DE2255018A1 - PROCESS FOR SHAPING THE STRIP END OF PLASTIC STRIPS, IN PARTICULAR PLASTIC TRIM AND TRIM MADE BY THE PROCESS - Google Patents

Description

The Standard Products Company, 2130 West 110th Street,

Cleveland , Ohio 44102 (USA)

Process for shaping the end of the last for plastic, especially plastic moldings, as well as after Process-made moldings

The invention relates to a method for shaping the Strip end with plastic strips, in particular plastic decorative strips. The invention also relates to plastic trim strips produced by the method.

Plastic strips of the type in question are used as decorative and / or protective strips on numerous objects, such as. Tables, boards, discs, counters, counters and

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Counters, packaging containers and packages, etc., attached. Trim strips are particularly popular in automotive engineering used. For example, trim strips are attached to the door surfaces and fenders of the vehicles, around the vehicle body against dents and scratches to protect what can happen, for example, when the door is pushed open against an obstacle.

The plastic strips that can be used for the aforementioned purposes can have different shapes and cross-sections. They are mostly trained in such a way that they do not only have a decorative function, but also have a protective function at the same time. Such decorative strips have a strip body on, which is attached with its underside by gluing or in some other way to the connection surface, while it can have decorative elements on its protruding outside, which increase the decorative effect of the bar. For example, the top of the trim strip can have a convexly curved contour and with a metallized one Be occupied by polyethylene terephthalate film, which gives the plastic bar the appearance of a metal bar. It exists Furthermore, the possibility of designing the contour of the decorative strip so that it has a convexly curved strip middle part and laterally arranged thereon, more or less wide edge parts, which are also convex or otherwise shaped and coated with a thin metallized polyethylene terephthalate film. In the-

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sem Pall, the decorative strip has the appearance of a metal strip, on which a narrow plastic strip or a narrow plastic tape or the like. is upset. The plastic surface the decorative strip between those with the metal coating provided Eandteile can also be designed as a decorative surface. For example, during the shaping the bar a pattern or the like. into the plastic surface be pressed in or the strip middle part can be covered with a thin plastic film that is covered with a printed wood pattern or the like. is provided. But it is just as possible, for example, to use the thin polyethylene. terephthalate film, instead of on the edge parts of the bar, to be arranged in the middle area of the bar. It goes without saying that Numerous cross-sectional shapes for such bumper and decorative strips can be selected and that also for the achievement There are numerous possibilities for the decorative effect.

Moldings of the aforementioned type are generally made by extruding a plastic material, from The continuously extruded plastic profile strips of the required length can be cut transversely. · It is but also possible, the extruded bar in the manner of a tape on a reel or drum or the like. wind up, from who then unwound and cut the bar if necessary will. The application of decorative elements, e.g. a metallized polyethylene terephthalate film, can be done in one operation with the extrusion of the strip,

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with the EiIm immediately behind the spray head on the sprayed profile is applied. Accordingly, it is possible during the ßtrangpreßvorgangs a pressure-sensitive To apply adhesive to the underside of the ßtrangpreßprofils, so that the ßtrangpreßprofil ready to assemble Separated strips or the ßtrangpreßprofil can be rolled up ready for assembly into a roll. in the the rest of the attachment of the decorative strips to the respective connection surface can be done not only by gluing, but also in another way, e.g. by dielectric connection or by mechanical means by means of mechanical connecting elements, such as screws or the like.

If decorative and tossing strips of the type mentioned above are cross-cut to individual length sections and at the connection surfaces, such as the side and door surfaces of a Car body, are attached, the ends of the moldings should be machined and designed so that they Do not reduce the decorative effect of the bar, if possible even improve it. So far, the moldings in general cut transversely perpendicular to its longitudinal direction, whereby in some cases the ßchnitt also obliquely to the longitudinal axis was attached so that the bar tapers towards its end. In these cases, the bars end abruptly in blunt or sloping abutting surfaces that look unattractive and, depending on the cross-sectional shape of the bar, the decorative effect significantly affect. Blunt or sloping

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Cut plastic strips are therefore everywhere, where, how Especially in automotive engineering, stylistic design features are important or even in the foreground, inconvenient and undesirable.

