DE2331934A1 - Railway level crossing beam - comprising a glass fibre tube overlaid with plastic and glass fibre strips - Google Patents

Abstract

The glass fibre tube for the beam is impregnated with a synthetic resin, and the overlaid strips of plastic and glass fibre fabrics are applied before the resin has hardened, the outer flexible strip being laid along the length of the beam under tension to protect the pattern developed by the two-colour materials. Device gives a patterned beam having accurately positioned colours and with accurate dimensions.

Description

Applicant: CRW Chemierohrwerk Ing.Proch? .Ska GmbH & Co. KG 8901 Rehling-Oberach, Langv / eicorstr. 22nd

Process for the production of a plastic barrier boom

The invention relates to a method of manufacture a plastic barrier boom for a railway barrier with color coding, preferably two-tone, under Verg an appropriately colored preprinted plastic

whose width corresponds to the length of the barrier and whose length corresponds at least to the circumference of the barrier and which is glued over the circumference of a prefabricated plastic pipe.

It is already known to use any objects, in particular household items and household items, as well as sports equipment and the like to press out of plastic and then stick on a preprinted film to then protect layer to be attached. The film and protective layer can also be applied at the same time. When ver ~ v / euduTig such, known coatings in the production of barrier booms, however, is the coating to proceed very precisely, because those that characterize the barrier boom colored stripes must be attached exactly according to the instructions.

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233193Λ

The object of the present invention is therefore to create a simple method for the exact application of such multi-colored printed layers on barrier booms.

This is achieved in that a more flexible, more flexible, length of the barrier that corresponds to the dimensions of the barrier boom Rails clamped on both sides as an outer tensioning strip from one of the rails into sieve, from the tube radius and · * · directions moving guide device on the prefabricated Plastic tube applied, preprinted plastic fleece and over a between the tension strip and the Plastic fleece laid glass fabric is drawn and tensioned in such a way that said plastic fleece and the Glass fabric strips pulled smoothly over the prefabricated plastic tube and glued to it.

This allows a simple guide device and a flexible, stretched between two rails Strip any number of layers of glass fabric and a printed plastic fleece on the prefabricated plastic tube be applied. The guide device and the flexible strip ensure a smooth surface of the completed barrier boom. In addition, prevents the between the plastic fleece and the flexible strip inserted glass fabric strips pulling apart the pre-printed plastic fleece. This means that the The two-tone markings to be provided on the barrier boom exactly match the pre-printed sample. In addition, the use of synthetic resin-permeable material, glass fabric strips and plastic fleece is possible, so that it is not necessary to soak these strips with adhesive or plastic resin before reclamping. As a result of the above, a distortion of the pattern to be applied is not possible and also guaranteed the guide device and the flexible strip as well as the

⁺ possible preload derived movement - <3 -

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associated rails a perfect coating of the plastic pipe without overlaps and without joints. Additional Aids are not required for this. Aur.serdew result for the rails due to the preconditions two straight movements from the required movement curve » what a significant simplification of the control of the guide device brings with it.

According to a further embodiment of the invention, placed between the prefabricated plastic pipe and the plastic fleece glass fabric and through the from the guide device stretched flexible strip with pulled over the prefabricated plastic pipe and stretched.

This also makes a possible due to friction between the plastic fleece and the plastic pipe occurring distortion of the pattern as a result of pulling apart the plastic fleece prevented.

This is a further development of the invention Then the glass fabric and the plastic fleece over the plastic tube made of synthetic resin-soaked glass fabric curious if the synthetic resin is not yet fully cured.

This means that "a prior soaking of the

© i
lowing layer-with synthetic resin unnecessary. The impregnation takes place automatically during reclamping, as a result of the pressure exerted by the flexible strip.

According to a further embodiment of the invention, the plastic fleece and the glass fabric strips are wider than the circumference of the plastic pipe so that a protruding, Synthetic resin impregnated running in the longitudinal direction of the barrier boom Bar is formed, which on both sides of

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clamped in the rails by the guide device and is pressed together.

This gives you a bar, which also corresponds accordingly the pre-printed cough is marked in two colors.

According to a further embodiment of the invention are protruding parts of the glass fabric strip running in the longitudinal direction prepared with synthetic resin.

This also prevents the ends of the bar from sticking together Layers ensured.

According to a further embodiment of the invention, the rail width corresponds to the conductor width, so that the bar by cutting edges of the rails in the movement controlled by the guide device to a predetermined one Width is cut,

As a result, the The bar can be cut to the specified width over the entire length of the barrier.

