EP0252370B1 - Cup for supporting the valve of a spray canister - Google Patents

Cup for supporting the valve of a spray canister Download PDF

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Publication number
EP0252370B1
EP0252370B1 EP87109078A EP87109078A EP0252370B1 EP 0252370 B1 EP0252370 B1 EP 0252370B1 EP 87109078 A EP87109078 A EP 87109078A EP 87109078 A EP87109078 A EP 87109078A EP 0252370 B1 EP0252370 B1 EP 0252370B1
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EP
European Patent Office
Prior art keywords
disc
annular groove
seal
plate
spray
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.)
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EP87109078A
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German (de)
French (fr)
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EP0252370A1 (en
Inventor
Martin Becker
Herbert Dr. Meuresch
Louis Pericard
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.)
Deutsche Prazisions-Ventil GmbH
Deutsche Prazisions Ventil GmbH
Original Assignee
Deutsche Prazisions-Ventil GmbH
Deutsche Prazisions Ventil GmbH
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS 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
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers 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
    • B65D83/38—Details of the container body

Definitions

  • the invention relates to a closure for a spray can, consisting of a plate for holding the valve of the spray can, with a central body part for receiving the valve and an annular groove surrounding the central body part, formed by flanging the outer edge part of the plate, in which one Gasket is arranged and which serves to accommodate the opening edge of the spray can to which the plate is clipped.
  • the middle body part 2 after inserting the seal 3 into the annular groove 4 of the plate 1 and placing the plate 1 on the outwardly rolled opening edge 5 of the spray can 6 , wherein the annular groove 4 of the plate 1 overlaps the opening edge 5 - by so-called «clinching» radially outwards under the opening edge 5 of the spray can 6 to the clinch diameter D c to seal the plate 1 to the spray can 6.
  • the spreading head of the clinching tool lies against an outer surface 7 of the edge part 8 forming the annular groove 4 as an abutment and projects into the body part 2 up to a predetermined clinching height Hc.
  • the seal thickness Tg can have the following fluctuation ranges:
  • the thickness T m of the plate material can have the following values, for example: With the radii R c and R b remaining the same, the clinch height Hc should therefore be set approximately as follows:
  • the dimensions of the plate flange 9 resulting from the encircling of the edge part 8 of the plate 1 and of the lower section 10 of a protective hood 11 or an actuating attachment which engages under it and which engages with the plate flange 9 are closely related to these variable sizes which serve to securely seal the compressed gas pack becomes. You can choose between two options:
  • the height H u of the lower section of the protective hood must be chosen so that the section 10 even in the smallest space with the height D s between the free edge of the to reduce the storage Flange 9 and the top of the spray can 6 fits, since the height Ds changes depending on the thickness T m of the plate material and the thickness Tg of the seal 3. There are therefore cases in which the lower section 10 does not completely fill the gap D s between the flange 9 and the top of the spray can. This is undesirable for optical reasons.
  • the invention is based on the object of specifying a plate of the generic type which, regardless of changes in the thickness of the seal and plate, reduces the storage effort on the part of the bottler and the downtimes of the bottling plant.
  • this object is achieved in that the annular groove is provided with a spacing device which bears against the gasket and which is shaped in accordance with the material thicknesses of the plate and gasket assigned to it such that the distance from one another as an abutment for the clinching tool when the plate is clipped onto the opening edge of the Aerosol-serving outer surface of the flanged edge part from the opening edge after the clinking when choosing a plate and a seal with the dimension resulting from the shape of the spacing device and the assigned material thicknesses of plate and seal has a constant value predetermined for all material thicknesses of plate and seal.
  • the clinch height H c and the height H s of the plate flange remain the same for all thicknesses of the plate material and the seal, since different thicknesses of plate material and seal are compensated for by appropriate design of the spacer device.
  • the bottler therefore does not need to change the clinching tool regardless of the thickness of the plate material and seal.
  • he can use protective hoods or actuating attachments in which the height Hu of the lower section 10 is constant and equal to the gap height Ds, so that the cost of warehousing is also reduced.
  • the spacer device preferably has at least one projection in the annular groove.
  • a projection can be formed in a simple manner in the shaping of the plate or in the later assembly of the plate by the valve supplier.
  • the projection can thus be formed by a recess in the outer surface of the edge part of the plate forming the annular groove. This is simply pressed into the plate material in the manner of a bead.
  • the spacer device can then have cup-like depressions or radial ribs on the bottom of the annular groove. At the same time, these stiffen the plate material in the ring groove.
  • ribs can also be formed in a simple manner by radial depressions in the outer surface of the edge part of the plate forming the annular groove.
  • the spacer device can have a projection which extends at the bottom of the annular groove in its circumferential direction. Such a projection, even if it is formed as a continuous circumferential depression in the outer surface of the edge part of the plate forming the annular groove, is not excessively deformed by the clinch pressure which is later exerted on the plate.
  • the spacer device has a projection which extends on the radially inner side wall of the annular groove in the circumferential direction thereof.
  • Another embodiment can consist in that the spacing device is formed by an oblique wall section of the annular groove.
  • the spacing device is formed by an oblique wall section of the annular groove.
  • FIG. 2 corresponds to those according to FIG. 1, the same reference numbers are used in FIG. 2.
  • Parts of FIG. 2 that deviate from FIG. 1 are provided with reference numbers that are increased by 20 compared to the reference numbers according to FIG. 1.
  • depressions 12 are embossed in the ridge of the edge part 28, which appear as projections 13 on the bottom of the annular groove 24.
  • the depressions 12 and projections 13 are distributed at preferably uniform intervals over the circumference of the plate 21.
  • the depth of the recesses 12 or the height of the projections 13 is chosen so that, together with the respective thickness T m of the plate material and the thickness Tg of the sealing material, it always gives the same constant distance value x, at which H c and Fixed flange height H s, the distance D s always has the same value, so that the height H u of the lower section 10 of the protective hood 11 or a corresponding actuating attachment for the valve of the spray can can can always be chosen to be the same as the distance D s by the Fill the space between the edge flange 29 of the plate 21 and the top of the spray can 6 in all cases with seals 23 and plate materials of different thicknesses completely through the section 10, this section 10 having a radially inwardly projecting projection 14 which snaps under the edge flange 29.
  • the height H o of the upper section of the protective hood 11 is always given the same value, which is the same as the flange height H s of the edge flange 29. Storage of protective hoods 11 with different dimensions of H o and H u is therefore not necessary.
  • a recess 12 ' which is continuous in the circumferential direction and in which a projection 13' which extends correspondingly in the circumferential direction of the plate at the bottom of the annular groove 24 results.
  • the upper edge of the plate shown in this case as dashed line 15 is somewhat lower.
  • the protective hood 11 remains in the same position since it continues to be supported on the curved surface 27 on the outside of the edge part 28. Since the clinching tool is usually not only on the surface 7, i.e. The clinching depth Hc remains unchanged on the ridge of the edge part 28 but also on the surface 27 lying somewhat further outside.
  • the seal 23 is a film seal, i.e. a section cut from a tube, which is pushed over the central body part 22 of the plate 21 into the annular groove 24, so that it not only rests against the bottom of the annular groove 24, but also against the inner side wall 16. In the area of this side wall 16 there are consequently large sealing surfaces. However, an injected seal 3, as shown in FIG. 1, can also be provided.
  • a seal in the form of an annular disk can be used, which only bears between the projection 13 ′ and the ridge of the opening edge 5.
  • the embodiment according to FIG. 3 differs from that according to FIG. 2 only in that instead of the approximately frustoconical or conical recesses 12, those in the form of radial grooves 12 "in the ridge of the edge part 28 are formed with corresponding radial ribs 13" at the bottom of the annular groove 24 are. These grooves 12 "and 13" simultaneously stiffen the bottom of the annular groove 24. Die Dimensions are the same as those of the embodiment of FIG. 2, while the protective hood 11 is omitted to simplify the illustration.
  • FIG. 4 differs from that of FIG. 2 only in that instead of the recesses 12 and projections 13, a recess 12 "and a projection 13" are provided, which are located on the radially inner side wall 16 of the annular groove in its circumferential direction Extend above the lower half of the circular cross section of the rolled opening edge 5 of the spray can 6, so that the abutment surface 7 in the area of the ridge of the edge part 28 of the plate 21 continues to maintain its conventional shape. In the area of the depression 12 ′′ and the projection 13 ′′, the conventional contour of the edge part 28 is drawn in by dashed lines.
  • the embodiment according to FIG. 5 differs from that according to FIG. 2 only in that the cross-sectional contour of the edge part 28 of the plate 21 forming the annular groove 24 is approximately V-shaped above the lower half of the opening edge 5 of the spray can 6 which is circular in cross section, so that the radially inner wall 16 of the annular groove 24 forms an inclined wall section 17 which acts as a spacer device.

