Metal strip, and method for producing same
Patent Information
- Application Number
- EP2023723167
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2022-05-10
- Filing Date
- 2023-04-26
- Publication Date
- 2025-02-05
AI Technical Summary
Metal strips used in the motor vehicle sector for sealing and decorative purposes require a balance between high tensile strength and flexibility, with through openings that allow for rubber or plastic coating and flexibility, but existing designs struggle to optimize these properties simultaneously.
The metal strip features through openings in two rows that are minimally overlapping or spaced, creating a neutral fiber area with no openings, enhancing tensile strength while maintaining flexibility through strategically placed openings that allow for U-shaped clamping profiles and compressibility.
This design achieves high tensile force and flexibility, enabling the metal strip to conform to various opening contours and tolerances, facilitating easy installation and increased clamping force without the need for on-site gluing or vulcanizing, and can be produced cost-effectively using cutting methods like rotary knife cutting.
Smart Images
Figure 1.1
Abstract
Description
[0001] Metal strip and process for its production
[0002] The present invention relates to a metal strip as an insert for sealing, edge or decorative strips, in particular for motor vehicles, with a plurality of through-openings which follow one another in the direction of the longitudinal extent of the metal strip, in particular periodically, and extend transversely to the longitudinal extent of the metal strip, wherein at least two rows of through-openings which lie next to one another in the direction of the transverse extent of the metal strip and which follow one another in the direction of the longitudinal extent of the metal strip are present, wherein the through-openings of the two rows are arranged alternately offset from one another in the direction of the longitudinal extent of the metal strip, so that the through-openings of the two rows are not arranged at the same height when viewed in the direction of the longitudinal extent of the metal strip, and to a method for producing such a metal strip.
[0003] Such metal strips are used particularly in the automotive sector as inserts for sealing strips used to seal engine compartment, trunk, and door openings. The continuously manufactured metal strips are coated with rubber and / or flexible plastic and have through-holes, among other things to allow the sealing material to penetrate non-adhesive-coated metal strips and thus anchor the rubber or plastic material to the metal strip. The through-holes also serve to customize the flexibility of the metal strip. On the other hand, the metal strip must have a certain tensile strength, as the coating with plastic or rubber material is applied by extrusion, which generates considerable forces along the length of the metal strip.Such metal strips can be bent, before or after being coated with plastic or rubber material, into a mostly U-shaped clamping profile, which is then clamped onto the sealing flanges of the opening. In order to follow the contours of the opening, the clamping profile usually needs to be flexible in both the horizontal and vertical planes. In addition, the clamping profile should be compressible in the longitudinal direction, as the openings to be sealed can have considerable circumferential tolerances and cutting the sealing strip to length on site would be extremely complex. Sealing strips with a compressible clamping profile can be manufactured to the maximum possible length, preferably endless, and compressed to the actual length during installation. These sealing strips therefore do not need to be glued or vulcanized on site, meaning that the sealing strip can also be easily installed by robots.Another requirement of a clamping profile is to exert the greatest possible clamping force.
[0004] The invention is based on the object of providing a metal strip of the type mentioned above that is improved with regard to the aforementioned requirements. In particular, high tensile strength is to be optimally combined with sufficient flexibility and clamping force.
[0005] This object is achieved by a metal strip of the type mentioned at the outset, which is characterized in that the through openings of the two rows overlap at most minimally with each other transversely to the longitudinal extent of the metal strip or at most have a minimal distance from each other.
[0006] Due to the minimal overlap of the through-holes in the two rows, or the minimal distance between the through-holes in the two rows, a kind of neutral fiber is created between the two rows of through-holes, i.e., a closed area of the metal strip extending in the direction of the metal strip's longitudinal extent, in which there are no through-holes. This results in a high tensile force of the metal strip in the direction of its longitudinal extent. Nevertheless, the through-holes allow the desired flexibility of the metal strip to be achieved, particularly for a clamping profile bent into a U-profile.
[0007] The overlap in the transverse direction of the through-openings is preferably 1 mm or less, 0.8 mm or less, 0.5 mm or less, in particular 0.2 mm or less, or 0 mm. This allows good tensile forces to be achieved while maintaining high flexibility of the metal strip.
