| 摘要 |
PURPOSE: An SOS signboard for a vehicle is provided to enable a driver who doesn't have an emergency plate to easily inform a driver of a following vehicle of an emergency state. CONSTITUTION: An SOS signboard for a vehicle comprises a guide plate(100) and a support(200). The guide plate informs a driver of an emergency state. The support supports the guide plate. The support is composed of a first support(210) and a second support(220). The first support is attached on a guardrail of a roadside and is composed of a round pipe. The second support is composed of a round pipe which has a smaller diameter than the first support. The second support is installed inside the first support and is rotated inside the first support.
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