A method of making a frame member, a frame member, a frame structure and use of a frame member
AssigneeVKR Holding A/S
InventorsMichael Melsen, Kristian Nitzsch Grønborg
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Abstract
The present invention relates to a method of producing a frame member for a window or a door, the method comprising the steps of providing a sheet of metal, rollforming the sheet of metal into a frame shell having a predetermined profile, introducing a foaming material into the frame shell, and arranging the frame shell in a calibration tube until the foam material has set. The sheet of metal has a thickness of 0.25 mm or less. The present invention further relates to a frame member, a frame structure and use of such frame member.
Claims17
A method of producing a frame member for a window or a door, the method comprising the steps of:
- providing a sheet of metal,
- rollforming the sheet of metal into a frame shell having a predetermined profile,
- introducing a foaming material into the frame shell, characterized in that
- the sheet of metal has a thickness of 0.25 mm or less and
- arranging the frame shell in a calibration tube until the foam material has set.
Dependencies are inferred from the claim text.