According to a further embodiment of the invention, between the two ends of the inner, protruding glass fabric strip a stiffening strip glued.

This makes it possible to use this bar when the strength of the layers glued together is not enough, however to give sufficient strength. The bar can also be used for hanging additional items Labeling parts, as is sometimes required for barrier trees. All that is required is the embossing of holes for hanging the intended identification plates or other things. Can by means of eyelets

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an amplification of the holes can be achieved.

According to a further embodiment of the invention, the Stiffening strip has a T-shape in such a way that the strip edge adapted to the radius of the plastic pipe is in front after being glued to the plastic tube with the glass fabric and plastic fleece.

This ensures that when a stiffening strip is used, there is sufficient tear resistance is reached between the bar and the plastic pipe.

According to a further embodiment of the invention, when the guide device is arranged above the plastic pipe the glass fabric layers to be applied and the plastic fleece in a corresponding sequence on the plastic pipe and then the flexible strip carries out the tensioning process by means of the guide device.

In this way, the method is simplified when the guide device is arranged above the plastic pipe.

According to a further embodiment of the invention, when the guide device is arranged below the plastic pipe the glass fabric layers and the synthetic fleece are placed on the flexible strip in a corresponding sequence and then, by means of the guide device, the flexible strip adheres said layers over the whole Circumference evenly on the plastic pipe ..

This simplifies the process when the guide device is arranged below the plastic pipe.

According to a further embodiment of the invention is or are between the layers, in particular between the

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Glass fabric strips and the plastic tube, a copper wire and / or contact plate for the formation of an electrically conductive monitoring circuit for break points inserted.

An exemplary embodiment of the invention is described with reference to the drawings. The drawings represent the for the Implementation of the necessary facilities and the material are only shown schematically. The dimensions are also chosen arbitrarily and drawn particularly large for the sake of understanding. As the for performing the procedure necessary facilities are known per se, they are not described in detail. The matching Parts are designated in the same way in the three figures and only differ by index symbols.

With 1, 1 ^f and 1 "the plastic pipe made of glass fabric is referred to in FIGS. 1 to 3". This plastic tube made of glass fabric is impregnated with synthetic resin during production and is not fully aiishardened when the process described below is carried out, so that when the layers are drawn on, these layers can be impregnated with synthetic resin, so that the applied layers do not have to be impregnated with plastic beforehand.

The process involves using a pre-printed synthetic fleece in an impeccable manner around the plastic pipe that is to be used as a barrier boom, so as to to get an exact! preferably two-tone marking.

As is well known, the barrier booms are red and white Stripes that run diagonally across the trees are marked. The two-tone markings must be accurate be applied. Since the layers to be glued onto the plastic pipe are in particular the printed one here

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Plastic fleece must be permeable to synthetic resin the material of the synthetic fleece must also be appropriate. But this means the use of a material which - under certain circumstances, as it must also be suitable for pre-printing, preferably made of a glass fabric that can be easily pulled apart. This is why it is also referred to as 2, 2 ', 2 "in FIGS. 1 to 3 Plastic fleece to be covered with a feston glass fabric strip 3, 3'5 3 ", which has roughly the same tensile strength as the glass fabric from which the plastic tube is made is wrapped. If a flexible strip 4, 4 ', 4 "in FIGS. 1 to 3 is now over the glass fabric 3 to 3" stretched, a distortion of the printed pattern is not possible because the glass fabric strip makes contact between the flexible strip and the plastic fleece prevents In addition, the amount of synthetic resin that penetrates the applied layers is limited by the fact that this only The synthetic resin required for gluing is pressed out of the not yet fully cured plastic pipe.

The flexible strip is between two lengthways of the barrier boom running rail? i ^ ef-6stigt and these rails are grounded by a guide device, which is not shown, in two rectilinear directions of movement from the movement-Es derived from the tube radius, possible pre-tensioning of the flexible strip and necessary smoothness tension it remains to be mentioned that both the plastic fleece strips 2, as well as the glass fabric strip 3 and also the flexible strip 4 is as wide as the barrier boom is long. The length of the strips mentioned corresponds to the circumference of the boom. This is intended to express that the layers are not wound up, but are wrapped around the barrier boom. The flexible strip stretched between the rails 5

^ directions (curve in Fig.l) emerged, guided.

