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    Siped tire tread with high transverse stiffness
    1.
    发明授权
    Siped tire tread with high transverse stiffness 失效
    胎面横向刚度高

    公开(公告)号：US07188650B2

    公开(公告)日：2007-03-13

    申请号：US11023818

    申请日：2004-12-28

    申请人： Gia-Van Nguyen ,  Anne-France Gabrielle Jeanne-Marie Cambron ,  Alain Francois Emile Roesgen

    发明人： Gia-Van Nguyen ,  Anne-France Gabrielle Jeanne-Marie Cambron ,  Alain Francois Emile Roesgen

    IPC分类号： B60C11/12

    CPC分类号： B60C11/12 ,  B60C11/1218 ,  B60C11/1281 ,  Y10S152/03 ,  Y10S152/902

    摘要： A tire includes a plurality of tread blocks disposed circumferentially around the tire. At least one sipe is formed into at least one of the tread blocks and is defined by first and second confronting sidewalls. The sipe has a cross-sectional profile in a plane generally perpendicular to the top surface of the tread block, which profile has a generally arcuate central portion and first and second ends separated by the central portion. The sidewalls are spaced apart at least one first width at the central portion of the sipe, and are spaced apart at least one second width at the ends, wherein the second width is greater than the first width. In one embodiment, the sipe has a cross-sectional profile having a stepped configuration.

    摘要翻译： 轮胎包括围绕轮胎周向设置的多个胎面花纹块。 至少一个刀槽花纹形成至少一个胎面花纹块，并且由第一和第二面对侧壁限定。 刀槽花纹在大致垂直于胎面花纹块的顶表面的平面中具有横截面轮廓，该轮廓具有大体上弧形的中心部分，并且由中心部分分开的第一和第二端部。 侧壁在刀槽花纹的中心部分间隔开至少一个第一宽度，并且在端部间隔至少一个第二宽度，其中第二宽度大于第一宽度。 在一个实施例中，刀槽花纹具有阶梯形轮廓。

    Device for molding a keyhole sipe in a tire tread
    2.
    发明授权
    Device for molding a keyhole sipe in a tire tread 有权
    用于在轮胎胎面中成型钥匙孔刀槽花纹的装置

    公开(公告)号：US07661942B2

    公开(公告)日：2010-02-16

    申请号：US11186612

    申请日：2005-07-21

    申请人： Gia-Van Nguyen ,  Alain Francois Emile Roesgen ,  Anne-France Gabrielle Jeanne-Marie Cambron

    发明人： Gia-Van Nguyen ,  Alain Francois Emile Roesgen ,  Anne-France Gabrielle Jeanne-Marie Cambron

    IPC分类号： B29C33/44 ,  B29D30/58 ,  B60C11/12

    CPC分类号： B29C33/44 ,  B29D2030/0613 ,  B60C11/0323 ,  B60C11/12 ,  B60C11/1281 ,  B60C11/13 ,  Y10S152/03 ,  Y10S425/058

    摘要： The present invention provides for an improved device for molding keyhole sipes larger in size, i.e. sipes having a wider passage, than currently being formed in treads that will avoid damaging the tread during formation and removal thereof from a mold. The device includes an elongated deformable body member having a blade extending in a direction away therefrom and substantially along the length thereof. The body member also includes a stiffening member securely fixed in position therein that extends substantially the length thereof. The stiffening member provides a desired rigidity to the deformable body member, thereby limiting flexion along its length under the stress of a rubber formulation when the mold is closed during the molding process. Also, the deformable body member provides low stress on the tread when a slit of the keyhole sipe is pulled around the body member during removal of the tread from a mold.

    摘要翻译： 本发明提供了一种改进的装置，其用于模制尺寸较大的锁眼刀槽花纹，即具有比当前在胎面中形成的更宽通道的刀槽花纹，其将避免在成形期间损坏胎面并且将其从模具移除。 该装置包括细长的可变形主体构件，其具有沿着远离其的方向延伸并基本上沿其长度延伸的叶片。 主体构件还包括牢固地固定在其中的基本上延伸长度的加强构件。 加强构件为可变形的主体构件提供期望的刚性，从而在模制过程中关闭模具时，在橡胶配方的应力下沿其长度限制弯曲。 此外，当从模具中取出胎面时，当将钥匙孔刀槽花纹的狭缝拉到主体构件上时，可变形体构件在胎面上提供低应力。