Inclined elevator
Inclined elevator
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Inclined elevator

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Inclined elevator

An inclined elevator or inclined lift is a form of cable railway that hauls rail cars up a steep gradient.

An inclined elevator consists of one or two inclined tracks on a slope with a single car on each carrying payload. In the case of a two-track configuration each car operates in a shuttle principle: it moves up and down on its own track independently of the other car. A car is either winched up to the station on the top of the incline where the cable is collected on a winch drum. Alternatively a car is balanced by a counterweight moving along the track in the opposite direction, quite similar to an ordinary lift.

Unlike a standard elevator, it can go up tilted grades. It can be used for both residential and commercial purposes. The purpose of inclined elevators is to provide accessibility to steep hillsides and inclines at minimal effort to the user. An inclined elevator is a form of cable railway.

Users with mobility and disability challenges often use an incline platform lift to climb staircases in their home with their mobility scooter or motorized wheelchair. Outdoor inclined elevators are used to access steep hillside property where stairs are not a preferred option for conveying passengers or loads. Inclined elevators can also be used to move equipment and materials to hard to reach elevated locations for industrial or construction purposes.

Within the European Union inclined lifts are subject to EU lift regulations part 22 EN 81-22:2014 which defines some standard limits for their implementations: track inclination is between 15° and 75°; maximum cabin capacity is 100 people (7.500 kg); maximum speed of 4 m/s; the track is straight in the horizontal plane. These limits are not compulsory, though, and if not followed by an installation—for example, the path is curved—some unspecified additional risk analysis is required to be conducted.

Inclined elevator design is based on the same basic technology as conventional, vertical elevator. In general standard elevator equipment can be adapted for systems with an inclines up 10° from vertical, while an incline with more than 20° from vertical will require some additional adaptation.

For example, inclined elevators used in the Stockholm metro were using standard "vertical" elevator cabins mounted on wheeled platforms adapted to 30° incline. The cabins are balanced by a counterweight and moved by a conventional elevator hoist and cables along the guide rails.

While some inclined elevators are outdoor systems are designed to move people and goods along steep gradients, others are used in buildings for smoother access.

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