from the tread surface toward an inner side in the tire radial direction in parallel to the tire equatorial plane. A second groove portion is provided closer to the inner side in the tire radial direction and the tire equatorial plane side than the first groove portion and extends in parallel to the tire equatorial plane. A coupling portion is connected to an end portion of the first groove portion in the inner side in the tire radial direction and an end portion of the second groove portion in the tread surface side.

5. 发明授权

US09889709B2 Tire with knobs 有权
公开(公告)号：US09889709B2
公开(公告)日：2018-02-13
申请号：US14103624
申请日：2013-12-11
申请人： Shinji Marui
发明人： Shinji Marui
IPC分类号： B60C11/11 , B60C11/03 , B60C11/13
CPC分类号： B60C11/0311 , B60C11/032 , B60C11/0327 , B60C11/11 , B60C2011/1361 , B60C2200/12
摘要： A tire includes knobs that are small in relation to the size of the tire. The knobs are closely positioned together in groups and may be disposed in recesses to lower the tops of the knobs relative to the circumferential outer surface of the tire. The recesses may comprise a variety of shapes and designs. The knobs may have varying lengths, widths, heights and shapes. The knobs may also be grouped to form letters, numerals, symbols and graphic images. The size of the knobs and distance of spacing between adjacent knobs may be proportionally small in relation to the tire's width, diameter, circumference, or ridable surface area.

6. 发明授权

US09809061B2 Tire 有权
公开(公告)号：US09809061B2
公开(公告)日：2017-11-07
申请号：US14409290
申请日：2013-07-04
申请人： BRIDGESTONE CORPORATION
发明人： Yuki Kawakami
IPC分类号： B60C11/13 , B60C11/03 , B60C11/04 , B60C11/01
CPC分类号： B60C11/0327 , B60C11/01 , B60C11/0306 , B60C11/0309 , B60C11/04 , B60C11/1369 , B60C11/1384 , B60C2011/1361
摘要： A tire is provided with multiple projection parts in a groove bottom of a groove portion. The projection parts extend from one side wall to the other side wall opposed to the one side wall, the side walls forming the groove portion. The projection parts are arranged at predetermined intervals in the groove portion. A relationship of 0.75L≦P≦10L is satisfied where L denotes a length of the projection parts and P denotes the predetermined intervals. In addition, a relationship of TWf/cos θf≦0.9W is satisfied where W denotes a groove width of the groove, TWf denotes a width of the projection parts, and θf denotes an angle formed by an extending direction of the projection parts and a groove center line in a direction opposite to a rotation direction of the tire in a tread face view of the tire.

7. 发明申请

US20160297248A1 TIRE TREAD HAVING A PLURALITY OF WEAR LAYERS 有权
标题翻译：轮胎有多层磨损层
公开(公告)号：US20160297248A1
公开(公告)日：2016-10-13
申请号：US15190383
申请日：2016-06-23
申请人： MICHELIN RECHERCHE ET TECHNIQUE S.A. , COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
发明人： Jeffrey Thomas WARFFORD , Damon Lee CHRISTENBURY , Robert Cecil LAWSON , Timothy A. WHITE
IPC分类号： B60C11/03 , B60C11/12
CPC分类号： B60C11/033 , B60C11/00 , B60C11/0323 , B60C11/0327 , B60C11/0332 , B60C11/12 , B60C11/1218 , B60C11/1281 , B60C11/1307 , B60C11/1353 , B60C2011/0334 , B60C2011/0353 , B60C2011/0365 , B60C2011/1213
摘要： Particular embodiments of the present invention include a multi-stage tire tread having two or more wear layers comprising an outer wear layer and one or more inner wear layers arranged within the thickness of the tread below the outer wear layer and one or more outer grooves are arranged within the outer wear layer. The tread further includes a volumetric void ratio equal to approximately 0.25 to 0.40 in the unworn condition and approximately 0.25 to 0.40 in a worn condition where the outer, ground-engaging side is arranged along one of the inner wear layers in the worn condition, the tread further having a contact surface ratio equal to approximately 0.66-0.72 in the unworn condition and approximately 0.56-0.66 in the worn condition.
摘要翻译：本发明的具体实施例包括具有两个或更多个耐磨层的多级轮胎胎面，所述耐磨层包括外耐磨层和布置在外耐磨层下方的胎面厚度内的一个或多个内耐磨层，以及一个或多个外槽布置在外部耐磨层内。胎面还包括在未磨损状态下等于大约0.25至0.40的体积空隙率和在磨损状态下约0.25至0.40的磨损状态，其中外接地接合侧沿磨损状态沿内磨损层布置，在未磨损状态下进一步具有接近表面比等于约0.66-0.72的胎面，并且在磨损状态下约为0.56-0.66。

