EP1507719B1 - Dispenser for the apportioned delivery of pasty substances - Google Patents

Description

The invention relates to a dispenser for the portioned dispensing pasty masses, with a tubular housing in which a piston is gradually displaced during emptying operation in the direction of emptying spout, which a depressible in the direction of the piston, actuatable by a handle squeezing and a cross-section of their opening, stationary lid is assigned.

A crimping head with this assigned emptying spout results from the EP-B1 0 051790 , The handle is an integral part of the squeezing, and provided by a ceiling portion of the same. Under operation, the tubular emptying spout, coming from an inclination, increasingly in an axially parallel position to the longitudinal central axis of the here also a tubular housing having dispenser.

From the DE-A1 37 16 822 a generic dispenser according to the preamble of claim 1 is known in which the crimping head is actuated via a pressed-in, separate handle. The actuating force is introduced via bending sections in the crimping head. The bending sections are of such length that they compensate for different movements between the handle and the crimping head. Under actuation, the opening cross section of the emptying grommet lifts practically axially from the stationary lid. Lid and opening cross-section are tapered like a cup.

The object of the invention is to provide a generic dispenser advantageous use.

This object is achieved first and foremost in a dispenser with the features of claim 1, wherein it is based on the fact that the emptying spout swivels sideways under handle during manipulation of the handle.

As a result of such an embodiment, a use-beneficial dispenser is achieved. The effect of the operation of the handle swinging the emptying spout leads to an excellent free standing position of the opening cross-section. The transfer of the string-like contents of the donor to the destination is thus visually traceable. The crushing head, which deforms against the inherent restoring force, represents, as it were, the emptying spout pivot point. The sideways Wegschwenkbewegung can be made appropriate to the relatively harder emptying spout. Sideways means going to the mantle wall. The opening cross section is thus not displaced into the less accessible center of the donor, as is the case with the generic precursor. The opening cross section runs away under the ceiling and back.

The objects of the further claims are explained below with reference to the subject of claim 1. Thus, the further design of the dispenser mechanism is that the handle pivots on pressure actuation by a point which is in relation to the emptying spout on the opposite side as the actuating button surface, and acts with an axially directed tail on a control projection of the emptying spout. There is a gear-like function, where you get along with respect to the handle with a relatively small swivel angle amount. The operating forces are also moderate. The actuator / dispenser mechanism is accommodated in a comparably small headspace of the dispenser. Regarding the emptying spout It is then advantageous that the effective surface of the control projection is designed as a sloping inclined surface. The helix angle is about 45 ° relative to the initial orientation of the handle the same shape formed tail. Considering the designed as a stand-up dispenser that is the vertical. It is further provided that the inclined surface opens into a limiting throat. This provides a very noticeable stop for the user. With regard to the leverage ratios, it then proves to be favorable that the free end of the axially directed tail is approximately at the height of the pivot point. Moreover, a feature of the invention is that the lower end of the emptying spout is inserted flush into a neck of the crimping head. It is paid attention to a tight plug connection, to which the usually made of rubber-elastic material crimping head is best suited. It can be applied for a secure bondage of the parts a groove / rib engagement. In order to effectively counteract also high sliding actuation loads between emptying spout and neck, a provision is made with respect to the emptying spout to the effect that the Unterkarite the control projection is supported on the edge of the neck. This gives the tax advantage another function. An embodiment of even independent significance is, moreover, that the lid sits on a half-shell-shaped enclosure of an angled portion of the emptying spout. The accommodated in the enclosure section of the emptying spout is so well managed and also in re-entry into this coverage with respect to a constant same basic position corrects. The lid also acts in terms of the cup-shaped enclosure stiffening, so that you can work with relatively thin wall cross-sections. The mentioned bend is made in the sense of a convenient orientation of the emptying nozzle. It is here already achieved an advantageous proximity to the plane of the jacket wall of the housing; then the further free-standing situation closes when actuated at. To achieve good coverage of the dispenser mechanism receiving head space of the dispenser is still proposed that from the angled portion of the emptying spout a downward Schurz goes out, which extends beyond the level of the pivot point. Thus, the articulation of the handle of visibility is removed. Finally, it is suggested that the apron covers a fold groove of the crimping head in the operating position of the dispenser. The crease-like fold groove that results in the direction of the crescent moon as such acts, above all, to facilitate operation. In any case, this handling is less cumbersome than compressing the dome-shaped head symmetrically from the zenith.

