초록 ▼

A roller skate includes a chassis having a first frame and a second frame extending longitudinally parallel to each other, first through fourth wheels rotatably mounted in spaced apart manner between the first and second frames, and first through fourth slots provided in spaced apart manner in each

A roller skate includes a chassis having a first frame and a second frame extending longitudinally parallel to each other, first through fourth wheels rotatably mounted in spaced apart manner between the first and second frames, and first through fourth slots provided in spaced apart manner in each frame. The first slot is positioned adjacent a front end of the frame and the fourth slot is positioned adjacent a rear end of the frame. The first through fourth wheels are mounted adjacent the first through fourth slots, respectively, of both frames. The center of the fourth slot is positioned at a vertical level higher than the center of the first slot.

대표청구항 ▼

[ What is claimed is:] [8.]8. A roller skate, comprising:chassis comprising a first frame and a second frame extending longitudinally parallel to each other, each frame having a front end and a rear end; andexactly four wheels, including a first wheel, a second wheel, a third wheel and a fourth whee

[ What is claimed is:] [8.]8. A roller skate, comprising:chassis comprising a first frame and a second frame extending longitudinally parallel to each other, each frame having a front end and a rear end; andexactly four wheels, including a first wheel, a second wheel, a third wheel and a fourth wheel rotatably mounted in spaced apart manner between the first and second frames, with the first wheel positioned adjacent the front end of the frames and the fourth wheel positioned adjacent the rear end of the frames;wherein the first and second wheels have the same size, the third and fourth wheels have the same size, and the third and fourth wheels are larger than the first and second wheels, and all four wheels are arranged so that all four wheels simultaneously contact a tractive surface when the roller skate is in use.