专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP4360904A1 TIRE 审中-公开
公开(公告)号：EP4360904A1
公开(公告)日：2024-05-01
申请号：EP22827986.5
申请日：2022-03-22
申请人： BRIDGESTONE CORPORATION
发明人： DOHATA, Yuki , ONOUE, Shingo , SAITO, Kosuke
IPC分类号： B60C1/00 , C08K5/47 , C08L7/00 , C08L9/00 , C08L21/00 , C08L61/10 , C08K3/08 , B60C9/00 , B60C9/20
CPC分类号： B60C1/00 , B60C9/00 , B60C9/20 , C08K3/08 , C08K5/47 , C08L7/00 , C08L9/00 , C08L21/00 , C08L61/06
摘要： A tire including reinforcement layers 6a and 6b including a reinforcing material and a vulcanized rubber covering the reinforcing material, where the vulcanized rubber is a vulcanized rubber of a rubber composition containing N-cyclohexyl-2-benzothiazolylsulfenamide, the reinforcing material contains a metal where a steel cord surface is covered with a ternary plating of copper, zinc and iron, the reinforcement layers 6a and 6b are arranged on the inside of a tread surface in the tire radial direction, and a ratio (a/b) of a modulus (a) at 50 % elongation of the vulcanized rubber covering the reinforcing material in the central portion 6C and a modulus (b) at 50 % elongation of the vulcanized rubber covering the reinforcing material in the end portion 6E of the reinforcement layers 6a and 6b in the tire width direction is 0.94 to 1.06. The tire has a high modulus and excellent productivity.

2. 发明公开

EP3441238A1 TIRE 有权转让
公开(公告)号：EP3441238A1
公开(公告)日：2019-02-13
申请号：EP17778854.4
申请日：2017-02-09
申请人： Sumitomo Electric Tochigi Co., Ltd. , Sumitomo (SEI) Steel Wire Corp. , Sumitomo Rubber Industries, Ltd.
发明人： MATSUOKA, Akifumi , SAITO, Kazuhiko , TAKAMURA, Shinei , SUZUKI, Masumi , FUJISAWA, Koji
IPC分类号： B60C9/20 , B60C9/00 , D07B1/06
CPC分类号： B60C9/0057 , B60C9/00 , B60C9/0007 , B60C9/20 , B60C9/2006 , B60C2009/0021 , B60C2009/0085 , B60C2009/0092 , B60C2009/2064 , B60C2009/2067 , B60C2009/2077 , B60C2009/209 , B60C2009/2093 , B60C2009/2096 , D07B1/06
摘要： Provided is a tire that is lightweight and excellent in riding characteristics while suppressing an increase in cost.
A plurality of belt layers 7 are superimposed in a radial direction. The belt layers 7 include a plurality of steel cords 10 arranged in parallel in a row and rubber 11. The steel cords 10 have a 1 × 4 structure in which four filaments 20 are twisted, and when a center-to-center distance between the steel cords 10 in at least two of the belt layers 7 adjacent in the radial direction is T, and an average diameter of virtual circumscribed circles of the steel cords 10 having the 1 × 4 structure is D, 1.25 ≤ T/D ≤ 2.25.

3. 发明授权

EP1477333B1 PNEUMATIC RADIAL TIRE 有权
公开(公告)号：EP1477333B1
公开(公告)日：2018-06-20
申请号：EP03701867.8
申请日：2003-01-24
申请人： Bridgestone Corporation
发明人： YANO, Takeshi, c/o BRIDGESTONE CORPORATION , MORI, Hiroyuki, c/o BRIDGESTONE CORPORATION , NAKAMURA, Masaaki, c/o BRIDGESTONE CORPORATION , ITAI, Seiji, c/o BRIDGESTONE CORPORATION
IPC分类号： B60C9/22 , B60C9/26 , B60C3/00 , D02G3/48 , B60C9/20 , B60C11/04 , B60C9/08
CPC分类号： B29D30/0661 , B29D30/10 , B29D30/1628 , B29D30/70 , B60C3/00 , B60C9/20 , B60C9/22 , B60C9/263 , B60C9/28 , B60C2200/02 , D02G3/48 , D10B2331/02 , D10B2331/021 , Y10T152/10765 , Y10T152/10783 , Y10T152/10792 , Y10T152/10801 , Y10T152/10873
摘要： In the pneumatic radial tire of the present invention, a total strength K0 of a belt layer 20 in a circumferential direction of the tire per unit of width at a tire equator surface position P0 is set greater than a total strength of the belt layer 20 in the circumferential direction of the tire per unit of width at a width position P2 corresponding to 2/3 of a maximum width of the belt layer having the tire equator surface CL as a center. In this way, it is possible to suppress the quantity consume of material in the belt layer 20, and to suppress the amount of expansion of tread rubber in a tread central region in the circumferential direction thereof when a standard internal pressure is charged and when the tire is rotated at high speed, thereby suppressing the growth of tire diameter. Since the expansion amount of the tread rubber in the circumferential direction is suppressed, the tension of the rubber is reduced. Therefore, it is possible to increase the resistance of the tread against the sticking of foreign matter, and even when foreign matter sticks in the tread, it is possible to suppress the growth of the crack.

