-
公开(公告)号：US11890897B2
公开(公告)日：2024-02-06
申请号：US17042041
申请日：2019-03-26
Applicant: The Yokohama Rubber Co., LTD.
Inventor： Toyoaki Endo
CPC classification number: B60C11/0304 , B60C11/124 , B60C11/1204 , B60C11/1218 , B60C11/1236 , B60C11/13 , B60C11/1369 , B60C11/1376 , B60C2011/0367 , B60C2011/0383 , B60C2011/1245
Abstract: A tread pattern of a pneumatic tire includes circumferential main grooves, a land portion defined by the circumferential main grooves in the lateral direction, and sipes at intervals in a circumferential direction, the sipes connecting the circumferential main grooves with each other. Each of the sipes has a peak-like shape protruding to a first side in the circumferential direction. When, in a profile cross-section of the tread portion taken along the lateral direction, an arc passing through two land portion edge points at which a tread surface of the land portion is connected with groove wall surfaces of the circumferential main grooves and having a center point positioned on the equator line is set to a standard profile line, a profile line formed by the tread surface of the land portion is a swelling profile line protruding outward of the standard profile line in a radial direction.
-
公开(公告)号：US11878554B2
公开(公告)日：2024-01-23
申请号：US17131177
申请日：2020-12-22
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Takashi Okada , Saori Yoshida , Shunta Kokatsu
CPC classification number: B60C11/1204 , B60C11/0304 , B60C11/1236 , B60C11/1263 , B60C11/1272 , B60C11/1281 , B60C2011/0341 , B60C2011/1227 , B60C2011/1268 , B60C2011/1295
Abstract: A tyre includes a crown land portion, an outboard middle land portion, an outboard shoulder land portion, an outboard crown circumferential groove, an outboard shoulder circumferential groove, an inboard middle land portion, an inboard shoulder land portion, an inboard crown circumferential groove, and an inboard shoulder circumferential groove. The outboard middle land portion is provided with full-opened outboard middle sipe that are inclined to a tyre axial direction. The outboard middle sipes each have two opposite sipe-edge portions provided with chamfer portions. In each chamfer portion of each outboard middle sipe, chamfer widths at both ends of the outboard middle sipe are larger than a chamfer width of a central portion of the outboard middle sipe. The outboard shoulder land portion is provided with outboard shoulder sipes that are inclined in the same direction as the outboard middle sipes to the tyre axial direction.
-
公开(公告)号：US20230373247A1
公开(公告)日：2023-11-23
申请号：US18030850
申请日：2021-09-06
Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
Inventor： Kenji HAMAMURA
CPC classification number: B60C1/0016 , C08K3/04 , C08K3/36 , C08L7/00 , C08L9/06 , B60C11/0075 , B60C11/0008 , B60C11/1236 , B60C2011/0025 , B60C2011/0033 , B60C2011/0355
Abstract: A tire comprising a tread part, wherein a ratio (G/WL) of a tire weight G (kg) with respect to a maximum load capability WL (kg) of the tire is 0.0131 or less, the tread comprises at least one rubber layer composed of a rubber composition comprising a rubber component and a reinforcing filler, tan δ at 30° C. (30° C. tan δ) of the rubber composition is over 0.15, and complex modulus at 30° C. (E*30) of the rubber composition is less than 8.0 MPa, and a ratio (30° C. tan δ/G) of the 30° C. tan δ with respect to the G is 0.016 or more.
-
公开(公告)号：US11772431B2
公开(公告)日：2023-10-03
申请号：US17473289
申请日：2021-09-13
Applicant: Toyo Tire Corporation
Inventor： Yusuke Ikuno
CPC classification number: B60C11/1281 , B60C11/11 , B60C11/1204 , B60C11/1236 , B60C11/1369 , B60C2011/0358 , B60C2011/0381 , B60C2011/1213
Abstract: A pneumatic tire includes a block defined by first and second main grooves and first and second lateral grooves, wherein the block includes a slit having one end open to the first main groove and the other end terminating in the block, a first corrugated sipe having one end open to the first main groove and the other end terminating in the block, and a second corrugated sipe having one end open to the second main groove and the other end terminating in the block, the slit includes a notch groove and a center sipe, the center sipe includes a first portion extending from the notch groove toward the second main groove, and a second portion bent and extending from a terminal end of the first portion, and the first and second corrugated sipe are disposed in the tire circumferential direction across the center sipe.
-
公开(公告)号：US20230286324A1
公开(公告)日：2023-09-14
申请号：US18110027
申请日：2023-02-15
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Nozomi BAMBA , Shotaro ABE , Ryuhei SANAE , Sho NAKAJIMA
CPC classification number: B60C11/1281 , B60C11/0304 , B60C11/0302 , B60C11/1236
Abstract: A tire has a tread portion including a first shoulder land region. The first shoulder land region is provided with first shoulder sipes. Each of the first shoulder sipes is provided with a chamfered portion over an entire lengthwise range from a first longitudinal edge to a first tread edge. Each of the chamfered portions includes a first chamfered portion defined between a shoulder center position and the first longitudinal edge and a second chamfered portion defined between the shoulder center position and the first tread edge. The second chamfered portion has a chamfer volume smaller than a chamfer volume of the first chamfered portion.
