EP0922499B1 - Fluid dispenser - Google Patents

Abstract

The dispenser comprises fastenings which secure at least one basic body (12) in at least one receptacle (2). The basic body and or the fastenings are supported on the outer end surface (4) and have only one support flange (33) with a support surface (36) facing away from one flange outer surface (39). The basic body protrudes outwards over the flange outer surface. The outermost end surface (27) especially extends outwards as far as the plane of the flange outer surface. Preferably a basic body and the fastenings protrude by at the most 1 to 3 mm beyond the support surface. The basic body has, at a distance from its inner end, a thin holder flange (31) protruding radially beyond its outer periphery.

Description

The invention relates to a discharge device for media according to the preamble of claim 1. The respective Medium can be stored and / or discharged in have any essential physical states or a Form mixture of such physical states, which, for. B. liquid, can be pasty, gaseous and / or powdery, in particular such that they are flowable. Such Discharge device, which can be elongated, is appropriate in this longitudinal direction in one or more vessel openings one or more storage vessels used, each after whether only one medium, separate media from separate storage vessels or from a storage vessel Separate media batches are carried out via separate channels should be.

The discharge device can be used according to the invention with about 3/4 of the Length of their in discharge operation compared to the storage vessel in essential fixed body in the storage vessel protrude while remaining with the rest of this Length, namely with more than a quarter or a third protrudes beyond the outside of the storage vessel. To the inner end of the body can still be one in the mentioned Total length of suction channel not included, e.g. B. inserted or formed in one piece with the base body his. The total length mentioned is in particular also by the distance between a valve seat of an intake valve and to determine the outer end face of the base body, then the base body over the outside of the vessel usually protrudes by more than a third of this total length.

As a result, the entire discharge unit is compared to the total length of the storage vessel by the specified amount and by the Length of one adjoining the outer end of the base body Actuating head larger, creating a considerable Length difference exists between such Storage vessels, the vessel opening to expose the media discharge or to be opened and those that have an additional Discharge device with one opposite the vessel opening have significantly narrowed discharge channel. Such discharge devices can a compared to the storage vessel essential pouring spout, a dosing device for the medium, a pressure source for pressurization of the storage vessel, a self-priming discharge device and / or a discharge pump, the Inlet valve at the same time as the outlet valve of the storage tank forms up to which the medium from the storage container without obstruction by further valves or the like. can flow. If necessary, two separate Base body or discharge devices to form a structural unit summarized and arranged on one and the same storage vessel become.

The respective vessel opening of the storage vessel or one other hollow body can cross through a breakthrough opposite to the direction of the vessel wall a narrowed, vessel-shaped vessel neck and / or formed by one end of a cup-shaped open vessel be the end that may be slightly expanded from this essentially constant to approximately its bottom Has inside width. For the intervention or the securing of the position the discharge device, the storage vessel forms reference surfaces, against which to support the discharge device is. Such reference surfaces can pass through the vessel opening surfaces and / or surrounding the outside of the storage vessel the inner surface of the vessel opening or the storage vessel be formed, the respective reference surface one for Longitudinally transverse end face and / or one around Longitudinally curved inner or outer circumferential or Lateral surface can be.

To secure the position of the discharge device against the Storage vessel in the longitudinal direction and / or to secure against Rotational movements of the base body of the discharge device fastening means are provided opposite the storage vessel, which after inserting the discharge device in brought their attachment state and therefore from the outside should be accessible to the assembled unit or both on the outside of the discharge device and attack on the outside of the storage vessel. In the event of A Crimean ring should face away from each other of mutually supported ring flanges of the base body and embrace the storage vessel and also the outer circumference embrace this ring flange. In the case of a plug or Screw cap should secure this in the outer circumference of a neck of the vessel engage and on the end faces mentioned the discharge device. At the same time the fasteners for fastening against the The main body can usually be moved, provided that it moves during transfer in the attachment state not opposite the storage vessel should move or rotate.

Through EP-A-0 571 280 one with a securing flange fastened discharge device, in which the safety flange the ventilation opening opposite the Cavity of the support body closes, although the inner jacket the casing of the discharge device with radial spacing surrounds. The securing flange is also much thicker than the housing jacket or the support body, the Locking jacket is not radially constricting or resilient, so that it does not transmit any corresponding transverse stresses.

According to US-A-3 129 854, the housing jacket has on the circumference foldable ribs for braced support on the inner circumference of the supporting body. In addition, a separate locking sleeve provided for a corresponding radial tension his. A ventilation system for the support body has this Training not on.

The invention is also based on the object of a To create discharge device, in which disadvantages are known Training or possibly the type described avoided are and especially when it comes to simple training significant reduction in the total length of the composite Discharge unit allowed.

