EP1628892B1 - Partially oval spray can - Google Patents

Partially oval spray can Download PDF

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Publication number
EP1628892B1
EP1628892B1 EP03785911A EP03785911A EP1628892B1 EP 1628892 B1 EP1628892 B1 EP 1628892B1 EP 03785911 A EP03785911 A EP 03785911A EP 03785911 A EP03785911 A EP 03785911A EP 1628892 B1 EP1628892 B1 EP 1628892B1
Authority
EP
European Patent Office
Prior art keywords
spray
section
cross
area
shaping area
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.)
Expired - Lifetime
Application number
EP03785911A
Other languages
German (de)
French (fr)
Other versions
EP1628892A1 (en
Inventor
Alexander Christ
Guido Endert
Horst Wergen
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.)
Boehringer Ingelheim Microparts GmbH
Original Assignee
Boehringer Ingelheim Microparts GmbH
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Publication date
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Publication of EP1628892A1 publication Critical patent/EP1628892A1/en
Application granted granted Critical
Publication of EP1628892B1 publication Critical patent/EP1628892B1/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00Containers or packages with special means for dispensing contents
    • B65D83/14Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/38Details of the container body
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00Making hollow objects
    • B21D51/16Making hollow objects characterised by the use of the objects
    • B21D51/26Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
    • B21D51/2615Edge treatment of cans or tins
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00Making hollow objects
    • B21D51/16Making hollow objects characterised by the use of the objects
    • B21D51/26Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
    • B21D51/2646Of particular non cylindrical shape, e.g. conical, rectangular, polygonal, bulged

Definitions

  • the invention is directed to a spray can, which is ergonomically designed to ensure a secure hold of the can during spraying, according to the type specified in the preamble of claim 1 and to an apparatus for producing the spray can according to the type mentioned in the preamble of claim 11 and on a method for producing the spray can with said device according to the type mentioned in the preamble of claim 13.
  • Spray cans of this type are widely used for a variety of ingredients, such.
  • deodorants hair spray, shaving cream, paints or oils, etc.
  • the use of these spray cans is usually complicated by the fact that the fingers that comprise the cylindrical can body, not provide sufficient support of the can when pressing the spray button.
  • this problem be easily remedied by the known solutions used in PET beverage bottles.
  • additional recessed grips or depressions are mounted on the shell body of the bottle for a better grip.
  • the other requirements placed on a PET bottle are quite different from those relating to a spray can that is under high pressure and containing aggressive agents. These differences are clearly identifiable by the material chosen and the manufacturing process, so that new solutions have to be found for the spray can.
  • spray cans today are a commodity that can only be produced economically in large quantities. Therefore, there are specially designed production lines where an optimized manufacturing process takes place. This manufacturing process is optimized in terms of manufacturing technology so that hardly any Changes in the production of spray cans are possible without incurring additional costs. Now, if the shape of the known spray cans are modified, this usually means drastic effects on the entire manufacturing process, since either an additional manufacturing process must run on existing machines or additional or new machines are needed.
  • a spray can of the type mentioned which has a circumferential recessed grip in the can body, which is removed in about 3-4 cm from the can opening. Namely, it is prevented by this recessed grip that the spray can slides on holding the spray button by the holding fingers, but the entire attitude of the spray can in the hand is quite cumbersome and unnatural. The attitude of the can also complicates with increasing diameter of the can body. Also, the strong sales, resulting from the lower recessed grip and the higher wall of the can, a major disadvantage for the safety of the spray can, since the material of the spray can wall is greatly weakened in this area.
  • the known spray cans from the publication DE 299 10 184 U1 , are manufactured by the manufacturing process described below and optimized. First, so-called pellets or blanks are punched out of a metal sheet for the further process. These pellets or blanks are formed into a cylindrical hollow body by a deep drawing process. As a rule, the method of backward hollow pressing is used. After the production of the cylindrical hollow body, this is painted from the inside, so that the spray can chemically withstand the aggressive ingredients and propellants. Also, the cylindrical hollow body is printed or painted on the outside. For printing from the outside, it is important to have a rotationally symmetric object. Therefore, deformations can only be carried out after the printing of the cylindrical hollow body.
  • the applied lacquer layers also serve as lubricants for the subsequent deformation steps.
  • the upper edge of the cylindrical Hollow body cleanly separated, so as to ensure an exact shape for the can opening with the collar.
  • the upper can area is formed with the shoulder and with the can opening and the collar of the cylindrical hollow body.
  • FR 2 606 686 A1 including a manufacturing process for spray cans.
  • This process also produces spray can bodies which have a non-circular cross-section in the central region.
  • sharp-edged and angular profiles are incorporated into the can body, which lead to a material weakening of the wall thickness.
  • spray can bodies produced in this way, since they can not be loaded with a corresponding filling pressure without safety risk.
  • the attachment of printing instructions in the formed areas is hardly possible. Even if a printing of the can would be possible, the pressure indication can not be read by the user at the highly deformed, angular edge points.
  • JP 61-193730 A discloses a manufacturing process for making partially deformed spray cans.
  • in part strongly angular or edged deformations are introduced into the spray can body, which also constitute a safety risk. So z.
  • the lower can section to transition to the upper can section.
  • the invention is therefore an object of the one hand to develop a well-handled spray can mentioned in the preamble of claim 1 species that is ergonomically shaped and still represents no security disadvantage. This is inventively achieved by the measures indicated in the characterizing part of claim 1, the following special significance.
  • the spray can in contrast to the known spray cans of the prior art - in the upper doses section on an additional shaping area, which can extend over the entire shoulder region of the spray can.
  • the cross section of the spray can is designed differently to the almost circular cross section of the lower can section. That is, the different cross-sections over the longitudinal extent of the spray can usually have no circular cross section, as in the lower portion of the can on.
  • This shaping area runs seamlessly, as long as it extends over the shoulder area, into the standardized can opening. Consequently, in the case of the spray cans according to the invention which have a standardized can opening, standardized spray systems can also be used, even if they have no cylindrical body in the shaping area.
  • the spray can has a substantially constant wall thickness over the circumference of the cross-section and over its height (longitudinal extension), i. the wall thickness is constant in radial and axial extension. This ensures above all a high level of safety for filled spray cans that are under high pressure.
  • the object of the invention on the other hand, to show a device of the type mentioned, so that the production of the spray can be guaranteed without significant changes in a conventional but modified manufacturing process.
  • This is inventively achieved by the measures listed in the characterizing part of claim 11, which have the following special significance.
  • the matrices of the device that are used for molding the upper portion of the can, according to the invention are designed such that by their chosen contours in addition, the molding area of the spray can also be formed.
  • the molding area of the spray can are formed by the die, but also the additional shaping area.
  • the matrices in the different cross sections in the shaping area have circumferences of the contours; which are not circular in shape. The so geometrically changed contours of the matrices cause in the molding process of the upper portion of the can also the deformation of the molding area.
  • the invention is also based on the object to develop a modified method of the type already mentioned in order to produce the spray cans according to the invention economically in large quantities. This is done essentially by the modified method step in the characterizing part of claim 13.
  • the upper can portion with the shoulder region and with the can opening with collar and the additional shaping region by the device according to claim 11 or 12 is formed.
  • the manufacturing process for creating the upper can section with the shaping area represents the last manufacturing process in the production process of unfilled spray cans.
  • the spray can 10 is made of metal and has a lower and an upper can section 11, 13.
  • the lower can section 11 includes a bottom 12 and an almost cylindrically shaped can wall, so that the cross sections of the spray can 10 in the region of the lower can section 11 are designed circular. All cross sections in the region of the lower can portion 11 are circular with the same surface area.
  • the upper can portion 13 has a shoulder portion 14 and a can opening 15 with a collar 16 for an insertable spray system.
  • Previously known spray cans are also cylindrical in the upper can section 13, so that their cross sections in this area are circular. It is also regarded as circular when the circumference of the circular cross sections has small points or spikes, as in the case of a cross section in the region of the sinusoidal recessed grip from the known publication DE 299 10 184 U1 available.
  • the shoulder region 14 represents a transition region in which the larger cross-sectional area of the cylindrical can body tapers continuously to the smaller cross-sectional area of the can opening.
  • various shoulder regions 14 are known, which have a round shoulder, oblique shoulder or grooved shoulder.
  • a cross section in the known shoulder regions 14 is always circular.
  • a shaping region 17 is additionally contained in the upper can section 13, which can also extend over the shoulder region 14.
  • Cross-sections in the shaping region 17 of the spray can 10 are configured differently to the almost circular cross-sections of the lower can section 11.
  • a spray can 10 is shown, which has oval cross sections in the shaping area 17 of the spray can 10.
  • the V-shaped configuration of the spray can 10 can be seen. Through this upward widening shape of the spray can 10 an ergonomic handling of the spray can 10 is guaranteed. As a result, a sliding away of the spray can 10 is significantly reduced in their use, especially in the operation of the spray system with slippery fingers.
  • the lower socket portion 11 has a constant circular cross-section. In this area of the lower can section 11, the spray can 10 - in a production process to be described in more detail - comprises a clamping device 23.
  • the spray can 10 has a substantially constant wall thickness over the circumference of the cross section and over the height (longitudinal extent) of the spray can wall. That is, the wall thickness of the spray can 10 is substantially constant in radial and axial extent.
  • a high level of safety for the spray can 10 is achieved, in particular with a high filling pressure. This is of great importance, since the filling pressure due to external circumstances, such as
  • spray can 10 must withstand special requirements, e.g. the direct sunlight is delivered in the car.
  • the surface of the different cross-sections in the shaping area 17 is designed to be oval or elliptical.
  • This shape of the spray can 10 ensures ergonomic handling, at the same time maximum safety is achieved. It is advisable to dispense with particularly narrow radii in the circumference of the cross section in the forming area 17.
  • the area of the different cross-section in the shaping area 17 can also have any other shape and thus approximate a triangle or rectangle, the corners also being realized here by radii which are as large as possible. Due to the arbitrary shape design of the spray can 10, any other ergonomic handling of the can can be achieved with a simultaneous, pleasing appearance.
  • the spray can 10 has a standardized can opening 15 into which standardized spray systems can be used.
  • the can opening 15 is designed generally circular.
  • Collar 16 affected as it is also important for the standardized spray systems.
  • the filling pressure can be clearly above the stated values when the aerosol can 10 is exposed to strong heating.
  • the metal of the spray can 10 be made of tinplate or aluminum.
  • tinplate or aluminum Of course, here are also any alloys in the field of tinplate or aluminum covers.
  • the device 20 comprises one or more dies 24 for producing the upper can portion 13 with the shoulder region 14 and with the can opening 15 with the collar 16 of a cylindrical hollow body 25 with bottom 12, wherein the shape of the upper can portion 13 is determined by the contours 30 of the die 24.
  • This device 20 is used for pressing the spray can 10 from a cylindrical hollow body 25a with bottom 12.
  • the contours 30 of the die 24 are designed such that in addition also the different shaping area 17 of the spray can 10 can be formed by at different cross sections in the forming area 17 of a die 24, the perimeters 31 of the contours 30 are not circular.
  • the device 20 also directly the different shape region 17 in the upper doses section 13 is prepared.
  • this manufacturing process consists of individual manufacturing steps, wieie in the Fig. 6.1 and 6.2 are indicated.
  • a cylindrical hollow body 25a with bottom 12 is mounted in a clamping device 23 on the rotatable clamping plate 21 of the device 20.
  • the shape of the cylindrical hollow body 25a is converted to the shape of the cylindrical hollow body 25b.
  • the clamping plate 21 rotates in the direction of rotation 26 by a certain angle.
  • the device 20 also contains the rotatable clamping plate 21 with the clamping devices 23 and the displaceable stamp plate 22 with the receptacles for the matrices 24.
  • the contours 30 at different cross sections in the shaping area 17 of a die 24 of equal length circumferences 31b are achieved.
  • a first die 24a is shown mounted on the device 20, in particular a displaceable punch plate 22 is.
  • This die 24a is in the Fig. 1 shown as a longitudinal section through a front view, which clearly the contour 30a is visible.
  • This die 24a serves for the first forming step of the cylindrical hollow body 25a.
  • the contour 30a in the downwardly open aperture has an oval cross-section (s., Different diameter in the forming region 17). This cross-section tapers upwards and becomes circular for the can opening 15.
  • a second die is shown which is used for the second manufacturing step of the cylindrical hollow body 25b.
  • the collar 16 is partially formed by this die 24b of the can opening 15.
  • This circumference 31b of the contour 30b is configured in an oval shape.
  • the matrices 24a, 24b shown are only exemplary embodiments and thus not necessarily in the illustrated form in the manufacturing process for spray cans 10 are used. However, they should represent the principle of the individual forming steps in the manufacturing process e).
  • this modified manufacturing method of the spray can 10 is similar to the prior art prior art spray can manufacturing process. Only the manufacturing process e) differs by the use of the device 20 according to the invention. As a result, the optimized manufacturing process for the spray cans known from the prior art is not changed. Consequently, there are no additional costs for the production of the spray can 10 with the forming area 17.
  • the manufacturing process a) for producing an almost cylindrical hollow body 25a with the bottom 12 is achieved by a cost-effective deep-drawing process.
  • the already mentioned method of backward hollow pressing is to be considered here.
  • the molding of the upper can portion 13 with the forming portion 17 can be realized by a simple pressing method.
  • the production process e) for the creation of the upper can section 13 with the shaping region 17 represents the last production process in the production process of unfilled spray cans 10.
  • the spray cans c) are bundled by a large tensioning belt and provided in batches for removal to a bottling company.
  • the spray cans are close together, balancing each other, otherwise the bundle will get thicker up or down, losing its grip on the belt.
  • the embodiment of the spray can 10 and the device 20 shown here are only exemplary implementations of the invention. However, this is not limited to this. It will be understood that the illustrated forms and parts of the invention may be embodied in other forms and constructions having similar characteristics to those described herein. Also, no distinction is made between a spray can and a spray can.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Nozzles (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Medicinal Preparation (AREA)

