Couplers for stackable platforms

Abstract

The invention is an improved coupler for interconnecting a plurality of stackable platforms, the coupler having projections appropriately sized and spaced to facilitate frictional engagement of the coupler with platforms having different dimensions.

1 . A coupler for stackably interconnecting two classes of platforms, each platform having at least one vertically extending socket, each socket having at least one diametrical cross member and at least two transverse cross members perpendicular to said diametrical cross member, the said at least one diametrical cross member of a first class of platforms having a first thickness and said at least two transverse cross members of said first class of platforms being separated by a first distance;
 The said diametrical cross section of a second class of platforms having a second thickness and said at least two transverse cross members of said second class of platforms being separated by a second distance, said coupler comprising a body section having a cross sectional configuration corresponding to that of said socket and further comprising a pair of projections separated by a space, each of said pair of projections having a width, said space being greater than said first thickness of said diametrical cross member of said first class of platforms and said space being substantially equal to said second thickness of said diametrical cross member of said second class of platforms.   
   
   
       2 . The invention of  claim 1 , wherein said width of said projections is substantially equal to said first distance separating said transverse cross members. 
   
   
       3 . The invention of  claim 1 , wherein said width of said projections is substantially equal to said second distance. 
   
   
       4 . The invention of  claim 1 , wherein said space tapers. 
   
   
       5 . The invention of  claim 1 , which further comprises a plurality of ribs positioned within an internal cavity in said coupler. 
   
   
       6 . The invention of  claim 1 , wherein each said cavity further comprises a plurality of drainage openings.