EP0468865A1 - Method for the automatic packaging of products in flexible bags and machine for executing the method - Google Patents
Method for the automatic packaging of products in flexible bags and machine for executing the method Download PDFInfo
- Publication number
- EP0468865A1 EP0468865A1 EP91402016A EP91402016A EP0468865A1 EP 0468865 A1 EP0468865 A1 EP 0468865A1 EP 91402016 A EP91402016 A EP 91402016A EP 91402016 A EP91402016 A EP 91402016A EP 0468865 A1 EP0468865 A1 EP 0468865A1
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- EP
- European Patent Office
- Prior art keywords
- bags
- station
- link
- machine
- flexible
- 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
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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
- B65B43/12—Feeding flexible bags or carton blanks in flat or collapsed state; Feeding flat bags connected to form a series or chain
- B65B43/123—Feeding flat bags connected to form a series or chain
Definitions
- the present invention essentially relates to a process for the automatic packaging of any products, such as for example foodstuffs, in flexible bags.
- the present invention aims to solve the above problems by proposing an automatic method and machine for packaging products in bags, which allow automatic and perfect positioning of the bags, in particular at the heat sealing station, as well as '' easy and automatic recovery of cut bag falls.
- the subject of the invention is a process for automatic packaging of any products, such as for example foodstuffs, in flexible bags joined together by at least one flexible link which extends in the vicinity of and substantially parallel to the opening of the bags, this process essentially consisting in passing the bags successively to a filling station and to a sealed bag closure station, and being characterized in that the flexible link is used to pull the bags during their passage to the closing station so as to make the edges of the opening of the bags substantially parallel to facilitate their closing by welding, stapling or the like after having optionally carried out the vacuum therein.
- This process is further characterized in that after the bags have been closed, a cut is made between the welded or stapled part of the bags and the remaining part of these bags comprising the aforementioned link, and the remaining parts of the bags joined by the link are recovered by winding or other recovery process.
- the present invention also relates to a machine for implementing the method meeting the above characteristics, this machine being of the type comprising in particular a bag filling station, and a sealed sealing station by welding or the like for filled bags, after possible vacuum and / or controlled atmosphere thereof, and being characterized in that it comprises means for tensioning the link connecting the bags, arranged upstream and / or downstream of said sealed closure station.
- tensioning means can be constituted for example by one or more rollers, by one or more tensioning arms, or by other equivalent means.
- Figure 1 is a very schematic view in elevation of an automatic packaging machine for flexible bags according to this invention.
- FIG. 2 is a schematic plan view from above of the machine shown in FIG. 1.
- a machine according to this invention allows the packaging of plastic bags S in particular, these bags all being joined by a flexible link 1 such as a band fixed by any suitable means in the vicinity of the opening O of the bags and substantially parallel to this opening, as can be seen in FIG. 2.
- a station for filling these bags has been shown at R and at 2 a station for sealing the bags after they have been filled .
- This closing station 2 essentially comprises an enclosure 3 which is generally connected to a vacuum source (not shown) and which contains heated elements or bars 4, in a variable number, actuated vertically by any appropriate means (not shown), and between which the S bags must pass after filling in order to be heat sealed.
- a knife is provided schematically identified at 5, and beyond this knife is provided a drum 6 allowing the recovery of the cut bag falls, as will be explained in detail further on how it works.
- a drum 6 any other recovery system, such as a suction system for example, could be used without departing from the scope of the invention.
- a means of transport such as for example a conveyor 7 ensuring the evacuation of the bags S filled and heat-sealed and having to undergo for example a shrinking with heat.
- Means such as for example rollers 8, or equivalent means, are provided at the inlet and / or at the outlet of the enclosure 3 to exert tension on the link or ribbon 1 connecting the bags S in order to ensure the perfect parallel superimposition of the edges of the opening O of the bags when these are between the elements 4 of the press ensuring the heat sealing.
- the bags connected to each other may be in the form of a roller supplying the loading station R.
