WO2012084166A1

WO2012084166A1 - Dispensing device

Info

Publication number: WO2012084166A1
Application number: PCT/EP2011/006386
Authority: WO
Inventors: Olof KÄLLGREN; Georg Ortner
Original assignee: Linde Aktiengesellschaft
Priority date: 2010-12-22
Filing date: 2011-12-16
Publication date: 2012-06-28
Also published as: EP2654812A1; US20140252029A1; DE102010055745A1; CN103429274A

Abstract

The invention relates to a dispensing device (1) comprising a flexible inner container (3) which is provided with a valve unit (5) for delivering a filling material (4) located in the inner container (3), and an outer container (2), wherein the inner container (3) provided with the valve unit (5) is disposed in a sealed manner in the outer container (2), wherein pressurised gas is provided in order to generate an ejection force for output of the filling material in the intermediate space (8) between the outer container (2) and the inner container (3). The aim of providing such a dispensing device, for which production is simplified and which enables economical production singly or in small quantities and which is improved with regard to the precision of metering of the amount of the filling material discharged, is achieved according to the invention in that in order to generate pressure with pressurised gas the intermediate space (8) between the outer container (2) and the inner container (3) is connected to an external pressure source (10).

Description

Description of the device

The invention relates to a dispensing device with a flexible inner container, which is provided with a valve unit for dispensing a filling material located in the inner container, and an outer container, wherein the inner container provided with the valve unit is sealingly arranged in the outer container, wherein for generating an ejection force for application the filling material is present in the intermediate space between the outer container and the inner container pressurized gas.

Generic dispensing devices, which are also referred to as aerosol containers, are used for dispensing or dispensing of flowable fillers. As contents fragrances or cosmetic products or Körperpflege- and

Cleaning products are used. As a non-exhaustive list of such products to a room fragrance, perfume, cosmetics, hair spray, hair dye, deodorant, foam, such as shaving cream, gel, paint spray, sun or

Skin care products are called.

The direct contact of a propellant with the contents, such as a fragrance or a cosmetic substance, is often undesirable because chemical

Reactions, such as oxidation, can occur. In order to avoid this, located in generic dispensing devices, the contents in a flexible and provided with the valve unit inner container which is mounted in an outer container, wherein the propellant, such as compressed gas or compressed air as compressed gas, in the space between the inner container and the Outer container is located. In such two-chamber systems, the direct contact of the filling with the blowing agent can be avoided.

A generic dispensing device is known from EP 1 622 818 B1.

In known dispensing devices is disadvantageous that when using compressed gas or compressed gas as a propellant, the internal pressure of the propellant and thus the pressure of the propellant in the space in the removal of the Filling material decreases continuously. These reasons for this are that due to the decreasing amount of the filling material in the inner container with increasing extraction time, the blowing agent located in the intermediate space relaxes. In addition, leaks in the field of attachment of the inner container to the outer container leaking propellant, whereby the pressure of the propellant decreases. Due to the decreasing pressure of the blowing agent, it is difficult to control the discharge of the filling material when operating the valve unit. In addition, a very high pressure for the propellant must be used to ensure a complete emptying of the contents.

In addition, results in known, designed as aerosol container two-chamber dispensers a complex production and filling with the contents. During production and filling, the outer container must first be closed with the valve unit, to which the empty flexible inner container is fastened, for example, welded. For this purpose, a special machine is required because of

Outer container before closing with the valve unit of the inner container must first be filled with a compressed gas or compressed gas to a certain form. Subsequently, the actual contents are pressed by the valve unit in the flexible inner container, whereby the final overpressure is achieved in the intermediate space. Due to the introduction of the compressed propellant in the

Outer container in the attachment of the empty inner container in the outer container, whereby the outer container is closed, and then introducing the contents into the inner container, are generic two-chamber

Dispensers with a compressed gas or compressed gas as blowing agent only economically produced at a high number of produced dispensing devices. In addition, requires for producing generic two-chamber dispensing devices with a compressed gas as a propellant required special machine, with the compressed gas can be introduced under a form in the outer container in attaching the valve unit with the inner container in the outer container, the compressed gas, a high investment cost.

The present invention has for its object to provide a generic dispensing device is available, which is simplified in the production and a single production or production of small quantities economically allows and which is improved in terms of metering accuracy of the discharge of the contents.

