WO2005077223A1

WO2005077223A1 - Bag made of extensible material for transporting lightweight loads on foot

Info

Publication number: WO2005077223A1
Application number: PCT/FR2004/003367
Authority: WO
Inventors: Geneviève Mortemard de Boisse
Original assignee: Mortemard De Boisse Genevieve
Priority date: 2004-01-15
Filing date: 2004-12-23
Publication date: 2005-08-25
Also published as: WO2005077223A8; FR2865117B1; FR2865117A1

Abstract

The invention relates to a bag (1) made of extensible material in the direction of a machine and/or the opposite direction, consisting of a pouch (3) comprising a bottom (10) which is substantially linear and, opposite thereto, an upper peripheral limit, in addition to a grab handle (2) which is generally U-shaped, wherein each end of the wings (5) of the U-structure is joined to the upper limit of the pouch (3) according to a joining line (6). The unit formed by the two joining lines (6) between the grip handle (2) and the upper limit of the pouch (3) affects at least a major part of said upper limit and the direction of the core (4) of the U-structure is orthogonal in relation to that of the bottom (10).

Description

^S stretch fabric for transporting loads of light weight on foot.

The invention relates to the field of bags for the transport on foot of loads of modest weight, such as current domestic purchases (food, cleaning products, etc.). There is currently a need for a bag of large capacity, leaving the hands free, and which, in the empty state, is light and occupies a minimum volume, such that it can be placed, for example, in a garment pocket or a handbag. backpack has the first two properties, but not the last two. In PS.0204B42, it has been proposed a sack, made of at least two layers of material, of the same shape and the same dimensions, superimposed, and .solidated from each other along their periphery so as to define therebetween two pockets accessible by a central opening, said opening being formed in the longitudinal direction of the bag and said material ^ consti u if de at least one of the layers as long as the stretch fabric in the machine direction and / or in the cross direction, ^ υ ϋxi such a satchel allows, thanks to the use of stretch fabric to have a variable volume depending on whether the bag is empty or full, which, combined with the particular geometry of the messenger bag, leads to interesting effects. The object of the present invention is to give another geometry to such a bag, made of fabric which can be extended in the machine direction and / or in the cross direction, namely, a bag made up, in a manner known per se, of a on the one hand, a pocket comprising a substantially linear bottom and, on the other hand, a peripheral upper limit, and on the other hand, a handle having a general U-shape allowing the bag to be carried on the shoulder, each end of the wings of the an éan joined to said upper limit of said pocket along a junction line. However, the use of a stretch fabric for making a bag of such a geometry requires a particular arrangement, failing which the bag * twists "around the handle. This problem is solved by the fact that, according to the invention, the assembly formed pax the two junction lines between the handle and the upper limit of the pocket affect at least a major part of said upper limit, and the direction of the core of the U is orthogonal to that of said background. By "fabric" is meant here both a material obtained by a weaving process, a material obtained by knitting, or even a non-woven material or a film. As used herein, the term "machine direction" refers, in the case of woven materials, to the direction of the warp, in the case of knitted materials, to the direction of the columns of stitches, and in the case of nonwovens and films in the direction of movement of the web in formation in the production facility. As used herein, the term "cross direction" refers to the direction which is perpendicular; in the machine sense defined above. In one embodiment of the invention, the assembly formed by the two joining lines between the handle and the upper limit of the pocket affects the entire length of said limit. In a particularly economical embodiment, the handle and the pocket are in one piece, in which case the junction line is immaterial. Thus, the manufacture of the bag is simplified. In a particular embodiment of the invention, the U-shaped handle takes the form of two isosceles trapezoids joined by their small bases, the small bases corresponding to the core of the U and the large bases to each of the lines of junction. The isosceles trapezoid shape of the handle of the bag is most suitable for carrying the bag on the shoulder. In another particular embodiment of the invention, at least one of the wings of the U is split from substantially the middle of the core of the U to the vicinity of the junction line between the corresponding wing and the limit upper pocket, which slot has a direction orthogonal to that of said core. This slot allows the bag to be filled while the handle is carried by hand or on the shoulder. In practice, it can be envisaged that, under the effect of a load, the bag deforms preferentially in one direction relative to the other. To do this, we choose a fabric whose elongation is different in the machine direction and in the cross direction and, in the bag, the direction of greatest elongation is substantially parallel to the core of the U. Thus, the loading of the bag does not excessively lengthen it, which could hamper walking, but rather gives it volume on the sides. In an empty state, the bag is light, thin and flat and it can be folded and slipped into a pocket or a handbag. To give the bag its optimum properties of lightness and compactness, said fabric has a surface mass of between 60 and 400 g / m ² . In a particular embodiment, the bag includes an interior pocket, in stretch fabric. This pocket allows you to store a mobile phone or keys in the bag, but also to fold the bag, turning it over in this pocket, which minimizes the size of the empty bag. The invention will be better understood, and its advantages will emerge better, in the light of the following detailed description made with reference to the accompanying drawings in which: FIG. 1 represents a first embodiment of the bag according to the invention, laid flat according to the core of the U of the handle, - Figure 2 shows, before assembly, the piece of fabric used to form the bag of Figure 1; FIG. 3 represents a second embodiment of the bag according to the invention, laid flat along the core of the U of the handle; FIG. 4 represents the bag of FIG. 3, laid flat transversely to the core of the ϋ of the handle; Figure 5 is a schematic plan view of a third embodiment of the bag according to the invention, laid flat along the core of the U of the handle; Figure 6 is a schematic, planar representation of the embodiment of Figure 5, but laid flat transversely to one of the core of the U of the handle; and FIG. 7 shows the bag of FIG. 1, in the "inverted" state, with the top of the bag flat along the core of the U and the bottom of the bag deployed so that the bottom seam is visible. In the embodiment of FIG. 1, the bag 1 consists of a handle 2 and a pocket 3. The handle 2 forms an inverted U, the core of which is designated by 4 and the two wings by 5. The end of each wing 5 opposite the core 4 is joined to the upper limit of the pocket 3 along a non-material junction line 6 (only one of which is visible in FIG. 1). The wings 5 have the shape of two isosceles trapezoids joined by their small bases, the small bases corresponding to the core 4 of the U and the large bases to each of the junction lines 6. The loop 2 thus determines two accesses A1 and A2 to the pocket 3. The pocket 3 ends, opposite the handle, by a volume of complex geometry which, when flattened as in FIG. 1, defines two triangular adjoining parts, only one of which is visible in Figure 1 and which is based on the immaterial line 8 and for the opposite apex one of the ends of the bottom line 10. Inside the bag 1, a pocket 9 is sewn along one of the sides of the bag. This pouch

