公开(公告)号：US12109856B2

公开(公告)日：2024-10-08

申请号：US17771084

申请日：2020-10-22

Applicant: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN

Inventor： Vincent Tourneux ,  Daniel Fabing ,  Patrice Fraysse

IPC: B60C9/18 ,  B60C9/20 ,  B60C9/28 ,  B60C11/04 ,  B60C11/24 ,  B60C11/03

CPC classification number: B60C9/28 ,  B60C9/20 ,  B60C11/04 ,  B60C11/24 ,  B60C2009/283 ,  B60C2011/0355 ,  B60C2200/06

Abstract: A tire (10) for a vehicle comprises a radially outermost working layer (41) which comprises at least one undulation (412) in line with a central rib (251) of the tread (2). The undulation (412) is radially on the outside of the points of the working layer (41) in line with the bottom face (243) of the circumferential groove (24) closest to the undulation (412) and has an amplitude of at least 1 mm. The undulation (412) is vertically in line above at least one local reinforcing layer (6) comprising reinforcing elements that are mutually parallel and make with the circumferential direction (XX′) of the tire an angle of which the absolute value is at most equal to 5°.

公开(公告)号：US12090792B2

公开(公告)日：2024-09-17

申请号：US17830141

申请日：2022-06-01

Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.

Inventor： Hiroki Koike

IPC: B60C11/01 ,  B60C11/03 ,  B60C11/12

CPC classification number: B60C11/0302 ,  B60C11/0304 ,  B60C11/0306 ,  B60C11/1204 ,  B60C2011/0355 ,  B60C2011/1213

Abstract: An outer surface TS of a tire 2 includes a tread surface T and a pair of side surfaces S. A plurality of arcs representing a contour of the tread surface T include a pair of crown arcs. A ratio of a radius CR1 of a first crown arc to a radius CR2 of a second crown arc is not less than 1.10 and not greater than 1.70. A total groove volume of a first circumferential groove 48 located in a zone from an equator to a first tread reference end TE1 is larger than a total groove volume of a second circumferential groove 50 located in a zone from the equator to a second tread reference end TE2.

公开(公告)号：US20240300266A1

公开(公告)日：2024-09-12

申请号：US18429612

申请日：2024-02-01

Applicant: Sumitomo Rubber Industries, Ltd.

Inventor： Akiko MIURA

IPC: B60C11/03

CPC classification number: B60C11/03 ,  B60C2011/0353 ,  B60C2011/0355 ,  B60C2011/039

Abstract: The tire includes a tread portion provided with a first tread edge, a shoulder circumferential groove, and a shoulder land region. The shoulder land region includes an inner area demarcated axially inside from a center position in the tire axial direction of the shoulder land region, an outer area demarcated axially outside from the center position, and a plurality of shoulder axial grooves extending in the tire axial direction at least in the outer area. In a standard tire load loaded state, an average ground contact pressure in the outer area is larger than an average ground contact pressure in the inner area.

公开(公告)号：US20240294038A1

公开(公告)日：2024-09-05

申请号：US18612341

申请日：2024-03-21

Applicant: Continental Reifen Deutschland GmbH

Inventor： Christian Weber ,  Norbert Müller ,  Pedro-Nuno Rodrigues

IPC: B60C11/03 ,  B29D30/52 ,  B60C1/00 ,  B60C11/00 ,  B60C11/12 ,  C08K3/06 ,  C08K3/36 ,  C08K5/548 ,  C08L9/06

CPC classification number: B60C11/0306 ,  B60C1/0016 ,  B60C11/0008 ,  C08K3/06 ,  C08K3/36 ,  C08K5/548 ,  C08L9/06 ,  B29D30/52 ,  B60C2011/0016 ,  B60C2011/0025 ,  B60C2011/0033 ,  B60C2011/0355 ,  B60C2011/129 ,  C08L2205/02

Abstract: A pneumatic vehicle tire in radial design that is a summer tire or all-season tire, with a profiled tread including rows of profile blocks and/or profile ribs running around the tire in circumferential direction, wherein the total number of sipes within each row of profile blocks and/or profile ribs is not more than 150, wherein the tread is in the form of a single layer or multiple layers with a radially outermost tread layer that extends at least over the width of the ground contact area, wherein the profile depth of the tread is up to 6.5 mm, and the tread or its radially outermost tread layer consists of a rubber material with a Shore A hardness at room temperature in accordance with DIN ISO 7619-1 of 40 ShA to 55 ShA.