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Description

Die Erfindung bezieht sich auf einen Verschluß für eine Sprühdose, bestehend aus einem Teller zur Halterung des Ventils der Sprühdose, mit einem mittleren Körperteil zur Aufnahme des Ventils und einer den mittleren Körperteil umgebenden, durch Umbördelung des äußeren Randteils des Tellers gebildeten Ringnut, in der eine Dichtung angeordnet wird und die der Aufnahme des Öffnungsrandes der Sprühdose dient, an den der Teller angeclincht wird.The invention relates to a closure for a spray can, consisting of a plate for holding the valve of the spray can, with a central body part for receiving the valve and an annular groove surrounding the central body part, formed by flanging the outer edge part of the plate, in which one Gasket is arranged and which serves to accommodate the opening edge of the spray can to which the plate is clipped.

Bei einem bekannten Teller dieser Art, wie er in Fig. 1 dargestellt ist, wird der mittlere Körperteil 2 - nach Einbringen der Dichtung 3 in die Ringnut 4 des Tellers 1 und dem Aufsetzen des Tellers 1 auf dem nach außen umgerollten Öffnungsrand 5 der Sprühdose 6, wobei die Ringnut 4 des Tellers 1 den Öffnungsrand 5 übergreift - durch sogenanntes «Clinchen» radial nach außen unter den Öffnungsrand 5 der Sprühdose 6 bis auf den Clinchdurchmesser Dc aufgeweitet, um den Teller 1 abgedichtet mit der Sprühdose 6 zu verbinden. Der Spreizkopf des Clinchwerkzeugs liegt hierbei an einer äußeren Fläche 7 des die Ringnut 4 bildenden Randteils 8 als Widerlager an und ragt bis zu einer vorbestimmten Clinchhöhe Hc in den Körperteil 2 hinein.In a known plate of this type, as shown in FIG. 1, the middle body part 2 - after inserting the seal 3 into the annular groove 4 of the plate 1 and placing the plate 1 on the outwardly rolled opening edge 5 of the spray can 6 , wherein the annular groove 4 of the plate 1 overlaps the opening edge 5 - by so-called «clinching» radially outwards under the opening edge 5 of the spray can 6 to the clinch diameter D c to seal the plate 1 to the spray can 6. The spreading head of the clinching tool lies against an outer surface 7 of the edge part 8 forming the annular groove 4 as an abutment and projects into the body part 2 up to a predetermined clinching height Hc.