[0008] The distance in the direction of the transverse extension of the through-holes from each other is preferably 1 mm or less, 0.8 mm or less, 0.5 mm or less, 0.2 mm or less, or 0 mm. This also allows a high tensile force to be achieved with great flexibility at the same time (should one
[0009] According to one embodiment of the invention, the through-openings of at least one of the two rows open into one of the two side edges of the metal strip. These are thus lateral through-openings of the metal strip.
[0010] According to a further embodiment of the invention, the through-openings of at least one of the two rows do not open into either of the two side edges. These through-openings are then located in the central region of the metal strip.
[0011] According to another embodiment of the invention, at least one further row of through-openings can be provided, wherein the through-openings of the at least one further row can open into one of the two side edges of the metal strip or can open into neither of the two side edges of the metal strip. This allows additional side openings or openings to be provided in the central region of the metal strip.
[0012] The through-openings of the at least one further row preferably overlap at most with the through-openings of one of the two rows, whose through-openings overlap at most minimally with each other or are at most minimally spaced from each other. The through-openings of the at least one further row therefore do not extend into the neutral fiber between the through-openings of the two mentioned rows, so that this is maintained. In principle, however, the through-openings of the at least one further row can also overlap with the through-openings of the two rows. This still results in a higher tensile force compared to known metal strips.
[0013] According to a further embodiment of the invention, two or more pairs of rows can be provided, the through-openings of which overlap only minimally or are spaced apart only minimally. This results in two or more so-called neutral fibers, which increase the tensile strength of the metal strip in the direction of its longitudinal extension.
[0014] The through-holes of the metal strip can be arranged symmetrically or asymmetrically relative to the longitudinal center of the metal strip. Asymmetrically designed metal strips exhibit increased flexibility in a preferred bending direction.
[0015] According to a further embodiment of the invention, between each two successive through-openings of an outer row in the direction of the longitudinal extent of the metal strip, whose through-openings open into a side edge of the metal strip, there are each two through-openings of an inner row that do not open into either of the two side edges of the metal strip. As the strip elongates, the through-openings that do not open into either of the two side edges open only half as wide as the through-openings that open into either of the two side edges. This leaves a neutral web between each two through-openings that do not open into a side edge, which limits or prevents constriction of the metal strip transversely to its longitudinal extent.
[0016] The through openings leading into a side edge of the metal strip may overlap with the through openings not leading into a side edge.
[0017] According to a further embodiment of the invention, a row of through-holes is provided in both edge regions of the metal strip, which open into a side edge of the metal strip. Between each two consecutive through-holes in these two rows, two through-holes of a further row are arranged, each of which does not open into a side edge. This allows a symmetrical strip with good properties to be produced.
[0018] According to a further development of this embodiment, the through-openings of these two further rows can form a neutral fiber between them, or there can be another row of through-openings between these two further rows, wherein the through-openings of this further row, viewed in the direction of the longitudinal extent of the metal strip, are preferably located at the level of the through-openings of the two rows present in the edge regions and / or form a neutral fiber between themselves and the through-openings of the two further rows. This results in a further advantageous variation of the metal strip. According to yet another embodiment of the invention, unopened incisions are present between successive through-openings in the direction of the longitudinal extent of the metal strip and opening into one of the two side edges of the metal strip.This allows the flexibility of the band to be further increased without significantly reducing the tensile force of the metal band.
[0019] The metal strip according to the invention can be produced by cutting, in particular by rotary knife cutting, punching, or laser cutting, whereby the strip can be elongated after cutting by rolling and / or drawing. The metal strip can be produced particularly quickly and cost-effectively by rotary cutting, and advantageous properties can be achieved.
[0020] According to a further embodiment of the invention, in which the metal strip is produced by cutting and subsequent lengthening, the lengthening is preferably continued until a rounded shape is formed at the end(s) of the through-holes located inside the strip. The resulting strip is largely similar to a stamped strip, but is simpler and more cost-effective to produce.
[0021] According to a further embodiment of the invention, the through-openings can have an opening width in the direction of the longitudinal extension of the metal strip of 0.8 mm or more, in particular 0.9 mm or more. Due to the relatively large opening width, a relatively lightweight strip is obtained.
