Patent ID: 8264185

Claim:
An apparatus for electrically rotating a shutter's axis in order to fold and unfold said shutter, said apparatus comprising: an electrical motor; a gear that is driven by said motor; one of a rotatable adapting unit and a flange to which said shutter's axis is connected, wherein said rotatable adapting unit is connected to said gear; two switches provided at both ends of a rail, each of said switches stopping said motor when depressed, wherein an element is installed in said rail which is movable along said rail, said element depressing one of said switches when arriving to an end of said rail; a circular plate with a spiral tunnel grooved into its surface, wherein said circular plate is joined to one of said rotatable adapting unit and said flange; and a pin installed on said element and settled in said grooved spiral tunnel, said pin moving said element along said rail according to a rotation of said plate.