EP1506724B1 - Backpack with pivotal hip belt - Google Patents

Backpack with pivotal hip belt Download PDF

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Publication number
EP1506724B1
EP1506724B1 EP04370024A EP04370024A EP1506724B1 EP 1506724 B1 EP1506724 B1 EP 1506724B1 EP 04370024 A EP04370024 A EP 04370024A EP 04370024 A EP04370024 A EP 04370024A EP 1506724 B1 EP1506724 B1 EP 1506724B1
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EP
European Patent Office
Prior art keywords
belt assembly
rucksack
pocket
frame
shaped
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
EP04370024A
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German (de)
French (fr)
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EP1506724A1 (en
Inventor
Matthieu Foissac
Antoine Lafoux
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Promiles SNC
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Promiles SNC
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Publication of EP1506724A1 publication Critical patent/EP1506724A1/en
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    • AHUMAN NECESSITIES
    • A45HAND OR TRAVELLING ARTICLES
    • A45FTRAVELLING OR CAMP EQUIPMENT: SACKS OR PACKS CARRIED ON THE BODY
    • A45F3/00Travelling or camp articles; Sacks or packs carried on the body
    • A45F3/04Sacks or packs carried on the body by means of two straps passing over the two shoulders
    • A45F3/047Sacks or packs carried on the body by means of two straps passing over the two shoulders with adjustable fastenings for the shoulder straps or waist belts
    • AHUMAN NECESSITIES
    • A45HAND OR TRAVELLING ARTICLES
    • A45FTRAVELLING OR CAMP EQUIPMENT: SACKS OR PACKS CARRIED ON THE BODY
    • A45F3/00Travelling or camp articles; Sacks or packs carried on the body
    • A45F3/04Sacks or packs carried on the body by means of two straps passing over the two shoulders
    • A45F2003/045Sacks or packs carried on the body by means of two straps passing over the two shoulders and one additional strap around the waist
    • AHUMAN NECESSITIES
    • A45HAND OR TRAVELLING ARTICLES
    • A45FTRAVELLING OR CAMP EQUIPMENT: SACKS OR PACKS CARRIED ON THE BODY
    • A45F3/00Travelling or camp articles; Sacks or packs carried on the body
    • A45F3/12Shoulder-pads
    • A45F2003/127Dorsal or hip pads for the lumbar back or for the waist

