FR2826337A1 - Method for aligning French beans in same direction comprises vibrating trough which separates beans into upper layer and lower layer containing heavier beans, which fall through aperture in base of trough - Google Patents

Abstract

The method for aligning French beans (1) in the same direction (3) comprises a vibrating trough (2). The beans separate into an upper (f1) and lower (f2) layer, containing the heavier beans. These fall through an aperture (5) in the base of the trough. Independent claims are included for: (a) a machine for carrying out the method; (b) an installation comprising the machine and guides for forming the beans into groups; and (c) a similar installation which also contains a packing unit.

Description

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 The invention relates to a method and a device for orienting filiform food products, such as vegetables, in a given direction, a method and an installation for aligned storage of such products implementing the preceding method or device. as well as a process and an installation for aligned packaging of filiform food products, such as vegetables, implementing such a process or such a packaging installation, according to one of its embodiments.

 Although more particularly intended to be applied to green beans, the invention can also be used with any other type of threadlike vegetables, such as fries or others.

 Currently, there are known methods for storing filiform food products which make it possible to have products aligned with one another. These processes work, in particular, by acceleration and projection and are satisfactory in terms of storage quality.

 However, they require relatively bulky and high cost installations. In addition, they only allow the formation of small doses. These processes are therefore often reserved for high-end products.

 The object of the invention is to propose a method and a device for orienting filiform food products such as vegetables, in particular green beans, as well as a method and a storage installation and a method and an installation for aligned packaging. such products which overcome the aforementioned drawbacks by taking up space and a reduced cost price, while having a satisfactory rate.

 Another object of the invention is to propose a method and a device for orienting filiform food products such as vegetables, in particular green beans, as well as a method and an installation for aligned storage of such products which allow the formation large doses.

 Other objects and advantages of the invention will become apparent during

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 of the description which follows which is given for information only and which is not intended to limit it.

 The invention firstly relates to a method of orienting filiform food products such as vegetables, in particular green beans, in a given direction, called alignment, in which: - said filiform products are fed into a receptacle, - animates said filiform products in a reciprocating movement in said alignment direction, - said filiform products are separated, according to their height relative to the bottom of said receptacle, in two flows, and at least the filiform products are channeled flow located near said bottom, called lower flow, in said direction of alignment, at least in line with a passage slot for said filiform products, provided at the bottom of said receptacle to allow the fall of filiform products channeled.

 The invention also relates to a method of aligned storage of filiform food products such as vegetables, in particular green beans, in which: - said filiform products are oriented in a given direction, called alignment, according to the method indicated above , - the fall of the filiform products leaving said receptacle through said slot is guided in the direction of at least one accumulation surface, so as to form one or more doses of filiform products by stacking on each other from the or said accumulation surfaces.

 The invention also relates to a method of aligned packaging of filiform food products, such as vegetables, in particular green beans in which: - a said dose of filiform food products is formed according to the storage method mentioned above at the level of said surface accumulation, - said accumulation surface is retracted to transfer said dose into an intermediate receptacle including said accumulation surface

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 constitutes a cover, - repositioning said accumulation surface to close said intermediate receptacle and compressing said dose of filiform products against said accumulation surface, - transferring said dose into a packaging receptacle located in the axial extension of said dose by acting on said filiform products in their longitudinal direction.

 The invention also relates to a device for orienting filiform food products such as vegetables, in particular green beans, in a given direction, called alignment, comprising: - a receptacle, capable of accommodating said filiform products, - means for animating said filiform products back and forth in said alignment direction, - means for separating said filiform products, according to their height relative to the bottom of said receptacle, in two flows, and for channeling to minus the filiform products of the flow located near said bottom, called the lower flow, in said direction of alignment, at least vertically in line with a passage slot for said filiform products, provided at the bottom of said receptacle to allow the fall of channeled filiform products.

 The invention also relates to an installation for aligned storage of filiform food products, such as vegetables, in particular green beans, comprising: - a device for orienting said filiform products in a given direction, called alignment, as described above , - at least one accumulation surface of said filiform products, - means for guiding the fall of filiform products leaving said receptacle through said slot in the direction of said accumulation surface (s) so as to form one or more doses of products filiform, by stacking on each other from the said one or more

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 accumulation surfaces.