Während der Clinchdurchmesser Dc verhältnismäßig genau eingehalten wird, z.B. bei etwa 27,0 mm, muß die Clinchhöhe Hαvon Fall zu Fall so geändert werden, daß sie an die folgenden Größen angepaßt ist

  • a) an den Spreizkopfradius Rc
  • b) an den Rollradius Rb des Öffnungsrands
  • c) an die Dicke Tg der Dichtung 3 und
  • d) an die Materialdicke Tm des Tellers 1.
While the clinch diameter D c is maintained relatively precisely, for example around 27.0 mm, the clinch height Hα must be changed from case to case so that it is adapted to the following sizes
  • a) to the expansion head radius R c
  • b) to the rolling radius R b of the opening edge
  • c) to the thickness Tg of the seal 3 and
  • d) the material thickness T m of the plate 1.

Diese Größen müssen vom Abfüller der Sprühdose beachtet werden, der auch den Teller 1 mit der Sprühdose 6 verbindet und zu diesem Zweck das Clinchwerkzeug entsprechend einstellen muß.These sizes must be observed by the filler of the spray can, who also connects the plate 1 with the spray can 6 and must set the clinching tool accordingly for this purpose.

Wenn stets das gleiche Clinchwerkzeug und die gleichen Sprühdosen verwendet werden, brauchen jedoch lediglich die Dichtungsdicke Tg und die Tellermaterialdicke Tm berücksichtigt zu werden. Diese können jedoch in Abhängigkeit von der Art der Dichtung und des Tellermaterials sehr unterschiedlich sein. So kann in der Praxis die Dichtungsdicke Tg folgende Schwankungsbereiche aufweisen:

Figure imgb0001
Die Dicke Tm des Tellermaterials kann beispielsweise folgende Werte aufweisen:
Figure imgb0002
Bei gleichbleibenden Radien Rc und Rb müßte die Clinchhöhe Hc daher etwa wie folgt eingestellt werden:
Figure imgb0003
 If the same clinching tool and the same spray cans are always used, however, only the seal thickness Tg and the plate material thickness T m need to be taken into account. However, these can vary widely depending on the type of seal and the plate material. In practice, the seal thickness Tg can have the following fluctuation ranges:
Figure imgb0001
 The thickness T m of the plate material can have the following values, for example:
Figure imgb0002
 With the radii R c and R b remaining the same, the clinch height Hc should therefore be set approximately as follows:
Figure imgb0003

In Abhängigkeit von der gerade verwendeten Teller-Dichtungs-Kombination muß der Abfüller in der Praxis die Clinchhöhe Hc daher in einem Bereich von bis zu 1,35 mm (= ca. 30 %) ggf. verändern.Depending on the plate-seal combination currently used, the bottler must in practice change the clinch height H c in a range of up to 1.35 mm (= approx. 30%).

In engem Zusammenhang mit diesen der sicheren Abdichtung der Druckgaspackung dienenden veränderlichen Größen stehen die Abmessungen des sich durch die Umbörderlung des Randteils 8 des Tellers 1 ergebenden Tellerflansches 9 und des diesen untergreifenden unteren Abschnitts 10 einer Schutzhaube 11 oder eines Betätigungsaufsatzes, der mit dem Tellerflansch 9 verrastet wird. Hier kann zwischen zwei Möglichkeiten gewählt werden:The dimensions of the plate flange 9 resulting from the encircling of the edge part 8 of the plate 1 and of the lower section 10 of a protective hood 11 or an actuating attachment which engages under it and which engages with the plate flange 9 are closely related to these variable sizes which serve to securely seal the compressed gas pack becomes. You can choose between two options:

a) Konstante Flanschhöhen Hsa) Constant flange heights Hs

Obwohl dies äußerst wünschenswert ist, kann dies zu Schwierigkeiten führen, da dies Änderungen der Höhe Hu des unteren Abschnitts 10 der Schutzhaube 11 erfordern kann.Although this is highly desirable, it can cause difficulties because it may require changes in the height H u of the lower portion 10 of the guard 11.

Will man zur Verringerung der Lagerhaltung mit Schutzhauben auskommen, die möglichst nur eine Abmessung aufweisen, muß die Höhe Hu des unteren Abschnitts der Schutzhaube so gewählt werden, daß der Abschnitt 10 selbst in den kleinsten Zwischenraum mit der Höhe Ds zwischen dem freien Rand des Flansches 9 und der Oberseite der Sprühdose 6 paßt, da sich die Höhe Ds in Abhängigkeit von der Dicke Tm des Tellermaterials und der Dicke Tg der Dichtung 3 ändert. Daher gibt es Fälle, in denen der untere Abschnitt 10 den Zwischenraum Ds zwischen Flansch 9 und Sprühdosenoberseite nicht vollständig ausfüllt. Dies ist aus optischen Gründen unerwünscht.If one wants to get by with protective hoods that have only one dimension, the height H u of the lower section of the protective hood must be chosen so that the section 10 even in the smallest space with the height D s between the free edge of the to reduce the storage Flange 9 and the top of the spray can 6 fits, since the height Ds changes depending on the thickness T m of the plate material and the thickness Tg of the seal 3. There are therefore cases in which the lower section 10 does not completely fill the gap D s between the flange 9 and the top of the spray can. This is undesirable for optical reasons.

Wenn letzteres vermieden werden soll, müssen Schutzhauben 11 mit unterschiedlicher Hu auf Lager gehalten werden.If the latter is to be avoided, protective hoods 11 with different Hu must be kept in stock.

b) Konstante Höhe Ds des Zwischenraums zwischen Tellerflansch 9 und Dosenoberseite:b) Constant height D s of the space between the plate flange 9 and the top of the can:

Auch dies wäre äußerst wünschenswert, kann jedoch ebenfalls zu der Schwierigkeit führen, daß die Flanschhöhe Hs in Abhängigkeit von den Dicken der Dichtung und des Tellermaterials verschiedene Abmessungen aufweisen muß.This would also be extremely desirable, but can also lead to the difficulty that the flange height H s must have different dimensions depending on the thickness of the seal and the plate material.

