Method for manufacturing a sports racquet and a sports racquet obtained thereby
    3.
    发明申请
    Method for manufacturing a sports racquet and a sports racquet obtained thereby 有权
    制造运动球拍的方法和由此获得的运动球拍

    公开(公告)号:US20070238560A1

    公开(公告)日:2007-10-11

    申请号:US11707845

    申请日:2007-02-15

    IPC分类号: A63B59/00 A63B49/02

    摘要: The present invention relates to a method for manufacturing at least a portion of a sports racquet frame that comprises a step a) of providing a moldable tube structure containing a first inflatable bladder and a second inflatable bladder. The first and second inflatable bladders are positioned on opposite first and second regions of the moldable tube structure. At an intermediate region, the tube structure comprises one or more cross channels, which pass through the moldable tube structure. The method according to the present invention comprises also a further step b) of inserting said tube structure inside a mold forming a mold cavity of a desired shape. Mold members are inserted into the cross channels of the tube structure, so that the outer surface of the mold member faces the inner surface of the corresponding cross channel. The mold members have position and orientation that correspond to the position and orientation, along the string bed plane, of the string port holes, which are to be formed on said frame portion. The method, according to the present invention, comprises also a step c) of pressurizing the first and second bladders, so that the tube structure conforms to the shape of the mold, and heating the mold, so that the tube structure cures. The method, according to the present invention, comprises a further step d) of removing the cured tube structure from the mold cavity and removing the mold members from the cross channels.

    摘要翻译: 本发明涉及一种用于制造运动球拍框架的至少一部分的方法,该方法包括以下步骤:a)提供包含第一可充气囊和第二可膨胀囊的可成型管结构。 第一和第二充气囊定位在可模制管结构的相对的第一和第二区域上。 在中间区域,管结构包括穿过可模制管结构的一个或多个交叉通道。 根据本发明的方法还包括将所述管结构插入形成所需形状的模具腔的模具内的另一步骤b)。 模具构件插入到管结构的横向通道中,使得模具构件的外表面面对相应交叉通道的内表面。 模具构件具有对应于要形成在所述框架部分上的弦孔口的沿着弦床平面的位置和取向的位置和取向。 根据本发明的方法还包括对第一和第二囊进行加压的步骤c),使得管结构符合模具的形状并加热模具,使得管结构固化。 根据本发明的方法还包括从模腔中去除固化的管结构并从交叉通道移除模具构件的另外步骤d)。

    Sports racquet with multi-section frame
    4.
    发明授权
    Sports racquet with multi-section frame 有权
    运动球拍多段框架

    公开(公告)号:US08079924B2

    公开(公告)日:2011-12-20

    申请号:US12400097

    申请日:2009-03-09

    IPC分类号: A63B49/02

    CPC分类号: A63B49/02 Y10T29/49826

    摘要: A sports racquet frame is formed from a plurality of frame sections, some sections formed of a single tubular member and other sections formed of double tubular members. The double tube sections preferably contain string port holes. Also, different frame sections can be made of different materials, e.g., carbon fiber-reinforced composites and aluminum.

    摘要翻译: 运动球拍框架由多个框架部分形成,一些部分由单个管状部件形成,并且由双管状部件形成。 双管段优选地包含串口孔。 此外,不同的框架部分可以由不同的材料制成,例如碳纤维增强复合材料和铝。

    Sports racquet with string port holes
    10.
    发明授权
    Sports racquet with string port holes 有权
    运动球拍与弦孔孔

    公开(公告)号:US07935286B2

    公开(公告)日:2011-05-03

    申请号:US11584200

    申请日:2006-10-20

    IPC分类号: B29D19/08

    摘要: A sports racquet having a plurality of string port holes and conventional string holes is formed of a single tube of prepreg material. When molded, mold elements press opposed portions of the prepreg tube into contact with one another, and shape the adjoining prepreg material into a string port hole blanks. The portion of the pressed-together material which initially blocks the string port hole is removed after molding so that the string port holes extend through the frame. Alternatively, the mold elements cause the prepreg tube to follow a serpentine shape, thereby defining string port holes which are open alternately along the top and bottom surface of the frame. A pair of cover rings may be secured to the top and bottom racquet surfaces to cover the open sides of the string port holes.

    摘要翻译: 具有多个串口孔和常规绳孔的运动球拍由单个预浸料坯材料形成。 当模制时,模具元件将预浸料管的相对的部分彼此接触,并将相邻的预浸料坯材料成形为串口孔坯料。 在模制之后,最初阻塞弦孔孔的压合材料的部分被去除,使得琴弦孔口延伸穿过框架。 或者,模具元件使得预浸料管遵循蛇形形状,从而限定沿框架的顶表面和底表面交替打开的排孔。 一对盖环可以固定到顶部和底部球拍表面以覆盖琴弦孔口的开口侧。