 The invention also relates to an installation for aligned packaging of filiform food products, such as vegetables, in particular green beans comprising: - an installation for storing filiform food products as described above, - an intermediate receptacle, closed at the top by a said accumulation surface capable of accommodating a said dose of filiform food products, - means for retracting said accumulation surface, allowing a transfer of the dose of filiform food products resting thereon in said intermediate receptacle, and repositioning of said accumulation surface to close said intermediate receptacle, - means for compressing said dose of filiform food products against said accumulation surface, - means for transferring said dose, compressed, capable of acting on said filiform products according to their longitudinal direction to allow their passage in a packaging receptacle intended to be located in the axial extension of said intermediate receptacle.

 The invention will be better understood on reading the following description accompanied by the accompanying drawings, in which: - Figure 1 illustrates in perspective an example of an orientation device according to the invention, one of the sides of which has been partially cut , - Figure 2 is a top view according to Figure 1, - Figure 3 is a sectional view along the line lil-lil shown in Figure 2, - Figure 4 illustrates a top view of alternative embodiment of the orientation device according to the invention, - Figure 5 illustrates in side view an example of embodiment of the storage installation according to the invention,

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 FIG. 6 is a sectional view on the line VI-VI shown in the preceding FIG. 5, FIG. 7 illustrates in a sectional view an exemplary embodiment of the packaging installation according to the invention, the cutting axis being the same as in Figures 3 and 6, - Figure 8 illustrates in a sectional view an alternative embodiment of the storage installation according to the invention, the cutting axis being orthogonal to that of Figures 3 and 6.

 The invention relates first of all to a method of orienting filiform food products in a given direction, called alignment.

 As illustrated in Figures 1 to 3, according to the method according to the invention, said filiform products 1 are supplied, in particular in bulk, into a receptacle 2. In order to facilitate the readability of the figures, filiform products are only shown Figure 3.

 Said filiform products are, if necessary, pre-dosed.

In the case of green beans, they could have been previously trimmed, graded and / or blanched.

 Then said filiform products are moved back and forth in said alignment direction, identified 3, while separating said filiform products, according to their height relative to the bottom 4 of said receptacle 2, in two flows f, f and by channeling at least the filiform products of the flow f2 located near said bottom, called the lower flow, in said alignment direction 3, this separation of the filiform products into two flows and this channeling of the lower flow occurring at least plumb with a passage slot 5 of said filiform products, provided at the bottom 4 of said receptacle 2 to allow the fall, according to the arrow marked 6, of the filiform products channeled.

 There are thus obtained at the outlet of the receptacle 2 filiform products having the desired orientation. In particular, by providing two streams of filamentary products superimposed and isolated from each other, at least vertically in line with said slot 5, a direct fall of possible non-filiform products is avoided.

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 oriented through said slot 5.

 More precisely, as illustrated in FIG. 3, the filiform products of the upper flow f, are driven by said reciprocating movement while remaining substantially in bulk and, taking into account the separation of the upper and lower flows, cannot be move closer to the bottom 4 than at a distance from the said slot 5. By moving closer to the bottom 4 of the receptacle 2, they then orient themselves substantially parallel to the latter to form several beds of superimposed filiform products before being channeled in the direction desired.

 Said lower flow f2 thus consists, for example of filiform products sliding on said bottom 4 and of filiform products resting thereon, up to a certain height. Furthermore, "the isolation of the upper flow and the lower flow makes it possible to optimize the channeling of said lower flow.

 In this way, there is a process having a satisfactory flow rate. In addition, the flow of filiform products taking place in a substantially vertical direction 6, the size of the corresponding installations can be limited.

 Said filiform products have, for example, a length substantially identical to or just less than that of the slot in said alignment direction 3.

 Said filiform products of the lower flow f2 are channeled in particular, by subdividing them into several currents c1, c2, guided in said alignment direction 3.

 By way of example, the device in FIG. 1 makes it possible to create two currents c1 and c2 while the device in FIG. 4 makes it possible to create eight. It is thus possible to have filiform products oriented in said alignment direction falling in a flow extending over a certain dimension in the direction orthogonal to said alignment direction 3.

 In order to favor, in particular, the flow rate of filiform products passing through said slot 5, it is possible to channel said filiform products 1 over a width substantially identical to the dimension given to said slot 5

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 in the direction in which it extends perpendicular to said alignment direction 3.

 A better channeling of the products has also been observed, leaving the filiform products 1 present in said receptacle 2 passed on either side of said slot 5 in said alignment direction 3.

 The invention also relates to a method for aligned storage of threadlike food products.