-
Patent Agency Ranking
公开(公告)号：US20230271453A1
公开(公告)日：2023-08-31
申请号：US18104873
申请日：2023-02-02
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Toshiki HORIGUCHI , Yoshifumi KAWAGOE
CPC classification number: B60C11/0304 , B60C11/0302 , B60C11/04 , B60C11/1236 , B60C2011/0369
Abstract: A tire includes a first middle land portion having circumferentially extending first and second longitudinal edges. The first middle land portion is provided with middle lateral grooves. At least one of the middle lateral grooves includes a first groove portion extending in the tire axial direction from the first longitudinal edge, and a second groove portion extending in the tire axial direction from the second longitudinal edge. The first groove portion and the second groove portion are offset in the tire circumferential direction to form a pair of circumferential groove edges between a pair of groove edges of the first groove portion and a pair of groove edges of the second groove portion. A maximum groove depth of the first groove portion is different from a maximum groove depth of the second groove portion.
-
公开(公告)号：US11738603B2
公开(公告)日：2023-08-29
申请号：US17116392
申请日：2020-12-09
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Keiji Higuchi , Teppei Nakamichi , Tomohisa Kuriyama , Kengo Fukuda
CPC classification number: B60C11/1236 , B60C11/0304 , B60C11/1281 , B60C2011/036 , B60C2011/0353
Abstract: Provided is a tire including a tread portion. The tread portion can include three circumferential grooves and four land portions. The circumferential grooves can include two shoulder circumferential grooves and one crown circumferential groove. The land portions can include two shoulder land portions and two middle land portions. The two middle land portions can each include a circumferential sipe, a plurality of first middle lateral grooves, and a plurality of second middle lateral grooves. The two shoulder land portions can each include a plurality of shoulder lateral grooves extending from a tread end and terminating in the shoulder land portion.
-
公开(公告)号：US20230241924A1
公开(公告)日：2023-08-03
申请号：US18040088
申请日：2021-08-05
Applicant: The Yokohama Rubber Co., LTD.
Inventor： Takashi KIDESAKI
CPC classification number: B60C11/0304 , B60C11/0302 , B60C11/0306 , B60C11/1204 , B60C11/1236 , B60C11/1263 , B60C2011/1213 , B60C2011/1254 , B60C2011/0348
Abstract: A tire including, in a tread surface (12), a plurality of shoulder main grooves extending in a tire circumferential direction, a plurality of lug grooves (351) extending in a direction intersecting the shoulder main groove, and a plurality of blocks B defined by the shoulder main grooves and the lug grooves (351). The tread surface (12) of the block B includes circumferential narrow grooves (352) each extending in the tire circumferential direction and a plurality of sipes that are provided on both sides of the circumferential narrow grooves in a tire width direction so as to be separated from the circumferential narrow grooves (352) and are disposed side by side in the tire circumferential direction and extend in the tire width direction. The circumferential narrow groove (352) includes a shallow bottom portion (3521) and a deep bottom portion (3522) having different depths from the tread surface (12). The deep bottom portion (3522) has a depth from the tread surface (12) deeper than a depth of the shallow bottom portion (3521) and is provided in a central portion of the block B in the tire circumferential direction.
-
公开(公告)号：US11691459B2
公开(公告)日：2023-07-04
申请号：US17191721
申请日：2021-03-04
Applicant: Sumitomo Rubber Industries, Ltd.
Inventor： Kazuma Mori
CPC classification number: B60C11/1236 , B60C11/1218 , B60C11/1263 , B60C11/1272 , B60C2011/0016 , B60C2011/1213 , B60C2011/1227
Abstract: A tire comprises a tread portion. The tread portion is provided with a sipe. The sipe comprises four sipe segments: a first sipe segment, a second sipe segment, a third sipe segment, and a fourth sipe segment. At least one of the first sipe segment and the third sipe segment comprises an oscillated portion which extends in the radial direction of the tire, while oscillating in a lateral direction orthogonal to the length direction of the sipe in a cross section of the sipe orthogonal to the length direction. Each of the first sipe segment and the third sipe segment comprises the oscillated portion including an oscillating-start portion, and the oscillating-start portion of the first sipe segment is inclined with respect to the tire radial direction in the same direction as the oscillating-start portion of the third sipe segment.
-
公开(公告)号：US20230173850A1
公开(公告)日：2023-06-08
申请号：US17997040
申请日：2021-05-06
Applicant: BRIDGESTONE CORPORATION
Inventor： Yoshiki NAKATA , Mayuko KARASAWA
CPC classification number: B60C11/13 , B60C11/0302 , B60C11/0304 , B60C11/1218 , B60C11/1236 , B60C2011/0353 , B60C2011/0355 , B60C2011/0367 , B60C2011/1209
Abstract: A tire includes a first circumferential main groove 11 and a second circumferential main groove 12 in a tread surface 1. A resonator 21 is formed in an intermediate land portion 20 partitioned between the first circumferential main groove and the second circumferential main groove. The resonator has an auxiliary groove 211 whose both ends terminate within the intermediate land portion. The groove depths D1 of the first and second circumferential main grooves are 50% or less of the groove widths W2 of the first and second circumferential main grooves, respectively. The groove depth D3 of the auxiliary groove of the resonator is 70% or more of the groove depth D1 of the first circumferential main groove.
-
-
-
-
-
-
-
-
-
Search Results
422
records
(took 0.018 seconds)
