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公开(公告)号：US20240343070A1
公开(公告)日：2024-10-17
申请号：US18529569
申请日：2023-12-05
发明人： Tsuyoshi Fujioka
CPC分类号： B60C11/0306 , B60C11/1236 , B60C2011/0353
摘要： A first block including a pair of block circumferential groove surfaces including a first notch, and a pair of block axial groove surfaces. Each of the pair of block axial groove surfaces includes a first straight block end, a second straight block end, and a third straight block end. The first block includes a first thin groove connecting the first notches of the pair of block circumferential groove surfaces. The first thin groove including a first straight portion, a second straight portion, and a third straight portion. The first straight portion is disposed on a first bisector that bisects an area between the first straight block ends. The second straight portion is disposed on a second bisector that bisects an area between the second straight block ends. The third straight portion is disposed on a third bisector that bisects an area between the third straight block ends.
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公开(公告)号：US12083831B2
公开(公告)日：2024-09-10
申请号：US17668022
申请日：2022-02-09
发明人： Tsuyoshi Fujioka
CPC分类号： B60C11/1236 , B60C11/0306 , B60C11/1204 , B60C11/1259 , B60C2011/0381 , B60C2011/0383 , B60C2011/1213
摘要： A center land has first center notches, second center notches, center slits, a first land end and a second land end. The first center notches and the center slits open onto the first land end in alternating fashion as one proceeds along a tire circumferential direction. The second center notches and the center slits open onto the second land end in alternating fashion as one proceeds along the tire circumferential direction. A quarter land has first quarter slits, first quarter notches, second quarter slits, second quarter notches, a third land end and a fourth land end. The first quarter slits and the first quarter notches open onto the third land end in alternating fashion as one proceeds along the tire circumferential direction. The second quarter slits and the second quarter notches open onto the fourth land end in alternating fashion as one proceeds along the tire circumferential direction.
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公开(公告)号：US20240262133A1
公开(公告)日：2024-08-08
申请号：US18421201
申请日：2024-01-24
发明人： Haruka KUBO , Hirokazu SAKATA , Kensuke SHIBAYAMA
CPC分类号： B60C11/0302 , B60C11/0306 , B60C11/1204 , B60C2011/0025
摘要： A pneumatic tire that is mounted on a vehicle in a specified direction and includes a tread rubber on a tread. The tread rubber has a plurality of main grooves extending along a tire circumferential direction, a pair of shoulder blocks that are defined by the main grooves and arranged on outer sides in a tire axial direction, and center blocks located between the pair of shoulder blocks. The center blocks are ribbed blocks that are continuous in the tire circumferential direction, and the tread rubber has a storage modulus at −25° C. (−25° C. E′) of 60 MPa or more and 150 MPa or less.
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公开(公告)号：US12049054B2
公开(公告)日：2024-07-30
申请号：US17544281
申请日：2021-12-07
发明人： Taizo Yamamoto
CPC分类号： B29D30/246 , B29D2030/202
摘要： A tire manufacturing device includes: a molding drum; a first moving portion in which the molding drum moves in order to mold an inner liner layer on the molding drum; a second moving portion in which the molding drum moves in order to mold a ply layer on the inner liner layer; a stitcher position where a carcass band is formed by performing pressing from above the ply layer laminated on the inner liner layer; and a transfer position where the carcass band is transferred from the molding drum to a transport device that transports the carcass band to a subsequent process, and the stitcher position and the transfer position are adjacent to each other.
