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公开(公告)号：US12128712B2
公开(公告)日：2024-10-29
申请号：US17275318
申请日：2019-11-13
CPC分类号： B60C11/13 , B60C11/0302 , B60C2011/0348 , B60C2011/036 , B60C2011/0365 , B60C2011/0367 , B60C2200/06
摘要： A heavy truck tire tread with a rib (18) located between first (14) and second (16) tread grooves. A shoulder block (30) is adjacent the rib and at a shoulder edge of the tread, and a decouple groove (32) is present that decouples the shoulder block from the rib. The decouple groove is spaced from and free from engagement with the shoulder edge, and extends at least twice as long in the longitudinal direction than in the lateral direction. The width of the decouple groove is less than widths of the first and second tread grooves. The tread has an average void depth that does not go past a twenty percent line, where the twenty percent line is twenty percent of a full void depth located from an outer surface of the tread, and where the average void depth does not include decouple grooves and tread outboard from the decouple grooves.
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公开(公告)号：US20240227453A9
公开(公告)日：2024-07-11
申请号：US18379006
申请日：2023-10-11
发明人： Hiroki SHINOHARA
IPC分类号： B60C11/03
CPC分类号： B60C11/03 , B60C2011/0346 , B60C2011/0355 , B60C2011/0358 , B60C2200/06
摘要： A heavy duty pneumatic tire includes a crown circumferential groove, a shoulder circumferential groove, crown lateral grooves, and crown blocks. The crown circumferential groove includes crown first-side vertexes and crown second-side vertexes and thus zigzags. The shoulder circumferential groove includes shoulder inner-side vertexes and shoulder outer-side vertexes. The crown lateral grooves are disposed at two pitch intervals of a zigzag of the crown circumferential groove and connect between the crown first-side vertexes and the shoulder inner-side vertexes. The crown blocks have crown sub-grooves having a groove width less than a groove width of the crown lateral groove. The crown sub-groove includes at least two transverse grooves extending across the crown block.
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公开(公告)号：US20240208271A1
公开(公告)日：2024-06-27
申请号：US18554125
申请日：2021-06-29
申请人： Virgile AYGLON , Daniel McEachern HICKS , Tyler SITES , COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
IPC分类号： B60C11/12
CPC分类号： B60C11/1204 , B60C2011/1213 , B60C2011/1254 , B60C2200/06
摘要： A heavy truck tire tread that has a shoulder rib and shoulder groove is provided. A sipe is in the shoulder rib that extends from the shoulder groove to the lateral outer surface. A first end of a teardrop of the sipe is located at the lateral outer surface, and a second end at the shoulder groove. A middle section of the teardrop is located between the first and second ends in the lateral direction. A first transition is located between the first end and the middle section, and a second transition is located between the second end and the middle section and they both extend in the lateral and thickness directions. The entire middle section is farther from the upper surface in the thickness direction than any portion of the first or second ends are to the upper surface in the thickness direction.
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公开(公告)号：US12017483B2
公开(公告)日：2024-06-25
申请号：US17775947
申请日：2019-12-17
申请人： Compagnie Generale des Etablissements Michelin , Stefan Voss , Brian P. Gannon , Victor Abarotin , David C. Lung
发明人： Stefan Voss , Brian P. Gannon , Victor Abarotin , David C. Lung
CPC分类号： B60C11/1259 , B60C11/01 , B60C11/124 , B60C11/1281 , B60C2011/0348 , B60C2011/0397 , B60C2011/1268 , B60C2200/06
摘要： A tread (12) for a heavy truck tire is provided that has a bottom surface (14), a shoulder rib (16), and a sacrificial rib (20) located outboard from the shoulder rib (16) in a width direction. A decoupling void (30) is located between the shoulder rib (16) and the sacrificial rib (20). A decoupling void sipe (32) is in the shoulder rib (16) and opens at the shoulder rib upper surface (18) and at the decoupling void (30). The decoupling void sipe (32) extends in the thickness direction and is closer to the bottom surface (14) than the decoupling void (30) in the thickness direction.
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公开(公告)号：US11951773B2
公开(公告)日：2024-04-09
申请号：US17416004
申请日：2019-12-11
发明人： Frédéric Domprobst
IPC分类号： B60C11/117 , B60C11/03 , B60C11/12 , B60C11/13
CPC分类号： B60C11/0323 , B60C11/032 , B60C11/1236 , B60C11/1281 , B60C2200/06
摘要： Tread (1) for a tire of a heavy-duty vehicle, having a tread surface (10), this tread (1) comprising, near to each of its edges (11), a plurality of open wells (2) on the tread surface when new, these open wells (2) of depth Pmax being arranged circumferentially with a mean distance D between two consecutive open wells; each open well (2) being delimited by two main faces (21, 22) facing one another, this tread being such that each open well (2) is connected to at least one hidden cavity (32) formed within the tread, this hidden cavity (32) opening into a main face (21, 22) of said well.
