Bag with a base with a window

Abstract

The present invention relates to a bag (1) consisting of a single body formed by an outer surface (2) and at least one bottom (3) fixed to said outer surface (2), wherein said bottom (3) consists of a first flap (3a) and a second flap (3b), arranged so as not to overlap or to overlap only partially, in order to create, in any case, at least one empty area (4) between said first flap (3a) and said second flap (3b), wherein said bag (1) also comprises a transparent covering element (5) applied to said bottom (3) and arranged so as to cover at least said empty area (4), and wherein said bag (1) is also provided with a reinforcing element (6) applied to said transparent covering element (5), and that at least the part of said reinforcing element (6) intended to be placed at said empty area (4) of the bottom (3) is made of transparent material,and / or said reinforcing element (6) is provided with a window or opening (7) intended to be placed at the level of said empty zone (4) of the bottom (3). Figure for the abstract: Fig. 1,

Description

Title of the invention: Bag with a base equipped with a window technical field

[0001] The present utility model refers to a bag for transporting materials. In particular, the present utility model refers to a bag for transporting cement or other useful materials in various sectors of the food, chemical, and construction industries, with a base having a window allowing the contents of the bag to be seen.

[0002] Prior art.

[0003] Currently, for the transport of cement and other similar materials in the construction sector, as well as for the transport of other goods, for example in the food, chemical, and mineral sectors, bags generally made of paper and plastic are used.

[0004] These bags generally consist of a main outer surface and at least one bottom attached to the main outer surface, so that the bag forms a single unit. The consistency of the outer surface of the bag is generally such that it takes the shape defined by the weight of the material it contains.

[0005] Generally, in bags known in the art, equipped with a base, the latter is made by folding two flaps of the body of the bag, completely overlapping one on top of the other, as shown in [Fig. 1]. This complete overlap makes it possible to obtain a continuous surface, without openings; the gluing of one flap on the other ensures the watertightness and complete reinforcement of the closure of the base.

[0006] French patent no. FR 1.362.4573 describes bags having, on the bottom, a round or polygonal window closed by a sheet of transparent material, plastic or other.

[0007] However, in certain situations, the user of these bags needs to see the contents of the bag from the outside, in the area at the bottom.

[0008] Consequently, the applicant was faced with the technical problem of the efficient and economical realization of a bag that would improve the visibility of its contents at the bottom of the bag. Summary

[0009] In a first aspect, this utility model refers to a bag like the one indicated in claim 1.

[0010] Indeed, the applicant of this application has found, surprisingly, that the technical problem identified above can be solved efficiently and reliably by means of a bag consisting of a single body formed by an outer surface and at least one bottom fixed to said outer surface, in which: - said base consists of a first flap and a second flap, arranged so as not to overlap or to overlap only partially, in order to create, in all cases, at least one empty area between said first flap and said second flap, - said bag also includes a transparent cover element applied to said base before the closure of the two flaps and arranged so as to cover at least said empty area, - said bag is also provided with a reinforcing element (also called "base") applied to said transparent cover element.

[0011] In addition: - at least the part of said reinforcement element intended to be placed at the level of said empty part of the bottom is made of transparent material, and / or - said reinforcement element is provided with a window or opening intended to be placed at the level of said empty part of the bottom.

[0012] In this way, the user of the bag has the possibility of seeing from the outside the contents of the bag through the empty area left free between the two flaps which constitute the bottom.

[0013] Indeed, the cover element covering the empty area of ​​the bottom is transparent, so that the inside of the bag can continue to be seen at the level of the empty area, even after the application of the cover element to the bottom.

[0014] At the same time, by applying the cover element to the bottom, a good seal is obtained to prevent any undesirable leakage of the material contained in the bag through any possible bottom elements that are not perfectly sealed.

[0015] Furthermore, whether the reinforcing element is also transparent or whether it is provided with a window, a hole or a cut-out opening intended to be placed at the level of the empty part of the bottom, the inside of the bag will always be visible from the outside at the level of the empty area between the two flaps constituting the bottom, even after the application of the reinforcing element on the cover element.

