发明名称 Tennis machine
摘要 A tennis machine is provided which substantially possesses a stand (1) and a boom movably fixed thereto, at one free end of which boom a playing ball (4) in the form of a tennis ball or a tennis ball imitation is rotatably fixed and three-dimensionally guided thereby, the boom being designed as a flexurally rigid playing bar (3) which is mounted in a playing bar mounting (2) to be capable of a limited lateral and longitudinal displacement and retraction, the playing bar mounting (2) being pivotable vertically and horizontally on the stand (1), designed as a pipe (5) on a ballast container (6), and a motor drive (36) being provided on the playing bar mounting (2) for the transportation of the playing bar (3). <IMAGE>
申请公布号 DE3729933(A1) 申请公布日期 1989.03.16
申请号 DE19873729933 申请日期 1987.09.07
申请人 MOENCH,JULIUS;BRUNOW,HELGE 发明人 MOENCH,JULIUS;BRUNOW,HELGE
分类号 A63B69/00 主分类号 A63B69/00
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