As the cartridge for the cartridge timber for wooden box

摘要

To improve a buffer effect on cartridges as well as to make it possible to suppress deformation or breakage of the cartridges in the case where, after a storage case containing the data recording cartridges has been put in an outer case for packaging, the outer case is dropped. A sheet-shaped member is folded so as to cover an upper surface, a lower surface, and one side surface of a storage case 40 to form a backing plate member 30. The backing plate member 30 is formed with first cutout portions 35a for receiving first projecting portions 48a of an upper surface of the storage case 40, and second cutout portions 35b for receiving second projecting portions 48b of a lower surface the storage case 40.