Safety device for a knitting machine

Details Safety device for a knitting machine Safety device for a knitting machine

1983-06-07

1985-03-19

Feldbaum, Ronald

Textiles: knitting

Stopping

66163, D04B 3510

Patent

active

045051356

ABSTRACT:
A safety device is provided for a knitting machine to ensure that the carriage stops in the case of sudden variation of the speed as a result of an impact or other occurrence such as tangling of the yarn into a ball. The device includes a metal strip formed with equidistant perforations assembled parallel to one of the needle bars of the knitting machine. A bridge integral with the carriage moves along this strip, and has on one side an emitter and on the other a transducer. When the carriage moves the succession of perforations gives rise to pulses of length inversely proportional to the translational speed of the carriage. A CPU processing unit processes the signal obtained after amplification and shaping of the pulses and delivers a STOP signal when a sudden disturbance is detected in the movement of the carriage.

REFERENCES:
patent: 3719061 (1973-03-01), Hadam et al.
patent: 3780297 (1973-12-01), Gery
patent: 3955407 (1976-05-01), Rozett
patent: 4027982 (1977-06-01), Ohishi
patent: 4037157 (1977-07-01), Campbell

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