COMMODITY STORAGE DEVICE

PROBLEM TO BE SOLVED: To provide a commodity storage device including a conveyor mechanism capable of applying required tension to a belt without complicating a structure.SOLUTION: A commodity storage device 10 comprises a commodity rack 28. The commodity rack 28 includes: a drive unit 50 having a motor 44, and a rotor 62 rotated by receiving rotational driving force of the motor 44 in a housing 46, and provided at an upstream side of a commodity conveyance path 48; and a conveyor mechanism 52b having a belt 56 run by the drive unit 50, for conveying commodities G on a conveyance surface 56a of the belt 56 in a conveyance direction A. The conveyor mechanism 52b includes: a driving roller 96 provided at an upstream side in the conveyance direction A, and rotationally driven by the rotor 62 of the drive unit 50; a driven roller 98 provided at a downstream side in the conveyance direction A; the belt 56 stretched between the driving roller 96 and the driven roller 98 in an endless manner; and a tension roller 106 arranged at a position closer to the driving roller 96 than the driven roller 98, for applying tension to the belt 56.