DE1475167A1 - Spray head for elastic plastic bottles - Google Patents

Description

The invention relates to a spray head for elastic plastic flaps with a spray nozzle, ei.ie: ...: - :: generally movable Air inlet valve and one the nozzle opening and the ventilation inlet opening at the same time closing cap. Such spray heads are used to simply flow through liquids without using a propellant gas repeatedly squeezing the elastic plastic bottle by hand to spray «,

The simplest form of such spray devices for elastic liquid containers consists of a container closure, from which a spray tube extends to the deepest point of the container, through the liquid together with a certain amount of air from a spray nozzle at the end of the spray tube by squeezing the container walls is squeezed out. Such spray devices have the disadvantage that the spraying of the liquid is slow and can be carried out intermittently, as the air required for pressing out between the individual spraying processes must be sucked through the spray nozzle into the container, which only because of the very small diameter of the spray nozzle take care slowly. Another disadvantage of this known J | stirrers consists in the fact that filling is too strong or when pressing in rapid succession, i.e. whenever there is not enough air in the bottle to spray is, no more finely atomized liquid particles are sprayed, but a cowardly jet of liquid exits the nozzle opening.

However, this usually causes the surfaces to be sprayed to become grounded strongly advised and the fluid consumption is greater as desired.

Other known spray heads for elastic liquid bottles have therefore been Iconstru'nrt in such a way that, in addition to a spray nozzle in the inner cap, they have an air inlet opening to be blocked by a valve, through which air can flow in relatively quickly when the bottle is under negative pressure , while when squeezing &".:■;." .. L.jJ.LeiLaLnae the air valve is closed as a result of the overpressure in the bottle. Such known air inlet valves consist either of spring force pressed against the air opening in normal storage or of freely movable plate valves that keep the air duct open in normal storage, the latter only closing the air opening when there is overpressure in the bottle have the disadvantage that they easily stick together due to excretions from the bottle contents, such as dissolved substances that can be deposited at the air inlet opening as a result of evaporation of small amounts of solvent, so that the entire spray device becomes unusable.

Spray heads with a freely movable valve part that keeps the air inlet open in normal storage are known to be designed in such a way that the freely movable valve part is suspended in a central air duct, while a vertical spray nozzle, cut diagonally in the upper ™ part, and the riser tube holder are attached to the side of it in the spray head . However, such known spray heads provided with a central air duct have various disadvantages. Since when the spray bottle is stored in the cap, liquid can only flow back through the normally open air channel, while liquid escaping from the spray nozzle on the side of the air channel cannot get there and between the interior connection

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and the closure cap remains, it tends to happen that if the closure cap of such known devices is not stored horizontally, the spray bottle may be stored horizontally, for example during a trip. , HeraMaufen Tuffer few drops of reached between the inner seal and cap liquid at the · side of the container, addition os was not previously possible with portable technical effort, using the known spray heads a direction perpendicular to Fla3chenaclise spray a produce radiant · δ ~ ί, de perpendicular running spray nozzle always had to be cut at a certain angle so that the spray jet was always directed upwards. The consequence of this was that the "known spray bottles had to be inclined to produce a horizontal spray jet, so that non-sprayable residues would always remain in such spray bottles, in addition to which the known spray heads necessarily had a certain diameter due to the arrangement of the air duct and spray nozzle next to one another Can not fall below, which has a detrimental effect on the cost of production due to the material consumption and a pleasing appearance of such devices.

The object of the present invention is therefore to overcome all these disadvantages of known spray heads and to provide smaller and thus cheaper and more attractive spray heads which allow a horizontal spray jet without tilting the bottle and in which no liquid gets between the inner spout and the cap even when the bottle is stored horizontally. Such a spray head for elastic plastic bottles with a spray nozzle, axially movable air inlet valve and a cap according to the invention that closes the nozzle opening and the air inlet opening is characterized in that in the air inlet channel there is an annular constriction vpp & QBt which cooperates with a movable valve part and that the inside of the valve part possesses a channel which receives the upper end of the riser tube and is connected to the spray nozzle, least cross-section

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is the cross section of the riser tube and the one at the bottom End openings for the expulsion of air into the duct and through the Has spray nozzle.

