PURPOSE: To easily draw out a slide table irrespective of the height of the table and to facilitate work by providing to a slide table driving rollers movable back and forth on guide rails and a driver, and by providing is a means for detecting the positions where the table is fully drawn out pushed in.

CONSTITUTION: On a rack frame 1 a pair of right and left guide rails 10 are provided in a plurality of tiers, and front and back plates 16, 17 are provided. A slide table 18 between the guide rails 10 is provided with guide rollers 19 supported and guided by rail members 15 on both sides of the rear thereof and on one side of the intermediate part and also provided with side guide rollers 20, 21. On the other side of the intermediate part of the slide table a driving roller supported and guided by thg rail members 15 and a motor 24 are provided and interlocked with sub-rockets, 25, 26 and a chain 27. The slide table 18 and the guide rails 10 are provided with a magnetic proximity switch 28, 29 and a magnet 30. Hence, the slide table 18 can travel freely between two limit positions where the slide table is freely drawn out and pushed in.