EP3352911B1 - Dispenser of liquid or pasty products - Google Patents

Description

Field of engineering

The invention relates to a dispenser for liquid to pasty masses, comprising a dispensing head and a dispenser body, wherein the dispenser head is movable relative to the dispenser body for performing a pumping movement in a displacement direction and is also rotatable relative to the dispenser body, wherein further the dispenser with a pumping chamber an inlet and an outlet valve, wherein in a dispensing direction of mass to the outlet valve followed by a discharge line, which is divided into two mutually movable sections, which are due to a movement to each other in a closed position in which the mass is not ausbringbar, and a Passage position, in which the mass is ausbringbar, are displaceable, wherein the portions are arranged at facing areas in a plugged together to form an inner part and an outer part, and wherein a closure between an outer wall of the inner part and an inner wall of the outer part can be produced t, wherein further the sections to a change between the closed position and the passage position without a relative movement in the direction of displacement are mutually movable.

State of the art

Donors of the type in question are known. So is about on the DE 10 2009 017105 A1 to refer.

From the DE 20 2014103 984 U1 a dispenser is known in which a dispensing tube by a relative rotation to a receiving part in a blocking position or a passage position is movable. The receiving part is firmly connected to the dispenser housing.

From the EP 1815 914 A1 a dispenser is known in which in the rest position of the metering device, a closure of a ventilation channel for the storage space is given. Next is still on the state of the art on the EP 1884 290 A1 . US 5,899,363 A and WO 2004/071673 A1 to refer.

Summary of the invention

Based on the stated prior art, the invention has for its object to provide a dispenser for liquid to pasty masses, which has a favorable closure possibility in which the mass is not ausbringbar, and a passage position in which the mass is ausbringbar. Next, the invention is concerned with the task to form a cheap ventilation option in a dispenser for liquid to pasty masses.

This object is initially achieved in the subject matter of claim 1, wherein it is pointed out that a first section carries the pump piston on the foot side and is non-rotatably guided relative to the dispenser but displaceable in the axial direction in the pumping chamber.

This object is further achieved in the subject matter of claim 2, wherein it is pointed out that the ventilation opening is closed according to circumferential lip seal-like abutment of a donor body portion of the dispenser body to a sealing counter portion of the dispenser head.

The solution mentioned above can also be described in that the mutually movable sections in a sitting of the Dispenser are movable on a horizontally oriented support plane to a change between the closed position and the passage position without a relative movement in a vertical direction to each other.

The change between the passage position and the closure position is according to the proposed embodiment without a relative movement of the discharge line sections at least along a donor longitudinal axis or a dispenser head axis feasible. The displacement of one section along the axis can entail entrainment of the other section in the same direction.

Thus, in a further preferred embodiment, it is provided that the sections are only rotationally movable relative to each other for a change between the two positions, furthermore in particular rotating about a donor axis or said displacement direction, if this is assumed to be centrally arranged. The donor axis runs vertically in a horizontally aligned support plane. As a result of the relative rotational mobility of the sections relative to one another, in particular the nested areas of the sections can be brought into a position relative to each other, in which then released passage openings the discharge line sections can be fluidly connected to one another.

For ventilation of the container interior in the course of a mass output, a ventilation opening may be provided in the dispenser, in particular in the interaction region between dispenser head and dispenser body, via which air can be sucked from the environment. In the closed position, more particularly in a delivery position of the dispenser, this ventilation opening is preferably closed. The closure may be realized by cooperation of portions of the dispenser head with portions of the dispenser body. Here, a sealing lip-like interaction can be given.

To enable the pumping movement of the dispenser head in the described vertical direction or in the described displacement direction between an extended position and a retracted position be movable. Thus, preference may be given to a displacement of the dispenser head in the direction of the extended position filling of a pumping chamber with mass due to negative pressure can be achieved. In the course of the displacement of the dispenser head in the direction of the retraction position, the mass is discharged from the pumping chamber via the discharge line.

Towards the extended position, the dispenser head may be spring-loaded. The spring force may result from the material properties of the cooperating elements and / or from a separately provided spring.

