EP0665169B1 - Schraubverschluss mit Kindersicherung - Google Patents
Schraubverschluss mit Kindersicherung Download PDFInfo
- Publication number
- EP0665169B1 EP0665169B1 EP94118730A EP94118730A EP0665169B1 EP 0665169 B1 EP0665169 B1 EP 0665169B1 EP 94118730 A EP94118730 A EP 94118730A EP 94118730 A EP94118730 A EP 94118730A EP 0665169 B1 EP0665169 B1 EP 0665169B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- screw cap
- thread
- threaded neck
- closure
- teeth
- 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
Links
- 239000004033 plastic Substances 0.000 claims description 10
- 229920003023 plastic Polymers 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 7
- 230000004323 axial length Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims 1
- 210000003811 finger Anatomy 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002991 molded plastic Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 210000005224 forefinger Anatomy 0.000 description 1
- 210000004247 hand Anatomy 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
Images
Classifications
-
- 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
- B65D47/061—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages with telescopic, retractable or reversible spouts, tubes or nozzles
- B65D47/063—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages with telescopic, retractable or reversible spouts, tubes or nozzles with flexible parts
-
- 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
- B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
- B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
- B65D41/04—Threaded or like caps or cap-like covers secured by rotation
- B65D41/0471—Threaded or like caps or cap-like covers secured by rotation with means for positioning the cap on the container, or for limiting the movement of the cap, or for preventing accidental loosening of the cap
-
- 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
- B65D2215/00—Child-proof means
- B65D2215/02—Child-proof means requiring the combination of simultaneous actions
Definitions
- the present invention relates to a container closure with a threaded connector and a screw-on screw-on cover, the threaded connector being made of a deformable Plastic material and there are toothed elements in the area of the threaded connector and are provided in the course of the screw thread of the screw cap, which at screw cap fully screwed to the threaded connector stand and allow unscrewing the screw cap only if either the Threaded connector and / or the screw cover deformed in the comparison of the toothing elements to disengage the gear elements.
- EP-0 569.897-A1 discloses a screw closure for containers with threaded connections, in which the lower edge of a screw cap is toothed and below of the thread on the outside of the threaded connector corresponding toothing elements for the engagement are provided with the toothed edge of the screw cap.
- US-A-5 096 083 shows a barrel, the upper edge of which is a threaded connector is formed, which has the full barrel diameter.
- a threaded connector is formed, which has the full barrel diameter.
- the ton consists of polyethylene or a similar plastic material.
- an inward radial pressure is applied to the wall of the container below the screw thread, e.g. B. in the region of a handle arranged clearly below the thread.
- Ton has a relatively large radius
- the material of such a ton has and must have a certain rigidity, such a radial pressure leads below the Thread to a relatively large area deformation, which also covers the entire thread area up to the top of the barrel, so that the barrel is in the area of the gear teeth is dented over a large area.
- the toothing elements can disengage.
- the closure according to EP-0.569.897-A1 shows gear elements at the lower end of the screw cap and at an appropriate position of the threaded connector, however this configuration that the threaded connector below the screw cap with the Fingers of one hand can be gripped and compressed in the area of the procedure.
- the teeth and their engagement is visible, so that children in one somewhat advanced age, which in itself does not have free access to the container contents should be able to open such a closure by opening it recognize the toothing as an obstacle and the closure piece accordingly squeeze.
- Closures with a double screw cap in which an outer screw cap can be rotated loosely but is not removably placed on an inner screw cap, which has a container neck or closes a threaded connector and the outer screw cap in turn only can be brought into sufficient engagement with the inner cap by radial or axial pressure, to unscrew the inner cap together with the outer one when this pressure is during unscrewing is maintained.
- the plastic parts, of which such closures generally consist are usually in one Injection molding process is produced, a corresponding shape defining a cavity, the corresponds to the impression of the part to be manufactured, and the plastic is then in this Cavity injected, whereupon the molds from which the cavity is formed be moved apart to take out the injection molded plastic part.
- This so-called demolding process requires that in the direction of movement Form no undercuts, at least no noteworthy undercuts available.
- Shapes can be assembled from a larger number of tools so that the The above-mentioned condition can be met, that is, the finished molded plastic part can easily detach from the mold.
- the object of the present invention is to create a closure with the features mentioned above, which is also relative small closure dimensions work safely and none directly from the outside visible locking mechanism.
