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1. 发明授权

US10071601B2 Pneumatic tire having a zigzag center main groove and shoulder oblique grooves 有权
公开(公告)号：US10071601B2
公开(公告)日：2018-09-11
申请号：US14920372
申请日：2015-10-22
申请人： SUMITOMO RUBBER INDUSTRIES, LTD.
发明人： Dai Kurosawa , Takuya Sato
IPC分类号： B60C11/11 , B60C11/12 , B60C11/03 , B60C11/13
CPC分类号： B60C11/1236 , B60C11/0306 , B60C11/13 , B60C2011/0344 , B60C2011/0346 , B60C2011/0348 , B60C2011/0372 , B60C2011/0374 , B60C2011/0395 , B60C2011/1213 , B60C2011/1254
摘要： Each shoulder land region 4E defined by a shoulder circumferential main groove 3E is provided with a circumferential narrow groove 20 and axially inner and outer shoulder oblique grooves 22 and 21 extending therefrom. The axially outer shoulder oblique grooves 21 are inclined with respect to the tire axial direction to one direction. The axially inner shoulder oblique grooves 22 are inclined with respect to the tire axial direction to one direction opposite to that of the axially outer shoulder oblique grooves 21. Crown oblique grooves 8 are inclined with respect to the tire axial direction to one direction same as that of the axially outer shoulder oblique grooves 21. Imaginary extensions 21K of the axially outer shoulder oblique grooves 21 are not overlapped with openings Q1 of the axially inner shoulder oblique grooves 22 at the circumferential narrow groove 20. Imaginary extensions 22K of the axially inner shoulder oblique grooves 22 are not overlapped with openings Q2 of the crown oblique grooves 8 at the shoulder circumferential main groove 3E, and are not overlapped with openings Q3 of the axially outer shoulder oblique grooves 21 at the circumferential narrow groove 20. Imaginary extensions 8K of the crown oblique grooves 8 are not overlapped with openings Q4 of the axially inner shoulder oblique grooves 22 at the shoulder circumferential main groove 3E.

2. 发明申请

US20160129732A1 PNEUMATIC TIRE 审中-公开
标题翻译：气动轮胎
公开(公告)号：US20160129732A1
公开(公告)日：2016-05-12
申请号：US14920372
申请日：2015-10-22
申请人： SUMITOMO RUBBER INDUSTRIES, LTD.
发明人： Dai Kurosawa , Takuya Sato
IPC分类号： B60C11/03 , B60C11/13
CPC分类号： B60C11/0306 , B60C11/1236 , B60C11/13 , B60C2011/0344 , B60C2011/0346 , B60C2011/0348 , B60C2011/0372 , B60C2011/0374 , B60C2011/0395 , B60C2011/1213 , B60C2011/1254
摘要： Each shoulder land region 4E defined by a shoulder circumferential main groove 3E is provided with a circumferential narrow groove 20 and axially inner and outer shoulder oblique grooves 22 and 21 extending therefrom. The axially outer shoulder oblique grooves 21 are inclined with respect to the tire axial direction to one direction. The axially inner shoulder oblique grooves 22 are inclined with respect to the tire axial direction to one direction opposite to that of the axially outer shoulder oblique grooves 21. Crown oblique grooves 8 are inclined with respect to the tire axial direction to one direction same as that of the axially outer shoulder oblique grooves 21. Imaginary extensions 21K of the axially outer shoulder oblique grooves 21 are not overlapped with openings Q1 of the axially inner shoulder oblique grooves 22 at the circumferential narrow groove 20. Imaginary extensions 22K of the axially inner shoulder oblique grooves 22 are not overlapped with openings Q2 of the crown oblique grooves 8 at the shoulder circumferential main groove 3E, and are not overlapped with openings Q3 of the axially outer shoulder oblique grooves 21 at the circumferential narrow groove 20. Imaginary extensions 8K of the crown oblique grooves 8 are not overlapped with openings Q4 of the axially inner shoulder oblique grooves 22 at the shoulder circumferential main groove 3E.
摘要翻译：由肩部周向主沟3E限定的每个胎肩区域4E设置有从其延伸的周向窄槽20和轴向内肩部和外肩斜槽22和21。轴向外肩倾斜槽21相对于一个方向的轮胎轴向倾斜。轴向内肩倾斜槽22相对于轮胎轴向相对于与轴向外肩倾斜槽21的轴向相反的一个方向倾斜。凸形斜槽8相对于轮胎轴向相对于与该轮胎轴向相同的一个方向倾斜轴向外肩倾斜槽21的轴向外肩倾斜槽21的假想延伸部21K不与周向窄槽20处的轴向内肩斜槽22的开口Q1重叠。轴向内肩倾斜槽21的假想延伸部22K 槽22不与胎肩周向主槽3E处的胎冠斜槽8的开口Q2重叠，并且不与周向窄槽20处的轴向外肩斜槽21的开口Q3重叠。冠部的假想延伸部8K 斜槽8不与轴向内肩斜槽22的开口Q4重叠在胎肩周向主槽3E上。