The new spray head li'.eh of the invention thus consists of only three separate parts, one possibly made of one piece with the closing cap Inner closure, central air duct, a movable one Valve part that has the valve disk "at its lower end and at the same time contains the spray nozzle, and one Riser tube, which is firmly inserted into the valve body and with this after overpressure inside the bottle • move back to the starting position when the pressure is equalized moved back down.

This also applies to the inclined position of the spray bottle during spraying to achieve a perfect valve closure, it is appropriate to use an air inlet valve, which is in the sealing position of the valve body and the valve body seat cooperates like a ball joint. For this purpose, the movable valve part can either match a hemispherical axia3 / 6ev / e Valve head in a hemispherical or ring-shaped seats is adapted, or the valve disk can be flat and with a haU-spherical seat cooperate "In each I? all the valve seat is preferably provided at a constriction of the air inlet channel"

Of course, the invention also relates to all air inlet valves which have the same effect and which are essential Features of the invention, especially those inside the valve part located, connected to the spray nozzle and the upper end of the riser tube receiving channel included.

Although with the new spray head, the spray nozzle also goes up or may be inclined downwards, if such for special ones Intended uses, there is a preferred embodiment

909808/006 /;

management form is to arrange the spray nozzle essentially perpendicular to the Fl a scheme lis e.

The duct running inside the valve part, which is connected at its upper end to the spray nozzle, must therefore have a larger cross-section than the riser tube received by it, so that in the channel of the Unfilled space remains, through which when the elastic spray bottle is pressed together, the in the Bottle located air can be ejected past the riser tube through the channel to the spray nozzle. A preferred one Embodiment of the invention therefore provides that the spray head has an axially extending channel of polygonal, preferably triangular cross-section into which the riser tube is fitted in the corners of the channel while keeping air discharge channels free. Through the openings at the lower end of the channel can through these air discharge channels The amount of air required for the spray effect is pressed from the inside of the bottle to the spray nozzle.

The movable valve part is mounted in such a way in the air intake passage in a known ¹ JeISe that it does not close the air inlet opening during normal storage, let the valve ciirch precipitates can not be bonded. The valve part is preferably mounted with projections above the valve body part on pegs in the area of the air inlet duct.

The new spray heads according to the invention offer the advantage that, when stored horizontally, liquid running into the space between the inner closure and the closure cap Erect the spray bottle completely back into the interior of the bottle through the air inlet channel without leaving any residues the liquid can get stuck between the inner closure and the closure cap. In addition, the valve part, which protrudes with its upper end from the ventilation inlet opening, Easily moved by hand, so ate if it stuck together

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of the valve this can easily be loosened again and the spray device can be started again, making the spray head unusable is excluded.

I? in v / Eiterer advantage of the new spray heads is the Ilöglichkeit now provide a horizontal Dprühstrahlriohtung after 'Junscli, Sa ⁷ IaB when spraying vertical surfaces not the bottle needs to be inclined.

The valve part, which can be accommodated in the smallest of spaces, enables it is to make the new spray head much smaller and, moreover, fewer individual parts than known spray heads, so that!, late rial saved and the production is cheaper. In addition, such smaller spray heads have a more pleasing appearance, which is reflected in the Selling such spray devices has a beneficial effect

To further explain the invention, refer to the drawing a preferred embodiment described, but encompassed the idea of the invention also includes constructions that have the same effect parts deviating from the special shape of the exemplary embodiment with the characteristics of the invention use.

In the drawing means

Figure 1 shows a vertical section through a spray head according to the invention and

2 shows a plan view of the same spray head according to

Removal of the cap

The spray head consists of an inner closure 1, which with the help of an annular groove 2 on the edge of a plastic bottle is clamped and the 3

<j> is connected to the closure cap 4, preferably '' Inner lock, connecting bracket and locking cap consist of one piece. The one attached centrally in the inner lock Air inlet channel 5 has a constriction 6, which

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rn is designed as a valve body seat 7 at its lower end. This valve body seat is hemispherical in the example explained.

