Patent ID: 7967128

Claim:
An article conveying device, comprising: a plurality of fixed floors; a plurality of moving floors; and a raising/lowering drive device that performs a raising/lowering operation of the plurality of moving floors; wherein a floor surface of each of the plurality of fixed floors is arranged to form a descending slope towards a downstream side in a conveying direction with respect to each other, each of the plurality of moving floors is adjacently arranged on a side in the conveying direction with respect to each fixed floor, the raising/lowering drive device simultaneously positions a respective floor surface of each moving floor at a high position or a low position with respect to a floor surface of the adjacent fixed floor, the raising/lowering drive device repeatedly performs the raising/lowering operation, the floor surface of each moving floor positioned at the high position is arranged to form a descending slope towards the downstream side in the conveying direction with respect to each other, the floor surface of each fixed floor is inclined to form a descending slope towards the downstream side in the conveying direction, the floor surface of each moving floor is also inclined to form a descending slope towards the downstream side in the conveying direction, and an angle of the floor surface of each moving floor with respect to a horizontal plane is larger than an angle of the floor surface of each fixed floor with respect to the horizontal plane.