Patent ID: 6364479
Filing Date: 2002-04-02
Classification: G02C

Abstract:
A shaft of eyeglasses comprising:a front hinge member including a front engagement member adapted to be hingedly secured to an endpiece of the eyeglasses, with the front hinge member including a circular hole having a periphery, and at least a first notch on the periphery of the circular hole, with the circular hole including a slope inside of the notch; and a central member including a protruded peg inserted into the circular hole, with the protruded peg including at least a first protrusion slidably engaged with the notch, an arcuate groove movably engaged with the slope, a latched member having a tapered end, and an axial slit extending diametrically across and down the center of the protruded peg, with a rear earpiece connected to the central member, wherein the angle of the central member with respect to the hinge member is adjustable.