| 摘要 |
The device has a wing pulling stopper (20) fixed at a display arm (10) that exhibits a lower side with squared cross section, where the lower side of the display arm exhibits a wing frame. A wing pulling system is connected with a connecting rod that is mounted at the wing frame. The stopper is adjusted perpendicular to its longitudinal dimension along the lower side of the display arm. The stopper is locked against the arm in a pre-defined position using a stop device. |