The mobility between the extended position and the retracted position, as further preferred, be blocked in the closed position. Thus, in addition to the preferred closure between the sections of the discharge line, the mobility of the dispensing head along the dispenser axis is also blocked in such a closure position. It is so no pumping movement of the dispenser head possible.

The closure position can be taken in the extended position of the dispenser head. Alternatively or in combination, the closure position can also be ingested in the retracted position.

Both the extended position and the retracted position are preferably defined as a result of the formation of a stop. In this particular dispenser head displacement position, the closure position can be taken in one embodiment.

The blocking of the mobility of the dispenser head along the dispenser head axis can be achieved due to cooperation of projections on the dispenser head and on the dispenser body, or projection-like Formations on the one hand and the projections receiving recesses on the other.

Brief description of the drawings

Fig. 1

in perspektivischer Darstellung einen Spender mit einem Spenderkopf in originalitätsgesicherter Verschlussstellung;

Fig. 2

eine Seitenansicht gegen den Spender in der Stellung gemäß Figur 1;

Fig. 3

eine Stirnansicht des Spenders gemäß Figur 1 bzw. Figur 2;

Fig. 4

den Schnitt gemäß der Linie IV - IV in Figur 3;

Fig. 5

den Schnitt gemäß der Linie V - V in Figur 2;

Fig. 6

den Schnitt gemäß der Linie VI - VI in Figur 2;

Fig. 7

eine der Figur 4 entsprechende Darstellung, jedoch nach Entfernen der Originalitätssicherung;

Fig. 8

eine der Figur 6 entsprechende Darstellung, ebenfalls nach Entfernen der Originalitätssicherung;

Fig. 9

eine der Figur 4 entsprechende Schnittdarstellung, nach Verdrehen des Spenderkopfes aus der Verschlussstellung heraus in eine Durchlassstellung;

Fig. 10

eine Schnittdarstellung gemäß Figur 5, jedoch die Spenderkopfstellung gemäß Figur 9 betreffend;

Fig. 11

den Schnitt gemäß der Linie XI - XI in Figur 9;

Fig. 12

den Schnitt gemäß der Linie XII - XII in Figur 9;

Fig. 13

eine der Figur 9 entsprechende Schnittdarstellung, jedoch bei verlagertem Spenderkopf in die Ausfahrstellung;

Fig. 14

eine der Figur 10 entsprechende Schnittdarstellung, betreffend die Spenderkopfstellung gemäß Figur 13;

Fig. 15

eine weitere der Figur 9 entsprechende Darstellung, jedoch bei verriegeltem Spenderkopf in der Ausfahrstellung;

Fig. 16

eine der Figur 10 entsprechende Darstellung, betreffend die Verriegelungsstellung gemäß Figur 15;

Fig. 17

eine Schnittdarstellung gemäß Figur 4, eine zweite Ausführungsform betreffen;

Fig. 18

die zweite Ausführungsform on einer Schnittdarstellung gemäß Figur 5,

Fig. 19

eine der Figur 15 entsprechende Darstellung, jedoch eine Zwischenstellung des Spenderkopfes betreffend.

The invention is explained below with reference to the accompanying drawing, which illustrates only exemplary embodiments. A part that is explained only with reference to one of the embodiments and is not replaced in another embodiment due to the special feature there is not replaced by another part, is thus described for this further embodiment as any possible existing part. On the drawing shows:

Fig. 1

in perspective view of a dispenser with a dispensing head in originality-secured closure position;

Fig. 2

a side view against the dispenser in the position according to FIG. 1 ;

Fig. 3

an end view of the dispenser according to FIG. 1 or. FIG. 2 ;

Fig. 4

the section according to the line IV - IV in FIG. 3 ;

Fig. 5

the section along the line V - V in FIG. 2 ;

Fig. 6

the section according to the line VI - VI in FIG. 2 ;

Fig. 7

one of the FIG. 4 corresponding representation, but after removing the tamper-evident;

Fig. 8

one of the FIG. 6 appropriate representation, also after removing the tamper-evident;

Fig. 9

one of the FIG. 4 corresponding sectional view, after rotation of the dispenser head from the closed position into a passage position;

Fig. 10

a sectional view according to FIG. 5 , but the dispenser head position according to FIG. 9 concerning;

