EP3989770B1 - Device for discharging a substance - Google Patents

Description

Field of technology

The invention relates firstly to a device for applying a mass, wherein a movable carrier is arranged in a device housing for acting on the mass, wherein furthermore a rotary handle is formed for moving the carrier between a lower starting position and an upper extended position of the carrier, which forms a spindle part with a spindle that is rotatable about a longitudinal axis given in the direction of travel of the carrier, wherein the spindle part passes through a housing base and is locked and sealed to the housing base, wherein furthermore a locking projection of the housing base engages in a locking recess of the spindle part and a sealing projection starting from the housing base rests sealingly on a peripheral surface of the spindle part and wherein furthermore the rotary handle of the spindle part is formed on the underside with respect to the device housing, wherein the locking recess of the spindle part, seen from the rotary handle, is formed axially below the peripheral surface that interacts with the sealing projection, wherein furthermore the sealing projection is shaped like a sleeve, with a cross-section that at least partially results axially upwards Taper, the taper at least partially extending in the manner of a cone, a counter-locking projection being formed on the spindle part, which widens conically in cross-section from axially above to axially below, a control slope of the counter-locking projection also merging axially upwards into a circumferential surface of the spindle part or sleeve which runs concentrically to the longitudinal axis x, a sealing projection on the housing side resting on this circumferential surface, which is formed on the top of the housing base and surrounds the counter-locking projection of the spindle part with a foot section which runs concentrically to the longitudinal axis x, a radially outward-facing end face of the counter-locking projection is formed on a radius which is selected to be larger than a radius of an inward-facing end face of the locking projection.

State of the art

Devices of the type in question are known, for example, from the cosmetics sector. For example, such a device can be designed in the manner of a deodorant stick, with a preferably solid mass which, supported on the carrier of the device in the device housing, can be moved via the spindle formation using the rotary handle into a protruding position opposite an opening in the device housing. In particular, use of the device is preferably possible in this protruding position. As a result of a spindle relocation, the mass can be moved into a non-use position retracted into the device housing in the direction of the lower starting position of the carrier.

The spindle part is rotatably locked to the housing base and sealed against it, whereby the aim is preferably to achieve the most gas-tight seal possible between the housing interior containing the mass and the environment.

In this context, the state of the art is referred to, for example, in the US 10 315 832 B2 referred to.

In one of the US 4 915 528 A In the known device, the sealing projection is formed from a first inclined section, which is directly adjacent to the counter-locking projection and passes over a step section into a further inclined section, in the area of the step section, with widening of the relevant section as a whole.

Furthermore, the state of the art is referred to EP713660B1 ( DE 695 34 260 T2 ), the WO 2010/072 669 A1 , the US 3 907 441 A and the EP 488 866 B1 to refer to.

Summary of the invention

Based on the prior art described, the invention is concerned with the task of specifying a device for applying a mass which is advantageously designed with regard to sealing and mountability.

This object is achieved in the subject matter of claim 1, wherein the foot section surrounds the counter-locking projection at a distance, wherein the tapered section extends from the foot section axially upwards and radially inwards, wherein at the end of the tapered section the sealing projection comes into sealing contact with the peripheral surface of the spindle part with a radially inner sealing surface, and wherein the sealing projection is lip-shaped in cross-section, wherein the sealing surface is arranged on a radius which is selected to be smaller than the radius of the end surface of the locking projection, which is also selected to be smaller than the radius of the end surface of the counter-locking projection.

The sealing projection is shaped like a sleeve, with a cross-section that initially tapers partially upwards. This results in the sealing projection having an overall funnel-like design.

The taper runs at least partially according to a cone.

By using such a funnel or sleeve shape, a circumferential seal can be created in the normal position of use, which may be spring-elastic against the facing circumferential surface of the spindle part. The opening in the area of the tapering of the sleeve-like sealing projection for the passage of the spindle part can, in an unloaded position, i.e. before the spindle part passes through the opening, have an opening size, in particular a diameter size, which can be selected to be smaller than the corresponding diameter size in the area of the corresponding circumferential surface of the spindle part in the state of use. When the spindle part is mounted and passed through the opening of the sealing projection, this is preferably expanded elastically to the necessary diameter size with the sealing projection sealing in the area of its opening edge.

