Patent ID: 6957681

Claim:
An embedded type motorized blind device comprising: a power supply section having a motor which is connected to a reducer for reducing rotation force to a predetermined rpm to rotate a shaft; a power transmitting section having a worm gear which is coupled in a lengthwise direction thereof to the shaft of the power supply section, a worm wheel which is positioned on and meshed with the worm gear, a planetary gear which is formed on a side surface of the worm wheel, and a quadrangular shaft which is formed integrally with a front end of the worm gear; a control section having an internal sun gear which is meshed with the planetary gear of the power transmitting section, a pair of swing arms which are securely locked to a center shaft fastened to a bottom wall of the internal sun gear, and a pair of limit switches which are operated by lower ends, respectively, of the swing arms to control raising and lowering of a blind; and an operating section having a plurality of raising and lowering drums one of which is fitted around the quadrangular shaft of the power transmitting section and the others of which are sequentially connected one with another by connection shafts, and tilt adjustment parts which are respectively placed on the raising and lowering drums.