EP0556130A1 - Apparatus for packaging articles, e.g. bread, in bags - Google Patents

Apparatus for packaging articles, e.g. bread, in bags Download PDF

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Publication number
EP0556130A1
EP0556130A1 EP93400363A EP93400363A EP0556130A1 EP 0556130 A1 EP0556130 A1 EP 0556130A1 EP 93400363 A EP93400363 A EP 93400363A EP 93400363 A EP93400363 A EP 93400363A EP 0556130 A1 EP0556130 A1 EP 0556130A1
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EP
European Patent Office
Prior art keywords
face
blowing
casing
bags
external
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP93400363A
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German (de)
French (fr)
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EP0556130B1 (en
Inventor
Louis Porraz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PORRAZ EMBALLAGE PAPETERIE (SARL)
Original Assignee
PORRAZ EMBALLAGE PAPETERIE (SARL)
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Publication of EP0556130A1 publication Critical patent/EP0556130A1/en
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Publication of EP0556130B1 publication Critical patent/EP0556130B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/26—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks
    • B65B43/34—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by internal pressure
    • B65B43/36—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks by internal pressure applied pneumatically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B25/00—Packaging other articles presenting special problems
    • B65B25/16—Packaging bread or like bakery products, e.g. unsliced loaves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B67/00—Apparatus or devices facilitating manual packaging operations; Sack holders
    • B65B67/02—Packaging of articles or materials in containers
    • B65B67/04—Devices facilitating the insertion of articles or materials into bags, e.g. guides or chutes

Definitions

  • the invention relates to a device for facilitating the packaging of objects - in particular long objects such as breads - in bags such as side bellows bags, initially folded flat and stacked in a stack.
  • the invention therefore aims to remedy these drawbacks by proposing a device making it possible to facilitate the packaging of objects - in particular long objects such as breads - in bags without, however, the introduction of the objects into the bags having to be done automatically.
  • the general aim of the present invention is not to fully automate the bagging operation, but only to facilitate manual bagging and to increase its productivity.
  • the invention aims to propose such a device which is compact, compact, light, ergonomic, which can be used in different possible positions, and which does not require any particular adjustment.
  • the invention aims to propose a device which makes it possible to open the bag placed above a stack of bags in order to facilitate the manual introduction of an object into this bag, thereby avoiding the user having to have to take the bag and open it.
  • the invention therefore aims only to automate the opening operation of the bags.
  • the invention aims to propose such a device by means of which the installation or loading of a stack of bags is instantaneous and requires only one operation.
  • the invention aims to propose such a device which does not require any particular adjustment of the maintenance of the bags or of the means for blowing the bag placed above the stack, whether at the start or during use.
  • the invention aims to propose such a device by which the orientation of the air flow is always automatically adapted to the height of the stack of bags, and the maintenance of the bags remains constant and of the same kind as and usage measurement.
  • the invention aims to propose such a device which is of low cost, and which incorporates all of the various functionalities useful for its practical use, in particular which can be adapted to several types of bags, which can operate in different possible positions - including a position at less substantially horizontal and an at least substantially vertical position of the stack of bags, which can be placed on a table and / or suspended from a vertical surface, so that this device can easily be installed and used in stores.
  • the invention relates to a device for facilitating the packaging of objects - in particular long objects such as breads - in bags initially folded flat comprising an opening and a strip projecting from the opening forming a single longitudinal thickness, the bags being stacked in a stack as an extension of an oriented blowing mouth to form an air flow in a direction at least parallel and to the surface of an external blowing face, the device further comprising a fan, an air deflector arranged at the outlet of the blowing mouth and mounted movably so that the deviation of the air flow can be modified - in particular according to the height of the stack - so that only the bag placed above receives the air flow, and means for holding the stack of bags, characterized in that the holding means comprise a pin associated with the deflector and extending towards the outer face of the ufflage in a perforation of the strip of each of the bags which is made of a material capable of tearing - especially paper -.
  • the bread packaging bags for example are made of paper and have an end strip projecting at their opening lengthwise.
  • the bags when they are stacked, they have a single sheet of paper at their end situated on the side of the opening.
  • the deflector comprises an upstream portion extending through the external blowing face which is provided with an opening formed immediately in downstream of the blowing mouth.
  • This upstream portion is articulated at an edge of the opening by a hinge comprising a return spring.
  • the deflector also includes a downstream portion extending the upstream portion towards the stack of bags placed on a support plate.
  • the plug is rigidly associated with the deflector and is turned towards the external blowing face.
  • the dowel is flared, its free end being of narrower width than its end of association with the deflector, for example generally triangular and pointed, and the external blowing face is provided with a light, for example oblong, opposite the ankle.
  • the perforations in the bags are circular and the width of the oblong opening is smaller than the diameter of the perforations.
  • the device comprises a closed casing containing the fan rigidly associated with the casing, and a battery support plate rigidly associated with the casing in extension of the blowing mouth in the direction of the air flow, so as to form a device in one piece, compact, light and handy allowing easy and ergonomic manual insertion of objects into the bags.
  • the device mainly consists of the closed casing containing the fan, the blowing mouth, the support plate and means for holding the battery.
  • the casing has a shape and dimensions such that it can rest directly or through one or more feet on a horizontal surface in at least two positions corresponding to at least two orientations of the plate.
  • support - in particular an orientation at least substantially horizontal and an orientation at least substantially vertical -.
  • the casing has a flat face and / or feet opposite the external blowing face enabling the device to be laid down with the support plate at least substantially horizontal.
  • the support plate extends the external blowing face beyond its free end edge which forms a junction edge with another flat face of the casing, this other face forming an angle with the support plate so that when this other face rests on a horizontal surface, the support plate is at least substantially vertical.
  • the support plate has its free end provided with a foot extending on the side of the casing.
  • the width of the casing perpendicular to the external blowing face is greater on the side of the support plate than at the opposite end, and the device comprises a foot extending from and at least substantially perpendicular to the face opposite to the external blowing face and on the side opposite to the support plate.
  • the casing is polyhedral - in particular in the form of a straight prism whose bases form the vertical lateral walls of the casing.
  • the blowing mouth is formed in a riser connecting two walls of the casing, one of which forms the external blowing face.
  • the fan is inserted into a turbulence chamber, the inlet of which is opposite a perforated wall opposite the external blowing face, and the outlet of which corresponds to the blowing mouth.
  • This turbulence chamber is flared and has an inlet section whose area is similar to that of the outlet section.
  • the invention also relates to such a device which comprises, in combination, all or some of the characteristics mentioned above or below.
  • the invention relates to a bag for packaging objects (in particular long objects such as breads), comprising an opening and a strip projecting from the opening forming, when the bag is folded flat, a single longitudinal thickness, characterized in that the strip has a perforation and in that at least the strip consists of a material capable of tearing - in particular paper -.
  • the perforation is circular and at least substantially centered on the strip.
  • the invention thus provides a device which proves to meet the above-mentioned aims, and in particular which is perfectly compact, light, which can take several possible positions, which is low cost, simple to make, and which requires no particular setting, only the bag located above the stack is actually inflated, the other bags being held, regardless of the height of the stack.
  • the device 1 is intended to facilitate the packaging of objects 2 (which are not an integral part of the invention) - in particular long objects such as breads as shown in the figures - in bags 3 initially folded flat, these bags 3 being stacked in a stack 5.
  • the bags are for example of the side bellows type 4, although this is not strictly necessary since the bags 3 can be inflated.
  • the device 1 is shown without bags.
  • the device 1 according to the invention comprises means 6, 8, 13 for blowing the bag 3 placed above the stack 5, that is to say to form a stream of air in the direction of the opening 30 of this bag 3 in order to inflate it.
  • the device 1 according to the invention also comprises means 9 for holding the stack 5 of bags, the function of which is to prevent the bags 3 from flying away under the effect of the air current generated by the means 6, 8, 13 generating this air flow.
  • the device 1 mainly consists, in addition to the holding means, of a closed casing 7 containing a fan 13 which is rigidly associated with this casing 7, and which blows air into an oriented blowing mouth 6 to form a stream of air in a direction at least substantially parallel to and to the surface of an outer blowing face 15 of the flat casing 7, and of a battery support plate 16 5, this support plate being rigidly associated with the casing 7 as an extension of the blowing mouth 6 in the direction of the air flow, so as to form a device in one piece, compact, light and manageable allowing easy and ergonomic manual insertion of the objects 2 in the bags 3.
  • the device according to the invention also comprises means 8 for deflecting the air flow between the blowing mouth 6 and the support plate 16.
  • Plate 16 of support is elongated and flat and has dimensions corresponding to those of the bags 3 to support them in a stack 5.
  • the casing 7 has a shape and dimensions such that it can rest directly or through one or more feet 17, 18 on a horizontal surface 28, 29 according to at least two positions corresponding to at least two orientations of the support plate 16.
  • the device 1 rests on a horizontal surface 28 by means of two feet 17, 18 and an edge 33 of the casing 7 and the support plate 16 has an orientation at least substantially horizontal, preferably slightly inclined relative to the horizontal so that the bottom 34 of the bags is at a level slightly lower than their opening 30.
  • the casing 7 rests on a horizontal surface 29 formed for example by a table 35 and the casing 7 has a flat face 19 in contact with this horizontal surface 29, the support plate 16 having an at least substantially vertical position, preferably slightly inclined relative to the vertical.
  • the casing 7 has feet 17, 18 opposite the external blowing face 15 allowing this device 1 to be laid down with the support plate 16 at least substantially horizontal.
  • the casing 7 may have a flat face whose orientation is such that the feet 17 or 18 are not made necessary.
  • the casing could have a flat face connecting the edge 33 to the free end 36 of the foot 18 which would then be an integral part of the casing 7.
  • the width of the casing 7 perpendicular to the external blowing face 15 is larger on the side of the support plate 16 than at the opposite end 37.
  • this makes it possible to provide that the wall 26 opposite the external blowing face 15 can be vertical when the support plate 16 is slightly inclined relative to the vertical in the position of Figure 2. This also ensures the stability of the device 1 in this position where the support plate 16 is at least substantially vertical.
  • the device 1 then comprises a foot 18 extending from and at least substantially perpendicular to the outer face 38 of the wall 26 opposite to the outer blowing face 15.
  • This foot 18 extends on the side opposite to the support plate 16 and at an appropriate height according to the inclination with respect to the horizontal which it is desired to obtain from the device 1 in the position of FIG. 1.
  • the foot 18 is rigidly associated with the casing 7, advantageously in a removable manner. It may also be noted that in the position of FIG. 2, this foot 18 can serve as a means of attachment to a vertical surface, its free end 36 being able to be rigidly associated by a screw or the like with such a vertical surface.
  • the support plate 16 extends the external blowing face 15 beyond its free end edge 39 which forms a junction edge with another flat face 19 of the casing 7, this other face 19 forming an angle with the plate 16 of support so that when this other face 19 rests on a horizontal surface such as 29, the support plate 16 is at least substantially vertical. If the support plate 16 is to be strictly vertical, the other face 19 should form a right angle with the external blowing face 15. According to the invention, it is nevertheless preferred that the angle formed between the external blowing face 15 and the other face 19 of the casing forms an angle of less than 90 ° - in particular slightly less than 90 ° and greater than 60 ° - so as to slightly tilt the support plate 16 and the stack 5 relative to the vertical as shown in the Figure 2.
  • the support plate 16 has its free end 40 provided with a foot 17 extending under this support plate 16 on the side of the housing 7, that is to say in the same direction as the associated foot 18 rigidly to the casing 7.
  • This foot 17 is rigidly associated with the free end 40 advantageously in a removable manner.
  • the casing 7 is polyhedral and, in the figures, in the form of a straight prism whose bases form vertical side walls of the casing 7.
  • the vertical side wall situated towards the front of the figure has not been shown to illustrate the elements contained inside the casing 7.
  • the feet 17, 18 can also be associated in a mobile and / or removable manner relative to the device 1 to allow their adjustment either in length or in inclination.
  • the means 9 for holding the stack 5 of bags comprise a pin 9 extending in a direction at least substantially perpendicular to the external blowing face 15 of the casing 7 in a perforation 32 formed in a strip 31 d end projecting from the opening 30 of each of the bags 3, and this strip 31 at least consists of a material capable of tearing.
  • a bag 3 for packaging objects - in particular long objects such as breads - comprises lateral bellows 4, an opening 30, a bottom 34, and a strip 31 projecting from the opening. 30 forming, when the bag 3 is folded flat, a single longitudinal thickness.
  • Such packaging bags with projecting opening strip 31 are known in themselves and in particular used for bagging breads.
  • the strip 31 comprises a perforation 32 which is for example and according to the invention circular and at least substantially centered with respect to the strip 31.
  • the strip 31 projecting at least consists of a material likely to tear - especially in paper -.
  • the entire bag 3 is made of the same material, for example paper.
  • the pin 9 entering the perforations 32 holds the bags in place against the air flow formed at the outlet of the blowing mouth 6.
  • the bag placed above the stack 5 inflates which facilitates the introduction of the object 2 inside the bag 3.
  • the band 31 is torn either under the weight of the object 2, or under the effect of a user action to allow the bag provided with its contents to be separated from the peg 9 as indicated in FIG. 2.
  • the presence of a peg 9 penetrating into perforations 32 makes it possible to create a current of air at the outlet of the blowing mouth 6 large enough to effectively inflate the bag 3 placed above the stack without however taking away the entire stack 5.
  • the device 1 comprises means for deflecting the air stream consisting of an air deflector 8 disposed at the outlet of the mouth 6 blowing whose function is to deflect the air flow away from the external blowing face 15 at an appropriate angle so that this air flow is effectively directed towards the bag 3 located above the stack 5 but only towards this bag 3.
  • the function of the deflector 8 is also to form adequate turbulence to facilitate the inflation of this bag 3 and the penetration of air inside via its opening 30.
  • the air deflector 8 is mounted movable relative to the external blowing face 15 so that the deviation of the air flow can be modified - in particular as a function of the height of the stack 5 of bags - so that only the bag 3 placed above receives the air flow.
  • the free end edge 41 of the deflector 8 rests on the strip 31 of the last bag 3 placed above the stack 5 and rises or falls according to the height of the stack 5.
  • a modification of the angle of deflection of the air flow automatically without any manual action by the user.
  • the deflector 8 comprises a portion 21 downstream with respect to the air current, the extreme free edge 41 of which is required to remain at the level of the bag placed above the stack 5. The deflector 8 therefore clamps the strips 31 of the bags against the blowing face 15.
  • the deflector 8 comprises an upstream portion 20 penetrating inside the casing 7 through an opening 42 formed through the wall 23 of the casing 7 forming the external blowing face 15.
  • This opening 42 is formed by a light disposed immediately downstream of the blowing mouth 6.
  • the upstream portion 20 of the deflector 8 is inclined relative to the plane of the external blowing face 15 so as to deflect the current of air away from this external blowing face 15.
  • This upstream portion penetrates through the opening 42 so that the modification of inclination of the deflector 8 can be easily obtained while ensuring the efficiency of the deflection of the air current at the outlet of the blowing mouth 6.
  • the upstream portion 20 of the deflector 8 is articulated at the downstream edge 43 of the opening 42 by a hinge 10 comprising a return spring 11 which tends to reduce the deflection of the air current induced by the deflector 8.
  • the spring 11 which is for example a spiral spring incorporated in the hinge 10 tends to bring the downstream portion 21 of the deflector 8 closer to the external blowing face 15 and to reduce the angle formed by the upstream portion 20 of the deflector 8 with respect to the current of air at the outlet of the blowing mouth 6.
  • the downstream portion 21 extends the upstream portion 20 towards the support plate 16 continuously but as shown in FIG. 2 with a lower angle of inclination relative to the external blowing face.
  • the two portions 20, 21 of the deflector 8 can be joined by a fold line as shown in FIG. 2 or, on the contrary, be connected with a continuous variation in curvature.
  • the pin 9 is carried by the deflector 8 and is rigidly associated with the deflector 8 by a 44 of its ends.
  • the other end 45 of the pin 9 which is free penetrates into the perforations 32 of the bags and is turned towards the external face 15 of blowing.
  • the pin 9 is associated with the free end edge 41 of the downstream portion 21 of the deflector 8 by its end 44, and extends at least substantially perpendicular to the deflector 8 and at its free end edge 41, towards the external face 15 of blowing at from this edge 41, to its free end 45.
  • the plug 9 is flared perpendicularly to the air stream, that is to say that its free end 45 is of narrower width than its end 44 associated with the deflector 8.
  • the pin 9 is generally triangular and pointed.
  • the external blowing face 15 is provided with a lumen 12 facing the ankle 9.
  • the lumen 12 is oblong in the direction perpendicular to the air flow, for example rectangular, and the perforations 32 of the bags 3 are circular, the width of the oblong opening 12 being narrower than the diameter of the perforations 32.
  • the deflector 8 is provided with two handles 46 making it possible to manipulate it, that is to say to move it away from the external blowing face 15 to place a new stack 5 of bags.
  • the dowel 9 is inserted into the perforations 32 and the pointed shape of this dowel 9 as well as the oblong opening 12 effect automatic centering and jamming of the stack of bags under the effect of the return spring 11 .
  • the blowing mouth 6 is formed in a riser 22 connecting two parallel and offset walls 23, 24 of the casing 7, one of which 23 forms the outer blowing face 15.
  • the device further comprises means 14 for creating turbulence in the current of air.
  • the fan 13 is inserted into a turbulence chamber 14 rigidly associated with the casing 7, the outlet of which corresponds to the blowing mouth 6 and the inlet 25 of which faces the wall 26 of the casing 7 which is opposite the face. 15 external blowing.
  • This wall 26 is provided with perforations 27 which allow the passage of air.
  • the foot 18 associated with the casing 7 with this wall 26 is then hollow so as to also allow the passage of air through the perforations 27 into the chamber 14 of turbulence.
  • the fan 13 is an axial fan whose axis 47 is oriented at least substantially in the same direction as the external blowing face 15 and that the blowing mouth 6.
  • the chamber 14 of turbulence is flared between its inlet 25 where it has a smaller section, and the wall 24 of the casing 7 offset with respect to the external blowing face 15 where this chamber 14 of turbulence has a larger section , the blowing mouth 6 being disposed sideways with respect to this larger section.
  • a large turbulence current is thus created in the air current formed by the fan 13.
  • this air current is caused to ricochet against the internal face 48 of the wall 24 of the casing 7 before exiting through the mouth. 6 blowing.
  • the cross section that is to say the section perpendicular to the general direction of the air flow from the inlet 25 of the turbulence chamber 14 has an area similar to that of the cross section of the blow mouth 6.
  • the casing 7 also contains electrical supply means 49 and wires 50 for connection between this electrical supply 49 and the fan 13.
  • An electrical outlet 51 allows connection of the supply 49 through the side wall to an electrical network.
  • the free end 40 of the support plate 16 is curved opposite the casing 7 so as to form a heel 52.
  • this free end 40 is preferably made up of an independent part associated in an adjustable manner with the support plate 16 which has a longitudinal lumen 53.
  • a lug 54 is associated with the free end 40 for sliding inside, of the longitudinal lumen 53, and the free end 40 is associated by screws 55 tightened by butterflies 56 which allow this free end 40 to be blocked on the support plate 16.
  • the support plate 16 can be associated in a non-removable manner with the wall 23 forming the external blowing face 15 or, preferably as shown, detachably by means of screws 57 and tightening butterflies 58.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)