A counter-locking projection is formed on the spindle part, which widens conically in cross-section from axially above to axially below. The conical widening can provide an assembly aid for mounting the spindle part in the device housing, for example in the form of a control bevel to enable overrunning of the locking projection on the housing side. The counter-locking projection can further axially limit the locking recess on the spindle part side.

In the assembly and use position, the counter-locking projection extends in an axial area between the locking projection on the housing side and the sealing projection, so that the counter-locking projection is also overlapped by the sealing projection. Overall, this can result in an arrangement in which the counter-locking projection of the spindle part is virtually enveloped by the sealing projection provided axially above and the locking projection of the housing provided axially below.

As a result of the proposed solution, a favorable and effective seal is achieved. The sealing area is formed, viewed in the axial direction, between the locking area between the spindle part and the device housing, which allows rotation of the spindle, and the mass carried by the carrier within the device housing, correspondingly axially above the locking area and axially below the mass. This also results in a preferably, at least essentially, gas-tight seal of the mass area with respect to the locking area between the spindle part and the device housing.

The locking projection has a radially inner end surface and the sealing projection has a radially inner sealing surface. The sealing surface is designed - with reference to the longitudinal axis - on the same or a smaller radius than the end surface. Accordingly, in a cross-section through the device, the sealing surface is arranged with a maximum of the same, smaller distance to the longitudinal axis, viewed transversely to the longitudinal axis, compared to the arrangement of the end surface on the locking projection side.

In this case, such a distance dimension, for example a radial dimension, of the inner sealing surface to the longitudinal axis can correspond, for example, to approximately 0.8 to 1 times, furthermore, for example, to 0.9 to 0.98 times the relevant distance dimension of the inner end surface to the longitudinal axis.

In a further embodiment, the spindle part can also integrally form a lower base that covers an entire lower surface. This spindle part base can be formed, for example, by a handle cover and, according to a preferred embodiment, can be in complete axial overlap with a facing housing base at least in a predetermined rotational orientation of the spindle part, in particular the rotary handle. In a rotational position of the spindle part or the rotary handle deviating from the predetermined rotational orientation, at least a partial axial overlap with the housing base can result, in particular with the immediate surrounding area of the sleeve part.

According to one possible embodiment, the spindle and the rotary handle can form the spindle part as a single piece and, more preferably, of the same material. Alternatively, the rotary handle and the spindle can also be designed separately. For example, the spindle part consisting of the rotary handle and spindle is created as a result of a rotationally fixed plug-in assignment during assembly of the device.

The rotary handle or the spindle part can interact with the housing base in a locking manner, but can be overrun, to ensure stable maintenance of a rotary position. The predetermined locking position - or the plurality of locking positions - can predetermine and lock at least one, preferably several, for example two defined basic rotary positions of the rotary handle relative to the device housing. Such a design can be particularly advantageous in the case of a device with a non-circular design in plan, in which the device housing and the rotary handle have the same outline contours. The defined locking of the rotary handle can thus be provided where the rotary handle and device housing are preferably aligned with the same contour. Furthermore, this can result in the same angle of rotation of the rotary handle between two rotary locking positions that follow one another in one direction of rotation, and correspondingly the same linear displacement distances of the support carrying the mass.

For this purpose, further locking formations on the housing side and counter-locking formations on the rotary handle side can be provided. In the respective In the basic rotation position, the locking formations and the counter-locking formations enter a locking position which can preferably be overrun by the user at will.

A surface support of the rotary handle on a lower surface of the housing base can be provided at least in a region radially inward to the locking formation, wherein such a support region is preferably provided concentrically to the longitudinal axis and completely circumferentially.

In a further embodiment, alternatively or, as preferred, in combination with a radially inner support, a circular ring-shaped area can be provided radially outside a locking formation, on which the housing base and the rotary handle can lie directly against one another. This can accordingly result in a comparatively large-area support.

For example, a locking formation and a counter-locking formation can each have a circular outline, with one formation being designed as a cup-like depression into which the other formation can engage in the manner of an adapted elevation.

