Curtain controlling device
AssigneeIim Holding B.V.
InventorKaj Beetstra
Life of this patent
Estimating the term…
Abstract
A device for moving objects by a driving cable. The device features two cable spools enabled to wind and unwind the cable on both sides. A remote cable pulley is arranged for guiding, at a remote location (X), the cable. The cable spools are arranged to exert, by means of constant torque springs, a cable pretension force in a direction (T) contrary to the unwinding direction (U) of the spools. Electric driving means are provided to be coupled either to the one or to the other cable spool, thus causing the cable to move from the one to the other cable spool or reversely, in order to move said one or more objects connected to the cable, or to be disengaged from both cable spools in order to enable manual operation of said one or more objects connected to the cable.
Claims8
A curtain controlling device for opening and closing curtains, characterized in that it comprises an open loop system with two cable spools, one pulley and one driving cable, wherein said cable is wound up on these spools, each end of said cable being connected to one of said spools;
- said cable spools are arranged to wind and unwind the cable at the relevant cable ends;
- said pulley is a remote cable pulley guiding, at a remote location, the said cable which extends between both spools, wherein the cable spools are arranged to exert a cable pretension force in a direction contrary to the unwinding direction of the spools;
- the device further comprises an electric driving means, wherein said electric driving means comprises an electric motor and electrically actuated coupling means for coupling the motor to the one or the other cable spool and decoupling the motor from the one and from the other cable spool, thus causing the cable to move from the one to the other cable spool or reversely, in order to move said curtain connected to the cable, or to be disengaged from both cable spools in order to enable manual moving said curtain connected to the cable.
Dependencies are inferred from the claim text.