HINGE Russian patent published in 1994 - IPC

FIELD: construction. SUBSTANCE: hinge has two identical strips, axle having the shoulder in the middle part. The shoulder is equidistant from the axle faces. The hinge also has two half-axles and ball. Tubular members are fixed on the half-axles by means of removable pins. One face of the axle bears upon the half axle via the ball. There is a gap between the other face and half-axle. Upper tubular member has holes on both ends to install removable stops. EFFECT: enhanced efficiency of construction. 1 dwg