DE7235159U - Container lock - Google Patents

Description

· ": -":: 'DriMäxSchneider.:' ... ::. ^: . £) rJÄIfried: Eitel ο. _Ρ . ,, η ₀ Ernst Czowalla ». Patent Attorneys Peter Matschkur _Dlp ,, p _hy .

85 Nuremberg 106, KoenlgetraBe 1 (museum bridge) Telephone collective no. 203931

se car park Katharinenhof IB car park »A4lerttra.Be

this. No. 24 844 / Ma-ap

Allan Costa, West-Islip / New York / USA 682 Udall Road

¹¹ container lock "

The invention relates to a container closure which has a screw cap which can be connected to a neck of the container.

In the case of the previously known container closures of this type, the screw cap is directly accessible to the user and is generally unscrewed by turning counterclockwise and unscrewed by turning clockwise.

This simple mechanism carries the risk that even small children are able to use one To open the container closure and thus to the container contents

Deutsche Bank A. β. Nuremberg No. 03/30 888, BLZ 780 70012 · Hypobank Nürnberg No. 158/274 SOO, BLZ 760 20214 Pott «diekraMMrNl | b ^Νι Μ3β3054β5 • Jgrahtanschrlft: Norltpatent

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which often leads to injuries, especially poisoning, leads.

The invention is based on the object of such a container closure to be designed in such a way that it can be screwed open and closed as often as desired, but that in particular unscrewing is not possible by simply turning the cap, which is accessible from the outside, in order to avoid the risk of opening the Can be largely switched off by children. The container closure should be designed so that on the other side does not require any additional opening and reclosing Aids such as special tools are necessary.

To solve this AuJJabe is with a container closure the initially mentioned type provided according to the invention that the Screw cap can only be rotated after coupling with an overlapping telescopic cap that is axially movable for coupling.

Due to the design according to the invention, it is necessary to screw such a container closure on or off, at the same time as the rotary movement of the externally accessible telescopic cap, an axial displacement of this telescopic cap relative to it make the container in order to couple the telescopic cap with the screw cap and thus the rotary movement on the Put the cover cap on the actual screw cap.

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In a further development of the invention it is provided that only the screw cap completely overlaps in height The telescopic cap is accessible to the user, so that direct access to the can be achieved by a simple rotary movement reveal screw cap is prevented. In this way it is ensured that only one simultaneous Axial movement and a rotary movement of the telescopic cap an actuation of the screw cap representing the actual closure part is possible. The risk of performing these two movements at the same time by using a container with Such a lock playing toddler is extremely small, so that there is an effective security is.

The telescopic cap can advantageously be arranged captive on the screw cap, in particular in that a inner edge bead of the telescopic cap engages under the outer edge, or projections proceeding therefrom, of the screw cap, so that but not by axially pulling the telescopic cap off the screw cap, it is accessible again to direct external access can be.

In order to couple the push-on cap to the screw cap in the event of an axial movement of the two against one another, in an embodiment of the invention on the screw cap latches can be provided with counter-latching of the telescopic cap in its axial Work together movement. As a detent the screw cap can

with radially protruding outer ribs and grooves and ice counter-latches the telescopic cap radially protruding inner counter-grooves and counter-ribs are used, each of which is only used in one Axial displacement of the telescopic cap compared to the outer cap interlock while they are normally separated from each other, so that the inverted cap freely around the screw cap is rotatable.

To make sure that the telescopic cap and the visible cap are normally decoupled from one another, so that a rotation of the telescopic cap does not cause a corresponding rotation of the Screw cap has the consequence and so that the container closure can not be opened, is in a further development of the invention provided that the telescopic cap is under the action of elastic members securing it in the uncoupling position and can only be moved axially into the coupling position by overcoming them.

Spring bars located between the telescopic cap base and the screw cap base can advantageously be used as elastic members of this type serve, which can form slotted rings, in particular in one piece with the telescopic cap, which disc-shaped cams opposite the screw cap.

In such a container closure according to the invention, the screw cap representing the actual closure member can directly on the provided with a corresponding external thread

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can be screwed onto the neck of a container. In a further embodiment of the invention, however, it is particularly advantageous a, preferably releasably, rigidly attachable to the container, at least a part of the neck of the container forming base part be provided with an external thread corresponding to the internal thread of the screw cap, so that only through corresponding adaptation of this base part one and the same screw cap with associated snap-on cap for containers with different shaped and in particular necks of different widths can be used.

