WO2011128215A1

WO2011128215A1 - Disposable container, use thereof and a method for applying pressure to a disposable container

Info

Publication number: WO2011128215A1
Application number: PCT/EP2011/055103
Authority: WO
Inventors: Werner Neukirch; Dennis Grittmann
Original assignee: Ardagh Mp Group Netherlands B.V.; Fass-Frisch Gmbh
Priority date: 2010-04-13
Filing date: 2011-04-01
Publication date: 2011-10-20
Also published as: DK2414103T3; ES2543403T3; EP2414103A1; RU2012102994A; UA109398C2; EP2377622A1; EP2414103B1; RU2529511C2

Abstract

The invention relates to a disposable container for receiving and delivering a coloured fluid by spraying, comprising a propellant reservoir, which can be tapped by means of a tapping element and can be re-closed.

Description

IMMEDIATE PACKAGE, ITS USE AND A METHOD OF PRESSURE EXCHANGE

DISPOSABLE container

The invention relates to a disposable container, in particular a disposable ink container for receiving and applying a color fluid by spraying, a method for pressurizing such a container and the use of such a container for paint, varnish, glaze, wood preservatives or similar fluids.

Disposable color containers are known from the prior art, for example in the form of aerosol spray cans. In these, a color fluid and a pressurized propellant container are arranged in the can. At the top of the can is a

Dispensing valve arranged, the operation of which can be sprayed by the propellant pressurized color fluid via a spray nozzle located on the valve. A disadvantage of such Aerosolsprühdosen is that their sizes or

Filling volumes are usually limited to 250 ml to 1000 ml. With aerosol aerosols larger contents the handling is disadvantageous

deteriorates or even impossible. Would like a user a correspondingly large

Applying amount of paint, he is forced to use several such aerosol spray cans that must be disposed of or recycled under appropriate environmental impact.

Another problem with high volume disposable paint spray packages is that there is pressure loss in the package, loss of blowing agent in the blowing agent reservoir as well

Drying or other loss of quality of the color fluid can occur if not all of the color fluid is consumed in one application.

Based on the above-described prior art, the present invention seeks to provide a disposable container for receiving and deploying a

To provide color fluids by spraying, which is suitable for fluid volumes of up to 10 liters or more, meets a high safety standard, especially before a first consumption can be stored safely and without loss of pressure or propellant, the color fluid in particular after partial consumption for long periods without loss of quality stored and can continue to be used and which is easy to dispose of and recyclable and easy to handle. Furthermore, the invention has for its object to provide a method by which such

Einweggebinde can be pressurized. On the device side, the object is achieved by a disposable container, in particular a disposable color container, for receiving and dispensing a color fluid

Spraying, with a storage volume for the color fluid forming container and a pressure control unit which is connectable to a propellant reservoir, wherein the propellant reservoir is arranged or can be arranged on a receiving unit of the disposable container, a piercing element for piercing the propellant reservoir relative to the receiving unit can be positioned, which piercing element via a user-actuated actuator is movable and has a sealing portion with which an introduced by means of the piercing element in the propellant reservoir outlet opening is sealed.

The invention makes it possible that the propellant reservoir can be pre-mounted on or in the receiving unit without pressurized propellant can escape from this and the color fluid container would be exposed to a higher pressure before a first use, especially over a longer period. The only unit that must withstand sustained high pressure is the propellant reservoir itself. The remaining units of the disposable package, on the other hand, need only be designed to withstand increased pressure for shorter periods of time. This is particularly advantageous in the light of the fact that the container according to the invention is a disposable container in which

preferably less high quality materials than reusable containers are used. Furthermore, the container can be realized with less material, resulting in resource conservation and cost savings. A container in the sense of the invention is to be understood in particular as a disposable color container.

The arrangement of the propellant reservoir on or in the receiving unit can basically be done in any way. With particular advantage, it is screwed to the receiving unit, so that commercially available as a propellant reservoir

Gas pressure cartridges can be used. In addition, the propellant reservoir can be connected by latching connection or other positive connection with the receiving unit. With particular advantage, the propellant reservoir is a C0 ₂ cartridge. The amount of gas contained in the cartridge or the propellant reservoir depends in

Essentially from the required for spraying the color fluid internal pressure of the container and the container volume. Particularly advantageous is the use of a commercially available 38g C0 ₂ cartridge together with a 5 liter container. Depending on the spray nozzle used, a container internal pressure between 2.0 bar and 3 bar, preferably 2.5 bar has been found to be particularly advantageous. At a pressure of 2.5 bar 5 Ltr. Color fluid by means of a Commercially available 38g C0 ₂ cartridge sprayable. However, these values may vary depending on the color fluid.

Under a color fluid in the context of the present invention, in particular paints, varnishes, wood preservatives, oils, or similar liquids are to be understood, which must be spread as evenly distributed by means of the spray nozzle. It should be noted that spray pressure, nozzle size and viscosity of the color fluid to be sprayed must be coordinated. Depending on the color fluid, other blowing agents can be used instead of C0 ₂ . To name here are, for example

Nitrogen (N ₂ ) or nitrous oxide (nitrous oxide, N ₂ 0).

