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公开(公告)号：US20240100887A1
公开(公告)日：2024-03-28
申请号：US18373287
申请日：2023-09-27
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Takashi SUGIURA
CPC classification number: B60C11/1369 , B60C11/1204 , B60C11/1236 , B60C11/1259 , B60C2011/0346
Abstract: A heavy duty tire can have a tread portion that includes a plurality of circumferential grooves that zigzag, a plurality of lateral grooves connecting between zigzag vertexes of the circumferential grooves, and a plurality of hexagonal blocks formed by the circumferential grooves and the lateral grooves. A groove depth of the circumferential groove can be 21 mm or more. Each of the hexagonal blocks can include a three-dimensional sipe extending across the hexagonal block. The lateral groove can include a raised portion formed by raising a groove bottom of the lateral groove to connect between the hexagonal blocks adjacent to each other in the tire circumferential direction.
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公开(公告)号：US11912069B2
公开(公告)日：2024-02-27
申请号：US17929236
申请日：2022-09-01
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Kohei Miyoshi , Ryota Ikeda , Yuto Ohte
CPC classification number: B60C11/0306 , B60C11/0304 , B60C11/1204 , B60C2011/0341
Abstract: Provided is a 5-rib tire that can have improved steering stability and noise performance A tread portion 2 includes four circumferential grooves 3 and five land portions 4. Two tread ends are ends of a 50%-load ground-contact surface. Each of the five land portions 4 is provided with no groove having a groove width greater than 2.0 mm, and is provided with only sipes 9. The five land portions 4 include a shoulder land portion 11. The shoulder land portion 11 is provided with a plurality of shoulder sipes 20. At least one of the shoulder sipes 20 includes an inclined portion 21 and an axial portion 22. The axial portion 22 cross the tread end.
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公开(公告)号：US11878555B2
公开(公告)日：2024-01-23
申请号：US17691956
申请日：2022-03-10
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Ryotaro Kitahara , Hiroshi Yamaoka
CPC classification number: B60C11/1204 , B60C11/1236 , B60C2011/039 , B60C2011/0353
Abstract: A tire includes a tread portion including a first land portion, the first land portion being provided with a plurality of first sipes. The plurality of first sipes extends in an arc shape manner. The plurality of first sipes is arranged on the first land portion without communicating with lateral grooves extending in a tire axial direction. In a tread plan view, a virtual sipe reference line of each of the plurality of first sipes has an angle equal to or less than 10 degrees with respect to a tire circumferential direction, wherein the virtual sipe reference line is a straight line that connects both ends of each of the plurality of first sipes.
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公开(公告)号：US11872845B2
公开(公告)日：2024-01-16
申请号：US17931427
申请日：2022-09-12
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Ryota Ikeda
CPC classification number: B60C11/1204 , B60C11/1272 , B60C2011/0341
Abstract: A tire includes a tread portion including four circumferential grooves extending continuously in the tire circumferential direction and five land portions divided by the four circumferential grooves. The five land portions include a first middle land portion located between a first tread edge and a tire equator. The first middle land portion is provided with first middle sipes inclined with respect to a tire axial direction and fully traversing the first middle land portion in the tire axial direction. Each first middle sipe includes a pair of sipe edges, and at least one of the pair of sipe edges opens at the ground contact surface via a chamfer portion over an entire length thereof. The chamfer portion has a chamfer width increasing continuously from a first longitudinal edge to a second longitudinal edge of the first middle land portion.
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公开(公告)号：US11858295B2
公开(公告)日：2024-01-02
申请号：US16472455
申请日：2017-12-13
Applicant: PIRELLI TYRE S.p.A.
Inventor： Diego Speziari , Roberto Bolzoni
CPC classification number: B60C11/1236 , B60C11/11 , B60C11/12 , B60C11/1204 , B60C2011/0346 , B60C2011/1213 , B60C2011/1254 , B60C2011/133 , B60C2200/14
Abstract: Tyre (100) for all-terrain vehicles having a tread band (2) comprising: —a central annular portion (A1), located across the equatorial plane (X-X), and two shoulder annular portions (A2, A3), separated from said central annular portion (A1) by two circumferential grooves (3, 4); said central annular portion (A1) having at least one circumferential row (8) of central blocks, comprising a plurality of central blocks (20), and at least two rows (9, 10) of lateral blocks, opposed to each other relative to said at least one circumferential row (8) of central blocks, and comprising a plurality of lateral blocks (21), wherein —said central blocks (20) have a first and a second portion (20a; 20b) located opposite to each other relative to the equatorial plane (X-X); —said central blocks (20) and said lateral blocks (21) have a circumferential dimension greater than 2% of the development extension of the tread of the tyre; —said lateral blocks (21) have an elongate portion (13) and a head portion (14) located at an end of said elongate portion (13); said elongate portion (13) having a dimension SI in axial direction and said head portion (14) having a dimension S2 in axial direction, where S2>S1; —the elongate portion (13) extends according to an extension direction forming an angle α relative to the equatorial plane comprised between 0° and 30°; —said elongate portion (13) has an axially outer lateral wall (15) facing one of said circumferential grooves (3, 4) and an axially inner lateral wall (16) facing one of said first and second portions (20a, 20b) of the central blocks (20); —said head portion (14) has a first transverse wall (17) located so as to form with said axially inner lateral wall (16) a concavity which points towards the equatorial plane (X-X) and is such that the first or the second portion (20a; 20b) of the central block (20) being subsequent in axial direction faces said concavity and is at least partially surrounded by said axially inner lateral wall (16) and by said first transverse wall (17).
