Pneumatic tire with metal cord and method of manufacturing metal cord
    223.
    发明公开
    Pneumatic tire with metal cord and method of manufacturing metal cord 有权
    Reifen mit metallischem Kord und Herstellungsverfahren dazu

    公开(公告)号:EP1630002A1

    公开(公告)日:2006-03-01

    申请号:EP05016906.9

    申请日:2005-08-03

    Inventor: Sarashi, Hiroki

    Abstract: A pneumatic tire includes metal cords each made of metal filaments twisted together, the metal cords having an initial elongation in a range of from 0.05 to 0.20 % and a standard deviation of the initial elongation in a range of not more than 0.02. A method of manufacturing the metal cord comprises shaping metal filaments in a two-dimensional zigzag waveform, and twisting the shaped metal filaments together, wherein the number of the filaments is in a range of from 8 to 12, the metal filaments have the same diameter (d) of from 0.15 to 0.30 mm, the shaped metal filaments have the same zigzag waveforms, the zigzag waveform of each said shaped metal filament has constant wave lengths (P) and constant wave heights (h) wherein the ratio (P/d) is in the range of 100/3 to 700/3, and the ratio (h/d) is in the range of 5/3 to 80/3.

    Abstract translation: 充气轮胎包括金属帘线,金属帘线由金属丝绞合在一起,金属帘线的初始伸长率为0.05-0.20%,初始伸长率的标准偏差不大于0.02。 制造金属帘线的方法包括以二维之字形波形成形金属细丝,并将成形的金属丝扭转在一起,其中细丝的数量在8至12的范围内,金属细丝具有相同的直径 (d)of

    Multi-strand steel cord
    227.
    发明公开
    Multi-strand steel cord 失效
    Stahlseil mit mehreren Litzen。

    公开(公告)号:EP0602733A1

    公开(公告)日:1994-06-22

    申请号:EP93203477.0

    申请日:1993-12-10

    Abstract: A steel cord (10) has a diameter D and comprises a core strand (12) and up to nine peripheral strands (14) surrounding the core strand. The core strand (12) has a diameter D1 and the peripheral strands (14) have a diameter D2. The ratio core strand diameter to peripheral strand diameter D1/D2 is greater than a predetermined value in order to enable rubber penetration. Each strand comprises a centre of one or more centre filaments (16,22) and two or more layers of filaments (18,20,24,26) surrounding the centre.
    The twist angle of a radially outer layer is smaller than the twist angle of a radially inner layer of the same strand. A first free space (28) ranging from 0.0015xD to 0.0075xD is provided in at least the core strand (12) between each pair of filaments (18) of the radially most inner layer.

    Abstract translation: 钢帘线(10)具有直径D,并且包括芯股(12)和包围芯线的多达九个周边股(14)。 芯股线(12)具有直径D1,外围股线(14)具有直径D2。 芯线股直径与周长股直径D1 / D2的比值大于预定值,以使橡胶渗透。 每根股线包括围绕中心的一个或多个中心细丝(16,22)和两层或更多层细丝(18,20,24,26)的中心。 径向外层的扭转角小于同一股线的径向内层的扭转角。 至少在径向最内层的每对细丝(18)之间的芯股(12)中设置有从0.0015×D至0.0075×D的第一自由空间(28)。

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