 As illustrated in FIGS. 5 and 8, according to said storage method, said filiform products 1 are oriented in a given direction, called alignment, according to the method described above and the fall of filiform products is guided, in particular vertically leaving said receptacle 2 through said slot 5, which takes place in particular under the effect of their own weight, in the direction of at least one accumulation surface 7, for example located under said slot 5, so as to form one or more several doses 8 of filiform products 1 by stacking them on each other from the said accumulation surface (s) 7.

 By guiding said filiform products during their fall, it is thus possible to preserve their orientation and obtain one or more doses of aligned filiform products. As developed below, the guidance of filiform products can be obtained, for example, using partitions arranged parallel to said alignment direction or by a flow effect, especially in the event of a flow of filiform products extending over a relatively large length in the direction perpendicular to the alignment direction 3, as is the case with the filiform products leaving the receptacle of FIG. 4. Indeed, in such a case, the filiform products seem to guide each other others.

 An advantage of the formation of such doses 8 is that it facilitates the aligned packaging of the filiform products, these more easily retaining their orientation when grouped into doses than in isolation.

 Said receptacle 2 and said accumulation surface (s) 7 are, for example, substantially horizontal. Of course, the or

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 said accumulation surfaces 7 are located at a given maximum distance from said slot 5, in order to avoid a rebound of said filiform products.

They will, for example at most 70 mm from said slot 5.

 As illustrated in FIGS. 5 to 7, there is formed, in particular, a said dose of filiform products 8 at the level of said accumulation surface 7, possibly provided flat. In FIG. 6, said solid surface 7 and said dose 8 are observed in solid lines.

 In order to be able to obtain larger quantities of filiform products aligned in a row, it is also possible, after formation of said dose, called first, of filiform products at said accumulation surface, said first, to move the latter to allow formation of a second said dose of filiform products at a second said accumulation surface adjacent to said first surface. In Figure 6, said second dose and said second accumulation surface are shown in dotted lines.

 More precisely, after formation of said first dose, said second accumulation surface is moved under said slot 5 and the receptacle 2 is again supplied with filiform products which are aligned according to the orientation method mentioned above. The filiform products of each dose are located, in particular, in the axial extension of each other.

Said first and second doses have, for example, the same volumes.

 According to the preceding embodiments, the said accumulation surface (s) 7 are kept immobile during the stacking of the filiform products thereon.

 As illustrated in FIG. 7, according to another embodiment, the accumulation surface 7 used for stacking the filiform products is made mobile according to said back-and-forth movement animating said filiform products in said receptacle 2, during the formation of said dose of filiform products on said surface.

 In other words, if the movement of filiform products is

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 obtained by movement of said receptacle 2, the accumulation surface 7 will move with the latter, in a synchronized manner, in order to remain stationary relative to said receptacle 2.

The invention also relates to a method for aligned packaging of filiform food products.
If we refer again to FIG. 7, according to said alignment method, we form a said dose 8 of said filiform products according to the alignment method mentioned above, then we retract the accumulation surface 7 on which it rests , according to the arrow marked 10, for transferring said dose 7, according to the arrow marked 11, in an intermediate receptacle 9, of which said accumulation surface 7 constitutes a cover.

 For this, if said accumulation surface 7 is provided movable with the receptacle 2, as in the example illustrated, said dose 8 will be stopped once formed, shown in dotted lines, above the location provided for the intermediate receptacle 9. However, the packaging method according to the invention may also be implemented with an accumulation surface 7 kept immobile during the formation of the dose 8, said intermediate receptacle 9 then being directly provided under it, directly above said slot 5.

 According to said packaging method, said dose 8 of filiform products falls into said intermediate receptacle 9 while allowing the filiform products to maintain their orientation. Indeed, the retraction of said accumulation surface 7, by its abrupt and rapid character, does not disturb the storage.

Then repositioning said accumulation surface 7 to close said intermediate receptacle 9, always according to the arrow identified
10, and compressing said dose of filiform products against said accumulation surface 7, according to the arrow marked 12.

 Said accumulation surface 7 thus serves as a backpressure surface. Depending on the profile of its underside and / or the profile of a surface 13 provided opposite for pressurization, it is also possible

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 give a given shape to said dose 8 of filiform products located in the intermediate receptacle 9.

 Finally, said dose 8, compressed, is transferred into a packaging receptacle 14, according to the arrow marked 15, located in the axial extension of said dose 8 by acting on said filiform products in their longitudinal direction.

