An operating mechanism for a blind or shielding device

An operating mechanism for a blind or shielding device having angularly adjustable and retractable slats 12, said mechanism comprising a first driven element 27 for pivotally adjusting the angular orientation of the slats and a second driven element 30 for transversely moving the slats towards and a...

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Hauptverfasser: DIRK ALEXANDER PLOEG, HERMAN OSKAM
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creator DIRK ALEXANDER PLOEG
HERMAN OSKAM
description An operating mechanism for a blind or shielding device having angularly adjustable and retractable slats 12, said mechanism comprising a first driven element 27 for pivotally adjusting the angular orientation of the slats and a second driven element 30 for transversely moving the slats towards and away from the retracted position, a common actuating member 22 for driving said first and second driven elements, a coupling device 24 directly coupling said first driven element to said common actuating member, a final engagement and lost motion mechanism 28,30 for releasibly engaging said common actuating member to said second driven element and allowing entraining of said second driven element after a predetermined number of revolutions of said actuating member neither of two different rotational senses, the final engagement associated with said lost motion mechanism in each rotational sense inducing a reactive force in an axial direction, said reactive force assisting in declutching of said coupling device.
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subjects DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL
FIXED CONSTRUCTIONS
FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES,FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS,BLINDS, GATES
LADDERS
title An operating mechanism for a blind or shielding device
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