Button holer sewing machine

Details Button holer sewing machine Button holer sewing machine

1997-08-28

1999-02-23

Nerbun, Peter

Sewing

Special machines

Buttonhole

112 68, 112 73, 112447, D05B 308, D05B 2100

Patent

active

058733140

ABSTRACT:
A sewing machine is provided with an X-correction value input unit that corrects, in an X-direction, seam position with respect to a position of an opening, e.g., a circular hole, formed in a workpiece cloth by an opening forming mechanism, and an X-direction seam data correction unit that corrects seam data based on an X correction value inputted from the X-correction value input unit. The sewing machine can also be provided with an Y-correction input unit and a Y-direction seam data correction unit for correcting Y-direction information in the seam data. With the seam data corrected by the seam data correction units, a seam position can be corrected with respect to the position of the opening formed by the opening forming mechanism. The sewing machine is also provided with a stitch width correction input unit that is used for inputting a correction value of a stitch width of the seam, and a seam data correction unit that corrects the seam data based on the stitch width of the seam input by the stitch width correction input unit. The stitch width changes when the seam is stitched with the corrected seam data.

REFERENCES:
patent: 5125349 (1992-06-01), Koie et al.
patent: 5222440 (1993-06-01), Koie et al.

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