US Patent 9326560 Safety helmet with improved liner and chinstrap

A safety helmet has a protective shell, an inner liner with several attachment branches, and at least a first securing clip to fit an accessory on the outer surface of the shell. Each attachment branch of the liner comprises a fixing part inserted and blocked in a slide of the shell by said first securing clip which acts both as latch to attach the liner to the shell and as female loop for clipping of a second securing clip connected to a chinstrap.