Abstract

The invention relates to a spray can which is made of metal and which is ergonomically designed in order to ensure a secure hold of the can when spraying. This spray can comprises a lower can portion and an upper can portion, the lower can portion containing a bottom and being of almost cylindrical configuration, so that a cross section of the spray can in this portion is circular. The upper can portion contains a shoulder area and a can opening with a collar for an insertable spraying system from which the contents of the can are discharged. In order to obtain an easy-to-handle spray can which is ergonomically shaped and presents no drawbacks with regard to safety, it is proposed that the upper can portion additionally contains a shaping area, which may also extend above the shoulder area. A cross section in the shaping area of the spray can is configured differently than the almost circular cross section of the lower can portion. The present invention further relates to a device which is used to manufacture the present spray can. The invention also relates to a method for manufacturing the inventive spray can using the corresponding device.

Description

Die Erfindung richtet sich auf eine Spraydose, die ergonomisch ausgestaltet ist um einen sicheren Halt der Dose beim Sprühen sicherzustellen, gemäß der im Oberbegriff des Anspruchs 1 angegebenen Art sowie auf eine Vorrichtung zur Herstellung der Spraydose nach der im Oberbegriff des Anspruchs 11 genannten Art und auf ein Verfahren zur Herstellung der Spraydose mit der genannten Vorrichtung nach dem im Oberbegriff des Anspruchs 13 genannten Art.The invention is directed to a spray can, which is ergonomically designed to ensure a secure hold of the can during spraying, according to the type specified in the preamble of claim 1 and to an apparatus for producing the spray can according to the type mentioned in the preamble of claim 11 and on a method for producing the spray can with said device according to the type mentioned in the preamble of claim 13.

Spraydosen dieser Art werden vielfältig für die unterschiedlichsten Inhaltstoffe eingesetzt, wie z. B. Deodorants, Haarspray, Rasierschaum, Lacke bzw. Farben, Öle etc. Die Verwendung von diesen Spraydosen wird in der Regel dadurch erschwert, dass die Finger, die den zylindrischen Dosenkörper umfassen, keinen ausreichenden Halt der Dose beim Betätigen des Sprühknopfes bieten. Dieses Problem kann auch nicht ohne Weiteres durch die bekannten Lösungen, die bei PET-Getränkeflaschen Anwendung finden, behoben werden. Bei diesen PET-Flaschen werden zusätzliche Griffmulden oder Vertiefungen auf den Mantelkörper der Flasche für einen besseren Halt angebracht. Jedoch sind die weiteren Anforderungen, die an eine PET-Flasche gestellt werden, gänzlich unterschiedlich von denen die an eine Spraydose, die unter hohem Druck steht und aggressive Mittel enthält. Diese Unterschiede sind eindeutig am gewählten Material und im Herstellungsverfahren auszumachen, so dass für die Spraydose neue Lösungsmöglichkeiten gefunden werden müssen.Spray cans of this type are widely used for a variety of ingredients, such. As the deodorants, hair spray, shaving cream, paints or oils, etc. The use of these spray cans is usually complicated by the fact that the fingers that comprise the cylindrical can body, not provide sufficient support of the can when pressing the spray button. Nor can this problem be easily remedied by the known solutions used in PET beverage bottles. In these PET bottles additional recessed grips or depressions are mounted on the shell body of the bottle for a better grip. However, the other requirements placed on a PET bottle are quite different from those relating to a spray can that is under high pressure and containing aggressive agents. These differences are clearly identifiable by the material chosen and the manufacturing process, so that new solutions have to be found for the spray can.

Des weiteren sind Spraydosen heute eine Massenware, die nur wirtschaftlich in größten Mengen herzustellen sind. Von daher gibt es speziell entwickelte Fertigungsstraßen, auf denen ein optimierter Herstellungsprozess stattfindet. Dieser Herstellungsprozess ist fertigungstechnisch derart optimiert, dass kaum Veränderungen bei der Herstellung von Spraydosen möglich sind, ohne zusätzliche Kosten zu verursachen. Soll nun die Form von den bekannten Spraydosen abgewandelt werden, so bedeutet dieses in der Regel einschneidende Auswirkungen auf den gesamten Herstellungsprozess, da entweder ein zusätzlicher Fertigungsvorgang auf den vorhandenen Maschinen ablaufen muss oder zusätzliche oder neue Maschinen benötigt werden.Furthermore, spray cans today are a commodity that can only be produced economically in large quantities. Therefore, there are specially designed production lines where an optimized manufacturing process takes place. This manufacturing process is optimized in terms of manufacturing technology so that hardly any Changes in the production of spray cans are possible without incurring additional costs. Now, if the shape of the known spray cans are modified, this usually means drastic effects on the entire manufacturing process, since either an additional manufacturing process must run on existing machines or additional or new machines are needed.