According to the invention, the features according to claim 1 intended. Means are provided for the discharge device in the appropriate orientation on the hollow body or the like. to keep. For example, can the discharge device in at least a functional state compared to known training much deeper in the vessel sunk in longitudinal, transverse and / or Circumferential direction secured or relative to the vessel or another recording held essentially rigid become. Functional positions can be discharge positions, where a discharge is possible, or they can have rest positions in which discharge is prevented, so that for a discharge first a transfer to a Discharge is required.

For example, the base body of the discharge device can be so deep the storage vessel are sunk that he only about this even less than a quarter or less than one Tenths of the total length protrudes, with between These two values are integers depending on the requirements Quotient can be advantageous. In particular it says the base body over the outside surrounding the vessel opening of the storage vessel expedient only by the thickness of one single-layer or multi-layer wall, the wall layers abut directly against each other, with a wall layer can be formed by a seal. This thickness is expediently less than 3 or 2 or 1 mm, or corresponds approximately the wall thickness of at least one freely within the storage vessel lying housing or casing of the discharge device.

If the discharge device has one to be operated for the discharge, z. B. to be shifted approximately in said longitudinal direction Actuating head or the like on, this can in the respective functional position of the discharge device or in at least one of his resting or working positions with the most of its length over the named outside of the Protrude storage vessel or protrude into the storage vessel, also being essentially completely in the storage vessel recessed position of the actuating head is conceivable.

The securing means expediently have means for positive locking Longitudinal support of the discharge device compared to the Storage vessel on, these support means or their Support surfaces approximately in the plane of the outer end of the base body lie and / or can be connected to it, In contrast, however, the connection is expedient in the longitudinal direction is offset, e.g. B. towards the inner end of the Body. The securing means can on the outside and / or Lie inside the vessel, and this needs no opening, recess or groove for the intervention inside the means of protection. This is also an expansion of the Vessel not required, although providing one Deepening is conceivable.

The securing means can be centering means for radial, if necessary preloaded or radial play-free system on the inside of the storage vessel, which expediently by at least one longitudinal leg or jacket are formed, the at an axial distance from the axially acting support means to the Basic body connects. The centering means can also be used for the system is provided on the outside of the storage vessel be, these centering means are advantageously less than the inner centering means are towards the inner one Protrude less far from the end of the body than the inner ones Longitudinal connections or centering means.

Between the inner centering means or one in the vessel opening or the jacket engaging the storage vessel and the outer circumference of the base body can one to the outer End or outward opening or recess formed be in which z. B. the actuating head in at least one can intervene in its operating The appropriately tight closed bottom of this opening lies like the longitudinal leg inside the vessel or neck of the vessel and can at the same time the connection between the securing means and form the base body.

The securing means are advantageously designed so that through it no or no significant radial force on the Basic body is exercised so that this through the radial Security forces are not charged. For example, the internal connecting or centering means in one Range of radial loads due to the inner circumference of the Storage vessel free or radially essentially free of tension be in which they are connected to the main body are. Furthermore, the inner centering means can be profiled that any radial loads caused by the Do not transfer the storage vessel to the base body, but rather be absorbed by resilient compliance so that only the centering means, but not the base body, are deformed become. For this purpose, the centering means can be used with the Base body in cross section a U-profile with a radial form outer and a radially inner leg, one this leg, especially the outer leg, does not straight through but on its inside and / or Outside is angled or curved.

The discharge device has one of a main housing separate housing termination at the outer end or the like. on the z. B. forms the outer end of the base body, so the Securing means with this housing closure and only bearing with this main closure with the main housing be connected. The securing means are appropriate together with the housing end a mounting unit for Attachment to the main housing or with the main housing Mounting unit for attachment to the vessel. In the assembled state can the securing means essentially stable provided against the housing end or the housing and can also be formed in one piece with this.

The securing means are expediently designed as plug-in means, which essentially consists exclusively of a linear plug movement approximately parallel to the longitudinal direction of the Discharge device in its final securing engagement can be brought with the storage vessel instead of one Rotary movement over part of a full rotation or one or need several full turns. The means of protection can therefore be completely free of threads, bayonet lock links, Snap links or similar securing profiles be, although their application is also conceivable is. This also applies to conical support surfaces, in particular those for support on the inside of the storage vessel or the neck of the vessel, these support or centering surfaces in the area of the system around the storage vessel parallel to the direction of insertion or to the counter surface of the storage vessel lie and in contrast at the most around the one Angles of less than 1 ° or 2 ° are provided obliquely, which is used as a draft angle during production in one Mold is common.

Regardless of the training described, the discharge device also sealing means for essentially sealing Have closure of the vessel opening, which is formed are as described with the aid of the securing means. These closures can be used non-destructively with the securing means or the like only by a trigger movement. detachable in the Intervene containers so that they together with the discharge device completely removed from the container can. The closure means and the securing means are expedient formed by one and the same means.

