Button hole sewing machine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 15, 1998
Grant Date -
N/A
app pub date -
Jul 23, 1996
filing date -
Jul 24, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A buttonhole sewing machine includes a holding mechanism attached to a holder arm which reciprocates in a direction perpendicular to an amplitude direction of a needle. The holding mechanism includes a workpiece holder plate and constitutes a parallelogram linkage. The holding mechanism maintains a parallelogram shape even when the holder plate slants on a fold of the workpiece, and securely holds the workpiece. This buttonhole sewing machine also includes a cutting mechanism which cuts thread and braid in a short manner even when the holder plate slants. The cutting mechanism has a rotary cutter and a fixed cutter, and the fixed cutter is fixed on the holder plate while inclined from a proximal portion to a distal portion. A wire member is connected to the mobile cutter to facilitate the rotation of the rotary cutter even when the holder plate slants.
First Claim
Family
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Cited Art Landscape
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