公开(公告)号：US20220080782A1

公开(公告)日：2022-03-17

申请号：US17417973

申请日：2019-12-13

Applicant: BRIDGESTONE CORPORATION

Inventor： Masahiro KATAYAMA

IPC: B60C17/00 ,  B60C9/22 ,  B60C9/28

Abstract: A run-flat tire is provided with a belt layer having a circumferential cord extending along the tire circumferential direction covered with a resin material, a first resin reinforcing layer provided on the outside of the belt layer of the tire radial direction and formed of a resin material, and a second resin reinforcing layer provided on the inside of the belt layer of the tire radial direction and formed of a resin material, wherein the first resin reinforcing layer and the second resin reinforcing layer have a predetermined width along the tire width direction and are provided so as to sandwich the tire radial direction outside end of a side reinforcing rubber from the outside of the tire radial direction and the inside of the tire radial direction.

公开(公告)号：US11207919B2

公开(公告)日：2021-12-28

申请号：US15629096

申请日：2017-06-21

Applicant: Bridgestone Americas Tire Operations, LLC

Inventor： Kung-Ching Liao ,  Joshua P. Abell ,  Jenny L. Sheaffer

IPC: B60C1/00 ,  B60C5/04 ,  B29D30/06 ,  B29D30/00 ,  B60C19/12 ,  B60C17/00 ,  B60C19/00 ,  B29D30/48 ,  B60C5/14

Abstract: Methods for treating the surface of a cured inner liner are disclosed. By use of these methods a treated, cured inner liner is produced which has a lower surface with increased adherability to other materials (e.g., adhesives). Treated, cured inner liners resulting from such methods as well as tires containing the treated inner liners.

公开(公告)号：US20210170807A1

公开(公告)日：2021-06-10

申请号：US16768629

申请日：2018-11-19

Applicant: The Yokohama Rubber Co., LTD.

Inventor： Ryohei Takemori ,  Masaaki Nagayasu ,  Yuki Sasaya ,  Atsushi Tanno ,  Hiraku Kouda ,  Jun Matsuda

IPC: B60C15/04 ,  B60C17/00

Abstract: A pneumatic tire is provided. In a meridian cross-section, an external contour shape of the bead core is a polygon formed by common tangent lines of a plurality of circumferential portions of a bead wire, the external contour shape includes a single vertex located toward the outside in a tire radial direction, an internal angle formed by two sides sandwiching the vertex is an acute angle, a bottom side of the external contour shape is inclined with respect to the tire lateral direction by from 2° to 9°, and the carcass layer is bent and folded back along a circumference of the bead core in a bead portion, a folded back portion of the carcass layer from a position of an outer end of the bead core in the tire radial direction extends toward a sidewall portion in contact with a body portion.

公开(公告)号：US20210146734A1

公开(公告)日：2021-05-20

申请号：US16771218

申请日：2018-12-13

Applicant: BRIDGESTONE CORPORATION

Inventor： Keita YUMII

IPC: B60C17/00

Abstract: The pneumatic tire includes: a pair of bead portions; a pair of sidewall portions; a tread portion; a carcass; a reinforcing rubber layer, a tire widthwise cross-section of the reinforcing rubber layer having a substantially crescent shape; an inclined belt including at least one inclined belt layer formed by a plurality of cords extending at an inclination to a tire circumferential direction and covered with rubber; and an inner liner provided on an inner peripheral surface of a tire body in at least the tread portion. In a tire widthwise cross-sectional view, an edge of the inner liner is positioned farther outward in the tire radial direction than a tire maximum width position of the pneumatic tire and farther inward in the tire radial direction than a perpendicular from a tire widthwise edge of the inclined belt to the inner peripheral surface of the tire body.

公开(公告)号：US11001104B2

公开(公告)日：2021-05-11

申请号：US16096850

申请日：2017-04-27

Applicant: BRIDGESTONE CORPORATION

Inventor： Gaku Ogawa ,  Souto Nakayama

IPC: B60C17/06 ,  B60C11/12 ,  B60C17/00 ,  B60C11/01 ,  B60C9/18 ,  B60C9/28 ,  B60C11/03 ,  B60C15/06

Abstract: A tire includes a carcass, side-reinforcing rubber, a belt layer, and a tread. The belt layer includes at least two layers and is provided at a tire radial direction outer side of the carcass, each layer including a cord inclined with respect to a tire circumferential direction such that the cords of the belt layers intersect each other. The tread is provided at the tire radial direction outer side of the belt layer. A tire cross-section height SH satisfies SH≥145 mm, and a ground contact width TW of the tread and a maximum tire width direction width of the belt layer satisfies TW

公开(公告)号：US20200254819A1

公开(公告)日：2020-08-13

申请号：US16757074

申请日：2018-10-18

Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN

Inventor： RICHARD CORNILLE ,  BASTIEN LIMOZIN ,  SEBASTIEN RIGO

IPC: B60C3/02 ,  B60C17/00 ,  B60C5/12 ,  B60C7/18 ,  B60C9/02

Abstract: An assembly (1) comprises: a first structure (10) formed by first filamentary elements (15), a second structure (12) formed by second filamentary elements (16), a supporting structure (14) comprising supporting filamentary elements linking the first filamentary elements (15) and the second filamentary elements (16), and at least one filamentary securing element (18) interlaced with the first filamentary elements (15) and the second filamentary elements (16), one of the ends (18a, 18b) of the securing element (18) being free to slip relative to the first and second filamentary elements (15, 16).