Definitions

  • the present invention relates to an improved backpack adapted to adapt to the movements of the user during the movement of the latter through an angular pivoting ability of the belt assembly relative to the back of the bag.
  • the load contained by the bag should not be supported solely on the shoulders of the user through the shoulder straps, but should be distributed as best as possible, in particular by transferring a large part of it to the part lumbar of the user.
  • a backpack comprising a set of straps and a belt assembly and a rigid armature disposed between said straps and belt assemblies, such a charge transfer is obtained by supporting the rigid armature by the belt set.
  • An improvement of the user's comfort is also obtained by allowing a certain angular pivoting between the bag itself and either the set of straps or the belt assembly.
  • the strap set and / or the belt assembly can follow the natural movements of the user's body as it moves while the bag itself and the load contained therein remain substantially in the same position.
  • This angular pivoting capacity, for the belt assembly is particularly advantageous in the case where there is load transfer on said belt assembly.
  • the example which is described and illustrated in this prior document relates to a backpack whose rigid armature is constituted by two vertical uprights which consist of two parallel metal blades remote from each other.
  • Each blade is secured in its upper part to the back panel of the bag and in its lower part to the belt assembly. More specifically, this securing is done by interlocking the corresponding ends of each blade in a kind of sheath, the inner recess forms a U, adapted to receive the end of said blade.
  • the width of the inner recess of the sheaths equipping the belt assembly has a width in the plane transverse to the back panel which is greater or substantially greater than the width of the corresponding amount.
  • the present invention overcomes the disadvantages presented by these embodiments while respecting the principle of angular rotation of the belt assembly recommended by the documents. FR.2.739.004 and FR.2.333.464 .
  • the backpack in question comprises in known manner a bag itself with a back panel and among others a belt assembly and a rigid frame secured to the back panel and the belt assembly.
  • the lower part of the rigid armature has a V-shaped configuration, with an angle ⁇ at the top
  • the belt assembly has, in its middle and rear part, an upwardly open pocket having a V-shaped configuration of angle ⁇ at the top, greater than ⁇ , so that said pocket is adapted to serve as a housing for the lower part V of the frame while allowing a certain angular pivoting between the belt assembly and the rest of the bag.
  • the rigid armature at least in its lower part V, is constituted by a flat blade, of small thickness, and the pocket is a flat pocket attached, in particular by stitching, on the rear face of the whole belt. It is therefore not created special extra thickness due to the presence of the frame, unlike what could happen if one implemented a plastic molded type of pouch, having a larger interior space.
  • the lower end of the armature, forming the V head has a rounded shape and the bottom of the pocket has, facing said head, a reinforced zone. It is indeed at the level of this zone that the load of the bag is totally transferred to the belt assembly.
  • the rounded shape of the head allows to some extent to accompany the angular pivoting and to limit the wear of the bottom of the pocket.
  • the middle part of the assembly belt comprises a V-shaped stiffening plate, constituting the inner wall of the pocket, said stiffening plate preferably having a surface state with a low coefficient of friction relative to the material constituting the V-shaped lower part of the armature.
  • the bag comprises a means for removably attaching the belt assembly to the back of the bag or to the armature which, in the inactive position, allows the lower part of the armature to be inserted into the body. V-pocket and, in the active position, the attachment of the belt assembly on the back of the bag or the frame, while not interfering with the angular pivoting ability of the belt assembly.
  • Such fastening means may in particular comprise a flexible band whose one end is fixed, in particular by stitching, according to the lower edge of the back of the bag and in the middle part thereof and which is fixable, in a removable manner in particular by means hook-and-loop fasteners, on the front face of the belt assembly after placement of the lower part of the armature in the V-pocket.
  • angular pivoting of the belt assembly there is a slight deformation of the flexible band, which is not at all prohibitive for said angular pivoting.
  • the means for fixing the central bead comprise a longitudinal strip extending said central bead and a longitudinal sleeve, fixed on the back of the bag and open downwards, adapted to receive the longitudinal strip, which is removable on one of the inner faces of said sleeve, in particular by self-gripping means.
  • the backpack 1 which will now be described conventionally comprises a bag proper 2 which can be seen in the figures only the back panel referred to as back 3 in the present text and a small part of the bottom 4. It also comprises a rigid frame 5, a set of straps, not shown, for the carrying of the bag on the shoulders of the user and a belt assembly 6 for maintaining the bag around the size of the user and also the load report at the lumbar level.
  • the rigid armature 5 has a very particular configuration since in the lower part it ends in a V-shaped configuration.
  • the armature 5 is composed of two metal blades, including aluminum, which are parallel in the upper part 1a of the bag and which, in the lower part 2b of the bag, converge one to the other until being joined together in particular by welding, which gives this frame 5 the V shape in its lower part 5a.
  • the lower end which corresponds to the head 5b of the V is preferably rounded.
  • the V configuration of the lower part 5a of the armature 5 forms an angle at the apex ⁇ , the value of the angle ⁇ being taken along the most opposite edges 8, 9 of the armature 5.
  • the head 5b of the frame 5 is, in the normal configuration of the bag, disposed near the lower edge 7 of the back 3 of the bag.
  • the belt assembly 6 is shown in Figure 3, seen from the rear, that is to say the visible face being the one that will be in contact with the back 3 of the bag during its assembly therewith.
  • This belt assembly 6 comprises, centrally and symmetrically with respect to the axis DD 'a rear pocket 10 whose opening 11 is turned upwards.
  • This pocket 10 has a vertex angle V configuration ⁇ , this angle ⁇ being greater than the angle ⁇ above.
  • the pocket 10 is a flat pocket made by sewing on the rear face 12 of the belt assembly 6 one or more pieces. It is understood that the rear face 12 on which this pocket 10 is attached must have a flat surface so as not to hinder the angular pivoting of the lower part 5a of the armature 5 when it is introduced into the pocket 10, as illustrated also in FIG. 3. Also preferably so as not to impede this angular pivoting, the rear face 12 of the belt assembly 6 has a surface state with a low coefficient of friction with respect to the material constituting the lower part 5a of the armature 5, for example when making the pocket 10 is reported on the rear face 12 a smooth plastic plate. Moreover, the median V part of the belt assembly facing the pocket 10 may advantageously comprise a stiffening plate. Also the bottom 10a of the pocket 10 can be reinforced by any appropriate means.
  • FIG. 3 is illustrated the lower part 5a of the armature 5 after it has been introduced into the pocket 10, this insertion being done centrally with respect to the axis DD '.
  • This introduction does not pose any particular difficulty, being in particular facilitated by sliding of the head 5b on the rear face 12 of the belt assembly with improved surface condition.
  • the fastening means are constituted by a flexible strip 15 and hook-and-loop hook-and-loop fasteners.
  • the flexible band 15 has one end which is fixed, in particular by sewing, along the lower edge 7 of the back 3 of the bag, at the junction of the back 3 with the bottom 4, centrally with respect to the axis DD '.
  • This strip 15 comprises self-gripping elements, for example loops 16, on the visible face in FIG. 2.
  • the front face 17 of the middle part of the belt assembly 6 comprises self-gripping elements, hooks 18 in the aforementioned example, allowing the removable strip 15 to be secured to said front face 17 during the folding of said flexible strip 15 along its fastening line 19 with the lower edge 7 of the back 3 of the bag.
  • the backpack 1 comprises, at the level of the lumbar portion of the user, two sets of padding means, namely a first set which consists of the two lateral beads of the belt assembly and a second game which is constituted by a central bead, fixed on the back of the bag and which is adapted to be housed between the two lateral beads of the belt assembly once said belt assembly has been mounted on the lower part of the frame .
  • the belt assembly 6 comprises on either side of the central zone in which the pocket 10 is located, two beads 20, 21, of conventional structure, each being terminated by parts 22 allowing, by cooperation generally by snap, to close the waistband around the waist of the user.
  • This embedding of the central bead 23 between the two lateral beads 20,21 is perfectly visible in Figure 1.
  • the central bead 23 is fixed, in particular by stitching, along the lower edge of the back 3 of the bag, centrally and especially under the flexible strip 15 as shown in FIG. To obtain the recess illustrated in FIG. 1, this central bead 23 has in the portion that is close to the lower edge 7 of the back 3 a substantially trapezoidal configuration, able to be applied in the space defined in the two lateral beads. 20.21.
  • the central bead 23 has the overall shape of a rhombus. It can of course have any other form.
  • This central bead 23 is equipped with a fastening means on the back 3 of the bag which is for example constituted by a flexible band 24, longitudinally extending said bead 23, which band is equipped with self-gripping elements for example loops on the rear face 24a thereof, not visible in Figures 2, 4 and 5 and partially visible on the figure 1.
  • the fastening of the band 24 on the back of the bag is effected by means of self-gripping elements, in particular of the hook type, placed on the inside face of a sleeve 25 fixed longitudinally on the back 3 of the bag and into which the band 24.
  • the user then folds the central bead 23 by embedding it between the two lateral beads 20, 21 and fixes said bead 23 at the back of the bag by penetrating the band 24 inside the sheath 25, so as to obtain the cooperation of the self-gripping elements carried on the band 24 and on the corresponding inner face of the sheath 25.
  • the self-gripping elements directly on the back of the bag, but an accidental detachment could have occurred much more easily in this embodiment compared to that which has been described and illustrated using a sheath. Indeed in this case the sleeve serves to protect the self-gripping elements and the disassembly of the central bead relative to the back of the bag necessarily requires manual intervention of the user.
  • the belt assembly may comprise a single continuous bead along its entire length, especially in the case where there is no means of fastening the belt assembly on the back of the bag. It is sufficient to provide on the rear face of the belt assembly in the middle part an area for the integration of the pocket 10 as described above, preferably with a stiffening plate constituting the inner wall of said pocket. In this case the other face of the stiffening plate is covered by said continuous bead.
  • the presence of the central bead 23 as described above has a particular advantage, insofar as it makes it possible to create a damping phenomenon during the angular pivoting of the belt assembly relative to the bag.
  • the two lateral beads 20,21 are in contact or almost in contact with the central bead 23 when the belt assembly 6 is in a centered position relative to the axis DD .
  • the angular pivoting of the belt assembly 20 for example according to the arrow F of FIG. 1, there is a relative crushing of the zones 20a and 23a in contact with each other of the lateral bead 20 and the central bead. 23. This limits without preventing the angular pivoting of the belt assembly 6.
  • the beads or at least one of the two beads in contact is locally free of internal stiffening element that would prevent this crushing and thus constitute an obstacle to angular pivoting.
  • the padding material, in particular the foam, constituting the beads are determined accordingly.
  • the present invention is not limited to the specific embodiment which has been described above non-exhaustively.
  • the fixing of the belt assembly on the back of the bag could be obtained by means other than the flexible band with self-gripping elements. It could in particular be obtained by a latching system on the lower part of the frame, along the axis of pivot, perpendicular to the plane of the back of the bag.

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  • Portable Outdoor Equipment (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)

Description

La présente invention concerne un sac à dos amélioré apte à s'adapter aux mouvements de l'utilisateur lors du déplacement de celui-ci grâce à une capacité de pivotement angulaire de l'ensemble ceinture par rapport au dos du sac.The present invention relates to an improved backpack adapted to adapt to the movements of the user during the movement of the latter through an angular pivoting ability of the belt assembly relative to the back of the bag.

Les fabricants de sac à dos recherchent toujours à améliorer le confort de l'utilisateur y compris pour des charges importantes.Backpack manufacturers are always looking to improve the user's comfort even for heavy loads.

Il a été constaté qu'il convient de ne pas faire supporter la charge contenue par le sac uniquement sur les épaules de l'utilisateur à travers les bretelles mais de la répartir au mieux notamment en transférant une grande partie de celle-ci vers la partie lombaire de l'utilisateur.It has been found that the load contained by the bag should not be supported solely on the shoulders of the user through the shoulder straps, but should be distributed as best as possible, in particular by transferring a large part of it to the part lumbar of the user.

A cet effet, s'agissant d'un sac à dos comprenant un ensemble bretelles et un ensemble ceinture ainsi qu'une armature rigide disposée entre lesdits ensembles bretelles et ceinture , on obtient un tel transfert de charge en faisant supporter l'armature rigide par l'ensemble ceinture.For this purpose, being a backpack comprising a set of straps and a belt assembly and a rigid armature disposed between said straps and belt assemblies, such a charge transfer is obtained by supporting the rigid armature by the belt set.

Une amélioration du confort de l'usager est aussi obtenue en permettant un certain pivotement angulaire entre le sac proprement dit et soit l'ensemble bretelles soit l'ensemble ceinture. Dans ce cas l'ensemble bretelles et/ou l'ensemble ceinture peut suivre les mouvements naturels du corps de l'utilisateur lorsqu'il se déplace tandis que le sac proprement dit et la charge qu'il contient restent sensiblement dans la même position.An improvement of the user's comfort is also obtained by allowing a certain angular pivoting between the bag itself and either the set of straps or the belt assembly. In this case the strap set and / or the belt assembly can follow the natural movements of the user's body as it moves while the bag itself and the load contained therein remain substantially in the same position.

