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公开(公告)号：US20230020083A1
公开(公告)日：2023-01-19
申请号：US17786370
申请日：2020-10-09
摘要： The tire comprises a crown, two sidewalls and two beads, each sidewall connecting each bead to the crown, a carcass reinforcement that is anchored in each bead and extends in each sidewall and radially on the inside of the crown, each bead comprising at least one continuous filamentary reinforcing element (40) comprising N≥2 circumferential turns which are radially superposed on one another. The continuous filamentary reinforcing element (40) comprises a radially outer free end (E1) and a radially inner free end (E2). At least one of the radially outer free end (E1) and the radially inner free end (E2) is threaded between two portions (50, 52) arranged radially on the outside and on the inside of the free end (E1, E2) in question.
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公开(公告)号：US20220348039A1
公开(公告)日：2022-11-03
申请号：US17755572
申请日：2020-10-23
发明人： Koji NISHIO
摘要： Provided is a pneumatic tire. A carcass line when 10% of a regular internal pressure is applied is composed of a curved line (S) connecting arcs having different radii of curvature and curved to project outward in a tire width direction and a curved line (T) curved to project inward in the tire width direction. A radius of curvature (Ri) at a point on the curved line (S) and a radius of curvature (Ri+1) at an adjacent point satisfy |Ri+1−Ri|/|(Ri+1+Ri)/2|≤0.25. An inclination (θS) and an inclination (θT) at a connection point (Q) of the curved line (S) and the curved line (T) satisfy |θS−θT|8°. A ratio (Hβ/Hα) between a radial height (Hα) at a maximum outer diameter position of a carcass layer and a radial height (Hβ) at a tire maximum width position satisfies Hβ/Hα ≥0.58.
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公开(公告)号：US20220314706A1
公开(公告)日：2022-10-06
申请号：US17596214
申请日：2020-06-11
发明人： Atsushi FUKUSHIMA
摘要： A bead portion of a pneumatic tire includes an annular bead structure in which a core part in which a bead core is covered with a resin, and a bead filler which is formed of a resin, are integrally formed. A plurality of concave portions and a plurality of convex portions are formed on a surface of the bead structure. Each of the concave portions is extended to and communicated with a tire radial direction outside end of the bead structure.
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公开(公告)号：US11413909B2
公开(公告)日：2022-08-16
申请号：US16069756
申请日：2017-01-12
发明人： Yasutaka Akashi
摘要： A pneumatic tire includes a bead core including circumferential portions made of metal wire bundled in rows disposed at each bead portion; and a carcass layer turned up at end portions around the bead cores from a tire inner side to an outer side; the bead cores including at least two central layers centrally located in a tire radial direction, at least one upper layer outward of the central layers in the radial direction, and at least one lower layer inward of the central layers in the radial direction; a number of the circumferential portions made of metal wire in the central layers is equal to each other and a maximum value; and a number of the circumferential portions made of metal wire in the upper layer(s) and the lower layer(s) being reduced by one from the maximum value for each layer away from the central layers.
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公开(公告)号：US20220185022A1
公开(公告)日：2022-06-16
申请号：US17456844
申请日：2021-11-29
发明人： Takeshi KANEKO
摘要： A tire includes a mounting direction indicator indicating a tire mounting direction with respect to a vehicle. Additionally, the tire includes a first circumferential groove and a second circumferential groove extending intermittently or continuously in a tire circumferential direction. Additionally, the second circumferential groove is located further on an inner side than the first circumferential groove in a vehicle width direction in a state in which the tire is mounted on a vehicle. In addition, a distance D1 from the tire equatorial plane to the groove center line of the first circumferential groove and a distance D2 from the second circumferential groove to the groove center line have the relationship D1
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公开(公告)号：US11331960B2
公开(公告)日：2022-05-17
申请号：US16770575
申请日：2018-12-04
发明人： Atsushi Tanno , Hiraku Kouda , Jun Matsuda , Masaaki Nagayasu , Yuki Sasaya , Ryohei Takemori
摘要： Of layers configuring a bead core of a pneumatic tire, the width W0 of one of the layers including the greatest number of rows, the width W1, W2 of other of the layers located respectively innermost and outermost in the radial direction satisfy W1>W2 and W2≤0.5×W0. The position of width W0 is inward in the radial direction of the center of the bead core. A carcass is folded and curved along the bead core and extends toward sidewalls where a folded back portion of the carcass contacts a body of the carcass. A rubber occupancy ratio in a closed region formed by the body and the folded back portion is 0.1% to 15%. The cross-sectional area S2 and hardness H2 of a filler outward of the carcass in the lateral direction, and the cross-sectional area S1 and the hardness H1 of the side reinforcing layer satisfy 0.12≤(S2×H2)/(S1×H1)≤0.50.
