How do elevator doors work

When there are multiple panels, each moves at a different rate so they are called single speed, two speed and so on. The panel furthest from the edge where the door closes otherwise know as strike side moves the slowest. Doors can open to one side called side slide doors or from the center center parting doors.

Both side slide and center parting doors can have multiple panels. While there is a single door on the car that travels with it, every stop has a door called a hoistway or hatch door that keeps people from falling into the hoistway when the car is not there. These hatch doors must open and close at the same time that the car doors do.

The car top houses a machine called the door operator. When the car and hatch doors are lined up, a clutch on the back side of the car door slides down or up over pickup rollers on the back side of the hatch doors. The operator then drives the car door open, engaging the pickup rollers and taking the hatch door with it. To close, the operator drives the car door closed, pulling the hatch door along.

When the equipment is adjusted correctly, this is a smooth, unnoticeable process. When there are problems, it is very noticeable. The problems can be evidenced by doors not opening all the way or at all. These parts do not typically get out of alignment by normal use. Rather, misalignment is usually caused by someone forcing the door open or otherwise hitting or vandalizing it. The hatch door has nylon or rubber wheels that run along an overhead track.

If these are worn, the opening and closing of the door can be squeaky or grinding or bumpy. As people continue to erect monumental skyscrapers and more small buildings are made handicap-accessible, elevators will become an even more pervasive element in society.

It is truly one of the most important machines in the modern era, as well as one of the coolest. For more information on elevators, including the elevator technologies of the future, check out the links below.

Sign up for our Newsletter! Mobile Newsletter banner close. Mobile Newsletter chat close. Mobile Newsletter chat dots. Mobile Newsletter chat avatar. Therefore, it simplifies the process of moving in and out of an apartment when needed.

Mattresses, bed frames, tables — they can all fit in the elevator. On top of that, you can fit a whole family in there with the furniture as well.

The eco-bus folding door is installed when space and weight are limited. Because of the way this door is constructed, via its folder opening and reduced dimensions — it does not change the cabin structure or weight of the lift. You can also opt-in for a mechanical release system that works with swing landing doors. Just like any of the other types of doors, the eco-bus folding doors come in a variety of styles.

Such as:. This type of door is usually installed in an industrial segment, where even though space is plentiful — the significant width and height of the door is very critical to the function of the location.

This door allows you to move in and move out any type of large item, even cars in some cases. Now that you have discovered for yourself the types of elevator doors, you are well on your way to deciding which is best for you.

Your email address will not be published. Save my name, email, and website in this browser for the next time I comment. Keep reading to find out more. Seventy percent of all elevator repair calls are for the elevator door operator.

Every time the door opens and closes the parts are worn further. Uncontrolled opening closing, as exists in an analog system, allows the door to simply open and close without any speed and position controls. A closed loop elevator door controller is a microprocessor that controls the precise speed and location of the doors at all times. Analog systems are subject to power fluctuations and pushing by people. The computer is able to sense the precise position and speed of the door much better than a simple mechanical system.