JP2001000020U - Freestanding bag container for containing fluid, paste or powdered products - Google Patents

Abstract

(57) [Summary] (Modifications) [PROBLEMS] The present invention provides a bag container of a type which can be easily manufactured using mechanical means and which can be self-standing with its bottom portion down. SOLUTION: The two planes (7) connected and bent by a transverse bottom formed by a central part of a single flat cut-out piece (1) having two parallel long sides (5, 5 '). , 7 ') in a bag container with these two faces joined edge to edge at their long sides and at the short side (2, 2') opposite the bottom, said transverse bottom being the It has two triangular facets (14a, 14b) facing back from the central area (4), and these two triangular facets are bent inward, and the vertices (14c, 14) of each triangle.
d) is oriented upward and outward and each long side (5,5)
5 '), each long side of the bag, whose two surfaces (7, 7') are formed by the boundary connection, is integrally fixed in an area b positioned between the vertex and the bottom of the triangle. With two inner layers (31a, 31b)
Is slightly inwardly recessed and the two outer layers (5a, 5c) are fixed at the boundary area.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to the field of bag containers for containing unit quantities of fluid, paste or powdered products. More particularly, the present invention relates to a bag obtained from a unit cutout, preferably a cutout having an elongated shape and having two parallel long sides.

[0002]

[Prior art]

 The cutouts of such a bag container are folded to form two generally quadrilateral surfaces of the bag container. The two surfaces are joined at their three sides at the edges, and are joined along the fourth side by the bottom formed by the central portion of the cut-out in three-dimensional form.

[0003] EP 0162119 discloses a device for shaping the cut-out pieces, in particular a three-dimensional shape of the bottom, so that the two surfaces from the shaped bottom are folded in the direction facing each other to produce a unit quantity of product. Disclosed is an apparatus for forming a volume comprising a bag container intended to contain a liquid.

[0004] In the embodiment disclosed in the above mentioned European patent, the bottom is configured by automatic means. As a result, a gap is created between the two surfaces, the bottom is shaped along the arched transverse wall, the two lateral edges separate the bottom from the corresponding surface along the arc, and the two arches are formed. Are joined on both sides of the bag container. However, in the above embodiment, which can be formed by mechanical means, the bottom is hollow and curved, so that a self-standing bag container with the bottom down cannot be obtained.

[0005]

[Problems to be solved by the invention]

 A first object of the present invention is to make it possible to manufacture a bag container of a type such as a bottle which is free standing with its bottom down by using a mechanical means. It is another object of the present invention to provide a specific type of bag container which has mechanical strength and satisfactory homogeneity and which is particularly capable of withstanding pressure and mechanical stress. .

[0006] Another object of the present invention is to provide an aesthetically pleasing improved aesthetic feature, in addition to the convenience of use that comes from the free standing state of the bag container in a vertical position supported by the bottom on the support surface. SUMMARY OF THE INVENTION It is an object of the present invention to manufacture a bag container having a novel form which is easy to operate and has.

[0007]

[Means for Solving the Problems]

 Therefore, first, the present invention is a bag container of the type obtained from a single flat elongated cut piece having two parallel long sides, said cut piece being bent and formed by the central part of the cut piece. The two sides of the bag container joined by the crossed bottom portion, the two sides of the bag container being edge-to-edge joined by their two long sides and the short side opposite the bottom. The bottom portion is provided with two triangular facets opposing back to back from a central area thereof, wherein the two triangular facets are bent inwardly of the bag container, and the vertices of the triangles are directed upwardly and outwardly, and Each long side of the bag container, connected to the corresponding long side of the container and formed by the bounding of the two faces, is the first cutout in the area located between the apex of the triangle and the base of the bag container. Piece Comprising four thickened portions or layers which are made and bonded together, the two inner layers which are bonded together being slightly recessed inward, leaving a boundary area consisting of the two outer layers, thus The present invention relates to a bag container characterized by being in contact with each other and being integrally fixed beyond the terminal edges of the two inner layers to ensure tightness and homogeneity of the bag container.

[0008] According to a first embodiment, between the two opposing lateral triangular facets a bottom with a rectangular central area forming the flat bottom of the bag container, Two opposing sides that separate the rectangular central area from the surface and two opposing sides that constitute one base of two lateral triangular facets positioned between the two surfaces are provided. The vertices of the triangle facing are connected to the corresponding long sides.

