SK102794A3 - Device for closing of vessel and the vessel - Google Patents

Abstract

A device for closing containers, in particular cans, is described, having a nozzle-shaped neck (1) which is or can be fixed on the container and is provided at its upper end with an external screw thread (2), and having a lid (3) which can be screwed onto the screw thread, the neck (1) and lid (3) having one or more interlocking devices (4, 5) which engage releasably in one another. The interlocking devices (4, 5) on the neck (1) and the lid (3) are formed in each case below the screw thread (2) in the direction towards the container, the interlocking devices (4, 5) on the lid (3) being designed to be rigid and on the neck (1) being designed to be elastically reversibly deformable, and the interlocking devices (4) on the neck (1) having such a longitudinal extent in the direction towards the container that they protrude beyond the lid (3) when said lid has been fitted on, thus resulting in pressure points (D) which allow the interlocking devices (4, 5) to be disengaged. The containers having the device are also described. <IMAGE>

Description

The invention relates to a device for closing a container, for example a container in the form of a bottle or a canister, which can be labeled as safe for children, i.e. cannot be easily opened by children. The invention also relates to a container provided with such a device on a discharge opening.

BACKGROUND OF THE INVENTION

Child-resistant closures are known for various containers. These are, for example, closures for plastic containers in which household liquid or solid products, such as cleaning agents, are stored. At the same time, it is necessary that these closures can be opened in a simple manner, but cannot be opened by children due to higher mechanical stresses. This is achieved, for example, by the fact that the closure must break at certain pre-prepared locations. However, only the container can be closed after the first opening. The child safety lock is no longer functional.

The child-resistant fasteners for liquid containers are also designed such that a hard plastic cap is screwed onto the screw thread of the container. The cap may, for example, consist of two interlocking parts, the inner part being threaded and can be connected to the outer part via the groove. The outer part of the cap then only engages in this groove when it is pressed against the inner part of the cap. Only in this case can the cap be opened by turning.

Furthermore, closures are known in which the container is threaded in the opening. Two recesses are formed below this thread. A cap made of soft elastic material is screwed onto this thread. This cap comprises two downward extensions that may extend into said recesses. The opening of the closure cap is then only possible if the lateral compression of certain points of the soft cap deforms the cap so that it becomes oval in shape. As a result, the cap extensions pointing downwards get out of the recess and the cap can be opened by rotation.

In addition, there is a requirement for closures of containers for environmentally hazardous liquids to be able to completely empty these containers. The fastening of the cap on the thread shall be designed in such a way that no areas of the container that will not allow liquid to flow out are formed. In addition, it must be possible to easily pour the contents from the container.

The closures shall ensure that the substances contained in the container cannot leak out. Usually they have to withstand only the stresses of the containers, or their closures, which are commonly found in households or during transport. However, they must also seal permanently at the point of transition of the metal container closure.

However, all the above-mentioned child-proof closures have the disadvantage that they do not meet the requirements! for safe transport packaging. In particular, the necessary choice of materials, such as hard brittle materials or particularly soft materials for closing caps, does not guarantee a secure closure. In addition, the various snap connections are susceptible to failure or too complicated when closing.

German utility model G 92 06 318.7 discloses a container closing device consisting of a neck with a screw-on cap, the neck and the cap being provided with interlocking teeth which engage with one another. In order to be able to release these teeth, the neck must be provided with an elastic region.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a device for closing a container, in particular a container containing a liquid, to prevent unwanted container leakage during transport and unprofessional handling, allowing simple and complete emptying of the container. several applications still meet these requirements, making it simple and practically independent of the material of the entire device.