[0022] The metal strip preferably has a thickness of 0.3 mm or more. This has proven advantageous for the use mentioned above, in particular in the motor vehicle sector. According to a particularly preferred embodiment of the invention, there are two outer rows of through-openings, each of which opens into one of the two side edges of the metal strip and, viewed in the direction of the longitudinal extent of the metal strip, are arranged in pairs at the same height, wherein there is an inner row of through-openings which do not open into either of the two side edges of the metal strip, and wherein the through-openings of the inner row, viewed in the direction of the longitudinal extent of the metal strip, are each arranged between the paired through-openings of the two outer rows and, at most, overlap minimally with these or, at most, have a minimal distance from them.This results in a particularly cost-effective and stable metal band.
[0023] The distance between the inner ends of a pair of the paired through-openings of the two outer rows is preferably smaller than the sum of the respective distances between the mutually facing ends of the through-openings of the two outer rows and the through-openings of the inner row. This allows a defined predetermined breaking point to be created, which is designed as a weak point that can be broken in a defined manner using a breaking method.
[0024] According to a further development of the invention, the respective distance between the inner ends of the pairs of through-holes of the two outer rows is 5 mm or less, preferably 4 mm or less, more preferably 3.5 mm or less, in particular 3 mm or less, particularly preferably 2 mm or less. The properties of the metal strip can thereby be further improved.
[0025] According to a further development of the invention, the width of the unperforated region between successive through-openings of the two outer rows in the direction of the longitudinal extension of the metal strip is 3 mm or more, preferably 3.5 mm or more, more preferably 4 mm or more, particularly preferably 5 mm or more, in particular 6 mm or more. This also allows the properties of the metal strip to be further improved.
[0026] According to a further development of the invention, the opening width of the through-openings of the two outer rows and / or the inner rows, viewed in the direction of the longitudinal extension of the metal strip, is 0.3 mm or more, preferably 0.5 mm or more, more preferably 0.8 mm or more, particularly preferably 1 mm or more, in particular 1.5 mm or 2 mm or more. This allows the weight of the metal strip to be further advantageously reduced.
[0027] The metal strip according to the invention can be made of steel, stainless steel, or aluminum, or an alloy with steel or an alloy with aluminum. These materials have proven particularly suitable for the metal strips according to the invention.
[0028] A method for producing a metal strip according to the invention is characterized in that the through-openings are produced by cutting, in particular rotary cutting or laser cutting, and subsequent lengthening, in particular rolling and / or drawing, whereby the metal strip is elongated until a rounding occurs at the end(s) of the through-openings located inside the strip. Thus, a metal strip can be produced by cutting that largely corresponds to a stamped metal strip, but is significantly cheaper to produce.
[0029] According to a further development of the method according to the invention, the metal strip is stretched until the through-holes have an opening width in the direction of the longitudinal extension of the metal strip of 0.8 mm or more, preferably 0.9 mm or more. This results in a particularly lightweight metal strip that nevertheless exhibits sufficient stability and tensile strength.
[0030] Embodiments of the invention are illustrated in the drawings and are described below. They show, in schematic representation,
[0031] Fig. 1 to 21 various embodiments of the metal strip according to the invention.
