发明名称 Batter's Box
摘要 The Batter's Box device is an instruction tool to help children, primarily but not limited to ages 5-12, learn two aspects of proper hitting mechanics for baseball and softball: 1) feet placement base, and 2) stride. Stride has two components, length and direction. The batter's box teaches feet placement and stride by limiting the movement of the batter's feet. The batter's box is a rectangular frame that is placed on the ground. The batter stands in the frame of the batter's box and two bungee cords, one attached to the frame in front of the back foot and one attached to the frame in front of the lead, or stride, foot, create a barrier that will constrain the batter's feet (the back foot and the stride foot) if they move with improper technique. The batter's box is adjustable for player's of different height and size. The frame may be widened and the restrictive bungee cords can be placed at various increments to complement longer or shorter legs.
申请公布号 US2009233737(A1) 申请公布日期 2009.09.17
申请号 US20090389548 申请日期 2009.02.20
申请人 LERCH DAVID 发明人 LERCH DAVID
分类号 A63B69/00 主分类号 A63B69/00
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