Fig. 1

den als Standgerät realisierten Spender in Seitenansicht, schutzkappenverschlossen;

Fig. 2

eine Darstellung wie Fig.1, jedoch bei abgezogener Schutzkappe;

Fig. 3

einen Vertikalschnitt durch den Spender im Zustand der Fig.1;

Fig. 4

den Schnitt gemäß Fig. 3 in vergrößerter Wiedergabe als Auszug, die benutzungsbereite Grundstellung zeigend, also bei abgenommener Schutzkappe;

Fig. 5

den Spender in Betätigungsstellung, nur partiell wiedergegeben wie Fig. 4.

The object of the invention is explained in more detail below with reference to an exemplary embodiment illustrated in the drawing. It shows:

Fig. 1

the dispenser realized as a stand-alone device in side view, cap closed;

Fig. 2

a representation like Fig.1 , but with the protective cap removed;

Fig. 3

a vertical section through the dispenser in the state of Fig.1 ;

Fig. 4

the cut according to Fig. 3 in an enlarged view as an excerpt showing the ready-to-use basic position, ie with the protective cap removed;

Fig. 5

the dispenser in operating position, only partially reproduced as Fig. 4 ,

The illustrated dispenser Sp is realized as a standalone unit. It has a tubular housing 1. The latter has a dispenser head 3 containing the dispenser mechanism 2 at the top. Below is a pedestal 4.

The dispenser head 3 can be covered by a protective cap 5 in the periods of disuse. It can be attached frictionally and finds its way to an annular shoulder 6, achieved by Wandungsabsatz the cylindrical housing 1, their limit stop.

The vast length of the volume of the housing 1 serves as a storage space 7 for receiving pasty mass 8. It may be a main mass, for example. Toothpaste.

The pasty mass 8 is then superimposed by a further pasty mass 9. This is located in the dispenser head 3 and provides an additional mass, for example. In the form of a mouthwash component. The latter settles in a known manner in a strip on a strand formed for portioned output. The dispenser mechanism 2 acts in this regard pumping auszubingend.

The lower end of the storage space 7 forms a piston 10. It is a follower piston. The is used from below and so at the same time with respect to the pantry 7 lid function.

The piston 10 is stepwise displaceable only in the discharge direction arrow x corresponding to the emptying operation. In this case, peripheral lips 11 lead to the cylindrical inner wall 1 'of the housing first

On the side facing the pedestal 4, the piston 10 carries a so-called clamping module 12. The generally has radially oriented teeth on. Such a star made of spring steel has, in the plane, a circumscribing diameter which is greater than the clear diameter of the cylindrical storage space 7. Accordingly, the fleeing slightly inclined jagged ends like support feet dig in the corresponding hookable inner wall 1 'in this regard , There is a klettermaxartige effect.

The heart of the pump for the piston 10 is a dome-shaped crimping head 13. The crimping head 13, which is similar to a pumping bellows, consists of rubber-elastic, resilient material. It is housed on the housing side in the transition region between the reservoir 7 and dispenser head 3 in a holder 14 in the form of an annular groove. The upper end 15 of the holder 14 is obtained by the annular shoulder 6 stellenden Wandungsversatz of the housing 1; the lower end 16, however, forms a transverse convexly rounded annular rib 17. The pump-active region of the squeezing head 13 is not included in the holder 14 itself. The holder 14 is rather an emanating from its lower end edge, in the discharge direction arrow x detached folded, cylindrical sleeve 13 '.

The application of the strand of pasty mass 8/9 is done via an existing from relatively rigid material discharge spout 18. Its channel is denoted by K. The emptying grommet 18 is composed of an angled, freely adjustable section a and a coaxial with the longitudinal center axis y-y of the rotationally symmetrical dispenser Sp extending vertical section b together. The included inclination angle α is 40 °.

In the basic position of the dispenser Sp, the opening cross-section 19 forming a donor mouth is enclosed by a cover 20 fixed to the housing.

