公开(公告)号：USD247233S

公开(公告)日：1978-02-14

申请号：US765125

申请日：1977-02-03

申请人： Norio Iwata ,  Hiroshi Kojima

设计人： Norio Iwata ,  Hiroshi Kojima

公开(公告)号：USD250107S

公开(公告)日：1978-10-31

申请号：US829799

申请日：1977-09-01

申请人： Norio Iwata ,  Hiroshi Kojima

设计人： Norio Iwata ,  Hiroshi Kojima

公开(公告)号：US4223712A

公开(公告)日：1980-09-23

申请号：US937374

申请日：1978-08-28

申请人： Norio Iwata ,  Hiroshi Kojima

发明人： Norio Iwata ,  Hiroshi Kojima

IPC分类号： B60C9/20 ,  B60C11/00 ,  B60C11/04 ,  B60C11/11 ,  B60C11/08 ,  B60C11/06

CPC分类号： B60C11/1369 ,  B60C11/00 ,  B60C11/0309 ,  B60C11/11 ,  B60C9/20 ,  B60C2011/0388 ,  Y10T152/10027

摘要： A pneumatic tire for heavy duty vehicles comprises a tread divided by two circumferential zigzag grooves in a tread center zone including block patterns of elongated blocks circumferentially discontinuous with traverse grooves and side zones including circumferentially continuous ribs. The traverse grooves are provided in their mid portions 30-70% of their lengths with platforms making the grooves shallower 30-70% than their original depths. The pattern of the tread converts into a pattern of ribs formed by the circumferential zigzag grooves having branch grooves when the tread has worn more than 30-70%. The tire including the above tread pattern according to the invention is suitable for both use on paved hard roads and weak grounds.

摘要翻译： 一种用于重载车辆的充气轮胎包括在胎面中心区域中划分为两个周向锯齿形凹槽的胎面，其包括具有横向槽周向不连续的细长块的块图案和包括周向连续肋的侧部区域。 横向槽在它们的长度的30-70％的中间部分设置，使得凹槽比其原始深度浅30-70％。 当胎面磨损超过30-70％时，胎面的图案转变成由具有分支槽的周向锯齿形沟形成的肋状图案。 包括根据本发明的上述胎面花纹的轮胎适合于在铺设的硬道和弱地面上使用。

公开(公告)号：US4702293A

公开(公告)日：1987-10-27

申请号：US834123

申请日：1986-02-26

申请人： Norio Iwata ,  Masao Nakamura ,  Takashi Takusagawa

发明人： Norio Iwata ,  Masao Nakamura ,  Takashi Takusagawa

IPC分类号： B29D30/30 ,  B29C67/00 ,  B29D30/00 ,  B29D30/08 ,  B29D30/38 ,  B60C3/04 ,  B60C9/00 ,  B60C9/08 ,  B60C9/18 ,  B60C9/20 ,  B60C9/22 ,  B60C9/28

CPC分类号： B60C9/22 ,  B29D30/08 ,  B60C3/04 ,  B60C9/2006 ,  B60C9/2009 ,  B60C9/28 ,  Y10T152/10801

摘要： A heavy duty low-section pneumatic and a process for manufacturing the same are disclosed. This tire comprises a radial carcass toroidally extending between bead portions, a belt composed of a first and second belt layers successively superimposed around a crown portion of the carcass and a tread rubber having substantially the same width as the maximum width of the belt. In the belt, the first belt layer is composed of at least two cord plies each containing cords inclined at a small angle with respect to the equatorial plane of the tire, the cords of which being crossed with each other with respect to the equatorial plane, while the second belt layer is composed of at least one cord ply containing non-expansible or hardly expansible cords arranged in substantially parallel to the equatorial plane and extends over both sides of the first belt layer between the first belt layer and the carcass.

