Electrically controlled needle selector arrangement for knitting

Details Electrically controlled needle selector arrangement for knitting Electrically controlled needle selector arrangement for knitting

1976-04-21

1977-05-17

Rimrodt, Louis K.

Textiles: knitting

Independent-needle machines

Circular

D04B 1566, D04B 1568, D04B 1578

Patent

active

040233839

ABSTRACT:
A knitting machine has a housing on which is displaceable a support cylinder carrying an array of parallel needle holders displaceable up and down. Two armed levers are pivoted on each of the holders and each have a forked arm formed with an actuating foot and with an anchor foot spaced by a gap from the actuating foot, and another arm that is engaged by a spring carried on the holder that normally tries to bias the lever to move from an operative position into an inoperative position. A slide cam on the housing has lobes or formations which are engageable with the actuating feet of the levers to displace the holders and engageable between the feet of the lever so as not to displace the holders. Furthermore, a tip cam is provided on the housing engageable with the other arm of each of the levers to displace it into the operative position. A plurality of magnetic actuators each comprising an electromagnetic portion and a permanent-magnet portion are capable of holding the anchor feet in the operative position into which they are moved by the tip cam. Two sets of such needle holders are provided on the machine spaced axially from one another so that displacement speed can be doubled.

REFERENCES:
patent: 2025463 (1935-12-01), Lombardi
patent: 3535892 (1970-10-01), Schmidt et al.
patent: 3710594 (1973-01-01), Bourgeois
patent: 3742733 (1973-07-01), Paepke
patent: 3890805 (1975-06-01), Bourgeois
patent: 3930383 (1976-01-01), Nuber
patent: 3972206 (1976-08-01), Mureso

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