EP1078863B1 - Verfahren zur Herstellung eines selbstschliessenden Ventils - Google Patents
Verfahren zur Herstellung eines selbstschliessenden Ventils Download PDFInfo
- Publication number
- EP1078863B1 EP1078863B1 EP00124846A EP00124846A EP1078863B1 EP 1078863 B1 EP1078863 B1 EP 1078863B1 EP 00124846 A EP00124846 A EP 00124846A EP 00124846 A EP00124846 A EP 00124846A EP 1078863 B1 EP1078863 B1 EP 1078863B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- membrane
- wall
- section
- connecting wall
- incorporates
- 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.)
- Expired - Lifetime
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Classifications
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- 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
- B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
- B65D47/2031—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure the element being formed by a slit, narrow opening or constrictable spout, the size of the outlet passage being able to be varied by increasing or decreasing the pressure
Definitions
- the present application relates to a method of manufacture a self-closing valve for dispensing flowable Media.
- liquids include e.g. B. Cleaning and care products for the human body like liquid soaps, shower gels, shampoos, skin oils and. v. a. m. Another group such products are classified as food and beverages, for example ketchup, mustard, honey and the like. The like third group of such products are consumer fluids, such as technical oils etc.
- the mentioned products have in common that they the container from Consumers are taken in relatively small quantities.
- EP-A-0 545 678 a closure cap with a proposed self-closing closure, in which a domed Membrane is used, which has a connecting wall is connected to a bracket edge.
- the connecting wall is so arranged between the membrane and the bracket edge, that it rolls to open the membrane and an opening force exerts on the membrane, which is the opening of the membrane effect.
- the present Invention the task of a method for manufacturing to create a self-closing valve, which both excellent opening and closing properties with high Has tightness and which is manufactured in an economical manner can be.
- the valve is then turned inside out inserted inside out in a cap.
- this manufacturing process becomes a reinforcing ring on the holding section at the same time molded from a harder plastic. It is it prefers the plastic ring in a previous manufacturing process regardless of the self-closing valve manufacture and in this reinforcement ring a variety of Provide openings in which the material of the valve can penetrate during the spraying process, so that an intimate, durable and also inexpensive connection between the reinforcement ring and valve body is created.
- the solution according to the invention makes it self-closing Valve, which opens reliably on the one hand, when the container is pressurized in the deployed position which, on the other hand, is reliable and dense closes.
- the membrane and the slots are matched to one another in such a way that elastic when the membrane is deformed outwards Build up restoring forces in the membrane that the If the pressure is released, close the valve.
- Transition area between the connecting wall and membrane in this way shape that forces or moments from the connecting wall the membrane are transmitted, which support the opening and closing.
- the membrane and the connecting wall are preferably rotationally symmetrical designed.
- the holding section is also preferably rotationally symmetrical.
- the membrane is preferably such that it is in the Rest position has an approximately spherical shape.
- the term "spherical section" is here only as a hint thought on the basic design and should not include exact geometric definition of the shape of the membrane.
- One can in particular with a rotationally symmetrical membrane Provide four or five slots, each from the axis of rotation outwards, d. H. extend to the connecting wall.
- a Slit provided, which then extends over the axis of rotation extends in the radial direction.
- the membrane particularly preferably has three slots. These slots are in a rotationally symmetrical membrane design arranged such that they are away from the axis of rotation extend radially outwards.
- the angular distance of the Slits are preferably the same and are 120 °.
- a slot with three, four or five slots divided the membrane in a corresponding number of tapered Cloth After the deformation and opening, these flaps must be be returned in such a way that they with their cutting limits lie exactly against each other.
- a slight disorientation the rag means that the rag, especially in Area of their tips, one on top of the other, creating a sealing Prevents contact of the rags.
- This web of material acts or these webs of material act within the elastic membrane like elastic tension springs and pull the slot together when reclosing.
- the invention proposes several different Designs before.
- the connecting wall designed in a rotationally symmetrical structure so that in a central section containing the axis of rotation an im essential s-shaped course of the wall in the rest position results.
- this wall is then stretched, and the membrane opens as soon as the wall completely stretched condition. This results in a Extending and retracting the valve from a surrounding the valve Cap.
- the connecting wall is made essentially rigid.
- stiff should be understood here that the connecting wall during the transition of the valve from the closed position in the open position no significant Is subject to deformation. This is done in a preferred embodiment achieved in that the connecting wall between Bracket section and membrane essentially in cross section runs straight.
- Such a design can, for example can be achieved by making the connecting wall rotationally symmetrical Membrane is cylindrical.
- the connecting wall can be thicker Wall thickness are carried out, resulting in a very stable Support of the membrane with respect to a closure cap results. But it is also possible to make the connecting wall thin-walled.
