发明授权
US09359814B2 Systems for maintaining window covers 有权
维护窗户的系统

Systems for maintaining window covers
摘要:
A spring drive system includes a housing and an extendable window cover that is coupled to the housing. The window cover has at least one lift cord that is employed to retract the window cover. The system also includes a first cord spool and a spring drive system having at least one spring having a storage end that is operably coupled to a storage spool and an output end that is operably coupled to an output spool. The lift cord extends from the first cord spool to the window cover, and the spring drive system has an output that controls tension on the first cord spool and no external hand-operated control cord as an input used to raise and lower the window cover.
公开/授权文献
信息查询
IPC分类:
E 固定建筑物
E06 一般门、窗、百叶窗或卷辊遮帘;梯子
E06B 在建筑物、车辆、围栏或类似围绕物的开口处用的固定式或移动式闭合装置,例如,门、窗、遮帘、栅门(暖房用的遮阳板或百叶窗入A01G9/22;窗帘入A47H;汽车行李箱或保护罩的盖入B62D25/10;天窗入E04B7/18;遮阳、凉篷入E04F10/00)
E06B9/00 用于开口的遮板或保护装置,带或不带有操作或固定用机构;类似构造的闭合物(E06B5/10优先;在边缘部分联接的,用作门或窗的翼扇入E06B3/48;不属于建筑物正常装修的室内门窗的附属设备,例如,窗帘入A47H;作为建筑构件的格栅入E04C2/42;锁及其附件入E05B;翼扇的插销或固接件入E05C;一般翼扇的操作机构入E05F)
E06B9/24 .供防光,尤其是防阳光的屏帘或其他构造;为隐避或显露用的类似屏帘(用于可卷式的闭合装置的操纵、导向或固定的设施或设备入E06B9/56;自由悬挂柔性的屏帘入A47H23/00)
E06B9/26 ..薄板条或类似的遮帘,例如,软百叶帘
E06B9/28 ...用一些横向薄板条,例如,不能升降的(百叶窗或格栅入E06B7/08)
E06B9/30 ....可升降的
E06B9/32 .....其操纵、导向或固定器具(倾斜杆的操纵入E06B9/307)
E06B9/322 ......操纵装置的零件,例如,滑轮、闸、弹簧圆筒、驱动器(有关专门用于或安装供贮存和重复放出及再贮存各种长度的材料的一般设施入B65H75/34)
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