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公开(公告)号：US12122188B2
公开(公告)日：2024-10-22
申请号：US17262169
申请日：2019-06-04
发明人： Masatoshi Shimizu
CPC分类号： B60C11/0304 , B60C9/28 , B60C11/1204 , B60C11/1236 , B60C11/1259 , B60C11/1272 , B60C11/1281 , B60C2011/0365 , B60C2011/1213
摘要： In a tread portion of a pneumatic tire, an average lateral groove width Lc of a center region is obtained by dividing the groove area of lateral grooves in the center region by a circumferential length of the center region, and an average lateral groove width Lsh of a shoulder region is obtained by dividing the groove area of lateral grooves in the shoulder region by a circumferential length of the shoulder region. A relationship between a tire average thickness Gc of the center region and a tire average thickness Gsh in the shoulder region satisfies 1.05≤(Gc/Gsh)≤1.35, a relationship between the average lateral groove width Lc of the center region and the tire average thickness Gc in the center region satisfies 0.07≤(Lc/Gc)≤0.12, and a relationship between the average lateral groove width Lsh of the shoulder region and the tire average thickness Gsh in the shoulder region satisfies 0.17≤(Lsh/Gsh)≤0.26.
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公开(公告)号：US20240174027A1
公开(公告)日：2024-05-30
申请号：US18386395
申请日：2023-11-02
发明人： Shogo IZAKURA , Yuto HASHIMOTO , Sho NAKAJIMA , Ryuhei SANAE
CPC分类号： B60C11/1218 , B60C11/03 , B60C11/0306 , B60C11/1281 , B60C2011/1213
摘要： A tire includes first blocks with zigzag first sipes. Each first sipe includes a tie-bar locally raising radially outwardly from the sipe bottom to divide the first sipe into first and second portions. The sipe bottoms of the first and second portions extend in a zigzag shape in a cross-section parallel to the ground contact surface. The sipe bottom of the first portion communicates with a first widening portion having a circular cross-sectional shape with a groove width greater than a width of the first portion and extending in a zigzag shape along the first portion. The sipe bottom of the second portion communicates with a second widening portion having a circular cross-sectional shape with a groove width greater than a width of the second portion and extending in a zigzag shape along the second portion. The first and second widening portions do not communicate with each other.
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公开(公告)号：US20240059103A1
公开(公告)日：2024-02-22
申请号：US18256048
申请日：2021-06-02
发明人： Isao KUWAYAMA , Shintaro HATANAKA
CPC分类号： B60C11/1281 , B60C11/1236 , B60C3/00 , B60C11/0306 , B60C2200/04 , B60C2011/129
摘要： The pneumatic tire for passenger vehicles according to the present disclosure comprises a carcass consisting of plies of radially arranged cords, spanning toroidally between a pair of bead portions; the cross-sectional width SW and the outer diameter OD of the tire satisfy a given relationship; the land portion has a plurality of width direction sipes extending in the tire width direction; the pitch length in the tire circumferential direction of the plurality of width direction sipes is 3 mm to 10 mm; and the width direction sipe has a widened portion on the sipe bottom side where the sipe width is larger than that on the tread surface side.
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公开(公告)号：US11904635B2
公开(公告)日：2024-02-20
申请号：US17929257
申请日：2022-09-01
发明人： Kengo Fukuda , Ryota Ikeda , Yuto Ohte , Kohei Miyoshi
CPC分类号： B60C11/0304 , B60C11/1204 , B60C11/1236 , B60C11/1281 , B60C2011/0353 , B60C2011/1209
摘要： A tread portion 2 includes four circumferential grooves 3 and five land portions 4. 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 four circumferential grooves 3 include a shoulder circumferential groove 5. The five land portions 4 include a shoulder land portion 11 and a middle land portion 13. The middle land portion 13 is provided with a plurality of middle sipes 30. The shoulder land portion 11 is provided with a plurality of shoulder sipes 20 each extending from the shoulder circumferential groove 5 to a position beyond a tread end. At least one of the shoulder sipes 20 includes an inclined portion 21. A maximum angle of the inclined portion 21 with respect to a tire axial direction is not greater than a maximum angle of the middle sipe 30 with respect to the tire axial direction. A difference between the maximum angle of the inclined portion 21 and the maximum angle of the middle sipe 30 is not greater than 5°.
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公开(公告)号：US20230373254A1
公开(公告)日：2023-11-23
申请号：US18247064
申请日：2021-09-21
发明人： Peter Lacko , Michal Vojtus , Spencer Shadomy , Nico Meier
IPC分类号： B60C11/12
CPC分类号： B60C11/1218 , B60C11/1236 , B60C11/1263 , B60C11/1281
摘要： The invention relates to a pneumatic vehicle tire, in particular utility vehicle tire, having a tread with at least one profile rib (1) which runs around in the circumferential direction, is delimited on at least one side by a circumferential groove (2a) formed to a profile depth (T1), and is traversed by sipes (3), which extend parallel to one another and at an angle of 0° to 50° in relation to the axial direction at least in groups in plan view and have a width (bE) of 0.4 mm to 3.0 mm, wherein each sipe (3) has a sipe main portion (3b) extending over the majority of its extent and by way of a respective sipe edge portion (3a) leads into each circumferential groove (2a) delimiting the profile rib (1), wherein the sipe main portion (3b) and the sipe edge portion (3a) have a respective depth (ta, tb) in a radial direction and the depth (ta) of the sipe main portion (3b) differs from the depth (tb) of the sipe edge portion (3a).