[0009] The present invention also provides a cutout for forming and manufacturing a specific type of three-dimensional bag container adapted to accommodate a unit amount of product, wherein the cutout is made of cardboard, plastic processing. Made of a flexible and semi-rigid material, such as coated cardboard, composites or the like, and having a generally quadrilateral shape, from the central area to form the bottom By folding the cut-out piece, the two long sides are configured to touch each other, so that the two parallel long sides are joined by their edges and the transverse side opposite the bottom, and Surrounding the internal space to be constituted, the cutout piece has a folding line formed in advance by embossing, and two parallel lines, called bottom folding lines, of the folding line are formed in a central region to form a bottom. Is composed of In the central region, there is a fold line forming two triangles facing back to back, the apex of each triangle being connected to the corresponding edge of the cutout, the cutout being located on its two long sides. And is characterized in that it has a notch which is included between the two parallel bottom folding lines and constitutes the bottom of the bag container. In the notch area, the two edges are recessed inward and It relates to cutout pieces characterized by being parallel.

[0010] Further, the present invention is an apparatus for shaping a cut-out piece configured to manufacture a bag container, preferably an elongated shape having two parallel long sides. The cut-out piece is bent to form two surfaces separated by a bottom consisting of a central portion of the cut-out piece, and the apparatus shapes the cut-out piece into a plurality of three-dimensional forms and forms a bag. Cutout to form the bottom connecting the two sides of the container, of the type with a convex punch for the three-dimensional shaping of the central part of the piece, the punch having a concave shape with a complementary shape The punch and the die are movable in the direction of approaching or moving away from each other, while the cutout is confined and constrained to form a bottom portion. Is Is mounted so as to slide inside a common guide sleeve interrupted by a transverse slot for the introduction of the cut-out to be formed, in its standby state a punch on one side of said slot and a punch on the other side. A die is arranged on the side, the punch and the die facing each other at the central part of the cut-out piece, the central part first penetrating into the sleeve to form a bottom and thus the two sides Folding is performed from the bottom toward each other, and the bending is performed in a direction opposite to the above-described intrusion direction. At least two shapes are possible, depending on whether the surface is bent.

[0011] Other features and advantages of the present invention will become apparent from the following description, taken in conjunction with specific embodiments, which are presented by way of non-limiting example with reference to the accompanying drawings.

[0012]

[Embodiment of the invention]

 Referring first to FIG. 1, there is shown a generally rectangular and rectangular blank or cutout 1 having tongues or protrusions on two short sides 2 and 2 '. The tongue or protrusion is the part of the bag container that is cut to open the paper bag.

[0013] The cutouts are obtained, for example, by embossing in a concave or convex form, respectively, to form a weak area of material consisting of cardboard, bristol board (good quality paperboard) or a composite of composite material. It has many folding lines. Preferably, a composite based on waterproof cardboard is used on the surface corresponding to the inner wall of the bag container when formed, and in particular, polyethylene which ensures joining of the edges of the bag container by heat welding. A coated one is preferred.

Thus, four lines 40 a, 50 b, 3 b and 3 d are arranged on the cutout piece 1, and these four lines extend from the long sides 5, 5 ′ and the short sides 2, 2 ′ of the cutout piece 1. Each defines a central rectangle 4 positioned at the same distance. Alternatively and according to a variant, the rectangles 4 can be made into narrow strips by bringing the two sides 3a and 3c closer together, or by joining the two fold lines 3a and 3c to form a rectangle 4 Can be simply one line 3e. FIG. 19 shows an embodiment which directly comes from the latter concept.

Two bending lines 6a and 6b are formed parallel to the long sides 5 and 5 '. The two fold lines 6a and 6b are used in the manufacture of the bag container when the bag container is finally formed by folding the two halves 7 and 7 'positioned on each side of the bottom respectively. Boundary regions 5a and 5b are provided which serve for the bonding (especially thermal fixing) of the edges 5 and 5 '.

The bottom is constituted by an intermediate region defined by two parallel fold lines, namely bottom lines 40 and 50. The bottom lines 40 and 50 are formed by line segments 40a and 50d, respectively, and are collinear with their extensions 40b, 40c and 50b, 50c. Thus, two parallel lines 40 and 50 are formed, between which the foldable facets form a bottom as described below. The bottom facet is constituted on one side by fold lines 8a and 8b which converge towards the edge 5 'and join at the boundary fold line 6b and join to a single fold line 9. I have.

Symmetrically, on the opposite side of the central rectangle there are folding lines 10 a and 10 b which converge towards the edge 5, the two folding lines being combined and folding in a position symmetrical to the folding line 9. A bending line 11 is formed. The two fold lines 9 and 11 are positioned approximately halfway between the long sides 5 and 5 'of the cutout.

The fold lines 40 d and 50 d forming the two opposite sides of the rectangle 4 are connected by the fold lines 40 b, 40 c, 50 b and 50 c which respectively join the boundaries 6 a and 6 d and extend to the edges 5 and 5 ′ Has been extended. Finally, oblique fold lines 13a, 13b, 13c and 13d extend from each corner of the rectangle 4 and extend towards the corresponding corners of the cutout 1 respectively and are connected to the boundary fold lines 6a and 6b.

