EP2268413B1 - Dispenser - Google Patents

Description

The invention relates to a dispenser according to the features of the preamble of claim 1.

The state of the art is about on the DE 10 2007 007 402 A1 to refer. In the donor known from this, cf. approximately Fig. 7 to 9 In this document, the dispensing head is firmly connected to a pumping chamber part which can be pressed down to pump. The dispenser head can be shut down by a screwing motion to place the dispensing head with the dispensing mouth in a dispensing position.

From the WO 2008/010640 A a dispenser is known in which the dispensing head is firmly connected to the dispensing tube communicating with the pumping chamber. The dispensing head thus cooperates with the passage opening of the dispensing tube in the extended position as in the retracted position. The WO 2008/012455 A1 has a comparable to the aforementioned document trained donor. The dispensing head is connected to the dispensing tube via a flexible hose part. It is also here constantly the connection to the passage opening of the dispenser tube, regardless of a retracted or extended position of the dispensing head. In addition, is still on the EP 1829791 A1 and the FR 2854390 A to refer.

Starting from a state of the art approximately according to WO 2008/010640 A1 The object of the invention is to provide an advantageous connection between the delivery tube and the dispensing head.

This object is achieved in the subject matter of claim 1, wherein it is provided that the dispensing head has a non-rotatably formed with this dispensing closure part as a continuation portion of the dispensing tube, wherein the opening of the dispensing closure part is aligned in the extended position in alignment with an opening of the dispensing tube and in a retracted position a displacement of the delivery tube is achieved by a circumferential and a vertical displacement between the openings.

It is preferred that the dispenser head part has a vertically accessible recess into which a protruding dispensing nozzle of the dispensing head moves in and out. In the retracted state, a favorable hiding position of the dispensing nozzle is achieved. This can also be used to close the dispensing nozzle.

The dispenser head is rotatable relative to the storage container. A user can hold the dispenser to the storage container and then set by turning the dispenser head part, the desired position of the dispensing head.

Furthermore, it is preferred that the dispensing head is guided in relation to a designed as an adjustment part donor fixed part. The support of the dispensing head to the dispenser-fixed part is realized by the slotted guide. A cheap snap-in mounting is possible.

The dispensing tube, which overhangs the dispensing head, is in this case further preferably firmly connected to an upper pumping chamber part, in particular the piston part. While the dispensing head, so formed sleeve-like, is telekopierend to the dispensing tube movable.

In the extended position of the dispensing head acts in alignment with a dispensing opening of the dispenser tube, in the retracted position, however, with a sealed area of the dispenser tube, is given at the same time together with the retraction and extension of the dispensing head, a closure or opening of the mass output path.

Fig.1

in schematischer perspektivischer Ansicht den Spender bei eingefahrenem Spendekopf;

Fig. 2

eine Explosivdarstellung des Spenders;

Fig. 3

eine Querschnittsdarstellung des Spenders, oberer Bereich, bei eingefahrenem Spendekopf;

Fig. 4

eine Darstellung gemäß Fig. 3, in teilperspektivischer Ansicht;

Fig. 5

eine Darstellung gemäß Fig. 4, bei teilweise ausgefahrenem Spendekopf;

Fig. 6

eine Darstellung gemäß Fig. 5, konzentriert auf die Zusammenwirkung des Spendekopfes mit dem Spen-der-Kopfteil;

Fig. 7

eine Darstellung gemäß Fig. 3, bei vollständig ausgefahrenem Spendekopf;

Fig. 8

eine Darstellung des Spendekopfes im ausgefahrenen Zustand;

Fig. 9

eine Darstellung entsprechend Fig. 7, einer weiteren Ausführungsform, nur des Oberteils, ohne Vorratsraum;

Fig. 10

eine Darstellung gemäß Fig. 8, im eingefahrenen Zustand;

Fig. 11

eine Darstellung der Ausführungsform der Fig. 8 bzw. Fig. 9, im ausgefahrenen Zustand, teilweise aufgeschnitten und perspektivisch.

In the following, the invention will be explained further with reference to the attached drawing, which, however, represents only one embodiment. Hereby shows:

Fig.1

in a schematic perspective view of the dispenser with retracted dispensing head;

Fig. 2

an exploded view of the donor;

Fig. 3

a cross-sectional view of the dispenser, upper area, with retracted dispensing head;

Fig. 4

a representation according to Fig. 3 , in partial perspective view;

Fig. 5

a representation according to Fig. 4 , with partially extended dispensing head;

Fig. 6

a representation according to Fig. 5 , focused on the interaction of the dispensing head with the sponge-the-head part;

Fig. 7

a representation according to Fig. 3 , with fully extended dispensing head;

Fig. 8

a representation of the dispensing head in the extended state;

Fig. 9

a representation accordingly Fig. 7 a further embodiment, only the upper part, without storage space;

Fig. 10

a representation according to Fig. 8 when retracted;

Fig. 11

a representation of the embodiment of the Fig. 8 respectively. Fig. 9 , in the extended state, partially cut open and in perspective.