Aus der Gebrauchsmusterschrift DE 299 10 184 U1 ist eine Spraydose der genannten Art bekannt, die eine umlaufende Griffmulde im Dosenkörper aufweist, die in etwa 3-4 cm von der Dosenöffnung entfernt ist. Und zwar wird durch diese Griffmulde verhindert, dass die Spraydose beim Betätigen des Sprühknopfes durch die haltenden Finger gleitet, jedoch ist die gesamte Haltung der Spraydose in der Hand recht umständlich und unnatürlich. Die Haltung der Dose erschwert sich ebenfalls mit zunehmenden Durchmesser des Dosenkörpers. Auch stellt der starke Absatz, der sich aus der tieferliegenden Griffmulde und der höherliegenden Dosenwand ergibt, einen großen Nachteil für die Sicherheit der Spraydose dar, da das Material der Spraydosenwand in diesem Bereich stark geschwächt ist.From the utility model DE 299 10 184 U1 a spray can of the type mentioned is known, which has a circumferential recessed grip in the can body, which is removed in about 3-4 cm from the can opening. Namely, it is prevented by this recessed grip that the spray can slides on holding the spray button by the holding fingers, but the entire attitude of the spray can in the hand is quite cumbersome and unnatural. The attitude of the can also complicates with increasing diameter of the can body. Also, the strong sales, resulting from the lower recessed grip and the higher wall of the can, a major disadvantage for the safety of the spray can, since the material of the spray can wall is greatly weakened in this area.

Die bekannten Spraydosen, aus der Druckschrift DE 299 10 184 U1 , werden durch den nachfolgend beschriebenen und optimierten Herstellungsprozess gefertigt. Zuerst wird aus einem Blech sogenannte Pellets oder Rohlinge für den weiteren Prozess ausgestanzt. Diese Pellets oder Rohlinge werden durch ein Tiefzieh-Verfahren zu einem zylindrischen Hohlkörper geformt. Dabei wird in der Regel das Verfahren des Rückwärtshohlpressens angewandt. Nach der Herstellung des zylindrischen Hohlkörpers wird dieser von innen lackiert, damit die Spraydose den aggressiven Inhaltsstoffen und Treibgasen chemisch standhält. Ebenfalls wird der zylindrische Hohlkörper von außen Bedruckt oder Lackiert. Für das Bedrucken von außen ist es wichtig, einen rotationssymmetrischen Gegenstand zu haben. Deshalb können Verformungen erst nach dem Bedrucken des zylindrischen Hohlkörpers durchgeführt werden. Die aufgetragenen Lackschichten dienen auch als Gleitmittel für die anschließenden Verformungsschritte. Bevor die zufertigende Spraydose weiter verformt wird, wird der obere Rand des zylindrischen Hohlkörpers sauber abgetrennt, um so eine exakte Formgebung für die Dosenöffnung mit dem Kragen zu gewährleisten. Abschließend wird der obere Dosenbereich mit der Schulter und mit der Dosenöffnung und dem Kragen aus dem zylindrischen Hohlkörper geformt. Diese Verformung geschieht in der Regel durch mehrere Fertigungsschritte in einer Presse. In dieser Presse werden die zylindrischen Hohlkörper zu einer fertigen Spraydose ohne Sprühsystem hergestellt. Die einzelnen Spraydosen werden dann zu einem Bündel aneinander geschnürt und für den Abtransport bereit gestellt. Für die Befüllung der Spraydosen und das Anbringen der Sprühsysteme ist in der Regel ein anderes Unternehmen zuständig.The known spray cans, from the publication DE 299 10 184 U1 , are manufactured by the manufacturing process described below and optimized. First, so-called pellets or blanks are punched out of a metal sheet for the further process. These pellets or blanks are formed into a cylindrical hollow body by a deep drawing process. As a rule, the method of backward hollow pressing is used. After the production of the cylindrical hollow body, this is painted from the inside, so that the spray can chemically withstand the aggressive ingredients and propellants. Also, the cylindrical hollow body is printed or painted on the outside. For printing from the outside, it is important to have a rotationally symmetric object. Therefore, deformations can only be carried out after the printing of the cylindrical hollow body. The applied lacquer layers also serve as lubricants for the subsequent deformation steps. Before the spraying can be further deformed, the upper edge of the cylindrical Hollow body cleanly separated, so as to ensure an exact shape for the can opening with the collar. Finally, the upper can area is formed with the shoulder and with the can opening and the collar of the cylindrical hollow body. This deformation is usually done by several production steps in a press. In this press, the cylindrical hollow bodies are made into a finished spray can without spraying system. The individual spray cans are then tied together in a bundle and made available for transport. It is usually the responsibility of another company to fill the spray cans and install the spray systems.

Des Weiteren offenbart die Druckschrift FR 2 606 686 A1 u. a. ein Fertigungsverfahren für Sprühdosen. Durch dieses Verfahren werden auch Sprühdosenkörper hergestellt, die im mittleren Bereich über einen unrunden Querschnitt verfügen. Dabei werden jedoch scharfkantige und eckige Profile in den Dosenkörper eingearbeitet, die zu einer Materialschwächung der Wandstärke führen. Aus diesem Grund bestehen deutliche Sicherheitsbedenken bei derartig hergestellten Sprühdosenkörper, da diese nicht ohne Sicherheitsrisiko mit einem entsprechenden Fülldruck belastet werden können. Ferner ist das Anbringen von drucktechnischen Hinweisen in den umgeformten Bereichen kaum möglich. Selbst wenn ein Bedrucken der Dose möglich wäre, kann der Druckhinweis nicht an den stark verformten, eckigen Kantstellen von einem Benutzer gelesen werden.Furthermore, the document discloses FR 2 606 686 A1 including a manufacturing process for spray cans. This process also produces spray can bodies which have a non-circular cross-section in the central region. However, sharp-edged and angular profiles are incorporated into the can body, which lead to a material weakening of the wall thickness. For this reason, there are clear safety concerns with spray can bodies produced in this way, since they can not be loaded with a corresponding filling pressure without safety risk. Furthermore, the attachment of printing instructions in the formed areas is hardly possible. Even if a printing of the can would be possible, the pressure indication can not be read by the user at the highly deformed, angular edge points.

Auch die Druckschrift JP 61-193730 A offenbart ein Herstellungsverfahren, zur Herstellung von teilweise verformten Sprühdosen. Auch hierbei werden zum Teil stark eckig oder kantige Verformungen in den Sprühdosenkörper eingebracht, die ebenfalls ein Sicherheitsrisiko darstellen. So weitet sich z. B. der untere Dosenabschnitt auf, um in den oberen Dosenabschnitt überzugehen. Hierdurch findet ebenfalls eine ungewünschte Wandstärkenschwächung statt.Also the publication JP 61-193730 A discloses a manufacturing process for making partially deformed spray cans. Here, too, in part strongly angular or edged deformations are introduced into the spray can body, which also constitute a safety risk. So z. For example, the lower can section to transition to the upper can section. As a result, there is also an undesired wall thickness weakening.

Ferner werden in den veröffentlichten Druckschriften DE 24 26 240 A und US 5,572,893 A allgemeine Fertigungsverfahren für herkömmliche Sprühdosenkörper offenbart.Furthermore, in published publications DE 24 26 240 A and US 5,572,893 A. discloses general manufacturing methods for conventional spray can bodies.

Der Erfindung liegt somit einerseits die Aufgabe zugrunde, eine gut zu handhabende Spraydose der im Oberbegriff des Anspruchs 1 genannten Art zu entwickeln, die ergonomisch geformt ist und trotzdem kein Sicherheitsnachteil darstellt. Dieses wird erfindungsgemäß durch die im kennzeichnenden Teil des Anspruchs 1 angeführten Maßnahmen erreicht, den folgende besondere Bedeutung zukommt.The invention is therefore an object of the one hand to develop a well-handled spray can mentioned in the preamble of claim 1 species that is ergonomically shaped and still represents no security disadvantage. This is inventively achieved by the measures indicated in the characterizing part of claim 1, the following special significance.

