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Priority to ES1971175271UpriorityCriticalpatent/ES175271Y/en
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Publication of ES175271YpublicationCriticalpatent/ES175271Y/en
Operating, Guiding And Securing Of Roll- Type Closing Members
(AREA)
Abstract
Drum for winding blinds, characterized in that it is constituted by a tubular body coupled to respective end capsules, both of polygonal profile, whose capsules have a closed external base provided integrally with a central pin in axial direction, whose pin forms an exterior pivot as an element of coupling for the rotary drive, and an inner shaft that penetrates the tubular body and ends fixed perpendicularly to a plate of contour equal to the inner profile of the same body, so that the twisting effect that is generated in said body in the phases of actuation of the blind from one of its ends, is counteracted by the plates in question that impart rigidity to said body. (Machine-translation by Google Translate, not legally binding)
ES1971175271U1971-12-141971-12-14
DRUM FOR ROLLING UP BLINDS.
ExpiredES175271Y
(en)