DE7900454U1 - Container with foldable emptying chute - Google Patents

Description

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Applicant: Societe Anonyme des Iraprimerie et Papeterie de L'est, 8, rue Decomble, 52000 Chaumont - France

Container with foldable emptying chute

The invention relates to the field of containers and in particular to a bag or packaging for containing heavy goods, such as crushed material, e.g. in the form of powder or granules.

The invention relates specifically to soft or flexible containers which allow the contents to be emptied through the bottom and more specifically through an emptying channel at the bottom of the container.

Commonly used containers in this field are usually reusable and are made by joining fabric or canvas panels made of polypropylene or similar material. In a known design, one and the same fabric panel forms two opposite sides and the bottom of the bag, which is supplemented by two further fabric panels if it has four side seams. Furthermore, the bottom of the bag generally has a closable opening.

However, one of the disadvantages or difficulties in using the usual bags is emptying them.

certain products or goods. It is therefore necessary to provide a large-sized discharge chute. The methods used so far lead to a compromise for the proposed discharge chute between the dimensions or diameter mentioned and the deformations or stresses to which it is subjected by the bag. \

The present invention aims to provide a solution to the problems mentioned and relates to a container or bag subject to a minimum of deformation and having an emptying channel offset from the plane of symmetry of the bag and allowing easy emptying of the material contained in the container.

The invention relates in particular to a container made up of four panels assembled by sewing along their edges, two opposite panels being identical and the other two panels having different heights. The invention is characterized in that the container, in the emptying position, has an inclined bottom made by sewing the panels of the container together, except at the lowest edge, the two panels delimited by this edge each having an extension in which only the vertical edges are stitched together, the defined volume between the extensions forming the emptying channel.

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In these containers, the inclined bottom is formed by the extension of the largest field of the container.

The invention also relates to such a container in which the discharge trough is able to be folded against the larger panel, a part of the smaller panel being able to be folded against the larger one to form the bottom of the container by forming a fold in which the trough is enclosed.

In such a container, the lower edges of each of the two identical fields have a length equal to the distance between the non-identical fields multiplied by V?, the length of the lateral edges of the smaller of the non-identical fields being equal to the height of the container, increased by a length approximately equal to the distance between the smaller field and the opposite field and by a length sufficient to form the discharge channel, the length of the larger of the non-identical fields being equal to the usable height of the container, increased by a length equal to the length of the lower edge of the identical fields and a length sufficient to form the discharge channel, and the larger field is additionally connected by each of its lateral edges on the one hand to the lower edges of the identical fields over their entire length and on the other hand to the lower part of each of the lateral edges of the extended part forming the discharge channel.

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In a preferred embodiment according to the invention, the container additionally has two horizontal strips which are preferably connected by sewing to each of the non-identical panels, on the one hand to the outside of the small panel at a height above the emptying channel and on the other hand to the outside of the large panel at a height corresponding to the usable height of the container.

These strips can have perforations, e.g. eyelets for a ribbon or thread, which allows the strips to be detachably connected by placing the strip of the small field on the strip of the large field by folding the part of the large field between the two side bottom edges and inserting the drainage channel into the fold thus formed.

The strips are connected by a ribbon or thread using a chain stitch.

The invention is explained below using an embodiment of the drawing.

Figure 1 is a partial perspective view of a container according to the invention in emptying position,

Figure 2 is a partial perspective view of the container according to Figure 1, with the bottom folded up.

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A container 1 according to Figure 1 is made of four panels 2,3,4,5, which are connected by seams along their edges. The opposing panels 2 and 4 are identical and have substantially vertical edges 2a, 2b and 4a, 4b and inclined lower edges 2c and 4c. The edges 2c and 4c are preferably of a length equal to the distance h between the edges 2a, 2b or 4a, 4b multiplied by V3.

The opposite fields 3 and 5 are not identical.

The length or height of the panel 3 or of the larger panel may be equal to the useful height of the sack, ie the height of this panel from its upper edge (not shown) to the level of the points A, A ¹ and B, B ¹ , ie to the level of the sack bottom (Figure 2) increased by the length of the edge 2c or 4c, ie h times V? plus a sufficient length X to form an emptying trough 6. This length of the panel 3 is determined by taking into account that the inclined bottom 3' is only an extension of the panel 3, which is a special preferred embodiment.

It is also understood that this field 3 ¹ is separate from field 3 and is attached to it on the line A, A ^1. In this case, the height of field 3 is equal to the usable height of the bag.

The length or height of the smaller field 5 is equal to the above defined or specified usable height of the bag, increased by

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the distance h between fields 3 and 6 plus the length X to form the discharge channel.

The four panels 2, 3, 4, 5 are connected in pairs, preferably by a seam according to methods known per se, at the edges 2a, 2b, 4a, 4b, 2c and 4c. Moreover, the non-identical panels 3 and 5 are connected at 7 and 8 over the length X to form the discharge channel.

Dashed lines 9a and 10a indicate the shape of the groove opening during evacuation or emptying of the materials contained in the bag or container 1.

As soon as the bag is empty, the channel walls at the bottom of fields 3 and 5 come into contact with each other. The upper and lower openings are then in positions 9 and 10.

When the container is used for the transport or storage of materials, the bottom is formed flat by folding the gutter against the panel 3' between the edges 2c and 4c and then folding the panel 5 along BB ¹ such that the line 9 between the points C, C at a distance a from the line B, B ¹ coincides with the line A, A ¹ of the panel 3.

