Abstract: A multi-insert cap blow-molding method for molding a hollow plastic product which is integrally formed with elongate fastening members. Each fastening member is seated in a groove defined in a lower mold. Each fastening member is composed of an elongate outer insert cap and an inner insert cap which is positioned in the outer insert cap to be separated from a bottom surface of the outer insert cap and to divide a space defined in the outer insert cap into an upper space and a lower space. A hollow parison is positioned between an upper mold and the lower mold. Hot air is blown into the parison with the upper and lower molds enclosing the parison to mold the parison and integrally fuse a portion of the parison to an inner surface of the fastening member. Then, the resultant product which is cooled, discharged and finished.

Abstract: A spoiler for a vehicle has an integral stop lamp cover. The stop lamp cover comprises a cover body configured to be open at an upper end thereof, and having a stop lamp insertion opening, a stop lamp receiving space, and a flange part formed on an upper end of the cover body; and an upper plate coupled to the cover body, having a size capable of covering the stop lamp receiving space, and defining the stop lamp receiving space and a parison fusing section to which a parison for forming a spoiler body is fused. The stop lamp cover is inserted into a mold when implementing the blow molding process, the flange part is fused to the outer surface of the spoiler body to be integrated with the material of the spoiler without requiring the use of a separate coupling means, and the parison is fused to the parison fusing section.

Abstract: A multi-insert cap blow-molding method for molding a hollow plastic product which is integrally formed with elongate fastening members. Each fastening member is seated in a groove defined in a lower mold. Each fastening member is composed of an elongate outer insert cap and an inner insert cap which is positioned in the outer insert cap to be separated from a bottom surface of the outer insert cap and to divide a space defined in the outer insert cap into an upper space and a lower space. A hollow parison is positioned between an upper mold and the lower mold. Hot air is blown into the parison with the upper and lower molds enclosing the parison to mold the parison and integrally fuse a portion of the parison to an inner surface of the fastening member. Then, the resultant product which is cooled, discharged and finished.