To provide a double chain stitch sewing machine capable of adopting a lever type feed amount adjusting mechanism capable of condense stitches, reverse feed of a fabric and switching of the presence/absence of shirring in shirring sewing with excellent operability without enlarging a sewing machine arm or a sewing machine bed even when using a vertical swing looper for multiple needles.
A third housing space S3 is formed side by side on the end side of the first housing space S1 of the sewing machine bed 2, a first feed mechanism 16 for transmitting the rotation of a sewing machine main shaft 8 to a feed shaft 9 is housed and arranged inside the third housing space S3, and the lever type feed amount adjusting mechanism 39 for adjusting the rotation angle range of the feed shaft 9 by a lever operation over the inside and outside of a bed end wall 2b is mounted.
MATSUZAKI HIROSHI
HOSOKAWA MASATO
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