Knock-down construction for front end loader

In a power loader arrangement having two spaced-apart boom members, a sub-frame assembly for mounting said boom members at their rearward portions on a power vehicle and at least one cross-member for mechanically interconnecting said boom members at their forward portions and maintaining a predetermined spacing therebetween, said sub-frame assembly including two side arms for positioning alongside a power vehicle and mechanically interconnected at their front portions to support vertical loads when in use, each boom member being hollow and having spaced-apart inner and outer plates secured together along corresponding upper and lower edges, means at each cross-member end portion for mechanically securing the respective cross-member end portions to the respective inner and outer plates,

• said securing means comprising:
• means associated with said inner plate of said boom arm and means associated with a respective end portion of said cross-member which are adapted to cooperate to resist shear and torsional forces exerted on said interconnection during usage of said loader,
• means associated with said respective cooperating means of said boom arm and cross member end portion to provide for a transfer of a portion of said torsional and shear forces and longitudinal forces exerted along said cross-member during loader use from said inner plate to said outer plate of each boom arm and
• mechanically releasable fastener means at both end portions of said cross member for coupling said respective cooperating means and in conjunction with said
• transfer means providing a secure interconnection, said mechanical securement of the at least one cross-member to said boom arms and the mechanical interconnection of the sub-frame providing for a compact disassembled loader arrangement.