Fig. 11

the section according to the line XI - XI in FIG. 9 ;

Fig. 12

the section according to the line XII - XII in FIG. 9 ;

Fig. 13

one of the FIG. 9 corresponding sectional view, but with displaced dispenser head in the extended position;

Fig. 14

one of the FIG. 10 corresponding sectional view, regarding the dispenser head position according to FIG. 13 ;

Fig. 15

another one FIG. 9 corresponding representation, but with locked dispenser head in the extended position;

Fig. 16

one of the FIG. 10 corresponding representation, regarding the locking position according to FIG. 15 ;

Fig. 17

a sectional view according to FIG. 4 relate to a second embodiment;

Fig. 18

the second embodiment on a sectional view according to FIG. 5 .

Fig. 19

one of the FIG. 15 corresponding representation, however, concerning an intermediate position of the dispenser head.

Description of the embodiments

Shown and described is first on the basis of FIGS. 1 to 16 a first embodiment of a dispenser 1 for liquid to pasty masses.

The dispenser 1 essentially has a dispenser body 3 that can be arranged on a container 2, in particular can be screwed on, and a dispenser head 4 with a dispenser mouth 5.

To dispense mass stored in the container 2, the dispenser head 4 is perpendicular to a horizontally aligned support plane on which the dispenser 1 can rest, displaceable between an extended position and a retracted position. The direction of displacement is indicated by V, see for example FIG. 14 , In this way, a pumping movement can be achieved, wherein in the retracted position, ie in the lowered position of the dispenser head 4 mass is discharged through the dispenser mouth 5 and in the course of the displacement of the dispenser head 4 in the extended position mass from the container 2 is sucked into a pumping chamber 6.

The pumping chamber 6 is fluidly formed between an inlet valve 7 and an outlet valve 8.

The inlet valve 7 is preferably designed donor body side. Facing away from the pumping chamber 6 can connect to the inlet valve 7, a mass intake pipe 9.

On the inside of the pumping chamber 6 surrounding the pumping chamber wall 30 is sealingly a pump piston 10 at. The pump piston 10 is connected via the wall of a substantially coaxial to the dispenser axis x extending discharge line 11 to the dispensing head 4 and displaced via the dispenser head 4 between the extended position and the retracted position of the dispenser head 4.

The dispenser head 4 is movable along the dispenser axis x and around the dispenser axis x in the circumferential direction relative to the fixed dispenser body 3.

The discharge line 11 is essentially divided into two, thus formed from two mutually movable, in particular tubular sections 12 and 13. The section 13 carries the pump piston 10 on the foot side and is not rotatable relative to the dispenser body 3, but guided displaceably in the axial direction in the pumping chamber 6. The rotational blocking may for example be provided by a formed on an outer wall of the section 13 vertical rib which is vertically movable in a corresponding groove of the pumping chamber wall 30.

The section 12 is rotatably connected to the dispenser head 4. A displacement of the dispenser head 4 in the direction of extension of the dispenser axis x entails the entrainment of the section 13 having the pumping piston 10 via the section 12.

The facing portions of sections 12 and 13 are nested. The dipping into the section 13 end portion of the section 12 radially to the donor axis x outwardly extending flow openings 14, which are in communication with the centrally formed discharge line 11.

In the region of the pump chamber 6 from the discharge line 11 separating bottom 15, the outlet valve 8 is formed. The floor 15 is preferably part of the section 13, more preferably forming the piston ceiling.

The discharge line 11 merges into an output channel 16 which is oriented essentially radially to the dispenser axis x and ends in the dispenser mouth 5.

The dispenser head 4 is displaceable relative to the dispenser body 3 along the dispenser axis x, in this case supported by a spring 17, in particular a compression spring, on the dispenser body 3. About the trained in the embodiment as a separate cylinder spring spring 17 of the dispenser head 4 is loaded in the direction of an extended position.

In addition, the dispenser head 4 is rotatable relative to the dispenser body 3 about the dispenser axis x, in particular rotatable by 90 degrees, from a closed position into an open position and vice versa.