The main object of the invention is to provide plastic, in particular plastic trim strips, which are cleanly machined, appealing and elegant characterize effective strip ends. In particular, the invention aims at a method with which plastic strips of the type in question here can be processed and designed at their ends in such a way that a flawless, results in a clean and shapely-looking last. It should be possible to have the last ends in different Way to make it appealing, as is the case with the use of the strips in the automotive industry for different purposes ]? ahrzeugtypen and the like is desired and appropriate. For example should, according to the method according to the invention, strips of different profiles with a tapered end, a rounded, square, fishtail-like end or any other beautifully designed end will.

The method according to the invention is characterized in that a part of the strip material is thus cut out at the strip end is that between the stopped rope end Strip material has a recess with at least two edges is formed, whereupon the edges are staggered

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Remaining strip parts brought together relative to one another and by connecting the remaining strip parts can be set in juxtaposition.

Thus, according to the inventive method, a section of the strip material is at the end strips cut out, the thus formed ₁ is that at least two cutting edges are formed, which together under formation of the strips statements and are connected or fixed. The cutting out of the strip material at the end of the strip can be effected in different ways, for example by cutting out. There are also various possibilities for the mutual connection of the strip parts that remain at the end of the strip and delimit the recess. For example, the remaining strip parts can be connected by gluing, welding or also mechanically by means of mechanical holding and fastening elements and the like. However, the connection is preferably made by heat sealing or welding the strip parts at the separating surfaces. In this case, the strip material is expediently heated before the remaining strip parts are brought together in order to facilitate this bringing the strip parts together and / or the welding of the same. Even if the connection of the remaining strip parts is not carried out by welding, it can be useful to heat the end of the strip in order to make it easier to place the remaining strip parts together. But it is the same with

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It is possible to weld the bar parts, to put them together without prior heating and then only the. Heating the To make the strip end for welding the cut-free strip parts. The heating of the last material can thus in different ways and with different means, e.g. by using a heating block or the like., done, which has a contour of the bar cutout or the bar recess corresponding Eontur, so that it can be inserted into the groin cutout while doing so the cut-free edges of the strip parts to be stapled together on those for joining and welding these parts brings the required temperature.

Placing the cut-free strip parts together in the connection position in which the cut edges are welded can be set manually or by means of special devices, such as shaping tools, mold jaws, etc., make the from the two opposite sides or be moved in the longitudinal direction of the bar against the bar parts to be connected. Preferably during welding pressure exerted from the outside on the parts of the strip to be welded, in order to ensure good and over the entire length to achieve the connection seam free of gaps and gaps. Optionally, that in the invention Well-designed strip ends are trimmed after the welding process to remove any excess plastic material, which is pressed out of the connection seam under the pressure applied from the outside.

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Decorative strips, the ends of which are produced by the method according to the invention, can have any desired cross-sectional shape and made of any suitable plastic material be made. Suitable for the method according to the invention are above all those organic plastics that soften easily or through mechanical or chemical action Let them shape and form tough, non-crystalline substances that are solid at ambient temperatures. to the plastics that have these properties count especially synthetic resins and cellulose derivatives. Decorative strips of the type in question here are preferably grounded made of a thermoplastic vinyl polymer, suitably polyvinyl chloride, manufactured.

Regardless of the cross-cut of the Lexstenaußenflacli ο>; eiot the trim suitably a cross-sectional shape with a The middle part of the groin lying between two edge parts. The bar can be continuously smooth in the transverse direction Have surface, in this EaIl imaginary lines running parallel to the strip edges, the strip edge parts limit compared to the middle part of the groin. On the other hand, the bar can also have a profile, in which their edge parts compared to the strip middle part by retractions, gradations or the like. are clearly set off. In any case, the end of the strip can be processed and designed in the manner according to the invention in such a way that the edge parts and the middle part of the bar merge into one another and the former form an elegant end of the bar.

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This can be achieved according to the invention in that an edge strip worked out at the end of both edges of the bar is, whereupon the two edge strips are applied against the cut edge of the strip middle part so that they surround this and at the same time lie against one another with their front edges. The strip is preferably cut out in such a way that at least one curved connecting edge on the middle part of the strip is formed. In all cases, the border should be designed so that the decorative surface the decorative strip continues into and over the strip end.