4. 发明公开

EP3305551A4 REINFORCEMENT MEMBER FOR TIRES, AND TIRE USING SAME 有权
公开(公告)号：EP3305551A4
公开(公告)日：2018-05-30
申请号：EP16799756
申请日：2016-04-27
申请人： BRIDGESTONE CORP
发明人： MIYAZONO TOSHIYA
IPC分类号： B60C9/20 , B60C9/18 , B60C9/26
CPC分类号： B60C9/18 , B60C9/20 , B60C9/263 , B60C2009/2045
摘要： Provided are: a tire reinforcement member having an improved durability; and a tire whose weight is reduced and durability is improved by using the tire reinforcement member. The tire reinforcement member is a tire reinforcement member 1 formed by winding a rubber strip 2 at an inclination with respect to the longitudinal direction of the member without any gaps while folding at width direction ends of the member, the rubber strip 2 being obtained by rubber-coating one reinforcing cord or a plurality of paralleled reinforcing cords. The rubber strip 2 substantially forms two reinforcing layers having different inclination directions. At a folding part T closest to a winding finish end 2e of the rubber strip 2, the rubber strip 2 is passed under an already wound rubber strip 2A and then folded, the already wound rubber strip 2A has been wound previous to the rubber strip 2 in an inclination direction different from that of the rubber strip 2, .

5. 发明授权

EP3064374B1 TIRE 有权
公开(公告)号：EP3064374B1
公开(公告)日：2018-05-30
申请号：EP14857781.0
申请日：2014-06-23
申请人： Bridgestone Corporation
发明人： KUWAYAMA, Isao , HATANAKA, Shintaro
IPC分类号： B60C9/20 , B60C11/04 , B60C11/03 , B60C9/22
CPC分类号： B60C9/22 , B60C3/04 , B60C9/02 , B60C9/20 , B60C9/2009 , B60C11/03 , B60C11/0306 , B60C11/04 , B60C2009/2019 , B60C2009/2048 , B60C2009/2223 , B60C2011/0341 , B60C2011/0386 , Y02T10/862
摘要： A pneumatic tire that makes steering stability, rolling resistance performance, and noise performance compatible includes a carcass toroidally extending between two bead portions; an inclined belt, with inclined belt layer(s) including cords that extend at an inclination relative to a tire circumferential direction, and a circumferential belt, with circumferential belt layer(s) including cords that extend along the tire circumferential direction, radially at an outer side of a crown portion of the carcass; and a tread at an outer side of the circumferential belt in the tire radial direction. An inclination angle of the cords in the inclined belt layers is 35° to 90°, the circumferential belt has a higher tire circumferential direction rigidity per unit width in a central region including a tire equator than in other regions, and in a surface region including the tire equator, the tread includes a land portion continuous in the tire circumferential direction.

6. 发明公开

EP3312023A1 MOTORCYCLE TIRE 有权
标题翻译：摩托车轮胎
公开(公告)号：EP3312023A1
公开(公告)日：2018-04-25
申请号：EP17186756.7
申请日：2017-08-18
申请人： Sumitomo Rubber Industries, Ltd.
发明人： TOCHIKI, Yuki
IPC分类号： B60C9/22
CPC分类号： B60C9/0042 , B29B15/08 , B29D30/38 , B29D2030/383 , B60C9/08 , B60C9/20 , B60C9/22 , B60C11/00 , B60C2009/2223 , B60C2009/2252 , B60C2009/2295 , B60C2200/10
摘要： A motorcycle tire (1) comprises a tread reinforcing layer (7) disposed radially outside the carcass in the tread portion. The tread reinforcing layer (7) is composed of a helically wound strip (10) of parallel reinforcing cords (11) coated with topping rubber (12). The winding pitch Pm of the strip (10) in middle parts Mi of the tread reinforcing layer is less than the winding pitch Pc of the strip (10) in a central part Cr, and less than the winding pitch Ps of the strip (10) in shoulder parts Sh.
摘要翻译：一种摩托车轮胎（1）包括胎面加强层（7），所述胎面加强层（7）设置在胎面部分中的胎体的径向外侧。胎面增强层（7）由涂有顶层橡胶（12）的平行增强帘线（11）的螺旋缠绕带（10）组成。在胎面加强层的中间部分Mi处的条带10的缠绕节距Pm小于中央部分Cr中的条带10的缠绕节距Pc并且小于条带10的缠绕节距Ps ）在肩部分Sh。