2, 3, 4, 5 a and 5 b show the cutout of FIG. 1 by folding the two faces 7 and 7 ′ respectively towards each other from the bottom formed by the central part of the cutout. This shows that a bag container that can take the form shown in the perspective view of FIG. 2 can be obtained from the piece 1.

In order to form the shape of the bottom and to bend the two faces towards each other to ensure that the desired configuration is achieved mechanically, the concave shape as shown schematically in FIGS. 3, 4 and 8 A device constituted by a convex punch 15 which cooperates with the resulting die is used within the scope of the present invention.

The punch and die are slidably mounted inside a guide assembly formed by a common sleeve 17 so that the punch and die can face each other inside the sleeve 17. It has become. The guiding device or sleeve 17 is traversed by a slot 18 and the slot 18 allows the introduction of a cutout 1 which is shaped by the respective movement of the punch and the die.

The bag container is thus mechanically configured before it is filled with contents, and the cutout 1 is supplied from a reservoir containing the spare cutout. The punch is shown in more detail and in perspective in FIG. The punch has three facets, namely a quadrilateral facet 20 corresponding to the shape and dimensions of the quadrilateral facet 4 of the cutout. Also, the quadrilateral central facet 4 may be a single edge (FIG. 19).

The two triangular lateral facets 21a and 21b correspond to the respective facets 14a and 14b of the cutout. Therefore, the two facets 21a and 21b have the shape of an isosceles triangle and are positioned at approximately 45 degrees with respect to the cross section of the facet 20 perpendicular to the movement of the punch indicated by the arrow Fl. It is located on the plane of symmetry.

The die 16 has a hollow concave portion, and the concave portion is substantially complementary to the convex portion formed by the head of the punch 15. Within this hollow recess of the die 16 is a central plane constituted by a cross section 22 of the head of a piston 23, which is slidably mounted in the die 16 and returned to a protruding position by a return spring 24. On each side of the quadrilateral center plane of the die 22, small faces 25a, 25b, each formed by an isosceles triangle and arranged approximately 45 degrees with respect to the plane of the main transverse facet 22, are positioned.

Thus, when the punch 15 reaches the position where it comes into contact with the receiving die 16, the two embossing portions having the irregularities and dimensions complementary to each other are aligned with each other, and the surface 20 of the punch is brought into contact with the surface 22 of the plunger piston 23. When pressed, the facets 21a, 21b act on the facets 25a, 25b of the die.

Thus, in this movement, it can be seen that the cutout 1 is shaped by being restrained by two complementary elements, one on the punch and the receiving die on the other. According to a development of the invention, which is shown in particular in FIGS. 1a and 1b, the edges 5, 5 'corresponding to the two strips of the cutout are provided with notches 30, 30' in the center of the strip. Has been established. This central part corresponds to the bottom structure and is defined by two parallel lines, the so-called bottom fold lines 3a, 3b and the extension lines towards the edges 40b, 40c on one side and the edges 50b, 50c on the other. Has been established. The notch 30 is formed between the two shoulders 30a, 30b of the edge 5 ', and its bottom 30c is parallel to the edge 5' and slightly recessed from the edge 5 '.

The edge 30c, which forms the bottom of the notch, is preferably positioned approximately at the center of the boundary areas 5a, 5c separating the edge 5 'from the folding boundary 6b. As a result, the distance 1 (FIG. 1b) separating the edge 30c forming the bottom of the notch from the fold boundary 13b is the width L from the fold boundary at the non-notch portion of the above-mentioned long piece to the edge 5. It is preferable to make it approximately half. The advantage of this notch is that it provides tightness and homogeneity to the structure of the completed bag container, as described below.

In FIG. 1b, like FIGS. 6a and 6b, the borders 5a, 5b of the rim 5 are stippled to show the area where the rim is glued to form the bag container. In fact, the bag container is made of a material which, at least on the facing side, can ensure the heat sealing not only of the tightness of the bag container but also of the edges when the bag container is formed, because of the heat sealing. It has already been mentioned that the material is provided with a coating of polyethylene. The above-mentioned heat sealing obtained by pressing the two edges of the two surfaces 7, 7 'together by means of the heating jaws ensures the joining of the assembly. The notches 30 located on each side of the long side of the cut-out ensure an efficient joining of the edges 5, 5 'described above.

In fact, with reference to FIGS. 6 a, 6 b and 7, as the rising of the triangle 14 b forms the inner bellows, the two edges 5 a and 5 c come into close contact with each other, and the folding process takes the bottom Boundary portions 31a and 31b belonging to the central part of are inserted between the edges 5a and 5c to be glued.

