| 摘要 |
<p>The structure has end runners (1) provided between two rollers (4) per side, and comprising a contact surface (5) provided above a running rails or guiding rails. The contact surface is arranged with a distance of approximately 1 millimeter (mm) to 3 mm above the running or guiding rails. The contact surface overlies on the running or guiding rails by pressing of rollers into the running rails or guiding rails during lowering of the end runners. The contact surface is formed with rounded corner regions in a block-shaped manner, and is made of plastic.</p> |