Erfindungsgemäß weist die Spraydose - im Gegensatz zu den bekannten Spraydosen aus dem Stand der Technik - im oberen Dosenabschnitt eine zusätzlichen Formgebungsbereich auf, der sich über den gesamten Schulterbereich der Spraydose erstrecken kann. In diesem Formgebungsbereich ist der Querschnitt der Spraydose andersartig zum fast kreisförmigen Querschnitt des unteren Dosenabschnitts ausgestaltet. Das heißt die unterschiedlichen Querschnitte über die Längserstreckung der Spraydose weisen in der Regel keinen kreisförmigen Querschnitt, wie im unteren Dosenabschnitt, auf. Dieser Formgebungsbereich läuft nahtlos, sofern er sich über den Schulterbereich erstreckt, in die genormte Dosenöffnung über. Folglich können bei den erfindungsgemäßen Spraydosen, die über eine genormte Dosenöffnung verfügen, auch genormte Sprühsysteme eingesetzt werde, auch wenn sie im Formgebungsbereich keinen zylindrischen Körper aufweisen.According to the invention, the spray can - in contrast to the known spray cans of the prior art - in the upper doses section on an additional shaping area, which can extend over the entire shoulder region of the spray can. In this shaping region, the cross section of the spray can is designed differently to the almost circular cross section of the lower can section. That is, the different cross-sections over the longitudinal extent of the spray can usually have no circular cross section, as in the lower portion of the can on. This shaping area runs seamlessly, as long as it extends over the shoulder area, into the standardized can opening. Consequently, in the case of the spray cans according to the invention which have a standardized can opening, standardized spray systems can also be used, even if they have no cylindrical body in the shaping area.

Vorteilhafterweise weist die Spraydose eine im wesentlichen gleichbleibende Wandstärke über den Umfang des Querschnitts sowie über ihre Höhe (Längserstreckung) auf, d.h. die Wandstärke ist in radialer und axialer Ausstreckung gleichbleibend. Hierdurch wird vor allen Dingen eine hohe Sicherheit für gefüllte Spraydosen gewährleistet, die unter einem hohen Druck stehen.Advantageously, the spray can has a substantially constant wall thickness over the circumference of the cross-section and over its height (longitudinal extension), i. the wall thickness is constant in radial and axial extension. This ensures above all a high level of safety for filled spray cans that are under high pressure.

Aufgabe der Erfindung ist es andererseits, eine Vorrichtung der eingangs genannten Art aufzuzeigen, damit die Herstellung der Spraydose ohne wesentlichen Veränderungen in einem herkömmlichen aber modifizierten Fertigungsvorgang gewährleistet werden kann. Dieses wird erfindungsgemäß durch die im kennzeichnenden Teil des Anspruchs 11 angeführten Maßnahmen erreicht, denen die nachfolgende besondere Bedeutung zukommt.The object of the invention, on the other hand, to show a device of the type mentioned, so that the production of the spray can be guaranteed without significant changes in a conventional but modified manufacturing process. This is inventively achieved by the measures listed in the characterizing part of claim 11, which have the following special significance.

Die Matrizen der Vorrichtung die zum Formen des oberen Dosenabschnitts verwendet werden, sind erfindungsgemäß derart ausgestaltet, dass durch ihre gewählten Konturen zusätzlich auch der Formgebungsbereich der Spraydose anformbar ist. Somit wird durch die Matrize nicht nur der Schulterbereich und die Dosenöffnung mit Kragen für das einsetzbare Sprühsystem angeformt, sondern ebenfalls auch der zusätzliche Formgebungsbereich. Hierzu weisen die Matrizen in den verschiedenen Querschnitten im Formgebungsbereich Umfänge der Konturen auf; die nicht kreisförmig ausgestaltet sind. Die so geometrisch veränderten Konturen der Matrizen bewirken im Formprozess des oberen Dosenabschnitts auch die Umformung des Formgebungsbereichs.The matrices of the device that are used for molding the upper portion of the can, according to the invention are designed such that by their chosen contours in addition, the molding area of the spray can also be formed. Thus, not only the shoulder area and the can opening with collar for the applicable spray system are formed by the die, but also the additional shaping area. For this purpose, the matrices in the different cross sections in the shaping area have circumferences of the contours; which are not circular in shape. The so geometrically changed contours of the matrices cause in the molding process of the upper portion of the can also the deformation of the molding area.

Der Erfindung liegt ebenfalls die Aufgabe zugrunde, ein abgeändertes Verfahren der bereits genannten Art zu entwickeln, um die erfindungsgemäßen Spraydosen wirtschaftlich in großen Stückzahlen herzustellen. Dies geschieht im Wesentlichen durch den modifizierten Verfahrensschritt im kennzeichnenden Teil des Anspruchs 13.The invention is also based on the object to develop a modified method of the type already mentioned in order to produce the spray cans according to the invention economically in large quantities. This is done essentially by the modified method step in the characterizing part of claim 13.

Bei diesem modifizierten Verfahrensschritt wird der obere Dosenabschnitt mit dem Schulterbereich und mit der Dosenöffnung mit Kragen und dem zusätzlichen Formgebungsbereich durch die Vorrichtung nach Anspruch 11 oder 12 angeformt. Somit wird bei dem Verfahren kein zusätzlicher Fertigungsvorgang im Vergleich zu herkömmlichen Fertigungsverfahren, angewendet, sondern vielmehr durch den geänderten bzw. modifizierten Fertigungsvorgang der erfindungsgemäßen Spraydosen 10 hergestellt. Somit wird weitestgehend auf das bekannte Fertigungsverfahren der herkömmlichen Spraydosen (aus dem Stand der Technik) zurückgegriffen, um den optimierten Ablauf so wenig wie möglich zu beeinflussen. Hierdurch können die erfindungsgemäßen Spraydosen ebenfalls kostengünstig hergestellt werden.In this modified process step, the upper can portion with the shoulder region and with the can opening with collar and the additional shaping region by the device according to claim 11 or 12 is formed. Thus, in the process no additional manufacturing process compared to conventional manufacturing processes, applied, but rather produced by the modified or modified manufacturing process of the spray cans 10 according to the invention. Thus, as far as possible, recourse is made to the known production method of the conventional spray cans (from the prior art) in order to influence the optimized procedure as little as possible. As a result, the spray cans according to the invention can also be produced inexpensively.

Vorteilhafterweise stellt der Fertigungsvorgang zur Erstellung des oberen Dosenabschnitts mit dem Formgebungsbereich den letzten Fertigungsvorgang im Herstellungsprozess von ungefüllten Spraydosen dar.Advantageously, the manufacturing process for creating the upper can section with the shaping area represents the last manufacturing process in the production process of unfilled spray cans.

Weitere Maßnahmen und Vorteile der Erfindung ergeben sich aus den Unteransprüchen, der nachfolgenden Beschreibung sowie den Zeichnungen. In den Zeichnungen ist die Erfindung in einem Ausführungsbeispiel dargestellt. Es zeigen:

Fig. 1
Vorderansicht einer Spraydose in ergonomischer V-Form;
Fig. 2
Seitenansicht der Spraydose aus Fig.1;
Fig. 3
Draufsicht auf die Spraydose aus Fig.1 und 2;
Fig. 4.1
Längsschnitt durch eine in Vorderansicht dargestellte Matrize einer Vorrichtung zur Erstellung des oberen Dosenabschnittes mit Formgebungsbereich der Spraydose in einem ersten Fertigungsschnitt;
Fig. 4.2
Längsschnitt durch die in Seitenansicht dargestellte Matrize aus Fig. 4.1;
Fig. 5.1
ein vergleichbarer Längsschnitt zu Fig. 4.1 durch eine weitere Matrize für einen zweiten Fertigungsschritt, siehe auch Schnitt V.1 - V.1 aus Fig. 5.3;
Fig. 5.2
ein vergleichbarer Längsschnitt zu Fig. 4.2 durch die Matrize aus Fig. 5.1, siehe auch Schnitt V.2 - V.2 aus Fig. 5.3;
Fig. 5.3
Querschnitt V.3 - V.3 durch die Matrize aus Fig. 5.1;
Fig. 6.1
Draufsicht auf einen drehbaren Spannteller als Teil einer Vorrichtung zur Fertigung des oberen Dosenabschnitts mit Formgebungsbereich;
Fig. 6.2
Seitenansicht auf die Vorrichtung mit dem Spannteller und dem Stempelteller mit den angeordneten Matrizen.
Further measures and advantages of the invention will become apparent from the dependent claims, the following description and the drawings. In the drawings, the invention is shown in one embodiment. Show it:
Fig. 1
Front view of a spray can in ergonomic V shape;
Fig. 2
Side view of the spray can Fig.1 ;
Fig. 3
Top view on the spray can Fig.1 and 2 ;
Fig. 4.1
Longitudinal section through a die shown in front view of a device for creating the upper doses section with shaping area of the spray can in a first manufacturing section;
Fig. 4.2
Longitudinal section through the template shown in side view Fig. 4.1 ;
Fig. 5.1
a comparable longitudinal section to Fig. 4.1 through a further die for a second production step, see also section V.1 - V.1 Fig. 5.3 ;
Fig. 5.2
a comparable longitudinal section to Fig. 4.2 through the matrix Fig. 5.1 , see also section V.2 - V.2 Fig. 5.3 ;
Fig. 5.3
Cross-section V.3 - V.3 through the die Fig. 5.1 ;
Fig. 6.1
Top view of a rotatable clamping plate as part of a device for manufacturing the upper portion of the can with shaping area;
Fig. 6.2
Side view of the device with the clamping plate and the stamping plate with the arranged matrices.

