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: This device is noteworthy in that it comprises two elements of positional control and adjustment made using manual remote controls that are independent of one another and that allow the position of a back frame to be adjusted with respect to a carrying harness. The first element allows the back frame to be raised with respect to the harness and the second element allows the back frame to be lowered with respect to the harness. The back frame is designed to receive an endless belt arranged in its median longitudinal plane. The belt is secured by a strand to the carrying harness allowing the back frame to move relative to the harness via the positional control and adjustment elements. A locking mechanism tensioned by the second control element acts and locks the endless belt in position or releases it according to the desired phases of movement.

Abstract: A backpack that includes at least one module which is movable between a first storage position in which its contents are difficult for the user to reach with the bag on his back and a second access position in which the said contents are easy for the user to reach with the bag on his back. The module is fitted to slide between the first and second positions, on at least one rail extending laterally from a rear area of the bag to the front of the bag, and possibly as far as the strap assembly. For each module, it preferably includes a rail support panel, the rear edge of which is fixed laterally to the bag proper and the front edge of which extends to the front of the bag.

Abstract: The device for adjusting the carrying position of a rucksack consists of a rucksack back (1) on which a carrying harness (3) is positioned, characterized in that it comprises two means for controlling and adjusting the position (M1–M2), established with the aid of remote manual controls which are autonomous in relation to each other and which enable the position of the back of the sack to be adjusted in relation to the carrying harness, whereby the first means enables the back of the sack to be raised in relation to the harness and the second means enables the back of the sack to be lowered in relation to the harness, so that the dimensions of the back of the rucksack to the person carrying said rucksack can be adjusted the support areas can be modified during walking in order to reduce any injuries that might occur.

Abstract: This device is noteworthy in that it comprises two means of positional control and adjustment (M1-M2) made using manual remote controls that are independent of one another and that allow the position of the back frame to be adjusted with respect to the carrying harness, the first means (M1) allowing the back frame to be raised with respect to the harness and the second means (M2) allowing the back frame to be lowered with respect to the harness, and in that the back frame is designed to receive an endless belt (5) arranged in its median longitudinal plane, said belt being secured by a strand to the carrying harness and allowing the back frame to move relative to the harness via the positional control and adjustment means (M1-M2), and in that a locking mechanism (11) tensioned by the second control means (M2) acts and locks the endless belt (5) in position or releases it according to the desired phases of movement, and in that said control means (M2) includes a strap, one end (6a) of which is secured to the co