Ergonomic upright wheeled luggage

In an upright luggage case having a main body with a back, a front, a top and a bottom, and the luggage case, when at least partially loaded with personal items, also having a center of gravity at about the geometric center of the body, an improvement comprising:

• at least two back wheels attached to the bottom substantially proximate to the back of the body;
• at least one front for wheeling means mounted upon the bottom substantially proximate to the front of the body;
• the back of the body extending between the top and the bottom and disposed at a first substantial angle from the vertical when all the wheels are in contact with a generally horizontal supporting surface;
• the front of the body extending between the top and the bottom and disposed at a second substantial angle from the vertical when all the wheels are in contact with the supporting surface;
• and
• handle means, mounted at an upper end of the body substantially proximate to the back of the body, for moving the case upon the wheels along the supporting surface;
• wherein an imaginary vertical line passing through the center of gravity intersects the bottom of the body.

An article of upright wheeled luggage for transporting personal items across a supporting surface, comprising a main body having a front, a back, two sides, a top, and a bottom, said bottom comprising a front edge and a back edge, said body defining an interior space in which the personal items may be contained, the body having a major axis spaced between the front and the back, and the luggage and personal items contained within the interior space having a center of gravity, said article of luggage comprising:

• at least two back wheels attached to the bottom substantially adjacent to the back edge;
• and
• front means for wheeling mounted upon the bottom between the front edge and the back wheels;
• wherein when the wheels and the front means for wheeling are engaging a horizontal supporting surface, the major axis is tilted at an angle from the vertical of between about 6 degrees and about 25 degrees;
• and
• wherein the center of gravity is above the bottom and between the back wheels and the front means for wheeling.

A wheeled luggage case comprising:

• a main body defining an interior space for containing personal items, the body comprising a top and a bottom which define a height dimension, said body further comprising:
• a width dimension less than the height dimension, and a depth dimension less than said width dimension;
• a center of gravity located within the interior space;
• and
• a major axis extending between the top and the bottom and defining an angle of tilt with respect to vertical;
• at least two back wheels connected to the body;
• and
• at least one front wheel disposed upon the bottom, forward of the back wheels;
• wherein a vertical line through the center of gravity passes between the front wheel and the back wheels, and wherein the angle of tilt is between about 6 degrees and about 25 degrees.