Wenn daher alle Teile richtig zusammenpassen sollen, ist der Abfüller zu einer aufwendigen Lagerhaltung von Teilen mit unterschiedlichen Abmessungen gezwungen.Therefore, if all parts are to fit together correctly, the bottler is forced to keep parts with different dimensions in stock.

Sowohl im Falle a) als auch im Falle b) ist der mögliche Bereich von 1,35 mm, in dem die Clinchhöhe variieren kann, viel zu groß, als daß er durch entsprechende Wahl einer Schutzhaube oder eines Betätigungsaufsatzes einfach ausgeglichen werden könnte.Both in case a) and in case b) the possible range of 1.35 mm, in which the clinch height can vary, is much too large for it to be easily compensated for by appropriate choice of a protective hood or an actuating attachment.

Eine weitere Schwierigkeit ergibt sich dadurch, daß für die richtige Auswahl geschultes Personal zur Verfügung stehen muß, abgesehen von dem zusätzlichen Zeitaufwand. Beides erhöht die Verpackungskosten.Another difficulty arises from the fact that trained personnel must be available to make the right choice, apart from the additional time required. Both increase the packaging costs.

Sodann bedingt jede Änderung der Clinchhöhe Hc eine Neueinstellung des Clinchwerkzeugs. Dies kann sehr zeitaufwendig sein, insbesondere wenn die Abfüllanlage mehrere Clinchköpfe aufweist. Gegebenenfalls erfordert die Umstellung bis zu vier Stunden, in denen die Anlage außer Betrieb ist.Then every change in the clinch height H c requires a new adjustment of the clinching tool. This can be very time-consuming, especially if the filling system has several clinching heads. The changeover may take up to four hours during which the system is out of operation.

Der Erfindung liegt die Aufgabe zugrunde, einen Teller der gattungsgemäßen Art anzugeben, der unabhängig von Änderungen der Dicke von Dichtung und Teller den Lagerhaltungsaufwand auf seiten des Abfüllers und die Stillstandszeiten der Abfüllanlage verringert.The invention is based on the object of specifying a plate of the generic type which, regardless of changes in the thickness of the seal and plate, reduces the storage effort on the part of the bottler and the downtimes of the bottling plant.

Erfindungsgemäß ist diese Aufgabe dadurch gelöst, daß die Ringnut mit einer an der Dichtung anliegenden Abstandshalteeinrichtung versehen ist, die entsprechend ihr zugeordneten Materialdicken von Teller und Dichtung derart geformt ist, daß der Abstand einer als Widerlager für das Clinchwerkzeug beim Anclinchen des Tellers an den Öffnungsrand der Sprühdose dienenden Außenfläche des umgebördelten Randteils vom Öffnungsrand nach dem Anclinchen bei Wahl eines Tellers und einer Dichtung mit dem sich aus der Formgebung der Abstandshalteeinrichtung ergebenden Maß und den zugeordneten Materialdicken von Teller und Dichtung einen für alle Materialdicken von Teller und Dichtung vorgegebenen konstanten Wert aufweist.According to the invention, this object is achieved in that the annular groove is provided with a spacing device which bears against the gasket and which is shaped in accordance with the material thicknesses of the plate and gasket assigned to it such that the distance from one another as an abutment for the clinching tool when the plate is clipped onto the opening edge of the Aerosol-serving outer surface of the flanged edge part from the opening edge after the clinking when choosing a plate and a seal with the dimension resulting from the shape of the spacing device and the assigned material thicknesses of plate and seal has a constant value predetermined for all material thicknesses of plate and seal.

Bei dieser Lösung bleiben die Clinchhöhe Hc und die Höhe Hs des Tellerflansches für alle Dicken des Tellermaterials und der Dichtung gleich, da unterschiedliche Dicken von Tellermaterial und Dichtung durch entsprechende Ausbildung der Abstandshalteeinrichtung ausgeglichen werden. Der Abfüller braucht daher unabhängig von der Dicke von Tellermaterial und Dichtung keine Umstellung des Clinchwerkzeugs vorzunehmen. Desgleichen kann er Schutzhauben oder Betätigungsaufsätze verwenden, bei denen die Höhe Hu des unteren Abschnitts 10 konstant und gleich der Zwischenraumhöhe Ds ist, so daß auch der Lagerhaltungsaufwand verringert wird.With this solution, the clinch height H c and the height H s of the plate flange remain the same for all thicknesses of the plate material and the seal, since different thicknesses of plate material and seal are compensated for by appropriate design of the spacer device. The bottler therefore does not need to change the clinching tool regardless of the thickness of the plate material and seal. Likewise, he can use protective hoods or actuating attachments in which the height Hu of the lower section 10 is constant and equal to the gap height Ds, so that the cost of warehousing is also reduced.

Vorzugsweise weist die Abstandshalteeinrichtung wenigstens einen Vorsprung in der Ringnut auf. Ein solcher Vorsprung läßt sich auf einfache Weise bei der Formgebung des Tellers oder bei der späteren Montage des Tellers durch den Ventillieferanten ausbilden.The spacer device preferably has at least one projection in the annular groove. Such a projection can be formed in a simple manner in the shaping of the plate or in the later assembly of the plate by the valve supplier.

So kann der Vorsprung durch eine Vertiefung in der Außenfläche des die Ringnut bildenden Randteils des Tellers gebildet sein. Diese wird einfach nach Art einer Sicke in das Tellermaterial gedrückt.The projection can thus be formed by a recess in the outer surface of the edge part of the plate forming the annular groove. This is simply pressed into the plate material in the manner of a bead.