This object is achieved in that the gap between the outer container and the inner container for pressure generation is connected to pressurized gas with an external pressure source. The connection of the intermediate space between the flexible inner container filled with the filling material and the outer container with an external pressure source makes it possible to maintain a constant, constant pressure of the compressed gas in the entire removal period and thus during the entire removal period of the medium, wherein the flexible inner container collapses To provide space available, whereby the metering accuracy of the discharge over the entire removal time and the total removal period of the medium improves and a high

Dosing accuracy is guaranteed. In addition, the production of a

be simplified according to the invention, since by the

Pressure generation in the space by means of the connection of the gap to an external pressure source during the manufacture of the dispenser no compressed gas or compressed gas must be introduced in the space and the attachment of the empty inner container in the outer container and

if appropriate, the filling of the inner container fastened in the outer container can take place in a pressureless outer container. As a non-pressurized state is to be understood as a state at ambient conditions in which no form is present in the intermediate space. The dispenser according to the invention thus makes it possible by the simplified production without the need for special machines in an economically favorable manner small series with small numbers of

Produce dispensing devices and low investment.

According to a preferred embodiment of the invention, the connection of the intermediate space with the external pressure source via a sealed

Connection connection on the outer container. On the outer container, a sealed connection port can be easily manufactured, which makes it possible to connect the space between the inner container and the outer container after filling the inner container to the external pressure source. According to one embodiment of the invention is for connecting the

Intermediate space with the external pressure source of the outer container at any point, in particular in the region of a bottom or a bottom-side cover, provided with at least one opening. Such an opening can be easily made on the outer container to connect to the external

To allow pressure source. The opening can in this case be produced on the outer container before or after the filling of the inner container. If the opening is made prior to the filling of the inner container to the outer container, a pressure equalization is made possible through the opening to fill the inner container in the pressureless state and without a resulting back pressure in the space.

Such an opening in the outer container for pressure connection to the pressure source and / or as pressure equalization opening for pressureless filling of the inner container can be pressed with little manufacturing effort of at least one pierced hole, at least one perforation, in particular at least one gill-like cheek, or at least one slot can, in particular a plurality of slots, which can be arranged arbitrarily and gills or web-like can be pressed. In this case, for example, two slots can be provided in the outer container, which delimit a pressable web delimited by two essentially parallel slots or are arranged like a gill or star. One or more holes can be easily made by piercing the outer container with a suitable tool such as a needle or a specially shaped punch. A

Damage to the unfilled or filled inner container in the manufacture of the opening or in later use can be avoided if, instead of a simple hole in the outer container, a narrow, short and gas-permeable slot is made. Alternatively, a plurality of closely spaced slots may be arranged at the selected location of the outer container in any pattern, for example web-like or star-shaped. The slot or slots can be gill-like or web-like pressed with a suitable stamp to the

Inner bag in the resulting pressure connection with the external pressure source against intentional or unconscious injuries by a needle or a pen to protect. According to a possible embodiment of the invention, for example, two parallel, preferably 3 mm short slots can be made at a close distance of, for example, 2 mm in the bottom of the outer container, after which the so resulting bridge-like bridge is slightly pressed and so forms the pressure connection opening and / or pressure equalization opening.

According to an advantageous development of the invention, a sealing flange, in particular a circular groove, is formed on the outer container for fitting a sealing device of the connecting connection. With such a

Sealing flange for a Dichtuhgseinrichtung, such as an O-ring, the connection port, the sealing of the external pressure source for

Environment can be improved in a simple way. The sealing flange can be made in this case, for example, with a suitable stamping tool in a simple manner.

The connection connection is preferably formed by means of a hollow needle. With a hollow needle can be easily connected to the gap with the external pressure source. In addition, it is easily possible to pierce the outer container with the hollow needle to make the opening for connecting the gap with the external pressure source.

With particular advantage, according to a preferred embodiment of the invention by means of the external pressure source of the gap over the removal time of the contents of the inner container with a constant constant pressure

applied. By keeping constant the pressure of the compressed gas or the compressed gas in the intermediate space and thus an isobaric state in the intermediate space during the entire removal time of the filling material is made possible to meter the discharge over the entire removal time of the filling exactly.