Cette capacité de pivotement angulaire , pour l'ensemble ceinture, est particulièrement intéressante dans le cas où il y a transfert de charge sur ledit ensemble ceinture.This angular pivoting capacity, for the belt assembly, is particularly advantageous in the case where there is load transfer on said belt assembly.

Un tel concept est connu par le document FR.2.739.004 qui prévoit que l'ensemble ceinture est relié au panneau formant la face arrière du sac tourné vers le dos de l'utilisateur de manière à permettre un pivotement angulaire limité de l'ensemble ceinture par rapport au sac proprement dit , dans un plan parallèle au panneau, selon un axe horizontal transversal au panneau.Such a concept is known from the document FR.2.739.004 which provides that the belt assembly is connected to the panel forming the rear face of the bag facing the back of the user so as to allow limited angular pivoting of the belt assembly relative to the bag itself, in a plane parallel to the panel, along a horizontal axis transverse to the panel.

L'exemple qui est décrit et illustré dans ce document antérieur concerne un sac à dos dont l'armature rigide est constituée par deux montants verticaux qui consistent en deux lames métalliques parallèles éloignées l'une de l'autre. Chaque lame est solidarisée dans sa partie supérieure au panneau dorsal du sac et dans sa partie inférieure à l'ensemble ceinture. Plus précisément cette solidarisation se fait par emboîtement des extrémités correspondantes de chaque lame dans une sorte de fourreau dont l'évidement intérieur forme un U , apte à recevoir l'extrémité de ladite lame. Pour permettre le pivotement angulaire recherché, la largeur de l'évidement intérieur des fourreaux équipant l'ensemble ceinture présente une largeur dans le plan transversal au panneau dorsal qui est supérieure ou sensiblement supérieure à la largeur du montant correspondant. Ce pivotement angulaire de l'ensemble ceinture se répercute sur les deux montants simultanément, à l'instar d'un parallélogramme déformable, se traduisant par une variation de la hauteur relative d'un montant par rapport à l'autre. Pour encaisser cette variation de hauteur, le document FR.2.739.004 prévoit que les fourreaux solidarisant les montants aux panneau dorsal sont dans un matériau élastique. La solution proposée comme mode de réalisation dans le document précité ne s'avère pas optimale , notamment du fait que les mouvements des deux montants constituant l'armature rigide lors de chaque pivotement angulaire de l'ensemble ceinture sont en partie empêchés lors de charges lourdes sur le sac.The example which is described and illustrated in this prior document relates to a backpack whose rigid armature is constituted by two vertical uprights which consist of two parallel metal blades remote from each other. Each blade is secured in its upper part to the back panel of the bag and in its lower part to the belt assembly. More specifically, this securing is done by interlocking the corresponding ends of each blade in a kind of sheath, the inner recess forms a U, adapted to receive the end of said blade. To allow the desired angular pivoting, the width of the inner recess of the sheaths equipping the belt assembly has a width in the plane transverse to the back panel which is greater or substantially greater than the width of the corresponding amount. This angular pivoting of the belt assembly is reflected on both amounts simultaneously, like a deformable parallelogram, resulting in a variation of the relative height of one amount relative to the other. To accommodate this variation in height, the document FR.2.739.004 Provides that the sleeves securing the uprights to the back panel are in an elastic material. The solution proposed as embodiment in the aforementioned document is not optimal, especially since the movements of the two amounts constituting the rigid frame during each angular pivoting of the belt assembly are partially prevented during heavy loads on the bag.

Il est également connu le document FR.2.333.464 qui porte sur un sac à dos prévoyant un ensemble ceinture comprenant une poche ouverte vers le haut et apte à servir de logement à la partie inférieure d'une armature, de manière à permettre le pivotement angulaire entre l'ensemble ceinture et le reste du sac. La partie inférieure de l'armature et la poche sur la ceinture présentent une forme arrondie qui permet le pivotement angulaire entre la partie inférieure de cette armature et la poche sur la ceinture. Une telle conception ne limite toutefois pas le pivotement angulaire de l'ensemble ceinture par rapport à l'armature solidaire du sac à dos. Cette conception peut s'avérer gênante dans le cas de charge lourde nécessitant d'assurer une certaine rigidité sur le sac entre la ceinture et l'armature.It is also known the document FR.2.333.464 which relates to a backpack providing a waistband assembly comprising an open pocket upwards and adapted to serve as a housing for the lower part of a frame, so as to allow the angular pivoting between the belt assembly and the rest of the bag . The lower part of the frame and the pocket on the belt have a rounded shape which allows the angular pivoting between the lower part of this frame and the pocket on the belt. Such a design, however, does not limit the angular pivoting of the belt assembly relative to the integral frame of the backpack. This design can be troublesome in the case of heavy load requiring to ensure a certain rigidity on the bag between the belt and the frame.

La présente invention pallie les inconvénients présentés par ces modes de réalisation tout en respectant le principe du pivotement angulaire de l'ensemble ceinture préconisé par les documents FR.2.739.004 et FR.2.333.464 .The present invention overcomes the disadvantages presented by these embodiments while respecting the principle of angular rotation of the belt assembly recommended by the documents. FR.2.739.004 and FR.2.333.464 .

Le sac à dos dont il s'agit comporte de manière connue un sac proprement dit avec un panneau dorsal et entre autres un ensemble ceinture et une armature rigide solidarisés sur le panneau dorsal et sur l'ensemble ceintureThe backpack in question comprises in known manner a bag itself with a back panel and among others a belt assembly and a rigid frame secured to the back panel and the belt assembly.

De manière caractéristique , selon l'invention, la partie inférieure de l'armature rigide a une configuration en forme de V , d'angle α au sommet, et l'ensemble ceinture comporte , dans sa partie médiane et arrière, une poche ouverte vers le haut ayant une configuration en forme de V d'angle β au sommet , supérieur à α, en sorte que ladite poche est apte à servir de logement à la partie inférieure en V de l'armature tout en permettant un certain pivotement angulaire entre l'ensemble ceinture et le reste du sac.Characteristically, according to the invention, the lower part of the rigid armature has a V-shaped configuration, with an angle α at the top, and the belt assembly has, in its middle and rear part, an upwardly open pocket having a V-shaped configuration of angle β at the top, greater than α, so that said pocket is adapted to serve as a housing for the lower part V of the frame while allowing a certain angular pivoting between the belt assembly and the rest of the bag.

Ainsi selon l'invention, il n'y a qu'une seule localisation de la solidarisation entre l'armature rigide et l'ensemble ceinture qui est constituée par cette poche en forme de V . En position centrée de l'ensemble ceinture la partie inférieure en V de l'armature laisse disponible, dans ladite poche, deux portions évidées qui sont chacune égale à la moitié de l'écart entre β et α. Ainsi la capacité de pivotement angulaire , de part et d'autre de l'axe vertical du sac , qui correspond à l'axe de symétrie DD' de la partie inférieure en V de l'armature , correspond à cette valeur ½ (β - α). Au-delà de cette valeur , l'une des ailes du V viendrait en butée contre une paroi intérieure de la poche et le déplacement de l'ensemble ceinture en serait empêché.Thus according to the invention, there is only one location of the connection between the rigid frame and the belt assembly which is constituted by this V-shaped pocket. In the centered position of the belt assembly, the lower V-shaped part of the armature leaves two recessed portions available in said pocket, each of which is equal to half the distance between β and α. Thus the angular pivoting capacity, on either side of the vertical axis of the bag, which corresponds to the axis of symmetry DD 'of the lower part in V of the armature, corresponds to this value ½ (β - α). Beyond this value, one of the wings of the V would abut against an inner wall of the pocket and the movement of the belt assembly would be prevented.