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Patent Agency Ranking
公开(公告)号：US20230322028A1
公开(公告)日：2023-10-12
申请号：US18024466
申请日：2021-09-01
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Koichi NAKAJIMA
IPC: B60C11/12
CPC classification number: B60C11/1236 , B60C2011/1254 , B60C2011/1213 , B60C11/1204
Abstract: A tire comprises a tread portion including a land portion. In the land portion, closed sipes are arranged in a tire axial direction. Each of the closed sipes includes a first end, a second end, a first sipe piece extending in the tire axial direction on a first end side, a second sipe piece extending in the tire axial direction on a second end side, and a third sipe piece inclined with respect to the tire axial direction and positioned between the first sipe piece and the second sipe piece. The closed sipes arranged in the tire axial direction overlap each other in the tire axial direction.
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公开(公告)号：US20230311575A1
公开(公告)日：2023-10-05
申请号：US18104860
申请日：2023-02-02
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Masahiro YAO
CPC classification number: B60C11/0309 , B60C11/1236 , B60C11/1204 , B60C2011/1254
Abstract: The tire has first crown blocks each including a ground contacting surface and a block wall surface. The block wall surface includes a first block wall surface adjacent to crown grooves and a second block wall surface adjacent to a first shoulder circumferential groove. The first block wall surface is provided with a chamfered portion on the ground contacting surface side in a range of 50% or more of a length of the first block wall surface. The second block wall surface is either not provided with the chamfered portion or provided with the chamfered portion in a range of less than 50% of a length of the second block wall surface.
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公开(公告)号：US20230271454A1
公开(公告)日：2023-08-31
申请号：US18105643
申请日：2023-02-03
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Yoshifumi KAWAGOE
IPC: B60C11/12
CPC classification number: B60C11/1204 , B60C11/1236 , B60C2011/0367
Abstract: A tire includes a first middle land portion provided with middle lateral grooves that traverses the first middle land portion completely in the tire axial direction, and first middle sipes that extends from a first longitudinal edge of the first middle land portion and has terminal ends in the first middle land portion. Each middle lateral groove includes a first groove portion extending from the first longitudinal edge, a second groove portion extending from a second longitudinal edge, and a circumferential groove portion being in communication with the first and second groove portions. The circumferential groove portion includes a first circumferential groove edge on a first longitudinal edge side and a second circumferential groove edge on a second longitudinal edge side. The terminal ends of the first middle sipes are located on the second longitudinal edge side to the first circumferential groove edges of the circumferential groove portions.
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公开(公告)号：US20230264520A1
公开(公告)日：2023-08-24
申请号：US18172934
申请日：2023-02-22
Applicant: NOKIAN RENKAAT OYJ
Inventor： Mikko JOKINEN
CPC classification number: B60C11/1204 , B60C11/0306 , B60C2011/1213
Abstract: A tread block arrangement is for a tire or for a tread band for a tire. The tread block arrangement includes a tread block having at least a first sipe delimited by a first sipe wall, a second sipe wall and a bottom of the sipe. The first sipe wall and the second sipe wall are arranged parallel to each other and define a width (w) of the sipe. At least the first sipe wall has at least one inclined section in which a width of a surface of the first sipe wall in a longitudinal direction of the sipe and the width of the sipe increases towards the bottom of the sipe.
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公开(公告)号：US20230241927A1
公开(公告)日：2023-08-03
申请号：US18296453
申请日：2023-04-06
Applicant: TOYO TIRE CORPORATION
Inventor： Shingo Kuwano
CPC classification number: B60C11/1369 , B60C11/01 , B60C11/0327 , B60C11/11 , B60C11/1204 , B60C11/1236 , B60C13/02 , B60C2200/14 , B60C2011/013 , B60C2011/0358 , B60C2011/1213 , B60C2011/1254
Abstract: A pneumatic tire has paired bead portions, paired sidewall portions, a tread portion, a plurality of lug grooves extending from a shoulder area of the tread portion to reach a buttress area of the sidewall portion, and a block defined by the plurality of lug grooves. The block includes a shoulder block provided in the shoulder area, and a buttress block provided in the buttress area. The buttress area is provided with an annular rib annularly extending along a tire circumferential direction. The lug grooves are comparted into an outside lug groove positioned in an outer side of the annular rib, and an inside lug groove positioned in an inner side of the annular rib. A widened portion is provided in at least part of the plurality of lug grooves so as to enlarge a width of the annular rib.
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