Roller, film adhering apparatus and film adhering method

A film application device adhesively attaching a film to a target object, the film application device comprising:

• a roller configured to adhesively attach the film to the target object;
• and
• a control unit configured to control movement of the roller, wherein the roller comprises:
• 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 an entire circumference of the core portion and comprising an outer circumferential surface being flat;
• an operation portion configured to operate the foam body;
• and
• a fixing portion configured to fix the support portion and the operation portion, wherein the fixing portion comprises a weight enabling adjustment of a load for pressing the foam body;
• at least one end portion of the outer circumferential surface bends toward a direction of the central axis, and
• the control unit performs six-axis control on the roller.

A film application method of adhesively attaching a film to a target object by using a roller,

• the 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 an entire circumference of the core portion and comprising an outer circumferential surface being flat;
• an operation portion configured to operate the foam body;
• and
• a fixing portion configured to fix the support portion and the operation portion, wherein the fixing portion comprises a weight enabling adjustment of a load for pressing the foam body;
• at least one end portion of the outer circumferential surface bending toward a direction of the central axis, the film application method comprising:
• adhesively attaching a first portion of the film by using the roller;
• moving the roller to a position where the outer circumferential surface of the foam body is located at the first portion of the film, and a position where the outer circumferential surface of the foam body is located at an adjacent second portion of the film;
• and
• pressing the first portion of the film and the adjacent second portion of the film by the outer circumferential surface of the foam body.

A film application method of adhesively attaching a film to a target object comprising a recess portion or a protruding portion by using a roller and a local pressing tool for pressing a root portion of the recess portion or the protruding portion,

• the 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 an entire circumference of the core portion and comprising an outer circumferential surface being flat;
• an operation portion configured to operate the foam body;
• and
• a fixing portion configured to fix the support portion and the operation portion, wherein the fixing portion comprises a weight enabling adjustment of a load for pressing the foam body
• at least one end portion of the outer circumferential surface bending toward a direction of the central axis,
• the film application method comprising:
• adhesively attaching the film to the target object except for the root portion by using the roller;
• and
• adhesively attaching the film to the root portion by using the local pressing tool.