Safety helmet with supplemental inner visor
Protective helmet of the type comprising a first outer visor to intercept the viewing aperture of the helmet mounted rotatably on said helmet, a second visor mounted, inside said first outer visor, rotatably on the cap of the helmet, and a device for actuation and mounting of said second visor on said cap, said second visor including a shielding portion and two ends at the sides of said shielding portion and being at least partly elastically deformable. The inner visor comprises, at least at one side end thereof, a fork and, at or in proximity of one or other of the side ends thereof, at least one externally projecting tooth. Correspondingly, said device for actuation and mounting comprises at least one pin for engaging, directly or indirectly, with said fork and at least one circular guide inside which said projecting tooth of said second visor is removably coupled in a sliding manner, said at least one pin and said at least one circular guide being integral and/or integrated with said cap.
1. Protective helmet, comprising:
a first outer visor to intercept the viewing aperture of the helmet mounted rotatably on said helmet;
a second visor mounted, inwardly to said first outer visor, rotatably on a cap of the helmet; and
a device for actuation and mounting of said second visor on an interior side of said cap,
wherein said second visor, which is at least partly elastically deformable, comprises a shielding portion, two ends at sides of said shielding portion, a fork at least at one of the ends, and at least one externally projecting tooth formed on the second visor, which is elastically movable with respect to said second visor, and
wherein said device for actuation and mounting comprises at least one pin for engaging, directly or indirectly, with said fork, and at least one circular guide inside which said projecting tooth of said second visor is removably coupled in a sliding manner, said at least one pin and said at least one circular guide being integral or integrated with said cap.
2. Protective helmet as claimed in claim 1 , wherein said device comprises a manual control member constrained in a movable manner to the cap of said helmet and at least one kinematic mechanism to transmit motion from said manual control to said second inner visor.
3. Protective helmet as claimed in claim 2 , wherein said kinematic mechanism to transmit motion comprises a mechanical transmission connected to said manual control member and to said second visor at or in proximity of said fork.
4. Helmet as claimed in claim 3 , wherein said kinematic mechanism comprises at least one tie constrained to said second visor and to said manual control.
5. Helmet as claimed in claim 3 , wherein said kinematic mechanism comprises at least one lever constrained to said second visor and to said manual control.
6. Helmet as claimed in claim 2 , wherein said manual control is a slider.
7. Helmet as claimed in claim 2 , wherein said kinematic mechanism to transmit motion comprises a further lever hinged to said at least one pin and removably connected to said fork.
8. Helmet as claimed in claim 1 , wherein said device for actuation and mounting of said second visor comprises means to limit rotation of said second visor between a top end of travel position with said second visor disengaged from the viewing aperture of the helmet, and a bottom operational end of travel position intercepting said viewing aperture of the helmet.
9. Helmet as claimed in claim 8 , wherein said means to limit rotation of said second visor comprise at least one hook projecting from the top of said shielding portion of said second inner visor and at least one stop for said hook, said stop being integral with the cap of said helmet.
10. Helmet as claimed in claim 8 , wherein said means to limit rotation of said second visor also comprise elastic means for temporary locking of one or more positions of said second visor.
11. Helmet as claimed in claim 8 , wherein said at least one circular guide for said at least one projecting tooth of said second visor extends, at least downward, beyond the position reached by said at least one projecting tooth when said second visor is disposed at said bottom operational end of travel position.
12. Helmet as claimed in claim 1 , wherein said at least one circular guide and said at least one pin of said actuation and mounting device of said second visor are mounted or made inside said cap.
13. Helmet as claimed in claim 1 , wherein said at least one circular guide comprises a circular groove produced inside said cap, said groove being provided with a through slot.
14. Helmet as claimed in claim 13 , wherein said slot is positioned at the portion of said at least one circular guide that extends downward beyond the position reached by said at least one projecting tooth when said second visor is disposed at said bottom operational end of travel position.
15. Helmet as claimed in claim 1 , wherein said second visor comprises two forks at both of the side ends thereof and two externally projecting teeth, at or in proximity of each of said side ends and in that said device for actuation and mounting of said second visor comprises two pins for engaging, directly or indirectly, with said two forks and two circular guides inside which said two projecting teeth are removably coupled in a sliding manner.
16. Helmet as claimed in claim 1 , wherein said second inner visor is a visor for partly shielding the light.