As can be seen from Figure 2, the channel 6 in this position is contained in the fold 14, i.e. between the two parts

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t of field 3" , which is located between the edges Ac and 2c on the

I center line is folded over. As already mentioned, the field

'i 3 ¹ is generally only the extension of field 3. One can see

'( that in this position the materials in the container or bag exert a force on the ground when the bag rests on the ground

U of the bag, which keeps the channel 6 in a closed position

;4 and prevents accidental emptying of the contents.

As soon as you lift the bag, it is necessary to keep the bottom closed and for this purpose it is possible to

■ - panels 3 and 5 of the container shall be provided with fastening means which panel 5 along line C, C to panel 3 along line

i ^; A,A ¹ stiff and strong. It is desirable that the connection $ of the two fields is detachable, ie the fastening can be easily

j| must be removed so that the stiffness of the fields at the point

&idiagr; and is lifted at the desired time in such a way that under _the influence of the weight of the material the part of the field 5 between the edges B, C and B ¹ , C. and the channel 6 again assume their vertical position and the emptying process can take place.

As a particularly suitable means for such a detachable connection of the fields 3 and 5 forming the bottom, one can provide strips or bibs 11 and 12 along the lines B, B ¹ and A, A', which have a single or multiple thickness of the fabric and have perforations of such a type that the eyelets allow the introduction of a suitable thread. In order to eliminate the stiffness of the strips

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To facilitate this, they can be connected using a chain stitch. It is then sufficient to pull on the band 13 so that the weight of the contents in the container 1 ensures that the bottom of the bag opens.

During the emptying process, the inclined bottom 3', which leads to the channel 6, forms a kind of funnel with the field 5, which greatly facilitates the emptying of the contents, whereby the risk of getting stuck is considerably reduced.

Furthermore, even with large dimensions, the channel 6 does not affect the strength or solidity of the bag when transporting loads, because it is then folded flat with the bottom, i.e. it has the appearance of a familiar container with a flat bottom.

The length X that must be given to the gutter is not a critical aspect of the invention and is dependent or a function

other dimensions of the container itself and the type of contents that one wishes to transport and empty. As a general rule, the length X is equal to 1/3 of the usable height of the container. As a general rule, this channel becomes larger if the contents of the bag have a fine grain size.

The containers according to the invention can have any shape or size and can be used for transporting, storing and handling loads of different types and weights, and they are

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Particularly suitable for fillings weighing 500 to 2000 kg.

The containers may be made of any material currently used in this field, such as fabrics or films made of synthetic material, in particular polypropylene.

Example

The following example is intended to illustrate a particular embodiment of the container according to the invention.

A bag is produced for the transport and handling of granules in quantities between 1000 and 1500 kg. This bag, made of fabric or film, has four sections each 90 cm wide, with the emptying chute being 90 cm wide and 30 cm high.

After folding the gutter and forming a flat bottom by folding the small field against the larger one, the strips were joined together using a band made of polypropylene cord with a chain stitch, which are 30 cm high.

Claims (7)

• · »t • · • · Applicant: Societe Anonyme des Imprimerie et Papeterie de L'est, 8. rue Decomble, 52000 Chaumont - France Claims 1. Container made up of four panels connected by seams along their edges, two opposite panels being identical and the other two having different heights, characterized in that the container (1) in the emptying position has an inclined bottom ( ³¹ ) connected by sewing to the panels (2,3,4,5) of the container, except at the lowest edge (9) thereof, two panels (3,5) delimited by the edge (9) each having an extension of which only the edges (7,8) are stitched together, the defined space between the displacements forming the emptying channel (6). 2. Container according to claim .1, characterized in that the inclined bottom (3 ¹ ) forms the extension of the field (3). 3. Container according to claim 1 or 2, characterized in that the emptying channel (6) is able to be folded against the panel (3) and in that a part of the panel (5) is able to be folded against the panel (3 or ³¹ ) to form the bottom of the container, so as to produce a fold (C14) in which the channel (6) is contained. tilt··· · t I 1 I IUI I I > lilt 4. Container according to claim 2 or 3, characterized in that the lower edges (4c, 2c) of each of the two identical fields (2,4) have a length equal to the distance between the non-identical fields (3,5) multiplied by V5·, the length of the lateral edges of the smaller (5) of the non-identical fields (.3,5) being equal to the height of the container, increased by the length approximately equal to the distance between the smaller field (5) and the opposite field (3) and by a sufficient length (X) to form the emptying channel (6), the length of the larger (3) of the non-identical fields being equal to the usable height of the container, increased by a length equal to the length of the lower edge (2c or 4c) of the identical fields (2,4) and a sufficient length to form the emptying channel (6), and that the larger field (3) is additionally connected by each of its lateral edges on the one hand to the lower edges (2c, 4c) of the identical fields along their entire length and, on the other hand, to the lower part of each of the lateral edges (7,8) along the length (X) of the small field (5) to form the discharge channel (6), 5. Container according to one of claims 1-4, characterized in that it additionally comprises two horizontal strips (11, 12) which are preferably connected by sewing to each of the two non-identical fields (3, 5), namely on the one hand to the outside of the small field (5) at the level CC, C) above the emptying sr inside (6) and on the other hand to the outside of the larger * · 11t * Field (3) at a height (&Aacgr;,A* ) corresponding to the usable height of the container. 6. Container according to claim 5, characterized in that the strips (11, 12) have perforations, eg lace holes for a band (13) which allows the detachable connection of the strips by placing the strip (11) of the small field (5) on the strip (12) of the large field (3) and by folding the part of the large field (3 ¹ ) between the two edges (2c, 4c) and by inserting the emptying channel (6) into the fold (14) thus formed. 7. Container according to claim 5 or 6, characterized in that the joining or connection of the strips (11, 12) is achieved by a thread (13) by means of a chain stitch.