The base part can be designed so that it is in a The opening of the lid of the container forms the entire neck of the container in a snap-in manner, the snap-in connection of course In addition, it cannot be rotated between the base and the container must be designed so as not to unscrew and unscrew the container closure when it is in the coupling position To disturb the telescopic and screw cap.

For inserting a container closure according to the invention for containers which are already provided with a neck it is advantageous if the base column has a cylindrical upper part Threaded portion and one with this integral, with an annular recess the edge of the neck of the container Has overlapping slip-on section.

The Bed.teil replaces an upper threaded section of the

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Neck of the container for screwing on the screw cap, with the advantage thereby given, not the screw and Cap of the dimension of the neck of a container or vice versa to have to adapt, but to make this adaptation by appropriately designing only the base part to be able to.

For a rigid, in particular non-rotatable connection of the Aufsteckabeehnittes old the neck of a container can at the lower edge of the slip-on section, preferably on both sides, in the annular recess radially re-entrant snap catches can be provided, which in corresponding counter snap catches on engage the top of the neck of the container.

Advantageously, it can be provided for this purpose that a bead on the inner wall of the annular recess a bead on the neck of the container, which protrudes into the neck opening engages behind while on the opposite outer wall the annular recess of the base part projections are formed in from the upper edge of the neck of the container spaced recesses can snap into place. The base part should in particular have an essentially H-shaped cross section have, so that a configuration is possible in which the outer diameter of the telescopic cap corresponds to the outer diameter of the Aufsteckabsschnittes corresponds to the base part.

To open a container closure according to the invention

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On the one hand, with the container that has not yet been used for children, it is more difficult, especially for the runner or to give the user the guarantee that the container has never been opened can be provided in a further development of the invention be that the telescopic cap only after removing a tear strip let in between it and the container can be moved into the coupling position.

When using one of the aforementioned Basistei.1,3 with a With an essentially H-shaped cross-section, the tear-off cord can advantageously be positioned between the inverted cap and the outwardly directed horizontal ring legs of the base part, since the base part - only to adapt one and the same Screw and snap-on cap arrangement serving different neck diameters - practically a part of the container neck represents.

In order to prevent the security formed by the tear-off cord from being rendered ineffective by simply bending out the tear-off cord, this is advantageously designed so that it has projections on the underside in recesses of the ring leg of the base part engages. This ensures that only by tearing off the pull-off strand, the telescopic cap be brought into the coupling with respect to the screw cap can and thus opening of the container closure is only possible after this removal of the tear strip.

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Further advantages, features and details of the invention emerge from the following description of some exemplary embodiments based on the figures in the drawing:

It shows:

Fig. 1 is a greatly enlarged axial section through the upper part of a container provided with a neck with a container closure according to the invention;

FIG. 2 shows a section II-II in FIG. 1 of the base part in FIG smaller scale;

3 shows a further reduced, angled axial section according to the line III-III in Fig. 2 through the base part;

4 shows a perspective view of the telescopic cap with Tear-off strand according to Figure 1 obliquely from below;

5 shows an axial section through the telescopic cap according to FIG. 4; 6 shows a section IV-IV through the arrangement according to FIG. 5;

Fig. 7 is a perspective view of the screw cap used in Fig. 1 and

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8 _W 9, 10, 11, 12, 13, 14 + 15 with respect to the embodiment according to FIGS. 1 to 7 modified embodiments of a telescopic cap and an associated screw cap,

In Fig. 1, a container is marked with 1, on the neck 2 of which a base part 3 is clamped, on the upper cylindrical Threaded section 4 a screw cap 6 over which a push-on cap 5 overlaps can be screwed on. The base part 3, which with a plug-on section 7 having an annular recess 8 is pushed non-rotatably over the edge of the neck 2, is used only once to adapt screw caps 6 of a certain size to containers with necks 2 different piercers; because e «is easier. such a base part To inject plastic than to produce separate greetings for screw caps 6 and these adapted telescopic caps 5 for each neck diameter and to keep them in stock, and on the other hand to do this, there is no need to provide a thread for screwing on the screw cap 6 on the outer circumference of the neck 2.

