Patent ID: 7922949

Claim:
A process for the production of hollow bodies of thermoplastic material for the production of fuel tanks of plastic material, comprising the steps of: providing one or more preforms in web or band form of plasticized plastic material; providing a multi-part tool forming a mould cavity having an internal contour; shaping said one or more preforms in said multi-part tool by expansion of said one or more preforms thereby causing said preforms to bear against the internal contour of the mould cavity to form two mutually complementary intermediate products in the form of shell portions having respective inside walls which face towards each other in the tool; providing at least one respective built-in fitment component capable of being secured to the respective insides of the shell portions, wherein at least some of said built-in fitment components are respectively of mutually complementary configuration; securing said at least one respective built-in fitment component to said respective inside wall of at least one of said shell portions; assembling said shell portions in such a manner that said mutually complementary built-in fitment components engage into each other and/or come into operative connecting relationship with each other such that said mutually complementary built-in fitment components are joined to provide an assembled component or to provide a functional unit, wherein holding elements are used as said mutually complementary built-in fitment components, which holding elements respectively receive couplings of electric lines or fluid lines, wherein a holding element and a line portion with coupling are placed on said inside wall of said shell portions in such a way that the couplings engage into each other when said shell portions are joined together.