[0032] Fig. 1 shows a first embodiment of the metal strip 1 according to the invention with a plurality of through-openings 2 which are periodically arranged one after the other in the direction of the longitudinal extent I of the metal strip 1 and extend transversely to the longitudinal extent I of the metal strip 1, wherein there are four rows 3 of through-openings 2 which are arranged next to one another in the direction of the transverse extent II of the metal strip 1 and which follow one another in the direction of the longitudinal extent I of the metal strip 1. The four rows 3 comprise two outer rows 3i and 34, the through-openings 2 of which each open into a side edge 4 of the metal strip 1. Between these two outer rows 3i and 34 are arranged two inner rows 32 and 33, the through-openings 2 of which do not open into either of the two side edges 4 of the metal edge 1.Both the through-openings 2 of the two outer rows 3i and 34 and the through-openings 2 of the two inner rows 32 and 3a are arranged alternately offset from one another in the direction of the longitudinal extension I of the metal strip 1, so that these through-openings are not located at the same height when viewed in the direction of the longitudinal extension I of the metal strip 1. However, a through-opening 2 of an inner row 32, 3a that does not open into one of the two side edges 4 of the metal strip 1 is located at the same height when viewed in the direction of the longitudinal extension I of the metal strip 1 as a through-opening 2 of the two outer rows 3i and 34, each of which opens into a side edge 4 of the metal strip 1.According to the invention, the through-openings 2 of the two inner rows 32 and 33 are arranged such that they overlap with one another at most minimally or at most have a minimal distance from one another transversely to the longitudinal extent I of the metal strip 1, so that a so-called neutral fiber 5 is produced between the through-openings 2 of the two inner rows 32 and 3a, which runs in the direction of the longitudinal extent I of the metal strip 1 and is not interrupted by a through-opening 2. In the illustrated embodiment of Fig. 1, both the distance between the respective through-openings 2 of the two inner rows 32 and 3a and their overlap are exactly 0, so that the neutral fiber 5 runs along a straight line in the direction of the longitudinal extent I of the metal strip 1.With minimal overlap of the through-openings 2 of the two inner rows 32 and 3a, a slightly corrugated neutral fiber running in the direction of the longitudinal extent I of the metal strip 1 would result. With minimal spacing between the said through-openings 2 of the two inner rows 32 and 3a, the neutral fiber would have a certain width in the direction transverse to the longitudinal extent I of the metal strip 1. In all cases, however, the neutral fiber 5 results in increased tensile strength of the metal strip 1 compared to conventional metal strips without such a neutral fiber. On the other hand, the flexibility of the metal strip 1 according to the invention with such a neutral fiber 5 is greater than with conventional strips with a wide web in the direction of the longitudinal extent of the metal strip between respective through-openings.
[0033] The overlap of the through-openings 2 with one another is in particular 1 mm or less, 0.8 mm or less, 0.5 mm or less, 0.2 mm or less or exactly 0 mm. The distance between the through-openings 2 from one another is in particular 1 mm or less, 0.8 mm or less, 0.5 mm or less, 0.2 mm or less, in particular 0 mm. The second embodiment of a metal strip 1 according to the invention shown in Fig. 2 largely corresponds to that of Fig. 1. However, the neutral fiber 5 is not located in the longitudinal center of the metal strip 1, but laterally offset therefrom. In contrast to the embodiment in Fig. 1, this is not a symmetrical, but an asymmetrical metal strip 1. The through-openings 2 are also designed asymmetrically in that the through-openings are arranged on the direction shown in Fig.2 left side of the metal strip in the direction of the transverse extension II of the metal strip 1 are shorter than the through openings 2 on the right side of the metal strip 1. Furthermore, in this embodiment, additional, unopened incisions 13 are present. These incisions 13 advantageously increase the flexibility of the metal strip 1 and can also be provided in all other embodiments of the metal strip according to the invention.
[0034] The third embodiment of the invention shown in Fig. 3 largely corresponds to the first embodiment of Fig. 1. In contrast to the embodiment of Fig. 1, however, two through-openings 2 of the two inner rows 32 and 3a are arranged between each two successive through-openings 2 of the two outer rows 3i and 34 in the direction of the longitudinal extent I of the metal strip 1. This results in a web 6 extending in the direction of the transverse extent II of the metal strip 1 between each two successive through-openings 2 of the two inner rows 32 and 3a in the direction of the longitudinal extent I of the metal strip 1. This web 6 prevents constriction in the direction of the transverse extent II of the metal strip 1 when the metal strip 1 is lengthened.
[0035] The embodiment of Fig. 4 largely corresponds to the embodiment of Fig. 3. In contrast, however, the metal strip 1 of the embodiment of Fig. 4 is not symmetrical, but asymmetrical, in that the neutral fiber 5 runs laterally offset to the central longitudinal plane of the metal strip 1.
[0036] The embodiment of Fig. 5 differs from that of Fig. 1 essentially in that the through openings 2 have different lengths in the direction of the transverse extension II of the metal strip 1, namely the through openings 2 of the two outer rows 3i and 34 are shorter than the embodiment of Fig. 1 and the through openings 2 of the two inner rows 32 and 3a are longer than the embodiment of Fig. 1.
