Cylinder-bed type sewing machine
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United States of America Patent
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-
Oct 17, 1995
Grant Date -
N/A
app pub date -
Aug 1, 1994
filing date -
Aug 11, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In the cylinder-bed type sewing machine of the invention, a cylinder unit is provided. A feed base support, a feed base, and a feed dog which are disposed in the cylinder unit are reciprocally rotated in vertical and lengthwise directions in accordance with movements of a feed lifting rock shaft and a feed lengthwise shaft. The vertical and lengthwise reciprocal movements of the feed base are synthesized so that the feed dog is moved along an arcuate feeding locus. According to the cylinder-bed type sewing machine of the present invention, the peripheral length of the cylinder unit for holding a tubular sewing product which is fitted onto the cylinder unit, and the distance between a throat plate and the left end of the cylinder unit can be reduced as much as possible, and the feed dog can be moved along the arcuate locus. Therefore, a predetermined feeding operation on the sewing product can be conducted surely and smoothly.
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