DE19912940A1 - Device for strapping packages and profile strip, in particular for covering the band channel of the package strapping device - Google Patents

Abstract

Device for strapping packages, in which the band channel (28) of the band guide frame (13) is covered by profile strips (30) which consist of a highly elastic material and beyond the free edges (37, 38) and from the bottom (46) of the Strap channel (28) are attached to the strap guide frame (13) and when pulling the strapping open immediately in front of it without a jerk and bend outward and at the same time close behind the strap again quietly and cover the strap channel (28).

Description

The invention relates to a device for strapping pack pieces, with a tape guide frame, which the package with Ab stood surrounded and its band channel on the package turned a full-length side and itself Actively closing cover, which consists of profile strips exists, which are attached to the tape guide frame and a tenwand and have an end wall, which the package facing side of the band channel at a distance from the channel floor min partially overlaps.

In the known strapping devices he closer at the beginning refined type, the band channel is fed to the package turned inside by angled metal strips of short length covered that on the two side walls of the tape guide frame mens are supported at both ends with coil springs, so that they can tip out and release the strapping, if there is a tensile force on this when lashing around the package inside the space enclosed by the belt guide frame is practiced. Since the cover flaps fe at their ends stored, but rigid, they open and close under the inward pull of the strapping not gradually, but suddenly and often all over it Length, causing the strapping to emerge from the band guidance uneven and with a lot of noise running. It is also difficult to tension the spring on the bearings make all flaps the same. Develop through this the cover flaps along the belt guide frame differed  reaction forces and leave the strapping on the strap advance in different, not predetermined places emerge from the tape guide frame. Then band form loops that can hinder the transport of the package. As well can the strapping when retracting the strap for lashing the Tape on the package uncontrolled at different, not exit the previously determinable points from the tape guide frame what about the transitions between the individual cover flaps can also happen very jerkily. Damage to the pack pieces, the strap guide segments and on the strapping be the result. In addition, the tape can be retracted twist or the desired strapping level not sure he pass. This can cause disruptions in the onward transport of the Package and occur during load securing.

The object of the invention is a strapping device trained in the beginning so that the order maturation band also in longer band guide channels with low Can promote sliding friction resistance without interference and the poss The most completely covered band channel under the inside directed pull of the strapping following this evenly opens and successively behind the worn band closes. At the same time, noise should be reduced and easy assembly can be achieved.

This object is achieved with the invention in that the Profile strips made of a highly elastic material, wel ches at least in the area of the band contact surfaces has low sliding friction value and high wear has strength and that the profile strips beyond the free edges and from the bottom of the tape channel on the tape guide frame men are attached.

This configuration has the advantage that the profile strips at Strapping devices with an invariable size closed tape guide frame made of one piece each hen and can cover the band channel of the entire frame. It there are therefore no joints in the cover, which obstacles  nisse for that at high speed through the band channel form a closed strapping. Because of the high elasti tity of the cover profile strips, the same over their entire length is, the end walls of the profile strip under the train of the Gently give in the strapping following this and behind the leaked band back to its original position sweep in which they close the band channel again. Hereby it is ensured that the strapping is successively from the Tape channel is pulled out and only ever when the tape is retracted a point emerges from the band channel and is even without lateral misalignment or unwanted belt twist creates the package.

The attachment of the profile strips beyond the free edges and beyond the bottom of the band channel gives the profile strips one great travel and high elasticity when under the train of the strapping bend outwards and the outline release the way inwards to the package.

The side wall and the front wall of the profile strips after the Er are at an angle to each other and are from one highly elastic material with high flexural fatigue strength manufactured in pieces. You can use it to produce inexpensively will endure many load cycles.

The profile strips can also only on one side of the band guide be arranged around the frame and with its end face the volume cover the entire width of the channel. Particularly useful it is, however, if the profile strips on both sides of the Band guide frame arranged and their end faces against each other who are judged. As a result, the strapping is off kick centered inwards and lies exactly on the desired one position on the package.

The free edges of the end faces are opposite each other Ordered profile strips can be set at a certain distance from each other. Then they open more easily. If that Strapping however at very high speed through the  Band channel around the package, it is appropriate if the end faces of the on both sides of the tape guide frame mens opposite profile strips against each other butt so that the band channel when moving around the strapping band which is closed.

