Sewing – Elements – Take-ups
Reexamination Certificate
2005-06-14
2005-06-14
Izaguirre, Ismael (Department: 3765)
Sewing
Elements
Take-ups
C112S220000
Reexamination Certificate
active
06904853
ABSTRACT:
A take-up cam phase adjustment structure of looper thread take-up apparatus of a sewing machine includes a rotary shaft rotatablly mounted in the sewing machine. A thread-guiding plate mounted on the housing for correspondingly pressing a stitching thread against the rim of the take-up cam. A transmission mechanism connected between the lower driving shaft and the rotary shaft. The transmission mechanism includes a driven wheel rotatablly mounted on the rotary shaft. The take-up cam phase adjustment structure includes a locking member for locking the driven wheel on the rotary shaft and a turning section disposed at one end of the rotary shaft. After the second locking member is unscrewed and loosened, by means of rotating the turning section, the relative radial positions between the take-up cam and the lower driving shaft is drivingly adjustable.
REFERENCES:
patent: 1234094 (1917-07-01), Drumheller
patent: 1723195 (1929-08-01), Moffatt
patent: 4259915 (1981-04-01), Szostak
patent: 5129339 (1992-07-01), Dietl
patent: 5269118 (1993-12-01), Bullaro
patent: 5447019 (1995-09-01), Held et al.
patent: 5476086 (1995-12-01), Smith
patent: 5676052 (1997-10-01), Wegrzyn et al.
Ching Chi Machine Co., Ltd.
Izaguirre Ismael
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