Integral safety helmet

摘要

The integral safety helmet has a chin guard which can be folded up. For the release of the chin guard, a central opening bar is provided on the front side of the chin guard. As a result, the lock can easily by opened by only one hand or by the thumb of the motorcyclist. The opening bar is a two-armed lever having an upper arm and a lower lever arm. The chin piece can be released in two different manners.