Method for manufacturing a flexible air duct
AssigneeAugusta
InventorYves-Marie LALLE
Life of this patent
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Abstract
A method for manufacturing a flexible air duct includes: winding a strip made from fabric over a turn around the core with a non-zero angle of incidence “α”, considering the direction of travel of the strip relative to a plane perpendicular to the axis of the core, so that one edge of the strip is covered by overlapping of the other edge of the part of the strip approaching the core, rotating the strip around the core, continuously joining the two overlapping edges together by means of a sewing head or a welding head or a gluing head, provided with means for translating the fabric, characterized in that it consists of using the means for translating the fabric in order to continuously wind the strip around the core.
Claims10
A method for manufacturing a flexible air duct designed for use in the field of industrial ventilation, said method implementing a cylindrical tubular core and comprising:
- winding a strip made from fabric over a turn around the core with a non-zero angle of incidence “α”, considering the direction of travel of the strip relative to a plane perpendicular to the axis of the core, so that one edge of the strip is covered by overlapping of the other edge of the part of the strip approaching the core,
- rotating said strip around the core, and
- continuously joining the two overlapping edges together by means of a sewing head or a welding head or a gluing head, provided with means for translating the fabric, wherein it consists of using the means for translating the fabric in order to continuously wind the strip around the core.
Dependencies are inferred from the claim text.