Vehicle weatherstrip and method of producing same

Abstract

The invention relates to a sealing strip for a vehicle, the sealing strip comprising: - a first part made by double injection, - a second part made by co-extrusion, wherein the first part comprises a first curved portion resulting from the double injection, wherein the second part comprises a second curved portion obtained by curving the second part after co-extrusion, the second curved portion comprising at least one slot to facilitate the curving without creating cracks or breaks.

Description

Technical Field

[0001] This invention relates to a sealing strip for vehicles and a method for producing the sealing strip. Background Technology

[0002] A sealing strip for a vehicle is a strip intended to provide a seal, such as for water and dust resistance. The strip is carried by a first element and is intended to engage in a sealing manner with at least one other element, such as a fixed or movable window of the vehicle, to prevent water and dust from entering between the two elements.

[0003] Figure 1a shows the side door 10 of a vehicle, particularly the front side door of the vehicle.

[0004] The door 10 includes a lower frame 12 and an upper frame 14. The upper frame 14 is generally U-shaped and defines a space enclosed by the window glass 16 together with the frame 12.

[0005] The window glass 16 is movable and can be moved from a high position occupying the space of the frame 14 to a low position where it is housed within the frame 12.

[0006] The door 10 includes a sealing strip 18 carried by a lower frame 12, which is intended to cooperate with the window glass 16 to provide a seal between the window 16 and the frame 12.

[0007] Sealing strip 18 is, for example, an outer strip (or outer waistline) sealing strip.

[0008] The sealing strip 18 has an elongated shape along a first axis X, which is a horizontal axis extending from the front to the rear of the vehicle. Therefore, the sealing strip 18 is substantially horizontal. In the XYZ coordinate system, axis Y is a transverse axis extending from one side of the vehicle to the opposite side, and axis Z is a vertical axis extending from the bottom to the top.

[0009] In most cases, the sealing strip 18 is straight and is fairly easy to produce by co-extrusion, double injection, or co-injection.

[0010] Figure 3a shows, for example, a sealing strip 18 produced entirely by co-extrusion. The sealing strip 18 is made from a single part integrally formed with at least two different materials A and B.

[0011] For example, Figure 3b shows a sealing strip 18 produced entirely by double injection molding. The sealing strip 18 is made from a single part that is integrally molded with at least two different materials A and B.

[0012] However, depending on the design of the sealing strip 18, it is not always possible to produce the sealing strip 18 solely through double injection or co-extrusion. For example... Figure 2As shown in Figure 3c, one solution is to produce the first portion 18a of the sealing strip 18 by double injection, produce the second portion 18b of the sealing strip 18 by co-extrusion, and then fix the first portion and the second portion 18a, 18b together.

[0013] The first part 18a, produced by double injection, can have any shape produced by double injection. In fact, the shape of the first part 18a depends on the shape of the mold (especially the cavity of the mold), so the mold is designed and selected according to the desired shape of the first part 18a.

[0014] Conversely, the second part 18a, produced by co-extrusion, necessarily has a straight shape because it is produced by extrusion through an extrusion die.

[0015] As shown in Figures 1a and 1b, the sealing strip 18 is not necessarily a perfectly straight line and may include a curved portion 20 to conform, for example, to the shape of the upper edge of the frame 12.

[0016] When the sealing strip 18 is entirely produced by co-injection, this curved portion 20 can be produced from a two-injection process by selecting a suitable mold as described above. However, such a curved portion 20 cannot be produced from a co-extrusion process. Therefore, when it is necessary to... Figure 2 In the case of producing the sealing strip 18 in two parts 18a and 18b as shown in Figure 3c, it is necessary to facilitate the production and fixing of the two parts 18a and 18b. For example, when producing the sealing strip 18, if the co-extruded second part 18b is bent to take the shape of the first part 18a, there is a risk of breakage or cracking.

[0017] This invention proposes a solution to this technical problem that is simple, effective, and economical. Summary of the Invention

[0018] The present invention provides a sealing strip for vehicles according to claim 1.

