发明名称 |
Suspension system for a cordless window covering |
摘要 |
A suspension system for a window covering that eliminates the use of pull cords is provided. The suspension system includes a control module having a winding drum and a spring disposed about an axle. A friction member or reaction member is also provided to offset difference in the force exerted by the spring on a suspension cord versus the weight of the window covering member.
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申请公布号 |
US2011259535(A1) |
申请公布日期 |
2011.10.27 |
申请号 |
US201113135023 |
申请日期 |
2011.06.23 |
申请人 |
YU FU-LAI;HUANG CHIN-TIEN |
发明人 |
YU FU-LAI;HUANG CHIN-TIEN |
分类号 |
A47H5/02;A47H1/03 |
主分类号 |
A47H5/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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