Mechanical guns and projectors – Electrically actuated projectile striker
Patent
1982-11-23
1987-05-12
Shapiro, Paul E.
Mechanical guns and projectors
Electrically actuated projectile striker
124 6, 124 82, A63B 6904
Patent
active
046640940
ABSTRACT:
In a training device for sports equipment, especially for serving tennis balls, the balls are supplied from a storage container through a laterally pivotable charging opening to a ball supply device. The ball supply device includes an endless belt circulating vertically over two rollers and the balls are rolled upwards beneath a lower roller and between the endless belt and a side wall of a housing of the ball supply device and roll over an upper roller into a waiting position. From the waiting position the balls arrive in a serving position on curved guide tracks of a supporting and guiding device provided with a ball striker. Between the guide tracks, a rotatable serving device is arranged on a base plate and is connected to a central shaft and a driving device for rotation therewith. The serving device has a serving plate pivotable into the ball serving track. The serving frequency and the flight path of the balls are adjustable through a control device. A gearing system with a free wheel clutch is provided for returning the serving plate into its initial position.
REFERENCES:
patent: 2057599 (1936-10-01), Serrano
patent: 3602208 (1971-08-01), Huerlimann
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