公开(公告)号：US20180326793A1

公开(公告)日：2018-11-15

申请号：US15775492

申请日：2016-11-11

Applicant: BRIDGESTONE CORPORATION

Inventor： Akinori ODA ,  Yuji KAJIYAMA

IPC: B60C11/12 ,  B60C11/03 ,  B60C11/11 ,  B60C11/01

CPC classification number: B60C11/1204 ,  B60C11/01 ,  B60C11/0304 ,  B60C11/0306 ,  B60C11/0327 ,  B60C11/033 ,  B60C11/11 ,  B60C11/1236 ,  B60C2011/0341 ,  B60C2011/0358 ,  B60C2011/0372 ,  B60C2011/0381 ,  B60C2011/0383 ,  B60C2011/1209 ,  B60C2011/1213 ,  B60C2011/1245 ,  B60C2011/129 ,  B60C2011/1295

Abstract: In a pneumatic tire 10 according to the present invention, as an average block edge component Dball is defined by an average of edge components of all blocks against a tire circumferential direction and an average sipe edge component Dsall is defined by an average of edge components of all sipes against the tire circumferential direction, a relation of 0.15≤(Dball/Dsall)≤0.48 is fulfilled.

公开(公告)号：US09981508B2

公开(公告)日：2018-05-29

申请号：US14916500

申请日：2014-09-03

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Yoshiaki Takemoto

IPC: B60C11/12 ,  B60C11/03 ,  B60C11/13

CPC classification number: B60C11/1236 ,  B60C11/0304 ,  B60C11/0306 ,  B60C11/0327 ,  B60C11/1281 ,  B60C11/1307 ,  B60C11/1392 ,  B60C2011/0334 ,  B60C2011/0341 ,  B60C2011/0358 ,  B60C2011/0381 ,  B60C2011/0383 ,  B60C2011/0388 ,  B60C2011/039 ,  B60C2011/1209 ,  B60C2011/1245 ,  B60C2011/1254

Abstract: It is a pneumatic tire 1 which is provided with a pair of shoulder land portions 4A defined between shoulder main grooves 3A and tread edges 2t by having the grooves 3A. At least one of the shoulder land portions 4A is provided with a plurality of shoulder lug grooves 5 and a plurality of shoulder sipes 6. The shoulder lug grooves 5 include first shoulder lug grooves 5A extending axially inward from the tread edge 2t and terminating without reaching the shoulder main groove 3A. The shoulder sipes 6 include first shoulder sipes 6A extending axially inward from the axially inner ends 5Ai of the first shoulder lug grooves 5A and connected to the shoulder main groove 3A, and second shoulder sipes 6B intersecting the first shoulder sipes 6A and extending in the tire circumferential direction.

公开(公告)号：US20180056726A1

公开(公告)日：2018-03-01

申请号：US15673542

申请日：2017-08-10

Applicant: Sumitomo Rubber Industries, Ltd.

Inventor： Hiroshi ARAI

IPC: B60C11/03 ,  B60C11/12

CPC classification number: B60C11/0304 ,  B60C11/0306 ,  B60C11/1236 ,  B60C2011/0346 ,  B60C2011/0365 ,  B60C2011/0383 ,  B60C2011/1209 ,  B60C2011/1245

Abstract: A tire comprises a tread portion having a tire equator C and a first tread edge Te1. The tread portion is provided with a first main groove extending continuously in the tire circumferential direction and a first land region. The first main groove is provided on its axially outer groove wall with recessed portions recessed axially outwardly and arranged in the tire circumferential direction. The first land region is provided with first lateral grooves each comprising a first portion connected with the first main groove to form an opening and a second portion having a groove width smaller than the first portion and disposed axially inside thereof. At least a part of the opening of at least one of the first lateral grooves faces one of the recessed portions in the tire axial direction.