Abstract

The invention relates to an apparatus for facilitating the packaging of objects, e.g. loaves, in bags (3). The apparatus according to the invention comprises an air deflector (8) arranged at the output of a blowing orifice (6) and which is mounted movably so that the deflection of the flow of air can be altered so that only the bag (3) placed on top of the stack (5) receives the flow of air, and means (9) for holding the stack (5) of bags, comprising a pin (9) associated with the deflector (8) and extending towards an outer blowing face (15) in a perforation (32) of the strip (31) of each of the bags, which strip is made of a tearable material - in particular of paper. <IMAGE>

Description

L'invention concerne un dispositif pour faciliter l'emballage d'objets - notamment d'objets longs tels que des pains- dans des sacs tels que des sacs à soufflets latéraux, initialement pliés à plat et empilés en une pile.The invention relates to a device for facilitating the packaging of objects - in particular long objects such as breads - in bags such as side bellows bags, initially folded flat and stacked in a stack.

Il est souvent nécessaire de placer des objets dans des sacs initialement pliés à plat et empilés, sans pour autant que la fermeture ultérieure de l'ouverture du sac ne soit imposée. Tel est le cas en particulier de certains produits frais qui doivent être ensachés après leur fabrication en vue de leur vente à la clientèle. Par exemple, le pain vendu dans les magasins en libre service doit être recouvert d'un sac.It is often necessary to place objects in bags initially folded flat and stacked, without the subsequent closure of the opening of the bag being imposed. This is particularly the case for certain fresh products which must be bagged after their manufacture in order to be sold to customers. For example, bread sold in self-service stores must be covered with a bag.

On connaît déjà de la demande de brevet français FR-A-2470731 un dispositif d'emballage automatique d'objets de forme allongée tels que des pains. Ce document vise à automatiser intégralement l'opération d'ensachage et à en augmenter la cadence en fournissant un dispositif comprenant plusieurs lignes d'ensachage parallèles. Les pains sont alimentés automatiquement par un tapis transporteur en plusieurs lignes parallèles jusqu'à un magasin d'alimentation de sachets qui comprend un poste de ventilation destiné à souffler de l'air sur l'ouverture des sachets pour les épanouir et faciliter la pénétration du pain dans ces sachets.We already know from French patent application FR-A-2470731 an automatic packaging device for elongated objects such as breads. This document aims to fully automate the bagging operation and to increase its rate by providing a device comprising several parallel bagging lines. The breads are fed automatically by a conveyor belt in several parallel lines to a bag supply store which includes a ventilation station intended to blow air over the opening of the bags to open them out and facilitate the penetration of the bread in these sachets.