公开(公告)号：US20200224011A1

公开(公告)日：2020-07-16

申请号：US16651071

申请日：2018-10-19

Applicant: Bridgestone Europe NV/SA

Inventor： Claudia Aurisicchio ,  Raffaele Di Ronza

IPC: C08L9/06 ,  B60C17/00 ,  B60C1/00

Abstract: A compound of a lateral insert of a run-flat pneumatic tyre comprising a cross-linkable unsaturated chain polymer base that is capable of assuming all of the chemical-physical and mechanical characteristics of an elastomer after cross-linking, a filler, a plasticizing agent and a curing system. The plasticizing agent consists of an aliphatic chain and has a melting temperature of between 50° C. and 100° C.

公开(公告)号：US10668769B2

公开(公告)日：2020-06-02

申请号：US16424710

申请日：2019-05-29

Applicant: Hutchinson Industries, Inc.

Inventor： Larry W. Stuck ,  Daniel Skoczylas ,  Colin G. Vogel

IPC: B60B21/12 ,  B60C17/00 ,  B60B3/00

Abstract: An anti-roll off assembly. The assembly comprises a band, a plurality of compression-resistant well filler assemblies and a coupler assembly. The band is configured to extend substantially around a circumference of a well portion of a wheel. The compression-resistant well filler assemblies are coupled to the band and are configured to be positioned against the well portion to block off respective volumes along circumferential portions of the well portion. The coupler assembly is configured to increase a tension force of the band and comprises a first trunnion, a second trunnion and a threaded member. The first trunnion is in contact with the band and has a first threaded opening. The second trunnion is in contact with the band and has a second threaded opening. The threaded member comprises a first end threadedly engaged with the first threaded opening and a second end threadedly engaged with the second threaded opening.

公开(公告)号：US10590268B2

公开(公告)日：2020-03-17

申请号：US15554828

申请日：2016-03-07

Applicant: BRIDGESTONE CORPORATION

Inventor： Takeshi Tsubota ,  Yuji Oyama

IPC: B60C17/00 ,  C08L15/00 ,  C08L61/06 ,  C08K5/40 ,  B60C1/00 ,  C08C19/22 ,  C08L7/00 ,  C08C19/44 ,  C08K5/44 ,  C08K5/16 ,  B60C9/00 ,  B60C15/06 ,  C08K3/04

Abstract: The present invention provides: a rubber composition prepared by mixing 60 to 100 parts by mass of a filler (B), 0.9 to 2.4 parts by mass of a phenol resin (C), 0.07 to 0.2 parts by mass of a methylene donor (D), 1.5 to 2.1 parts by mass of a thiuram based vulcanization accelerating agent (E), and 3.2 to 4.5 parts by mass of a sulfenamide based vulcanization accelerating agent (F), based on 100 parts by mass of the rubber component comprising 20 to 80% by mass of a modified conjugated diene based polymer (A), allowing the ride comfort in normal running to be satisfied in parallel with improvement in the run flat durability (durability in run flat running); and a tire comprising at least one member selected from the group consisting of a side reinforcing rubber layer and a bead filler using the rubber composition.

公开(公告)号：US20200056014A1

公开(公告)日：2020-02-20

申请号：US16661519

申请日：2019-10-23

Applicant: BRIDGESTONE CORPORATION

Inventor： Shigeki OISHI

IPC: C08L7/00 ,  B60C1/00 ,  B60C17/00

Abstract: The present invention relates to a rubber composition for run flat tires, containing a rubber component; a low-molecular weight conjugated diene-based polymer having a weight average molecular weight of 10,000 to 40,000 as expressed in terms of polystyrene in an amount of 1 to 10 parts by mass based on 100 parts by mass of the rubber component; and a vulcanization accelerator, with a ratio of the content of the vulcanization accelerator to the content of the low-molecular weight conjugated diene-based polymer (vulcanization accelerator/low-molecular weight conjugated diene-based polymer) being 1 to 3.5, from which a run flat tire with improved run flat durability without impairing the ride comfort is obtained. The run flat tire includes a sidewall section having a side reinforcing rubber layer formed from the rubber composition for run flat tires, a tread, a carcass, a bead core, and a bead filler.