HUT67628A - Container with snap-on lid - Google Patents

Abstract

A container (1) with a snap-on lid with an at least one-part body (2) and a lid (4) which, together with a body component at the closure end of the body, forms a sealed closure, in which there is a lever gap between the body and lid for the engagement of a lever via which the lid can be levered up, whereby the lid has a circumferential sprung engagement lip (8) which engages from inside under tension in a sealing groove in the body component matching the shape of the engagement lip (in accordance with patent application P 40 29 146.4), whereby the engagement lip of the lid engages elastically in an inwardly rolled upper circumferential edge in the body component instead of in separately made sealing groove.

Description

International Publication Number: WO 92/09495

The present invention relates to a pressure box with at least θ9ó, a one-piece body and a cover body, which is the body.

- forming a sealing closure with two body members at the end end of the body, wherein a gap is left between the body and the cover body to extend a lifting means for raising the cover body and wherein the cover body has a circumferential, spring-engaging edge to the body. and where the cover body may be inserted into the torso body, wherein the engagement edge extends into a closure rib corresponding to the shape of the engagement member of the body member. (According to German patent application P 40 29 146.4).

Known compression valves, boxes or containers advantageously allow the cover body to spring-lock into the closure rib of the body member so that the cover body is biased in the plane of the closure while the engagement edge is pressed into the closure. An important advantage of such a closure is that the pressure lid can be opened without the need for a special tool without breaking, and by simply inserting a lifting tool into the lifting slot, it is possible to achieve the engagement edge inward while the body member is pressed outwards, whereby the coupling edge in the vicinity of the lifting tool is removed from its engagement with the locking rib. By combining the closure with a strong spring tension, very good sealing can be achieved. Another significant benefit is the

- The 3-lid box or box can be re-sealed for multiple use, optionally in the form of a returnable packaging.

It is another object of the present invention to further develop a retractable lid with a lid with a lid, in such a way that, while retaining all of the components listed, simplify the manufacture of the main body and optimize the filling and sealing of the valve.

The object of the present invention is solved by providing the connecting body of the lid body, instead of engaging it with a separately manufactured closure rib, extending below the inwardly curved upper peripheral rim of the body member.

These features make it possible to fit all the boxes and / or boxes. the upper peripheral rim flange (if rolled inwards) under normal conditions of the container body shall be used directly as a closure for the novel pressure-bearing box, which is provided in P 40 29 146.4; German patent application without the need for a separate locking rib. In addition, in such a construction, the volume of the body of the valve body can be optimally utilized for filling, since the attachment edge of the lid body locks directly on the upper peripheral edge of the body. Finally, the sealing process of the can, box or container can be further improved, as further described below.

In a particular embodiment of the invention, a circumferentially extruded core rib is provided at a distance substantially equal to the outer diameter of the joint edge at the peripheral edge flange. This additional body rib allows the cover body to be raised on the side opposite to the actuation point of the lifting tool when the cover is opened, while also preventing the cover from being accidentally pressed into the body when closing.

In this case, in a variant, the outer diameter of the circumferential rim is narrowed or reduced by a distance such that the outer diameter of the joint edge is reduced. reduced, forming an additional lower step extending into it, which substantially corresponds to the diameter of the tine body so that the inside of the body is formed. This embodiment works in the same way as the preceding body rib and is advantageous when a flatter container, such as a saucer, is used as the body.

It is also advantageous to provide a sealing compound during the peripheral edge edging in the region in which the engagement edge is spring-locked below this edge edging. The sealing compound allows the pressure chamber to be hermetically sealed, whereby the behavior of the sealed chamber during sterilization is determined. ··

- 5 benefits which are already described in the aforementioned German Basic Patent.

In addition, it is particularly advantageous for the sealant to contain bactericides, for example by adding ascorbic acid, to prevent the bacteria from penetrating into the sealant.

In a further embodiment of the invention the cover body is made of plastic. Contrary to the case where the lid body is made of fine sheet metal, the bonding edge of the plastics would consist of a bulk material instead of being wound and the material thickness could be higher.

Advantageously, when forming the cover body from plastic, there are built-in overpressure relief devices prevailing in the valve, which may be, for example, integrated, united semi-permeable pressure relief valves.

In yet another embodiment of the invention, the peripheral peripheral edging is formed such that its inner peripheral surface is sharpened, i.e. inclined and thus reduced in cross-section to its upper end. This is to make it easier to press the cover body during the first filling or to re-seal the body, since by sliding the engagement edge on said oblique portion of the peripheral periphery, the •

- 6 presses outward without effort.

The invention will now be described in more detail with reference to exemplary embodiments thereof, with reference to the accompanying drawings, in which:

Fig. 1 is a cross-sectional view of a sealing environment of a first embodiment of a pressure lid valve according to the invention in a closed position;

Fig. 2 shows the closing environment of a second embodiment of a press-cover gasket according to the invention in a closed position, in cross section:

Figure 3 is a sectional view of the closure environment of a first embodiment of a press-cover box according to the invention during the sealing process;

- Figure 4 is similar to that shown in Figure 3 but at a later stage of the closure process:

Figure 5 is a schematic cross-sectional view of the lid body of a pressure-gated valve according to the invention with a built-in overpressure valve in its sealing position:

Figure 6 is a view similar to Figure 5, but showing the overpressure valve as the expansion gas exits the inside of the can.