The training according to the invention is particularly for discharge devices suitable as z. B. in EP-A-0 530 785 or DE-A-3 545 409 are described, on their features and effects for the purpose of inclusion in the present Invention is referred to. The discharge device can be so deep in the storage vessel that the Limiting them through the base body or a riser pipe or a flexible riser formed inlet opening is immediately adjacent to or at the bottom of the vessel Vessel bottom is supported in an area that is opposite the remaining floor areas is recessed so that a complete Emptying of the storage vessel is guaranteed.

Regardless of the training described, one can Cover or a non-destructive, easily removable closure provided for the discharge device or its media outlet be both for direct connection to the discharge device or the securing or closing means is also suitable, directly with a vessel or Hollow body to be connected if this is not with a Discharge device is provided. The cover is in the cover position secured to the discharge device so that for this backup the storage vessel is not required, e.g. B. in that the cover then only in the Discharge device or the securing means with position-securing surfaces engages and opposite the storage vessel can be non-contact. For the immediate closure of a Storage vessel appropriately overlaps the cover Neck on the outer circumference.

Regardless of the training described is also one Mounting arrangement for position securing means provided which two components easily or non-destructively detachable with each other connect. These securing means releasably have two in one another engaging security links, one of which is the one component and the other the other, removable component assigned. These fuse links can be in their Secured position on one of the components, especially on the removable one Component are assembled, after which this component on other component is attached in its securing position. The this other component associated fuse link brought into engagement with this component and due to the assembly movement secured against this component in a position so that it is when removing the removable component no longer detaches from the associated component, but the securing member releases the removable component. This is ensures a very simple assembly.

These and other features go beyond the claims also from the description and the drawings, wherein the individual features individually or separately several in the form of sub-combinations in one embodiment of the invention and in other fields be and can represent advantageous designs.

An embodiment of the invention is in the drawings shown and is explained in more detail below.

Fig. 1

eine erfindungsgemäße Austragvorrichtung in teilweise geschnittener Ansicht

Fig. 2

einen Ausschnitt der Fig. 1 in wesentlich vergrößerter Darstellung.

The drawings show:

Fig. 1

a discharge device according to the invention in a partially sectioned view

Fig. 2

a section of Fig. 1 in a substantially enlarged view.

The discharge device 1 is in the manner of a submersible pump essentially completely sunk in a supporting body or Storage vessel arranged so that the pump housing in essentially completely within the interior of the Storage vessel 2 is. This storage vessel 2 has a essentially axially symmetrical circular vessel opening 3, which on the outside of the storage vessel 2 from one to their central axis lying transversely or at right angles Outside end face 4 is surrounded. Furthermore, it is in the Radial distance outward from an outer peripheral surface 5 surrounded, which is formed by a protruding ring bead and immediately or via a chamfer or rounding in the end face 4 merges. This is also how it works Vessel opening 3 delimiting inner peripheral surface 6 in the End face 4 over, this peripheral surface 6 by a radially inwardly projecting annular bead is formed and approximately in the same axial section as the peripheral surface 5 lies. The vessel opening 3 and the surfaces 4 to 6 are through a vessel neck 7 is formed, which at its from the vessel opening 3 turned end into a much expanded Vascular abdominal wall 8 of approximately the same wall thickness as the neck of the vessel 7 passes. This vascular belly 8 delimits with one part of the vessel neck 7 to the outside in the initial state in essential media or pressure-tight closed storage space 9 for receiving the medium to be discharged. The neck of the vessel 7 can be made very short and only about a length 2/10 of its outer width, the peripheral surfaces 5, 6 are shorter than half.

Securing means are used to fasten the discharge device 1 10 provided, like the discharge device 1, the vessel opening 3, the surfaces 4 to 6, the vessel neck 7 and the Vascular abdominals 8 lie approximately in a central or longitudinal axis 11 can.

The discharge device 1 has a substantially rigid position, on the associated fastening section 7 of the storage vessel 2 attached and hollow base body 12, which the mentioned housing forms and elongated along the longitudinal axis 11 compared to its largest outside width is at least 2 to 3 times longer. The base body 12 is from two basic body parts, namely a longer housing part 13 and a shorter closure part 14, the housing part 13 over the inner end of the closure part 14 with most of its length or more than 3/4 of which protrudes into the storage space 9 without contact. With Distance within the inner end of the closure member 14 limits the housing part 13 with the inside of its outside a media or wall adjacent to the storage space 9 Pressure chamber 15, which is provided as a pump chamber and in cross section is at least partially annular.

To actuate the discharge device so that medium is conveyed is carried out, an actuation unit 16th provided for manual operation partially outside of the base body 12 and the storage vessel 2, or in Area of the vessel opening 3 or through this manually is accessible. The actuation unit 16 has a slim, elongated shaft 17 on which the base body 12 or both housing parts 13, 14 at least partially penetrated and within this carries a slide 18. This is sealed as a pump piston 18, along the inner circumference of the pressure chamber 15 guided, which he at his front face limited. Introduces from the pressure chamber 15 Outlet channel 19 through the shaft 17 or to the base body 12 into an actuating head 20, which on the outside, essentially outside of the base body 12 end of the Shaft 17 only by a linear plug and / or Latching connection is secured, secured. The actuating head 20, which is accessible for manual actuation, has the outlet 21 leading to the outside for the medium, which in this case is directed radially outwards and completely sunk in the actuating head 20 Nozzle body or an atomizer nozzle is formed. This lies between the ends of the actuating head 20.