The plastic decorative strip produced by the method according to the invention is characterized, for example, in that it has an at least partially closed strip cutout at the end that is cut free by deformation, the cut edges being placed against one another and fixed against one another, preferably welded. According to a further feature of the invention, the bar has at least one, preferably rounded, butt joint running transversely to the longitudinal axis of the bar and over a partial width of the bar, at which the cut-free bar parts are connected. The strip end is preferably rounded, tapered to a point or fishtail-like or the like. designed in such a way that it is provided with at least one butt and connecting seam running obliquely to the strip axis, possibly rounded. The joints and connecting seams arranged at the ends of the strips

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are appropriately designed so that they are barely visible from the outside are.

Further features of the invention emerge from the individual patent claims and the following description of the Embodiments shown in the drawing. In the drawing show:

Fig. 1 is a perspective view of an unprocessed decorative strip, the end of which according to the invention Process is processed and designed;

Pig. 2 and 3, also in perspective representation, the processing of the decorative strip according to FIG. 1 for the production of a closed, elegant strip end i

4 and 5 show the machining in perspective the decorative strip to produce a rounded end of the strip;

Fig. 6 and 7 a further embodiment, at which provides the bar according to FIG. 1 with an asymmetrical, tapering bar end will j

Fig. 8 and .9 a perspective view of a further design option in which the bar according to Fig. 1 is provided with a fishtail-like strip end}

FIGS. 10 and 11 show a perspective view of the bar according to FIG. 1, here with a tapering one Last end is provided j

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Fig. 12 shows another in perspective. Last profile which is processed at the end according to the method according to the invention can ι

Pig. 13 "and 14 - the processing of the bar according to FIG. 12 for the production of a tapering strip end in a perspective view;

S ¹ Xg. 15 shows a third strip profile which can be machined according to the method according to the invention;

16 and 17 show, in perspective representation, the processing of the in I ¹ Ig. 15 shown strip profile for the production of a pointed strip end.

The drawing, in which preferred exemplary embodiments of the invention are reproduced, shows a decorative strip in FIG 10 made of, for example, an extruded vinyl material. The trim has a solid middle part 12 and on both sides molded edge parts 14 and 16, which extend along the middle part extend. The strip middle part 12 here has a convexly curved upper side 18. The hand parts 14 and 16 are also provided with convexly curved surfaces 20 and 22 on their upper side. The surfaces 18, 20 and 22 can be depressed with a Pattern or the like. be provided, polygamy on the trim gives a decorative effect. In the embodiment, however, the decorative effect is achieved by

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that on the surfaces 20 and 22 films 24 and 26 made of a metallized polyethylene terephthalate are applied, while the surface 18 of the strip middle part with printing or impressions or the like. in the manner of a puncture is provided. The trim strip thus has the appearance of a plastic strip on both of its longitudinal edges is bordered by shiny metallic edge parts. It goes without saying that the middle part of the strip is in the color of the plastic materials is colored, whereby this color can be a contrasting color to the metal of the strip edges. Moldings of this type are generally adhesively bonded to the pad, although the attachment is also can be done in another way, e.g. by dielectric means or by mechanical means. Such are seldom important Decorative strips also provided on their underside with a thin metal part in order to increase the bending stability and stability to increase the bar with respect to longitudinal shrinkage and / or to create a special support and carrier surface for adhesives. Such metal parts can also be used in the invention machined moldings are provided.

From FIGS. 2 and J, the type of processing and shaping of the decorative strip according to FIG. 1 can be seen. According to Fig. ~ 'J the bar is designed at the end so that the bar edge parts together with the bar middle part enclosed by them taper in an arc shape and taper off at a point. This tapering shape is thereby

