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(A) Generating mechanism of needle bar, thread take-up lever and zigzag movements
(B341 ⋅ B349 ⋅ B351 ⋅ B352)
Thread takeup lever
Eccentric
counter weight
Upper shaft
Worm gear
Pulley
Needle bar
crank rod
Pattern cam
Needle bar
clamp
Needle bar
Needle bar
supporter
Zigzag connecting
rod assembly
Z finger
Needle
-5-
Selecting cam