When there is no notch, the facing heat-sealable surface 31a is fixed to the band 5a, and the band-shaped surface 31b is fixed to the band 5c. If it is desired that the inner surfaces of the strip portions 31a and 31b that are in contact with each other are also heat-sealed, a polyethylene layer is formed not only on the cutout surface forming the inside of the bag container but also on the surface forming the outside. There is a need to. From this arises technical disadvantages which require a choice of more expensive composites and possibly problems with the decoration of sacks.

In the absence of this heat-sealable coating on the surface constituting the back of the cut-out, two edges 5, 5 ′ between the fold line 9 and the base of the bag container are necessarily created. It can be seen that the opening would result in a separation line that would be detrimental to the tightness and mechanical strength of the bag container.

Within the scope of the present invention, the notch 30 makes it possible to leave the protruding boundaries of the regions 5a and 5c after folding the two strips 31a and 31b towards each other. This protruding interface is heat-sealed to one another, which ensures a perfect finish, tightness and mechanical strength of the base of the bag.

FIG. 7 particularly shows the protruding parts of the lateral bands 5a and 5c which join beyond the terminal edges of the inner bands 31a, 31b. 6b shows that this same device is on both sides of the bag container and thus can be completely closed symmetrically on both sides, especially with respect to its longitudinal edge, with the two faces facing each other. ing. Thus, in addition to the tightness and mechanical strength of the bag container, a satisfactory aesthetic appearance can be ensured without the appearance of the opening presented by the two non-adhesive edges.

FIGS. 9 and 10 show the development of the bag container of the present invention, according to which the respective rectangular sides forming the bottom connecting the corresponding surfaces 7 and 7 ′ are defined in advance. The formed fold lines 3a and 3b are subjected to additional embossing during the forming process of the bag container, forming a fold of the cutout. To this end, referring to FIGS. 4 and 9, two parallel lines provided on the punch 15 are provided with a convex rib 33, which cooperates with a concave groove 34 formed on the die 16. It is supposed to.

Thus, the cutout 1 is embossed between the male rib 33 and the female groove 34 to form a reinforcement 35 and to ensure a sharp fold at the bottom and a rectangular bottom and corresponding surface An open tubular structure is formed which ensures the stability of the separating edge between the openings. The reinforcement 35 is constituted by a shoulder 35c, below which is formed two concave angles 35d and 35b, which are connected to the surface 7 in due course.

FIG. 11, FIG. 12, FIG. 13 and FIG. 14 show modified examples derived from the above-described embodiment. In this variant, the central rectangle 4 is replaced by an inward recess of the bag container obtained by a suitable configuration of the folding lines 40, 50 with centrally angled folding lines 40d, 50d. ing. These angle fold lines each extend on one side to fold lines 10a, 10b and on the other side to fold lines 8a, 8b, respectively, to form a rhombus as a whole.

In this configuration, two lateral triangles 14 a 14 b are seen. The bottom intermediate region positioned between the two triangles is itself formed by two trapezoidal facets 36a, 36b. The two trapezoids are opposed by their long base 37, which forms a concave edge forming the bottom of the recess toward the interior of the central region.

FIGS. 13 and 14 show that the punches and dies are shaped in a suitable manner, creating the morphological conditions from the cutouts of FIG. 15 to the three-dimensional shape of FIG. . In this way, a bag container is obtained which is aesthetically pleasing and whose concave bottom has a shape which produces a new aesthetic effect.

As long as the bag container is free standing with the two indicator lines 3b, 3d complemented by a triangular base connected to the two opposing edges 5, 5 ′, a bag container with improved stability is obtained. can get. As long as it is adapted to the surface provided with the unequal convex portion absorbed in the hollow region constituting the concave bottom portion, the stability of the bag container at the time of placement is improved.

A variation of the bag container of FIGS. 11 and 12, shown in FIGS. 16 and 17, is obtained from the cutout of FIG. This embodiment is substantially similar to the embodiment of FIGS. 11 and 12, with the angular receding (offset) of the bottom lines 40d, 50d being replaced by curved lines 403, 50e, respectively.

Finally, FIG. 19 shows a variant in which the central rectangle is replaced by a single line 3 e and the two pieces are joined, with two transverse triangles facing each other by a common transverse edge. In FIG. 20, the modified example includes the forms shown in FIG. 2 and subsequent drawings. In this configuration, it is offset (retracted) towards the bottom which constitutes the base of surfaces 7 and 7 '. In this manner, by folding the bottom portion into the base portion of the inner portion, the reinforcing ribs forming a continuous band along the periphery of the base portion of the bag container are formed. The bag container is free standing with this folded strip down, and the bottom is kept away from any contact with the support surface.

