Patent ID: 8361576

Claim:
A hollow molding having a film on its inner surface formed by: forming a hollow molding having a film on its inner surface, comprising: a primary molding comprising injection-molding first and second semi-hollow bodies by using a stationary mold and a movable mold made movable with respect to the stationary mold so that an opening of each of the first and second semi-hollow bodies has an abutment portion; a depositing comprising: opening the molds such that one of the first and second semi-hollow bodies is left on the side of the stationary mold whereas an other of the first and second semi-hollow bodies is left on the movable mold; and forming a film on the inner surface of at least one of the first and second semi-hollow bodies formed by the primary molding; and a secondary molding comprising: abutting the openings of the first and second semi-hollow bodies deposited in a state where they are left in the molds; and injecting a molten resin to the abutment portions so as to integrate the first and second semi-hollow bodies and form the hollow body, wherein the forming a film in the depositing is carried out in the molds by covering the at least one of the first and second semi-hollow bodies left in the molds with a depositing chamber including a deposition element comprising a target electrode, a substrate electrode and a vacuum suction pipe, and wherein said hollow molding further comprises a jointing cavity formed by half-grooves disposed on the outer perimeter of the abutment portions of each of the first and second semi-hollow bodies, wherein the ends of the abutment portions abut each other thereby forming the jointing cavity, and wherein the molten resin flows into the jointing cavity to integrate the first and second semi-hollow bodies.