公开(公告)号：US20210370719A1

公开(公告)日：2021-12-02

申请号：US17280588

申请日：2019-09-19

Applicant: Sumitomo Rubber Industries, Ltd.

Inventor： Takuma YOSHIZUMI

IPC: B60C9/00 ,  D02G3/48

Abstract: A composite cord is composed of two first strands formed of aramid fibers and one second strand formed of nylon fibers. In a cross section perpendicular to a length direction, a ratio L2/L0 of a length L2 of an exposed surface of the second strand along the outer cord periphery to a length L0 of an exposed surface of the composite cord along the outer cord periphery is in a range of 0.30 or more and 0.40 or less.

公开(公告)号：US20240042813A1

公开(公告)日：2024-02-08

申请号：US18255986

申请日：2021-09-17

Applicant: Sumitomo Rubber Industries, Ltd.

Inventor： Naoya SOFUE ,  Takuma YOSHIZUMI

IPC: B60C23/04 ,  B60C19/00 ,  B60C1/00

CPC classification number: B60C23/0493 ,  B60C19/00 ,  B60C1/00 ,  B60C2200/04

Abstract: Provided is a tire having excellent peeling resistance such that it is unsusceptible to having an electronic component peel off from the surface of the tire, even when a large impact is exerted on the tire during high-speed travel. An electronic component attachment member for embedding an electronic component is attached to a surface of a tire inner member disposed in a tire inner cavity. The electronic component attachment member comprises an electronic component storage part for storing an electronic component, and a bonding part having a bonding surface for attaching the electronic component attachment member to the surface of the tire inner member. A line that passes through the center point of the bonding surface of the electronic component attachment member with the tire inner cavity surface and that is perpendicular to the surface profile of a tread part does not pass through a circumferential-direction groove formed in the surface of the tread part, and the complex elastic modulus E*t (MPa) of tread rubber constituting the tread part at 30° C. satisfy E*r/E*t.

公开(公告)号：US20200247193A1

公开(公告)日：2020-08-06

申请号：US16641732

申请日：2018-09-03

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Hiroki NAKAJIMA ,  Takuma YOSHIZUMI

IPC: B60C15/06 ,  B60C19/00

Abstract: Provided is a tire manufacturing feature in which even when an electronic component is embedded in a tire, damage due to impact load during traveling on the road surface is inhibited and the durability of the tire is prevented from deteriorating. A pneumatic tire provided with: a bead reinforcing layer provided in the tire-axial-direction outer side of the carcass of a bead part the bead reinforcing layer reinforcing the bead part from the outer side of the carcass; a clinch member provided on the tire-axial-direction outer side of the bead reinforcing layer; and an electronic device. The clinch member has a rigidity lower than that of the bead reinforcing layer, and the electronic component is embedded between the bead reinforcing layer and the clinch member.

公开(公告)号：US20240123765A1

公开(公告)日：2024-04-18

申请号：US18276821

申请日：2022-02-02

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Takuma YOSHIZUMI ,  Naoya SOFUE ,  Daichi AOKI

IPC: B60C5/14 ,  B60C1/00 ,  B60C19/00 ,  B60C23/04

CPC classification number: B60C5/14 ,  B60C1/0008 ,  B60C19/00 ,  B60C23/0493 ,  B60C2019/004

Abstract: Provided is a tire in which cracks do not occur in the tire inner member during high-speed running and the occurrence of tire air leakage and detachment of electronic component mounting members is suppressed. A tire in which an electronic component mounting member for a built-in electronic component is mounted on the surface of a tire inner member, wherein the electronic component mounting member has an electronic component storage portion for storing an electronic component and a joint portion equipped with a joint surface for mounting the electronic component mounting member on the surface of the tire inner member, and the acetone extraction weight AEr (mass %) of the electronic component mounting member and the acetone extraction weight AEi (mass %) of the tire inner member satisfy (formula 1).


AEr/AEi>1  (formula 1)

公开(公告)号：US20210070112A1

公开(公告)日：2021-03-11

申请号：US16642533

申请日：2018-08-31

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Takuma YOSHIZUMI ,  Hiroki NAKAJIMA

IPC: B60C19/00

Abstract: Provided is a tire structure technology with which sufficient reading performance can be maintained even when a tire having an electronic component provided therein is caused to drive under high speed and severe handling. A pneumatic tire in which an electronic component is provided farther outward in a tire axial direction than a carcass, and in which the tanδ(1)50° C. and tanδ(1)150° C. of a first rubber member, and the tanδ(2)50° C. and tanδ(2)150° C. of a second rubber member, satisfy the following formula, where the first rubber member is a tire rubber member that has the greatest E* at 50° C. among tire rubber members positioned outward from the electronic component in the tire axial direction, and the second rubber member is a tire rubber member that has the greatest E* at 50° C. among tire rubber members positioned inward from the electronic component in the tire axial direction. (tanδ(1)50° C.+tan δ(2)50° C. )−(tanδ(1)150° C.tanδ(2)150° C.)≤0.08

