AT522213B1 - Container and set of dispenser and container - Google Patents

Abstract

A container (5) containing pumpable medium with an opening which is closed by an insert (16) in which a suction opening (24) can be pushed through by means of a suction nozzle (3), the insert (16) at least two, preferably one another overlapping areas (21, 22) of different hardness.

Description

description

The invention relates to a pumpable medium containing container with an opening which is closed by an insert in which a suction port can be pushed through by means of an intake, the insert having at least two, preferably overlapping, areas of different hardness, and wherein the harder portion of the insert rests against the opening of the container. The invention further relates to a set comprising a dispenser for a pumpable medium, with an output device arranged in a dispenser part, preferably in a housing upper part, on which a suction nozzle is provided, and the container containing the pumpable medium.

From DE 29920517 U a soap dispenser is known which has a soap container with a neck into which an insert made of a corrosion-resistant metal that prevents nucleation, for example stainless steel, is glued. The insert has a central bore into which an output unit with a pump is pressed, so that a tight fitting or. Press fit is formed. A suction port of the pump protrudes down into the medium to be sucked in. A groove is machined into the wall of the bore, which represents a ventilation channel after the pump has been inserted. Both the container and the dispensing unit are intended for longer periods of use, so that the dispensing unit can be removed from the insertion hole in order to refill soap.

Instead of refilling the pumpable medium from a larger supply in the dispenser container, it is easier to use refills, especially in terms of handling, ie disposable containers filled with the medium that are attached to the dispenser part and exchanged for a new container after emptying become. The refill containers are provided with a tight seal that is opened or removed before the container is attached to the housing. After establishing the flow connection between the pump arranged in the housing and the medium in the container, the dispenser is ready for operation again.

From DE 102005029746 a container of the type mentioned is known. The container is provided in particular as a refill for an atomizer and has an insert in the container opening which is closed gas-tight on the top by a cover or seal. At the inner end of the insert there is arranged a sealing element which can be pierced by the intake port and which, after the perforation, hugs the intake port in a sealing manner. Due to the distance between the top cover and the sealing element located on the inside, an excessively long path is required in order to establish the flow connection between the medium in the container and a dispensing device.

EP 3172146 shows a break seal for closing an opening of a container containing a medium and a container with such a break seal. The break seal has a central area which can be pierced by an intake connector and which is weakened by radial notches.

The invention has now set itself the task of creating a container of the type mentioned, which requires only a very short insertion path for the intake port to perforate the insert, and is therefore also suitable as a refill for a set, which has a dispenser with a dispenser.

In a container according to the invention it is therefore provided that the insert has at least two, preferably superimposed, areas of different hardness, the harder area of the insert rests against the opening of the container, and the softer area covers at least part of the suction opening, that the harder area has properties that are matched to support the softer area when piercing the insert, and that the softer area has properties that are matched to a sealing function for the intake manifold.

By eliminating a distance between the two areas of different

Hardness, the path that the intake port has to cover to pierce the intake opening is limited to the thickness of the two areas lying on top of one another. In a preferred embodiment it is provided that in the harder area of the insert at least part of the suction opening is recessed and covered by the softer area. It is preferably provided that the suction opening comprises a slot, the edge of which forms a shear edge, along which the softer area is supported by the harder area when it is cut through by the suction connector. The support of the softer area prevents the softer area from stretching in the case of a blunt end of the suction nozzle and turning inwards so that the suction opening is not pierced.

In a preferred embodiment, which is particularly suitable for an intake with a circular cross-section, it is provided that the slot is C-shaped and the inner shear edge is formed on a removable material bridge of the harder area. Depending on the brittleness of the material in the harder area, the material bridge can be bent downwards or broken off. The width of the C-shaped slot can be between 0.2 and 1.5 mm, in particular a slot width of 0.37 mm has proven itself.

The harder area is preferably made of a classic hard plastic, for example polypropylene, polyethylene, or a similar material. Materials for the softer range preferably have a Shore hardness of 30 to 90 Shore A, in particular 50 Shore A. In a preferred embodiment, it is provided that the insert is formed from a 2K sealing material that comprises a hard component and a soft component that make up the harder and softer area.