The ring recess 8 in the Aufstecksteckt 7 of the base part 3 creates an inner ring wall 9 and a concentric one outer ring wall 10, of which the outer ring wall 10 is longer than the inner ring wall 9 · The two ring walls are through connected to an outwardly directed horizontal ring leg 11 from the cylindrical upper threaded section.

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When the base part 3 is stuck onto the neck 2 of the container 1, this neck 2 penetrates into the recess 8 and is supported with its upper edge 12 resiliently on the inside of the ring leg 11 * A bead protruding into the recess 8 13 at the lower end of the inner ring wall 9 engages under an edge bead that protrudes into the neck opening 14 at the upper edge of the neck 2, while arranged on the inner surface of the outer ring wall 10 projections 16 in corresponding Shaped and distributed over the neck circumference depressions 17 snap into place, both upwards and downwards through a bead 18 are completed. The resilient locking of the edge bead 13 of the base part behind the edge bead 15 of the neck and the projections 16 in the recesses 17 of the neck ensure a rigid definition of the Base part with respect to the neck 2 of the container 1, since they both a movement in the axial direction, as well as - through the projections 16 and depressions 17 distributed on the circumference Prevent rotational movement around the common central axis.

The screw cap 6, which is on the inside of the screw cap base 19 has an annular bead 20 serving for stiffening and better sealing, one has the cylindrical upper threaded section 4 of the base part 3 overlapping screw cap wall 21, in which an internal thread 22 accordingly the external thread 23 of the threaded section 4 is introduced.

For coupling the inverted cap 5 with the outside itself not

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accessible screw cap 6, so that a rotary movement of the telescopic cap leads to screwing on or unscrewing the screw cap 6 from the cylindrical upper threaded section 4 of the base part 3, are arranged as corresponding notches on the screw cap once at its lower edge over the screw cap wall 21 outwardly protruding, a ring of teeth resulting, ribs 24 and distributed on the peripheral edge of the screw cap base 19 Grooves 25 provided, those of the Stülpkappenwand 26 after internally re-entrant an internal gear rim resulting counter ribs 27 as well as obliquely in the Beid.ch the edge between the Stülpkappenvand 26 and the Stülpkappenboden 28 running Counter ribs 29 correspond. To prevent the telescopic cap 5 from being pulled upward from the screw cap 6, the Stülpkappenwand 26 on an inner edge bead 30 which engages under the tooth-shaped ribs 24.

On the inside of the Stülpkappenboden 28 formed as slotted rings Pederstege 31 are formed, which disc-shaped cams 32 on the outside of the screw cap base 19 are opposite.

The Pedestege 31 hold the Stülpkappenboden 28 at a certain distance from screw cap base 19 such that the serving as counter-latches counter-ribs 27 and 29 on the telescopic cap only by axial pressure on the telescopic cap in the Coupling position get between the notches of the screw cap

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which are formed by the ribs 24 and the grooves 25.

In the original state of a container seal according to the invention a tear-off strand 33 is arranged between the inverted cap 5 and the annular limb 11 of the base part 3, the protrusions 34 on the underside in recesses 55 of the annular limb of the base part 3 engages. To open the originally closed fairy container can the through a narrow web 36 with the hood i? connected tear strip 33 by tightening on one Gripping tab 37 can be separated. Axial pressure on the telescopic cap can then be used to overcome the spring force of the Spring bars 31 are shifted downwards so that the counter-latches on the inside of the telescopic cap fit into the latches of the screw cap intervene so that a rotational movement exerted on the telescopic cap at the same time as the axial pressure is applied to it transferred to the screw cap 6 wild; to unscrew them and to open the keeper. At this point it should be pointed out that it is of course also sufficient would be, only the ring gears formed by the ribs and counter-ribs 24 and 27 for coupling the telescopic cap 5 and screw cap 6 or only the mating ribs on the telescopic cap and the grooves 25 on the screw cap, about the coupling between the telescopic cap and the coupling that occurs due to an axial displacement of the telescopic cap To effect screw cap.

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Both the base part 3 and the screw cap 6 and the StUlpkappe 5 are preferably made by injection molding Made of plastic, while the container 1 can be made of glass, plastic or metal.

Grooves 38 are provided on the outer circumference of the inverted cap wall 26 in order to prevent the edge of the respective operator from slipping when the inverted cap 5 is rotated.

