Elevator Door Safety Devices

If a person or an object blocks the doorway and the sensors detects the person or object.

Elevator door safety devices.

It continuously scans for interrupted beams and will reopen the elevator doors instantly if one is found. Three inches is the maximum distance permitted between the backside of the closed hoistway door at the elevator landing and the edge of the threshold at that floor landing. Device for locking landing doors hoistway door interlock. 1 device for locking landing doors hoistway door interlock.

Other safety devices and switches. An elevator system encoder. Door sensors sometimes known as photoelectric or infrared beam electric safety door edges door detector electric proximity edges or electric doorman is an elevator device that detects a passenger or an object on the doorway which prevents the doors from closing usually installed for accessibility. Its reliable braking element is combined with the latest sil3 position and speed detection and electromechanical gear activation.

This device is installed on cabin near the elevator motor basically it runs through the complete shaft with the guidance on ropes. An elevator safety string. The committee s investigation of elevator door safeties was prompted by a proposed new ordinance that would require all elevators in baltimore to be equipped with a device which is supposed to hold the elevator at the door until the door leading into the elevator shaft is shut and securely fastened 3 the association claimed that to. Optiguard door protection device the optiguard door protection system aaa24591am2 unitec uses 154 infrared emitters and detectors to creat an invisible safety net across the elevator entrance.

The so called 3 x 5 rule for elevator landings is an important section in the safety governing code for home elevators asme a17 1 part 5 3 private residence. Safety gear wittur esg is a breakthrough safety system solution for new elevator installations. There are 2 main safety devices used in an elevator. The elevator safety device of claim 1 wherein the safety condition whose detection results in actuation of the one or more braking assemblies comprises one or more of the following conditions.