The profile strips can on the side surfaces of the tape guide be attached to the frame, but it is also possible to use the Profillei except for the outer surfaces of the tape guide frame lead and fasten there. The swivel arm is thereby larger, which the profile bar when opening the tape channel Available.

The profile strips are arranged on their inner surface Anchoring means fastened in anchor openings, which in the outer surface Chen the tape guide frame are arranged. Here, the Profile strips have continuous terminal strips with which they in continuous anchor grooves in the side walls or in the Outer surfaces of the tape guide frame are clamped.

For an unobstructed circulation of the strapping in the bandka nal are in the corners of the tape guide frame Corner pieces with a corner bridging, curved or po lygonal band channel arranged by the correspondingly curved Profile strips is covered. Because the profile strips are highly elastic they can be the curvature of the band channel in the corners slightly adjust the tape guide frame, especially if the side walls of the profile strips in the area of the corner pieces be cut in their free edge.

There are strapping devices in which the strap guide frame is adjustable in height and on packs of different sizes pieces can be optimally adjusted. With such Vorrich the tape guide frame has an adjustable height ren upper bar, in which a band channel is arranged, which in the Band channel of a corner piece fastened to the upper ledge merges. The lower ends of both corner pieces of the top bar are in the led vertical post of the tape guide frame.  

To also such strapping devices with profile strips To equip the invention, the side walls of the Band channel of each corner piece up to the end walls the profile strips attached to the post. At the Oberriegel or at Corner piece are then attached to pressure medium, which the end walls of opposite profile strips below the corner squeeze the piece together.

When the top bar is lowered, the side walls of the bandka open nales of the corner pieces the profile attached to the posts by pushing apart their end walls. In order to however, the band channel in the post does not open further than necessary, the pressure medium hold the end walls of the profile strips on the posts a little below the transition to the corner pieces together so that the band channel at the transition points to the corner piece is only open along a small area and around of the tape can proceed safely.

The pressure medium can have resilient sliding plates, which by Support strips are worn, which are at a lateral distance from the Posts are attached to the top bar or corner piece. Since that Tape passing through the tape channel in the corner area pieces is pushed outwards, it is in itself not necessary also cover the band channel in the area of the corner pieces. It he however, there is greater security, even if at the corner piece Profile strip pieces are attached, the end walls up to the End walls of the profile fastened to the mullion and the upper transom afford enough.

If the strapping machine works with steel straps, they can Profile strips according to the invention made of spring steel his. For strapping with plastic polypropylene straps, Polyester or the like. The profile strips according to the invention expediently made of a highly elastic plastic. This art Fabric can be an elastomer, a thermoplastic or a partial or fully cross-linked, thermoplastic elastomer. To a higher one To achieve stability, it is appropriate to the side wall  and / or the end wall of the profile strip by unidirectional to reinforce running or woven fibers or threads. On the one hand a high springback when opening and To achieve closing, on the other hand, but also to the tape Passing through the belt channel is to give secure guidance the elasticity of the side wall of the profile strip is greater than that Front wall elasticity. A Me tall strips be stored and it is appropriate to the forehead wall on the inside with wear and sliding elements Polytetrafluoroethylene (PTFE) or its copolymers hen.

It is particularly important to open the front wall at its free edge the entire length to be wear-resistant because of the strapping when leaving the band channel with its sharp longitudinal edges along the free edges of the end walls of the profile strips slides and the band edges like the edges of a knife ken. The front wall is at its free edge for reinforcement Expediently with a high-strength plastic wire with a smooth Provide outer surface. This high-strength plastic wire can just like the wear and sliding elements on the inside the end wall when producing the profile strip together with the side wall and the front wall are extruded. Here ver weld the different plastics of the front wall and of the wear elements and form an intimate connection different one, so that the reinforcements even in rough operation cannot detach from the profile bar again.

To ensure the greatest possible resilience of the profile strips To achieve when opening and closing is the elasticity of the Side wall larger than the elasticity of the front wall. From the same reason are the anchor means with which the profile strips attached to the tape guide frame, near the free Edge of the side wall of the profile strip, so in the largest possible Distance from the front wall. These are anchor agents appropriately molded on the inside of the side wall,  elastically deformable terminal strips, which are shaped accordingly Grooves can be inserted in the tape guide channel.

