Adjustable locking door hinge
AssigneeUnlimited Ideas and Designs Inc.
InventorEldon R. Baker
Life of this patent
Estimating the term…
Abstract
A locking hinge assembly includes two butt plates or hinge leaves each having a plurality of interlocking knuckles with an axially shiftable hinge pin mating with the knuckles. A locking mechanism carried by the top of the hinge pin includes pressure and sprocket plates, with one plate keyed to the hinge pin and spring devices adjustably compressible to apply varying degrees of biasing force against the movement of one hinge leaf relative the other hinge leaf. This is accomplished due to the juncture of one hinge leaf to the sprocket plate while the keyed pressure plate is fixed relative the other hinge plate.
Claims9
A locking hinge assembly comprising;
- first and second hinge leaves respectfully having first and second cylindrical knuckles in intermeshing relationship,
- a hinge pin extending through said first and second knuckles, said hinge pin having upper and lower portions axially extendible beyond said first and second knuckles and axially shiftable with respect to said knuckles,
- means nonrotatably fixing said hinge pin relative said second hinge leaf,
- a locking mechanism surrounding said hinge pin upper portion and including a base element fixed relative said first hinge leaf, catch means projecting from said base element,
- a sprocket plate disposed above said base element and axially shiftable with said hinge pin to locked and unlocked positions respectively engageable with and released from, said catch means,
- a pressure plate keyed to said hinge pin upper portion above said sprocket plate,
- spring means adjacent said pressure plate, and
- actuating means adjustably shiftable on said hinge pin upper portion to variably compress said spring means to apply a biasing force resisting arcuate displacement between said sprocket and pressure plates.
Dependencies are inferred from the claim text.