To move and run only the device, without moving the articles placed on the device, by superposing a belt conveyer combining a rod form roller and a belt in two stages in specific structure.

In a very thin system structure in which a belt conveyer form of system assembling a rod form roller 1 and a belt 2 at both ends is set in an adequate clearance by a side panel 3, and combined in two stages, and formed by making the form 7 to cover the lower stage conveyer by a specific film sheet 6 and the upper stage conveyer in order to make its thickness as thin as possible, either one side of the upper and the lower rotating operations, and a force moment are interlocked each other, And the articles placed on this device are not moved longitudinally and laterally, but only the device at the lower side is moved, to realize such a function and an operation.