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    GROMMET AND RACKET
    3.
    发明公开
    GROMMET AND RACKET 审中-公开

    公开(公告)号：EP3936199A1

    公开(公告)日：2022-01-12

    申请号：EP20770809.0

    申请日：2020-03-06

    申请人： Yonex Co. Ltd.

    发明人： KAWABATA, Masato ,  KATO, Hitoshi ,  NAGASAWA, Koji ,  INOUE, Nao

    IPC分类号： A63B49/022 ,  A63B60/54 ,  A63B102/02

    摘要： Structures with racket performance varied according to the configurations of cylindrical parts can be easily used. A grommet (25-28) includes a cylindrical part (32) which is mounted pierced through a through hole (23) formed in a frame (20) of a racket (10) and through which a string (21) passes. The string is extended in a tensioned state on the frame so as to form front and back faces as hitting faces (22). The cylindrical part includes a first formation section (35) forming both sides of a central axis position (C) of the cylindrical part and a second formation section (36) rotationally shifted with reference to the central axis position by 90 degrees relative to the first formation section and forming both sides of the central axis position. One of the first and second formation sections is disposed on both sides in a front/back direction. The first and second formation sections each have a different rigidity.

    RACKET
    5.
    发明公开
    RACKET 审中-公开

    公开(公告)号：EP3865191A1

    公开(公告)日：2021-08-18

    申请号：EP21156229.3

    申请日：2021-02-10

    申请人： Sumitomo Rubber Industries, Ltd.

    发明人： YAMAMOTO, Yosuke ,  SAKAMOTO, Naoka

    IPC分类号： A63B49/022 ,  A63B49/028 ,  A63B60/52 ,  A63B49/02

    摘要： A tennis racket includes a frame 4 and a grommet 10. The frame 4 includes a grommet groove 22, a small groove 38, and a hole 24. The small groove 38 is recessed from the grommet groove 22. The grommet 10 includes a base 26 and a pipe 28. In a state where the grommet 10 is attached to the frame 4, the base 26 is accommodated in the grommet groove 22, and the pipe 28 extends through the hole 24. The base 26 is not positioned inside the small groove 38. Therefore, at the back of a back side surface 32 of the base 26, there is a space derived from the small groove 38.