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achieved that a part of the inguinal material at the end of the groin is cut away in such a way that the remaining strip edge part 30 with the strip middle part 32 has a recess 54 and the latter with the other edge part 56 a wider one Recess 38 forms. The recess 34 is made of two side edges, namely the cut edge 30a of the remaining edge part 30 and the opposite curved Cutting edge 32a of the strip middle part 32 is limited. Accordingly, the other recess 38 is on the one hand through the cut edge 36a on the inside of the remaining strip edge part 56 and on the other hand through the curved Cut surface 52b of the strip middle part 32 limited, the latter terminating in a point that is symmetrical to the Longitudinal central axis of the bar lies. The removal of the molding material at the end of the strip to form the two recesses 34 and 38 can be done in different ways. The material is preferably cut out of the solid material of the bar. In this case, "becomes any recess produced in that a cut along the seam between the last middle part 32 and the relevant Last edge part produced in the longitudinal direction and at the same time the last middle part along a Line is cut obliquely to the longitudinal axis of the bar, which intersects the first-mentioned cutting line and extends from the point of intersection curved towards the end of the bar - to the central axis extends towards the groin. The remaining edge parts 16 and 36 are cut at the end to a length such that

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that they can be pushed inward from the position shown in FIG. 2 in the position shown in FIG. 3, in which they include the cut strip middle part in the manner shown and be mitred with their place front end faces 30b and 36b against one another.

When placing the strip edge parts 30 and 36 against the strip middle part 32 get the delimiting the two recesses Cut surfaces 30a and 32a or 36a and 32b in mutual contact. The edge parts 30 and 56 are thereby each connected to the strip middle part 32 so that this surface system is fixed. This connection can be in in different ways, e.g. by mechanically attaching the strip edge parts to the strip middle part or by Bonding of the parts mentioned can be effected using an adhesive. The connection is preferably made by heat sealing or welding the adjacent cut edges of the edge parts and the middle part. The warming of the strip end facilitates the pressing or placing of the strip edge parts on the strip middle part. The for this Shaping and / or the welding to be carried out heating of the strip end can be effected in different ways will. It goes without saying that the heating temperature depends on the type of plastic material used is different. In the case of a trim made from vinyl material, it is recommended that the trim be heated to a certain temperature from about 205 to 235 G to heat to a reliable ^

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to achieve a casual weld. The heating can e.g. by electrical means, by thermal radiation, by the action of a hot gas, by inductive means or in any other way appropriate manner. Preferably the heating is done electrically, e.g. Heating block or the like., In Pig. 2 indicated by dashed lines at 40, is used. This heating block takes one of the shapes mentioned above Recesses corresponding contour shape can therefore be introduced into the strip recesses in such a way that his Heating surfaces lie on or in the vicinity of the cut surfaces delimiting the recesses. The heating of the heating block 40 can be done in different ways, e.g. with the aid of electrical heating electrodes placed in recesses 42 of the heating block lie. Instead, for heating the heating block before and / or during the warming-up of the Leisteiiendes but other means can also be provided. For example, you can work with a hot medium such as steam which flows through the heating block, or the heating block can be heated by means independent of it and then introduced into the mentioned strip recesses.

The lateral application of the edge parts 30 and 36 to the middle part of the strip 32 can be done by hand or in some other way. Preferably, the strip edge parts with the help of a pair of laterally reciprocating lorm elements 4-6 and 48 in contact with the inguinal

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telteil brought after the bar has been heated to the required temperature and the heating block or other heating smitt el have been removed- those in Pig. J illustrated Form elements 46 and 48 consist of pressure pieces or jaws, the pressure surfaces of which correspond to the curved ones Side surface of the bar are shaped in the end area. It goes without saying that the lateral adjustment of the strip edge parts through back and forth occasional proofs, e tend to be different Kind, e.g. those in the form of rods, plates, etc., can be effected, with these pressure elements so are designed that they lay laterally against the cut-free edge parts in the area of the separating cuts and press these against the middle part of the groin. There can also be several along the two sides of the decorative strip Pressure and form elements or the like. are provided. Included the arrangement can be made, for example, so that a first pressure element presses the last part in its rear area against the last middle part, while at the same time or then another pressure element, the front end of the strip edge part against the strip middle part hires. The adjustment and pressing of the edge parts against the middle part could also be done with the help of an in Bar lengthways back and forth movable, one-part or multi-part Andruckelernents be accomplished. To the free cut j To apply strip edge parts to the strip middle part, devices of different designs can thus be used.