The other end of the discharge spout 18 is in plug connection with the crushable in the direction of the piston 10 crimping head 13. The plug-in end 18 'of the basic vertical section b of the emptying spout 18 is in a standing in the zenith of the dome-shaped squeezing 13 neck 21 of the Crimping head 13 was added. The lower end of the emptying spout 18 is recognizable in flush assignment to said neck 21. There is a slip-free connector. This purpose is served at the lower end of the basic position vertically extending portion b molded annular bead 22 which engages in a corresponding annular groove 23, lying in the neck interior, axially locking.

At the lower end 18 'then closes the output channel K of the emptying spout 18 continuing tubular section 24. The pipe section 24 shares in terms of flow the flow of the so-called main mass, here pasty mass 8, of the strip-shaped orderable additional mass, here further pasty mass 9, which is located in the vicinity of the pipe section 24 and exiting via inlet window 25 strand occupying. The relevant facility is well known and will not be discussed further here.

The impressions of the crimping head 13 and thus applying the pasty mass is done by operating a realized in the form of a rocker handle H. The is pivotally mounted about a point 26. For this purpose, a pressure force in the direction of the arrow P is exerted on an accessible actuation sensing surface 27 of the said handle H. The handle H is a one-armed lever, the stationary hinge axis stellender point 26 with respect to the emptying spout 18 and longitudinal center axis xx on the opposite side as the actuation button surface 27. In the drawing, the point 26 is on the left side, ie in the swing of the said Longitudinal center axis and the actuating touch surface 27 on the right side thereof. The motion transmission means the handle H are acting in such a way that the emptying spout 18 swivels sideways under handle 20 when handling the handle. This brings the opening cross-section 19 of the emptying spout 18, which is already in the basic position close to the casing wall projection, into an even more favorable free-standing position, even outwardly extending the casing wall projection. As a result, the auszubringende strand targeted, eg. Place on a toothbrush.

The corresponding Auswärtskippstellung goes to an imaginary pivot point z, lying approximately in the zenith of the practically semi-spherical squeezing 13. There is an overlapping movement in the direction of the piston 10 instead. The opening cross-section 19 is curved relative to the pivot point z, as well as the closing overlapping inner surface of the ceiling 20. The sealing is so perfect. It may even be an area increase applied because the point z is evasive.

Concretely, the tilting or swiveling the emptying spout 18 via handle H is achieved by a in the basic position of the dispenser Sp axially or spatially parallel to the longitudinal central axis yy aligned tail 28. Its lower, pressure-transmitting end face 28 'runs on a radius with respect to the point 26 arc path 29. The cuts in basic position the in 4 and 5 marked pivot point z. The radius is denoted by R.

The tail 28 is directed against a control projection 30 of the discharge spout 18. The projecting in the jacket wall of the portion b of the discharge spout 18, transversely projecting tax advantage 30 provides the tail 28 a bow path steeply crossing effective surface. The embodies in the form of a sloping inclined surface 31. The latter is preferably directional in the flight of the angled portion a of Emptying spout 18. It is necessary not to act as a stretched effective surface; a slight convex curvature or concave trough also acts with respect to the sloping inclined surface 31 tilting on the emptying spout 18th

As Fig. 5 Removable, the operating position is limited stop. For this purpose, the inclined surface 31 opens into a limiting throat 32.

In the basic position, the free end, the end face 28 ', of the axially directed tail 28 is aligned approximately at the level of the tilting point 26. The displacement of the pasty mass 8/9 bringing swing stroke of the handle H includes an angle β of about 20 ° (comp. Fig. 5 ).

The limiting throat 32 is formed by a nose-shaped, upwardly directed approach, the edge of which is fed against the outside of the tail 28.

The horizontal position in the lower horizontal edge 33 of the control projection 30 takes a course to the effect that it is supported on the edge 34 of the neck 21. The emptying spout 18 is thus additionally secured axially.

With regard to the dispensing head 3 it remains to be understood that the cover 20 formed thereon forms the upper end of a half-shell-shaped enclosure 35 of the angled portion a of the emptying spout 18. The skirt 35 and portion a may be configured in cross-section such that the portion a is a round tube in cross-section and the u-leg portions of the skirt 35 extend slightly beyond the circular cross-section of said tube. Such a circumference 35 passing over the equator can form a catch holder in the sense of securing, for example, transport securing, the basic position of the dispenser Sp.