Sodann kann die Abstandshalteeinrichtung napfartige Vertiefungen oder radiale Rippen am Boden der Ringnut aufweisen. Diese bewirken gleichzeitig eine Versteifung des Tellermaterials in der Ringnut.The spacer device can then have cup-like depressions or radial ribs on the bottom of the annular groove. At the same time, these stiffen the plate material in the ring groove.

Auch diese Rippen können auf einfache Weise durch radiale Vertiefungen in der Außenfläche des die Ringnut bildenen Randteils des Tellers gebildet sein.These ribs can also be formed in a simple manner by radial depressions in the outer surface of the edge part of the plate forming the annular groove.

Alternativ kann die Abstandshalteeinrichtung einen sich am Boden der Ringnut in deren Umfangsrichtung erstreckenden Vorsprung aufweisen. Ein solcher Vorsprung wird, auch wenn er als kontinuierlich umlaufende Vertiefung in der Außenfläche des die Ringnut bildenden Randteils des Tellers gebildet ist, nicht übermäßig durch den Clinchdruck verformt, der später auf den Teller ausgeübt wird.Alternatively, the spacer device can have a projection which extends at the bottom of the annular groove in its circumferential direction. Such a projection, even if it is formed as a continuous circumferential depression in the outer surface of the edge part of the plate forming the annular groove, is not excessively deformed by the clinch pressure which is later exerted on the plate.

Eine weitere Alternative kann darin bestehen, daß die Abstandshalteeinrichtung einen sich an der radial inneren Seitenwand der Ringnut in deren Umfangsrichtung erstreckenden Vorsprung aufweist. Diese Ausbildung ergibt eine großflächige Anlage im Bereich der die Öffnungsebene der Sprühdose durchsetzenden Dichtungsflächen, auch bei Verwendung einer sogenannten "Filmdichtung" oder einer eingespritzten Dichtung, die sich über mehr als 180° des umgerollten Öffnungsrandes erstreckt. Gleichzeitig kann der First der Wölbung des zur Ringnut umgebördelten Randteils des Tellers weiterhin als ununterbrochene Widerlagerfläche für das Clinchwerkzeug dienen.Another alternative can be that the spacer device has a projection which extends on the radially inner side wall of the annular groove in the circumferential direction thereof. This design results in a large-area system in the area of the sealing surfaces passing through the opening plane of the spray can, even when using a so-called "film seal" or an injected seal, which extends over more than 180 ° of the rolled opening edge. At the same time, the ridge of the curvature of the edge part of the plate flanged to the annular groove can continue to serve as an uninterrupted abutment surface for the clinching tool.

Eine andere Ausbildung kann darin bestehen, daß die Abstandshalteeinrichtung durch einen schrägen Wandabschnitt der Ringnut gebildet ist. Auch hier ergibt sich eine große Dichtfläche und am First des umgebördelten Randteils des Tellers eine ununterbrochene Widerlagerfläche.Another embodiment can consist in that the spacing device is formed by an oblique wall section of the annular groove. Here too there is a large sealing surface and an uninterrupted abutment surface on the ridge of the flanged edge part of the plate.

Die Erfindung und ihre Weiterbildungen werden nachstehend anhand der Zeichnung bevorzugter Ausführungsbeispiele näher beschrieben.The invention and its developments are described below with reference to the drawing of preferred embodiments.

Es zeigen:

  • Fig. 1 einen Teil einer bekannten Sprühdose mit Schutzhaube im Axialschnitt vor dem Aufsetzen der Schutzhaube,
  • Fig. 2 einen Teil eines Axialschnitts einer Sprühdose mit aufgesetzter Schutzhaube und einem ersten Ausführungsbeispiel eines erfindungsgemäß ausgebildeten Tellers,
  • Fig. 3 einen Teil eines Axialschnitts einer Sprühdose mit einem zweiten Ausführungsbeispiel eines erfindungsgemäß ausgebildeten Tellers, wobei die Schutzhaube zur Vereinfachung der Darstellung weggelassen ist,
  • Fig. 4 einen Teil eines Axialschnitts einer Sprühdose mit einem dritten Ausführungsbeispiel eines erfindungsgemäß ausgebildeten Tellers, wobei die Schutzhaube zur Vereinfachung der Darstellung weggelassen ist, und
  • Fig. 5 einen Teil eines Axialschnitts einer Sprühdose mit einem vierten Ausführungsbeispiel eines erfindungsgemäß ausgebildeten Tellers, wobei die Schutzhaube zur Vereinfachung der Darstellung weggelassen ist.
Show it:
  • 1 shows a part of a known spray can with a protective hood in axial section before the protective hood is put on,
  • 2 shows a part of an axial section of a spray can with a protective hood attached and a first exemplary embodiment of a plate designed according to the invention,
  • 3 shows a part of an axial section of a spray can with a second exemplary embodiment of a plate designed according to the invention, the protective hood being omitted to simplify the illustration,
  • 4 shows a part of an axial section of a spray can with a third exemplary embodiment of a plate designed according to the invention, the protective hood being omitted to simplify the illustration, and
  • Fig. 5 shows a part of an axial section of a spray can with a fourth embodiment of a plate designed according to the invention, the protective hood being omitted to simplify the illustration.

Soweit die Teile nach Fig. 2 mit denen nach Fig. 1 übereinstimmen, sind in Fig. 2 die gleichen Bezugszahlen verwendet. Von Fig. 1 abweichende Teile der Fig. 2 sind mit um 20 gegenüber den Bezugszahlen nach Fig. 1 erhöhten Bezugszahlen versehen.Insofar as the parts according to FIG. 2 correspond to those according to FIG. 1, the same reference numbers are used in FIG. 2. Parts of FIG. 2 that deviate from FIG. 1 are provided with reference numbers that are increased by 20 compared to the reference numbers according to FIG. 1.