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Also the production of the poria cuts at the end of the last "resp. the cutting of the recesses can be done in different ways Veise through several successive cuts or one single cutting process using a correspondingly shaped cutting template or interacting cutting .. tools are accomplished..Preferably the Decorative strip e.g. set in a jig while it is cut to size, heated and put into the finished form is brought. The tools used for cutting, heating and pressing on the side of the edge parts are in this pail relative to the fixed decorative strip movable. But it can also be worked in the opposite way, by attaching the bar to the fixed in this pail Tools is introduced. Uni the connection To improve between the strip edge parts and the strip middle part, the strip edge parts are useful during the production of the connection under pressure on the middle part of the last held. This pressure can lead to a small amount of the plastic material of the trim is pressed out along the connecting seam between the middle part and the edge parts of the strips. This The pressed out material is removed after the end of the molding has been completed removed to achieve a clean last finish.

Like Pig. y shows, the trim in this embodiment, a tapered end, wherein the, groin edge portions of the strip means towards the tip part to

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border on the side. At the top, the edge parts of the molding lie with their mitered surfaces;> Ob and y6b are next to each other. Behind the shaped strip end, the curved seams between the strip middle part and the strip edge parts continuously merge into the actual strip profile, which, as shown in FIG. Because of this shape of the strip, the seams at the end of the strip between the strip middle part and the strip edge parts are largely covered and invisible. This also applies to the seam on the surfaces; 0b and 56b of the strip edge parts.

In FIGS. 4 and 5, another strip termination is shown, which can be provided for the strip profile according to FIGS. 1 to 1 . In this case, recesses 50 and 52 are worked into the strip end in such a way that two strip edge parts 56 and 58 projecting beyond the strip middle part 5 ^ are formed. The recess 50 is delimited by the inner cut edges 56a and 5 ^ a of the strip edge part 56 and the strip middle part 5 ^. Correspondingly, the cut edges 58a and 5 ^z lb of the parts 58 and 5 ^ - the other recess 52. The cut edges 5 ^ a and 5 ^ -b are arcuately curved and connected to each other at the front end of the strip middle part 5 ^ at 54-c. The strip middle part therefore has an approximately semicircular front edge; accordingly, according to FIG. 5, there is a rounded end contour

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the bar. The Leistenraiidteile 56 and 58 are on one cut so long that it fits with; place their end faces 56b and 58h against one another, vrenii the inguinal edge parts are in contact with the rounded front edge of the middle section of the strip. Cutting the end of the last, the lateral placement of the cut-free strip edge parts 56 and 58 and the connection of the strip edge parts with the strip middle part can be carried out in the manner described in connection with FIGS. 1 to 3. Again, there will be a A clean, largely seamless and continuous molding finish that merges into the actual decorative molding.

FIGS. 6 and 7 show a further exemplary embodiment of a strip termination for the strip profile shown in FIG. In this embodiment, the bar at the bar end only receives a single recess 60 by a Cut along the seam line between one of the two strip edge parts and the middle part and a second Cut is made at an angle to this, which intersects the first cutting line at the one, rear end and extends from here obliquely over the middle part of the strip to the front edge of the strip. The strip edge part is on one side 62 cut free, while the other strip edge part 66 remains connected to the strip middle part 64. the Recess 60 is delimited by two cutting edges, namely by the inner end edge 62a of the strip edge part 62 and the front end edge 64a of the strip middle part 64. At

BATH

Y ^- ■ J T><^ .. HI * Ii ^ d <Λ. H

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In this embodiment, the extends transversely to the strip axis running cutting line over the entire width of the last middle part j it ends at the seam between Strip middle part 64 and strip edge part 66. It results hence the one shown in FIG. 7 which is asymmetrical to the longitudinal axis of the strips Molding end, in which the decorative molding on the edge side 66 continues in a straight line up to the molding point, while it tapers in an arc shape on its opposite end face 62 up to the tip. The cutting line, which forms the cut surface 64a could, however, also have a shape deviating from the convex shape, for example a concave one Have a shape, a straight line or any other contour. The completion of the cut according to FIG The bar can be made in the manner described in connection with FIGS. The end faces 62b and 66a of the strip edge parts 62 and 66 are expediently cut here so that they are in accordance with FIG Fig. 7 place against each other. Also in the embodiment according to FIG. 7, the result is a cleaner, largely seam-free Groin termination.

