How does Toyota's patented system allow pickup boxes to be washed at the touch of a button?

Self cleaning system for pickup boxes. It's the latest invention of Toyota, or at least the last one that it has patented. He did it at the US Patent and Trademark Office, which was leaked to various North American media outlets.

This technology is composed of a series of ducts and spray nozzles integrated into the vehicle interior. It was developed by Toyota R & D engineers at the Michigan Development Center.

The system is simpleWhen the driver controls it from the inside, the spray nozzles mounted on the inner walls of the box carry water and remove the dirt generated during all kinds of utility tasks.

The nozzles are deployed when the system is activated, but they are stored inside the walls when it is turned off. According to the patent, also can swing to offer different types of sprays.

It has a water tank for feeding the nozzles through the ducts, a second mouth for air pressure and a third connection for a manual washing machine. In the future, I could add an air tank under pressure and a compressor that would work with the engine.

For the moment, the Japanese brand has not indicated whether it plans to introduce it into one of the pickups sold in the world. A priori, this would be very useful for people who work with this type of vehicle and often lose time washing the box. Did he ever reach the Hilux?