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Single pillar-type American football goal was to achieve high strength of the strut and lighter fitting V-shaped key.
Single pillar-type American football goal was to achieve high strength of the strut and lighter fitting V-shaped key.
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机译：单柱型美式足球的目标是实现高强度的支撑和更轻巧的V形钥匙。
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摘要
The present invention is removal installed to provide easy single pillar-type American football goal. And detachably joining the buried pipe with struts via key 10 provided to the solving means] the bottom of the inner tube 6 of the lower end of the buried pipe 4 of the post 1. Since the parallel key is sand often ground becomes difficult disengaged by biting sand, using a V-shaped keys properly selected angular, is bonded to the V-shaped key groove provided in the bottom of the inner tube.BACKGROUND.
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