- the term "stiff" is therefore not in the same sense understand that he has a thinner wall thickness or a deformability would exclude the partition, but the term is only to be understood in the sense that a possible Deformation of the partition for the process of opening and closing has no significant impact.
- the membrane and connecting wall are decoupled in terms of torque are, d. H. that the movement of the membrane possible little of Forces and in particular moments influenced by the connecting wall could be transferred to the membrane.
- a hinge-like Connection between the connecting wall and the membrane can be combined by a hinge-like Connection between the connecting wall and the membrane.
- a hinge can be manufactured in different ways become.
- One in the connection area is particularly preferred arranged between the connecting wall and membrane Thin point around with rotationally symmetrical membrane design the membrane circulates.
- This thin point is preferably in cross section S-shaped, designed to increase the hinge effect.
- the transition area is between Connection wall and membrane in this preferred fourth embodiment designed so that in particular no moments are transferred from the connecting wall to the membrane.
- this over. corridor can also be created in that the material is inhomogeneous in this area, so that z. B. in this area another material used or the properties of the Material can be influenced in a suitable manner so that the desired Reduction in the ability to transfer torque is achieved becomes.
- the valve can be made from any material be the appropriate values for the elastic deformation and have the elastic restoring force.
- the membrane and / or the connecting wall made from a silicone material. Still is the production of membrane and / or connecting wall from one thermoplastic elastomer possible. There is preferably a connecting wall, Bracket section and membrane from the same material and form a valve body.
- the holding section of the self-closing is particularly preferred Valve through a plastic device, with rotationally symmetrical Design of the valve a plastic ring, reinforced, which, compared to the material of the connecting wall and the membrane, from a stiffer and possibly also cheaper Plastic material is made.
- Fluid Fluid
- liquids liquids
- medium flowable Medium
- Flowable Medium
- a viscosity regardless of whether this viscosity as dynamic or as kinematic viscosity is determined, an outflow of the substance from a container, if necessary by an additional one Allows pressurization. So it's not just that Includes substances in these terms that flow by themselves, such as B. watery substances, but also substances that only then flow when pressurized, e.g. B. greasy and pasty substances.
- the closure used for food, and here for food that come from a group that includes the following foods: Vegetable and fruit juices and other drinks, condiments of all Kind, such as soy sauce and the like, viscous seasonings, such as Mustard, ketchup, mayonnaise, viscous foods such as honey, Jellies, jams, dairy products such as milk, condensed milk, Cream and the like.
- valve in the packaging of personal care and cleaning products, such as liquid ones or pasty soap, shower gels, skin oils, sunscreens, Shampoos, hair dyes, skin creams, deodorants etc.
- valve is also preferred for others Detergents and care products, such as detergents, universal cleaning agents, Shoe creams, polishes, stain removers, liquid detergents and the like.
- Detergents and care products such as detergents, universal cleaning agents, Shoe creams, polishes, stain removers, liquid detergents and the like.
- closure is also preferred for pharmaceutical products, and preferably for products used in smaller quantities are needed, such as. B. eye drops, nose drops, Disinfectant, and all forms of pharmaceutical Products, regardless of whether they are for internal or external Application are intended.
- a use for technical products is also preferred, for example for paints, varnishes, solvents, Lubricants and other technical chemicals and mixtures.
- the closure shown in Fig. 1 is in its entirety with V designated.
- the clasp is on a conventional one Threaded neck 1 of a container 2 screwed on. Inside this container, by the reference number 3, it is symbolically with the reference symbol 4 designated fluid or medium, its viscosity such is chosen that it comes from a closure of the one in question standing can flow out.
- the container wall is complete or partially made of flexible material by the user can be squeezed.
- the neck 1 of the container 2 is cylindrical, the container can have a different shape.
- a cylindrical cap 31 is screwed on has a cylindrical part 32 which with one to the external thread of the neck 1 matching internal thread is provided.
- cap is not mandatory must be screwed onto the neck of the container. It other constructions are also conceivable, e.g. B. a cap, which are held by projections on the container neck and is pressed on the neck of the container or on the container itself, clipped on or otherwise by friction, glue or the like is attached.
- a central opening 6 is provided in this closure cap 31, through which the medium 4 can flow.
- the medium 4 is at this flow through the total with 5 designated self-closing valve according to the present invention prevented.
- the valve 5 has a membrane 7, which is like a segment of a sphere arched inwards, towards the inside of the container 3 and towards the medium 4 is when the valve, as shown in Fig. 1, in the Closed position.
- the connecting wall 8 adjoins the membrane 7, which connected to the holding section 10 via a curvature region 9 is.
- This holding section 10 is in the assembled state of two cylindrical webs 11, which on the essentially formed on the annular lid portion 12 of the closure 31 are kept.
- the valve body is made of membrane, Connecting wall and holding section and is integrally formed.