3. 发明授权

US10442248B2 Tire 有权
公开(公告)号：US10442248B2
公开(公告)日：2019-10-15
申请号：US15385439
申请日：2016-12-20
申请人： Sumitomo Rubber Industries, Ltd.
发明人： Dai Kurosawa
IPC分类号： B60C11/03 , B60C11/04
摘要： A tire 1 has a tread portion 2 provided with: pair of axially innermost circumferentially continuously extending crown main grooves 3; outward transverse grooves 8 extending axially outwardly therefrom; and inward transverse grooves 9 extends axially inwardly extending therefrom. The crown main groove 3 is a zigzag groove comprising axially outer segments 15 and axially inner segments 16 extending in the tire circumferential direction, and oblique segments 17 connecting between the segments 15 and 16. The inward transverse grooves 9 are connected to axially inner intersections 18 at which the axially inner segments 16 intersect with the oblique segments 17. The outward transverse grooves 8 are connected to axially outer intersections 19 at which the axially outer segments 15 intersect with the oblique segments 17.

4. 发明授权

US11254167B2 Pneumatic tyre 有权
公开(公告)号：US11254167B2
公开(公告)日：2022-02-22
申请号：US16692799
申请日：2019-11-22
申请人： Sumitomo Rubber Industries, Ltd.
发明人： Dai Kurosawa
IPC分类号： B60C11/01 , B60C13/00 , B60C15/06 , B60C9/02 , B60C15/00
摘要： A pneumatic tyre includes a tread portion, two axially spaced sidewall portions extending radially inwardly from the tread portion, at least one of the sidewall portions being provided with a side protector that protrudes axially outwardly and having an inner end located radially outwardly of a tyre-maximum-width position, and two axially spaced bead portions connected to radially inward of the respective sidewall portions. Each bead portion includes a bead apex rubber having an outer end in the tyre radial direction being located radially inwardly of the tyre-maximum-width position. A radial length of a tyre inner region from a bead baseline to the outer end of each bead apex rubber is in a range of from 0.8 to 1.2 times a radial length of a tyre outer region from a radially outermost position of the tread portion to the inner end of the side protector.

5. 发明授权

US11155122B2 Pneumatic tire 有权
公开(公告)号：US11155122B2
公开(公告)日：2021-10-26
申请号：US15991201
申请日：2018-05-29
申请人： Sumitomo Rubber Industries, Ltd.
发明人： Dai Kurosawa
IPC分类号： B60C11/12 , B60C11/03 , B60C11/11
摘要： A pneumatic tire includes a tread portion being provided with blocks which are provided with sipes. When the tread portion is virtually divided into a crown area having a ¼ tread ground-contact width centered on a tire equator, a pair of middle areas each having a ⅛ tread ground-contact width and being adjacent to axially each side of the crown area and a pair of inner shoulder areas each having a ⅛ tread ground-contact width and being adjacent to axially outside the middle areas, the sipes comprise crown sipes having main portions included in the crown area, middle sipes having main portions included in the middle areas and shoulder sipes having main portions included in the inner shoulder areas. Depths of the crown sipes are smaller than depths of the middle sipes, and depths of the shoulder sipes are smaller than the depths of the middle sipes.

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