公开(公告)号：US20240316994A1

公开(公告)日：2024-09-26

申请号：US18431268

申请日：2024-02-02

申请人： Sumitomo Rubber Industries, Ltd.

发明人： Kota MATSUURA

IPC分类号： B60C15/06

CPC分类号： B60C15/0635 ,  B60C15/0603 ,  B60C2015/061 ,  B60C2015/0614 ,  B60C2015/0678 ,  B60C2015/0682

摘要： A pneumatic tire includes a reinforcing filler arranged along a bead core. The reinforcing filler includes an inner portion extending in the tire radial direction, outer portion extending in the tire radial direction, and a middle portion extending in the tire axial direction on the radially inner side of the bead core so as to connect the inner portion and the outer portion. The outer portion has an outer end in the tire radial direction located radially inside an outer end in the tire radial direction of the inner portion and located radially outside a center position of a section height of the bead core in the tire radial direction.

公开(公告)号：US20240270026A1

公开(公告)日：2024-08-15

申请号：US18567240

申请日：2022-05-23

申请人： COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN

发明人： SOPHIE GANDER ,  GAEL ROTY ,  HERVE FERIGO

IPC分类号： B60C15/06 ,  B60C1/00 ,  B60C13/00 ,  B60C13/04

CPC分类号： B60C15/0603 ,  B60C1/0025 ,  B60C2013/006 ,  B60C2013/045

摘要： The rolling resistance of a tire has been improved without degrading industrial performance. The sidewall (30) consists of two sub-layers. A first sub-layer (FE1) of thickness E1 and volume V1 provides the expected protection functions of a sidewall as the outer wall of the tire, and a second sub-layer of the sidewall (FE2) of thickness E2 and volume V2 is optimized at low hysteresis to improve rolling resistance. The ratio V1/(V1+V2) of the volumes of the two sub-layers (FE1, FE2) is less than or equal to 0.3. The elongation at break of the compound of FE1 is greater than or equal to 200% measured at a temperature of 100° C., and the viscoelastic loss of the compound of FE2, Tan(δ)max, is less than or equal to 0.10.

公开(公告)号：US12005746B2

公开(公告)日：2024-06-11

申请号：US17528193

申请日：2021-11-17

申请人： Sumitomo Rubber Industries, Ltd.

发明人： Masahiro Nagase

IPC分类号： B60C11/00 ,  B29D30/06 ,  B60C11/03 ,  B60C15/00 ,  B60C15/06 ,  B60C13/00

CPC分类号： B60C15/0603 ,  B29D30/0606 ,  B60C11/0332 ,  B60C15/0036 ,  B60C2013/007 ,  B60C2015/061

摘要： A tire includes a tread, a pair of sidewalls, a pair of beads, and a carcass. Each bead includes a core and an apex. In the tire in the normal state, a ratio (HA/HS) of a distance HA in a radial direction from a bead base line to an outer end PA of the apex to a tire cross-sectional height HS may not be less than 20% and/or may not be greater than 30%, and an angle of a line segment connecting between the outer end PA of the apex and a center PM of a width, in an axial direction, of a contact surface of the apex at which the apex is in contact with the core, relative to the bead base line, may not be less than 45° and/or may not be greater than 55°.

公开(公告)号：US11964519B2

公开(公告)日：2024-04-23

申请号：US17289025

申请日：2019-10-31

申请人： BRIDGESTONE CORPORATION

发明人： Keiichi Hasegawa ,  Takayuki Kurata

IPC分类号： B60C15/06 ,  B60C15/00 ,  B60C15/05

CPC分类号： B60C15/05 ,  B60C15/0018 ,  B60C15/0603 ,  B60C15/0607

摘要： The bead portion of the tire has an inner bead provided inside the tire width direction of a carcass ply and an outer bead provided outside the tire width direction of the carcass ply. The inner bead and the outer bead have a bead core portion including a bead cord formed of a metal material, and a filler portion provided outside the tire radial direction of the bead core portion and formed of a resin material. The inner bead and the outer bead sandwich a carcass ply.

公开(公告)号：US11951777B2

公开(公告)日：2024-04-09

申请号：US18125734

申请日：2023-03-24

申请人： Sumitomo Rubber Industries, Ltd.

发明人： Masahiro Tatsuta ,  Junya Tamai ,  Tomohiko Hiroshige ,  Hiroki Sato

IPC分类号： B60C5/14 ,  B60C15/06

CPC分类号： B60C15/0603 ,  B60C15/0628 ,  B60C2015/061 ,  B60C2015/0682

摘要： A tire can include a pair of beads, a carcass, an inner liner, and an insulation located between the carcass and the inner liner. The carcass can include one carcass ply. The carcass ply can include a plurality of carcass cords and a topping rubber. Each carcass cord can have a total fineness of not less than 6000 dtex and not greater than 9000 dtex. The insulation can be located between first and second beads. A ratio (ta/td) of a thickness to of the topping rubber located between the insulation and the carcass cords to a thickness td of the insulation can be not less than 0.2 and not greater than 0.6.

公开(公告)号：US11752808B2

公开(公告)日：2023-09-12

申请号：US17694000

申请日：2022-03-14

申请人： Sumitomo Rubber Industries, Ltd.

