Batting tee
    4.
    发明授权
    Batting tee 失效
    打三通

    公开(公告)号:US4962924A

    公开(公告)日:1990-10-16

    申请号:US440801

    申请日:1989-11-24

    申请人: William J. James

    发明人: William J. James

    IPC分类号: A63B69/00

    CPC分类号: A63B69/0075 A63B69/0002

    摘要: A batting tee includes a base plate having an upper surface and a lower surface including a slot extending in a plurality of discrete directions over said surfaces. A perimeter joining the upper and lower surfaces encompasses an area having a configuration of the sum of a conventional home plate and a forward extension thereto having outwardly flaring side edges. A fastener is situated in and is adjustably movable with respect to the slot. An upright ball support has a lower end coupled to the fastener and an upper end adapted to support a ball. The slot is in the form of inverted T-shaped groove in the upper surface of the base plate and include mutually confronting edges. A portion of the upper surface contiguous to the confronting edges are distinguished from the remainder of the upper surface of the base plate by a difference in surface color outlining the slot.

    摘要翻译: 捶击三通包括具有上表面和下表面的基板,所述底板包括在所述表面上沿多个离散方向延伸的槽。 连接上表面和下表面的周边包括具有常规本体板和其向前延伸部之和的构造的区域,其具有向外扩张的侧边缘。 紧固件位于并且可相对于狭槽可调节地移动。 直立球支架具有联接到紧固件的下端和适于支撑球的上端。 槽在底板的上表面中呈倒T字槽的形式,并且包括相互面对的边缘。 与面对面相邻的上表面的一部分与基板的上表面的其余部分不同,该凹槽的表面颜色不同。