In a preferred embodiment, two locking formations are provided on the underside of the housing base and two counter-locking formations are provided on the handle, so that two defined basic rotational positions can result in the direction of rotation of the rotary handle.

The locking formations, as well as the counter-locking formations, can be arranged diametrically opposite one another with respect to the longitudinal axis.

The ranges or value ranges or multiple ranges specified above and below also include all intermediate values with regard to the disclosure, in particular in 1/10 steps of the respective dimension, and therefore also dimensionless if necessary. For example, the specification 0.2 to 0.6 times also includes the disclosure of 0.3 to 0.6 times, 0.2 to 0.5 times, 0.3 to 0.5 times, etc. This disclosure can serve on the one hand to delimit a specified range limit from below and/or above, but alternatively or additionally to disclose one or more singular values from a respectively specified range.

Short description of the drawings

Fig. 1

in perspektivischer Darstellung eine Vorrichtung zur Ausbringung einer Masse;

Fig. 2

den Schnitt gemäß der Linie II-II in Figur 1 durch eine Vorrichtung in einer ersten, erfindungsgemäßen Ausführungsform;

Fig. 3

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

Fig. 4

die Herausvergrößerung des Bereichs IV in Figur 2;

Fig. 5

die Herausvergrößerung des Bereiches V in Figur 4;

Fig. 6

die Vorrichtung der ersten Ausführungsform in perspektivischer Explosionsdarstellung;

Fig. 7

ein Spindelteil der Vorrichtung der ersten Ausführungsform in perspektivischer Einzeldarstellung;

Fig. 8

in einer Schnittdarstellung gemäß Figur 2 die Vorrichtung in einer zweiten Ausführungsform, die nicht erfindungsgemäß ist;

Fig. 9

den Schnitt gemäß der Linie IX-IX in Figur 8;

Fig. 10

die Herausvergrößerung des Bereichs X in Figur 8;

Fig. 11

die Herausvergrößerung des Bereichs XI in Figur 10;

Fig. 12

eine weitere der Figur 2 entsprechende Schnittdarstellung, jedoch die Vorrichtung in einer dritten Ausführungsform betreffend, die nicht erfindungsgemäß ist;

Fig. 13

den Schnitt gemäß der Linie XIII-XIII in Figur 12;

Fig. 14

die Herausvergrößerung des Bereichs XIV in Figur 12;

Fig. 15

die Herausvergrößerung des Bereichs XV in Figur 14;

Fig. 16

in perspektivischer Darstellung eine Spindel und einen Träger der Vorrichtung gemäß Figur 12 in einer Vormontagestellung;

Fig. 17

eine der Figur 16 entsprechende Darstellung, jedoch die Montagestellung betreffend.

The invention is explained below with reference to the attached drawing, which, however, only shows exemplary embodiments. A part that is only explained in relation to one of the exemplary embodiments and is not replaced by another part in a further exemplary embodiment due to the special feature highlighted there, is therefore also described for this further exemplary embodiment as a possible existing part. The drawing shows:

Fig.1

in perspective view a device for dispensing a mass;

Fig. 2

the section along line II-II in Figure 1 by a device in a first embodiment according to the invention;

Fig.3

the section along line III-III in Figure 2 ;

Fig.4

the enlargement of area IV in Figure 2 ;

Fig.5

the enlargement of area V in Figure 4 ;

Fig.6

the device of the first embodiment in a perspective exploded view;

Fig.7

a spindle part of the device of the first embodiment in a perspective individual view;

Fig.8

in a sectional view according to Figure 2 the device in a second embodiment which is not according to the invention;

Fig.9

the section according to line IX-IX in Figure 8 ;

Fig.10

the enlargement of the area X in Figure 8 ;

Fig. 11

the enlargement of area XI in Figure 10 ;

Fig. 12

another of the Figure 2 corresponding sectional view, but concerning the device in a third embodiment which is not according to the invention;

Fig. 13

the section along line XIII-XIII in Figure 12 ;

Fig. 14

the enlargement of area XIV in Figure 12 ;

Fig. 15

the enlargement of area XV in Figure 14 ;

Fig. 16

in perspective view a spindle and a carrier of the device according to Figure 12 in a pre-assembly position;

Fig. 17

one of the Figure 16 corresponding representation, but concerning the mounting position.

