EP3793912B1 - Sprühaufsatz zum strahlenförmigen ausbringen von flüssigen substanzen - Google Patents

Sprühaufsatz zum strahlenförmigen ausbringen von flüssigen substanzen Download PDF

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Publication number
EP3793912B1
EP3793912B1 EP19714172.4A EP19714172A EP3793912B1 EP 3793912 B1 EP3793912 B1 EP 3793912B1 EP 19714172 A EP19714172 A EP 19714172A EP 3793912 B1 EP3793912 B1 EP 3793912B1
Authority
EP
European Patent Office
Prior art keywords
conical
receiving
insert part
spray attachment
receiving part
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP19714172.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3793912A1 (de
Inventor
Florian MÜLLER
Klemens Bösch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alpla Werke Alwin Lehner GmbH and Co KG
Original Assignee
Alpla Werke Alwin Lehner GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alpla Werke Alwin Lehner GmbH and Co KG filed Critical Alpla Werke Alwin Lehner GmbH and Co KG
Priority to RS20230216A priority Critical patent/RS64082B1/sr
Publication of EP3793912A1 publication Critical patent/EP3793912A1/de
Application granted granted Critical
Publication of EP3793912B1 publication Critical patent/EP3793912B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B05B1/10—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in the form of a fine jet, e.g. for use in wind-screen washers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
    • B05B15/65—Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/38—Devices for discharging contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/08—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures
    • B65D47/0804—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures integrally formed with the base element provided with the spout or discharge passage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/0055—Containers or packages provided with a flexible bag or a deformable membrane or diaphragm for expelling the contents