8 and 9 show an exemplary embodiment in which the strip profile according to FIG. 1 is provided with a fishtail-like strip end. In this case, two recesses 70 and 72 are worked into the strip end in such a way that the remaining strip parts ″ / M- and 78 the recess 70 and the cut strip parts 76

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and 80 form the recess 72. Each recess has two edges. The recess ^ O is formed by the inner cutting edge 78s of the strip middle part 78 and the inner cutting edge 74-a of the cut-free strip edge part 74-. Correspondingly, the recess 72 is formed by the edges 80a and 76a of the strip middle part 80 and the strip edge part 76, respectively. The cutting edges 78a and 80a extend obliquely backward from the strip edge parts into the middle part of the strip, so that they intersect at point 82 which lies in the longitudinal center axis of the strip. This point of intersection 82 could, however, also lie asymmetrically on one side or the other of the strip center axis.

To get the one in Pig. 8 shown cut strip in the finished form according to Pig. 9 zn , the cut-free strip edge parts 74 and 76 are folded inwards opposite the V-shaped cut in the middle part of the strip. In order to facilitate this folding movement, the strip edge parts 74- ι * ¹¹ *! 76 at the folding points provided with notches or constrictions 84 and 86, the side surfaces of which run obliquely to one another and to surfaces 78a and 80a, so that the surfaces of these constrictions lie against one another when the edge parts 74 and 76 are in the finished form according to FIG. 9 are brought. In this exemplary embodiment, the strip edge parts 74 and 76 are preferably brought into the finished form according to FIG. 9 by hand. They are with their surfaces 74-a and 76a on the inner surfaces 78a and 80a

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attached to the middle part. If a weld connection of these surfaces is provided, one in the shaping a correspondingly designed heating tool, for example the tool 88 indicated by dashed lines in FIG. 9, is used, which is inserted into the recess of the bar end. Then with a suitably shaped, but unheated tools apply pressure to the end of the last exercised. However, the end of the strip could also be heated in other ways, with the tool 88 in this case can only be used to exert contact pressure during the welding process. Also in the embodiment 8 and 9 results in a shapely looking, clean strip termination with a largely seamless and smooth transition from the bar to the bar end.

FIGS. 10 and 11 show a further embodiment of a strip termination for the strip profile according to FIG. The bar is given a tapering bar end, similar to that of FIG. 3. FIG. The cut edges of these strip parts 92 and 94- are denoted by 92a and 94a. They extend from the ledge edges 98 and 100 obliquely backwards into the ledge middle part 96, where they intersect at the apex of the recess. The cut-free strip parts 92 and ^ ^ί \ ■ are

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measured Pig. 11 pressed inwards so that they are with their Place cut surfaces 92a and 94-a against one another. The connection the strip parts on these cut surfaces are expediently carried out by welding. The side pressing together of the strip parts 92 and 94 · and connecting the same take place in the manner described above. With this last end the last middle part is up to the tip laterally bordered by the strip edge parts; the seam runs lengthways across the middle part of the groin between the molding edges 92 and 94 ·· With the appropriate coloring it is hardly noticeable in the middle of the groin. Anything due to the contact pressure at the seam during the welding process Any plastic material that has been pressed out can then be removed so that the seam is not particularly noticeable emerges.

In all of the exemplary embodiments described above, a plastic strip is assumed, the strip profile of which consists of a middle part and the adjoining, particularly pronounced narrow edge parts. It goes without saying that the invention is not restricted to such a strip profile, but also in the case of others Strip profiles, e.g. the strip profile according to Fig. 12 can be used.

The bar according to FIG. 12 has a plastic bar body 112 with an approximately roof-shaped outer contour, which slopes downwards from two to the two ledge edges -

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the surfaces 114 and 116 and adjoining them, steeper sloping ledge surfaces 118 and 120 is formed. It goes without saying that the bar on its top with decorative elements of any kind, such as, for example, indented eyelets and imprints or applied decorative films or the like. Mistake can be. In the illustrated embodiment, there is a thin metallized polyethylene terephthalate film on the bar applied, which gives the bar the appearance of a metal bar.

