DE19737676C1 - Plastic hose with a metallic appearance, eg for showers - Google Patents

Abstract

A plastic hose comprises an inner tube (10), a metal coloured band (11,14) spirally wound around the inner tube, and at least one clear outer tube (15). The primary metal coloured band is wound so that gaps are formed between the windings. The secondary metal coloured band is wound in the gaps. The outer tube covers both metal coloured bands. Use - The component is used as a plastic hose, eg for a shower. Advantage - The hose has a metallic appearance.

Description

The present invention relates to a plastic hose, comprising an inner tube, at least one on the top metal colored ribbon that spirally around the outside Inner hose is wrapped around and at least one colorless outer tube with which the inner tube and the metal colored tape are covered.

Plastic hoses from the prior art known genus known, for example as Find shower hoses. They used to be flexible Shower hoses mostly used metal hoses. After that is one went over to these metal hoses To replace plastic hoses, however, aimed at is that such a plastic hose in its appearance resembles a metal hose. Mainly with shower hoses is such an aesthetic appearance of a Plastic hose wanted, like a metal hose looks like. Compared to the conventional metal hose, the Plastic tubing has the benefit of an inexpensive Manufacturing and it is also due to the metal hose superior to its smooth and therefore easy-care surface, because the flexible metal hoses used earlier were so constructed that a spiral metal band was present, with each turn with one to the outside projecting rib was provided, the hose in Longitudinally collapsible and the individual Windings of the metal band overlapped and with each other were hooked. The hose was flexible and in this way but had a ribbed, non-flat outer surface.

For those replacing this metal hose You have plastic hoses with an inner hose designed around which a metal colored ribbon is spiraled is wrapped around, with this arrangement a colorless Outer hose is shrunk.

Plastic hoses of this type are, for example, from the DE 295 13 280 U1 and DE 195 45 603 A1 have become known. At  these plastic tubes can be seen in the gaps between the windings of the metal-colored tape, mostly black colored inner tube so that the visual appearance not like that of a metal hose of the aforementioned type. In addition, the colorless outer tube is also in the cavities between the windings of the metal colored ribbon shrunk so that the plastic hoses are not flat has a ribbed outer surface. Such plastic hoses are not easy to care for.

Another recently known from DE 44 19 120 A1 plastic hose has a smooth outer Surface with a colorless outer tube and through a the hose also has an underlying metal-colored layer a continuously metallic-colored appearance, that is metal-colored windings are not optically through here interrupted a black inner tube. Nevertheless is with this plastic tube the optics the above conventional metal hose not comparable, because with the The metallic surface runs continuously through the plastic hose in one plane and is smooth while the metal hose there are two different circumferential levels spiral according to the windings, so that this metal hose has a three-dimensional appearance. On such a three-dimensional appearance is for the viewer more pleasant than a completely smooth two-dimensional plane Appearance of the metallic-looking plastic hose aforementioned type.

The object of the present invention is accordingly a Plastic hose of the type mentioned at the beginning create one hand that has a continuously metallic effect has outer surface, but on the other hand in its aesthetic appearance the conventional ribbed Metal hose comes closer. The latter is done by one certain three-dimensional metallic effect or hologram-like effect achieved.

The solution to the task provides an inventive plastic hose with the  Features of the main claim. Preferably the first is metal colored band in an inner circumferential plane around the Central axis of the plastic hose around with less Arranged in diameter and is the second metal colored band in an outer circumferential plane with a larger diameter arranged which concentrically surrounds the inner circumferential plane. Especially if in this preferred embodiment in at an oblique angle to the longitudinal axis looks plastic hose according to the invention, the occurs hologram-like effect clearly visible, but also in Consideration of the plastic hose according to the invention perpendicular to the longitudinal axis you can see that the windings one metal-colored band through spaces which are interrupted by the other metal colored ribbon covered. This makes the visual impression different from that of a plastic hose of the type mentioned with a continuous metal-colored surface, for example is achieved by a single metal colored foil. The The hose according to the invention has a visual impression thus the ribbed flexible conventional metal hose closer. This is a matter of concern with the plastic hose according to the invention is intended. At the same time, however, it has a colorless color Outer tube has a smooth outer surface and is easy to clean. Compared to the conventional metal hose, the Plastic hose according to the invention the advantage that it for Example of enamelled surfaces in a bathtub mechanical impact not scratched.

