BACK PANEL OF KNAPSACK Russian patent published in 1995 - IPC

FIELD: tourist equipment. SUBSTANCE: back panel carried inside or outside of the knapsack is intended to promote convenience of carrying a load in the knapsack by preventing direct contact between said load and the man's back and to provide for more uniform distribution of weight over the man's back, also to serve as a safety floating craft in emergency situations in water. The novelty of the invention resides in that the relation of the total mass of the back panel and the knapsack proper with a maximum permissible load to the volume displacement of the fully-submerged back panel is less than 1000.0 kg/cu m. EFFECT: easier carrying of loads. 4 dwg