In all of the above cases, the bag container is formed under the same conditions by configuring the assembly as shown in FIG. That is, the edges 38a and 38b draw the two sides 7 and 7 'of the cut-out piece together by the slot 38 acting as a cam. In other words, the punch 15 is inserted downward inside the sleeve 17 to draw the two faces 7 and 7 'of the cut-out piece together.

According to one embodiment, so that the contained product is sufficiently resistant to storage, it has border bands 5a and 5c on the one hand and border bands 5b and 5d on the other hand 2 The adhesion quality between the two edges can be adjusted. Therefore, if the upper tongues 2a and 2b are unable to withstand the traction force acting on the two surfaces 7 and 7 'from the upper tongues 2a and 2b, the two surfaces are easily separated to form a bag container that is peeled open. The resulting solid product will overflow.

It can be seen that the present invention can be applied to many embodiments. The invention makes it possible, in particular, to produce bag containers intended to contain unit quantities of fluid, paste or powdered products. In particular, the invention may be used to accommodate samples that are distributed free of charge for advertising purposes, or to accommodate quantities corresponding to single or multiple consecutive uses. In the form of the bag container according to the invention, the two concave surfaces 7 and 7 'automatically face each other at their apexes, and the protruding lugs, ie the lips of the opening obtained after cutting the tongues 2a, 2b, are formed. Close. Preferably, the protruding tongue may be replaced by a dispenser with a known type of closure means (plug or spout).

Within the scope of the present invention, house everyday products such as cleaning products, detergents, laundry products, shampoos, creams and cosmetics, or technical products such as adhesives, lubricants and manufacturing additives. A real container that can do it is produced. In this way, it can be accommodated in a package which is particularly economical and advantageous in its use. The pressure acting on the transverse surfaces 7 and 7 'allows a precise quantity of product to be released through the dispensing orifice. The dispensing orifice closes as described above after the end of the pressure acting on the transverse surfaces 7 and 7 '. Small containers can be manufactured using a material such as cardboard that is plastic-processed only on the inner side. Thus, the use of such small containers can ensure biodegradability and avoid long-term environmental pollution.

As used herein, the expression “sack container” is used to designate an object manufactured in accordance with the present invention, and the term “small container” is used as a supplement. The term “bag container” does not limit the scope of the present invention, but refers to any container regardless of the product to be contained, the material that makes up the wall of the container, the shape of the wall, and the contour of the wall. It must be understood that they are also used. In particular, the upper part or shoulders and upper tongue take on a form reminiscent of, for example, the form of a stopper or bottle neck corresponding to a conventional container, in order to enhance and further enhance the product offering. You may.

Preferably, the contained product can be manufactured and sold, not just as a sample, but also as a product for a single use. In fact, the bag container can also hold a storage volume for continuous use. Particularly in the case of powdered food products, the product can contain additives, for example in the form of dehydrated plants (spices, aromatic plants, etc.) in the form of so-called "samples". Finally, it may take the form of two twin-sack containers with a common tongue for the opening. Thus, two products to be stored separately can be mixed in situ.

[0048]

[Effect of the invention]

 According to this invention, it is possible to easily manufacture a bag container of a type that is self-supporting with the bottom part down, using mechanical means.

[Brief description of the drawings]

FIG. 1a is a plan view of a first embodiment of a cutout used within the scope of the present invention.

FIG. 1b is a detailed view of the cutout of FIG. 1a, illustrating more specifically the lateral notch 2 located on each of the two long sides of the cutout.

FIG. 2 is a perspective view of a first embodiment of a bag container made within the scope of the present invention.

FIG. 3 is a cross-sectional view of a punch and die used to make the bag container of FIG.

FIG. 4 is a perspective view of the interaction of a complementary punch and die for forming a second bag container.

FIG. 5a shows FIG. 2 placed in a stable state on a plane;
The front view of the bag container of FIG.

FIG. 5b shows FIG. 2 placed in a stable state on a plane;
It is a side view of the bag container of FIG.

FIG. 6a is a detailed and enlarged illustration of the assembling of the lateral edges being approached to be joined in the bag container shaping process.

FIG. 6b is a perspective view of the assembly of the lateral edge being approached to be joined in the bag container shaping process.

FIG. 7 is a cross-sectional view of the form of a bag container at the apex of a lateral triangle forming the lateral facet of the bottom.

FIG. 8 is a cross-sectional view of a shaping machine with a complementary punch and die for forming a bag container according to FIGS. 2, 4, 5a and 5b.

FIG. 9 is an illustration of an engagement with a rib integral with a punch cooperating with a groove provided in a die to form an open tubular structure defining a reinforcement at the bottom of the bag container. It is explanatory drawing which shows a relationship in detail.

