| 摘要 |
An apparatus is set forth including a support platform mounting a positioning tube telescopingly receiving an adjusting tube therein, wherein the adjusting tube mounts a joint member to secure a delivery tube at an upper end thereof. The delivery tube includes an outwardly oriented lowermost tube for delivery of a baseball to an associated batter. The invention further provides structure to include an arcuate directing tube and a funnel at an upper end of the delivery tube, with a selectively mounted lower arcuate directed tube mounted to a lower end of the delivery tube to permit modification and variation of a baseball being directed through the delivery tube. The delivery tube may be further pivotally mounted at its lower end, including an adjustment leg at a rear end for rear end angularity of the delivery tube.
|
