EP1943164A1

EP1943164A1 - Aerosol container

Info

Publication number: EP1943164A1
Application number: EP06805417A
Authority: EP
Inventors: Vittorio Torrano
Original assignee: Motip Dupli GmbH
Current assignee: Motip Dupli GmbH
Priority date: 2005-10-13
Filing date: 2006-10-12
Publication date: 2008-07-16
Anticipated expiration: 2026-10-12
Also published as: WO2007042013A1; PL1943164T3; DE102005049400A1; EP1943164B1; ATE444246T1; DE502006005000D1

Abstract

The invention concerns an aerosol container comprising a first container (1) designed to hold a first substance as well as a second container (2) arranged in said first container (1) and designed to hold a second substance, an opening device (3) of the second container (2) actuatable from outside the first container (1) being associated with the second container such that the first and second substances may be mixed and/or contacted to form a product to be sprayed. The invention aims at designing an improved aerosol container so that it may be produced more advantageously and so that its disposal or its recycling may be facilitated. Therefor, the opening device (3) has at least one cutting implement (4) to cut the second container (20) around its circumference.

Description

SPRAY CAN

The present invention relates to a spray can having a first container for a first substance and a second container arranged in the second container for a second substance, wherein the second container is operable from outside the first container operable opening means for the second container, so that a Mixing and / or reacting the first and the second substance to form a Sprühguts is einleitbar.

Spray cans of the type mentioned are known from practice and exist in different embodiments. In this case, the first container for the sprayed material usually has a top end of the container final Dombereich with a preferably integrated valve. On the valve, a spray head can be placed, which serves to actuate the valve and to spray the Sprühguts.

Spray cans of the type mentioned are used today in a variety of areas. For example, spray cans are used in paint repairs of damaged automotive paint. On the other hand, spray cans are also used in the field of visual arts. Depending on the application, different requirements are placed on the sprayed material.

In the generic aerosol can, a second container for a second substance is arranged in a first container, which ultimately forms the visible body of the aerosol, for a first substance. One can also speak of a system of can and inner can arranged therein. Before the use of the spray can, the first substance now has to be mixed with the second substance and / or reacted, so that ultimately the dischargeable spray material is formed. In this case, for example, the first substance of a paint and the second substance consist of a hardener, which may be brought together to avoid premature curing of Sprühguts shortly before the application of Sprühguts. The well-known spray can is used in general for Inclusion of any substances and / or components to be combined shortly before application.

In order to initiate the mixing and / or reacting of the first and the second substance, in the known aerosol can, the second container is obviously open by means of an opening device which has a spike for pushing in and tearing open the second container. The second substance can flow into the first substance after actuation of the opening device.

In the known spray can, however, is problematic that the mixing and / or reaction process between the two substances is often only very incomplete, since usually only a portion of the second substance flows into the first substance from the torn by means of the dome second container. Often, a significant amount of second substance remains unused in the second container. This leads to the fact that usually a much larger amount of second substance is to be provided in the second container than is actually necessary to provide the desired spray material. It is considered that just a large part of the second substance remains unused in the second container. This is extremely uneconomical and leads to increased environmental impact and / or increased disposal costs in the disposal of the spent aerosol.

The present invention is therefore an object of the invention to provide a spray of the type mentioned, in which a cheaper production is realized with simplified disposal or simplified recycling with structurally simple means.

According to the invention the above object is achieved by a spray can with the features of claim 1. Thereafter, the aerosol of the aforementioned type is designed and further developed such that the opening device has at least one cutting tool for slicing the second container along its circumference.

In accordance with the invention, it has been recognized that optimizing the opening device solves the above object in a surprisingly simple manner. For this For example, the opening device has at least one cutting tool for cutting open the second container along its circumference. In the spray can according to the invention thus not only an uncontrolled introduction of a hole or tearing of the second container by means of a dome is realized, but a much wider cutting of the second container along its circumference. This allows a much more effective mixing and / or reaction process of the first and the second substance. In this case, an almost complete use of the second substance arranged in the second container for the provision of the spray material is ensured. In other words, a significantly simplified leakage of the second substance from the second container is realized. This saves not only the arrangement of excess second substance in the second container but also costs for disposal or recycling. Ultimately, a disposal and recycling without significant amounts in the spray can remaining substance is realized.

Consequently, with the spray can according to the invention, a spray can is specified in which a more favorable production with simplified disposal or simplified recycling is realized with structurally simple means.