Dans une variante de réalisation, l'armature rigide , au moins dans sa partie inférieure en V , est constituée par une lame plate , de faible épaisseur, et la poche est une poche plate rapportée , notamment par couture, sur la face arrière de l'ensemble ceinture. Il ne se crée donc pas de surépaisseur particulière du fait de la présence de l'armature , contrairement à ce qui pourrait se passer si l'on mettait en oeuvre une poche du type moulée en matière plastique, ayant un espace intérieur plus important.In an alternative embodiment, the rigid armature, at least in its lower part V, is constituted by a flat blade, of small thickness, and the pocket is a flat pocket attached, in particular by stitching, on the rear face of the whole belt. It is therefore not created special extra thickness due to the presence of the frame, unlike what could happen if one implemented a plastic molded type of pouch, having a larger interior space.

De préférence l'extrémité inférieure de l'armature , formant la tête du V présente une forme arrondie et le fond de la poche comporte , en regard de ladite tête , une zone renforcée. C'est en effet au niveau de cette zone qu'est transférée totalement la charge du sac sur l'ensemble ceinture. La forme arrondie de la tête permet en quelque sorte d'accompagner le pivotement angulaire et de limiter l'usure du fond de la poche.Preferably the lower end of the armature, forming the V head has a rounded shape and the bottom of the pocket has, facing said head, a reinforced zone. It is indeed at the level of this zone that the load of the bag is totally transferred to the belt assembly. The rounded shape of the head allows to some extent to accompany the angular pivoting and to limit the wear of the bottom of the pocket.

Dans une variante de réalisation, la partie médiane de l'ensemble ceinture comporte une plaque de rigidification en V, constituant la paroi intérieure de la poche , ladite plaque de rigidification présentant de préférence un état de surface à faible coefficient de frottement par rapport au matériau constituant la partie inférieure en V de l'armature. Ces deux dispositions structurelles ont pour objet de ne pas gêner le pivotement angulaire recherché en évitant de créer des freins à ce pivotement que pourrait être la formation de plis ou un état de surface trop rugueux entre l'armature et l'intérieur de la poche.In an alternative embodiment, the middle part of the assembly belt comprises a V-shaped stiffening plate, constituting the inner wall of the pocket, said stiffening plate preferably having a surface state with a low coefficient of friction relative to the material constituting the V-shaped lower part of the armature. These two structural arrangements are intended not to interfere with the desired angular pivoting by avoiding creating brakes to this pivoting that could be the formation of folds or too rough surface condition between the frame and the inside of the pocket.

Il est concevable qu'il y ait une totale absence de fixation rigide entre l'ensemble ceinture et le reste du sac à dos , dans la mesure où il y a nécessairement une solidarisation entre ces deux parties qui se fait naturellement par l'application de la charge du sac à travers l'armature dans la poche de l'ensemble ceinture. Il est donc possible que l'utilisateur puisse dans un premier temps s'équiper de l'ensemble bretelles et dans un second temps s'équiper du reste du sac, éventuellement en se faisant aider par un tiers, en introduisant la partie inférieure de l'armature dans la poche de l'ensemble ceinture et en enfilant l'ensemble bretelles. Il n'y aurait à priori pas d'inconvénient à ce manque de fixation rigide en ce qui concerne l'utilisation normale du sac sur le dos de l'utilisateur. Toutefois dans une variante de réalisation, le sac comporte un moyen de fixation amovible de l'ensemble ceinture sur le dos du sac ou sur l'armature qui permet , en position inactive , l'introduction de la partie inférieure de l'armature dans la poche en V et , en position active , la fixation de l'ensemble ceinture sur le dos du sac ou l'armature, tout en ne gênant pas la capacité de pivotement angulaire de l'ensemble ceinture.It is conceivable that there is a total absence of rigid attachment between the belt assembly and the rest of the backpack, to the extent that there is necessarily a connection between these two parts which is done naturally by the application of the load of the bag through the frame in the pocket of the entire belt. It is therefore possible that the user can initially equip the straps set and in a second time to equip the rest of the bag, possibly with the help of a third party, by introducing the lower part of the bag. frame in the pocket of the belt set and threading the straps together. There would be a priori no disadvantage to this lack of rigid fixation with respect to the normal use of the bag on the back of the user. However, in an alternative embodiment, the bag comprises a means for removably attaching the belt assembly to the back of the bag or to the armature which, in the inactive position, allows the lower part of the armature to be inserted into the body. V-pocket and, in the active position, the attachment of the belt assembly on the back of the bag or the frame, while not interfering with the angular pivoting ability of the belt assembly.

Un tel moyen de fixation peut notamment comporter une bande souple dont une extrémité est fixée, notamment par couture , selon le bord inférieur du dos du sac et dans la partie médiane de celui-ci et qui est fixable, de manière amovible notamment par des moyens auto-agrippants du type crochets et boucles , sur la face avant de l'ensemble ceinture après placement de la partie inférieure de l'armature dans la poche en V. Lors du pivotement angulaire de l'ensemble ceinture , il y a une légère déformation de la bande souple , qui n'est pas du tout rédhibitoire pour ledit pivotement angulaire.Such fastening means may in particular comprise a flexible band whose one end is fixed, in particular by stitching, according to the lower edge of the back of the bag and in the middle part thereof and which is fixable, in a removable manner in particular by means hook-and-loop fasteners, on the front face of the belt assembly after placement of the lower part of the armature in the V-pocket. angular pivoting of the belt assembly, there is a slight deformation of the flexible band, which is not at all prohibitive for said angular pivoting.

Dans une variante de réalisation , l'ensemble ceinture comporte deux jeux de moyens de rembourrage à savoir :

  • un premier jeu constitué des deux bourrelets latéraux , disposés de part et d'autre de la paroi avant de la poche en V, notamment de part et d'autre de la plaque de rigidification , les bords intérieurs des deux bourrelets latéraux délimitant un espace sensiblement en V ,
  • un second jeu constitué par un bourrelet central sensiblement en forme de V , dont la partie inférieure est fixée , notamment par couture , selon le bord inférieur du dos du sac, ledit bourrelet central étant encastrable dans l'espace en V entre les deux bourrelets latéraux et comportant des moyens de fixation amovible, notamment auto-agrippants , pour sa fixation sur le dos du sac.
In an alternative embodiment, the belt assembly comprises two sets of padding means, namely:
  • a first set consisting of two lateral beads, disposed on either side of the front wall of the V-shaped bag, in particular on either side of the stiffening plate, the inner edges of the two lateral beads defining a space substantially in V,
  • a second set consisting of a central bead substantially V-shaped, the lower part is fixed, in particular by stitching, according to the lower edge of the back of the bag, said central bead being recessed in the V-shaped space between the two side beads and comprising removable fastening means, in particular self-gripping, for its attachment to the back of the bag.

Dans une variante de réalisation, les moyens de fixation du bourrelet central comprennent une bande longitudinale prolongeant ledit bourrelet central et un fourreau longitudinal , fixé sur le dos du sac et ouvert vers le bas , apte à recevoir la bande longitudinale , laquelle est fixable de manière amovible sur l'une des faces intérieures dudit fourreau, notamment par des moyens auto-agrippants.In an alternative embodiment, the means for fixing the central bead comprise a longitudinal strip extending said central bead and a longitudinal sleeve, fixed on the back of the bag and open downwards, adapted to receive the longitudinal strip, which is removable on one of the inner faces of said sleeve, in particular by self-gripping means.