The receiving unit preferably consists essentially of plastic and may in particular be designed as an injection-molded component. It can be made of other materials or combinations of materials if it has to withstand very high pressures. Preferably, the receiving unit is designed in the form of a housing in which the piercing element is received. She can in particular a

Having passage opening. In this, the piercing with advantage in

Be arranged movable longitudinally of the housing or the passage opening. With the invention is particularly proposed that the piercing element is arranged to be sealingly movable relative to the receiving unit. The seal can be done for example by an arranged between piercing and receiving unit O-ring seal. The receiving unit has in particular in the passage opening according to a further embodiment of the invention, a thread into which the propellant reservoir can be screwed. The propellant reservoir is preferably sealed against the receiving unit. In particular, a shoulder can be formed in the passage opening for this purpose, against which the propellant reservoir sealingly rests when intended arrangement. The

Receiving unit can directly or indirectly fluidically with the

Be connected pressure control unit.

The piercing element is preferably made of plastic. At his that

Propellant reservoir side facing a piercing tip is formed, which penetrate the propellant reservoir or an existing on the propellant reservoir closure element and can introduce therein an outlet for propellant through which propellant from the propellant reservoir can flow. The piercing tip may be reinforced for this purpose by, for example, a metal sheath or similar reinforcement. The piercing element is on or in the receiving unit in the

Longitudinal linearly guided, preferably in the through hole. To this Purpose, the outer contour of the piercing of the inner contour of the in the

Receiving unit existing through hole correspond. Between

Tapping element and receiving unit is advantageously before a slight clearance fit, so that the piercing element can be moved with sufficient guidance relative to the receiving unit in the longitudinal direction.

The piercing element can be sealed with particular advantage with respect to the receiving unit so as to be resistant to a driving medium. In the case of a through hole in the

Receiving unit arranged piercing element can in the outer contour of the

Tapping or the inner contour of the passage opening to be introduced a groove in which a sealing element is arranged, which seals the present between the piercing element and passage opening gap medium.

At the side opposite the propellant reservoir side, the piercing element can be connected directly or indirectly with the actuator to be actuated by the user. For this purpose, it may have a thread which cooperates with a corresponding mating thread on the actuator and can cause a linear movement of the piercing element in the passage opening upon rotation of the actuator. In this case, the actuator is rotatable, but arranged fixed in the longitudinal direction of the housing of the receiving unit, while the piercing element rotationally fixed, but is arranged linearly movable in or on the receiving unit. Alternatively, the actuator by means of a

Thread, in particular by means of an internal thread, be arranged on the receiving unit, in particular on the housing, while the piercing element in

Is arranged movable longitudinally of the housing. Tapping and actuator are arranged fixed in this case in the longitudinal direction relative to each other, the former need not have threads to cause an adjustment for piercing. For this purpose, an annular groove can be arranged on the piercing element, in which engages a suitable spring of the actuator, or vice versa.

The pressure control unit is arranged in the flow path of the propellant behind the receiving unit and serves to regulate the pressure of the high pressure of

Propellant reservoirs to the low pressure in the container. It is connected to the high pressure side with the propellant reservoir and the low pressure side with the container and has a transfer member, via which a high-pressure side exhaust valve can be actuated in response to low-pressure side pressure fluctuations. The pressure prevailing in the container can act via a flexible membrane on the transmission member, which closes a low-pressure chamber. The height of the pressure and thus the position of the membrane determine the position of the transmission element through which in turn, the position of the exhaust valve is controlled. According to a particular embodiment, a rocker arm is provided as a transmission member. One

Low-pressure side lever arm of the rocker arm abuts against the flexible diaphragm, while a high-pressure lever arm actuates the exhaust valve. The

Transfer member may be biased against the membrane with advantage

In particular, the bias can be adjusted by an end user, whereby the height of the adjustable pressure in the container via the pressure control unit pressure can be determined. The exhaust valve can be biased only on the prevailing pressure on the high pressure side against the transmission member or the rocker arm. As biasing means is advantageously a compression spring of any kind.

The outlet valve preferably has a valve body, in particular made of plastic, sealingly in the high-pressure line between the receiving unit and

Pressure control unit is arranged. The high pressure line may be widened for this purpose to a valve chamber in which the valve body between a

High-pressure line shut-off closed position and the high-pressure line releasing open position is arranged to be movable. A particularly simply designed valve body can be used if the valve chamber is provided at the end with a high-pressure inlet and laterally with an outlet. In this case, the valve body in the closed position sealingly abuts the end-side inlet and moves when it opens from this in its open position, in which it releases the lateral outlet. A surface of the valve body facing the inlet is designed as a sealing surface which sealingly seals the high-pressure inlet in the closed position.