Ce dispositif connu présente néanmoins des imperfections et de nombreux inconvénients qui empêchent son exploitation. En particulier, l'objectif visé d'automatiser intégralement l'opération d'ensachage induit la réalisation d'un dispositif complexe, coûteux, et extrêmement délicat à régler et à faire fonctionner. Or, en pratique, il s'avère que dans la plupart des situations, l'automatisation intégrale de l'opération d'ensachage n'est pas requise. De plus, les débits requis ne sont pas généralement tels qu'il soit nécessaire de prévoir des machines à plusieurs lignes d'ensachage automatique parallèles. Or, le réglage du poste de ventilation du dispositif connu est extrêmement délicat voire impossible. Ainsi, en pratique, soit le courant d'air a un débit insuffisant pour effectivement épanouir suffisamment les sacs, soit procure un courant d'air tel que l'intégralité des sacs d'une même pile sont soufflés et emportés par le courant d'air, le maintien des sacs étant insuffisant.This known device nevertheless has imperfections and numerous drawbacks which prevent it from being used. In particular, the objective aimed at fully automating the bagging operation induces the production of a complex device, costly, and extremely difficult to adjust and operate. Now, in practical, it turns out that in most situations, full automation of the bagging operation is not required. In addition, the flow rates required are not generally such that it is necessary to provide machines with several parallel automatic bagging lines. However, the adjustment of the ventilation station of the known device is extremely delicate or even impossible. Thus, in practice, either the air stream has an insufficient flow rate to effectively open the bags sufficiently, or provides an air stream such that all the bags in the same stack are blown and carried away by the stream of air, the maintenance of the bags being insufficient.

Par ailleurs, ce dispositif connu est encombrant, lourd et ne peut pas être aisément déplacé. Finalement, son coût et sa complexité le rendent hors de portée des utilisateurs potentiels qui sont généralement des entreprises commerciales de petite dimension.Furthermore, this known device is bulky, heavy and cannot be easily moved. Finally, its cost and complexity make it beyond the reach of potential users who are generally small commercial enterprises.

L'invention vise donc à remédier à ces inconvénients en proposant un dispositif permettant de faciliter l'emballage d'objets - notamment d'objets longs tels que des pains- dans des sacs sans pour autant que l'introduction des objets dans les sacs doive être effectuée automatiquement. Ainsi, le but général de la présente invention n'est pas d'automatiser intégralement l'opération d'ensachage, mais uniquement de faciliter l'ensachage manuel et d'en augmenter la productivité. Simultanément, l'invention vise à proposer un tel dispositif qui soit compact, de faible encombrement, léger, ergonomique, qui puisse être utilisé dans différentes positions possibles, et qui ne nécessite aucun réglage particulier.The invention therefore aims to remedy these drawbacks by proposing a device making it possible to facilitate the packaging of objects - in particular long objects such as breads - in bags without, however, the introduction of the objects into the bags having to be done automatically. Thus, the general aim of the present invention is not to fully automate the bagging operation, but only to facilitate manual bagging and to increase its productivity. Simultaneously, the invention aims to propose such a device which is compact, compact, light, ergonomic, which can be used in different possible positions, and which does not require any particular adjustment.

Le brevet américain US-A-3 678 652 décrit déjà un dispositif pour ouvrir des sacs comprenant un déflecteur qui pince la pile de sacs contre une face de carter et un étrier en U chevauchant les bandes en saillie des sacs pour les serrer et les maintenir. L'installation d'une nouvelle pile de sacs est donc fastidieuse puisqu'elle nécessite la pose de l'étrier qui est une opération délicate dans le contexte commercial d'utilisation du dispositif par des opérateurs non précautionneux. De plus, l'efficacité du maintien des sacs varie au fur et à mesure de l'épuisement de la pile ce qui nécessiterait un réglage du débit d'air au cours de l'utilisation.American patent US-A-3,678,652 already describes a device for opening bags comprising a deflector which clamps the stack of bags against a housing face and a U-shaped stirrup overlapping the protruding bands of the bags to tighten and hold them. Installing a new stack of bags is therefore tedious since it requires the installation of the stirrup which is a delicate operation in the commercial context of use of the device by non-cautious operators. In addition, the effectiveness of holding the bags varies as the battery becomes depleted, which would require adjusting the air flow during use.

Ainsi, l'invention vise à proposer un dispositif qui permette d'ouvrir le sac placé au-dessus d'une pile de sacs afin de faciliter l'introduction manuelle d'un objet dans ce sac, en évitant ainsi à l'utilisateur d'avoir à prendre le sac et à l'ouvrir. L'invention vise donc uniquement à automatiser l'opération d'ouverture des sacs.Thus, the invention aims to propose a device which makes it possible to open the bag placed above a stack of bags in order to facilitate the manual introduction of an object into this bag, thereby avoiding the user having to have to take the bag and open it. The invention therefore aims only to automate the opening operation of the bags.

Et dans ce cadre, l'invention vise à proposer un tel dispositif grâce auquel l'installation ou le chargement d'une pile de sacs est instantané et ne nécessite qu'une opération. De plus l'invention vise à proposer un tel dispositif qui ne nécessite aucun réglage particulier du maintien des sacs ni des moyens pour souffler le sac placé au-dessus de la pile, que ce soit au début ou en cours d'utilisation. Plus particulièrement, l'invention vise à proposer un tel dispositif grâce auquel l'orientation du courant d'air est toujours automatiquement adaptée à la hauteur de la pile de sacs, et le maintien des sacs reste constant et de même nature au fur et à mesure de l'utilisation.And in this context, the invention aims to propose such a device by means of which the installation or loading of a stack of bags is instantaneous and requires only one operation. In addition, the invention aims to propose such a device which does not require any particular adjustment of the maintenance of the bags or of the means for blowing the bag placed above the stack, whether at the start or during use. More particularly, the invention aims to propose such a device by which the orientation of the air flow is always automatically adapted to the height of the stack of bags, and the maintenance of the bags remains constant and of the same kind as and usage measurement.

Enfin, l'invention vise à proposer un tel dispositif qui soit d'un faible prix de revient, et qui incorpore l'intégralité des différentes fonctionnalités utiles à son utilisation pratique, en particulier qui puisse s'adapter à plusieurs types de sacs, qui puisse fonctionner selon différentes positions possibles - notamment une position au moins sensiblement horizontale et une position au moins sensiblement verticale de la pile de sacs-, qui puisse être posé sur une table et/ou suspendu à une surface verticale, de telle sorte que ce dispositif puisse aisément être installé et utilisé dans les magasins.Finally, the invention aims to propose such a device which is of low cost, and which incorporates all of the various functionalities useful for its practical use, in particular which can be adapted to several types of bags, which can operate in different possible positions - including a position at less substantially horizontal and an at least substantially vertical position of the stack of bags, which can be placed on a table and / or suspended from a vertical surface, so that this device can easily be installed and used in stores.

Pour ce faire, l'invention concerne un dispositif pour faciliter l'emballage d'objets - notamment d'objets longs tels que des pains - dans des sacs initialement pliés à plat comprenant une ouverture et une bande en saillie de l'ouverture formant une seule épaisseur longitudinale, les sacs étant empilés en une pile en prolongement d'une bouche de soufflage orientée pour former un courant d'air dans une direction au moins parallèle et à la surface d'une face extérieure de soufflage, le dispositif comprenant en outre un ventilateur, un déflecteur d'air disposé à la sortie de la bouche de soufflage et monté mobile de sorte que la déviation du courant d'air peut être modifiée - notamment en fonction de la hauteur de la pile - pour que seul le sac placé au dessus reçoive le courant d'air, et des moyens de maintien de la pile de sacs, caractérisé en ce que les moyens de maintien comprennent une cheville associée au déflecteur et s'étendant vers la face extérieure de soufflage dans une perforation de la bande de chacun des sacs qui est constituée d'une matière susceptible de se déchirer - notamment en papier -.To do this, the invention relates to a device for facilitating the packaging of objects - in particular long objects such as breads - in bags initially folded flat comprising an opening and a strip projecting from the opening forming a single longitudinal thickness, the bags being stacked in a stack as an extension of an oriented blowing mouth to form an air flow in a direction at least parallel and to the surface of an external blowing face, the device further comprising a fan, an air deflector arranged at the outlet of the blowing mouth and mounted movably so that the deviation of the air flow can be modified - in particular according to the height of the stack - so that only the bag placed above receives the air flow, and means for holding the stack of bags, characterized in that the holding means comprise a pin associated with the deflector and extending towards the outer face of the ufflage in a perforation of the strip of each of the bags which is made of a material capable of tearing - especially paper -.

Selon l'invention, les sacs d'emballage de pains par exemple sont en papier et comportent une bande d'extrémité en saillie à leur ouverture dans le sens de la longueur. Ainsi, lorsque les sacs sont empilés, ils présentent une seule feuille de papier à leur extrémité située du côté de l'ouverture.According to the invention, the bread packaging bags for example are made of paper and have an end strip projecting at their opening lengthwise. Thus, when the bags are stacked, they have a single sheet of paper at their end situated on the side of the opening.

Selon l'invention, le déflecteur comprend une portion amont s'étendant à travers la face extérieure de soufflage qui est pourvue d'une ouverture ménagée immédiatement en aval de la bouche de soufflage. Cette portion amont est articulée à un bord de l'ouverture par une charnière comprenant un ressort de rappel. Le déflecteur comprend également une portion aval prolongeant la portion amont vers la pile de sacs posée sur une plaque de support.According to the invention, the deflector comprises an upstream portion extending through the external blowing face which is provided with an opening formed immediately in downstream of the blowing mouth. This upstream portion is articulated at an edge of the opening by a hinge comprising a return spring. The deflector also includes a downstream portion extending the upstream portion towards the stack of bags placed on a support plate.

Selon l'invention, la cheville est associée rigidement au déflecteur et est tournée vers la face extérieure de soufflage. Selon une autre caractéristique de l'invention, la cheville est évasée, son extrémité libre étant de moindre largeur que son extrémité d'association au déflecteur, par exemple globalement triangulaire et pointue, et la face extérieure de soufflage est pourvue d'une lumière, par exemple oblongue, en regard de la cheville. Les perforations des sacs sont circulaires et la largeur de la lumière oblongue est plus faible que le diamètre des perforations.According to the invention, the plug is rigidly associated with the deflector and is turned towards the external blowing face. According to another characteristic of the invention, the dowel is flared, its free end being of narrower width than its end of association with the deflector, for example generally triangular and pointed, and the external blowing face is provided with a light, for example oblong, opposite the ankle. The perforations in the bags are circular and the width of the oblong opening is smaller than the diameter of the perforations.