Description of the embodiments

Shown and described is a device 1 for dispensing a mass 2, for example in the form of a deodorant stick.

The device 1 further comprises in particular a device housing 3 and a rotary handle 4.

The overall preferably solid and stable mass 2 sits in the device housing 3, immediately surrounded by a housing wall 6 of the device housing 3, on a movable carrier 7. When not in use, the mass 2 located on the carrier 7 can be covered by a cover cap 5.

The carrier 7 is movable via a travel arrangement 8 along a longitudinal axis x, which preferably also forms a central longitudinal body axis of the device 1, between a lowest starting position, as shown for example in the Figures 2 and 3 , but also further, for example, in the Figures 8 and 9 and 12 and 13, and an upper extended position. This extended position is shown in the illustration according to Figure 2 (first embodiment of the device 1 according to the invention) is indicated in dash-dotted lines.

The upper extended position can be a maximum upper extended position. In this case, the carrier 7 can come to rest on a stop 55, preferably formed as a radially projecting circular disk, assigned to an upper end of the spindle 14.

The device housing 3 as a whole essentially determines the shape of the device 1, wherein, with reference to a floor plan in which the longitudinal axis x is represented as a point, the device 1 and in particular the device housing 3 can have an oval outer contour, with a longitudinal extension direction L and a narrow extension direction S viewed transversely thereto.

The cover cap 5 overlaps in the covering position (compare for example Figure 2 ) a housing opening 9 through which the longitudinal axis x passes through the center, through which the mass 2 can be moved into a usable protruding position via the displacement arrangement 8 after removal of the cover cap 5.

The carrier 7 is preferably contoured to the circumference of the inside of the circumferential housing wall 6. The carrier 7, which can be moved like a piston in a direction of travel r along the longitudinal axis x, can in particular have a closed central region 10. In addition, the surface 11 facing the mass 2, on which the mass 2 is supported in the device 1, can be completely closed. A circumferential wall 12 of the carrier 7 can rest on the facing inner surface of the housing wall 6 in the manner of a lip.

In an alternative embodiment, an at least partially open carrier 7 can also be provided, possibly with the exception of the central region 10, through which, for example, the device 1 can be filled with mass 2. Such a filling can be carried out, for example, in an overhead position of the device 1 provided with a cover cap 5.

The mass 2 can also be sealed, in particular before first use, for example by a foil-like seal 13 (see, for example, the embodiments according to the Figures 2 and 12 ) cap-like. Such a seal 13 can serve as an authenticity seal, but also as a base for filling the device housing 3 with mass 2 in an overhead position during the introduction of mass 2 into the device housing 3. In addition, such a seal 13 offers a particularly gas-tight seal of the space surrounding the mass 2 to the outside before first use.

As an alternative to a seal 13, the cover cap 5 itself can also be used for sealing. The cover cap 5 has a sealing lip 54 that acts on the inner surface of the housing wall 6 in the area of the housing opening 9 (see Figures 8 and 9 ).

The travel arrangement 8 has in particular a spindle 14 with a spindle axis which coincides with the longitudinal axis x in the use position of the device 1. The spindle 14 is connected to the rotary handle 4 in a rotationally fixed manner at least in the use position of the device 1 and together with it forms a spindle part 15.

According to the embodiments shown, the rotary handle 4 can have an adapted oval plan in the case of a preferably oval plan of the device 1 and is further preferably positioned on the underside of a housing base 16 aligned transversely to the longitudinal axis x.

According to the Figures 1 to 11 In the embodiments 1 and 2 shown, the rotary handle 4 can form a sleeve 17 concentrically to the longitudinal axis x, which penetrates the housing base 16 in the region of a central base opening 18 in the direction of the housing interior.

The sleeve 17 can, as is also preferred, be formed in one piece and of the same material with a handle cover 19 which, surrounding the sleeve 17, extends radially outward from the latter and into a cross-section according to Figure 2 or 8th handle wall 20 running essentially parallel to the longitudinal axis x. Accordingly, the rotary handle 4 has an overall pot-shaped design with a pot opening pointing downwards.

