Flip-up and down glasses including a spring-loaded cam-hinge mechanism
OwnerGlenn Parkinventor
Life of this patent
Estimating the term…
Abstract
Flip-up and down glasses including a first frame having ear pieces for the support thereof on a wearer of the first frame and a second frame for carrying a visor or optical glasses and a flip-up and down spring-loaded cam-hinge mechanism for the second frame comprising a horizontally extending hollow sleeve, a shaft extending through the sleeve and axially secured to the first frame, a first cam having cam surfaces supported and spring-loaded for horizontal movement within the sleeve and a second cam horizontally secured on the shaft and including cam surfaces for riding on and over the cam surfaces of the horizontally moveable spring-loaded first cam to define flip-up and down positions for the second frame secured to either the second cam or to the sleeve.
Claims11
Flip-up and down glasses comprising:
- a first frame having ear pieces for the support thereof on a wearer of the first frame;
- a second frame for carrying optical glasses or a visor;
- and
- a flip-up and down spring-loaded cam-hinge mechanism for the second frame, including
- a horizontally extending hollow sleeve,
- a shaft extending through the sleeve and axially secured to a first frame,
- a first cam having horizontally-extending cam surfaces supported and spring-loaded for horizontal movement within the sleeve;
- and
- a second cam horizontally secured on the shaft and including horizontally-extending cam surfaces for riding on and over the cam surfaces of the horizontally moveable spring-loaded first cam to define flip-up and down positions for the second frame secured to either the second cam or to the sleeve.
A spring-loaded cam-hinge mechanism for flip-up and down visors and eye glass frames, comprising:
- a horizontally extending hollow sleeve;
- a shaft extending through the sleeve and axially secured to a first frame having ear pieces for the support thereof on a wearer of the first frame;
- a first cam having horizontally-extending cam surfaces supported and spring-loaded for horizontal movement within the sleeve;
- and
- a second cam horizontally secured on the shaft and including horizontally-extending cam surfaces for riding on and over the cam surfaces of the horizontally moveable spring-loaded first cam to drive the spring-loaded cam within the sleeve to store energy therein and define flip-up and down positions for a second frame secured to either the second cam or to the sleeve.
Dependencies are inferred from the claim text.