EP1977979A1 - Spray head, in particular for a spray can - Google Patents

Abstract

The spray head (10) has a delivery container outlet receptacle for a spray or an aerosol box, a housing (12) and a push button (20). The connection of a discharge channel with the delivery container outlet receptacle is made by operating the push button. A catch hook (62) is provided on the housing and an engagement hook (42) is arranged on the push button. The catch hook is brought into engagement with the engagement hook for connecting a discharge channel by operating the push button.

Description

Technical field of the invention

The invention relates to a spray head for a particular pressurized dispensing container, in particular for a spray or aerosol can, wherein the spray head has a housing and a push button, wherein the connection of an outflow channel with the dispensing container outlet receptacle can be produced by pressing the push button. Under spray head is understood to mean any dispensing head with which a product can be dispensed from a dispensing container. This does not necessarily involve spraying or spraying. The product may also simply flow out of the top of the dispenser.

State of the art

Commercially available dispensing containers are bodies with a central axis arranged outlet on which the required valve is placed. Pressurized dispensing containers, such as spray or aerosol cans, are mostly cylindrical bodies with a central axis outlet on which the required valve is mounted. By pressing on a corresponding push button, such a valve is opened, and the product can flow out or spray out.

In a short-term use over a few seconds, such a solution is practical. This applies both to the use in the spraying of foods such as whipped cream, as well as cleaning agents, for example for the bathroom area, or paints and coatings in the craft or construction sector.

A longer operation, for example when spraying large areas over a period of 20 seconds to the minute range towards, is a burden for the user, since he must hold the triggering push button usually with his forefinger depressed. In particular, in pressurized dispensing containers here is a not negligible force to spend.

For products in such dispensers that are designed to provide prolonged dispensing over a continuous period of time, the prior art dispensing pushbuttons are disadvantageous.

Summary of the invention

Based on this prior art, the invention is based on the object to provide a spray head, which allows a release of a product from a dispensing container over a longer continuous period in a simpler manner.

Furthermore, it is an object of the present invention to provide a corresponding spray head, which can be produced in the simplest possible way, in particular sprayed. Finally, it is a further object of the invention to provide a spray head which ensures a first-opening guarantee.

This object is achieved for a spray head of the type mentioned by the features of claim 1 by a detent hook and on the push button a latching hook is provided on the housing, and that the locking hook with the latching hook only when pressing the push button to connect an outflow channel in Intervention can be brought.

The user of a container, for example a spray can, which uses such a spray head, can advantageously determine the first opening guarantee on webs in the region of the unlocked catch.

Brief description of the drawings

Fig. 1

eine perspektivische Ansicht eines erfindungsgemässen Sprühkopfes nach einem ersten Ausführungsbeispiel;

Fig. 2

eine geschnittene Vergrösserung der Fig. 1, die den relevanten Bereich des Sprühkopfs im Ausgangszustand zeigt;

Fig. 3

eine zur Fig. 2 ähnlich Skizze mit dem Sprühkopf im arretierten Zustand;

Fig. 4

eine perspektivische Darstellung eines Sprühkopfs gemäss einem zweiten Ausführungsbeispiel;

Fig. 5

eine Querschnitts-Ansicht durch einen Sprühkopf einer Abwandlung des zweiten Ausführungsbeispiels;

Fig. 6

eine Draufsicht auf den Sprühkopf nach Fig. 5;

Fig. 7

eine perspektivische Ansicht eines Sprühkopfes gemäss einem dritten Ausführungsbeispiel;

Fig. 8

eine Draufsicht auf die Fig. 7;

Fig. 9

eine Querschnittsansicht entlang der Linie IX - IX in der Fig. 8;

Fig. 10

eine vergrösserte Darstellung des Arretierungsstiftes für das dritte Ausführungsbeispiel.