According to an advantageous embodiment of the invention, the metering of the discharge of the filling material by a time control, in particular a

electronic time control, the valve unit. Due to the constant pressure of the compressed gas or the compressed gas in the space over the

Extraction time of the filling material and thus the isobaric state in the intermediate space, regardless of the filling amount of the flexible inner container, it is possible to dose the Austragsmenge of the contents over the opening period of the valve unit exactly. By appropriate adjustment of the opening time of the valve unit thus the removal amount of the filling material can be accurately metered. This will be it allows the product to be completely and exactly the same over the removal time

To take portions.

If the valve unit can be activated by means of an electronic control unit, it is possible in a simple manner to set the metered quantity of the discharged contents by adjusting the opening duration of the valve unit.

According to an advantageous embodiment of the invention, a holding device is provided, wherein when inserted in the holding device, filled with filling device, the connection connection can be produced. The sealed connection terminal for connecting the gap to the external one

Pressure source can be easily filled after inserting the

Dispensing device and thus produced in a used in a holding device and filled dispensing device.

Provided that the sealed connection connection by inserting the

Dispensing device can be produced in a holder device, the manufacturing costs for the sealed connection of the gap with the external pressure source can be further simplified. In conjunction with a example at the

Holding device arranged hollow needle can when filling the filled

Dispensing device are easily pierced in the holding device of the outer container to make the connection of the gap with the external pressure source. In addition, when inserting the filled dispenser in the holding device of the outer container in a simple manner to the

Sealing device are pressed to the sealed

Connect connection.

The holding device can be formed according to a preferred embodiment of the invention by an additional holder, which may be provided with the connection port, in which a closed or one with the at least one

Opening provided outdoor container, which is provided with the filled inner container, can be used.

According to an alternative embodiment of the invention, the holding device is designed as a lid, in particular bottom-side lid, of the outer container. The one with The outer container provided with the filled inner container is thus closed when placed on the holding device designed as a lid, wherein preferably at the same time the connection of the intermediate space is made to the external pressure source.

In a particularly advantageous embodiment of the invention, the outer container is formed as an aerosol container with a cover-side opening and a bottom, wherein provided by the lid-side opening of the valve unit with the

Inner container inserted into the outer container and the inner container can be sealingly attached to the lid-side opening to the outer container, wherein the outer container with at least one pressure equalization opening for the

Intermediate space is provided for pressureless filling of the inner container. Such an outer container, which is designed as a so-called standard aerosol container, in which the empty inner container with the valve unit is inserted via the cover-side opening and is sealingly fastened to the cover-side opening of the inner container before filling, has a low construction cost and can in a simple manner be provided with a pressure equalization opening, with the inner container in the pressureless state, ie at ambient conditions, wherein in the intermediate space during filling of the inner container no form is generated, can be filled. The filling of the inner container may be due to the pressure equalization opening

For example, with a simple hand pump on the valve unit of the

Inner container done. Such an aerosol container may be formed as a one-piece, for example deep-drawn container with an integrally formed bottom. In addition, such an aerosol container may be composed of a casing part and a cover part as well as a bottom part. The production of a dispensing device according to the invention is further simplified when using such an aerosol container.

Preferably, the pressure equalization opening is arranged in the bottom of the outer container. In the bottom of an aerosol container, a pressure equalization opening or more pressure equalization openings for filling the inner container at

Environmental conditions are easily produced.

If, according to an expedient development, the at least one

Pressure equalization opening is formed by the at least one opening, by means of which the Connection of the space with the external pressure source of the outer container can be produced, the construction cost is further simplified because the aerosol container no separate openings, such as holes, perforations or slots is to produce, on the one hand the function of the pressure equalization port and

on the other hand, to achieve the function of opening for connection to the external pressure source.

Particular advantages arise when using a dispensing device according to the invention as a room fragrance dispenser. Due to the isobaric states in the

Interspace during the extraction time of the formed as a fragrance filling it is possible to deliver over the entire removal time by a timing of the opening duration of the valve unit exact and consistent amounts of the fragrance to the room air. The invention further relates to a dispensing system having a dispensing device formed by a flexible inner container provided with a valve unit for dispensing a filling material in the inner container and an outer container, the inner container provided with the valve unit being sealingly fixed in the outer container , And with an external pressure source, which is for generating an ejection force of the in the flexible inner container filling material by means of a sealed connection connection to the outer container with the

Gap between the outer container and the inner container for

Pressure generation is connected to pressurized gas. The one of the

Outer container with the filled inner container existing cartridge can be made in a simple manner by the simplified installation of the provided with the valve means inner container in the outer container in the unpressurized state and the filling of the inner container in the unpressurized state. In particular, supply or refill cartridges of the dispensing system according to the invention, in which the pressure in the space for ejecting the contents of the cartridge from an external pressure source is generated and over the entire sampling period a constant pressure in the space is produced, can hereby produced at low volumes in an economically favorable manner become.

