Roman shade having shade cloth adjusting function

Abstract

A roman shade includes a headrail, a plurality of juxtaposed shade cloths mounted on the headrail, at least one hanging cord extended from the headrail and connected to selective ones of the shade cloths, and at least one adjusting cord extended from the headrail and connected to selective ones of the shade cloths. Thus, the selective shade cloths connected by the adjusting cord are movable to overlap or partially overlap the selective shade cloths connected by the hanging cord, thereby forming a plurality of openings between the shade cloths to allow passage of the solar rays, thereby greatly enhancing the indoor lightness.

1 . A roman shade, comprising: 
 a headrail;    a plurality of juxtaposed shade cloths mounted on the headrail;    at least one hanging cord extended from the headrail and connected to selective ones of the shade cloths;    at least one adjusting cord extended from the headrail and connected to selective ones of the shade cloths.    
     
     
         2 . The roman shade in accordance with  claim 1 , wherein the selective shade cloths connected by the hanging cord and the selective shade cloths connected by the adjusting cord are arranged in a staggered manner.  
     
     
         3 . The roman shade in accordance with  claim 1 , wherein the adjusting cord is movable relative to the hanging cord to adjust a distance between the adjusting cord and the hanging cord.  
     
     
         4 . The roman shade in accordance with  claim 3 , wherein the selective shade cloths connected by the adjusting cord are driven by the adjusting cord to move relative to the selective shade cloths connected by the hanging cord so as to adjust a distance between the selective shade cloths connected by the adjusting cord and the selective shade cloths connected by the hanging cord.  
     
     
         5 . The roman shade in accordance with  claim 1 , further comprising at least one lift cord extended through each of the shade cloths and secured to a lowermost one of the shade cloths to move the shade cloths upward and downward.  
     
     
         6 . The roman shade in accordance with  claim 5 , wherein each of the shade cloths is provided with at least one snap ring to allow passage of the hanging cord, the adjusting cord and the lift cord.  
     
     
         7 . The roman shade in accordance with  claim 1 , wherein the adjusting cord is positioned by an adjusting cord lock to control movement of the adjusting cord.  
     
     
         8 . The roman shade in accordance with  claim 1 , wherein the selective shade cloths connected by the adjusting cord are movable to overlap or partially overlap the selective shade cloths connected by the hanging cord, thereby forming a plurality of openings between the shade cloths.  
     
     
         9 . The roman shade in accordance with  claim 8 , wherein each of the openings between the shade cloths has an adjustable distance that is adjusted by movement of the adjusting cord so as to adjust an optical permeability of the shade cloths and to change an outer appearance of the shade cloths.  
     
     
         10 . The roman shade in accordance with  claim 1 , further comprising at least one secondary adjusting cord extended from the headrail and connected to selective ones of the shade cloths.  
     
     
         11 . The roman shade in accordance with  claim 10 , wherein the selective shade cloths connected by the secondary adjusting cord are movable relative to the selective shade cloths connected by the hanging cord and the selective shade cloths connected by the adjusting cord to overlap or partially overlap the selective shade cloths connected by the hanging cord and the selective shade cloths connected by the adjusting cord.  
     
     
         12 . The roman shade in accordance with  claim 10 , wherein the secondary adjusting cord is positioned by an adjusting cord lock to control movement of the secondary adjusting cord.  
     
     
         13 . The roman shade in accordance with  claim 1 , further comprising a motorized winding mechanism mounted on the headrail and connected to the adjusting cord to wind and scroll the adjusting cord.  
     
     
         14 . The roman shade in accordance with  claim 5 , further comprising a motorized winding mechanism mounted on the headrail and connected to the lift cord to wind and scroll the lift cord.  
     
     
         15 . The roman shade in accordance with  claim 1 , further comprising at least one local-zone lift cord extended through selective ones of the shade cloths and secured to a lowermost one of the selective shade cloths to move the selective shade cloths upward and downward.  
     
     
         16 . The roman shade in accordance with  claim 15 , wherein the selective shade cloths connected by the local-zone lift cord are located at a mediate portion of all of the shade cloths so that the shade cloths have the optimum optical permeability.  
     
     
         17 . The roman shade in accordance with  claim 15 , wherein the local-zone lift cord is extended from the headrail and is positioned by a lock to control movement of the local-zone lift cord.  
     
     
         18 . The roman shade in accordance with  claim 15 , wherein the further comprising a motorized winding mechanism mounted on the headrail and connected to the local-zone lift cord to wind, and scroll the local-zone lift cord.  
     
     
         19 . The roman shade in accordance with  claim 1 , wherein the shade cloths are divided into a plurality of independent zones which are connected by the hanging cord and the adjusting cord respectively and are arranged in a staggered manner.  
     
     
         20 . The roman shade in accordance with  claim 1 , wherein the roman shade comprises a plurality of adjusting cords each connected to selective ones of the shade cloths, so that the selective shade cloths connected by the respective adjusting cords are displaced relative to each other.