Electronically controlled circular knitting machine

Details Electronically controlled circular knitting machine Electronically controlled circular knitting machine

1984-06-04

1986-05-13

Reynolds, Wm. Carter

Textiles: knitting

Pattern system

Electrical signal type

350 962, D04B 1500

Patent

active

045878129

ABSTRACT:
To transfer electric control signals between a stationary portion and rotary portion of a machine, in particular a circular knitting machine, a device is disclosed which comprises two optical fiber cables respectively attached, the one to the stationary portion and the other to the rotary portion, and arranged to axially face each other on the rotation axis of the machine rotary portion such that the light flux can be transferred from one fiber to the other. An electro-optical element converts the electric signals, which may be of the digital type, into optical signals, which are applied to one of the optical fiber cables and then received on the other cable through a coupling for free relative coaxial rotation. The signals are again converted into electric signals through an opto-electric element, and then processed to control machine actuators. The transfer arrangement is free of any sliding electric contacts and unaffected by noise and interference.

REFERENCES:
patent: 3317735 (1967-05-01), Elsasser
patent: 3922063 (1975-11-01), Marrone
patent: 4124272 (1978-11-01), Henderson et al.
patent: 4167861 (1979-09-01), Krause et al.
patent: 4303300 (1981-12-01), Pressiat et al.
patent: 4385507 (1983-05-01), Sawazaki
patent: 4398791 (1983-08-01), Dorsey
patent: 4472052 (1984-09-01), Lofgren

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