A brief explanation about the invention:
A device is installed and fitted at the bottom of school bags or any backpacks. it will contain air pumps or high speed fans and strong air pump high power until in order to reduce the weight of the bag from the back and shoulders. However, to reduce and prevent the hazard of the strong fans, there will be a plastic mesh covering the air pumps.
Moreover, the air pumps or fans can be replaced with a bag filled with hot air which is made of nylon with higher tolerances for heat, as well as it is covered with a layer of heat-insulating material, for instance, cloth. So this is will be installed also at the bottom of the bag in order to push the weight a little higher and to relieve heaviness. Furthermore, as air pumps or fans are run by solar energy by installing solar cells at the front of the bag and connected with air pumps or electric wires air, which they are placed in a special pocket of insulator fabric that is against water and sun heat to absorb sunlight and convert it to electrical energy.
For protection, the air bag or air pumps are saved in a special pocket and attached to the bag bottom which is made of a special fabric against water and sun heat which contains a zipper to open and close.
It is important to protect the solar cell Panel by installing it in a pocket that is made of a special fabric waterproof.
The new features of this invention; are speed controller for air pumps or heat bag, as well as a system to operate pumps air or fans and heat the air bag by solar cells.