Warning sign structure for vehicle
US9931978B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Jan 17, 2017 |
| Grant date | Apr 3, 2018 |
| Priority date | — |
| Expiry date | Jan 17, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60Q1/2615
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A warning sign structure includes an activating mechanism and a stretching-retracting mechanism movably joined to the activating mechanism. The stretching-retracting mechanism includes a retractable unit connected to the activating mechanism and a light emitting unit movably disposed on a top of the retractable unit. When the vehicle breaks down, the activating mechanism drives a stretching-retracting mechanism to stretch its retractable unit to an appropriate height manually or automatically and turns on a light emitting unit. The light emitting unit emits light in a high position to warn the rear-coming vehicles. The driver can also detach the stretching-retracting mechanism and use the stretching-retracting mechanism as a hand-held warning sign or a traffic baton.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.