Robot cell safety system

Details Robot cell safety system Robot cell safety system

1985-05-02

1987-03-24

Siemens, Terrance L.

Material or article handling

Apparatus for moving intersupporting articles into, within,...

Stack forming apparatus

901 49, 901 47, 414730, 414 5, 250221, B25J 1900

Patent

active

046522050

ABSTRACT:
Arrangements for detecting the presence of an opaque object in an area, such as a person in a robotic work cell. Multiple light sources, light reflecting surfaces, light boxes with hole patterns or fiber optic light sources are spaced around the perimeter of the area and imaged by a camera. The change of the camera signal from its normal condition is used to interrupt power to safeguard personnel and/or machinery.

REFERENCES:
patent: 3746863 (1973-07-01), Pronovost
patent: 3858043 (1974-12-01), Sick et al.
patent: 4105925 (1978-08-01), Rossol et al.
patent: 4446602 (1984-05-01), Marx et al.

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