Pre-processing method for adhering rubber layer to inner and outer surfaces of cylindrical object-of-adherence

A method of forming an adhesive layer for bonding an unvulcanized rubber layer onto an outside curved surface of a bonding object,

• the method comprising the steps of:
• bonding, onto the outside curved surface of the bonding object, an undercoating adhesive layer of an adhesion sheet including a top coating adhesive layer formed on a film and the undercoating adhesive layer formed on the top coating adhesive layer;
• heating the bonding object having bonded thereonto the adhesion sheet;
• and
• uniformly pressing the adhesion sheet through pressing of the film by inserting the bonding object into a hollow portion of an elastic pressing member having the hollow portion and compressing the elastic pressing member in an axis direction to deform the elastic pressing member in a radial direction.

A method of forming an adhesive layer for bonding an unvulcanized rubber layer onto each of an inner surface of a hollow portion of a bonding object having the hollow portion and an outside curved surface of the bonding object, on the inner surface of the hollow portion,

• the method comprising the steps of:
• bonding, onto each of the inner surface of the hollow portion of the bonding object and the outside curved surface, an undercoating adhesive layer of an adhesion sheet including a top coating adhesive layer formed on a film and the undercoating adhesive layer formed on the top coating adhesive layer;
• heating the bonding object having bonded thereonto the adhesion sheet;
• and
• pressing the adhesion sheet against the inner surface of the hollow portion of the bonding object through pressing of the film by inserting a first elastic pressing member into the hollow portion of the first elastic pressing member and compressing the elastic pressing member in an axis direction to deform the elastic pressing member in a radial direction, and
• pressing the adhesion sheet against the outside curved surface of the bonding object through pressing of the film by inserting the bonding object into a hollow portion of a second elastic pressing member having the hollow portion and compressing the second elastic pressing member in the axis direction to deform the second elastic pressing member in the radial direction.