[0019] The sealing strip includes: - A first portion, having at least partially an elongated shape along a first axis and formed by double injection molding, the first portion comprising a first plate parallel to the first axis, the first plate being made of a first material, the first portion comprising at least one member made of a second material softer than the first material, and double-injected with the first material during the double injection molding process, the first plate having a first connecting surface. - A second portion, which has at least partially an elongated shape along the first axis and is formed by co-extrusion, the second portion comprising a second plate parallel to the first axis, the second plate being made of a third material, the second portion comprising at least one lip being made of a fourth material softer than the third material and being co-extruded with the third material during the co-extrusion, the second plate having a second connecting surface that is applied to and secured to the first connecting surface. The first portion includes a first curved portion around a second axis perpendicular to the first axis and the first and second connecting surfaces, the first curved portion having a curved shape produced by the dual injection, wherein the second portion includes a second curved portion around the second axis, the second portion having a straight shape produced by the co-extrusion and subsequently bent to form the second curved portion, the second curved portion including at least one slot formed in the second plate, the at least one slot extending from a first longitudinal edge of the second plate toward a second longitudinal edge of the second plate, the first longitudinal edge and the second longitudinal edge being at least partially parallel and at least partially extending along the first axis, and the second longitudinal edge being located between the first longitudinal edge and the second axis.

[0020] Implement one or more slots in the second part to facilitate bending of the second part and avoid any cracks or fractures, and to avoid the use of more expensive secondary processes such as thermoforming or stretch bending. The one or more slots do help to make the second part more flexible and allow it to bend without inducing stresses in the second part that could lead to cracks or fractures.

[0021] Furthermore, the slot is located within the area of ​​the sealing strip, which is concealed when the sealing strip is installed in a vehicle. Therefore, the slot does not affect the aesthetic appearance of the sealing strip.

[0022] The sealing strip according to the present invention may include one or more of the following features, which may be independent of each other or in combination with each other: - The height of the at least one slot is greater than 30% of the total height of the second plate, the total height being measured between the first longitudinal edge and the second longitudinal edge; -- The height of the at least one slot is greater than 50% or 80% of the total height of the second plate, or equal to 50% or 80% of the total height of the second plate; -- The height of the at least one slot is less than 90% or 80% of the total height of the second plate, or equal to 90% or 80% of the total height of the second plate; -- The at least one slot is a straight slot; - The at least one slot is a keyhole-shaped slot; -- The shape of the at least one slot is such as serrated, curved, or any shape to prevent tearing during bending; other designs, such as a rectangular shape with rounded corners, may also work. - The at least one slot includes a plurality of slots spaced apart from each other along the first axis; -- These slots are spaced regularly or irregularly along the first axis; - The plurality of slots includes more than 2 or 3 slots; -- The number of slots is greater than or equal to 5 or 8; - The first plate includes at least one indexing protrusion that protrudes from the first connection surface and passes through at least one opening in the second plate; - The at least one opening is a hole located away from the first longitudinal edge and the second longitudinal edge; - The at least one indexing protrusion includes two or more indexing protrusions distributed along the first axis; - The at least one opening is U-shaped or V-shaped and extends from the first longitudinal edge; -- The second plate is fixed to the first plate by welding, bonding or any other attachment process; -- The second plate is fixed to the first plate by welding points or solder balls; -- The at least one slot includes a plurality of slots, and at least some of the welding points or weld beads are located between two adjacent slots in the plurality of slots; - The first longitudinal edge is adapted to abut against the first ridge of the first plate, and / or the second longitudinal edge is adapted to abut against the second ridge of the first plate; - The second part includes a slip coating located on the at least one lip and made of a fifth material, which is co-extruded with the third and fourth materials during the co-extrusion; -- The width of the at least one slot is at least one millimeter (+ / -10%), and the width is measured along the first axis; -- The height of the slot is at least five millimeters (+ / -10%), preferably ten millimeters (+ / -10%). -- The first material is or includes polypropylene (PP), and may include additives such as talc, fibers, such as glass fiber, etc. -- The third material is or includes thermoplastics, such as polypropylene (PP), and may further include TPV and / or TPES. The third material may further include additives, such as talc, fibers, such as glass fiber, etc. -- The first and third materials are the same or similar; they may include the same basic components, such as polypropylene (PP), and may differ from each other through their additives, viscosity, etc. -- The second material is or includes TPV, TPS, and may include additives such as talc, fibers such as glass fiber, etc. -- The fourth material is or includes TPV, TPS, and may include additives such as talc, fibers, such as glass fiber, etc. -- The second and fourth materials are the same or similar; they may include the same basic components, such as polypropylene (PP), and may differ from each other through their additives, viscosity, etc. -- The second part includes flocked tape; -- The flocking tape is applied during the co-extrusion step; -- The flocked tape is located on at least one lip of the second part. -- The slip layer is or includes PP, PEHD, PUHD or TPE; -- The sealing strip further includes a longitudinal cap that is fastened to at least one lip of the first portion; -- The at least one lip edge includes a sealed lip edge and / or a lip edge with an aesthetically pleasing appearance; -- The connecting surface is located between the first ridge and the second ridge; -- The first ridge is a longitudinal ridge that extends continuously or discretely along the first axis; -- The second ridge is a partial or discrete ridge, or includes partial or discrete ridges.

