Door System

Abstract

A door system includes a reel, a door interconnect at a first end to the reel for winding and unwinding thereupon and one or more guide channels. The reel is rotatably mounted on a lever which is pivotally mounted to a pivot axis. Thus, the reel can pivot about the pivot axis to ensure that, during operation, a point at which an outer layer of the door engages/disengages with the penultimate door layer remains in the same general location with respect to the guide channels and accordingly, an angle (if any) at which the door enters the guide channels remains constant throughout operation of the door system.

1 . A door system comprising: 
 a reel;    a door connected at a first end to said reel for winding and unwinding upon said reel;    at least one guide channel for guiding an edge of said door; and    at least one lever pivotally mounted at a pivot axis and wherein said reel is rotatably mounted on said lever.    
   
   
       2 . The door system according to  claim 1  wherein said pivot axis is aligned with a plane of movement of said door within said at least one guide channel.  
   
   
       3 . The door system according to  claim 1  including a roller for engaging an outer layer of said door wound upon said reel.  
   
   
       4 . The door system according to  claim 3  including a resilient means biasing said at least one lever about said pivot axis towards said roller.  
   
   
       5 . The door system according to  claim 1  wherein said reel is rotatable about a rotation axis and a radius of an outer surface of said reel from said rotation axis gradually increases from a minimum value to a maximum value with a radial step transition therebetween.  
   
   
       6 . The door system according to  claim 5  wherein said radial step transition on said reel has a height substantially equal to a depth of said door.  
   
   
       7 . A door system comprising: 
 a reel;    a door connected at a first end to said reel for winding and unwinding upon said reel;    a pair of guide channels spaced apart for guiding opposite edges of said door in a plane of movement extending between said guide channels; and    at least one lever pivotally mounted at a pivot axis and wherein said reel is rotatably mounted on said lever.    
   
   
       8 . The door system according to  claim 7  wherein said pivot axis is aligned with said plane of movement of said door.  
   
   
       9 . The door system according to  claim 7  including a roller for engaging an outer layer of said door wound upon said reel.  
   
   
       10 . The door system according to  claim 9  including a resilient means biasing said at least one lever about said pivot axis towards said roller.  
   
   
       11 . The door system according to  claim 7  wherein said reel is rotatable about a rotation axis and a radius of an outer surface of said reel from said rotation axis gradually increases from a minimum value to a maximum value with a radial step transition therebetween.  
   
   
       12 . The door system according to  claim 11  wherein said radial step transition on said reel has a height substantially equal to a depth of said door.  
   
   
       13 . The door system according to  claim 7  including two of said lever, said two levers being mounted at said pivot axis and said reel being rotatably mounted at opposite ends on said two levers.