With regard to a safe operation of the cutting tool, the cutting tool could be coupled to a traction means, so that the cutting tool cuts into a wall of the second container by pulling the traction means relative to the first and / or second container.

Furthermore, in view of a safe operation of the cutting tool, the traction means could extend from the inner region of the second container to the outer region of the first container. As a result, a simple operation of the traction means is guaranteed from outside the spray.

Specifically, the cutting tool could be arranged on the arranged in the interior of the second container end of the traction means. The cutting tool is thus virtually remote-controlled. For safe and easy operation of the opening device could be arranged on the arranged in the outer region of the first container end of the traction means, a grip element. In this case, the grip element could be arranged on a base coupled to the traction means. This ensures a secure operative connection of the grip element with the traction means.

With regard to a structurally particularly simple embodiment, the grip element could be annular. The gripping element could furthermore be arranged in a groove formed in the base and be pivotable in this groove. As a result, a folding away of the handle element when not in use and in particular during transport of the spray is possible. This saves transport volume.

With regard to a safe operation of the cutting tool, the traction means could be rotatable about its longitudinal axis. As a result, a rotation of the arranged at the end of the traction means cutting tool is made possible by virtually 360 °. This allows a slicing of the second container along its entire circumference.

With regard to a particularly safe operation of the cutting tool, the traction means could be formed as a rod or pin. As a result, a particularly secure transmission of a rotation of the traction means is ensured on the cutting tool.

Concretely, the traction means could extend through a bottom of the first and / or second container. For safe operation of the cutting tool could be arranged at the bottom of the second container, a guide element for the traction means through which the traction means extends therethrough. In this case, the guide element could be designed in the form of a sleeve.

Furthermore, for safe guidance of the cutting tool during the slicing of the second container, a sliding surface having guide for the cutting tool could be arranged at the bottom of the second container.

In a particularly advantageous embodiment, the cutting tool before slicing the second container could still in a kind of rest position within be arranged of the second container. For cutting the second container then the traction means could be pulled outwards. In this case, the cutting tool could be erected during the pulling of the traction means by sliding along the sliding surface in the direction of the wall of the second container or be erectable. By further pulling on the traction means, the cutting tool could pierce the wall of the second container or cut into the wall of the second container. Only then is the cutting tool brought into an active position. By rotating the traction means in the state pulled out to this point about its longitudinal axis now the second container can be cut along its circumference.

In view of a particularly effective use of the second substance, the traction means could be rotated by more than 360 °, so that a complete separation of a part of a second container is made possible by a remaining remainder of the second container. The user of the spray can feel this state of the completely separated part of the second container due to the lower resistance when turning the traction means, since the cutting tool in this state no longer experiences cutting resistance.

The cutting of the second container is thus effected by a combined movement of a pulling out of the traction means in the direction of the longitudinal axis of the traction means and a rotation of the traction means about its longitudinal axis to the desired extent. These two movements can be performed consecutively or simultaneously. For this purpose, an embodiment of the guide for the cutting tool substantially as an annular disc is particularly favorable. It does not matter in which rotational angle position the cutting tool is just when cutting into the wall of the second container.

For this purpose, the sliding surface could be inclined in a particularly practical manner to the longitudinal axis of the traction means, whereby a particularly safe erection of the cutting tool is realized. Furthermore, the sliding surface could for this purpose be formed substantially conically along the circumference of the guide or the annular disc. Here, a sure erection of the cutting tool is always guaranteed, and Although in each rotational angular position of the traction means or cutting tool relative to the longitudinal axis of the traction means.

In the above-described slicing operation of the second container, the cutting tool is substantially freely rotatable along its circumference after the second container has been completely cut open. As a result, there is a quasi-mechanical visual indicator for the activation of the mixing and / or reacting of the first and the second substance.

In a structurally particularly simple embodiment, the cutting tool could be designed as a knife with preferably a tip and with respect to the tip on both sides arranged cutting edge. As a result, on the one hand a secure cutting into the wall of the second container and on the other hand allows an optional cutting of the second container in both directions of rotation.

In a further concrete embodiment of the spray, the cutting tool could be formed for cutting the second container along its entire circumference. In this regard, the stability and strength of the cutting tool should be selected to be correspondingly high.