Selon l'invention, le dispositif comprend un carter fermé contenant le ventilateur associé rigidement au carter, et une plaque de support de la pile associée rigidement au carter en prolongement de la bouche de soufflage dans la direction du courant d'air, de façon à former un appareil d'un seul tenant, compact, léger et maniable permettant l'insertion manuelle aisée et ergonomique des objets dans les sacs. Selon l'invention, le dispositif est principalement constitué du carter fermé contenant le ventilateur, de la bouche de soufflage, de la plaque de support et des moyens de maintien de la pile.According to the invention, the device comprises a closed casing containing the fan rigidly associated with the casing, and a battery support plate rigidly associated with the casing in extension of the blowing mouth in the direction of the air flow, so as to form a device in one piece, compact, light and handy allowing easy and ergonomic manual insertion of objects into the bags. According to the invention, the device mainly consists of the closed casing containing the fan, the blowing mouth, the support plate and means for holding the battery.

Selon l'invention, le carter a une forme et des dimensions telles qu'il peut reposer directement ou par l'intermédiaire d'un ou plusieurs pieds sur une surface horizontale selon au moins deux positions correspondant à au moins deux orientations de la plaque de support - notamment une orientation au moins sensiblement horizontale et une orientation au moins sensiblement verticale-.According to the invention, the casing has a shape and dimensions such that it can rest directly or through one or more feet on a horizontal surface in at least two positions corresponding to at least two orientations of the plate. support - in particular an orientation at least substantially horizontal and an orientation at least substantially vertical -.

Le carter comporte une face plane et/ou des pieds opposés à la face extérieure de soufflage permettant de coucher le dispositif avec la plaque de support au moins sensiblement horizontale.The casing has a flat face and / or feet opposite the external blowing face enabling the device to be laid down with the support plate at least substantially horizontal.

La plaque de support prolonge la face extérieure de soufflage au-delà de son bord extrême libre qui forme une arête de jonction avec une autre face plane du carter, cette autre face formant un angle avec la plaque de support de telle sorte que lorsque cette autre face repose sur une surface horizontale, la plaque de support est au moins sensiblement verticale.The support plate extends the external blowing face beyond its free end edge which forms a junction edge with another flat face of the casing, this other face forming an angle with the support plate so that when this other face rests on a horizontal surface, the support plate is at least substantially vertical.

La plaque de support a son extrémité libre munie d'un pied s'étendant du côté du carter.The support plate has its free end provided with a foot extending on the side of the casing.

Selon une caractéristique de l'invention, la largeur du carter perpendiculairement à la face extérieure de soufflage est plus grande du côté de la plaque de support qu'à l'extrémité opposée, et le dispositif comporte un pied s'étendant à partir de et au moins sensiblement perpendiculairement à la face opposée à la face extérieure de soufflage et du côté opposé à la plaque de support. Selon une autre caractéristique de l'invention, le carter est polyédrique - notamment en forme de prisme droit dont les bases forment les parois latérales verticales du carter-.According to a characteristic of the invention, the width of the casing perpendicular to the external blowing face is greater on the side of the support plate than at the opposite end, and the device comprises a foot extending from and at least substantially perpendicular to the face opposite to the external blowing face and on the side opposite to the support plate. According to another characteristic of the invention, the casing is polyhedral - in particular in the form of a straight prism whose bases form the vertical lateral walls of the casing.

Selon une autre caractéristique de l'invention, la bouche de soufflage est ménagée dans une contremarche reliant deux parois du carter dont l'une forme la face extérieure de soufflage. Et le ventilateur est inséré dans une chambre de turbulences dont l'entrée est en regard d'une paroi perforée opposée à la face extérieure de soufflage, et dont la sortie correspond à la bouche de soufflage. Cette chambre de turbulences est évasée et a une section d' entrée dont l'aire est semblable à celle de la section de sortie.According to another characteristic of the invention, the blowing mouth is formed in a riser connecting two walls of the casing, one of which forms the external blowing face. And the fan is inserted into a turbulence chamber, the inlet of which is opposite a perforated wall opposite the external blowing face, and the outlet of which corresponds to the blowing mouth. This turbulence chamber is flared and has an inlet section whose area is similar to that of the outlet section.

L'invention concerne également un tel dispositif qui comporte en combinaison tout ou partie des caractéristiques mentionnée ci-dessus ou ci-après.The invention also relates to such a device which comprises, in combination, all or some of the characteristics mentioned above or below.

Par ailleurs, l'invention concerne un sac d'emballage d'objets (notamment d'objets longs tels que des pains), comprenant une ouverture et une bande en saillie de l'ouverture formant, lorsque le sac est plié à plat, une seule épaisseur longitudinale, caractérisé en ce que la bande comporte une perforation et en ce que la bande au moins est constituée d'une matière susceptible de se déchirer - notamment en papier-. Selon l'invention, la perforation est circulaire et au moins sensiblement centrée sur la bande.Furthermore, the invention relates to a bag for packaging objects (in particular long objects such as breads), comprising an opening and a strip projecting from the opening forming, when the bag is folded flat, a single longitudinal thickness, characterized in that the strip has a perforation and in that at least the strip consists of a material capable of tearing - in particular paper -. According to the invention, the perforation is circular and at least substantially centered on the strip.

L'invention procure ainsi un dispositif qui s'avère satisfaire aux buts mentionnés ci-dessus, et notamment qui est parfaitement compact, léger, qui peut prendre plusieurs positions possibles, qui est de faible coût, simple à réaliser, et qui ne nécessite aucun réglage particulier, seul le sac situé au-dessus de la pile étant effectivement gonflé, les autres sacs étant maintenus, et ce quelle que soit la hauteur de la pile.The invention thus provides a device which proves to meet the above-mentioned aims, and in particular which is perfectly compact, light, which can take several possible positions, which is low cost, simple to make, and which requires no particular setting, only the bag located above the stack is actually inflated, the other bags being held, regardless of the height of the stack.

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description suivante qui se réfère aux figures annexées représentant à titre d'exemple non limitatif un mode de réalisation préférentiel, et dans lesquels :

  • La figure 1 est une vue en perspective d'un dispositif selon l'invention en position horizontale.
  • La figure 2 est une vue en coupe verticale d'un dispositif selon l'invention en position verticale.
  • La figure 3 est une vue de détail d'un sac selon l'invention utilisable avec un dispositif selon l'invention.
Other characteristics and advantages of the invention will appear on reading the following description which refers to the appended figures representing by way of nonlimiting example a preferred embodiment, and in which:
  • Figure 1 is a perspective view of a device according to the invention in a horizontal position.
  • Figure 2 is a vertical sectional view of a device according to the invention in a vertical position.
  • Figure 3 is a detail view of a bag according to the invention usable with a device according to the invention.

Le dispositif 1 selon l'invention est destiné à faciliter l'emballage d'objets 2 (qui ne font pas partie intégrante de l'invention) - notamment d'objets longs tels que des pains comme représenté sur les figures- dans des sacs 3 initialement pliés à plat, ces sacs 3 étant empilés en une pile 5. Les sacs sont par exemple du type à soufflets latéraux 4, bien que cela ne soit pas strictement nécessaire dès lors que les sacs 3 peuvent être gonflés. Sur la figure 1, le dispositif 1 est représenté sans sacs.The device 1 according to the invention is intended to facilitate the packaging of objects 2 (which are not an integral part of the invention) - in particular long objects such as breads as shown in the figures - in bags 3 initially folded flat, these bags 3 being stacked in a stack 5. The bags are for example of the side bellows type 4, although this is not strictly necessary since the bags 3 can be inflated. In Figure 1, the device 1 is shown without bags.

Le dispositif 1 selon l'invention comprend des moyens 6, 8, 13 pour souffler le sac 3 placé au-dessus de la pile 5, c'est-à-dire pour former un courant d'air en direction de l'ouverture 30 de ce sac 3 en vue de le gonfler. Le dispositif 1 selon l'invention comprend également des moyens 9 de maintien de la pile 5 de sacs dont la fonction est d'éviter que les sacs 3 ne s'envolent sous l'effet du courant d'air généré par les moyens 6, 8, 13 générant ce courant d'air.The device 1 according to the invention comprises means 6, 8, 13 for blowing the bag 3 placed above the stack 5, that is to say to form a stream of air in the direction of the opening 30 of this bag 3 in order to inflate it. The device 1 according to the invention also comprises means 9 for holding the stack 5 of bags, the function of which is to prevent the bags 3 from flying away under the effect of the air current generated by the means 6, 8, 13 generating this air flow.

Le dispositif 1 selon l'invention est principalement constitué, outre les moyens de maintien, d'un carter 7 fermé contenant un ventilateur 13 qui est associé rigidement à ce carter 7, et qui souffle de l'air dans une bouche 6 de soufflage orientée pour former un courant d'air dans une direction au moins sensiblement parallèle à et à la surface d'une face 15 extérieure de soufflage plane du carter 7, et d'une plaque 16 de support de la pile 5, cette plaque de support étant associée rigidement au carter 7 en prolongement de la bouche 6 de soufflage dans la direction du courant d'air, de façon à former un appareil d'un seul tenant, compact, léger et maniable permettant l'insertion manuelle aisée et ergonomique des objets 2 dans les sacs 3. Le dispositif selon l'invention comporte aussi des moyens 8 de déviation du courant d'air entre la bouche 6 de soufflage et la plaque 16 de support. La plaque 16 de support est allongée et plane et a des dimensions correspondant à celles des sacs 3 pour les supporter en une pile 5.The device 1 according to the invention mainly consists, in addition to the holding means, of a closed casing 7 containing a fan 13 which is rigidly associated with this casing 7, and which blows air into an oriented blowing mouth 6 to form a stream of air in a direction at least substantially parallel to and to the surface of an outer blowing face 15 of the flat casing 7, and of a battery support plate 16 5, this support plate being rigidly associated with the casing 7 as an extension of the blowing mouth 6 in the direction of the air flow, so as to form a device in one piece, compact, light and manageable allowing easy and ergonomic manual insertion of the objects 2 in the bags 3. The device according to the invention also comprises means 8 for deflecting the air flow between the blowing mouth 6 and the support plate 16. Plate 16 of support is elongated and flat and has dimensions corresponding to those of the bags 3 to support them in a stack 5.

Le carter 7 a une forme et des dimensions telles qu'il peut reposer directement ou par l'intermédiaire d'un ou plusieurs pieds 17, 18 sur une surface horizontale 28,29 selon au moins deux positions correspondant à au moins deux orientations de la plaque 16 de support. Sur la figure 1, le dispositif 1 repose sur une surface horizontale 28 par l'intermédiaire de deux pieds 17, 18 et d'une arête 33 du carter 7 et la plaque 16 de support a une orientation au moins sensiblement horizontale, de préférence légèrement inclinée par rapport à l'horizontale de façon que le fond 34 des sacs soit à un niveau légèrement inférieur à leur ouverture 30. Sur la figure 2 au contraire, le carter 7 repose sur une surface horizontale 29 formée par exemple par une table 35 et le carter 7 présente une face plane 19 en contact avec cette surface horizontale 29, la plaque 16 de support ayant une position au moins sensiblement verticale, de préférence légèrement inclinée par rapport à la verticale.The casing 7 has a shape and dimensions such that it can rest directly or through one or more feet 17, 18 on a horizontal surface 28, 29 according to at least two positions corresponding to at least two orientations of the support plate 16. In FIG. 1, the device 1 rests on a horizontal surface 28 by means of two feet 17, 18 and an edge 33 of the casing 7 and the support plate 16 has an orientation at least substantially horizontal, preferably slightly inclined relative to the horizontal so that the bottom 34 of the bags is at a level slightly lower than their opening 30. In FIG. 2 on the contrary, the casing 7 rests on a horizontal surface 29 formed for example by a table 35 and the casing 7 has a flat face 19 in contact with this horizontal surface 29, the support plate 16 having an at least substantially vertical position, preferably slightly inclined relative to the vertical.