公开(公告)号：US20210070113A1

公开(公告)日：2021-03-11

申请号：US16642543

申请日：2018-08-31

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Takuma YOSHIZUMI ,  Hiroki NAKAJIMA

IPC: B60C19/00

Abstract: Provided is a tire structure technology with which, even in the case of a tire having an electronic component provided therein, damage and deformation of the electronic component caused by impact loads, etc., during road surface travel can be suppressed and sufficient reading performance can be maintained. A pneumatic tire in which an electronic component is provided at a position farther outward in a tire axial direction than a carcass, wherein, in a tire rubber member that has the greatest E*(50° C.) at 50° C. among tire rubber members positioned inward in the tire axial direction from the position where the electronic component is provided, E*(50° C.) at 50° and E*(150° C.) at 150° C. satisfy the following formula. E*(150° C.)/E*(50° C.)≥0.9

公开(公告)号：US20210070111A1

公开(公告)日：2021-03-11

申请号：US16642527

申请日：2018-09-10

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Takuma YOSHIZUMI ,  Hiroki NAKAJIMA

IPC: B60C19/00

Abstract: Provided is a technique for producing a tire which, even if an electronic component is included therein, can prevent damages or deformations of the electronic component caused by impact load during street-traveling, etc., and maintain sufficient reading performance. Provided is a pneumatic tire provided with an electronic component at a position located on the further outer side in the tire axis direction than a carcass, wherein, in a tire rubber member having a maximum value of E*(100° C.) at 100° C., among tire rubber members located toward the outer side in the tire axis direction from the position at which the electronic component is disposed, E*(1000° C.) at 100° C. and E*(150° C.) at 150° C. satisfy the following formula: E*(150° C.)/E*(100° C.)≥0.9.

公开(公告)号：US20200180366A1

公开(公告)日：2020-06-11

申请号：US16642540

申请日：2018-08-31

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Hiroki NAKAJIMA ,  Takuma YOSHIZUMI

IPC: B60C19/00

Abstract: Provided is a tire manufacturing feature in which, even when an electronic component is disposed on a side wall portion in order to secure sufficient communication performance, damage to the tire or to the electronic component is avoided. A pneumatic tire in which an electronic component is disposed in the interior thereof, wherein a protective layer for reinforcing a side wall is provided at a position on the inside of a carcass and on the outside of an inner liner with respect to the tire axial direction, the protective layer has higher rigidity and lower heat generating properties than the side wall, and the electronic component is disposed between the carcass and the protective layer.

公开(公告)号：US20240227447A9

公开(公告)日：2024-07-11

申请号：US18277720

申请日：2022-02-17

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Takuma YOSHIZUMI ,  Naoya SOFUE ,  Daichi AOKI

IPC: B60C5/14 ,  B60C1/00 ,  B60C19/00

CPC classification number: B60C5/14 ,  B60C1/0008 ,  B60C19/00 ,  B60C2200/04

Abstract: A pneumatic tire (1) includes: a tread portion (2) including a land portion (24) divided by a plurality of main grooves (22) formed on a tread surface (21); an inner liner (7) constituting a tire inner surface (7A) on an inner side of the tread portion (2); and a mount member (10) which is provided on the tire inner surface (7A), and to which electric equipment can be attached. In the pneumatic tire (1), acetone extraction amount (AE2) of a rubber composition constituting the inner liner (7) is larger than acetone extraction amount AE1 of a rubber composition constituting the mount member (10).

公开(公告)号：US20240131867A1

公开(公告)日：2024-04-25

申请号：US18277720

申请日：2022-02-17

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Takuma YOSHIZUMI ,  Naoya SOFUE ,  Daichi AOKI

IPC: B60C5/14 ,  B60C1/00 ,  B60C19/00

CPC classification number: B60C5/14 ,  B60C1/0008 ,  B60C19/00 ,  B60C2200/04

Abstract: A pneumatic tire (1) includes: a tread portion (2) including a land portion (24) divided by a plurality of main grooves (22) formed on a tread surface (21); an inner liner (7) constituting a tire inner surface (7A) on an inner side of the tread portion (2); and a mount member (10) which is provided on the tire inner surface (7A), and to which electric equipment can be attached. In the pneumatic tire (1), acetone extraction amount (AE2) of a rubber composition constituting the inner liner (7) is larger than acetone extraction amount AE1 of a rubber composition constituting the mount member (10).