公开(公告)号：US12030346B2

公开(公告)日：2024-07-09

申请号：US17270628

申请日：2019-08-16

Applicant: The Yokohama Rubber Co., LTD.

Inventor： Shun Sato

IPC: B60C11/13 ,  B60C11/03

CPC classification number: B60C11/0309 ,  B60C11/033 ,  B60C11/1353 ,  B60C2011/0344 ,  B60C2011/0346 ,  B60C2011/0351 ,  B60C2011/0355 ,  B60C2011/0362 ,  B60C2011/133 ,  B60C2200/14

Abstract: A pneumatic tire includes circumferential main grooves extending in the tire circumferential direction and arranged side by side in the tire width direction and a land portion defined by the circumferential main grooves. The land portion includes notch portions extending in the tire width direction and connected to the circumferential main grooves and shallow groove portions connected to the notch portions, respectively, and terminating in the land portion. The height of the notch portions decreases continuously toward the circumferential main grooves connected thereto.

公开(公告)号：US11993101B2

公开(公告)日：2024-05-28

申请号：US17262298

申请日：2019-07-08

Applicant: Continental Reifen Deutschland GmbH

Inventor： Christian Weber ,  Norbert Müller ,  Pedro-Nuno Rodrigues

IPC: B60C11/00 ,  B60C1/00 ,  B60C11/03 ,  B60C11/12 ,  C08K3/06 ,  C08K3/36 ,  C08K5/548 ,  C08L9/06 ,  B29D30/52

CPC classification number: B60C11/0306 ,  B60C1/0016 ,  B60C11/0008 ,  C08K3/06 ,  C08K3/36 ,  C08K5/548 ,  C08L9/06 ,  B29D30/52 ,  B60C2011/0016 ,  B60C2011/0025 ,  B60C2011/0033 ,  B60C2011/0355 ,  B60C2011/129 ,  C08L2205/02

Abstract: A pneumatic vehicle tire in radial design that is a summer tire or all-season tire, with a profiled tread comprising rows of profile blocks and/or profile ribs running around the tire in circumferential direction, wherein the total number of sipes within each row of profile blocks and/or profile ribs is not more than 150, wherein the tread is in the form of a single layer or multiple layers with a radially outermost tread layer that extends at least over the width of the ground contact area, and wherein the profile depth of the tread is up to 6.5 mm. The tread or its radially outermost tread layer consists of a rubber material with a Shore A hardness at room temperature in accordance with DIN ISO 7619-1 of 40 ShA to 55 ShA.

公开(公告)号：US11964512B2

公开(公告)日：2024-04-23

申请号：US16771496

申请日：2018-09-24

Applicant: Continental Reifen Deutschland GmbH

Inventor： Florian Kristen ,  Alexander Wuest

IPC: B60C11/13 ,  B60C11/01 ,  B60C11/04 ,  B60C11/03

CPC classification number: B60C11/01 ,  B60C11/042 ,  B60C11/1323 ,  B60C2011/0355 ,  B60C2011/0388 ,  B60C2011/039 ,  B60C2011/133 ,  B60C2200/06

Abstract: A utility vehicle tire having a tread with at least two circumferential channels (3), which are formed to a profile depth (T) and which separate central profile positives (1) and shoulder-side profile positives (2) from one another, the circumferential channels (3) having channel flanks (5a, 5b) toward the central profile positives (1) and the shoulder-side profile positives (2) having shoulder flanks (6) running toward the side wall. The channels have depressions delimited by a curved surface.

