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公开(公告)号：US20240165902A1
公开(公告)日：2024-05-23
申请号：US18424275
申请日：2024-01-26
CPC分类号： B29D30/52 , B29D30/56 , B60C11/0318
摘要： A mold for molding a tire tread comprises a plurality of mold segments. Each of the plurality of mold segments includes an integer number of tread pitch repetitions. The plurality of mold segments are structured to be coupled to each other end-to-end so as to form the mold such that the mold includes an integer number of tread pitches. The mold also includes at least one mold end segment positioned on at least one end of the mold and has a mold end segment length shorter than a length of each of the plurality of mold segments.
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公开(公告)号：US20240051346A1
公开(公告)日：2024-02-15
申请号：US18255787
申请日：2021-11-25
发明人： Stefan Rittweger , Juraj Jurco
CPC分类号： B60C11/0318 , B60C3/04 , B60C13/001
摘要： The invention relates to a pneumatic tire for a vehicle, having at least one surface element (2) that is formed on the outer surface of the tire and has a structure (6) which contrasts with a base level (NB) and gives the surface element (2) a roughness.
The contrast structure (6) is formed by a multiplicity of contrast structure cells (6a), which coincide in shape in plan view and are joined together in the form of a grid, wherein the contrast structure cells (6a) have irregular peak and trough structures (6b) of a surface-covering configuration,
wherein the arrangement of the contrast structure cells (6a) and the configuration of the irregular peak and trough structures (6b) are such that, when considered in plan view, the irregular peak and trough structures (6b) can be transferred one into the other by congruence mapping.-
公开(公告)号：US11827057B2
公开(公告)日：2023-11-28
申请号：US16990472
申请日：2020-08-11
CPC分类号： B60C11/0306 , B60C11/0318 , B60C11/11 , B60C2011/0348 , B60C2011/0355 , B60C2011/0383 , B60C2011/0388
摘要： The subject invention reveals a tire tread having a circumferential tread cap with circumferential grooves, wherein the tread cap rubber compound has a Shore A hardness from 45 to 75. Moreover, the tread comprises at least one circumferential groove reinforcement reinforcing at least a bottom portion of at least one of the grooves and comprising a groove reinforcement rubber compound, wherein the groove reinforcement rubber compound has a Shore A hardness from 70 to 100. The tread also comprises a circumferential tread base layer arranged radially inwards of the tread cap and comprising a tread base layer compound, wherein the tread base layer compound has a Shore A hardness from 15 to 60, and wherein the Shore A hardness of the tread cap compound is higher than the Shore A hardness of the tread base layer compound.
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公开(公告)号：US20180147891A1
公开(公告)日：2018-05-31
申请号：US15806885
申请日：2017-11-08
发明人： Hisashi Takahashi
IPC分类号： B60C11/03
CPC分类号： B60C11/0318 , B60C11/0306
摘要： Provided is a pneumatic tire including: a plurality of land portion rows formed by arranging a plurality of land portions formed by main grooves and transverse grooves in a tire circumferential direction on a tire tread portion, wherein assuming a tire circumferential length of an element formed of the land portion and the transverse groove disposed adjacently to the land portion on one side in the circumferential direction as a pitch length P and the number of pitches which is the number of the elements over the whole circumference of the tire as N, the number of kinds k of pitch lengths P in the circumferential direction is set to N/4 or more and N or less. Assuming the pitch lengths P in a descending order as P1, P2, . . . , Pk, a relationship of Pm-1/Pm
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公开(公告)号：US20180086152A1
公开(公告)日：2018-03-29
申请号：US15719044
申请日：2017-09-28
发明人： Atsushi HIBINO
CPC分类号： B60C11/1369 , B60C11/0302 , B60C11/0306 , B60C11/0318 , B60C11/11 , B60C2011/0344 , B60C2011/0348 , B60C2011/0353 , B60C2011/0355
摘要： A tire comprises a tread portion provided with a first middle main groove, a second middle main groove, a crown longitudinal groove disposed between the first middle main groove and the second middle main groove, first crown lateral grooves connecting between the crown longitudinal groove and second middle main groove, and second crown lateral grooves connecting between the crown longitudinal groove and the second middle main groove. The first crown lateral grooves and the second crown lateral grooves are arranged so as to be misaligned with each other in the tire circumferential direction. The crown longitudinal groove is provided with at least one crown tie bar formed by raising a groove bottom of the crown longitudinal groove.
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公开(公告)号：US09855801B2
公开(公告)日：2018-01-02
申请号：US13675565
申请日：2012-11-13
发明人： Norifumi Kameda
CPC分类号： B60C11/12 , B60C11/03 , B60C11/0302 , B60C11/0306 , B60C11/0318 , B60C11/1218 , B60C2011/0334 , B60C2011/1295
摘要： A pneumatic tire includes circumferential main grooves extending in a tire circumferential direction and land portions partitioned and formed by the circumferential main grooves. The land portion of a center region and the land portions of left and right shoulder regions each have a plurality of sipes. Not less than 90% of the sipes disposed in the center region are constituted by two-dimensional sipes and not less than 90% of the sipes disposed in the shoulder regions are constituted by three-dimensional sipes. The left and right shoulder land portions each have a plurality of lug grooves arranged in the tire circumferential direction. A pitch number N_ce of the lug grooves in the land portion of the center region and a pitch number N_sh of the lug grooves in the land portions and of the left and right shoulder regions have a relationship such that N_ce>N_sh.