The invention will now be explained in more detail by means of embodiments with reference to the drawings. Show it:

Fig. 1

a perspective view of a spray head according to the invention according to a first embodiment;

Fig. 2

a cut enlargement of the Fig. 1 showing the relevant area of the spray head in the initial state;

Fig. 3

one to Fig. 2 similar sketch with the spray head in the locked state;

Fig. 4

a perspective view of a spray head according to a second embodiment;

Fig. 5

a cross-sectional view through a spray head of a modification of the second embodiment;

Fig. 6

a plan view of the spray head after Fig. 5 ;

Fig. 7

a perspective view of a spray head according to a third embodiment;

Fig. 8

a top view of the Fig. 7 ;

Fig. 9

a cross-sectional view taken along the line IX - IX in the Fig. 8 ;

Fig. 10

an enlarged view of the locking pin for the third embodiment.

Detailed description of exemplary embodiments

Fig. 1 shows a perspective view of a spray head 10 according to a first embodiment of the invention. The spray head 10 is seated on a dispensing container 11, which is only hinted at very schematically here. The spray head has a housing 12, from which an outlet 13 protrudes in a known manner. Within the body 12, a push button 20 is provided, wherein this in the Fig. 1 opposite the outlet 13 is clearly visible by a provided in the body 12 locking recess 14.

Starting from the dispensing container 11, a central-axis (not shown) can outlet is generally arranged, on which the spray head 10 is placed. The spray head 10 engages with its dispensing container outlet receptacle 21, which is shown in further figures, in a sealing manner in this can outlet.

The spray can 1 can also be another pressurized dispensing container. The term spray head also means any dispensing device with which in particular fluids can be dispensed. These may also be gases, suspensions, aerosols, smoke, vapors, liquids, etc.

The push button 20 may be integrally formed with the outlet 13 and then moves when depressing the push button 20 of the outlet 13 in a housing 12 corresponding slot provided in the direction of the dispensing container 11. However, the outlet 13 may also be integrated into the housing 12 and through a push-button-mediated bending movement actuates the valve of the can outlet.

The spray head 10 is preferably made of plastic. The housing 12 has on the locking recess on a horizontal surface 15 which merges centrally and in alignment with the outlet 13 in an L-shaped locking tab 31. The push button 20 has a pressure plate 22, the rear portion 23 is configured resiliently down. This thinner area 23, in the region facing the locking tab 31, has a catch recess 24 with arms standing laterally, whose function is now related to the FIGS. 2 and 3 is explained in more detail.

The Fig. 2 shows a schematic cross-sectional view through an enlarged part of the spray head 10. The same features are provided in all figures with the same reference numerals. Similar features, if possible, have been provided with the same ten's number in various embodiments.

By pressing the arrow 16 for an actuation of the spray head, the pressure plate 22 is depressed and released a valve in a known manner. By an increased pressure, in particular in the rear region 23, the arms slide past the locking recess 24 on the locking tab 31 and the latching hook 41 can engage in the complementary hook on the locking tab 31, which does not happen without additional pivoting movement.

The Fig. 3 shows the corresponding locked function of the spray head. For this purpose, the user must have actively acted on the rear portion 23, for example in the direction of the arrow 17, the lock.

After that, the user can in principle release the push button 20, since the locking ensures a more extensive outlet of the product from the dispensing container. If the user wishes to stop dispensing or regain control of the dispensing, further pressure is applied to the rear area in the direction of the trigger 18, since the back of the release hook 51 then abuts the complimentary inclined surface of the dispenser Hook of the locking tab 31 moves so that the latching hook 41 is released. This embodiment shows in principle a locking device according to the invention.

The Fig. 4 shows in a perspective view of a spray head 10 with a locking device according to a second embodiment. The spray head 10 is again an internally hollow, slightly truncated cone-shaped body with a housing 12 in which a push button 20 is arranged. The push button 20 is merely indicated here, a pressure plate 22 is not shown for clarity. The correspondingly configured in its dimensions with respect to the hollow housing 12 push button 20 is also a hollow truncated cone in its outer shape, in which on the opposite side, not shown here, a latching hook 42 is arranged. The latching hook 42 projects into the locking recess 14 above its horizontal surface 15. The back of the latching hook 42 is parallel, the upper surface obliquely rising opposite the rear wall of the push button 20 designed.

