Patent ID: 7703615

Claim:
A lattice piece ( 10 ) for a large mobile crane and structured and arranged to be separated and foldable, comprising four corner posts ( 12 ), diagonal bars ( 14 , 16 ) structured and arranged for connecting each corner post ( 12 ) with two adjacent corner posts ( 12 ) and each being foldably hinged at two corner posts ( 12 ) connected with each other, and null bars ( 18 , 20 ) foldably hinged at two corner posts ( 12 ) connected with each other, wherein the lattice piece ( 10 ) is separable and foldable into two distinct parts ( 46 , 48 ) such that in separated and folded condition, each said distinct part ( 46 , 48 ) contains two corner posts ( 12 ) one on top of the other, with the diagonal bars ( 14 , 16 ) and null bars ( 18 , 20 ) each being pivotally coupled to one of said corner posts ( 12 ) in each said distinct part ( 46 , 48 ) and said two distinct parts ( 46 , 48 ) being configured to be totally disassembled and separated from one another in said folded condition to facilitate transport from the crane operating site.