In a further preferred embodiment, in which the container is dimensionally stable, a ventilation channel is provided, into which a valve is inserted. The ventilation channel only extends through the harder area of the insert if the softer area around the ventilation channel is left open. The valve can be, for example, a duck bill valve or the like.

Due to the very short path required for piercing the suction opening, a bayonet lock can be used to connect the container to a dispenser part. A further preferred embodiment therefore provides that the container has a neck on which elements of a bayonet lock are provided on the outside and the insert on the inside. To reach the path, in a first embodiment elements of the bayonet lock can each have an axially attracting web with a trough ending at a stop, the transition of which to the web forms an opening resistance. In this way, the bayonet lock engages when the stop is reached and cannot accidentally open by itself, but rather has to be turned deliberately while overcoming the opening resistance. “Axially attractive” is understood to mean that the web extending in the circumferential direction has a bevel at least at the beginning, so that when the bayonet lock is closed, the container edge is pressed against the dispenser part, a seal preferably arranged between them being compressed.

In a second embodiment, a rib arranged parallel to the stop can be provided in front of a stop of the bayonet catch on the neck of the container, after which there is also an opening resistance.

A set according to the invention comprises a dispenser for the pumpable medium, which has a dispensing device arranged in a dispenser part, preferably in an upper housing part, with a suction nozzle, and the exchangeable container containing the pumpable medium, which is preferably also provided with a removable cap is. When the container is attached to the dispenser part, the suction nozzle pierces the insert, which consists of a sealing material. This surprisingly simple solution is based on the knowledge that the container opening must be sealed both before and during use in the dispenser, namely as a refill with a closure cap and after the container has been attached to the dispenser part, for example to the upper part of the housing, in relation to the in Dispenser arranged pump. Different combinations are possible depending on the type of container

(dimensionally stable or compressible), depending on the type of pump (manually or motorized), etc., and that an insert made of sealing material can be optimally matched to the different requirements.

A preferred embodiment provides that the insert is formed from a 2K sealing material, and an area in contact with the container consists of a first, harder component, the properties of which are matched to a hold in the container, and one that takes over the seal Area consists of a second, softer component, the properties of which are matched to a sealing function. In this embodiment in particular, a first sealing zone can be formed from the second, softer component of the insert, which is assigned to the suction opening, and optionally a second sealing zone can be formed which encloses a ventilation channel required for a dimensionally stable container. Both sealing zones of the second, softer component of the insert are preferably arranged concentrically.

The ventilation of a dimensionally stable container can of course take place in any known manner, it is advantageous if the ventilation channel runs through the insert, since in this case it is covered together with the suction opening by the closure cap. After the container has been arranged on the dispenser part, it must be possible to ventilate the container so that only the sealing zone assigned to the suction opening can fulfill its function. Therefore, in a first embodiment, the second sealing zone preferably projects upwards over the container, thereby sealing against the attached cap and, after the container has been attached, is functionless at a distance from the underside of the discharge device so that the ventilation channel remains free.

After the closure cap has been removed, the container can be attached to the dispenser part, the suction nozzle of the dispensing device penetrating into the suction opening. The first sealing zone of the second, softer component of the insert nestles around the intake port and thereby connects it to the container in a sealing manner.

The invention will now be described in more detail with reference to the figures of the accompanying drawings. Show it:

Fig. 1 is a view of a set according to the invention, wherein the container is attached to an upper part of the housing,

[0020] FIG. 2 individual parts of the container with closure cap,

3 shows a longitudinal section through the connection area between the container and the upper part of the housing,

4 shows an enlarged detail of area A in FIG. 3, [0023] FIG. 5 shows the detail from FIG. 4 with a closure cap instead of the upper part of the housing, FIG. 6 corresponds to FIG. 2 with individual parts of a second embodiment of the container ,

7 shows a longitudinal section through the connection area between the second embodiment of the container and the upper part of the housing,

8 shows an enlarged detail of area A in FIG. 7,

9 shows the detail from FIG. 8 with a closure cap instead of the upper part of the housing, and FIG

FIG. 10 shows an enlarged plan view of the insert in the second embodiment of the container corresponding to FIG. 6.

