FI84801B - Rapid-action locking device for a lid-provided container - Google Patents

Abstract

A snap-lock arrangement for a container lid of the type which can be locked on to a container, via a bi-stable release flange deployed on the lid or container, which is designed to work in tandem with a locking ridge on the container and the lid respectively. The bi-stable release flange is deployed with largely vertical yield lines, whereby at least two are mutually arranged in such a way that the part of the release flange situated between them forms a snap-lock unit.<IMAGE>

Description

1 84801

Quick release device for tank with lid

The invention relates to a quick-locking device for a lid container, said lid being lockable to the container 5 by a flange formed in the lid or container and obtainable in an open and respectively locked position and intended to operate with a locking edge in the container or lid, the release flange thus being two-position -10 vertical vertical weakening lines.

Containers of this type are known, for example, from FR patent application 2,377,333, which relates to the principle of locking devices comprising two-position components. However, such a simple closure device is not sufficient for packages exceeding a certain size when the package has to be used for the storage of both high and low viscosity substances. These may be, for example, foods such as butter, margarine, jam, or paint, for example, or they may be substances used in the pharmaceutical industry.

DK patent application 145 194 describes a container and lid structure based on a two-position locking flange. However, this is such. . a structure that has been found to be insecure in the transport, storage and stacking of containers. In addition, the package does not have the sealing device that more and more buyers are demanding.

DK Patent Application 3870/83 relates to a package comprising a seal designed to operate when the vertical wall contractions are broken; however, it has been found that such a seal form; T: has poor monitoring performance because the wall contractions are very uninformative. In the pharmaceutical industry, however, the information value of the sealing space is a very essential factor, and other areas of application are seeking to place increasingly stringent demands on packaging opening and closing mechanisms.

2,84801

It is an object of the invention to provide a packaging structure which makes the package airtight when unloaded and also when subjected to a certain impact or pressure, and which, when used, is also such that the lid can be temporarily protected from impacts on the environment and the contents of the package. .

This object has been achieved by constructing a quick-locking device 10 as set forth in the characterizing part of claim 1. In addition to the airtight packaging structure, this container structure has the advantage that it has two weakening lines which act as a sealing device, so that the flange part between them is fixedly connected to the fixed flange part, so that the relatively rigid edge surface thus formed acts as a quick locking device. When the radial wall thickness is increased in said flange part, the stiffness of the flange increases, whereby the pi-calcification effect is improved. This quick-release lock is used to temporarily close the container, keeping the container tight when it is struck and possibly overturned.

In addition, when the quick-locking device comprises radial wall reinforcements and sealing devices, the visual shape of the container as a so-called anti-pinching structure is improved.

In a preferred construction, the lid has two sealing devices, forming two pairs of lines of weakness, each of which extends over a relatively small part of the circumference of the lid and is placed perpendicularly opposite each other. This again means that each circumferential part of the cover placed between the quick-release devices extends in a circular arc of less than 180 °, and this rupture of the two-position circumferential part causes a reduction of the cover ring tension, which facilitates easy movement of the locking flange up and down; furthermore, the opening of the container 3 84801 according to the invention does not cause a partial spillage of the contents of the package due to overpressure, which is very common when opening already known containers. This structure with two sealing devices is furthermore ideal in the sense that two such devices (and thus two quick-release locks) are sufficient to prevent the lid from tampering, so when trying to gain unauthorized access to the contents of the container at a locking flange less than 180 ° .

Furthermore, the idea of the quick-locking device according to the invention is that the two-position release flange can optionally be made in either the container or the lid, so that the lid or the container has a radially outwardly locking edge adhering to said flange, respectively.

As an additional feature that promotes sealing / sealing, the adhesive surfaces of the container and lid can be made conical, with the conical shape of the lid surfaces being slightly smaller than the conical shape of the container surfaces. This improves the sealing with said quick-closing device according to the invention at said temporary closure of the container when, in a certain situation of use, the materials in the container are repeatedly dispensed. In this construction, the cover is tightened somewhat before the quick-lock function occurs, which enhances the quick-lock effect when the two-position locking flanges are folded up.

In a construction in which a two-position release flange is provided for the container 30, an opposite relationship must be provided between the conical shapes of the container and lid surfaces.

The invention will now be described in more detail with reference to the following description of a preferred structure, with reference to the drawing, in which Fig. 1 is an axial section showing a quick release device of a container / lid structure with the lid release flange folded up, Fig. 2 is an axial section showing the container / dual structure with the lid release flange locked, Fig. 3 is a plan view of the container lid locked, and Fig. 4 is a partial perspective view of the container / lid structure with the lid release flange turned up.