Definitions

  • the invention relates to a spray attachment for jetting liquid substances according to the preamble of patent claim 1.
  • liquid substances are liquids whose viscosity is low enough to ensure uninterrupted continuous flow.
  • spray devices for liquids and creams are known from the prior art, which are applied with a spray pump via a spray valve.
  • a fanned application of liquid substances is only possible to a limited extent with such spray valves.
  • the spray valves have a tendency to clog over time, which can further impede fanning of the spray.
  • the attachment is usually a plastic injection molded part made using multi-component technology.
  • the passage openings are formed in a kind of screen plate, which consists of silicone, for example.
  • the attachment can also include a closure cap, which is connected to the attachment via an injection-moulded tab.
  • a disadvantage of the known spray systems is their complex and expensive construction.
  • the sieve-like through-openings of the attachment parts are often very different in terms of their diameter and therefore often do not allow a uniform spray jet during use.
  • the spray jet is often fanned out unevenly.
  • EP-2881334 discloses a spray attachment according to the preamble of claim 1.
  • the object of the present invention is therefore to create a spray attachment which is suitable for use in connection with liquid substances.
  • the liquid substance should be able to be jetted out of a container through the spray attachment by squeezing the container wall.
  • the invention proposes a spray attachment for jetting liquid substances.
  • the spray attachment comprises a cap with an annular, peripheral, closed shell with a wall, on the inside or outside of which first fastening means are formed.
  • the first fastening means are designed to engage in corresponding second fastening means, which can be provided on an outer wall or inner wall of a container neck.
  • the jacket is closed off by a cover surface that has a recess.
  • a receiving part for receiving an insert part is arranged in the area of the recess.
  • the receiving part has a conical receiving surface that is closed in the circumferential direction.
  • An essentially correspondingly conical peripheral surface is formed on the insert part.
  • the insert part has an axial extent that is equal to or smaller than an axial extent of the receiving part.
  • the conical receiving surface of the receiving part and the conical peripheral surface of the insert part delimit at least one passage channel for the liquid substance, through which the liquid substance can be discharged when the conical receiving surface and the conical peripheral surface are
  • the at least one passage channel is delimited by the interacting conical surfaces of the receiving part and the insert part, there are significantly greater degrees of freedom for their design and manufacture than with the sieve-like inserts of the prior art. This is the same as that caused by the conical surfaces the passageway of a tube formed by the receiving part and the insert part and having an inlet opening and an outlet opening.
  • the at least one through-channel can also be produced with significantly greater uniformity in a mass production process, which has an advantageous effect on unit costs.
  • the insert part can be manufactured separately from the rest of the closure in terms of space and time, so that these two parts have to be assembled into one another after injection molding is complete, or in a 2-component injection molding process, in which the complete spray attachment is already in is produced in one process step.
  • the design according to the invention also makes it possible to produce the at least one through-channel with smaller diameters without having to resort to costly production methods such as laser drilling.
  • the receiving part can be equipped with projections, for example, which lock behind the insert part during assembly and prevent the insert part from falling out in a form-fitting manner.
  • the insert part which can be manufactured as a single part, can be movable or fixed in the axial direction after assembly in the receiving part, which is generally formed in one piece on the top surface of the jacket. Movable in the axial direction means that the insert part can be moved relative to the receiving part from a first position, in which the conical receiving surface of the receiving part and the conical peripheral surface of the insert part are in contact, to a second position, in which the conical receiving surface of the receiving part and the conical peripheral surface of the Insert part are spaced apart, is displaceable, and vice versa.
  • a partial area of the at least one through-channel can be designed in the form of a groove on the conical receiving surface of the receiving part and/or the conical peripheral surface of the insert part.
  • this partial area will be U-shaped or V-shaped.
  • the at least one through-channel can therefore be formed in that the conical receiving surface of the receiving part and the conical peripheral surface of the insert part rest against one another.
  • the passage channel can be formed by the groove on the conical receiving surface or on the conical peripheral surface being covered by a planar area of the conical peripheral surface or the conical receiving surface, or by the groove on the conical receiving surface and the groove on the conical Circumferential surface overlap one another, passage channels can be formed which have a cross-section up to down to about 0.005 mm 2 , forming a very fine jet.
