To provide an accumulator with high accumulation rate of a sheet-like object, by reducing the size of the accumulator compared with the related art.

The accumulator 100 comprises a rotating member 110 rotatable around a rotational shaft 110a vertical to an entering direction of the sheet-like object 1 and in parallel with a sheet face of the object 1; and two main abutment pins 121/122 supported at positions away from the rotational shaft 110a by a predetermined distance in the rotating member 110, and having an axial direction in parallel with an axial direction of the rotational shaft 110a. The rotating member 110 is rotated with the object 1 inserted between the two main abutment pins 121/122, and the object 1 abuts with the two main abutment pins 121/122 and is curled to be accumulated by the accumulator 100.