| 摘要 |
The warning device for vehicles (20) comprises a balloon (1a) and a reservoir for a gas causing the balloon (1a) to rise, where the balloon (1a) takes the form of a warning sign (3), especially with respect to its colour, shape, size and/or material. In the event of an accident the balloon (1a) is automatically filled with gas and raised to a position above the height of the vehicle in order to indicate the site of the accident, warn following vehicles and prevent subsequent accidents. |