- the bags S are not tensioned by the ribbon or link 1 so as to allow the bags to open and consequently the loading of products to be packaged, as shown by the arrows F in FIG. 2.
- line or lines of bags S can rest on, for example, an endless belt or belt conveyor (not shown).
- the bags S are transferred to the vacuum enclosure 2. But it is important to observe here that traction is exerted on the link or ribbon 1 so as to make the edges of the opening O of the bags S to facilitate their watertight closing by welding of said edges which will be flattened and parallel due to the traction carried out on the link 1 by the rollers 8 or any other suitable means.
- the knife 5 cuts between the welding line 10 and the link or ribbon 1, while at the outlet of the enclosure 3, the scraps 12 cut by the knife 5 and all connected by the ribbon 1 are automatically wrapped around the drum 6.
- the bags S filled with a product P under vacuum they are conveyed, as seen in 13, by the conveyor 7 to for example a station ensuring the heat shrinkage of the bags to finally give a product illustrated schematically in 14 in figure 2.
- An automatic packaging method and machine have therefore been produced according to the invention which, thanks to the link connecting the bags, allows correct and automatic positioning of these bags during various packaging operations, and which makes it possible to eliminate manual interventions and guarantee a tight and clean closure of the bags to finally give the packaged products a beautiful appearance.
- the means of tensioning the link connecting the bags and providing the flattening of their opening can be other than rollers and, in the case of rollers, can be driven, for example at different speeds, to the using any training source.
- the material of the link or ribbon and its attachment to the bags can be any.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supplying Of Containers To The Packaging Station (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
- Containers And Plastic Fillers For Packaging (AREA)
Abstract
Description
La présente invention a essentiellement pour objet un procédé de conditionnement automatique de produits quelconques, tels que par exemple des denrées alimentaires, dans des sacs souples.The present invention essentially relates to a process for the automatic packaging of any products, such as for example foodstuffs, in flexible bags.
Elle vise également une machine permettant l'exécution de ce procédé.It also relates to a machine allowing the execution of this process.
On a déjà proposé des procédés et des machines réalisant successivement le transport, l'ouverture, le remplissage et la fermeture étanche de sacs en matière plastique destinés à contenir des denrées alimentaires quelconques et devant être présentées à la vente par exemple.Methods and machines have already been proposed successively carrying out the transport, opening, filling and sealing of plastic bags intended to contain any foodstuffs and having to be presented for sale for example.
Il est également connu d'utiliser dans ces procédés et ces machines des sacs qui sont initialement reliés les uns aux autres par un lien ou ruban flexible s'étendant par exemple non loin de et sensiblement parallèlement à l'ouverture desdits sacs.It is also known to use in these methods and these machines bags which are initially connected to each other by a flexible link or ribbon extending for example not far from and substantially parallel to the opening of said bags.
Toutefois, il y a souvent des problèmes au niveau du poste de fermeture des sacs, lequel poste est généralement constitué par une enceinte permettant de faire le vide dans les sacs et contenant une presse à deux éléments chauffés entre lesquels doivent passer les sacs. En effet, à ce niveau, les bords de l'ouverture de chaque sac doivent être parfaitement superposés et parallèles avant de réaliser le thermoscellage, et cela nécessite bien souvent une intervention manuelle qui prend évidemment du temps.However, there are often problems at the bag closing station, which station is generally constituted by an enclosure making it possible to empty the bags and containing a press with two heated elements between which the bags must pass. Indeed, at this level, the edges of the opening of each bag must be perfectly superimposed and parallel before carrying out the heat sealing, and this very often requires manual intervention which obviously takes time.
En outre, les sacs découpés après le thermoscellage engendrent des chutes de matière qui sont difficiles à contrôler et à récupérer.In addition, the bags cut after heat sealing cause material to fall which is difficult to control and recover.