  • the cone of the conical peripheral surface of the insert part can be aligned in the assembled state such that its base faces the free end of the jacket, or in the case of a spray attachment mounted on a container, towards the contents stored in the container. If the insert part can be displaced along its central axis in the receiving part, the insert part can be shifted from the second position to the first position by squeezing the container, so that the conical receiving surface of the receiving part and the conical peripheral surface of the insert part rest against one another and the at least one Passage channel is formed.
  • the squeezing can bring about an elastically reversible deformation of the container wall of the container, which can be carried out several times without damaging the container.
  • the pressure in the container can increase and the stored content can press against the base of the conical peripheral surface of the insert part and move the insert part into the first position before the stored liquid substance at least partially fills the container in one through the at least one Passage channel formed beam leaves. Due to the design as a conical receiving surface of the receiving part and a conical peripheral surface of the insert part, an increase in the pressure inside the container also leads to an increase in the contact pressure of the conical receiving surface against the conical peripheral surface or vice versa.
  • the angles that form the conical receiving surface with the central axis of the receiving part and the conical peripheral surface with the central axis of the insert part are the same, so that the conical receiving surface and the conical peripheral surface lie flat against each other and not just in linear contact.
  • the two angles are usually designed in such a way that the conical peripheral surface and the conical receiving surface do not rest against one another in a self-locking manner.
  • the insert part By generating the negative pressure, the insert part can be shifted from the first position to the second position be so that the cross section through which the ambient air can get into the container interior can be increased compared to the cross section of the passage channel.
  • the container can return to its original shape before squeezing in a shorter period of time than if the ambient air had to get into the interior of the container solely through the cross section of the passage channel.
  • More than one passage channel is usually formed in a spray head.
  • the liquid substance can be discharged from the spray attachment in a convergent, parallel and divergent manner by appropriately aligning the conical receiving surface of the receiving part and the conical peripheral surface of the insert part and by appropriately designing the grooves. If more than one passage channel is present, the beams can essentially meet at one point in the case of convergent deployment, or they can cross without touching.
  • the number of grooves on the conical receiving surface can deviate from the number of grooves on the peripheral surface.
  • the groove/s on the conical receiving surface and the groove/s on the conical peripheral surface can be congruent, so that the cross-sectional area of the groove/s on the conical peripheral surface and the cross-sectional area of the groove/s on the conical receiving surface add up.
  • the conical receiving surface and the conical peripheral surface can also be arranged in such a way that the respective groove(s) do not overlap.
  • the total number of through-channels can thus be increased very easily.
  • the cross-sectional area of the groove(s) is usually U-shaped or V-shaped for manufacturing reasons, but can have any shape, preferably without undercuts, so that no slides are required for demoulding from the injection mold.
  • An embodiment variant of the invention can provide that the at least one passage channel has a cross-sectional area of approximately 0.005 mm 2 to approximately 3.5 mm 2 .
  • the larger cross-sectional areas can be created, for example, in that both the conical receiving surface and the conical peripheral surface are provided with the same number of grooves and the grooves are made to overlap one another.
  • the receiving device and the insert part can have a circular cross section.
  • the conical receiving surface and the conical peripheral surface can then be formed, for example, as truncated cone surfaces.
  • An exemplary embodiment of the spray attachment can provide that the insert part has first positioning means which interact with second positioning means on the receiving part. As a result, the insert part can be positioned precisely in the receiving device during assembly.
  • the insert part is arranged such that it can be rotated relative to the conical receiving surface between 0.5° and 179.5°, preferably between 0.5° and 90° and particularly preferably between 5° and 60°.
  • the user has the option, if necessary, of changing the cross-sectional width of the passage channels by rotating the insert part relative to the receiving part.
  • This embodiment variant is particularly suitable for a spray attachment in which both the conical receiving surface on the receiving part and the conical peripheral surface of the insert part are provided with grooves.
  • the receiving part and the insert part are secured against twisting relative to one another. This ensures that, depending on the intended use, either the grooves on the conical receiving surface of the receiving part and the grooves on the conical peripheral surface of the insert part overlap or do not overlap.
  • a spray attachment can be created that applies a lot of liquid substance with a few, but thick jets, and on the other hand, with a double number of jets, which are considerably thinner, but usually less liquid at the same pressure.