Shown and described, first with reference to Fig. 1 a dispenser 1, which serves to dispense liquid to pasty masses. It has a dispensing head 3 accommodated in a dispenser head part 2 which at the same time forms the outer surface. The dispensing head 3 connects up to a pumping chamber 4, see Fig. 3 , with an inlet valve 5 and an outlet valve 6. It can also be provided only a valve.

Below the pumping chamber 4 is a storage space 7, in which, for example, a follower piston 8 may be arranged. In the dispenser head part 2, a fixed adjustment part 9 is furthermore arranged, which has an adjustment slide 10 in which one or more slide elements 11 of the dispensing head 3 run.

The donation head part 2 is designed like a sleeve. It has a tubular shape with U-wall formed at the upper end. The outer wall is in cross section via a U-web in an inwardly freely projecting Wandungssteg over. The U-web forms an outer, circular ring-shaped end face. In the region of the recess 35 for the dispensing mouth 25, the wall is preferably only angular, without inner U-legs, formed.

The dispensing head 3 is positively coupled to the dispenser head portion 2, which is rotatably supported relative to a dispenser sleeve portion 12. However, it is not vertically movable relative to the dispenser sleeve portion 12.

The rotational coupling between the dispenser head part 2 and the dispensing head 3 is achieved in detail by a driving projection 14 formed on the dispensing head 3, in the exemplary embodiment below the dispensing mouth 25, which engages in a respective receiving recess on the inside of the dispenser head part 2.

The pumping chamber 4 is formed in a further detail by a fixed pumping chamber lower part 15 and a comparatively vertically movable pumping chamber upper part 16.

The pumping chamber upper part 16 is composed in a further detail of a piston part 17 and a spring-engaging part 18 engaging in this latching manner. Against the spring stop member 18 acts a return spring 19 which is supported at the other end of the pump chamber lower part 15, outside the pumping chamber 4. Above the Pumpkammerauslassventiles 6 operatively connects to a dispensing tube 21, which is partially composed by an inner surface of a cylindrical engagement portion of the spring stop member 18 and partially by a latched with the engagement portion 20, axially adjacent in the dispensing direction tube part 21 '. The dispensing tube 21 is covered by the dispensing head 3. The tube part 21 'is in the embodiment, preferably by positive engagement, secured against rotation of the spring stopper 18. The spring stop member 18 simultaneously forms an upwardly free receiving sleeve 22, in which the head part 3 is added telescopically (see, for example Fig. 3, 5 ). Next rotatably with the head part 3, an output closing part 23 is provided. The discharge closure member 23 is also a part of the dispensing tube 21 as a continuation portion, and rotates together with the dispensing head 3 in a rotational operation of the dispenser head 2 relative to the fixed tube part 21 '. For this purpose, it cooperates with the tube part 21 'by means of a cylinder section 24. The cylinder portion 24 comprises the tube part 21 'on the outside. The angled continuation portion of the dispensing tube in the dispensing closure member 23 merges into a horizontally extending dispensing nozzle 13 forming dispensing section, at the end of which the dispensing mouth 25 is formed.

The fixed receiving sleeve 22 further forms a link path 26, in which a trained on the dispensing head 3 sliding block 27, see Fig. 6 , running.

The link path 26 is composed in detail of a sloping portion 28, a lower holding portion 29 and an upper holding portion 30 together.

Upon rotation of the dispenser head part 2 relative to the dispenser sleeve part 12 of the dispensing head 3 is positively entrained. As a result of the support of the dispensing head 3 by means of the slotted guide on the receiving sleeve 22 representing a donor fixed part, the desired vertical movement of the dispensing head 3 takes place.

If in the extended position of the dispensing head 3 is rotated so that the sliding block 27 is in the upper holding portion 30, by pressing, so pressurizing the top of the dispensing head 3, a mass output can be achieved. Because at the same time is in this position, see, for example Fig. 7 , an alignment between the opening 31 of the discharge end part 23 and the opening 32 of the tube 21 given.

In the retracted position, on the other hand, see Fig. 3 , By a circumferential and vertical displacement between the openings 31, 32 at the same time a deportation of the tube section 21 is reached. In addition, the dispensing opening 25 having radial projection of the dispensing head 3 in a recess 35 of the dispenser head part 2 a. A movement of the dispensing head 3 down is prevented. This inlay can also be used as a mouth closure.

In further detail, the pumping chamber is under part 15 on a Vorratsraumteil 33, see Fig. 3 , screwed on. The Vorratsraumteil 33 is outside, anyway over a part of its axial extent of the part 12. In addition, it is over a lower part of its extension, wherein on the inside of the Vorratsraumteils a follower piston 8 is arranged, see Fig. 2 , overlapped by a lower cap part 34.

