Height-adjustable canopy leg

Abstract

In some embodiments, a canopy structure comprises a plurality of support members, each comprising a first leg and a second leg telescopically slideable within the first leg to infinitely adjust a height of the canopy structure. The canopy structure can comprise a plurality of eaves comprising scissor-jack members moveable between an extended position and a collapsed position. The canopy structure can comprise a plurality of locking members. The locking members can be coupled to the first legs. The locking members can be adjustable between a locked and an unlocked position. The locking members can be configured to apply a radial inward force received by an area of the second legs when the locking members are in the locked position.

What is claimed is: 
     
         1 . A canopy structure comprising:
 a plurality of support members, each of the plurality of support members comprising a first leg and a second leg, the second leg of each of the plurality of support members telescopically slideable within the first leg of each of the plurality of support members to adjust a height of the canopy structure;   a plurality of eaves, each of the plurality of eaves coupled to a top end of at least one of the plurality of support members, each of the plurality of eaves comprising at least one scissor-jack member moveable between an extended position and a collapsed position;   a plurality of locking members, each one of the plurality of locking members coupled to the first leg of a respective one of the plurality of support members, each of the plurality of locking members comprising:
 a locking lever comprising a handle portion and a cam portion, the locking lever moveable between an unlocked position and a locked position; and 
 a friction member engageable with the cam portion of the locking lever, wherein the friction member is configured to apply a force to an outer surface of the second leg of the one of the plurality of support members when the locking lever is in the locked position. 
   
     
     
         2 . The canopy structure of  claim 1 , wherein the friction member is configured to apply sufficient force to support the canopy structure at a fixed height. 
     
     
         3 . The canopy structure of  claim 1 , the first leg of the one of the plurality of support members further comprising a window, wherein the friction member extends through the window. 
     
     
         4 . The canopy structure of  claim 1 , wherein an area of the second leg of the one of the plurality of support members receiving the force is limited to one side of the second leg. 
     
     
         5 . The canopy structure of  claim 1 , wherein the plurality of locking members is configured to lock the first leg and second leg of each of the plurality of support members at any adjustable height. 
     
     
         6 . The canopy structure of  claim 1 , wherein the first leg and the second leg each have a generally trapezoidal cross-sectional shape. 
     
     
         7 . A canopy structure comprising:
 at least one support member, the support member comprising a first leg and a second leg, the second leg telescopically slideable within the first leg to adjust a height of the canopy structure;   an upper frame comprising at least one eave coupled to an upper end of the support member, the eave comprising at least one scissor-jack member moveable between an extended position and a collapsed position; and   a lock coupled to the first leg, wherein the lock is adjustable between a locked and an unlocked position, wherein the lock is configured to apply a retaining force to an outer surface of the second leg when the lock is in the locked position to secure the first and second legs in a desired position relative to one another.   
     
     
         8 . The canopy structure of  claim 7 , wherein the lock is configured to apply a sufficient radially-inward retaining force to support the canopy structure at a fixed height. 
     
     
         9 . The canopy structure of  claim 7 , the first leg further comprising a window, wherein a portion of the lock extends through the window. 
     
     
         10 . The canopy structure of  claim 7 , wherein the area of the second leg receiving the retaining force is located on a single side of the second leg.