[0023] The present invention further relates to a method for producing a sealing strip as described above, wherein the method includes the following steps: a) Producing the first portion via the dual injection method. b) Producing the second part by the co-extrusion. c) The slot is provided on the second plate. d) Bending the second plate about the second axis and applying the second plate onto the first plate, and e) Attach the second plate to the first plate.

[0024] The method according to the invention may include one or more of the following features and / or steps, which may be independent of or combined with each other: - The slot in step c) is formed by stamping, drilling or cutting the second plate; - The bending in step d) is performed at an angle including the range of [2°, 50°]; -- This range is [5°, 40°]; - The bending in step d) is performed with a radius including the range of [50mm, 1000mm]; -- This range is [100mm, 300mm]; - The method includes engaging at least one indexing protrusion located on the first connecting surface into an opening in the second plate during step d); -- The engagement is performed by moving the first portion to the second portion along the second axis; - The method includes, during step d), the first longitudinal edge abutting against a first ridge of the first plate, and / or the second longitudinal edge abutting against a second ridge of the first plate; - The method includes step i) between steps d) and e): holding the second plate on the first plate by clamping; - The second part is sized to be oversized at the end of step b) to include an additional end, and the second part is cut during step c) to remove the additional end; -- The fixing described in step e) is performed by welding, bonding or any other attachment process; -- The welding is preferably performed by ultrasonic spot welding or vibration welding. Attached Figure Description

[0025] The invention will be better understood by reading the following description, which is given by way of non-limiting example and with reference to the accompanying drawings, and other details, features and advantages of the invention will become apparent from the drawings: Figures 1a and 1b are schematic diagrams of the side door of a vehicle, which carries a sealing strip according to the invention. Figure 2 This is a cross-sectional schematic diagram of the sealing strip according to the present invention. Figures 3a to 3c are cross-sectional schematic diagrams of various sealing strips. The sealing strip in Figure 3c includes strips fixed together to produce... Figure 2 The sealing strip has two parts. Figure 4 This is a partial and three-dimensional schematic diagram of the sealing strip according to the first embodiment of the present invention. Figure 5 yes Figure 4 An enlarged schematic diagram of the sealing strip. Figure 6 It is shown Figure 4 A schematic diagram of the narrow groove of the sealing strip. Figure 7 This is a cross-sectional schematic diagram of a sealing strip according to another embodiment of the present invention. Figure 8 yes Figure 7 Partial and three-dimensional schematic diagrams of the sealing strip, and Figure 9 yes Figure 7 An enlarged view of one part of the sealing strip before it is fastened to another part. Detailed Implementation

[0026] Figures 1a and 1b show a vehicle door 10 that may be equipped with a sealing strip 18 according to the invention.

[0027] Figure 2 Figure 3c and Figures 4 to 6 A first embodiment of the sealing strip 18 is shown. Figures 7 to 9 A second embodiment of the sealing strip 18 is shown.