- the lid 12 is designed so that the container as a whole upside down on the lid and thus on the closure can be kept.
- This type of storage or the corresponding technical Design that allows this type of storage has the Advantage that the space above the membrane is always filled with liquid is filled, so that the removal process even with viscous Media does not depend on the liquid first must flow into the valve.
- the membrane 7 is not included uniform wall thickness, but the wall thickness decreases towards the middle.
- the connecting wall 8 itself is in this embodiment kept significantly thinner than the membrane.
- the connecting wall consists of part a, which directly the membrane abuts, and from part b, which over the arcuate Area 9 is connected to area a. Between The areas a and b are, as indicated in FIG. 1, an angle 2 of approximately 45 ° in the closed position.
- annular bead 13 is in one piece with the connecting wall and protruding radially outward therefrom educated.
- the ring bead lies with the valve open, as in FIG. 3 is seen on a shoulder 14 one of the cap cover from inwardly projecting annular bead 15, which essentially is designed to be rotationally symmetrical.
- the shoulder 14 is designed so that its bevel immediately the angle of the annular bead 13 in the open position equivalent.
- the annular bead 15 widens away from the container interior 3 conical to the outside and thus forms a guide that the partition wall area a leads to the opening of the valve. It works further that the connecting wall in the closed position in front area of the membrane is supported and thus cannot move with respect to the cap. This measure has the advantage that movements of the self-closing Valves that lead to an unintentional opening of the membrane can be avoided.
- a foldable Cover may be provided which the membrane, for. B. with a hemispherical Attachment in the position shown in Fig. 1 holds and serves as security during transport.
- the membrane 7 is slotted, as now with reference to the figures 2 to 4 is further discussed.
- valve and the diaphragm are overall rotationally symmetrical designed, the axis of rotation in Fig. 1 of the line A-A equivalent.
- the membrane has a total of three Slots that start from the point where the axis of rotation pierces the membrane, this point the reference numeral 18 wears.
- the three slots are also arranged symmetrically and form an angle of 120 ° to each other.
- the length of the Slits in relation to the membrane result from the illustration 1, then a slot takes about an area between 3/5 and 4/5 of the membrane radius.
- the slots themselves are cut with a knife tool, the cut is preferably carried out in the position of the valve, such as it is shown in FIG. 1.
- the slots extend then in a plane that is perpendicular to the cap cover 12 and includes the axis of symmetry A-A.
- Each opening slot 16 has the same overall length that 2 in the illustration according to FIG x + y + z.
- each slot consists of an inner one Section II, which is preferably more than half of the total Slot length is at which there is an unslotted one Material bridge 19 connects. After that, the slot in the section I continued.
- the first section II has the slot length x, the material bridge the slot length y and the itself adjoining slot the length z. Material bridge 19 and thus the length y is preferably slightly less than that Length I.
- This design of the slot has significant advantages for that Opening and closing the slots.
- the material bridge 19 in essentially only a uniaxial tension in one direction is subjected perpendicular to the respective slot.
- the material bridge 19 thus acts as one simple tension spring, which has no sliding forces of the slots against each other can produce, but which acts like a rubber band, which is stretched when the flaps are opened and by the restoring force tends to pull the rags together again.
- the material then begins to flow out of the opening O, whereby the flow process continues as long as an overpressure created in the container by the squeezing by the user becomes.
- the effect that the slitting used has is primarily that that the restoring force of the valve increases regardless of the degree of ventilation by the webs or material bridges 19, as already mentioned, how rubber bands work, which forcefully pull the valve back to its original position.
- the valve at the end of a Removal is in any case completely closed again.
- different Parameters between length of sections I, II and the length of the material bridge measured in this direction 19 are useful to the valve for different media to be able to use. For example, by interruption the webs further reduced the opening forces. It Indeed, quite narrow material bridges are sufficient. According to one other configuration, on the other hand, it is not necessary to interrupt the opening slots when the restoring force achieved only by reducing the parameters x + y + z without affecting the opening forces.
- the version looks so that the slots are broken with the dimensions z, y, x.
- the dimensions vary throughout Diameter of the blanket 7.
- the opening slots 16 are not interrupted, but only of different lengths, i.e. the dimension z + y + x varies in the entire diameter of the membrane 7.
- the use of three slots has the particular advantage that the slots are self-centering here can.
- the use of material bridges or webs has the Advantage that elastic over a uniaxial stress state Restoring forces can be built up.
- the length of the slots and the width of these material bridges as well as the number of material bridges (per Slot two or more material bridges can also be provided can be varied to suit the opening and closing behavior adapt different media.
