Thread exchanger device for sewing machine

Details Thread exchanger device for sewing machine Thread exchanger device for sewing machine

1996-09-18

1998-07-07

Izaguirre, Ismael

Sewing

Stitch forming

Shuttle type

D05B 5904

Patent

active

057752435

ABSTRACT:
In a thread exchanger device for a sewing machine, a rotary cassette has a plurality of bobbin casings along a circumferential direction thereof. A cassette driver is provided to rotationally drive the rotary cassette to select one of the plurality of bobbin casings so as to move it to an exahangeable position. A chuck is provided to take the bobbin casing off the rotary cassette on the one hand, and attaching to the rotary cassette on the other hand. A chuck driver is provided to alternately move the chuck toward a rotary bobbin frame, and move it toward the exchangeable position.

REFERENCES:
patent: 3744442 (1973-07-01), Michaels et al.
patent: 4186677 (1980-02-01), Sacchetti
patent: 5143004 (1992-09-01), Mardix et al.
patent: 5584257 (1996-12-01), Nakamura et al.
Patent Abstracts of Japan, vol. 96, No. 008 & JP 08 196766 A (Kinoshita Seimitsu Kogyo KK; Kato Tadashi), Aug. 6, 1996, *Abstract.
Patent Abstracts of Japan, vol. 95, No. 010 & JP 07 275552 A (Tadashi Kato; Others: 01), Oct. 24, 1995, *Abstract.

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