Patent ID: 11857020

Abstract:
A collapsible protective helmet (10) comprises an impact-resistant base body (11) intended to encircle the head of a wearer and an impact-resistant crown (12) coupled to the base body by coupling means to be movable between a protective position in which the crown is supported by the base body in an orientation in which the crown covers the top of the head of the wearer and a stored position inverted relative to the protective position in which the crown is supported by, but nested in, the base body. The helmet further comprises releasable locking means for locking the base body (11) and crown (12) together in each of the two positions of the crown. The coupling means permits movement between those positions by pivotation of the crown relative to the base body in a direction away from the base body so as to no longer be supported by the base body rotation of the crown relative to the base body through substantially 180 degrees and pivotation of the crown relative to the base body in a direction towards the base body so as to again be supported by the base body.