Method of and apparatus for emergency shutdown of production lin

Details Method of and apparatus for emergency shutdown of production lin Method of and apparatus for emergency shutdown of production lin

1989-07-25

1991-01-15

Gorski, Joseph M.

Metal working

Method of mechanical manufacture

Assembling or joining

29706, 901 7, 901 49, 191 8, B21D 3903, B23P 2100

Patent

active

049843494

ABSTRACT:
A production line for manufacturing automobiles, for example, has a plurality of self-propelled carriages for carrying workpieces respectively thereon, the self-propelled carriages having respective first emergency shutdown circuits, and a plurality of automatic machines for processing the workpieces on the self-propelled carriages, respectively, the automatic machines having respective second emergency shutdown circuits, respectively. When one of the self-propelled carriage malfunctions, the first emergency circuit thereon is energized to interrupt movement of the self-propelled carriage along the production line, and operation of the automatic machine which processes the work-piece on the stopped self-propelled carriage is stopped in response to a signal which energizes the first emergency shutdown means on the self-propelled carriage. Alternatively, the second emergency shutdown circuit on one of the automatic machines is energized to interrupt operation of the automatic machine, and movement of the malfunctioning self-propelled carriage which carries the workpiece processed by stopped automatic machine is stopped in response to a signal which energizes the second emergency shutdown circuit.

REFERENCES:
patent: 3796327 (1974-03-01), Meyer et al.
patent: 4018343 (1977-04-01), Perhed
patent: 4627158 (1986-12-01), Mitoh

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