Workpiece controlling device for a sewing machine
AssigneeUnion Special Corporation
InventorGunter Rohr
Life of this patent
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Abstract
A workpiece controlling device for a sewing machine comprising, a workpiece feed mechanism which feeds material in a substantially straight line, an alignment device disposed immediately in advance of the point of stitch formation in the region of a needle plate, a device for moving the alignment device transversely relative to the direction of material feed in the sewing machine, with the alignment device acting on the workpiece in synchronism with the stitch formation, and a device for controlling the transverse motion of the alignment device.
Claims24
A workpiece controlling device for a sewing machine having a workpiece feed mechanism which feeds material in a substantially straight line, in which an alignment means of an alignment member can be moved transversely relative to the direction of material feed in the sewing machine for automatic, controlled alignment of workpieces with the point of stitch formation, the alignment means of the alignment member is disposed immediately in advance of the point of stitch formation in the region of a needle plate and acts on the workpiece in synchronism with the stitch formation, and a control command device controls the transverse motion of the alignment means, in which the alignment means of the alignment member is a corrector which is driven in the same direction of feed as the feed mechanism.
A workpiece controlling device for a sewing machine, comprising:
- a workpiece feed mechanism which feeds material in a substantially straight line;
- alignment means disposed immediately in advance of the point of stitch formation in the region of a needle plate;
- means for moving the alignment means transversely relative to the direction of material feed in the sewing machine, with the alignment means acting on the workpiece in synchronism with the stitch formation;
- and
- means for controlling the transverse motion of the alignment means, wherein the alignment means comprises a corrector, and including means for driving the corrector in the same direction of feed as the feed mechanism.
A workpiece controlling device for a sewing machine having a workpiece feed mechanism which feeds material in a substantially straight line, in which an alignment means of an alignment member can be moved transversely relative to the direction of material feed in the sewing machine for automatic, controlled alignment of workpieces with the point of stitch formation, the alignment means of the alignment member is disposed immediately in advance of the point of stitch formation in the region of a needle plate and acts on the workpiece in synchronism with the stitch formation, and a control command device controls the transverse motion of the alignment means, in which the alignment member is disposed beneath the sewing machine needle plate and the alignment means is a corrector which projects through the sewing machine needle plate and is moved up and down against a resilient workpiece holding-down device in synchronism with stitch formation.
A workpiece controlling device for a sewing machine having a workpiece feed mechanism which feeds material in a substantially straight line, in which an alignment means of an alignment member can be moved transversely relative to the direction of materia feed in the sewing machine for automatic, controlled alignment of workpieces with the point of stitch formation, the alignment means of the alignment member is disposed immediately in advance of the point of stitch formation in the region of a needle plate and acts on the workpiece in synchronism with the stitch formation, and a control command device controls the transverse motion of the aligment means, in which the alignment means is a corrector disposed opposite a workpiece holding-down device which is moved up and down in synchronism with stitch formation.
A workpiece controlling device for a sewing machine, comprising:
- a workpiece feed mechanism which feeds material in a substantially straight line;
- alignment means disposed immediately in advance of the point of stitch formation in tthe region of a needle plate;
- means for moving the alignment means transversely relative to the direction of material feed in the sewing machine, with the alignment means acting on the workpiece in synchronism with the stitch formation;
- and
- means for controlling the transverse motion of the alignment means, wherein the alignment means comprises a corrector which projects through the needle plate, and including means for moving the corrector up and down against a resilient workpiece holding-down device in synchronism with stitch formation.
A workpiece controlling device for a sewing machine, comprising;
- a workpiece feed mechanism which feeds material in a substantially straight line;
- alignment means disposed immediately in advance of the point of stitch formation in the region of a needle plate;
- means for moving the alignment means transversely relative to the direction of material feed in the sewing machine, with the alignment means acting on the workpiece in synchronism with the stitch formation;
- and
- means for controlling the transverse motion of the alignment means, wherein the alignment means comprises a corrector disposed opposite a workpiece holding-down device, and including means for moving the corrector up and down in synchronism with stitch formation.
Dependencies are inferred from the claim text.