Mechanical guns and projectors – Spring – Guided projectile
Patent
1986-04-03
1988-01-26
Scanlan, Jr., Richard J.
Mechanical guns and projectors
Spring
Guided projectile
124 7, 124 81, 124 16, 192 41S, F41F 700
Patent
active
047210915
ABSTRACT:
A ball projecting machine comprises a ball striker in the form of a bar secured to a shaft rotatably mounted by bearings in a part of a machine frame. The striker carries a pin on the same side of the shaft as the end of the striker which strikes the balls. A tension spring is connected between a fixed part of the machine frame and the pin to bias the striker. The striker shaft is arranged to be rotated by a manually operated lever so that during a cycle of rotation of the striker in the striking direction, the tension spring is stressed during a first part of the cycle and during a second part of the cycle urges the striker to rotate in the striking direction. The lever is connected to the shaft through a first one-way clutch including a coil spring and drums fixed respectively to the lever and to the shaft. The shaft is connected to the machine frame part through a further one-way clutch including a coil spring and drums fixed respectively to the frame part and to the shaft. The arrangement is such that the manual rotation of the lever rotates the striker against the tension spring until the over-center position of the spring is reached, whereafter the striker rotates rapidly in the striking direction under the influence of the stressed spring to strike and project the ball. Thereafter, the striker continues to rotate under the influence of kinetic energy and stresses the spring until the latter overcomes the kinetic energy. At this time, the striker is prevented from reverse rotation by the further one-way clutch between the shaft and the frame part rather than by the first one-way clutch between the shaft and the lever. This avoids any need for the lever to be held or rotated in the striking direction after a ball has been struck and before another is to be struck.
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Ridley Michael G.
Will Peter M.
Knight Anthony
Scanlan, Jr. Richard J.
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