Vertical axis rotary loop taker

Details Vertical axis rotary loop taker Vertical axis rotary loop taker

1982-12-27

1984-02-21

Reynolds, Wm. Carter

Sewing

Elements

Revolving hooks

D05B 5708, D05B 5726

Patent

active

044322933

ABSTRACT:
A non-rotatable, disc-like bobbin carrier is nested in a cup-shaped, vertical axis, rotary loop taker that slidably supports the bobbin carrier at its periphery on an annularly extending, discontinuous lip constituting a circular race slightly offset eccentrically from the loop taker axis of rotation. As the loop taker rotates, the eccentrically positioned bobbin carrier jogs back and forth in reciprocating fashion against one and then the other of a pair of diametrically opposed fixed stops that cooperate to preclude rotation of the bobbin carrier. The movement of the bobbin carrier away from and against each stop is synchronized with movement of a thread loop about the bobbin carrier to permit free passage of the loop between the fixed stops and the moving bobbin carrier. The lower end of an associated needle bar guide is pivotally retained for arcuate movement at the distal end of a link member having its fixed end located on the vertical axis of the loop taker to maintain the stitching needle a fixed radial distance from the adjacent arcuate section of the revolving loop taker hook for optimum stitching during zig-zag movements of the related needle bar.

REFERENCES:
patent: 1691242 (1928-11-01), Greenwood
patent: 1989594 (1935-01-01), Gonyk
patent: 2148385 (1939-02-01), Waterman
patent: 2655885 (1953-10-01), Kostro
patent: 2862468 (1958-12-01), Johnson
patent: 4108095 (1978-08-01), Kohara
patent: 4292906 (1981-10-01), Johnson

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