摘要 |
This is a roll-up door of the type formed by connected slats in order to form an articulated closure. The invention provides a vertical drive shaft for rolling up the structure of the door, which includes, at its upper and lower horizontal sides, rolling means combined with guide means which extend parallel along the horizontal sides of the opening to be closed. The guide means form, at the roll-up end of the door, individual spirals of identical outline, coaxial with the aforesaid vertical shaft, which promote rolling-up of the door. The invention allows the installation of roll-up doors in places where there is no space to take the traditional upper rolling-up horizontal shaft. <IMAGE>
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