Helmet with flush aligned shield when closed

摘要

A safety helmet includes a shield movable relative to a shell from an open to a closed position, and vice-versa through operation of a shield actuation system. When in the closed position, the shield actuation system permits the shield to be aligned substantially flush with the shell. Further, the shield actuation system allows the shield to be opened through a manual process that includes pushing on a lever or button to initially release the shield and then rotate the shield into the open position. The shield actuation system includes a number of plates with at least two of the plates in kinematic cooperation for allowing the shield to pop out and then rotate relative to the shell.

主权项

1. A helmet comprising:
a shell having an external shell surface; a shield having an external shield surface, the shield movable from a closed position to an open position relative to the shell, the shield surface aligned substantially flush with the adjacent shell surface when the shield is in the closed position; and a shield actuation system having:
an inner plate fixed to the shell;an outer plate positioned on the shield; andan intermediate plate located between the inner plate and the outer plate, the intermediate plate being secured to the inner plate via a plurality of pins retained within a plurality of slots, the pins being slideable within the slots to enable movement of the intermediate plate with respect to the inner plate between a first position in which the intermediate plate is closely adjacent the inner plate and a second position in which the entire intermediate plate is moved laterally outward from the inner plate;the outer plate further having a perimeter defining an interior space and being pivotally connected to the intermediate plate for rotation of the perimeter of the outer plate about a pivot point located within the interior space of the outer plate, whereby the outer plate defines an outer plate plane and the intermediate plate defines an intermediate plate plane, the outer plate plane being substantially parallel to the intermediate plate when the shield is in both the open position and the closed position; whereby actuation of the shield actuation system when the shield is in the closed position causes the intermediate plate to move to the second position and enables the outer plate to rotate with respect to the intermediate plate to move the shield to the open position.