Patent ID: 7717440
Filing Date: 2010-05-18
Classification: B62B

Abstract:
1. A manually operable luggage cart for transporting goods between remote locations, said luggage cart comprising: a central storage chamber having planar top and bottom surfaces; a handle being pivotal between rectilinear oblong displaced positions extending parallel and diagonal to a longitudinal length of said storage chamber; a plurality of casters being rotatably connected to said storage chamber; and means for automatically biasing said casters between exposed and retracted positions from said bottom surface of said storage chamber when said handle is pivoted between the parallel and diagonal positions and about a curvilinear path defined adjacent to a proximal end of said storage chamber; wherein said automatic biasing means comprises at least one rectilinear shaft directly coupled to at least one of said casters, said rectilinear shaft having a geared front face extending along a major longitudinal length thereof: a drive gear directly connected to said handle and being rotated along clockwise and counter clockwise directions when said handle is pivoted between the parallel and diagonal positions respectively; a first driven gear in direct and rotary engagement with said drive gear, said first driven gear being freely rotated in an opposite arcuate path with respect to said drive gear and further being housed within said storage chamber; and a second driven gear in direct and rotary engagement with said first driven gear and said rectilinear shaft respectively, said second driven gear being rotated in a same direction as said drive gear; wherein said second driven gear causes said rectilinear shaft to reciprocate along a rectilinear path while said drive gear is rotated along the clockwise and counter clockwise directions when said handle is pivoted between the parallel and diagonal positions respectively; wherein said handle comprises a pair of tubular female members situated against said bottom surface of said storage chamber and extending parallel to a longitudinal length thereof; and a pair of tubular male members telescopically seated within said female members and longitudinal displaced between linearly extended and retracted positions respectively; wherein said male members are completely removably from said female members when fully displaced to the extended position such that said male members are pivoted between clockwise and counter clockwise positions such that said male members are selectively adapted between the parallel and diagonal positions as said handle is raised and lowered about a distal end of said storage chamber; wherein said first driven gear is intermediately disposed between said second driven gear and said drive gear, said drive gear being situated adjacent to a proximal end of said luggage cart and partially exposed from said bottom surface of said storage chamber for allowing said male members to freely rotated along a travel path defined exterior of said storage chamber.