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公开(公告)号：US20240218166A1
公开(公告)日：2024-07-04
申请号：US18529536
申请日：2023-12-05
发明人： Akari HASHIMOTO
IPC分类号： C08L9/00
CPC分类号： C08L9/00 , C08L2201/08 , C08L2205/03
摘要： A rubber composition containing, when a total amount of a rubber component is taken as 100 parts by mass, 0.5 to 6 parts by mass of a compound represented by the following general formula (1):
wherein at least one of R1 to R5 is an —OH group or an —OCH3 group and others are each an —H group or a hydrocarbon group having 1 to 20 carbon atoms) and 0.5 to 6 parts by mass of a lignin-based antiaging agent.-
公开(公告)号：US20240209186A1
公开(公告)日：2024-06-27
申请号：US18529250
申请日：2023-12-05
发明人： Gouya Ichinose , Norio Minouchi
CPC分类号： C08L7/00 , C08K3/04 , C08K3/36 , C08K2201/006 , C08L2205/03
摘要： A rubber composition for a tire tread, containing: 100 parts by mass of diene rubber containing 50% by mass or more of natural rubber and/or isoprene rubber; 14 to 30 parts by mass of carbon black having a nitrogen adsorption specific surface area of 80 to 150 m2/g; and 30 to 80 parts by mass of silica having a nitrogen adsorption specific surface area of 120 to 250 m2/g, in which a content rate between the silica and the carbon black (silica/carbon black) by mass rate is more than 1.
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公开(公告)号：US20240190181A1
公开(公告)日：2024-06-13
申请号：US18527661
申请日：2023-12-04
发明人： Yoshiki Sato
IPC分类号： B60C13/00
CPC分类号： B60C13/001
摘要： A tire includes at least one mark on a sidewall. The mark includes an outer surface including a wavy curved face having two or more and four or fewer peaks. More specifically, the mark includes an outer surface having two or more and four or fewer ridge-like curved faces extending in parallel to each other. The mark may include a circular protrusion protruding axially outward around an entire edge of the mark, and may thus be fringed with the circular protrusion.
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公开(公告)号：US11999194B2
公开(公告)日：2024-06-04
申请号：US17940043
申请日：2022-09-08
发明人： Yoshiki Sato
CPC分类号： B60C11/01 , B60C2011/013 , B60C2200/14
摘要： In a tire, a first side block comprises a first recess which opens so as to be directed toward a first circumferential direction, and a second recess which opens so as to be directed toward a second circumferential direction which is opposite the first circumferential direction in a tire circumferential direction. The first side block comprises a first region, a second region, and a first step which is between the first region and the second region and which is formed by a difference in heights by which the first region and the second region protrude.
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公开(公告)号：US20240174844A1
公开(公告)日：2024-05-30
申请号：US18374183
申请日：2023-09-28
发明人： Yuma Nishikawa
CPC分类号： C08L9/06 , B60C1/0016 , C08L9/00 , C08L2205/025
摘要： A rubber composition for a tire tread according to an embodiment includes 100 parts by mass of a diene rubber, 60 to 200 parts by mass of silica, and 20 to 60 parts by mass of a terpene-based resin having a β-pinene unit content of 40 mass % or more, and further includes 5 to 20 parts by mass of a thioester group-containing silane coupling agent per 100 parts by mass of silica. The diene rubber component contains a butadiene rubber and a styrene butadiene rubber having a glass transition temperature of −50° C. or less, in which the content of the butadiene rubber is 20 parts by mass or more, and the average glass transition temperature of the diene rubber component is −60° C. or less.
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公开(公告)号：US11993104B2
公开(公告)日：2024-05-28
申请号：US17114749
申请日：2020-12-08
发明人： Masaya Miyake
CPC分类号： B60C19/00 , B60C9/02 , B60C9/0207 , B60C2019/008
摘要： A pneumatic tire includes a tread portion, a pair of sidewall portions, a first ply, and a discontinuous second ply composed of a pair of ply pieces. The first ply has a central portion and a pair of first side portions extending from both ends of the central portion to the inner side in the tire radial direction. Each of the ply pieces has an inner end portion disposed on the outer side in the tire radial direction of the central portion and a second side portion extending from the inner end portion to the inner side in the tire radial direction. The first ply is provided with a plurality of ventilation holes, and the density of the ventilation holes in the central portion is higher than the density of the ventilation holes in the pair of first side portions.
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