Die Spraydose 10 besteht aus Metall und weist einen unteren und einen oberen Dosenabschnitt 11, 13 auf. Der untere Dosenabschnitt 11 enthält einen Boden 12 und eine fast zylindrisch ausgestaltete Dosenwand, so dass die Querschnitte der Spraydose 10 im Bereich des unteren Dosenabschnitts 11 kreisförmig ausgestaltet sind. Alle Querschnitte im Bereich des unteren Dosenabschnitts 11 sind kreisförmig mit dem gleichen Flächeninhalt. Der obere Dosenabschnitt 13 weist einen Schulterbereich 14 und eine Dosenöffnung 15 mit einem Kragen 16 für ein einsetzbares Sprühsystem auf. Bisher bekannte Spraydosen sind im oberen Dosenabschnitt 13 ebenfalls zylindrisch ausgestaltet, so dass auch ihre Querschnitte in diesem Bereich kreisförmig sind. Dabei wird auch als kreisförmig angesehen, wenn der Umfang der Kreisquerschnitte kleine Zacken oder Ausbrüche aufweist, wie sie z.B. bei einem Querschnitt im Bereich der sinusförmigen Griffmulde aus der bekannten Druckschrift DE 299 10 184 U1 vorhanden sind.The spray can 10 is made of metal and has a lower and an upper can section 11, 13. The lower can section 11 includes a bottom 12 and an almost cylindrically shaped can wall, so that the cross sections of the spray can 10 in the region of the lower can section 11 are designed circular. All cross sections in the region of the lower can portion 11 are circular with the same surface area. The upper can portion 13 has a shoulder portion 14 and a can opening 15 with a collar 16 for an insertable spray system. Previously known spray cans are also cylindrical in the upper can section 13, so that their cross sections in this area are circular. It is also regarded as circular when the circumference of the circular cross sections has small points or spikes, as in the case of a cross section in the region of the sinusoidal recessed grip from the known publication DE 299 10 184 U1 available.

Der Schulterbereich 14 stellt einen Übergangsbereich dar, in dem sich die größere Querschnittsfläche des zylindrischen Dosenkörpers kontinuierlich auf die kleinere Querschnittsfläche der Dosenöffnung verjüngt. Bei den bekannten Spraydosen aus dem Stand der Technik sind verschiedene Schulterbereiche 14 bekannt, die eine Rundschulter, Schrägschulter oder Rillenschulter aufweisen. Jedoch ist ein Querschnitt bei den bekannten Schulterbereichen 14 auch immer kreisförmig.The shoulder region 14 represents a transition region in which the larger cross-sectional area of the cylindrical can body tapers continuously to the smaller cross-sectional area of the can opening. In the known spray cans of the prior art, various shoulder regions 14 are known, which have a round shoulder, oblique shoulder or grooved shoulder. However, a cross section in the known shoulder regions 14 is always circular.

Bei der erfindungsgemäßen Spraydose 10 ist zusätzlich im oberen Dosenabschnitt 13 ein Formgebungsbereich 17 enthalten, der sich auch über den Schulterbereich 14 erstrecken kann. Querschnitte im Formgebungsbereich 17 der Spraydose 10 sind andersartig zu den fast kreisförmigen Querschnitten des unteren Dosenabschnitts 11 ausgestaltet.In the spray can 10 according to the invention, a shaping region 17 is additionally contained in the upper can section 13, which can also extend over the shoulder region 14. Cross-sections in the shaping region 17 of the spray can 10 are configured differently to the almost circular cross-sections of the lower can section 11.

In den Fig. 1 bis 3 ist eine Spraydose 10 dargestellt, die ovale Querschnitte im Formgebungsbereich 17 der Spraydose 10 aufweist. In der Fig. 1 ist die V-förmige Ausgestaltung der Spraydose 10 zu erkennen. Durch diese nach oben hin breiter werdende Form der Spraydose 10 wird eine ergonomische Handhabung der Spraydose 10 garantiert. Hierdurch wird ein Weggleiten der Spraydose 10 bei ihrer Verwendung, insbesondere bei der Betätigung des Sprühsystems mit glitschigen Fingern deutlich vermindert. Wie weiter in den Fig. 1 bis 3 zu erkennen ist, weist der untere Dosenabschnitt 11 einen gleichbleibenden kreisförmigen Querschnitt auf. In diesem Bereich des unteren Dosenabschnitts 11 wird die Spraydose 10 - in einem noch näher beschriebenen Fertigungsvorgang - von einer Spannvorrichtung 23 umfasst.In the Fig. 1 to 3 a spray can 10 is shown, which has oval cross sections in the shaping area 17 of the spray can 10. In the Fig. 1 the V-shaped configuration of the spray can 10 can be seen. Through this upward widening shape of the spray can 10 an ergonomic handling of the spray can 10 is guaranteed. As a result, a sliding away of the spray can 10 is significantly reduced in their use, especially in the operation of the spray system with slippery fingers. As further in the Fig. 1 to 3 can be seen, the lower socket portion 11 has a constant circular cross-section. In this area of the lower can section 11, the spray can 10 - in a production process to be described in more detail - comprises a clamping device 23.

Vorteilhafterweise weist die Spraydose 10 eine im Wesentlichen gleichbleibende Wandstärke über den Umfang des Querschnitts sowie über die Höhe (Längserstreckung) der Spraydosenwand auf. Das heißt, die Wandstärke der Spraydose 10 ist in radialer und axialer Ausdehnung im Wesentlichen gleichbleibend. Hierdurch wird eine hohe Sicherheit für die Spraydose 10, insbesondere bei einem hohen Fülldruck erreicht. Dieses ist von großer Bedeutung, da sich der Fülldruck durch äußere Umstände, wie z.B.Advantageously, the spray can 10 has a substantially constant wall thickness over the circumference of the cross section and over the height (longitudinal extent) of the spray can wall. That is, the wall thickness of the spray can 10 is substantially constant in radial and axial extent. As a result, a high level of safety for the spray can 10 is achieved, in particular with a high filling pressure. This is of great importance, since the filling pressure due to external circumstances, such as

Temperaturschwankungen, stark beeinflussen lässt. So muss die Spraydose 10 auch besonderen Anforderungen standhalten, wenn sie z.B. der direkten Sonnenbestrahlung im Auto ausgeliefert ist.Temperature fluctuations, strongly influenced. Thus, spray can 10 must withstand special requirements, e.g. the direct sunlight is delivered in the car.

Um eine vergleichbare Sicherheit zu herkömmlichen, zylindrisch ausgestalteten Spraydosen zu erzielen, wird vorgeschlagen, dass der Umfang des kreisförmigen Querschnitts aus dem unteren Dosenabschnitt 11 größenmäßig gleich zum Umfang des andersartigen Querschnitts im Formgebungsbereich 17 ausgebildet ist. Durch diese beschriebene Maßnahme besteht ein direkter Einfluss auf die gewünschte gleichbleibende Wandstärke der Spraydose 10. Somit werden starke Verformungen, wie sie aus der Druckschrift DE 299 10 184 U1 bekannt sind, vermieden und mögliche Schwachstellen der Spraydose 10 im Vorfeld ausgeschlossen.In order to achieve comparable safety to conventional, cylindrically designed aerosol cans, it is proposed that the circumference of the circular cross-section from the lower can section 11 be made equal in size to the circumference of the different cross-section in the forming region 17. By this measure described there is a direct influence on the desired constant wall thickness of the spray can 10. Thus, strong deformations, as they are known from the document DE 299 10 184 U1 are known, avoided and possible weaknesses of the spray can 10 excluded in advance.

Vorteilhafterweise ist die Fläche der andersartigen Querschnitte im Formgebungsbereich 17 oval oder ellipsenartig ausgestaltet. Durch diese Formgebung der Spraydose 10 wird eine ergonomische Handhabung sichergestellt, wobei gleichzeitig die maximale Sicherheit erzielt wird. Dabei ist es ratsam, auf besonders enge Radien im Umfang des Querschnitts im Formgebungsbereich 17 zu verzichten.Advantageously, the surface of the different cross-sections in the shaping area 17 is designed to be oval or elliptical. This shape of the spray can 10 ensures ergonomic handling, at the same time maximum safety is achieved. It is advisable to dispense with particularly narrow radii in the circumference of the cross section in the forming area 17.

Ebenfalls kann die Fläche des andersartigen Querschnitts im Formgebungsbereich 17 auch jegliche andere Form innehaben und sich somit einem Dreieck oder Rechteck annähern, wobei auch hier die Ecken durch möglichst große Radien realisiert werden. Durch die frei wählbare Formgestaltung der Spraydose 10 kann auch jede andere ergonomische Handhabung der Dose erzielt werden mit einem gleichzeitigen, wohlgefälligen Aussehen.Likewise, the area of the different cross-section in the shaping area 17 can also have any other shape and thus approximate a triangle or rectangle, the corners also being realized here by radii which are as large as possible. Due to the arbitrary shape design of the spray can 10, any other ergonomic handling of the can can be achieved with a simultaneous, pleasing appearance.