According to a preferred technical solution, the plastic hose according to the invention so that one first colorless hose that provides the inner hose (which can be colored or black or also transparent) covers and also covers the first metal colored tape and with it. The colorless tube can, for example be shrunk on. Through the outer peripheral surface of this The first colorless tube becomes a layer at the same time created, according to a variant of the invention  can wind up the second metal colored tape. Then you can provide another second colorless tube, the both the second metal colored band and the first metal-colored tape covers and thus as an outer tube serves.

However, other solutions are also possible, for example can the second metal colored tape on a plastic profile stick on or extrude into a plastic profile and then this plastic profile on the first metal colored tape or wind up on the inner tube. In this variant is achieved in one step by winding up the second metal colored bands with this plastic profile on that glued metal colored tape or in which the metal colored Extruded tape is that the metal colored tape in one second outer circumferential plane with a radial distance from the first metal-colored band is without that the first metal-colored tape with a must cover the first colorless hose. In this variant you can then use the spiral wound plastic profile with the second metal colored tape with a transparent one Cover the outer hose. This transparent (colorless) Outer hose can either be the plastic profile so tight overlying that it also fits into the gaps between the individual windings of the plastic profile and thereby also abuts the underlying layer, whereby maintain the smooth outer surface of the colorless outer tube should stay. The colorless outer tube can only the plastic profile with the outer metal-colored band Cover tightly on the outside, leaving the gaps between the individual windings of the plastic profile remain free.

The inner tube used can be used as part of the Invention by internal or overlying longitudinal threads or an internal or overlying cross fabric reinforce. One such reinforcement is an inner tube but known as a measure per se from the prior art.  

If you use a plastic profile that the metal-colored outer band is glued or in this Tape is preferably extruded in the outer region, then this plastic profile serves as a kind of spacer to the to create second outer circumferential plane in which the outer metal colored tape is so that this is a distance from the inner circumferential plane in which the inner metal colored tape is located. This plastic profile is preferably rectangular in cross section so that it is its underside rests on the first colorless tube and the second metal-colored outer bands in one cylindrical circumferential plane. But you can also Use plastic profiles with other cross sections. If for example the outer surface of the plastic profile is arched and the outer metal colored band if necessary also arched transversely to its longitudinal direction (winding direction) is, this is also within the scope of the present invention. The achieved optical effect and the appearance of the Plastic tubes are a little different then, but that The basic principle with regard to the structure is retained. It is important in the context of the present invention that two Metal colored ribbons are used that are spiral be wound up, the windings preferably overlap so that the gaps between the windings of the first metal colored band through the second metal colored Band are covered and the viewer looking at the Plastic hose in the radial direction metal colored surface looks.

In the context of the present invention, it does not matter whether the spirally wound metal-colored tapes in each case to the left or to the right, i.e. in the Clockwise or counterclockwise around the central axis of the hose are wrapped.

Both the inner metal-colored band and the outer metal colored tape can be of different widths, which means different overall impressions in the appearance of the  Hose can be generated. You can also see the inside choose a metal-colored band narrower and the outer one Make the metal-colored band wider than the inside or also vice versa.

It is not essential that the exterior metal colored tape the spaces between the windings of the first inner metal-colored band completely covered, even if this is preferred. It is advantageous however, if the outer metal colored band is not only the Gaps between the windings of the interior metal-colored tape just covered, but another there is some overlap in the marginal areas.