- the length of the individual slots can also have more slots be designed differently, so that the slit itself is not rotationally symmetrical. It is also possible to the slits in a rotationally symmetrical membrane to arrange that the common point of all slots on the Membrane does not coincide with its axis of rotation. It is still possible with a design with three, four, five or more slits with the same star shape or to provide different slot lengths, in which the The angle between the individual slots is not the same. at four slots, the slots z. B. be designed so that they make an angle of> 90 ° to the one adjacent slot, form an angle of ⁇ 90 ° to the other adjacent slot.
- the cut edges of the tabs 20 are arch-like towards each other, which creates high holding forces. At the same time, however, low forces are sufficient to achieve the Open the flap inwards by negative pressure, so that the Sucking back the medium into the container is favored.
- FIGS. 1-4 show a further embodiment of the closing valve produced according to the invention.
- This closing valve can be inserted into a closure cap in a similar manner, as is the case with the closing valve according to FIGS. 1-4 is.
- the closing valve shows some deviations from 1 to 4, the following in detail are explained.
- Fig. 5 shows the valve in the state in which it is injected becomes. After the spraying process, the valve is turned inside out, and namely by the membrane 40 along the rotational axis of symmetry A-A is shifted upwards in the illustration according to FIG. 5.
- the intermediate wall 42 is designed similarly to the intermediate wall 8, but there is a significant difference with regard to the membrane 40 and the transition region 43 between the membrane 40 and the connecting wall 42.
- the connecting wall 40 has a circumferential groove 44, which results in an arcuate area when turned up.
- the slitting of the membrane 40 also need not be shown because it exactly matches the slit as it relates 2 and 4 for the membrane 7 was explained.
- the shape of the transition area is of particular importance 43 and the shape of the membrane itself, which, as can be seen, deviates from the representation according to FIG. 1.
- the connecting wall 42 has, as shown in particular in the illustration 7 shows a cover area 50 in which the connecting wall folded over in an arc is.
- the wall thickness in the part of the envelope area which is closer to the axis of rotation A-A, thinner than that Wall thickness of the connecting wall and is approximately half up to two thirds of the wall thickness of this connecting wall below of the handling area 50.
- At the envelope area 50 which is curved inwards, includes one (in the unturned state) curved outwards first arch region 51, to which finally again one inside, d. H. oppositely curved arc area 52 connects.
- the wall thickness of this second arch area 52 is significantly higher than the wall thickness of the connecting wall and is about 50 to 100% higher than their strength.
- the wall thickness of the membrane 40 which extends to the second arch area 52 immediately follows, is approximately three to Seven times, preferably about five times the wall thickness of the Connecting wall, this wall thickness, like all other wall thicknesses the membrane, each parallel to the axis of rotation A-A are measured.
- the diameter ratio of the total valve to the diameter of the Membrane is approximately 4: 3.
- the arch region 52 is coupled directly to the membrane. It is essential that the arch region 52nd does not connect symmetrically to the wall of the membrane, but with respect to the holding section of the membrane in the non-inverted State is shifted.
- the membrane extends from the arch region 52 over a cylindrical wall 60 from the holding section in the non-slip Condition, or in the installed state of the interior of the container path.
- a second wall section 61 which is not cylindrical, but is conical (the membrane is rotationally symmetrical), extends into the opposite from wall 60 Direction, with the valve installed, towards the container.
- the length of the conical wall 61 measured parallel to the axis of rotation is approximately 50% longer than the length of the cylindrical Wall 60.
- the length is cylindrical Wall 60 is approximately equal to the length of the arch section 52 at the junction with the membrane, parallel to the axis of rotation is measured and the length of the conical wall 61 is then by between about 30% and about 70% preferably 50% longer.
- the membrane At the end of the cylindrical wall 60, designated 60a, the membrane has a relatively sharp edge and extends then from this in a parabolic arc 64 towards the axis of rotation.
- the extends from the end 61a of the conical wall 61 Membrane made with a section 65 that is only slightly curved is, d. H. has a large radius of curvature, wherein the side edge in section with a plane that is perpendicular to the Axis of rotation A-A is preferred, an angle between 20 ° and 30 ° approx. 25 °.
- the wall section with a large radius of curvature 65 goes in one Diameter range that is less than half the membrane diameter, but larger than a quarter of the membrane diameter into a circular area 66 above, which is designed perpendicular to the axis of rotation.
- the membrane diameter is the largest membrane diameter understand that is the distance between two opposite edges 60a.
- the wall thickness of the Membrane with increasing distance from the axis of rotation.
- the wall thickness of the membrane at the point of intersection of the axis of rotation is approx. 25% to 75% larger than the wall thickness of the connecting wall below the membrane, preferably about 50% larger.
- a circular peripheral edge is formed that with the designation 65a, the wall thickness is the Membrane preferably between 25% and 75% higher than the wall thickness in the center, particularly preferably about 50% higher.
- the wall thickness of the membrane is Measured parallel to the axis of rotation, preferably approx. 3-4 times the wall thickness at the point of intersection of the axis of rotation, particularly preferably about 3.5 times.