The slide or piston unit made of shaft 17, slide 18 and a core body used in this forms the to the Pressure chamber 15 adjacent, annular section of the outlet channel 19, which is between the inner circumference of the cuff-shaped slider 18 and the outer circumference of the Core body lies. This piston unit also constitutes Exhaust valve 22 located within the slide 18, which in Dependence on the displacement of the slide 18 and / or on Pressure in the pressure chamber 15 opens resiliently, by an annular Closing surface on the inner circumference of the slide 18 and one Counter surface is formed on the outer circumference of the core body and that with this valve closure the front end of the pressure chamber 15 or the rear end of the outlet channel 19 is determined.

By an outward longitudinal movement of the slide 18 relative to the shaft 17 or the one attached to it The core body opens the valve against the force of a valve spring so that it is under in the opposite direction Spring force closes again.

In the outwardly adjoining the sealing surface of the slide 18 and on the outer periphery adjoining space of the Base body 12, a ventilation valve 23 is provided, which at Starting position of the discharge device 1 media- or pressure-tight is closed and open in any other position, around through the base body 12 or along the shaft 17 a pressure equalization between the storage space 9 and the To create an outside atmosphere. The closure part 14 has one engaging in the interior of the housing part 13 Sleeve approach, the end of which forms the valve seat while the valve body through the outer periphery of the slide 18th is formed. The having the ventilation valve 29 and ventilation space sealed off from the pressure chamber 15 is over at least one opening in the wall of the housing part 12 open to storage room 9.

The discharge device 1 has inside the storage space 9 a media inlet 24 in the form of an inward direction Opening in the base body 12, which is expedient by a Forehead opening is formed. Depending on this inlet 24 Length of the storage space 9 a riser 25, z. B. a flexible or elastic hose, connect from the Base 12 distal end then forms the transition, in which the medium from the storage space 9 in the discharge device 1 occurs. Within the base body 12 or Housing part 13 is a pressure-dependent inlet valve 26 provided at the inner end of the pressure chamber 15 lies or forms this inner end with its valve seat.

That remote from the outlet 21 or within the storage space 9 lying end of the base body 12 forms its interior End 28, while the distal end is the outer end 27 forms and through the free outer end face of the housing 12th or the closure member 14 is formed. Outward means therefore to the outlet 21, to the outer end 27 or to the vessel opening 3 towards, and inward to the inner end means 28 to Vessel bottom or towards the vessel space 9.

The housing part 13 is from the inner end in the on the outer circumference further closure part 14 used, within this and with this via a plug or snap connection connected, does not protrude beyond the outer end 27 and is on Outer circumference of its inserted longitudinal section of one outer shell 29 of the closure member 14, which also the exposed outer circumference of the closure part 14 forms. This jacket 29 closes between its ends or then at its inner end to a safety flange 30, which essentially against outward forces only non-positively or frictionally secured in the Vascular neck 7 engages and against inward forces is supported positively and without play, so that when applied a correspondingly high pull-off force, the holding force of the securing flange 30 overcome and the discharge device 1 is removed from the storage vessel 2 non-destructively. The cross section of a hook or hanging profile with a Securing groove for receiving the neck 7 forming The securing flange 30 is only in one with the base body 12 single and very short axial area almost rigidly connected, the length of this axial area is significantly smaller than the outer wall of the housing part 14 and at most twice up to three times the wall thickness of the jacket 29 or the housing part 13. The closure part 14 has an annular disk-shaped adjoining its inner end or flat support flange 31, which over the to outer end 27 not expanded outer circumference of the casing 29 protrudes, has the mentioned axial extent, in one piece with the jacket 29 is formed and how the inner end of the remaining closure part 14 on its inner end face is completely non-contact. The boundary between that Base body 12 and the securing flange 30 is either by the outer circumference of the jacket 29 and / or that of Support flange 31 determined.