  • the difference in liquid output at the same pressure can be due to the fact that, despite the cross-sectional area of the through-flow channels being the same overall, the proportion of laminar flow is higher in the spray attachment with more through-flow channels.
  • the insert part is held firmly in the receiving part along its central axis.
  • This embodiment variant is particularly suitable for through-channels with a larger cross-sectional area, since enough air can pass through them to allow the container to return to its original position in a short time after squeezing.
  • the insert part can be displaced along its central axis in the receiving part between a first position and a second position, and vice versa.
  • the conical peripheral surface of the insert part In the second position, in which the insert part rests, for example, on the projections of the receiving part, the conical peripheral surface of the insert part is at a distance from the conical receiving surface of the receiving part.
  • an annular gap for the entry of air is formed between the two conical surfaces. If the liquid substance is pressed against the insert for a spray jet, this is displaced in the direction of the conical receiving surface until the two conical surfaces abut against one another and thus delimit the passage channels. Provision can furthermore be made for the insert part to be prestressed into the second position by spring force.
  • resilient tabs can be arranged in the receiving part, which protrude from an underside of the top surface of the cap and press on a front surface of the insert part.
  • the insert part can be displaceable by a predetermined amount along its axial extent in the receiving part.
  • the dimension can be in the range from about 0.05 mm to about 5.0 mm, preferably in the range from about 0.2 mm to about 3.0 mm.
  • the spray attachment can be designed in different variants with regard to the fanning out of the spray jet.
  • the passage channels delimited by the grooves in the conical receiving surface of the receiving part and/or in the conical peripheral surface of the insert part have a divergent course in the spraying direction.
  • the spray jet of the liquid substance is fanned out as soon as it leaves the spray attachment.
  • each central axis of at least two through-channels lies in a plane that is spanned by a surface line of the conical receiving surface of the receiving part and a central axis of the receiving part, or by a surface line of the conical peripheral surface of the insert part and a central axis of the insert part.
  • the passage channels, or their center axes can extend essentially along generatrices of the conical receiving surface of the receiving part or of generatrices of the conical peripheral surface of the insert part.
  • the at least two beams are divergent or convergent.
  • the at least two jets When the at least two jets are discharged convergently from the spray head, they theoretically meet at a point that actually represents a mixing area, in order to unite there to form a common jet that essentially follows the central axis of the spray attachment. Surprisingly, this one combined common jet has been found to be turbulent. This energy from the turbulence can be used, for example, to foam cleaning agents.
  • This mixing area for the individual discharged jets for the liquid substance can be at a distance of about 2 mm to about 1000 mm, preferably from about 4 mm to about 30 mm, from the insert part.
  • the passage channels can be designed in such a way that their center axes in the respective plane enclose an angle to the respective surface lines.
  • the passage channels, or the jets of liquid substance discharged through the passage channels no longer follow the extension of the generating line.
  • beams can be generated which, despite the advantages resulting from the interaction of the conical receiving surface of the receiving part and the conical peripheral surface of the insert part, are essentially parallel to each other follow the central axis of the receiving part or to the central axis of the insert part.
  • jets can ultimately be discharged from the spray attachment which are essentially parallel to the central axis of the spray attachment.
  • each central axis of at least two through-channels intersects a plane at an angle.
  • the center axes of the at least two through-channels extend essentially parallel to the conical receiving surface of the receiving part or essentially parallel to the conical peripheral surface of the insert part.
  • the plane is spanned by a surface line of the conical receiving surface of the receiving part and a central axis of the receiving part or by a surface line of the conical peripheral surface of the insert part and a central axis of the insert part.
  • the angle is greater than 0° and less than 90°, preferably greater than or equal to 5° and less than or equal to 45°.
  • the grooves extend in the form of a conical spiral on the conical receiving surface and/or the conical peripheral surface.
  • the grooves can be left-handed and/or right-handed.
  • the angle at which the central axis of the passageway intersects the plane may vary along the passageway. This creates a doubly curved central axis.
  • the angle information above preferably relates to the opening orifice of the passage channel through which the jet leaves the spray attachment.
  • the jets discharging the liquid substance can be convergently aligned without touching one another.
  • the passage channels will extend essentially parallel to one another.
  • angles at which the central axes of the passage channels intersect the plane are the same. All through-channels are thus essentially parallel to one another.
  • the receiving part for the insert part or the insert part itself or both parts can protrude axially beyond the outer side of the top surface of the cap and form a socket-like extension.