SUMMARY OF THE INVENTION

This object is accomplished by a container closing device having a neck fixed or fastened to a container, which is provided at its upper end with an external screw thread and a screw-on cap screwed on the screw thread, the neck and cap being provided with one or more locking devices releasably According to the invention, the interlocking devices on the throat and the cap are each formed below the screw thread in the direction of the container, wherein the interlocking device is rigid on the cap and the throat is resiliently reversibly deformable, and the throat locking device in the direction of the container, they are of such a length that, when the cap is applied, they protrude beyond this cap, thus creating press points which enable the locking devices to be unlocked.

the teeth or the deformable flaps may be provided

The neck is provided with one or more locking elementary elements under the screw thread in the direction of the container. These locking elements can be designed to be deformable in the form of an oblique or cutting edge. They may, for example, be toothed with at least one tooth, preferably toothed from at least one tooth being formed on two opposite sides of the neck. Alternatively, two or more teeth may be formed together, but these teeth must be deflectable simultaneously from their position. The teeth or flaps have a slanted flank on one side, the slanting flanks being arranged such that the closure device (for example, the toothing) of the cap when screwing on the cap by screwing on these slanted surfaces of the slide. The other side of the teeth or flap may be formed perpendicular to the neck or with a steep inclination or may be designed as an undercut, i.e. a hollow space is formed between the wall of the neck and the tooth or flap. The locking device according to the invention is so flexible that it deforms, for example, into a flat shape by pressure. Thereby, the neck locking device can jump out of the cap. For example, the distance of the outer surface of the tooth or flap to the neck is thereby shortened, so that the toothing of the collar is no longer blocked when opening (unscrewing).

According to a preferred embodiment of the invention, the neck of the device according to the invention is designed in a stabilized manner so as to prevent the locking devices from jumping out by pressing the neck. These stabilizations may be carried out, for example, by one or more intermediate ribs provided between the printing points, in particular the opposing printing points. A further possibility of neck stabilization consists, for example, in the design of a circumferential rib on which it allows stabilization against the neck. In this way, the inner wall of the neck is prevented from being accidentally pressed by opening the locking device with unintended pressure on

The locking devices can then only jump out when the pressure is applied directly to the pressure points, that is to say an elastically reversible or reversibly deformable device. The intermediate rib is preferably designed to extend to the lower part of the locking devices formed on the neck. It starts and preferably inside the neck directly at the pressure points.

the throat, at that time, ends at the blocking reversibly deformable end

The cap (or the closure part) is provided with an internal thread, and at its lower edge, for example, a toothed rim is formed as a locking device, the teeth of which are formed so that they engage the teeth of the neck when the cap is rotated. Alternatively, the gear ring need not be continuous but may be intermittent and may consist of several teeth.

The closure is closed by twisting the threads together, the locking device (e.g. teeth or blades) of the cap easily sliding on the inclined sides of the flexible locking devices (e.g. teeth or blades) of the neck and in no way obstructing the closing procedure. The teeth or blades on the throat are designed so that they extend downwards so far that, after insertion and closing of the cap, they extend far below the cap so that pressure can be applied to them. For opening, the lower part can also press the elastic flexible locking device in its neck blocking elements, and the upper part, covered by the collar, is pressed inwardly from the collar of the collar.

This allows the thread to be released by rotation. After the application of pressure, the resilient teeth return to their original shape again. This allows the container to be opened and closed multiple times without damaging the closure device.

so in the impact strain energy.

The neck, as well as the lower neck portion of the closure device, can be formed of any material. It can be designed as rigid or resilient, as it does not in any way assist in closing and opening the closure device. According to a preferred embodiment of the invention, it can be formed in the form of a moss foldable and re-stretchable. When the neck is formed as a moss, it may have a folded shape when transported to itself and may be x by pulling out

stretched to a greater length. It is preferred that the neck or the lower part thereof is made of a resilient material, the mechanical load may engage the part

The undesired jump-off of the locking devices can be prevented according to a preferred embodiment of the invention by stabilizing the neck. This stabilization is carried out, for example, in the form of a central rib arranged between the pressure points across the neck or in the form of a circumferential rib on the inside of the neck, at least at the height of the pressure points. Towards the top opening of the neck, the material is less resilient as it forms a screw thread. The material must allow only a small amount of deformation to ensure that the container is always securely closed. Even when the locking device is depressed, the neck material has to release only a small amount in order to allow the threaded cap to be easily screwed. Also, the part of the neck below the flexible bellows part must be made of a less resilient or rigid material and is formed such that the lower opening of the neck is suitable for attachment or attachment to the container, thereby providing a more secure closure of the container. Preferably, this neck portion is also resilient to withstand impact loads without damage.