- the membrane is preferably made of a silicone material, but there are also other plastic materials, such as thermoplastic elastomers, etc. in question.
- FIG. 5 Another special feature of the design according to FIG. 5 is the additional retaining ring 70.
- This retaining ring has, as from figure 6 shows a plurality of arranged in the circumferential direction Openings 71, which are in cross section, as can be seen in particular from FIG. 5, towards the bottom, d. H. from the contact area with the holding section 72 of the in FIG Expand 50 shown valve pointing.
- the retaining ring 70 consists of a harder, less elastic Plastic material as the material of the actual valve, are made from the connecting wall and membrane.
- valve according to FIGS. 5, 6 and 7 is manufactured as follows:
- the retaining ring 70 is in a separate operation injection molded from the appropriate plastic material.
- the retaining ring is then injected into the valve body used and it is, in the embodiment, silicone material injected into the injection mold.
- the silicone material penetrates in the breakthroughs 71.
- the silicone material is then used for a longer period of time annealed at suitable temperatures.
- valve body After completion of the valve body, the valve is turned inside out, by following the membrane in the illustration according to FIG is moved up.
- the shoulder 13 is then on the connecting wall in area a as in a corresponding manner for the valve shown there is shown in Figure 1.
- the valve is then slotted as shown in Figure 2.
- valve is placed in a cap the representation of Figure 1 used, the webs 11 are designed such that they have the retaining ring 70 in a corresponding manner Record wise.
- FIG. 8 shows a self-closing valve 80, which consists of a holding portion 81, a connecting wall 82 and one Membrane 83 exists.
- the membrane 83 and the transition region 84 to the side wall 80 is designed in exactly the same way as in FIG with reference to FIGS. 5 to 7 for the membrane 40 and the transition region 43 was explained.
- connecting wall does not move during the dispensing process.
- the connecting wall is therefore designed so that it essentially only absorbs the tensile forces which occur when actuated the membrane is exerted by the membrane on the connecting wall become.
- the connecting wall 82 is with a Wall thickness designed to be about as thick or a little thicker than the largest wall thickness of the membrane. This wall thickness leads to a relatively stiff connecting wall.
- the connecting wall needs inside a cap that is similar to the cap is designed in Figure 1, little or no guidance.
- the wall thickness corresponds to that in FIG. 8 shown is not absolutely necessary. It is, in particular (but not only) if an appropriate guide in the Locking cap is provided, possible for the connecting wall 82 to choose a significantly smaller wall thickness.
- the holding section 81 is also much higher Wall thickness than the holding section in the other Embodiments of the self-closing valve. Here too it is possible to reduce the wall thickness significantly make.
- the higher wall thickness in the area of the connecting wall 82 and the holding section 81 has essentials Advantage for the strength of the valve.
- the valve is manufactured in the same way as above explained for the embodiment of Figures 5-7 has been.
- the valve is turned inside out from a silicone material Condition manufactured and is then put into the condition in which it is shown in Figure 8.
- This too Embodiment can be another instead of silicone material
- Plastic material with suitable elastic properties and appropriate restoring force can be used, such as. B. a thermoplastic elastomer.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
- Processing Of Solid Wastes (AREA)
- Lift Valve (AREA)
- Magnetically Actuated Valves (AREA)
- Materials For Medical Uses (AREA)
- Laminated Bodies (AREA)
- Safety Valves (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Nozzles (AREA)
Description
- Fig. 1
- einen Schnitt durch den Verschluß eines Behälters in der Überkopfstellung, wobei in dem Verschluß ein erstes Ausführungsbeispiel eines selbstschließenden Ventils, das gemäß der Erfindung hergestellt ist, angeordnet ist;
- Fig. 2
- eine Unteransicht des Ausführungsbeispiels gemäß Fig. 1;
- Fig. 3
- das Ausführungsbeispiel gemäß Fig. 1 in geöffnetem Zustand;
- Fig. 4
- eine Aufsicht auf die Darstellung gemäß Fig. 3;
- Fig. 5
- ein Ausführungsbeispiel eines Ventils ähnlich der Figuren 1 - 4 mit einer etwas anderen Ventilform in einer Schnittdarstellung;
- Fig. 6
- eine Aufsicht auf ein Detail der Fig. 5, den Verstärkungsring zeigend;
- Fig. 7
- ein Detail der Darstellung gemäß Fig. 5;
- Fig. 8
- eine Schnittdarstellung eines weiteren Ausführungsbeispiels, das gemäß Erfindung, hergestellt ist.