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公开(公告)号：US20220080781A1
公开(公告)日：2022-03-17
申请号：US17419955
申请日：2019-12-24
申请人： GOLDHOFER AG
发明人： Johan KOSTER , Horst HÄFELE
摘要： The invention relates to a heavy-load vehicle comprising at least one axle unit, the or each axle unit having at least one wheel, each wheel having at least one tire, at least one tire being a tubeless radial tire. The tubeless radial tire has an outer diameter of less than 755 millimeters (mm), and is adapted and configured for an internal pressure of at least 10 bar. In some instances, when used as a single tire, the tubeless radial tire has a load-bearing capacity per millimeter section width at a speed of 60 kilometers per hour (km/h) of at least 11 kilograms (kg).
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公开(公告)号：US20220024260A1
公开(公告)日：2022-01-27
申请号：US17413352
申请日：2019-12-13
发明人： Masayuki HASHIMOTO , Kohei SUZUKI , Tetsuo AMAMOTO
IPC分类号： B60C15/024 , B60C15/04 , B60C3/04 , B60C9/22
摘要： An outer diameter of a pneumatic tire 350 mm or more and 600 mm or less. As RW is defined by a rim width of a rim wheel assembled to the pneumatic tire and SW is defined by a tire width of the pneumatic tire, the relation of 0.78≤RW/SW≤0.99 is satisfied. A carcass has a carcass cord arranged along the tire width direction. The carcass cord is formed of a filament of steel. The outer diameter of the carcass cords is 0.7 mm or less, and a distance between adjacent carcass cords is 4.0 mm or less.
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公开(公告)号：US11207929B2
公开(公告)日：2021-12-28
申请号：US16065035
申请日：2016-12-14
发明人： Koji Nishio
IPC分类号： B60C15/00 , B60C15/06 , B60C15/02 , B60C1/00 , B60C15/024 , B60C15/04 , B60C3/04 , B60C17/00
摘要： A pneumatic tire mountable on a 15° tapered specified rim includes a bead core, a carcass, a steel cord reinforcing layer, a bead rubber layer, and a first reinforcing rubber layer. A distance from a second line segment to a third line segment is from 4 mm to 12 mm, a complex modulus of the first reinforcing rubber layer is from 6 MPa to 10 MPa, an elongation at break of the first reinforcing rubber layer is from 300% to 450%, a complex modulus of the second reinforcing rubber layer is from 10 MPa to 15 MPa, and a complex modulus of a shock absorbing rubber layer is from 2 MPa to 6 MPa.
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公开(公告)号：US11148477B2
公开(公告)日：2021-10-19
申请号：US16169658
申请日：2018-10-24
发明人： Yoshiki Kanaya
IPC分类号： B60C15/00 , B60C15/06 , B60C9/04 , B60C9/18 , B60C15/05 , B60C9/20 , B60C3/04 , B60C15/04 , B60C9/02
摘要： A heavy-duty pneumatic tire includes a section width being equal to or less than 335 mm, an aspect ratio being equal to or less than 55%, and a toroidal carcass extending between axially spaced bead portions through a tread portion and sidewall portions, wherein the carcass includes a carcass ply which includes a main portion and a turn-up portion, a belt layer disposed radially outward of the carcass in the tread portion, a sidewall rubber defining an outer sidewall profile of each sidewall portion, and a chafer rubber defining an outer bead profile of each bead portion, wherein in each bead portion, on a straight line that is perpendicular to the main portion of the carcass ply and passes a radially inner end of the sidewall rubber, the chafer rubber has a thickness of from 40% to 60% of a thickness of the bead portion.
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