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1. 发明授权

EP3216626B1 PNEUMATIC TIRE 有权
公开(公告)号：EP3216626B1
公开(公告)日：2019-10-16
申请号：EP15857826.0
申请日：2015-08-28
申请人： Bridgestone Corporation
发明人： SAEKI, Kentaro
IPC分类号： B60C11/13 , B60C11/03 , B60C11/11

2. 发明授权

EP3015289B1 PNEUMATIC TIRE 有权
公开(公告)号：EP3015289B1
公开(公告)日：2018-04-25
申请号：EP14817390.9
申请日：2014-05-09
申请人： Bridgestone Corporation
发明人： SAEKI, Kentaro
IPC分类号： B60C11/03 , B60C11/12
CPC分类号： B60C11/1218 , B60C11/0327 , B60C2011/0334 , B60C2011/0341 , B60C2011/1209
摘要： A pneumatic tire includes: a plurality of land portions; and in at least one land portion of the plurality of land portions, a sipe extending in the tread width direction, of which ends open at the circumferential grooves or the tread ends. Provided that of the area in which the sipe extend, two areas covering 1/6 of the extension length of the sipe from both ends of the sipe are end regions; two areas covering 1/6 of the extension length of the sipe that are adjacent to the two end regions are intermediate regions, and an area covering 1/3 of the extension length of the sipe which is sandwiched between the two intermediate regions is a center region. The sipe has at least one bent portion extending continuously in the extending direction of the sipe from one of the end regions of the sipe in the depth direction of the sipe. The at least one bent portion is located on the outer side in the tire radial direction of the end regions than in the center region.

3. 发明授权

EP3308977B1 PNEUMATIC TIRE 有权
公开(公告)号：EP3308977B1
公开(公告)日：2019-08-07
申请号：EP16811479.1
申请日：2016-06-03
申请人： Bridgestone Corporation
发明人： SAEKI, Kentaro
IPC分类号： B60C11/03 , B60C11/12

4. 发明公开

EP2174805A1 PNEUMATIC TIRE 有权
标题翻译：充气轮胎
公开(公告)号：EP2174805A1
公开(公告)日：2010-04-14
申请号：EP08777010.3
申请日：2008-05-29
申请人： Bridgestone Corporation
发明人： KAJI, Yoshio , WATABE, Ryoichi , SAEKI, Kentaro , KUROKAWA, Makoto
IPC分类号： B60C11/12
CPC分类号： B60C11/12 , B60C11/1218 , B60C11/1263
摘要： A pneumatic tire having enhanced on-ice braking performance achieved by further increasing the amount of water that can be sucked up into sipes. In the pneumatic tire,blocks(26) partitioned by circumferential grooves and lateral grooves are formed in the tread. A sipe(28) is formed in a block(26), and a fine structure (32) having a height in the range of from 1/50 of the sipe width t to less than 1/10 of the sipe width t is formed on a sipe wall surface. This reduces fluid friction coefficient of water relative to the sipe wall surface to a lower level than conventional products. As a result, when water staying on ice comes into contact with the sipe wall surface, the water is more easily sucked up into the sipe. The construction increases the amount of water that can be sucked up into the sipe(28). or the removal amount of water that stays on ice etc., and this enhances braking performance(friction characteristics) on ice.
摘要翻译：通过进一步增加可被吸入刀槽花纹中的水量而实现的具有增强的冰上制动性能的充气轮胎。在充气轮胎中，在胎面中形成由周向槽和横向槽分隔的块（26）。在花纹块（26）上形成刀槽花纹（28），并且形成高度在刀槽花纹宽度t的1/50至小于刀槽花纹宽度t的1/10的范围内的精细结构（32）在刀槽花纹壁面上。这使水相对于刀槽花纹壁表面的流体摩擦系数降低到比常规产品更低的水平。结果，当冰上的水与刀槽花纹壁表面接触时，水更容易被吸入刀槽花纹中。该结构增加了可以吸入刀槽花纹（28）的水量。或停留在冰上的水的去除量等，并且这增强了冰上的制动性能（摩擦特性）。

5. 发明公开

EP3216626A1 PNEUMATIC TIRE 有权
标题翻译：充气轮胎
公开(公告)号：EP3216626A1
公开(公告)日：2017-09-13
申请号：EP15857826.0
申请日：2015-08-28
申请人： Bridgestone Corporation
发明人： SAEKI, Kentaro
IPC分类号： B60C11/13 , B60C11/03
摘要： A pneumatic tire includes a tread (1) formed with a plurality of land portions (5) defined by a plurality of line grooves (2, 3) . Projecting portions (6, 6) are formed to project from both of opposed side surfaces of the land portions (5) located adjacent to each other with the line groove (2, 3) therebetween toward each other, the projecting portions (6, 6) each being formed in that region of the land portion (5) which is deeper than a tread surface (5f). Closely opposed end surfaces (6s, 6s) of the projecting portions (6, 6) facing each other are both formed to be rough surfaces having a high frictional resistance. This ensures that the projecting portions (6, 6) making contact with each other due to compressive deformation of the land portions (5) due to grounding of the tread (1) firmly support the land portions (5) on both sides thereof, deformation of the land portions (5) is suppressed, and rolling resistance is reduced while maintaining wet grip performance.
摘要翻译：充气轮胎包括形成有由多个线槽（2,3）限定的多个脊部（5）的胎面（1）。突出部（6,6）形成为从位于其间的线槽（2,3）彼此相邻的陆部（5）的相对侧表面中的两个侧表面彼此相向地突出，突出部（6,6 ）分别形成在比胎面表面（5f）更深的接地部分（5）的该区域中。突出部分（6,6）的彼此相对的紧密相对的端面（6s，6s）都形成为具有高摩擦阻力的粗糙表面。这确保了由于胎面（1）的接地导致的接地部分（5）的压缩变形而彼此接触的突出部分（6,6）牢固地支撑其两侧的接地部分（5），变形的接地部分（5）被抑制，并且滚动阻力减小，同时保持湿抓地性能。