The respective radial distances between the respective circumferential planes of the first metal-colored band and the second metal colored bands from the imaginary central axis of the Hoses can be selected in different sizes, whereby you can vary the distance by the first colorless tube chooses different strength or, if one Plastic profile is used, this to different degrees executes. The three-dimensional effect mentioned above will also even with a small distance between the circumferential planes reached both metal-colored bands.

If you use narrow metal-colored bands and thus one wide winding distance, then you get a metal colored Hose with broad streak impression while in use narrow metal-colored bands and accordingly narrower Winding creates a narrow impression. Both is within the scope of the invention as well Variants with alternating narrow and wide stripes Use a narrow metal colored band and one wide metal-colored ribbon.

Another variant of the present invention provides the first inner metal-colored band and the second outer metal colored band in a different direction of rotation, the  means once clockwise and once in Wind it counterclockwise on the inner tube. In In this case, the hose gets a diamond-shaped or herringbone pattern. Because with such a winding gaps remain between the metal-colored bands, in which the view of the inner tube is possible you also start with a first inner metal-colored band wind up, then a second inner or outer Wind the metal colored tape in the same direction so that one is already a completely metallic colored one Exterior surface and then a third metal-colored Band to these first two bands cross in the other Wind up the direction of rotation.

The features mentioned in the subclaims relate to preferred embodiments of the invention. Additional advantages the invention result from the exemplary embodiments.

The present invention is described below with reference to Embodiments with reference to the accompanying Drawings described in more detail. Show

Figure 1 is a view of a shower hose according to the invention in partial longitudinal section.

FIG. 2 shows a view of a shower hose according to the invention in cross section along the line II-II of FIG. 1;

Fig. 3 is a view of a shower hose according to the invention according to an alternative embodiment of the invention in partial longitudinal section;

FIG. 4 shows a cross section through a shower hose according to the invention along the line IV-IV of FIG. 3;

Fig. 5 is a view of a shower hose according to the invention according to another alternative embodiment in partial longitudinal section;

6 shows a cross section through the shower hose along the line VI-VI of Fig. 5.

Fig. 7 is a view of a shower hose according to the invention according to another alternative embodiment in partial longitudinal section;

Figure 8 is a cross section through a shower hose according to the line VIII-VIII of Fig. 7.

Figure 9 is a view of a shower hose according to the invention according to another alternative embodiment of the invention in partial longitudinal section.

Fig. 10 shows a cross section through a shower hose along the line XX of Fig. 9.

First of all, reference is made to FIGS. 1 and 2 and a first alternative embodiment of a shower hose according to the invention is described on the basis thereof. The shower hose consists of an inner hose 10 which is generally extruded and z. B. can be colored black. As can be seen from the drawing, the inner tube 10 can have longitudinal threads 13 for reinforcement, which are therefore incorporated on the inside or can also rest on it.

As an alternative to such longitudinal threads 13 , an internal or overlying cross fabric (not shown) can also be provided for reinforcement, this reinforcement serving, inter alia, to relieve the strain on the base tube or inner tube 10 .

Around this inner tube 10 , a first band 11 with a metal-colored surface is spirally wound so that there is always a gap between each web of this band 11 . These gaps given by the spacings of the individual windings can be of different widths, preferably they are about so wide that they correspond to the width of a band 11 or are somewhat smaller as shown in the exemplary embodiment according to FIG. 1.

The metal-colored band 11 is known as such in principle from the prior art. Here z. B. a tape made of aluminum or aluminum-vapor-coated plastic film can be used, which then achieves a chrome-colored impression in order to be as similar as possible to a shower hose made of metal.

After the inner tube 10 has been completely spirally wrapped with the metal-colored tape 11 , a first colorless tube 12 is drawn over this arrangement as a close-fitting transparent epidermis, so that the arrangement then has a smooth outer surface which is passed through the outer surface of the colorless tube 12 is limited.