Preferably, the dispensing system comprises a holding device, by means of which the sealed connection connection between the external pressure source and the Interspace can be produced. In such a holding device, the outer container provided with the filled inner container can be easily inserted and pressed against the connection port to produce the sealed connection port.

The invention further relates to a method for producing a dispenser having a flexible inner container provided with a valve unit for dispensing a filling material located in the inner container, and an outer container, wherein for generating an ejection force of the filling material in the space between the outer container and the inner container pressurized gas is used. The above-mentioned object to provide a simplified in the manufacture dispensing device is achieved by the method side, that with the

Valve unit provided flexible inner container introduced through an opening in the outer container and with unpressurized space between the inner container and

Outer container is attached to the outer container, in particular pressure-tight manner, then the inner container is filled via the valve unit with the contents and then a sealed connection port on the outer container for connection of the outer container is made with an external pressure source, with the gap set under a constant pressure becomes. By the inventive compound of the gap between the filled

Inner container and the closed outer container with an external pressure source for generating the ejection force for the present in the inner container contents, the production of a dispensing device according to the invention is simplified, since the insertion and fastening of the valve unit provided with the inner container in the outer container without prior introduction of pressurized gas in the intermediate space and thus can take place at atmospheric space under ambient conditions. This makes it possible to manufacture a dispensing device according to the invention without complicated special devices and special machines, whereby preferably small series of dispensing devices can be produced with a low capital expenditure.

According to a preferred development of the method, the filling of the inner container with filling material is carried out at a pressure-free intermediate space. The filling of the inner container is thus carried out by a connection of the gap with the environment at ambient conditions and thus in the unpressurized state without Construction of a back pressure in the intermediate space. By this type of filling of the inner container, the production of a dispensing device according to the invention is further simplified, since the filling of the inner container without consuming

Special devices and special machines can be done with a trained example as a hand pump filling.

The pressureless filling of the inner container without counter-pressure can be achieved if at least one pressure equalization opening is made on the outer container before or during the filling of the inner container, with which the space between the inner container and outer container is connected to the environment.

According to a preferred development of the invention, the connection connection is formed on a holding device for the outer container, wherein the connection of the intermediate space with the external pressure source is established by inserting the outer container into the holding device. Thereby, the preparation of the connection of the gap with the external pressure source by means of the sealed

Connection connection with little effort and in a simple way

Insertion of the filled outer container in the holding device allows. Further advantages and details of the invention will be described with reference to the

Schematically illustrated embodiments illustrated embodiments. This shows

Figure 1 shows a first embodiment of an inventive

Dispensing device in a longitudinal section,

Figure 2 shows the outer container of an inventive

Dispenser

3 shows the outer container with attached and filled inner container,

Figure 4 shows a holding device of an inventive

Dispenser

Figure 5 shows a second embodiment of the invention at Insertion in a holding device,

Figure 6 shows a third embodiment of the invention

Figure 7 shows the outer container of Figure 6 with attached and filled

Inner container when inserting into a holding device and

Figure 8 is a plan view of the bottom of an outer container of the figures

6 and 7 in an enlarged view.

1 shows an inventive dispensing device 1 is shown, which consists of an outer container 2 and a arranged in the outer container 2 flexible inner container 3, which is filled with filling material 4, for example, a perfume. The dispensing device 1 according to the invention is designed, for example, as a room fragrance dispenser.

The inner container 3, which is formed, for example, by a flexible film bag, is provided with a valve unit 5 at the upper area. The valve unit 5 can be formed by an aerosol valve, which is preferably welded to the flexible inner container 3.

For fastening the inner container 3 provided with the valve unit 5 in the outer container 2, the valve unit 5 extends through an opening 6 in a cover-side region of the outer container 2, wherein the valve unit 5 is secured pressure-tight in the outer container 2 in the region of the opening 6. The attachment can be done for example by means of a crimp connection.

At the bottom region of the outer container 2, a cover 7 is provided which is sealingly insertable in the cylindrical portion of the outer container 2 and pressure-tight fastened.