In the retracted position at the same time an upper edge of the donation head portion 2 is coextensive with a surface of the dispensing head 3. The surface may be a flat, perpendicular to a vertical axis of the dispenser surface. But it can also, for example, according to the embodiment, see Fig. 3 be slightly curved in cross-section formed to be trained. In this case, a circular section-shaped cross section can be given. In this case, with a radius which exceeds a horizontal diameter of the preferably total circular formed donor. However, the radius is more preferably less than five times the diameter.

In the embodiment of the Fig. 9 to 11 is an upper edge of the dispenser head part 2 in the retracted state, Fig. 10 , gleichflächig, corresponding to a flat surface, extending to the surface of the dispensing head 3 is formed.

It is also important that the donor mouth 25 in the retracted state, Fig. 10 , behind which also in the region of the dispensing mouth 25 in the end face final wall portion 36 of the dispenser head part 2 is retracted. The wall portion 36 is not double-walled in this area, corresponding to the described U-shape, but only formed single-walled. Below the dispensing mouth 25, a wall region 37 of the dispensing head 3, which runs concavely in the illustrated cross section with respect to its outside, adjoins.

That in the Fig. 9 and 10 also shown in terms of the storage container to a docking connection, in the form of a catch or Bouncing connection, designed. In the above-described embodiment, it can be seen that this is a screw connection.

As in particular from Fig. 11 it can be seen, the adjustment gate 10 is closed on the upper side by a pull-out lock 38. The pull-out lock consists of a placed on the outer wall latch 39, from which downwardly and inwardly directed a barb portion 40 protrudes. During assembly of the dispensing head 3 of the sliding block 27 moves into the bar by the latch 39 only outside bridged opening of Verstellkulisse 10 and overflows here, with elastic deflection to the outside, the barb portion 40. After overrun the bouncing barb member 40 blocks a possible withdrawal of the dispensing head 3 from the adjusting part 9.

For both illustrated embodiments, moreover, it is important, in particular, that in the course of an adjustment of the dispensing head 3 relative to the dispenser head part 2, ie a retraction or retraction, ie a change between the position according to FIG Fig. 9 and Fig. 10 respectively. Fig. 3 and Fig. 7 , no change in volume with respect to the in the discharge closure member 23 and the subsequent, leading to the donor mouth 25 Masseweg on the one hand and in the tube part 21 and 21 'on the other hand occurs. The mass, as it were opposite the tube part 21, 21 'during start-up and twisting or lowering and twisting, is merely sheared off or brought into alignment with the opening 32 of the tube 21 in order to be able to dispense it during a pumping movement.

Next can be provided, as well as in Fig. 11 is shown that on the fixed adjustment part 9, a projection is attached, which is overflowed during rotation of the dispenser head part 2 circumferentially, inwardly there protruding further projections, which are not shown in detail, overflowed. This to make a noise, such as a click sound, which also indicates acoustically to the user the complete retraction or extension of the dispensing head 3.

In detail, how out Fig. 11 it can be seen, it may be an initially formed in the adjustment part 9 opening 41, on the inside of both an inwardly and outwardly projecting latch 42, to some extent elastically movable, is formed and further to said, not shown protrusions from above The inner surface of the dispenser head part 2. It is understood that the projections are arranged to each other so that the respective noise of the upper or lower end position of the dispensing head 3 corresponds.

Claims (4)

1. Dispenser (1) for dispensing liquid to pasty substances, having a dispensing head (3) with a dispensing mouth, a fixed dispenser part, a pump chamber, a supply chamber (7) and a dispenser head part (2), it being possible for the dispensing head (3) to be displaced relative to the fixed dispenser part (22) out of a dispensing-standby position into a lowered position and vice versa, as a result of being supported on a fixed dispenser part (22) when being carried along in rotation by the dispenser head part (2), and the dispenser head (3) covering over a dispensing tube (21) that communicates with the pumping chamber, characterized in that a dispensing-closure part in form of a continuation portion of the dispensing tube is provided that is rotationally fixed to the head part (3), whereby in the extended position an opening (31) of the dispensing-closure part (23) is directed aligned with the opening (32) of the dispensing tube (21) and, in a retracted position, by a circumferential and vertical displacement between the openings (31, 32) a slider-closing of the dispensing tube (21) is achieved.
2. Dispenser according to Claim 1, characterized in that the dispenser head part (2) is formed in the manner of a sleeve.
3. Dispenser according to one of the preceding claims, characterized in that the dispenser head part (2) has a vertically accessible recess (35) into and out of which moves a projecting dispensing mouth (25) of the dispensing head (3).
4. Dispenser according to one of the preceding claims, characterized in that the dispensing head (3) is guided by a slotted track relative to the fixed dispenser part (22) which is formed as an adjustment part.

Images