[0016] Indeed, if the reinforcement element is transparent, it is applied to the transparent cover element, and therefore there will be no element that will prevent the user from seeing the inside of the bag through the empty area formed between the two flaps constituting the bottom.

[0017] Conversely, if the reinforcement element applied to the transparent cover element is not transparent but has a window, hole or cut-out opening located at the level of the empty area formed between the two flaps that constitute the bottom, this opening allows, since the cover element is transparent, to see inside the bag through the empty area formed between the two flaps that constitute the bottom.

[0018] According to a preferred embodiment, said reinforcement element, provided with a window or opening intended to be placed at said empty part of the bottom, is made of non-transparent paper.

[0019] In this way, thanks to the fact that the reinforcing element is made of opaque paper, the various components of the bag, necessary for its formation and closure, are covered. This makes the bag more aesthetically pleasing, while still allowing the contents to be seen from the outside through the window formed in the reinforcing element.

[0020] According to a preferred embodiment, said empty area between the two flaps has an essentially rectangular, octagonal, circular or oval shape.

[0021] According to a preferred embodiment, said empty area between the two flaps has an essentially rectangular shape with a minimum distance between the two flaps varying from 15 to 50 mm, preferably from 20 to 40 mm.

[0022] According to a preferred embodiment, said first and said second flap do not overlap so as to leave between them an empty area of ​​variable size.

[0023] According to a preferred embodiment, each of said first and second flaps is provided, at the level of its central part, with at least one cutout so that, when said first flap and said second flap partially overlap, said cutouts together create said empty area in the non-overlapping part of said first and second flaps.

[0024] In this way, even if the two flaps that make up the bottom partially overlap, there is still an empty area between the two flaps that make up the bottom, which acts as a window or opening to allow the user to see inside the bag.

[0025] According to a preferred embodiment, each of said cutouts has an essentially semi-circular shape so that, when said first flap and said second flap partially overlap, said empty area created in the non-overlapping part of said first flap and second flap has an essentially circular shape.

[0026] According to a preferred embodiment, said transparent cover element is made of transparent plastic material or transparent paper.

[0027] According to a preferred embodiment, said reinforcing element has essentially the same shape as said background.

[0028] According to a preferred embodiment, said base and said reinforcing element have an essentially rectangular shape.

[0029] According to a preferred embodiment, said bottom of the bag has a flat surface, at least partially rigid.

[0030] Other features and advantages of the present utility model will be better highlighted by examining the following detailed description of the embodiments Preferred, but not exclusive, examples are illustrated for illustrative purposes only and are not limited to the accompanying drawings. In particular, these drawings include: - [Fig.1] is a view of the bottom of a bag known in the technique, where two flaps forming the bottom of the bag are visible, superimposed one on top of the other so as not to leave any empty area at the bottom; - [Fig.2] schematically presents a bag according to a first embodiment of the present utility model; - Figure 3 shows in detail the bottom of the bag in Figure 2, where the empty area between two non-overlapping flaps that make up the bottom are visible; - [Fig.4] shows in detail the open bottom of the bag in [Fig.3], where the transparent cover element applied to the empty area of ​​the bottom is visible; - [Fig.5] shows in detail one method of making the bag from [Fig.4], in which the reinforcing element applied to the transparent cover element and a window formed in the reinforcing element are visible; - [Fig. 6] shows a second embodiment of the bag of [Fig. 4], where the transparent reinforcing element applied to the transparent cover element is visible; - [Fig.7] shows a third embodiment of the bottom of the bag of the present utility model, in which the semi-circular cutouts which together form the circular empty area between the first and second flaps constituting the bottom of the bag are visible; - Figure 8 shows in detail the open bottom of the bag in Figure 7, where the element transparent cover applied over the empty area of ​​the background is visible; - [Fig.9] shows in detail the bottom of the bag of [Fig.8], where a window formed in the reinforcement element and located at the level of the circular empty area between the first and second flaps constituting the bottom of the bag is visible; - [Fig. 10] shows a fourth embodiment of the bag in [Fig. 8], where The transparent reinforcing element applied to the transparent cover element is visible. Detailed description

[0031] The detailed description that follows refers to particular embodiments of bag 1 of this utility model, without limiting its contents.