发明人： Yohei Sato

IPC分类号： B60C15/06 ,  B60C15/04 ,  B60C15/024 ,  B60C13/00

CPC分类号： B60C15/04 ,  B60C15/024 ,  B60C15/06 ,  B60C15/0603 ,  B60C15/0628 ,  B60C2013/006 ,  B60C2013/007 ,  B60C2015/0614 ,  B60C2015/0617

摘要： A pneumatic tire comprises: a tread portion; a pair of sidewall portions; a pair of bead portions each with a bead core embedded therein; a toroidal carcass extending between the bead portions; and a sidewall rubber disposed axially outside the carcass in each of the sidewall portions. The bead portion has a bead bottom surface which contacts with a bead seat of a wheel rim when the tire is mounted thereon. The bead bottom surface comprises an axially inner region including a bead toe and an axially outer region including a bead heel. The axially inner region is formed by a canvas chafer. The axially outer region is formed by the sidewall rubber extended radially inwardly from the sidewall portion.

公开(公告)号：US11712930B2

公开(公告)日：2023-08-01

申请号：US16345672

申请日：2017-10-24

申请人： The Yokohama Rubber Co., LTD.

发明人： Koji Nishio

IPC分类号： B60C15/04 ,  B60C15/06 ,  B60C15/02

CPC分类号： B60C15/04 ,  B60C15/02 ,  B60C15/06 ,  B60C15/0603 ,  B60C15/0628 ,  B60C15/0635 ,  B60C2015/044 ,  B60C2015/0621 ,  B60C2015/0625 ,  B60C2015/0678 ,  B60C2015/0692 ,  Y10T152/10846

摘要： With a pneumatic tire not mounted on a rim, in a meridian cross-section a first line is parallel with an innermost bottom side of a bead core in a radial direction and passes through an outermost projection of the bead core in a lateral direction, a second line is orthogonal with the first line at the outermost projection, a third line is orthogonal with the first line and passes through an intersection of a rim cushion rubber, a distance between the second and third lines is 2.0 to 4.0 mm, a shortest distance between an innermost projection of the bead core in the lateral direction and a cord of a carcass layer is 0.6 to 1.4 mm, and a shortest distance between an innermost end of the bottom side of the bead core in the lateral direction and the cord of the carcass layer is 1.2 to 2.2 mm.

公开(公告)号：US20230226858A1

公开(公告)日：2023-07-20

申请号：US17998440

申请日：2021-04-12

申请人： The Yokohama Rubber Co., LTD.

发明人： Yuki NAGAHASHI ,  Noriyoshi KOYAMA

IPC分类号： B60C17/00 ,  B60C19/00 ,  B60C15/06

CPC分类号： B60C17/0009 ,  B60C19/002 ,  B60C15/0603 ,  B60C2015/061

摘要： Provided is a pneumatic tire. A band-like sound absorptive member is fixed to the inner surface of a tread portion along the tire circumferential direction. An end portion in the tire width direction of the sound absorptive member is located on the outer side in the tire width direction with respect to a shoulder main groove located on the outermost side in the tire width direction. A width W1 of the sound absorptive member in the tire width direction and a tread development width TDW of the tread portion satisfy a relationship of 0.65≤(W1/TDW)≤0.90. The width W1 of the sound absorptive member and a belt width W2 of a first belt ply having the maximum width of a belt layer satisfy a relationship of 0.70≤(W1/W2)≤0.95.

公开(公告)号：US20230142188A1

公开(公告)日：2023-05-11

申请号：US17965187

申请日：2022-10-13

申请人： Toyo Tire Corporation

发明人： Yuki MITSUNOBU

IPC分类号： B60C15/06 ,  B60C15/00

CPC分类号： B60C15/0628 ,  B60C15/0009 ,  B60C15/0603

摘要： A pneumatic tire a includes: a pair of beads having a bead core and a bead filler extending from the bead core to an outer side in a tire-radial direction; a pair of sidewalls extending from each of the pair of beads to an outer side in the tire-radial direction; a tread disposed between the pair of sidewalls; a carcass ply bridged between the pair of beads; an internal side reinforcement layer disposed at an inner side in a tire-width direction of the bead filler; and an external side reinforcement layer disposed at an outer side in the tire-width direction of the bead filler, in which the internal side reinforcement layer is disposed more to an inner side in the tire-radial direction than a tire-radial direction outer end of the bead filler, and the external side reinforcement layer has an outside extending part which extends from the bead filler.

公开(公告)号：US20180354306A1

公开(公告)日：2018-12-13

申请号：US15535908

申请日：2015-12-04

申请人： COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN ,  MICHELIN RECHERCHE ET TECHNIQUE, S.A.

发明人： Marc FRANCIA ,  Yves POTIN ,  Florian VILCOT

IPC分类号： B60C9/02 ,  B60C15/00 ,  B60C15/06

CPC分类号： B60C9/0238 ,  B60C15/0018 ,  B60C15/0054 ,  B60C15/0603 ,  B60C15/0635 ,  B60C2009/0246 ,  B60C2009/0253 ,  B60C2009/0276 ,  B60C2015/044 ,  B60C2015/0621

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.