Adjustable needle guard

Details Adjustable needle guard Adjustable needle guard

1977-03-22

1978-06-13

Schroeder, Werner H.

Sewing

Elements

Revolving hooks

D05B 5506

Patent

active

040942619

ABSTRACT:
This disclosure relates to needle guards for rotary loop takers in sewing machines and has its purpose prevention of interference between the needle and the loop seizing beak of the rotary loop taker during the sewing operation. A needle guard is provided which takes the form of a rib member formed in the bottom wall of the rotary loop taker which rib member is spaced from the vertical side wall of the cup-shaped rotary loop taker. The rib member is relatively thin and may be said to be resilient. Means are provided for biasing the rib member toward and away from the vertical side wall of the rotary loop taker in order that the rib member may be adjusted relative to the reciprocating path of the needle so that the needle will be deflected away from the loop seizing beak of the rotary loop taker upon penetration of the fabric by said needle and thereby prevent a scoring of the loop seizing beak or a breakage of the needle.

REFERENCES:
patent: 2883953 (1959-04-01), Johnson
patent: 3023721 (1962-03-01), Johnson
patent: 3215105 (1965-11-01), Kuhar
patent: 3232258 (1966-02-01), Gegauf, Jr.
patent: 3374755 (1968-03-01), Chaplin, Jr.
patent: 3462893 (1969-08-01), Kaiser
patent: 3762350 (1973-10-01), Starnes
patent: 3955519 (1976-05-01), Weisz
patent: 3977800 (1976-08-01), Cassel

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