FIG. 10 shows the engagement of a punch integrated with a groove cooperating with a groove provided in a die to form an open tubular structure forming a reinforcement at the bottom of the bag container. It is explanatory drawing which shows a relationship.

FIG. 11 is a perspective view showing a modification of the bag container according to the present invention.

FIG. 12 is a diagram showing a modified example of the bag container according to the present invention, and is a front view of the bag container in a free standing state.

FIG. 13 is a cross-sectional view of a punch and die intended to shape the bag containers of FIGS. 11 and 12.

FIG. 14 is a cross-sectional view showing a complementary operation of a punch and a die during operation.

FIG. 15 is a plan view of a cut-out used to shape a bag container according to FIGS. 12 and 13;

FIG. 16 is a perspective view of a variation of the bag container according to the present invention.

FIG. 17 is a front view of the bag container of FIG. 18 in a vertically independent state.

FIG. 18 is a plan view of a cutout used to make the bag container of FIGS. 16 and 17.

FIG. 19 is a perspective view illustrating a modified example, which is different from a bag container having another structure in the embodiment of the present invention.

FIG. 20 is a view illustrating a modified example of a bag container having another structure according to another embodiment of the present invention.

[Description of Signs] 1 cutout piece 2 short side (transverse side) 3a, 3b bending line 4 central area 5.5 'long side 5a, 5c outer layer 7, 7' surface 14a, 14b lateral triangle 15 punch 16 die 30 Notch (Notch Area) 31a, 31b Inner Layer 35a, 35b Concave Corner 35e Shoulder 36b, 36d Trapezoidal Face 37 Long Bottom 40, 50 Bottom Bending Line

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[Procedure amendment]

[Submission date] January 25, 2001 (2001.1.2)
5)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims for utility model registration

[Correction method] Change

[Correction contents]

[Utility model registration claims]

 ──────────────────────────────────────────────────続 き Continued on front page (71) Applicant 500588433 Route de Parthenay, St. Jean de Thouars, 79104 Thouars, France (72) Inventor Molinier Jean-Pierre France 49530 Lille Bouzier-le-Grande Clos (no address)

Claims (28)

