FR2855152A1 - Foldable bag, has fixation units disposed at opposite ends such that fixation units in base surface are closed along longitudinal fold by folding back ends toward each other until fixation units rejoin and cooperate between them - Google Patents

Abstract

The bag has a folding and retaining unit constituted by a support formed by a base (3). Complementary fixation units (6, 7) are disposed at opposite ends (3a, 3b) of the bag such that the fixation units in the base surface are closed along a longitudinal fold by folding back the ends toward each other until the complementary fixation units rejoin and cooperate between them. An independent claim is also included for a method of folding a bag.

Description

FOLDING BAG

  The present invention relates to a bag of the type comprising folding and retaining means in the folded position making it possible to transform it, by passing it from a functional state of use to a state of storage in the smallest possible volume and Conversely.

  Such a bag, commonly known as a folding bag, conventionally defines a container comprising at least two flexible facing walls 10 screws forming between them a bottom at their lower part and comprising at least one handle fixed to their open upper part.

  A large number of bags of this type are known, but has the drawback of having to be folded according to an imposed method, defined in advance by the manufacturer. This implies a methodology on the part of the user which can prove to be tedious.

  Another disadvantage lies in the fact that the folding and retaining means used in such known folding bags constitute additional elements added to the bag, resulting in a cost of materials and labor. higher.

  The present invention aims to remedy these drawbacks by proposing a bag of great simplicity, which can be folded in one direction or another, and above all not introducing any additional part in the production of the bag.

  To this end, the invention relates to a folding bag defining a container comprising at least two flexible facing walls, forming between them a bottom at their lower part and comprising at least one handle fixed to their open upper part, thus that folding and retaining means in the folded position of the bag making it possible to transform it by passing it from a functional state of use to a state of storage, in the smallest possible volume and vice versa, characterized in that the folding and retaining means consist of a flange formed by the very bottom of the bag and at the opposite ends of which are arranged complementary rapid fastening elements, so that after having laid the flexible walls on the 15 bottom, according to at least one longitudinal fold, the latter fits into the surface of said bottom and is then trapped there, by folding its ends towards each other until that their respective quick fastening elements meet and cooperate with each other in closing.

  The present invention also relates to the characteristics which will emerge during the description which follows, and which should be considered in isolation or according to all their possible technical combinations.

  This description given by way of example not

  limiting, will better understand how the invention can be realized, with reference to the accompanying drawings in which: Figure 1 shows a plan view of a folding bag according to the invention, depending on use.

  Figure 2 is a side view according to Figure 1.

  FIG. 3 represents a folding bag according to FIG. 1, according to a first folding phase.

  FIG. 4 is a side view according to FIG. 3.

  FIG. 5 represents the folding bag according to FIGS. 1 to 3, according to a second folding phase.

  FIG. 6 represents a side view according to FIG. 5.

  Figure 7 shows a folding bag according to one of Figures 1 to 6, according to a third folding phase.

  Figure 8 is a side view according to Figure 7.

  Figure 9 shows a folding bag according to Figures 1 to 8, depending on storage.

  FIG. 10 is a side view according to FIG. 9.

  The folding bag 1 generally designated in the figures defines a container 2 comprising at least two flexible walls 2a, 2b, facing each other, forming between them a bottom 3 at their lower part and comprising handles 4 and 5 fixed to their upper part open. This bag is of the type comprising folding and retaining means in the folded position of the bag 1, making it possible to transform it by passing it from a functional state of use (FIG. 1) to a storage state 30 (FIG. 9) in the smallest possible volume and vice versa.

  According to the invention, these folding and retaining means are constituted by a flange formed by the bottom 3 of the bag 1 and at opposite ends 3a, 3b of which are arranged complementary quick fastening elements 6, 7, so that 'after having laid the flexible walls 2a, 2b on the bottom 3, according to at least one longitudinal fold, 5 the latter is inscribed in the surface of said bottom 3 and then is trapped there, by folding one towards the other its ends 3a, 3b until their respective quick fastening elements 6, 7 meet and cooperate with each other in closing.

  As can be seen in the figures, the flange or bottom 3 of the bag 1 is of length substantially equal to the latter.

  Advantageously, the ends 3a, 3b of the flange or bottom 3 of the bag 1 form tabs on which the quick fixing elements 6, 7 are arranged.

  It should be noted that the quick fastening elements 6, 7 are advantageously, according to the present embodiment, constituted by snaps 20 of which a lower male part 6 is fixed on the tab 3a, and the female part 7 is arranged at the upper part of the bottom leg 3b 3.

  Of course, it could also be hook-and-loop means arranged in the same way.

  Furthermore, the flange or bottom 3 of the bag 1 is made of a flexible material relatively more rigid than the material of the walls 2a, 2b forming the container 2.

  According to the present exemplary embodiment, the width 1 of the flange or bottom 3 of the bag 1 is substantially equal to one third of the height h thereof.

  Of course, these proportions could be different without departing from the scope of the present invention.