La présente invention sera mieux comprise à la lecture de la description qui va être faite d'un exemple préféré de réalisation d'un sac à dos dont le report de charge se fait sur l'ensemble ceinture , lequel a une capacité de pivotement angulaire , illustré par le dessin annexé dans lequel :

  • La figure 1 est une vue partielle en plan du dos d'un sac à dos , montrant principalement l'armature rigide dont la partie inférieure a une forme de V et l'ensemble ceinture,
  • La figure 2 est une vue partielle conforme à la figure 1, après enlèvement de l'ensemble ceinture,
  • La figure 3 est une représentation de l'ensemble ceinture avec une poche centrale dans laquelle est introduite la partie inférieure en V de l'armature,
  • Les figures 4 et 5 illustrent les étapes intermédiaires permettant la fixation de l'ensemble ceinture sur le dos du sac et
  • La figure 6 est une représentation en coupe transversale partielle du sac de la figure 1 selon l'axe VI-VI.
The present invention will be better understood on reading the description that will be given of a preferred embodiment of a backpack whose load transfer is made on the belt assembly, which has an angular pivoting capacity, illustrated by the appended drawing in which:
  • Figure 1 is a partial plan view of the back of a backpack, showing mainly the rigid frame whose lower part has a V-shape and belt assembly,
  • FIG. 2 is a partial view according to FIG. 1, after removal of the belt assembly,
  • Figure 3 is a representation of the belt assembly with a pocket in which the lower V-shaped part of the armature is inserted,
  • Figures 4 and 5 illustrate the intermediate steps for fixing the belt assembly on the back of the bag and
  • Figure 6 is a partial cross-sectional representation of the bag of Figure 1 along the axis VI-VI.

Le sac à dos 1 qui va maintenant être décrit comporte de manière conventionnelle un sac proprement dit 2 dont on ne voit apparaître, sur les figures que le panneau dorsal dénommé dos 3 dans le présent texte ainsi qu'une petite partie du fond 4. Il comporte également une armature rigide 5, un ensemble bretelles , non représenté, pour le portage du sac sur les épaules de l'utilisateur et un ensemble ceinture 6 permettant le maintien du sac autour de la taille de l'utilisateur et également le report de charge au niveau lombaire.The backpack 1 which will now be described conventionally comprises a bag proper 2 which can be seen in the figures only the back panel referred to as back 3 in the present text and a small part of the bottom 4. It also comprises a rigid frame 5, a set of straps, not shown, for the carrying of the bag on the shoulders of the user and a belt assembly 6 for maintaining the bag around the size of the user and also the load report at the lumbar level.

Comme cela apparaît encore plus explicitement sur la figure 2, l'armature rigide 5 a une configuration tout-à-fait particulière puisqu'en partie basse elle se termine par une configuration en forme de V.As it appears even more explicitly in FIG. 2, the rigid armature 5 has a very particular configuration since in the lower part it ends in a V-shaped configuration.

Dans l'exemple illustré, à titre non-exclusif, l'armature 5 est composée de deux lames métalliques , notamment en aluminium, qui sont parallèles en partie haute 1a du sac puis qui, en partie basse 2b du sac, convergent l'une vers l'autre jusqu'à être réunies notamment par soudage, ce qui donne à cette armature 5 la forme en V dans sa partie inférieure 5a.In the example illustrated, non-exclusively, the armature 5 is composed of two metal blades, including aluminum, which are parallel in the upper part 1a of the bag and which, in the lower part 2b of the bag, converge one to the other until being joined together in particular by welding, which gives this frame 5 the V shape in its lower part 5a.

L'extrémité inférieure qui correspond à la tête 5b du V est de préférence arrondie.The lower end which corresponds to the head 5b of the V is preferably rounded.

La configuration en V de la partie inférieure 5a de l'armature 5 forme un angle au sommet α, la valeur de l'angle α étant prise selon les bords les plus opposés 8, 9 de l'armature 5.The V configuration of the lower part 5a of the armature 5 forms an angle at the apex α, the value of the angle α being taken along the most opposite edges 8, 9 of the armature 5.

La tête 5b de l'armature 5 est , dans la configuration normale du sac, disposée à proximité du bord 7 inférieur du dos 3 du sac.The head 5b of the frame 5 is, in the normal configuration of the bag, disposed near the lower edge 7 of the back 3 of the bag.

L'ensemble ceinture 6 est représenté , à la figure 3, vu de l'arrière, c'est-à-dire la face visible étant celle qui sera en contact avec le dos 3 du sac lors de son assemblage avec celui-ci. Cet ensemble ceinture 6 comporte, de manière centrale et symétrique par rapport à l'axe DD' une poche arrière 10 dont l'ouverture 11 est tournée vers le haut. Cette poche 10 a une configuration en V d'angle au sommet β, cet angle β étant supérieur à l'angle α précité.The belt assembly 6 is shown in Figure 3, seen from the rear, that is to say the visible face being the one that will be in contact with the back 3 of the bag during its assembly therewith. This belt assembly 6 comprises, centrally and symmetrically with respect to the axis DD 'a rear pocket 10 whose opening 11 is turned upwards. This pocket 10 has a vertex angle V configuration β, this angle β being greater than the angle α above.

Dans un exemple de réalisation , la poche 10 est une poche plate réalisée en rapportant par couture sur la face arrière 12 de l'ensemble ceinture 6 une ou plusieurs pièces. On comprend que la face arrière 12 sur laquelle est rapportée cette poche 1O doit présenter une surface plane de manière à ne pas gêner le pivotement angulaire de la partie inférieure 5a de l'armature 5 lorsque celle-ci sera introduite dans la poche 10, comme illustrée à la figure 3. De préférence également pour ne pas gêner ce pivotement angulaire , la face arrière 12 de l'ensemble ceinture 6 a un état de surface à faible coefficient de frottement par rapport au matériau constituant la partie inférieure 5a de l'armature 5 , par exemple lors de la confection de la poche 1O on rapporte sur la face arrière 12 une plaque de matière plastique lisse. Par ailleurs , la partie médiane en V de l'ensemble ceinture en regard de la poche 10 peut avantageusement comporter une plaque de rigidification. Egalement le fond 10a de la poche 10 peut être renforcé par tout moyen approprié.In an exemplary embodiment, the pocket 10 is a flat pocket made by sewing on the rear face 12 of the belt assembly 6 one or more pieces. It is understood that the rear face 12 on which this pocket 10 is attached must have a flat surface so as not to hinder the angular pivoting of the lower part 5a of the armature 5 when it is introduced into the pocket 10, as illustrated also in FIG. 3. Also preferably so as not to impede this angular pivoting, the rear face 12 of the belt assembly 6 has a surface state with a low coefficient of friction with respect to the material constituting the lower part 5a of the armature 5, for example when making the pocket 10 is reported on the rear face 12 a smooth plastic plate. Moreover, the median V part of the belt assembly facing the pocket 10 may advantageously comprise a stiffening plate. Also the bottom 10a of the pocket 10 can be reinforced by any appropriate means.

Sur la figure 3 est illustrée la partie inférieure 5a de l'armature 5 après son introduction dans la poche 10, cette introduction étant faite de manière centrée par rapport à l'axe DD'. Cette introduction ne pose pas de difficulté particulière , étant en particulier facilitée par glissement de la tête 5b sur la face 12 arrière de l'ensemble ceinture à état de surface amélioré.In FIG. 3 is illustrated the lower part 5a of the armature 5 after it has been introduced into the pocket 10, this insertion being done centrally with respect to the axis DD '. This introduction does not pose any particular difficulty, being in particular facilitated by sliding of the head 5b on the rear face 12 of the belt assembly with improved surface condition.

