Hole sewing machine
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsHiroshi Miyazaki, Masahisa Kato
Life of this patent
Estimating the term…
Abstract
In a hole sewing machine of the type adapted to stitch a buttonhole or the like, an X-Y table member is operatively connected to a work support member upon which the material to be stitched is placed, motors are provided for driving the table along orthogonal X-Y axes and a further motor is provided for synchronously rotating the needle bar and looper stand of the sewing machine about the axis of the needle bar. A control device is provided for supply drive signals to the various motors in accordance with the predetermined buttonhole sewing program so that the buttonhole is stitched in accordance with the desired pattern by merely selecting a specific buttonhole sewing program.
Claims12
A hole sewing machine comprising a sewing mechanism including a needle bar having a sewing needle coupled thereto, and a looper stand, support means for supporting a fabric workpiece mounted for movement along an X-axis and a Y-axis orthogonal to each other, an X-axis direction feed motor for moving said support means in the direction of said X-axis, a Y-axis direction feed motor for moving said support means in the direction of said Y-axis, rotating means for sychonronously rotating said needle bar and said looper stand and control means for supplying driving signals to said rotating means according to a predetermined hole sewing program.
A hole sewing machine comprising stitching means including a needle bar having a sewing needle coupled thereto and a looper stand, table means mounted for movement along an X-axis and a Y-axis orthogonal to each other, an X-axis direction feed motor for moving said support means in the direction of said X-axis, a Y-axis direction feed motor for moving said support means in the direction of said Y-axis, rotating means for sychronously rotating said needle bar and said looper stand and control means for applying drive signals to said rotating means, said X-axis direction feed motor and said Y-axis direction feed motor in accordance with the predetermined hole sewing program.
Dependencies are inferred from the claim text.