DE6804737U - TUBE WITH PARTLY WAVY WALL - Google Patents

Description

Tube with partially wavy walls.

The invention relates to a pipe such as drainage pipe, exhaust pipe, Protective pipe or the like, the wall of which is perpendicular to the pipe's longitudinal axis or slightly inclined to it Wave or fold formation similar to adjacent screw threads on v / eist.

It is already known to be made of metal, plastic, rubber or the like Fabrics to manufacture pipes or hoses whose walls are annular or helical for various reasons Waves is folded. One such reason is, for example, the fabric hair loss, because the pipe due to the reinforcing .Welleringe can be made from a thin wall. Furthermore, this is also a relatively hard material bendable to a considerable extent. Especially when using of plastics or similar materials, the tube can be manufactured either piece by piece or continuously v / earth. In the first? All there is such a piece of pipe

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provided as a single part with the wave formation, while in the latter case the one-piece continuously manufactured tube is already deformed before its distribution. The pipe is generally produced as a blank with the help of a so-called extruder machine, which is passed through a device in the course of production, in the form segments in caterpillar-shaped rows, the pipe with the help of vacuum and / or compressed air with the desired shaft ring or shaft thread shape Mistake. Holes and / or pins and / or nails have already been attached to the shaped segments arranged in the caterpillar-shaped device, hot or normal, with which the resulting pipe receives the openings required, for example, for a drainage pipe in the desired shape. The openings can be arranged in longitudinal rows or twisted, unless you want to provide appropriate openings by sawing in the back of the thread. In other embodiments, the holes are also created in a separate device that is separate from the caterpillar-shaped device.

The wavy reinforcements that are not formed in this way can be and / or V- and / or U-wave-shaped, the distribution of these V / wave shapes being uniform or is made in such a way that the back of such a training in comparison to the floor has a different Has length, the reinforcing and flexurally elastic Alternate properties. The material can be made of any kind of plastic consist of either pure or as a mixture or also

is available as a so-called mixed polymer, wherein various binders and fillers can be added.

Such previously known pipes are all symmetrical in terms of their circumference, which has the disadvantage that substances that flow in these pipes in a horizontal or almost horizontal plane are hindered in their flow or linger in the undulating gaps una can get stuck, so that in the long run due to the Increase in slime-forming bacteria and other microbes as well as moss and yarrow formations; inside the tube at its Deposition in the ground means that any flow can be interrupted.

The innovation aims to provide pipes v / ie drainage pipes, drainage pipes or protective pipes, for example for electrical cables in which these disadvantageous liquid deposits and the like are to be avoided.

According to the invention, such pipes, hoses and the like are

; .y designed asymmetrically in such a way that a circumferential section

j: the wall of the ear in the longitudinal direction, not at right angles or at an angle

this running Vellenausbildung is provided so that

\ i the conveyed goods along this flat section unhindered

can slide along, while the wave formations, for example at the top and on the sides of the tube, are still used as reinforcement elements, for example against the pressure of the ground

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- 4 and if necessary, for example when laying these pipes in the ground, increase the flexibility of the pipe. The latter Masenabme is especially in a machine that takes place Laying of pipes, the so-called mole drainage, is necessary. As a result, the pipe according to the invention combines the advantages a flat tube and a tube reinforced by wave formations, without that compared to the bt. Pipes essential There are no advantages. Shields can already be attached to the pipe during manufacture, which cover the holes Protect the drainage pipes at the top and only let the water in from below. The shielding is carried out on the groove formations formed the tool of the caterpillar-shaped device.

The wall section which is flat in the longitudinal direction can have a radius of curvature running in the circumferential direction of the same size as the remaining wall provided with wave formations. The radius of curvature of the flat wall section can, however, also be made larger or smaller, for example smaller if the material to be conveyed can be picked up in a narrow channel and thus flows at a high flow rate until the end of the conveyance, which prevents solid matter from sinking on the bottom of the groove. In this case, the pipe to be bent in a drainage machine is more rigid. The wall section which is flat in the longitudinal direction can be provided with bulges and / or grooves running in the longitudinal direction. The width of the wall section in the longitudinal direction e ' can assume circumferential arc lengths which ^{correspond to angles between r} j ° -nc 150 °. If the flat wall section is kept narrow

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th, several of these sections can be provided around the circumference of the pipe. In this process you can go through Additions to the nozzle of the extruder also fasteners are arranged in the pipe, which an attachment of the pipe allow without holes to be formed in the pipe itself.

The accompanying drawing illustrates some exemplary embodiments of the pipe according to the invention:

Figure 1 shows a perspective partial representation of an embodiment of the tube according to the invention;

Figures 2 to 8 show cross-sectional representations of further embodiments of the tube according to the invention.

In the figures, 1 is the folded section of the pipe wall and 2 is the flat wall section designated. In Figure 5, an embodiment is shown in which the flat wall section 2 has a smaller radius of curvature than the remaining wall part 1, which is folded with wave formations. In FIG. 6, an exemplary embodiment is shown, in which the flat wall section has grooves or bulges 3 running in the longitudinal direction. In the embodiment According to FIG. 7, two flat wall sections 2 and 2a are arranged diametrically opposite one another. To this In this way, the pipe can be kept straight, installation in a duct is easier, since one can look at the position of the upper one Wall section 2a can determine when the oppositely arranged wall section 2 is in its lower position. In Fi

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gur 8, an embodiment is shown in which in the longitudinal direction on the opposite to the flat wall part 2a Side a large gap is provided in the pipe wall. The flat wall part 2a forms a hinge. The pipe can be split or opened with respect to its wall in such a way that it completely accommodates the property to be protected in each case or only partially included as in the embodiment of FIG. 8.

The innovation is not limited to the following claims. It includes all of the features from the description above and the drawing, ■ based on the status of §r§iGht! iG &

Claims (9)

■ - ⁷ - Protection claims j! 1.pipe, such as drainage pipe, exhaust pipe, protective pipe or the like, ί
; its wall perpendicular to the pipe's longitudinal axis or slightly has corrugations or wrinkles obliquely to this similar to adjacent screw threads, characterized in that, that one or more wall sections distributed over the pipe circumference in the direction of the pipe's longitudinal axis are evenly trained. 2. Pipe according to claim 1, characterized in that the radius of curvature in the circumference sr direction of the in the longitudinal direction flat wall & gsabeeimittei ve & that of the rest of the wall from * gives way. 3. Pipe according to one or both of the preceding claims, characterized in that the wall thickness of the in the longitudinal direction flat wall section from that of the rest Wall deviates. 4. Tube according to one or more of the preceding claims, characterized in that the plane in the longitudinal direction Wall section is provided with longitudinally extending grooves or bulges. 5. Tube according to one or more of the preceding claims, characterized in that two planar in the longitudinal direction Wandungsabsennitte diametrically opposite one another are arranged. 6. Tube according to one or more of the preceding claims, characterized in that for the formation of the tube openings are provided as a drainage pipe in the wall. 7. Tube according to claim 6, characterized by above the openings trained protective edges. 8. Tube according to one or more of claims 1 to 5, characterized by designing the pipe as a flue pipe. 9. Pipe according to one or more of the preceding claims, characterized in that the pipe, in particular through a continuous production, made of plastic is made. 10o pipe according to one or more of claims 1 to 5, characterized characterized in that in the pipe wall outside the wall section which is flat in the longitudinal direction in the pipe longitudinal direction a gap is provided that allows the protective tube to be placed on objects to be protected, such as electrical cables. '* Π ¹ ^ γ- 804V3