| 摘要 |
A plurality of wheel assemblies (20) are connected under a rolling device (10). Each of the wheel assemblies (20) comprises a pivot arm (22) pivotally connected to the bottom surface (14) of a supporting base (12). These arms (22) are allowed to pivot in a substantially vertical plane around a pivot axis. A wheel (40) is operatively connected to one end of the arm (22). A suspension element (42) is snugly interposed between the supporting base (12) and the pivot arm (22) for providing suspension to the rolling device (10). A screw (44) and a nut (46) are provided for holding the suspension element (42) in place and adjusting the compression of the suspension element (42). The rolling device (10) according to the present invention allows high performances and encompasses efficient shock absorption. It also allows the wheels (40) to follow the road profile. |