Ainsi, comme on le voit sur la figure 1, le carter 7 comporte des pieds 17, 18 opposés à la face 15 extérieure de soufflage permettant de coucher ce dispositif 1 avec la plaque 16 de support au moins sensiblement horizontale. En variante ou en combinaison, le carter 7 peut présenter une face plane dont l'orientation est telle que les pieds 17 ou 18 ne sont pas rendus nécessaires. Par exemple, le carter pourrait présenter une face plane reliant l'arête 33 à l'extrémité libre 36 du pied 18 qui serait alors partie intégrante au carter 7.Thus, as can be seen in FIG. 1, the casing 7 has feet 17, 18 opposite the external blowing face 15 allowing this device 1 to be laid down with the support plate 16 at least substantially horizontal. As a variant or in combination, the casing 7 may have a flat face whose orientation is such that the feet 17 or 18 are not made necessary. For example, the casing could have a flat face connecting the edge 33 to the free end 36 of the foot 18 which would then be an integral part of the casing 7.

Dans le mode de réalisation préférentiel représenté, et selon l'invention, la largeur du carter 7 perpendiculairement à la face 15 extérieure de soufflage est plus grande du côté de la plaque 16 de support qu'à l'extrémité opposée 37. En particulier, cela permet de prévoir que la paroi 26 opposée à la face 15 extérieure de soufflage puisse être verticale lorsque la plaque de support 16 est légèrement inclinée par rapport à la verticale dans la position de la figure 2. Cela permet également d'assurer la stabilité du dispositif 1 dans cette position où la plaque 16 de support est au moins sensiblement verticale. Selon l'invention, le dispositif 1 comporte alors un pied 18 s'étendant à partir de et au moins sensiblement perpendiculaire à la face 38 extérieure de la paroi 26 opposée à la face 15 extérieure de soufflage. Ce pied 18 s'étend du côté opposé à la plaque 16 de support et à une hauteur appropriée selon l'inclinaison par rapport à l'horizontale que l'on souhaite obtenir du dispositif 1 dans la position de la figure 1. Le pied 18 est associé rigidement au carter 7, avantageusement de façon démontable. On pourra noter également que dans la position de la figure 2, ce pied 18 peut servir de moyen de fixation à une surface verticale, son extrémité libre 36 pouvant être associée rigidement par une vis ou autre à une telle surface verticale.In the preferred embodiment shown, and according to the invention, the width of the casing 7 perpendicular to the external blowing face 15 is larger on the side of the support plate 16 than at the opposite end 37. In particular, this makes it possible to provide that the wall 26 opposite the external blowing face 15 can be vertical when the support plate 16 is slightly inclined relative to the vertical in the position of Figure 2. This also ensures the stability of the device 1 in this position where the support plate 16 is at least substantially vertical. According to the invention, the device 1 then comprises a foot 18 extending from and at least substantially perpendicular to the outer face 38 of the wall 26 opposite to the outer blowing face 15. This foot 18 extends on the side opposite to the support plate 16 and at an appropriate height according to the inclination with respect to the horizontal which it is desired to obtain from the device 1 in the position of FIG. 1. The foot 18 is rigidly associated with the casing 7, advantageously in a removable manner. It may also be noted that in the position of FIG. 2, this foot 18 can serve as a means of attachment to a vertical surface, its free end 36 being able to be rigidly associated by a screw or the like with such a vertical surface.

Par ailleurs, la plaque 16 de support prolonge la face 15 extérieure de soufflage au-delà de son bord extrême libre 39 qui forme une arête de jonction avec une autre face 19 plane du carter 7, cette autre face 19 formant un angle avec la plaque 16 de support de telle sorte que lorsque cette autre face 19 repose sur une surface horizontale telle que 29, la plaque 16 de support est au moins sensiblement verticale. Si l'on veut que la plaque 16 de support soit strictement verticale, l'autre face 19 devrait faire un angle droit avec la face 15 extérieure de soufflage. Selon l'invention, on préfère néanmoins que l'angle formé entre la face 15 extérieure de soufflage et l'autre face 19 du carter forme un angle inférieur à 90° - notamment légèrement inférieur à 90° et supérieur à 60°- de façon à incliner légèrement la plaque 16 de support et la pile 5 par rapport à la verticale comme représenté sur la figure 2. La plaque 16 de support a son extrémité libre 40 munie d'un pied 17 s'étendant sous cette plaque 16 de support du côté du carter 7, c'est-à-dire dans la même direction que le pied 18 associé rigidement au carter 7. Ce pied 17 est associé rigidement à l'extrémité libre 40 avantageusement de façon démontable.Furthermore, the support plate 16 extends the external blowing face 15 beyond its free end edge 39 which forms a junction edge with another flat face 19 of the casing 7, this other face 19 forming an angle with the plate 16 of support so that when this other face 19 rests on a horizontal surface such as 29, the support plate 16 is at least substantially vertical. If the support plate 16 is to be strictly vertical, the other face 19 should form a right angle with the external blowing face 15. According to the invention, it is nevertheless preferred that the angle formed between the external blowing face 15 and the other face 19 of the casing forms an angle of less than 90 ° - in particular slightly less than 90 ° and greater than 60 ° - so as to slightly tilt the support plate 16 and the stack 5 relative to the vertical as shown in the Figure 2. The support plate 16 has its free end 40 provided with a foot 17 extending under this support plate 16 on the side of the housing 7, that is to say in the same direction as the associated foot 18 rigidly to the casing 7. This foot 17 is rigidly associated with the free end 40 advantageously in a removable manner.

Selon l'invention, le carter 7 est polyédrique et, sur les figures, en forme de prisme droit dont les bases forment des parois latérales verticales du carter 7. Sur la figure 1, la paroi latérale verticale située vers l'avant de la figure n'a pas été représentée pour permettre d'illustrer les éléments contenus à l'intérieur du carter 7.According to the invention, the casing 7 is polyhedral and, in the figures, in the form of a straight prism whose bases form vertical side walls of the casing 7. In FIG. 1, the vertical side wall situated towards the front of the figure has not been shown to illustrate the elements contained inside the casing 7.

D'autres modes de réalisation du carter 7 et des pieds sont possibles pour obtenir un résultat équivalent, à savoir la possibilité de placer la plaque 16 de support dans au moins deux positions différentes, voire dans un nombre de positions supérieur à 2, selon les besoins. Les pieds 17, 18 peuvent être également associés de façon mobile et/ou amovible par rapport au dispositif 1 pour permettre leur réglage soit en longueur, soit en inclinaison.Other embodiments of the casing 7 and of the feet are possible to obtain an equivalent result, namely the possibility of placing the support plate 16 in at least two different positions, or even in a number of positions greater than 2, depending on the needs. The feet 17, 18 can also be associated in a mobile and / or removable manner relative to the device 1 to allow their adjustment either in length or in inclination.

Selon l'invention, les moyens 9 de maintien de la pile 5 de sacs comprennent une cheville 9 s'étendant dans une direction au moins sensiblement perpendiculaire à la face 15 extérieure de soufflage du carter 7 dans une perforation 32 ménagée dans une bande 31 d'extrémité en saillie de l'ouverture 30 de chacun des sacs 3, et cette bande 31 au moins est constituée d'une matière susceptible de se déchirer.According to the invention, the means 9 for holding the stack 5 of bags comprise a pin 9 extending in a direction at least substantially perpendicular to the external blowing face 15 of the casing 7 in a perforation 32 formed in a strip 31 d end projecting from the opening 30 of each of the bags 3, and this strip 31 at least consists of a material capable of tearing.

Ainsi, un sac 3 d'emballage d'objets - notamment d'objets longs tels que des pains- selon l'invention comprend des soufflets latéraux 4, une ouverture 30, un fond 34, et une bande 31 en saillie de l'ouverture 30 formant, lorsque le sac 3 est plié à plat, une seule épaisseur longitudinale. De tels sacs d'emballage à bande d'ouverture en saillie 31 sont connus en eux-mêmes et notamment utilisés pour ensacher des pains. Selon l'invention, la bande 31 comporte une perforation 32 qui est par exemple et selon l'invention circulaire et au moins sensiblement centrée par rapport à la bande 31. Par ailleurs, la bande 31 en saillie au moins est constituée d'une matière susceptible de se déchirer - notamment en papier-. En pratique, on prévoit généralement que l'ensemble du sac 3 est réalisé dans la même matière, par exemple en papier.Thus, a bag 3 for packaging objects - in particular long objects such as breads - according to the invention comprises lateral bellows 4, an opening 30, a bottom 34, and a strip 31 projecting from the opening. 30 forming, when the bag 3 is folded flat, a single longitudinal thickness. Such packaging bags with projecting opening strip 31 are known in themselves and in particular used for bagging breads. According to the invention, the strip 31 comprises a perforation 32 which is for example and according to the invention circular and at least substantially centered with respect to the strip 31. Furthermore, the strip 31 projecting at least consists of a material likely to tear - especially in paper -. In practice, it is generally provided that the entire bag 3 is made of the same material, for example paper.

Ainsi, la cheville 9 pénétrant dans les perforations 32 maintient en place les sacs à l'encontre du courant d'air formé en sortie de la bouche 6 de soufflage. Le sac placé au-dessus de la pile 5 se gonfle ce qui facilite l'introduction de l'objet 2 à l'intérieur du sac 3. Puis, la bande 31 se déchire soit sous le poids de l'objet 2, soit sous l'effet d'une action de l'utilisateur pour permettre au sac muni de son contenu d'être séparé de la cheville 9 comme cela est indiqué sur la figure 2. En pratique, il a été constaté que la présence d'une cheville 9 pénétrant dans des perforations 32 permet de créer un courant d'air en sortie de la bouche 6 de soufflage suffisamment important pour gonfler effectivement le sac 3 placé au-dessus de la pile sans pour autant emporter l'intégralité de la pile 5.Thus, the pin 9 entering the perforations 32 holds the bags in place against the air flow formed at the outlet of the blowing mouth 6. The bag placed above the stack 5 inflates which facilitates the introduction of the object 2 inside the bag 3. Then, the band 31 is torn either under the weight of the object 2, or under the effect of a user action to allow the bag provided with its contents to be separated from the peg 9 as indicated in FIG. 2. In practice, it has been observed that the presence of a peg 9 penetrating into perforations 32 makes it possible to create a current of air at the outlet of the blowing mouth 6 large enough to effectively inflate the bag 3 placed above the stack without however taking away the entire stack 5.

