发明名称 Training wall for tennis or squash - consists of prefabricated playing surface elements on support frame anchored to floor
摘要 <p>The ball game wall is esp. for use as a tennis training wall, or for squash. It consists of a number of prefabricated wall elements (2), connected in a longitudinal direction of the wall, and forming the playing surface (1). The upper- and lower section (3, 4) of each element is arched or angled towards the player. The elements are fastened at the rear via a support arrangement. The arrangement is formed by a support frame (8), anchored in the floor, the legs (9) of which form inverted 'Y', when seem from the side. The elements are connected so as to be displaceable to a limited degree, and are supported by the floor. A catch net for the balls is positioned at the top of the wall elements. The arrangement may carry two playing surfaces, facing away from each other.</p>
申请公布号 DE2630772(A1) 申请公布日期 1977.12.15
申请号 DE19762630772 申请日期 1976.07.08
申请人 GUT,LEO 发明人 GUT,LEO
分类号 A63B69/00;(IPC1-7):63B69/38 主分类号 A63B69/00
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