Mending attachment for a sewing machine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 6, 1984
Grant Date -
N/A
app pub date -
Aug 25, 1983
filing date -
Aug 25, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A presser attachment device for implementing needle feed in which a presser foot is elevated when a sewing needle is in engagement with work material to facilitate lateral shift thereof by the sewing needle. The presser foot is supported on one end of a substantially centrally pivoted presser foot carrier lever, the other end of which is formed with a gear segment. A pinion and ratchet combination is supported on one end of a pinion carrier lever, the other end of which is carried on the presser foot carrier lever pivot and has a pinion portion thereof in engagement with the gear segment. A combined cam and pawl is provided in which a pawl portion is in engagement with a ratchet portion of the combined pinion and ratchet when the sewing needle extends through the work material so as to lock the pinion against further rotation, depress the pinion and rotate the presser foot carrier lever to elevate the presser foot out of contact with the work material. When the sewing needle is not in engagement with the work material, the pinion is free to rotate to accommodate to the thickness of the work material beneath the presser foot.
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