PROTECTION HELMET PROVIDED WITH A LOCKING SIGNAL

摘要

Helmet provided with a signal ensuring the user that the locking of the retention system is totally achieved. In the case represented, the signal is a sound source (9) which is power supplied by a battery (8). The attachment plate (2) of the chin strap to the shell is also part of the power supply circuit for the signal (9). The closing of such circuit takes place when the force exerted against the textile tape (4) by the user's head is sufficient to establish contact between the flexible blade (19) and the part (2). The signal stops emitting when said force disappears upon removal of the helmet or when the chin strap (7) is sufficiently tensioned towards the inside of the helmet and is therefore properly fastened to separate the flexible blade (6) from its contact point on the extension (13) of the part (2). Said device is particularly adapted to helmets for motorcyclists.