As can be seen particularly from the sectional views in the Figures 2 and 3 (first embodiment of the device 1), the sleeve 17 can also extend downwards beyond the handle cover 19 into the space surrounded by the handle wall 20, for example over a length viewed in the direction of the longitudinal axis x, which can correspond to approximately one fifth to one third of the height of the handle wall 20 viewed in the same direction.

The sleeve opening can be designed to be closed downwards in the direction of the space surrounded by the handle wall 20, for example directly by the handle cover 19, for example according to the embodiment in Figure 10 or by inserting a separate plug-in cap 21, for example one held in place by a locking or friction fit.

In the illustrated first embodiment ( Figures 1 to 7 ) the sleeve 17 is preferably integrally formed with an axial distance to the handle cover 19 and of uniform material into the spindle 14. The sleeve 17 forms a spindle base 22 which is in particular larger in diameter than the spindle 14, wherein the foot-side connection of the spindle 14 is made in particular in the region of a sleeve cover 23 which partially covers the sleeve 17.

In the in the Figures 8 to 11 In the second embodiment shown, the spindle 14 and the rotary handle 4 are designed in two parts. These parts are connected to one another in a rotationally fixed manner during assembly of the device 1, in particular as a result of inserting the spindle 12 from above along the longitudinal axis x into a plug-in receptacle 24 of the rotary handle 4 that is formed concentrically to the longitudinal axis x. The plug-in receptacle 24 is preferably surrounded at a distance by the sleeve 17.

The relevant end region 25 of the spindle 13 is preferably designed non-circular in a cross section transverse to the longitudinal axis x by flat sections (see also Figures 16 and 17 ), whereby with a corresponding internal geometry of the plug-in receptacle 24 a rotationally fixed connection between spindle 14 and rotary handle 4 can be achieved.

Irrespective of the previously described design of the spindle part 15, the external thread of the spindle 14 interacts with an internal thread of a sleeve part 26. This sleeve part 26 is firmly connected to the carrier 7, preferably due to a one-piece and uniform material design with the carrier 7. Spindle 14 and sleeve part 26 form the travel arrangement 8.

The sleeve part 26 preferably extends underside of the surface 11, wherein in the normal state of use a downwardly pointing End 27 of the sleeve part 26 can define a stop for the lower starting position.

In a device 1 according to the first embodiment, this sleeve part end 27 interacts with the sleeve cover 23 of the one-piece spindle part 15 to limit the stop (see Figure 2 ).

A rotation of the rotary handle 4 about the longitudinal axis x thus causes a linear displacement of the carrier 7 in the travel direction r due to the rotationally fixed guidance of the carrier 7 along the housing wall 6.

A rotational guide of the spindle part 15 on the device housing 3 can be provided by engagement of a locking projection 28 formed in the area of the housing base 16 in a locking recess 29 of the spindle part 15 (see in particular enlarged illustration in Figure 5 ).

The locking projection 28 can be designed to point radially inwards essentially directly at the level of the housing base 16, optionally simultaneously defining the base opening 18. The radially inwardly directed end surface 30 of the locking projection 28 can form the opening edge and optionally come into contact with a facing back surface 31 of the locking recess 29, this on a radius a - based on the longitudinal axis x.

The locking projection 28 can be covered in the axial direction by a counter locking projection 32 which is formed on the outside of the sleeve 17 of the spindle part 15 and which widens conically from axially above to axially below to form a control slope 33. The control slope 33 serves in particular the assembly of the spindle part 15 in cooperation with a counter-control bevel 34 underside of the housing-side locking projection 28.

The end face 35 of the counter-locking projection 32, which faces radially outwards and, for example, runs concentrically to the longitudinal axis x, is formed on a radius c, which radius c is selected to be larger, for example by a factor of 1.05 to 1.1, than the radius a of the end face 30.

The control slope 33 of the counter-locking projection 32 merges axially upwards into a circumferential surface 36 of the spindle part 15 or the sleeve 17, which runs concentrically to the longitudinal axis x. A sealing projection 37 on the housing side rests against this circumferential surface 36, which in the first embodiment shown can be lip-shaped in cross section.