  • the socket-like extension can then be used, for example, to fix a closure in a sealed manner.
  • a hinge joint for example a film hinge, is formed on the cap and is connected to a cover part.
  • a protruding closure cone is arranged on an inner surface of the lid part facing the top surface, which cone cooperates in a sealing manner with the socket-like extension on the top surface of the cap when it is closed.
  • the spray attachment can be closed in a fluid-tight manner by means of a screw cap.
  • the spray attachment can be closed in a fluid-tight manner by a push-pull closure.
  • the spray attachment is preferably produced using a plastic injection molding process and/or a plastic pressing process. All plastics suitable for injection molding can be used as plastics.
  • the spray attachment provides that at least the cap with the jacket, including the top surface and receiving part, is made of a plastic from the group consisting of polyolefins, in particular polyethylene and polypropylene, HDPE, LDPE, their copolymers, recyclates from the polyolefins mentioned and mixtures of the mentioned Polyolefins and polyesters, in particular PET, PEF, PPF, PBT, whose copolymers, recyclates are made from the polyesters mentioned and mixtures of the polyesters mentioned.
  • the plastics listed have been sufficiently tested for the injection molding process and their chemical and physical parameters are known.
  • the casing together with the cover surface and receiving part and the insert part are made of the same plastic.
  • This embodiment variant of the spray attachment has the advantage of particularly good dimensional accuracy, since the cap, in particular the receiving part, and the insert part have the same shrinkage.
  • the plastics used can be different from one another.
  • a plastic container with a spray attachment according to the invention according to one of the described embodiment variants has a container body which can be squeezed together elastically and reversibly at least in certain areas.
  • the liquid substance is sprayed by squeezing the container body by hand. If the pressing force of the hand decreases, air can enter the interior of the container through the passage channels and/or through an annular gap between the conical surfaces of the receiving part and the insert part, as a result of which the container body expands again due to its restoring force and assumes its original shape.
  • the plastic container can be produced in a blow molding process, for example in an extrusion blow molding process or in a stretch blow molding process.
  • a first embodiment of a spray attachment and the associated components are shown.
  • the spray attachment is provided with the reference number 1 in its entirety. It comprises a cap 2 with a substantially cylindrical shell 3. One longitudinal end of the shell 3 is closed with a top surface 4.
  • a closure part 100 is articulated on the casing 3 of the spray attachment 1 via a hinge joint 101 .
  • the hinge joint 101 can be a bistable joint or a film hinge, for example.
  • the closure part 100 shown does not necessarily have to be connected to the jacket 3 of the cap 2 via a joint. In an alternative embodiment variant, it can also be designed as a separate removable part, for example.
  • An outer side 41 of the top surface 4 is projected axially from a section of a receiving part 5 and forms a socket-like extension 51.
  • the socket-like extension 51 serves to fix a sealing cone 103, which protrudes from an inner wall 102 of the closure part ( figure 5 ).
  • the cover part 100 can be fixed to the cap 2 in a non-positive or positive manner.
  • Next shows 1 that in the receiving part 5 an insert part 6 is held.
  • the receiving part 5 and the insert part 6 delimit passage channels which are indicated with the reference number 7 and are described in more detail below.
  • the casing 3 has first fastening means 32 on its inner wall 31.
  • the first fastening means 32 as in 2 is indicated, designed as threaded sections.
  • the first fastening means 32 can also be designed as threads, as projecting or recessed elements of a bayonet catch and the like.
  • the first fasteners 32 are designed to engage second fasteners formed corresponding to the first fasteners 32 and on a container neck, for example on a bottleneck, can be arranged.
  • the second fastening means are designed as threads which are formed on the periphery of the container neck.
  • the top surface 4 is provided with a recess 44 .
  • the recess 44 is bordered by a conical receiving surface 55 which is closed in the circumferential direction and which forms part of the receiving part 5 .
  • the receiving part 5 receives the insert part 6 .
  • a conical peripheral surface 65 of the insert part 6 comes into contact with the conical receiving surface 55 on the receiving part 5.
  • the receiving surface 55 on the receiving part 5 and the peripheral surface 65 on the insert part 6 have essentially the same taper. As shown, these are preferably truncated cone surfaces.
  • the insert part 6 mounted in the receiving part 5 is held in the receiving part 5 so that it cannot move axially, for example.
  • a ring-like extension 52 is formed on the receiving part 5 for this purpose, which extends in the direction of the casing 3 of the cap 2 and has one or more inwardly directed projections 53 .
  • the projections 53 engage in an annular groove 62 on a flange 61, as in FIG 3 is evident.
  • resilient tabs with inwardly directed projections can also be provided on the receiving part 5, for example.
  • the insert part 6 has an axial extent that is the same as or smaller than an axial extent of the receiving part 5 .
