| 摘要 |
PROBLEM TO BE SOLVED: To provide a telescopic ball tank rack capable of enduring weight of a ball tank storing a large number of game balls.SOLUTION: A rack includes a telescopic rack rail on which a ball tank is placed, and leg parts provided at both ends of the rack rail. The rack rail includes a tubular outer rail, and an inner rail fitted into the outer rail. The total length is changed according to the amount of fitting. The inner rail is formed by combining two C-shaped steel materials back to back such that the openings face outward and are parallel each other. |