Claims (26)
- Verfahren zur Herstellung eines selbstschließenden Ventils zur Ausgabe von fließfähigen Medien aus einem Behälter mit
einer gewölbten Membran, deren Wölbung in der Schließposition dem fließfähigen Medium zugewandt ist und welche sich beim Aufbau eines Drucks im Behälter in eine Ausgabeposition nach außen wölbt,
einem Halteabschnitt, durch welchen das Ventil an diesem Behälter gehalten wird,
einer Verbindungswand, welche zwischen dieser Membran und diesem Halteabschnitt angeordnet ist,
einer in der Membran vorgesehenen Schlitzung, die sich in der Ausgabeposition öffnet,
wobei diese Schlitzung derart angeordnet ist, daß sich bei der durch den Druck im Behälter bewirkten Verformung der Membran von der Schließposition in die Ausgabeposition elastische Rückstellkräfte innerhalb dieser Membran aufbauen, welche bewirken, daß die Membran bei einer Druckentlastung aus dieser Ausgabeposition in die Schließposition zurückgeführt wird.
mit folgenden Verfahrensschritten:Einspritzen des Kunststoffmaterials in eine Form, durch welche eine einstückiger Ventilkörper bestehend aus Membran, Verbindungswand und Halteabschnitt geformt wird;Entnehmen des Ventilkörpers aus dieser Form;Umstülpen des Ventilkörpers, indem die Membran durch den von der Verbindungswand umgebenen Hohlraum geführt wird;Einbringen einer Schlitzung in die Membran. - Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Übergang zwischen dieser Zwischenwand und dieser Membran derart gestaltet ist, daß im wesentlichen keine oder nur geringe Momente von der Zwischenwand auf die Membran übertragen werden, so daß von der Zwischenwand auf die Membran übertragene Momente keinen wesentlichen Einfluß auf das Öffnen und Schließen dieser Schlitzung haben.
- Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß der Übergangsbereich zwischen Verbindungswand und Membran scharnierartig gestaltet ist.
- Verfahren gemäß mindestens einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Membran und die Verbindungswand im wesentlichen rotationssymmetrisch gestaltet sind.
- Verfahren gemäß mindestens einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Übergangsbereich zwischen der Verbindungswand und der Membran derart gestaltet ist, daß die Verbindungswand eine zur Rotationsachse hin gerichtete Umschlagkante mit in etwa bogenförmigem Querschnitt aufweist.
- Verfahren gemäß mindestens einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Membran eine im wesentlichen zur Verbindungswand hin gerichtete umlaufende Wand aufweist, und daß an dieser Wand ein Verbindungsbereich zur Verbindung der Membran mit der Zwischenwand angeformt ist.
- Verfahren gemäß Anspruch 6, dadurch gekennzeichnet, daß dieser Verbindungsbereich derart an dieser umlaufenden Wand angeformt ist, daß er aus einem Mittelbereich dieser Wand in einer Richtung auf das Innere der Wölbung hin und, im eingebauten Zustand, vom Behälterinneren weg, versetzt ist.
- Verfahren gemäß mindestens einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß dieser nach innen gerichtete Umschlag der Verbindungswand und dieser Verbindungsbereich der Membran über einen an beiden angeformten Abschnitt verbunden ist, der im Querschnitt vorzugsweise bogenförmig gestaltet ist, wobei die Krümmung dieses Bogens der Krümmung des Umschlags an der Verbindungswand entgegengesetzt ist.
- Verfahren gemäß mindestens einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Membran in der Schließposition in ihrem Mittelbereich eine zum Behälter hin weisende, im wesentlichen ebene Kreisringfläche aufweist.
- Verfahren gemäß mindestens einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Wandstärke der Membran von dem Mittelbereich nach außen zunimmt, wobei die Wandstärke im Außenbereich und parallel zur Rotationsachse gemessen vorzugsweise das Zwei- bis Dreifache der Wandstärke im Mittelbereich beträgt.
- Verfahren gemäß mindestens einem der Ansprüche 1 - 10, dadurch gekennzeichnet, daß die Schlitzung derart gestaltet ist, daß sie einen Schlitz aufweist.
- Verfahren gemäß mindestens einem der Ansprüche 1 - 10, dadurch gekennzeichnet, daß diese Schlitzung drei Schlitze aufweist, welche vorzugsweise sternförmig gestaltet sind und welche vorzugsweise im gleichen Winkelabstand zueinander angeordnet sind.
- Verfahren gemäß mindestens einem der Ansprüche 1 - 10, dadurch gekennzeichnet, daß diese Schlitzung vier, fünf oder mehr Schlitze aufweist, die vorzugsweise sternförmig angeordnet sind und die vorzugsweise den gleichen Winkelabstand zueinander aufweisen.
- Verfahren gemäß Anspruch 2 und einem der Ansprüche 11-13, dadurch gekennzeichnet, daß diese Schlitzung rotationssymmetrisch zu dieser Rotationsachse gestaltet ist.
