Patent ID: 6438798
Filing Date: 2002-08-27
Classification: G02C,Y10T

Abstract:
A hinge comprising:a first rigid part including a first knuckle at one end; a second rigid part comprising a second and a third knuckle at a first end, said first knuckle being insertable between said second and third knuckles, said first rigid part being pivotably mounted about a pin that extends through said first, second and third knuckles; a leaf spring contained within said first rigid part, said leaf spring comprising a clamping portion for engaging a cam surface for defining stable relative angular positions of said first and second rigid parts; and a bush around said pin, said bush having a cylindrical passage accommodating said pin and an external peripheral surface forming said cam surface; said leaf spring expanding perpendicular to axes of rotation of said first and second rigid parts; said leaf spring being substantially in a shape of a Y having two arms that form said clamping portion.