Needle guide

Details Needle guide Needle guide

1981-07-06

1984-01-31

Schroeder, Werner H.

Sewing

Elements

Needles

D05B 5506

Patent

active

044283148

ABSTRACT:
A needle guide for a buttonhole sewing machine provided with a pair of reciprocating loopers that in cooperation with a vertically reciprocating needle produce chain stitches for forming a buttonhole on a fabric. The needle guide include a pair of inner and outer surfaces defining a U-shaped member which is carried below the path of the reciprocating needle. A downwardly depending guide surface extends into the U-shaped member between the inner and outer surfaces. The outer surface is positioned on one side of the needle and the depending guide surface is positioned on the opposite side of the needle for restricting deflection of the needle from its desired path. The U-shaped member is positioned between the pair of loopers for permitting the loopers to reciprocate in and out of the U-shaped member from opposed sides during the buttonhole stitch forming operation.

REFERENCES:
patent: 712852 (1902-11-01), Rontke
patent: 1387619 (1921-08-01), Rosenthal
patent: 3313259 (1967-04-01), Daniel et al.
patent: 3872810 (1975-03-01), Johnson

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