| 摘要 |
This helmet comprises a device enabling a visor or movable front element to be fastened and removed rapidly. It comprises, corresponding with the ends of the front opening, elements forming the connection part of two devices for rapid locking and unlocking, to which may be fastened the ends of a visor or of a front element, these devices comprising a stationary element integral with the crown of the helmet and an element capable of turning partially, superposed on the stationary element. This device makes it possible to use, as desired, a visor or a front element, while having available only a single helmet, and to rapidly fit or remove these elements. <IMAGE>
|
