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公开(公告)号：EP4234277A1
公开(公告)日：2023-08-30
申请号：EP23154467.7
申请日：2023-02-01
IPC分类号： B60C11/12
摘要： A tread portion includes a crown land portion including first and second longitudinal edges extending in the tyre circumferential direction. The crown land portion is provided with first, second and third crown sipes. The first, second and third crown sipes open at the ground contact surface via respective chamfer portions. The first and third crown sipes extend from the first longitudinal edge and have closed ends in the ground contact surface. The second crown sipes extend from the second longitudinal edge and have closed ends in the ground contact surface. Each first crown sipe has a constant opening width in a longitudinal direction of the sipe. Each second crown sipe has a constant opening width in a longitudinal direction of the sipe. Each third crown sipe has an opening width which decreases continuously from the first longitudinal edge toward the closed end thereof.
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公开(公告)号：EP3744537A1
公开(公告)日：2020-12-02
申请号：EP20174130.3
申请日：2020-05-12
IPC分类号： B60C11/03
摘要： A tire comprises a tread portion having outboard and inboard tread edges and provided with three main grooves to axially divide the tread portion into four land regions including a widest outboard middle land region, wherein first inclined grooves (16) extend across the entire width of the outboard middle land region; second inclined grooves (17) extend from a crown main groove and are terminated within the outboard middle land region; fourth inclined grooves (19) are connected to the second inclined grooves (17) and to the first inclined grooves on an outboard shoulder main groove side; and an angle of the first inclined groove (16) and an angle of the second inclined groove (17) with respect to the tire circumferential direction are gradually increases from the crown main groove toward the outboard tread edge.
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公开(公告)号：EP4101658A1
公开(公告)日：2022-12-14
申请号：EP22187807.7
申请日：2020-10-08
摘要： A tire has a tread portion 2. The first middle land region 11 is provided with bend grooves 15 each having a first end 15a and a second end 15b. The first end 15a is connected to the first shoulder circumferential groove 5. The second end 15b is connected to one of the bend grooves 15 next in one of two opposite circumferential directions. Each bend groove 15 has two bent portions 16 and 17 at which the groove is bent. The bent angle θ1 at the first bent portion 16 is greater than the bent angle 02 at the second bent portion 17.
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公开(公告)号：EP3549788A1
公开(公告)日：2019-10-09
申请号：EP19165132.2
申请日：2019-03-26
发明人： FUJIMOTO, Yuki , TAHARA, Kotaro
IPC分类号： B60C11/01
摘要： A tire has an intended tire rotational direction and comprises a tread portion having a tread surface defined between tread edges and a pair of buttress surfaces defined as extending radially inwardly from the respective tread edges. One or each of the buttress surfaces is provided with a plurality of protrusions protruding axially outwardly and arranged in the tire circumferential direction. The protrusions include a curved protrusion which extends radially inwardly from the tread surface while curving toward the intended tire rotational direction.
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公开(公告)号：EP3401123A3
公开(公告)日：2019-01-16
申请号：EP18167608.1
申请日：2018-04-16
发明人： TAHARA, Kotaro , ISHINO, Hiroyuki , ARAKAWA, Saki , YAGI, Kenta
摘要： A tire comprises a tread portion2. The tread portion 2 comprises a plurality of oblique grooves 10 extending obliquely from a first tread edge Te1 positioned on one side in a tire axial direction toward a tire equator C, and a plurality of oblique land regions 13 each defined between a pair of the oblique grooves 10 adjacent to each other in a tire circumferential direction. Each of the oblique land regions 13 is provided with a plurality of joint grooves 15 each connecting between the pair of the oblique grooves 10.
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公开(公告)号：EP3401123A2
公开(公告)日：2018-11-14
申请号：EP18167608.1
申请日：2018-04-16
发明人： TAHARA, Kotaro , ISHINO, Hiroyuki , ARAKAWA, Saki , YAGI, Kenta
CPC分类号： B60C11/0302 , B60C11/1204 , B60C11/1236 , B60C2011/0372 , B60C2011/0374 , B60C2011/0379 , B60C2011/0381 , B60C2011/1213 , B60C2200/04
摘要： A tire comprises a tread portion2. The tread portion 2 comprises a plurality of oblique grooves 10 extending obliquely from a first tread edge Te1 positioned on one side in a tire axial direction toward a tire equator C, and a plurality of oblique land regions 13 each defined between a pair of the oblique grooves 10 adjacent to each other in a tire circumferential direction. Each of the oblique land regions 13 is provided with a plurality of joint grooves 15 each connecting between the pair of the oblique grooves 10.
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