  • the insert part 6 can also be held in the receiving part 5 so that it can move axially.
  • the receiving part 5 has an extension or tabs with inwardly directed projections which engage behind the flange 61 of the insert part 6 .
  • the conical peripheral surface 65 of the insert part 6 is at a distance from the conical receiving surface 55 of the receiving part 5 .
  • an annular gap for the entry of air is formed between the two conical surfaces 55, 65.
  • the insert 6 is biased by spring force in its rest position.
  • resilient tabs can be arranged in the receiving part 5, which protrude from an underside of the top surface 4 of the cap 2 and press on a front surface of the insert part 6.
  • the axial mobility of the insert part 6 can be from about 0.05 mm to about 5.0 mm, preferably from about 0.2 mm to about 3.0 mm.
  • FIG. 3 shows a perspective view of the insert part 6. It has a hat-like shape.
  • the conical peripheral surface 65 of the insert part 6 is provided with grooves 66 .
  • the grooves 66 in cooperation with the receiving part 5 form the passageways 7 already mentioned.
  • Positioning elements that interact with corresponding receptacles on the receiving part 5 can be formed on the flange 61 of the insert part 6 .
  • the position of the insert part 6 in the receiving part 5 can be fixed in the circumferential direction.
  • the grooves 66 extend parallel to one another.
  • the grooves 66 extend on the conical peripheral surface 65 of the insert part 6.
  • each central axis II of the grooves 66 intersects a plane E at an angle ⁇ , which in the present exemplary embodiment is approximately 15°, the plane E passing through a surface line M of the conical peripheral surface 65 of the insert part 6 and a central axis II of the insert part 6 is spanned.
  • the grooves 66 can have any shape in cross section, but are U-shaped in the present exemplary embodiment.
  • the conical peripheral surface 65 of the insert part 6 is designed to be unstructured or smooth ( 8 ).
  • grooves 56 are formed in the conical receiving surface 55 ( 7 ).
  • FIG. 11 to 13 illustrated third embodiment of the spray attachment 1 represents a combination of the first and second embodiments.
  • 11 shows the conditions with the insert part 6 mounted when the grooves 56, 66 have been brought to overlap with one another.
  • the cross sections of the grooves 56 in the conical receiving surface 55 and of the grooves 66 in the conical peripheral surface 65 then add up.
  • the numbers of the grooves in the conical receiving surface and the grooves in the conical peripheral surface add up.
  • the number of grooves in the peripheral surface and in the receiving surface can differ from one another. Provision can also be made for the user to be able to rotate the insert part relative to the receiving part to a predetermined extent, depending on whether he is interested in a larger cross-section of the through-channels or a larger number of through-channels.
  • the receiving part 5 has a cone 57 that tapers in the direction of the free end of the jacket 3 .
  • the cone 57 is held by webs 43 which bridge the recess 44 in the top surface 4 approximately radially.
  • the cone 57 is preferably arranged approximately in the middle of the recess 44 .
  • the cone 57 has an outer surface which forms the conical receiving surface 55 in this exemplary embodiment.
  • the insert part 6 shown is designed to be slightly modified compared to the insert parts described with reference to the first three exemplary embodiments.
  • the modified insert 6 has an inner peripheral surface, which in turn is referred to as the peripheral surface 65 of the insert 6 .
  • radial recesses 63 are arranged, which at mounted insert part 6 record the radial webs 43 at the recess 44.
  • These recesses 63 in connection with the radial webs 43 can also represent positioning means which also prevent a rotation of an insert part 6 that can be displaced along its central axis.
  • the peripheral surface 65 of the insert part 6 designed as an inner peripheral surface has grooves 66 which, when the insert part 6 is mounted, form the passage channels 7 in connection with the receiving part 5 .
  • the passage channels 7 are in turn delimited by the conical receiving surface 55 on the cone 57 and the correspondingly conical circumferential surface 65 on the inner circumference of the insert part 6 .
  • peripheral surface 65 of the insert part 6 is provided with grooves 66 in the exemplary embodiment shown, it goes without saying that the grooves can also be arranged alternatively or additionally on the receiving surface 55 of the cone 57 analogous to the embodiment variants described with reference to exemplary embodiments 1 to 3. The same applies to the twistability of the insert part 6 in relation to the receiving part 5.
  • a fifth exemplary embodiment of the spray attachment is shown, which in turn bears the reference number 1 .
  • the insert part 6 cannot be mounted in the receiving part 5 through the jacket 3 of the cap 2, but is placed on the receiving part 5 from the outside, which in the area of the recess 44 in the top surface 4 is arranged.
  • the receiving part 5 again has a conical receiving surface 55 .
  • the insert part 6 has a conical peripheral surface 65, which is formed as an inner peripheral surface.
  • the conical peripheral surface 65 of the insert is provided with grooves 66 .
  • the grooves 66 form the passage channels 7 for a liquid substance.
  • the grooves can be arranged on the receiving conical surface 55 of the receiving part 5 or on both conical surfaces. This in turn results in the possibility, when the conical peripheral surface 65 and the conical receiving surface 55 lie against one another, of creating through-channels 7 with larger cross-sections or of increasing the number of through-channels 7 . In this case, it can be provided that even the user, if required, can choose either the one variant with larger cross sections of the passage channels 7 or the other variant with a larger number of passage channels 7 can choose.