- Verfahren gemäß mindestens einem der Ansprüche 11 - 14, dadurch gekennzeichnet, daß wenigstens einer dieser Schlitze derart unterbrochen ist, daß eine Materialbrücke entsteht, wobei die Länge dieser Schlitzunterbrechung kleiner ist, vorzugsweise wesentlich kleiner ist, als die gesamte Länge des jeweligen Schlitzes.
- Verfahren gemäß mindestens einem der Ansprüche 11 - 15, dadurch gekennzeichnet, daß wenigstens ein Schlitz wenigstens zwei oder mehr Unterbrechungen aufweist.
- Verfahren gemäß mindestens einem der Ansprüche 1 - 16, dadurch gekennzeichnet, daß diese Verbindungswand einen ersten Abschnitt (a) aufweist, der unmittelbar dieser Membran benachbart ist, sowie einen zweiten Abschnitt (b), der dem Halteabschnitt benachbart ist, und daß dieser erste Abschnitt (a) und dieser zweite Abschnitt (b) in der Schließposition im Querschnitt im Winkel zueinander angeordnet sind.
- Verfahren gemäß Anspruch 17, dadurch gekennzeichnet, daß dieser im Querschnitt gemessene Winkel zwischen dem Bereich (a) der Verbindungswand und dem Bereich (b) der Verbindungswand sich vergrößert, wenn sich das Ventil von der Schließposition in die Ausgabeposition bewegt.
- Verfahren gemäß mindestens einem der Ansprüche 1 - 16, dadurch gekennzeichnet, daß die Verbindungswand sowohl in der Schließposition als auch in der Ausgabeposition im Querschnitt im wesentlichen geradlinig verläuft.
- Verfahren gemäß Anspruch 19, dadurch gekennzeichnet, daß die Verbindungswand im wesentlichen zylindrisch gestaltet ist, und ihre Form im Übergang von der Schließposition in die Ausgabeposition nicht wesentlich ändert.
- Verfahren gemäß mindestens einem der Ansprüche 1 - 20, dadurch gekennzeichnet, daß dieser Halteabschnitt mit einem von der Verbindungswand nach außen kragenden, von einer Rotationssymmetrieachse wegweisenden Halterand ausgebildet ist.
- Verfahren gemäß mindestens einem der Ansprüche 1 - 21, dadurch gekennzeichnet, daß ein Verstärkungsring vorgesehen ist, welcher aus einem härteren Kunststoffmaterial gefertigt ist als das Material der Membran.
- Verfahren gemäß einem der Ansprüche 21 oder 22, dadurch gekennzeichnet, daß dieser Verstärkungsring 23 bei rotationssymmetrischem Ventilkörper rotationssymmetrisch gestaltet ist und eine Vielzahl von Durchbrechungen aufweist, in denen sich im gefertigten Endzustand Material des Halteabschnittes des Ventils befindet.
- Verfahren gemäß mindestens einem der Ansprüche 1 - 23, dadurch gekennzeichnet, daß der Ventilkörper aus einem Silikonmaterial besteht.
- Verfahren gemäß mindestens einem der Ansprüche 1 - 23, dadurch gekennzeichnet, daß der Ventilkörper aus einem thermoplastischen Elastomer besteht.
- Verfahren zur Herstellung eines selbstschließenden Ventils gemäß mindesten einem Ansprüche 1 bis 25, dadurch gekennzeichnet, daß vor dem Einspritzen des Kunststoffmaterials ein aus Kunststoff bestehender Verstärkungsring in die Form eingelegt wird, wobei dieser Kunststoffring wenigstens zwei Hohlräume aufweist, in welche das Kunststoffmaterial beim Einspritzen eindringt.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29703275U | 1997-02-25 | ||
DE29703275U DE29703275U1 (de) | 1997-02-25 | 1997-02-25 | Verschlußmembran |
EP98912395A EP0963323B1 (de) | 1997-02-25 | 1998-02-25 | Selbstschliessendes ventil und behälter mit diesem selbstschliessenden ventil |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98912395A Division EP0963323B1 (de) | 1997-02-25 | 1998-02-25 | Selbstschliessendes ventil und behälter mit diesem selbstschliessenden ventil |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1078863A1 EP1078863A1 (de) | 2001-02-28 |
EP1078863B1 true EP1078863B1 (de) | 2003-12-17 |
Family
ID=8036454
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98912395A Expired - Lifetime EP0963323B1 (de) | 1997-02-25 | 1998-02-25 | Selbstschliessendes ventil und behälter mit diesem selbstschliessenden ventil |
