KNAPSACK Russian patent published in 1994 - IPC

FIELD: field equipment, in particular back-carried bag for picking mushrooms, fruits, etc. SUBSTANCE: knapsack comprises front, rear and side walls, a bottom of thick flexible material, shoulder straps, a means for fixing the inlet hole, and folding framework. Side walls and bottom are of double-layer design with rigid sectional panels and folding X-shaped spring frameworks inside. Means for fixing inlet hole has the form of a flap with a pair of long straps and two pairs of buckles one of which is disposed on front wall while the other one, on rear wall for fixing the folded bag. EFFECT: improved design. 1 dwg