Patent ID: 7574827
Filing Date: 2009-08-18
Classification: E06B

Abstract:
1. A motorized shutter assembly with a louver blade positioning device, comprising: a module, incorporating a motor and a transmission mechanism, for being mounted on a shutter assembly; a driving shaft, driven by said motor and said transmission mechanism, for driving a louver blade of said shutter to rotate about a predetermined axis of which a circumference thereof provided with at least a positioning portion; a resilient member, provided on said shutter assembly and provided with an inserted element capable of being inserted into said positioning portion such that said inserted element provides a force, and a direction of said force forms a predetermined angle with an axis of said driving shaft; and a guided portion, disposed between said positioning portion and said inserted element, such that when said driving shaft with said positioning portion is rotated and stopped approaching a specific angle, said resilient member therefore forces said driving shaft to rotate to said specific angle through said guided portion; and said force further maintains said positioning portion and said inserted element being positioned relative to one another after approaching said specific angle.