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公开(公告)号：US12049109B2
公开(公告)日：2024-07-30
申请号：US17254249
申请日：2019-05-14
发明人： Daisuke Watanabe
CPC分类号： B60C11/0304 , B60C11/033 , B60C11/1236 , B60C2011/0346 , B60C2011/0358 , B60C2011/0372 , B60C2011/0381 , B60C2011/0388 , B60C2011/039 , B60C11/04
摘要： Provided is a pneumatic tire. An outer side intermediate land portion and outer side shoulder land portion have lug grooves extending in a width direction while curving; one end of the lug grooves in the outer side shoulder land portion reaches a ground contact edge, while the other end terminates in the outer side shoulder land portion; one end of the lug grooves in the outer side intermediate land portion communicates with a shoulder main groove and the other end terminates in the outer side intermediate land portion; an opening end of the lug grooves in the outer side intermediate land portion with respect to the shoulder main groove exists on an extension line of the lug grooves in the outer side shoulder land portion; and a pair of lug grooves adjacent in the outer side intermediate land portion are disposed to not overlap each other in the circumferential direction.
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公开(公告)号：US20240157734A1
公开(公告)日：2024-05-16
申请号：US18055510
申请日：2022-11-15
发明人： Kiyoshi Ueyoko , Badal Das
CPC分类号： B60C11/04 , B60C9/20 , B60C9/263 , B60C2011/0386
摘要： A pneumatic tire may include: a carcass; a belt reinforcing structure comprising a plurality of belt layers that include at least one spiral belt layer and at least one zigzag belt layer; and a tread comprising two or more main grooves extending circumferentially continuously around the pneumatic tire and defining a plurality of ribs that include two axially outermost ribs. At 10% to 100% of rated pressure and no load, each of the two axially outermost ribs may be raised (e.g., by a gap of 1 mm to 7 mm) in relation to a respective next nearest rib located axially inward of the respective axially outermost rib.
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公开(公告)号：US11780271B2
公开(公告)日：2023-10-10
申请号：US17839483
申请日：2022-06-14
发明人： Yuto Ohte , Ryota Ikeda
CPC分类号： B60C11/1281 , B60C11/0302 , B60C11/0304 , B60C11/04 , B60C11/1236
摘要： A tread portion 2 can include an inner tread end, an outer tread end, circumferential grooves, and land portions. The circumferential grooves can include an inner shoulder circumferential groove and an outer shoulder circumferential groove. The land portions can include an inner shoulder land portion and an outer shoulder land portion. The inner shoulder land portion can include inner shoulder lateral grooves and inner shoulder sipes. The outer shoulder land portion can include outer shoulder lateral grooves and outer shoulder sipes. Each outer shoulder sipe can have a chamfered portion at each of sipe edges on both sides. The chamfered portion can have a chamfered width that increases from a terminating end side toward the outer shoulder circumferential groove.
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4.发明申请公开(公告)号：US20180354307A1
公开(公告)日：2018-12-13
申请号：US15771292
申请日：2016-10-26
CPC分类号： B60C9/2009 , B60C9/0007 , B60C9/0042 , B60C9/0064 , B60C9/1807 , B60C9/22 , B60C11/04 , B60C11/12 , B60C11/1204 , B60C11/1236 , B60C11/1259 , B60C11/1272 , B60C2009/0085 , B60C2009/1828 , B60C2009/2016 , B60C2009/2019 , B60C2009/2077 , B60C2009/2083 , B60C2009/209 , B60C2011/0358 , B60C2011/0362 , B60C2011/0365 , B60C2011/0367 , B60C2011/1213 , B60C2011/1254 , B60C2011/129
摘要： Technique to increase the endurance of tires comprising two crossed working layers (41, 42), comprising mutually parallel reinforcing elements that form, with the circumferential direction (XX′) of the tire, an angle which is at least equal to 20° and at most equal to 50°. The reinforcing elements are made up of individual metal threads or monofilaments having a cross section which is at least equal to 0.20 mm and at most equal to 0.5 mm. The tire also comprises axially exterior sipes (24) having a mean width W at most equal to 1 mm, of a depth D at least equal to 5 mm and spaced apart, in the circumferential direction (XX′), by a circumferential spacing P at least equal to 4 mm, and axially exterior grooves (25) having a mean width W at least equal to 1 mm, of a depth D at most equal to 5 mm.
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公开(公告)号：US20180333992A1
公开(公告)日：2018-11-22
申请号：US15983816
申请日：2018-05-18
CPC分类号： B60C11/12 , B60C11/0306 , B60C11/032 , B60C11/0323 , B60C11/04 , B60C11/11 , B60C11/1281 , B60C11/1392 , B60C2011/1209 , B60C2011/1231 , B60C2011/1268
摘要： Tire with radial carcass reinforcement having a tread of thickness E, this tread having a tread surface and at least one cut opening onto the tread surface to form edge corners. The cut extends into the tread over a total depth H. The cut is in the form of a sipe having a width D. There is also formed, in the vicinity, i.e. at a minimum distance from the said edge corner that is at most equal to five times the width D of the cut, of at least one edge corner of this cut and on the tread surface, at least one cavity having a depth h that is small in comparison with the depth of the cut, i.e. that is at most equal to 30% of the depth H. The at least one cavity reduces the compression rigidity of the tread in the vicinity of the the at least one edge corner.
