| 摘要 |
<p>Roller-skate having two pairs of rollers (31). The two pairs of rollers form each of them a unit. They are carried resiliently, in a hinged but limited manner, by two inclined fixing surfaces (18, 19), provided at the boot (10). The latter is a one piece boot of synthetic material. It is mounted between the two fixing surfaces and allows an adjustment for the location for the toes and the heel for the motion of the foot during running with the roller-skate. </p> |