 Said packaging receptacle 14 consists, for example, of cylindrical boxes whose longitudinal axis will have been placed parallel to the direction of said filiform products, said boxes being open opposite said dose 8. It may also be act of parallelepipedic packaging such as, in particular bricks.

 If we are again interested in the storage method mentioned above, it can be implemented not only discontinuously as is the case in the embodiments given above, but also continuously, as described below.

 More specifically, as illustrated in FIG. 8, the said accumulation surface (s) 7 may be constituted by the bottom of a plurality of pockets 16, in particular adjacent, having at least one filling opening from above. We then scroll said plurality of pockets along a given path, marked 17, passing through a zone, called loading, where they are at least partially filled with filiform products falling through said slot and passing through their said filling opening.

 In order to ensure the fall of said filiform products in one of said pockets 16 and the preservation of their orientation, said pockets 1 will also be vibrated, at least during their passage at the level of said loading zone, that is to say ie, for example, when they pass under said slot 5. These are, for example, vertical vibrations.

 Said pockets 16 are, for example, identical to each other and pass, in particular, substantially horizontally, at least when they pass under said receptacle 2.

 To promote the oriented maintenance of said filiform products,

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 may also possibly give the bottom of said pockets 16 a substantially semi-cylindrical section, the longitudinal axis of said pockets being oriented in said alignment direction 3.

 In order to obtain said doses 8 of filiform products which are substantially constant from one pocket to the other, said pockets 16 will be gradually filled, said slot 5 will have a dimension, in the direction 17 in which it extends perpendicular to said direction d 'Alignment 3, much greater than the dimension, that is to say the width, of said pockets 16 in the same direction and said plurality of pockets will be scrolled under said slot in a direction substantially orthogonal to said alignment direction. The filling of the pockets will thus be progressive.

 The doses 8 obtained can then be packaged downstream by transferring them, in a manner known to those skilled in the art, from said bags 16 to packaging receptacles, as described, in particular, in French patent FR-2,750. 671 which describes a casing of pre-constituted doses of filiform products arranged aligned in pockets.

This document concerns a mode of operation using a carousel.

A casing using the same linearly oriented means could of course also be provided.

 That said, the invention also relates to a device for orienting filiform food products in a given direction, known as alignment 3. It is in particular intended for the implementation of the orientation method described above.

 If we refer again to Figures 1 to 4, we see that it comprises: - a receptacle 2, capable of accommodating said filiform products, - means, not shown, for animating said filiform products with a movement back and forth in said alignment direction 3, - means 18 for separating said filiform products, as a function of their height relative to the bottom of said receptacle 2, in two flows, f ,, f2, and for channeling to minus the filiform products of flux f2 found at

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 proximity of said bottom, called lower flow, in said alignment direction 3, said means 18 for separating the filiform products into two flows and for channeling the filiform products of the lower flow being provided at least directly above a passage slot 5 of said filiform products, located at the bottom of said receptacle to allow the fall of the channeled filiform products.

 Said means for animating the filiform products with a back-and-forth movement consist, for example, of a connecting rod / crank device making it possible to actuate said receptacle 2 according to an oscillating movement in said alignment direction 3.

 The bottom 4 of said receptacle 2 is, for example, flat. Said connecting rod / crank device is subject to said receptacle 2, in particular provided substantially rectangular parallelepiped, at its plane of symmetry orthogonal to said alignment direction 3.

 Said means 18 for separating said filiform products into two streams and channeling the bottom stream consist, for example, of a deflection plate 19, located directly above said slot 5, parallel to said bottom 4, and of partitions 20, extending between said bottom 4 and said deflection plate 19, parallel to said alignment direction 3.

 Said deflection plate 19 allows the creation of the two upper flow f, and lower flow f2, the first passing above said deflection plate 19 and the second below.

 Said partitions 20 make it possible, in combination with said deflection plate 19, to channel the filiform products in the desired direction.

 Said deflection plate 19 is, for example, centered on said slot 5, the latter slightly projecting from said deflection plate 19 in said alignment direction 3.

 Said partitions 20 are, for example, perpendicular to the bottom 4 of said receptacle 2 and define between them channels 21 in which the streams c1, c2 of filiform products circulate, said channels being

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 possibly open at each of their ends.

 Said slot 5 extends, for example, over the entire width of said channels 21 and even, optionally, over the entire length of receptacle 2 in the direction orthogonal to said alignment direction 3, that is to say, over the entire width of said receptacle 2.

