Cable maintaining device for curtains

Abstract

A curtain cable maintaining device includes a cable maintaining unit having a bottom board with a guide hole defined therethrough. A pulley set is connected on the bottom board and has a first pulley and a second pulley. The cable is wrapped to the scrolling unit, the mandrel unit, the first pulley and the second pulley, and extends through the guide hole. The cable does not contact the periphery of the guide hole so as to reduce the friction with the guide hole and the cable does not hook with the mandrel unit when moving.

What is claimed is: 
     
         1 . A curtain cable maintaining device comprising:
 a cable maintaining unit having a bottom board, a pulley set connected on the bottom board, the pulley set having a first pulley and a second pulley, the first pulley having a first groove and the second pulley having a second groove, the first and second pulleys located adjacent to each other, the first groove located corresponding to the second groove, a guide hole defined through the bottom board and located corresponding to the second pulley, two fixing holes respectively defined in two ends of the bottom board.   
     
     
         2 . The curtain maintaining device as claimed in  claim 1 , wherein the cable maintaining unit has a cover fixed on top thereof. 
     
     
         3 . A curtain cable maintaining device comprising:
 at least two cable maintaining units and each cable maintaining unit having a bottom board, a pulley set connected on the bottom board, the pulley set having a first pulley and a second pulley, the first pulley having a first groove and the second pulley having a second groove, the first and second pulleys located adjacent to each other, the first groove located corresponding to the second groove, a guide hole defined through the bottom board and located corresponding to the second pulley, two fixing holes respectively defined in two ends of the bottom board;   a head box having a space defined therein and multiple through holes defined through a bottom plate thereof, the at least two cable maintaining units fixed to the fixing holes of the bottom plate of the head box, the guide holes of the at least two cable maintaining units located corresponding to the through holes, and   at least one controlling unit having at least one mandrel unit, at least two scrolling units and multiple cables, the at least one mandrel unit fixed at a middle portion of the space, the at least two scrolling units fixed at two ends of the space, the at least two cable maintaining units located between the at least one mandrel unit and the at least two scrolling units, the cables respectively wrapped to the at least one mandrel unit, the at least two scrolling units, the first grooves and the second grooves, the cables extending through the guide holes of the bottom board.   
     
     
         4 . The curtain maintaining device as claimed in  claim 3 , wherein each of the at least two cable maintaining units has a cover fixed on top thereof. 
     
     
         5 . A curtain cable maintaining device comprising:
 at least two cable maintaining units and each cable maintaining unit having a bottom board, a pulley set connected on the bottom board, the pulley set having a first pulley and a second pulley, the first pulley having a first groove and the second pulley having a second groove, the first and second pulleys located adjacent to each other, the first groove located corresponding to the second groove, a guide hole defined through the bottom board and located corresponding to the second pulley, two fixing holes respectively defined in two ends of the bottom board;   a head box having a space defined therein and multiple through holes defined through a bottom plate of the head box, the at least two cable maintaining units fixed at the fixing holes of the bottom plate of the head box, the guide holes of the at least two cable maintaining units located corresponding to the through holes, and   at least one controlling unit having at least one mandrel unit, a scrolling unit and multiple cables, the at least one mandrel unit fixed at a middle portion of the space, the scrolling units fixed at one end of the space, the at least two cable maintaining units located between the at least one mandrel unit and the scrolling unit, the cables respectively wrapped to the at least one mandrel unit, the scrolling unit, the first grooves and the second grooves, the cables extending through the guide holes of the bottom board.   
     
     
         6 . The curtain maintaining device as claimed in  claim 5 , wherein each of the at least two cable maintaining units has a cover fixed on top thereof.