The sealing projection 37 is preferably sleeve-shaped overall with a cross-section according to Figure 5 at least partially axially upwardly resulting tapering section 38, which extends at least partially according to a cone.

The sleeve-shaped sealing projection 37 can, as is also preferred, be formed on the upper side of the housing base 16, with a foot section 39 that may be concentric to the longitudinal axis x, surrounding the counter-locking projection 32 of the spindle part 15 at a distance. From this foot section, the tapered section 38 extends axially upwards and inclined radially inwards, with the end of the sealing projection 37 coming to rest sealingly on the peripheral surface 36 of the spindle part 15 with a radially inner sealing surface 40.

The sealing surface 40 is arranged on a radius b which is selected to be smaller than the radius a of the end surface 30 of the locking projection 28, as well as smaller than the radius c of the end surface 35 of the counter-locking projection 32. For example, the radius b can correspond to approximately 0.8 to 0.98 times, furthermore, for example, approximately 0.85 to 0.95 times the radius dimension a.

In addition, the sealing area between the sealing projection 37 and the peripheral surface 36 of the spindle part 15 - viewed from the rotary handle 4 - is positioned axially above the locking between the locking projection 28 and the locking recess 29, while a possible counter-locking projection 32 of the spindle part 15 can be arranged between the sealing area and the locking area described above.

In the embodiments of the Figures 8 to 17 the device housing 3, in particular the housing base 16, forms a sleeve section 41 surrounding its base opening 18, which is directed axially upwards into the housing interior, as viewed from the rotary handle 4, and is concentric with the longitudinal axis x. This can, as is also preferred, be formed in one piece and of the same material with the housing base 16 and also with the housing wall 6.

This sleeve section 41 projects beyond the Figures 8 to 11 In the second embodiment of the device 1 shown in FIG. 1, the housing bottom-side sleeve 17 in the axial direction and forms a guide 42 for the spindle 14 at the end, which is concentric to the longitudinal axis x, at an axial distance from the plug-in receptacle 24 for the end region 25 of the spindle 14. In the region of the downward-pointing end, the guide 42 engages with radially inward-pointing Locking projections 43 in a circumferential groove of the spindle 14 forming a locking recess 44.

The locking and sealing between the rotary handle 4 and the device housing 3, in particular the housing base 16, is achieved in this second embodiment in particular between the housing-side sleeve section 41 and the handle-side sleeve 17 (see in particular enlarged illustration in Figure 11 ).

Thus, as in the first embodiment described above, the housing base 16 also forms a locking projection 28 which essentially simultaneously delimits the base opening 18 all the way around and which enters a locking recess 29 of the sleeve 17 on the outside of the wall in an axial direction.

Viewed from the rotary handle 4, a sealing arrangement is also provided axially above this locking mechanism, wherein a sealing projection 37 formed on the inside of the wall of the sleeve section 41 comes into contact with the peripheral surface 36 with its sealing surface 40 in the region of a facing groove-like circumferential recess of the handle-side sleeve 17.

According to this design, the radially inner sealing surface 40 of the sealing projection 37 and the radially inner end surface 30 of the locking projection 28 can lie on a circular line concentric to the longitudinal axis x with approximately the same radius a and b respectively (compare Figure 11 ).

In the Figures 12 to 17 In the third embodiment shown, the handle cover 19 is lowered centrally in a pot-like manner. This results in a circumferential, vertically downward directed pot wall 45, which ends in a transverse to the Longitudinal axis x aligned pot base 46. In this embodiment, the plug receptacle 24 is formed on the pot base 46 pointing into the interior of the sleeve section 41.

The wall of the sleeve section 41 is further formed axially downwards beyond the housing base 16, extends within the pot-like formation of the handle cover 19, radially inwardly essentially flanking the pot wall 45.

The cross-section as shown in Figure 15 The downwardly pointing end of the sleeve portion 41 forms the sealing projection 37, wherein the resulting downwardly free sealing edge 47 of the sealing projection 37 in this cross section is preferably sealingly U-shaped and enclosed by the spindle part 16, in particular here the cup-shaped configuration of the rotary handle 4.