 For filiform products such as, for example, green beans, the bottom 4 of said receptacle 2 and said deflection plate 19 are spaced, for example, from 20 to 50 mm. The same could be true for the partitions 20 of the channels 21.

 The receptacle 2 has, for example, two lateral faces 23, 24 parallel to said alignment direction 3 and two end faces 25, 26, orthogonal to said alignment direction 3 extending from the edges of its bottom 4 for define in the upper part an opening 27 through which said filiform products are fed into said receptacle 2.

 As already mentioned, said slot 5 extends, for example, from one of said side faces 23 to the other 24. It may be the same for said deflection plate 19. Said side faces 23,24 can thus define one of said partitions 20 of the channels 21 situated at the edges of the receptacle 2.

 The invention also relates to an installation for aligned storage of filiform food products.

 As illustrated in FIGS. 5 to 8, said installation comprises: a device for orienting said filiform products in a given direction, called alignment, as described above, at least one accumulation surface 7 for said filiform products, for example located under said slot 5, - means 28, in particular vertical, for guiding the fall of the filiform products leaving said receptacle 2 through said slot 5 in the direction of said accumulation surface (s) 7 so as to form one or more 8 doses of filiform products, by stacking these on top of each other

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 the others from said accumulation surface (s) 7.

 Said installation is intended, in particular, for the implementation of the aligned storage method described above.

 As more particularly illustrated in FIGS. 5 to 7, said installation comprises, for example, a drawer 29 having a bottom 30 and lateral edges 31-34 defining an opening 35, suitable for letting the filiform products falling from said receptacle 2. Said surface accumulation 7 then consists of the bottom 30 of said drawer 29, provided under said slot 5, and said guide means 28 comprise the lateral edges 31-34 of said drawer 29.

 To favor the guiding of the filiform products during their fall, said drawer may further comprise one or more partitions 40, parallel to said alignment direction 3, dividing its internal volume into several parts. Said partitions 40 of the drawer 29 are located, in particular, in the extension of the partitions 20 of the receptacle 2.

 Said drawer 29 has, in particular, dimensions substantially identical to or just greater than those of said slot 5.

 The opening 35 of said drawer 29 can be located in the immediate vicinity of said slot 5. It can also be further away, the storage installation according to the invention then optionally comprising a conduit for guiding said filiform products between said slot 5 and said opening 35 of drawer 29.

 Said drawer 29 could possibly be split, as illustrated in FIG. 6 in dotted lines. Said installation then comprises two said identical drawers 29 separated by a partition defining one of the edges 34, orthogonal to said alignment direction 3, of each of said drawers 29. It may further comprise means for passing one of said drawers 29 under said slot 5, after filling the other with a said dose of filiform products. Said partition 35 separating said drawers 29 is, optionally, removable. It is thus possible to constitute large quantities of filiform products arranged aligned.

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 As illustrated in Figure 7, if we are again interested in an embodiment of the installation according to the invention comprising a single drawer 29, the lateral edges 31-34 thereof may be subject to said receptacles 2. They will then be animated by the same movement as this.

 The invention also relates to an installation for aligned packaging of filiform food products.

 As illustrated in FIG. 7, said packaging installation comprises: - an installation for aligned storage of filiform food products as described above, - an intermediate receptacle 9, closed at the top by the accumulation surface 7, provided as a single item, of said storage installation, means (not shown) for retracting said accumulation surface 7, allowing a transfer of the dose of filiform food products resting thereon in said intermediate receptacle 9, and for repositioning said accumulation surface 7, enabling said intermediate receptacle to be closed, - means 36 for compressing said dose of filiform food products against said accumulation surface 7, - means 37 for transferring said compressed dose intended to act on said filiform products in their longitudinal direction, to allow their passage through a packaging receptacle 14, if killed in the axial extension of said intermediate receptacle.

 Said packaging installation is intended, in particular, for the implementation of the packaging process mentioned above.

 Said means for retracting and repositioning said accumulation surface consist, for example, of a jack acting on the bottom 30 of the drawer 29 of said storage installation. Said means 36 for compressing said dose of filiform food products located in the

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 intermediate receptacle 9 as well as said transfer means 37 of said dose in said packaging receptacle 14 may also consist, for example, of cylinders.

