Patent ID: 7879277

Claim:
A method for forming a hollow molding having a thin film on an inner surface, the method comprising: molding a first semi-hollow body using a stationary mold and a slidable movable mold, wherein the slidable movable mold is in a first position; sliding the slidable movable mold to a second position while leaving the first semi-hollow body in the slidable movable mold; and molding a first semi-hollow cover and a second semi-hollow body in the second position using the stationary mold and the slidable movable mold; depositing the thin film on an inner surface of the first semi-hollow body while the slidable movable mold is in the second position; and sliding the slidable movable mold to a third position, where an opening of the first semi-hollow body registers with an opening of the first semi-hollow cover while the first semi-hollow body and the first semi-hollow cover are left in the slidable movable mold and the stationary mold, respectively; mold clamping the slidable movable mold to the stationary mold while the slidable movable mold is in the third position; and injecting a molten resin to joint portions of the first semi-hollow body and the first semi-hollow cover so as to integrate the first semi-hollow body and the first semi-hollow cover.