These doors are normally opened or closed manually using hands although some of them close automatically.
Vertical opening elevator doors.
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However most action in the door s operation is mechanical.
The frank manual vertical lift door is used in applications where there is minimum side room or when several door openings are in close proximity such as on warehouse loading docks.
Freight doors are the vertical bi parting type with the top half going up and the bottom half going down.
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The space required on either side of the elevator shaft is reduced to a minimum 13 inches 330 mm in comparison with horizontal sliding door alternative where the panels travel to the side s of each opening.
Another type commonly seen in freight elevators is the vertical bi parting style where the doors go up instead of side to side sort of like a garage door.
Of course there is an electric impulse from the elevator controller the brain of the elevator that causes an elevator door to open and close when the car is safely at the proper floor.
This requires significantly more space than vertical sliding to accommodate the panels.
That door is opening once again and this time it s opening for you the elevator stops once more.
Occasionally you ll see 2 or 3 speed center opening doors which are rare but are used in heavy duty freight and vehicle elevators.
With the door fully open the bottom door serves as a load supporting sill that allows loads to be moved in and out of the car.
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One stormy night long ago five people stepped through the door of an elevator and into a nightmare.
Manual doors are normally opened and closed manually by hand and automatic doors are the standard type of doors found in modern days elevators usually powered by a door operator.
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Suitable for interior and exterior applications in coolers freezers and industrial buildings.
The operator and motor is located on top of the car.
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The elevator doors close and the car continues its ascent.
These can have up to six door panels.