EP1507719A1

EP1507719A1 - Dispenser for the apportioned delivery of pasty substances

Info

Publication number: EP1507719A1
Application number: EP03732415A
Authority: EP
Inventors: Alfred Von Schuckmann
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-05-21
Filing date: 2003-05-19
Publication date: 2005-02-23
Anticipated expiration: 2023-05-19
Also published as: PL372859A1; RU2314984C2; PL202336B1; AU2003238354A1; ES2304513T3; US20050224521A1; WO2003097486A1; US6991135B2; CN100467360C; DE50309537D1; RU2004137288A; EP1507719B1; CN1662432A; DE10222356A1

Abstract

The invention relates to a dispenser (Sp) for the apportioned delivery of pasty substances (8/9), comprising a tubular housing (1), in which a plunger (10) advances towards (x arrow) a discharge nozzle (18), when a discharge grip is actuated. A deformable head (13) that can be depressed in the direction of the plunger (10) and actuated by a grip (H) is allocated to said nozzle, together with a locally fixed cover (20) that seals the opening cross-section (19) of the nozzle. The aim of the invention is to ensure that the dispenser is easy to use. To achieve this, the discharge nozzle (18) pivots sideways under the cover (20) when the grip is actuated.

Description

Dispenser for the portioned delivery of pasty masses

The invention relates to a dispenser for portioned dispensing of pasty masses, with a tubular housing, in which a piston is gradually displaced in the direction of an emptying nozzle when the emptying device is actuated, said piston having a squeeze head that can be pressed in in the direction of the piston and actuated by means of a handle, and an opening cross section thereof closing, stationary lid is assigned.

A squeeze head with this assigned emptying nozzle results from EP-Bl 0 051 790. The handle is an integral part of the squeeze head, and is provided by a ceiling section of the same. When actuated, the tubular emptying nozzle, coming from an oblique position, increasingly positions itself in an axis-parallel position to the longitudinal center axis of the dispenser, which also has a tubular housing here.

From DE-AI 37 16 822 a generic dispenser is known, in which the squeezing head is actuated via a separate handle that can be pressed in. The actuating force is introduced into the crimping head via bending sections. The bending sections are of such a length that they compensate for different movements between the handle and the crimping head. When actuated, the opening cross-section of the emptying nozzle practically axially stands out from the stationary cover. The lid and opening cross-section are cut obliquely in the same manner as a cannula.

The object of the invention is to provide a generic dispenser which is advantageous in terms of use. This object is initially and essentially achieved in a dispenser with the features of claim 1, with the aim being that the emptying spout swings away sideways under the lid when the handle is actuated.

As a result of such a configuration, a used advantageous dispenser is achieved. The swiveling out of the emptying nozzle caused by the actuation of the handle leads to an outstanding free position of the opening cross section. The transfer of the donor's strand-like contents to the destination is thus visually traceable. The crimping head, which deforms against the inherent restoring force, represents, as it were, the emptying nozzle pivot point. The sideways swiveling movement can expediently be carried out on the relatively harder emptying nozzle. Sideways means going to the wall. The opening cross-section is therefore not moved to the less accessible center of the dispenser, as is the case with the generic predecessor. The cross-section of the opening runs away and back under the covers.