[0037] The embodiment of Fig. 6 also differs only slightly from the embodiment of Fig. 1 . Here, the lengths of the through openings 2 of the two outer rows 3i and 34 are greater than those of the embodiment of Fig. 1 and the lengths of the through openings 2 of the two inner rows 32 and 3a are shorter than those of the embodiment of Fig. 1.
[0038] In the embodiment of Fig. 7, only three rows of through-openings 2 are present, namely two outer rows 3i and 34 and one inner row 32. Between the through-openings 2 of the two outer rows 3i and 34 and the through-openings 2 of the inner row 32, a neutral fiber 5 runs.
[0039] The embodiment of Fig. 8 has five rows of through-openings 2, namely two outer rows 3i and 34 and three inner rows 32, 3a, and 3s. A neutral fiber 5 is located between each two adjacent rows 3, thus a total of four neutral fibers 5. The through-openings 2 of the two outer rows 3i and 34 are each located at the height of a through-opening 2 of the inner row 3s, viewed in the direction of the longitudinal extension I of the metal strip 1. The metal strip 1 of Fig. 8 also has further through-openings 7 and 8, namely further through-openings 7, which each open into a side edge 4 of the metal strip 1 and are arranged between two through-openings 2 of the two outer rows 3i and 34, as well as further through-openings 8, which do not open into either of the two side edges 4 of the metal strip 1 and are arranged between two through-openings 2 of the inner row 3s.The through openings 7 and 8 are each located at the same height when viewed in the direction of the longitudinal extension I of the metal strip 1.
[0040] The embodiment of Fig. 9 also has five rows of through-openings 2, namely two outer rows 3i and 34 and three inner rows 32, 33 and 3s. Between each two successive through-openings 2 of the two outer rows 3i and 34 in the direction of the longitudinal extension I of the metal strip 1, there are two through-openings 2 of the two adjacent inner rows 32 and 3a. The through-openings 2 of the inner row 3s are each located at the level of a through-opening 2 of the two outer rows 3i and 34, viewed in the direction of the longitudinal extension I of the metal strip 1. A neutral fiber 5 is located between each of the through-openings 2 of the middle row 3s and the two adjacent rows 32, 3a.
[0041] The embodiment of Fig. 10 largely corresponds to that of Fig. 9. It also has five rows of through-openings 2, although, in contrast to the embodiment of Fig. 9, only one through-opening 2 of the adjacent row 32 or 3a is arranged between two through-openings 2 of the two outer rows 3i and 34 which follow one another in the direction of the longitudinal extension I of the metal strip 1.
[0042] In the embodiment of Fig. 11, three rows of through-openings 2 are present, namely two outer rows 3i and 34 and one inner row 32. The through-openings 2 of the two outer rows 3i and 34 do not overlap with the through-openings 2 of the inner row 32 in the direction of the transverse extension II of the metal strip 1 and are not spaced apart from one another in this direction. However, a minimal overlap or spacing would be possible. In this respect, the strip essentially corresponds to the metal strip of Fig. 7.However, additional through-openings 9 and 10 are present, namely, in the direction of the transverse extension II of the metal strip 1, short through-openings 9 between each two through-openings 2 of the two outer rows 3i and 34, which open into a side edge 4 of the metal strip 1, as well as two through-openings 10 lying next to each other in the direction of the transverse extension II of the metal strip 1 between each two through-openings 2 of the middle row 32. These through-openings 10 overlap in the direction of the transverse extension II of the metal strip 1 with each through-opening 2 of the two outer rows 3i and 34. In this respect, there is no continuous neutral fiber in the direction of the longitudinal extension I of the metal strip 1.Nevertheless, the tensile strength of this band is also increased compared to conventional bands because the through openings 2 of the two outer rows 3i and 34 do not overlap with the through openings 2 of the inner row 32.
[0043] Fig. 12 shows a variant similar to Fig. 7, but with additional through openings 7, and Fig. 13 shows a variant similar to Fig. 10, but with webs 6 between each two through openings 2 of the middle row 3s.
