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1. 发明授权

US5251894A Baseball base with force absorbing slide feature 失效
标题翻译：具有吸力滑块功能的棒球基座
公开(公告)号：US5251894A
公开(公告)日：1993-10-12
申请号：US988289
申请日：1992-12-08
申请人： Jesse G. Boatman
发明人： Jesse G. Boatman
IPC分类号： A63B69/00 , A63B71/00
CPC分类号： A63B69/0013
摘要： A base for use in the game of baseball comprising a resilient curved top wall having perpendicular downwardly extending side walls connected to define corners of a truncated frustrum of a pyramid. A post member is attached to the under surface of the top wall and centrally thereof. A first plurality of spaced ribs extending from the post member to a perpendicular midpoint of the side walls and the corners defined by the side walls, the ribs further being attached to the under surface of the top wall. A second plurality of spaced ribs running substantially normal to and connecting the inner surfaces of opposite side walls at points intermediate the midpoints and corners. A base anchor is provided for receiving the post member for receiving the post member to fasten the base to a playing field.
摘要翻译：一种用于棒球比赛的基座，包括一个具有垂直向下延伸的侧壁的弹性弯曲顶壁，该侧壁连接以定义金字塔的截头圆锥形的角部。柱构件附接到顶壁的下表面和其中心。从柱构件延伸到侧壁的垂直中点的第一多个隔开的肋和由侧壁限定的角部，肋条还附接到顶壁的下表面。第二多个隔开的肋，其基本上垂直于并连接相对侧壁的内表面在中点和拐角处的点处。提供基座锚，用于接收用于接收柱构件的柱构件以将基座固定到游戏区域。

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