Patent ID: 8517155

Claim:
A mobile base for a luggage case, comprising a base and two supports, the base including two aligned sleeves, each of the sleeves having an inner threaded hole at a central portion thereof, the two supports being movably connected to the sleeves, each of the supports having an unthreaded cylinder and an outer threaded section, the outer threaded section being adapted to engage with the inner threaded hole, wherein the inner threaded hole is longer than the outer threaded section for allowing the outer threaded section to be adjusted to various positions within the inner threaded hole, and wherein the outer threaded section of each of the supports has a diameter greater than that of the unthreaded cylinder, and the inner threaded hole of each of the sleeves is formed with an inner stop ring at one end thereof for stopping the outer threaded section of each of the supports while allowing the unthreaded cylinder to extend out of the sleeve.