 The underside of the drawer 29 and the upper face 13 of the piston of the jack constituting said transfer means 37 may have a profile which, after approaching one another, will make it possible to give said dose 8 of filiform products, a section substantially identical, or even slightly lower than that of said packaging receptacle 14.

 The arrival of said packaging receptacles 14 is ensured, for example, using a worm screw 38.

 It will be noted that by giving the cylinder transfer means 37 a rotational movement around its longitudinal axis, in addition to its translational movement, it will be possible to transfer the filiform products into said packaging receptacle 14 by printing at said dose. 8 a twist. It is thus possible to enter into said packaging receptacle 14 filiform products longer than said receptacle.

 As illustrated in FIG. 8, if we are again interested in the aligned storage installation in accordance with the invention, it can be seen that this will allow continuous operation by comprising a plurality of pockets 16, in particular adjacent, having at least one filling opening from the top, the bottom of said pockets 16 constituting said accumulation surface 7, as well as means for scrolling said plurality of pockets along a given trajectory 17 passing through a zone, called loading zone, positioned so as to allow a fall of said filiform products, oriented, in said pockets through their said filling opening.

 The storage installation according to the invention will then comprise means 39 for vibrating said pockets 16, at least during their passage at said loading area, in order to ensure a passage of said filiform products falling from said receptacle 2 into at least one of said pockets 16 with conservation of its orientation. Said means for

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 vibrate are located, for example, under said slot 5.

 The receptacle 2 illustrated in FIG. 8 comprises eight said channels 21, such as the receptacle 2 illustrated in FIG. 4.

 Said pockets 16 have, for example, a width substantially identical to that of said channels 21. The same pocket 16 can thus pass successively, for example, under said slot 5, orthogonal to said alignment direction, at eight different channels 21 , which will allow progressive filling of said pocket 16.

 Said pockets 16 may be closed at their longitudinal end by fixed walls, not shown, which are flush with them. In addition, as already mentioned, said pockets 16 may have a U-shaped section.

 Naturally, other modes of implementation, within the reach of those skilled in the art, could have been envisaged without departing from the scope of the invention.

Claims (20)