Below the latching hook 42, a central recess 25 is provided in the body 12, which allows the resilient receiving a locking tab 32. This is preferably integrally molded on the body 12 via a film hinge. This tab is in the representation of Fig. 4 , For example, in the manufacturing state, and is then pivoted by 90 °, so that the region of the tab 32 is fitted into the recess 35 and is snapped by the lateral locking lugs 26.

At the tab 32, a locking hook 62 is provided, which comes to rest on actuation of the push button 20 above the latching hook 42 and thus automatically locks the push button 20. If the valve of the dispensing container already releases the outflow of material before this locking of the elements 42 and 62 happens, the spray head 10 according to the second embodiment can also be operated in blocks and without locking. To release the lock, the user presses on the enlarged designed head of the locking hook 62, so that it can release the latching hook 42.

The Fig. 5 shows a cross-sectional view of a derived second embodiment. Here it can be seen that the outlet 13 is designed here in one piece with the body 12 as an inner channel 19. Integral with the boundary walls of this channel 19, the vertically and centrally disposed dispensing container outlet receptacle 21 is provided. In a modification of the second embodiment according to Fig. 4 the locking hook 22 is designed differently sprayed with the locking tab 32 and is within the outer wall of the housing 12. The push button 20 is here a separate second element which is placed on the body 12. For this purpose, the dispensing container outlet receptacle complementary, in particular snapping these elements. In the region lying opposite the outlet 13, the push button is pulled substantially vertically downwards, with a step designated as a latching hook 42 being provided to the outside. This centrally projecting only over a portion of the width of the push button 20 level is opposite the locking tab 32 so that at pressure according to arrow 17 of the locking hook 62 can come into engagement with the step and the latching hook 42. A release of the device is possible here by pressure in the direction of arrow 18 on the latching hook 62. The triggering of both the lock and the release of the same is possible with the resting on the push button 20 index finger of the user by this is simply withdrawn. The path without locking can be 1 to 4 millimeters, in particular 2 to 3 millimeters.

The Fig. 6 shows in a plan view the elements of the modified second embodiment Fig. 5 ,

The Fig. 7 shows in a perspective view a third embodiment of a spray head according to the invention. Here, a transversely extending locking pin 33 is provided, which is provided laterally from the axis of symmetry of the spray head 10 on the opposite side of the outlet 13, 19 arranged. The function of in the Fig. 10 magnified illustrated locking pin 33 goes in conjunction with the FIGS. 8 and 9 in which Fig. 8 a plan view of the spray head after Fig. 7 represents and Fig. 9 a cross-sectional view along the lines IX - IX of Fig. 8 ,

The push button 20 is shown here as an independent second part. However, it can also be designed in one piece with the body 12 of the spray head 10. In the case of the third embodiment, the recess 14 with the horizontal surface 15 is not directly essential for locking character, but only for easier accessibility of the pressure surface of the push button 20. By pressing the push button 20 according to the arrow 16, shown in the Fig. 9 , the channel 19 is bent, so that the dispensing container outlet receptacle 21, which presses on the valve of the dispensing container triggers this, and thus the material flow is possible. In the push button 20, a slot 27 is provided in each case in the region of the locking pin, in which the fixed in its height locking pin 63 remains. The locking pin 63 is fixed in its height by the corresponding holes in the housing 12. Upon actuation of the push button 20, the locking hook 43 provided in the extension of the inner channel 19 shifts downward in a corresponding locking recess 34. Even if it is a pivoting, is the main component the movement to move down to the valve.

