Bobbin basket with thread grooving protection means

Details Bobbin basket with thread grooving protection means Bobbin basket with thread grooving protection means

1994-11-18

1997-02-04

Izaguirre, Ismael

Sewing

Elements

Revolving hooks

D05B 5726

Patent

active

055987990

ABSTRACT:
A bobbin basket for use with a rotary loop taker in a lock stitch sewing machine. The bobbin basket has an integrally formed bearing rib formed of synthetic resin affixed to a metallic cylindrical side wall. Thread grooving protection members are inserted into insert housings at specified areas where the needle thread loop slides against the thread pick up and thread cast off notches. The insert housings are self contained on the integrally formed bearing rib.

REFERENCES:
patent: 1504241 (1924-08-01), Hohmann
patent: 3347193 (1967-10-01), Perri
patent: 4393798 (1983-07-01), Cheng
patent: 4577572 (1986-03-01), Hirose
patent: 4676178 (1987-06-01), Hirose
patent: 4858543 (1989-08-01), Badillo
patent: 5076182 (1991-12-01), Hirose et al.
patent: 5188046 (1993-02-01), Badillo
patent: 5413058 (1995-05-01), Hirose et al.

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