| 摘要 |
The present invention relates to a hinge for opening and closing a door, used to open and close the door, and more particularly, to a hinge for opening and closing a door, installed on a spherical door to allow the spherical door to be opened and closed without damage to the hinge in such a manner that a rotational axis is changed when the door is opened and closed. The hinge comprises a fixing part, a rotation part, a ball, and a spring. The fixing part has a plurality of coupling grooves formed thereon and a first hinge part protruding upward. The rotation part has a plurality of coupling grooves formed thereon and a second hinge part formed to protrude toward one side. The ball has a through hole formed therethrough and is provided between the first hinge part and the second hinge part to be coupled through a bolt passing through the ball in such a manner that a body of the bolt protrudes from one side of the first hinge part. The spring is inserted into and is installed on a screw part protruding from the bolt. According to the present invention, the movable ball is included in a connection part where the rotational axis of the hinge is formed such that the ball is moved by the twist of the rotation axis as the spherical door is opened and closed, thereby allowing the spherical door to stably be opened and closed. Furthermore, the hinge can directly be installed on the spherical door without occupying an interior space of the door, thereby allowing the thickness adjustment of the door. Moreover, the esthetic appearance of the door is not deteriorated in a case where the exterior of the door has a curved surface to emphasize the design of the door. |