9 allows you to place a cell phone, wallet, or other object. The pocket 9 also allows, by inversion, to insert the entire bag 1 folded back, which is facilitated by the extensible nature of its constituent material. The volume occupied by the unused bag 1 is then reduced to a minimum. The pocket 9 containing the bag 1 folded can then be placed in a garment pocket or in a handbag. The bag 1 can be worn on the shoulder (or on the arm) by passing the arm between the wings 5, by the access A1 or A2, and by placing the core 4 of the handle 2 on the shoulder ( or on the arm) or else the bag 1 can be carried in the hand by passing the hand between the wings 5 of the handle 2 and by grasping them at the level of the core 4. Provided that the handle 2 is sufficient long, the bag can also be worn over the shoulder by passing the head in the row of accesses A1 and A2. The bag 1 is filled, placed on the shoulder (or on the arm, or over the shoulder) or tightened by hand, passing the products through the ports A1 and A2. The structure of the bag will be better understood from its method of assembly. As seen in Figure 2, the bag 1 is made from a single piece of rectangular fabric whose longitudinal sides are designated by 11a and 11b and the transverse sides by 12a and 12b. For the manufacture of the bag 1, the part is folded back on itself at the level of the longitudinal center line 13, the two longitudinal sides 11a and 11b coming to overlap and the two transverse sides 12a and 12b being folded in half on themselves . The resulting folded part then has a longitudinal median axis XX ′. Cutouts 14a and 14b are created symmetrically with respect to this axis XX ', leaving only the portions 12al and 12a2 remaining on the side 12a which are assembled by forming the core 4 of the U-shaped handle. The two sides longitudinal 11a and 11b, superimposed, are also assembled from the cutouts 14a, 14b to the line 8. After this assembly, the cutouts 14a and 14b form the accesses A1 and A2 of the handle 2 of the bag 1. At this stage , the transverse side 12b which consists of four parts I2bl, 12b2, 12b3 and 12b4 of equal length, is such that the part 12b2 is superimposed on the part 12b3 and the part 12bl is superimposed on the part 12b4. But this is not how assembly is done. If we designate by 15a and 15b, the part of the sides 11a and 11b which extends from the side 12b to the line 8 and by 16 the part of the fold 13 which extends from the side 12b to this same line 8, the assembly is done: part 12bl with part 12b2, part 12b3 with part 12b4, and part 15a with part 15b, the bottom line 10 corresponding to the juxtaposition of assemblies 12bl, 12b2 and 12b3, 12b4 (see Figure 7). It follows that the bottom 10 of the bag 1 has a direction orthogonal to the direction of the core 4 of the U of the loop 2, which is clear from this figure 7. For assembly, any technique suitable may be used depending on the nature of the material used, such as pitting, heat sealing or heat sealing. It is obvious that the bag according to the invention could just as easily be made from a piece of fabric folded so that the two sides of the bag are not in one piece along the fold 13, as c 'is the case in Figure 2, but folded along a line which would merge with the core 4 of the U. One could also consider that the two sides of the bag are, before assembly, separate parts. It is not excluded either that the "handle of the bag" and the "pocket" part of the bag are, before assembly, separate parts. When starting from separate parts, the parts are not necessarily made of the same material. The geometry of the cutouts 14a and 14b will preferably be optimized so that the pieces can be cut head to tail and staggered in the stretch fabric, with a minimum of scraps. In Figures 3 and 4, the elements common to Figure 1 have been designated by the same references followed by the prime sign. The second embodiment shown in Figure 3 differs from the first embodiment in that it has two handles 2a 'and 2b' instead of one. Expressed differently, the loop 2 of Figure 1 was split along 15 in two halves 2a 'and 2b' each having a core 4a 'and 4b', the slot 15 being orthogonal to the cores 4a 'and 4b' and affecting the bag from said cores to substantially the junction line 6 '. The handles 2a 'and 2b' determine two access A1 'and A2' to the pocket 3 'and the slot 15 a third access A3. As best seen in Figure 4, the bottom 10 'of the bag is orthogonal to the core 4a' of the handle 2a '. This bag 1 ′ can be worn like bag 1 of the first embodiment, that is to say on the shoulder (or on the arm) or by hand, but it can also be worn as a backpack , that is to say by threading, via the slot 3.5, an arm between the wings 5 'of the loop 2a' and the other arm between the wings 5 'of the loop 2b'. The three access points Al ', A2' and A3 of this bag are as many possibilities for filling the bag 1 '. In FIGS. 5 and 6, the elements common to FIG. 1 have been designated by the same references followed by the second sign. These figures represent an intermediate embodiment between that of Figure 1 and that of Figure 3 in that it has a slot 15 'affecting only one of the wings of the U-shaped handle. 4 "remains continuous, with however an access along A3 'on only one of the faces of the bag (besides, of course, the accesses Al" and A2 ").