With particular advantage, the membrane is at the low pressure chamber through

Clamping attached. It can in particular via a clamping element with the

Pressure control unit to be jammed, which in turn this means

Locking projections is attached. This allows a particularly simple installation of the membrane.

The pressure control unit may further comprise a pressure relief valve, by which an excessive pressure load of the container is avoided. It is particularly advantageous if the pressure relief valve is fluidically connected to the low-pressure chamber and opens in the event of overpressure relative to the environment, so that the excess pressure can escape into the atmosphere and does not get into the container.

Particularly simple and safe, such a pressure relief valve can be realized by the low pressure chamber is provided with an atmosphere outlet, the pressure medium tight by a spring-loaded closing body of the pressure relief valve is closed. If too high a pressure builds up in the low-pressure chamber, the closing body is lifted off its valve seat against the spring force and releases the outflow opening, so that the overpressure can be reduced.

The color fluid is sprayed with an application device, in particular with a

Spray gun, sprayed. The connecting line between the pressure control unit and application device can be arranged with particular advantage over an adapter piece by an end user detachable and wiederanordbar with the fluid container. In this way, the connecting line as well as the possibly existing adapter piece and the application device can be easily cleaned at a partial consumption of the color fluid. In the connecting line or the adapter piece, a check valve or shut-off valve may be arranged, so that the container before removing the

Application device or connecting line can be tightly closed and the quality of residual color fluid is minimized as little as possible. Although the container according to the invention is a disposable container, so is a

Multiple use in the form of multiple partial emptying allows.

In a further embodiment, the disposable container has an attachment on or in which the pressure regulating unit and / or the receiving unit is or are arranged. In or on the essay further units may be arranged. In particular, there may be placed the spray gun or a similar device for applying the color fluid and the connecting line between this and the pressure control unit. As a result, it is advantageously possible container for large amounts of color fluid than

To provide a disposable container, wherein during the spraying of color fluid, the container can be placed on the floor or a corresponding surface and only the spray gun regardless of the container and its weight can be easily operated and handled. When spraying the color fluid, it is not necessary to move the entire container with the color fluid received therein, which considerably simplifies the spraying and dispensing. The delivery device may be formed depending on the shape, size and material of the container. It can therefore be adapted to the anatomy of the hand with greater freedom of design. It is preferably designed as an injection-molded part, so that it can be inexpensively and easily manufactured in the appropriate form with low weight.

The article may advantageously be designed as a plastic component, in particular as a plastic injection molded component according to another proposal. He may according to another proposal of the invention by the end user substantially insoluble be arranged on the container. In this way, tightness, functionality and safety of the disposable container can be maintained. In particular, the attachment with locking elements, for example in the form of a clip connection, may be fastened to the container rim. Additionally or alternatively, attachment by gluing, welding, soldering or similar types of attachment is possible. It is particularly advantageous if the container edge is formed bead-shaped or provided with a fold. At this bead or fold the article can be defined outwardly or inwardly across by means of locking projections or clips. Another way to set the attachment to the container, is that at the bottom of the container

opposite side of the container wall, a container lid is provided. The container lid can be formed integrally with the container wall or arranged pressure-tight as a separate element on this in a known manner. Preferably, the container lid is made of the same material as the rest of the container. It may be provided in the middle of a filling opening in the container lid, through which the container on the one hand filled with color fluid and on the other hand color fluid can be removed from the container. The filling opening can now be used with particular advantage to the essay exclusively or in addition to the aforementioned

Fix in the same or similar manner to the edge of the container.

In a further embodiment, a riser can be arranged on the attachment, which protrudes into the container. It can be glued, stuck, screwed or otherwise connected to the essay or be integrally formed with this.

Preferably, the riser can be fluidly connected to the connecting line and be adapted to receive color fluid from a region as close to the bottom of the container and to promote the spray gun. With

Particularly advantageous, the container bottom may be curved, so that the center or edge of a deepest point of the container is formed. The riser ends preferably in this lowest point or in its vicinity, so that an almost complete emptying of the disposable container is possible.

According to a further proposal, the riser pipe can project through the filling opening into the storage volume. Alternatively, a separate opening in the container may be provided for the riser. Between the riser opening or filling opening, a sealing plug, preferably made of rubber, can be arranged between riser pipe and the edge of the container surrounding the opening, which seals the gap between riser pipe and opening edge in a fluid-tight and pressure-tight manner. It is

production technology particularly useful if the sealing plug is fixedly arranged on the riser pipe or connected thereto. In particular, the sealing plug with glued to the riser or molded on this. Thus, in a proper arrangement of the attachment to the container, the riser pipe can be arranged together with the sealing plug in a single operation in a sealing manner in the container opening. Likewise, the sealing plug can initially be arranged in the container opening in the intended manner and, where appropriate, by positive locking, frictional connection,

To be held on molding or gluing. In this case, the riser is introduced when arranging the attachment in the sealing plug and possibly glued. With particular advantage, the riser, in addition to the promotion of the color fluid from the container at the same time fulfills the further function of supplying the propellant in the

Storage volume into it.

