Collapsible window blinds structure

Abstract

A collapible window blinds structure comprises a blind body, a lift cord set, and a head rail assembly wherein the blind body has a fastening portion at the top edge, and limiting hoops evenly spaced and fixed at the rear side surface for the running of lift cords there-through to wind around pulley seats and a positioning pulley unit respectively. The head rail assembly includes multiple connection rods and linking elements flexibly assembled according to the size of a widow frame. Each connection rod has a vertical thru-hole for the registration of a fitting portion of the pulley seats and the positioning pulley unit, and a fastened portion at a vertical side surface for the attachment of the fastening portion of the blind body thereto. Therefore, the head rail assembly and the blind body can be easily stacked and bundled up into smaller volume for convenient carriage and the storage.

1 . A collapsible window blinds structure, comprising a blind body, a lift cord set, and a head rail assembly wherein the blind body has a fastening portion disposed at the top edge thereon, and a plurality of limiting hoops evenly spaced and fixed in vertical lines at the rear side surface thereon; the lift cord set is composed of lift cords, pulley seats and a positioning pulley unit wherein the lift cords are guided through the limiting hoops of the blind body to wind around the pulley seats and the positioning pulley unit and fixed to the bottommost limiting hoops thereof respectively, and the top edges of the pulley seats and the positioning pulley unit are respectively disposed a protrusive fitting portion; the head rail assembly includes a plurality of connection rods and linking elements wherein each connection rod has a thru-hole disposed at the top plane surface cutting vertically downwards through to the bottom surface thereof, and the fitting portion of the pulley seat and the positioning pulley unit thereof can be reciprocally mounted to the thru-hole of the connection rod for location thereby; the connection rod also has a set of coupling holes disposed at both ends for the registration of the linking elements therewith respectively, and a fastened portion defining one vertical side surface thereon for the attachment of the fastening portion of the blind body thereto; therefore, via the collapsible design of the window blinds wherein the lift cord set guiding through the blind body is detachably mounted to the head rail assembly that can also be conveniently dismantled into separate pieces of the connection rods and linking elements, the head rail assembly and the blind body can be conveniently stacked and bundled up into smaller volume, facilitating the carriage and the storage the window blind thereof as well as saving the material of package to achieve the economical efficiency thereof.  
     
     
         2 . The collapsible window blinds structure as claimed in  claim 1  wherein the fastening portion of the blind body can be made up of hook-side fasteners.  
     
     
         3 . The collapsible window blinds structure as claimed in  claim 1  wherein the protrusive fitting portion of the pulley seats and the positioning pulley unit can be shaped in a stepwise configuration made up of a narrower guidance section and a wider abutted section thereof.  
     
     
         4 . The collapsible window blinds structure as claimed in  claim 1  wherein the top side of the fitting portion of each pulley seat and the positioning pulley unit has a hanging element attached thereto.  
     
     
         5 . The collapsible window blinds structure as claimed in  claim 1  wherein the connection rod thereof can be shaped in cylindrical configuration.  
     
     
         6 . The collapsible window blinds structure as claimed in  claim 1  wherein the connection rod thereof can also be shaped in rectangular configuration.  
     
     
         7 . The collapsible window blinds structure as claimed in  claim 1  wherein the thru-hole of the connection rod can be made in a rectangular shape correspondingly matched to the protrusive fitting portion of the pulley seats and the positioning pulley unit thereof.  
     
     
         8 . The collapsible window blinds structure as claimed in  claim 1  wherein the interior of the connection rod can be in a hollow-like configuration.  
     
     
         9 . The collapsible window blinds structure as claimed in  claim 1  wherein the fastened portion of the connection rod can be made up of loop-side fasteners.  
     
     
         10 . The collapsible window blinds structure as claimed in  claim 1  wherein both lateral end edges of the connection rod can be defined by a plane smooth abutment facet thereon respectively.  
     
     
         11 . The collapsible window blinds structure as claimed in  claim 1  wherein the linking element is identically shaped in column-like configuration to fit to the coupling hole of the connection rod thereby.  
     
     
         12 . The collapsible window blinds structure as claimed in  claim 1  wherein both end edges of the linking element can be defined by an arcuate guiding facet thereon respectively.  
     
     
         13 . The collapsible window blinds structure as claimed in  claim 1  wherein the amount of the lift cords, the pulley seats, and the positioning pulley unit of the lift cord set thereof can be flexibly increased or reduced, depending on the position of the limiting hoops of the blind body.  
     
     
         14 . The collapsible window blinds structure as claimed in  claim 1  wherein the coupling holes of the connection rod and the linking element can also be identically shaped in rectangular configuration to correspondingly fit to each other, permitting each connection rod to be restrained by the engaged linking element for secure positioning thereby.  
     
     
         15 . The collapsible window blinds structure as claimed in  claim 1  wherein the guiding facet defining both end edges of the linking element can also be made in invert-cornered shape.  
     
     
         16 . The collapsible window blinds structure as claimed in  claim 1  wherein the coupling holes of the connection rod and the linking element thereof can also have screw-threaded sections disposed thereon for secure registration to each other thereby.  
     
     
         17 . The collapsible window blinds structure as claimed in  claim 1  wherein each coupling hole of the connection rod can also have a stop seat protruding at the inner wall thereon for the abutment of the end surface of the linking element thereby, permitting both end edges of the linking element to evenly mount to the coupling holes of the connection rod therein so as to ensure an accurate assembly thereby.