SI9400337A - Container and arrangement for closing it - 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

Herberts Gesellschaft mit beschrankter Haftung

Preparation for container closure and container

The invention relates to a device for sealing containers or containers. containers, such as. doses or canisters that can be labeled child-safe. It also refers to a container comprising a closure device at the discharge opening.

Children's safe closures for different containers are known. In this case, for example, closures for plastic containers that store ordinary liquids or solid products in the household, e.g. cleaners. It is necessary to open these closures in an easy way, but because of higher mechanical requirements, children cannot open them. This is the case, for example. is achieved by breaking the closure in certain pre-prepared locations. After opening for the first time, normal closure of the containers is only possible. After that, child safety is no longer a given.

Child-resistant fasteners are also designed to attach a solid plastic cover to the screw thread of the container to be closed. This may consist, for example. from two gripping parts to each other, the inner part having a locking thread and can be connected to the outer part via a groove. The outer cover part grips into the groove only when it is pressed on the inner cover part. Only in this case can the shutter be opened by rotation.

Further known closures are those in which the container to be closed carries a thread on the opening. Two cutouts are designed under this thread. A soft, flexible cover is screwed onto this thread. This cover contains two downward projections that can fit into the recesses. Opening of the closure cover is only possible when, by the lateral pressure of certain places of the soft cover, it is so transformed that it forms an oval shape. This removes the downward projection of the lid from the cutouts on the thread, and the lid can be opened by rotating it.

There is also a requirement for the closing of containers for environmentally hazardous liquids that a complete emptying of the transport container must be given. The fastening of the closure to the conveyor shall be such that no areas of the container which do not allow liquid to escape are formed. In addition, it must be possible to easily discharge from the container.

The closures must protect leakage substances in the container to be closed. They usually have to resist only those loads on the container or container. closure that is common in the household or in transportation. However, they must also be permanently sealed at the gate / metal container passage.

All of the child-resistant closures mentioned above have the disadvantage that they do not meet the requirements for safe transport packaging. Particularly because of the required material selection, e.g. hard brittle cover materials, or especially a soft closure cover, no secure closure is given. In addition, the various snap lock options are still oversensitive or too demanding.

The German application of utility specimen G 92 06 318.7 describes a device for closing a container consisting of a tubular neck with a lid that can be screwed on to it, wherein the neck and lid comprise releasable teeth designed to adhere to each other. In order for the toothed rack to be released, the tubular neck must comprise a flexible area.

It is an object of the invention to provide a device for sealing a container, in particular a container containing a liquid, which prevents unwanted leakage of the container during transportation during improper handling, permitting and complete emptying of the container, while being designed in the form of a child-resistant closure, which is also reusable still meets these requirements and enables a simplified, largely independent design from the material of the entire preparation.

This task is accomplished by a device for closing the container with a tubular neck mounted or fastened on the container, which is provided with a screw thread at its upper end and comprises a cover that can be screwed onto said thread, wherein the neck and lid comprise a releasably second thread. another gripping one or more radially designed shut-off devices. This device is characterized by the fact that the closure devices on the neck and the lid must be designed each time under a screw thread in the direction towards the container, the closure device on the lid being rigidly and on the neck elastically reversible deformable and the closing devices on the neck in the direction towards the container comprise such a length dimension that, when the cover is fitted, they project beyond it, thereby providing pressure points which allow the locking devices to pop out.

The tubular door extends below the screw thread in the direction of the container of one or more locking elements. These locking elements may be formed as deformable teeth or in the form of obliquely spaced deformable lips. It can be, for example. for a tooth with at least one tooth, preferably two teeth opposite at least two teeth are formed on two opposite sides of the neck. In the given case, there may be two or more teeth together, and they must be moved simultaneously from their position. The teeth or lips comprise an oblique flank on one side, the oblique flank being arranged such that the closing device (eg, toothed) of the lid slides over this slant when closing the lid by screwing. The other side of the teeth or lips may be designed either perpendicularly or steeply to the neck, or may comprise undercutting, i.e. between the wall of the tube and the tooth or. lip is located cavity. The locking device according to the invention is so flexible that it can be transformed by pressure, e.g. translate into a more flat form. The door locking device thus protrudes from the door locking device. This shortens e.g. the displacement of the outer surface of the tooth or lip from the neck so that the toothed lid is no longer blocked at opening (unwinding).

