FIELD: construction.
SUBSTANCE: method to open and close a door, including transformation of coils electromagnet energy into positive and negative traction forces applied to a door, differing by the fact that the transformation is carried out periodically, forces are started to be formed after exposure at the door, when it moves, and are completed on completion of the movement, besides, the positive force is created during the opening movement of the door, and during the closing one - the negative force is developed.
EFFECT: increased reliability, reduced thermal losses and power inputs in process of a door operation, expansion of functional capabilities and convenience in operation.
4 cl, 5 dwg
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