Da, wie bereits erwähnt, Spraydosen heute eine Massenware sind, ist es zweckmäßig, dass die Spraydose 10 eine genormte Dosenöffnung 15 aufweist, in die genormte Sprühsysteme einsetzbar sind. Zu diesem Zweck ist die Dosenöffnung 15 in der Regel kreisförmig ausgestaltet. Hiervon ist ebenfalls der Kragen 16 betroffen, da er auch für die genormten Sprühsysteme von Bedeutung ist.Since, as already mentioned, spray cans today are a commodity, it is expedient that the spray can 10 has a standardized can opening 15 into which standardized spray systems can be used. For this purpose, the can opening 15 is designed generally circular. Of these is also the Collar 16 affected as it is also important for the standardized spray systems.

Vorteilhafterweise ist die Spraydose 10 mit einem eingesetzten Sprühsystem für einen Fülldruck zwischen 5 und 35 bar geeignet, insbesondere jedoch für einen Fülldruck zwischen 10 und 20 bar oder für einen Fülldruck zwischen 12 und 18 bar. Wie bereits erwähnt, kann jedoch der Fülldruck deutlich über den genannten Werten liegen, wenn die Sprühdose 10 einer starken Erwärmung ausgesetzt ist.Advantageously, the spray can 10 with a spray system used for a filling pressure between 5 and 35 bar suitable, but in particular for a filling pressure between 10 and 20 bar or for a filling pressure between 12 and 18 bar. As already mentioned, however, the filling pressure can be clearly above the stated values when the aerosol can 10 is exposed to strong heating.

Um die Spraydose 10 kostengünstig und nach einem bekannten, modifizierten Herstellungsverfahren fertigen zu können, ist es ratsam, dass das Metall der Spraydose 10 aus Weißblech oder Aluminium besteht. Selbstverständlich sind hier auch jegliche Legierungen im Bereich von Weißblech oder Aluminium umfasst.In order to be able to manufacture the spray can 10 inexpensively and according to a known, modified manufacturing process, it is advisable that the metal of the spray can 10 be made of tinplate or aluminum. Of course, here are also any alloys in the field of tinplate or aluminum covers.

Zur Herstellung einer erfindungsgemäßen Spraydose 10 (nach einem der Ansprüche 1 bis 10) enthält die Vorrichtung 20 eine oder mehrere Matrizen 24 zur Fertigung des oberen Dosenabschnitts 13 mit dem Schulterbereich 14 und mit der Dosenöffnung 15 mit dem Kragen 16 aus einem zylindrischen Hohlkörper 25 mit Boden 12, wobei durch die Konturen 30 der Matrize 24 die Form des oberen Dosenabschnitts 13 bestimmt ist. Diese Vorrichtung 20 dient zum Pressen der Spraydose 10 aus einem zylindrischen Hohlkörper 25a mit Boden 12. Die Konturen 30 der Matrize 24 sind derart ausgestaltet, dass zusätzlich auch der andersartig Formgebungsbereich 17 der Spraydose 10 anformbar ist, indem bei verschiedenen Querschnitten im Formgebungsbereich 17 einer Matrize 24 die Umfänge 31 der Konturen 30 nicht kreisförmig ausgestaltet sind. Somit wird durch die Vorrichtung 20 auch direkt der andersartige Formgebungsbereich 17 im oberen Dosenabschnitt 13 hergestellt.For producing a spray can 10 according to the invention (according to one of claims 1 to 10), the device 20 comprises one or more dies 24 for producing the upper can portion 13 with the shoulder region 14 and with the can opening 15 with the collar 16 of a cylindrical hollow body 25 with bottom 12, wherein the shape of the upper can portion 13 is determined by the contours 30 of the die 24. This device 20 is used for pressing the spray can 10 from a cylindrical hollow body 25a with bottom 12. The contours 30 of the die 24 are designed such that in addition also the different shaping area 17 of the spray can 10 can be formed by at different cross sections in the forming area 17 of a die 24, the perimeters 31 of the contours 30 are not circular. Thus, the device 20 also directly the different shape region 17 in the upper doses section 13 is prepared.

Dieser Fertigungsvorgang besteht jedoch aus einzelnen Fertigungsschritten, wiesie in den Fig. 6.1 und 6.2 angedeutet sind. In einem ersten Schritt wird ein zylindrischer Hohlkörper 25a mit Boden 12 in eine Spannvorrichtung 23 auf dem drehbaren Spannteller 21 der Vorrichtung 20 angebracht. Danach fährt der verschiebbare Stempelteller 22 mit den daran befestigten Matrizen 24 zum Spannteller 21 (s. Pfeil 27). Dieses ist der erste Fertigungsschritt für die Verformung des oberen Dosenabschnitts 13 zur Herstellung der Spraydose 10. Hierdurch wird die Form des zylindrischen Hohlkörpers 25a auf die Form des zylindrischen Hohlkörpers 25b umgeformt. Nachdem der Stempelteller 22 in seine Ausgangsposition zurückgefahren ist, dreht sich der Spannteller 21 in Drehrichtung 26 um einen bestimmten Winkel. Dann wird ein neuer zylindrischer Hohlkörper 25a auf dem Spannteller 21 aufgespannt und der bereits beschriebene Fertigungsschritt beginnt von vorne. Jetzt wird allerdings nicht nur der zylindrische Hohlkörper 25a, sondern auch der schon bereits erstellte zylindrische Hohlkörper 25b weiter verformt, indem wieder der Stempelteller 22 mit den angebrachten Matrizen 24 zum Spannteller 21 fährt. Durch diesen zweiten Fertigungsschritt, der dem ersten jedoch gleicht, wird der zylindrische Hohlkörper 25b zum zylindrischen Hohlkörper 25c durch die Matrize 24b geformt. Anschließend wird der Spannteller 21, nachdem der Stempelteller 22 in seiner Ausgangsposition steht, wieder schrittweise in Drehrichtung 26 gedreht und der Fertigungsschritt beginnt von vorne. Da auf dem Spannteller 21 bis zu 35 zylindrische Hohlkörper 25 angebracht werden können, kann auch dieser Fertigungsvorgang aus insgesamt 35 Umformschritten für die Spraydose 10 bestehen. Durch diese schrittweise Umformung der zylindrischen Hohlkörper 25 entsteht am Ende eine fertig hergestellte Spraydose 10. Wie bereits deutlich geworden ist, enthält folglich die Vorrichtung 20 auch den drehbaren Spannteller 21 mit den Spannvorrichtungen 23 sowie den verschiebbaren Stempelteller 22 mit den Aufnahmen für die Matrizen 24.However, this manufacturing process consists of individual manufacturing steps, wieie in the Fig. 6.1 and 6.2 are indicated. In a first step, a cylindrical hollow body 25a with bottom 12 is mounted in a clamping device 23 on the rotatable clamping plate 21 of the device 20. Then he drives displaceable stamping plates 22 with the matrices 24 attached thereto to the clamping plate 21 (see arrow 27). This is the first manufacturing step for the deformation of the upper can section 13 for the production of the spray can 10. As a result, the shape of the cylindrical hollow body 25a is converted to the shape of the cylindrical hollow body 25b. After the stamping plate 22 has moved back to its original position, the clamping plate 21 rotates in the direction of rotation 26 by a certain angle. Then, a new cylindrical hollow body 25a is clamped on the clamping plate 21 and the manufacturing step already described starts from the front. Now, however, not only the cylindrical hollow body 25a but also the cylindrical hollow body 25b which has already been produced is further deformed by the stamping plate 22 with the attached dies 24 again traveling to the clamping plate 21. However, by this second manufacturing step, which is similar to the first one, the cylindrical hollow body 25b is formed into the cylindrical hollow body 25c by the die 24b. Subsequently, the clamping plate 21, after the punch plate 22 is in its initial position, again rotated stepwise in the direction of rotation 26 and the manufacturing step starts from the beginning. Since up to 35 cylindrical hollow bodies 25 can be mounted on the clamping plate 21, this production process can also consist of a total of 35 forming steps for the spray can 10. As a result of this stepwise deformation of the cylindrical hollow body 25, a ready-made spray can 10 is produced at the end. Consequently, the device 20 also contains the rotatable clamping plate 21 with the clamping devices 23 and the displaceable stamp plate 22 with the receptacles for the matrices 24.

Vorteilhafterweise weisen die Konturen 30 bei verschiedenen Querschnitten im Formgebungsbereich 17 einer Matrize 24 gleich lange Umfänge 31b auf. Hierdurch wird die spezielle Formgebung im Formgebungsbereich 17 der Spraydose 10 erzielt.Advantageously, the contours 30 at different cross sections in the shaping area 17 of a die 24 of equal length circumferences 31b. As a result, the special shape in the molding area 17 of the spray can 10 is achieved.

