Drive for doors, especially garage doors

The invention relates to the hole of the garage door guide pipe, arranged at the transverse instances is arranged, the door of the roller door is part, and a is guided on the rail of fixed position; With a comprising at least one motor and a drive gear sleeve. According to the invention, wherein the two sides of the pulley mixing positive and negative directions of the axis, and ropes' two free ends by winding of each wheel mixing. The pulling end AND door roller coordinating role can be opened or closed to the rotation of the mixing of the access door.