Safety device for an IC handler and method for its operation

Details Safety device for an IC handler and method for its operation Safety device for an IC handler and method for its operation

1991-10-11

1993-01-05

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specific condition

340540, 340674, 340679, 437 8, G08B 2100

Patent

active

051774690

ABSTRACT:
In a safety device for an IC handler in which a carrier arm and a carrier head, which carry IC elements to testing stations and carry tested IC elements from said testing stations to another position, are covered with covers for safety in such a manner that they can freely be opened and closed, a cover lock mechanism for locking the covers in their closed state and a cover unlock switch are provided. When it is detected, in the ON state of the cover unlock switch, that the IC handler is not in operation, the cover lock mechanism is unlocked by the detected output and the drive current to a motor for driving the carrier arm and the carrier head is cut off, and then it is displayed that the covers may be opened.

REFERENCES:
patent: 3631447 (1971-12-01), Sulat et al.
patent: 4859993 (1989-08-01), Kagami et al.
patent: 4987407 (1991-01-01), Lee

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