发明名称 Sports device
摘要 Sports device consisting of an annular outer circle which is provided with bow-shaped or areal gripping or supporting elements arranged distributed about the periphery on the inner sides, and in which the annular outer circle consists of an inflated rubber or plastic skin and is held in the area of its bilateral peripheral walls between two rigid and likewise annular side circles extending in parallel planes, which side circles are connected to form a rigid frame by means of transverse webs extending within the outer circle. In this case the annular, rigid frame formed by the rigid side circles and the transverse webs can consist of several frame elements joined together by means of positive plug connections, and the frame elements joined together by means of the plug connections can be braced together by means of one or more bracing elements pretensioned about the transverse webs and forming a closed ring.
申请公布号 DE3904275(A1) 申请公布日期 1990.08.16
申请号 DE19893904275 申请日期 1989.02.14
申请人 RUH, WOLFGANG, 7850 LOERRACH, DE 发明人 RUH, WOLFGANG, 7850 LOERRACH, DE
分类号 A63B19/02 主分类号 A63B19/02
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