Aussi, la présente invention a pour but de résoudre les problèmes ci-dessus en proposant un procédé et une machine automatique de conditionnement de produits dans des sacs, qui permettent un positionnement automatique et parfait des sacs notamment au niveau du poste de thermoscellage, ainsi qu'une récupération aisée et automatique des chutes de sacs découpées.Also, the present invention aims to solve the above problems by proposing an automatic method and machine for packaging products in bags, which allow automatic and perfect positioning of the bags, in particular at the heat sealing station, as well as '' easy and automatic recovery of cut bag falls.
A cet effet, l'invention a pour objet un procédé de conditionnement automatique de produits quelconques, tels que par exemple des denrées alimentaires, dans des sacs souples réunis par au moins un lien flexible qui s'étend au voisinage de et sensiblement parallèlement à l'ouverture des sacs, ce procédé consistant essentiellement à faire passer les sacs successivement à un poste de remplissage et à un poste de fermeture étanche des sacs, et étant caractérisé en ce qu'on effectue grâce au lien flexible une traction sur les sacs lors de leur passage au poste de fermeture de façon à rendre sensiblement parallèles les bords de l'ouverture des sacs pour faciliter leur fermeture par soudage, agrafage ou analogue après y avoir éventuellement effectué le vide.To this end, the subject of the invention is a process for automatic packaging of any products, such as for example foodstuffs, in flexible bags joined together by at least one flexible link which extends in the vicinity of and substantially parallel to the opening of the bags, this process essentially consisting in passing the bags successively to a filling station and to a sealed bag closure station, and being characterized in that the flexible link is used to pull the bags during their passage to the closing station so as to make the edges of the opening of the bags substantially parallel to facilitate their closing by welding, stapling or the like after having optionally carried out the vacuum therein.
Ce procédé est encore caractérisé en ce qu'après la fermeture des sacs, on pratique une découpe entre la partie soudée ou agrafée des sacs et la partie restante de ces sacs comportant le lien précité, et on récupère par enroulement ou autre processus de récupération les parties restantes des sacs réunies par le lien.This process is further characterized in that after the bags have been closed, a cut is made between the welded or stapled part of the bags and the remaining part of these bags comprising the aforementioned link, and the remaining parts of the bags joined by the link are recovered by winding or other recovery process.
La présente invention concerne encore une machine pour la mise en oeuvre du procédé répondant aux caractéristiques ci-dessus, cette machine étant du type comprenant notamment un poste de remplissage de sacs, et un poste de fermeture étanche par soudage ou analogue des sacs remplis, après mise éventuelle sous vide et/ou sous atmosphère contrôlée de ceux-ci, et étant caractérisée en ce qu'elle comprend des moyens de tension du lien reliant les sacs, disposés en amont et/ou en aval dudit poste de fermeture étanche.The present invention also relates to a machine for implementing the method meeting the above characteristics, this machine being of the type comprising in particular a bag filling station, and a sealed sealing station by welding or the like for filled bags, after possible vacuum and / or controlled atmosphere thereof, and being characterized in that it comprises means for tensioning the link connecting the bags, arranged upstream and / or downstream of said sealed closure station.
Ces moyens de tension peuvent être constitués par exemple par un ou plusieurs galets, par un ou plusieurs bras de tension, ou par d'autres moyens équivalents.These tensioning means can be constituted for example by one or more rollers, by one or more tensioning arms, or by other equivalent means.
Selon encore une autre caractéristique de cette machine, il est prévu en aval du poste de fermeture un tambour assurant l'enroulement des chutes de sacs découpées et réunies par le lien précité.According to yet another characteristic of this machine, there is provided downstream of the closure station a drum ensuring the winding of the cut bag scraps and joined by the aforementioned link.
Mais d'autres caractéristiques et avantages de l'invention apparaîtront mieux dans la description détaillée qui suit et se réfère aux dessins annexés, donnés uniquement à titre d'exemple, et dans lesquels.However, other characteristics and advantages of the invention will appear better in the detailed description which follows and refers to the appended drawings, given solely by way of example, and in which.