Now, a metal-colored second band 14 is wound spirally on the outer surface of this colorless hose 12 , as can be seen from the drawing in FIG. 1, such that the individual windings of the metal-colored band 14 cover the gaps between the windings of the lower metal-colored band 11 . This gives an optical impression of a completely metal-colored, for. B. chrome-colored hose, but the windings of the outer metal-colored band 14 lie in an outer cylindrical circumferential plane and the windings of the inner metal-colored band 11 lie in an inner cylindrical circumferential plane which has a smaller diameter and these two planes are concentric with one another, as is the case with taken from Fig. 2. This gives the shower hose a plastic appearance, whereby when viewed obliquely on the hose in a pointed wrap to the longitudinal axis through the underlying, preferably dark inner hose 10 in the contact areas between the superimposed windings of the metal-colored bands 14 or 11 shades are visible, whereby the plastic optical impression is enhanced.

About the winding of the metal-colored second band 14 , a colorless hose 15 is then again preferably pulled over as an outer hose, so that the shower hose as a whole again has a smooth surface on the outer circumference and the hose through the individual superimposed plastic layers of the inner hose 10 of the first lying in the middle colorless tube 12 and the colorless outer tube 15, as can be seen from FIG. 2, is essentially solid in itself.

In the following, reference is now made to FIGS. 3 and 4. The illustration shows an alternative embodiment of the present invention. Again, an inner tube 10 , optionally reinforced with longitudinal threads 13 , is provided.

An outer metal-colored first band 11 is spirally wound onto this inner tube 10 in a manner similar to the exemplary embodiment according to FIG. 1. However, this metallic band is not covered with a first colorless tube 12 as in the exemplary embodiment according to FIG. 1. Rather, a second band 14 is wound up in this case such that it is part of a plastic profile 16 or 17 , which is shown separately in FIG. 3. The plastic profile 16 has a rectangular cross section and can be transparent or colored in chrome or possibly in a different color. The metal-colored tape 14 is glued onto the outside of this plastic profile 16 . If this plastic profile 16 with the metal-colored band 14 is wound spirally onto the inner tube 10 such that the individual windings of the plastic profile 16 are each between the windings of the first metal-colored band 11 , an effect similar to that of the exemplary embodiment described above is achieved. Even now the two metal-colored bands 11 and 14 lie in two different circumferential planes, the plastic profile 16 serving as a spacer between the second outer metal-colored band 14 and the inner tube 10 , so that the plastic effect is again achieved. In addition, a complete metal-colored surface is also visible to the outside here, since the gaps between the inner metal-colored bands 11 are covered as far as possible by the outer metal-colored bands 14 . The plastic profile 16 does not have to be solid, but can also contain cavities.

An alternative variant provides for the use of a similar plastic profile 17 , in which, however, the metal-colored band 14 is on the inside, ie is completely enclosed by the plastic profile 17 , e.g. B. by extrusion.

After the plastic profile 16 , 17 is wound up with the metal-colored tape 14 , the entire arrangement is now covered with a colorless outer tube 15 , if possible again so that it lies closely against the layers underneath and a compact plastic tube results, which has a smooth exterior Has surface, as can be seen from Fig. 4.

5 and 6 another alternative embodiment of the invention will now be described with reference to FIGS.. In this variant, the basic structure of the hose is slightly different. In this case, an inner tube 100 is provided which has a continuous outer metal-colored surface, e.g. B. by an externally glued or extruded metal foil. The inner tube 100 can e.g. B. outside chrome color. This chrome-colored inner tube 100 is now covered again with a first colorless tube 12 , which has a smooth surface on the outside. A metal-colored tape 14 is then spirally wound onto this first colorless tube 12 in a manner similar to that in the previous exemplary embodiments. Between the individual windings of this metal-colored band there are again gaps, which can be seen in FIG. 5, which correspond approximately to the width of a metal-colored band and through these gaps you can now see the metal-colored outer surface of the inner tube 100 underneath, so that for the viewer again Effect of a continuous metal-colored surface is achieved, the plastic effect is also achieved by the further outer windings of the metal-colored tape 14 . In order to obtain a smooth outer tube, a second colorless tube 15 is now drawn over the metal-colored band 14 as an outer tube, preferably in such a way that it lies closely against the layer underneath, similarly to the exemplary embodiment according to FIG. 1. Also in this variant one as seen from Fig. 6, consisting, in principle, a compact multi-layered solid plastic tube from the inner tube 100, the middle layer forming colorless tube 12 and the outer tube forming a colorless hose 15. The outside of the entire hose has a smooth surface again.

