| 摘要 |
<p>The system has a belt strap (2) connected with a feeder spring mechanism of a belt roll device (1) that is arranged in a vehicle. The device is arranged in a side wall (4) and/or a bottom (4') of a transportation area, where the side wall and/or the bottom include a passage opening with width that corresponds to width of the strap. The strap is extended from the device via the opening into the area. An automatically operating unrolling blocking mechanism is coupled with the strap and released by exceeding pre-determined unrolling acceleration of the strap.</p> |
