• Patent Title: Method for bending a plastic tube and device for carrying out the method
  • Application No.: US17252081
    Application Date: 2019-06-11
  • Publication No.: US11345075B2
    Publication Date: 2022-05-31
  • Inventor: Stefan Heinz
  • Applicant: Joma-Polytec GmbH
  • Applicant Address: DE Bodelshausen
  • Assignee: Joma-Polytec GmbH
  • Current Assignee: Joma-Polytec GmbH
  • Current Assignee Address: DE Bodelshausen
  • Agency: Hoffmann & Baron, LLP
  • Priority: DE102018209353.9 20180612
  • International Application: PCT/EP2019/065169 WO 20190611
  • International Announcement: WO2019/238654 WO 20191219
  • Main IPC: B29C53/84
  • IPC: B29C53/84 B29C53/08
Method for bending a plastic tube and device for carrying out the method
Abstract:
Method for bending a plastic pipe including arranging a bending portion of a plastic pipe in a heating zone of a heater and performing contactless local heating of the bending portion, wherein the heater is adapted to provide a first predetermined temperature difference between a neutral zone of the bending portion and a compression zone of the bending portion and a second predetermined temperature difference between the neutral zone and the compression zone of the bending area and an expansion zone of the bending area, introducing bending forces on holding regions arranged on the plastic pipe at a distance from the bending area and/or introducing bending forces on the bending area for deforming the plastic pipe into a deformation position and cooling the plastic pipe in the deformation position.
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