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13 条记录 (耗时 0.02 秒)

    Pitch arrangement evaluation system of tread pattern of pneumatic tire
    9.
    发明授权
    Pitch arrangement evaluation system of tread pattern of pneumatic tire 失效
    充气轮胎胎面花纹间距布置的评估方法

    公开(公告)号：US5974872A

    公开(公告)日：1999-11-02

    申请号：US849245

    申请日：1997-06-12

    申请人： Hisaya Morishita ,  Teruhiko Kikuchi ,  Toshihiko Suzuki

    发明人： Hisaya Morishita ,  Teruhiko Kikuchi ,  Toshihiko Suzuki

    IPC分类号： B60C11/00 ,  G01M17/02 ,  B60C11/03

    CPC分类号： B60C11/0318 ,  G01M17/025

    摘要： A pneumatic tire has a tread pattern shaped in such a fashion that pitches determined by groove portions disposed on a tread surface in a predetermined pitch in at least a tire circumferential direction have at least three different kinds of pitch lengths. An amplitude waveform corresponding to the frequency of noise resulting from the pitch arrangement per circumference of the tire is determined by a noise simulation method, and whether or not the pitch arrangement determined by the noise simulation is a pitch arrangement of a low pattern noise is evaluated from the value of a correlational coefficient R between the amplitude waveform and a quartic expression obtained by the regression of the amplitude waveform.

    摘要翻译： PCT No.PCT / JP96 / 02992 Sec。 371日期：1997年6月12日 102（e）1997年6月12日PCT PCT 1996年10月16日PCT公布。 第WO97 / 14946号公报 日期1997年4月24日充气轮胎具有胎面花纹，胎面花纹的形状使得至少在轮胎周向上以预定间距设置在胎面表面上的槽部确定的间距具有至少三种不同的节距长度。 通过噪声模拟方法确定由轮胎每圆周的俯仰配置产生的噪声频率对应的振幅波形，并且评估由噪声模拟确定的俯仰布置是否是低图案噪声的俯仰布置 从振幅波形和通过振幅波形的回归获得的四次表达式之间的相关系数R的值。

    Method of integrally attaching hollow member to cast product by casting and apparatus therefor
    10.
    发明授权
    Method of integrally attaching hollow member to cast product by casting and apparatus therefor 失效
    通过铸造将中空构件一体地安装到铸造产品上的方法及其装置

    公开(公告)号：US5957190A

    公开(公告)日：1999-09-28

    申请号：US922341

    申请日：1997-09-03

    申请人： Hisaya Morishita ,  Akira Seki ,  Shigeki Tamura ,  Mitsuru Inui

    发明人： Hisaya Morishita ,  Akira Seki ,  Shigeki Tamura ,  Mitsuru Inui

    IPC分类号： B22D17/22 ,  B22D19/00

    CPC分类号： B22D19/0072

    摘要： In a method of integrally attaching a hollow member to a cast product by casting so that the hollow member communicates with a hollow interior of the cast product, a closure member is fitted into an open end of the hollow member so that the open end of the hollow member is closed by the closure member. The closure member projects from a core for forming the hollow interior of the cast product in a direction different from a direction in which the core is drawn out of the cast product. A molten metal is poured into a casting mold after the casting mold has been clamped. The closure member is moved inside the core after solidification of the molten metal so that the closure member is released from the fitting in the hollow member. The core is drawn out of the solidified metal subsequently to the moving step of the closure member.

    摘要翻译： 在通过铸造将中空构件整体地附接到铸造产品的方法中，使得中空构件与铸造产品的中空内部连通，将封闭构件装配到中空构件的开口端中，使得开口端 中空构件被封闭构件封闭。 封闭构件从用于形成铸造产品的中空内部的芯部沿与芯从铸造产品中拉出的方向不同的方向突出。 在铸模被夹紧后，将熔融金属倒入铸模中。 在熔融金属凝固之后，封闭构件在芯内移动，使得封闭构件从中空构件中的配件释放。 随后在封闭构件的移动步骤之后，将芯体从固化的金属中拉出。