As can be seen particularly from the magnified view in Figure 15 As can be seen, the sealing projection 37 is flanked both radially on the inside and radially on the outside by a U-leg 48, 49 and is supported on the underside by the pot base 46 which connects the U-legs in a web-like manner. The radially outer U-leg 49 is preferably formed by the pot wall 45. The radially inner U-leg 48 extends, like the pot wall 45, concentrically to the longitudinal axis x, but over a height viewed in the axial direction which can correspond to approximately 0.4 to 0.6 times the height of the pot wall 45. In particular, this radially inner U-leg 48 acts in a sealing manner with the sleeve section 41, in particular with the end sealing projection 37 and the sealing edge 47. In addition, a seal can be formed between the sealing edge 47 and the radially outer U-leg 49 and/or the U-web formed by the pot bottom 46.

The sealing edge 47, which cooperates in particular with the U-leg 48, preferably runs on a radius d which can correspond to approximately one eighth to one fifth of the largest inner diameter e of the device housing 3 in the longitudinal direction L.

The radially outer U-leg 49 or the pot wall 45 can simultaneously form a locking recess 29 pointing inwards for the engagement of a radial extension of the sealing projection 37. This radial extension acts as a locking projection 28.

Also - viewed from the rotary handle 4 - a radially inwardly projecting counter-locking projection 32 can be formed axially above the inner U-leg 48 on the spindle part 16, in particular on the pot wall 45 of the rotary handle 4, which engages in a corresponding counter-locking recess 50 of the sleeve section 41. This counter-locking formation 50 is accordingly positioned, viewed in the axial direction, between the base-side sealing zone of the sleeve section 41 and the locking mechanism, which is preferably also provided in this area, and the housing base 16 or the handle cover 19.

With a preferred non-circular floor plan of the device 1 and a corresponding non-circular floor plan of the rotary handle 4, basic rotary positions of the rotary handle 4 can be preferred in which the rotary handle 4 lies in the direction of the longitudinal axis x essentially in overlap with the associated device housing 3. Thus, with an oval floor plan design, as also shown, two basic rotary positions of the rotary handle 4. These can, as further preferred, be defined by an overrunnable catch. For this purpose, a lower surface 51 of the housing base 16 facing the handle cover 19 of the rotary handle 4 can have a catch formation 52 in the form of a raised portion, which in one of the basic rotary positions of the rotary handle 4 can fall into a preferably form-adapted counter-catch formation 53 in the form of a cup-like depression in the area of the handle cover 19.

In the illustrated embodiments, there are preferably circular ring-shaped regions both radially inside and radially outside of the locking formations 52 or the counter-locking formations 53 with respect to the longitudinal axis x, in which regions the housing base 16 or the lower surface 51 of the housing base 16 can rest directly on the rotary handle 4 or its cover 19 in a supporting manner.

Two such locking formations 52 and counter-locking formations 53 can be provided essentially diametrically opposite each other.

The locking position resulting from the engagement of the locking formation 52 in the counter-locking formation 53 can be easily overridden by intentionally rotating the rotary handle 4.

List of reference symbols

1 contraption 29 Recess 2 Dimensions 30 Finishing surface 3 Fixture housing 31 Back area 4 Rotating handle 32 Counter-locking projection 5 Cover cap 33 Control slope 6 Housing wall 34 Counter steering slope 7 carrier 35 Frontal area 8th Travel arrangement 36 Circumferential area 9 Housing opening 37 Sealing projection 10 central area 38 Rejuvenation section 11 Area 39 Foot section 12 Wall 40 Sealing surface 13 seal 41 Sleeve section 14 spindle 42 guide 15 Spindle part 43 Locking projection 16 Case back 44 Recess 17 Sleeve 45 Pot wall 18 Floor opening 46 Pot bottom 19 Handle cover 47 Sealing edge 20 Handle wall 48 U-leg 21 Insert cap 49 U-leg 22 Spindle base 50 Counter-locking recess 23 Sleeve cover 51 Bottom surface 24 Plug-in socket 52 Latching formation 25 End area 53 Counter-locking formation 26 Sleeve part 54 Sealing lip 27 End 55 attack 28 Locking projection a radius b radius c radius d radius e radius r Travel direction x Rotation axis L Longitudinal direction S Narrow extension direction

