Sewing unit with a feed device
AssigneeG.M. Pfaff Aktiengesellschaft
InventorAxel Zinssmeister
Life of this patent
Estimating the term…
Abstract
A sewing unit with a feed device for a fabric holder with support elements that can be moved along a guide and are connected to a drive each for feed means acting on the fabric holder. A fabric being sewn can be transported to or removed from the sewing machine by the feed device over any desired distance and the feed movement of the fabric being sewn can be brought about without problems during passage through the stitch formation site of the sewing machine even at very high stitch frequency because of the favorable dynamic properties. The guides are arranged in the same direction, and the support elements can be driven synchronously for a movement of the fabric holder in parallel to the guides, and at mutually different velocities for a movement in a direction deviating from the direction.
Claims16
A sewing unit and feed device, comprising:
- a sewing machine;
- a fabric holder;
- feed means connected to said fabric holder for acting on said fabric holder;
- support elements connected to said feed means;
- guide means providing a guide path extending in the same direction for each of said support elements, for guiding said support elements;
- and
- drive means including a drive connected to each support element for independently moving each support element back and forth along said guide path for moving said support elements synchronously for moving said fabric holder in parallel to said guide path and for moving said support elements at different velocities for moving said fabric holder in a direction different from a direction parallel to said guide path.
A sewing unit and feed device, comprising:
- a sewing machine;
- a sewing unit support plate for fabric to be sewn;
- a fabric holder;
- feed means connected to said fabric holder for acting on said fabric holder;
- support elements connected to said feed means;
- guide means providing a guide path extending in the same direction for each of said support elements, for guiding said support elements;
- and
- drive means including a stationary drive connected to each support element for independently moving each support element back and forth along said guide path for moving said support elements synchronously for moving said fabric holder in parallel to said guide path and for moving said support elements at different velocities for moving said fabric holder in a direction different from a direction parallel to said guide path.
A sewing unit and feed device, comprising:
- a sewing machine;
- a sewing unit support plate for fabric to be sewn;
- a fabric holder;
- feed means connected to said fabric holder for acting on said fabric holder;
- support elements connected to said feed means;
- guide means providing a guide path with two guide directions for guiding said support elements along said guide path;
- a guide means support, said guide means support being pivotably connected to said sewing machine support plate;
- and
- drive means including a drive connected to each support element for independently moving each support element back and forth along said guide path for moving said support elements synchronously for moving said fabric holder in parallel to said guide path and for moving said support elements at different velocities for moving said fabric holder in a direction different from a direction parallel to said guide path.
Dependencies are inferred from the claim text.