The in the FIGS. 1 to 6 the first embodiment and in the Figures 17 and 18 The second embodiment shown closure position in the retracted position of the dispenser head 4 is preferably the delivery position before a first use of the dispenser 1. This delivery position can be secured on a tamper-evident portion 18th

The tamper-evident portion 18 is in the illustrated embodiment, a tamper-evident ring 19, which circumferentially surrounds a dispenser neck 21 cooperating telescopically with a dispenser body neck 20 below the dispenser mouth 5.

The tamper-evident ring 19 is connected to the dispenser body 3 with material bridges 22 that are distributed uniformly over the circumference, preferably according to the material-integral and integral formation of tamper-evident ring 19 and dispenser body 3.

The material bridges 22 are web-like and form in the in the FIGS. 1 to 18 embodiments shown at the same time in the circumferential direction spaced form-fitting projections 31 from.

In the intermediate spaces between two mutually successive in the circumferential direction following positive engagement projections 31, the facing edge of the dispenser neck neck 21 engages with axially oriented Formschlussausformungen 23 a.

When attached to the dispenser body 3 tamper-evident ring 19 so the dispenser head 4 is rotationally inhibited due to the positive connection between the positive locking projections 23 and the positive-locking projections 31.

In this lowered closed position, which is also recoverable after removal of the tamper-evident portion 18, the dispenser head 3 is secured in the retracted position. This is achieved by the fact that in this closure position wall outside on the discharge line section 12 radially outwardly projecting locking shoulders 24 on the underside against radially inside projecting locking portions 25 of the dispenser body 3 occur. The dispenser head 4 is not displaced in this position in the extended position.

Also, in this closure position, the flow-through openings 14 of the section 12 are closed, according to sealing against radially inwardly projecting wall sections of the section 13 (see. FIG. 4 ).

In addition, in the lowered closed position, a ventilation opening 26 for the container space is closed, as a result of circumferential lip-seal-like contact of a dispenser body section 27 on a sealing counterpart section 28 of the dispensing head 4.

In an intermediate position according to FIG. 19 between the extended position, compare approximately FIG. 15 , and a retracted position, compare for example FIG. 10 , Air can penetrate through an air passage L through a ventilation opening 32 in the pumping chamber wall 30 into the interior of the container 2. This constellation is given both in the course of an extension as well as the retraction. This constellation results in the same way in the second embodiment according to the Figures 17 and 18 , which is not shown separately.

The tamper evidence is breakable according to willpowered twisting of the dispenser head 4 from the closed position into the passage position according to the Figures 9 and 10 , In this case, the material bridges 22 are torn off from the dispenser body 3 via the positive-fit formations 23. The tamper-evident ring 19 can thereafter rest loosely on the dispenser body 3, in this case restricting neither the rotatability nor the linear displaceability of the dispenser head 4.

Also, the tamper-evident ring 19 can be completely demolished from the dispenser body 3 using a tab-like handle 29.

By turning the dispenser head 4 to, as preferred, for example, 90 degrees, the portion 12 having the flow openings 14 is rotated relative to the portion 13 having the pump piston 10, whereby the flow openings 14 as shown in FIGS Figures 9 and 10 be brought into a passage position. The mouths of the flow-through openings 14 are in this case in the radial direction spaced from the wall portion of the section 13. This is achieved, for example, according to a material taper of the wall portions of the section 13 corresponding in this position (see. FIG. 11 ).

At the same time, the locking shoulders 24 of the section 12 are rotatably displaced in a position in which they are no longer covered by the donor body side locking portions 25 (see. FIG. 12 ).

The dispenser head 4 is loaded after rotation of the same from the closed position into the passage position via the spring 17 in the direction of the extended position, wherein in this linear displacement of the dispenser head 4 via the inlet valve 7 mass is sucked into the pumping chamber 6.

The dispenser 1 is in this position in the position of use. By lowering the dispenser head 4, the mass is discharged from the pumping chamber 6 via the outlet valve 8 and through the throughflow openings 14 via the discharge line 11.

The vent opening 26 is free in the extended position of the dispenser head 4, so that on this between the telescopically cooperating sections From the dispenser body 3 and dispenser head 4 air can flow into the interior of the container 2.