It is also expedient to ensure the rigidity of the side wall To keep the profile bar in the area of the anchor means larger than on Transition to the bulkhead. On the one hand, this results in a high elasticity in the opening area and on the other hand high Stability and good resilience in the area of Sidewall of the profile bar.

Further features and advantages of the invention result from the following description and the drawings in which before drawn embodiments of the invention with examples are tert. It shows:

Fig. 1 is a device for strapping packages according to the invention in a lateral view,

Fig. 2 is a partial cross-section of Fig. 1 along the line II-II on an enlarged scale,

Fig. 3 shows a detail III of Fig. 1 on an enlarged scale showing the exit of the strapping band from the band channel,

Fig. 4 is a partial cross-section through the subject of FIG. 3,

Fig. 5 shows a cross section through one of the band channel from covering profile strips in an enlarged scale,

Fig. 6 shows a detail VI of Fig. 1 in an enlarged scale, showing the corner configuration of the unveränder present tape guide frame,

Fig. 7 is a Fig. 6 analog representation of the Eckaus formation of a tape guide frame with adjustable in height upper bolt,

Fig. 8 shows the subject of Figure 7 is partial view. In a ver tical cross-section and partly in an inner,

Fig. 9, 10 and 11 different embodiments of profile strips according to the invention and their attachment to the tape guide frame in schematic cross sections.

In the drawings, 10 is a strapping device, which straps a package 11 with a strapping 12 made of plastic. The device 10 has a Bandfüh approximately frame 13 , which consists of two vertical posts 14 and 15 , an upper bar 16 and a tape guide tongue 17 . Under the belt guide frame 13 there is a roller conveyor 18 on which the package 11 resting on a double pallet floor 19 can be moved into the strapping plane.

Laterally next to the strap guide frame 13 , the machine housing 20 is arranged with the strapping unit 21 , which can travel in the direction of arrow 22 from the machine housing 20 against the package 11 and which stretches, closes and cuts off the strap 12 .

To produce a strapping, the strap guide tongue 17 is advanced from the machine housing 20 through the double plate base 19 to the vertical post 15 and the strapping strap 12 from the machine housing 20 in the strap guide frame 13 through the strap guide tongue 17 , the post 15 , the upper bar 16 and the post 14 led around the package 11 and clamped in the strapping unit 21 . The strapping unit 21 then moves with the clamped strap end in the direction of arrow 22 against the package 11 and pulls the following strapping around the strap from the strap channel into the interior 26 of the strap guide frame 13 , the strapping 12 simultaneously applying to the package 11 .

After the complete tensioning and cutting of the strapping band 12 , the strap guide tongue 17 is withdrawn, and the pallet 19 can extend with the strapped package 11 on the roller track 18 from the strapping station 10 .

The posts 14 and 15 , the upper bar 16 and the tape guide tongue 17 have tape guide strips 23 and 24 , which are attached to the support strips 25 and on their inside 26 of the tape guide frame 13 facing sides a cross section that is quite angular and towards the inside of the tape guide frame Have open recess 27 , which forms the band channel 28 . This band channel 28 is covered on its side facing the package 11 by the end walls 29 of two profile strips 30 which are fastened to the side surfaces 31 of the band guide strips 23 and 24 of the band guide frame 13 .

The profile strips 30 , one of which is shown in more detail in FIG. 5, consist of a side wall 32 and an end wall 29 which are at right angles to one another and are made in one piece as an angle profile. On the inside 33 of the side wall 32 , an elastically deformable clamping strip 35 is formed near its free edge 34 , which serves as an anchor medium and can be pressed into a correspondingly shaped groove 36 in the side surface 31 of the band guide strip 23 , so that the inside 33rd the profile bar 30 rests on the side surface 31 of the tape guide strip.

It can be seen from FIG. 2 that the end walls 29 of the two filfiles 30 arranged on the sides of the band guide strips 23 and 24 overlap the free edges 37 and 38 of the band channel 28 and their opposing end faces 39 in the longitudinal central axis 40 of the band channel 28 collide. The end faces 39 and the inner sides 41 of the strap guide strips 23 and 24 are strap contact surfaces, along which the strapping strap slides and which must have a very low sliding coefficient and a high wear resistance. On its inside 41 , the end wall 29 therefore carries, in the illustrated embodiment, wear and sliding elements 42 and 43 which protrude beyond the inside 41 and are embedded in the inside wall 29 . The wear and sliding elements 42 and 43 can have different cross sections, not only be round, as shown in FIG. 5, but they can also have a rectangular cross section or extend over the entire inner side of the end wall. On its end face 39 , or on its free edge, the end wall 29 carries a high-strength plastic wire 43 over its entire length, which is very smooth and gives the edge high wear resistance.