Claims

CLAIMS 1. Bag (1; l; 1 "), in stretch fabric in the machine direction and / or in the cross direction, consisting of:

On the one hand, a pocket (3; 3 '; 3 ") comprising a bottom (10; 10'; 10") which is substantially linear and, in contrast, a peripheral upper limit and,

• on the other hand, a handle (2; 2 '; 2 ") having a general U shape, each end of the wings (5; 5'5") of the U being joined to said upper limit of said pocket ( 3; 3 '; 3 ") along a junction line (6; 6';6"), characterized in that the assembly formed by the two junction lines (6; 6 '; 6 ") between the handle (2; 2 '; 2 ") and the upper limit of the pocket (3; 3';3") affects at least a major part of said upper limit, and in that the direction of the core (4; 4a ', 4b'; 4 ") of the U is orthogonal to that of said bottom (10; 10 ';10"). 2. Bag (1; l'; 1 ") according to claim 1, characterized in that the assembly formed by the two connecting lines (S; 6 '; 6 ") between the handle (2; 2';2") and the upper limit of said pocket (3; 3 '; 3 ") affects the entire length of said limit. 3. Bag (1; l; 1 ") according to claim 1 or 2, characterized in that the handle (2; 2 ';2") and the pocket (3; 3'; 3 ") are in one piece . 4. Bag (1; l '; 1 ") according to any one of claims 1 to 3, characterized in that the handle (2; 2';2") in U shape takes the form of two isosceles trapezoids joined by their small bases, the small bases corresponding to the core (4; 4a ', 4b'; 4 ") of the U and the large bases to each of the connecting lines (6; 6 '; 63). 5. Bag (1 '; 1 ") according to any one of claims 1 to 4, characterized in that at least one of the wings (5';5") of the U is split from substantially the middle of the core (4 '; 4 ") from the U to the vicinity of the junction line (6';6") between the corresponding wing (5 '; 5 ") and the upper limit of the pocket (3'; 3 "), which slot (15) has a direction orthogonal to that of said core (4 ';4"). 6. Bag (1; l; 1 ") according to any one of the preceding claims, characterized in that the elongation of said stretch fabric is different in the machine direction and in the cross direction and in that in the bag (1; l '; 1 "), the direction of greatest elongation is substantially parallel to the core (4; 4a', 4b ';4") of the U. 7. Bag (1; l'; 1 ") according to any one of the preceding claims, characterized in that said fabric has a surface mass of between 60 and 400 g / m ² . 8. Bag (1) according to any one of claims 1 to 7, characterized in that it comprises an inner pocket (9) in stretch fabric.