According to a preferred embodiment of the invention, the neck of the device according to the invention is designed in such a way that it prevents the locking devices from escaping by pushing the neck. This stabilization may be followed by one or more center bridges extending between the pressure points, in particular opposite the pressure points. A further option for stabilizing the neck exists e.g. in a bridge that runs around the inner wall of the neck to stabilize against unwanted neck compression. This prevents the locking device from being opened due to unwanted pressure on the neck. It is then possible to jump out of the locking devices only if pressure is exerted directly on the pressure points, i.e. to elastically reversible deformable barrier devices. The center bridge is advantageously designed to extend below the lower neck area of the reversibly deformable locking device. It starts and ends preferably inside the neck, directly at the pressure points.

The cover (or closure part) comprises a thread inside, on which the lower edge is designed as a locking device, e.g. Toothed wreath whose teeth are shaped so that they can fit into the teeth of the neck when twisting the lid. In a given case, the toothed rim may also be impassable, i.e. is continuous, and consists of one or more teeth.

The closure closes by twisting the threads into each other, and the closing devices (eg teeth or lips) of the lid can easily slide over the oblique flanks of the elastic closing devices (eg teeth or lips) of the tubular neck and no longer interfere with the closing process. Teeth or. The tubular neck lips are designed to extend so far down in their length that they protrude far below the lid after inserting and closing the lid, so that pressure can be applied to them. To open, the lower part of the locking elements of the tubular neck can be compressed together. In doing so, the elastic, flexible locking devices are pressed inwards also in the upper part with the lid covered by the toothed rim of the lid.

This makes it possible to loosen the thread by turning it. After the pressure is completed, the elastic teeth are re-oriented outward to their original shape. This allows multiple openings and closures to be performed without damaging the closure device.

The neck as well as the lower part of the neck of the closing device consists of any material. It can be designed rigidly or elastically because as such it does not have to contribute to the closing and opening of the closing device. According to a preferred embodiment, it can be flushable into one another and retractable. When designed as a bellows, e.g. when transported, it exists in folded form and can be extended to a longer length by pulling it out. It is advantageous if the neck or lower part is designed from an elastic material so that it can absorb some of the transformation energy during impact mechanical loading. The undesirable jumping out of the locking devices can be prevented by the advantageous embodiment of neck stabilization according to the invention. This stabilization follows e.g. in the form between the pressure points transversely through the neck of the running center bridge or around the running bridge on the inside of the neck, at least at the height of the pressure points. In the direction of the upper neck opening, the material is preferably less flexible; a screw thread is designed. The material should only allow for small modifications to ensure that the container is always closed. Even when squeezing the locking device, the neck material should be lowered a little so that the cover can be rotated in a thread. Even under the elastically fuzzy design, the neck should be made of less flexible or rigid material and designed so that the lower neck opening is suitable for connection or. securing it to the container so that it supports you and closes the container. Preferably, this part of the neck is also elastic to withstand damage upon impact without damage.

The attachment is e.g. it can be reached with a cuff pin that grips the opening of the container. The preferred embodiment is designed to grab from above via (e.g.

folded) edge of container. In this case, it is advantageous if the attachment grips around the container edge to achieve a tight closure for the solvents. The connection may optionally be secured with a retaining ring. The cuff preferably does not extend at all through a passing ring facing the inside of the container. The formulation thus formed is particularly suitable for emptying the container without remaining.

At the lower end of the thread on the neck of the device, outwardly directed locking devices are preferably arranged on two opposite sides of the neck, e.g. dentition. Locking devices, e.g. teeth, may be based directly on the neck or stabilizing projections, these projections comprising up to three, preferably two or one tooth or lip. These teeth or lips are pointing outwards. They are designed in such a way that one of the tooth flanks is inclined, the other preferably cuts the tooth. The oblique side of the teeth is in each case uniformly arranged in the direction of rotation, with the direction of rotation referring to the closure of the lid.

It may be that the threaded lower part of the neck comprises a further, once usable closure cap. This is preferably arranged in the upper third of the thread height. It can be designed as a transition layer with the neck. For example, it is thinner at the edges, so that the threaded course can be followed properly by tearing. Preferably, the closure is designed with a recess. It is also possible to subsequently apply a closure foil to the upper edge of the thread. In order to facilitate removal, it is preferable to provide this part, which additionally closes the neck, with a gripping piece that permits easier tearing. This additional preparation can also be used as a control for the original closed condition of the container.