公开(公告)号：US20230373252A1

公开(公告)日：2023-11-23

申请号：US18247922

申请日：2021-10-04

Applicant: Continental Reifen Deutschland GmbH

Inventor： Wilke Eikermann

IPC: B60C11/03 ,  B60C11/13 ,  B60C11/04

CPC classification number: B60C11/0323 ,  B60C11/1323 ,  B60C11/04 ,  B60C2011/0355 ,  B60C2011/0353 ,  B60C2200/06

Abstract: A pneumatic vehicle tire, in particular utility vehicle tire, having a tread (2) which has a profiling and which has at least one circumferential groove (1) which runs in encircling fashion in the circumferential direction of the pneumatic vehicle tire and is formed to a profile depth PT.
At least over part of the circumference of the pneumatic vehicle tire, at least one circumferential groove (1) has a cross section perpendicularly to the circumferential direction that is made up of at least two groove portions adjoining one another in a radial direction R of the pneumatic vehicle tire. A first groove portion (4) is symmetrical with respect to the radial direction R of the pneumatic vehicle tire. The width of said groove portion in the axial direction A of the pneumatic vehicle tire is less than 3 mm and does not vary by more than 10%. A second radially inner groove portion (5) is made wider in the axial direction A in comparison with the first groove portion (4). It has the largest cross-sectional area of all the groove portions. Its cross-sectional area is asymmetrical to the radial direction R, extends on both sides of the radial direction R and has an edge without corners in the bottom region of the circumferential groove (1).

公开(公告)号：US11820172B2

公开(公告)日：2023-11-21

申请号：US16614318

申请日：2018-04-11

Applicant: The Yokohama Rubber Co., LTD.

Inventor： Hiroki Sugiura

IPC: B60C1/00 ,  C08K3/011 ,  B60C11/03 ,  C08K3/04 ,  C08K3/06 ,  C08L7/00 ,  C08L9/00 ,  C08L25/10

CPC classification number: B60C1/0016 ,  B60C11/03 ,  C08K3/011 ,  C08K3/04 ,  C08K3/06 ,  C08L7/00 ,  C08L9/00 ,  C08L25/10 ,  B60C2011/0355 ,  C08K2201/006 ,  C08L2205/03

Abstract: A pneumatic tire comprises a tread rubber with a groove depth at a shoulder portion that comes into contact with a road surface of 10 mm or greater. A rubber composition of the tread rubber contains: 60 to 70 parts by mass of carbon black having a nitrogen adsorption specific surface area of 70 to 130 m2/g, 0.5 parts or greater by mass of sulfur, and a vulcanization accelerator per 100 parts by mass of diene rubber including 50 to 70 mass % of styrene-butadiene rubber, 20 to 30 mass % of butadiene rubber, and 10 to 30 mass % of natural rubber. The diene rubber has an average glass transition temperature of −65° C. or lower. A ratio of a compounded amount of the vulcanization accelerator to a compounded amount of the sulfur is 1.0 to 1.3. The tread rubber has a rubber hardness of 65 to 70 at 20° C.

公开(公告)号：US20230202235A1

公开(公告)日：2023-06-29

申请号：US17434316

申请日：2020-02-26

Applicant: Sumitomo Rubber Industries, Ltd.

Inventor： Shuichiro ONO ,  Fumiya KATO

IPC: B60C1/00 ,  C08F136/08 ,  C08L9/06 ,  C08L45/02 ,  C08L47/00 ,  B60C11/00 ,  B60C11/03

CPC classification number: B60C1/0016 ,  B60C11/03 ,  B60C11/0008 ,  C08F136/08 ,  C08L9/06 ,  C08L45/02 ,  C08L47/00 ,  B60C2011/0025 ,  B60C2011/0033 ,  B60C2011/0353 ,  B60C2011/0355 ,  C08L2205/03

Abstract: The present invention aims to provide tire rubber composition with significantly improved overall performance in terms of wet grip performance and fuel economy, and pneumatic tires including the rubber compositions. The tire rubber compositions of the present invention have a tan δ versus temperature curve whose peak tan δ and half width satisfy the following relationship (1): Peak tan δ/Half width ≥ 0.025 (1).