The subject matter of the further claims are explained below in relation to the subject matter of claim 1, but may also be of importance in their independent formulation. Thus, the further development of the dispenser mechanism consists in that the handle swivels when actuated by pressure about a point which is on the opposite side in relation to the emptying nozzle and acts on a control projection of the emptying door with an axially directed tail , There is a gear-like function, with which one manages with a relatively small amount of swivel angle with respect to the handle. The operating forces are also moderate. The actuation / dispenser mechanism is located in a comparatively small headspace of the donor. With regard to the It is then advantageous that the effective surface of the control projection is designed as a sloping inclined surface. The helix angle is approx. 45 ° in relation to the initial orientation of the tail that is molded onto the handle. Taking into account the dispenser designed as a standing device, this is the vertical. It is also provided that the inclined surface opens into a limiting groove. This provides a stop that is quite noticeable to the user. With regard to the leverage ratios, it then turns out to be favorable that the free end of the axially directed tail lies approximately at the level of the pivot point. Furthermore, it is a feature of the invention that the lower end of the emptying nozzle is inserted flush into a neck of the crimping head. Attention is paid to a sealed plug connection, for which the crimping head, which is generally made of rubber-elastic material, is best suited. A groove / rib engagement can be used for secure attachment of the parts. In order to effectively counteract even high shifting actuation loads between the emptying nozzle and the neck, provision has been made with regard to the emptying nozzle that the lower edge of the control projection is supported on the edge of the neck. This gives the control lead another function. An embodiment of even independent importance also lies in the fact that the lid sits on a half-shell-shaped surround of an angled section of the emptying nozzle. The section of the emptying nozzle included in the enclosure is guided so well and the position is always corrected when the cover is re-entered so that it always has the same basic position. The lid also has a stiffening effect with respect to the bowl-shaped enclosure, so that it is possible to work with relatively thin wall cross sections. The above-mentioned angling is carried out in the sense of a convenient orientation of the emptying nozzle. An advantageous proximity to the plane of the casing wall of the housing is already achieved here; the still further free current situation. In order to achieve good coverage of the head space of the dispenser receiving the dispenser mechanism, it is also proposed that the angled section of the emptying spout emanates a downward facing skirt that extends beyond the level of the pivot point. So the articulation area of the handle is out of sight. Finally, it is proposed that the apron cover a crease in the crimping head when the dispenser is in the actuated position. As such, the crease-like crease in the dispensing direction as such acts primarily to make it easier to operate. In any case, this handling is less forceful than compressing the dome-shaped crimping head symmetrically from the zenith.

The subject matter of the invention is explained in more detail below on the basis of an illustrative embodiment. It shows:

1 the side view of the dispenser realized as a standing device, closed with a protective cap;

FIG. 2 shows an illustration like FIG. 1, but with the protective cap removed;

3 shows a vertical section through the dispenser in the state of FIG. 1;

4 shows the section according to FIG. 3 in an enlarged representation as an extract, showing the ready-to-use basic position, that is to say with the protective cap removed;

5 shows the dispenser in the actuating position, only partially reproduced like FIG. 4. The dispenser Sp shown is realized as a standing device. It has a tubular housing 1. The latter has a dispenser head 3 containing the dispenser mechanism 2 at the top. There is a base 4 below.

The dispenser head 3 can be covered by a protective cap 5 when it is not in use. It can be attached with a friction fit and finds its limit stop on an annular shoulder 6, which is reached by the wall shoulder of the cylindrical housing 1.

The predominant length section of the volume of the housing 1 serves as a storage space 7 for receiving pasty mass 8. It can be a main mass, for example toothpaste.

The pasty mass 8 is then overlaid by another pasty mass 9. It is located in the dispenser head 3 and provides an additional mass, for example in the form of a mouthwash component. The latter lies in a known manner in a strip shape on a strand formed for portioned delivery. In this regard, the dispenser mechanism 2 acts as a pump.

A piston 10 forms the lower end of the storage space 7

Follower piston. It is inserted from below and thus also has a lid function with respect to the pantry 7.

The piston 10 can only be gradually displaced in the direction of emptying arrow x in accordance with the actuation of the emptying. Peripheral lips 11 lead on the cylindrical inner wall 1 ′ of the housing 1.

On the side facing the base 4, the piston 10 carries a so-called clamping module 12. As a rule, this has radially oriented teeth on. Such a star made of spring steel, when brought into the plane, has a circumscribing diameter that is larger than the clear diameter of the cylindrical storage space 7. Accordingly, the slightly inclined serrated ends dig like support feet in the correspondingly hookable inner wall 1 ' on. There is a climbing-like effect.

The heart of the pump for the piston 10 is a dome-like crimping head 13. The crimping head 13, which is similar to a pump bellows, consists of rubber-elastic, resilient material. It is accommodated in the transition area between the storage space 7 and the dispenser head 3 in a holder 14 in the form of an annular groove on the housing side. The upper end 15 of the holder 14 is obtained by the wall offset of the housing 1 there, which represents the annular shoulder 6; the lower end 16, on the other hand, is formed by a transversely convexly rounded ring rib 17. The pump-active area of the crimping head 13 is not included in the holder 14 itself. Rather, the holder 14 is a cylindrical sleeve 13 'which starts from its lower end edge and is freestanding in the direction of emptying arrow x.

The application of the strand of pasty mass 8/9 takes place via an emptying spout 18 made of relatively rigid material. Its channel is designated by K. The emptying nozzle 18 is composed of an angled, cantilevered section a and a vertical section b running coaxially to the longitudinal center axis y-y of the rotationally symmetrical dispenser Sp. The included angle of inclination α is 40 °.

