Load-shifting cargo transfer apparatus

A load shifting type cargo transfer system comprising:

• a. a stationary unit having a plurality of equally spaced parallel projections of the same height and width;
• and
• b. a mobile unit comprising,
• a main frame means,
• a support means including a plurality of unitary H-shaped tines extending perpendicularly from said main frame means, wherein each tine has at least one roller extending from the bottom thereof,
• unitary cargo holder means having a top surface and side surfaces extending downwardly therefrom surrounding a portion of each of said tines, wherein said cargo holder means are dimensioned to fit between the projections of said stationary unit, and said cargo holder means includes closed guide slots and said tines include knock-pins, said knock pins extending into said guide slots thereby limiting the upward and downward movement of said cargo holder means relative to said tines,
• lifter means for raising and lowering said cargo holder means with respect to said tine, said lifter means including a hose positioned between said tines and said cargo holder means in the upper portion of said H wherein said hose in inflated and deflated by the insertion and withdrawal of a working fluid therefrom, and the sides of the upper portion of said H provides lateral stability to said side surfaces of said cargo holder means, and
• drive means mounted on said main frame means for moving said mobile unit, said drive means comprising a prime mover and drive wheel means operatively connected to said prime mover wherein said drive wheel means extend from the bottom of said main frame means.