Away from the bottom of the enclosure 35, the said section a of the emptying spout 18 continues into a skirt 36 closing the receiving space of the dispenser mechanism from there. The takes a glockenrandartigen section course. The skirt 36 extends in its covering function to above the level of the pivot point 36, which may be formed with respect to its physical axis of stub axles. It is a snap-in configuration with respect to this stub axle applicable.

In the operating position of the dispenser Sp (see. Fig. 5 ) covers said Schurz 36 at the same time a Faltenfurche 37 of the crimping head 13 from.

The Faltenfurche 37 is formed by the going in tilting direction of the local Ausbringseitigen zone of the crimping head 13 of the dispenser. The buckling results in particularly pliable and leads to a smoother operation than in cases in which the collapse of the squeezing head 13 extends over the center of the same.

The crimping head 13 acts as a return spring of the dispenser mechanism 2 in the sense of the respective recovery of the basic position.

The function is, briefly summarized, as follows: By applying a compressive force in the direction of arrow P, designed as a rocker handle H moves over the tail 28 and the inclined surface 31, the emptying spout 18 in an increasing Ausschwenk tilted position. The opening cross-section 19 leaves the lid 20. Superimposed, there is a compression of the pasty mass 8/9 according to the reduction in volume in the crimping head 13. The mass is, on the channel K emptying spout 18 going strangportionierend expressed.

Releasing the handle H, the emptying spout 18, according to the restoring force of the crimping head 13, returns to the position shown in FIG Fig. 4 apparent basic position back. From the so-called self-closing effect is thereby over the level column of pasty mass 8/9 of the piston 10 followed by one step. In the new plane, it hooks on the described clamping module 12 in the cylindrical inner wall 1 '. Any supernatant to ground is sucked back behind the opening cross-section 19.

The handle is tolerated with respect to their touch surface 27. It sits down in the rest in the back in the accommodation space of the dispenser mechanism from there closing trim 38 continues.

Claims (10)

1. Dispenser (Sp) for delivering portions of pasty substances (8/9), having a tubular housing (1) in which a plunger (10) is displaced in a stepwise manner, during emptying actuation, in the direction (arrow x) of an emptying nozzle (18), which is associated with a squeeze head (13), which can be pressed in in the direction of the plunger (10) and can be actuated via a handle (H), and is associated with a stationary cover (20), which closes the opening cross-section (19) of the emptying nozzle, characterized in that the handle (H), upon pressure actuation (arrow P), pivots about a point (26) which, in relation to the emptying nozzle (18), is located on the opposite side to the actuating-button surface (27), and the emptying nozzle (18) pivots away sideways beneath the cover (20).
2. Dispenser according to Claim 1, characterized in that an axially directed tail (28) is acting on a drive protrusion (30) of the emptying nozzle (18).
3. Dispenser according to one or more of the preceding claims, characterized in that the operating surface of the drive protrusion (30) is configured as a downwardly sloping oblique surface (31).
4. Dispenser according to one or more of the preceding claims, characterized in that the oblique surface (31) ends in a limiting groove (32).
5. Dispenser according to one or more of the preceding claims, characterized in that the free end of the axially directed tail (28) is located approximately level with the pivot point (26).
6. Dispenser according to one or more of the preceding claims, characterized in that the lower end (18') of the emptying nozzle (18) is plugged in a flush manner into a neck (21) of the squeeze head (13).
7. Dispenser according to one or more of the preceding claims, characterized in that the bottom edge (33) of the drive protrusion (30) is supported on the periphery (34) of the neck (21).
8. Dispenser according to one or more of the preceding claims, characterized in that the cover (20) is seated on a half-shell-like surround (35) of an angled portion (a) of the emptying nozzle (18).
9. Dispenser according to one or more of the preceding claims, characterized in that a downwardly directed apron (36) extends from the angled portion (a) of the emptying nozzle (18) and reaches beyond the level of the pivot point (26).
10. Dispenser according to one or more of the preceding claims, characterized in that, in the actuating position, the apron (36) covers over a fold furrow (37) of the squeeze head (13).

Images