Patent ID: 11920855
Assignee: EPTECH CO., LTD.
Field: Civil engineering (Other fields)
Classification: CPC E  F | IPC E  F

Claim 0:
1. A multi-joint link hinge, comprising:
a first bracket including:
a base plate having a plurality of screw holes; and
first and second side walls extending from the base plate and spaced apart from each other in a first direction;
a first linkage configured to support an upper door and to couple to a lower side of the upper door;
a second linkage disposed below the first linkage and to couple to an upper side of a lower door, the first and second linkages being received between the first and second side walls;
at least one rotation shaft rotatably coupling the first and second linkages to the first bracket, and the rotation shaft is to pass through the first and second side walls and the first and second linkages; and
a spacer provided between the first and second side walls, and the spacer configured to have the rotation shaft inserted through the spacer, and
wherein the spacer supports each portion of the first and second linkages penetrated by the rotation shaft to maintain a prescribed distance between the first and second linkages.