FEED ARM TYPE SEWING MACHINE

摘要

PROBLEM TO BE SOLVED: To provide a feed arm type sewing machine capable of preventing an oil leakage from a head while reducing costs by simplifying an outer wall structure of the head.

SOLUTION: A feed arm type sewing machine comprises a guide shaft for a spreader 21a, a guide shaft for a movable knife 21b and a presser shaft 15 and these three shafts are configured to be a triple-axis structure in which the guide shaft for the spreader 21a is inserted into the presser shaft 15 and the guide shaft for the movable knife 21b is inserted into the guide shaft for the spreader 21a from its outer circumference. A thread feeding device 14 is supported by a second boss 2c of a swing shaft 6 and fixed to a projecting end 6a that is projected from an outer wall of a bed 2.

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