On the outer circumference of the support flange 31 includes a Radial distance from the jacket 29 and its outer circumference jacket 32 surrounding approximately its entire length, which, like the jacket 29, has one leg of a U profile in axial section or forms a longitudinal or wall part, wherein the jacket 29 to the end wall forming the outer end 27 of the closure part 14 connects, from the inside of the protrudes into the housing part engaging approach. In this the shaft 17 is slidably disposed. The outer end of the jacket 32 goes radially outward into a angular or hook-shaped part, with the jacket 32 on connects an end part or support flange 33, which a wall part or an annular end wall or a essentially flat plate that forms with its inner and / or outer, each approximately flat end face in a plane approximately perpendicular to axis 11 is located. The Wall thickness of the jacket 32 and the support flange 33 is approximately in the order of magnitude based on the support flange 31 described thickness. The support flange 33 forms a hook leg of the angular hook profile and goes on his radially outer end or on its outer circumference in one Leg or coat 34 over, which over its inner End face 36 protrudes approximately axially, but significantly less far than the jacket 32, namely less than half or a third of it. The mounting profile thus formed with Parts 31, 33 which are longitudinally offset from one another can form the base body Shield on the outer circumference and encompasses the neck of the vessel 7 on the inner circumference, on the outer circumference and on the outer End face, all of the wall parts 31 to 34 one-piece, completely sealed walls or legs form and the wall part 34 to achieve a higher spring compliance thinner than at least one of the remaining wall parts 31, 32, 33.

The one-piece with each other in any pairings or an assembly unit forming wall parts 32 to 34 form at least two or three transversely or approximately at right angles to each other as well as in recessed Alignment and support surfaces 35 merging into corners to 37, each of which one of the reference surfaces 6, 4, 5 is assigned so that it is at this with transverse voltage resilient. Of the U-shaped to each other The outer peripheral surface 35 of the wall part 32 lies flat in cross section essentially over the entire area of the associated Reference surface 6, but it is only proportional by one small axial section of this conversion part 32 and the associated peripheral surface. The essentially flat, annular disc-shaped support surface 36 lies with the most of its surface area, while that by an inner peripheral surface formed securing surface 37 of the wall part 34 only on one of a transition phase to the reference surface 4 adjoining part of the reference surface 5. The wall part 34, however, completely covers the reference surface 5 on the circumference and stands axially over this surface 5 to the storage space 9 a slightly funnel-shaped section.

At the inner end there is no contact with the vessel 2 Wall part 31 or 32 in a jacket profile 38, namely an acute angle on the inside or outside circumference tapered cone section over which with its narrower End in one piece to the support flange 31 and how the radially outer end of which is also opposite the vessel 2 is non-contact. This makes one in this area Stiffening of the wall part 32 relative to the base body 12 formed, which the transmission is directed radially inward Forces on the base body 12 prevented. Furthermore forms the jacket profile 38 an insertion bevel when inserting the Securing flange 30, the corresponding funnel-shaped Expansion of the vessel opening 3 can slide, the funnel shape being characterized by a phase between the reference surfaces 4, 6 is formed. The securing surface 35 is expediently inward at a few angular degrees of axis 11 approximated so that they only with transverse tension in the reference surface 6 engages when the support flange 31 within this reference surface 6 lies. The wall part 32 can under of this tension are narrowed slightly radially inwards, so that it seals only by its inherent spring force with respect to the reference surface 6. Mutual, too Engagement of the surfaces 4, 36 and 5, 37 acts tightly closing, so that a triple seal in the area given three spaced sealing gaps is and also the effects of a labyrinth seal result.

The away from the support surface 36 and only on the Wall thickness of the wall part 33 from the support surface 36 removed outer surface 39 is substantially planar or it lies approximately in the plane of the outer end 27, which is also offset inward relative to this outer surface 39 could be. The inner face of the wing 31 lies approximately in the level of the transition between the Vascular neck 7 to the associated end wall of the vascular abdomen 8, see above that the securing flange 30 to the inside of the neck of the vessel almost to a small annular gap on the inner circumference of the neck completely fills and the closure part 14 essentially lies completely within the securing flange 30.

To the outside are parts of the securing flange 30 open, with an annular jacket-shaped opening 40 between the Surfaces 27, 39 and the outer end face of the support flange 31 is formed, which from the outer circumference of the jacket 29 and is limited by the approximately coaxial inner circumference of the jacket 32. The compared to these coats 29, 32 about 2 to 3 times wider opening 40 is slight on the outside outer, adjoining the outer surface 39 funnel-shaped expands and has one through the support flange 31 formed, closed bottom 41, so that in the opening 40 no medium can get out of the storage space 9.

The actuating head 20 has a plastic the shaft 17 and the base body receiving the nozzle head 42 and one on the outer circumference and on the outer End face essentially completely covering cap part 43, which can consist of plastic or metal and is much thinner than the base body 42.

The essentially gap-free on the outer circumference of the base body 42 adjacent jacket of the cap part 43 is on the inside over the base body 42 and engages in the starting position the outer circumference of the closure part 14 from the end 27, so that it is about the thickness of the wall part 33 and about in the middle between the wall parts 29, 32 without contact engages in opening 40. In the depressed Pump stroke end position can the end of the cap jacket to the Edge surfaces of ribs 44 or the like. concern which the Outer circumference of the closure part 14 with the inner circumference of the Connect wall part 32 in one piece and down to floor 41 enough so that they are in their area for stiffening contribute and the wall part 32 between the Ribs 44 and the support surface 36 and thus in the area of Reference surface 6 its most compliant or softest spring area Has.