The cover that can be screwed onto the neck of the device according to the invention comprises a thread inside. This thread is adapted to the threaded part of the neck. When screwed onto each other, a tight closure is obtained. This cover further comprises a locking device on the underside of the thread, e.g. toothed wreath. The latter is directed inwardly to grip the teeth of the lower closure inwards. The teeth have a steep flank and preferably a further oblique flank. If necessary, these teeth may also include undercutting. These are arranged in the opposite direction according to the direction of rotation at closing. The teeth may be permanently attached to the wall, but it is preferable that the teeth lie on the lower edge of the lid and are separated from each other by vertical notches.

The closure lid according to the invention consists of rigid materials. The pressure required to accommodate rotational motion should not be transformed. Furthermore, they comprise such elasticity that they do not collapse or undergo significant deformation with the possible impact of mechanical stress. The neck is preferably formed in a threaded area of such a material that mechanical transformation does not lead to the tightness of the screw closure. If so, the existing bellows area should be materially flexible. This can be done either by selecting the material used, or it may be possible to affect flexibility and hardness with different wall thicknesses.

When closed, the screw threaded portions of the neck and the cover are caught in each other. This causes the container to be closed securely. With the helical movement, the slanted tooth flanks of the lid and neck glide easily over each other. No use of increased force is required. The opening of the closure is prevented by rotating the rectangular and undercut tooth flanks when rotating in the direction of rotation. Inadvertent opening by rotation is not possible. If the lower tooth extensions are pressed, preferably on the two opposite teeth on which the teeth of the closure device are formed on the neck, the teeth are reshaped due to the elasticity of the material. In doing so, the teeth located there are pressed inwards from the teeth of the lid. This can open the closure by rotating in the opposite direction. Because the tooth material is resiliently shaped, this step is repeatable without suffering the tightness and closure of the rigid cover material.

When the lower neck is shaped like a bellows, high elasticity is given. Thus, even with mechanical loading, the container closures, e.g. with collision or impact, high safety against bursting. This allows transport safety requirements to be met. The upper part of the threaded neck is preferably not flexible to prevent the lid from being stuck and stuck.

With this advantageous neck shape, the bellows are emptied well. If the bellows are pulled out into the extended position, it may be possible to empty the fluid from the vessels.

The bellows are preferably designed such that when the bellows are pressed in, the screwed lid is only slightly raised over the lid of the container. Thus, the bottom of the closing devices cannot be pressed. The lid cannot be opened, which makes it impossible to open the container.

The device according to the invention for sealing containers is particularly suitable for sealing containers for hazardous liquids. The choice of material makes it possible to provide resistance to chemicals.

With this container closure, existing standards and requirements for transport and user safety can be met. This closure prevents the cover from locking on the thread.

In the accompanying drawings, preferred embodiments of the closure device of the invention are explained by way of examples.

In FIG. 1 shows a tubular door 1 fitted at its upper end with a screw thread 2. This is provided with a screw cap 3. Below the screw thread, the door on opposite sides of the locking device 4 is formed in the form of notches, consisting of a side employing resilient, compressible and recoverable teeth. The latter can be grasped into the toothed crown of the screw cap with the inwardly oriented teeth 5. Under the screw thread, the neck portion can be formed of a uniformly rigid or flexible material. According to a preferred embodiment, it is less flexible in its upper region 6 and its elastic flexible region 7 below. In the upper part of area 6 there is a tooth extension. The lower part of the elastic region is designed as a bellows 7, and the neck 1 comprises a fastening device 8 which is represented in the present embodiment as a cuff. This can be given, for example. Insert into the circular opening of the container and secure it securely. In FIG. 1, the upper part of the neck is provided with an open lock 9 for the control of the originality of the closure, which can be used to eliminate the two first uses.

FIG. 2 corresponds to FIG. 1, wherein the bellows 7 are presented in folded form. Also shown is how the cuff 8 is provided with cutouts that can grab into the edge of the container.