[Utility model registration claims] 1. A bag container of the type obtained from a single flat elongated cutout (1) having two parallel long sides (5, 5 '), said cutout being bent and cut out. 2 of bag containers joined by a transverse bottom formed by the central part of the pieces
Two sides of the bag container, wherein the two sides of the bag container are edge-to-edge joined by the two long sides and the short side (2) opposite the bottom. The bottom part has two triangular facets (14a, 14b) opposing back to back from its central region (4), the two triangular facets being folded towards the inside of the bag container,
The vertices (14c, 14d) of the triangle are oriented upward and outward and connect to the corresponding long sides (5, 5 ') of the bag container, and the bag formed by the bounding of the two faces (7, 7') Each long side of the container has a four-layer thickness (5a, 3a) made from the first cutout and secured together in the area located between the apex of the triangle and the base of the bag container.
1a, 31b, 5c), the two inner layers (31a, 31b) which are fixed together are provided slightly recessed inward, leaving a border area consisting of two outer layers (5a, 5c), The two inner layers (31a, 31a) thus touching each other
A bag container, which is integrally fixed beyond the terminal edge of b) to ensure tightness and homogeneity of the bag container. 2. A bottom with a rectangular central area (4) forming a flat bottom of the bag container between said two opposing lateral triangular facets (14a, 14b); , Two opposite sides (40a, 50a) separating the central region from two corresponding surfaces (7, 7 '), and two surfaces (7, 7').
7 ') and two triangular facets (14
a, 14b), two opposite sides (3
2. The bag container according to claim 1, wherein the vertexes (14b, 14d) of the triangle facing the base are connected to the corresponding long sides (5, 5 '). 3. The base comprises only two opposite lateral triangular facets with respect to a common base, the common base connecting the two sides (7, 7 ') of the bag container with a transverse edge (3, 7').
3. A bag container according to claim 1, wherein e) is formed. 4. The two lateral triangular facets opposite with respect to a common base have curved edges, and thus the two triangular facets together form a lens shape, and the two 2. A bag container according to claim 1, wherein the opposing point is connected to one of the two long sides of the bag container, and the central portion extends directly from one of the two opposing faces of the bag container to the other. . 5. The bag container according to claim 1, wherein the bottom of the bag container has a re-entrant (recessed) region inward of the bag container between the two triangular facets (14a, 14b). A bag container according to claim 1. 6. The re-entrant area is defined by two trapezoidal facets (36d, 36b) facing each other with respect to a common long base (37), the re-entrant area thus conforming to a prism shape having a triangular cross section. Claim 1
A bag container according to claim 1. 7. The re-entrant area forms a lens form at two cutting edges and has two lateral triangular facets (1).
4a, 14b) and two curved edges (34,
35. The bag container according to claim 5, further comprising (35). 8. The edge formed by the sides (40a, 50a) of the rectangular central area (4) adjacent to the face (7, 7 ') of the bag container is not an open dihedron but a cross section of an open cylinder. 3. A bag container according to claim 2, characterized in that it is shaped like a letter and thus forms a reinforcement which ensures the stability of said edge. 9. The bag container according to claim 8, wherein the rim has a cylindrical cross section in the form of an open circle segment. 10. The edge has two reentrant corners (35).
A bag container according to claim 2, characterized in that it comprises a first angularly projecting shoulder (35c), which extends to the face (7) of the bag container following a, 35b). 11. The transverse bottom of the bag container is recessed inward, so that the bottom of the bag container is defined by a fold line (40, 50) extending from one edge to the other edge. Is self-supporting, without contacting any surface with the support surface, the base of the surface of the bag container is bent to form a reinforcement, i.e., an inward return portion, and offset so as to retract in the interior space of the bag container. The bag container according to claim 1, wherein the bottom portion is isolated. 12. A cut-out piece for forming and manufacturing a three-dimensional bag container according to any one of claims 1 to 11, wherein the bag container is adapted to accommodate a unit amount of a product. Cutouts are made of cardboard, plastic processed cardboard,
Made of a flexible and semi-rigid material, such as a composite or the like, of the type having an overall quadrilateral shape, folding a cut-out from the central area to form the bottom The two long sides (5, 5 ') are thereby arranged so that they touch one another, so that the two parallel long sides are joined at their transverse edge (2) opposite the edge and the bottom, and Surrounding the inner space constituting the container, wherein the cut-out piece has a bending line formed in advance by embossing, and a bottom bending line (40, 50) of the bending lines.
The two parallel lines, called, define a central area to form a bottom, and have a fold line forming two back-to-back facing triangles (14a, 14b) within the central area, with each triangle The vertices (14a, 14d) are connected to the corresponding edges of the cutout, and the cutout is connected to the two parallel bottom fold lines (40, 50) on its two long sides (5, 5 '). Is characterized in that it has a notch (30) comprised between and which constitutes the bottom of the bag container, the two edges (30c) of the notch area (30) being concave inward and of the notch (30) A cut-out piece parallel to the general portion of the long side (5, 5 ') on each side. 13. The notch region (30) wherein the two edges (30c) are recessed inwardly by 1 mm to 5 mm with respect to the general portion of the long side on each side of the notch (30). 13. The cutout according to claim 12, wherein 14. The two bottom fold lines (40, 5).
0) is constituted by two parallel lines extending from one long side (5) of the cut-out piece to the other long side (5 ′) and perpendicular to the two bottom folding lines (40, 50). The two bases (3d, 3d) of two opposing triangles (14a, 14b)
3b) together with a central rectangle, which constitutes the horizontal support base of the bag container in a stable vertical state and which is positioned in the same plane and connects the bottom folding lines (40a, 40b, 50d, 11. The method according to claim 9, wherein the base lies on the basis completed by 50b).
3. The cutout piece according to 3. 15. The two bottom fold lines (40, 5).
0) extends from one long side of the cutout piece to the other long side,
13. The arrangement according to claim 12, characterized in that the two opposing triangles (14a, 14b) are formed by a single transverse fold line and have a common base (3e) arranged perpendicular to the bottom fold line. Cutout pieces. 16. The two bottom folding lines (40, 5).