[0032] Bag 1 of the present utility model is intended to contain cement or other similar materials useful in construction or in the food, mineral, and chemical sectors, such as sand, gravel, or other useful materials, by for example, in the animal food and seed sector or similar.

[0033] A first embodiment, shown with reference to Figures 2 to 5, shows a bag 1 consisting of a lateral outer surface 2 and a base 3, such that the bag 1 is a single unit. The base 3 has a flat, partially rigid surface to facilitate the bag 1's resting on flat surfaces when the bag is full or partially full. The bag 1 then assumes a vertical position when the base 3 is placed on the ground.

[0034] The base 3 consists of a first flap 3a and a second flap 3b, which are arranged to form and close the base 3 and not overlap. A void 4 is thus formed between the first flap 3a and the second flap 3b. The void 4 has an essentially rectangular shape, with a minimum distance between the two flaps varying between 15 and 50 mm, preferably between 20 and 40 mm, for example about 30 mm (see [Fig. 3]).

[0035] A cover element 5 is applied to the two flaps 3a and 3b before they are closed, so that the empty area 4 between the two flaps 3a and 3b is also covered (see [Fig. 4]). Simultaneously, by applying the cover element 5 to the base 3 formed by the two flaps 3a and 3b, a good seal is achieved to prevent any unwanted leakage of the material contained in the bag 1 through any parts of the flaps 3a and 3b that are not perfectly sealed. The cover element 5 is made of transparent plastic or transparent paper.

[0036] On the transparent cover element 5, after the bottom 3 is closed, a reinforcing element 6 (also called a "base") is applied, made of paper and having a window (or cutout, or through opening) 7 intended to be placed at the level of the empty part 4 between the first flap 3a and the second flap 3b of the bottom 3 (see [Fig.5]).

[0037] In this way, the user can see the contents of the bag through (from the outside to the inside of the bag) the window or opening 7 formed in the reinforcement element 6, the transparent cover element 5 and the empty area 4 between the first flap 3a and the second flap 3b.

[0038] In this first embodiment, thanks to the fact that the reinforcing element 6 is made of non-transparent paper, the various components of the bag necessary for its formation and closure are covered. This makes the bag more aesthetically pleasing, while still allowing the contents to be seen from the outside through the window 7 formed in the reinforcing element 6.

[0039] In a second embodiment of this utility model, with reference to [Fig.6], the same bag as in Figures 2 to 5, where the reinforcing element 6 is transparent, is shown.

[0040] In this second embodiment, the user can see the contents inside the bag through (from the outside to the inside of the bag) the transparent reinforcement element 6, the transparent cover element 5 and the empty area 4 between the first flap 3a and the second flap 3b.

[0041] In a third embodiment of the present utility model, with reference to Figures 7 to 9, a bag similar to the bag in Figures 2 to 6 is shown. However, unlike the embodiments illustrated above with reference to Figures 2 to 6 where the first flap 3a and the second flap 3b of the base 3 do not overlap, leaving the empty area 4 between them, in Figures 7 to 9, the first flap 3a and the second flap 3b of the base 3 overlap at least partially.

[0042] Furthermore, in the embodiment shown in Figures 7 to 9, each of the first flap 3a and the second flap 3b is provided, at its central part, with a cutout 8a, 8b (see [Fig. 7]). Thus, when the first flap 3a partially overlaps the second flap, the cutouts 8a, 8b together create the empty area 4 in the non-overlapping part of the first flap 3a and the second flap 3b. In particular, the cutouts 8a, 8b have an essentially semi-circular shape; thus, the empty area 4, which is created in the non-overlapping part when the first flap 3a partially overlaps the second flap 3b, has an essentially circular shape.