To produce an ejection force, by means of which the filling material 4 located in the inner container 3 can be dispensed with the valve unit 5 open, is in the

Interspace 8 between the filled inner container 3 and the outer container 2 compressed gas as compressed gas, such as compressed air present. According to the invention, the intermediate space 8 communicates with an external pressure source 10. The external pressure source 10 may for example by a

Compressed gas container, in particular a gas cylinder, or a compressor are formed.

The connection of the gap 8 with the external pressure source 10 by means of a sealed connection port 11 of the outer container 2. Der

In the present exemplary embodiment, connection port 11 is formed by an opening DV as a pressure connection opening in outer container 2, preferably in bottom lid 7, and a hollow needle 12 communicating with pressure source 10, which extends through opening DV in bottom lid 7 of outer container 2. and a sealing device 13, for example a rubber seal. The opening DV can in this case by piercing the outer container 2 with the

Hollow needle 12 are formed as a pierced hole.

The hollow needle 12 is connected via a connecting line 14 with the external pressure source 10 in connection. The dispensing device 1, which consists of the outer container 2 and the filled

Inner container 3 is made and forms a cartridge K, provides with the external

Pressure source 10 is a delivery system 15.

According to the invention with the external pressure source 10, the pressure of the in the

Interspace 8 located compressed compressed gas over the entire

Extraction duration of the filling material 4 and thus kept constant regardless of the level of the filling material 4 in the flexible inner container 3.

For metering the discharge amount is the valve unit 5 in the illustrated

Embodiment with an electronic control unit 17 in conjunction, which also belongs to the dispensing system 15. With the electronic control unit 17, the opening time of the valve unit 5 can be set and controlled. In

Connection with the constant pressure in the intermediate space 8 can thus be removed by controlling the opening time of the valve unit 5 over the removal duration of the filling material 4 a precisely metered and constant discharge rate. In FIGS. 2 to 4, the manufacturing process of an inventive device is shown

Dispensing device 1 illustrates. FIG. 2 shows the outer container 2, in which the inner container 3 provided with the valve unit 5 is in the unpressurised state

Ambient conditions can be inserted via the bottom-side opening Ö and attached to the cover-side opening 6, for example by a

Crimp connection between the valve unit 5 and the outer container 2 in the region of the opening 6. Then - as shown in Figure 3 by the Ff eil - via the valve means 5 of the flexible inner container 3 are filled with the contents 4. The bottom-side opening Ö of the outer container 2 allows pressure equalization, so that the filling of the inner container 3 in the space 8 no back pressure is generated. The provided with the filled inner container 3 outer container 2 thus forms a cartridge K.

According to the figure 4 forms the bottom-side cover 7, with the

Connection terminal 11 is provided and is in communication with the external pressure source 10, a separate holding device 20, in which the provided with the filled inner container 3 outer container 2 (cartridge K according to Figure 3) can be used. In this case, a seal of the gap 8 is further prepared.

Alternatively, according to FIG. 5, in which a further embodiment of a dispensing device 1 according to the invention is shown, which is open at the bottom

Outer container 2 are sealed pressure-tight with the bottom-side cover 7 before filling the inner container 3. When filling the flexible inner container 3 with the contents 4 creates a certain pressure in the gap 8, which is not sufficient to remove the contents 4, in particular completely remove. According to FIG. 5, the cartridge K formed by the outer container 2 and the filled inner container 3 is passed through the bottom-side cover 7

locked.

The holding device 20 is formed according to the figure 5 as an additional external or separate holder 25, in which provided with the filled inner container 3 Outer container 2 can be used. The production of the

Connection terminal 11 can in this case take place during insertion of the outer container 2 in the holder 25 by the outer container 2 is pierced, for example, on the bottom-side cover 7 of the arranged on the holder 25 hollow needle 12. Alternatively, the hollow needle 12 can be pushed laterally through the wall of the outer container 2 to an alternatively laterally disposed, sealed

Connect connection.

In the embodiment of Figure 5, it is alternatively possible, a

Pressure equalization opening DA, for example, in the bottom lid 7 before

Filling the inner container 3 to produce to achieve a filling of the inner container 3 without generating a back pressure in the unpressurized state. The

Pressure compensation opening DA can hereby continue to have the function of the opening DV according to FIG. 1 in order to produce the sealed connection connection 11 with the external pressure source 10 when the outer container 2 provided with the filled inner container 3 is inserted.

