Protective helmet for e.g. fireman, has pieces attaching mask fixed to shell, and adjusting unit with complementary protrusions made on wall cooperating with complementary profiles between protruding profiles joined to intermediate piece

摘要

The helmet has attaching pieces (16a, 16b) for attaching a breathing mask fixed to an outer shell, and an adjusting unit adjusting the position of the piece. The unit has a succession of protrusions (17) joined to the shell and cooperating with a succession of hollow profiles. The unit has a succession of complementary protrusions each made on a wall separating the two successive profiles and cooperating with a succession of complementary hollow profiles made between two protruding profiles joined to the shell or an intermediate piece (16c) that, itself, is joined to the shell.