The fastening can be formed, for example, by means of a sleeve which extends into the opening of the container. A preferred embodiment here is that the sleeve extends from above beyond the (e.g., bent) edge of the container in order to seal the closure. The connection may also be secured by a circlip. Preferably, the cuff is not provided with any circumferential ring facing the interior of the container. This device is particularly suitable for emptying the container.

At the lower end of the thread on the neck of the device according to the invention, preferably outwardly directed locking devices, for example teeth, are formed on two opposite sides of the neck. The locking device, for example the teeth, may be formed directly on the neck or on the stabilizing protrusions, the protrusions having up to three, preferably two or one tooth or flap. These teeth or flaps face outwards. They are preferably molded so that one of their sides is oblique and the other preferably cuts the tooth or flap. The inclined side of the teeth is always arranged in the sense of rotation, the sense of rotation being related to the closing of the cap.

It is possible that the lower threaded part of the neck comprises a further closure cap which can only be used once. This closing cap is preferably arranged in the upper third of the thread height. For example, it may be molded as a continuous layer made together with the neck. This layer is, for example, thinner at the edge, so that the rupture can be made according to the thread course. Preferably, the closure cap is in the form of a cup. It is also possible to additionally place a sealing foil on the upper edge of the thread. In order to facilitate its easy removal, it is advantageous to provide this gripping part with a grip piece which makes it easier to tear. This attachment can also be used to check that the container is still in its original closed state.

The cap screwed onto the neck of the device according to the invention is provided with an internal thread. This internal thread is adapted to the threaded portion of the neck. When screwing on the cap, a tight seal is produced. Furthermore, this cap comprises at the underside of the thread a closing device, for example a toothed rim. This gear ring is directed inwards to engage the teeth of the lower closure portion facing outwards. These teeth have steep flanks and are preferably provided with a further angled flank. Alternatively, these teeth may have an undercut shape. The teeth are arranged against the sense of rotation when closing. The teeth may be fixed to the wall continuously, but it is preferred that the teeth are provided at the lower edge of the collar and are separated from each other by vertical recesses.

The closure cap according to the invention can be made of hard materials. These materials shall not be deformed by the pressure required to perform the rotary movement. Furthermore, these materials must have such flexibility that they will not be mechanically damaged or substantially deformed by possible impact. The neck in the threaded portion is preferably made of a material such that mechanical deformation does not lead to a leak in the screw cap. In the eventual treated bellows and the part, the material must be flexible. This can be achieved either by a suitable choice of the material used or by varying the wall thickness to influence its elasticity and hardness.

When closing, the screw thread portions of the neck and cap engage. They make the container safer. The slanting flanks of the collar and throat teeth slide one after the other in a screwing motion. No increased effort is needed. The opening of the closure is prevented by engaging the vertical and undercut flanks of the teeth in reverse direction of rotation. In this way, it is not possible to cause unintended opening by rotation. If pressure is applied to the lower tooth extension, preferably at two opposing points where teeth are formed at the neck of the closure device, these points are deformed by the elasticity of the material. In this case, the teeth contained therein are pushed inwardly from the tine teeth. This allows rotation in the opposite direction and opening of the closure. Because the tooth material is resilient, it is possible to repeat this process without sacrificing the tightness and safety of the closure of the solid material of the collar.

