Adjustable height tubular bed frame

Abstract

A bed frame that can be assembled without tools and that may be easily adjusted to provide for more than one mattress height. The frame is formed by side rails having wedges that are inter fit cross rails having receivers to form supporting legs. An extension can be selectively added to or removed from the receivers to change the height of the supporting legs and thus the height of the bed frame. In one option, the cross rails are telescoping in a manner than ensure that a center support associated with a central rail is always positioned in the middle of the frame regardless of whether the frame is configured for a narrow or wide mattress. In another option, the middle of bed is supported by a third cross rail having an adjustable height leg formed from a center wedge and removable receiver.

What is claimed is: 
     
         1 . A bed frame, comprising:
 a first side rail;   a first wedge affixed to the first side rail;   a first cross rail;   a first receiver affixed to the first cross rail and including a first pocket formed on a first side that inter fits with the first wedge of the side rail and a second pocket formed on a second side; and   a first extension shaped to inter fit with the second pocket of the first receiver and moveable between a first position, wherein the first extension is coupled to the first receiver, and a second position, where the first extension is decoupled from the first receiver.   
     
     
         2 . The bed frame of  claim 1 , further comprising:
 a second wedge affixed to the side rail, wherein the first wedge is affixed to a first end of the side rail and the second wedge is affixed to a second end of the side rail;   a second cross rail;   a second receiver affixed to the second cross rail; and   wherein the first receiver and the second receiver are positioned on the first cross rail and the second cross rail so that the first cross rail and the second cross rail extend in parallel to each other and perpendicularly to the side rail.   
     
     
         3 . The bed frame of  claim 2 , further comprising a second side rail coupled to the first cross rail and the second cross rail by a third wedge that inter fits with a third receiver affixed to the first cross rail and a fourth wedge that inter fits with a fourth receiver affixed to the second cross rail, respectively. 
     
     
         4 . The bed frame of  claim 3 , further comprising a center rail extending in parallel to the first side rail and the second side rail. 
     
     
         5 . The bed frame of  claim 4 , wherein the center rail includes a fifth receiver positioned at one end and a sixth receiving positioned at an opposing end that inter fits with a fifth wedge affixed to a first intermediate portion of the first cross rail and a sixth wedge affixed to a second intermediate portion of the second cross rail. 
     
     
         6 . The bed frame of  claim 5 , wherein the fifth wedge and the sixth wedge are each positioned at a midpoint of the first cross rail and the second cross rail, respectively. 
     
     
         7 . The bed frame of  claim 6 , wherein the first cross rail comprises a first center tube affixed to the fifth wedge, a first end tube coupled to the first receiver, and a second end tube coupled to the third receiver, wherein the first end tube and the second end tube are positioned in sliding engagement with the first center tube so that the first end tube and the second end tube can telescope relative to the first center tube. 
     
     
         8 . The bed frame of  claim 7 , wherein the first end tube and the second end tube include a first button and a second button, respectively, that are each spring loaded to engage with one of a series of holes formed in a first set of predetermined locations along the first center tube so that the first cross rail can be extended or retracted into one of a first plurality of predetermined lengths. 
     
     
         9 . The bed frame of  claim 8 , wherein the second cross rail comprises a second center tube affixed to the sixth wedge, a third end tube coupled to the second receiver, and a fourth end tube coupled to the fourth receiver, wherein the third end tube and the fourth end tube are positioned in sliding engagement with the second center tube so that the third end tube and the fourth end tube can telescope relative to the second center tube. 
     
     
         10 . The bed frame of  claim 9 , wherein the third end tube and the fourth end tube each include a third button and a fourth button, respectively, for engagement with one of a second series of holes formed in a second set of predetermined locations along the second center tube so that the second cross rail can be extended or retracted into one of a second plurality of predetermined lengths that correspond to the first plurality of predetermined lengths. 
     
     
         11 . The bed frame of  claim 3 , further comprising a third cross rail extending between the first side rail and the second side rail. 
     
     
         12 . The bed frame of  claim 11 , wherein the third cross rail is coupled to the first side rail and the second side rail by a fifth receiver positioned at one end of the third cross rail that inter fits with the fifth wedge affixed to the first side rail and a sixth receiver positioned at an opposing end of the third cross rail that inter fits with a sixth wedge affixed to the second side rail. 
     
     
         13 . The bed frame of  claim 12 , further comprising a fifth extension shaped to inter fit with the fifth wedge and a sixth extension shaped to inter fit with the sixth wedge, wherein the fifth extension and the sixth extension can be coupled or decoupled from the fifth wedge and the sixth wedge, respectively. 
     
     
         14 . The bed frame of  claim 13 , further comprising a seventh wedge affixed to the third cross rail. 
     
     
         15 . The bed frame of  claim 14 , further comprising a seventh extension shaped to inter fit with the seventh wedge and movable from being coupled to the seventh wedge to being decoupled from the seventh wedge.