A set according to the invention has a dispenser for a pumpable medium, of which an upper housing part 1 is shown as a dispenser part in FIG. 1, and at least one container 5, primarily intended as a refill, in which the medium to be dispensed, for example soap , Gel, cream, disinfectant, etc. is included. The container 5 is connected to the upper part 1 of the housing by means of a bayonet catch 9 (FIG. 3). The upper housing part 1 can, if

the container 5 lies within the outer contours of the upper housing part 1, be supplemented by a lower part, not shown, in the manner of a UÜberopfes or the like, which has, for example, an improved standing surface, engagement elements for a wall bracket or decorative elements.

The dispenser part contains an output device 2 for the medium contained in the container 5, which has for example a sensor-controlled, motor-driven peristaltic pump or the like when operated without contact and, for example, a reciprocating pump when operated manually. However, this is of subordinate importance for understanding the invention.

The dispensing device 2 has a suction nozzle 3, which protrudes on the underside of the upper housing part 1 and is flow-connected to a riser pipe 20 in the interior of the container 5. The container 5 comprises a cylindrical neck 6 in which an insert 16 is arranged, from which the riser pipe 20 protrudes downward. The insert 16 comprises two areas 21, 22 of different hardness and is explained in more detail below. Preferred materials for the harder area 21 are classic hard plastics, for example polypropylene, polyethylene, or similar materials. Materials for the softer area 22 preferably have a Shore hardness of 30 to 90 Shore A, in particular 50 Shore A. The insert 16 preferably consists of a two-component sealing material.

On the outside of the neck 6, two or four container-side elements of the bayonet lock 9 are formed. This includes a web 11 extending approximately in the circumferential direction up to a stop 14, which has at least one insertion bevel and merges into a trough 13 ending at the stop 14.

On the upper housing part 1, housing-side elements 17 of the bayonet lock 9 are provided, in particular cylindrical knobs or the like. When the container 5 is attached to the upper housing part 1 and then rotated about the longitudinal axis, the elements 17 on the housing side pass under the webs 11 and the container 5 is pressed upwards against the upper housing part 1 due to the insertion slope, the seal between the suction nozzle 3 and the suction opening of the insert 16 takes effect.

In order to avoid accidental opening of the bayonet lock 9, an opening resistance is formed, which is achieved, for example, by the transition between the trough 13 and the web 11 and / or by a rib 15 formed parallel to the stop 14. This means that the container 5 noticeably overcomes an obstacle when locking or opening the bayonet catch 9. FIG. 2 also shows a closure cap 7 for the container 5, which has the same projections or knobs as the elements 17 of the upper housing part 1 on the housing side. The container 5 can have any cross-sectional shape to which an optionally provided overpot is adapted.

As mentioned above, the insert 16 consists in particular of a 2K sealing material, wherein the first, harder area 21 for connection to the inside of the neck 6 comprises a support ring 28 and a central sleeve 29 to which the riser pipe 20 into the interior of the container 5 is attached. The second component of the sealing material of the insert 16 forms the softer area 22, which comprises two sealing zones 26 and 27. The first sealing zone 26 encloses the resulting suction opening 24 and seals against the inserted suction connector 3 of the dispensing device 2, as shown in FIG. 4.

In the embodiment according to Figures 2 to 5, the second sealing zone 27 is provided concentrically to the suction opening 24 on the upper side of the softer area 22 and protrudes above the container 5 upwards. The second sealing zone 27 is provided at a distance from the first sealing zone 26, with a ventilation channel 23 running through the insert 16 in between.

From Fig. 4 it can be seen that when the container 5 is connected, the second sealing zone 27 is at a distance 25 from the discharge device 2 and therefore does not have any sealing function, so that when the discharge device 2 is actuated, air enters the container 5 through the ventilation duct 23 of the insert 16 can flow in. Here only the first sealing zone 26 is in function.