• · · «» · · · · · · · · · · · · · · · · · · · · · · ·

The valve cover 1 comprises a cylindrical body 2, the upper end of which forms the body 6. In this portion of the press-cover box 1 is closed by a cover body 4, the engagement edge 8 of which extends springwise between the inwardly curved upper peripheral rim 10 of the body member 6 and the inwardly pressed body member 18. Here, the distance between the fuselage 18 and the lower end of the circumferential rim 10 substantially corresponds to the outer diameter of the engagement edge 8 so that it extends just below the peripheral rim 10.

In one embodiment, as shown in Fig. 2, the connecting edge 8 of the cover body 4 'is supported by a further step 20, which is formed by locking the diameter of the body 2 at a distance which also corresponds substantially to the outer diameter of the connecting edge 8. a. This embodiment is particularly advantageous when a bottle shape such as relatively flat cups has already been provided.

In both cases, the hinged edge 8 and the peripheral edging 10, as well as the fuselage 18 and / or the lugs, are used to seal the lid seal. in the intermediate space between the steps 20, a sealing compound 22 is applied, wherein the sealing compound 4 and 4 are applied. The lid body 4 'and the sealing body 2 are preferably bonded to the still liquid sealant 22. The bactericidal formulation of the sealing compound 22, for example with ascorbic acid, can effectively prevent the penetration of bacteria into the seal.

• *

- 8 Regardless of whether or not 22 sealants are added, the 4 or 4 sealing compounds must be used. The cover body 4 'can be reused in each case to re-seal the compression lid. In this way, it is also possible to use the pressure lid valve according to the invention (as well as the pressure lid valve according to German Patent P 40 29 146.4) several times, optionally as a reclosing screw.

In the case shown in Figures 3 and 4, for the first time after filling of the pressure-sealing valve according to the invention, the phases of an automated sealing process are shown. To this end, the cover body 4 is first biased into the closure head 30 of a sealing device. In this condition, the diameter of the cover body 4 is reduced to such an extent that the engagement edge 8 is located at a slight distance from the upper end 13 of the peripheral edge sealing 10 along the entire peripheral edge of the cover body 4 in the position shown in FIG. As the closure head 30 descends, the engaging edge 8 and the peripheral edge flange 10 collide with their chamfered inner peripheral halves 12, in which case any protruding protruding filler material is pinched.

When the closure head 30 is moved further down, the peripheral edge flange 10 is about an axis about located in the region of the fuselage 18, pushed outward along its entire circumference, first from the joint edge 8, then

And 9 by the respective annular projection 32 of the closure 30 (see Figure 4). When the coupling edge 8 is located in the space between the peripheral peripheral rim 10 and the main rib 18, into which the sealant mass 22, preferably still in a liquid state, has been introduced, the closure head 30 it again moves upwardly, with the lid body 4 springing below the peripheral rim 10 as shown in FIG.

If, during the first filling, the lid of the present invention is pressed by the bottle filling device to close the container, the corresponding lid design will allow the product-free dome to be filled with gas through a lance lance at the time of said impression. Steam condensation in the tank or in the pan causes the pressure to be released, which pulls the lid onto the region of the body member 6 covered by the sealing compound 22.

4 and 4 respectively. When a lid body 4 'is used, a suitable pressure relief device may be incorporated to eliminate excess pressure from the air or gas during sterilization of the vessel. In Figures 5 and 6, such an integrated, • 9 • * · 9 • 99 9 ·· 9 »· 9 · · 9 · · 9 9 · · * 9 ·· 9 ····«

- 10 semi-permeable 40 overpressure valves (so-called coffee valves) and how it operates. If there is no overpressure in the sealed container, the diaphragm 42 on the diaphragm 42 of the overpressure valve 40 rests on the sealing surface 44 and seals the openings 46 leading to the inside of the valve (see Figure 5). If, on the other hand, overpressure is created in the canister (e.g., during sterilization), the membrane (42) will open upwardly from the sealing surface (44) so that expanding gas may flow out of the inside of the vessel (46 and 48). overpressure inside.

The inventive features disclosed in the drawings and claims hereinbefore described, individually or in combination, may be relevant to the practice of the invention in various embodiments thereof.

Claims (2)

PATENT CLAIMS A press box with at least one one-piece body (2) and a cover body (4) which, together with the body member (6) disposed at the end of the body (2), forms a sealing closure, wherein the body (2) and the cover body (4) ) is provided with a gap for accessing a lifting device so that the cover body (4) can be lifted and wherein the cover body (4) has a circumferential, springing engagement edge (8) for accessing the body member (6), and wherein the cover body (4) insertable into the body (2), whereby the engagement edge (8) extends into a locking rib (6) of the body member (6) which conforms to the shape of the engagement member (8), characterized in that, instead of the locking rib, an inwardly curved upper circumferential edge flange (10) and, under this upper circumferential edge flange (10), an outer diameter of the engagement edge (8) an inwardly pressed inner rib (18) or a staircase (20) extending inwardly into the core body (2). 2. The pressure lid valve according to claim 1, characterized in that a sealing compound (22) is located under the circumferential edge flange (10) in the environment where the connecting edge (8) extends.