Par ailleurs, le dispositif 1 selon l'invention comporte des moyens de déviation du courant d'air constitué d'un déflecteur 8 d'air disposé à la sortie de la bouche 6 de soufflage dont la fonction est de dévier le courant d'air en l'éloignant de la face 15 extérieure de soufflage selon un angle approprié pour que ce courant d'air soit effectivement dirigé vers le sac 3 situé au-dessus de la pile 5 mais uniquement vers ce sac 3. La fonction du déflecteur 8 est également de former des turbulences adéquates pour faciliter le gonflage de ce sac 3 et la pénétration de l'air à l'intérieur via son ouverture 30.Furthermore, the device 1 according to the invention comprises means for deflecting the air stream consisting of an air deflector 8 disposed at the outlet of the mouth 6 blowing whose function is to deflect the air flow away from the external blowing face 15 at an appropriate angle so that this air flow is effectively directed towards the bag 3 located above the stack 5 but only towards this bag 3. The function of the deflector 8 is also to form adequate turbulence to facilitate the inflation of this bag 3 and the penetration of air inside via its opening 30.

Le déflecteur 8 d'air est monté mobile par rapport à la face 15 extérieure de soufflage de sorte que la déviation du courant d'air peut être modifiée - notamment en fonction de la hauteur de la pile 5 de sacs- pour que seul le sac 3 placé au-dessus reçoive le courant d'air. Le bord extrême libre 41 du déflecteur 8 repose sur la bande 31 du dernier sac 3 placé au-dessus de la pile 5 et monte ou descend selon la hauteur de la pile 5. Et, selon l'invention, on obtient aussi une modification de l'angle de déviation du courant d'air automatiquement sans aucune action manuelle de l'utilisateur. Plus précisément, le déflecteur 8 comprend une portion 21 aval par rapport au courant d'air dont le bord extrême libre 41 est astreint à rester au niveau du sac placé au-dessus de la pile 5. Le déflecteur 8 pince donc les bandes 31 des sacs contre la face 15 de soufflage.The air deflector 8 is mounted movable relative to the external blowing face 15 so that the deviation of the air flow can be modified - in particular as a function of the height of the stack 5 of bags - so that only the bag 3 placed above receives the air flow. The free end edge 41 of the deflector 8 rests on the strip 31 of the last bag 3 placed above the stack 5 and rises or falls according to the height of the stack 5. And, according to the invention, a modification of the angle of deflection of the air flow automatically without any manual action by the user. More precisely, the deflector 8 comprises a portion 21 downstream with respect to the air current, the extreme free edge 41 of which is required to remain at the level of the bag placed above the stack 5. The deflector 8 therefore clamps the strips 31 of the bags against the blowing face 15.

Selon l'invention, le déflecteur 8 comprend une portion amont 20 pénétrant à l'intérieur du carter 7 à travers une ouverture 42 ménagée à travers la paroi 23 du carter 7 formant la face 15 extérieure de soufflage. Cette ouverture 42 est formée d'une lumière disposée immédiatement en aval de la bouche 6 de soufflage. Comme on le voit sur la figure 2, la portion amont 20 du déflecteur 8 est inclinée par rapport au plan de la face 15 extérieure de soufflage de façon à dévier le courant d'air en l'éloignant de cette face 15 extérieure de soufflage. Cette portion amont pénètre à travers l'ouverture 42 de façon que la modification d'inclinaison du déflecteur 8 puisse être aisément obtenue tout en assurant l'efficacité de la déviation du courant d'air en sortie de la bouche 6 de soufflage.According to the invention, the deflector 8 comprises an upstream portion 20 penetrating inside the casing 7 through an opening 42 formed through the wall 23 of the casing 7 forming the external blowing face 15. This opening 42 is formed by a light disposed immediately downstream of the blowing mouth 6. As can be seen in FIG. 2, the upstream portion 20 of the deflector 8 is inclined relative to the plane of the external blowing face 15 so as to deflect the current of air away from this external blowing face 15. This upstream portion penetrates through the opening 42 so that the modification of inclination of the deflector 8 can be easily obtained while ensuring the efficiency of the deflection of the air current at the outlet of the blowing mouth 6.

La portion amont 20 du déflecteur 8 est articulée au bord aval 43 de l'ouverture 42 par une charnière 10 comprenant un ressort de rappel 11 qui tend à diminuer la déviation du courant d'air induite par le déflecteur 8. Ainsi, le ressort 11 qui est par exemple un ressort spirale incorporé à la charnière 10 tend à rapprocher la portion aval 21 du déflecteur 8 de la face 15 extérieure de soufflage et à diminuer l'angle que forme la portion amont 20 du déflecteur 8 par rapport au courant d'air en sortie de la bouche 6 de soufflage.The upstream portion 20 of the deflector 8 is articulated at the downstream edge 43 of the opening 42 by a hinge 10 comprising a return spring 11 which tends to reduce the deflection of the air current induced by the deflector 8. Thus, the spring 11 which is for example a spiral spring incorporated in the hinge 10 tends to bring the downstream portion 21 of the deflector 8 closer to the external blowing face 15 and to reduce the angle formed by the upstream portion 20 of the deflector 8 with respect to the current of air at the outlet of the blowing mouth 6.

La portion 21 aval prolonge la portion amont 20 vers la plaque 16 de support de façon continue mais comme représenté sur la figure 2 avec un angle d'inclinaison par rapport à la face extérieure de soufflage plus faible. Les deux portions 20, 21 du déflecteur 8 peuvent être jointes par une ligne de pliage comme indiqué sur la figure 2 ou au contraire être raccordées avec une variation continue de courbure.The downstream portion 21 extends the upstream portion 20 towards the support plate 16 continuously but as shown in FIG. 2 with a lower angle of inclination relative to the external blowing face. The two portions 20, 21 of the deflector 8 can be joined by a fold line as shown in FIG. 2 or, on the contrary, be connected with a continuous variation in curvature.

Selon l'invention, la cheville 9 est portée par le déflecteur 8 et est associée rigidement au déflecteur 8 par une 44 de ses extrémités. L'autre 45 extrémité de la cheville 9 qui est libre pénètre dans les perforations 32 des sacs et est tournée vers la face 15 extérieure de soufflage. La cheville 9 est associée au bord extrême libre 41 de la portion aval 21 du déflecteur 8 par son extrémité 44, et s'étend au moins sensiblement perpendiculairement au déflecteur 8 et à son bord extrême libre 41, vers la face 15 extérieure de soufflage à partir de ce bord 41, jusqu'à son extrémité libre 45.According to the invention, the pin 9 is carried by the deflector 8 and is rigidly associated with the deflector 8 by a 44 of its ends. The other end 45 of the pin 9 which is free penetrates into the perforations 32 of the bags and is turned towards the external face 15 of blowing. The pin 9 is associated with the free end edge 41 of the downstream portion 21 of the deflector 8 by its end 44, and extends at least substantially perpendicular to the deflector 8 and at its free end edge 41, towards the external face 15 of blowing at from this edge 41, to its free end 45.

Selon l'invention, la cheville 9 est évasée perpendiculairement au courant d'air, c'est-à-dire que son extrémité libre 45 est de moindre largeur que son extrémité 44 d'association au déflecteur 8. Par exemple, et selon l'invention, la cheville 9 est globalement triangulaire et pointue.According to the invention, the plug 9 is flared perpendicularly to the air stream, that is to say that its free end 45 is of narrower width than its end 44 associated with the deflector 8. For example, and according to invention, the pin 9 is generally triangular and pointed.

Par ailleurs, selon l'invention, la face 15 extérieure de soufflage est pourvue d'une lumière 12 en regard de la cheville 9. De préférence, la lumière 12 est oblongue dans la direction perpendiculaire au courant d'air, par exemple rectangulaire, et les perforations 32 des sacs 3 sont circulaires, la largeur de la lumière 12 oblongue étant plus faible que le diamètre des perforations 32. On obtient ainsi un effet de coincement des sacs par la cheville 9 contre la face 15 extérieure de soufflage.Furthermore, according to the invention, the external blowing face 15 is provided with a lumen 12 facing the ankle 9. Preferably, the lumen 12 is oblong in the direction perpendicular to the air flow, for example rectangular, and the perforations 32 of the bags 3 are circular, the width of the oblong opening 12 being narrower than the diameter of the perforations 32. One thus obtains an effect of jamming of the bags by the pin 9 against the external blowing face 15.

Par ailleurs, le déflecteur 8 est muni de deux poignées 46 permettant de le manipuler, c'est-à-dire de l'éloigner de la face 15 extérieure de soufflage pour placer une nouvelle pile 5 de sacs. En relâchant la poignée 46, la cheville 9 est insérée dans les perforations 32 et la forme pointue de cette cheville 9 ainsi que la lumière 12 oblongue effectuent un centrage automatique et un coincement de la pile de sacs sous l'effet du ressort 11 de rappel. Une fois le déflecteur 8 en place, comme cela est représenté sur la figure 2, on voit que son orientation est automatiquement réalisée pour que seul le sac situé au-dessus de la pile 5 ne reçoive le courant d'air en sortie de la bouche 6 de soufflage.Furthermore, the deflector 8 is provided with two handles 46 making it possible to manipulate it, that is to say to move it away from the external blowing face 15 to place a new stack 5 of bags. By releasing the handle 46, the dowel 9 is inserted into the perforations 32 and the pointed shape of this dowel 9 as well as the oblong opening 12 effect automatic centering and jamming of the stack of bags under the effect of the return spring 11 . Once the deflector 8 in place, as shown in Figure 2, we see that its orientation is automatically achieved so that only the bag located above the stack 5 does not receive the air flow out of the mouth 6 blowing.

La bouche 6 de soufflage est ménagée dans une contremarche 22 reliant deux parois 23, 24 parallèles et décalées du carter 7 dont l'une 23 forme la face 15 extérieure de soufflage.The blowing mouth 6 is formed in a riser 22 connecting two parallel and offset walls 23, 24 of the casing 7, one of which 23 forms the outer blowing face 15.

Selon l'invention, le dispositif comporte en outre des moyens 14 pour créer des turbulences dans le courant d'air. Ainsi, le ventilateur 13 est inséré dans une chambre de turbulences 14 associée rigidement au carter 7 dont la sortie correspond à la bouche 6 de soufflage et dont l'entrée 25 est en regard de la paroi 26 du carter 7 qui est opposée à la face 15 extérieure de soufflage. Cette paroi 26 est munie de perforations 27 qui permettent le passage de l'air. Le pied 18 associé au carter 7 à cette paroi 26 est alors creux afin de permettre également le passage de l'air à travers les perforations 27 jusque dans la chambre 14 de turbulences.According to the invention, the device further comprises means 14 for creating turbulence in the current of air. Thus, the fan 13 is inserted into a turbulence chamber 14 rigidly associated with the casing 7, the outlet of which corresponds to the blowing mouth 6 and the inlet 25 of which faces the wall 26 of the casing 7 which is opposite the face. 15 external blowing. This wall 26 is provided with perforations 27 which allow the passage of air. The foot 18 associated with the casing 7 with this wall 26 is then hollow so as to also allow the passage of air through the perforations 27 into the chamber 14 of turbulence.