Subsequently, a further embodiment with reference to the drawings, FIG. 7 and FIG. Described. 8 Similar to the exemplary embodiment described above, the inner tube 100 is also colored metal on the outside. Therefore, only a metal-colored tape 14 is wrapped around the inner tube 100 . However, unlike in the variant described above, the metal-colored tape 14 is not separately, but instead glued onto the outside of a plastic profile 16 or extruded into a plastic profile 17, similar to the variant according to FIG. 3. The plastic profile 16 or 17 is wound on the metal-colored inner tube 100 , one obtains a winding with the metal-colored band 14 in each case at a distance from the circumferential plane of the metal-colored inner tube, wherein in the gaps between the individual windings of the metal-colored band 14 and the plastic profile 16 , 17 in each case Inner hose 100 lying underneath the circumferential plane is visible. Here, too, a plastic, continuously metallic surface is achieved for the viewer.

The entire arrangement is now again covered with a colorless tube 15 as an outer tube, which preferably lies so close that it also lies in the gaps between the individual windings of the plastic profile 16 , 17 (e.g. by shrinking on), so that again A solid total hose is created as can be seen from Fig. 8. Since the outer tube 15 is colorless, it provides a view of the metal-colored inner tube 100 in the gaps between the individual windings of the metal-colored band 14 .

A further alternative embodiment of the shower hose according to the invention will now be described below with reference to FIGS. 9 and 10. In this variant, similar to the variant according to FIG. 1, a z. B. black or other colored inner tube 10 is used. On the outer circumferential surface of this inner tube 10 , a first metal-colored band 11 is first wound spirally with gaps, similar to the variant according to FIG. 1. The gaps then initially cover the outer surface of the z. B. black inner tube 10 can be seen.

Now a second metal-colored tape 14 is wound in a spiral shape so that it covers the gaps between the individual windings of the first metal-colored tape 11 as far as possible. However, this metal-colored tape 14 is not used separately, but similar to the variant according to FIG. 3, the metal-colored tape 14 is glued to a plastic profile 16 or it is extruded into a plastic profile 17 , so that this plastic profile 16 or 17 acts as a spacer and the circumferential plane 14 in which the second metal-colored band is located concentrically around the inner circumferential plane of the first metal-colored band 11 , as can be seen from FIG. 10. In contrast to the previous example according to FIG. 7, the entire arrangement is now also covered with a colorless outer tube 15 . However, this colorless outer tube 15 is either thinner than in the previous exemplary embodiments, or else it is not pulled on so tightly (shrunk), so that the colorless outer tube 15 forms an outer skin with a smooth outer surface, but this only on the inside on the inside of the second metal-colored band 14 , but gaps 18 remain between the individual windings of the plastic profile 16 and 17 . These gaps or spaces 18 are formed by the distance between the inner surface of the outer colorless tube 15 and the outer surface of the first metal-colored bands 11 . In this variant, too, an overall shower hose is created with a continuous metal-colored surface, whereby the two alternating windings in different levels again achieve a plastic effect similar to that of the earlier training examples.