La figure 1 est une vue très schématique et en élévation d'une machine de conditionnement automatique de sacs souples selon cette invention.Figure 1 is a very schematic view in elevation of an automatic packaging machine for flexible bags according to this invention.
La figure 2 est une vue schématique et en plan de dessus de la machine montrée sur la figure 1.FIG. 2 is a schematic plan view from above of the machine shown in FIG. 1.
Suivant l'exemple de réalisation représenté, une machine conforme à cette invention permet le conditionnement de sacs S en matière plastique notamment, ces sacs étant tous réunis par un lien souple 1 tel qu'une bande fixée par tout moyen approprié au voisinage de l'ouverture O des sacs et sensiblement parallèlement à cette ouverture, comme on le voit bien sur la figure 2. On a montré en R un poste de remplissage de ces sacs et en 2 un poste de fermeture étanche des sacs après qu'ils aient été remplis.According to the embodiment shown, a machine according to this invention allows the packaging of plastic bags S in particular, these bags all being joined by a flexible link 1 such as a band fixed by any suitable means in the vicinity of the opening O of the bags and substantially parallel to this opening, as can be seen in FIG. 2. A station for filling these bags has been shown at R and at 2 a station for sealing the bags after they have been filled .
Ce poste de fermeture 2 comprend essentiellement une enceinte 3 qui est généralement reliée à une source de vide (non représentée) et qui contient des éléments ou barres chauffées 4, en un nombre variable, actionnables verticalement par tout moyen approprié (non représenté), et entre lesquelles doivent passer les sacs S après remplissage pour pouvoir être thermoscellés.This closing station 2 essentially comprises an enclosure 3 which is generally connected to a vacuum source (not shown) and which contains heated elements or bars 4, in a variable number, actuated vertically by any appropriate means (not shown), and between which the S bags must pass after filling in order to be heat sealed.
A la sortie de l'enceinte 3 ou dans cette enceinte, est prévu un couteau repéré schématiquement en 5, et au-delà de ce couteau est prévu un tambour 6 permettant la récupération des chutes de sacs découpées, comme on l'expliquera en détail plus loin à propos du fonctionnement. A la place du tambour 6, on pourrait utiliser tout autre système de récupération, tel qu'un système d'aspiration par exemple, sans sortir du cadre de l'invention.At the exit from the enclosure 3 or in this enclosure, a knife is provided schematically identified at 5, and beyond this knife is provided a drum 6 allowing the recovery of the cut bag falls, as will be explained in detail further on how it works. Instead of the drum 6, any other recovery system, such as a suction system for example, could be used without departing from the scope of the invention.
Egalement, à la sortie de l'enceinte 3 est prévu un moyen de transport, tel que par exemple un convoyeur 7 assurant l'évacuation des sacs S remplis et thermoscellés et devant subir par exemple un rétrécissement à la chaleur.Also, at the outlet of the enclosure 3 is provided a means of transport, such as for example a conveyor 7 ensuring the evacuation of the bags S filled and heat-sealed and having to undergo for example a shrinking with heat.
Des moyens, tels que par exemple des galets 8, ou des moyens équivalents, sont prévus à l'entrée et/ou à la sortie de l'enceinte 3 pour exercer une tension sur le lien ou ruban 1 reliant les sacs S afin d'assurer la superposition parallèle parfaite des bords de l'ouverture O des sacs lorsque ceux-ci se trouvent entre les éléments 4 de la presse assurant le thermoscellage.Means, such as for example rollers 8, or equivalent means, are provided at the inlet and / or at the outlet of the enclosure 3 to exert tension on the link or ribbon 1 connecting the bags S in order to ensure the perfect parallel superimposition of the edges of the opening O of the bags when these are between the elements 4 of the press ensuring the heat sealing.
Mais, pour une compréhension de l'invention, on expliquera ci-après le fonctionnement de la machine qui vient d'être décrite.However, for an understanding of the invention, the operation of the machine which has just been described will be explained below.
