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公开(公告)号：US11518200B2
公开(公告)日：2022-12-06
申请号：US16144312
申请日：2018-09-27
Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
Inventor： Naoki Yukawa , Toshiaki Suzuki , Takuya Sato
Abstract: A pneumatic tire is provided with a noise damper made of a sponge material attached to a radially inner surface of the tread portion. The noise damper has protruding portions protruding from a radially inner surface of a band-shaped base portion. The protruding portions extend from one edge to the other edge of the base portion in the widthwise direction, and arranged at intervals in the tire circumferential direction. In a cross section of the tire parallel with the tire equatorial plane, the radially inner surface of each of the protruding portions includes a flat portion, and the radially inner surface of the base portion includes an arc portion parallel with the inner surface of the tread portion.
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公开(公告)号：US09789733B2
公开(公告)日：2017-10-17
申请号：US14606152
申请日：2015-01-27
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Takuya Sato , Hiroyuki Nakayama
CPC classification number: B60C11/03 , B60C11/0304 , B60C11/0306 , B60C11/12 , B60C11/1259 , B60C11/1272 , B60C11/1369 , B60C11/1392 , B60C2011/0341 , B60C2011/0344 , B60C2011/0348 , B60C2011/0369 , B60C2011/0372 , B60C2011/0374 , B60C2011/0381 , B60C2011/0383 , B60C2011/0386 , B60C2011/039 , B60C2011/0395
Abstract: A pneumatic tire comprises a tread portion provided on each side of the tire equator with a middle land portion defined between a shoulder main groove and a crown main groove each extending continuously in the tire circumferential direction. The middle land portion is provided with axially inside middle lug grooves and axially outside middle lug grooves arranged alternately in the tire circumferential direction. The axially inside middle lug groove is connected to the crown main groove at an angle θ1 of from 20 to 45 degrees with respect to the tire circumferential direction and has an axially inner opened end and an axially outer closed end. The outside middle lug grooves is connected to the shoulder main groove at an angle θ2 of from 60 to 80 degrees with respect to the tire circumferential direction and has an axially outer open end and an axially inner closed end. The tread portion may be provided with a shoulder land portion comprising circumferential sipes, axial grooves terminating at the circumferential sipes, and a circumferentially continuous rib.
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公开(公告)号：US20160129732A1
公开(公告)日：2016-05-12
申请号：US14920372
申请日：2015-10-22
Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
Inventor： Dai Kurosawa , Takuya Sato
CPC classification number: B60C11/0306 , B60C11/1236 , B60C11/13 , B60C2011/0344 , B60C2011/0346 , B60C2011/0348 , B60C2011/0372 , B60C2011/0374 , B60C2011/0395 , B60C2011/1213 , B60C2011/1254
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：US10071601B2
公开(公告)日：2018-09-11
申请号：US14920372
申请日：2015-10-22
Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
Inventor： Dai Kurosawa , Takuya Sato
CPC classification number: B60C11/1236 , B60C11/0306 , B60C11/13 , B60C2011/0344 , B60C2011/0346 , B60C2011/0348 , B60C2011/0372 , B60C2011/0374 , B60C2011/0395 , B60C2011/1213 , B60C2011/1254
Abstract: 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.
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