[0028] The sealing strip 18 is made of two parts 18a and 18b fixed together. One of these parts is called the first part 18a and is produced by double injection. The other part is called the second part 18b and is produced by co-extrusion.

[0029] The first part and the second parts 18a and 18b are both elongated along a first axis, which is the longitudinal axis of the sealing strip 18 and is the axis X in the coordinate system of Figure 1a.

[0030] like Figure 2 As best shown in Figure 3c, the first part 18a includes a first plate 22 parallel to the axis X and made of a first material A.

[0031] The first part 18a further includes at least one component 40, which is made of a second material B that is softer than the first material A.

[0032] The component 40 may be a lip or may include a lip. The component can bear, for example... Figure 2 The vertical cap 42 is shown by the dashed line.

[0033] The first material A may be or may include polypropylene (PP), and may further include additives such as talc, fibers, such as glass fiber.

[0034] The second material B can be or may include TPV, TPS, and may further include additives such as talc, fibers, such as glass fiber.

[0035] The first material and the second materials A and B are double-injected in a double-injection process used to produce the first part 18a.

[0036] Dual injection means that two injection steps occur sequentially during this process, one after the other. One material, such as material A, is injected into the mold, and another material, such as material B, is injected into the mold. The mold can be fitted after the first injection and before the second injection.

[0037] The first plate 22 has two opposing surfaces 22a and 22b. Surface 22a is a first connecting surface for connecting and securing the first part 18a to the second part 18b. The member 40 can be connected to at least one of surfaces 22a and 22b as shown in the figure.

[0038] Part 28b includes a second plate 24 parallel to axis X and made of a third material C.

[0039] The second part 18b further includes at least one lip 34, such as a sealed lip or a lip with an aesthetic appearance, which is made of a fourth material D that is softer than the third material C.

[0040] The third material C may be or may include thermoplastics, such as polypropylene (PP), and may further include TPV and / or TPES. The third material C may further include additives, such as talc, fibers, such as glass fiber, etc.

[0041] The first material and the third material, A and C, can be the same or similar. They can include the same basic components, such as polypropylene (PP), and can differ from each other through their additives, viscosity, etc.

[0042] The fourth material D can be or may include TPV, TPS, and may further include additives, such as talc, fibers, such as glass fiber, etc.

[0043] The second and fourth materials, B and D, can be the same or similar. They may include the same basic components, such as TPV or TPS, and may differ from each other through their additives, viscosity, etc.

[0044] The third and fourth materials, C and D, are co-extruded in the co-extrusion process.

[0045] Co-extrusion means that the third and fourth materials, C and D, are both extruded from the extrusion die.

[0046] The second plate 24 has two opposing surfaces 24a and 24b. Surface 24a is a second connecting surface used to connect and fasten the second part 18b to the first part 18a. The lip 34 can be connected to surface 24b as shown in the figure.

[0047] Part 2 18b may include flocking tape 36. More specifically, the lip 34 may be at least partially covered with flocking material, such as flocking tape 36.

[0048] The flocked tape 36 can be applied to the lip 34 during a co-extrusion process, for example, when the second part 18b is extruded from the extrusion die.

[0049] Part 18b may include a slip coating 38. The slip coating 38 is located, for example, on the at least one lip 34. The slip coating 38 is preferably made of a fifth material E.

[0050] The fifth material E can be co-extruded with the third and fourth materials C and D in the co-extrusion process.

[0051] The slip coating 38 may be or may include PP, PEHD, PUHD or TPE.

[0052] The second plate 24 further includes two opposing longitudinal edges 24c, 24d. The two edges 24c, 24d are at least partially parallel and extend at least partially along the axis X. One of these longitudinal edges is referred to as the first longitudinal edge 24c, and in the illustrated example is the lower longitudinal edge. The other of these longitudinal edges is referred to as the second longitudinal edge 24d, and in this example is the upper longitudinal edge.

[0053] As shown in the figure, the lip 26 can be connected to the second plate 24 near the second longitudinal edge 24d.

