| 摘要 |
<p>Roller skate having a plurality of rollers (1) arranged in line rotatably supported on a frame secured to the underside of a shoe (2), the frame including a first frame portion (3) rigidly connected to the shoe (2), and a second frame portion (4) on which the rollers (1) are supported. Said two frame portions (3, 4) are connected with one another by at least two cross cars (9) pivotally supported both on the first (3) and on the second frame portion (4) such that the cross bars together with the frame portions (3, 4) form a parallelogram, and an approach movement of the second (4) toward the first frame portion (3) being effected against the action of helical springs (6). Adjustable fastening means located between said helical springs (6) allow to adjust the maximum vertical distance of the two frame portions (23, 24) relative to each other and thus to vary the restriction of the spring deflections. Furthermore, by releasing the fastening means completely the frame portions can be withdrawn far away from each other for removing and exchanging the springs, in order to vary the resiliency of such springs easily.</p> |