The profile strip 30 consists of a highly elastic plastic, for. B. from a fully cross-linked, thermoplastic elastomer. Although this is not shown in the drawing, both the side wall 32 and the end wall 29 of the profile strip 30 can be reinforced by unidirectionally running or interwoven fibers or threads. Here, the elasticity of the Be tenwand 32 is greater than the elasticity of the end wall 29 , since a metal strip 44 is still embedded in the end wall 29 . It can also be seen that the side wall 32 in the region of the terminal strip 35 and in the vicinity of its free edge 34 has a greater thickness and thus greater dimensional rigidity than in the transition region 45 to the end wall 29 .

The wear and sliding elements 42 and 43 are made of Polyte trafluorethylene (PTFE) or a copolymer for this. They are extruded from one piece at the same time in the manufacture of the profile strip together with the side wall 32 and the end wall 29 , which consist of a slightly different plastic, so that the structure of the two plastics merges with one another and these parts form a firm connection with one another.

It can be seen in particular from FIGS. 2 and 4 that the profile bars 30 are fastened with their anchor means 35 beyond the free edges 37 and 38 and the bottom 46 of the band channel 28 to the strips 23 of the band guide frame 13 . This enables the profiled strips 30 to bend elastically outwards and to allow the strapping band 12 to emerge from the band channel 28 when this is pulled into the interior 26 of the band guide frame 13 during tensioning around the package 11 ( FIGS. 3 and 4).

Turning now to FIGS. 1 and 6 again, it can be seen that are arranged in the corners 47 of the tape guide frame 13, corner pieces 48 on, in which a corner 47 bridging, curv ner or polygonal band channel 28 is arranged, which by accordingly curved profile strips 30 is covered. In order to be able to bend the profile strips 30 easily in the corner area, their side walls 32 are provided with radial incisions 49 starting from the free edge 34 . Since the profiled strips 30 are highly elastic, they can consist of one piece and be guided along the outer surface 50 of the entire band guide frame.

In Figs. 7 and 8, a somewhat different embodiment is shown ge, wherein the tape guide frame 13 has a height-adjustable upper bar 16, which is connected by trained in Customized rer manner corner pieces 51 to the uprights 14 and 15 of the tape guide frame 13. Here, the lower end 51 a of the corner piece 51 is guided in the post 14 with tongues which engage in grooves 52 which are arranged in the bottom 46 of the band channel 28 of the posts 14 and 15 .

It is seen from Fig. 8, in the forming part of the corner piece 51 Moldings are omitted 30, that the free edges 37 and 38, 28 the end walls 29 30 straddle the tape channel at the lower end 51a of the corner 51 of the profile strips to the post 4 so that the strapping coming from the corner piece 51 can enter the band channel 28 of the post 14 .

In order to ensure that the end walls 29 of the profile strips 30 keep the band channel below the transition to the corner piece closed, 16 support strips 53 are attached to the upper end of the corner piece 51 or to the end 16 a of the upper bar 16 which b from the post 14 and at their lower, free ends 53 a carry resiliently mounted sliding plates 54 which slide along the side walls 32 of the profile strips 30 on the outside when the upper bar 16 is raised and lowered and press them against one another, so that the free edges 39 of the end walls Touch 29 and the tape channel is covered.

Although this, as explained above, is not absolutely necessary, are in the embodiment shown in FIGS. 7 and 8 on the corner piece 51 profile strip pieces 55 be fastened, the end walls 29 to the end walls of the on the post 14 and the upper bar 16th attached profile strips 30 range.

It is obvious that the corner pieces 51 , as shown in the embodiment shown in FIG. 6, can also be bent, with the profile strips 55 then being cut at their rear edge 34 accordingly.

In FIGS. 9, 10 and 11, other embodiments of the Pro filleiste are shown approximately at the frame Bandfüh according to the invention and its attachment.

In the embodiment shown in Fig. 9, a profile strip 30 is arranged on only on one side 31 of the tape guide frame and fastened with its side wall 32 . The end wall 29 of this profile strip is so wide, however, that it covers and closes the entire band channel 28 .