公开(公告)号：US09884517B2

公开(公告)日：2018-02-06

申请号：US14441340

申请日：2013-10-18

Applicant: BRIDGESTONE CORPORATION

Inventor： Ataka Takei

IPC: B60C11/03 ,  B60C11/12

CPC classification number: B60C11/0304 ,  B60C11/0302 ,  B60C11/0306 ,  B60C2011/0346 ,  B60C2011/0351 ,  B60C2011/0353 ,  B60C2011/0358 ,  B60C2011/0374 ,  B60C2011/0388 ,  B60C2011/1213 ,  B60C2011/1227 ,  B60C2011/1245

Abstract: A pneumatic tire, having in a tread surface thereof a pair of circumferential grooves formed on respective sides of the tire equatorial plane in the middle, a rib-like central land portion row demarcated by the circumferential grooves, and a plurality of lateral grooves extending between the central land portion row and each tread end, comprises in each half region of the tread: a row of first intermediate blocks each having a circumferential length D2 and demarcated by the lateral grooves, the corresponding circumferential groove, and first longitudinal grooves; and a row of second intermediate blocks demarcated by the lateral grooves, the first longitudinal grooves, and second longitudinal grooves, wherein facing openings of the first/second longitudinal grooves adjacent in the tire circumferential direction are offset from each other, and provided that D1 represents a circumferential distance between adjacent ends of the adjacent first and second intermediate blocks, D1≦D2/2.

公开(公告)号：US09878584B2

公开(公告)日：2018-01-30

申请号：US14428156

申请日：2013-09-09

Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN ,  MICHELIN RECHERCHE ET TECHNIQUE, S.A.

Inventor： Vincent Martin ,  Damien Bardin ,  Catherine Houis

IPC: B60C11/117 ,  B60C11/12 ,  B60C11/03

CPC classification number: B60C11/0323 ,  B60C11/0306 ,  B60C11/032 ,  B60C11/1236 ,  B60C11/1281 ,  B60C2011/0346 ,  B60C2011/0348 ,  B60C2011/1213 ,  B60C2011/1245

Abstract: Tread for heavy vehicle tire, this tread having a tread surface in the new state, this tread comprising a plurality of cuts opening onto the tread surface in the new state and at least one channel internal to the tread, this channel being intended to form a new groove after the tread has partially worn away, furthermore, each channel is extended radially towards the tread surface by a sipe of the same orientation as said channel and of width L4, and in addition a plurality of sipes of width L3 intersect the sipe extending each channel to form a well, this well opening both onto the tread surface in the new state and into a channel, the tread according to the invention being such that, for at least for a plurality of wells (each well has—in a direction extending from the tread surface towards the channel, at least one maximum-section part and one reduced-section part, the reduced-section part having a cross-sectional area smaller than the cross-sectional area of the maximum-section part so as to limit the ingress of foreign bodies of determined dimensions into this well and, from there, into a channel.

公开(公告)号：US09604506B2

公开(公告)日：2017-03-28

申请号：US13814047

申请日：2011-08-04

Applicant: Naoya Ochi

Inventor： Naoya Ochi

IPC: B60C11/11 ,  B60C11/12 ,  B60C11/03

CPC classification number: B60C11/0316 ,  B60C11/0302 ,  B60C11/11 ,  B60C11/12 ,  B60C2011/036 ,  B60C2011/0372 ,  B60C2011/0374 ,  B60C2011/0388 ,  B60C2011/1209 ,  B60C2011/1245

Abstract: In a tread part (1), a tilted land portion (200) is divided into multiple blocks by a tilted narrow groove (300) and branched narrow grooves (350). Tilted main grooves (100) include an upper tilted main groove (101) and a lower tilted main groove (102). The branched narrow grooves (350) include first branched narrow grooves (350a) and second branched narrow grooves (350b). First blocks (210) and second blocks (220) have quadrilateral or pentagonal shapes. Of the first blocks (210), one first block and another first block adjacent to the one first block in a tilt direction KC have the same shape. Of the second blocks (220), one second block and another second block adjacent to the one second block in the tilt direction KC have the same shape.

