Concealed door hinges operate using a mechanism that hides the hinge components when the door is closed, providing a clean and seamless look. Unlike traditional visible hinges, which typically feature two metal leaves joined by knuckles and a pin, concealed hinges employ a different design principle.
According to the provided description, the core of a concealed hinge consists of a plate and a cup. These two main components are interconnected by a mechanism.
The working principle is centered around this mechanism:
- Instead of relying on the visible interlocking of leaves and a pin as seen in conventional hinges, the connection is made through the internal mechanism linking the plate and the cup.
- When the door is in the closed position, or until the hinge is opened, this mechanism is designed to nest within the cup.
- This nesting action allows the bulk of the hinge assembly to be recessed and hidden from view within the door and frame, giving concealed hinges their defining characteristic of invisibility when the door is shut.
In essence, the hidden mechanism inside the cup facilitates the pivot and movement required to open and close the door, while the design ensures the hinge is not visible on the exterior surfaces when the door is closed.