The depth (tb) of the sipe main portion (3b) is less than the depth (ta) of the sipe edge portion (3a), wherein, in the interior of the profile rib (1), the sipe edge portion (3a) over its entire extent leads into a cavity (4, 4I to 4IV) that extends from the circumferential groove (2) and is made wider than the sipe (3).-
公开(公告)号：US20230311578A1
公开(公告)日：2023-10-05
申请号：US18128168
申请日：2023-03-29
发明人： Jae Hyuk SIM , Su Bin CHOI
IPC分类号： B60C11/12
CPC分类号： B60C11/1218 , B60C11/1281
摘要： There is provided a technology for minimizing shape deformation of a block formed on a tire in a case of braking, driving, or the like of the tire. There is provided a tire with an interlocking band type 3D kerf according to the embodiment of the invention, including a kerf having a road holding part which is a space formed in the block by extending in a direction inward to the tire from a ground contact surface of the block that comes into contact with a road, a projection part which is a space in the block with both side wall surfaces that is formed by extending from the road holding part and at which a protrusion portion having a shape projecting from one side wall surface is formed, and a base part which is a space in the block that is formed by extending from the projection part.
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公开(公告)号：US11685195B2
公开(公告)日：2023-06-27
申请号：US16763961
申请日：2018-11-15
发明人： Ryouichi Tomomatsu
CPC分类号： B60C11/1281 , B60C11/1204 , B60C11/1259 , B60C11/0304 , B60C2011/0341 , B60C2011/0348 , B60C2011/0381 , B60C2011/1254
摘要： A tread pattern of a pneumatic tire includes continuous lands provided in half treads on first and second sides, circumferential main grooves, and sipes having a chamfered configuration. The sipes extend inward in a lateral direction from the circumferential main grooves and are closed in the middle of regions of the continuous lands. An edge shape of each of sipes on the first side includes an extending portion extending inward in the lateral direction constantly in an extension direction and a bent portion that is provided to be joined to an end of the first extending portion and that has the edge shape bent from the extension direction of the first extending portion to a direction close to the circumferential direction. Every portion of the first extending portion and the bent portion of the sipes are provided with a main body portion and a sipe chamfered portion.
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公开(公告)号：US20190193476A1
公开(公告)日：2019-06-27
申请号：US16331502
申请日：2017-09-04
CPC分类号： B60C11/1281 , B60C5/00 , B60C11/03 , B60C11/0302 , B60C11/12 , B60C11/1204 , B60C11/1236 , B60C11/1259 , B60C2011/1213
摘要： Provided is a pneumatic tire. A sipe includes, on each of a leading side edge and a trailing side edge, a chamfered portion and a non-chamfered region including no other chamfered portion. The maximum depth of the chamfered portion is shallower than the maximum depth of the sipe, and the sipe width is substantially constant. In a cross-sectional view, at least one chamfered portion includes a profile line that is convex inward in a tire radial direction with respect to a chamfer reference line connecting both ends of the chamfered portion; and a cross-sectional area of a chamfered region that is surrounded by the profile line, the sipe, and a tread contact surface of a tread portion is equal to or greater than a cross-sectional area of a reference region, the reference region being surrounded by the chamfer reference line, the sipe, and the tread contact surface.
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公开(公告)号：US20190184758A1
公开(公告)日：2019-06-20
申请号：US16207708
申请日：2018-12-03
发明人： Makoto SUEISHI
CPC分类号： B60C11/11 , B60C11/01 , B60C11/0306 , B60C11/0332 , B60C11/1281 , B60C2011/0334 , B60C2011/1227 , B60C2011/1286 , B60C2200/10 , B60C2200/14
摘要： A motorcycle tyre for traveling on rough terrain, the tyre includes a tread portion provided with blocks. The at least one of the blocks includes a ground contact surface having a pair of lateral edges extending in a tyre axial direction. The at least one of the blocks is provided with a pair of lateral narrow grooves extending in the tyre axial direction on the ground contact surface to form a pair of edge-side portions defined between the pair of lateral narrow grooves and the pair of lateral edges. The at least one of the pair of edge-side portions includes a neck portion having a minimum circumferential length thereof, wherein a circumferential length of the at least one of the pair of edge-side portions increases toward axially both sides from the neck portion.
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公开(公告)号：US20180319219A1
公开(公告)日：2018-11-08
申请号：US15964826
申请日：2018-04-27
发明人： Ryo OBA
CPC分类号： B60C11/0304 , B60C11/0302 , B60C11/0306 , B60C11/0332 , B60C11/1204 , B60C11/1236 , B60C11/1263 , B60C11/1281 , B60C2011/0334 , B60C2011/0344 , B60C2011/0353 , B60C2011/0358 , B60C2011/0365 , B60C2011/0372 , B60C2011/039 , B60C2011/1209
摘要： A tire tread is provided with a crown main groove, and outboard and inboard shoulder main grooves to divide the tread portion into an outboard crown land portion, an inboard crown land portion, an outboard shoulder land portion and an inboard shoulder land portion. The inboard shoulder land portion is provided with inboard shoulder lateral grooves connecting an inboard tread edge and the inboard shoulder main groove. The outboard shoulder land portion is provided with outboard shoulder lateral grooves extending axially inwardly from an outboard tread edge and terminating within the outboard shoulder land portion. The inboard crown land portion is provided with inboard crown lateral grooves extending from the inboard shoulder main groove and terminating within the inboard crown land portion. The outboard crown land portion is provided with outboard crown lateral grooves extending from the crown main groove and terminating within the outboard crown land portion.
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