Furthermore, with a view to a particularly secure and reliable cutting of the second container, the region of the wall of the second container provided for slicing the second container could be designed to be weaker than other regions of the wall of the second container. In other words, the region of the second container to be cut open could be designed as a type of predetermined breaking point, which facilitates the cutting by means of the cutting tool.

The cutting tool could have a single knife in a particularly simple embodiment. However, it could also have, for example, two blades which protrude in opposite directions radially from the traction means. Specifically, the blades could be offset from each other by an angle of 180 ° with respect to the longitudinal axis of the traction means. This would have the advantage that the complete slicing of the second container along its entire circumference is realized already after a rotation of the traction means by a rotation angle of 180 ° would. Accordingly, the cutting tool could also have more than two blades, which could be arranged at the same angular distance from each other. In such an arrangement, for example, three or four knives, then a rotation of the traction means by 120 ° or 90 ° could be sufficient to ensure complete cutting of the second container along its circumference.

As a container of the spray can according to the invention in particular substantially cylindrical container in question. However, other shaped containers could be used.

There are now various possibilities for designing and developing the teaching of the present invention in an advantageous manner. For this purpose, on the one hand to the claims subordinate to claim 1, on the other hand, to refer to the following explanation of a preferred embodiment of the invention with reference to the drawings. In conjunction with the explanation of the preferred embodiment of the invention with reference to the drawing, generally preferred embodiments and developments of the teaching are explained. In the drawing show

Fig. 1 in a perspective side view, partially broken, a

Embodiment of a spray can according to the invention,

Fig. 2 is a schematic side view and in a sectional view taken along the line A-A, the embodiment of FIG. 1 in the transport or idle state and

Fig. 3 in a schematic side view and in a sectional view along the line B-B, the embodiment of Fig. 1 with pulled-pulling means and cut wall of the second container.

Fig. 1 shows in a perspective side view, partially broken away, an embodiment of a spray can according to the invention. The spray can comprises a first container 1 for a first substance and one in the first container 1 arranged second container 2 for a second substance, wherein the second container 2 is operable from outside the first container 1 operable opening means 3 for the second container 2 is assigned. By opening the second container 2 by means of the opening device 3, a mixing and / or reacting of the first and the second substance to form a sprayable from the spray can be introduced. In other words, after the opening of the second container 2, an outflow of the second substance into the first substance is made possible.

With a view to favorable production with simple disposal or simplified recycling, the opening device 3 has at least one cutting tool 4 for cutting open the second container 2 along its circumference. As a result, a safer opening of the second container 2 and thus a safer mixing and / or reacting the first and the second substandard is ensured. In this case, almost no amount of the second substance remains in the second container 2, so that almost the entire amount of second substance can be mixed with the first substance and / or reacted.

2 and 3 each show in a schematic side view and in a Schnittdarsteilung along the line A-A and along the line B-B, the embodiment of FIG 1. Here, FIG. 2 shows the embodiment in the transport or rest state. More precisely, while a traction means 5 coupled to the cutting tool 4 is inserted into the second container 2. For cutting open the second container 2, the cutting tool 4 is drawn by pulling the traction means 5 relative to the first and second containers 1 and 2 from its rest position into a wall of the second container 2, wherein the cutting tool 4 cuts into the wall of the second container 2. This cut state is shown in FIG.

As shown in FIGS. 2 and 3, the traction means 5 extends from the inner region 6 of the second container 2 to the outer region of the first container 1. The cutting tool 4 is arranged on the arranged in the inner region 6 of the second container 2 end of the traction means 5 , At the arranged in the outer region of the first container 1 end of the traction means 5, a grip element 7 is arranged, which is arranged on a coupled to the traction means 5 base 8. The base 8 is a substantially cylindrical adapter part which is screwed onto the traction means 5. The grip element 7 is ring-shaped and mounted in a groove formed in the socket 8. The traction means 5 is formed as a pin which is rotatable about its longitudinal axis.

By rotating the traction means 5 after cutting into the wall of the second container 2 or simultaneously with this incision, the second container 2 is cut along its circumference. In other words, the upper part of the container 2 can be completely separated from the lower part of the container 2, which ensures a secure merging of the first substance and the second substance.

The traction means 5 extends through a bottom of the first and second containers 1 and 2, wherein at the bottom of the second container 2, a guide element 9 is arranged for the traction means 5, through which the traction means 5 extends therethrough.