The cap closing the container, in addition to its function as a closure of the container at the same time perform other tasks, such as some or all necessary for a removal of the color fluid units such as

Pressure control unit, propellant reservoir, riser, connecting line,

Application device and optionally provided safety and

Wear shut-off valves. The basic shape of the attachment can advantageously correspond to the basic shape of the container, in particular be circular. Its lower edge may preferably be slightly larger in diameter than the edge of the container on which the attachment is located. The attachment is then the container edge encompassing on or on the container anordbar. Preferably, the attachment forms a well stackable and manageable shape together with the container. In cylindrical or barrel-shaped container, the entire disposable container may have a cylindrical or barrel-shaped shape, whereby a good stackability can be achieved. On the side turned away from the container, the attachment can have a recess or groove on the outside or inside. Preferably, this extends around the tower in an annular manner. The width and depth of the groove can be matched to the length of the connecting line, so that it can be accommodated in the recess or groove space saving and largely protected from damage. For the discharge device arranged on the connection line, a receptacle can be formed in or on the attachment. In this, the application device may preferably by clamping or

Positive locking or be held by means of releasable retaining means.

In order to facilitate the transport of disposable packaging according to the invention and to improve its handling, one or more handles can be provided on the attachment. Preferably, these are at the of the

Container facing away side or front side of the essay formed. A

Training in the form of circular segment-like handles is particularly advantageous because then a at least partially peripheral boundary can be formed on the side facing away from the container of the essay. With particular advantage is / are the

Handle / handle circular or circular segment parallel to

Container bottom arranged so that the basic structure of the existing of attachment and container disposable container is substantially cylindrical, so that

disposable container according to the invention particularly good stackable and storable as well

are transportable. Alternatively, a handle in the essay be arranged to be retractable, so that it can be brought by a user from this retracted rest position in an extended and projecting from the attachment transport position.

The invention further proposes a method for pressurizing a disposable package, in particular a disposable colored package. The

A disposable container has a storage vessel for color fluid forming container and a pressure control unit which is connected to a propellant reservoir. The propellant reservoir is or is arranged to be closed in a fuel-tight manner on a receiving unit of the disposable container and is pierced by means of a positioning member that can be positioned relative to the piercing element, by the latter being replaced by a piercing element

User-side actuation of an actuator is moved in the direction of the propellant reservoir and seals with a sealing portion of the Treitmittelreservoirs Treibmitteldicht. The piercing element is subsequently moved away from the propellant reservoir, whereby an outlet opening for propellant for pressurizing the container

is released. The sealing of the propellant reservoir can be effected, in particular, by abutting the sealing section after being pierced against the propellant reservoir, the outlet opening being released, since the sealing section is detached from the propellant reservoir.

By the method according to the invention a high level of safety can be realized. The disposable container may be given to the end user as a ready assembled and filled unit and may be activated shortly before use, i. the container to be pressurized. The use of commercial gas cartridges allows safe long-term storage of propellant. For activation, the actuator is actuated on the user side, whereby it initially comes only to a piercing of the propellant reservoir. However, the introduced into the propellant reservoir outlet is still sealed by the sealing portion of the piercing, so that no propellant can flow out and the color fluid container is not yet pressurized. Only by moving the piercing of the

Propellant Reservoir fort the sealing portion is released from the outlet opening and this released, so that blowing agent can flow into the paint fluid container and this is pressurized. The release of the outlet opening can preferably be effected by a further actuation of the actuator. This further operation is opposite to the advantage of the first operation for piercing the propellant reservoir. The additional necessary release of the outlet opening is an advantageous and safety procuring function, since the possibility of accidental

Pressurization of the container can be almost certainly avoided.

Furthermore, the piercing element can be brought into a position sealing the outlet opening by repeated actuation of the actuator. This allows the propellant reservoir in particular after a partial consumption of color fluid

be sealed medium. For an intermediate storage of the disposable container then the pressure in the container can be lowered, for example via a vent. If necessary, the application device and connecting line can be cleaned without the need for further use of the opened

Einweggebindes to use a new propellant reservoir would be.

Further features and details emerge from the following non-limiting description of the figures, in which:

FIG. 1 shows a disposable container in a lateral sectional view,

FIG. 2 shows an attachment of a disposable package in a first sectional view,

FIG. 3 shows an attachment of a disposable package in a second sectional view,

FIG. 4 shows an attachment of a disposable package in a third sectional view,

5 (a, b, c) an attachment of a disposable package in a fourth sectional view with two enlarged detail views,

FIG. 6 an attachment in a perspective representation,

FIG. 7 shows the attachment of FIG. 6 with the handle extended,

8 shows a plan view of a capped attachment of the

Disposable and

FIG. 9 (a, b, c) shows the high-pressure shut-off valve shown in FIG. 3 enlarged in different functional positions.

