Detent controlled helmet shields

For combination with a helmet,

• (a) a shield,
• (b) means for mounting the shield to the helmet but with the shield everywhere spaced therefrom for selective pivoting movement between multiple positions, and about a pivot axis,
• (c) a cam element and a follower element to be carried by the helmet, one of the elements positioned on the shield for pivoting movement therewith,
• (d) the cam element defining a succession of alternating riser and dwell surfaces, said riser surfaces generally circularly spaced about said pivot axis and said dwell surfaces also generally circularly spaced about said pivot axis, said riser surfaces located closer to said pivot axis than said dwell surfaces, the entirety of said cam element including said riser and dwell surfaces being located between planes defined by opposite surfaces of the main extent of the shield,
• (e) and spring means acting to urge said elements into yieldable interengagement, with the follower sliding successively along said surfaces in response to shield pivoting and characterized in that shield pivoting is yieldably resisted when the follower engages said dwell surfaces,
• (f) said mounting means including a bearing plate adapted to be anchored to the helmet, the plate also defining said spring means on which said follower is mounted, said spring means extending arcuately about said axis, the follower projecting out of the plane of the plate for selective engagement with said riser and dwell surfaces, the bearing plate having a lug projecting sidewardly thereof for reception in an opening in the helmet, in offset relation to said axis.