Comme on le voit sur la figure 2, le ventilateur 13 est un ventilateur axial dont l'axe 47 est orienté au moins sensiblement dans la même direction que la face 15 extérieure de soufflage et que la bouche 6 de soufflage. De plus, la chambre 14 de turbulences est évasée entre son entrée 25 où elle a une section plus faible, et la paroi 24 du carter 7 décalée par rapport à la face 15 extérieure de soufflage où cette chambre 14 de turbulences a une section plus grande, la bouche 6 de soufflage étant disposée de côté par rapport à cette plus grande section. On crée ainsi un courant de turbulences important dans le courant d'air formé par le ventilateur 13. En effet, ce courant d'air est amené à ricocher contre la face interne 48 de la paroi 24 du carter 7 avant de sortir par la bouche 6 de soufflage. Selon l'invention, la section efficace c'est-à-dire la section perpendiculaire à la direction générale du courant d'air de l'entrée 25 de la chambre 14 de turbulences a une aire semblable à celle de la section efficace de la bouche 6 de soufflage.As can be seen in FIG. 2, the fan 13 is an axial fan whose axis 47 is oriented at least substantially in the same direction as the external blowing face 15 and that the blowing mouth 6. In addition, the chamber 14 of turbulence is flared between its inlet 25 where it has a smaller section, and the wall 24 of the casing 7 offset with respect to the external blowing face 15 where this chamber 14 of turbulence has a larger section , the blowing mouth 6 being disposed sideways with respect to this larger section. A large turbulence current is thus created in the air current formed by the fan 13. In fact, this air current is caused to ricochet against the internal face 48 of the wall 24 of the casing 7 before exiting through the mouth. 6 blowing. According to the invention, the cross section, that is to say the section perpendicular to the general direction of the air flow from the inlet 25 of the turbulence chamber 14 has an area similar to that of the cross section of the blow mouth 6.

Ces dispositions permettent de créer un courant d'air qui s'avère en pratique efficace dans toutes les situations et les positions du dispositif 1, de la plaque 16 de support et du déflecteur 8. En effet, le courant d'air en sortie de la bouche 6 de soufflage est parfaitement dirigé dans la bonne direction et incorpore des turbulences importantes qui engendrent le gonflage rapide du sac situé au-dessus de la pile 5. Il suffit d'introduire alors un objet 2 à l'intérieur du sac gonflé maintenu par la cheville 9 puis de déchirer la bande 31 pour détacher l'ensemble. Par ailleurs, les autres sacs de la pile sont maintenus et restent pliés.These provisions make it possible to create a current of air which proves effective in practice in all the situations and positions of the device 1, of the support plate 16 and of the deflector 8. In fact, the air current at the outlet the blowing mouth 6 is perfectly directed in the right direction and incorporates significant turbulence which generates rapid inflation of the bag located above the stack 5. It suffices to then introduce an object 2 inside the inflated bag held by the ankle 9 and then tear the band 31 to detach the assembly. In addition, the other bags in the stack are held and remain folded.

Outre le ventilateur 13 et sa chambre 14 de turbulences, le carter 7 renferme également des moyens d'alimentation électrique 49 et des fils 50 de connexion entre cette alimentation 49 électrique et le ventilateur 13. Une prise électrique 51 permet la connexion de l'alimentation 49 à travers la paroi latérale à un réseau électrique.In addition to the fan 13 and its turbulence chamber 14, the casing 7 also contains electrical supply means 49 and wires 50 for connection between this electrical supply 49 and the fan 13. An electrical outlet 51 allows connection of the supply 49 through the side wall to an electrical network.

Enfin, l'extrémité libre 40 de la plaque 16 de support est recourbée à l'opposé du carter 7 de façon à former un talon 52. Et cette extrémité libre 40 est de préférence constituée d'une pièce indépendante associée de façon réglable à la plaque de support 16 qui comporte une lumière longitudinale 53. Un ergot 54 est associé à l'extrémité libre 40 pour coulisser à l'intérieur, de la lumière 53 longitudinale, et l'extrémité libre 40 est associée par des vis 55 serrées par des papillons 56 qui permettent de bloquer cette extrémité libre 40 sur la plaque 16 de support. Egalement, la plaque 16 de support peut être associée de façon inamovible à la paroi 23 formant la face 15 extérieure de soufflage ou, de préférence comme représenté, de façon amovible grâce à des vis 57 et des papillons 58 de serrage.Finally, the free end 40 of the support plate 16 is curved opposite the casing 7 so as to form a heel 52. And this free end 40 is preferably made up of an independent part associated in an adjustable manner with the support plate 16 which has a longitudinal lumen 53. A lug 54 is associated with the free end 40 for sliding inside, of the longitudinal lumen 53, and the free end 40 is associated by screws 55 tightened by butterflies 56 which allow this free end 40 to be blocked on the support plate 16. Also, the support plate 16 can be associated in a non-removable manner with the wall 23 forming the external blowing face 15 or, preferably as shown, detachably by means of screws 57 and tightening butterflies 58.

Claims (25)