Dans la position centrée qui est illustrée à la figure 3 , les bords extrêmes 8, 9 de la partie inférieure 5a de l'armature 5 sont distants des bords latéraux internes 13, 14 de la poche 10 d'un angle γ qui est égal à ½ (β - α), cet angle γ correspondant à la capacité de pivotement angulaire de l'ensemble ceinture 6 de part et d'autre de l'axe de symétrie DD'. Si le mouvement généré lors du déplacement de l'utilisateur correspond à un pivotement angulaire supérieur à γ, le bord interne 13,14 correspondant de la poche 10 vient en butée contre le bord 8 , 9 de l'armature et est empêché de pivoter au-delà de l'angle γ, ce qui provoque alors une contrainte au niveau du sac 1. En conséquence il importe au fabricant de déterminer précisément la valeur de l'angle γ en fonction du type de sac et de son utilisation.In the centered position which is illustrated in FIG. 3, the extreme edges 8, 9 of the lower part 5a of the armature 5 are spaced from the internal lateral edges 13, 14 of the pocket 10 by an angle γ which is equal to ½ (β-α), this angle γ corresponding to the angular pivoting capacity of the belt assembly 6 on either side of the axis of symmetry DD '. If the movement generated during the displacement of the user corresponds to an angular pivoting greater than γ, the corresponding inner edge 13, 14 of the pocket 10 abuts against the edge 8, 9 of the armature and is prevented from pivoting beyond the angle γ, which then causes a constraint on the bag 1. Consequently, it is important for the manufacturer to determine precisely the value of the angle γ depending on the type of bag and its use.

C'est un avantage de l'invention que de pouvoir facilement, pour un même sac, de pouvoir proposer des ensembles ceinture 6 ayant des poches d'angle β de valeurs différentes ou encore des armatures 5 ayant des parties inférieures d'angle α de valeurs différentes , en fonction des utilisations possibles.It is an advantage of the invention that it is easily possible, for the same bag, to be able to propose belt assemblies 6 having pockets of angle β of different values or else armatures 5 having lower portions of angle α of different values, depending on the possible uses.

Dans l'exemple illustré, on a représenté des moyens de fixation de l'ensemble ceinture 6 sur le dos 3 du sac. Il est cependant à noter qu'en toute logique cette fixation n'est pas strictement nécessaire lors de l'utilisation proprement dite du sac , dans la mesure où le report de charge de l'armature 5 sur le fond 10a de la poche 10 de l'ensemble ceinture 6 assure une solidarisation naturelle de l'ensemble des éléments du sac.In the example illustrated, there is shown fastening means of the belt assembly 6 on the back 3 of the bag. It should be noted, however, that logically this fixation is not strictly necessary during the actual use of the bag, insofar as the load transfer of the armature 5 on the bottom 10a of the pocket 10 of the belt assembly 6 provides a natural bonding of all the elements of the bag.

Plus précisément dans l'exemple illustré, les moyens de fixation sont constitués par une bande souple 15 et par des éléments de fermeture auto-agrippants du type à crochets et à boucles. La bande souple 15 a une extrémité qui est fixée, notamment par couture, selon le bord 7 inférieur du dos 3 du sac, à la jonction du dos 3 avec le fond 4 , de manière centrée par rapport à l'axe DD'. Cette bande 15 comporte des éléments auto-agrippants, par exemple des boucles 16, sur la face visible sur la figure 2. La face avant 17 de la partie médiane de l'ensemble ceinture 6 comprend des éléments auto-agrippants, des crochets 18 dans l'exemple précité, permettant la fixation amovible de la bande souple 15 sur ladite face avant 17 lors du repliement de ladite bande souple 15 selon sa ligne 19 de fixation avec le bord inférieur 7 du dos 3 du sac. Ainsi après introduction de la partie inférieure 5a de l'armature 5 dans la poche arrière 10 de l'ensemble ceinture 6 , il suffit à l'utilisateur de replier la bande souple 15 et de la fixer sur la face avant 17 de l'ensemble ceinture 6 grâce à l'accrochage des éléments auto-agrippants 16,18. Le fait que cette fixation soit réalisée à l'aide d'une bande souple 15 n'altère pas la capacité de pivotement angulaire de l'ensemble ceinture par rapport à l'armature 5, la bande étant capable de se déformer sans contrainte lors de ce pivotement.More specifically in the example shown, the fastening means are constituted by a flexible strip 15 and hook-and-loop hook-and-loop fasteners. The flexible band 15 has one end which is fixed, in particular by sewing, along the lower edge 7 of the back 3 of the bag, at the junction of the back 3 with the bottom 4, centrally with respect to the axis DD '. This strip 15 comprises self-gripping elements, for example loops 16, on the visible face in FIG. 2. The front face 17 of the middle part of the belt assembly 6 comprises self-gripping elements, hooks 18 in the aforementioned example, allowing the removable strip 15 to be secured to said front face 17 during the folding of said flexible strip 15 along its fastening line 19 with the lower edge 7 of the back 3 of the bag. Thus after introduction of the lower part 5a of the frame 5 in the rear pocket 10 of the belt assembly 6, it is sufficient for the user to fold the flexible strip 15 and fix it on the front face 17 of the assembly belt 6 thanks to the hanging of self-gripping elements 16,18. The fact that this fixing is carried out using a flexible band 15 does not affect the angular pivoting capacity of the belt assembly relative to the armature 5, the band being able to deform without stress during this pivoting.

Dans l'exemple illustré le sac à dos 1 comporte , au niveau de la partie lombaire de l'utilisateur, deux jeux de moyens de rembourrage, à savoir un premier jeu qui est constitué des deux bourrelets latéraux de l'ensemble ceinture et un second jeu qui est constitué par un bourrelet central, fixé sur le dos du sac et qui est apte à venir se loger entre les deux bourrelets latéraux de l'ensemble ceinture une fois que ledit ensemble ceinture a été monté sur la partie inférieure de l'armature.In the illustrated example the backpack 1 comprises, at the level of the lumbar portion of the user, two sets of padding means, namely a first set which consists of the two lateral beads of the belt assembly and a second game which is constituted by a central bead, fixed on the back of the bag and which is adapted to be housed between the two lateral beads of the belt assembly once said belt assembly has been mounted on the lower part of the frame .

Plus précisément , l'ensemble ceinture 6 comporte de part et d'autre de la zone centrale dans laquelle se situe la poche 10, deux bourrelets 20,21, de structure conventionnelle , chacun étant terminé par des pièces 22 permettant , par coopération généralement par encliquetage, de refermer l'ensemble ceinture autour de la taille de l'utilisateur. Cet encastrement du bourrelet central 23 entre les deux bourrelets latéraux 20,21 est parfaitement visible sur la figure 1. Le bourrelet central 23 est fixé , notamment par couture , selon le bord 7 inférieur du dos 3 du sac, de manière centrale et notamment sous la bande souple 15 comme cela apparaît sur la figure 2 . Pour obtenir l'encastrement illustré à la figure 1, ce bourrelet central 23 a dans la portion qui est proche du bord inférieur 7 du dos 3 une configuration sensiblement trapézoïdale, apte à venir s'appliquer dans l'espace délimité dans les deux bourrelets latéraux 20,21. Dans l'exemple illustré, le bourrelet central 23 a globalement la forme d'un losange. Il peut bien sûr avoir toute autre forme.More specifically, the belt assembly 6 comprises on either side of the central zone in which the pocket 10 is located, two beads 20, 21, of conventional structure, each being terminated by parts 22 allowing, by cooperation generally by snap, to close the waistband around the waist of the user. This embedding of the central bead 23 between the two lateral beads 20,21 is perfectly visible in Figure 1. The central bead 23 is fixed, in particular by stitching, along the lower edge of the back 3 of the bag, centrally and especially under the flexible strip 15 as shown in FIG. To obtain the recess illustrated in FIG. 1, this central bead 23 has in the portion that is close to the lower edge 7 of the back 3 a substantially trapezoidal configuration, able to be applied in the space defined in the two lateral beads. 20.21. In the example shown, the central bead 23 has the overall shape of a rhombus. It can of course have any other form.

