Collapsible sawhorse

Abstract

A support structure has a first leg, a second leg, eg, a second leg, a third leg and a fourth leg. Each of these legs has a top portion, a center portion, and a bottom portion. The first leg includes a first hinge and a first stop. The first hinge connects the first leg center portion and the second leg center portion. The first hinge allows rotation of the second leg with respect to the first leg. The first leg center portion includes the first stop for limiting the rotation of the second leg with respect to the first leg.

1 . A support structure, comprising:
 a first leg, a second leg, a third leg and a fourth leg, wherein each said leg has a top portion, a center portion, and a bottom portion; and   a first hinge and a first stop, said first hinge connecting said first leg center portion and said second leg center portion, wherein said first hinge allows rotation of said second leg with respect to said first leg, wherein said first leg center portion includes said first stop for limiting said rotation of said second leg with respect to said first leg.   
   
   
       2 . A support structure, as recited in  claim 1 , further comprising a second hinge connecting said third leg center portion and said fourth leg center portion, said second hinge allowing rotation of said fourth leg with respect to said third leg. 
   
   
       3 . A support structure, as recited in  claim 2 , wherein said third leg center portion includes a third stop for limiting said rotation of said fourth leg with respect to said third leg. 
   
   
       4 . A support structure, as recited in  claim 2 , further comprising a third hinge located between said top portion of said first leg and said top portion of said third leg. 
   
   
       5 . A support structure, as recited in  claim 4 , further comprising a fourth hinge located between said top portion of said second leg and said top portion of said fourth leg. 
   
   
       6 . A support structure, as recited in  claim 5 , further comprising a bar extending between said top portions of said first and second legs, wherein pressure of said top portions of said first leg and said second leg pressing against said bar limits rotation of said first leg and said second leg around said third hinge. 
   
   
       7 . A support structure, as recited in  claim 6 , wherein said first leg, said second leg, said third leg, and said fourth leg provide a stable structure when said first leg and said second leg have rotated to said first stop and when said top portions of said first leg and said second leg have rotated toward top portions of said third leg and said fourth leg to provide said pressure. 
   
   
       8 . A support structure, as recited in  claim 6 , wherein said fourth hinge extends through said bar, wherein said fourth hinge includes a variable spacing device. 
   
   
       9 . A support structure, as recited in  claim 8 , wherein said variable spacing device includes a spring and a pin hinge. 
   
   
       10 . A support structure, as recited in  claim 2 , wherein said first hinge includes a structure that extends toward said second hinge. 
   
   
       11 . A support structure, as recited in  claim 10 , wherein said second hinge includes a structure that extends toward said first hinge. 
   
   
       12 . A support structure, as recited in  claim 1 , further comprising a second stop, wherein said second leg center portion includes said second stop for limiting said rotation of said first leg with respect to said second leg. 
   
   
       13 . A support structure, as recited in  claim 12 , wherein said first stop limits rotation of said second leg with respect to said first leg at about the same rotational angle that said second stop limits rotation of said first leg with respect to said second leg. 
   
   
       14 . A support structure, as recited in  claim 1 , wherein said first leg has a first width in said first leg center portion and wherein said first leg has a second width outside said first leg center portion, wherein said first width is greater than said second width. 
   
   
       15 . A support structure, as recited in  claim 14 , wherein said second leg has a third width in said second leg center portion and wherein said second leg has a fourth width outside said second leg center portion, wherein said first width is identical to said third width and wherein said second width is identical to said fourth width. 
   
   
       16 . A support structure, as recited in  claim 1 , wherein said first leg, said second leg, said third leg, and said fourth leg are identical. 
   
   
       17 . A support structure, as recited in  claim 1 , further comprising a bushing, wherein said bushing is located between said first leg center portion and said second leg center portion for reducing friction there between when said second leg rotates with respect to said first leg. 
   
   
       18 . A support structure, as recited in  claim 1 , wherein said first leg center portion includes a first mortis and wherein said second leg center portion includes a second mortis, wherein said first mortis connects with said second mortis, wherein said first mortis includes a first edge, wherein said first edge provides said first stop. 
   
   
       19 . A support structure, comprising a first leg, a second leg, a third leg and a fourth leg, wherein each said leg has a top portion, a center portion, and a bottom portion, wherein said first leg center portion overlaps said second leg center portion and wherein said third leg center portion overlaps said fourth leg center portion, wherein said first leg has a first width in said first leg center portion, and wherein said first leg has a second width outside said first leg center portion, wherein said first width is greater than said second width. 
   
   
       20 . A support structure, comprising:
 a first leg, a second leg, a third leg and a fourth leg, wherein each said leg has a top portion, a center portion, and a bottom portion; and   a first hinge and a second hinge, said first hinge connecting said first leg center portion and said second leg center portion, said second hinge connecting said third leg center portion and said fourth leg center portion, wherein said first hinge allows rotation of said second leg with respect to said first leg, wherein said second hinge allows rotation of said forth leg with respect to said third leg, wherein said first leg center portion and said second leg center portion are mortised and wherein said third leg center portion and said fourth leg center portion are mortised.   
   
   
       21 . A support structure, comprising:
 a first leg, a second leg, a third leg and a fourth leg, wherein each said leg has a top portion, a center portion, and a bottom portion;   a bar and a hinge, wherein said hinge extends between said first leg and said second leg, wherein said hinge extends through said bar, wherein said hinge includes a device having a variable length.   
   
   
       22 . A support structure, as recited in  claim 21 , wherein said variable spacing device includes a spring and a pin, wherein said spring is longer than said pin. 
   
   
       23 . A support structure, as recited in  claim 21 , further comprising a slot in said first leg and in said second leg, wherein said variable length device extends through said slot.