In the basic position of the dispenser Sp, the opening cross section 19 forming a dispenser mouth is overlaid by a cover 20 fixed to the housing. The other end of the emptying spout 18 is in plug connection with the crimping head 13 which can be pressed in in the direction of the piston 10. The corresponding pluggable end 18 'of the section b of the emptying spout 18 which runs vertically in the basic position is in a neck 21 of the zenith of the dome-shaped crimping head 13 Squeeze head 13 added. The lower end of the emptying spout 18 is recognizably flush with said neck 21. There is a slip-free plug connection. For this purpose, an annular bead 22 is formed at the lower end of section b, which extends vertically in the basic position and engages axially in a corresponding annular groove 23 lying in the interior of the neck.

A pipe section 24, which continues the discharge channel K of the emptying nozzle 18, then adjoins the lower end 18 '. In terms of flow, the pipe section 24 divides the flow of the so-called main mass, here pasty mass 8, from the additional mass which can be applied in strips, here further pasty mass 9, which is located in the vicinity of the pipe section 24 and exits via inlet window 25 in a strand-occupying manner. The relevant facility is well known and will not be discussed further here.

The crimping head 13 is pressed in and the pasty mass is thus discharged by actuating a handle H in the form of a rocker arm. The handle H is pivotally mounted about a point 26. For this purpose, a compressive force in the direction of arrow P is exerted on an accessible actuation button 27 of said handle H. The handle H is a one-armed lever, the fixed articulation point 26 of which lies with respect to the emptying nozzle 18 or the longitudinal central axis xx on the opposite side from the actuation button surface 27. In the drawing, the point 26 is on the left side, that is to say in the pivoting-out direction of said one Longitudinal central axis and the actuation button 27 on the right side thereof. The movement The transmission transfer means of the handle H act in such a way that the emptying spout 18 swings away sideways under the cover 20 when the handle is actuated. This brings the opening cross-section 19 of the emptying nozzle 18, which is already close to the jacket wall projection in the basic position, into an even more favorable free-standing position, even exceeding the jacket wall projection towards the outside. As a result, the strand to be dispensed can be placed in a targeted manner, for example on a toothbrush.

The corresponding outward tilt position is about an imaginary pivot point z, lying approximately in the zenith area of the practically semi-spherical

Crimping head 13. There is an overlapping movement in the direction of the piston 10. The opening cross-section 19 is curved in relation to the pivot point z, as is the closing overlapping inner surface of the ceiling 20. The tight closure is so perfect. It is even possible to use an area increase, since point z can be avoided.

Specifically, the tipping or swiveling out of the emptying nozzle 18 is achieved by means of a handle H by a tail 28 oriented axially or spatially parallel to the longitudinal central axis yy in the basic position of the dispenser Sp related arc path 29. In the basic position intersects the pivot point z. The radius is labeled R.

The tail 28 is directed against a control projection 30 of the emptying nozzle 18. The transversely projecting control projection 30, rooted in the lateral wall of section b of the emptying nozzle 18, provides the tail 28 with an active surface that crosses the arc path steeply. This is embodied in the form of a sloping inclined surface 31 Emptying spout 18. It takes time not to act as a stretched active area; a slight convex curvature or concave trough also has a tilting effect on the emptying nozzle 18 with respect to the sloping inclined surface 31.

As can be seen in FIG. 5, the actuation position is stop-limited. For this purpose, the inclined surface 31 opens into a limiting groove 32.

In the basic position, the free end, that is to say the end face 28 ', of the axially directed tail 28 is approximately at the level of the pivot point 26 on the tip side. The pivoting stroke of the handle H u, which brings about the application of the pasty mass 8/9, makes an angle β of approx 20 ° (see Fig. 5).

The limiting throat 32 is formed by a nose-shaped, upward-facing projection, the flank of which abuts the outside of the tail 28.

The bottom edge 33 of the control projection 30, which is horizontal in the basic position, takes a course in such a way that it is supported on the edge 34 of the neck 21. The emptying nozzle 18 is thus additionally axially secured.