Claims (9)

1. A device (1) for discharging a substance (2), wherein a movable support (7) is arranged in a device housing (3) to act on the substance (2), wherein a rotary handle (4) is further designed to move the support (7) between a lower starting position and an upper extended position of the support (7), and forms a spindle part (15) with a spindle (14) that can be rotated around a longitudinal axis (x) provided in the movement direction of the support (7), wherein the spindle part (15) passes through a housing base (16), and is locked and sealed to the housing base (16), wherein a locking protrusion (28) of the housing base (16) further engages into a locking recess (29) of the spindle part (15), and a seal protrusion (37) running from the housing base (16) abuts tightly against a circumferential surface (36) of the spindle part (15), and wherein the rotary handle (4) of the spindle part (15) is additionally formed on the lower face of the device housing (3), wherein, viewed from the rotary handle (4), the locking recess (29) of the spindle part (15) is formed axially below the circumferential surface (36) that interacts with the seal protrusion (37), wherein the seal protrusion (37) further has a sleeve-like design, with a taper (38) that arises at least partially axially upwardly in cross section, wherein the taper (38) runs at least partially like a cone, wherein a counter-locking protrusion (32) is formed on the spindle part (15), and conically expands from axially above to axially below in cross section, wherein a control slant (33) of the counter-locking protrusion (32) further transitions axially upward into a circumferential surface (36) of the spindle part (15) or the sleeve (17) that runs concentrically to the longitudinal axis x, wherein the housing-side seal protrusion (37) abuts against this circumferential surface (36), which is molded onto the upper face of the housing base, and surrounds the counter-locking protrusion (32) of the spindle part (15) with a foot section (3) that runs concentrically to the longitudinal axis x, wherein a radially outer facing front surface (35) of the counter-locking protrusion (32) is formed on a radius (c), which is selected to be larger than a radius (a) of an inwardly directed closing surface (30) of the locking protrusion (28), characterized in that the foot section (39) surrounds the counter-locking protrusion (32) at a distance, that the tapering section (38) extends from the foot section and bends axially upward and radially inward, that a radially inner seal surface (40) of the seal protrusion (37) comes to tightly abut against the circumferential surface (36) of the spindle part on the end side of the tapering section (38), and that the seal protrusion (37) is designed like a lip in cross section, wherein the seal surface (40) is here arranged on a radius (b) that is selected to be smaller than the radius (a) of the closing surface (30) of the locking protrusion (28), which is also selected to be smaller than the radius (c) of the front surface (35) of the counter-locking protrusion (32).
2. The device according to claim 1, characterized in that the locking protrusion (28) has a radially inner closing surface (30) and the seal protrusion (37) has a radially inner seal surface (40), and that the seal surface (40) is formed on the same or a smaller radius (b) as the closing surface (30).
3. The device according to one of the preceding claims, characterized in that the spindle part (15) at the same time integrally forms a lower floor that covers an entire lower surface.
4. The device according to one of the preceding claims, characterized in that the rotary handle (4) and the spindle (15) are designed separately.
5. The device according to one of the preceding claims, characterized in that the rotary handle (4) interacts with the housing base (16) in a locking, yet overrunable, manner so as to maintain a stable rotational position.
6. The device according to claim 5, characterized in that the housing base (16) has an undersurface (51), and that the undersurface (51) of the housing base (16) has one or several locking formations (52), which interact with one or several counter-locking formations (53) of the rotary handle (4), and that a circularly circumferential area is provided at least radially inside of a locking formation (52), in which the housing base (16) and the rotary handle (4) directly abut against each other.
7. The device according to claim 6, characterized in that a circularly circumferential area is provided radially outside of the locking formation (52), in which the housing base (16) and the rotary handle (4) directly abut against each other.
8. The device according to one of the claims 6 or 7, characterized in that two locking formations (52) are provided on the undersurface (51) of the housing base (16), and two counter-locking formations (53) are provided on the handle (4).
9. The device according to claim 8, characterized in that the locking formations (52) as well as the counter-locking formations (53) are each arranged diametrically opposite each other in relation to the longitudinal axis (x).

Images