[0054] The first longitudinal edge 24c may be adapted to abut against the first ridge 22c of the first plate 22, and / or the second longitudinal edge 24d may be adapted to abut against the second ridge 22d of the first plate 22. The abutment of (one or more) edges 24c, 24d against (one or more) ridges 22c, 22d may help to accurately position the plates 22, 24 together.

[0055] In the example shown, we can see that surface 22a is defined by the ridges 22c and 22d extending below and above surface 22a. In other words, surface 22a is located between ridges 22c and 22d.

[0056] Ridges 22c and 22d may be longitudinal ridges and may extend continuously along the axis X. In variations, ridges 22c and 22d may each be a local or discrete ridge, or may include local or discrete ridges.

[0057] As shown in Figures 1a to 1b and Figures 4 to 5 As shown, the first portion 18a includes a first curved portion 20a around a second axis W, which is perpendicular to the axis X and can be considered as an axis parallel to the transverse axis Y in the coordinate system of FIG1.

[0058] The axis W is also perpendicular to the first connecting surface and the second connecting surfaces 22a and 24a.

[0059] The first curved portion 20a has a curved shape produced by the dual injection process as described above.

[0060] The second portion 18b includes a second curved portion 20b surrounding the axis W.

[0061] However, the second portion 18b has a straight shape produced by the co-extrusion process. Therefore, the second portion 18b must then be bent (once co-extruded) to form the second bent portion 20b.

[0062] According to the invention, the second bent portion 20b includes at least one slot 26 formed in the second plate 24 to make the plate more flexible and to allow the plate and the second portion 18b to be bent more easily without cracking or breaking.

[0063] The slot 26 can be formed by stamping, drilling or cutting the second plate 24.

[0064] The at least one slot 26 extends from the first longitudinal edge 24c toward the second longitudinal edge 24d.

[0065] Figure 2 The second longitudinal edge 24d is shown to be located between the first longitudinal edge 24c and the bending axis W.

[0066] The number of slots 26 can be one, two, three, etc. Therefore, the number of slots 26 can be considered to be greater than 2, 3, 5, 8, or even more. The number of slots 26 is selected, for example, based on the length of the curved portion 20b and the radius of curvature of the curved portion 20b.

[0067] The slots 26 are preferably spaced apart from each other along the axis X. The slots 26 may be spaced regularly or irregularly along the axis X.

[0068] exist Figures 4 to 5 In the example shown, there are six slots 26, and they are spaced fairly regularly apart from each other.

[0069] Each slot 26 can have any shape. Slots 26 can have the same shape or design, or they can have a variety of shapes and designs.

[0070] Each slot 26 can be, for example, a straight line.

[0071] exist Figures 4 to 6 In the example shown, each slot 26 is shaped like a keyhole.

[0072] In other embodiments, each slot 26 can be shaped as such as serrated, curved, or any other shape to prevent tearing during bending. Other designs, such as rectangular shapes with rounded corners, can also work.

[0073] like Figure 4 and Figure 6 As shown, the first plate 22 preferably includes at least one indexing protrusion 28 that protrudes from the first connecting surface 22a and passes through at least one opening 30 of the second plate 24.

[0074] In the example shown, each opening 30 is a hole away from the first longitudinal edge and the second longitudinal edge 24c, 24d.

[0075] The number of indexing protrusions 28 can be one, two, three or more. They are preferably distributed along the axis X and can be spaced regularly or irregularly between each other.

[0076] exist Figure 4 In the diagram, we can see that there are three protrusions 28. The number of openings 30 is equal to the number of protrusions 28, also three. One of the openings 30 is preferably designed to provide a tight fit with the associated protrusion 28 and create a 4-way locator (up / down and front / back). The other openings (one or more) may be designed to serve only as up / down locators (one or more).

[0077] Figures 7 to 9 Implementation examples include those with Figures 4 to 6 Most of the features described in the first embodiment. Therefore, Figures 4 to 6 The description of the embodiments is applicable to Figures 7 to 9 Examples of implementations.

[0078] One difference between the two embodiments involves the shape of the slot 26. Figures 7 to 9 The slots 26 in the middle are slit-shaped because they are narrower and straight.