In der Fig. 4.1 und 4.2 ist eine erste Matrize 24a dargestellt, die auf der Vorrichtung 20, insbesondere einem verschiebbaren Stempelteller 22 angebracht ist. Diese Matrize 24a ist in der Fig. 1 als Längsschnitt durch eine Vorderansicht dargestellt, wodurch deutlich die Kontur 30a sichtbar wird. Diese Matrize 24a dient zum ersten Umformungsschritt des zylindrischen Hohlkörpers 25a. Deutlich ist aus den Fig. 4.1 und 4.2 zu erkennen, dass die Kontur 30a in dem nach unten offenen Durchbruch einen ovalen Querschnitt aufweist (s. unterschiedlicher Durchmesser im Formgebungsbereich 17). Dieser Querschnitt verjüngt sich nach oben hin und wird für die Dosenöffnung 15 kreisförmig. In der Fig. 5.1 bis 5.3 wird eine zweite Matrize gezeigt, die für den zweiten Fertigungsschritt des zylindrischen Hohlkörpers 25b verwendet wird. Wie aus den Fig. 5.1 und 5.2 zu erkennen ist, wird durch diese Matrize 24b der Kragen 16 an die Dosenöffnung 15 teilweise angeformt. Deutlich ist der Umfang 31 b der Kontur 30b im Querschnitt V.3 - V.3 aus der Fig. 5.3 zu erkennen. Dieser Umfang 31b der Kontur 30b ist ovalförmig ausgestaltet.In the Fig. 4.1 and 4.2 a first die 24a is shown mounted on the device 20, in particular a displaceable punch plate 22 is. This die 24a is in the Fig. 1 shown as a longitudinal section through a front view, which clearly the contour 30a is visible. This die 24a serves for the first forming step of the cylindrical hollow body 25a. It is clear from the Fig. 4.1 and 4.2 to recognize that the contour 30a in the downwardly open aperture has an oval cross-section (s., Different diameter in the forming region 17). This cross-section tapers upwards and becomes circular for the can opening 15. In the Fig. 5.1 to 5.3 a second die is shown which is used for the second manufacturing step of the cylindrical hollow body 25b. Like from the Fig. 5.1 and 5.2 can be seen, the collar 16 is partially formed by this die 24b of the can opening 15. Clearly, the circumference 31 b of the contour 30 b in cross section V.3 - V.3 from the Fig. 5.3 to recognize. This circumference 31b of the contour 30b is configured in an oval shape.

Es sei an dieser Stelle erwähnt, dass die dargestellten Matrizen 24a, 24b nur beispielhafte Ausgestaltungen sind und so nicht unbedingt in der dargestellten Form im Fertigungsprozess für Spraydosen 10 zum Einsatz kommen. Jedoch sollen sie das Prinzip der einzelnen Umformschritte im Fertigungsvorgang e) darstellen.It should be mentioned at this point that the matrices 24a, 24b shown are only exemplary embodiments and thus not necessarily in the illustrated form in the manufacturing process for spray cans 10 are used. However, they should represent the principle of the individual forming steps in the manufacturing process e).

Des Weiteren richtet sich die Erfindung auch auf ein Verfahren zur Herstellung der Spraydose 10, bei dem zumindest folgende Fertigungsvorgänge, die selbst aus mehreren Fertigungsschritten bestehen, vorhanden sind:

  1. a) Fertigung eines fast zylindrischen Hohlkörpers 25a mit Boden 12 aus einem Pellet oder Rohling,
  2. b) Innenlackierung des zylindrischen Hohlkörpers 25a,
  3. c) Bedruckung oder Lackierung des zylindrischen Hohlkörpers 25a auf der Außenseite
  4. d) Abschneiden des oberen Randes des zylindrischen Hohlkörpers 25a zum exakten Anformen des Kragens 16 der Dosenöffnung 15 und
  5. e) Fertigung des oberen Dosenabschnitts 13 mit dem Schulterbereich 14 und mit der Dosenöffnung 15 mit dem Kragen 16.
Furthermore, the invention is also directed to a method for producing the spray can 10, in which at least the following manufacturing processes, which themselves consist of several production steps, are present:
  1. a) production of an almost cylindrical hollow body 25a with bottom 12 of a pellet or blank,
  2. b) interior painting of the cylindrical hollow body 25a,
  3. c) printing or painting of the cylindrical hollow body 25a on the outside
  4. d) cutting off the upper edge of the cylindrical hollow body 25 a for the exact molding of the collar 16 of the can opening 15 and
  5. e) Production of the upper can portion 13 with the shoulder portion 14 and with the can opening 15 with the collar 16.

Bei dem zuletzt genannten Fertigungsvorgang e) zur Erstellung des oberen Dosenabschnitts 13 mit dem Schulterbereich 14 und mit der Dosenöffnung 15 mit dem Kragen 16 wird die Vorrichtung 20 nach Anspruch 11 oder 12 verwendet, wodurch auch der andersartige Formgebungsbereich 17 des oberen Dosenabschnitts 13 anformbar ist. Folglich ähnelt dieses modifizierte Herstellungsverfahren der Spraydose 10 dem bekannten Herstellungsverfahren von Spraydosen aus dem Stand der Technik. Nur der Fertigungsvorgang e) unterscheidet sich durch die Verwendung der erfindungsgemäßen Vorrichtung 20. Hierdurch wird der optimierte Herstellungsprozess für die aus dem Stand der Technik bekannten Spraydosen nicht verändert. Folglich entstehen auch keine zusätzlichen Kosten für die Herstellung der Spraydose 10 mit dem Formgebungsbereich 17. An dieser Stelle muss ergänzt werden, dass die Reihenfolge der Fertigungsvorgänge a) bis e) des zuvor genannten Verfahrens nicht auf die dargestellte Reihenfolge festgelegt ist, sondern auch variieren kann. Ebenfalls ist es möglich, dass ein Fertigungsvorgang unterbrochen wird um einen anderen Fertigungsvorgang durchzuführen. So ist aus dem Stand der Technik bekannt, den Fertigungsvorgang e) für den Fertigungsvorgang d) zu unterbrechen.In the latter manufacturing process e) for creating the upper can portion 13 with the shoulder portion 14 and the can opening 15 with the collar 16, the device 20 is used according to claim 11 or 12, whereby the other type of shaping area 17 of the upper can portion 13 can be formed. Thus, this modified manufacturing method of the spray can 10 is similar to the prior art prior art spray can manufacturing process. Only the manufacturing process e) differs by the use of the device 20 according to the invention. As a result, the optimized manufacturing process for the spray cans known from the prior art is not changed. Consequently, there are no additional costs for the production of the spray can 10 with the forming area 17. It must be added at this point that the order of the manufacturing operations a) to e) of the aforementioned method is not set to the order shown, but may also vary , It is also possible that a manufacturing process is interrupted to perform another manufacturing process. Thus, it is known from the prior art to interrupt the production process e) for the production process d).

Vorteilhafterweise wird bei dem erfindungsgemäßen Verfahren der Fertigungsvorgang a) zur Fertigung eines fast zylindrischen Hohlkörpers 25a mit dem Boden 12 durch ein kostengünstiges Tiefzieh-Verfahren erreicht. Insbesondere ist hier an das bereits erwähnte Verfahren des Rückwärtshohlpressens zu denken. Somit kann auch die Anformung des oberen Dosenabschnitts 13 mit dem Formgebungsbereich 17 durch ein einfaches Pressverfahren realisiert werden.Advantageously, in the method according to the invention, the manufacturing process a) for producing an almost cylindrical hollow body 25a with the bottom 12 is achieved by a cost-effective deep-drawing process. In particular, the already mentioned method of backward hollow pressing is to be considered here. Thus, the molding of the upper can portion 13 with the forming portion 17 can be realized by a simple pressing method.

Ebenfalls ist es von Vorteil, wenn der Fertigungsvorgang e) zur Erstellung des oberen Dosenabschnitts 13 mit dem Formgebungsbereich 17 der letzte Fertigungsvorgang im Herstellungsprozess von unbefüllten Spraydosen 10 darstellt. Nach diesem Fertigungsvorgang e) werden die erstellten Spraydosen c) durch einen großen Spannriemen gebündelt und stapelweise zum Abtransport in ein Abfüllunternehmen bereitgestellt. Zu diesem Zweck ist es ratsam die Spraydosen 10 derart zu gestalten, dass sich die Form der Spraydosen 10 beim Bündeln, d. h. die Spraydosen stehen dicht nebeneinander, gegenseitig ausgleicht, da ansonsten das Bündel nach oben oder unten dicker wird und so den Halt durch den Spannriemen verlieren würde.It is likewise advantageous if the production process e) for the creation of the upper can section 13 with the shaping region 17 represents the last production process in the production process of unfilled spray cans 10. After this manufacturing process e) the spray cans c) are bundled by a large tensioning belt and provided in batches for removal to a bottling company. For this purpose, it is advisable to design the spray cans 10 so that the shape of the spray cans 10 when bundling, d. H. The spray cans are close together, balancing each other, otherwise the bundle will get thicker up or down, losing its grip on the belt.

Es bleibt noch zu bemerken, dass die hier dargestellten Ausführungsform der Spraydose 10 sowie der Vorrichtung 20 nur beispielhafte Verwirklichungen der Erfindung sind. Diese ist jedoch nicht darauf beschränkt. Es versteht sich, dass die dargestellten Formen und Teile der Erfindung auch in anderen Ausführungen und Konstruktionen vorhanden sein können, die über ähnliche Eigenschaften verfügen, wie diejenigen, die hier beschrieben sind. Ebenfalls wird nicht zwischen einer Spraydose und einer Sprühdose unterschieden.It remains to be noted that the embodiment of the spray can 10 and the device 20 shown here are only exemplary implementations of the invention. However, this is not limited to this. It will be understood that the illustrated forms and parts of the invention may be embodied in other forms and constructions having similar characteristics to those described herein. Also, no distinction is made between a spray can and a spray can.