[0043] Still in the embodiment illustrated in Figures 7 to 9, to seal the product inside the bag, before closing the flaps 3a and 3b, a transparent cover element 5 is first applied to the latter (see [Fig.8]), then a paper reinforcement element 6 is applied to this, having a window (or cutout, or through opening) 9 intended to be placed at the level of the empty part 4 between the first flap 3a and the second flap 3b of the bottom 3 (see [Fig.9]).

[0044] In this third embodiment, the user can thus see the contents inside the bag through (from the outside to the inside of the bag) the window (or opening) 9 formed in the reinforcement element 6, the transparent cover element 5 and the circular empty area 4 formed by the semi-circular cutouts 8a,8b.

[0045] In parallel, even in this third embodiment (as already seen above with reference to the first embodiment), thanks to the fact that the reinforcing element 6 is made of non-transparent paper, the various components of the bag, necessary for its formation and closure, are covered. In this way, the aesthetic appearance of the bag is more pleasing, while still allowing its contents to be seen from the outside through the window 9 formed in the reinforcing element 6.

[0046] In another embodiment shown in [Fig. 10], the reinforcing element 6 is transparent.

[0047] In this way, the user can see the contents of the bag through (from the outside to the inside of the bag) the transparent reinforcement element 6, the transparent cover element 5 and the circular empty area 4 formed by the semi-circular cutouts 8a,8b.

[0048] Obviously, specialists in the field will be able to observe many modifications and variations of the preferred embodiments described above, while remaining within the framework of the present utility model.

[0049] Thus, the present utility model is not limited to the preferred embodiments described, illustrated for illustrative purposes only and without limitation, but is defined by the following claims.

Claims

Claims

1. Bag (1) consisting of a single body formed by an outer surface (2) and at least one bottom (3) fixed to said outer surface (2), wherein: - said bottom (3) consists of a first flap (3a) and a second flap (3b), arranged so as not to overlap or to overlap only partially, in order to create, in all cases, at least one empty area (4) between said first flap (3a) and said second flap (3b), - said bag (1) also comprises a transparent covering element (5) applied to said bottom (3) and arranged so as to cover at least said empty area (4), characterized in that said bag (1) is also provided with a reinforcing element (6) applied to said transparent covering element (5), and that at least the part of said reinforcing element (6) intended to be placed at said empty area (4) of the bottom (3) is made of transparent material,and / or said reinforcing element (6) is provided with a window or opening (7) intended to be placed at the level of said empty zone (4) of the bottom (3).,

2. Bag (1) according to claim 1, wherein said transparent cover element (5) is made of transparent plastic material or transparent paper.

3. Bag (1) according to claim 2, wherein said part of said reinforcing element (6) intended to be placed at said empty area (4) of the bottom (3) is made of transparent plastic material or with transparent paper.

4. Bag (1) according to claim 1, wherein each of said first flap (3a) and said second flap (3b) is provided, at its central portion, with at least one cutout (8a, 8b) so that, when said first flap (3a) and said second flap (3b) partially overlap, said at least one cutout (8a, 8b) with which each of said first flap (3a) and said second flap (3b) is provided creates together said empty area (4) in the part not superimposed on said first flap (3a) and second flap (3b).

5. Bag (1) according to claim 4, wherein said cutouts (8a, 8b) have a substantially semi-circular shape so that, when said first flap (3a) and said second flap (3b) partially overlap, said empty area (4) has a substantially circular shape.

6. Bag (1) according to claim 5, wherein said reinforcing element (6) is provided with a window, hole or opening (9) suitable for being placed at said empty area (4).

7. Bag (1) according to claim 1, wherein said reinforcing element (6) has essentially the same shape as said bottom (3).

8. Bag (1) according to claim 7, wherein said bottom (3) and said reinforcing element (6) have a substantially rectangular shape.

9. Bag (1) according to claim 1, wherein each of said outer surface (2) and said bottom (3) of said bag (1) consists of at least two overlapping sheets.

10. Bag (1) according to claim 1, wherein said bottom (3) of the bag has a flat surface, at least partially rigid.