摘要 |
<p>The wheel has two disks that are bent outwards from center, and are connected by a rod and a round rod. The rods protrude from one disk to another disk, and comprise an opening in the center for fastening. A convex part is provided in the center. Grooves and ribbings are provided on the disks. The disks are divided into two or more segments (6). A brake shoe is fastened to an edge of the disks that are provided with striation.</p> |