The embodiment shown in FIG. 10 corresponds essentially to the embodiment according to FIGS . 2 and 3. In contrast to this previously described embodiment, the profile strips 32 are not clamped on the side surfaces 31 of the band guide strips, but rather around the outer edges 56 and 57 of the tape guide bar around and attached to the outer surface 50 of the tape guide bar 23 . As a result, the elastic bending path of the profile strips is greater when the strapping band 12 is pulled out of the band channel 28 .

The embodiment shown in Fig. 11 shows profile strips 30 , which are similar to the profile strips that are used in the embodiment form of FIGS. 1 to 4. Here, the difference is that the end walls 29 of the profile strips 30 are somewhat shorter, so that they do not collide in the closed state, but have a small distance a from one another.

The invention is not based on the illustrated and described Embodiments limited, but there are several changes rations and additions possible without the scope of the invention leave. For example, the shape and also the mate rial texture of the profile strips may be slightly different. Essential Lich is only that flexibility and resilience of the profile afford is such that when pulling out the strapping bandes a zipper effect in such a way that the Cover formed by the end walls of the profile strips The tape channel opens just a little before the tape is pulled out and closes again as soon as possible behind it, so that the tape channel remains closed for as long as possible and the outline not uncontrolled at different points of the Tape guide frame can emerge. It is also important that the end walls of the profile strips have a high edge at their free edge Have wear resistance, so that they the cutting effect of the Can resist edges of the strapping.

Instead of wearing and sliding elements, the Front wall of the profile strip also on its entire inside be coated with a wear surface, which is then expedient is also led around the free edge of the end wall.

Finally, it is also possible to share the profile strips with others Fasteners, such as screws, rivets or the like to fasten the surfaces of the tape guide frame.

Claims (29)