The vessel 2 or the neck 7 suitably consists of glass or a material much greater stiffness than that Securing flange 30 so that the reference surfaces 4 to 6 below do not give in to the contact pressure of the securing flange 30 and how the surfaces 35 to 37 are formed as very smooth surfaces can be, the respective reference surface 4th to 6 slightly press into the corresponding surface 35 to 37 can. As a result, the securing flange 30 forms a tight plug for the vessel 2.

The outlet is in the pump stroke or actuation end position 21 still outside of the securing flange 30 with a distance from the outer surface 39 which is about 2 to 4 times in particular about 3 times the thickness of the wall part 33 corresponds, the outlet 21 approximately parallel is aligned with the outer surface 39. As an operating handle 45 serves the outer end face of the end wall of the fixed position with the base body 42 connected cap part 43, which in the jacket a significantly expanded compared to the outlet 21 Has passage opening for the spray to be discharged. In the end position, the base body 42 can also Overlap closure part 14 on the inner and / or outer circumference, or engage in the closure part 14 and with an inner Strike the end face at the outer end 27. The Outer width of the actuating head 20 is larger than his Axial extent, in the end position its outer, compared to the outlet 21 outwardly offset end face in a distance outside the outer surface 39, which about half of the axial extent or the outer width of the Actuating head 20 corresponds. The maximum stroke length of the Actuating head 20 corresponds to approximately half the length of the Securing flange 30, which is relative to the length of the actuating head 20 is smaller, so that the stroke is about a third corresponds to the length of the actuating head 20.

According to the invention for closing the discharge device 1 in A cap-shaped cover 46 is provided when not in use, which the discharge head 20, the securing means 10, 30th and takes up the neck 7 substantially completely covered and a smaller one in the area of the actuating head 20 Has inside width than in the area of the securing means 10. The Cover 46 has one opposite its end wall 48 in Area of the actuating head 20 thicker and in the area of Securing means 10 thinner cap jacket 47 in that in its open end face an annular depression 49 is provided which has a greater axial extent than that Neck 7 or an axial extent, which is about the basis of of the securing flange 30 corresponds to the extent explained.

In the closed state they lie within the recess 49 completely sunk two fuse bodies 50, 51, one of which one is limited to the cover 46 and the other has limited mobility on the neck 7 or opposite This is contact-free only on the lock or securing flange 30 is attached. The fuse body 50 is through an annular and cup-shaped component made of sheet metal or the like. formed, which is much thinner than the securing flange 30 and this with an annular disc-shaped plane End wall covering the outer surface 39 covers. The coat of the securing body 50 surrounds the outer circumference of the wall part 34 relatively narrow and almost reaches the end wall of the vascular abdomen 8.

The securing body 51 is correspondingly ring-shaped or cup-shaped, lies on the floor with its ring-shaped end wall the recess 49 and extends with its cap jacket to to the associated open end face of the cover 46, wherein the fuse body 51 z. B. by a resiliently engaging Snap connection, pressing in or gluing or welding sits firmly. The end wall of the fuse body 51 protrudes radially over the narrower inner circumference of the cover 46 inside to almost the outer circumference of the actuating head 20 so that they have an annular forehead border of the narrower Opening area of the cover 46 forms. With the inner The fuse body 51 rests on the end face of its end wall the outer end face of the end wall of the fuse body 50 large area.

The two securing bodies 50, 51 grip without being destroyed easily detachable via a securing member 52 and a counter member 53 into each other, which is useful as resilient snap members are formed, which only by mutual longitudinal movement be brought in and out of locking or locking engagement can and approximately in the middle between the ends of the wall part 34 lie. The securing member 52 is by a over the outer circumference of the casing of the fuse body 50 protruding deformation, like a closed ring Stiffening bead formed that is not yielding radially needs to be. The counter member 53 is replaced by a corresponding one Indentation or groove on the inner circumference of the casing of the fuse body 51 is formed and lies in an area in which this jacket is radially resilient with respect to the cap jacket 47 can be expanded without this cap jacket 47th even perform resilient expansion or contraction movements would.

The narrower inner circumference of the cover 46 is with another Securing member 54 of the type mentioned, for. B. with a Snap member, a twist lock member, such as an internal thread or the like. Provided, the inside width at least so as large as the opening in the end wall of the fuse body 51, so that the securing member 54 when inserted Securing body 51 shielded against damage from the outside is and also not to a corresponding counterpart can be put on. If the fuse body 51 from the Cover 46 removed or not inserted from the beginning, so the cover 46 can be used to close a neck of the vessel or the like. Be used on its outer circumference a counter member complementary to the securing member 54 for a form-fitting, but easy to solve problem-free Has connection. Over the inside of the end wall 48 stands a tapered to its free end on the outer circumference Plug 58 in one piece, which in the closed position in the Vascular opening of the neck of the vessel can engage in a sealing manner, so that there is a very tight seal.

