Rotary hook for sewing machines
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United States of America Patent
Stats
-
Oct 27, 1992
Grant Date -
N/A
app pub date -
Dec 18, 1990
filing date -
Dec 17, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A front section of a hook point member, relative to a rotating direction, of a rotating hook assembly is replaceable. The member can be replaced with a new one when a hook point is worn. Also, the replaceable member is made of a material of high hardness, such that burr-like edges will not be formed, thereby making it possible to obtain good sewing performance for a long period of time. The hook point and a claw may be formed integrally and can be replaced when the hook point and/or the claw is worn.
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