8. 发明申请

US20160207360A1 HEAVY DUTY PNEUMATIC TIRE 有权
标题翻译：重型气动轮胎
公开(公告)号：US20160207360A1
公开(公告)日：2016-07-21
申请号：US14914325
申请日：2014-08-28
申请人： BRIDGESTONE CORPORATION
发明人： Kentaro SAEKI , Nobuyuki YAMAMOTO
IPC分类号： B60C11/12 , B60C11/03
CPC分类号： B60C11/1236 , B60C11/0327 , B60C11/11 , B60C11/12 , B60C2011/0334 , B60C2011/0355 , B60C2011/1209 , B60C2011/129 , B60C2011/1295 , B60C2200/06
摘要： A heavy duty pneumatic tire includes a tread surface having, on at least a section thereof, a plurality of circumferential-direction grooves extending along a tread circumferential line and land portions defined either by the circumferential-direction grooves or by the circumferential-direction grooves and tread ground contact edges. The land portions include at least one partitioned land portion in which a plurality of narrow width-direction grooves extending in a tread width direction are provided. A prescribed internal pressure is at least 750 kPa. A depth of the circumferential-direction grooves, represented by H, satisfies a relationship 7 mm≦H≦13 mm. A tread circumferential-direction spacing of the narrow width-direction grooves, represented by W, satisfies a relationship 5 mm≦W≦20 mm.
摘要翻译：重型充气轮胎包括胎面表面，该胎面表面在其至少一部分上具有沿着胎面周向线延伸的多个圆周方向槽和由圆周方向槽或圆周方向槽限定的陆部，胎面接地边缘。陆部包括至少一个分隔的陆部，其中设置有沿胎面宽度方向延伸的多个窄宽度方向槽。规定的内部压力至少为750kPa。由H表示的圆周方向槽的深度满足关系7mm＆nlE; H＆nlE; 13mm。由W表示的窄宽度方向槽的胎面圆周方向间隔满足关系5mm和nlE; W＆nlE; 20mm。

9. 发明申请

US20160185159A1 PNEUMATIC TIRE 审中-公开
标题翻译：气动轮胎
公开(公告)号：US20160185159A1
公开(公告)日：2016-06-30
申请号：US14902593
申请日：2014-06-30
申请人： BRIDGESTONE CORPORATION
发明人： Naohiro OOKAWA
IPC分类号： B60C11/03 , B60C11/13
CPC分类号： B60C11/0327 , B60C11/04 , B60C11/11 , B60C11/1307 , B60C11/1353 , B60C11/1384 , B60C2011/0341 , B60C2011/0358
摘要： A pneumatic tire includes plural land portions that are provided at a tread and that are partitioned by plural circumferential direction grooves that extend along a tire circumferential direction. A lug groove is provided at at least one land portion among the plural land portions and crosses the land portion in a tire width direction. A fine groove is provided at a groove bottom portion of the lug groove, has a narrower groove width than the lug groove, and has a groove bottom face formed with a circular arc shaped profile when viewed in cross-section at right angles to a groove length direction. A coupling curved face joins the groove bottom face and a groove side face at a length direction end portion of the fine groove, to a groove side face of the circumferential direction grooves.
摘要翻译：一种充气轮胎包括设置在胎面处并且沿着轮胎周向延伸的多个圆周方向槽分隔的多个胎面部。在多个陆部的至少一个陆部设置横向花纹槽，并且在轮胎宽度方向上与陆部交叉。在横向花纹沟槽的槽底部设置有细槽，槽宽度大于横向花纹沟槽，并且在与沟槽成直角的剖面观察时，形成有圆弧状轮廓的槽底面长度方向。耦合曲面将槽的底面和细槽的长度方向端部的槽侧面连接到周向槽的槽侧面。

10. 发明申请

US20160089937A1 Pneumatic Tire 审中-公开
标题翻译：气动轮胎
公开(公告)号：US20160089937A1
公开(公告)日：2016-03-31
申请号：US14785033
申请日：2014-04-01
申请人： THE YOKOHAMA RUBBER CO., LTD.
发明人： Keisuke Kagaya
IPC分类号： B60C11/03 , B60C11/11
CPC分类号： B60C11/0327 , B60C11/0304 , B60C11/0306 , B60C11/04 , B60C11/11 , B60C11/1236 , B60C2011/0346 , B60C2011/0348 , B60C2011/0353 , B60C2011/036 , B60C2011/1209 , B60C2011/1213 , B60C2011/1245 , B60C2011/1295
摘要： A pneumatic tire is provided with improved braking performance and turning performance on ice. Circumferential narrow grooves are disposed at a density in the tire width direction of not less than 0.06 grooves/mm and not more than 0.2 grooves/mm. Width direction narrow grooves extend at an angle with respect to the tire width direction of not less than −45° and not more than +45°. The circumferential narrow grooves have at least one bent portion. The bend angle of the bent portion is not less than 40° and not more than 160°.
摘要翻译：充气轮胎在冰上具有改进的制动性能和转向性能。轮胎宽度方向的密度为0.06个/ mm以上且0.2个/ mm以下的圆周方向的细槽。宽度方向窄槽相对于轮胎宽度方向以一定角度延伸不小于-45°且不大于+ 45°。圆周窄槽具有至少一个弯曲部分。弯曲部的弯曲角度为40°以上160°以下。

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