Patent ID: 7387150
Filing Date: 2008-06-17
Classification: E06B

Abstract:
1. A shade roller capable of bearing a heavy load comprising a seat with a socket, a loop attached to the seat and comprised of a side cover mounted around the loop and having a chamber and an opening that sleeves over the first flange of the loop; a planet wheel connected to the loop, held inside the chamber in the side cover and having a chain-retaining wheel connected to the planet wheel and having a driving wheel connected to the planet wheel and the chain-retaining wheel and having a second hole, a second flange held inside the fixing slot in the chain-retaining wheel, a round cam held inside the through slot in the chain-retaining wheel and a second inner tooth-shaped hole defined in a side facing the planet wheel and partially engaging with the second tooth member in the planet wheel; a fixing block with an orifice attached to the driving wheel; a fixing pin extending through the plate, the side cover, the planet wheel, the chain retaining wheel, the driving wheel, and fastened on the fixing block; a supporter provided between the inner wall of the aperture of the planet wheel and the fixing pin; and a beaded chain connected to and held in the bead channel in the chain-retaining wheel.