At the bottom of the second container 2, a guide 11 is further arranged for the cutting tool 4, which has an ultimately extending around the guide 11 sliding surface 10. The sliding surface 10 is inclined to the longitudinal axis of the traction means 5, whereby a sliding surface 10 formed substantially conically along the circumference of the guide 11 is formed. The guide 11 is designed as an annular disc which is arranged around the guide element 9 or is coupled to the guide element 9.

During the pulling of the traction device 5 out of the aerosol, the cutting tool 4 located in the rest position slides along the sliding surface 10 and is thereby erected in the direction of the wall of the second container 2 until the cutting tool 4 cuts into the wall of the second container 2. This cutting process can be carried out in any rotational angular position of the traction means 5 and thus of the cutting tool 4. The cutting tool 4 is designed as a knife with a tip and with respect to the tip on both sides arranged cutting edge 12. The cutting tool 4 is designed to cut open the second container 2 along its entire circumference and in both directions of rotation with respect to the traction means 5.

At the upper end of the spray can shown in Figs. 1 to 3, a valve for discharging the Sprühguts is arranged.

With regard to further advantageous embodiments and further developments of the teaching of the invention reference is made to avoid repetition on the one hand to the general part of the description and on the other hand to the accompanying claims.

Finally, it should be particularly emphasized that the previously purely arbitrary chosen embodiment is merely for the purpose of discussing the teaching of the invention, but this does not restrict to this embodiment.

Claims

Patent claims

A spray can comprising a first container (1) for a first substance and a second container (2) for a second substance arranged in the first container (1), the second container (2) being mounted from outside the first container (1). operable opening device (3) for the second container (2) is assigned, so that a mixing and / or reacting the first and the second substance for forming a Sprühguts is einleitbar, characterized in that the opening means (3) at least one cutting tool (4) for cutting the second container (2) along its circumference.

2. Spray can according to claim 1, characterized in that the cutting tool (4) with a traction means (5) is coupled, so that the cutting tool (4) by pulling the traction means (5) relative to the first and / or second container (1, 2) in a wall of the second container (2) cuts.

3. Aerosol according to claim 2, characterized in that the traction means (5) from the inner region (6) of the second container (2) extends into the outer region of the first container (1).

4. Spray can according to claim 2 or 3, characterized in that the cutting tool (4) on the inside region (6) of the second container (2) arranged end of the traction means (5) is arranged.

5. Spray can according to one of claims 2 to 4, characterized in that arranged in the outer region of the first container (1) end of the traction means (5), a grip element (7) is arranged.

6. Spray can according to claim 5, characterized in that the grip element (7) is arranged on a with the traction means (5) coupled to the base (8).

7. Spray can according to claim 5 or 6, characterized in that the grip element (7) is annular.

8. Aerosol according to one of claims 2 to 7, characterized in that the traction means (5) is rotatable about its longitudinal axis.

9. aerosol according to one of claims 2 to 8, characterized in that the traction means (5) is designed as a rod or pin.

10. Spray can according to one of claims 2 to 9, characterized in that the traction means (5) through a bottom of the first and / or second container (1, 2) extends therethrough.

11. Spray can according to claim 10, characterized in that at the bottom of the second container (2) a guide element (9) for the traction means (5) is arranged, through which the traction means (5) extends therethrough.

12. Spray can according to claim 10 or 11, characterized in that at the bottom of the second container (2) has a sliding surface (10) having guide (11) for the cutting tool (4) is arranged.

13. Spray can according to claim 12, characterized in that the cutting tool (4) during the pulling of the traction means (5) by sliding along the sliding surface (10) in the direction of the wall of the second container (2) can be erected.

14. Spray can according to claim 12 or 13, characterized in that the guide (11) is designed substantially as an annular disc.

15. Aerosol according to one of claims 12 to 14, characterized in that the sliding surface (10) is inclined to the longitudinal axis of the traction means (5).

16. Spray can according to one of claims 12 to 15, characterized in that the sliding surface (10) is formed substantially conically along the circumference of the guide (11) or the annular disc.

17. Spray can according to one of claims 1 to 16, characterized in that the cutting tool (4) is designed as a knife with preferably a tip and with respect to the tip on both sides arranged cutting edge (12).

18. Spray can according to one of claims 1 to 17, characterized in that the cutting tool (4) for cutting the second container (2) is formed along its entire circumference.

19. Spray can according to one of claims 1 to 18, characterized in that for cutting open the second container (2) provided region of the wall of the second container (2) is formed weaker than other areas of the wall of the second container (2).