公开(公告)号：US20150266345A1

公开(公告)日：2015-09-24

申请号：US14441340

申请日：2013-10-18

Applicant: BRIDGESTONE CORPORATION

Inventor： Ataka Takei

IPC: B60C11/03

CPC classification number: B60C11/0304 ,  B60C11/0302 ,  B60C11/0306 ,  B60C2011/0346 ,  B60C2011/0351 ,  B60C2011/0353 ,  B60C2011/0358 ,  B60C2011/0374 ,  B60C2011/0388 ,  B60C2011/1213 ,  B60C2011/1227 ,  B60C2011/1245

Abstract: A pneumatic tire, having in a tread surface thereof a pair of circumferential grooves formed on respective sides of the tire equatorial plane in the middle, a rib-like central land portion row demarcated by the circumferential grooves, and a plurality of lateral grooves extending between the central land portion row and each tread end, comprises in each half region of the tread: a row of first intermediate blocks each having a circumferential length D2 and demarcated by the lateral grooves, the corresponding circumferential groove, and first longitudinal grooves; and a row of second intermediate blocks demarcated by the lateral grooves, the first longitudinal grooves, and second longitudinal grooves, wherein facing openings of the first/second longitudinal grooves adjacent in the tire circumferential direction are offset from each other, and provided that D1 represents a circumferential distance between adjacent ends of the adjacent first and second intermediate blocks, D1≦D2/2.

Abstract translation: 一种充气轮胎，在其胎面上具有形成在所述轮胎赤道面的中间的各侧的一对周向槽，由所述周向槽划分的肋状中央陆部列，以及多个横向槽， 中心陆部排和每个胎面端包括在胎面的每个半区域中：一排第一中间块，每个第一中间块具有圆周长度D2并由横向槽划分，相应的周向槽和第一纵向槽; 以及由横向槽划分的一排第二中间块，第一纵向槽和第二纵向槽，其中在轮胎周向上相邻的第一/第二纵向槽的相对的开口彼此偏移，并且D1表示 相邻的第一和第二中间块的相邻端之间的圆周距离，D1和n1E; D2 / 2。

公开(公告)号：US08863797B2

公开(公告)日：2014-10-21

申请号：US12915090

申请日：2010-10-29

Applicant: Oliver Knispel

Inventor： Oliver Knispel

IPC: B60C11/11 ,  B60C11/12 ,  B60C11/03

CPC classification number: B60C11/1204 ,  B60C11/0302 ,  B60C11/1263 ,  B60C2011/1213 ,  B60C2011/1231 ,  B60C2011/1245 ,  Y10S152/03

Abstract: A vehicle wheel tire includes a tire tread having a circumferential center tread region in which block elements are arranged in a symmetric pattern on opposite sides of a tire circumferential equatorial centerplane. Symmetrically disposed block elements on opposite sides of the centerplane have a plurality of spaced apart and laterally extending wavy sipes extending across the block element. Selective pairs of adjacent sipes are interconnected by one or more circumferentially oriented notches. The wavy sipes have regions of varying depth and include one or more recessed region(s) and one or more non-recessed region(s). A circumferentially disposed notch interconnecting a pair of adjacent wavy sipes at opposite notch ends intersects the wavy sipes at non-recessed sipe regions.

Abstract translation: 车轮轮胎包括具有周向中心胎面区域的轮胎胎面，其中块状元件在轮胎周向赤道中心面的相对侧以对称图案布置。 在中心平面的相对侧上的对称设置的块元件具有延伸穿过块体元件的多个间隔开且横向延伸的波纹刀槽花纹。 相邻刀槽花纹的选择性对通过一个或多个圆周定向的切口相互连接。 波纹刀槽花纹具有不同深度的区域，并且包括一个或多个凹陷区域和一个或多个非凹陷区域。 在相对的切口端部处互连一对相邻的波纹刀槽花纹的周向设置的切口在非凹槽的刀槽花纹区域与波纹刀槽花纹相交。