It can be seen from Figure 1 that the lid 2 has a substantially flat lid surface 16 associated with a sealing surface 9, which is hollow upwards in cross section and is intended for the container edge surfaces 10, said surfaces 15 and 10 thus forming the main sealing device of the structure. The cover surface is further connected to a fixed cover flange 6 and also has a sealing edge 8 in its straight, axial extension, said sealing edge 8 and cover flange 6 defining an annular, upwardly hollow groove 17. This groove is intended in part for a so-called guide projection 7, extending upwards from a radially outwardly extending locking edge 5 connected to the wall of the container. to this 1 somewhat below the edge 10 of the container.

It can be seen from Figure 1 that the upper gripping edge 10 of the container 1 is intended to co-operate with the inner surfaces 9 of the lid 2 for a relatively large length. This is because when the lid is put in place, it slides down over the edge of the container, whereby this edge 30 is automatically cleaned of all the matter - which enters the container, so that with this type of 'j'; the deck thus has a certain mechanical self-cleaning effect via a quick-release lock.

It is further shown how the fixed cover flange 6 35 is connected by a sponge lock in the radial direction in the locking position to an extension, thus forming a 5 84801 so-called two-position release flange 3, which is shown in its inverted unlocked position.

Wall reinforcements 11 in the form of radial reinforcements are formed on the lid of the container, preferably in two mutually perpendicular opposite positions, so that the lid edge forms in each such part of the arc a so-called quick-release device (marked as unit 12 and comprising elements 3, 4, 6). and 11 and 14 and 15) the length of these arcuate parts 10 is always delimited by two weakened lines 13, which are best seen in Figure 3. When the container is to be closed, the lid is placed with its two release flanges 3 turned upwards on the container so that the lid , if the sliding surface 14 of the "fixed" release flange 3 is on the locking edge 5. The axial pressure shock causes the cover to move further downwards, so that the sliding surface 14 has to move radially outwards until it has passed the pole projection 15 of the release flange 3, followed by a quick-locking function (see also Fig. 4). Said wall reinforcements 11 improve the radial stiffness of the quick-release devices, and this stiffness - is specifically intended to promote the effective operation of the cover. . temporary closing and sealing when its two-position release flange 3 is turned upwards.

In order to further enhance the quick locking function, the cooperating surfaces of the groove 17 and the guide projection 7 can be provided with different conical shapes, the conical shape of the guide projection being then the largest. This causes the lid 30 to bend somewhat before it locks, and this bending is further associated with a sealing function. An additional effect of axial stiffness is that the deck; is, when taken out, a "self-releasing effect" has been made, so that the lid is easy to remove despite the relatively large mi-35-supplied quick-release device.

- The above-mentioned conical shape between the guide projection 7 and the groove 17 can, of course, also be made on the gripping surfaces 9 and 10 of the container and the lid.

Claims (6)

6 84801 A quick locking device for a container with a lid (2), said lid being lockable to the container by a flange 5 (6) formed in the lid or container and which can be moved to an open and respectively locked position and intended to work with a locking edge (5) in the container or lid , the release flange (3), which is thus in two positions, is provided with substantially vertical lines of weakness (13), characterized in that those parts of the release flange (3) which are arranged between at least two lines of weakness (13) are provided with wall reinforcements on the outside. (11) extending axially over a two-position release flange 15 (3) and preferably over a fixed cover flange (6) arranged as an extension of said release flange. A quick-release device according to claim 1, characterized in that two pairs of lines of weakness (13) are provided, said pairs having a relatively small distance from each other being perpendicular to each other. Quick-release device according to Claims 1 to 2, characterized in that the two-position release flange (3) is arranged as an extension of the fixed lid flange (6) of the lid (2) and is intended to engage the container on the radially outwardly locking edge (5). Quick-release device according to Claims 1 to 3, characterized in that the two-position release flange is made in the container and is intended to engage the radially outward-locking locking edge of the lid. A quick-release device according to claim 3, characterized in that the container and the lid (2) 35 have approximately vertically oriented gripping surfaces 7 84801 (9, 10) which are conical, and that the lid surfaces (9) have a slightly smaller conical shape than the container gripping surfaces ( 10). A quick-release device according to claim 4, characterized in that the gripping surfaces of the container have a slightly smaller conical shape than the gripping surfaces of the lid. 8 84801