Before installing a guard or safety device, sufficiently consider the physique and working
posture of workers. If it is assumed that a part of body enters the hazardous area by going
through under the lower limit of the guard range or the protection range of a light curtain, take
measures such as completely shielding the working surface or furnishing a light curtain
combined with a baffle plate.
2-3. Measures against entry from outside (under lower limit ) of protection range
7
Even if the operation side is protected with a guard or a safety device, workers may enter
from a position other than the front side for unsteady work such as adjustment or inspection.
Also, you need to consider protection for assistant workers and third persons.
Protect with a fixed guard or a light curtain even against the entry from the side of the
machine.
2-4. Measures against entry from outside (left or right side) of protection range
Protection
examples
Automatic movable front guard Light curtain + Baffle plate
Protection
examples
Light curtain + Side guard
Light curtain (three-sided protection)
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