ACCOMMODATION UNIT AND WOUND BODY

To improve storage volumetric efficiency of a linear material, a storage unit of the present disclosure includes: a wound body formed by winding a linear material; and a storage body configured to store the wound body. The wound body includes: a first spiral part wherein the linear material is wound in a plurality of turns in a first direction which is either clockwise or counterclockwise, and the distance between the linear material of the first spiral part and the center decreases as the linear material is spirally wound; a first inversion part located inside the first spiral part, and configured to invert a winding direction of the linear material from the first direction to a second direction which is opposite to the first direction; and a second spiral part located outside the first inversion part, wherein the linear material is wound in a plurality of turns in the second direction, and the distance between the linear material of the second spiral part and the center increases as the linear material is spirally wound.