In the figures 6 to 8 a preferred embodiment of the invention is shown, according to which the outer container 2 is formed by a standard Aersolbehälter closed, which is provided with a deep-drawn and / or molded bottom-side cover 7 and an opening 6 in a lid-side region. The bottom-side cover 7 can be manufactured in one piece in one operation with the outer container 2. Alternatively, the lid 7 is firmly connected to the outer container 2 before filling and closing. About the opening 6 of the provided with the valve unit 5 empty inner container 3 can be inserted into the outer container 2. In the region of the opening 6 is also the pressure-tight attachment between the inner container 3 and outer container 2, for example by means of a

Crimp. As shown in FIGS. 7 and 8, the outer container 2 designed as an aerosol container preferably has a slot 41 in the region of the bottom-side cover 7, the one limiting side of which is formed in the illustrated embodiment into a gill-like cheek 40. The pressure equalization opening DA thus formed thus enables the filling of the inner container 3 via the valve unit 5 without the intermediate space 8 receiving an overpressure. The cheek 40 continues to fulfill the Function of the pressure connection opening DA for connecting the gap 8 to the external pressure source 10th

Instead of one or more gill cheeks 40 or equivalent

Perforations forming one or more openings DA may be made on the

Outer container 2 also at least one hole are made to achieve the function of the pressure equalization port DA for pressureless filling of the inner container 3 and the function of the opening DV for connection to the external pressure source 10. In addition, one or more slots can be introduced into the outer container 2 to form at least one opening that combines the function of the pressure compensation opening DA for pressureless filling of the inner container 3 and the function of the opening DV for connecting the gap 8 to the external pressure source 10. As such slots, for example, two short, parallel and spaced apart cuts can be introduced into the outer container, which limit a bridge-like impressionable web or more such webs. In addition, a plurality of slots in any pattern, for example, star-shaped, can be mounted in the outer container to press one or more

Openings as pressure connection opening DV for connecting the gap 8 with the external pressure source and as a pressure equalization port DA for pressureless filling of the inner container 3 to achieve.

On the outer container 2, a sealing flange 45 is further formed, which is formed for example by a convex, annular groove surrounding the cheek 40 and thus the pressure connection opening DV. The sealing flange 45 serves to bear against the sealing device 13, for example an O-ring 17, of the connection connection 11 in order to achieve an optimum seal in the region of the connection connection 1. Alternatively, the sealing flange 45 may be concave and a

pick up the appropriate sealing ring to optimize the seal.

The sealing flange 45 can already be produced in the production of the bottom cover 7 or in the production of the outer container 2, provided that the bottom cover 7 is already firmly connected to the outer container 2. Alternatively, it is possible to Sealing flange 45 by a suitable stamping tool, which is introduced beispeisweise via the opening 6, subsequently form at the bottom 7 of the outer container 2 formed as a standard aerosol container. In this operation, one can also expediently at the same time in a single operation with a corresponding punching / embossing tool, the opening DV and / or the

Pressure equalization opening DA generate the connection with the external

Pressure source 10 is used.

After closing the outer container 2, according to Figure 6 with the valve unit 5 and welded thereto, flexible and rolled inner container 3, this can be filled via the valve unit 5 - as indicated in Figure 7 by the arrow - with the contents 4. The thus-finished standard cartridge SK can now be inserted into the holding device 20 to produce the sealed connection terminal 11.

The holding device 20 of Figure 7 is analogous to Figure 5 as an additional external or separate holder 25 is formed, in which the standard cartridge SK can be used. When inserting the standard cartridge SK in the holder 25, the sealing device 13, for example, the O-ring 17 is pressed against the sealing flange 45, so that via the opening DV and the terminal 12 of the sealed connection port 11 between the pressure source 10 and the gap 8 is produced.

FIG. 7 also shows the control unit 17 for timing the valve unit 5 that belongs to the dispensing system 15 in addition to the holding device 20 and the standard cartridge SK.

With the dispensing device 1 according to the invention and its manufacture a number of advantages are achieved.

With the dispensing device 1 according to the invention inexpensive storage / Nachfüllkartuschen K can be produced for filling, which make it possible to remove with gas pressure in the space 8 exactly metered amounts of the filling material 4 through a valve unit 5. The accuracy of the dosage of the discharge of the Filling material 4 is ensured in the microgram or microliter and below by the electronic control unit 17.

