Rucksack which may be switched to a front position

Abstract

A rucksack including a bag and a shoulder straps/belt assembly laid out in the back of the bag. The bag is laid out in order to switch from a standard wearing position into a front position. The shoulder straps/belt assembly has two straps each having an upper portion, attached to the top of the back of the bag, an intermediate portion, and a lower portion. The ends common to the intermediate portions and to the lower portions are attached to the bottom of the back of the bag, the distal ends of the lower portions are provided with a fastening system. A sliding system is laid out on the bag in order to slidably mount one of the common ends between the intermediate portion and the lower portion of one of the straps. The strap has a fastening system laid out the common end between the upper portion and the intermediate portion.

1 . A rucksack comprising a bag and a shoulder strap/belt assembly laid out in a back of the bag, said bag being laid out in order to switch from a standard wearing position to a front position, the shoulder straps/belt assembly comprises two straps each having an upper portion attached to the top of the bag, an intermediate portion and of a lower portion, ends common to the intermediate portions and to the lower portions being attached to a bottom of the back of the bag, distal ends of the lower portions being provided with a fastening system laid out for maintaining said distal ends fastened, so that the upper portions and the intermediate portions form said shoulder straps, and that the lower portions fastened together form at least a waist belt front portion, and at least one sliding system is laid out on the bag so as to slidably mount one of the ends common between the intermediate portion and the lower portion of one of the straps facing the bottom of the back of the bag, said strap comprising a fastening system laid out at the end common between the upper portion and the intermediate portion said fastening system being laid out in order to detach said intermediate portion from said upper portion so as to open the shoulder strap and to slide the intermediate portion on the sliding system, in order to slacken the belt and thus switch the bag into the front position. 
   
   
       2 . The bag according to  claim 1 , further comprising two sliding systems laid out on the bag for slidably mounting both ends common between the intermediate portions and the lower portions, facing the bottom of the back of the bag, said sliding systems allowing the shoulder straps to be slackened when the distal ends of the lower portions are detached, facilitating removal of the bag, and for adjusting the shoulder straps on the body in the wearing position. 
   
   
       3 . The bag according to  claim 2 , wherein at least one lower portion comprises a blocking member, said blocking member being laid out so as to limit the slackening of the shoulder straps when the lower portions are detached. 
   
   
       4 . The bag according to  claim 2 , wherein two fastening systems are laid out at the ends common between the upper portions and the intermediate portions of both straps. 
   
   
       5 . The bag according to  claim 2 , wherein at least one of the straps comprises at least one system for adjusting the length of said strap, the adjustment of the length allowing the shoulder straps and the belt to be systematically adjusted when the distal ends of both lower portions are fastened together. 
   
   
       6 . The bag according to  claim 5 , wherein an adjustment system is laid out at the distal end of one of the lower portions. 
   
   
       7 . The bag according to  claim 5 , wherein an adjustment system is laid out on at least one of the lower portions, said adjustment system forming a blocking member laid out to limit the slackening of the shoulder straps when the lower portions are detached. 
   
   
       8 . The bag according to  claim 5 , wherein an adjustment system is laid out at the end common between the upper portion and the intermediate portion of at least one of the shoulder straps. 
   
   
       9 . The bag according to  claim 2 , wherein the sliding systems are formed by rings laid out on lateral sides at the bottom of the back of the bag. 
   
   
       10 . The bag according to  claim 9 , wherein the lower portions comprise an overthickness of a size larger than the passage section of the ring, said overthickness forming a blocking member, capable of allowing the intermediate portion to slide through the rings and said overthickness to be blocked in order to prevent sliding of the lower portions through said rings, said blocking member being laid out so at to limit the slackening of the shoulder straps when the lower portions are detached. 
   
   
       11 . The bag according to  claim 1 , wherein in that the fastening system between the lower portions of the straps have a male portion laid out on one of the distal ends and a female portion laid out on the other of the distal ends, the male portion being capable of snapping onto the female portion. 
   
   
       12 . The bag according to  claim 9 , wherein the fastening system between the upper portion and the intermediate portion forming the shoulder strap, has a male portion and a female portion, one of the male and female portions being laid out at the lower end of the upper portion and the other portions being laid out at the upper end of the intermediate portion, the male portion being capable of snapping onto the female portion. 
   
   
       13 . The bag according to  claim 12 , wherein the male or female portion of the fastening system, laid out at the upper end of the intermediate portion of the shoulder strap, is of dimensions larger than the passage section of the ring so as to block said portion on the ring when the intermediate portion has completely slid through said ring, and to ensure holding of said intermediate portion and of the loosened belt during the switching of the bag. 
   
   
       14 . The bag according to  claim 1 , further comprising a holding strap laid out between both shoulder straps, at least at the common ends between the upper portions and the intermediate portions, in order to prevent separation between said upper portions of the shoulder straps when the bag is in the wearing position. 
   
   
       15 . The bag according to  claim 14 , wherein the holding strap has two strap portions attached to the upper portions, the ends of said strap portions being able to be attached by means of a fastening system. 
   
   
       16 . The bag according to  claim 15 , wherein the strap portions comprise a length adjustment system for adjusting the maximum separation position between the upper portions of the shoulder straps. 
   
   
       17 . The bag according to  claim 1 , further comprising at least one handling handle laid out on a side opposite to the fastening system, said handle being able to facilitate the switching of the bag into the front position.