With regard to the dispenser head 3, it remains to be stated that the cover 20 formed thereon forms the upper end of a half-shell-shaped surround 35 of the angled section a of the emptying nozzle 18. Cross-section 35 and section a can be designed in cross-section such that section a is a tube which is round in cross-section and the U-leg-like sections of the border 35 extend somewhat beyond the circular cross-section of said tube. Such an enclosure 35 extending over the equator can form a latching holder in the sense of securing, for example transport securing, the basic position of the dispenser Sp. Apart from the bottom of the enclosure 35, said section a of the emptying nozzle 18 continues into a skirt 36 which closes the receiving space of the dispenser mechanism from there. The takes a bell-shaped section course. In its covering function, the skirt 36 extends beyond the level of the pivot point 36, which can be formed by stub axles with respect to its physical axis. A snap-in configuration can be used with regard to this stub axle.

In the actuating position of the dispenser Sp (see FIG. 5), the said skirt 36 also covers a fold 37 of the crimping head 13.

The fold furrow 37 arises from the folding of the zone of the squeezing head 13 of the dispenser on the discharge side in the direction of tilt. The buckling is particularly easy to fold and leads to a more smooth actuation than in cases in which the collapse of the crimping head 13 extends over the center of the crimping head.

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

The function is, briefly summarized, as follows: by exerting a compressive force in the direction of arrow P, the handle H, designed as a rocker arm, shifts the emptying door 18 into an increasing pivoting-out position via the tail 28 and the inclined surface 31. The opening cross-section 19 leaves the cover 20. Overlaying, there is a compression of the pasty mass 8/9 due to the reduction in volume in the squeezing head 13. The mass, expressed via the channel K of the emptying spout 18, is expressed in a portion-proportioning manner. When the handle H is released, the emptying nozzle 18 returns to the basic position shown in FIG. 4 due to the restoring force of the squeezing head 13. The so-called self-closing effect turns the piston 10 by one over the level column of the pasty mass 8/9

Step. In the new plane, it hooks over the described clamping module 12 in the cylindrical inner wall 1 '. Any excess mass is sucked back behind the opening cross section 19.

The handle is troughed with respect to its tactile surface 27. Furthermore, it continues in the back into a covering 38 which closes the accommodation space of the dispenser mechanism from there.

All of the features disclosed are (in themselves) essential to the invention. The disclosure content of the associated / attached priority documents (copy of the prior application) is hereby also included in full in the disclosure of the application, also for the purpose of including features of these documents in claims of the present application.

Claims

EXPECTATIONS

1. Dispenser (Sp) for portioned delivery of pasty masses (8/9), with a tubular housing (1), in which a piston (10) gradually moves in the direction (arrow x) of an emptying nozzle (18) when actuated by emptying. which is assigned a squeeze head (13) which can be pressed in in the direction of the piston (10) and which can be actuated by means of a handle (H), and a stationary cover (20) which closes its opening cross section (19), characterized in that the emptying nozzle (18) pivots sideways under the cover (20) when actuated.

2. Dispenser according to claim 1 or in particular according thereto, characterized in that the handle (H) pivots when pressed (arrow P) about a point (26) which is on the opposite side with respect to the emptying nozzle (18) the actuating button surface (27), and acts with an axially directed tail (28) on a control projection (30) of the emptying nozzle (18).

3. Dispenser according to one or more of the preceding claims or in particular according thereto, characterized in that the effective area of the

Control projection (30) is designed as a sloping inclined surface (31).

4. Dispenser according to one or more of the preceding claims or in particular according thereto, characterized in that the inclined surface (31) opens into a limiting groove (32).

5. Dispenser according to one or more of the preceding claims or in particular according thereto, characterized in that the free end of the axially directed tail (28) lies approximately at the level of the pivot point (26).

6. Dispenser according to one or more of the preceding claims or in particular according thereto, characterized in that the lower end (18 ') of the emptying nozzle (18) is inserted flush into a neck (21) of the crimping head (13).

7. Dispenser according to one or more of the preceding claims or in particular according thereto, characterized in that the lower edge (33) of the control before the jump (30) is supported on the edge (34) of the neck (21).

8. Dispenser according to one or more of the preceding claims or in particular according thereto, characterized in that the cover (20) sits on a half-shell-shaped surround (35) of an angled section (a) of the emptying nozzle (18).

9. Dispenser according to one or more of the preceding claims or in particular according thereto, characterized in that from the angled section (a) of the emptying nozzle (18) a downward skirt (36) extends which extends beyond the level of the pivot point (26) ,

10. Dispenser according to one or more of the preceding claims or in particular according thereto, characterized in that the apron (36) in the actuating position covers a fold furrow (37) of the squeezing head (13).