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    • 17. 发明申请
    • Portable Baseball Backstop
    • 便携式棒球支架
    • US20170056738A1
    • 2017-03-02
    • US15225112
    • 2016-08-01
    • Mark EscamillaWilliam Brown
    • Mark EscamillaWilliam Brown
    • A63B63/08
    • A63B71/022A63B2071/025A63B2102/18A63B2210/50
    • Disclosed herein is a portable baseball backstop mounted on a vehicle trailer and includes a 3 section fencing unit, with optional fourth section placed above the center portion of the 3 section unit. The backstop is permanently attached or mounted to the trailer and easily placed at the desired location for set up and use by players. The backstop is lifted with the help of a winch/pulley system out of the trailer and set up on the ground with the trailer serving as support system for the backstop. Each of the sections of the 3 section unit are secured in the ground for safe use of the backstop and to eliminate any falling of the backstop during play. The backstop is also secured sufficiently to withstand baseball speeds of about 90+ miles per hour.In particular disclosed herein is a first and second planar fence sections. The first planar fence section is attached to a movable shaft. The movable shaft is pivotally connected to a first end of a trailer. The second planar fence section is attached to the first planar fence section, and the second planar fence section is movable with respect to the first planar fence section. A winch is fixed on a second end of the trailer for lifting the movable shaft from a first position to a second position. A pulley system is attached at the first end of the trailer. A cable wound over the winch is secured to the shaft through the pulley system. The portable baseball backstop assembly is easily transported with the trailer, and assembled for use at a variety of locations. The trailer serves to both secure the backstop and transport it to desired locations.
    • 这里特别公开的是第一和第二平面围栏部分。 第一平面围栏部分附接到可移动轴。 可动轴枢转地连接到拖车的第一端。 第二平面栅栏部分附接到第一平面栅栏部分,第二平面栅栏部分可相对于第一平面栅栏部分移动。 绞车固定在拖车的第二端上,用于将可动轴从第一位置提升到第二位置。 在拖车的第一端安装滑轮系统。 卷绕在绞盘上的电缆通过滑轮系统固定在轴上。 便携式棒球逆止器组件易于与拖车一起运输,并组装在各种位置使用。 拖车用于确保后挡板并将其运输到所需的位置。