From Fig. 5 it can be seen that the attached cap 7 is sealed against the second sealing zone 27, so that the medium contained in the container 5 can neither escape through the open suction opening 24 nor through the ventilation channel 23. Only the second sealing zone 27 is in function here, but not the first sealing zone 26 at the suction opening 24.

In this way, a sealing element is saved, since in conventional soap dispensers with interchangeable containers, a sealing element is provided on the closure cap and a sealing element is provided on the discharge device.

In Figures 6 to 10, a set of the upper housing part 1, as described above for Figures 1 to 5, and a second embodiment of the container 5 according to the invention is shown. The main difference between the two container designs lies in the details of the insert 16 formed from the 2-component sealing material.

The insert 16 shown in plan view in Fig. 10 in turn comprises a harder area 21, which is connected via the support ring 28 to the neck 6 of the container 5 and is made of a harder sealing component, and a second, softer area 22, which is embedded in the upper side of the harder area 21 and is made of a softer sealing component. An approximately C-shaped slot 31 with a width of 0.2 to 1.5 mm, in particular 0.37 mm, is cut out in the harder area 21 and is only covered by the softer area 22. The harder area 21 therefore supports the softer area 22 when penetrating the central suction opening 24, since the outer edge of the C-shaped slot 31 forms a shear edge for the lower outer edge of the intake connector 3. Inwardly, the C-shaped slot 31 is delimited by a part 30 connected to the harder region 21 via a material bridge 32. The softer area 22 can be cut out above the part 30, as can be seen from FIG. 10. When the container 5 is attached to the upper housing part 1, its suction nozzle 3 penetrates the insert 16, punching the softer area 22 along the shear edge and pressing on the part 30, which is either broken out and falls down or is bent out, depending on the property of the harder area 21 of the insert 16. The softer area 22 then encloses the intake port 3 in a sealing manner, as can be seen from FIGS.

The harder area 21 of the first component is provided with a ventilation opening or a ventilation channel 23, around which the softer area 22 is cut out. As shown, the ventilation channel is equipped with a duck bill valve 33 or the like, through which air can flow into the dimensionally stable container 5 when the contents of the container are removed.

The puncturing of the suction opening or the removal of the material bridge 32 through the suction nozzle 3 requires only a very small axial path, which has been reached in each case at the latest when the bayonet lock is tightened, so that the container 5 is reliably opened. Thanks to the small width of the slot 31 and the support of the softer area 22 covering the slot 31 by the harder area 21, the softer area 22 is reliably separated when the container is attached to the upper housing part 1.

The embodiment shown in Figures 6 to 10 can also be used in dispensers in which the container 5 is inserted upside down, in which case the riser pipe 20 in the container 5 is omitted.

Claims (27)