Bei dem Ausführungsbeispiel nach Fig. 2 sind im First des Randteils 28 Vertiefungen 12 eingeprägt, die am Boden der Ringnut 24 als Vorsprünge 13 in Erscheinung treten. Die Vertiefungen 12 und Vorsprünge 13 sind in vorzugsweise gleichmäßigen Abständen über den Umfang des Tellers 21 verteilt. Die Tiefe der Vertiefungen 12 bzw. die Höhe der Vorsprünge 13 ist so gewählt, daß sie zusammen mit der jeweiligen Dicke Tm des Tellermaterials und der Dicke Tg des Dichtungsmaterials stets den gleichen konstanten Abstandswert x ergibt, bei dem bei fest vorgegebener Clinchhöhe Hc und fest vorgegebener Flanschhöhe Hs der Abstand Ds stets den gleichen Wert aufweist, so daß die Höhe Hu des unteren Abschnitts 10 der Schutzhaube 11 oder eines entsprechenden Betätigungsaufsatzes für das Ventil der Sprühdose stets konstant gleich dem Abstand Ds gewählt werden kann, um den Zwischenraum zwischen dem Randflansch 29 des Tellers 21 und der Oberseite der Sprühdose 6 in allen Fällen unterschiedlich dicker Dichtungen 23 und Tellermaterialien vollständig durch den Abschnitt 10 auszufüllen, wobei dieser Abschnitt 10 einen radial nach innen ragenden Vorsprung 14 aufweist, der unter dem Randflansch 29 einschnappt.In the embodiment according to FIG. 2, depressions 12 are embossed in the ridge of the edge part 28, which appear as projections 13 on the bottom of the annular groove 24. The depressions 12 and projections 13 are distributed at preferably uniform intervals over the circumference of the plate 21. The depth of the recesses 12 or the height of the projections 13 is chosen so that, together with the respective thickness T m of the plate material and the thickness Tg of the sealing material, it always gives the same constant distance value x, at which H c and Fixed flange height H s, the distance D s always has the same value, so that the height H u of the lower section 10 of the protective hood 11 or a corresponding actuating attachment for the valve of the spray can can always be chosen to be the same as the distance D s by the Fill the space between the edge flange 29 of the plate 21 and the top of the spray can 6 in all cases with seals 23 and plate materials of different thicknesses completely through the section 10, this section 10 having a radially inwardly projecting projection 14 which snaps under the edge flange 29.

Auch die Höhe Ho des oberen Abschnitts der Schutzhaube 11 erhält hierbei stets den gleichen Wert, der gleich der Flanschhöhe Hs des Randflansches 29 ist. Eine Lagerhaltung von Schutzhauben 11 mit unterschiedlichen Abmessungen von Ho und Hu entfällt daher.The height H o of the upper section of the protective hood 11 is always given the same value, which is the same as the flange height H s of the edge flange 29. Storage of protective hoods 11 with different dimensions of H o and H u is therefore not necessary.

Desgleichen entfällt eine Einstellung des Clinchwerkzeugs auf unterschiedliche Clinchhöhen Hc auf Seiten des Abfüllers.Likewise, there is no need to adjust the clinching tool to different clinching heights H c on the bottler side.

Anstelle der in Umfangsrichtung des Tellers 21 auseinanderliegenden Vertiefungen 12 kann auch eine in Umfangsrichtung durchgehende Vertiefung 12' vorgesehen sein, bei der sich ein entsprechend in Umfangsrichtung des Tellers am Boden der Ringnut 24 durchgehender Vorsprung 13' ergibt. Bei Ausbildung dieser Vertiefung 12' liegt die für diesen Fall als gestrichelte Linie 15 eingezeichnete Oberkante des Tellers etwas tiefer. Dennoch behält die Schutzhaube 11 die gleiche Lage bei, da sie sich weiterhin an der gekrümmten Fläche 27 auf der Außenseite des Randteils 28 abstützt. Da sich auch das Clinchwerkzeug üblicherweise nicht nur an der Fläche 7, d.h. auf dem First des Randteils 28, sondern auch auf der etwas weiter außen liegenden Fläche 27 abstützt, bleibt auch die Clinchtiefe Hc unverändert.Instead of the recesses 12 which are spaced apart in the circumferential direction of the plate 21, a recess 12 'which is continuous in the circumferential direction and in which a projection 13' which extends correspondingly in the circumferential direction of the plate at the bottom of the annular groove 24 results. When this recess 12 'is formed, the upper edge of the plate shown in this case as dashed line 15 is somewhat lower. Nevertheless, the protective hood 11 remains in the same position since it continues to be supported on the curved surface 27 on the outside of the edge part 28. Since the clinching tool is usually not only on the surface 7, i.e. The clinching depth Hc remains unchanged on the ridge of the edge part 28 but also on the surface 27 lying somewhat further outside.

Bei der Dichtung 23 handelt es sich um eine Filmdichtung, d.h. einen von einem Schlauch abgeschnittenen Abschnitt, der über den mittleren Körperteil 22 des Tellers 21 bis in die Ringnut 24 geschoben wird, so daß er nicht nur am Boden der Ringnut 24, sondern auch an der inneren Seitenwand 16 anliegt. Im Bereich dieser Seitenwand 16 ergeben sich folglich weiterhin große Abdichtflächen. Es kann aber auch eine eingespritzte Dichtung 3, wie sie in Fig. 1 dargestellt ist, vorgesehen sein.The seal 23 is a film seal, i.e. a section cut from a tube, which is pushed over the central body part 22 of the plate 21 into the annular groove 24, so that it not only rests against the bottom of the annular groove 24, but also against the inner side wall 16. In the area of this side wall 16 there are consequently large sealing surfaces. However, an injected seal 3, as shown in FIG. 1, can also be provided.

