| 摘要 |
PURPOSE:To manufacture a vessel having a minimum part smaller than the smallest diameter of a parison, by forming the minimum diameter part by drawing a part of the parison molded through injection, into which air is blown by setting up the same within a mold. CONSTITUTION:An end part and the other part of a parison 1 are held by a stationary clamper 2 and movable clamper 3 and an intermediate part is made into a minimum diameter part 1' of a diameter d2 smaller d1 of the parison obtained at the time of injection by drawing the prison 1 by moving the movable clamper 3. Then the drawn parison 1 is set up within a mold 4 in a predetermined form, a vessel 5 is manufactured through blowing by bonding the parison 1 within the mold 4 with pressure by blowing air within the mold 4 and the vessel 5 having a minimum diameter part 5' is obtained by unloading through the mold 4 after that. |