Due to the constant pressure of the external pressure source 10 of the dispensing system 15 is achieved that the gap 8 of the cartridge K is always under exactly the same pressure during the entire removal period of the filling material 4. The

Discharge amount can be accurately controlled by the opening time of the valve unit 5 due to the constant over the removal duration pressure in the space 8.

The dispensing device 1 according to the invention can be produced in a simple manner in which an empty inner container 3 with attached valve unit 5 is first mounted without pressure in the outer container 2 and thus under ambient conditions, for example by a crimp closure. Subsequently, the filling of the flexible inner container 3 with the contents 4 through the valve unit 5. According to FIG. 5, with a cartridge K sealed by the lid 7, a certain overpressure in the intermediate space 8 is created during filling of the inner container 3, which, however, is not sufficient remove the entire content of the contents 4 again, in particular with exactly the same discharge rates. If in this case at least one pressure equalization opening DA is already formed in the bottom cover 7 (FIG. 7), the filling of the inner container 3 can take place even without back pressure in the intermediate space 8, for example by means of a hand pump as filling device. On a standard aerosol container as an outer container 2, the opening DV, as

Pressure equalization opening DA is used during filling of the inner container 3, are made easily by one or more perforations or slots.

In order to build up the necessary, constant pressure in the space 8 of the cartridge K, the cartridge K is placed in a holder device 20. Upon insertion of the cartridge K in the holder device 20 or subsequent to the insertion of the kart search K in the holder device 20, the gap 8 is connected by means of the sealed connection port 11 to the external pressure source 10. If the bottom cover 7 does not yet have an opening DV, this can hereby be pierced by the hollow needle 12 and sealed by means of the sealing device 13. Through the at least one opening DV of the gap 8 is connected to the external pressure source 10 and with the required, over the entire

Removal period constant pressure supplied as soon as you open the pressure source 10.

Due to the constant and constant pressure in the intermediate space 8, the filling material 4 can be removed from the flexible inner container 2 completely in exactly equal portions by the opening time of the valve unit 5 is precisely set and controlled, for example by means of the electronic controller 17th

The provided with the filled inner container 3 outer container 2, which forms the cartridge K, can be removed at any time from the holder device 20, wherein the pressure built up in the gap 8 through the opening DV or the

Pressure equalization port DA can escape.

Both a provided with a pressure equalization port DA original cartridge, as well as a removed cartridge K are not under pressure and are therefore safer in storage. This allows refill cartridges in an airplane

be transported without being considered as dangerous goods.

The attachment of the provided with the valve unit 5 inner container 3 in the outer container 2 and the filling of the flexible inner container 3 with the contents 4 at unpressurized gap, i. at ambient conditions without overpressure or form, allows in the inventive dispensing device 1 a simplified production without special machines. This makes it possible to produce small quantities of the dispensing device 1 according to the invention in a cost effective manner and with low investment requirements.

Claims

claims

Dispensing device comprising a flexible inner container, which is provided with a valve unit for dispensing a filling material located in the inner container, and an outer container, wherein the inner container provided with the valve unit is sealingly arranged in the outer container, wherein for generating a

Exhaust force for discharging the filling material in the space between the outer container and the inner container under pressure gas is present, characterized in that the intermediate space (8) between the

Outer container (2) and the inner container (3) for generating pressure with gas under pressure to an external pressure source (10) is connected.

Dispensing device according to claim 1, characterized in that the

Connection of the intermediate space (8) with the external pressure source (10) via a sealed connection port (11) on the outer container (2).

Dispensing device according to claim 1 or 2, characterized in that for the connection of the intermediate space (8) with the external pressure source (10) of the outer container (2) at an arbitrary position, in particular in the region of a bottom (7) or a bottom cover (7). , with at least one opening (DV) is provided.

Dispensing device according to claim 3, characterized in that the opening (DV) of at least one pierced hole or at least one perforation or at least one slot (41) is formed, which may be gilled like a pushed, in particular a plurality of slots, wherein a plurality of slots are arranged arbitrarily and can also be indented gill-like or web-like.

Dispensing device according to one of Claims 2 to 4, characterized in that a sealing flange (45), in particular a circular groove, is formed on the outer container (2) to bear a sealing device (13) of the connection connection (11).

6. Dispensing device according to one of claims 2 to 5, characterized in that the connection connection (11) by means of a hollow needle (12) is formed.

