| 摘要 |
The present invention relates to a unit and a device for the automatic opening and closing of a door. The unit according to the invention comprises a device (10) and a slave device to be placed on the lower part of a door (12). According to the invention, the master device comprises a wheel (14) kept bearing (15) on the ground and driven directly by a motor (13) fed (16) and controlled (21, 17) by means accommodated under the same housing. The slave device does not comprise feed and control means (17, 21) and receives its orders from the master device. Advantageously, in order to control the opening (closing) of a single-leaf or multi-leaf door, the wheel (14) is placed perpendicularly to the door and, to control the opening (closing) of a sliding door, the wheel (14) is placed parallel to the door. <IMAGE> |