In FIG. 3 is an example of a closure according to the invention, wherein the bellows 7 is shown in cured form. The denture 4 of the neck is designed in the form on two opposite projections of the projected projections 4 (in Fig. Only one of these projections is shown). Each projection has two teeth pointing outwards. These fit into the toothed 5 lids (screw caps) with the teeth inverted. A set of teeth comprises individually separated teeth. In the direction of rotation 11, the cover can be easily screwed onto the neck like a screw cap. To unscrew, the pressure of the elastically designed teeth must open inwardly, and optionally, the elastically designed projection 4 beneath the lid. The inside facing edge is divided into sections.

In FIG. 4 shows a view of the neck with elastic teeth with steep hips.

In FIG. 5 is a view of a neck with two strongly undercut teeth (lips) on opposite sides. The pressure release points (shown in D) therefore rest directly on the tooth.

In FIG. 6 is a cross-sectional view through a closure with secure fastening of the closure neck 7 via a cuff 8 at the edge of the container 10.

FIG. 7 corresponds to FIG. 2, however, showing an embodiment of the invention in which a center bridge 12 extends between the pressing points (D), which stabilizes the neck against the impression, which could cause an unwanted protrusion of the locking device.

In FIG. 8 is a view of the neck of FIG. 7 along the cross-section DD with the center bridge 12 for stabilization.

FIG. 9 corresponds to FIG. 2, an embodiment of the invention is illustrated by strengthening the neck in the form of a bridge 13 extending about the inner wall of the neck. Also, this circulating reinforcing bridge 13 stabilizes the neck against incision, which could lead to the inadvertent jumping out of the locking device.

In FIG. 10 is a view of the neck of FIG. 9 along the line DD. It is also shown here on the inner wall of the neck around a running reinforcement bridge 13.

Herberts Gesellschaft mit beschrankter Haftung

Claims (14)

Patent claims CLAIMS 1. A device for closing a container with a tubular neck (1) fastened or secured to it, provided with a screw thread (2) at its upper end and comprising a cap (3) that can be screwed onto said thread (2), wherein the neck (1) and the lid (3) comprise one or more releasably locking devices (4, 5), characterized in that the locking devices (4, 5) are located on the neck (1) and the lid (3) ) must be designed each time under a screw thread in the direction towards the container, the closure devices (4, 5) being rigidly designed on the lid (3) and the neck (1) resiliently deformable and the closing devices (4) on the neck (1) in the direction of the container, they comprise such a length dimension that, when the lid (3) is mounted, they project beyond it, thereby giving pressure points (D) which allow the locking devices (4, 5) to pop out. Apparatus according to claim 1, characterized in that the neck (1) is designed in such a way that it prevents the locking devices (4) from popping out by pushing the neck (1). Device according to claim 2, characterized in that the neck (1) is stabilized by one or more center bridges (12) extending between the pressure points (D). Device according to claim 2, characterized in that the neck (1) is stabilized by a bridge (13) extending around the inner wall of the neck (1). Apparatus according to one of the preceding claims, characterized in that the closure devices on the lid and tubular neck consist of teeth with one or more teeth or lips, at least one of the teeth on the neck in one surface being so arranged that when inserted and the rotation of the toothed rack can slip easily over these oblique surfaces. Apparatus according to Claim 5, characterized in that the neck teeth are designed such that their side facing the opening rotational direction of the cover is perpendicular or steep to the neck or comprises undercutting to the neck. Device according to one of the preceding claims, characterized in that the tubular neck is formed at least in part by a threaded thread from elastically reversible material. Device according to one of Claims 1 to 7, characterized in that the tubular door in its lower part (7) is designed to be softly folded into each other and retractable. Device according to one of the preceding claims, characterized in that the locking device (4) of the neck (1) is formed on two opposite sides of the neck (1), each side comprising at least one tooth. Device according to one of the preceding claims, characterized in that the toothed lid (3) is designed as a toothed crown with laterally oriented teeth under a screw thread. Device according to claim 10, characterized in that the teeth and the lid are separated by cuts. Device according to one of the preceding claims, characterized in that the door (1) at its lower end comprises devices (8) for securely attaching it to the opening of the container. Device according to one of Claims 1 to 12, characterized in that a tear-off closure (9) is provided for controlling the originality of the closure. Fluid receiving container, characterized in that it comprises a closure device according to one of claims 1 to 13 at the discharge opening.