On observera tout d'abord que les sacs S demeureront constamment reliés par le ruban 1 jusqu'à la sortie du poste de thermoscellage 2.First of all, it will be observed that the bags S will remain constantly connected by the tape 1 until the exit from the heat-sealing station 2.
Initialement, et comme on le voit en T sur la figure 1, les sacs reliés les uns aux autres peuvent se présenter sous la forme d'un rouleau alimentant le poste de chargement R.Initially, and as seen in T in Figure 1, the bags connected to each other may be in the form of a roller supplying the loading station R.
Ici, les sacs S ne sont pas mis sous tension par le ruban ou lien 1 de façon à permettre l'ouverture des sacs et par conséquent le chargement en produits à conditionner, comme matérialisé par les flèches F sur la figure 2.Here, the bags S are not tensioned by the ribbon or link 1 so as to allow the bags to open and consequently the loading of products to be packaged, as shown by the arrows F in FIG. 2.
On observera ici que la ou les lignes de sacs S peuvent reposer sur par exemple un convoyeur à bande ou courroie sans fin (non représenté).It will be observed here that the line or lines of bags S can rest on, for example, an endless belt or belt conveyor (not shown).
Après chargement, les sacs S sont transférés à l'enceinte sous vide 2. Mais il est important d'observer ici qu'une traction est exercée sur le lien ou ruban 1 de façon à rendre sensiblement parallèles les bords de l'ouverture O des sacs S pour faciliter leur fermeture étanche par soudage desdits bords qui seront aplatis et parallèles en raison de la traction effectuée sur le lien 1 par les galets 8 ou tout autre moyen approprié.After loading, the bags S are transferred to the vacuum enclosure 2. But it is important to observe here that traction is exerted on the link or ribbon 1 so as to make the edges of the opening O of the bags S to facilitate their watertight closing by welding of said edges which will be flattened and parallel due to the traction carried out on the link 1 by the rollers 8 or any other suitable means.
On a montré schématiquement en 9 les bords parfaitement aplatis et parallèles de l'ouverture O des sacs S avant thermoscellage, et on a montré en 10 sur la figure 2 la ligne de soudage réalisée sur les sacs S précédemment remplis, cette ligne de soudage étant légèrement en retrait du ruban 1 maintenant la liaison entre les sacs S.The perfectly flat and parallel edges of the opening O of the bags S before heat sealing have been shown schematically at 9, and the welding line produced on the bags S previously filled has been shown at 10 in FIG. 2, this welding line being slightly set back from the ribbon 1 maintaining the connection between the bags S.
Après la fermeture étanche et sous vide des sacs S, le couteau 5 réalise une découpe entre la ligne de soudage 10 et le lien ou ruban 1, tandis qu'à la sortie de l'enceinte 3, les chutes 12 découpées par le couteau 5 et toutes reliées par le ruban 1 sont automatiquement enroulées autour du tambour 6.After the bags S are sealed and vacuum sealed, the
Quant aux sacs S remplis sous vide d'un produit P, ils sont acheminés, comme on le voit en 13, par le convoyeur 7 vers par exemple un poste assurant le rétrécissement à la chaleur des sacs pour finalement donner un produit illustré schématiquement en 14 sur la figure 2.As for the bags S filled with a product P under vacuum, they are conveyed, as seen in 13, by the conveyor 7 to for example a station ensuring the heat shrinkage of the bags to finally give a product illustrated schematically in 14 in figure 2.
On a donc réalisé suivant l'invention un procédé et une machine de conditionnement automatique permettant grâce au lien reliant les sacs d'obtenir un positionnement correct et automatique de ces sacs lors des diverses opérations de conditionnement, et permettant de supprimer les interventions manuelles et de garantir une fermeture étanche et propre des sacs pour finalement conférer aux produits conditionnés un bel aspect de présentation.An automatic packaging method and machine have therefore been produced according to the invention which, thanks to the link connecting the bags, allows correct and automatic positioning of these bags during various packaging operations, and which makes it possible to eliminate manual interventions and guarantee a tight and clean closure of the bags to finally give the packaged products a beautiful appearance.