FIG. 1 shows a disposable container 1 with container 2 and attachment 3 in a lateral sectional view. The container 2 has a substantially circular container bottom 4 and a container wall 5 connected thereto. Of the

Container bottom 4 is curved in its inner region in the direction of the container interior. The outer edge 6 of the container bottom 4 in this way forms an annular standing area, on which the disposable container 1 can be set up safely and stably. The outer edge 6 has an outwardly and in the direction of the container wall 5 crimped fold 7, in which the lower edge of the bottom 4 is received fluid and pressure tight. At the container bottom 4 opposite side of the container wall 5, a container lid 10 is arranged. This is in its interior as well as the

Container bottom 4 curved in the direction of the container interior, so that a peripheral lid edge 1 1 is formed. Similar to the container bottom 4 is the

Container lid 10 fluid and pressure-tight connected by a flange with the upper fold 9 of the container wall 5. The circumferential lid edge 1 1 forms a footprint, on which the container 2 can be stored as a semi-finished product (without attachment 3) or for filling by means of filling lance and stored. It is particularly advantageous if the shape of the container bottom 4 and the outer edge 6 on the shape of the

Container lid 10 and the lid edge 1 1 are tuned, so that

Container bottom 4 and container lid 10 of two stacked container 2 into each other and partly can grip around each other, so that the container 2 as a semi-finished particularly good stacking, storage and transportable. In the container lid 10, a filling opening 13 is provided centrally. A riser pipe 18, which is either formed directly on a base body 14 of the attachment 3 described in more detail below or is sealingly connected thereto, projects into the container 2 through the filling opening 13. The length of the riser 18 is dimensioned such that its open lower riser end 19 terminates in a trough-like depression 20 of the container bottom 4. In this way, it is ensured that via the riser 18 in the container. 2

absorbed color fluid can be removed substantially completely and without residue. The seal between riser 18 and container lid 10 via a introduced into the filling opening 13 and the riser 18 fluid and pressure-tight surrounding plug 23rd

The attachment 3 for the disposable container 1 is shown in various sectional views in Figures 2, 3 and 4 and in perspective views in Figures 5 and 6. He has the main body 14. This one is at the

Proper arrangement of the article 3 the container 2 (as shown in Figure 1) facing side corresponding to the shape of the container, e.g. formed circular and has an annular end edge 15, whose

Inner diameter slightly larger than the outer diameter of the upper

Cover edge 1 1 is so that it can embrace the container 2. In the area of

End edges 15 locking elements 12 are formed in the corresponding

Can counter-latching structures on the container 2 and engage with them, so that the attachment 3 is arranged securely and stably on the container 2.

The riser 18 is to be connected to a line 24 for discharging color fluid. From the container interior via the riser 18 sucked color fluid is then passed through the line 24 to the spray gun 25 as an application device. In the figures, it is shown that the line 24 in an outer side of the base body 14 of the

Attachment 3 trained recess 26 is wound for transport and storage purposes. It can be unwound for spraying the color fluid and is then with the riser 18 on the one hand and the spray gun 25 on the other hand in a later

to connect manner described. At the annular end edge 15 opposite side of the attachment 3, a grip element 27 is formed. As can be seen in particular from FIGS. 5 and 6, the gripping element is movably mounted relative to the attachment 3 on its base body 14, so that it consists of a rest position which is essentially flush with the top of the attachment 3 (shown in FIGS. 1 to 5). can be transferred to a pulled out transport position shown in Fig. 6. Thus, the handle member 27 can be easily grasped by a user in the rest position, a recess 31 is provided in the base body 14 of the attachment 3. Since that

Gripping element 27 terminates flush in its rest position with the top of the attachment 3, several disposable containers 1 can be easily and stably stacked.

About the essay 3, a cover member 32 is slipped for protection during transport. This has a recess 1 6, through which the handle member 27 can be taken and can be transferred to the transport position. Of the

The outer circumference of the lid member 32 is advantageously slightly smaller than the inner diameter of the outer edge 6 of the container bottom 4, so that when stacking several containers of the outer edge 6 of an upper disposable container the

Can cover element 32 of a lower disposable package, so that a particularly stable state is possible.

The spray gun 25 is in the form of a plastic injection molded component as

Disposable spray gun formed. It has a non-illustrated in the figures and actuated by a handle shut-off valve. For spraying in the

Container 2 recorded color fluid, the container interior via the

Pressure control valve 30 by means of CO ₂ as a propellant from a CO ₂ pressure cartridge 29 acted as a propellant reservoir, so that the desired and largely constant internal pressure is ensured for the removal. Upon opening the shut-off valve by actuating the spray gun 25 is in the container 2 under pressure

contained color fluid through the riser 18, the conduit 24 and the spray gun 25 sprayed. The spray gun 25 is formed in a base body 14 in the

Recess arranged and held there by means of a clamping device, not shown.

