Persiana celular que comprende una pluralidad de estructuras de celdas cerradas secuenciales e interconectadas que se extienden en direccion longitudinal, las estructuras de celda que tienen una posicion colpasada cuando la persiana se retrae, un sistema de elevacion configurado para jalar verticalmente dichas estructuras de celdas de una configuracion expandida en una configuracion contractil.

摘要

An expandable and contractable shade assembly includes a plurality of closed cell structures aligned vertically one above another with juncture lines defined between adjacent structures. Each closed cell structure includes a front face and a separate back face. The front face and the back face are offset from one another in relation to a vertical axis. In one embodiment, for instance, the front face of a higher cell is connected to both the front face and back face of a lower cell, while the back face of the higher cell is only connected to the back face of the lower cell. In an alternative embodiment, the front face of a higher cell is only connected to the front face of a lower cell, while the back face of the higher cell is connected to both the front face and the back face of the lower cell. The above configuration can increase strength and dimensional stability of the interconnected cells.