Elevator doors constitute a critical component of the elevator system, serving the dual purposes of facilitating passenger passage and ensuring safety.
An elevator door assembly consists of two main parts: the landing door, which is fixed at the floor entrance, and the car door, which moves in tandem with the elevator car; the opening and closing operations are executed through a linkage mechanism between the car door and the landing door.
Based on their opening mechanism, elevator doors are primarily classified into side-sliding doors and center-opening doors. Based on their sensing method, they can be categorized into mechanical contact-plate doors, light-curtain doors, and hybrid doors that integrate both contact-plate and light-curtain technologies.
A complete elevator door system comprises the door operator drive unit, the door locking mechanism, the door control system, and other related components.
