Needle section device having rocker levers in a circular machine

Details Needle section device having rocker levers in a circular machine Needle section device having rocker levers in a circular machine

1990-05-04

1992-03-17

Schroeder, Werner H.

Textiles: knitting

Independent-needle machines

Circular

D04B 1578

Patent

active

050957210

ABSTRACT:
A device for selecting needles in a circular knitting machine by means of rocker levers. The rocker levers are pivoted on central horizontal fixed pivots having an end in the form of a one-piece metal structure. The metal structure comprises a sleeve which engages the horizontal pivot. The pivot engages along a gradual profile with butts of jacks. The butts of the jacks are inactivated and their opposite end engages with a mobile rocker arm of an electromagnetic actuator. The rocker arm is magnetizable by an electric current which is fed to a fixed electrical winding surrounding the arm. Depending on the direction of the current flowing through the winding, the rocker arm positions itself in one of two positions. The position is determined by fixed permanent magnets of opposite sign which are positioned on opposite sides of the mobile end of the magnetizable rocker arm.

REFERENCES:
patent: 3530686 (1970-09-01), Martinetz
patent: 4856300 (1989-08-01), Lonati
patent: 4972686 (1990-11-01), Maruyama et al.

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