What type of cover must guard every hatchway and chute floor opening?

A hinge floor-opening cover is designed to provide a reliable and safe method of protecting hatchways and chute floor openings. This type of cover is not only convenient for frequent use but also minimizes the risk of accidental falls or hazards when not in operation. The hinged design allows for easy opening and closing while remaining secure when in the closed position.

Using a hinged cover ensures that there are no loose or improperly placed covers that could create a tripping hazard or become dislodged, enhancing safety in areas with heavy foot traffic or the movement of equipment. The cover also serves to keep the area around the opening clear of debris and other materials that could pose safety risks.

While other options may have their own applications, they do not provide the same level of security and convenience in managing access to openings that can pose significant safety hazards.