Claims 1. A container (5) containing a pumpable medium with an opening which is closed by an insert (16) in which a suction opening (24) can be pushed through by means of a suction nozzle (3), characterized in that the insert (16) has at least two, preferably overlapping, areas (21, 22) of different hardness, the harder area (21) of the insert (16) resting against the opening of the container (5) and the softer area at least part of the suction opening (24) ) covers that the harder area (21) has properties that are tailored to support the softer area (22) when piercing the insert (16), and that the softer area (22) has properties that act as a seal for the intake port (3) are matched. 2. Container according to claim 1, characterized in that in the harder area (21) of the insert (16) at least part of the suction opening (24) is recessed and covered by the softer area (22). 3. Container according to claim 1 or 2, characterized in that the suction opening (24) has a slot (31), the edge of which forms a shear edge, along which the softer area (22) can be severed. 4. Container according to claim 3, characterized in that the slot (31) is C-shaped and is delimited on the inside by a removable material bridge (32) of the harder area (21). 5. Container according to claim 3 or 4, characterized in that the slot (31) has a width of 0.2 to 1.5 mm, preferably 0.37 mm. 6. Container according to one of claims 1 to 5, characterized in that the harder area (21) consists of a classic hard plastic, for example polypropylene, polyethylene, or a similar material. 7. Container according to one of claims 1 to 6, characterized in that the softer area (22) consists of a material with a Shore hardness of 30 to 90 Shore A, preferably 50 Shore A. 8. Container according to one of claims 1 to 7, characterized in that the insert (16) is formed from a 2K sealing material which comprises a hard component and a soft component which form the harder and the softer area (21, 22). 9. Container according to one of claims 1 to 8, wherein the container (5) is dimensionally stable, characterized in that a ventilation channel (23), into which a valve is inserted, is guided through the harder region (21) of the insert (16) . 10. Container according to claim 9, characterized in that the softer area (22) is recessed around the ventilation channel (23). 11. A container according to claim 9 or 10, characterized in that the valve is a duck bill valve (33). 12. Container according to one of claims 1 to 11, characterized in that the container (5) has a neck (6) on which elements of a bayonet catch (9) are provided on the outside and the insert (16) on the inside. 13. Container according to claim 12, characterized in that the elements of the bayonet catch (9) each have an axially attracting web (11) with a trough (13) ending at a stop (14), the transition to the web (11) having an opening resistance forms. 14. Container according to claim 12, characterized in that in front of a stop (14) of the bayonet catch (9) on the container neck (6) a rib (15) arranged parallel to the stop (14) is formed, which forms an opening resistance. 15. Set comprising a dispenser for a pumpable medium, with an output device (2) arranged in an upper housing part (1) on which a suction nozzle (3) is provided, and a container (5) containing the pumpable medium according to one of the claims 1 to 14, with an insert (16) formed from a sealing material and having a suction opening (24), the suction nozzle (3) of the dispensing device (2) sealing after the container (5) has been attached to the upper housing part (1) extends through the suction opening (24). 16. Set according to claim 15, characterized in that the insert (16) is formed from a 2K sealing material, and an area (21) contacting the container (5) consists of a first component whose properties are intended to be held in the container (5) are matched, and a sealing area (22) consists of a second component, the properties of which are matched to a sealing function. 17. Set according to claim 16, characterized in that a sealing zone (26) surrounding the suction opening (24) is formed on the second component of the insert (16). 18. Set according to claim 16, wherein the container (5) is dimensionally stable and the insert (16) is provided with a ventilation channel (23), characterized in that a sealing zone (27) enclosing the ventilation channel (23) on the second component of the Insert (16) is formed. 19. Set according to claim 18, characterized in that the second component of the insert (16) has two sealing zones (26, 27), the first sealing zone (26) surrounding the suction opening (24) and the second sealing zone (27) surrounding the suction opening (24) and the ventilation channel (23) encloses. 20. Set according to claim 19, characterized in that the two sealing zones (26, 27) are arranged concentrically. 21. Set according to one of claims 18 to 20, characterized in that the sealing zone (27) enclosing the ventilation channel (23) protrudes upwards beyond the container (5), and after the container (5) has been attached to the upper housing part (1 ) is at a distance (25) from the underside of the discharge device (2). 22. Set according to one of claims 15 to 21, characterized in that the container (5) has a neck (6) that can be coupled to the upper housing part (1), on the outside of the container-side elements of a bayonet lock (9) and on the inside the insert (16 ) made of sealing material are provided. 23. Set according to claim 22, characterized in that the bayonet lock (9) has an opening resistance. 24. Set according to claim 23, characterized in that the container-side elements of the bayonet lock (9) each have an axially attracting web (11) with a trough (13) ending at the stop (14), whose transition to the web (11) has the opening resistance forms. 25. Set according to claim 23, characterized in that in front of the stop (14) of the bayonet catch (9) on the container neck (6) a rib (15) arranged parallel to the stop (14) is formed, which forms the opening resistance. 26. Set according to one of claims 15 to 25, characterized in that the elements (17) on the housing side are cylindrical knobs. 27. Set according to one of claims 21 to 26, characterized in that the container (5) containing the pumpable medium is closed by a closure cap (7) before being attached to the upper housing part (1) and by the sealing zone (27) protruding upward. of the insert (16) is sealed. In addition 8 sheets of drawings