
The sliding door is a type of door that opens horizontally by sliding, usually parallel to the wall. Sliding doors can be mounted either above the track below or suspended from the tracks above and some types 'disappear' on the wall when sliding open. There are several types of sliding doors such as pocket doors, Arcadia doors, and door shortcuts. Sliding doors are generally used as shower doors, glass doors, screen doors, cabinet doors or vans.
Video Sliding door
History
Sliding doors are used as early as the first century AD in Roman houses as evidenced by archaeological finds in Pompeii, Italy.
Maps Sliding door
Slide the sliding door
The mechanism used to operate the sliding door is called sliding door gear. There are two standard types, upper or lower rolling systems. Both of these types do not have a perfect seal. To reduce air and smoke insulation and sound insulation, a brush seal is usually used.
Top hanging door
The most popular 'top hung' system is used. The door is hung by two trolley hangers at the top of the door that runs on a hidden track; all loads are taken by the hanger, making the door easier to move.
At each end is a track stop to absorb any collisions made if the door is slammed and to hold the door in open or closed position. All hanging door sliding systems are hung up having a maximum weight limit per trolley hanger. When determining the appropriate sliding system, door weight estimates are an important factor, although most sliding door suppliers can suggest door weights
When the door is hung on top of two points, the door also needs to roller track/stay down so as not to swing sideways. The most common type is called 'clear threshold guiding', a fixed-end plastic guide with a width of 60mm mounted under the door at the midpoint of its run. A groove is cut to the bottom of the door that extends above this guide, preventing the lateral movement of the door. With glass panel doors running through the guides as illustrated. Since the door is always involved in the guide, when the door is open the floor is clear, then the 'clear threshold'
Some examples of freely sliding hanging sliding cabinets can be found on some websites. The mechanism is safe, and the bottom of the door is held on the track. The roll also has a safety lock that prevents the door from jumping off the tracks. Additional features such as soft cover or damper can be added to further enhance the taste and usefulness of this product.
Slide gear underneath
Sometimes the top hung system can not be used, because the weight of the door can not be supported from above; in which case the bottom rolling system is recommended.
The bottom rolling system consists of two rolls (sometimes called sheave) at the bottom of the door that runs on the track and two guides at the top running on the guide channel. Since all the weight of the door is concentrated on two lower wheels, more force is required to move the door than on the top system. (specify a reference to this statement)
Tooth lift-and-slide doors
Sliding doors lifted from the frame when opening and closing are called elevator-and-sliding doors. This allows for a better seal, with less draft and better sound.

Automatic sliding door
Some sliding doors contain a motor and an activation system to open it. This is called the sliding door operator . Automatic sliding doors are usually found at office and shop entrances. These doors contain a magnetic locking mechanism that automatically opens during emergencies.

Usage
The advantage of a sliding door is that almost no space is required to open the door, they are relatively easy to automate. This mechanism is also safe, because it can not be lifted from the hinge. Sliding doors are usually found as store, hotel and office entrances, elevators, patio doors, cabinet doors and room dividers. The transport industry also uses sliding doors in vans, trains and metro. Volkswagen used these doors in the Volkswagen Fridolin produced between 1964 and 1974.

See also
- Shoji

References

External links
Media related to Sliding door in Wikimedia Commons
Source of the article : Wikipedia