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Mecanismo para subida y bajada de puertas arrollables y basculantes, caracterizado porque consta de un soporte base, dotado de espárragos para su fijación, en el cual se monta un electromotor, de marcha reversible, que, mediante transmisión y a través de un reductor de velocidad, acciona a una varilla cilíndrica, roscada en cuyo extremo libre se dispone un grupo cónico, o de sinfín para mando del tambor de arrollamiento, poseyendo medios de limitación de finales de carrera, de disparo, de mando y de regulación.
ES1973191177U1973-05-041973-05-04Mecanismo para subida y bajada de puertas arrollables y basculantes.
ExpiredES191177Y
(es)
Systeme de commande a couple constant et compensation de l'inertie par regulation du courant d'induit et affaiblissement de l'excitation d'un moteur a courant continu