FR2851437A1

FR2851437A1 - Adjustable shoulder strap system for back pack, has primary and secondary adjustable belts of which primary belt is associated with upper and lower belt loops that enable change of course of primary belt

Info

Publication number: FR2851437A1
Application number: FR0302261A
Authority: FR
Inventors: Breton Yann Le
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-02-25
Filing date: 2003-02-25
Publication date: 2004-08-27

Abstract

The device has primary and secondary adjustable belts (1,2) that serve as a component of a main shoulder strap and an attached belt that buckles waist of a user. The primary elastic belt assures a joint between shoulder belt (3) and the low corners (4) of a back pack. The primary belts are associated with upper and lower belt loops that enable to change the course of the primary belt as a function of certain solicitation.

Description

La présente invention concerne un dispositif de bandoulières évolutives,The present invention relates to an evolving strap device,

collaborantes etcollaborating and

enveloppantes avec articulations, pour sacs à dos et autres accessoires, destiné à améliorer l'ergonomie et le confort d'utilisation qui restent encore à perfectionner dans ce domaine. enveloping with joints, for backpacks and other accessories, intended to improve ergonomics and comfort of use which still need to be improved in this area.

Le dispositif selon l'invention permet de répondre à ce besoin, il comporte en effet selon une 5 première caractéristique des éléments extensibles: les courroies élastiques associées aux bretelles d'épaules et au corps du sac. The device according to the invention makes it possible to meet this need, it in fact comprises, according to a first characteristic of the extensible elements: the elastic straps associated with the shoulder straps and the body of the bag.

Ces éléments extensibles combinés entre eux forment une trame ou un canevas qui offre une fois mis en tension une surface de contact latérale augmentée de part et d'autre du sac procurant à son porteur un excellent maintien. These extensible elements combined together form a frame or a canvas which, once tensioned, provides an increased lateral contact surface on either side of the bag providing the wearer with excellent support.

Selon une deuxième caractéristique toutes les extrémités des courroies élastiques convergent vers une pièce d'accroche faisant office d'articulation, permettant de les solliciter de manière simultanée, en modifiant leur géométrie. According to a second characteristic, all the ends of the elastic belts converge towards a hooking piece acting as an articulation, making it possible to stress them simultaneously, by modifying their geometry.

Selon une dernière caractéristique des aménagements particuliers sont nécessaires au bon fonctionnement des courroies, c'est pourquoi le sac possède certaines pièces spécifiques 15 permettant un développement satisfaisant de celles-ci. According to a last characteristic, particular arrangements are necessary for the proper functioning of the belts, this is why the bag has certain specific parts 15 allowing satisfactory development of these.

Selon des modes particuliers de réalisation: Le volume et la forme du sac ou de l'accessoire peuvent varier de façon conséquente, ce qui ne change pas l'organisation du dispositif Les courroies peuvent être dotées de propriété élastique, ou non. According to particular embodiments: The volume and the shape of the bag or of the accessory can vary considerably, which does not change the organization of the device. The belts can have elastic property, or not.

Les dessins annexés illustrent l'invention: Les figures 1; 2; 3; 4; 5; 6 représentent le sac en situation, c'est à dire porté par un mannequin, ce qui permet de comprendre son fonctionnement et la gestuelle y étant associée. 25 Les figures 7; 8; 9; 10; 1 1; 12 représentent le sac en situation selon un autre mode de réalisation. The accompanying drawings illustrate the invention: Figures 1; 2; 3; 4; 5; 6 represent the bag in situation, that is to say carried by a mannequin, which makes it possible to understand its operation and the gesture being associated therewith. Figures 7; 8; 9; 10; 1 1; 12 represent the bag in situation according to another embodiment.