[0079] Another difference between the two embodiments relates to the shape of the opening 30. Figures 7 to 9 The opening or each opening 30 is U-shaped or V-shaped and extends from the first longitudinal edge 24c. Figure 9 ).

[0080] In both embodiments, the height h of each slot 26 is preferably greater than 30% of the total height H of the second plate 22 (see...). Figure 6The total height H is measured between the edges 22c and 22d.

[0081] The height h of each slot 26 can be greater than 50% or 80% of the total height H, or it can be equal to 50% or 80% of the total height H.

[0082] The height h of each slot 26 can be less than 90% or 80% of the total height H, or it can be equal to 90% or 80% of the total height H.

[0083] The height h of each slot 26 can be at least five millimeters (+ / -10%), preferably ten millimeters (+ / -10%).

[0084] The width of each slot 26 may be at least one millimeter (+ / - 10%), and the width is measured along the axis X.

[0085] The width L of each slot 26 can be in the range of [0.5mm; 3mm], preferably [1mm; 2mm].

[0086] Each slot 26, particularly each keyhole-shaped slot 26, may have a round free end with a diameter in the range of [1 mm; 6 mm], preferably [2 mm; 5 mm].

[0087] The second plate 24 can be fixed to the first plate 22 by welding, bonding or any other attachment process.

[0088] When welding is used, the second plate 24 can be fixed to the first plate 22 by welding points 32 or welding beads, such as... Figure 4 and Figure 5 As shown.

[0089] Some of the welding points 32 or weld beads may be located between two adjacent slots 26. Figure 5 ).

[0090] In another variation, the weld point 32 or weld bead may be grouped into pairs of two weld points 32 or weld beads, and each pair of such weld points 32 or weld beads may be separated from each other by one of the slots. Figure 4 ).

[0091] The present invention further relates to a method for producing the sealing strip 18 as described above, wherein the method includes the following steps: a) Producing the first portion 18a via the dual injection method. b) Producing the second part 18b by the co-extrusion. c) The slot 26 is provided on the second plate 24. d) Bending the second plate 24 about the second axis X and applying the second plate 24 onto the first plate 22, and e) Fix the second plate 24 onto the first plate 22.

[0092] During step c), the slot 26 can be formed by punching, drilling or cutting the second plate 24.

[0093] During step d), the bending can be performed at an angle α that includes the range of [2°, 50°], preferably the range of [5°, 40°] (Figure 1b).

[0094] During step d), the bending can be performed with a radius including the range of [50 mm, 1000 mm], preferably within the range of [100 mm, 300 mm]. During step d), the method may include engaging one or more indexing protrusions 28 located on the first connecting surface 22a into one or more openings 30 of the second plate 24. The engagement can be performed by moving the first portion 18a toward the second portion 18b along the second axis W (see [link to previous step]). Figure 4 (See arrow F in the diagram). This engagement may be sufficient to hold the second portion 18b in a curved position on the first portion 18a prior to the fixing step e). This is possible, for example, in the first embodiment, because the opening 30 and the protrusion 28 are distributed along the curved portion 20b.

[0095] During step d), the first longitudinal edge 24c may abut against the first ridge 22c of the first plate 22, and / or the second longitudinal edge 24d may abut against the second ridge 22d of the first plate 22.

[0096] Between steps d) and e), the method may include step i): holding the first plate and the second plate 22, 24 in place relative to each other by clamping the first plate and the second plate 22, 24 together. This is particularly useful in the case of the second embodiment, so as to hold the second part 18b in a bent position on the first part 18a before fixing step e).

[0097] The second portion 18b may be interference-fitted in length at the end of step b) to include additional ends. The second portion 18b may be cut during step c) to remove the additional ends and, for example, to provide a specific shape for these ends. Figure 8 and Figure 9 In the example shown, at least one end of the second part 18b is cut with an inclined edge, that is, an edge inclined relative to the longitudinal axis X.

[0098] During step e), the fixing can be performed by welding, bonding, or any other attachment process. The welding can be performed, for example, by ultrasonic spot welding or vibration welding.

[0099] This invention offers many advantages, such as simplifying and reducing the cost of sealing strips with curved portions that cannot be produced solely through double injection.

