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    • 7. 发明授权
    • Pneumatic radial tire for passenger cars
    • 乘用车气动子午线轮胎
    • US5385188A
    • 1995-01-31
    • US875783
    • 1992-04-29
    • Tomohiko KogureYusaku Miyazaki
    • Tomohiko KogureYusaku Miyazaki
    • B60C9/20B60C9/22B60C11/00B60C11/04B60C9/18
    • B60C11/00B60C11/0306B60C9/2009B60C9/22
    • A pneumatic radial tire for passenger cars having a plurality of grooves formed in the tread and extending at least circumferentially of the tire, the tread being provided with two belt plies therein in such a manner that their belt cords extend in a crisscross pattern. The grooves have a depth in the range of 6.0 to 8.5 mm, with the thickness of the under-groove rubber layer from the bottom of the grooves to the outer belt ply being fixed within the range of 0.5 to 2.0 mm. The belt plies are placed one over another with the both edge portions left unfolded. At least one of the plies is made from aramid fiber cords and at least the both edge portions of the belt plies are covered with at least one belt cover ply which has a cord angle of no greater than 30 deg with respect to the circumference of the tire. The belt cover ply is made of organic fiber cords no larger than 0.7 mm in diameter at a picking density of 35 to 90 percent.
    • 一种用于乘用车的充气子午线轮胎,其具有形成在胎面中并且至少沿轮胎周向延伸的多个槽,胎面在其中设置有两个带束层,使得它们的带帘线以十字形图案延伸。 凹槽的深度在6.0至8.5mm的范围内,底槽橡胶层从凹槽底部至外侧带束层的厚度固定在0.5至2.0mm的范围内。 皮带层被放置在另一个上,两个边缘部分展开。 帘布层中的至少一个由芳族聚酰胺纤维帘线制成,并且至少带束层的两个边缘部分被至少一个带盖层覆盖,该帘布层帘布层相对于 胎。 皮带盖层由直径不大于0.7mm的有机纤维帘线制成,采摘密度为35%至90%。
    • 9. 发明授权
    • Tire vulcanization mold
    • 轮胎硫化模具
    • US08740596B2
    • 2014-06-03
    • US13307283
    • 2011-11-30
    • Yusaku MiyazakiNoboru Takada
    • Yusaku MiyazakiNoboru Takada
    • B29C33/10
    • B29C33/10B29C37/006B29D30/0629B29D2030/0617
    • A tire vulcanization mold includes an elongated exhaust groove open to a tire molding surface, a plate-like blade inserted in the exhaust groove leaving a small gap between the blade and groove defining surfaces, and an exhaust hole connecting the exhaust groove and mold exterior. The exhaust groove has a length reduced partway in a mold depth direction, and includes upper and shorter lower groove portions positioned on mold surface and back surface sides, respectively, of the mold. The upper groove portion thickness is greater than the blade thickness, and the lower groove portion thickness is less than or equal to the blade thickness. The blade includes a communicating portion connecting the upper and lower groove portions, and abuts against portions of the mold defining a bottom surface of the upper groove portion and edge surfaces of both sides in a thickness direction of the lower groove portion.
    • 轮胎硫化模具包括:向轮胎成型表面开口的细长的排气槽,插入排气槽中的板状刀片,在刀片和槽限定表面之间留有小间隙,以及连接排气槽和模具外部的排气孔。 排气槽在模具深度方向上的长度减小,并且包括分别位于模具的模具表面和后表面侧的上部和下部较短的下部凹槽部分。 上槽部厚度大于叶片厚度,下槽部厚度小于或等于叶片厚度。 叶片包括连接上下槽部分的连通部分,并且与下槽部分的厚度方向邻接限定上槽部分的底表面和两侧边缘表面的模具。