In the modification of a telescopic cap 5 and an associated screw cap 6 shown in FIGS. 8 and 9, the Spring bar 31 on the inside of the inverted cap base 28 as an annular bead arranged concentrically to the inverted cap wall 26 formed, which a single disc-shaped cam 32 on the outside of the screw cap base 19 opposite.

While the counter-ribs 29 serving as counter-latches in the edge between the inverted cap wall 26 and the inverted cap base 28, as well as the associated grooves 25 on the circumference of the screw-cap base 19 in the arrangements according to FIGS. 8 and 9 in in the same way as in the arrangement according to 1 to 7, the second notches and counter-notches, which are complementary in the arrangement according to FIGS. 1 to 7 Toothed rings were formed, in the arrangement according to FIGS. 8 and 9 widened Hötzchen-shaped Rlppaa 24 on the outside of the screw cap wall 21, those on the inside of the

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Slip cap 26 arranged serving as counter-catches correspond to narrow counter-ribs 27, which in the event of an axial displacement of the The telescopic cap opposite the screw cap encompass the ribs 27 laterally while overcoming the spring force of the spring bar 31 and thus take the screw cap 6 with you when the faceplate 5 is rotated.

A container closure according to the invention creates by necessity the simultaneous application of fine axial pressure on the telescopic cap in addition to a screwing movement is an effective one Securing against opening one with such a container closure provided «! Container by children, since without axial pressure on the snap-on cap, it can be freely positioned around the screw cap Can rotate without taking it with you, while on the other hand, even when a once exerted axial pressure is released immediately returns to its disengagement position. In this way must actually during the entire unscrewing process both an axial pressure and a rotary movement can be exerted on the telescopic cap.

The arrangements according to FIGS. 10 to 15, which, with the exception of the lower catches and counter catches, are constructed in the same way as the The arrangement according to Figures 8 and 9 has in common that in addition to the ribs 29 on the inside of the inverted cap 5 and the Grooves 25 on the outer edge of the screw cap base 19 formed notches and counter-notches, which only after overcoming the

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Spring force of the spring bar 31 can intervene to to couple the inverted cap 5 and the screw cap 6 to a common rotation, on the outside of the screw cap wall 21 and the inside of the Stülpkappenwand 26 notches and Counter-latches are provided, which without axial displacement of the telescopic cap 5 relative to the screw cap 6 when screwing the duiöi they formed container closure (for closing of a container), while they interlock with an opposite rotation of the telescopic cap 5 in the direction of the opening direction of the container closure slide against each other without a coupling effect.

The counter-latches corresponding to the ribs 27 in FIG. 8 are wedge-shaped in the arrangement according to FIG. 10 as in the circumferential direction lx inwardly re-entrant ribs 39 formed on the the front end that enters the furthest in are tapered in a wedge shape. Correspondingly, the notches of the screw cap 6 Serving ribs 40 also wedge-shaped in the circumferential direction, protruding outward, formed and have on the The most outwardly projecting side has a wedge-shaped groove 42 on the axial one given by the spring bar 31 The spacing between the telescopic cap 5 according to FIG. 10 and the screw cap 6 according to FIG. 10 can, when the telescopic cap is rotated clockwise the wedge-shaped tips 41 of the ribs 39 engage in the wedge-shaped grooves 42 to the telescope cap 5 and to couple the screw cap 6 together so that the

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unscrew a container closure a formed from these two parts without the axial displacement of the telescopic cap 5 with respect to it which is necessary according to the invention when the container closure is opened the screw cap 6 is possible. In this way, the difficult handling for the purpose of child safety is eliminated Closing a container closure according to the invention at ever. the security required only for opening a container is superfluous.

If, on the other hand, the telescopic cap 5 according to FIG. 10 is rotated counterclockwise with respect to the screw cap 6 according to FIG. 11, so the lugs 39 and 40 slide off one another without the screw cap being entrained when the inverted cap is rotated. The container closure can only be opened when the hood cap 5 is turned counterclockwise at the same time is pressed axially downwards, so that the ribs snap into the grooves 25, to telescope cap 5 and screw cap to couple with each other.