  • the passage channels delimited by the conical receiving surface 55 and the conical peripheral surface 65 have a cross section in the range between approximately 0.05 mm 2 and approximately 3.5 mm 2 .
  • the grooves 56, 66 in the conical peripheral 65 or receiving surfaces 55 are arranged at an incline relative to the axial extension of the cap 2.
  • the passage channels 7 delimited by the conical receiving surface 55 of the receiving part 5 and by the conical peripheral surface 65 of the insert part 6 have a convergent course in the spraying direction. This means that the individual jets of the applied liquid substance are first directed towards each other before the spray jet is fanned out.
  • the inclined course of the grooves 56, 66 serves to ensure that the individual jets of liquid substance that are discharged do not touch one another. In this way, a sufficient fanning out of the spray jet is achieved even with a convergent course of the passage channels 7 .
  • the spray attachment with passage channels that extend along the generatrices M, these can also be aligned with one another in such a way that the individual spray jets form a focus-like mixing area outside of the spray attachment in the spray direction, in which the spray jets essentially converge combine in a spray jet.
  • This variant can be of interest, for example, in the case of substances that are to be foamed when they are dispensed.
  • the focus-like mixing area can be at a distance of about 2 mm to about 1000 mm, preferably about 4 mm to about 30 mm, from the insert part 6 .
  • the grooves in the (inner) peripheral surface 65 of the insert according to 16 show a divergent course in the direction of spraying. This removes the spray jet the liquid substance as soon as it leaves the spray attachment 1 from the central axis of the insert. A mutual contact of the individual beams is excluded.
  • the spray attachment according to the invention is designed for spraying liquid substances.
  • “liquid substances” are liquids whose viscosity is low enough to ensure uninterrupted continuous flow.
  • the spray attachment is preferably manufactured using a plastic injection molding process and/or a plastic pressing process. All plastics suitable for injection molding and/or plastic pressing processes can be used as plastics.
  • At least the cap with the jacket including the top surface and the receiving part can be made in one piece from a plastic from the group consisting of polyolefins, in particular polyethylene and polypropylene, HDPE, LDPE, their copolymers, recyclates from the polyolefins mentioned and mixtures of the polyolefins mentioned and from polyesters, in particular PET, PEF, PPF, PBT, their co-polymers, recyclates can be made from the polyesters mentioned and mixtures of the polyesters mentioned.
  • the plastics listed have been sufficiently tested for the injection molding process and/or plastic compression molding process and their chemical and physical parameters are known.
  • the casing together with the cover surface and receiving part and the insert part are made of the same plastic.
  • This embodiment variant of the spray attachment has the advantage of particularly good dimensional accuracy, since the cap, in particular the receiving part, and the insert part have the same shrinkage.
  • a plastic container with a spray attachment 1 according to the invention according to one of the described embodiment variants has a container body which can be squeezed together elastically and reversibly at least in certain areas.
  • the liquid substance is sprayed by squeezing the container body by hand.
  • the displaceable insert part 6 is displaced from a second, open position into the first, closed position by the pressure within the container body, which is increased relative to the atmosphere, so that the conical peripheral surface 65 of the insert part 6 and the conical receiving surface 55 of the receiving part 5 lie against one another.
  • the liquid substance is discharged from the container body through the passage channels 7 formed by the conical surfaces 55, 65 lying one on top of the other.
  • the container body tends to return to its original shape due to its rigidity, resulting in a negative pressure in the container body compared to the atmosphere surrounding the container.
  • This allows air to enter the interior of the container through the passage channels 7, as a result of which the container body expands again and assumes its original initial shape.
  • the negative pressure in the container body can cause this to be pulled back from the first position to the second position, so that an annular gap is formed between the conical surfaces 55, 65 of the receiving part 5 and the insert part 6, through which air can enter the Can reach container body and thus the provision of the container body can be executed faster.
  • the displacement of the insert part from the first position into the second position can also be carried out with the aid of a spring.
  • the plastic container can be produced in a blow molding process, for example in an extrusion blow molding process or in a stretch blow molding process.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Closures For Containers (AREA)
EP19714172.4A 2018-05-17 2019-03-26 Sprühaufsatz zum strahlenförmigen ausbringen von flüssigen substanzen Active EP3793912B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RS20230216A RS64082B1 (sr) 2018-05-17 2019-03-26 Priključak za raspršivanje za izbacivanje tečnih supstanci

