Door hinge

Abstract

The present invention relates to a door hinge including: a fixed part having a body formed in an angular pipe shape of at least a triangle or more, a rack gear disposed parallel to the body on one side inner surface of the body, and an insertion hole formed on the side portion of the body in such a manner as to communicate with the interior of the body; and an operating part having a rotary shaft, a pinion gear disposed on the outer peripheral surface of the rotary shaft in such a manner as to correspond to the rack gear, and a moving piece protruding outwardly from the outer peripheral surface of the rotary shaft, wherein the rotary shaft is inserted into the insertion hole in such a manner as to allow the moving piece to outwardly protrude from the door hinge, and the moving piece rotates around the rotary shaft, so that the rotary shaft moves along the rack gear.

Dependencies are inferred from the claim text.