In-running nip point

There are five types of machine motion (see Figure 13-2) that create machine hazards rotation, reciprocating or transverse motion, in-running nip points or pinch points, cutting actions, and punching, shearing, and bending. 

October 9, 2014, Cincinnati, OH. The Occupational Safety and Health Administration issued a citation to Kloeckner Metals Corp. for failure to guard an in-running nip point on a machine with rollers that moved materials into the machine. On April 22, 2014, a worker got caught in the machine action and suffered severe injuries. The citation included a repeat violation because the company had received a similar citation the previous year. The citation included penalties of 56,000. ... 

An employee got his hand caught in a machine s in-running nip point while trying to make a minor machine adjustment. When the injury was investigated, the incident review team could not identify any condition that created a hazard nor why the employee would stick his hand knowingly into the moving piece of equipment. The safety rule was that all equipment should be shut down and locked out before any type of maintenance or adjustments. 

For the Textile Industry, because of the presence of excessive deposits of lint, which constitute a serious fire hazard, the sides and face sections only of nip-point belt and pully guards are required, provided the guard shall extend at least 6 inches (15.24 cm) beyond the rim of the pulley on the in-running and off-running sides of the belt and at least 2 inches (5.08 cm) away from the rim and face of the pulley in all other directions. 

Conveyors. When using conveyors, workers hands may be caught in nip points where the conveyor medium runs near the frame or over support members or rollers workers may be struck by material falling off the conveyor or they may become caught on or in the conveyor, being drawn into the conveyor path as a result. 

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