Horizontal rotating hook for sewing machine

Details Horizontal rotating hook for sewing machine Horizontal rotating hook for sewing machine

1993-08-05

1995-07-18

Crowder, Clifford D.

Sewing

Stitch forming

Revolving-hook type

112231, D05B 5714

Patent

active

054331595

ABSTRACT:
A horizontal rotating hook for a sewing machine which has a structure so that an opener mechanism, which is adapted to wear and provide noise, is not required. The opener structure is avoided by using a needle thread fastener that is located adjacent to a rotating hook bobbin case holder position bracket in a rotating hook bobbin case holder for fastening needle thread temporarily. Thus, when the loop of the needle thread captured by the hook point of a rotating hook goes through into the rotating hook bobbin case holder, the rotating hook bobbin case holder is moved in a direction opposite to the rotation direction of the rotating hook (reversed) by the tension of the thread.

REFERENCES:
Mitsubishi Industrial Sewing Machine Instruction Manual for Model LT2-230.250 for Double-Need Lockstitch Automatic Undertrimmer, Variable Speed, T016A, Mitsubishi Electric, pub. Feb. 1983.
Mitsubishi Industrial Sewing Machine Instruction Manual for Model LU2-4410.4430 for Single-Needle, Double-Need Lockstitch Compound-Feed Automatic Undertrimmer Variable Speed Control, Mitsubishi Electric, pub. Jan. 1984.

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