Draw-off device with adjustable tension for circular knitting machine
Patent 5457967 Issued on October 17, 1995. Estimated Expiration Date: 
March 25, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
March 25, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 205414 2171741 2649811 2760362 2979587 2986353 3070319 3136169 3504560 Self-energized controllable belt tensioner Patent #: 5176581 InventorAssigneeApplicationNo. 217676 filed on 03/25/1994US Classes:66/151, Winding, from rotary needle bank66/153, From rotary needle bank242/415, Transmission control474/111Tension adjuster has surface in sliding contact with beltExaminersPrimary: Calvert, John J.Attorney, Agent or FirmForeign Patent References
International ClassD04B 015/88Foreign Application Priority Data1993-03-30 DEAbstractA draw-off device for taking down flexible goods with a steplessly adjustable draw-off tension from a machine producing or processing the goods, the draw-off device has at least one draw-off roller, a drive source, and a V-belt transmission connecting the draw-off roller and the drive source for driving the draw-off roller, the transmission comprising a V-belt pulley having two conical flanges, at least one of the flanges being mounted so as to be axially movable so as to alter an effective diameter of the V-belt pulley, the at least one movable flange being biased by spring force in direction of the other of the flanges, a V-shaped belt at least partially wrapping the V-belt pulley, at least one tensioning roller for and at least partially wrapped by the V-belt, a unit for adjusting the tensioning roller in a preselected position in order to adjust the take-down tension to a preselected value by a respective displacement of the at least one movable flange, and a locking unit for holding the tensioning roller in the preselected position.Field of SearchTake-upsWinding, from rotary needle bank Continuous From rotary needle bank Transmission control Load responsive Tension adjuster has surface in sliding contact with belt Pulley shifter Pulley on shaft of adjustably mounted drive motor Guide roll mounted for movement of its axis along rectilineal path to tension belt | |
