| 摘要 |
A door hinge for recessed installation between an edge of a door panel and a door jamb has first and second leaf assemblies that each form a cavity and are recessed in the door-panel edge and in the door jamb and a pair of U-section links pivoted centrally together about a center axis and each having a first end and a second end engaged in the cavities of the respective first and second leaf assemblies. The first end of one of the links and the second end of the other link are pivoted about respective vertical axes fixed in the respective leaf assemblies and the second end of the one link and the first end of the other link are pivotal about another respective vertical axis and horizontally shiftable in a respective guide of the respective leaf assemblies.
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