PURPOSE: To obtain a small device that can pile conveying objects regardless of their sizes by providing a cross-feed arm on a base through a lower fixed arm, and also providing a cross-feed arm, from which a adsorptive mechanism is suspended, through an upper fixed arm.

CONSTITUTION: A conveying object 25 is placed on rollers 8 fitted to a column 3 of a base 1 which forms a piling unit. When conveying objects 25 are piled, first, a linkage 17 is extended, a adsorptive mechanism 18 is lowered, and after the conveying object 25 is adsorbed by adsorptive members 22, the adsorptive mechanism 18 is raised again, raising the conveying object 25, by means of the operation of a brake motor 20 installed on an upper fixed arm 9. Then, a cross- feed arm 4 fitted in a lower fixed arm 2 and a cross-feed arm 14 fitted to the upper fixed arm 9 are extended respectively. After that, the raised conveying object 25 is lowered and the adsorptive action of the adsoptive mechanism 18 is released, placing the conveying object 25 on the cross-feed arm 4. And, then, same operation is repeated, piling up the conveying objects 25.