Bezugszeichenliste:LIST OF REFERENCE NUMBERS

1010
SpraydoseSpray can
1111
untere Doseabschnittlower dose section
1212
Bodenground
1313
oberer Doseabschnittupper dose section
1414
Schulterbereichshoulders
1515
Dosenöffnungcan opening
1616
Kragencollar
1717
Formgebungsbereichshaping area
2020
Vorrichtungcontraption
2121
drehbarer Spanntellerrotatable clamping plate
2222
verschiebbarer Stempeltellermovable stamping plate
2323
Spannvorrichtungjig
24a24a
Matrize für den 1. FertigungsschrittDie for the 1st production step
24b24b
Matrize für den 2. FertigungsschrittDie for the 2nd production step
24c24c
Matrize für den 3. FertigungsschrittMatrix for the 3rd production step
25a25a
zylindrischer Hohlkörper vor dem 1. Fertigungsschrittcylindrical hollow body before the 1st production step
25b25b
zylindrischer Hohlkörper vor dem 2. Fertigungsschrittcylindrical hollow body before the 2nd production step
25c25c
zylindrischer Hohlkörper vor dem 3. Fertigungsschrittcylindrical hollow body before the 3rd production step
2626
Pfeil für Drehrichtung von 21Arrow for direction of rotation of 21
2727
Pfeil für Längsbewegung von 22Arrow for longitudinal movement of 22
30a30a
Kontur der Matrize 24aContour of the die 24a
30b30b
Kontur der Matrize 24bContour of the die 24b
31b31b
Umfang der Kontur 30bCircumference of the contour 30b

Claims (13)

  1. A spray can (10) made of metal, with a lower and an upper can section (11, 13),
    wherein
    the lower can section (11) contains a base (12) and is configured almost cylindrically, such that a cross-section of the spray can (10) is circular in this section, and
    the upper can section (13) is provided with a shoulder area (14) and with a can aperture (15) with a collar (16) for an insertable aerosol system, and
    that the upper can section (13) additionally contains a shaping area (17), which can also extend over the shoulder area (14), and
    that a cross-section of the shaping area (17) of the spray can (10) is configured differently to the almost circular cross-section of the lower can sections (11), and
    characterised in that
    a substantially uniform wall thickness is present over the periphery of the cross-section (radial) and over the height (axial) of the spray can (10), and
    the periphery of the circular cross-section from the lower can section (11) is configured identically, in terms of size, to the periphery of the different cross-section in the shaping area (17),
    wherein the spray can (10) has a V-shaped configuration.
  2. The spray can (10) according to Claim 1, characterised in that the surface of the different cross-section in the shaping area (17) is oval or ellipse-like.
  3. The spray can (10) according to Claim 1 or 2, characterised in that the surface of the different cross-section in the shaping area (17) is approximate to a triangle or a rectangle.
  4. The spray can (10) according to one of the preceding claims, characterised in that the spray can (10) has a standardised can aperture (15) into which standardised spray systems can be inserted.
  5. The spray can (10) according to one of the preceding claims, characterised in that the spray can (10) with inserted aerosol system is suitable for a filling pressure between 5 and 35 bar.
  6. The spray can (10) according to Claim 5, characterised in that the filling pressure of the spray can (10) is between 10 and 20 bar.
  7. The spray can (10) according to Claim 5, characterised in that the filling pressure of the spray can (10) is between 12 and 18 bar.
  8. The spray can (10) according to one of the preceding claims, characterised in that the metal of the spray can (10) is tinplate or aluminium.
  9. A device (20) for manufacturing the spray can (10) according to one of claims 1 to 8 containing one or more moulds (24) for the production of the upper can sections (13) with the shoulder area (14) and with the can aperture (15) with collar (16) from an almost cylindrical hollow body (25a) with base (12), wherein
    the shape of the upper can section (13) is determined by the contours (30) of the moulds (24),
    characterised in that
    the contours (30) of the moulds (24) are configured such that additionally the different shaping area (17) of the spray can (10) can also be formed,
    by the peripheries (31) of the outlines (30) not being configured circularly in various cross-sections in the shaping area (17) of a mould (24).
  10. The device (20) according to Claim 9, characterised in that, for various cross-sections in the shaping area (17) of a mould (24), the contours (30) have peripheries (31) of uniform length.
  11. A method for manufacturing the spray can (10) according to one of claims 1 to 8 with at least the following production processes, which themselves consist of one or more production steps:
    a) production of an almost cylindrical hollow body (25a) with a base (12)
    b) interior painting of the cylindrical hollow body (25a)
    c) printing on or painting of the cylindrical hollow body (25a) on the exterior
    d) cutting the upper rim of the cylindrical hollow body (25a) for the exact forming of the collar (16) of the can aperture (15)
    e) production of the upper can section (13) with the shoulder area (14) and with the can aperture (15) with the collar (16)
    characterised in that
    the device (20) according to Claim 9 or 10 is used in the production process e) of the upper can section (13) with the shoulder area (14) and with the can aperture (15) with collar (16),
    by means of which the different shaping area (17) of the upper can section (13) can also be formed.
  12. The method according to Claim 11, characterised in that the production process a) for producing an almost cylindrical hollow body (25a) with a base (12) is achieved by deep-drawing methods.
  13. The method according to Claim 11 or 12, characterised in that the production process e) for constructing the upper can section (13) with the shaping area (17) is the last production process in the manufacturing operation of unfilled spray cans (10).
EP03785911A 2002-12-23 2003-12-22 Partially oval spray can Expired - Lifetime EP1628892B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10261534A DE10261534A1 (en) 2002-12-23 2002-12-23 Spray can
PCT/EP2003/014717 WO2004058597A1 (en) 2002-12-23 2003-12-22 Partially oval spray can

Publications (2)

Publication Number Publication Date
EP1628892A1 EP1628892A1 (en) 2006-03-01
EP1628892B1 true EP1628892B1 (en) 2009-08-19

Family

ID=32519475

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03785911A Expired - Lifetime EP1628892B1 (en) 2002-12-23 2003-12-22 Partially oval spray can

Country Status (7)

Country Link
US (1) US20060071035A1 (en)
EP (1) EP1628892B1 (en)
AT (1) ATE440049T1 (en)
AU (1) AU2003294931A1 (en)
DE (2) DE10261534A1 (en)
ES (1) ES2331913T3 (en)
WO (1) WO2004058597A1 (en)

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US7726165B2 (en) 2006-05-16 2010-06-01 Alcoa Inc. Manufacturing process to produce a necked container
US7934410B2 (en) * 2006-06-26 2011-05-03 Alcoa Inc. Expanding die and method of shaping containers
US20090194550A1 (en) * 2008-02-05 2009-08-06 Jeff Yount Personal Lubricant Bottle Sheath and Method of Use Thereof
ES2398038T3 (en) 2010-03-05 2013-03-13 Hinterkopf Gmbh Shaping device
ES2398642T3 (en) 2010-03-05 2013-03-20 Hinterkopf Gmbh Forming device
EP2605873B1 (en) 2010-08-20 2021-04-14 Alcoa USA Corp. Shaped metal container and method for making same
US9327338B2 (en) 2012-12-20 2016-05-03 Alcoa Inc. Knockout for use while necking a metal container, die system for necking a metal container and method of necking a metal container
USD762481S1 (en) 2014-04-11 2016-08-02 iMOLZ, LLC Oval shaped can
US20180170656A1 (en) * 2014-04-11 2018-06-21 iMOLZ, LLC Non-round metallic pressurized container and method of manufacturing same

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CH475804A (en) * 1967-06-26 1969-07-31 Alusuisse Method of manufacturing a metal casing and casing obtained by implementing the method
US3759203A (en) * 1970-12-30 1973-09-18 Continental Can Co Container shaping apparatus
DE2426240C3 (en) 1974-05-29 1981-04-30 Kaname Hiratsuka Kanagawa Kitsuda Deep drawing device for seamless high pressure vessels
JPS61193730A (en) 1985-02-20 1986-08-28 Takeuchi Press Kogyo Kk Production of deformed can
FR2606686B1 (en) * 1986-11-18 1992-02-07 Cebal PROCESS FOR CONFORMING A DISPENSER HOUSING, IN PARTICULAR AN AEROSOL DISPENSING HOUSING
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USD462274S1 (en) * 2000-09-18 2002-09-03 Owens-Brockway Glass Container Inc. Container
US20030102278A1 (en) * 2001-12-04 2003-06-05 Thomas Chupak Aluminum receptacle with threaded outsert

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WO2004058597A1 (en) 2004-07-15
DE10261534A1 (en) 2004-07-15
DE50311836D1 (en) 2009-10-01
EP1628892A1 (en) 2006-03-01
AU2003294931A1 (en) 2004-07-22
US20060071035A1 (en) 2006-04-06
ATE440049T1 (en) 2009-09-15
WO2004058597A8 (en) 2005-01-06
ES2331913T3 (en) 2010-01-20

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