It can be seen that the decorative strip according to FIG. 12, in contrast to that according to FIG. 1, does not have any pronounced strip edge parts that are set off with respect to the strip middle part
on v / eist. The connecting line between the Lei st eiyaitt elteil and the strips edges rather is determined here by imaginary lines 126 and 128 which are spaced from the ßeitenrändern of the strip in the longitudinal direction thereof ^~>r; trekken. The distance between these imaginary lines and the side edges of the bar can vary depending on the shape of the top side of the bar, the width of the bar and the desired shape of the bar end.

In FIGS. 1; ″, and 14, in one exemplary embodiment, the
Machining and shaping of the strip end for a strip profile according to FIG. 12 is shown. As FIG. 14 shows, here the bar is given a tapering bar end, similarly
that according to Fig. ^. To produce such a molding end, recesses l; 0 'are made in the end of the molding.

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and 1: -2 incorporated so that between over the middle part of the groin protruding cut-free strip edges 1 $ 4 and 1: 8 a middle part tapering towards the end of the last 1 ^ 6 is formed. The recess IrO is made of the cutting edges l:; 4a and l ;; 6a of parts 1 ;; 4 and 1 "ί> 6 formed, while the recess 1 ^ 2 from the cut edges li; 8a and lj-6b of the last parts 1 ^ 8 and 1 ;; 6 is limited. The pressing of the free cut groin parts 154 · and 118 against the Leisterin middle part 1 ~ 6 can be related in the be done with dep other exemplary embodiments described manner. The same applies to the connection of the Inguinal parts at the curved seam between the middle part and the respective edge part.

The groin profile according to S ¹ Ig. 12 can also have a different: · Bar Dab conclusion, for example that according to FIGS. 4 to 11.

The versatility of the design of the last closure according to the invention also results from the Ji ¹ Ig. 15 to 17 · In i ^l ig. 15 ei.u strips Prof is il shown for a decorative strip 140, wherein the Leictermittelteil in contrast to the profile genäß l ⁿ ig. 1 is narrower than the edge of the groin. The bar has a plastic bar body 142 with a concave bar surface 144 which is provided with a rib running loudly above you as a bumper bar. int. This tilting 146 can be made in one piece at de α

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The strip body 142 can be molded on or connected to it as a separate part. The butt 146 and the one below The material of the strip body 142 forms a strip middle part, while those located next to the rib 146 on the side Bar parts can be viewed as bar edge parts. The seam lines between the edge parts of the groin and your middle part of your groin run along the root lines of the central rib 146. In the illustrated embodiment, the upper sides of the strip edge parts are respectively with a metallized polyethylene terephthalate film 148 proven. The decorative strip thus has the appearance of a metal strip, on which one runs in the middle over the length of the strip Plastic protective strip sits.

The bar according to FIG. 15 can receive a bar termination of any type including the above-described embodiment examples. In the embodiment according to FIGS. 16 and 17, the strip end is designed so that it is given a tapering shape. For this purpose, two recesses 150 and 152 are machined into the strip end in such a way that two protruding strip edge parts 154 and 158 and an intermediate strip middle part are formed. The recess 150 is of the cutting edges 154a and 156a of the Leisteriteile limits 154 and 156, while the cutting edges 15SA and 156b of the strip parts 150 and Iy ^'1 limit the recess 152nd The freigesclmitteaeri Leirt,.! Edge parts 154 and 158 can laterally inwards

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are pressed, -by which the cut surfaces are brought into contact will. The ledge edge portions 154 and 158 are on the End faces 15 ^ b and 158b cut at an angle so that they when the Leisteiiraiidteile are pressed against the middle part of the groin place against each other, as shown in FIG. The pressing of the cut-free strip edge parts and the Establishing the same can be done in the manner described above, it being useful for connecting the strip parts a weld connection is provided.

In most of the embodiments described above the cut-free strip edge parts are of the same length, so that their butt joints are in the central axis of the strip middle part lies. But nothing stands in the way of measuring the length of one of the two ledge edges so that he sieved completely around the cut face of the Last middle part around, so extends from one side of the last to the other side of the last.

