Button sewing machine
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United States of America Patent
Stats
-
Dec 15, 1987
Grant Date -
N/A
app pub date -
May 29, 1987
filing date -
May 30, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A button sewing machine allows simultaneous sewing of both a stay button and a surface button to a workpiece and conducts button-neck-wrapping by inclining both buttons with a workpiece. A needle is arranged to travel between an upper needle bar spindle and a lower needle bar spindle, being received by each spindle alternately per each needle stroke, such that buttons are sewn in a manner closely simulating 'hand' sewing. A worktable is arranged to move in both the X and Y directions in accordance with the button hole pitch distance in synchronization with the up and down motion of the needle.
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Family
International Classification(s)
Cited Art Landscape
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