En référence à ces dessins, le dispositif comporte des éléments extensibles qui font à la fois office de composantes des bandoulières principales et de sangles annexes pour un bouclage au niveau de la taille, ce sont les courroies élastiques primaires (1) et secondaire (2), (fig. 3). Ces 30 courroies élastiques primaires (1) et secondaires (2) s'organisent en réseau, c'est à dire qu'elles s'associent, collaborent et travaillent ensemble jusqu'à créer un canevas ou un filet à géométrie variable, capable de se déformer pour mieux envelopper les flancs du porteur lui procurant ainsi un excellent maintien. Les courroies primaires (1) remplacent les éléments classiques qui assurent la jonction entre les sangles d'épaules (3), (fig. 3) et les coins bas (4), (fig. 3) du sac à dos. Elles viennent jouer entre ces deux supports et leur sont associées par 5 l'intermédiaire de pièces de liaison qui sont des éléments rigides de métal ou de plastique appelé pièces de déviation. Ces pièces de déviation sont en quelque sorte des passants, dont le rôle est assimilable à celui de poulies, en effet, elles infléchissent la course des courroies élastiques primaires (1), les retournant sur elles même et leur permettant de changer de direction en fonction des sollicitations du moment. On distingue les pièces de déviation haute 10 (5), (fig. 3), fixées aux extrémités libres des sangles d'épaules (3) par rivets ou par couture, elles captent et canalisent les extrémités hautes des courroies élastiques primaires (1). On distingue ensuite les pièces de déviation basses (6), (fig. 3), fixées aux coins bas (4) du sac à dos par rivets ou par couture, elles captent et canalisent les extrémités basses des courroies élastiques primaires (1). Lorsque les extrémités des courroies élastiques primaires (1) 15 émergent des pièces de déviation elles se retournent et convergent l'une vers l'autre pour venir se réunir par l'intermédiaire d'anneaux (7), (fig. 3) qui sont des pièces de jonction et d'articulation. Les extrémités de chaque courroie élastique primaire (1) viennent s'accrocher par couture de part et d'autre de leur anneau (7) , de sorte que de chaque côté du sac à dos nous observons une courroie double en forme de boucle. Les courroies élastiques secondaires (2) 20 viennent compléter le dispositif précédemment décrit et visent à augmenter encore l'efficacité de celui-ci. Les courroies élastiques secondaires (2) viennent jouer entre les extrémités libres des sangles d'épaules (3) auxquelles elles sont associées par couture et les flancs du sac, un peu en dessous des aisselles, auxquels elles sont associées par des pièces de liaison que nous appelons pièces de déviation secondaires (8), (fig. 3). Les pièces de déviation secondaires (8) 25 de même nature que celles décrites auparavant, sont fixées par rivets ou par couture aux flancs du sac à dos, elles captent et canalisent les courroies élastiques secondaires (2) qui viennent jusqu'à celles-ci perpendiculairement par rapport au corps du sac. Au passage des pièces de déviation secondaires (8), les courroies élastiques secondaires (2) se retournent sur ellesmêmes et changent de direction pour aller s'accrocher par couture aux bords les plus éloignés 30 des anneaux (7). Chaque anneau (7) de chacun des côtés du sac réuni donc trois extrémités de courroies élastiques différentes émanant de trois directions différentes. Chaque extrémité des courroies élastiques secondaires (2) possède au-delà de son point d'accroche à l'anneau (7) un petit excédent de courroie permettant l'accroche d'une partie mâle (9), (fig. 4) d'un système quelconque de bouclage pour la partie droite du sac à dos et d'une partie femelle (10), (fig. 4) d'un système quelconque de bouclage pour sa partie gauche. With reference to these drawings, the device comprises extendable elements which act both as components of the main shoulder straps and of annexed straps for buckling at the waist, these are the primary (1) and secondary (2) elastic belts. , (fig. 3). These 30 primary (1) and secondary (2) elastic belts are organized in a network, that is to say that they associate, collaborate and work together until creating a canvas or a net with variable geometry, capable of deform to better wrap the flanks of the wearer thus providing excellent support. The primary belts (1) replace the conventional elements which provide the junction between the shoulder straps (3), (fig. 3) and the bottom corners (4), (fig. 3) of the backpack. They come to play between these two supports and are associated with them by means of connecting pieces which are rigid elements of metal or plastic called deflection pieces. These deflection pieces are, in a way, passers-by, whose role is comparable to that of pulleys, in fact, they influence the course of the primary elastic belts (1), turning them over themselves and allowing them to change direction depending requests of the moment. We distinguish the high deflection pieces 10 (5), (fig. 3), fixed to the free ends of the shoulder straps (3) by rivets or by sewing, they capture and channel the high ends of the primary elastic belts (1) . We then distinguish the low deflection pieces (6), (fig. 3), fixed to the bottom corners (4) of the backpack by rivets or by sewing, they capture and channel the lower ends of the primary elastic belts (1). When the ends of the primary elastic belts (1) 15 emerge from the deflection pieces they turn over and converge towards each other to come together by means of rings (7), (fig. 3) which are connecting and hinge parts. The ends of each primary elastic strap (1) are hooked on each side of their ring (7), so that on each side of the backpack we observe a double loop-shaped strap. The secondary elastic belts (2) 20 complete the device described above and aim to further increase the efficiency thereof. The secondary elastic belts (2) come to play between the free ends of the shoulder straps (3) to which they are associated by sewing and the sides of the bag, a little below the armpits, to which they are associated by connecting pieces that we call secondary deflection pieces (8), (fig. 3). The secondary deflection pieces (8) 25 of the same kind as those described above, are fixed by rivets or by sewing to the sides of the backpack, they capture and channel the secondary elastic belts (2) which come to them perpendicular to the body of the bag. When the secondary deflection pieces (8) pass, the secondary elastic belts (2) turn over on themselves and change direction so as to sew on the most distant edges 30 of the rings (7). Each ring (7) on each side of the bag therefore brings together three ends of different elastic belts emanating from three different directions. Each end of the secondary elastic belts (2) has beyond its point of attachment to the ring (7) a small excess of strap allowing the attachment of a male part (9), (fig. 4) d 'any looping system for the right part of the backpack and a female part (10), (fig. 4) of any looping system for its left part.