[0044] 14 to 19 show metal strips according to the invention in various embodiments, in which the metal strip was produced by cutting and subsequent lengthening, wherein the lengthening was carried out until a rounding results at the end or ends 11 of the through-openings located inside the strip. The metal strip 1 of Fig. 14 has two outer rows 3i and 34 and an inner row 3s of through-openings 2. The metal strip of Fig. 15 has five inner rows 3s of through-openings 2, wherein the through-openings 2 of adjacent rows 3s do not overlap with one another when viewed transversely to the longitudinal extent of the metal strip 1. The through-openings 2 of the aforementioned rows 3s have a rounding at their two inner ends 2. The same applies to the inner ends 11 of the further through-openings 7.A rolling track 12 can be seen between the further through openings 7 and the through openings 2 of the adjacent inner rows 3s.
[0045] The metal strip of Fig. 16 largely corresponds to the metal strip of Fig. 15. However, there is no rolling track between the further through openings 7 and the through openings 2 of the respective adjacent inner row 3s.
[0046] The metal strip of Fig. 17 has six inner rows 3s of through-openings 2, the two inner ends 11 of which each have a rounded portion. Furthermore, the metal strip of Fig. 17 has further through-openings 7 on one side, which open into an edge 4 of the metal strip 1. A rolling track 12 is present between these through-openings 7 and the through-openings 2 of the adjacent inner row 3s. Likewise, a rolling track 12 is present between the third and fourth inner row 3s of through-openings 2. Finally, a rolling track 12 is provided on the side of the metal strip facing away from the further through-openings 7.
[0047] The metal strip of Fig. 18 largely corresponds to the metal strip of Fig. 17. However, there are eight inner rows 3s. Between the further through-openings 7 and the adjacent row 3s of through-openings 2, there is again a rolling track 12, as well as on the side of the metal strip 1 facing away from the further through-openings 7. The metal strip of Fig. 19 has eleven inner rows 3s of through-openings 2, as well as a row of further through-openings 7 that open into an edge 4 of the metal strip. This metal strip has no rolling tracks 12.
[0048] The metal band 1 of Fig. 20 largely corresponds to the metal band 1 of Fig.
[0049] 17. The metal strip 1 of Fig. 20 simply has no additional through-openings 7, but is bordered on both side edges 4 by a rolling track 12.
[0050] The metal band 1 of Fig. 21 largely corresponds to the metal band 1 of Fig.
[0051] 18. The metal strip 1 of Fig. 21 simply has no additional through-openings 7, but is bordered on both side edges 4 by a rolling track 12.
[0052] List of reference symbols
[0053] 1 metal band
[0054] 2 passage opening
[0055] 3 row
[0056] 3i outer row
[0057] 32 inner row
[0058] 33 inner row
[0059] 34 outer row
[0060] 3s inner row
[0061] 4 margin of 1
[0062] 5 neutral fiber
[0063] 6 bridge
[0064] 7 passage opening
[0065] 8 passage opening
[0066] 9 Passage opening
[0067] 10 passage opening
[0068] 11 inner end of 2
[0069] 12 rolling tracks
[0070] 13 Notch a Distance b Distance w Opening width
[0071] B Width
[0072] I Longitudinal extension of 1
[0073] II Transverse extension of 1
[0074] III Longitudinal center of 1
[0075] IV Marginal area of 1
Claims
Claims: Metal strip (1) as an insert for sealing, edge or decorative strips, in particular for motor vehicles, with a plurality of through openings (2) extending transversely to the longitudinal extent (I) of the metal strip (1), in particular periodically, successively in the direction of the longitudinal extent (I) of the metal strip (1), wherein at least two adjacent rows (32, 3s) of successive through openings (2) in the direction of the longitudinal extent (I) of the metal strip (1) are provided, wherein the through openings (2) of the two rows (32, 3s) are arranged alternately offset from each other in the direction of the longitudinal extent (I) of the metal strip (1), so that the through openings (2) of the two rows (32, 3s) are not on the same are arranged at a height, characterized in that the through-openings (2) of the two rows (32,3s) transversely to the longitudinal extent (I) of the metal strip (1) overlap each other only minimally or have a minimal distance from each other. Metal strip (1) according to claim 1, characterized in that the overlap of the through-openings (2) with each other is 1 mm or less, 0.8 mm or less, 0.5 mm or less, 0.2 mm or less or 0 mm. Metal strip (1) according to claim 1 or 2, characterized in that the distance between the through-openings (2) is 1 mm or less, 0.8 mm or less, 0.5 mm or less, 0.2 mm or less, or 0 mm. Metal strip (1) according to any one of the