As can be seen in particular from FIGS. 2, 3 and 4, the CO ₂ print cartridge 29 is screwed into a receiving element 33, which is fastened to the base body 14 of the attachment 3 by means of screw connections 21 or a clip connection. For fixing on the receiving element, the C0 ₂ -Pruckpatrone 29 has an external thread 34 which is formed at its neck area. The receiving element 33 has a matching to this internal thread 22, which in a widened portion 35 of the receiving member 33 protruding in the longitudinal direction thereof

Through opening 36 is arranged. At his the C0 _2- Druckpatrone 29

opposite end ends of the widened area 35 in a shoulder 37th Die

C0 ₂ print cartridge 29 is at its end with the interposition of a sealing element 8 sealingly against the shoulder 37 at.

On the shoulder 37 opposite side of the through hole 36, this is formed with a relation to the flared portion 35 reduced diameter. The inner contour of the passage opening forms a there

Guide portion 38 for a arranged in the through hole 36

Piercing element 39 off. At the end of the passage opening 36 opposite the widened region 35, a further shoulder 40 is arranged as an end stop for the piercing element 39.

The piercing element 39 is essentially cylindrical and has a piercing tip 42 on its end facing the C0 ₂ pressure cartridge 29. It also has a guide region 43 which fits with a small clearance to the guide region 38 of the through-opening 36. In the piercing element 39 is approximately centrally in

Guide portion 43 a groove 41 introduced, in which an O-ring seal 28 is placed. This seals between piercing element 39 and guide region 38 from the center of a driving medium. At the piercing tip 42 opposite end of the piercing element 39 is provided with a connection extension 44. This one has over the

Guide portion 43 of reduced diameter, so that a shoulder 45 is formed, which in turn together with the shoulder 40 from falling out of

Tapping element 39 from the passage opening 36 prevents. The piercing element 39 also has a sealing region 48, which in the direction of the

C0 ₂ -Print cartridge 29 displaced piercing element 39 sealingly abuts against this and a leakage of propellant from the pierced by the piercing

Outlet 49 prevents. The sealing region 48 is formed in particular in the form of a flat sealing surface, which with appropriate positioning of the

Ansteckelements 39 sealingly comes to rest on the C0 ₂ -Printpatrone 29.

At his the C0 ₂ -Print cartridge 29 opposite end has the

Receiving element 33 has an external thread 46, which with a matching

Internal thread of a knob 47 cooperates as an actuator. The knob 47 can be moved by rotation relative to the receiving element 33 in its longitudinal direction. He is further so with the connection extension 44 of

Tapping element 39 connected, that this can be moved by its operation in the longitudinal direction of the passage opening 36. If the knob 47 is rotated in a first direction, the piercing element 39 is in the direction of

C0 ₂ print cartridge 29 shifted, so that it is pierced by the piercing. Without further operation of the knob 47, the piercing element 39 remains in the position piercing the cartridge. In this case, the introduced through the piercing tip 42 into the cartridge outlet opening 49 is closed by the sealing area 48 frictionally sealed, so that initially no blowing agent from the CO ₂ print cartridge 29 can escape. With a rotation in the opposite direction is the

Piercing then moved away from the CO ₂ print cartridge 29, wherein the

Sealing area 48 dissolves from this and the outlet opening 49 is released. After release, propellant from the CO ₂ print cartridge 29 may enter the chamber 50 formed upon retraction of the piercing member 39. This is connected via a passage, not shown in the figures with the pressure control valve 30. By a repeated actuation of the knob 47, the piercing element 39 can be moved back in the direction of the CO ₂ print cartridge 29, so that its sealing area 48 again comes into sealing contact and the outlet opening 49 closes treibmitteldicht.

The pressure control valve 30 is shown clearly recognizable in FIG. It has one

Rocker arm 51, a high pressure chamber 52, a low pressure chamber 53, a

Shut-off valve body 54, a blowing agent passage 55 as a high-pressure line, a compression spring 56 and an elastic membrane 57 on. The formed in the receiving element 33 chamber 50 is connected via the passage, not shown, with the

High pressure chamber 52 connected. This in turn is connected to the low-pressure chamber 53 via the blowing agent passage 55.

In the propellant passage 55 is a high-pressure shut-off valve with the

Shut-off valve body 54 is arranged, via which the Treibmitteldurchlass 55 is closed. The Hochdruckabsperrventil is shown schematically in Figures 9 a to c. The check valve body 54 is expanded in the valve chamber 69

Treibmitteldurchlass 55 arranged, guided by the wall and between a shut-off this shut-off position (Figure 9a) and an open position (Figure 9b) displaced. He is provided with a circumferential groove 67 in which an O-ring 68 is disposed between the check valve body 54 and wall of the

Valve chamber 69 seals. Front side of the check valve body 54 is a Valve seat seal 70 is provided, which lies in the closed position sealing over the opening into the valve chamber 69 Treibmitteldurchurchpassage 55. At his the

Valve seat seal 70 opposite side of the check valve body 54 is formed with a rounded head 71, which, as shown for example in Figure 3, abuts against the rocker arm 51. In the open position of the check valve body 54 is displaced in the direction of the rocker arm 51, whereby the valve seat seal 70 is released from the sealing position. The valve chamber 69 with the low pressure chamber 53 connecting part of the blowing agent passage 55 is released in the open position of the check valve body 54 so that blowing agent from the CO ₂ print cartridge 29 in the

Low pressure chamber 53 can flow. The Absperrventilköper is brought with appropriate and subsequently described release by the rocker arm 51 by acting on the valve seat seal 70 high pressure in the CO ₂ pressure cartridge 29 from the closed position to the open position. The reverse closing operation is effected by a corresponding bias of the rocker arm 51.

