Bobbin casing assembly and sewing machine having same

Sewing – Stitch forming – Revolving-hook type

Patent

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Details

112231, D05B 5722, D05B 5714

Patent

active

057620130

ABSTRACT:
A bobbin casing assembly for a sewing machine having a driver, a main shaft, and a needle bar. The bobbin casing assembly comprises a bobbin casing and an engaging member protruding outwardly from the bobbin casing, an upper end of the engaging member being disposed below an upper surface of the driver when an angle of rotation of the main shaft is substantially in a range of 5.degree. to 35.degree., wherein the angle of rotation of the main shaft is 0.degree. when the needle bar is at a top dead point.

REFERENCES:
patent: 3921551 (1975-11-01), Gustmann et al.
patent: 4142475 (1979-03-01), Zocher
patent: 5492072 (1996-02-01), Yamashita

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