Patent ID: 6386556
Filing Date: 2002-05-14
Classification: A63C

Abstract:
A roller skate comprises:a sole plate, a hollow bottom casing receiving the sole plates, a first wheel, a second wheel, a first wheel support seat, a second wheel support seat, a first shaft, a second shaft, a coiled spring, a positioning tube, and a blocking device, the sole plate having a front oblong hole, a rear oblong hole, and a middle block separating the front oblong hole and the rear oblong hole, a round aperture, a threaded hole, and a circular aperture formed on a periphery of the sole plate, a round hole and a through hole formed on the middle block, the hollow bottom casing having a front slot, a rear slot, and a bore matching the threaded hole of the sole plate, the first wheel support seat having a first U-shaped frame, and a first insertion plate having a first bevel and a first circular hole, the second wheel support seat having a second U-shaped frame, and a second insertion plate having a second bevel and a second circular hole, the first wheel supported by the first U-shaped frame of the first wheel support seat, the second wheel supported by the second U-shaped frame of the second wheel support seat, the first insertion plate inserted in the through hole of the middle block, the second insertion plate inserted in the through hole of the middle block, the front oblong hole of the sole plate receiving the first U-shaped frame, the rear oblong hole of the sole plate receiving the second U-shaped frame, the first shaft inserted through the round aperture of the sole plate and the first circular hole of the first insertion plate, the second shaft inserted through the circular aperture of the sole plate and the second circular hole of the second insertion plate, the positioning tube having an outer threaded end, the outer threaded end of the positioning tube engaging with the threaded hole of the sole plate the blocking device saving a blocking post and an extended rod connected to the blocking post, the extended rod inserted through the coiled spring, the positioning tube, and the bore of the hollow bottom casing, and the blocking post inserted through the round hole of the sole plate.