Shade roller capable of bearing heavy load

Details Shade roller capable of bearing heavy load Shade roller capable of bearing heavy load

2008-06-17

2008-06-17

Lin, Samuel S. (Department: 3634)

Flexible or portable closure, partition, or panel

Roll type

With rotating means

C160S323100

Reexamination Certificate

active

07387150

ABSTRACT:
A shade roller has a seat, a loop hooked onto the seat, a side cover, a planet wheel engaged with the loop, a chain-retaining wheel secured in the side cover, a driving wheel engaged with the planet wheel, a beaded chain, and a fixing block engaged with the driving wheel. When the beaded chain is pulled, the planet wheel revolves around a fixing pin, and causes the driving wheel and the fixing block to revolve together, whereby a curtain can be raised or lowered.

REFERENCES:
patent: 4372432 (1983-02-01), Waine et al.
patent: 6164428 (2000-12-01), Berman et al.
patent: 6173825 (2001-01-01), Liu
patent: 6739373 (2004-05-01), Liu et al.
patent: 6843302 (2005-01-01), Nijs
patent: 2006/0025270 (2006-02-01), van de Geer et al.
patent: 2006/0084547 (2006-04-01), Dill et al.

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