DE7247207U - Airtight or vacuum container with reusable lock - Google Patents

Description

Airtight or vacuum container with reusable lock

In the case of containers, the contents of which must not come into contact with the outside air, e.g. B. Printing inks, food or other perishable Goods, the seal is particularly at risk if the vessels z. B. are exposed to bumps during transport. These Dangers apply especially to three-part containers made of thin sheet metal, e.g. B. below a thickness of 0.5 mm, which is from economic Reasons is desirable. In particular, sealing and seams were the cause of leaks.

The present innovation has therefore set itself the task of a closure especially for containers made of drawn Peinstblech to create that retains its vacuum tightness even with strong impacts and even with major deformations of the vessel. Here there is the further requirement that the cover for use with simple means easily and without Deformation can be opened to him after the first

Konio: Bayerische Vereinsbank (BLZ 750 20073) 5804 248 Postal checking account Munich 89369-801

Place of jurisdiction is Regensburg

To continue to use the opening as a sufficiently tight closure for use.

According to the innovation, the object is achieved in that starting of a known container with shockproof vacuum seal with a hollow bead of the container and using a slip lid with a circumferential, in the axial direction to The edge of the container is open and the sealing bead encompasses the latter and with a hollow bead of preferably circular cross-section on the lid, which is encompassed by the lid bead Container in its cross-section while maintaining the radial hollow cross-section to the extent of a multiple of Sheet thickness in the radial or horizontal direction is smaller than that in the axial or vertical direction and that on the Container wall one in the closed state in the neighborhood circumferential, self-contained plate-like bead is provided, which is located at the edge of the cover bead and has such an outer diameter has that shocks from neighboring objects are kept away from the lid or deflected.

In this training, the difficulty that, as in previous vacuum closures with a hollow bead, the Due to its rigidity, the lid easily springs back into the closed position when it is opened, while on the other hand a unintentional opening of the lid in the event of impacts reliably prevented is, with the plate bead in spite of the small sheet thickness an almost absolute rigidity in radial and also in axial Direction provides with the additional advantage that no contents of the vessel enter the plate-like bead and there can get lost.

The innovation is explained in more detail with reference to the figures, which represent an exemplary embodiment. Show it:

1 shows a cross section through a closed can in a first embodiment.

Fig. 2 shows a similar representation of a second embodiment.

In Figure i, 1 is made of sheet metal, in particular thin sheet, for example in the range of 0.3 mm, in the deep-drawing process manufactured container in which ara circumference near the opening first of all a bulge 2 which is open radially inward is produced, which is shown in phantom in FIG. 1. He has a Mündungshohlwulstrand 3, the radial or horizontal cross section a is much narrower than that in the vertical or axial direction b. The beaded rim 3 is open at the bottom or towards the edge of the vessel mouth Closure bead 4 of a slip and push-in cover 5 includes, a lid hollow bead 6 is pushed over the container mouth bead 3 ^ e $ that in cross section when opening a Dead center pressure point 7 occurs near the lower end of the bead edge 3, in contrast to known, dashed lines registered lid bead edges 8 of circular cross-section, in which the dead center contact point further away, is around 9, which means that such containers are very difficult to open because the lid due to its internal stress slides back again and again when the cover is lifted off. The flat, preferably rounded triangular or Trapezoidal cross-section should in any case be smaller in the radial direction than in the axial direction, but but a multiple of the thin sheet thickness. The cut edge of the vessel flange should also be approximately butt against the vessel wall vertically or at an angle that, for example, no further curling up when the container is closed of the bead occurs.

There is one between the mouth bead 3 and the ceiling bead 4 Sealing compound Io, which can also extend over a substantial part of the side surfaces of the mouth bead 3. This has the advantage that the seal is still maintained in the pusher even if at the head end at 11 the connection between Wu '"s {and sealant already should be interrupted. On the other hand, the point of engagement 7 should be kept free of sealant. The plate-like The bead should be designed so that at the kinks

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13 as far as possible no gap remains to prevent the contents of the container from entering in the residual cavity of the bead 12 to avoid. The plate-like inclined towards the container mouth Bead 12 has to achieve absolute rigidity of the container in the radial and axial direction for the endangered Can edge the task and effect, neighboring bodies,

z. B. Another container, which during transport by Rüttelffektuncf could cause the slip lid to be lifted off, for example to deflect it in the direction of arrow P.

When opening the lid, which is usually after interruption of the Vacuum z. B. by piercing a fine opening by hand, Spaltvesrlargeerung between the plate bead and Deckelwulstrand or else can be done by reaching under the bead edge 6 with the help of a lifting tool, the bead edge needs initially only at one point the dead center 7 without any noteworthy |

To exceed deformation in order to jump back into the I.