7. 发明公开

EP3296126A1 PNEUMATIC TIRE 有权
标题翻译：充气轮胎
公开(公告)号：EP3296126A1
公开(公告)日：2018-03-21
申请号：EP16792453.9
申请日：2016-04-06
申请人： Bridgestone Corporation
发明人： MIYAZONO Toshiya
IPC分类号： B60C9/18 , B60C9/20
CPC分类号： B60C9/26 , B60C9/0007 , B60C9/0042 , B60C9/18 , B60C9/1835 , B60C9/20 , B60C9/263 , B60C2009/1842 , B60C2009/2016 , B60C2009/2064 , B60C2009/2067 , B60C2009/266
摘要： Provided is a pneumatic tire for preventing the occurrence of premature wear at tire width direction edge portions due to the use of an endless inclined belt. The pneumatic tire includes two or more layers of inclined belts formed by winding rubber strips S each composed of a plurality of paralleled and rubber coated cords in a direction inclined with respect to the tire circumferential direction while folding back the rubber strips at both width direction ends. Rubber members G are arranged between the rubber strips S layered at the tire width direction edge portions of the inclined belts.
摘要翻译：本发明提供一种充气轮胎，其用于防止由于使用无端倾斜带而在轮胎宽度方向边缘部处发生过早磨损。充气轮胎包括两层或更多层倾斜带，所述两层或更多层倾斜带通过在相对于轮胎周向倾斜的方向上缠绕均由多根平行且橡胶涂覆的帘线构成的橡胶条S，同时在两个宽度方向端部处折回橡胶条。橡胶构件G布置在倾斜带的轮胎宽度方向边缘部处分层的橡胶条S之间。

8. 发明授权

EP2657046B1 PNEUMATIC RADIAL TIRE 有权
公开(公告)号：EP2657046B1
公开(公告)日：2018-02-21
申请号：EP11850194.9
申请日：2011-12-19
申请人： Bridgestone Corporation
发明人： NAKAMURA Keisuke
IPC分类号： B60C9/20 , B60C9/00 , D07B1/06
CPC分类号： B60C9/28 , B60C9/0007 , B60C9/0064 , B60C9/20 , B60C9/2006 , B60C2009/2067 , B60C2009/2077 , D07B1/0613
摘要： Provide is a pneumatic radial tire having excellent durability and lightweight properties without compromising rigidity. A pneumatic radial tire comprises: a carcass composed of at least one carcass layer extending toroidally between a left-and-right pair of bead cores; a tread portion which is arranged on the outside in the tire radial direction of a crown region of the carcass to form a ground contacting portion; and a belt composed of two belt layers which is arranged between the tread portion and the crown region of the carcass to form a reinforcing portion. A reinforcing material constituting the belt layer is a bundle 6 formed by arranging two cords in pairs; and, letting the diameter of a filament 7 constituting the cord a (mm), the interval between the adjacent bundles 6 as an expected value is increased by a/4 (mm) or larger compared to the interval represented by using the circumcircle of the cord.