If the push button 20 is now sufficiently depressed, it is below the locking hook 63, which, however, is laterally offset. By pressing the locking pin 33 in the direction of the arrow 17, which is now possible for example with the thumb of the user, the locking pin 33 moves in its longitudinal direction, which corresponds to that of the arrow 17. In this case, the latching hook 43 then comes to rest under the locking hook 63 and the duration of triggering the spray head 10 is ensured, even without further pressure in the direction of the arrow 16 is exerted with the index finger. To reset is to press the locking pin in the direction of arrow 18, ie in the opposite direction, so that the latching hook 43 is again in the Arretierungsausnehmung 34 freely up and down movable.

The locking pin 33 is thereby secured against rotation by having a long nose 28 which is guided in a complementary recess in the housing 12.

Pushing the locking pin 33 beyond the intended movement limits, is prevented by two latching grooves 29. The respective latching groove 29 engages in not shown in the drawings circumferential locking knobs, which are formed on the surface of Duchgangslochs for the locking pin 33 in Sprühkopfgehäuse 12. The locking knobs can also form a bead.

The locking pin 33 is understood as an extension of the housing 12, which in contrast to the integrated tab 31 or the molded tab 32 is a separate component. Functional the locking pin 33 is identical, since he also carries the locking hook (here 63).

The engagement of the locking hooks 61, 62 or 63 with the latching hooks 41, 42 or 43 is in each case a positive connection. The locking hook 61, 62 or 63 is substantially transversely to the operating direction of the push button 20 out of engagement with the latching hook 41, 42 or 43 of the push button 20 can be brought, wherein in the embodiments of the Fig. 1 to 6 this movement is resilient.

In all embodiments, webs, not shown, may be provided between the horizontal surface 15 of the housing 12 and the push button 20 in the region of the recess 14 in the Fig., Which indicate a first opening guarantee before a first actuation of the push button 20.

LIST OF REFERENCE NUMBERS

10

spray nozzle

11

dispensing container

12

casing

13

outlet

14

securing recess

15

area

16

Arrow for actuation

17

Arrow for locking

18

Arrow for triggering

19

inner channel

20

push-button

21

Abgabebehälterauslassaufnahme

22

printing plate

23

the backstage area

24

recess

25

central recess

26

locking lugs

27

Long hole

28

long nose

29

Rest grooves

31

locking tab

32

locking tab

33

locking pin

34

securing recess

41

latch hook

42

latch hook

43

latch hook

51

release hook

61

locking hooks

62

locking hooks

63

locking hooks

Claims (6)

Spray head (10) for a particular pressurized dispensing container (11) with a dispensing container outlet receptacle (21), in particular for a spray or aerosol can, wherein the spray head (10) has a housing (12) and a push button (20) , wherein by actuation of the push button (20) the connection of a discharge channel (13, 19) with the dispensing container outlet receptacle (21) can be produced, characterized in that on the housing (12) a locking hook (61, 62, 63) is provided that on the push button (20) has a latching hook (41, 42, 43) is provided, and that the locking hook (61, 62, 63) with the latching hook (41, 42, 43) only upon actuation of the push button (20) for connecting a Outflow channel (13, 19) can be brought into engagement. Spray head according to claim 1, characterized in that the engagement between latching hooks (41, 42, 43) and locking hooks (61, 62, 63) is a positive connection. Spray head according to claim 1 or 2, characterized in that the locking hook (61, 62, 63) substantially transversely to the actuating direction of the push button (20) out of engagement with the latching hook (41, 42, 43) of the push button (20) can be brought , Spray head according to one of claims 1 to 3, characterized in that the locking hook (61, 62) is resiliently engageable in and out of engagement with the latching hook (41, 42) of the push-button (20). Spray head according to one of claims 1 to 4, characterized in that the housing (12) facing away from the outlet (13, 19) Side has a recess (14). Spray head according to claim 5, characterized in that between one surface (15) of the recess (14) and a further region of the spray head (10), in particular the push button (20), one or more first-opening guarantee webs are provided.

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