The Figures 13 and 14 show the dispenser 1 in the ready for use extension position of the dispenser head. 4

Also in this extended position, the dispenser head 4 can be turned back into a closed position, in particular to obtain a transport lock. This position is exemplary in the FIGS. 15 and 16 shown.

In addition, in this position, according to cooperation with a radially narrowed portion of the section 13, the flow openings 14 are closed (see. FIG. 15 ). Next, the axial displacement (pumping movement) of the dispenser head 4 is prevented in this position, according to support the locking shoulders 24 on the locking portions 25 of the dispenser body 3 (see. FIG. 16 ).

In the embodiment of the Figures 17 and 18 is the ventilation opening 26 shown in these figures lowered closed position by an annular groove 33 formed on the portion 12, which cooperates with a corresponding projection 34 on the pump chamber also in this area 30 drawn up. In addition, the same, here in this area and with respect to this cross-section wing-like enlarged portion of the section 12 forms an inner receptacle 35 for the spring 17 from. While the spring 17 is seated on the underside of the dispenser body portion 27 in the first embodiment, the spring 17 is seated in the embodiment of the Figures 17 and 18 on the underside on an inner shoulder of the pumping chamber wall 30. <b><u> List of Reference Numbers </ u></b> 1 donor 26 ventilation opening 2 container 27 Dispenser body section 3 dispenser body 28 Seal countersection 4 dispenser head 29 handle 5 donor mouth 30 pumping chamber wall 6 pumping chamber 31 Positive locking projection 7 intake valve 32 ventilation opening 8th outlet valve 33 ring groove 9 Mass intake 34 head Start 10 pump piston 35 Indoors 11 discharge 12 section 13 section 14 flow-through 15 ground 16 output channel L By air 17 feather V displacement direction 18 Tamper-evident part x donor axis 19 originality ring 20 Dispenser body neck 21 Dispenser head neck 22 material bridges 23 Formschlussausformung 24 blocking shoulder 25 blocking portion

Claims (7)

1. A dispenser (1) for liquid to pasty substances with a dispenser head (4) and a dispenser body (3), wherein the dispenser head (4) is movable relative to the dispenser body (3) in a displacement direction in order to carry out a pumping motion, as well as rotatable relative to the dispenser body (3), wherein the dispenser (1) furthermore features a pump chamber (6) with a pump piston (10), an inlet valve (7) and an outlet valve (8), wherein a dispensing tube (11) is arranged downstream of the outlet valve (8) in a dispensing direction of the substance and said dispensing tube is divided into two sections (12, 13), which can be moved relative to one another and, as a result of a motion relative to one another, transferred into a closed position, in which the substance cannot be dispensed, and into an open position, in which the substance can be dispensed, wherein the sections (12, 13) are nested in one another at regions that face one another in order to form an inner part and an outer part, wherein a seal can be produced between an outer wall of the inner part and an inner wall of the outer part, and wherein the sections (12,13) can be moved relative to one another without a relative motion in the displacement direction in order to change between the closed position and the open position, characterized in that a first section (13) carries the pump piston (10) on its bottom side and is guided in the pump chamber (6) such that it is non-rotatable relative to the dispenser body (3), but displaceable in the axial direction.
2. The dispenser (1) according to the characteristics of the preamble of claim 1 or according to claim 1, wherein the dispenser features a ventilation opening (26) for a reservoir and wherein the ventilation opening (26) is shut in the lowered closed position, characterized in that the ventilation opening is shut as a result of the circumferential contact of a dispenser body section (27) of the dispenser body (3) with an opposite sealing section (28) of the dispenser head (4) similar to a lip seal.
3. The dispenser (1) according to one of the preceding claims, characterized in that the sections (12, 13) can only be rotationally moved relative to one another in order to change between the closed position and the open position.
4. The dispenser (1) according to one of the preceding claims, characterized in that the dispenser head (4) can be moved between an extended position and a retracted position in the displacement direction.
5. The dispenser (1) according to claim 4, characterized in that the mobility between the extended position and the retracted position is blocked in the closed position.
6. The dispenser (1) according to one of the claims 4 or 5, characterized in that the closed position can be assumed in the extended position.
7. The dispenser (1) according to one of the claims 4 or 5, characterized in that the closed position can be assumed in the retracted position.

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