preceding claims, characterized in that the through-openings (2) of at least one of the two rows (3i, 34) open into one of the two side edges (4) of the metal strip (1). Metal strip (1) according to any one of the preceding claims, characterized in that the through-openings (2) of at least one of the two rows (32, 3s) do not open into either of the two side edges (4) of the metal strip (1). Metal strip (1) according to any one of the preceding claims, characterized in that at least one further row (3) of through-openings (2) is present. Metal strip (1) according to claim 6, characterized in that the through-openings (2) of at least one further row (3i, 34) open into one of the two side edges (4) of the metal strip (1).Metal strip (1) according to claim 6 or 7, characterized in that the through-openings of at least one further row (3s) do not open into either of the two side edges (4) of the metal strip (1). Metal strip (1) according to any one of claims 6 to 8, characterized in that. The through-openings (2) of the further row or rows (3) overlap maximally with the through-openings (2) of one of the two rows (3), whose through-openings overlap only minimally or have only a minimal distance from each other.
0. Metal strip (1) according to one of the preceding claims, characterized in that two or more pairs of rows (3) with through-openings (2) arranged in such a way that they overlap only minimally or have only a minimal distance from each other are present.
1. Metal strip (1) according to one of the preceding claims, characterized in that the through-openings (2) are arranged symmetrically with respect to the longitudinal center (III) of the metal strip (1).
2. Metal strip (1) according to one of claims 1 to 10, characterized in that the through-openings (2) are arranged asymmetrically with respect to the longitudinal center (III) of the metal strip (1). 3.Metal strip (1 ) according to one of the preceding claims, characterized in that between each pair of successive through openings (2) of an outer row (3i, 34) in the direction of the longitudinal extension (I) of the metal strip (1 ), the through openings (2) of which open into a side edge (4) of the metal strip (1 ), there are each pair of through openings (2) of an inner row (32, 3s) which do not open into one of the two side edges (4) of the metal strip (1 ). Metal strip (1) according to claim 13, characterized in that in both edge regions (IV) of the metal strip (1) an outer row (3i, 34) with through openings (2) is provided, which open into a side edge (4) of the metal strip (1), wherein between each pair of successive through openings (2) of these two rows (3i, 34) two through openings (2) of each of a further inner row (32, 3s) are arranged, wherein the through openings (2) of these two inner rows (32, 3s) do not open into a side edge (4) of the metal strip (1). Metal strip (1) according to claim 14, characterized in that the through openings (2) of the two inner rows (32, 3s) form a neutral fiber (5) between them.Metal strip (1) according to claim 14, characterized in that a middle row (3s) of successive through-openings (2) in the direction of the longitudinal extent (I) of the metal strip (1) is provided between the two inner rows (32, 3s), wherein a neutral fiber (5) is formed between the middle row (3s) and the two inner rows (32, 3s). Metal strip (1) according to any one of the preceding claims, characterized in that further through-openings (7, 8) are provided, wherein the further through-openings (7, 8) open into a side edge (4) or into no side edge (4) of the metal strip (1), wherein the further through-openings (7, 8) extend in the direction of the longitudinal extent (I) of the metal strip (1). The metal strip (1) according to one of the preceding claims is characterized in that unopened incisions (13) are present between successive through-openings (2) in the direction of the longitudinal extension (I) of the metal strip (1) and opening into one of the two side edges (4) of the metal strip (1). The metal strip (1) according to one of the preceding claims is characterized in that the metal strip (1) is produced by punching, cutting, in particular rotary knife cutting or laser cutting, and preferably subsequent lengthening by rolling and / or drawing.Metal strip (1) according to claim 19, characterized in that the metal strip (1) is produced by cutting and subsequent lengthening, the lengthening being carried out until a rounded shape is formed at the end(s) (1 1 ) of the through-openings (2) located inside the strip. Metal strip (1) according to any of the preceding claims, characterized in that the through-openings (2) have an opening width (w) in the direction of the longitudinal extent (I) of the metal strip (1) of 0.8 mm or more, in particular 0.9 mm or more.