It is understood that the invention is based on those described above Embodiments is not limited and changes are possible without the scope of the invention to leave.

309828/0680

Claims (1)

Expectations ! .. Method for shaping the end of the strip in plastic strips, in particular plastic trim strips, characterized in that part of the strip material at the strip end is separated out in such a way that there is a recess between the remaining parts of the inguinal ministerial is formed with at least two edges, whereupon the edges relative to the offset of the remaining strip parts brought together and fixed by connecting the remaining strip parts in abutment will. 2. The method according to claim 1, characterized in that the bar is heated before moving the remaining parts of the bar. '■ j. Procedure according to. Claim 1 or 2, characterized in that the remaining strip parts are connected by gluing or welding these parts to the adjacent edges, at least over part of the edge parts. 4. The method according to .Anspruch ^, characterized in that the bar on a; such a temperature is heated that \ ß ■ the k c nt en when they are brought together under the war The welded η. 5. Procedure according to. Claim ] or 4, characterized in that 3 0 9 8 2 8/0 6 8 0 SAD ORIGINAL that on the remaining parts of the groin in aneiii-Einclergends Edges at the same time a pressure is exerted. 6. The method of one of claims 2 to 5, characterized in that that the plastic strip made of a vinyl material and the strip material on an iDeuperctTir from etx / a 2ü5 to 2;. · 5 G is heated. 7. Method according to one of claims 1 to 6, characterized in that that the recess at the end of the bar is so vorgenorinen is that an edge strip is worked out on one strip edge that against the bcheittkante of the strip middle part deformable and in A: jlf.'ge is set at this cutting edge, ". 8. The method according to claim 7 »characterized in that an edge strip at the end of both sides of the bar is worked out, xroron the two edge strips be applied against the cut edge of the strip middle part so that they enclose this and at the same time with their ötirnkanten lying next to each other. 9 «Method according to claim 7 or 8, characterized in that that the bar is cut out in such a way that at the central part of the bar formed at least one curved Arischlußkante will. 10. The method according to any one of claims 7 to 9 »characterized in that that in the case of a plastic strip with a strip edge arranged on both sides of the middle part of the strip-- 3098 28/0680 _ _: o - share a l'rennschnitt at least between the one strip edge part and the strip middle part and another cut is made which cuts the first-mentioned incision and extends from the interface at least partially into the strip middle part and across this: s through, and that after removal of the Tremit strip part, the cut-free strip edge part is formed with the cut edges placed against one another against the strip middle part and is fixed in this position. 11. The method according to claim 10, characterized in that a cut between the two groin parts and the last middle part is made, whereby these separating cuts meet in the last middle part, whereupon the cut-free strip edge parts from "both sides are placed against the strip middle part and fixed v / earth. 12. The method according to any one of claims 1 to 6, characterized in that that from the end of the bar a cutout cut out by making incisions, that extend from a point of intersection between the edges of the groin to the two edges of the groin extend what'die cut edges of the free cut Le is ent ei Ie [; mutually; which are laid and fixed. 1 ": .. plastic trim, manufactured according to the procedure or · · 9828/0680 according to one or more of claims 1 to 12, characterized in that at the end it has a strip parts (30, 36, 56, 5> 8, 62, 74, 76, 92, 94, 134, 138, 154, 158) cut free by deformation has at least partially closed strip cutout, wherein the cut edges are placed against one another and fixed to one another. - · 14. Bar according to claim 13 _9, characterized in that it has at least one transverse to the bar longitudinal axis and over a partial width of the bar, preferably ¹ rounded seam, at which the cut-free bar parts are connected. 15 »Bar according to claim 13 _S, characterized in that it has a rounded ^ tapering or fishtail-like end with at least one ^ preferably rounded joint and connecting edge running obliquely to the bar axis.» 16. Bar according to one of claims 13 to 15 _S characterized _? that at least one of the two strip edge parts is cut free at the end of the strip and placed wholly or partially around the front side around the middle part of the strip as a border ». BADOHiGiMAL 30 9 82 87OS8'0 '· ^{M ::} "