Roller, film applying apparatus, and film applying method

The present disclosure provides a roller comprising: a core portion having a cylindrical shape; a support portion located on a central axis of the core portion and configured to rotatably support the core portion; a foam body covering the entire circumference of the core portion and including a flat outer circumferential surface; an operating portion configured to operate the foam body; and a fixing portion configured to fix the support portion and the operation portion, in which at least one of end portions of the outer peripheral surface is bent toward a direction of the central axis. 本公开提供了一种辊，该辊包括：芯部分，该芯部分具有圆柱形形状；支撑部分，该支撑部分位于芯部分的中心轴线上并被配置为可旋转地支撑芯部分；泡沫主体，该泡沫主体覆盖芯部分的整个圆周并包括平坦的外周表面；操作部分，该操作部分被配置为操作泡沫主体；以及固定部分，该固定部分被配置为固定支撑部分和操作部分，其中外周表面的端部部分中的至少一个端部部分朝向中心轴线的方向弯曲。