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    • 3. 发明申请
    • RACQUET HAVING ARTICULATING GROMMET ASSEMBLIES
    • 具有曲线组合的场地
    • US20110039641A1
    • 2011-02-17
    • US12641957
    • 2009-12-18
    • William D. SeveraDonald G. LoefflerRonald R. RocchiCory Boudreau
    • William D. SeveraDonald G. LoefflerRonald R. RocchiCory Boudreau
    • A63B49/14A63B51/10
    • A63B49/028A63B49/022A63B49/10A63B2209/02
    • A sports racquet including a frame, at least one grommet assembly. The frame includes a head portion coupled to a handle portion. The head portion includes a hoop having inner and outer peripheral walls. At least a first set of concave recesses and channels are formed into the outer peripheral wall. The hoop includes first, second and third groups of string openings. The second and third groups of string openings are aligned with the first set of concave recesses. The second group of string openings extends through the outer peripheral wall at the first set of concave recesses. The grommet assembly engages the outer peripheral wall. The grommet assembly includes at least three pivotable elements interconnected by torque transmitting arms, each pivotable element including a string passage. The pivotable elements and the torque transmitting arms are pivotable about an axis parallel to a string bed plane.
    • 一种运动球拍,其包括框架,至少一个索环组件。 框架包括联接到手柄部分的头部。 头部包括具有内周壁和外周壁的箍。 至少第一组凹形凹槽和通道形成在外周壁中。 箍包括第一组,第二组和第三组弦组。 第二组和第三组弦线开口与第一组凹形凹槽对准。 第二组弦线开口在第一组凹形凹槽处延伸穿过外周壁。 索环组件接合外周壁。 索环组件包括至少三个通过扭矩传递臂互连的可枢转元件,每个可枢转元件包括一个通道。 可枢转元件和扭矩传递臂可绕平行于弦床平面的轴线枢转。