The low-pressure chamber 53 of the pressure regulating valve 30 is closed on one side with the elastic membrane 57 and connected via a propellant outlet 58 to the container 2 and via the Treibmitteldurchurchpass 55 with the valve chamber 69. The rocker arm 51 is pivotally mounted about a pivot 60 around, contacted with a high-pressure side lever arm 59, the head of Absperrventilkörpers 54 and with a low-pressure side lever arm 61, the elastic membrane 57th Der

Low-pressure side lever arm 61 is also biased by the compression spring 56 in the direction of the membrane 57. The elastic membrane 57 is between a

Clamping ring 62 and the base 14 held clamped. The clamping ring 62 is attached via latching elements 17 on the base body 14.

In the low-pressure chamber 53 prevails due to the connection with the container 2 of the present in this internal pressure. As can be seen directly from FIG. 3, an equilibrium of forces occurs at the rocker arm 51, in which the force exerted by the compression spring 56 plus the high pressure acting on the cross-sectional area of the shut-off valve body 54 in the high-pressure chamber 52 impinge on the membrane 57

acting internal pressure of the low pressure chamber 53 (corresponding to the pressure in

Counteract container 2). This balance is set in the

Equilibrium case in the low pressure chamber 53 and container 2 of the desired for applying (spraying) of color fluid pressure prevails. When the pressure in the container and low-pressure chamber drops, the pivoting of the rocker arm 51 (in the illustration of FIG. 3 in the counterclockwise direction) occurs due to the resultant imbalance of forces. The high-pressure side lever arm 59 moves it moves away from the Absperrventilköper 54 so that it moves out of its closed position due to the pressure in the high-pressure chamber 52 and the

Propellant passage 55 releases. High pressure propellant from the high pressure chamber 52 may then pass through the propellant passage 55 into the

Low pressure chamber 53 and flow from there via the propellant outlet 58 into the container 2, whereby the equilibrium of forces on the rocker arm 51 is restored. The higher the pressure in the low pressure chamber 53 rises again, the more the rocker arm returns to its original position, wherein the check valve body 54 moves back from the propellant passage 55 releasing position back to its closed position.

In the main body 14, an outlet passage 63 is formed. The main body 14 projects with an extension 64 through the filling opening 13 present in the container lid 10 into the container 2. The riser 18 forms an extension of the extension 64. In the outlet passage 63 is at the riser 18th

an adapter piece 65 inserted opposite end, which on the

Outlet passage 63 opposite side is provided with a connector 66 to which the line 24 can be connected (see Figure 3).

Instead of the adapter piece inserted directly into the outlet passage 63, the adapter piece 65 shown in FIGS. 5a and 5c can be used which is plugged into a shut-off valve 71. As a result, the line 24 can be connected to the spray gun 25, e.g. be removed for cleaning or transport purposes, without it may lead to contamination of remaining in the container 2 color fluid. The shut-off valve 71 essentially has a valve body 77, in which a valve seat 72 is formed, which can be closed in a color fluid-tight manner by means of a shut-off element 73, and a shut-off element 73. The shut-off element 73 is screwed by means of an external thread 76 in the valve body 77 and positioned relative to this over the thread. The shut-off element 73 is also hollow with a through opening 74, in turn, the adapter piece 65 is added in the end. With the shut-off valve 71 closed, i. completely in the

Valve body 77 screwed shut-off 73, the valve seat 72 is closed by a seat seal 75. By unscrewing the valve seat 72 is opened by loosening the seat seal 75 and color fluid can flow through the through hole 74 and the adapter piece 65 to line 24.