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00617/18A CH715006A9 (de) 2018-05-17 2018-05-17 Sprühaufsatz zum strahlenförmigen Ausbringen von flüssigen Substanzen.
PCT/EP2019/057503 WO2019219278A1 (de) 2018-05-17 2019-03-26 Sprühaufsatz zum strahlenförmigen ausbringen von flüssigen substanzen

Publications (2)

Publication Number Publication Date
EP3793912A1 EP3793912A1 (de) 2021-03-24
EP3793912B1 true EP3793912B1 (de) 2022-12-21

Family

ID=62385948

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19714172.4A Active EP3793912B1 (de) 2018-05-17 2019-03-26 Sprühaufsatz zum strahlenförmigen ausbringen von flüssigen substanzen

Country Status (10)

Country Link
US (1) US11772105B2 (pl)
EP (1) EP3793912B1 (pl)
CN (1) CN112135781B (pl)
CH (1) CH715006A9 (pl)
ES (1) ES2940692T3 (pl)
MX (1) MX2020012187A (pl)
PL (1) PL3793912T3 (pl)
RS (1) RS64082B1 (pl)
WO (1) WO2019219278A1 (pl)
ZA (1) ZA202007709B (pl)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11292642B2 (en) 2018-12-21 2022-04-05 H. J. Heinz Company Brands Llc Container, closure, and methods for manufacture
USD889260S1 (en) 2018-12-21 2020-07-07 H.J. Heinz Company Brands Llc Closure for a container
WO2020132247A1 (en) 2018-12-21 2020-06-25 H.J. Heinz Company Brands Llc Container, closure, and methods for manufacture
US11891218B2 (en) 2019-09-20 2024-02-06 H.J. Heinz Company Brands Llc Container, closure, and methods for manufacture

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3321114A (en) * 1966-03-04 1967-05-23 Rexall Drug Chemical Pop-up diaphragm closure
SE7607931L (sv) * 1976-07-12 1978-01-13 Kenova Ab Forreglingsanordning for sjelvstengande forslutningar
US4699300A (en) * 1985-10-25 1987-10-13 Blake William S Two piece dispensing closure with positive shutoff
WO1999064311A1 (en) * 1998-06-10 1999-12-16 Vivian Andrew Rocher Closure cap
EP1520797A4 (en) * 2002-05-08 2006-07-05 Hagy Tech Co Ltd EVACUATION NOZZLE CAPABLE OF PREVENTING THE RETURN OF CONTENTS AND CONTAINER FOR LIQUIDS COMPRISING AN EVACUATION NOZZLE
US7740155B1 (en) * 2006-05-01 2010-06-22 Yuri Mauricio Gallegos Self closing cap for dispensing fluids
DE102012014965A1 (de) * 2012-07-30 2014-02-13 Chris Aworth Düsenanordnung
FR3014086B1 (fr) * 2013-12-04 2015-12-04 Albea Le Treport Systeme de distribution d’un produit fluide contenu dans un recipient
FR3019067B1 (fr) * 2014-03-25 2016-04-22 Albea Le Treport Systeme de distribution d'un produit fluide conditionne dans un reservoir
FR3019475B1 (fr) 2014-04-08 2021-10-15 Albea Le Treport Module de distribution d’un produit destine a etre monte sur un conduit d’amenee sous pression dudit produit
CN205203692U (zh) * 2015-11-06 2016-05-04 百利盖(昆山)有限公司 一种滴液瓶盖
GB201601232D0 (en) * 2016-01-22 2016-03-09 Rieke Packaging Systems Ltd Dispensing closures and dispensers

Also Published As

Publication number Publication date
US11772105B2 (en) 2023-10-03
MX2020012187A (es) 2021-01-29
ES2940692T3 (es) 2023-05-10
BR112020023270A2 (pt) 2021-02-23
CN112135781B (zh) 2022-11-25
PL3793912T3 (pl) 2023-04-17
WO2019219278A1 (de) 2019-11-21
ZA202007709B (en) 2022-03-30
CH715006A1 (de) 2019-11-29
EP3793912A1 (de) 2021-03-24
US20210069734A1 (en) 2021-03-11
CN112135781A (zh) 2020-12-25
CH715006A9 (de) 2020-01-15
RS64082B1 (sr) 2023-04-28

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