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公开(公告)号：US20210309051A1
公开(公告)日：2021-10-07
申请号：US17278884
申请日：2019-06-18
发明人： Hiroaki Honda
摘要： In a pneumatic tire mountable on a 5°-tapered rim, a bottom of a bead core is inclined from 0°-5° in a direction in which the bottom diverges toward an outer side in a radial direction as the bottom extends from an inner side in the width direction toward an outer side in the width direction. Each bead portion includes a base, a toe, and a heel. The base is inclined from 8°-12° in a direction in which the bead base portion diverges toward the outer side in the radial direction as the base extends from the inner side toward the outer side in the width direction. The heel has a radius of curvature from 25-30 mm. A rim cushion rubber has a modulus at 100% elongation within a range from 5.0-8.0 MPa. The toe has a displacement between before and after mounting on the rim from 9.0-13.5 mm.
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公开(公告)号：US11077723B2
公开(公告)日：2021-08-03
申请号：US15813587
申请日：2017-11-15
发明人： Haruyuki Sano
摘要： A pneumatic tire 1 comprises an annular bead core 5 embedded in each bead portion 4 of the tire. The bead core 5 is composed of a plurality of wire rings 10 each of which is made of a spirally overlap-wound bead wire 11 and which are arranged in the tire axial direction. The wire rings 11 include a first ring 13 whose bead wire 11 is a twisted cord 13a made of a plurality of filaments 15 twisted together, and a second ring 14 whose bead wire 11 is a monofilament cord 14a made of a single filament.
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公开(公告)号：US10981421B2
公开(公告)日：2021-04-20
申请号：US16197476
申请日：2018-11-21
发明人： Yu Miyazaki
摘要： A tire comprises shoulder blocks and middle blocks having ground contacting surfaces respectively provided with narrow grooves and each including a circumferential groove portion. The tire further comprises bead apex rubbers each extending from respective one of bead cores and each of the bead apex rubbers includes an extended portion extending to a position on an inner side in a tire axial direction of a first reference line passing through the circumferential groove portion of each of the shoulder blocks.
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公开(公告)号：US20200369096A1
公开(公告)日：2020-11-26
申请号：US16621486
申请日：2018-05-22
发明人： Seiji KON , Yoshihide KOUNO
摘要： A manufacturing method of a bead core of the present disclosure comprises an annular body forming step of winding a strip member formed by coating one or more bead wires with a coating resin to form an annular body, and a resin coating step of coating the annular body formed in the annular body forming step with a resin.
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公开(公告)号：US20200282777A1
公开(公告)日：2020-09-10
申请号：US16766209
申请日：2017-12-01
发明人： Xiang LIU , Weigang MIAO , Haidong YAO
IPC分类号： B60C15/04
摘要： Disclosed are a cable bead and a tire. The cable bead includes a core wire located at the middle position of the bead and at least one layer of outer winding wires wound around the core wire, each layer of outer winding wires being evenly wounded along the circumferential direction of the core wire, where the cross section of the outer winding wires is a flat surface having a major axis and a minor axis; the major axis is perpendicular to the radial direction of the cross section of the bead, and the minor axis is parallel to the radial direction of the cross section of the bead; the outer winding wires are in surface contact with the core wire; and when there are at least two layers of outer winding wires, a line contact is formed between the layers of outer winding wires.
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公开(公告)号：US10696097B2
公开(公告)日：2020-06-30
申请号：US15535908
申请日：2015-12-04
发明人： Marc Francia , Yves Potin , Florian Vilcot
摘要： The tire has a load index that is at least 118 and two layers of reinforcing elements. Each of the layers has a breaking force per unit width that is higher than 2900 daN/dm. A minimum strength per unit width, measured for an elongation of less than 10%, of the second layer is greater than 20% of the minimum strength per unit width, measured for an elongation of less than 10%, of the first layer. The reinforcing elements of the first layer have a thread count that is higher than 300 tex. The reinforcing elements of the two layers have a thread count of less than 750 tex. The elongation of the reinforcing elements of the second layer are greater than 8% under a force of 20 daN and the secant elastic modulus values under tension at 10% elongation, Mt, Mj, satisfy the relationship Mt/Mj≥1.
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公开(公告)号：US10562355B2
公开(公告)日：2020-02-18
申请号：US14783243
申请日：2014-04-09
摘要： A tire for a motor vehicle having at least one carcass ply comprised of a crown portion and two axially opposite side portions terminating in beads for mounting the tire on a rim. A tread band and a belt structure are interposed between the carcass structure and the bead. Each bead includes on elongated cord comprised of a first yarn, such as aramid, having a melting or decomposition point T1, and a second yarn, such as nylon, having a melting point T2, wherein T1>T2, and T2 is greater than 40° C.
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公开(公告)号：US20200039300A1
公开(公告)日：2020-02-06
申请号：US16654392
申请日：2019-10-16
发明人： Hideaki FUKAGAWA
摘要： Provided are: a cable bead which can realize a weight reduction while maintaining the breaking pressure resistance; and an airplane tire including the same. A cable bead (10) includes: a core (1) composed of an annularly formed steel; and a sheath (3) composed of at least one sheath layer, which is formed by spirally winding a sheath filament (2) composed of a steel around the core (1). The sheath filament (2) has a carbon content of higher than 0.90% by mass but 0.95% by mass or less, and a chromium content of 0.15 to 0.30% by mass.
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公开(公告)号：US20200031175A1
公开(公告)日：2020-01-30
申请号：US16466063
申请日：2017-11-27
发明人： Akihito SATO
摘要： A heavy load tire includes a bead core formed by a bead wire wound plural times in a ring shape, and a rubber sheet formed of a rubber material. The rubber sheet is wound on a region including one end portion and another end portion of the bead wire. The one end portion is served as an end portion closest to another end portion in a tire circumferential direction.
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公开(公告)号：US20190381839A1
公开(公告)日：2019-12-19
申请号：US16207763
申请日：2018-12-03
发明人： Kyung Ho KIM
摘要： Disclosed herein is a bead reinforcing device for pneumatic tires, which includes a bead forming a circumference of a tire as a portion where the tire is in contact with a wheel, a carcass formed to cover the bead from its inside to its outside and forming an entire frame of the tire, and a bead stiffener formed to cover an entire outer surface of the bead.
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