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is made by moving the rails 5 in two directions brought to the plastic pipe in such a way that first the lower part of the layers between A and B according to Fig. 1 pressed against the plastic pipe and tensioned accordingly and then by the movement of the rails in the second direction the spanning of the

upper half of the plastic pipe with the layers is done.

When the guide device, as indicated in Fig. 1 is ₅ below the plastic's pipes attached, and thus the rails first v / ground in an upward direction and then moved toward each other, the · layers prior to re-clamping on the flexible strips in appropriate be Sequence placed, ie in the present case first the glass fabric 3 and then the plastic fleece 2.

2, 3 it should be shown that if the width of the strips to be applied is greater than the circumference of the plastic pipe, a protrusion of the plastic fleece and the glass fabric strips can be used to form a strip 6 ¹ or 6 ″, which is preferably the same width as the rails. In this case, the outer rail edges can also be used as a cutting device for this strip, so that if the rails are designed accordingly, a given strip width can be ensured that runs uniformly over the longitudinal direction of the barrier boom without any special work process becomes necessary.

In FIG. 2 is also indicated that inserted an additional glass fabric strips between the plastic web 2 'and the plastic tube 1 can ¹ v / ground, so that the strip gets einr · additional strength. Through this

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It is also possible to use this bar as a suspension device for additional identification plates or the like. In addition, there is the additional glass fabric strip to prevent the marking from being distorted.If this additional glass fabric layer is dispensed with or if it is not sufficient for the strip's tear resistance, an additional stiffening strip as shown in Fig.

9 '*

zv. ^be stuck on. Such a stiffening bar has

Ϊ0 ^{1 f J} preferably a T-Forra. One strip edge is then adapted to the radius of the plastic pipe and is glued to the plastic pipe before the layers are applied. In each case, both in the method according to FIG. 1 and in the method according to FIG. 2 and in the method according to FIG Rail and is also connected to the adjacent corners of these edges. This is indicated in FIGS. 1 and 2 with the designations 8 and 8 ^1.

The method differs insignificantly for the embodiments according to FIGS. 1 to 3. In the execution foiifi according to Fig. 2 it is assumed that the guidance voi - direction is arranged above the plastic pipe and the layers to be applied first, i.e. before the up poor, on the clamped in a corresponding device Plastic pipe that corresponds to the given layering The sequence is applied, after which the flexible strip is removed from the guide device by the movement of the Rails in two directions over the pipe evenly and is stretched smooth.

Also in the embodiment according to FIG. 3, the guide device can be both above and below the

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Attached to the plastic pipe. In the representation after FIg. 3 it is assumed that this is below the plastic pipe. The directions of movement I and II of the guide device and thus the rails 5 "are the same in each case.

As already mentioned above, it is enough for gluing of the layers mentioned if the plastic pipe made of synthetic resin soaked glass fabric is not full is cured. only the protruding edges are special to glue, for which purpose when introducing a stiffening strip it is sufficient to soak this stiffening strip synthetic resin. Otherwise it is sufficient for a glass fabric to meet Longitudinally the protruding strip is prepared with synthetic resin accordingly.

As already mentioned, the stiffening of the bar is only necessary in order to be able to use it later Bar for hanging any additional identification plates for ecraogiifäaTjter stiffening strips is conveniently placed between the two ends of the glued inner, protruding glass fabric strip.

If necessary, a copper wire can be inserted and / or the contact plate for the formation of a conductive monitoring circuit for break points in the plastic pipe . are despised even in the manufacture of the plastic pipe if this copper wire and / or contact plate are inserted between the layers to be applied. Preferably this copper wire is on the top Glass fabric layer which is applied directly to the plastic pipe is glued, to be applied before the Uiasspannvorgang, in particular, when the guide device is arranged below the plastic pipe. This arrangement of the guide device below the plastic pipe means

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that this guide device first moves the rails upwards and then towards each other, namely with the overlooked and tensioning operation of the flexible strip.

It should also be mentioned that the flexible strip is therefore flexible so that it can be lashed smoothly and evenly of the plastic pipe with the layers, glass fabric strips and plastic fleece, becomes possible.

Finally, it is pointed out that the Plastic pipe radius, i.e. from the length encompassing the pipe the glass fabric and plastic fleece strips, as well as the flexible Strip and both from the (necessary) flexibility of the latter strip also for tensioning the To be applied Schiehten necessary bias a, in Fig.l indicated, predeterminable direction of movement for each Rail results. This direction of movement corresponds partially to one circular curve, which, since a flexible strip is used for tensioning, turns into two straight ones Can divide movements, like this with 1 and II in Fig ^ l is indicated.

