| 摘要 |
<p>The system has main bolts (1, 2) that are varied at a distance by twisting thread rods (5, 6), where the thread rods are parallely arranged at a distance of seventy two millimeter. An inner thread (4) and lock nuts (8) are provided for fixing a thread rod position in thread rod sections between the main bolts. Length of the main bolts is limited to ninety two millimeter. A holder is manufactured from V4A-steel. The main bolts are provided with longitudinal slits for belt accommodation, and the thread rods are screwed for stiffening.</p> |