1. Device for strapping packages, with a tape guide frame, which surrounds the package at a distance and the band channel on its side facing the package has a full-length opening and self-closing cover, which consists of profile strips be on the tape guide frame are attached and have a side wall and an end wall which at least partially overlaps the side of the band channel facing the package at a distance from the channel bottom, characterized in that the profiled strips ( 30 ) consist of a highly elastic material which is at least in the area of the band contact surfaces ( 39 , 41 ) has a low sliding friction value and high wear resistance and that the profile strips ( 30 ) are attached to the belt guide frame ( 13 ) beyond the free edges ( 37 , 38 ) and from the bottom ( 46 ) of the belt channel ( 28 ). 2. Device according to claim 1, characterized in that the profiled strips ( 30 ) are arranged only on one side ( 31 ) of the tape guide frame ( 13 ) and cover the tape channel ( 28 ) over its entire width with its end wall ( 29 ). 3. Apparatus according to claim 1, characterized in that the profile strips ( 30 ) on both sides ( 31 ) of the tape guide frame ( 13 ) are arranged and their end faces ( 39 ) are directed towards each other. 4. Apparatus according to claim 1 or 3, characterized in that the end faces ( 39 ) of the on both Be ten ( 31 ) of the tape guide frame ( 13 ) mutually opposite profiles ( 30 ) abut each other. 5. Apparatus according to claim 1 or 3, characterized in that the free edges ( 39 ) of the end walls ( 29 ) of mutually opposite profile strips ( 30 ) are at a distance (a) from each other. 6. Device according to one of claims 1 to 5, characterized in that the profile strips ( 30 ) on the side surfaces ( 31 ) of the tape guide frame ( 13 ) are attached. 7. Device according to one of claims 1 to 5, characterized in that the profile strips ( 30 ) on the outer surfaces ( 50 ) of the tape guide frame ( 13 ) are attached. 8. Device according to one of claims 1 to 7, characterized in that the profiled strips ( 30 ) with on their inner surface ( 41 ) arranged anchor means ( 35 ) engage in anchor openings ( 36 ) which in the outer surfaces ( 50 ) of the tape guide frame ( 13th ) are arranged. 9. Device according to one of claims 1 to 8, characterized in that the profile strips ( 30 ) have continuous clamping strips ( 35 ) with which they in continuous anchor grooves ( 36 ) in the outer surfaces ( 31 ) of the band guide frame ( 13 ) are trapped. 10. Device according to one of claims 1 to 9, characterized in that in the corners ( 47 ) of the band guide frame ( 13 ) corner pieces ( 48 ) with a corner ( 47 ) bridging, curved or polygonal band channel ( 28 ) are arranged , which is covered by appropriately curved profile strips ( 30 ). 11. The device according to any one of claims 1 to 10, wherein the tape guide frame has a height-adjustable upper bar, in which a tape channel is arranged, which merges into the tape channel of a corner piece fastened to the upper bar, the lower end of which in a vertical post of Band guide frame is guided, characterized in that the side walls ( 37 , 38 ) of the band channel ( 28 ) of each corner piece ( 51 ) extend between the end walls ( 29 ) of the profile strips ( 30 ) attached to the post ( 14 , 15 ) and in that on the upper bar ( 16 ) or on the corner piece ( 51 ) pressure means ( 54 ) are fastened, which press the end walls ( 29 ) of opposing profile strips ( 30 ) of the posts ( 14 or 15 ) below the corner piece ( 51 ). 12. Device according to one of claims 1 to 11, characterized in that the pressure means have resilient sliding plates ( 54 ) which are supported by support strips ( 53 ) which are at a lateral distance (b) from the post ( 14 or 15 ) on Upper bar ( 16 ) or on the corner piece ( 51 ) are attached. 13. Device according to one of claims 1 to 12, characterized in that on the corner piece ( 51 ) profile strips pieces ( 55 ) are attached, the end walls ( 29 ) up to the end walls ( 29 ) of the on the post ( 14 ) and on the upper bar ( 16 ) attached profile strips ( 30 ) are sufficient. 14. Profile strip, in particular for covering the band channel in the band guide frame of a package strapping device, characterized by a side wall ( 32 ) and an end wall ( 29 ) which are at an angle to one another and are made in one piece from a highly elastic material with high flexural strength. 15. Profile strip according to claim 14, characterized net that the highly elastic material is spring steel. 16. Profile strip according to claim 14, characterized net that the highly elastic material is plastic. 17. Profile strip according to claim 14 or 16, characterized ge  indicates that the highly elastic material Is elastomer. 18. Profile strip according to claim 14 or 16, characterized ge indicates that the highly elastic material Is thermoplastic. 19. Profile strip according to one of claims 14 and 16 to 18, characterized in that the highly elastic Material is a partially or fully cross-linked thermoplastic Is elastomer. 20. Profile strip according to one of claims 14 and 16 to 19, characterized in that the side wall ( 32 ) and / or the end wall ( 29 ) are / is reinforced by unidirectionally running or woven fibers or threads. 21. Profile strip according to one of claims 14 to 20, characterized in that the elasticity of the side wall ( 32 ) is greater than the elasticity of the end wall ( 29 ). 22. Profile strip according to one of claims 14 to 21, characterized in that in the end wall ( 29 ) a Me tallstreifen ( 44 ) is embedded. 23. Profile strip according to one of claims 14 to 22, characterized in that the end wall ( 29 ) on its inside ( 41 ) wear and sliding elements ( 42 , 43 ) made of polytetrafluoroethylene (PTFE) or its copolymers. 24. Profile strip according to one of claims 14 to 23, characterized in that the end wall ( 29 ) on its free edge ( 39 ) is designed to be wear-resistant over its entire length. 25. Profile strip according to one of claims 14 to 24, characterized in that the end wall ( 29 ) on its free edge ( 39 ) has a high-strength plastic wire ( 43 ) with a smooth outer surface. 26. Profile strip according to one of claims 14 to 25, characterized in that the high-strength plastic wire ( 43 ) on the free edge ( 39 ) and / or the wear and sliding elements ( 42 ) on the inside ( 41 ) of the end wall ( 29 ) in the manufacture of the profile strip ( 30 ) together with the Be tenwand ( 32 ) and the end wall ( 29 ) are extruded. 27. Profile strip according to one of claims 14 to 26, characterized in that on the side wall ( 32 ) near its free edge ( 34 ) anchor means ( 35 ) are provided. 28. Profile strip according to one of claims 14 to 27, characterized in that the anchor means ( 35 ) on the inside ( 33 ) of the side wall ( 32 ) is molded, elastically deformable clamping strip. 29. Profile strip according to one of claims 14 to 28, characterized in that the stiffness of the side wall ( 32 ) in the region of the anchor means ( 35 ) is greater than at the transition to the end wall ( 29 ).