1. Method for orienting filiform food products (1) such as vegetables, in particular green beans, in a given direction (3), called alignment, in which: - said filiform products are fed into a receptacle (2) , - said filiform products are moved back and forth in said alignment direction, - said filiform products are separated, according to their height, relative to the bottom (4) of said receptacle (2), in two flow f ,, fi and at least the filiform products of the fase flow found near said bottom are channeled, called lower flow, in said alignment direction (3), at least vertically in line with a passage slot (5 ) of said filiform products, provided at the bottom of said receptacle (2) to allow the fall of the channeled filiform products.  2. Method according to claim 1, in which said filiform products of the lower flow f2 are channeled by subdividing them into several streams c 1, C 2, guided in said direction of alignment (3).  3. Method according to claim 1 or 2, wherein said filiform products are channeled over a width substantially identical to the dimension given to said slot (5) in the direction in which it extends perpendicular to said alignment direction ( 3).  4. Method according to any one of claims 1 to 3, in which said filiform products present in said receptacle (2) are allowed to pass on either side of said slot (5) in said alignment direction (3) .  5. A method of aligned storage of filiform food products such as vegetables, especially green beans, in which said filiform products are oriented in a given direction (3), called alignment, according to the method of any one of claims 1 to 4, - the fall of the filiform products leaving said guide is guided <Desc / Clms Page number 19>  receptacle (2) by said slot (5) in the direction of at least one accumulation surface (7), so as to form one or more doses (8) of filiform products by stacking on each other from the or said accumulation surfaces (7).  6. Method according to claim 5, in which a said dose (8) of filiform products is formed at a said accumulation surface (7).  7. The method of claim 6, wherein, after formation of said dose, said first, of filiform products at said accumulation surface, said first, the latter is displaced to allow the formation of a second said dose filiform products at a second said accumulation surface, adjacent to said first surface.  8. The method of claim 6 wherein said accumulation surface is made mobile according to said back-and-forth movement animating said filiform products in said receptacle (2), during the formation of said dose of filiform products.  9. A method of aligned packaging of filiform food products such as vegetables, in particular green beans, in which: a single dose (8) of filiform products is formed according to the storage method of claims (6 or 8), accumulation surface (7) on which it rests to transfer said dose into an intermediate receptacle (9), of which said accumulation surface (7) constitutes a cover, - said accumulation surface (7) is repositioned to close said intermediate receptacle (9) and compressing said dose of filiform products against said accumulation surface, - transferring said dose, compressed, into a packaging receptacle (14) located in the axial extension of said dose by acting on said filiform products along their longitudinal direction.  10. The method of claim 5, wherein said accumulation surface (s) being constituted by the bottom of a plurality of pockets <Desc / Clms Page number 20>  (16) having at least one filling opening from above: - said plurality of bags are scrolled along a given trajectory (17) passing through a zone, called the loading zone, where they are at least partially filled with falling filiform products through said slot and passing through their said filling opening - said pockets (16) are made to vibrate, at least when they pass through said loading area.  11. The method of claim 10, wherein said slot (5) having a dimension, in the direction in which it extends perpendicular to said alignment direction, much greater than the dimension of said pockets (16), according to the same direction, said plurality of pockets are scrolled under said slot in a direction substantially orthogonal to said alignment direction to allow progressive filling of said pockets.  12. Device for orienting filiform food products such as vegetables, especially green beans, in a given direction (3) called alignment, comprising: - a receptacle (2), capable of accommodating said filiform products, - means for animating said filiform products back and forth in said alignment direction (3), - means for separating said filiform products as a function of their height relative to the bottom (4) of said receptacle, two streams fi, fz, and for channeling at least the filiform products of stream f2 located near said bottom, called lower stream, in said alignment direction (3), at least vertically in line with a passage slot (5) of said filiform products, provided at the bottom (4) of said receptacle to allow the fall of the channeled filiform products.  13. Device according to claim 12, in which said means for separating said filiform products into two streams and channeling the lower stream consist of a deflection plate (19), located directly above said slot (5), in parallel said bottom (4), and partitions (20), extending <Desc / Clms Page number 21>  between said bottom (4) and said deflection plate (19), parallel to said alignment direction (3).  14. Installation for aligned storage of filiform food products such as vegetables, in particular green beans, comprising: - a device for orienting said filiform products in a given direction (3), called alignment, according to one of claims 12 or 13, - at least one accumulation surface (7) of said filiform products, - means for guiding (28) the fall of filiform products leaving said receptacle through said slot in the direction of at least said surface (s) accumulation (7), so as to form one or more doses (8) of filiform products, by stacking these on top of each other from said accumulation surface (s) (7).  15. Installation according to claim 14, comprising at least one drawer (29) having a bottom (30) and lateral edges (31-34) defining an opening (35), suitable for letting the filiform products falling from said receptacle (2 ), and wherein said accumulation surface (s) (7) consist of the bottom (30) of said drawer (s) (29), provided under said slot (5), and said guide means (28) comprise the lateral edges (31-34) of said drawer (s) (29).  16. Installation according to claim 15, wherein the one or more drawers (29) further comprise one or more partitions (40), parallel to said alignment direction (3) dividing their internal volume into several parts.  17. Installation according to claim 15 or 16 comprising: - two said identical drawers (19) separated by a partition (34) defining one of the edges, orthogonal to said alignment direction, of each of said drawers (29), - means for passage of one of said drawers under said slot (5) after filling of the other. <Desc / Clms Page number 22>  18. Installation according to claim 15, wherein at least the side edges (31-34) of said drawer (29), provided single, are subject to said receptacle (2).  19. Installation for aligned packaging of filiform food products such as vegetables, in particular green beans, comprising: - a storage installation according to any one of claims (15, 16 or 18), - an intermediate receptacle (9), closed in the upper part by the accumulation surface (7) provided single, of said storage installation, - means for retracting said accumulation surface (7), allowing a transfer of the dose of filiform products resting on said accumulation surface (7) in said intermediate receptacle (9), and for repositioning said accumulation surface (7), making it possible to close said intermediate receptacle (9), - means (36) for compressing said dose of products filiform against said accumulation surface (7), - means (37) for transferring said compressed dose capable of acting on said filiform products in their longitudinal direction, to allow them to pass through a packaging receptacle (14), intended to be located in the axial extension of said intermediate receptacle.  20. Installation according to claim 14 comprising: - a plurality of pockets (16) having at least one top filling opening (3), the bottom of said pockets (16) constituting said accumulation surface (s) (7), - means for scrolling said plurality of pockets along a given trajectory passing through a so-called loading zone, positioned so as to allow a fall of said filiform products, oriented, in said pockets through their said filling opening, - means ( 39) to vibrate said pockets (16) at least at said loading area.