摘要翻译： 公开了一种重型低截面气动及其制造方法。 该轮胎包括在胎圈部分之间环形延伸的径向胎体，由沿着胎体的胎冠部分连续地叠加的第一和第二带束层构成的带和具有与带的最大宽度基本相同的宽度的胎面橡胶。 在该带中，第一带层由至少两根帘线层构成，帘线帘线包含相对于轮胎的赤道面以小角度倾斜的帘线，绳的帘线相对于赤道面相互交叉， 而第二带束层由至少一个包含基本上平行于赤道平面布置的不可膨胀或几乎不可膨胀的帘线的帘线层构成，并且在第一带束层和胎体之间的第一带束层的两侧延伸。

公开(公告)号：US4735247A

公开(公告)日：1988-04-05

申请号：US804960

申请日：1985-12-05

申请人： Shigeo Makino ,  Norio Iwata

发明人： Shigeo Makino ,  Norio Iwata

IPC分类号： B60C9/18 ,  B60C9/20 ,  B60C11/00 ,  B60C11/11 ,  B60C11/117 ,  B60C1/00

CPC分类号： B60C11/00 ,  B60C11/005 ,  B60C9/18

摘要： A pneumatic tire having a tread of a lug type pattern is disclosed. In this type of the tire, the tread rubber has a composite structure of a cap rubber and a base rubber having a heat build-up property lower than that of the cap rubber and arranged on at least a shoulder portion of the tread just beneath the cap rubber. The base rubber has a thickness that an average thickness just beneath the lug is larger than that just beneath the lug groove in a conical plane imaged by taking as a general line a normal line drawn from the tread end to the inner surface of the tire in the radial section inclusive of a rotational axis of the tire.

摘要翻译： 公开了一种具有凸耳型图案的胎面的充气轮胎。 在这种类型的轮胎中，胎面橡胶具有帽橡胶和基础橡胶的复合结构，其具有低于帽橡胶的积热性能，并且布置在胎面的至少一个肩部 帽橡胶。 底座橡胶具有厚度，即在凸缘正下方的平均厚度大于在圆锥形平面正下方的横向花纹槽正下方的厚度，该圆锥形平面通过将从胎面端拉至轮胎内表面的法线作为通用线， 径向部分包括轮胎的旋转轴线。

公开(公告)号：US4842682A

公开(公告)日：1989-06-27

申请号：US60794

申请日：1987-06-12

申请人： Norio Iwata ,  Masao Nakamura ,  Takashi Takusagawa

发明人： Norio Iwata ,  Masao Nakamura ,  Takashi Takusagawa

IPC分类号： B29D30/30 ,  B29C67/00 ,  B29D30/00 ,  B29D30/08 ,  B29D30/38 ,  B60C3/04 ,  B60C9/00 ,  B60C9/08 ,  B60C9/18 ,  B60C9/20 ,  B60C9/22 ,  B60C9/28

CPC分类号： B60C9/22 ,  B29D30/08 ,  B60C3/04 ,  B60C9/2006 ,  B60C9/2009 ,  B60C9/28 ,  Y10T152/10801

摘要： A heavy duty low-section pneumatic and a process for manufacturing the same are disclosed. This tire comprises a radial carcass toroidally extending between bead portions, a belt composed of a first and second belt layers successively superimposed around a crown portion of the carcass and a tread rubber having substantially the same width as the maximum width of the belt. In the belt, the first belt layer is composed of at least two cord plies each containing cords inclined at a small angle with respect to the equatorial plane of the tire, the cords of which being crossed with each other with respect to the equatorial plane, while the second belt layer is composed of at least one cord ply containing non-expansible or hardly expansible cords arranged in substantially parallel to the equatorial plane and extends over both sides of the first belt layer between the first belt layer and the carcass.

摘要翻译： 公开了一种重型低截面气动及其制造方法。 该轮胎包括在胎圈部分之间环形延伸的径向胎体，由沿着胎体的胎冠部分连续地叠加的第一和第二带束层构成的带和具有与带的最大宽度基本相同的宽度的胎面橡胶。 在该带中，第一带层由至少两根帘线层构成，帘线帘线包含相对于轮胎的赤道面以小角度倾斜的帘线，绳的帘线相对于赤道面相互交叉， 而第二带束层由至少一个包含基本上平行于赤道平面布置的不可膨胀或几乎不可膨胀的帘线的帘线层构成，并且在第一带束层和胎体之间的第一带束层的两侧延伸。