Back to results
US 4,928,610 AGranted
Sewing machine pneumatic decurler
AssigneeJuki Corporation
InventorHiromi Akutsu
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeJuki Corporation
InventorHiromi Akutsu
Estimating the term…
An apparatus for eliminating curls at the cut ends of fabric workpieces provides air tubes directed toward the curls so that air flow flattens the curls. The apparatus includes a device for generating air flow; a first tube connected to the device for generating air flow and having one end fixed to the presser foot of a sewing machine; a second tube connected to the device for generating air flow and having one end situated under the throat plate of a sewing machine; and a valve positioned between the device for generating air flow and the tubes. The first tube includes an opening facing the curls and a contact portion extending horizontally and overlapping the curled edge of the workpiece for contacting the curled edge when the presser foot is moved downwardly. The second tube includes an opening facing the curls. The pattern of air flow is switchable to one or both of the tubes depending on the configuration of the curls; that is, whether the fabric is outwardly curled or inwardly curled.
An apparatus for eliminating curls at the edge of a first fabric workpiece before sewing the first fabric workpiece to a second fabric workpiece along the curled edge on a sewing device having a vertically movable presser foot and a throat plate, the curl eliminating apparatus comprising:
In a sewing machine, an apparatus for eliminating curl at an edge of a fabric workpiece comprising:
In a sewing machine, an apparatus for eliminating curl at an edge of a fabric workpiece comprising:
Dependencies are inferred from the claim text.