Bien entendu, l'invention n'est nullement limitée au mode de réalisation décrit et illustré qui n'a été donné qu'à titre d'exemple.Of course, the invention is in no way limited to the embodiment described and illustrated, which has been given only by way of example.
C'est ainsi que les moyens de tension du lien reliant les sacs et procurant l'aplatissement de leur ouverture peuvent être autres que des galets et, dans le cas de galets, peuvent être entraînés, par exemple à des vitesses différentes, à l'aide d'une source d'entrainement quelconque. De même, la matière du lien ou ruban et sa fixation sur les sacs peuvent être quelconques.Thus the means of tensioning the link connecting the bags and providing the flattening of their opening can be other than rollers and, in the case of rollers, can be driven, for example at different speeds, to the using any training source. Similarly, the material of the link or ribbon and its attachment to the bags can be any.
C'est dire que l'invention comprend tous les équivalents techniques des moyens décrits ainsi que leurs combinaisons, si celles-ci sont effectuées suivant son esprit.This means that the invention includes all the technical equivalents of the means described as well as their combinations, if these are carried out according to the spirit.
Claims (5)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9009571 | 1990-07-26 | ||
| FR9009571A FR2665136B1 (en) | 1990-07-26 | 1990-07-26 | PROCESS FOR THE AUTOMATIC PACKAGING OF ANY PRODUCTS IN FLEXIBLE BAGS AND A MACHINE FOR CARRYING OUT SAID PROCESS. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0468865A1 true EP0468865A1 (en) | 1992-01-29 |
| EP0468865B1 EP0468865B1 (en) | 1994-06-08 |
Family
ID=9399135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP91402016A Expired - Lifetime EP0468865B1 (en) | 1990-07-26 | 1991-07-18 | Method for the automatic packaging of products in flexible bags and machine for executing the method |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0468865B1 (en) |
| AT (1) | ATE106822T1 (en) |
| AU (1) | AU652166B2 (en) |
| DE (1) | DE69102361D1 (en) |
| FR (1) | FR2665136B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114148581A (en) * | 2021-12-21 | 2022-03-08 | 苏州策林智能科技有限公司 | Product packaging equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB681096A (en) * | 1948-07-13 | 1952-10-15 | Clarence Wedekind Vogt | Improvements in or relating to bag arrangements |
| US3751875A (en) * | 1971-09-09 | 1973-08-14 | H Membrino | Apparatus for filling, sealing and dispensing bags |
-
1990
- 1990-07-26 FR FR9009571A patent/FR2665136B1/en not_active Expired - Fee Related
-
1991
- 1991-07-18 DE DE69102361T patent/DE69102361D1/en not_active Expired - Lifetime
- 1991-07-18 EP EP91402016A patent/EP0468865B1/en not_active Expired - Lifetime
- 1991-07-18 AT AT91402016T patent/ATE106822T1/en not_active IP Right Cessation
- 1991-07-23 AU AU81287/91A patent/AU652166B2/en not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB681096A (en) * | 1948-07-13 | 1952-10-15 | Clarence Wedekind Vogt | Improvements in or relating to bag arrangements |
| US3751875A (en) * | 1971-09-09 | 1973-08-14 | H Membrino | Apparatus for filling, sealing and dispensing bags |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114148581A (en) * | 2021-12-21 | 2022-03-08 | 苏州策林智能科技有限公司 | Product packaging equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2665136A1 (en) | 1992-01-31 |
| AU652166B2 (en) | 1994-08-18 |
| EP0468865B1 (en) | 1994-06-08 |
| ATE106822T1 (en) | 1994-06-15 |
| AU8128791A (en) | 1992-01-30 |
| FR2665136B1 (en) | 1992-11-20 |
| DE69102361D1 (en) | 1994-07-14 |
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