Patent ID: 7128122

Claim:
A Venetian blind, comprising a main body, a transmission mechanism, a cover and a motorized drive mechanism, wherein: the main body includes a headrail, a plurality of slats mounted on the headrail, and a roller rotatably mounted in the headrail and connected to the slats for lifting and lowering the slats by rotation of the roller, with the headrail having a substantially U-shaped cross-section including a first side, a second side, and a bottom extending between the first and second sides, with the headrail including an open end, with the roller located intermediate and parallel to the first and second sides; the transmission mechanism is mounted on the main body and includes a support slideably mounted in the open end and between the first and second sides of the headrail of the main body, with a shaft tube rotatably mounted in the support and secured on the roller of the main body for rotating the roller of the main body, with a driven wheel secured on an end of the shaft tube for rotating the shaft tube and protruded outward from the support; the motorized drive mechanism is attached to the first side of the headrail of the main body in parallel with the shaft tube of the transmission mechanism, with the motorized drive mechanism including an attachment bracket having a substantially U-shaped cross-section including a first side, a second side, and a bottom extending between the first and second sides, with the attachment bracket including an open end, with the motorized drive mechanism further including a motor mounted between the first and second sides of the attachment bracket, a drive wheel mounted on and rotated by the motor, and a driving member mounted between the drive wheel and the driven wheel of the transmission mechanism so that the driven wheel of the transmission mechanism is rotated by the drive wheel of the motorized drive mechanism, with the first side of the attachment bracket being removeably slideably attached and parallel to the first side of the headrail; and the cover is removably mounted to the support of the transmission mechanism and to the motorized drive mechanism and to cover the drive wheel, the driven wheel, and the driving member.