The movable valve part 9 is 'flit' supported by three projections 10 above the valve disk 11 on three pins 8 inside the air inlet duct. This "" Valve plate be also seated hdbkugelföriuige shape VVI-operates with the valve body seat 7 in the gasket layer, d _e h., When the valve member in case of overpressure in the Gprühflasche upwards is pressed against the entilkörpersitz, a ball joint iii &

Iiu line dos valve part 9 is a channel 12 of triangular Cross-section provided in which the round Steigrölirchen up ~ "ü a stop 14 inserted and by contact with the Inner walls is fitted. In the corners of the channel 12 are between the - "outer circumference of the riser 13 and the R ^ nalwilden 3 air discharge can .le 15 of approximately triangular cross-section educated. These lead in the channel 12 along the upper one Ίΐτ3β of the riser 13 and open into a narrower part 16 of the channel 12, to which the spray nozzle 17 is connected perpendicular to the axial direction.

Upon compression of the '7är_3e the elastic plastic bottle disfigured in the bottle, an overpressure, so that the Yentilteil 9 lifted together with the riser tube 13 mounted therein and overall against the valve seat part of the body _7: press-fit wtLrd. Then the air in the bottle! only ejected through the air ejection channels 15 to the narrowed 2eil IG of the channel 12 and from the spray nozzle 17, at the same time through riser 13 liquid also reaches the narrowed part 16 and through spray nozzle 17 in the form of fine droplets into the open air. '

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With! Tachlaseen of the pressure · on the walls deir elastic Plastic bottle creates a negative pressure in the bottle, with the valve part 9 with the riser tube 13 pointing downwards falls, "until the Yorsprünge IO rest on the pin 8. In the process, air can again flow through the air inlet channel 5 into the interior of the plastic bottle. t

When the spray bottle is stored horizontally, part of the liquid bottle contents can only pass through the air inlet channel 5 and spray nozzle 17 into the small space between the upper part of the valve part 9 and the closure cap 4, from where, when the bottle is erected, it enters the air inlet channel 5 " Hasche back-flows.

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Claims (1)

Patantan's test iJ spray head for elastic spray head bottles with spray üse, axially movable air inlet valve and a die. Nozzle opening and cap closing off the air inlet opening, characterized in that an annular constriction (6) cooperating with a movable valve part (9) is provided in the air inlet channel (5) and the inside of the movable valve part (9) has an upper end of the riser tube (13) receiving and to the spray nozzle (Jf) connected channel (12), the cross section of which is larger than the cross section of the riser tube (13) and the openings at the lower end for the air ejection d irclr the channel (12) and the Has spray nozzle (17). ?. Spray head according to claim 1, characterized in that da.j movable valve part (9) has a hemispherical, axially movable valve disk (11) fitted into a spherical or annular seat (7) of the constriction (6). Z. Spray head according to claim 1, characterized in that the movable valve part (9) has a plate-like, axially movable valve body part adapted to the constriction (6) in a hemispherical Sii + z (7). 4. Spray head according to claim 1 to 3, characterized in that the spray nozzle (17) is substantially perpendicular to the Plaschenaxe is arranged 5. Spray head naoh claim 1 "to 4 _r, characterized in that the spray head has an axially extending channel (12) of multi-square, preferably triangular cross-section, in which the S ** igrtfhJtah * n (13) with Jreibaltungvon iuftausatoßkanäle CWV in the corners of the channel (12) is fitted " V.V §09808 / 0004 BAD ORIGINAL " ¹⁰ " H75167 6. Spray head according to claim 1 to 5, characterized in that the movable valve part (9) with "projections (10) above of the vantile body part (11) on pin (8) in the area of the Air inlet duct (5) is mounted » 909808/0064 _BAD