When the lower part of the neck is made in the form of a moss, it has high elasticity. Thus, even when the container closure is mechanically loaded, for example by impact, a high resistance to failure is guaranteed. This allows the transport safety requirements to be met. Preferably, the top of the neck is not under the thread

* flexible to avoid screwdriving. jams a clamping, vĺčka pri A preferred embodiment neck in shape moss is behind the wall complete emptying of the container . if with moss spreads to

in the extended state, spilling of liquid from the container is easy.

Preferably, the bellows is formed such that when it is in the retracted state, the screwed cap protrudes only slightly over the container. Therefore, it is not possible to print on the bottom of the locking devices. Thus, the cap cannot be unlocked and opening of the container is not possible.

The container closing device according to the invention is particularly suitable for closing containers with dangerous liquids. Appropriate material selection can ensure resistance to chemicals. By means of the container closing device according to the invention it is possible to meet existing standards and requirements for transport and safety of use. The closure according to the invention prevents jamming of the cap on the thread.

BRIEF DESCRIPTION OF THE DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS The invention will now be described in more detail with reference to the accompanying drawings, in which: FIG. 1 shows a front view of a device for closing a container according to the invention, partly in section, FIG. 2 in section with the bellows in the folded state, FIG. 3 in front view of the bellows in the expanded state, FIG. 4 is a plan view of a neck with elastic teeth with a steep side; FIG. 5 shows a throat with two very undercut teeth or FIG. 6 is a cross-sectional view of the cuff closure, FIG. 7 is a cross-sectional plan view of the flaps, the embodiment corresponding to FIG. 2, but with a central rib, FIG. 8 shows a section along the D-D neck corresponding to FIG. 2, but the inner wall of the neck, and FIG.

FIG. 7; 9 shows an embodiment of a circumferential rib for the section D-D of the neck of FIG. 9th

DETAILED DESCRIPTION OF THE INVENTION

In FIG. 1 shows a neck 1 which is provided with a screw thread 2 at its upper end 2. A screw 3 is screwed onto this screw thread 2. Below the screw thread 2, outwardly directed toothing interlocking devices 4 are provided at opposite points on the neck 1. of laterally angled flexible compressible teeth which can return to their original position. These teeth can engage the toothed rim of the cap 3 with the teeth 5 facing inwards. The part of the neck 1 below the screw thread 2 can be made of a rigid or elastic material. According to a preferred embodiment, this part is less flexible in the upper region 6 and flexible in the lower region 7. In the upper part of the upper region 6 there is a tooth extension. The lower part of the flexible lower region 7 is in the form of a bellows and the neck 1 is provided with a fastening device 8, which in this embodiment is designed as a collar. For example, the sleeve may be inserted into a circular opening of the container and secured therein. In FIG. 1 is the upper end of the throat .1. provided with the original tear-off closure 9, which is removed at first use.

Fig. 2 corresponds to FIG. 1, but the bellows forming the lower region 7 is in the folded state. It is also shown here that the collar representing the fastening device 8 is provided with recesses in which the edges of the container are inserted.

In FIG. 3 shows an example of a closure according to the invention, wherein the mossy lower region 7 is in an expanded state. The locking device 4 is here in the form of two protrusions formed at two opposite locations (only one of these protrusions is shown in FIG. 3). Each projection is provided with two teeth facing outwards. These teeth engage the teeth 5 of the cap 3 (screwdriver), which inwards. These teeth 5 are arranged in a row and separated from each other. In terms of rotation 11, the cap 3, which is a screwdriver, can be easily screwed onto the neck 7. On the unscrewing, the projections under the cap 3 must be unlocked by pressing the resiliently formed teeth 5 and the resiliently formed locking devices 4 in the form of projections. The inward edge is divided into sections.

In FIG. 4 shows a plan view of a neck 1 with elastic teeth with a steep side.

In FIG. 5 shows a plan view of a neck 1 with two strongly undercut teeth (flaps) on opposite sides. The release points D are therefore located directly on the tooth.

