Method for preparing pieces of fabric; pieces and bag derived from application of the method

Abstract

Bag having at least one of its sides produced from a piece of fabric secured to a piece of bubble wrap; securing being achieved by coating one face of the piece of fabric with adhesive then applying a piece of bubble wrap, either via its bumpy face or via its smooth face. Attachment is performed by sewing, laminating or bonding a second piece of fabric to the first piece of fabric so as to sandwich a piece of bubble wrap between these two pieces of fabric.

Claims

1. A method for the production of a bag comprising sides including one or more pieces of fabric, the method comprising: providing a first piece of fabric as an outer wall of the side of the bag; affixing a second piece of fabric to the first piece of fabric, the second piece of fabric affixed as an inner wall of the side of the bag, and the second piece of fabric having a lower grammage than the first piece of fabric; placing at least one piece of bubble wrap between said first and second pieces of fabric so as to sandwich the piece of bubble wrap between the first and second pieces of fabric, wherein a first side of the bubble wrap directly abuts a first side of the first piece of fabric and wherein a second side of the bubble wrap directly abuts a first side of the second piece of fabric, and wherein the bubble wrap is dimensionally smaller than either the first piece of fabric or the second piece of fabric; and providing a base disposed at the bottom of the bag, wherein the base includes a plate, and rollers fixed beneath the plate, said rollers cooperate with holes or apertures formed in the base, and the plate being held against the base by two flaps collaborating by an attachment member.

2. The method according to claim 1, wherein the affixing includes sewing, laminating or bonding the first piece of fabric to the second piece of fabric along one or more edges of each piece of fabric.

3. The method according to claim 1, further comprising bonding the first side of the bubble to the first side of the first piece of fabric and bonding the second side of the bubble wrap to the first side of the second piece of fabric.

4. A bag, comprising: sides, including: a first piece of fabric as an outer wall of each side of the bag; a second piece of fabric affixed to the first piece of fabric as an inner wall of each side of the bag, wherein the second piece of fabric has a lower grammage than the first piece of fabric; and at least one piece of bubble wrap between said first and second pieces of fabric so as to sandwich the piece of bubble wrap between the first and second pieces of fabric, wherein a first side of the bubble wrap directly abuts a first side of the first piece of fabric and wherein a second side of the bubble wrap directly abuts a first side of the second piece of fabric, and wherein the bubble wrap is dimensionally smaller than either the first piece of fabric or the second piece of fabric; and a base disposed at the bottom of the bag, wherein the base includes a plate, and rollers fixed beneath the plate, said rollers cooperate with holes or apertures formed in the base, and the plate being held against the base by two flaps collaborating by an attachment member.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Forms of embodiment of the invention are described below with reference to the drawings, in which:

(2) FIG. 1 is a bird's eye view, oriented downward, of the bag according to the invention.

(3) FIG. 2 is a partial view of the assembly of the pieces of fabric and bubble wrap;

(4) FIG. 3 is a partially truncated bird's eye view of the bag according to the invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

(5) In FIGS. 1 and 2, the base 1 of the bag, and also two vertical long sides 2 and two vertical short sides 3 can be seen. The four sides are realized by means of two pieces of synthetic fabric 20, 21 (FIG. 2), for example of polypropylene, which are each secured to four pieces of bubble wrap 22 (FIG. 2). The vertical edges of the pieces of fabric of the four sides are sewn 4 to one another by their common vertical edges and are also sewn on the base 1 in the same manner. The gusset folding lines 5 which are marked in the pieces of fabric of the short sides 3 are to be seen.

(6) Finally, it is noted that handles of synthetic braid 6 are sewn 7 close to the upper end of the two long sides 2 of the bag.

(7) Looking at FIG. 1, it is clear that owing to the gusset folding of the bag, the short sides remain slightly pinched towards the exterior, giving the mouth of the bag a slightly hexagonal shape.

(8) It should be specified that FIG. 1 is realized from a photograph of an actual bag which is standing straight upright on its own and properly open. The figure therefore makes no appeal at all to artistic effect in the drawing, this is truly what is obtained by constructing the bag according to the method.

(9) In FIG. 2, an embodiment of the invention has been illustrated with assembly of the elements forming a wall (2 or 3) of the bag. Thus, each wall includes two individual pieces of fabric 20, 21, between which a bubble wrap 22 is placed. Preferably, the dimension of the film 22 is less than that of the pieces 20, 21, to permit the assembly of the two individual fabric pieces 20, 21 one to the other as described above.

(10) In FIG. 3, the bag 11 is to be seen and also its two long sides 2. The gusset folding lines 5 can also be seen, appearing in the short sides 3 (a single one of which is represented in the figure). What changes with respect to FIG. 1 is essentially the base, which receives an arrangement permitting the bag to be rolled on the ground.

(11) This arrangement consists in the addition of two pocketbook flaps 7, of synthetic fabric, sewn along the common edges between the base 1 and the long sides 2. Each of the two flaps carries an attachment member (hook and loop mat) 8, so that they can be placed in cooperation one with the other. Also, in the base 1 of the bag, holes can be seen forming apertures, the number and position of which permit the wheels 10, fixed beneath a plate 12, to be passed through them.

(12) The plate 12 is preferably made of alveolar polypropylene (honeycomb) for the properties of rigidity, solidity and lightness of this material.

(13) When one wishes to fit the plate 12 to the base 1, the two flaps 7 are folded back and the wheels 10 are introduced in the holes 9 until the plate rests on the fabric of the base. Then the two flaps 7 are lowered and the plate is locked against the base by pressing the members 8 one against the other.

(14) Finally, it is noted that a handle 13 is fixed on at least one short side 3 such that the user can pull behind him the rolling bag according to the second variant of the bag according to the invention.

(15) Owing to the properties of the various pieces of fabric secured to pieces of bubble wrap, which result from the method according to the invention, a bag is obtained which remains truly upright and open, the more if it is mounted on rollers as in the second variant, because the plate also plays a stabilizing role. By achieving its aim so well, the bag according to the invention opens up new horizons for use, for example in shopping centres and superstores. Unlike the traditional shopping trolley, the customer can take and load the filled bag directly into the boot of his car.

(16) The embodiments of the invention are given by way of illustrative examples and must not be considered as being restrictive. Variations are possible within the claimed scope of protection, in particular by having recourse to equivalent means.

(17) By way of example of variants, it can be envisaged to propose more complex pieces of fabric including not only two pieces of fabric and one sandwiched bubble wrap, but more than one bubble wrap between the two pieces of fabric, or an assembly of three pieces of fabric and two bubble wraps, these elements being placed in an alternating manner. In such a case, the difference pieces of fabric can have the same grammage, or not, and the bubble wraps can have the same construction (density, size, shape of bubbles), or not. The choice can be made as a function of the application, the circumstances or the desired properties of the object (for example of the bag) which is to be manufactured.