Bobbin holding structure

Details Bobbin holding structure Bobbin holding structure

1990-12-12

1992-10-06

Schroeder, Werner H.

Sewing

Elements

Revolving hooks

D05B 5726

Patent

active

051522365

ABSTRACT:
A bobbin holding member magnetically adheres within a bobbin case holder which houses a bobbin. The bobbin is securely retained in the bobbin case holder without allowing the bobbin to be removed therefrom during a sewing operation. The bobbin holding member is installed in the bobbin case holder freely detachably, and thus the bobbin easily can be replaced.

REFERENCES:
patent: 1179371 (1916-04-01), Diehl et al.
patent: 1981834 (1934-11-01), Fleckenstein
patent: 2763227 (1956-09-01), Howard
patent: 3051108 (1962-08-01), Ketterer
patent: 4235178 (1980-11-01), Ackermann
patent: 4429649 (1984-02-01), Eguchi et al.
patent: 4453479 (1984-06-01), Kawai
patent: 4676178 (1987-06-01), Hirose
patent: 4679513 (1987-07-01), Druffel

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