- the toothing elements are therefore at least on the screw cap in the course of the thread, i.e. as part of the thread itself or in its imaginary continuation is arranged, provided that the toothing having threaded area in the screwed state of the two parts with the teeth of the threaded connector are engaged.
- a local is also sufficient Deformation of either the lower edge of the screw cap, e.g. B. by ovalizing them, or of the threaded connector, immediately below the edge of the screw cap disengaging the teeth. It is not necessary that the local applied pressure leads to extensive deformation of the threaded connector.
- teeth of the threaded connector can still be in the threaded area of the Threaded connector or outside this thread range, i.e. under and preferably be arranged directly under the thread of the threaded connector.
- This Gears do not necessarily have to be the thread course or the Thread profile follow and above all can be wider than a thread bridge.
- the particular advantage of adapting the toothing of the screw cap to the course of the thread and the thread profile is that now the teeth of the screw cap, without interfering with the thread, with the teeth of the threaded connector can be engaged by the teeth of the screw cap as part of the Thread is simply screwed through the thread of the threaded connector until towards the end of the screwing process, the gear elements on the threaded connector can be achieved with which the teeth of the screw cap engage, wherein in The gears are usually moved slightly over one another in the closing direction can be, while the gear engagement in the opposite direction unscrewing the Blocked cap.
- the toothing elements should be correspondingly wide, which in the case of the screw tip means that the thread webs are also corresponding should be broad.
- the subclaims therefore deal with, among other things according to appropriate configurations of the thread profile.
- An embodiment of the invention in which the closure is particularly preferred is designed as a bellows closure, because in particular for this type of closure no satisfactory solutions to the problem of child protection are known, even if the publications mentioned at the beginning deal with bellows closures.
- the invention Closure does not take up much more space than a conventional one Closure without childproof lock, which is particularly important for bellows closures Significance is given, as otherwise, with such bellows closures at a given Container opening often had to reduce the spout diameter to match To accommodate child safety elements and still with the closure part in question to be able to demold reasonable effort.
- the toothings are expediently on the cap just in the end area reaching the lower edge of the cap the thread or the threads arranged.
- the matching counterparts of the toothing are at the same axial height arranged like the gear elements on the screw cap, based on the complete state of the cap screwed onto the socket.
- an embodiment of the invention is particularly preferred in which the Profile of at least one of the threads axially parallel sections of at least 0.5 mm, preferably of more than 1 mm in length.
- the projecting Threaded webs can be correspondingly wide and e.g. in cross section a trapezoidal profile have, with the shorter of the parallel sides of the trapezoid the axis-parallel mentioned Section forms. This leads to the fact that the teeth formed in such a web a have the appropriate width and therefore a corresponding strength.
- the thread on the screw cap and threaded connector as two-start threads are formed.
- toothed sections on the screw cap or on the threaded connector by about 180 ° relative to each other can be arranged offset and at the same axial height, e.g. near the free end of the screw cap.
- the ovalization mentioned above either the screw cap or the threaded connector always leads to a similar one Deformation on diametrically opposite or offset by 180 ° to each other Sides of the screw cap and / or the threaded connector, so that the toothing elements expediently be arranged simultaneously on opposite sides.
- a variant of the invention is preferred in which the radial dimension of the Toothings on the screw cap and / or on the threaded connector on the radial Height or the radial dimension of the respective thread is limited. This measure too contributes to the demolding of such closures, i.e. here separating from the Manufacturing forms can be ensured without additional effort.
- FIG. 1 you can see a narrow hatched closure part 6, which is a so-called Has locking foot 7, for example in the edge of a circular Opening of a sheet metal container is bouncing.
- the locking foot 7 is via a flexible bellows 4 connected to a bellows spout 3, which is a more or less cylindrical part, whose upper section is formed by a threaded connector 3a.
- the in use Free outflow opening of the bellows spout 3 is by an unspecified seal closed with tear-off ring.
- the screw cap 1 is somewhat wider and compared to the lower part of the closure hatched opposite slope.
- the screw cap 1 consists of the so-called Cap base 14, one or two fold-out pull-out brackets 15, a cylindrical Part 16 with an internal thread and a cylindrical sealing lug 17 which seals in the Threaded connector 3a engages while the cylindrical part 16 on the external thread of the Threaded connector 3a is screwed on.
