Ball-hitting practice device

Amusement devices: games – Aerial projectile game; game element or accessory therefor... – Target

Patent

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Details

273 29A, 273184B, 273185D, 273197A, A63B 6940

Patent

active

051335492

ABSTRACT:
A ball-hitting practice device having support arms rotatable about an axis with the arm rotation restrained by a torque releasable clutch. The clutch has a fixed clutch plate having a pair of recesses in a surface facing a rotatable clutch plate. The rotatable clutch plate includes a pair of engagement balls adapted to be received within the recesses. A spring biases the clutch plates together. Biasing of the two clutch plates is adjustable for varying of the resistance to unseating the engagement balls from the recesses. A pair of support arms having practice balls mounted thereto by coil springs are attached to the rotatable clutch plate for rotation about a generally horizontal axis. Striking of a practice ball with a level swing causes movement of the practice ball about an arc of 180 degrees to a second rest position. The bias between the clutch plates is adjusted such that a swing that is not level will not effect a 180 degree rotation of a practice ball.

REFERENCES:
patent: 959402 (1910-05-01), Sullivan
patent: 1777350 (1930-10-01), Carlond
patent: 1808390 (1931-06-01), Volk
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patent: 2818255 (1957-12-01), Ponza
patent: 3118670 (1964-01-01), Smith
patent: 3408070 (1968-10-01), Gonzales et al.
patent: 3794320 (1974-02-01), Salmont
patent: 4460172 (1984-07-01), Hogan
patent: 4508339 (1985-04-01), Llewellyn
patent: 4679790 (1987-07-01), Ham

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