Dispositif pour faciliter l'emballage d'objets - notamment d'objets longs tels que des pains - dans des sacs (3) initialement pliés à plat comprenant une ouverture (30) et une bande (31) en saillie de l'ouverture (30) formant une seule épaisseur longitudinale, les sacs (3) étant empilés en une pile (5) en prolongement d'une bouche (6) de soufflage orientée pour former un courant d'air dans une direction au moins parallèle à et à la surface d'une face (15) extérieure de soufflage, le dispositif comprenant en outre un ventilateur (13), un déflecteur (8) d'air disposé à la sortie de la bouche (6) de soufflage et monté mobile de sorte que la déviation du courant d'air peut être modifiée - notamment en fonction de la hauteur de la pile (5) - pour que seul le sac (3) placé au-dessus reçoive le courant d'air, et des moyens (9) de maintien de la pile (5) de sacs, caractérisé en ce que les moyens (9) de maintien comprennent une cheville (9) associée au déflecteur (8) et s'étendant vers la face (15) extérieure de soufflage dans une perforation (32) de la bande (31) de chacun des sacs qui est constituée d'une matière susceptible de se déchirer - notamment en papier -.Device for facilitating the packaging of objects - in particular long objects such as breads - in bags (3) initially folded flat comprising an opening (30) and a strip (31) projecting from the opening (30 ) forming a single longitudinal thickness, the bags (3) being stacked in a stack (5) in extension of a blowing mouth (6) oriented to form a stream of air in a direction at least parallel to and to the surface an external blowing face (15), the device further comprising a fan (13), an air deflector (8) disposed at the outlet of the blowing mouth (6) and mounted so that the deflection the air flow can be modified - in particular depending on the height of the stack (5) - so that only the bag (3) placed above receives the air flow, and means (9) for maintaining the stack (5) of bags, characterized in that the holding means (9) comprise a pin (9) associated with the deflector (8) and s 'extending towards the outer face (15) of blowing in a perforation (32) of the strip (31) of each of the bags which is made of a material capable of tearing - in particular in paper -. Dispositif selon l'une quelconque des revendications 1 à 7, caractérisé en ce que la cheville (9) s'étend dans une direction au moins sensiblement perpendiculaire à la face (15) extérieure de soufflage.Device according to any one of Claims 1 to 7, characterized in that the plug (9) extends in a direction at least substantially perpendicular to the external blowing face (15). Dispositif selon l'une des revendications 1 et 2, caractérisé en ce que le déflecteur (8) comprend une portion amont (20) s'étendant à travers la face (15) extérieure de soufflage et en ce que cette face (15) extérieure de soufflage est pourvue d'une ouverture (42) ménagée immédiatement en aval de la bouche (6) de soufflage.Device according to one of claims 1 and 2, characterized in that the deflector (8) comprises an upstream portion (20) extending through the external face (15) of blowing and in that this external face (15) blowing device is provided with an opening (42) formed immediately downstream of the blowing mouth (6). Dispositif selon la revendication 3, caractérisé en ce que la portion amont (20) du déflecteur (8) est articulée à un bord (43) de l'ouverture (42) par une charnière (10) comprenant un ressort de rappel (11) qui tend à diminuer la déviation de l'air induite par le déflecteur (8).Device according to claim 3, characterized in that the upstream portion (20) of the deflector (8) is articulated to an edge (43) of the opening (42) by a hinge (10) comprising a return spring (11) which tends to reduce the air deflection induced by the deflector (8). Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le déflecteur (8) comprend une portion (21) aval prolongeant la portion amont (20) vers la pile (5) de sacs.Device according to any one of claims 1 to 4, characterized in that the deflector (8) comprises a downstream portion (21) extending the upstream portion (20) towards the stack (5) of bags. Dispositif selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la cheville (9) est associée rigidement au déflecteur (8) par une de ses extrémités, l'autre (45) extrémité qui est libre pénétrant dans les perforations (32) des sacs et étant tournée vers la face (15) extérieure de soufflage.Device according to any one of Claims 1 to 5, characterized in that the dowel (9) is rigidly associated with the deflector (8) by one of its ends, the other (45) end which is free penetrating into the perforations ( 32) of the bags and being turned towards the external blowing face (15). Dispositif selon la revendication 6, caractérisé en ce que la cheville (9) est associée au bord externe libre (41) de la portion aval (21) du déflecteur (8) et s'étend vers la face (15) extérieure de soufflage à partir de ce bord (41).Device according to Claim 6, characterized in that the pin (9) is associated with the free external edge (41) of the downstream portion (21) of the deflector (8) and extends towards the external face (15) of blowing at from this edge (41). Dispositif selon l'une quelconque des revendications 1 à 7, caractérisé en ce que la cheville (9) est évasée, son extrémité libre (45) étant de moindre largeur que son extrémité (44) d'association au déflecteur (8).Device according to any one of claims 1 to 7, characterized in that the dowel (9) is flared, its free end (45) being narrower than its end (44) associated with the deflector (8). Dispositif selon la revendication 8, caractérisé en ce que la cheville (9) est globalement triangulaire et pointue.Device according to claim 8, characterized in that the plug (9) is generally triangular and pointed. Dispositif selon l'une quelconque des revendications 7 à 9, caractérisé en ce que la face (15) extérieure de soufflage est pourvue d'une lumière (12) en regard de la cheville (9).Device according to any one of Claims 7 to 9, characterized in that the external blowing face (15) is provided with a lumen (12) facing the plug (9). Dispositif selon la revendication 10, caractérisé en ce que la lumière (12) est oblongue et les perforations (32) des sacs sont circulaires, la largeur de lumière (12) étant plus faible que le diamètre des perforations (32).Device according to claim 10, characterized in that the lumen (12) is oblong and the perforations (32) of the bags are circular, the width of lumen (12) being smaller than the diameter of the perforations (32). Dispositif selon l'une des revendications 1 à 11, caractérisé en ce qu'il comprend un carter (7) fermé contenant le ventilateur (13) associé rigidement au carter (7) et une plaque (16) de support de la pile (5) associée rigidement au carter (7) en prolongement de la bouche (6) de soufflage dans la direction du courant d'air.Device according to one of claims 1 to 11, characterized in that it comprises a closed casing (7) containing the fan (13) rigidly associated with the casing (7) and a plate (16) for supporting the battery (5 ) rigidly associated with the casing (7) in extension of the blowing mouth (6) in the direction of the air flow. Dispositif selon la revendication 12, caractérisé en ce que le carter (7) a une forme et des dimensions telles qu'il peut reposer directement ou par l'intermédiaire d'un ou plusieurs pieds (17, 18) sur une surface horizontale selon au moins deux positions correspondant à au moins deux orientations de la plaque (16) de support - notamment une orientation au moins sensiblement horizontale et une orientation au moins sensiblement verticale -.Device according to claim 12, characterized in that the casing (7) has a shape and dimensions such that it can rest directly or by means of one or more feet (17, 18) on a horizontal surface according to the at least two positions corresponding to at least two orientations of the support plate (16) - in particular an orientation at least substantially horizontal and an orientation at least substantially vertical -. Dispositif selon la revendication 13, caractérisé en ce que le carter (7) comporte une face plane et/ou des pieds (17, 18) opposés à la face (15) extérieure de soufflage permettant de coucher le dispositif avec la plaque (16) de support au moins sensiblement horizontale.Device according to Claim 13, characterized in that the casing (7) has a flat face and / or feet (17, 18) opposite the external blowing face (15) enabling the device to be laid down with the plate (16) at least substantially horizontal support. Dispositif selon l'une quelconque des revendications 12 à 14, caractérisé en ce que la plaque (16) de support prolonge la face (15) extérieure de soufflage au-delà de son bord extrême libre (39) qui forme une arête de jonction avec une autre face (19) plane du carter (7), cette autre face (19) formant un angle avec la plaque (16) de support de telle sorte que lorsque cette autre face (19) repose sur une surface horizontale, la plaque (16) de support est au moins sensiblement verticale.Device according to any one of Claims 12 to 14, characterized in that the support plate (16) extends the external blowing face (15) beyond its free end edge (39) which forms a junction edge with another flat face (19) of the casing (7), this other face (19) forming an angle with the support plate (16) so that when this other face (19) rests on a horizontal surface, the plate ( 16) of support is at least substantially vertical. Dispositif selon l'une quelconque des revendications 12 à 15, caractérisé en ce que la plaque (16) de support a son extrémité libre (40) munie d'un pied (17) s'étendant du côté du carter (7).Device according to any one of claims 12 to 15, characterized in that the support plate (16) has its free end (40) provided with a foot (17) extending on the side of the casing (7). Dispositif selon l'une quelconque des revendications 13 à 16, caractérisé en ce que la largeur du carter (7) perpendiculairement à la face (15) extérieure de soufflage est plus grande du côté de la plaque (15) de support qu'à l'extrémité opposée (37) et en ce qu'il comporte un pied (18) s'étendant à partir de et au moins sensiblement perpendiculairement à la face (38) opposée à la face (15) extérieure de soufflage et du côté opposé à la plaque (16) de support.Device according to any one of Claims 13 to 16, characterized in that the width of the casing (7) perpendicular to the external blowing face (15) is greater on the side of the support plate (15) than on the opposite end (37) and in that it comprises a foot (18) extending from and at least substantially perpendicular to the face (38) opposite the external face (15) of blowing and on the side opposite the support plate (16). Dispositif selon l'une quelconque des revendications 13 à 17, caractérisé en ce que le carter (7) est polyédrique - notamment en forme de prisme droit dont les bases forment les parois latérales verticales du carter -.Device according to any one of Claims 13 to 17, characterized in that the casing (7) is polyhedral - in particular in the form of a straight prism whose bases form the vertical lateral walls of the casing -. Dispositif selon l'une quelconque des revendications 1 à 18, caractérisé en ce que la bouche (6) de soufflage est ménagée dans une contremarche (22) reliant deux parois (23, 24) parallèles et décalées du carter (7) dont l'une (23) forme la face (15) extérieure de soufflage.Device according to any one of Claims 1 to 18, characterized in that the blowing mouth (6) is formed in a riser (22) connecting two parallel (offset) walls (23, 24) of the casing (7), the one (23) forms the external blowing face (15). Dispositif selon l'une quelconque des revendications 13 à 19, caractérisé en ce que le ventilateur (13) est inséré dans une chambre de turbulences (14) associée rigidement au carter (7) dont la sortie correspond à la bouche (6) de soufflage et dont l'entrée (25) est en regard d'une paroi (26) du carter (7) qui est opposée à la face (15) extérieure de soufflage, cette paroi (26) étant munie de perforations (27).Device according to any one of claims 13 to 19, characterized in that the fan (13) is inserted in a turbulence chamber (14) rigidly associated with the casing (7) whose outlet corresponds to the blowing mouth (6) and the inlet (25) of which faces a wall (26) of the casing (7) which is opposite to the external blowing face (15), this wall (26) being provided with perforations (27). Dispositif selon la revendication 20, caractérisé en ce que la chambre (14) de turbulences en évasée entre son entrée (25) où elle a une section plus faible et la paroi (24) du carter (7) décalée par rapport à la face (15) extérieure de soufflage où elle a une section plus grande, la bouche (6) de soufflage étant disposée de côté par rapport à cette plus grande section.Device according to claim 20, characterized in that the chamber (14) of swirling flares between its inlet (25) where it has a smaller section and the wall (24) of the casing (7) offset with respect to the external blowing face (15) where it has a larger section, the blowing mouth (6) being disposed sideways with respect to this larger section. Dispositif selon l'une quelconque des revendications 20 et 21, caractérisé en ce que la section efficace de l'entrée (25) de la chambre (14) de turbulences a une aire semblable à celle de la section efficace de la bouche (6) de soufflage.Device according to either of Claims 20 and 21, characterized in that the cross section of the inlet (25) of the turbulence chamber (14) has an area similar to that of the cross section of the mouth (6) blowing. Sac d'emballage d'objets - notamment d'objets longs tels que des pains - utilisable dans un dispositif selon l'une quelconque des revendications 1 à 22, comprenant une ouverture (30) et une bande (31) en saillie de l'ouverture (30) formant, lorsque le sac est plié à plat, une seule épaisseur longitudinale, caractérisé en ce que la bande (31) comporte une perforation (32) et en ce que la bande (31) au moins est constituée d'une matière susceptible de se déchirer - notamment en papier -.Bag for packaging objects - in particular long objects such as breads - usable in a device according to any one of claims 1 to 22, comprising an opening (30) and a strip (31) projecting from the opening (30) forming, when the bag is folded flat, a single longitudinal thickness, characterized in that the strip (31) has a perforation (32) and in that the strip (31) at least consists of a material likely to tear - especially paper -. Sac selon la revendication 23, caractérisé en ce que la perforation (32) est circulaire.Bag according to claim 23, characterized in that the perforation (32) is circular. Sac selon l'une des revendications 23 et 24 caractérisé en ce que la perforation (32) des sacs est au moins sensiblement centrée par rapport à la bande (31).Bag according to one of claims 23 and 24 characterized in that the perforation (32) of the bags is at least substantially centered relative to the strip (31).
EP19930400363 1992-02-13 1993-02-12 Apparatus for packaging articles, e.g. bread, in bags Expired - Lifetime EP0556130B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9201630A FR2687366B1 (en) 1992-02-13 1992-02-13 DEVICE FOR PACKAGING OBJECTS SUCH AS BREADS IN BAGS.
FR9201630 1992-02-13

Publications (2)

Publication Number Publication Date
EP0556130A1 true EP0556130A1 (en) 1993-08-18
EP0556130B1 EP0556130B1 (en) 1996-06-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930400363 Expired - Lifetime EP0556130B1 (en) 1992-02-13 1993-02-12 Apparatus for packaging articles, e.g. bread, in bags

Country Status (3)

Country Link
EP (1) EP0556130B1 (en)
DE (1) DE69302922D1 (en)
FR (1) FR2687366B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2727382A1 (en) * 1994-11-30 1996-05-31 Martinez Thierry Wrapping machine for bakery products esp. for long loaves
FR2837181A1 (en) * 2002-03-12 2003-09-19 Jean Louis Radenen Bag, especially for bread, is made at least partly from polypropylene and welded with others in packs at same time as suspension hole is made
US6823654B2 (en) * 1999-10-27 2004-11-30 Gates Automation, Inc. Bag filling and sealing machine and method for handling bags

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2824531B1 (en) * 2001-05-14 2003-11-21 C R S Emballages DEVICE FOR PACKAGING LONG OBJECTS SUCH AS BREADS

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3044233A (en) * 1961-10-09 1962-07-17 Fabricon Products Handling of flexible plastic bags
GB1140653A (en) * 1966-05-13 1969-01-22 Optima Maschinenfabrik Otto Bu A machine for packaging articles such as loaves of bread
US3678652A (en) * 1970-12-28 1972-07-25 Dura Pak Inc Bag opening apparatus
US3715857A (en) * 1971-09-08 1973-02-13 Abels Bagels Inc Bagel bagging machine
US3727374A (en) * 1971-11-10 1973-04-17 D Williams Bag filling device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3044233A (en) * 1961-10-09 1962-07-17 Fabricon Products Handling of flexible plastic bags
GB1140653A (en) * 1966-05-13 1969-01-22 Optima Maschinenfabrik Otto Bu A machine for packaging articles such as loaves of bread
US3678652A (en) * 1970-12-28 1972-07-25 Dura Pak Inc Bag opening apparatus
US3715857A (en) * 1971-09-08 1973-02-13 Abels Bagels Inc Bagel bagging machine
US3727374A (en) * 1971-11-10 1973-04-17 D Williams Bag filling device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2727382A1 (en) * 1994-11-30 1996-05-31 Martinez Thierry Wrapping machine for bakery products esp. for long loaves
US6823654B2 (en) * 1999-10-27 2004-11-30 Gates Automation, Inc. Bag filling and sealing machine and method for handling bags
US6886308B2 (en) * 1999-10-27 2005-05-03 Gates Automation, Inc. Bag holder for bag handling machine
FR2837181A1 (en) * 2002-03-12 2003-09-19 Jean Louis Radenen Bag, especially for bread, is made at least partly from polypropylene and welded with others in packs at same time as suspension hole is made

Also Published As

Publication number Publication date
DE69302922D1 (en) 1996-07-11
FR2687366B1 (en) 1995-03-24
FR2687366A1 (en) 1993-08-20
EP0556130B1 (en) 1996-06-05

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