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The operator is placed in the space above the sliding door. An electric motor, geared down to get a lower speed and a higher torque, drives a pulley at one end of a belt. The door is clamped to the belt. To open the door, the motor turns the pulley, which in turn turns the belt, which in turn drags the door. To close the door, the reverse occurs.
In 1954, Dee Horton and Lew Hewitt invented the first sliding automatic door. The automatic door used a mat actuator. In 1960, they co-founded Horton Automatics Inc and placed the first commercial automatic sliding door on the market. [5] With the invention of the Gunn diode, microwave motion detectors became common in automatic doors in the ...
A door closer is a mechanical device that regulates the speed and action of a door ’s swing. [1] Manual closers store the force used to open the door in some type of spring and reuse it to close the door. Automatic types use electricity to regulate door swing behavior. Door closers can be linked to a building's fire and security alarm systems.
1954 Kaiser Darrin with its sliding pocket door opened. Sliding doors are common on minivans, leisure activity vehicles, light commercial vehicles and minibuses. A few passenger cars have notably also been equipped with sliding doors, such as the Peugeot 1007, the Suzuki Alto Slide Slim, the BMW Z1 and the 1954 Kaiser Darrin. Many concept cars ...
It was also the first Toyota minivan to have one-touch sliding doors. In October 2014, the Esquire was launched, which was marketed as a more luxurious version of the Noah. The monthly sales target was set at 3,400 units for Noah, which was sold at Toyota Corolla Store dealership chain and 4,600 units for Voxy sold at Netz Store dealerships.
Some are built on top of a standard door closer. To open the door, the operator forces the closer in the opening direction. Then, the closer closes the door. The user may open the door manually, using just the door closer. In case of power failure while the door is open, the closer itself closes the door. Some are built without a door closer.