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    Method of making a single rear fork bicycle frame
    1.
    发明授权
    Method of making a single rear fork bicycle frame 失效
    制造单个后叉自行车车架的方法

    公开(公告)号：US5676780A

    公开(公告)日：1997-10-14

    申请号：US445249

    申请日：1995-05-19

    申请人： Yu-Hsuan Chen ,  Rong-Shian Liu ,  Chin-I Lin ,  Gou-Don Chu

    发明人： Yu-Hsuan Chen ,  Rong-Shian Liu ,  Chin-I Lin ,  Gou-Don Chu

    IPC分类号： B62K11/02 ,  B29C70/06 ,  B29C70/34 ,  B29K105/08 ,  B29L31/30 ,  B62K19/16 ,  C08J5/24 ,  B29C43/10 ,  B29C65/02 ,  B32B5/20 ,  B32B5/28

    CPC分类号： B29C70/345 ,  B29C70/342 ,  B62K19/16 ,  B29C2791/001 ,  B29L2031/3091

    摘要： A composite legal type bicycle frame is disclosed which contains a front frame portion and a rear frame portion. The front frame portion contains a central main and a plurality of legs for connecting the central main with various components of the bicycle, and the rear frame portion contains a rear fork, which consists of a left rear branch and a right rear branch. The left and right rear branches are first cured and glued together at respective abutting surfaces thereof to form an integral rear fork before they are adjoined with the front frame portion, via prepregs and using a cocuring procedure. The left and right rear branches are formed to contain cross-shaped matching protrusion and recess, respectively, on the abutting surfaces thereof, so as to enhance the integrity of the integral rear fork. As a result, a great flexibility of design options can be obtained. For example, the rear fork can be connected to one of the legs but not to the central main. Also, the front frame portion can be designed such that one of the legs is connected indirectly to the central main via another leg, and not directly connected to the central main.

    摘要翻译： 公开了一种复合法式自行车车架，其包括前框架部分和后框架部分。 前框架部分包括用于将中央主体与自行车的各种部件连接的中心主体和多个腿，并且后框架部分包含由左后分支和右后分支组成的后叉。 左右后分支首先在相应的邻接表面固化并胶合在一起，以便在与前框架部分相邻之前通过预浸料并使用共固化方法形成一体的后叉。 左右后分支形成为在其邻接表面上分别包含十字形匹配突起和凹部，以便增强整体后叉的完整性。 因此，可以获得极大的灵活性的设计选项。 例如，后叉可以连接到其中一个腿，而不是连接到中心主。 此外，前框架部分可以被设计成使得一个腿经由另一个腿间接地连接到中心主体，并且不直接连接到中心主体。