Tread having hidden cavities extended by offset openings

    公开(公告)号:US12122189B2

    公开(公告)日:2024-10-22

    申请号:US17414589

    申请日:2019-12-16

    IPC分类号: B60C11/03 B60C11/12 B60C11/13

    摘要: Tread for heavy-duty vehicle tire, having tread surface with at least one cavity forming a hidden channel which forms an additional groove after an amount of wear, each channel extended towards tread surface in the new state along its entire length by a sipe of small width, at least one channel having plurality of extensions from this channel towards tread surface to place the channel and the outside of the tread into communication from an amount of partial wear of the tread, each extension being a secondary channel having a first opening of elongate shape with a minimum dimension I0 and a maximum dimension Lo that opens onto tread surface and a second opening that opens into channel, wherein for at least one channel provided with extensions, each first opening of these extensions is formed by a side of the sipe that extends the channel.

    PNEUMATIC TIRE
    3.
    发明公开
    PNEUMATIC TIRE 审中-公开

    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

    IPC分类号: B60C11/03 B60C11/12

    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.

    Tire with bi-directional performance

    公开(公告)号:US12115818B2

    公开(公告)日:2024-10-15

    申请号:US16448134

    申请日:2019-06-21

    摘要: A method of mounting a tire on a vehicle includes providing a tire having a first side, a second side, and a circumferential tread disposed about the tire. The first side defines a first forward rotation direction that is a rotation of the tire in a counterclockwise direction when the tire is mounted on a vehicle in a first orientation and viewed from the first side. The second side defines a second forward rotation direction of the tire that is a rotation of the tire in the counterclockwise direction when the tire is mounted on the vehicle in a second orientation opposite the first orientation and viewed from the first side. The circumferential tread includes a plurality of tread elements. At least one of the tread elements includes a sipe arrangement that causes the tire to exhibit a first tire performance when the tire is mounted on the vehicle in the first orientation and rotated in the first forward rotation direction. The sipe arrangement causes the tire to exhibit a second tire performance that is different from the first tire performance when the tire is mounted on the vehicle in the second orientation and rotated in the second forward rotation direction. The method further includes mounting the tire on the vehicle in the first orientation for driving the vehicle in a first set of conditions, and mounting the tire on the vehicle in the second orientation for driving the vehicle in a second set of conditions.

    Tire
    5.
    发明授权
    Tire 有权

    公开(公告)号:US12097726B2

    公开(公告)日:2024-09-24

    申请号:US17988877

    申请日:2022-11-17

    IPC分类号: B60C11/03 B60C11/12

    摘要: A tire comprises a tread portion including a first land portion provided with axially extending first lateral sipes. The first lateral sipe has a first sipe wall and a second sipe wall, and opens at a ground contacting top surface via a chamfer portion. The chamfer portion comprises a first sloped surface and a second sloped surface respectively connected to the first sipe wall and the second sipe wall. In a top view of the first land portion, the width W1 of the first sloped surface is larger than the width W2 of the second sloped surface.

    Pneumatic tire
    6.
    发明授权

    公开(公告)号:US12090794B2

    公开(公告)日:2024-09-17

    申请号:US17756564

    申请日:2020-06-22

    发明人: Keita Yumii

    IPC分类号: B60C11/12 B60C11/03

    摘要: A pneumatic tire includes circumferential main grooves extending in the tire circumferential direction on the tread surface, and in widthwise outermost land portions, widthwise grooves extending from the tread edges inward in the tire width direction and widthwise sipes extending from the tire widthwise inner edge of the widthwise grooves inward in the tire width direction and connecting to the circumferential main groove. Each widthwise sipe includes a widened portion, by the sipe bottom, with a larger sipe width than at the tread surface. A rectangle ratio is 0.8 or more. Each widthwise sipe extends at a first angle relative to the tire width direction in plan view of the tread surface. In a tire radial region containing the widened portion, the widened portion extends at a second angle smaller than the first angle relative to the tire width direction, or partially extends along the tire width direction.

    Tire and tire-vehicle combination

    公开(公告)号:US12090792B2

    公开(公告)日:2024-09-17

    申请号:US17830141

    申请日:2022-06-01

    发明人: Hiroki Koike

    IPC分类号: B60C11/01 B60C11/03 B60C11/12

    摘要: 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.

    Pneumatic tire
    8.
    发明授权

    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

    IPC分类号: B60C11/12 B60C11/03

    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.

    COMMERCIAL VEHICLE TYRE
    10.
    发明公开

    公开(公告)号:US20240278602A1

    公开(公告)日:2024-08-22

    申请号:US18687071

    申请日:2021-08-27

    IPC分类号: B60C11/03 B60C11/12

    摘要: The invention relates to a commercial vehicle tire having a tread with at least one profile rib which runs in encircling fashion in a circumferential direction, is arranged laterally with respect to the tire equatorial plane and has sipes extending through it, which sipes each have sipe walls, a sipe midplane spaced apart equally from the sipe walls, a width of 0.4 mm to 2.0 mm and a maximum depth in a radial direction of at least 40% of the profile depth, wherein each sipe, at least in a portion which runs over the predominant part thereof as seen in plan view, has at least one sipe zone which is offset in relation to the radially outer sipe periphery and which runs in an extent direction of the sipe in an undulating form and in arcuate or singly serrated form in a radial direction, wherein a plane running through the point of the maximum excursion of the sipe zone has a line of intersection with the sipe midplane, which line of intersection follows the undulating form of the sipe zone.
    The sipe runs in the undulating form exclusively in the sipe zone, wherein the amplitude of the line of intersection that follows the undulating form of the sipe zone decreases, in each line-of-intersection portion running over one half of a wavelength, in the direction of the tread-outside sipe end.