| 摘要 |
PURPOSE:To mold hollow moldings in thermal plastic resin, which inside is provided with an insert, by pre-blowing thermal plastic resin melted parison, by bonding insert parts on an inwall surface of parison and by blowing in air. CONSTITUTION:A metal mold 4 is closed while insert parts 3 held by means of a lever body 2 remain as they are located at the inside of thermal plastic melted parison 1 extruded or injected from a die, and the parison is pre-blown. Just after pre-blowing parison, the insert parts 3 grasped by means of the lever body 2 are moved in the lateral direction by means of a functioning mechanism mounted into the lever body 2 and bonded to an inwall surface of the parison, and air is blown in. |
