| 摘要 |
A tab (20), which is the cutting blade structure in a rolled object-storing case, is obtained from an A-PET sheet and is provided with perforations (21), which divide the tab (20) into a remaining portion (22) and a detaching portion (23). When the detaching portion (23) is pulled apart from the remaining portion (22) at the perforations (21), the areas between each of the openings (25) that configure the perforations (21) are pulled apart, resulting in the detaching portion (23) being separated from the remaining portion (22). As a result, the severed remaining portions (22) between each of the openings (25) become sharp toward the detached portion (23) side and function as a cutting blade (27). Separating the detaching portion (23) by pulling towards the sheet, which is the object that is cut during cutting, facilitates the leading edge of the cutting blade (27) piercing the sheet when cutting and improves the cutting ability thereof. |
