PURPOSE: To permit such transfer performance to be exhibited with one rope, as equivalent to that in the case when a plurality of endless ropes are driven, by arranging said one rope in round to form a plural lines of ropes on the upper surface of a board.

CONSTITUTION: An endless rope 1 is arranged in round so as to form a plural lines of ropes 1a arranged in parallel on the upper surface of a floor base 2, through a plurality of rope turning members such as pulleys 3 etc. installed on the respective shaft at the both ends of the floor base 2, and driving pulleys 4a installed on a driving motor 4 are engaged with the rope 1 at the proper positions. Therefore, one rope 1 is transferred in circulation by the revolution- driving of the driving pulleys 4a, and a plural lines of ropes 1a arranged in parallel are transferred at an equal speed and in the same direction, on each upper and lower surface of the floor base 2, as if a plurality of endless ropes are transferred in circulation.