In the arrangement according to FIGS. 12 and 13, the extension 39 on the telescopic cap 5 is made wider than in the axial direction in FIG. 10 and, moreover, no longer has a point, any more than the opposites 40 on the screw cap 6 13 have wedge-shaped grooves. A container closure according to FIGS. 12 and 13, however, otherwise works in the same way as that according to FIGS. 10 and 11, i.e. the container closure can be closed without any axial movement

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between the hooded cap 5 and screw cap 6 possible to open However, the container closure again requires the axial displacement of the two caps, which is necessary for child safety Simultaneously with the rotation of the telescopic cap 5.

In Figures 14 and 15, a StUlpkappe 5 and an associated screw cap 6 are shown, in which the radially protruding outer ribs 43 on the StUlpkappe 5 and the corresponding mating ribs 44 on the screw cap 6 are designed as threaded sections, which are also only used in the Closing the container closure formed from them causes a clockwise rotary movement to effect a coupling.

The invention is not limited to the exemplary embodiments shown. So it is in addition to a variety of different types of notches and counter-notches for Coupling of the inverted cap 5 with the screw cap 6 is also possible by setting the uncoupling position between the inverted cap and screw cap so that for coupling the StUlpkappe must move axially upwards relative to the screw cap, instead of the arrangement shown with a shift downwards.

In particular, it is also possible to use a container closure according to the invention together with a plastic nozzle for neckless container according to the US Patent ~% 388842.

After all, it is of course the easiest way to

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Guide form also possible, the mating thread for the screw cap 6 to be applied directly to the circumference of the neck of a container, the base part 3 then being omitted.

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Claims (10)

- 19 - Claims for protection 1. Child-proof container closure made of plastic with a screw cap that can be screwed onto a container neck, which only after the coupling with a spring bars that are completely overlapping in height and are integrally formed on the telescopic cap for coupling against the action of before, can be rotated axially, whereby the StUlpkappe captive on the by an inner edge bead engaging under the lower edge of the screw cap Screw cap is arranged and in capping radially protruding, has integrally formed ribs which cooperate during the coupling process to screw on, thereby characterized in that the container neck (2) has an external thread around a base part (3) fixed non-rotatably on the container (1) is extended and the StUlpkappe (5) only after tearing off one located between the cap edge and the base part (3) The tear strip (33) can be moved into the coupling position. 2. Container closure according to claim 1, characterized in that the base part (3) has a cylindrical upper threaded portion (4) and one with this integral with an annular recess (8) over the edge of the neck (2) of the container (1) has attachable slip-on section (7). 3. Container closure according to claim 2, characterized in that that at the lower edge of the slip-on section (7), preferably / 20 7235159 04/21/77 on both sides, radially protruding into the annular recess (8) Snap catches are provided, which in corresponding counter-snap catches on the edge of the neck (2) of the container (1) intervention. 4. container closure according to claim 3, characterized in that that an edge bead (13) on the inner wall of the annular recess (8) engages behind an edge bead (15) on the neck (2) of the container (1), which protrudes into the neck opening (14), while on the opposite outer wall of the ring * -shaped recess (8) of the base part (3) projections (16) are integrally formed, which are spaced apart from the upper edge of the ÜLses (2) of the container (1) Recesses (17) can snap into place. 5. Container closure according to one of claims 1 to 4, characterized characterized in that the base part (3) has a substantially H-shaped wall cross section. 6. Container closure according to one of claims 2 to 5, characterized in that the outer diameter of the telescopic cap (5) corresponds to the outer diameter of the slip-on section (7) of the base part (3). 7. Container closure according to claim 1, characterized in that the spring bars (31) slotted rings at the bottom of the telescopic cap (5), which are opposed to disc-shaped cams (32) of the screw cap. 7235159 04/21/77 8. BehalterverSchluß according to one of claims 1 to 7, characterized characterized in that there are ribs in the angular region between the inside of the inverted cap base (28) and the inverted cap wall (26) (29) are formed, which grooves (25) are assigned in the area of the outer edge of the screw cap base (19). 9. Container closure according to one of claims 1 to 8, characterized in that the tear-off strand (33) is attached to the outwardly directed horizontal ring leg (11) of the base part (3) _o 10. Container closure according to claim 9 »characterized in that that the tear-off strand (33) with projections (3A) on the underside in recesses (35) of the annular leg (11) of the base flow (3) intervenes. Container closure according to one of Claims 1 to 10, characterized characterized in that the telescopic cap (5) is provided with grip grooves, ribs or a groove (38) on the circumference. 7235159 04/21/77