A hard hat is a type of helmet predominantly used in workplace environments, such as construction sites, to protect the head from injury by falling objects, impact with other objects, debris, bad weather and electric shock. Inside the helmet is a suspension that spreads the helmet's weight over the top of the head. It also provides a space of approximately 30 mm (1.2 inch) between the helmet's shell and the wearer's head so that if an object strikes the shell, the impact is less likely to be transmitted directly to the skull. Sometimes the helmet shell has a mid-line reinforcement ridge, which strengthens it against impact.
Blue-collar workers, especially union shop construction workers, engaged in occupations that require protective equipment are sometimes metonymically referred to as "hard hats".
A bump cap is a lightweight kind of hard hat with simplified suspension or padding in lieu of suspension and having only a chin strap. It is used where there is a possibility of scraping or bumping one's head on equipment or structure projections, but is not strong enough to absorb large impacts, such as from a tool dropped several stories.
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Famous quotes containing the words hard and/or hat:
“One of the main things that interfere with our joy is the belief that if we try hard enough, read the right books, follow the right advice, and buy the right things, we could be perfect parents. If we are good enough as parents, our children will be perfect too.... Unfortunately, what comes from trying to live out this philosophy is not perfect children but worried parents.”
—Lawrence Kutner (20th century)
“But off with your hat and three times three for Columbia’s
true-blue sons,
The men below who batter the foe—the men behind the guns!”
—John Jerome Rooney (1866–1934)