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US 6,247,504 B1Granted
Device for tensioning and drawing back warp yarns coming from a creel to a weaving machine
AssigneeN.V. Michel Van de Wiele
InventorErik Vermeulen
Life of this patent
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AssigneeN.V. Michel Van de Wiele
InventorErik Vermeulen
Estimating the term…
A device for tensioning and drawing back warp yarns brought from a creel to a weaving machine. The tensioning and drawing back device keeps tension and if necessary draws back warp yarns (2) led from a bobbin (1) to a weaving machine. A supporting body (6) has a curved friction surface to support the warp yarn (2) between the bobbin (1) and the weaving machine. A first (7) and a second tensioning element (8) exert a tensile force on the warp yarn (2), respectively, in front of and behind the curved friction surface (6). The tensioning elements (7), (8) can be suspended from the warp yarn (2) and for example only through their own weight may exert this tensile force. This device easily draws back the warp yarn (2) out of the weaving area. The replacement of a bobbin (1) occurs without interruption or disturbance of the weaving process.
Apparatus for keeping tension and drawing back warp yarns comprising a bobbin, a weaving machine, at least one warp yarn leading from the bobbin to the weaving machine, a supporting body, a curved friction surface on the body for supporting the warp yarn between the bobbin and the weaving machine, first and second tensioning elements for exerting a tensile force on the warp yarn, the tensile force being exerted on portions of the warp yarn on opposite sides of the curved friction surface.
Dependencies are inferred from the claim text.