Ce bourrelet central 23 est équipé d'un moyen de fixation sur le dos 3 du sac qui est par exemple constitué par une bande souple 24, prolongeant longitudinalement ledit bourrelet 23, laquelle bande est équipée d'éléments auto-agrippants par exemple des boucles sur la face arrière 24a de celle-ci , non visible sur les figures 2, 4 et 5 et partiellement visible sur la figure 1.This central bead 23 is equipped with a fastening means on the back 3 of the bag which is for example constituted by a flexible band 24, longitudinally extending said bead 23, which band is equipped with self-gripping elements for example loops on the rear face 24a thereof, not visible in Figures 2, 4 and 5 and partially visible on the figure 1.

La fixation de la bande 24 sur le dos du sac intervient par intermédiaire d'éléments auto-agrippants , notamment du type crochets, placés sur la face intérieure d'un fourreau 25 fixé longitudinalement sur le dos 3 du sac et dans lequel peut pénétrer la bande 24.The fastening of the band 24 on the back of the bag is effected by means of self-gripping elements, in particular of the hook type, placed on the inside face of a sleeve 25 fixed longitudinally on the back 3 of the bag and into which the band 24.

Une fois qu'il a introduit la partie inférieure 5a de l'armature 5 dans la poche 10 de l'ensemble ceinture et qu'il a fixé ledit ensemble ceinture 6 sur le dos du sac en repliant la bande 15 en sorte de faire coopérer les éléments auto-agrippants 16, 18, l'utilisateur replie ensuite le bourrelet central 23 en l'encastrant entre les deux bourrelets latéraux 20, 21 et fixe ledit bourrelet 23 au dos du sac en faisant pénétrer la bande 24 à l'intérieur du fourreau 25, en sorte d'obtenir la coopération des éléments auto-agrippants portés sur la bande 24 et sur la face intérieure correspondante du fourreau 25. Il aurait été bien sûr possible de disposer des éléments auto-agrippants directement sur le dos du sac , mais un détachement accidentel aurait pu se produire beaucoup plus facilement dans ce mode de réalisation comparativement à celui qui a été décrit et illustré mettant en oeuvre un fourreau. En effet dans ce cas le fourreau sert de protection aux éléments auto-agrippants et le désassemblage du bourrelet central par rapport au dos du sac nécessite obligatoirement l'intervention manuelle de l'utilisateur.Once it has introduced the lower part 5a of the frame 5 into the pocket 10 of the belt assembly and that it fixed said belt assembly 6 on the back of the bag by folding the strip 15 so as to cooperate the self-gripping elements 16, 18, the user then folds the central bead 23 by embedding it between the two lateral beads 20, 21 and fixes said bead 23 at the back of the bag by penetrating the band 24 inside the sheath 25, so as to obtain the cooperation of the self-gripping elements carried on the band 24 and on the corresponding inner face of the sheath 25. It would have been of course possible to have the self-gripping elements directly on the back of the bag, but an accidental detachment could have occurred much more easily in this embodiment compared to that which has been described and illustrated using a sheath. Indeed in this case the sleeve serves to protect the self-gripping elements and the disassembly of the central bead relative to the back of the bag necessarily requires manual intervention of the user.

La présence du bourrelet central 23 entre les deux bourrelets latéraux 20,21 n'est pas strictement nécessaire, l'ensemble ceinture pouvant comporter un seul bourrelet continu sur toute sa longueur, notamment dans le cas où il n'y a pas de moyen de fixation de l'ensemble ceinture sur le dos du sac. Il suffit de ménager sur la face arrière de l'ensemble ceinture dans la partie médiane une zone pour l'intégration de la poche 10 comme décrit ci-dessus, avec de préférence une plaque de rigidification constituant la paroi interne de ladite poche. Dans ce cas l'autre face de la plaque de rigidification est recouverte par ledit bourrelet continu.The presence of the central bead 23 between the two lateral beads 20,21 is not strictly necessary, the belt assembly may comprise a single continuous bead along its entire length, especially in the case where there is no means of fastening the belt assembly on the back of the bag. It is sufficient to provide on the rear face of the belt assembly in the middle part an area for the integration of the pocket 10 as described above, preferably with a stiffening plate constituting the inner wall of said pocket. In this case the other face of the stiffening plate is covered by said continuous bead.

Dans le cas d'une fixation de l'ensemble ceinture 6 grâce à une bande souple 15 comme décrit ci-dessus, il suffit que sur la face avant de l'ensemble ceinture soit ménagé un espace comportant les éléments de coopération , notamment auto-agrippants, avec la bande souple pour réaliser la fixation en question. Dans ce cas les deux bourrelets latéraux 20, 21 peuvent être prolongés jusqu'à cet espace de largeur plus réduite.In the case of a fastening of the belt assembly 6 thanks to a flexible band 15 as described above, it is sufficient that on the front face of the belt assembly is provided a space with the cooperation elements, in particular self-gripping, with the flexible band to achieve the fixation in question. In this case the two lateral beads 20, 21 can be extended to this space of smaller width.

La présence du bourrelet central 23 tel que décrit précédemment présente un avantage particulier, dans la mesure où il permet de créer un phénomène d'amortissement lors du pivotement angulaire de l'ensemble ceinture par rapport au sac. En effet, si l'on se réfère à la figure 1 , les deux bourrelets latéraux 20,21 sont au contact ou quasiment au contact avec le bourrelet central 23 lorsque l'ensemble ceinture 6 est en position centrée par rapport à l'axe DD'. Lors du pivotement angulaire de l'ensemble ceinture 20, par exemple selon la flèche F de la figure 1, il se produit un écrasement relatif des zones 20a et 23a en contact l'une avec l'autre du bourrelet latéral 20 et du bourrelet central 23. Ceci limite sans l'empêcher le pivotement angulaire de l'ensemble ceinture 6. Il importe donc que dans les zones susceptibles de subir cet écrasement, les bourrelets ou tout au moins l'un des deux bourrelets en contact soit exempt localement d'élément interne de rigidification qui empêcherait cet écrasement et qui constituerait donc un obstacle au pivotement angulaire. De plus le matériau de rembourrage, notamment la mousse, constituant les bourrelets sont déterminés en conséquence.The presence of the central bead 23 as described above has a particular advantage, insofar as it makes it possible to create a damping phenomenon during the angular pivoting of the belt assembly relative to the bag. Indeed, if we refer to Figure 1, the two lateral beads 20,21 are in contact or almost in contact with the central bead 23 when the belt assembly 6 is in a centered position relative to the axis DD . During the angular pivoting of the belt assembly 20, for example according to the arrow F of FIG. 1, there is a relative crushing of the zones 20a and 23a in contact with each other of the lateral bead 20 and the central bead. 23. This limits without preventing the angular pivoting of the belt assembly 6. It is therefore important that in areas susceptible to this crushing, the beads or at least one of the two beads in contact is locally free of internal stiffening element that would prevent this crushing and thus constitute an obstacle to angular pivoting. In addition, the padding material, in particular the foam, constituting the beads are determined accordingly.

