| 摘要 |
<p>The door hinge has a housing (2) fixed to a door leaf of the door system. Another housing (3) is fixed to a frame of the door system. The holding plates (22,32) are provided to fix the housings to the door leaf and the frame. The two housings are connected by a U-shaped joint (4), where the housings are connected with each other in a rotating manner.</p> |