公开(公告)号：US20130000805A1

公开(公告)日：2013-01-03

申请号：US13634141

申请日：2011-03-10

Applicant: Hiroshi Oodaira

Inventor： Hiroshi Oodaira

IPC: B60C11/117 ,  B60C11/12 ,  B60C11/11

CPC classification number: B60C11/11 ,  B60C11/1263 ,  B60C11/1281 ,  B60C2011/0372 ,  B60C2011/1209 ,  B60C2011/1213 ,  B60C2011/1227 ,  B60C2011/1245 ,  B60C2011/1254 ,  B60C2011/1268 ,  B60C2011/1286

Abstract: Provided is a pneumatic tire improved in on-ice friction properties of the tire, which is excellent in on-ice performance, in particular, on-ice braking performance. The pneumatic tire according to the present invention includes, in a tread portion surface located between both tread ends, a plurality of main grooves extending in a tire circumferential direction; a plurality of lateral grooves extending in a tire width direction, the lateral grooves each having one bent point so as to be in a convex shape in the tire circumferential direction between the main grooves and/or between the main groove and the tread end, the plurality of main grooves and the plurality of lateral grooves partition-forming a plurality of blocks each including a circumferential protrusion in a shape conforming to the convex shape of the lateral groove, the blocks each including at least one lateral sipe extending in the tire width direction in a shape conforming to the lateral grooves, in which the lateral sipe is equal in tire-width-direction dimension to the block having the lateral sipe disposed therein when both are projected onto the same plane which includes the tire rotation axis and is perpendicular to the block surface.

Abstract translation: 提供了一种提高轮胎的冰上摩擦性能的充气轮胎，其具有优异的冰上性能，特别是冰上制动性能。 根据本发明的充气轮胎在位于两个胎面端部之间的胎面部表面中包括在轮胎周向延伸的多个主槽， 沿轮胎宽度方向延伸的多个横向槽，横向槽各自具有一个弯曲点，以在主槽之间和/或主槽与胎面端之间的轮胎周向上呈凸形， 多个主槽和多个侧槽分隔成多个块，每个块包括符合横向槽的凸形形状的周向突起，该块各自包括沿轮胎宽度方向延伸的至少一个侧向刀槽花纹 其形状与横向槽相符合，其中当轮胎宽度方向尺寸与外侧刀槽花纹布置在其中时，两侧刀槽花纹相等，当两者都突出到包括轮胎旋转轴线的同一平面上并且垂直于 块表面。

公开(公告)号：US08020595B2

公开(公告)日：2011-09-20

申请号：US11791768

申请日：2005-11-30

Applicant: Yukihiro Kiwaki ,  Ryoichi Watabe ,  Kenichi Shibata ,  Kazuyoshi Tagawa

Inventor： Yukihiro Kiwaki ,  Ryoichi Watabe ,  Kenichi Shibata ,  Kazuyoshi Tagawa

IPC: B60C11/12

CPC classification number: B60C11/12 ,  B60C11/0302 ,  B60C2011/1213 ,  B60C2011/1231 ,  B60C2011/1245 ,  B60C2011/1277 ,  Y10S152/03

Abstract: A plurality of shallow grooves which are shallower than a sipe are formed on land sections formed on treads of a pneumatic tire. The shallow grooves are configured so that a total sectional area of the shallow grooves per unit area in a cross section in a tire width direction in at least one of tread end areas arranged at end sides of the tread surface in the tire width direction or land end areas arranged at portions adjacent to a drain main groove on the land sections becomes larger than a total sectional area of the shallow grooves per unit on the other areas.

Abstract translation: 在充气轮胎的胎面上形成的陆部上形成有比刀槽花纹浅的多个浅槽。 浅沟槽被构造成使得在布置在轮胎宽度方向上的胎面表面的端侧的至少一个胎面端区域中，在轮胎宽度方向上的横截面中的每单位面积的浅槽的总截面积 在陆部上与排水主槽相邻的部位配置的端部区域大于其他区域的每单位的浅槽的总截面积。