The fuse body 50 is with the vessel 2 or with the Securing flange 30 connected via a snap connection 55, the only by axially joining the two Components 30, 50 snaps into place so that the securing body 50 then form-fitting against capturing or captive secured and can only be removed by destruction is. The end of the cap jacket is closed inwards an inner jacket folded over the entire length of the The inner circumference of the outer jacket lies and with its free End face directed against the end face of the wall part 34 is. As a result, this inner jacket forms one double-layered and at an axial distance from the securing member 52 lying stiffening of the body shell within this and at a distance from the outer circumference of the neck of the vessel 7 lying snap member 56, the radial expansion is essentially rigid.

The second snap member 57 is opposite to the Reference surface 5 non-contact free end of the wall part 34 formed, this end surface in the manner of a barb surface lie obliquely or protrude conically can be. If the fuse body 50 axially on the Areas of the securing flange 30 exposed on the outside put on, the snap member 56 runs on the outer circumference of the wall part 34, which resilient in the further course is pressed radially inwards until the snap member 57 Snap member 56 with radial expansion of the wall part 34 springs behind and thereby the fuse body 50 axially is positively secured to the vessel 2.

The securing body 50 can still be compared to the vessel 2 or the locking flange 30 has to be rotated this, however, essentially no radial play. The security body However, 50 can have axial play in that the Snap members 56, 57 when the outer surface 39 is in contact Fuse body 50 have an axial distance from each other. If the cover 46 is pulled off, it can Securing body 50 up to the mutual stop of the links 56, 57 lift off the outer surface 39, after which the Links 52, 53 can be disengaged. Thereby the manual unlocking of the cover 46 can be facilitated or the locking force between the links 52, 53 increase. The fuse body 50 can together with the Fuse body 51 or after this in the cover 46 in Locked position used and only together with the cap 46 by mounting on the counter flange 30 be so that a first placement of the cover 46 on the Counter flange 30 leads to the assembly of the fuse body 50, which cannot be removed afterwards.

Through the protruding beyond the outer inner circumference of the opening 40 The end wall of the fuse body 50 is then the open one End of the opening 40 to close to the outer periphery of the actuating head 20 covered, which in turn the rest and radially inner region of the open end of the Covering opening 40, so that it is only in the area a narrow annular gap is open and no dirt falls into it can. Possibly reaching the opening 40 Dirt can collect between the ribs 44, so that there is no danger that their effective longitudinal extension enlarged by dirt accumulation. The security body 50 also forms a protective jacket for the Safety flange 30 so that it is completely outward is covered and protected against damage. The safety flange 30 also allows 46 when cover 46 is in place a resilient evasion of the discharge device 1 against Shear forces in that the base body 12 relative to the Securing flange 30 or the suspension profile 32 to 34 um few degrees with steeply increasing spring progression can tip. The properties and arrangements mentioned can each exactly, essentially or approximately like described or provided differently. Is too it is conceivable to base the body 12 over the plane of the outer surface 39 to protrude outwards and / or the base body 12 to be provided eccentrically to the securing flange 30.

Claims (12)

