Abstract: 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.

Abstract: A safety helmet comprising an outer shell, an internal headband composed of a neckband at the rear and a securing strap at the front, and an adjustment mechanism of the headband. The adjustment mechanism comprises a double cog-wheel having a first sprocket associated with a first drive rack of the neckband, and a second sprocket associated with a second drive rack of the strap. The two sprockets have different diameters to perform differential driving of the strap and of the neckband.

Abstract: 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. Application: helmet with removable chinstrap and with a liner secured by latching to the shell.

Abstract: A protective helmet is composed of an external crown made from plastic material, and a semi-rigid neckband adjustable by adjustment means. At least one end of the neckband is joined to the crown by a sliding mechanical link comprising position indexing means controlled from a slide able to be moved from the outside in a slit of the crown. The indexing means are formed by a rack molded directly along with the crown.

Abstract: A carabiner comprising a fixed C-shaped body equipped with a securing part, and a gate movable around a pivoting axis between a closed position and an open position. The gate comprises a latching part and a locking ring fitted coaxially around the gate. An end head of the gate partially surrounds the securing part in the closed position, and comprises a shoulder acting as end-of-travel stop for the ring in the locked position.