| 摘要 |
A door hinge is provided to keep a door in an opened state by installing a locker stopped by locking a door fixing unit when the door fixing unit is rotated at an angle of 90 degrees or above and opened in an outer side of a door frame fixing unit. In a door hinge including a door frame fixing unit(10) having a cylinder unit(12) in one side of the first fixing flange(11); a door fixing unit(20) provided with a rotational assembling cylinder unit(22) corresponding to upper and lower sides of the cylinder unit in one side of the second fixing flange(21); and a torsional elastic spring(30) for closing the door automatically by elastic restoring force accumulated in the case of opening the door, the door hinge is provided with a locker(15) blocking and stopping the door fixing unit when the door fixing unit is rotated at a predetermined angle or above and opened in an outer side of the cylinder unit. |