1. Discharging apparatus (1) for the delivery of media at an outlet (21), having at least one body (12) of a pump or the like constructed as a casing and which extends between its inner end (28) remote from the outlet (21) and its outer end (27) closer to the outlet (21), with securing means (10) comprising a securing flange (30) with securing faces for maintaining the body (12) on a supporting body (2) having a cavity (9) and for the substantially only non-positive or frictional engagement-based positional securing of the body (12) relative to the supporting body (2) and which engage on said supporting body (2), the body (12) having a casing jacket with an outer circumference and an inner jacket (32) of the securing flange (30) is located between said outer circumference and an inner circumferential surface (6) of the supporting body (2), said inner jacket (32) being connected to the outer circumference of the body (12) and in one piece to an outer support face (36) belonging to the securing faces for longitudinal support purposes with respect to the supporting body (2) against forces directed into the same and at the inner end passing into a jacket profile (38) with radially inner and outer circumferential surfaces, a ventilation area also being provided in the body (12) and which is open by means of at least one ventilation opening in the casing jacket, characterized in that the ventilation opening is open to the cavity (9) of the supporting body (2), that the inner jacket (32) is connected to the outer circumference of the body (12), that the inner jacket (32) is radially narrowable and in radially pretensioned manner resiliently engages on the inner circumferential surface (6) of the supporting body (2) and that in each case the inner circumferential surface (6) of the supporting body and the support face (36) of the securing flange also function as sealing faces with in each case one securing face (35) of the securing flange and an outer end face (4) of the supporting body (2).
2. Discharging apparatus according to claim 1, characterized in that the securing flange (30) and inner jacket (32) surround the ventilation opening, that in particular at least one of the circumferential surfaces of the jacket profile (38) is conical and that preferably the jacket profile (38) forms a stiffening of the inner jacket (32) with respect to the body (12) in such a way that the inner jacket (32) has its substantially softest spring area between the stiffening and the support face (33).
3. Discharging apparatus according to claim 1 or 2, characterized in that the body (12) can be inserted longitudinally along a longitudinal axis (11) through an opening (3) in the inwards direction into the supporting body (2) provided as a hollow body and between its ends (27, 28) has a boundary of a pressure chamber (15) for pressurizing the medium, that an actuating unit (16) movable over an actuating path with respect to the body (12) is provided for delivering the medium from the discharging apparatus through the media outlet (21), that the securing faces (35, 36) are provided for securing the position of the body (12) relative to reference faces (3-5) of the supporting body (2), namely with transverse tension on the inner circumferential surface (6) and axially with respect to an outer end face (4), that in particular the inner circumferential surface (6) under contact pressure presses into the associated securing face (35) of the securing flange (30) and that preferably an annular disk-like support flange (33) having the support face (36) is covered on its outer end face (39) with an annular disk-like end wall.
4. Discharging apparatus according to one of the preceding claims, characterized in that the transverse tension of the securing means (10) is absorbed in such a way that only the securing flange (30) and not the body (12) is deformed by elastic resilience, that in particular the inner jacket (32) is angled or curved on the inside and/or outside and that preferably the securing flange (30) has conical support faces for support within the supporting body (2).
5. Discharging apparatus according to one of the preceding claims, characterized in that on transferring the securing means (10) into the fixing state, the securing flange (30) is moved relative to the body (12) or supporting body (2), that in particular the jacket profile (38) of the inner jacket (32) following insertion in the supporting body (2) is contact-free with respect to the latter and that preferably the inner jacket (32) is slightly radially narrowed under the transverse tension and a seal with the inner circumferential surface (6) is produced solely by its inherent spring tension.
6. Discharging apparatus according to one of the preceding claims, characterized in that an annular support flange (33) is axially spaced from the jacket profile (38) and has the support face (36) for the positive longitudinal supporting of the body (12) on the supporting body (2), that in particular the outer end of the inner jacket (32) is connected to the support flange (33), whereof one layer is a seal and that preferably the inner jacket (32) with the support flange (33) forms for connection to the supporting body (2) a hook-in profile with mutually longitudinally displaced end parts, namely the support flange (33) and an axially further inwardly located carrying flange (31), which projects over the inner jacket (32) and tightly embraces the outer circumference of the body (12).
7. Discharging apparatus according to one of the preceding claims, characterized in that in the vicinity of a transition of the supporting body (2) the jacket profile (38) is located in a widened bulge (8), that in particular the jacket profile (38) forms the innermost end of the securing flange (30) and that preferably the circumferential surface of the jacket profile (38) is conical in acute-angled manner.
8. Discharging apparatus according to one of the preceding claims, characterized in that within a neck (7) of the supporting body (2), the securing means (10) bound an opening (40) connected to the body (12) and which has at one end a tightly closed bottom (41), that in particular the opening (40) is bounded over its entire length on one side by the body (12) and facing it by the inner jacket (32) and that preferably the securing flange (30) is completely free from snap members.
9. Discharging apparatus according to one of the preceding claims, characterized in that in the interior the supporting body (2) has a depression for the engagement of the securing means (10) for the longitudinal supporting of the body (12), that in particular the depression forms a widening of the supporting body (2), which in the vicinity of its opening (3) has a radially outwardly projecting torus and that preferably the securing flange (30) is approximately rigidly connected to the body (12) solely in a short axial region.
10. Discharging apparatus according to one of the preceding claims, characterized in that the securing means (10) are at least partly constructed in one piece with the body (12), that in particular the body (12) is assembled from a closure part (14) constructed in one piece with the securing flange (30) and a casing part (13) projecting over its inner end and that preferably the securing means (10) have an attachment, such as a sleeve engaging in the interior of the casing part (13).
11. Discharging apparatus according to one of the preceding claims, characterized in that the securing means (10), as a plug-in cap, engage in the outer circumference of the supporting body (2), that in particular the securing flange (30) with an inner circumferential surface (37) engages on the outer circumference of the supporting body (2) under transverse tension and that preferably the inner circumferential surface (37) provided on the cap jacket (34) is formed on the outer circumference of the supporting body (2) only on part of the associated reference face (5) of the supporting body (2) completely covered by the cap jacket (34) and/or engages in tightly sealing manner therewith or the supporting body (2) is formed by a cup-shaped vessel open at one end having a substantially constant inside diameter from said end to roughly its bottom.
12. Discharging apparatus according to one of the preceding claims, characterized in that the body (12) has a pressure chamber (15) bounded by a pump piston (18) and a ventilation area sealed with respect thereto and provided with a vent valve (23) for pressure compensation between the cavity (9) in supporting body (2) provided as a storage space and the external atmosphere, that in particular the inner jacket (32) surrounds the attachment of the closure part (14) engaging in the casing part (13) of the body (12) and that preferably the valve seat of the vent valve (23) is formed by the attachment of the closure part (14).

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