Abstract: The invention relates to a backpack (1) comprising a bag (2), a frame (3a, 3b, 5) secured to the rear face (7) of the bag so as to form a dorsal plane (9) having a pair of straps (11a, 11b) slidably mounted thereon, and a belt assembly (13) having a bottom portion (15) arranged to be held around the waist. Link means (17, 19) are arranged between the belt assembly (13) and the pair of straps (11a, 11b), together forming a dorsal holder element (21) arranged to enable the belt assembly to be slidably mounted relative to the dorsal plane. Suspension support means (23) are arranged between the bottom portion (15) of the belt assembly and the bottom portion (25) of the dorsal plane in order to retain the bag by keeping the dorsal plane pressed against the back and by damping movements of the bag relative to the dorsal holder element.

Abstract: A rucksack comprising a bag having a back panel and, among other things, a belt assembly and a rigid frame secured to the back panel and the belt assembly. According to the invention, the bottom portion of the rigid frame has a V-shaped configuration with an angle ? at the apex, and in its middle and rear portion, the belt assembly includes an upwardly open pocket having a V-shaped configuration with an angle ? at the apex, where ? is greater than ?, such that said pocket is suitable for serving as a housing for receiving the V-shaped bottom portion of the frame while allowing the belt assembly to pivot angularly to some extent relative to the remainder of the rucksack.

Abstract: A rucksack comprising a bag having a back panel and, among other things, a belt assembly and a rigid frame secured to the back panel and the belt assembly. According to the invention, the bottom portion of the rigid frame has a V-shaped configuration with an angle ? at the apex, and in its middle and rear portion, the belt assembly includes an upwardly open pocket having a V-shaped configuration with an angle ? at the apex, where ? is greater than ?, such that said pocket is suitable for serving as a housing for receiving the V-shaped bottom portion of the frame while allowing the belt assembly to pivot angularly to some extent relative to the remainder of the rucksack.