6. 发明公开

EP3308977A1 PNEUMATIC TIRE 有权
标题翻译：充气轮胎
公开(公告)号：EP3308977A1
公开(公告)日：2018-04-18
申请号：EP16811479.1
申请日：2016-06-03
申请人： Bridgestone Corporation
发明人： SAEKI, Kentaro
IPC分类号： B60C11/03 , B60C11/12
CPC分类号： B60C11/0304 , B60C11/0306 , B60C11/12 , B60C2011/0346 , B60C2011/0348 , B60C2011/0353 , B60C2011/0358
摘要： A pneumatic tire has circumferential narrow grooves and plural lug grooves. At least one of the circumferential narrow grooves is formed in each of tread portion tread surfaces at both sides of a tire equator S, extending continuously in the circumferential direction. Opposing side walls of the circumferential narrow grooves contact each other during ground contact. The lug grooves are formed in the tread portion tread surfaces and separated in the circumferential direction, and extend towards the tire equator S from one or another of tread ends. The circumferential narrow grooves are the only grooves extending in the circumferential direction, which are formed in the tread portion tread surfaces. Width direction inner side ends of the lug grooves respectively terminate by opening into the circumferential narrow grooves disposed at an outer side, which are circumferential narrow grooves that are closest to the respective tread ends.
摘要翻译：充气轮胎具有周向窄槽和多个横向槽。周向细槽中的至少一个在轮胎赤道S的两侧的胎面部胎面表面的每一个中形成，并且在周向上连续地延伸。在地面接触期间，周向窄槽的相对侧壁彼此接触。横向花纹沟形成在胎面部胎面表面中并沿圆周方向分离，并且从胎面端部中的一个或另一个朝向轮胎赤道S延伸。周向窄槽是在胎面部胎面表面形成的沿圆周方向延伸的唯一槽。横向花纹槽的宽度方向内侧端分别通过向设置在最外侧的周向细槽中开口而终止，所述周向细槽是最接近相应胎面端的周向细槽。

7. 发明公开

EP3040215A1 HEAVY DUTY PNEUMATIC TIRE 有权
标题翻译：重负荷气胎
公开(公告)号：EP3040215A1
公开(公告)日：2016-07-06
申请号：EP14839616.1
申请日：2014-08-28
申请人： Bridgestone Corporation
发明人： SAEKI, Kentaro , YAMAMOTO, Nobuyuki
IPC分类号： B60C11/11 , B60C11/12
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：重载用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周向槽以及由周向槽或周向槽限定的着陆部和踩踏地面接触边缘。陆部包括至少一个分割陆部，其中设置有沿胎面宽度方向延伸的多个窄宽度方向沟槽。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7mm≤H≤13mm的关系。由W表示的窄宽度方向槽的胎面周向间隔满足5mm≤W≤20mm的关系。

8. 发明公开

EP3015289A1 PNEUMATIC TIRE 有权
标题翻译：充气轮胎
公开(公告)号：EP3015289A1
公开(公告)日：2016-05-04
申请号：EP14817390.9
申请日：2014-05-09
申请人： Bridgestone Corporation
发明人： SAEKI, Kentaro
IPC分类号： B60C11/12
CPC分类号： B60C11/1218 , B60C11/0327 , B60C2011/0334 , B60C2011/0341 , B60C2011/1209
摘要： A pneumatic tire includes: a plurality of land portions; and in at least one land portion of the plurality of land portions, a sipe extending in the tread width direction, of which ends open at the circumferential grooves or the tread ends. Provided that of the area in which the sipe extend, two areas covering 1/6 of the extension length of the sipe from both ends of the sipe are end regions; two areas covering 1/6 of the extension length of the sipe that are adjacent to the two end regions are intermediate regions, and an area covering 1/3 of the extension length of the sipe which is sandwiched between the two intermediate regions is a center region. The sipe has at least one bent portion extending continuously in the extending direction of the sipe from one of the end regions of the sipe in the depth direction of the sipe. The at least one bent portion is located on the outer side in the tire radial direction of the end regions than in the center region.
摘要翻译：一种充气轮胎，包括：多个接地部; 并且在所述多个陆部的至少一个陆部中，在胎面宽度方向上延伸的刀槽花纹在所述周向槽或胎面端处开口。如果刀槽花纹的延伸区域延伸，则从刀槽花纹的两端覆盖刀槽花纹的延伸长度的1/6的两个区域是端部区域; 覆盖与两个端部区域相邻的刀槽花纹的延伸长度的1/6的两个区域是中间区域，覆盖夹在两个中间区域之间的刀槽花纹的延伸长度的1/3的区域是中心地区。刀槽花纹具有至少一个弯曲部分，所述弯曲部分沿刀槽花纹的深度方向从刀槽花纹的一个端部区域沿着刀槽花纹的延伸方向连续地延伸。所述至少一个弯曲部分位于端部区域的轮胎径向外侧，而不是中央区域。

9. 发明授权

EP2174805B1 PNEUMATIC TIRE 有权
公开(公告)号：EP2174805B1
公开(公告)日：2013-09-18
申请号：EP08777010.3
申请日：2008-05-29
申请人： Bridgestone Corporation
发明人： KAJI, Yoshio , WATABE, Ryoichi , SAEKI, Kentaro , KUROKAWA, Makoto
IPC分类号： B60C11/12
CPC分类号： B60C11/12 , B60C11/1218 , B60C11/1263

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