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公开(公告)号：US20180264896A1
公开(公告)日：2018-09-20
申请号：US15539451
申请日：2015-12-17
CPC分类号： B60C19/002 , B60C9/1807 , B60C11/0306 , B60C11/032 , B60C11/04 , B60C11/1353
摘要： Present disclosure provides a tire including a summit surrounded on both sides by sidewalls, including a carcass reinforcement extending in the summit and the sidewalls, and anchored at its two ends in the beads, the carcass reinforcement being surmounted radially on the outside by a summit reinforcement composed of a plurality of reinforcing plies, said summit reinforcement being surmounted radially on the outside by a tread intended to come into contact with a ground during use of the tire, the tire comprising in its summit, at least one cavity acting as a resonator and in fluid communication with the outside of the tire, when the tire is mounted onto a mounting rim each cavity having an appropriate volume to form a calibrated resonator to attenuate the noise in a frequency range between 500 and 2000 Hz.
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公开(公告)号：US20180244111A1
公开(公告)日：2018-08-30
申请号：US15757480
申请日：2016-08-15
发明人： Fang ZHU , Stefan VOSS , Victor ABAROTIN
CPC分类号： B60C11/0323 , B60C11/0302 , B60C11/0306 , B60C11/04 , B60C11/1218 , B60C11/1281 , B60C2011/1209 , B60C2011/1213 , B60C2011/1227 , B60C2011/129 , B60C2200/06
摘要： The invention provides for a heavy truck tire tread (1) having a longitudinal direction, a lateral direction and a thickness direction, said tread having a ground-engaging contact surface (CS) and comprising at least four main longitudinal grooves (3, 4, 5, 6) defining at least five main longitudinal ribs (9, 10, 11, 12, 13), the at least four main longitudinal grooves comprising at least one and not more than three open grooves (3, 6) and at least two partially hidden grooves (4, 5), each of said at least two partially hidden grooves comprising openings (41, 51) to the ground-engaging contact surface (CS) and an undersurface channel (42, 52) that is connected to the openings by ducts (43, 53) extending substantially in the thickness direction, longitudinal sipes (44, 54) extending substantially along the longitudinal direction connecting successive openings to the channel, said tread comprising at least two non-shoulder main ribs (10, 11, 12), said at least two non-shoulder main ribs comprising lateral sipes (105, 115, 125) extending in the lateral direction, the tread comprising at least 120 of said lateral sipes, wherein for each partially hidden groove: a total surface area of all openings is less than 200 cm2; an average height of said channel is greater than 5 mm; and an average section area of said channel is greater than 15 mm2.
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公开(公告)号：US10059153B2
公开(公告)日：2018-08-28
申请号：US14766615
申请日：2014-02-04
发明人： Tokumasa Akashi
IPC分类号： B60C11/04 , B60C11/117 , B60C11/12 , B60C19/00 , B60C11/03
CPC分类号： B60C19/002 , B60C11/03 , B60C11/032 , B60C11/04 , B60C11/12 , B60C2011/0341
摘要： The pneumatic tire described herein is provided with, in a tread surface, at least two circumferential grooves continuously extending in a tread circumferential direction, and a resonator disposed in a land part defined between two circumferential grooves having different sectional areas of the at least two circumferential grooves, the resonator having an air chamber opened to a land part surface in a position separated away from the circumferential groove, one or more narrowed necks communicating the air chamber with one of the two circumferential grooves, and one or more narrowed necks communicating the air chamber with the other circumferential groove, wherein a sectional area S1 of the narrowed neck of the resonator, opened to a circumferential groove with a relatively large sectional area is smaller than a sectional area S2 of the narrowed neck of the resonator, opened to a circumferential groove with a relatively small sectional area.
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公开(公告)号：US20180215206A1
公开(公告)日：2018-08-02
申请号：US15747741
申请日：2016-07-08
CPC分类号： B60C11/04 , B60C11/01 , B60C11/0304 , B60C11/0306 , B60C11/032 , B60C11/12 , B60C11/1204 , B60C11/1236 , B60C11/125 , B60C11/13 , B60C11/1392 , B60C2011/013 , B60C2011/0346 , B60C2011/0348 , B60C2011/0353 , B60C2011/0355 , B60C2011/0358 , B60C2011/0365 , B60C2011/0367 , B60C2011/0381 , B60C2011/1209 , B60C2011/1213 , B60C2011/1295 , B60C2011/1361
摘要： A pneumatic tire comprises a tread surface comprising main grooves extending in a tire circumferential direction, at least two of the main grooves adjacent in the tire circumferential direction having a wave shape with periodic oscillation; adjacent land portions in a tire lateral direction formed by the main grooves; lug grooves disposed in a row in the tire circumferential direction in the land portion formed between the wave-shaped main grooves, the lug grooves intersecting the tire circumferential direction and communicating with the wave-shaped main grooves at both ends; and narrow grooves disposed between pairs of the lug grooves adjacent in the tire circumferential direction in a row in the tire circumferential direction, the narrow grooves intersecting the tire circumferential direction, communicating with one of the main grooves at a first end, terminating within the land portion at a second end, and having a narrower groove width than the lug grooves.
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公开(公告)号：US20180162172A1
公开(公告)日：2018-06-14
申请号：US15840049
申请日：2017-12-13
发明人： Takuya OJI
CPC分类号： B60C11/1218 , B60C11/00 , B60C11/03 , B60C11/0304 , B60C11/0306 , B60C11/032 , B60C11/04 , B60C11/12 , B60C11/1236 , B60C11/1263 , B60C11/1281 , B60C11/13 , B60C11/1353 , B60C2011/0355 , B60C2011/1209 , B60C2011/1254 , B60C2011/1361
摘要： A tire includes a tread part having main grooves each continuously extending in a tire circumferential direction, and land portions demarcated by the main grooves. The tread part has a tread surface, each of the land portions has slots formed such that each of the slots is recessed from the tread surface and extending from a first end to a second end in a curve forming an arc shape, and each of the slots has an opening edge on the tread surface such that the opening edge is forming a crescent shape that is gradually increased in width from the first end and the second end toward a longitudinal direction central portion of each of the slots.
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