Luggage bag with handle-activated wheel deployment system

A luggage bag with an enclosure for containing articles to be transported, and including a handle activated wheel deployment system, comprising:

• an extendable handle assembly having a plurality of extendable members, and a cross piece joining said extendable members;
• a plurality of extendable wheel assemblies having extendable wheels which are movable from a retracted position to an extended position, said extendable wheel assemblies each including an axel bracket which is rotatable about a pivot, said axel bracket also having at least one extension tab;
• an activation assembly including a linkage which connects said extendable handle assembly and at least one of said extendable wheel assemblies, such that extension of said extendable handle assembly causes extension of at least one of said extendable wheels, said activation assembly acting to move said at least one extension tab to pivot said wheels to extend said wheels and also to move said at least one extension tab to pivot said wheels to retract said wheels.