- the axial length h of the thread web 11 and thus the minimum width of the teeth 2, which with corresponding teeth 5 of the lower closure part 1 engage, is at least 0.5 mm, but should preferably be more than 1 mm. As you can see, it has Screw cap 1 no bulge, extension or other additional space, because ultimately the teeth 2 only through recessed areas 12 in an already existing one Threaded web 11 can be defined.
- the teeth 5 are provided on the axial height corresponding to the teeth 2, which engage with the teeth 2. This can cause the thread of the threaded connector 3a easily extend into the area of these teeth 5, i.e. teeth 5 could easily the lowest portion of the thread of the threaded connector 3a define.
- the bellows spout 3 or the bellows 4 even in the area where the bellows spout 3 attaches to the teeth 5 Press the areas radially inwards, for example by the two opposite sides gripped between thumb and forefinger and pressed together, so that the teeth 5, 2 come out of engagement and the screw cap 1 can be unscrewed.
- the closure must therefore be gripped with two hands at the same time, around the screw cap to be able to solve, the compression of the bellows 4 or the bellows spout 3rd immediately below the lower edge 10 of the screw cap 1 and at the correct, diametrical opposite positions must take place, which have the teeth 5 to the To be able to loosen screw cap 1. Children who are not yet able to do the possible The risk of liquids in such a container should be assessed in the general also will not be able to correctly open an appropriate operation to execute.
- a closure with child protection is provided, on the other hand extremely is designed to save space and compared to conventional closures, especially in In the case of bellows closures, shows only minor changes.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
Description
- Figur 1
- einen Axialschnitt durch einen erfindungsgemäßen Balgverschluß,
- Figur 2
- einen Schnitt entlang der Ebene A-A senkrecht zur Ebene der Figur 1 und
- Figur 3
- einen Axialschnitt durch eine Schraubkappe mit einer Draufsicht auf das Innengewinde der Schraubkappe.
- 1
- Schraubkappe
- 2
- Verzahnung
- 3
- Balgausgießer
- 3a
- Gewindestutzen
- 4
- Balg
- 5
- Verzahnung
- 6
- Verschlußunterteil
- 7
- Verschlußfuß
- 10
- Rand
- 11
- Gewindesteg
- 12
- Einkerbungen
- 13
- Gewindefläche
- 14
- Kappenboden
- 15
- Auszugbügel
- 16
- zylindrisches Teil der Schraubkappe
- 17
- Dichtungsansatz
- h
- Länge
Claims (9)
- Behälterverschluß mit einem an einem Behälter vorgesehenen Gewindestutzen (3) und einem darauf aufschraubbaren Schraubdeckel, wobei Verzahnungselemente (2, 5) im Bereich des Gewindestutzens (3) und der Schraubkappe (1) vorgesehen sind, welche bei vollständig verschraubter Schraubkappe (1) miteinander in Eingriff stehen und ein Abschrauben der Schraubkappe (1) nur dann erlauben, wenn entweder der Gewindestutzen (3) und/oder die Schraubkappe (1) im Bereich der Verzahnungselemente (2, 5) verformt werden, um die Verzahnungselemente (2, 5) außer Eingriff zu bringen, und wobei die Verzahnungselemente (2) der Schraubkappe (1) dem Verlauf des Schraubgewindes folgen und sich nicht über dessen Profil hinaus erstrecken dadurch gekennzeichnet, daß der Schraubdeckel als mit den Fingern einer Hand zu ergreifende Schraubkappe (1) ausgebildet ist, daß mindestens der Gewindestutzen (3) aus einem durch Fingerdruck verformbaren Kunststoffmaterial besteht und daß die Verzahnungselemente der Schraubkappe (1) am unteren Ende des Schraubkappengewindes nahe dem unteren Rand der Schraubkappe vorgesehen sind.
- Behälterverschluß nach Anspruch 1, dadurch gekennzeichnet, daß er ein Verschlußunterteil (6) aufweist, welches einen an einer Behälteröffnung fixierbaren Verschlußfuß (7) und einen von diesem ausgehenden, flexiblen, ausstülpbaren Balg (4) aufweist, an welchen ein Balgausgießer (3) anschließt, der einen Gewindestutzen (3) hat, und daß Verzahnungselemente (5) am unteren Ende des Gewindeabschnittes des Gewindestutzens (3) oder unmittelbar unter dem Gewinde des Gewindestutzens (3a) angeordnet sind.
