Patent ID: 8413382

Claim:
A hinge comprising: a first hinge plate fixed to a frame; a second hinge plate installed so as to be capable of opening and closing with respect to the first hinge plate to mount a door panel main body; a shaft member supporting pivotally the second hinge plate so as to be capable of opening and closing with respect to the first hinge plate; and a hinge plate opening-angle restraining mechanism installed from the first hinge plate to the second hinge plate to stop the opening movement of the second hinge plate with respect to the first hinge plate at a fixed angle; wherein the hinge plate opening-angle restraining mechanism comprises: a guide plate installed integrally at the first hinge plate, a guide hole formed in an elongated manner at least in a vertical direction of the guide plate, a receiving plate portion installed integrally in a horizontal direction from the guide plate below the guide hole, an engaging hole drilled at the receiving plate portion, a guide portion continuously slanted downward toward a side opposite from the guide plate, a bracket portion installed integrally in a horizontal direction from the second hinge plate, and wherein the bracket portion includes a shaft hole, and a hold-stay rod installed between the shaft hole of the bracket portion and the guide hole of the guide plate, and wherein the hold-stay rod comprises: a vertical shaft portion loosely fitted perpendicularly into the shaft hole of the bracket portion, a horizontal shaft portion installed horizontally with respect to the vertical shaft portion and inserted into the guide hole of the guide plate so as to be capable of sliding, and a stopper portion formed by folding the leading end of the horizontal shaft portion downward perpendicularly, inserted into the engaging hole by moving from the guide portion to the receiving plate portion due to opening movement of the second hinge plate with respect to the first hinge plate, and capable of being taken out from the engaging hole.