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公开(公告)号：US20240010030A1
公开(公告)日：2024-01-11
申请号：US18253545
申请日：2021-11-09
发明人： Fumitoshi NOGUCHI
CPC分类号： B60C1/0025 , C08K3/04 , C08L7/00 , C08L9/00 , B60C1/0016 , B60C1/0041 , C08K2201/006 , B60C2200/06
摘要： Provided is a rubber composition fora tire. Thirty parts by mass or more of carbon black having a CTAB adsorption specific surface area of 100 m2/g or less is blended into 100 parts by mass of a conjugated diene-based copolymer that includes from 20 mass % to 60 mass % of a first conjugated diene-based copolymer containing an isoprene component and from 40 mass % to 80 mass % of a second conjugated diene-based copolymer containing syndiotactic-1,2-polybutadiene. The syndiotactic-1,2-polybutadiene has a content of a crystallized component of 90% or more, a melting point of 130° C. or lower, and a glass transition temperature Tg of −20° C. or higher. A content a crystallized component in the second conjugated diene-based copolymer is 30 mass % or less.
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公开(公告)号：US20230415521A1
公开(公告)日：2023-12-28
申请号：US18209924
申请日：2023-06-14
发明人： Masayuki YOSHINO
IPC分类号： B60C19/00
CPC分类号： B60C19/00 , B60C2019/004 , B60C2200/06
摘要： A tire 2 includes a pair of beads 10, a carcass 12, a pair of steel reinforcing layers 20, a pair of fiber reinforcing layers 26, and a tag member 28. Each bead 10 includes an apex 40. A carcass ply 48 included in the carcass 12 includes a ply body 50 and a pair of turned-up portions 52. An outer end PR1 of each fiber reinforcing layer 26 is located between an end PF of the turned-up portion 52 and an outer end PA of the apex 40. An RFID tag 62 of the tag member 28 is located between the end PF of the turned-up portion 52 and the outer end PA of the apex 40. In the fiber reinforcing layer 26, an outer end 60f of a second reinforcing ply 60 is located radially outward of an outer end 58f of a first reinforcing ply 58.
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公开(公告)号：US11850893B2
公开(公告)日：2023-12-26
申请号：US17616089
申请日：2020-06-04
发明人： Hichem Rehab , Sébastien Noel , Maxime Rolland , Patrick Dayet
CPC分类号： B60C15/0628 , B60C9/0007 , B60C9/04 , B60C15/024 , B60C2009/0269 , B60C2009/2012 , B60C2015/065 , B60C2200/06
摘要： A tire having a radial carcass reinforcement, made up of a single layer of reinforcing elements anchored in each of the beads by being turned up around a bead wire, reinforced by a stiffener. The two working crown layers are the only ones present to form the crown reinforcement over at least 75% of the width of the tread, the absolute value of the difference between the absolute values of the angles α2 and α1 being greater than 7°, α2 being greater than α1 in terms of absolute value, the mean angle α satisfying the relationship 13+131*exp(−L/100)
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公开(公告)号：US20230398815A1
公开(公告)日：2023-12-14
申请号：US18033751
申请日：2021-10-22
发明人： Clément ORAMBOT
CPC分类号： B60C11/0323 , B60C11/1236 , B60C11/1259 , B60C2200/06 , B60C2011/1245
摘要： A heavy-duty vehicle tire tread to improve resistance to chunking of the oblique sipes opening into the external cavities thereof and having at least one substantially longitudinal cut (3) with at least one external cavity (6) open onto the tread surface (2) along an open section (7) having a closed contour (8). Each cavity (6) is connected to two substantially longitudinal sipes (91) and to an oblique sipe (92) having a mean plot (M2) intersecting the contour (8) at a connection point (I). The mean plot (M2) forms an angle (A1, A2) strictly greater than 90° with at at least two straight lines (T1, T2) tangential to the contour (8) respectively at two points (I1, I2) of the contour (8) that are positioned on either side of the mean plot (M2) and at a curvilinear distance (d1, d2) from the connection point (1) at most equal to 2 mm.
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公开(公告)号：US11807055B2
公开(公告)日：2023-11-07
申请号：US17592674
申请日：2022-02-04
发明人： Daisuke Todoroki
CPC分类号： B60C9/2204 , B60C9/28 , B60C11/042 , B60C11/13 , B60C2009/2012 , B60C2009/2219 , B60C2011/0341 , B60C2011/0348 , B60C2011/0353 , B60C2011/0355 , B60C2011/0397 , B60C2200/06
摘要： A tire 2 has a nominal aspect ratio of 65% or less. The tire 2 includes a tread 4 and a band 34. The band 34 includes a full band 42 and a pair of edge bands 44 located outward of ends of the full band 42 in a radial direction. A narrow groove 56 is formed on a shoulder land portion 54s of the tread 4. The narrow groove 56 includes an inner groove wall 62u and an outer groove wall 62s. The inner groove wall 62u includes an inner recess portion 64 recessed inward in the axial direction, on a groove bottom side. The outer groove wall 62s includes an outer recess portion 66 recessed outward in the axial direction, on the groove bottom side.
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