Helmet visor with locking hinge assemble
First Claim
1. In combination a helmet;
- a visor; and
a hinge assembly for mounting said visor on said helmet, said hinge assembly including first detent means carried by said helmet, second detent means carried by said visor, bias means resiliently urging said first and second detent means into engagement with each other to accommodate rotational movement of said visor about a pivot axis among a plurality of detent positions including a fully closed position and a fully open position, said bias means resiliently retaining said visor in each of said detent positions, and non-threaded locking means coupled to said first and second detent means and including a portion rotatably movable about said pivot axis between an unlocking condition accommodating movement of said visor among said detent positions and a locking condition cooperating with said first and second detent means for locking said visor in a selected one of said detent positions.
2 Assignments
0 Petitions
Accused Products
Abstract
A locking hinge assembly for mounting a visor on a helmet includes a cylindrical body which is fixed in an opening in the helmet and is loosely received through an aligned opening in the visor. The body has an annular detent flange with detent recesses therein in which are received detent studs carried by the visor for accommodating movement of the visor among a plurality of discrete detent positions. The locking assembly includes a shaft extending through an axial bore in the body and having an enlarged cam head at the outer end thereof. A cam disk is disposed between the head and the visor and has cam studs which cammingly engage cam recesses in the head. A spring washer is disposed between the cam disk and the visor for urging the detent studs into the recesses to resiliently hold the visor in each detent position and for urging the cam disk against the head. The cam disk responds to manual rotation thereof for axial camming movements toward the visor for frictionally locking it in a selected detent position and away from the visor to release it for movement among its detent positions.
-
Citations
20 Claims
-
1. In combination a helmet;
- a visor; and
a hinge assembly for mounting said visor on said helmet, said hinge assembly including first detent means carried by said helmet, second detent means carried by said visor, bias means resiliently urging said first and second detent means into engagement with each other to accommodate rotational movement of said visor about a pivot axis among a plurality of detent positions including a fully closed position and a fully open position, said bias means resiliently retaining said visor in each of said detent positions, and non-threaded locking means coupled to said first and second detent means and including a portion rotatably movable about said pivot axis between an unlocking condition accommodating movement of said visor among said detent positions and a locking condition cooperating with said first and second detent means for locking said visor in a selected one of said detent positions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- a visor; and
-
9. In combination a helmet;
- a visor;
a hinge assembly including detent structure for mounting said visor on said helmet for rotational movement about a pivot axis among a plurality of detent positions including a fully closed position and a fully open position; and
locking mechanism for said hinge assembly, said locking mechanism including non-threaded first cam means coupled to said detent structure, non-threaded second cam means disposed for rotational movement about said pivot axis with respect to said first cam means, and bias means resiliently holding said first and second cam means in camming engagement with each other, said second cam means being movable between an unlocking condition accommodating rotational movement of said visor among said detent positions and a locking condition cooperating with said detent structure for locking said visor in a selected one of said detent positions. - View Dependent Claims (10, 11, 12, 13, 14, 15)
- a visor;
-
16. In combination a helmet;
- a visor; and
a hinge assembly for mounting said visor on said helmet, said hinge assembly including first detent means carried by said helmet, second detent means carried by said visor, bias means resiliently urging said first and second detent means into engagement with each other to accommodate rotational movement of said visor about a pivot axis among a plurality of detent positions including a fully closed position and a fully open position, said bias means resiliently retaining said visor in each of said detent positions, first non-threaded cam means coupled to said first detent means, and second non-threaded cam means disposed for rotational movement about said pivot axis with respect to said first cam means, said bias means being disposed for resiliently holding said first and second cam means in camming engagement with each other, said second cam means being movable between an unlocking condition accommodating rotational movement of said visor among said detent positions and a locking condition cooperating with said first and second detent means for locking said visor in a selected one of said detent positions. - View Dependent Claims (17, 18, 19, 20)
- a visor; and
Specification