In FIGS. 5a and 5b, a pressure relief valve 78 is shown which is intended to prevent overloading of the container 2 due to excessive pressure. The pressure relief valve 78 closes an outlet 79, via which the low pressure chamber 53 with the environment connected is. It consists essentially of a provided with a seal 80 valve body 81, a compression spring 82 and a base body 83. The latter is fixedly arranged on the base body 14. The compression spring 82 biases the valve body 81 with the seal 80 relative to the main body 83 in the direction of the outlet 79, so that the seal 80 closes this pressure medium tight. If the pressure in the low-pressure chamber 53 rises to a too high value, the valve body 81 is lifted off via the seal 80 from the outlet 79 against the bias of the compression spring 82, so that pressure medium from the low-pressure chamber 53 can escape into the environment and an overload of the Container 2 is avoided. After escaping the overpressure and reaching the desired pressure in

Low pressure chamber 53 and container 2 closes the pressure relief valve 78 automatically by the action of the compression spring 82nd

LIST OF REFERENCE NUMBERS

Disposable bundle 37 shoulder

Container 40 38 Guide area

Attachment 39 piercing element

Container bottom 40 shoulder

Container wall 41 groove

Outer edge 42 piercing tip

Fold 45 43 guide area

Sealing element 44 connection extension

Fold (above) 45 shoulder

Container lid 46 external thread

Lid rim 47 knob

Locking element 50 48 sealing section

Filling opening 49 outlet opening

Main body 50 chamber

End edge 51 rocker arm

Recess (in 32) 52 high pressure chamber

Locking element 55 53 low-pressure chamber

Riser 54 Shut-off valve body

Steigrohrende 55 Treibmitteldurchlass trough-like depression 56 compression spring

Screw connection 57 membrane

Internal thread 60 58 propellant outlet

Plug 59 high pressure side lever arm

Line 60 swivel joint

Spray gun 61 low-pressure side lever arm

Recess 62 clamping ring

Handle element 65 63 outlet passage

O-ring 64 extension

C0 ₂ print cartridge 65 Adapter piece

Pressure control valve 66 connector

Recess (in 14) 67 groove

Cover element 70 68 O-ring

Receiving unit 69 Valve chamber

External thread 70 valve seat

expanded area 71 shut-off valve

Through hole 72 valve seat Shut-off element 79 outlet

Through opening 80 Seal

Seat seal 81 valve body

io 82 compression spring

Valve body 83 Basic body overpressure valve

Claims

Claims:

1. disposable container (1), in particular disposable colored containers, for recording and

Applying a color fluid by spraying, with

a reservoir (2) forming a storage volume for the color fluid, and a pressure control unit (30) connectable to a propellant reservoir (29), the propellant reservoir (29) being attached to a receiving unit (33) of the

Disposable container is arranged or can be arranged,

a piercing element (39) for piercing the propellant reservoir (29) is positionable relative to the receiving unit (33),

which piercing element (39) is movable via a user-actuatable actuator (47) and

a sealing portion (48), with which a by means of the piercing element (39) into the propellant reservoir (29) introduced outlet opening (49) is sealable.

2. disposable container according to claim 1, characterized in that the

Receiving unit (33) has a passage opening (36), in which the piercing element (39) is arranged to be movable in the longitudinal direction thereof,

in particular with respect to the receiving unit (33) sealingly movable

is arranged.

3. disposable container according to claim 2, characterized in that the

Receiving unit (33) has a thread (22), with which the

Propellant reservoir (29) screwed or screwed.

4. disposable container according to claim 2 or 3, characterized in that the

Through opening (36) has a shoulder (37) at which the

Propellant reservoir (29) sealingly abuts when properly arranged.

5. disposable container according to one of the preceding claims, characterized

in that the actuator (47) has a thread and is connected to the piercing element (39) so that the piercing element (39) can be moved relative to the receiving unit (33) via an actuation, in particular rotational actuation of the actuator (47).

6. disposable container according to one of the preceding claims, characterized

in that the receiving unit (33) is fluidically connected to the pressure regulating unit (30). Disposable container according to one of the preceding claims, characterized in that it comprises an attachment (3) on which the

Pressure control unit (30) and / or the receiving unit (33) is / are arranged.

Disposable container according to claim 7, characterized in that the attachment (3) sealingly, in particular with locking elements (17) or a clip connection to the container edge (9) of the container (3) is attached.

A method for pressurizing a disposable container (1), in particular disposable ink containers, comprising a storage volume for a color fluid forming container (2) and a pressure control unit (30), which with a

Propellant reservoir (29) is connected or connectable,

wherein the propellant reservoir (29) is closed in a fuel-tight manner at a

Receiving unit (33) of the disposable package is or is and can be positioned by means of a relative to the receiving unit (33)

Piercing element (39) is pierced,

in that the piercing element (39) is moved in the direction of the propellant reservoir (29) via the user-side actuation, in particular rotational actuation of an actuator (47), and

with a sealing portion (48) the propellant reservoir (29) after done

Puncture impermeable,

wherein the piercing element (39) is subsequently moved away from the propellant reservoir (29), whereby an outlet opening (49) for propellant for

Pressurization of the container (2) is released.

10. The method according to claim 9, characterized in that the

Tapping element (39) by actuation of the actuator (47) from

Propellant reservoir (29) is moved away. 1 1. A method according to claim 9 or 10, characterized in that the

Tapping element (39) by a repeated actuation of the actuator (47) in a the discharge opening (49) of the propellant reservoir (29) sealing position is brought.

12. Use of a container according to one of claims 1 to 8 for paint, varnish, varnish, wood preservatives and similar fluids.