Chinstrap activated head adjustment assembly for a protective helmet assembly.

摘要

There is disclosed a protective helmet assembly (10) including an outer impact shell (12) and an inner impact attenuation liner assembly (14) wherein the inner liner assembly (14) includes an adjustable headband assembly (44) comprised of a front headband member (46) and a rear spring-loaded headband member (48) under the control of a chinstrap (20) into a fitted configuration about the head of the user by a clip assembly (102). The inner impact attenuation liner assembly (14) is mounted within the outer impact shell (12) to separate therefrom under predetermined load conditions.