EP00124846A Expired - Lifetime EP1078863B1 (de) | 1997-02-25 | 1998-02-25 | Verfahren zur Herstellung eines selbstschliessenden Ventils |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98912395A Expired - Lifetime EP0963323B1 (de) | 1997-02-25 | 1998-02-25 | Selbstschliessendes ventil und behälter mit diesem selbstschliessenden ventil |
Country Status (6)
Country | Link |
---|---|
EP (2) | EP0963323B1 (de) |
AT (2) | ATE229458T1 (de) |
AU (1) | AU6725198A (de) |
DE (3) | DE29703275U1 (de) |
ES (2) | ES2189147T3 (de) |
WO (1) | WO1998038102A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29913319U1 (de) * | 1999-07-29 | 2000-12-07 | Weener Plastik GmbH & Co KG, 26826 Weener | Selbstschließendes Ventil |
ES2253239T3 (es) * | 1999-07-29 | 2006-06-01 | WEENER PLASTIK GMBH & CO. KG | Valvula de cierre automatico. |
GB0121377D0 (en) † | 2001-09-04 | 2001-10-24 | Aqualisa Products Ltd | Shower handset |
DE10218363A1 (de) * | 2002-04-25 | 2003-11-13 | Alpla Werke | Selbstschließendes Ventil |
WO2004026721A2 (de) * | 2002-09-16 | 2004-04-01 | Alpla-Werke Alwin Lehner Gmbh & Co. Kg | Selbstschliessendes membran-ventil |
DE102005012706B4 (de) * | 2005-03-11 | 2006-11-23 | Hansa Metallwerke Ag | Duschkopf |
NL1038867C2 (en) * | 2011-06-09 | 2012-12-11 | Bokhoven Markus Theodorus Johannes Fanciskus Van | OOZING FREE CAULKING AND GLUEING GUN BASED ON VACUUM. |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4728006A (en) * | 1984-04-27 | 1988-03-01 | The Procter & Gamble Company | Flexible container including self-sealing dispensing valve to provide automatic shut-off and leak resistant inverted storage |
US4749108A (en) * | 1986-12-19 | 1988-06-07 | The Procter & Gamble Company | Bimodal storage and dispensing package including self-sealing dispensing valve to provide automatic shut-off and leak-resistant inverted storage |
CA2058874A1 (en) * | 1991-01-14 | 1992-07-15 | Robert D. Rohr | Dispensing closure with pressure-actuated flexible valve |
US5213236A (en) * | 1991-12-06 | 1993-05-25 | Liquid Molding Systems, Inc. | Dispensing valve for packaging |
DE69206120T2 (de) * | 1992-02-14 | 1996-07-04 | Procter & Gamble | Vorrichtung umfassend einen mit einem Schlitzventil als Entlüftungsventil versehenen Behälter und eine in diesem Behälter enthaltene Flüssigkeit. |
EP0586778A1 (de) * | 1992-09-10 | 1994-03-16 | The Procter & Gamble Company | Stehende Flüssigkeit enthaltendes System mit Selbstverschlussventil |
US5531363A (en) * | 1994-06-10 | 1996-07-02 | Aptargroup, Inc. | Dispensing closure cartridge valve system |
DE29508151U1 (de) * | 1995-05-17 | 1995-08-17 | Georg Menshen GmbH & Co KG, 57413 Finnentrop | Schlitzventil zum Verschließen von Behältern |
-
1997
- 1997-02-25 DE DE29703275U patent/DE29703275U1/de not_active Expired - Lifetime
-
1998
- 1998-02-25 AT AT98912395T patent/ATE229458T1/de active
- 1998-02-25 WO PCT/EP1998/001075 patent/WO1998038102A1/de active IP Right Grant
- 1998-02-25 AU AU67251/98A patent/AU6725198A/en not_active Abandoned
- 1998-02-25 DE DE59806624T patent/DE59806624D1/de not_active Expired - Lifetime
- 1998-02-25 AT AT00124846T patent/ATE256604T1/de active
- 1998-02-25 ES ES98912395T patent/ES2189147T3/es not_active Expired - Lifetime
- 1998-02-25 EP EP98912395A patent/EP0963323B1/de not_active Expired - Lifetime
- 1998-02-25 ES ES00124846T patent/ES2212956T3/es not_active Expired - Lifetime
- 1998-02-25 DE DE59810488T patent/DE59810488D1/de not_active Expired - Lifetime
- 1998-02-25 EP EP00124846A patent/EP1078863B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0963323B1 (de) | 2002-12-11 |
AU6725198A (en) | 1998-09-18 |
EP1078863A1 (de) | 2001-02-28 |
DE59806624D1 (de) | 2003-01-23 |
ES2212956T3 (es) | 2004-08-16 |
WO1998038102A1 (de) | 1998-09-03 |
EP0963323A1 (de) | 1999-12-15 |
DE29703275U1 (de) | 1998-06-25 |
DE59810488D1 (de) | 2004-01-29 |
ATE229458T1 (de) | 2002-12-15 |
ES2189147T3 (es) | 2003-07-01 |
ATE256604T1 (de) | 2004-01-15 |
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