- Verschluß nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Verzahnungselemente (2) der Schraubkappe mindestens einen Teil eines Gewindeganges (8) der Schraubkappe bilden.
- Verschluß nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Gewinde (8) der Schraubkappe bis nahe an den unteren Rand (10) der Schraubkappe heranreicht.
- Verschluß nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß asymmetrische Einkerbungen (12) in dem vorspringenden Gewindesteg (11) der Schraubkappe (1) oder des Gewindestutzens (3a) und entsprechende Vorsprünge (5, 2) axial außerhalb des Gewindes (9, 8) oder in den Vertiefungen des Gewindes (9, 8) des jeweils anderen Teiles (Gewindestutzen (3a) oder Schraubkappe (1)) vorgesehen sind, welche in die Einkerbungen (12) eingreifen.
- Verschluß nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Gewindeprofil mindestens eines der Gewinde (8, 9) zur Gewindeachse parallele Abschnitte (13) von jeweils mindestens 0,5 mm axialer Länge aufweist.
- Verschluß nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das Gewinde zweigängig ist.
- Verschluß nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß Verzahnungen (2, 5) an um 180° versetzten, gegenüberliegenden Abschnitten der Schraubkappe und/oder des Gewindestutzens, vorzugsweise jeweils auf gleicher axialer Höhe, vorgesehen sind.
- Verschluß nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß das radiale Maß der Verzahnungen (2, 5) an der Schraubkappe (1) und/oder am Gewindestutzen (3a) auf die radiale Höhe des jeweiligen Gewindeprofils beschränkt ist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4400993 | 1994-01-14 | ||
| DE4400993A DE4400993A1 (de) | 1994-01-14 | 1994-01-14 | Schraubverschluß mit Kindersicherung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0665169A1 EP0665169A1 (de) | 1995-08-02 |
| EP0665169B1 true EP0665169B1 (de) | 1998-07-22 |
Family
ID=6507959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94118730A Expired - Lifetime EP0665169B1 (de) | 1994-01-14 | 1994-11-29 | Schraubverschluss mit Kindersicherung |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0665169B1 (de) |
| AU (1) | AU1020095A (de) |
| DE (2) | DE4400993A1 (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4433160A1 (de) * | 1994-09-17 | 1996-03-21 | Berg Jacob Gmbh Co Kg | Behälterverschluß mit Kindersicherung |
| GB2358626A (en) * | 2000-01-26 | 2001-08-01 | Bericap Uk Ltd | Screw on container closures |
| GB2409200B (en) * | 2003-12-19 | 2007-01-17 | Beeson & Sons Ltd | Bottle and closure assembly with improved locking elements |
| CN110316465A (zh) * | 2019-07-05 | 2019-10-11 | 赫蕾雪(上海)科技有限公司 | 一种儿童安全瓶 |
| DE102021109404A1 (de) * | 2021-04-14 | 2022-10-20 | Endress+Hauser Flowtec Ag | Schutzhaube für ein Feldgerät und Feldgerät der Mess-/Automatisierungstechnik |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2514327B1 (fr) * | 1981-10-13 | 1985-10-11 | Oreal | Flacon a capsule de bouchage orientee angulairement par rapport audit flacon |
| GB2108095B (en) * | 1981-10-26 | 1986-03-12 | Rieke Corp | Childproof closures |
| US5096083A (en) * | 1990-05-08 | 1992-03-17 | Essef Corporation | Polyethylene shipping drum |
| DE9206318U1 (de) * | 1992-05-11 | 1992-07-30 | Herberts Gmbh, 5600 Wuppertal | Vorrichtung zum Verschliessen von Behältern, insbesondere von Dosen |
-
1994
- 1994-01-14 DE DE4400993A patent/DE4400993A1/de not_active Withdrawn
- 1994-11-29 DE DE59406495T patent/DE59406495D1/de not_active Expired - Fee Related
- 1994-11-29 EP EP94118730A patent/EP0665169B1/de not_active Expired - Lifetime
-
1995
- 1995-01-13 AU AU10200/95A patent/AU1020095A/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| EP0665169A1 (de) | 1995-08-02 |
| AU1020095A (en) | 1995-07-27 |
| DE4400993A1 (de) | 1995-07-20 |
| DE59406495D1 (de) | 1998-08-27 |
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