| 摘要 |
An elevator car door interlock that uses flags along a hoistway in registered areas where elevator car doors are permitted to open. The elevator car door interlock is mounted to the outside of an elevator car door using a mounting plate and includes a locking assembly mounted to the sill of the elevator car door. The car door interlock includes a lever with a hook at its distal end. The interlock also includes a flag engagement arm perpendicularly mounted to the lever. When the car door is opened the lever begins to slide into the locking assembly. If the flag engagement arm engages a flag on the hoistway then the hook is prevented from being lodged into the locking assembly and the car door is permitted to open. Inversely, if no flag is engaged, the lever will continue to rotate urging the hook to be lodged within the locking assembly, thereby preventing the elevator car door from opening further. In an alternate embodiment, an electric switch assembly can be used to turn off the driving means of the elevator. The switch is only closed, thereby activating the driving means, when the doors are fully closed and the hook is in the reset position. |