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7.发明授权公开(公告)号：US09597928B2
公开(公告)日：2017-03-21
申请号：US14256144
申请日：2014-04-18
发明人： Jon Irvin Stuckey
IPC分类号： B60C11/03
CPC分类号： B60C11/0318 , B60C2011/0325
摘要： A tire is provided having a tire noise pitch sequence based on preferred characteristics of the tire noise generated by tire tread lug stiffness variations. The tire has preferred modulation characteristics and good level characteristics. Tire noise pitch sequences are provided for tires with different numbers of tread lugs. In one embodiment, the invention provides a tire having a body having a tread that has a pitch sequence; and the pitch sequence having five different size pitches with pitch ratios of 1.00, 1.10, 1.25, 1.4, and 1.50.
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公开(公告)号：US20160347122A1
公开(公告)日：2016-12-01
申请号：US14898777
申请日：2014-06-11
发明人： Akiko G. Neil , Jon I. Stuckey
IPC分类号： B60C11/03
CPC分类号： B60C11/0318 , B60C11/0311 , B60C2011/0313 , B60C2200/08
摘要： A tire includes a tire carcass and a tread extending circumferentially about the tire carcass. The tread includes a plurality of tread elements disposed in a tread pattern. The plurality of tread elements have one of two different pitch lengths and are disposed in a noise-reducing pitch sequence.
摘要翻译： 轮胎包括轮胎胎体和围绕轮胎胎体周向延伸的胎面。 胎面包括设置在胎面花纹中的多个胎面元件。 多个胎面元件具有两个不同间距长度中的一个，并且设置在降噪节距序列中。
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9.发明授权Method for determining pitches of cooling fins for a pneumatic tire and pneumatic tire including cooling fins arranged by the same 有权用于确定充气轮胎和包括由其布置的散热片的充气轮胎的散热片间距的方法公开(公告)号：US09488550B2
公开(公告)日：2016-11-08
申请号：US14483895
申请日：2014-09-11
申请人： KUMHO TIRE CO., INC.
发明人： Woo-Cheol Park
IPC分类号： G01M17/02 , B60C11/00 , B60C27/00 , B60C23/02 , B60C23/06 , B60C11/03 , B60C13/02 , B60C23/18
CPC分类号： G01M17/02 , B60C11/0318 , B60C13/02 , B60C23/18
摘要： Disclosed are a method for determining pitches of cooling fins for a pneumatic tire so that the heat dissipation performance of the sidewall may be improved and an airflow noise generated by a high speed air may be decreased, and a pneumatic tire including the cooling fins arranged by the same. The method for determining pitches of cooling fins for a pneumatic tire, including: selecting a total number of cooling fins, the number of pitch-types, and a size of each pitch; generating a random number and arranging each type of pitch sequentially by the generated random number to produce a random pitch arrangement; Fourier transforming the obtained pitch arrangement to calculate a result value (FT); and repeatedly performing the steps of producing a random pitch arrangement and calculating the FT to determine a pitch arrangement when a change in amplitude of the FT is smallest.
摘要翻译： 公开了一种用于确定充气轮胎的散热片的间距的方法，从而可以提高侧壁的散热性能，并且可以降低由高速空气产生的气流噪声，并且包括散热片的充气轮胎由 一样。 用于确定充气轮胎的散热片的间距的方法，包括：选择散热片的总数，节距类型的数量和每个节距的大小; 生成随机数，并通过所生成的随机数顺序排列每个类型的音调，以产生随机音调排列; 傅立叶变换所获得的音调布置以计算结果值（FT）; 并且当FT的幅度变化最小时，重复执行产生随机音调排列和计算FT以确定音调排列的步骤。
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公开(公告)号：US09421827B2
公开(公告)日：2016-08-23
申请号：US13861444
申请日：2013-04-12
发明人： Toshio Koyama , Keiji Higuchi , Hirokazu Takano
IPC分类号： B60C11/03
CPC分类号： B60C11/03 , B60C11/0306 , B60C11/0318 , B60C11/0332 , B60C2011/0346 , B60C2011/0358 , B60C2011/0365 , B60C2011/0372 , B60C2011/0374 , B60C2011/0388
摘要： A pneumatic tire comprises a tread portion provided with a circumferential shoulder main groove, shoulder lateral grooves extending from the shoulder main groove toward a tread edge, and middle lateral grooves extending from the shoulder main groove toward a tire equatorial plane, the shoulder main groove extending in a zigzag manner through an axially innermost and outermost points alternately, each middle lateral groove extending from each innermost point of the shoulder main groove with an angle of 50-75 degrees with respect to a tire axial direction, and each shoulder lateral groove extending from the shoulder main groove with the same inclination direction with the middle lateral groove at an angle of 10-25 degrees with respect to the tire axial direction, wherein the number of shoulder lateral grooves is larger than the number of middle lateral grooves.
摘要翻译： 一种充气轮胎，包括：胎面部，其具有周向胎肩主槽，从所述胎肩主槽朝向胎面边缘延伸的胎肩横向槽，以及从胎肩主槽朝向轮胎赤道面延伸的中间横向槽，所述肩部主槽延伸 以Z字形方式通过轴向最内侧和最外侧的交替位置，每个中间横向槽从肩部主槽的每个最内点以相对于轮胎轴向方向以50-75度的角度延伸，并且每个肩部侧向槽从 相对于轮胎轴向以10-25度的角度与中间横向槽相同倾斜方向的肩部主槽，其中肩部横向槽的数量大于中间横向槽的数量。
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