Selon un autre mode de réalisation les anneaux (7) peuvent être remplacés par un système d'articulation différent. Dans ce cas de figure les extrémités des courroies élastiques primaires (1) et secondaires (2) sont renforcées par des oeillets (l 1), (fig. 12) métalliques qui viennent se superposer. Ces oeillets sont solidarisés par un rivet (12), (fig. 12) qui leur permet néanmoins de coulisser les uns par rapport au autre, autorisant ainsi le jeu des articulations. According to another embodiment, the rings (7) can be replaced by a different articulation system. In this case, the ends of the primary (1) and secondary (2) elastic belts are reinforced by metal eyelets (l 1) (fig. 12) which overlap. These eyelets are secured by a rivet (12), (fig. 12) which nevertheless allows them to slide relative to each other, thus allowing the play of the joints.

10 Lorsque le porteur désire un très bon maintien de son sac à dos, il lui suffit de saisir la partie mâle (9) d'un système quelconque de bouclage et la partie femelle (10) d'un système quelconque de bouclage puis de les associer. Ce faisant, le porteur du sac entraîne les anneaux (7) ou les rivetages et donc provoque simultanément la mise en tension des courroies 15 élastiques primaires et secondaires. Il modifie dans le même temps la géométrie du réseau de courroies qui devient très enveloppant induisant un contact très ferme avec le sac. Les pièces de déviation accompagnent les changements de direction des courroies leur permettant de virer bien à plat. Quand le porteur du sac desserre l'étreinte du dispositif les courroies refluent retrouvant leur positionnement initial et ne laissant pas d'excédent de sangle. 2010 When the wearer desires very good support for his backpack, he need only grasp the male part (9) of any looping system and the female part (10) of any looping system and then associate. In doing so, the carrier of the bag drives the rings (7) or the rivets and therefore simultaneously causes the tensioning of the primary and secondary elastic belts. It modifies at the same time the geometry of the network of belts which becomes very enveloping inducing a very firm contact with the bag. The deflection pieces accompany the changes in direction of the belts allowing them to turn well flat. When the carrier of the bag loosens the grip of the device, the straps flow back to their initial position and leaving no excess strap. 20

Claims

1) Device of evolutive, collaborating and enveloping shoulder straps with articulations for backpacks and other accessories, characterized in that it comprises extensible elements 5 which act both as components of the main shoulder straps and of auxiliary straps, (for a buckling at the waist) these are the primary (1) and secondary (2) elastic belts (fig. 3).

2) Device according to claim 1, characterized in that the primary elastic belts (1) replace the conventional elements which provide the junction between the shoulder straps 10 (3) and the bottom corners (4), (fig. 3) of the backpack.

3) Device according to claim 2, characterized in that the primary belts (1) come to play between these two supports and are associated with them by means of connecting pieces which are rigid elements of metal or plastic called deflection pieces .

4) Device according to claim 3, characterized in that these deflection pieces are somehow passers-by, whose role is comparable to that of pulleys, in fact they affect the course of the primary elastic belts (1), turning them over themselves and allowing them to change direction according to certain demands.

5) Device according to claims 2; 3 and 4, characterized in that there are the upper deflection pieces (5), (fig. 3), fixed to the free ends of the shoulder straps (3) by rivets or by sewing.

6) Device according to claim 5, characterized in that the high deflection pieces (5) capture and channel the upper ends of the primary elastic belts (1).

7) Device according to claims 2; 3 and 4, characterized in that there are the low deflection pieces (6), (fig. 3) fixed to the bottom corners (4) of the backpack by rivets or by sewing.

8) Device according to claim 7, characterized in that the low deflection pieces (6) capture and channel the low ends of the primary elastic belts (1).

9) Device according to claims 6 and 8, characterized in that when the ends of the primary elastic belts (1) emerge from the deflection pieces they turn around and converge towards each other to come together via rings (7), (fig. 3) which are connecting and articulation parts.

10) Device according to any one of claims 1 and 2, characterized in that the secondary elastic belts (2) come to play between the free ends of the shoulder straps (3) with which they are associated by sewing and the sides of the bag , slightly below the armpits, to which they are associated by connecting pieces that we call secondary deviation pieces (8), (fig. 3).

ll) Device according to claim 10, characterized in that the secondary deflection pieces (8) of the same kind as those described above, are fixed by rivets or by sewing to the sides of the backpack.

12) Device according to claim 10, characterized in that the secondary elastic belts (2) go to the secondary deflection pieces (8) by being perpendicular to the body of the bag.

13) Device according to claims 10 and 12, characterized in that the passage of the secondary deflection pieces (8) the secondary elastic belts (2) turn on themselves and change direction to go to sew on the edges plus 15 away from the rings (7).

14) Device according to claim 12, characterized in that each end of the secondary elastic belts (2) has beyond its point of attachment to the ring (7) a small excess of belt allowing the attachment of a part male (9), (fig. 4) of any looping system for the right part of the bag and a female part (10), (fig. 4) 20 of any looping system for the left part .

15) Device according to any one of claims 1 to 8, characterized in that the ends of the primary elastic belts (1) and secondary (2) can be reinforced by eyelets (11), (fig; 12) which come overlap.

16) Device according to claim 15 characterized in that these eyelets (11) are secured by a rivet (12), (fig. 12) which nevertheless allows them to slide relative to each other, thus allowing the play of the joints .