Method and apparatus for producing a corrugated tube
AssigneeDr. Ing. h.c. F. Porsche Aktiengesellschaft
InventorSven Auch
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Abstract
A method is provided for producing a corrugated tube that has, at least in sections, first outer wall regions with a first external diameter and second outer wall regions with a second external diameter that alternate in a wave-shaped manner. The first external diameter is greater than the second external diameter. The corrugated tube is produced by a plastic vacuum/blow molding process in a plastic vacuum/blow mold with a corrugator (1). One or more openings are made in at least some of the first outer wall regions. The openings are made in at least some of the first outer wall regions of the corrugated tube during the plastic vacuum/blow molding process within the corrugator (1).
Claims8
A method for producing a corrugated tube that has first outer wall regions with a first external diameter and second outer wall regions with a second external diameter, the first and second outer wall regions alternating in a wave-shaped manner, the first external diameter being greater than the second external diameter, the corrugated tube being produced by a plastic vacuum/blow molding process in a plastic vacuum/blow mold with a corrugator, and one or more openings being made in at least some of the first outer wall regions, the method comprising forming the openings in at least some of the first outer wall regions of the corrugated tube during the plastic vacuum/blow molding process within the corrugator.
An apparatus for producing a corrugated tube that has first outer wall regions with a first external diameter and second outer wall regions with a second external diameter, the first external diameter being greater than the second external diameter, and the first and second external diameters alternating in a wave-shaped manner, the apparatus being configured to produce the corrugated tube by a plastic vacuum/blow molding process and having a corrugator for shaping the corrugated tube, and the apparatus having means for producing one or more openings in at least some of the first outer wall regions, wherein the means for producing one or more openings are configured to make the openings in at least some of the first outer wall regions of the corrugated tube during the plastic vacuum/blow molding process within the corrugator.
Dependencies are inferred from the claim text.