Claims

1. A sealing strip for a vehicle, the sealing strip comprising: A first portion, having at least partially an elongated shape along a first axis and formed by double injection molding, includes a first plate parallel to the first axis, the first plate being made of a first material. The first portion includes at least one member made of a second material softer than the first material and double-injected with the first material during the double injection process. The first plate has a first connecting surface. The second part, having at least partially an elongated shape along the first axis and formed by co-extrusion, includes a second plate parallel to the first axis, the second plate being made of a third material. The second part includes at least one lip made of a fourth material softer than the third material and co-extruded with the third material during the co-extrusion process. The second plate has a second connecting surface applied to and fixed to the first connecting surface. The first portion includes a first curved portion surrounding a second axis, the second axis being perpendicular to the first axis and the first and second connecting surfaces, the first curved portion having a curved shape generated by the dual injection. The second portion includes a second curved portion around the second axis, the second portion having a straight shape produced by the co-extrusion and subsequently bent to form the second curved portion, the second curved portion including at least one slot formed in the second plate, the at least one slot extending from a first longitudinal edge of the second plate toward a second longitudinal edge of the second plate, the first longitudinal edge and the second longitudinal edge being at least partially parallel and at least partially extending along the first axis, and the second longitudinal edge being located between the first longitudinal edge and the second axis.

2. The sealing strip according to claim 1, characterized in that, The height of the at least one slot is greater than 30% of the total height of the second plate, the total height being measured between the first longitudinal edge and the second longitudinal edge.

3. The sealing strip according to claim 1, characterized in that, The at least one slot is a keyhole-shaped slot.

4. The sealing strip according to claim 1, characterized in that, The at least one slot includes a plurality of slots spaced apart from each other along the first axis.

5. The sealing strip according to claim 4, characterized in that, The plurality of slots includes a number greater than 2 or 3 slots.

6. The sealing strip according to claim 1, characterized in that, The first plate includes at least one indexing protrusion that protrudes from the first connection surface and passes through at least one opening in the second plate.

7. The sealing strip according to claim 6, characterized in that, The at least one opening is a hole located away from the first longitudinal edge and the second longitudinal edge.

8. The sealing strip according to claim 6, characterized in that, The at least one indexing protrusion includes two or more indexing protrusions distributed along the first axis.

9. The sealing strip according to claim 6, characterized in that, The at least one opening is U-shaped or V-shaped and extends from the first longitudinal edge.

10. The sealing strip according to claim 1, characterized in that, The first longitudinal edge is adapted to abut against the first ridge of the first plate, and / or the second longitudinal edge is adapted to abut against the second ridge of the first plate.

11. The sealing strip according to claim 1, characterized in that, The second part includes a slip coating located on the at least one lip and made of a fifth material, which is co-extruded with the third and fourth materials during the co-extrusion.

12. A method for producing a sealing strip according to claim 1, characterized in that, The method includes the following steps: a) Producing the first portion via the dual injection method. b) Producing the second part by the co-extrusion. c) The slot is provided on the second plate. d) Bending the second plate about the second axis and applying the second plate onto the first plate, and e) Attach the second plate to the first plate.

13. The method according to claim 12, characterized in that, The slot in step c) is formed by stamping, drilling or cutting the second plate.

14. The method according to claim 12, characterized in that, The bending in step d) is performed at an angle that is within the range of [2°, 50°].

15. The method according to claim 12, characterized in that, The bending in step d) is performed with a radius within the range of [50 mm, 1000 mm].

16. The method according to claim 12, characterized in that, During step d), at least one indexing protrusion located on the first connecting surface is engaged into an opening in the second plate.

17. The method according to claim 12, characterized in that, The method includes, during step d), the first longitudinal edge abutting against a first ridge of the first plate, and / or the second longitudinal edge abutting against a second ridge of the first plate.

18. The method according to claim 12, characterized in that, The method includes step i) between steps d) and e): holding the second plate on the first plate by clamping.

19. The method according to claim 12, characterized in that, The second part is sized to be oversized at the end of step b) to include an additional end, and the second part is cut during step c) to remove the additional end.

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