Claims (14)

1. Plastic hose comprising an inner hose ( 10 ), at least one metal-colored band ( 11 , 14 ) on the upper side, which is wound spirally around the outside of the inner hose ( 10 ) and at least one colorless outer hose ( 15 ) with which the inner hose ( 0 ) and that metal colored tape ( 11 , 14 ) are covered,
wherein the plastic tube comprises a first metal-colored band ( 11 ) which is spirally wound on the inner tube ( 10 ) such that there are gaps between the individual windings and that this comprises a second metal-colored band ( 14 ) which is thus wound on the tube is that the individual windings of the second metal-colored band ( 14 ) seen in the side view are at least partially in each case in the gaps between the windings of the first metal-colored band ( 11 ),
wherein the outer tube ( 15 ) covers both wound metal-colored bands ( 11 , 14 ). 2. Plastic hose according to claim 1, characterized in that a first colorless hose ( 12 ) is provided which covers the inner hose ( 10 ) and the first metal-colored band ( 11 ). 3. Plastic hose according to claim 1 or 2, characterized in that the second metal-colored band ( 14 ) is wound on the first colorless hose ( 12 ) which covers the inner hose ( 10 ) and the first metal-colored band ( 11 ). 4. Plastic hose according to one of claims 1 to 3, characterized in that a second colorless hose ( 15 ) is provided as an outer hose, which covers both the second metal-colored band ( 14 ) and the first metal-colored band ( 11 ). 5. Plastic hose according to one of claims 1 to 4, characterized in that the first metal-colored band ( 11 ) lies in an inner circumferential plane around the central axis of the plastic hose with a smaller diameter and that the second metal-colored band ( 14 ) in an outer circumferential plane with lies larger diameter, which concentrically surrounds the inner circumferential plane. 6. Plastic hose according to one of claims 1 to 5, characterized in that the second metal-colored tape ( 14 ) is glued to a plastic profile ( 16 ) or extruded into a plastic profile ( 17 ). 7. Plastic hose according to claim 6, characterized in that the transparent outer hose ( 15 ) covers the spirally wound plastic profile ( 16 ) or ( 17 ) with the second metal-colored band ( 14 ). 8. Plastic hose according to one of claims 1 to 7, characterized in that the colorless outer hose ( 15 ) covers the outer metal-colored band ( 14 ) or the plastic profile ( 16 , 17 ) with the outer metal-colored band ( 14 ) tightly, so that it also lies in the gaps between the individual windings of the outer metal-colored band ( 14 ) or the plastic profile ( 16 , 17 ) on the underlying layer. 9. Plastic hose according to one of claims 1 to 7, characterized in that the colorless outer tube ( 15 ) covers the plastic profile ( 16 ) or ( 17 ) with the outer metal-colored band ( 14 ) closely fitting on the outside, but between the colorless outer tube ( 15 ) and the underlying layer in the gaps between the individual windings of the plastic profile ( 16 , 17 ) gaps ( 19 ) remain. 10. Plastic hose according to one of claims 1 to 9, characterized in that the inner hose is reinforced by internal or superimposed longitudinal threads ( 13 ) or an internal or superimposed cross fabric. 11. Plastic hose according to one of claims 1 to 10, characterized in that the plastic profile ( 16 , 17 ) onto which, a metal-colored outer band ( 14 ) is glued or into which this band ( 14 ) is extruded is transparent. 12. Plastic hose according to one of claims 1 to 11, characterized in that the plastic profile ( 16 , 17 ) is rectangular in cross section. 13. Plastic hose according to one of claims 1 to 12, characterized in that this at least a first includes metal colored ribbon that spirally in one first rotation is wrapped around the inner tube and at least a second metal colored ribbon, the spiral in an opposite direction of rotation Inner hose is wound, so that the windings of the two metal-colored bands are arranged crosswise. 14. Plastic hose according to one of claims 1 to 13, characterized in that this is a first metal colored band that spirals around the Inner tube is wrapped, a second metal colored Band that spirals in the same circumferential plane or another circumferential plane wrapped around the inner tube and at least a third metal colored band that is wrapped in a spiral around the inner tube in one Direction of rotation, the direction of rotation of the other two metal colored bands is opposite.