7. Dispensing device according to one of claims 1 to 6, characterized in that by means of the external pressure source (10) of the intermediate space (8) via the

Extraction time of the filling (4) of the inner container (3) with a

Constant constant pressure is applied.

8. Dispensing device according to one of claims 1 to 7, characterized in that the dosage of the discharge of the filling material (4) by a timing of the valve unit (5).

9. Dispensing device according to one of claims 1 to 8, characterized in that the valve unit (5) by means of an electronic control unit (17) is controllable.

10. Dispensing device according to one of claims 1 to 9, characterized in that a holding device (20) is provided, wherein in the holding device (20) inserted with filling material (4) filled dispensing device (1) of

Connection connection (11) can be produced.

11. Dispensing device according to one of claims 1 to 9, characterized in that the sealed connection connection (11) by inserting the

Dispensing device (1) in the holding device (20) can be produced.

12. Dispensing device according to claim 10 or 11, characterized in that the holding device (20) as a cover (7), in particular bottom-side cover, of the outer container (2) is formed.

13. Dispensing device according to claim 10 or 11, characterized in that the holding device (20) as an additional holder (25) is formed, which can be provided with the connection terminal (11).

14. Dispensing device according to one of claims 1 to 13, characterized in that the outer container (2) as an aerosol container with a cover-side opening (6) and a bottom (7) is formed, wherein introduced through the lid-side opening (6) of the valve unit (5) inner container (3) in the outer container (2) and the inner container (3) on the lid-side opening ( 6) can be sealingly fixed to the outer container (2), wherein the outer container (2) with at least one pressure equalization opening (DA) for the intermediate space (8) for counter-pressure filling of the inner container (3) is provided.

15. Dispensing device according to claim 14, characterized in that the

Pressure equalization opening (DA) in the bottom (7) of the outer container (2) is arranged.

16. Dispensing device according to claim 14 or 15, characterized in that the at least one pressure equalization opening (DA) of the at least one opening (DV) is formed. 17. Use of a dispensing device (1) according to one of the preceding

Claims as a room fragrance dispenser.

18. Delivery system with a dispensing device (1), which is a flexible

Inner container (3) provided with a valve unit (5) for dispensing one in the

Inner container (3) located filling material (4) is provided, and an outer container (2) is formed, wherein the valve unit (5) provided with the inner container (3) in the outer container (2) is sealingly secured, and with an external pressure source ( 10) for generating an ejection force of the in the flexible inner container (3) located filling material (4) by means of a sealed connection port (11) on the outer container (2) with the gap (8) between the

Outer container (2) and the inner container (3) for generating pressure with pressurized gas is connectable.

Dispensing system according to claim 18, characterized in that the

Dispensing system (15) comprises a holding device (20), by means of which the sealed connection connection (11) between the external pressure source (10) and the intermediate space (8) can be produced.

20. Dispensing system according to claim 18 comprising an electronic control unit (17) according to claim 9 for controlling the valve unit (5) and / or a Holding device (20) according to one of claims 10 to 13 for inserting a filled with filling material (4) dispensing device (1).

21. A method for producing a dispenser with a flexible

Inner container, which is provided with a valve unit for dispensing a located in the inner container contents, and an outer container, wherein the

Producing an ejection force of the filling material in the space between the outer container and the inner container pressurized gas is used, characterized in that the valve unit (5) provided with the flexible inner container (3) via an opening in the outer container (2) inserted and at pressure-free space (8) between the inner container (3) and outer container (2) is attached to the outer container (2), in particular pressure-tight, then the inner container (3) via the valve unit (5) with the filling material (4) is filled and then a sealed connection port (11) is formed on the outer container (2) for connection of the outer container (2) to an external pressure source (10) with which the gap (8) is placed under a constant pressure.

22. The method according to claim 21, characterized in that the filling of

Inner container (3) with filling material (4) is carried out at a pressure-free gap (8).

23. The method according to claim 22, characterized in that on the

External container (2) for pressureless filling of the inner container (3) before or during the filling of the inner container (3) at least one

Pressure equalization opening (DA) is produced.

24. The method according to any one of claims 21 to 23, characterized in that the connection terminal (11) on a holding device (20) for the

Outer container (2) is formed, wherein the connection of the intermediate space (8) with the external pressure source (10) by inserting the outer container (2) is made in the holding device (20).