22. Metal strip (1 ) according to one of the preceding claims, characterized in that the metal strip (1 ) has a thickness of 0.3 mm or more.
23. Metal strip (1 ) according to one of the preceding claims, characterized in that two outer rows (3i, 34) of through openings (2) are provided, each opening into one of the two side edges (4) of the metal strip (1 ) and arranged in pairs at the same height when viewed in the direction of the longitudinal extent (I) of the metal strip (1 ), and that an inner row (3s) of through openings (2) is provided, which do not open into either of the two side edges (4) of the metal strip (1 ), wherein the through openings (2) of the inner row (3s) are arranged between the paired through openings (2) of the two outer rows (3i, 34) when viewed in the direction of the longitudinal extent (I) of the metal strip and may overlap them minimally or may have a minimal distance from them.
24. Metal strip (1 ) according to claim 23, characterized in that the distance (a) of the ends (1 1 ) on the inside of the strip of a pair of the paired through-openings (2) of the two outer rows (3i , 34) from each other is smaller than the sum of the respective distances (b) of the ends (1 1 ) facing each other of the through-openings (2) of the two outer rows (3i, 34) and of the through-openings (2) of the inner row (3s) to each other.
25. Metal band (1) according to claim 23 or 24, characterized in that the respective distance (a) between the ends (11) of the pairs of through openings (2) of the two outer rows (3i, 34) on the inside of the band is 5 mm or less, preferably 4 mm or less, more preferably 3.5 mm or less, in particular 3 mm or less, in particular preferably 2 mm or less.
26. Metal strip (1 ) according to one of claims 23 to 25, characterized in that the width (B) of the unperforated area between successive through-openings (2) of the two outer rows (3i, 34) in the direction of the longitudinal extension (I) of the metal strip (1 ) is 3 mm or more, preferably 3.5 mm or more, more preferably 4 mm or more, particularly preferably 5 mm or more, in particular 6 mm or more.
27. Metal strip (1 ) according to one of claims 23 to 26, characterized in that the opening width (w) of the through openings (2) of the two outer rows (3i, 34) and / or the inner row (3s) in the direction of the longitudinal extension (I) of the metal strip (1 ) is 0.3 mm or more, preferably 0.5 mm or more, more preferably 0.8 mm or more, particularly preferably 1 mm or more, in particular 1.5 mm or more or 2 mm or more.
28. Metal strip (1 ) according to one of the preceding claims, characterized in that the metal strip (1 ) consists of steel, stainless steel or aluminium or an alloy with steel or aluminium. Method for producing a metal strip (1) as an insert for sealing, edge or decorative strips, in particular for motor vehicles, with a plurality of through openings (2) extending transversely to the longitudinal extent (I) of the metal strip (1), in particular periodically, in the direction of the longitudinal extent (I) of the metal strip (1), wherein at least two adjacent rows (32, 3s) of successive through openings (2) in the direction of the longitudinal extent (I) of the metal strip (1) are provided, wherein the through openings (2) of the two rows (32, 3s) are arranged alternately offset from each other in the direction of the longitudinal extent (I) of the metal strip (1), such that the through openings (2) of the two rows (32, 3s) in the direction of the longitudinal extent (I) of the metal strip (1) are not arranged at the same height, with the through openings (2) of the two rows (32,3s) transversely to the longitudinal extent (I) of the metal strip (1) overlap each other only minimally or have a minimal distance from each other, characterized in that the through-openings (2) are produced by cutting, in particular rotary cutting or laser cutting, and subsequent lengthening, in particular rolling and / or drawing, wherein the metal strip (1) is lengthened until a rounded shape is obtained at the end(s) (11) of the through-openings (2) located inside the strip. Method according to claim 29, characterized in that the metal strip (1) is lengthened until the through-openings (2) have an opening width (w) in the direction of the longitudinal extent (I), of the metal strip (1) of 0.8 mm or more, preferably 0.9 mm or more.