发明名称 |
CONTROLLING A POSITION OF A FLEXIBLE COVERING |
摘要 |
A control apparatus for positioning and counterbalancing an amount of flexible blind material wound onto or unwound from a rotatable shaft of a windable covering such as a blind. The apparatus includes a main body and a variable torque device, at least partially fitted within the main body, having means of achieving a variable torque to prevent rotation of the shaft due to a variable weight of blind material hanging from the shaft in any position between a wound position and an unwound position of the blind material defining full travel of the windable covering.
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申请公布号 |
US2008210390(A1) |
申请公布日期 |
2008.09.04 |
申请号 |
US20080972859 |
申请日期 |
2008.01.11 |
申请人 |
HUNTER DOUGLAS INDUSTRIES BV |
发明人 |
MCCORMICK GREGORY RADCLIFFE;MOSLEY MICHAEL |
分类号 |
E06B9/56 |
主分类号 |
E06B9/56 |
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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