Ferner kann anstelle der Filmdichtung 23 eine Dichtung in Form einer Ringscheibe verwendet werden, die lediglich zwischen dem Vorsprung 13' und dem First des Öffnungsrandes 5 anliegt. In diesem Falle ergibt sich zwar eine etwas geringere Dichtungsfläche zwischen Teller 21 und Öffnungsrand 5, als bei Verwendung der Dichtung 23 oder der Dichtung 3, doch ist die Dichtfläche wegen des in Umfangsrichtung durchgehenden Vorsprungs 13' noch hinreichend groß.Furthermore, instead of the film seal 23, a seal in the form of an annular disk can be used, which only bears between the projection 13 ′ and the ridge of the opening edge 5. In this case there is a somewhat smaller sealing surface between the plate 21 and the opening edge 5 than when using the seal 23 or the seal 3, but the sealing surface is still sufficiently large due to the circumferential projection 13 '.

Das Ausführungsbeispiel nach Fig. 3 unterscheidet sich von dem nach Fig. 2 lediglich dadurch, daß anstelle der etwa kegelstumpfförmigen oder konischen Vertiefungen 12 solche in Form radialer Nuten 12" im First des Randteils 28 mit entsprechenden radialen Rippen 13" am Boden der Ringnut 24 ausgebildet sind. Diese Nuten 12" und 13" bewirken gleichzeitig eine Versteifung des Bodens der Ringnut 24. Die Abmessungen sind die gleichen wie die des Ausführungsbeispiels nach Fig. 2, während die Schutzhaube 11 zur Vereinfachung der Darstellung weggelassen ist.The embodiment according to FIG. 3 differs from that according to FIG. 2 only in that instead of the approximately frustoconical or conical recesses 12, those in the form of radial grooves 12 "in the ridge of the edge part 28 are formed with corresponding radial ribs 13" at the bottom of the annular groove 24 are. These grooves 12 "and 13" simultaneously stiffen the bottom of the annular groove 24. Die Dimensions are the same as those of the embodiment of FIG. 2, while the protective hood 11 is omitted to simplify the illustration.

Das Ausführungsbeispiel nach Fig. 4 unterscheidet sich von dem nach Fig. 2 lediglich dadurch, daß anstelle der Vertiefungen 12 und Vorsprünge 13 eine Vertiefung 12" und ein Vorsprung 13" vorgesehen sind, die sich an der radial inneren Seitenwand 16 der Ringnut in deren Umfangsrichtung oberhalb der unteren Hälfte des kreisförmigen Querschnitts des umgerollten Öffnungsrandes 5 der Sprühdose 6 erstrecken, so daß die Widerlagerfläche 7 im Bereich des Firstes des Randteils 28 des Tellers 21 ihre herkömmliche Form weiterhin beibehält. Im Bereich der Vertiefung 12" und des Vorsprungs 13" ist die herkömmliche Kontur des Randteils 28 durch gestrichelte Linien eingezeichnet.The embodiment of FIG. 4 differs from that of FIG. 2 only in that instead of the recesses 12 and projections 13, a recess 12 "and a projection 13" are provided, which are located on the radially inner side wall 16 of the annular groove in its circumferential direction Extend above the lower half of the circular cross section of the rolled opening edge 5 of the spray can 6, so that the abutment surface 7 in the area of the ridge of the edge part 28 of the plate 21 continues to maintain its conventional shape. In the area of the depression 12 ″ and the projection 13 ″, the conventional contour of the edge part 28 is drawn in by dashed lines.

Das Ausführungsbeispiel nach Fig. 5 unterscheidet sich von dem nach Fig. 2 lediglich dadurch, daß die Querschnittskontur des die Ringnut 24 bildenden Randteils 28 des Tellers 21 oberhalb der unteren Hälfte des im Querschnitt kreisförmigen Öffnungsrandes 5 der Sprühdose 6 etwa V-förmig ist, so daß die radial innere Wand 16 der Ringnut 24 einen schrägen Wandabschnitt 17 bildet, der als Abstandshaltereinrichtung wirkt.The embodiment according to FIG. 5 differs from that according to FIG. 2 only in that the cross-sectional contour of the edge part 28 of the plate 21 forming the annular groove 24 is approximately V-shaped above the lower half of the opening edge 5 of the spray can 6 which is circular in cross section, so that the radially inner wall 16 of the annular groove 24 forms an inclined wall section 17 which acts as a spacer device.

Claims (8)