To prevent locked condition. Will this be for a further |

Part of the circumference carried out, the cover will come off in front of I

preferably instead of jumping by gently gliding fully fj

constantly from the container. The lid can then, if necessary, under Closing the small auxiliary opening attached for opening but can still be used as a use lock to the Contents öcr can at least for the use-up time before to protect rapid ruin.

In a further embodiment according to Figure 2 is between Bead edge 6 and mouth bead 3 still have a locking bead

14 provided, which is pressed in after closing the lid or rolled in order to achieve a particularly high sealing force, the circular bead of the Lid can be used to attach the opening tools.

The plate-like bead 12 can advantageously be removed , • Also used as a stacking bead to keep it away from bumps be to when stacking a larger number

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unsealed vessels a disturbing sticking together or Prevent jamming of the container. This facilitates the automatic stacking of the containers in front of them Filling. Dab $ j. the vessel should expediently move towards the bottom rejuvenate, but only so far that when the Stacking bead on the mouth of the lower container almost absorbs the containers and at the same time as deeply as possible inside one another lie.

The use of drawn containers e.g. B. made of aluminum or sheet steel is particularly important for vacuum vessels, as the Up to now often common container division into three parts in base, wall and cover connection points between the parts and in particular makes necessary when producing the wall from a tape, which makes a vacuum tightness very difficult can be. By closing the opening 13 of the protective bead 12, the vessel contents, in particular in the case of viscous products, it can be completely emptied without difficulty, as it is practically smooth and stepless inner wall results in what was not possible with the earlier open protective corrugations.

Claims (12)

• · Il <- f I * * Protection claims 1. Container made of thin sheet metal, preferably under 0.5 mm, with shockproof vacuum seal with hollow bead in the container mouth and using a snap-on lid with a circumferential axial direction towards the container edge open sealing bead and with a hollow rim of preferably circular cross-section, characterized in that the container bead (3) encompassed by the lid rim bead (6) is a multiple of this the cross-section of the sheet thickness, in the radial or horizontal direction (a) is smaller than the (b) in axial or vertical direction and that on the container wall (1) one in the closed state in the vicinity of the Deckelwulstrandes (6) lying circumferential plate-like closed bead (12) is provided, which one has such an outer diameter that impacts by neighboring objects kept away from the lid edge (4 to 6) baw. to get distracted. 1. a) Container according to claim 1, characterized in that the lid rim bead (6) radially inwards immediately behind the locking point (7) of the container bead rim is molded. 2. Container according to claim 1, characterized in that the plate-like container bead (12) is so completely closed that a smooth, stepless wall is created and a Entry of the product into the bead is largely prevented. 3. Container according to claim 1 and 2, characterized in that the cross section of the container mouth bead (3) rounded triangle or trapezoid or is narrower at the mouth than on the opposite side. ·· 4 V · «4 t> "" mm 7 M 4. Container according to claim 1 to 3, characterized in that that the bell-like bead (12) is inclined in the direction of the container mouth. 5. Container according to claim 1 to 4, characterized in that that the plate-like bead (12) serves as a Sta pelsicke when empty containers. 6. Container according to claim 1 to 5, characterized in that that on the lid between the lid bead (6) and the container bead (3) in the immediate vicinity of the latter, a locking bead formed radially inward after closing (147 is provided. 7. Container according to claim 1 to 6, characterized in that as much sealant (lo) is used that except the end face also the side faces of the container bead (3) to a substantial extent against the sealing compound (lo) rest, while the lid engagement position (7) of the container edge is kept free of sealing compound. 8. Container according to claim 1 to 7, characterized in that that as a container drawn sheet metal container z. B. aluminum or sheet steel can be used. 9. Container according to claim 1 to 8, characterized in that the locking dead center (7) of the lid in the Neighborhood of the lower edge of the container bead (3) is. 10. Container according to claim 1 to 9, characterized in that that the plate bead (12) is so close to the container bulge (3) that just one is supported on it as VJiderhalt Opening tool finds space. 11. Container according to claim 1 to lo, characterized in that the container (1) tapers downward so far, that when the stacking bead (12) rests on the mouth bead of the respective lower container, the container (1) lie one inside the other almost sucking and without jamming. - P .- 12. Container neich claim 1 to 11, characterized in that the cut edge (3 ¹ ) of the container bead (3) at right angles or only slightly different so on the: container wall (1) encounters that no further curling of the container bead occurs when pressed radially .