The directions of movement shown are not specified in the illustration according to the design, but only serve Understanding. With the appropriate flexibility of the strip stretched between the rails, even a horizontal and a vertical direction of movement can be achieved with a corresponding pipe radius that is not too large. This then becomes even more an additional simplification of the control by the guide device achieved. This is the case with the usual trees. From the above it can be seen that, as shown in Figure 1

^s ' the flexible strip in the starting position (i / 2 designed strip length = r + ev, strip width) has the lowest (no) pretension and in the intermediate layers of the rails definitely a greater pretension (strip expansion) for the purpose of pulling it onto the plastic pipe ,

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Claims (12)

Al claims 1. 'Process for the production of a plastic barrier boom eü for a railroad barrier with color coding, preferably two-colored, using an appropriately colored pre-printed plastic fleece, whose width corresponds to the length of the barrier boom and whose length corresponds at least to the circumference of the barrier and which is beyond the scope of a pre-made art. fabric tube is glued, characterized that one of the mentioned .dimensions of the Schxanirenbaumes corresponding, more flexible, in barren length Rails with strips clamped on both sides as an outer tension " strip from one of the rails from Rohrraö.ius and possible '- bias voltage derived. Directions of movement moving guide device on the prefabricated Pre-printed plastic sheets laid out on plastic pipes and so drawn over a glass fabric placed between the tensioning strip and the plastic fleece and it is tensioned that said synthetic fleece and the glass fabric strip smoothly over the prefabricated one Plastic pipe pulled and glued to it. 2. A method for producing a plastic barrier boom according to claim 1, characterized in that that also between the prefabricated plastic pipe and the plastic fleece glass fabric placed and by the flexible strip stretched by the guide device with over the prefabricated Pipe is pulled and tensioned. 3. Process for the production of a plastic barrier boom according to claim 1 or 2, characterized in that the glass fabric and - II 409883/0599 the synthetic fleece over the resin-impregnated Plastic pipe made of glass fabric is then tensioned when the synthetic resin has not yet fully cured is. 4. Process for the production of a plastic barrier boom according to one of claims 1 to 3, characterized in that the plastic fleece and the glass fabric strips are wider than the circumference of the plastic pipe, so that a protruding in Longitudinally of the barrier boom running, synthetic resin-impregnated bar is formed, which on both sides is clamped and pressed together by the rails by the guide device. 5. Process for the production of a plastic barrier boom according to claim 4, characterized that the protruding lengthways glass fabric strip parts with Synthetic resin .are prepared in advance. 6. Process for the production of a plastic barrier boom according to claim 4, characterized that the rail width corresponds to the rail width, so that the rail through cutting edges of the rails in the movement controlled by the guide device to a predetermined width is cut. 7. A method for producing a plastic barrier boom according to claim 4, characterized that between the two ends of the inner, protruding glass fabric strip a stiffening strip is glued. - III - 409883/059 9 BATH ORIGINAL 8. A method for producing a plastic barrier boom according to claim 7, characterized in that that the stiffening strip is soaked in synthetic resin before intermediate gluing, 9. Process for the production of a plastic barrier boom according to claim 7i characterized that the stiffening strip has a T-shape in such a way that the radius of the plastic pipe Adapted strip edge before being reclamped with the glass fabric and plastic fleece on the plastic pipe is glued. 10. A method for the manufacture of a plastic barrier boom according to one of claims 1 to 9, characterized in that when the guide device is arranged above the plastic pipe, the glass fabric layers and the plastic fleece are placed on the plastic pipe in a corresponding sequence and then the flexible strip by means of the guide device d.en completes the clamping process. 11. A method for producing a plastic barrier boom according to one of claims 1 to 9> dadtirch marked that when the Guide device below the plastic tube, the glass fabric layers and the plastic fleece in the appropriate The sequence is placed on the flexible strip and then the flexible strip by means of the guide device the above-mentioned layers are evenly adhered to the plastic pipe over the entire circumference. 12. A method for producing a plastic barrier boom according to claim 10 or claim 11, characterized - IV 409883/0598 characterized in that between the layers, in particular between the glass fabric strips and the plastic tube, a copper wire and / or contact plate for the formation of a electrically conductive monitoring circuit for break points is or will be inserted * 409883/0599 Blank page