To solve a problem in which bundles of paper money are fed in an irregular state due to a difference in circumferential velocities between inner and outer belts occurring in U-shape reversing path and introduced to be piled up in a state of out of alignment in a paper money storage unit as they are, when feeding the bundles of the paper money while holding them between the belts.

In a bundle of paper sheets feeding mechanism for feeding bundles of paper sheets while holding the bundles by a feeding area T formed between an inside belt 63 and an outside belt 73, an opening part O having no outside belt on an outer circumference of a reversing roller 62a composing of an inside belt unit 61, and a guide member 80 shaped in a circular arc facing an outer circumference face of the roller 62a is disposed in the part O.

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