1. A closure (21) for a spray can (6) comprising a disc (21) for mounting the valve of the spray can (6), having a central body portion (22) for receiving the valve and an annular groove (24) which surrounds the central body portion (22) and which is formed by flanging over the outer edge portion (28) of the disc (21) and in which a seal is disposed and which serves to receive the edge (5) of the opening of the spray can (6), to which edge the disc (21) is clinched, characterised in that the annular groove (24) is provided with a spacer means (12,12-12"; 13,13'-13") which bears against the seal (3; 23) and which is shaped in accordance with the material thicknesses (Tm, Tg) associated therewith, of the disc (21) and the seal (3; 23), such that the spacing (x) of an outside surface (7) of the flanged-over edge portion (28), which serves as a support means for the clinching tool when clinching the disc (21) to the edge (5) of the opening of the spray can (6), from the edge (5) of the opening, after the clinching operation, with the selection of a disc (21) and a seal (3; 23) with the dimension arising out of the configuration of the spacer means, and the associated material thicknesses (Tm, Tg) of the disc (21) and the seal (3; 23) is of a constant value which is predetermined in respect of all material thicknesses (Tm, Tg) of the disc (21) and the seal (3; 23).
2. A disc according to claim 1 characterised in that the spacer means comprises at least one projection (13, 13'-13"') in the annular groove (24).
3. A disc according to claim 2 characterised in that the projection (13, 13-13") is formed by a depression (12, 12'-12"') in the outside surface of the edge portion (28) of the disc (21 which forms the annular groove (24).
4. A disc according to one of claims 1 to 3 characterised in that the spacer means comprises radial ribs (13") at the bottom of the annular groove (24).
5. A disc according to claim 4 characterised in that the ribs (13") are formed by radial depressions (12") in the outside surface of the edge portion (28) of the disc (21), which forms the annular groove (24).
6. A disc according to one of claims 1 to 3 characterised in that the spacer means comprises a projection (13') extending in the peripheral direction of the annular groove (24) at the bottom thereof.
7. A disc according to one of claims 1 to 3 characterised in that the spacer means comprises a projection (13") extending in the peripheral direction of the annular groove (24) at the radially inward side wall (16) thereof.
8. A disc according to claim 1 characterised in that the spacer means is formed by an inclined wall portion (17) of the annular groove (24).
EP87109078A 1986-06-28 1987-06-24 Cup for supporting the valve of a spray canister Expired EP0252370B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3621817 1986-06-28
DE19863621817 DE3621817A1 (en) 1986-06-28 1986-06-28 PLATE FOR HOLDING THE VALVE OF A SPRAY CAN

Publications (2)

Publication Number Publication Date
EP0252370A1 EP0252370A1 (en) 1988-01-13
EP0252370B1 true EP0252370B1 (en) 1989-11-29

Family

ID=6303996

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87109078A Expired EP0252370B1 (en) 1986-06-28 1987-06-24 Cup for supporting the valve of a spray canister

Country Status (13)

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US (1) US5234137A (en)
EP (1) EP0252370B1 (en)
JP (1) JPS63501944A (en)
AR (1) AR243417A1 (en)
AU (1) AU589542B2 (en)
BR (1) BR8707370A (en)
CA (1) CA1323006C (en)
DE (1) DE3621817A1 (en)
ES (1) ES2012073B3 (en)
MX (1) MX169066B (en)
NZ (1) NZ220860A (en)
WO (1) WO1988000166A1 (en)
ZA (1) ZA874353B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2099863A1 (en) * 1991-02-19 1992-08-20 Richard R. Lemberger Resealable film cartridge for a laser imager
US5132724A (en) * 1991-02-19 1992-07-21 Minnesota Mining And Manufacturing Company Opening and closing mechanism for a laser imager film cartridge
ES2250987T3 (en) * 1995-03-09 2006-04-16 Precision Valve Corporation IMPROVED AEROSOL CONTAINER CLOSURE.
DE29819515U1 (en) * 1998-11-02 1999-01-07 Ewald Euscher GmbH & Co, 33611 Bielefeld Spray can
US20070221685A1 (en) * 2006-03-24 2007-09-27 Wheatley Timothy C Liners for aerosol packages and articles comprising same
JP5219131B2 (en) * 2008-04-25 2013-06-26 東洋製罐株式会社 The structure of the clinch part of the mounting cup
FR2981054B1 (en) * 2011-10-05 2015-01-16 Valois Sas FIXING ELEMENT OF A DISTRIBUTION MEMBER ON THE COLLAR OF A CONTAINER AND DEVICE FOR DISPENSING FLUID PRODUCT COMPRISING SUCH A FIXING MEMBER.
FR2993249B1 (en) * 2012-07-11 2015-03-20 Aptar France Sas JOINT SUPPORT ELEMENT AND FLUID PRODUCT DISPENSING DEVICE HAVING SUCH A SUPPORT ELEMENT.

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU423893B2 (en) * 1968-10-18 1972-05-05 W. R. Grace & Co Aerosol container closures
DE2021643A1 (en) * 1970-05-02 1972-05-18 Thomas Gmbh Valve plate for spray cans
US4150522A (en) * 1977-03-07 1979-04-24 Nicholas A. Mardesich Method for undercap filling of a barrier pack aerosol container
CA1221946A (en) * 1983-01-18 1987-05-19 Robert H. Abplanalp Aerosol valve mounting cup
DE3318728A1 (en) * 1983-05-21 1984-11-22 Cebal Verpackungen GmbH, 8500 Nürnberg ALUMINUM AEROSOL CAN
GB2145775B (en) * 1983-08-31 1987-08-05 Metal Box Plc Pressurisable containers
DE3425276A1 (en) * 1984-07-10 1986-01-23 Deutsche Präzisions-Ventil GmbH, 6234 Hattersheim VALVE ATTACHMENT FOR COMPRESSED GAS PACKINGS
US4792067B1 (en) * 1985-05-13 1999-02-16 Aptargroup Inc Mounting cup

Also Published As

Publication number Publication date
US5234137A (en) 1993-08-10
BR8707370A (en) 1988-09-13
ES2012073B3 (en) 1990-03-01
JPS63501944A (en) 1988-08-04
EP0252370A1 (en) 1988-01-13
JPH0364393B2 (en) 1991-10-07
WO1988000166A1 (en) 1988-01-14
ZA874353B (en) 1987-12-17
DE3621817C2 (en) 1988-04-14
AR243417A1 (en) 1993-08-31
DE3621817A1 (en) 1988-01-14
NZ220860A (en) 1988-11-29
CA1323006C (en) 1993-10-12
AU589542B2 (en) 1989-10-12
AU7702287A (en) 1988-01-29
MX169066B (en) 1993-06-21

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