In FIG. 6 shows a cross-section through a closure with a secure fastening of the lower region 7 of the neck 7 by means of a fastening device 8 in the form of a collar at the rim 10 of the container.

Fig. 7 corresponds to FIG. 2, however, an embodiment according to the invention is shown in which a central rib 12 is arranged between the pressure points D, which stabilizes the neck 7 against compression which could cause undesired jumps or unlocking of the locking device 4.

In FIG. 8 shows a section D-D through the neck 1 of FIG. 7 with stabilizing middle rib 12.

Fig. 9 also corresponds to FIG. 2 showing an embodiment of the invention with a throat reinforcement 7 in the form of a circumferential rib 13 on the inner wall of the throat 1. Also, this reinforcing circumferential rib 13 stabilizes the throat 1 against compression which could cause unintentional jump or unlocking of the locking device 4.

In FIG. 10 is a cross-sectional view taken along line D-D of FIG. 9. Here again, a reinforcing circumferential rib 13 is shown on the inner wall of the neck 7.

Claims (14)

1. Apparatus for closing a receptacle with a neck (1) attached to the receptacle, which is fitted with an external screw thread at its upper end ( 2) and cap ( 3) screwable onto this screw thread (2), wherein the neck (1) and the cap (3) are provided with one or more interlocking devices (4, 5) which engage one another, characterized by locking devices (4, 5) for the neck (1) and the wolf (3) are each formed under the screw thread (2) in the direction of the container, the locking device (4, 5) being rigid on the cap (3) and elastically reversibly deformable on the neck (1) , and the locking device (4) on the neck (1) facing the container is of such a length that, when the cover (3) is fitted, it protrudes beyond the cover (3), thereby creating press points (D) enabling unlocking of the locking devices (4). 5). Second equipment by Claim 1 v y z n a č u j ú c e s a by that throat (D is a stable created so, that unlocking blocking equipment (4) is press neck (1) prevented. Third equipment by Claim 2 v y z n a č u j ú c e s a in that the throat (1) is stabilized by one or more intermediate ribs (12) provided between the thrust points (D). Device according to claim 2, characterized in that the neck (1) is stabilized by a circumferential rib (13) provided on the inner wall of the neck (1). Device according to one of the preceding claims, characterized in that the cap and neck locking devices consist of a toothing with one or more teeth or flaps, the teeth on the neck being on t One surface is angled so that, when mounted and rotated, the tine teeth can slide unhindered on these inclined surfaces. Device according to claim 5, characterized in that the neck teeth are designed so that their side facing the opening direction of the cam is perpendicular or steep to the neck or undercut to the neck. Device according to one of the preceding claims, characterized in that the neck is at least partly made of a resiliently reversible material, at least in part under the screw thread. Device according to one of Claims 1 to 7, characterized in that the neck can be folded inwardly foldable in its lower region (7) and extensible again. Device according to one of the preceding claims, characterized in that the locking devices (4) of the neck (1) are formed on two opposite sides of the neck (1), each side having at least one tooth. Device according to one of the preceding claims, characterized in that the toothing of the screw cap (3) is designed as a toothed rim with laterally inwardly directed teeth under the screw thread. Device according to claim 10, characterized in that the teeth on the cap are separated from each other by a notch 1. Device according to one of the preceding claims, characterized in that the neck (1) is provided at its lower end with a fastening device (8) for secure fastening to the opening of the container. Device according to one of Claims 1 to 12, characterized in that it is provided with an original tear-off closure (9). Liquid container, characterized in that it is provided at the discharge opening with a shut-off device according to one of claims 1 to 13. List of references neck 1 screw thread 2 cap 3 locking device 4 tooth 5 upper area 6 lower area 7 fastening device 8 tear-off cap 9 rim 10 container sense 11 rotation middle rib 12 circumferential rib 13 t thrust point D Pv Company. · U,