DE7007574U - STACKABLE CONICAL TUBE. - Google Patents

Description

The invention relates to a conical tube body, which s tap a multitude of such bodies in front of the » Filling permitted and has an open end which can be closed by folding up after filling.

If tubes are filled with oily products or food, the usual mechanical closure of theirs is sufficient open end by folding and possibly multiple bending of the tube wall not to the tube contents up to completely tightly seal its use. Therefore tube bodies are in one at their open end before filling ring-shaped area on the inside and / or outside of the tube wall has already been coated with a sealant, which is enclosed between the sealing folds after the tube has been filled and its open end has been closed (U.S. Patent 2,028,112).

It is common to have tube bodies that do not contain any sealing material have described type, to be conical in such a way that they can be stacked one inside the other before filling, as they are

Stacks require considerably less space and - which is particularly important with tube bodies made of soft metal - themselves stiffen each other and are therefore less easy to crush than individual tube bodies (DT-GM 1 820 246).

One would be such known conical tube body, which can be closed by folding the tube wall at its open end are, provided on the inside of the tube wall with a sealant, then this would be because of its usually low Thickness of the order of magnitude of 0.3mm, the stacking of the tube bodies with their usual conicity is not impossible make, but it would prevent the tubes from being pushed so far into one another that they move in the desired manner stiffen each other. In addition, the dibit fabric would isolate make filling the tubes more difficult.

There is also a conical container body known (US-PS 3 323 048), who stacked a large number of such Allowed body before filling and at its open end has a portion of enlarged diameter, the Length in the axial direction is less than or at most equal to the stack division. This known container body is firmly closed at its tapered end and points there a foot that increases its stability; the open end of the container is through not folding, but through Pressing in a circular lid closes, which is in an annular bead on the inside of the container wall can snap into place. The section with the enlarged diameter diameter widens in the shape of a trumpet and has a on its edge stiffening bead.

The invention is based on the object of a conical tube body, which allows the stacking of a large number of such Body allows to be provided with a seal in such a way that the seal when stacking or when handling a stack of such tube bodies cannot be damaged, the mutual support and stiffening of the tube

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body does not deteriorate and does not hinder the isolation of the tube body.

In the case of a conical tube body with the features described at the beginning, this object is achieved according to the invention in that the tube body at its open end, as per se known to have a section with an enlarged diameter, the length of which in the axial direction is less than or at most equal is as large as the stack division that the enlarged diameter portion is provided on its inside with a sealant that it has the same cone angle like the rest of the tube wall and that its diameter compared to the conical tube wall by at least twice the thickness of the sealant is enlarged.

The invention is explained in more detail below with reference to a schematic drawing of an exemplary embodiment. In the drawing show:

1 shows a single tube body; and Fig. 2 several tube bodies stacked one inside the other

The tube body 1 shown in FIG. 1 is slightly conical and closed with a screw cap 2 at its narrower end and at its other end 3 open. At the open end 3 has the wall of the tube body has a section 4 with an enlarged diameter, onto which a sealant 5 is cast on the inside. The thickness of the sealant 5 and the amount by which the tube body expands in section 4 are for clarity for the sake of greatly exaggerated to make it clear that the diameter expansion is at least twice the thickness of the sealant.

If, according to FIG. 2, several tube bodies of the type shown in FIG. 1 are stacked one inside the other, the stacking pitch P results from the length of the screw cap 2 and one part

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a shoulder 6 of the tube body up to the point 7 »at which the screw cap of the next tube body rests on the inside.

The length L of the enlarged diameter section 4 cannot be greater and is generally smaller than the stacking part P. The diameter enlargement can either with the conical widening of the originally cylindrical tube or in a; can be generated later.

Protection claim:

Claims (1)

Protection claim Conical tube body that allows the stacking of a Allowed plurality of such bodies before filling and having an open end that can be folded up after filling is closable, characterized in that the tube body (1) at its open end, as known per se, has a section (4) with an enlarged diameter, the length of which is in the axial direction is less than or at most the same size as the stacking division that the enlarged diameter section (4) its inside is provided with a sealant (5) that it has the same Kegolwinl.el as the rest of the tube wall and that its diameter is increased by at least twice the thickness of the sealant compared to the conical tube wall is.