0) extends from one long side to the other long side of the cut-out piece and is arranged parallel to each other at a portion positioned near the long side, and the two bottom folding lines are formed by a bag at the center thereof. It has symmetrical ridges oriented towards the plane (7, 7 ') of the container, these ridges being inwardly directed after the bag container has been shaped, ie a concave portion from the bottom of the bag container. 13. The cutout piece according to claim 12, wherein 17. The curvature is defined at each bottom fold line by a connection point between the bottom fold line (50, 40) and one of the bases (3b, 3d) of a lateral triangle (14a, 14b). The bottom of the bag container is thus formed by a central region recessed inward and two lateral triangles, the corners of the vertices of the two lateral triangles facing each other.
Rising toward each of the three long sides, the reentrant portions form two edges (3b, 3b, 3b, 3b) that form the base of the triangle (14a, 14b).
3d) separated from the two lateral triangles, the two edges being connected to the bottom fold line (40b, 40c, 50b,
17. The cut-out piece according to claim 16, wherein together with 50c) a horizontal support surface for a self-standing stable state of the bag container in the vertical position is provided. 18. The curve is in the form of angular projections (40d, 50d) spaced away from a central portion of the bottom, the two opposing corners of the projection being defined by a fold line (37). 17. Cut-out piece according to claim 16, characterized in that it is joined and thus forms two trapezoids (36d, 36b) facing each other with respect to its long base. 19. The cut-out according to claim 16, wherein the curvature is constituted by curved segments. 20. The bottom folding line is formed by two twin wires, and the cutout can be bent to form a reinforcing portion at two thickness portions corresponding to the supporting base of the bag container. 13. The cutout of claim 12, wherein the bottom is offset inward. 21. Apparatus for shaping a cut-out piece for producing a bag container, preferably a cut-out piece having two parallel sides, preferably in an elongated shape, wherein said cut-out piece (1) is , The two sides of the bag container being folded and separated by a bottom consisting of the central part of the cutout (7,
7 ') wherein the apparatus shapes the cutout into a plurality of three-dimensional forms and shapes the three-dimensional form of the central portion of the cutout to form a bottom connecting the two sides of the bag container. A convex punch (15) for working with a concave die (16) having a complementary shape, said punch and die being in the direction of approaching each other. Alternatively, in an apparatus movable in a direction away from it, in which the cut-out piece is confined and constrained to form its bottom, the punch (15) and the die (16) are provided with transverse slots for the introduction of the cut-out piece to be formed. The slot is slidably mounted within a common guide sleeve (17) interrupted by a punch, in its standby state a punch is arranged on one side of the slot and a die is arranged on the other side. And the die are adapted to face each other in the central part of the cut-out piece, first forming a bottom by penetrating said central part into the sleeve, and then folding the two surfaces from the bottom towards each other, the folding comprising In the opposite direction, the facing of the male punch and the female die causes the shaping of the bottom and thus at least two shapes depending on whether the faces are bent from the bottom towards the punch side or the die side towards each other. An apparatus characterized in that it is possible to perform. 22. The punch (15) is a flat rectangular central facet (20) perpendicular to the axis of movement of the piston.
And two symmetrical lateral triangular facets (21a, 21b) that are away from one side of the rectangular facet, respectively, and the lateral facet has the form of an isosceles triangle. And having a common side with the central rectangle, the lateral facets being oriented so as to recede rearward from the central rectangular facet, and the die (16) having a complement of the punch. The device according to claim 21, characterized in that: 23. The die having a complement of the punch, wherein the central rectangular facet of the punch automatically returns to the projecting position and corresponds to the stamping of the punch into the complementary cavity against the return means. A first cross-section of the punch and the die is provided by contact between the plunger piston head of the die and the rectangular facet of the punch. Confining the cut-out piece and continuing to press the piston against the return means in the receiving housing for the remaining stroke of the punch to shape the cut-out piece trapped between the punch and the die. 22. The device according to claim 21. 24. The punch according to claim 1, wherein the central rectangular facet (2) corresponding to two non-adjacent sides of the horizontal triangular facet.
(0), a cylindrical rib constituting a reinforcing portion is formed in a cutout piece by a convex rib (33) cooperating with a receiving groove (34) provided in the die (16). 22. The device of claim 21, wherein the device is capable of: 25. The punch (15) has a stepped region in the center region thereof separated by two lateral triangular facets (36c, 36d) and facing inward, and the stepped region has a common long base (37a). ) Are formed by two opposing half facets in trapezoidal form, the short base of each trapezoid being common to the base of the corresponding triangular facet (14a, 14b), and the die (16) having a common long base. 9. The device according to claim 8, wherein said two trapezoidal semi-small surfaces are formed by two opposite half-small faces and have a step toward the outside, and the short bases of said two trapezoids are common to the bases of the respective triangular facets. 22. The device according to 21. 26. The punch having a hollow region in the center thereof, wherein the curved line of the hollow region constitutes a lens-shaped hollow portion cut at an end extending into a triangular facet, and the die has a complementary shape. 3. The method according to claim 2, wherein
An apparatus according to claim 4. 27. The punch (15) has two triangular facets opposed with respect to a common base, and the vertex corners of the facets opposing with respect to the common base are depressed with respect to the surface of the common base. 22. The device according to claim 21, wherein 28. Two surfaces (7, 7) constituting a bag container.
7 ′) is fixed to the long side (5, 5 ′).
7 ′), two gripping tongues (2a,
2b) is provided with an adhesive designed to allow the two sides to be separated so that the two sides can be separated manually.
Opposite traction forces applied to the two tongues open the bag container containing the two separate surfaces, e.g., the product in the solid state, and thus the bag container is of the peelable type to release the contained product. The bag container according to any one of claims 1 to 11, wherein the bag container is capable of performing the following.