9. 发明公开

EP3251875A1 PNEUMATIC TIRE FOR MOTORCYCLE 有权
标题翻译：摩托车的气动轮胎
公开(公告)号：EP3251875A1
公开(公告)日：2017-12-06
申请号：EP15879840.5
申请日：2015-12-21
申请人： Bridgestone Corporation
发明人： OSHIMA, Masatomo
IPC分类号： B60C9/18 , B60C9/20
CPC分类号： B60C9/28 , B60C3/04 , B60C9/20 , B60C9/2006 , B60C9/2204 , B60C2009/209 , B60C2009/2214 , B60C2009/2266 , B60C2009/2276 , B60C2009/228 , B60C2009/229 , B60C2200/10
摘要： The pneumatic motorcycle tire of this disclosure comprises a spiral belt formed by winding a strip member along a tire circumferential direction into a spiral shape, the strip member obtained by coating two reinforcing cords with a rubber, wherein: an aspect ratio of the tire is 60% or more; at a standard condition, each lap of the reinforcing cords is located at a constant spacing along a periphery of the spiral belt among the entire tire width direction; in the tire widthwise cross section, a spacing A along the periphery of the spiral belt between each lap of the reinforcing cords adjacent in the tire width direction is 3.5 mm or more and 6.0 mm or less; a spacing B along the periphery of the spiral belt between the two reinforcing cords for forming the strip member is 0.8 mm or more and 1.5 mm or less; and a rupture strength of one of the reinforcing cords is 200 N or more and 1000 N or less.
摘要翻译：本发明的充气式摩托车轮胎包括通过将带状部件沿着轮胎周向缠绕成螺旋形状而形成的螺旋带，所述带状部件通过用橡胶涂覆两根加强帘线而获得，其中：所述轮胎的纵横比为60 ％或者更多; 在标准条件下，增强帘线的每圈在整个轮胎宽度方向上沿螺旋带的周边以恒定间隔定位; 在轮胎宽度方向截面中，在轮胎宽度方向上相邻的增强帘线的每圈之间沿着螺旋带的周边的间隔A为3.5mm以上且6.0mm以下; 沿着用于形成带状部件的两条增强帘线之间的螺旋带的周边的间距B为0.8mm以上且1.5mm以下; 其中一根增强帘线的断裂强度为200N以上且1000N以下。

10. 发明公开

EP3246179A1 PNEUMATIC TIRE HAVING STRUCTURE OF DUAL REINFORCEMENT BELT LAYER 审中-公开
标题翻译：带有双层增强带结构的气动轮胎
公开(公告)号：EP3246179A1
公开(公告)日：2017-11-22
申请号：EP17163820.8
申请日：2017-03-30
申请人： Hankook Tire Co., Ltd.
发明人： Eom, Jae Ho
IPC分类号： B60C9/00 , B60C9/20 , B60C9/22
CPC分类号： B60C9/2009 , B60C9/20 , B60C2009/2029 , B60C2009/2038 , B60C2009/2041 , B60C2009/2074 , B60C2009/2077 , B60C2009/2083 , B60C2009/209
摘要： The present invention relates to a pneumatic tire (1) having a dual reinforcing belt structure, which minimizes deformation of the tire tread section (11) during high-speed driving, particularly deformation of the tire shoulder parts, suppresses a standing wave phenomenon, and enhances driving stability. The pneumatic tire having a dual reinforcing belt structure according to the invention includes a tread section (11), a sidewall section (12) and a bead section (14), in which the bead section is provided with a carcass (15) in a turned-up manner, a plurality of belt layers are provided by lamination between the carcass (15) and the tread section (11), and a reinforcing belt (100) is provided on top of the belt layer (16), while the reinforcing belt (100) is a dual reinforcing belt in which belts made of different materials are arranged. According to the configuration of the invention, there is obtained an effect that the growth of the tire tread shoulder parts and a standing wave are suppressed during high-speed driving, the tire cornering performance is enhanced to thereby enhance driving stability, repeated deformation and momentum in the belt section caused by dimensional growth of the tire are increased, and a potential problem that separation between the belt layers is accelerated is prevented.
摘要翻译：本发明涉及一种具有双重加强带结构的充气轮胎（1），其使高速行驶时轮胎胎面部（11）的变形最小化，特别是胎肩部的变形，抑制驻波现象，以及提高驾驶稳定性。根据本发明的具有双重加强带结构的充气轮胎包括胎面部分（11），侧壁部分（12）和胎圈部分（14），胎圈部分在其中设置有胎体（15）在胎体（15）与胎面部（11）之间层叠多层带束层，在带束层（16）的上部设置加强带（100），加强带皮带（100）是一种双重加强皮带，其中布置了由不同材料制成的皮带。根据本发明的构造，获得了这样的效果：在高速行驶期间抑制了轮胎胎面胎肩部的生长和驻波，提高了轮胎转弯性能，从而提高了驱动稳定性，反复变形和动量由轮胎的尺寸生长引起的带部分中的应力增加，并且防止了加速带层之间分离的潜在问题。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式