La présente invention n'est pas limitée à l'exemple précis de réalisation qui a été décrit ci-dessus à titre non-exhaustif. En particulier la fixation de l'ensemble ceinture sur le dos du sac pourrait être obtenue par d'autres moyens que la bande souple à éléments auto-agrippants. Elle pourrait notamment être obtenue par un système d'encliquetage sur la partie inférieure de l'armature, selon l'axe de pivotement, perpendiculaire au plan du dos du sac.The present invention is not limited to the specific embodiment which has been described above non-exhaustively. In particular the fixing of the belt assembly on the back of the bag could be obtained by means other than the flexible band with self-gripping elements. It could in particular be obtained by a latching system on the lower part of the frame, along the axis of pivot, perpendicular to the plane of the back of the bag.

Claims (8)

  1. A rucksack comprising a bag per se having a back panel and, amongst other things, a belt assembly (6) and a rigid frame (5) secured to the back panel (3) and the belt assembly (6), said belt assembly (6) including, in its middle and rear portion, an upwardly open pocket (10) suitable for serving as a housing for receiving the bottom portion (5a) of the frame (5) while allowing the belt assembly (6) to pivot angularly to some extent relative to the remainder of the rucksack, the rucksack being characterised in that the bottom portion (5a) of the frame (5) has a V-shaped configuration with furthest-apart edges (8, 9) of angle α at the apex, and the pocket, (10) has a V-shaped configuration with inside side edges (13, 14) of angle β at the apex, where is greater than α, with said inside side edges (13, 14) coming into abutment against the furthest-apart edges (8, 9) thus preventing pivoting beyond an angle γ equal to (β-α)/2.
  2. A rucksack according to claim 1, characterised in that the rigid frame (5), at least in its V-shaped bottom portion (5a), is constituted by a flat bar of small thickness, and the pocket (10) is a flat pocket applied to the rear face (12) of the belt assembly (6), in particular by stitching.
  3. A rucksack according to claim 2, characterised in that the bottom end of the frame, forming the V-shaped point (5b) presents a rounded shape, and the bottom (10a) of the pocket (10) includes, in register with said point, a zone that is reinforced.
  4. A rucksack according to one of claims 1 to 3, characterised in that the middle portion of the belt assembly includes a V-shaped stiffener plate constituting the inside wall of the pocket, said stiffener plate preferably presenting a surface state with a low coefficient of friction relative to the material constituting the V-shaped bottom portion of the frame.
  5. A rucksack according to one of claims 1 to 4, characterised in that it includes releasable fastener means for fastening the belt assembly (6) to the back (3) of the rucksack or to the frame, and serving, in the inactive position, to allow the bottom portion (5a) of the frame (5) to be inserted into the V-shaped pocket (10), and in the active position, to fasten the belt assembly (6) to the back (3) or to the frame of the rucksack, while not impeding the capacity for the belt assembly (6) to pivot angularly.
  6. A rucksack according to claim 5, characterised in that the fastening means comprises a flexible strip (15) having one end secured, in particular by stitching, to the bottom edge (7) of the back (3) of the rucksack in a middle portion thereof and that can be secured in releasable manner, in particular by self-gripping means (16, 18) of the hook and loop type, to the front face (17) of the belt assembly (6) after the bottom portion (5a) of the frame (5) has been placed in the V-shaped pocket (10).
  7. A rucksack according to one of claims 1 to 6, characterised in that it includes two sets of padding means, and in particular:
    - a first set constituted by two side pads (20, 21) of the belt assembly (6) disposed on either side of the front wall of the V-shaped pocket (10), and in particular on either side of its stiffener plate, the inside edges of the two side pads (20, 21) defining a substantially V-shaped space; and
    - a second set constituted by a central pad (23) that is substantially V-shaped, with its bottom portion secured, in particular by stitches, to the bottom edge (7) of the back (3) of the rucksack, said central pad (23) being suitable for engaging in the V-shaped space between the two side pads (20, 21) and including releasable fastener means, in particular self-gripping means, for securing it to the back of the rucksack, in such a manner that during angular pivoting of the belt assembly (20), the contacting zones (20a, 23a) of the side pad (20) and of the central pad (23) flatten against each other to some extent.
  8. A rucksack according to claim 7, characterised in that the means for passing the central pad (23) comprise a longitudinal strip (24) extending said central pad (23) and a downwardly-open longitudinal sheath (25) secured to the back (3) of the rucksack and suitable for receiving the longitudinal strip (24) which can be secured releasably to one of the inside faces of said sheath (25), in particular by self-gripping means.
EP04370024A 2003-08-12 2004-08-11 Backpack with pivotal hip belt Expired - Fee Related EP1506724B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0309856 2003-08-12
FR0309856A FR2858754B1 (en) 2003-08-12 2003-08-12 BACKPACK EQUIPPED WITH AN ANGULAR PIVOT BELT ASSEMBLY

Publications (2)

Publication Number Publication Date
EP1506724A1 EP1506724A1 (en) 2005-02-16
EP1506724B1 true EP1506724B1 (en) 2008-01-02

Family

ID=33561164

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04370024A Expired - Fee Related EP1506724B1 (en) 2003-08-12 2004-08-11 Backpack with pivotal hip belt

Country Status (7)

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US (1) US7770766B2 (en)
EP (1) EP1506724B1 (en)
CN (1) CN100446693C (en)
DE (1) DE602004010966T2 (en)
ES (1) ES2299813T3 (en)
FR (1) FR2858754B1 (en)
WO (1) WO2005016066A1 (en)

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FR2952809B1 (en) * 2009-11-25 2011-12-23 Gibaud LUMBAR SUPPORT BELT
US10299575B2 (en) * 2010-07-23 2019-05-28 Vanessa Andrews Sports water bottle holder
US9271559B2 (en) 2011-08-29 2016-03-01 Mystery Ranch Limited Body armor support harness
US8857681B2 (en) * 2012-03-08 2014-10-14 The United States Of America As Represented By The Secretary Of The Air Force Load carriage connector and system
US9220333B2 (en) * 2013-11-27 2015-12-29 Msa Technology, Llc Adjustable lumbar support for mounting on a backpack and backpack having the same
US10368626B2 (en) * 2015-04-30 2019-08-06 Point Blank Enterprises, Inc. Carrier system and subassembly thereof
US20170196345A1 (en) * 2015-08-05 2017-07-13 Granite Gear Llc Adjustable backpack
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EP3687338B1 (en) * 2017-09-27 2021-07-28 Globe (Jiangsu) Co., Ltd. Pivotal carrier assembly for a harness
US20230060981A1 (en) * 2021-08-24 2023-03-02 Emerson Electric Co. Interchangeable harness assembly for a user-worn electrical appliance
DE102022131067A1 (en) 2022-11-23 2024-05-23 Vaude Sport Gmbh & Co. Kg Back carrying device with carrying frame

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Also Published As

Publication number Publication date
DE602004010966T2 (en) 2009-01-02
CN1835695A (en) 2006-09-20
FR2858754B1 (en) 2006-03-10
DE602004010966D1 (en) 2008-02-14
EP1506724A1 (en) 2005-02-16
ES2299813T3 (en) 2008-06-01
CN100446693C (en) 2008-12-31
US7770766B2 (en) 2010-08-10
FR2858754A1 (en) 2005-02-18
WO2005016066A1 (en) 2005-02-24
US20080164293A1 (en) 2008-07-10

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