  According to the present exemplary embodiment, the folding of the bag shown in the figures is carried out according to the following steps: - flattening of the empty bag 1 on its bottom 3 forming a flange, so that it is below and forms a first fold "a" 10 (Figures 3, 4) - first fold around a longitudinal edge 3c of the bottom 3 in one direction passing it over, to obtain a double fold "a, b" of width equal to that of the bottom 3 15 (FIGS. 5, 6) - second folding around the other longitudinal edge 3b of the bottom 3 in a direction making it pass under, to form an external base from which is made a triple fold "a, b, c", zigzag, of length equal to that of the bottom 3, the third fold "c" corresponding to the upper part of the bag 1 comprising the handles 4, 5, which are located above and 25 which protrude from the assembly FIGS. 7, 8 - folding of the ends 3a, 3b of the base 3 towards one another on the base of lacquer The triple folding "a, b, c" of the bag 1 has been carried out, until the quick fastening elements 6, 7 coincide, said bottom 3 or flange constituting an external element surrounding the assembly of the folded bag 1 (FIGS. 9, 10) - connection of the quick fastening elements 6, 7 According to another folding method not shown, the steps are as follows: - flattening of the empty bag 1 so that its bottom 5 3 forming flange is indifferently above or below - first folding in a winding direction around a longitudinal edge of the bottom 3 passing it inside the double fold thus formed, of width equal to that of the bottom - second fold in the same winding direction around the other longitudinal edge of the bottom 3, to obtain 15 a triple fold of width equal to that of the bottom, the third fold corresponding to the upper part of the bag 1 comprising the handles 4, 5 which are above and which protrude from the assembly - folding from one to the other, of the ends 3a, 3b of the bottom 3 forming a flange, around which the rolled triple folding has been carried out, until the quick fixing elements 6, 7 are made to coincide, said bottom 25 3 or flange constituting the central fold of the folded bag assembly 1 - connection of the quick fastening elements 6, 7

Claims (8)

  1. Folding bag defining a container (2) comprising at least two flexible walls (2a, 2b) facing each other, forming between them a bottom (3) at their lower part and comprising at least one handle (4, 5) fixed to their open upper part, as well as folding and retaining means in the folded position of the bag (1) making it possible to transform it by passing it from a functional state of use to a state of storage , in the smallest possible volume and vice versa, characterized in that the folding and retaining means consist of a flange formed by the very bottom (3) of the bag (1) and at the opposite ends (3a, 3b) of which there are arranged complementary quick fastening elements (6, 7), so that after having laid the flexible walls (2a, 2b) on the bottom (3), according to at least one longitudinal fold, the latter fits in the surface of said bottom (3) to then be trapped therein, by folding one towards the other its ends (3a, 3b) until their respective quick fastening elements (6, 7) meet and cooperate with each other in closing.   2. Bag according to claim 1, characterized in that the flange or bottom (3) of the bag (1) is of length substantially equal to the latter.   3. Bag according to one of claims 1 or 2,   characterized in that the ends (3a, 3b) of the flange or bottom (3) of the bag (1) form tabs on which the quick fastening elements (6, 7) are arranged.   4. Bag according to one of claims 1 to 3,   characterized in that the quick fastening elements (6, 7) are snaps.   5. Bag according to one of claims 1 to 4, 5 characterized in that the flange or bottom (3) of the bag (1) is made of a flexible material relatively more rigid than the material of the walls (2a, 2b) forming the container (2).   6. Bag according to one of claims 1 to 5, 10 characterized in that the width (1) of the flange or bottom (3) of the bag (1) is substantially equal to one third of the height (h) of it- this.   7. A method of folding a bag according to one of claims 1 to 6, characterized in that it comprises the following steps: - flattening of the empty bag (1) on its bottom (3) forming a flange, so that it is below and forms a first fold "a" (Figures 3, 4) - first folding around a longitudinal edge (3c) of the bottom (3) in a direction passing it above, to obtain a double fold "a, b" of width equal to that of the bottom (3) (Figures 5, 6) - second folding around the other longitudinal edge (3b) of the bottom (3) in a sense making it pass underneath, to form an external base from which a triple fold "a, b, 30 c" is made, in a zigzag, of length equal to that of the bottom (3), the third fold "c" corresponding to the upper part of the bag (1) comprising the handles (4, 5), which are above and which protrude from the assembly (FIGS. 7, 8) - folding of the ends towards each other ( 3a, 3b) from the bottom (3) on the base of which the triple folding "a, b, c" of the bag (1) has been carried out, until the quick fastening elements (6, 7) coincide, said bottom (3) or flange constituting a external element surrounding the entire bag (1) folded (Figures 9, 10) - connection of the quick fastening elements (6, 7) 8. Method for folding a bag according to one of claims 1 to 6, characterized in that it comprises the following steps: - flattening of the empty bag (1) so that its bottom (3) forming a flange is indifferently above or below first fold in a winding direction around a longitudinal edge of the bottom (3) passing it inside the double fold thus formed, of width equal to that of the bottom - second fold in the same winding direction around the other longitudinal edge of the bottom (3), to obtain a triple fold of width equal to that of the bottom, the third fold corresponding to the upper part of the bag (1) comprising the handles (4, 5) which are located above and which protrude from the folding assembly from one to the other, from the ends (3a, 3b) of the bottom (3) forming a flange, around which has been carried out the triple rolled folding, until 5 quick fastening elements (6, 7) coincide, said bottom (3 ) or flange constituting the central fold of the folded bag assembly (1) - connection of the quick fastening elements (6, 10 7)