Sheen World Technology Corporation

Other

Hung-Hao Chen

Ming-Che Tsai

Jong-Wu Chen

A ladder cord fastening seat for a non-pull window blind includes two vertical posts located opposite to each other and an arc bridge. The ladder cord fastening seat is fastened in a top beam through the two vertical posts. Each of the vertical posts has a cord inserting hole for a ladder cord to be inserted therethrough. The arc bridge is used for fastening the ladder cord. The arc bridge connects the two vertical posts in such a way that an accommodation space is defined to accommodate a transmission member located in the top beam.

Ladder cord fastening seat for non-pull window blind

A dual-torsion-spring cord rolling device includes driving and transmission units. The driving unit has first and second torsion spring gears engaged with each other, a first torsion spring connecting the first and second torsion spring gears, a wheel adjacent to the first torsion spring gear, and a second torsion spring connecting the second torsion spring gear and the wheel. The transmission unit has first and second transmission gears rotatable synchronously by the driving of the second torsion spring gear, and two lift transmission cords attached to the first and second transmission gears respectively.

Dual-torsion-spring cord rolling device for window blind without exposed pull cord

An environment-friendly material includes 50 wt % to 70 wt % of inorganic mineral powder, 20 wt % to 45 wt % of polyolefin, and 5 wt % to 15 wt % of auxiliary agent. The inorganic mineral powder contains calcium carbonate; the polyolefin may be linear low density polyethylene, low density polyethylene, medium density polyethylene, high density polyethylene, or polypropylene; and the auxiliary agent may be polyolefin elastomer, maleic anhydride grafted polyolefin elastomer, or maleic anhydride grafted polyethylene. The disclosure also provides a manufacturing method of window covering slat using the environment-friendly material and a window covering slat manufactured by the method.

Growing community of inventors

Taichung, Taiwan

Hung-Hao Chen