Coated skin structure, interior trim part and vehicle

Abstract

The utility model relates to the technical field of vehicles, and discloses a coating skin structure, an interior trim part and a vehicle, a foaming layer is coated on the surface of one side of a framework provided with a supporting convex part, a skin is coated on the surface of one side of the foaming layer deviating from the framework, and the foaming layer and the skin are supported by the supporting convex part, so that the skin at the position of a corner cannot collapse; the skin is jacked up through the foaming convex parts, the thickness of the foaming layer at the corner position is increased, and the hardness difference between the corner position and other positions is reduced. The interior trim part comprises the coating skin structure, so that the actual appearance of the interior trim part with the coating skin structure is close to a pre-designed appearance, and the visual perception is enhanced; the structure of the interior trim part is simplified, the machining efficiency of the interior trim part is improved, and the machining cost of the interior trim part is reduced; the hand feeling and the leg feeling when a user touches the skin of the corner position are reduced, and the comfort degree is improved. The vehicle comprises the interior trim part, the attractiveness of the vehicle can be improved, the machining efficiency is improved, the machining cost is reduced, and the comfort level is improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to a covering skin structure, interior parts and vehicle. Background Technology

[0002] To improve comfort and aesthetics, automotive interior parts are typically covered with a foam-coated skin around their frame. However, during actual installation, it has been found that the skin collapses at corners, causing the actual shape of the interior parts to differ significantly from the pre-designed shape. To address this, existing technology proposes attaching or welding support members to the outside of the frame, then covering the foam-coated skin onto the side of the frame where the support members are located, using the support members to support both the foam layer and the skin.

[0003] However, in practical applications, it was found that when users touch the corners of the interior trim, they experience a rough feeling in their hands and legs, which seriously affects comfort. If the support is made into a structure that can undergo elastic deformation, it will reduce the support capacity of the support for the skin at the corner, and the corner of the interior trim is prone to collapse. Utility Model Content

[0004] The purpose of this invention is to propose a covering structure, interior parts, and vehicle that can make the actual shape of the product close to the design data to avoid collapse at corners while improving comfort.

[0005] To achieve this objective, firstly, the coating skin structure provided by this utility model includes:

[0006] A skeleton having corners, with supporting protrusions on the outer sides of the corners;

[0007] A foam layer is provided, which covers the surface of the skeleton on the side where the support protrusion is provided. The foam layer has a foam protrusion on the surface opposite to the skeleton, and the foam protrusion is provided opposite to the support protrusion along the thickness direction of the skeleton.

[0008] Skin, which covers the surface of the foam layer opposite to the skeleton.

[0009] As one feasible technical solution for the aforementioned covering skin structure, the supporting protrusion is integrally formed into the skeleton.

[0010] As one feasible technical solution for the above-mentioned covering skin structure, the skeleton has a first wall and a second wall that are arranged opposite to each other along its thickness direction. The first wall is recessed on the side where the second wall is located to form a recessed portion, so that the second wall forms the supporting protrusion that protrudes from the second wall.

[0011] As one feasible technical solution for the above-mentioned covering skin structure, the supporting protrusion has two first supporting walls arranged opposite to each other, and the arrangement direction of the two first supporting walls is perpendicular to the thickness direction of the skeleton and the extension direction of the supporting protrusion.

[0012] The distance between the two first support walls gradually increases from the side of the skin to the side where the skeleton is located.

[0013] As one feasible technical solution for the above-mentioned covering skin structure, the supporting protrusion and the skeleton located on both sides thereon are smoothly connected by a transition portion;

[0014] And / or, the two first support walls are smoothly connected by a second support wall;

[0015] And / or, the foamed protrusions and the foamed layers located on both sides thereof are smoothly connected.

[0016] As one feasible technical solution for the above-mentioned covering skin structure, the thickness of the foam layer directly opposite the supporting protrusion is d1, and the thickness of the foam layer located on both sides of the supporting protrusion is d2, where 1mm≤d1≤8.5mm and 2mm≤d2≤10mm.

[0017] And / or, the thickness of the skin directly opposite the foamed protrusion is D1, and the thickness of the skin on both sides of the foamed protrusion is D2, 1mm≤D1≤4mm, 2mm≤D2≤4.5mm, D1<D2.

[0018] As one feasible technical solution for the above-mentioned covering skin structure, the cross section of the surface of the second support wall in contact with the foam layer perpendicular to the extension direction of the support protrusion is a first arc, and the radius of the first arc is R1, R1≥1mm;

[0019] And / or, the surface of the foamed protrusion that contacts the epidermis has a cross section perpendicular to the extension direction of the supporting protrusion that is a second arc, the radius of the second arc being R2, R2≥0.75mm.

[0020] As one feasible technical solution for the above-mentioned covering skin structure, the bending angle of the skeleton at the corner is greater than 90°;

[0021] And / or, the skin includes an outer skin layer and an elastic layer, the elastic layer being disposed between the foam layer and the outer skin layer.

[0022] Secondly, the interior trim provided by this utility model includes a covering skin structure as described in any of the above-described feasible embodiments.

[0023] Thirdly, the vehicle provided by this utility model includes the aforementioned interior trim components.

[0024] This utility model has at least the following beneficial effects:

[0025] The coating structure provided by this utility model has a foam layer covering the surface of the skeleton on the side where the supporting protrusion is set, and an outer skin covering the surface of the foam layer on the side away from the skeleton. The supporting protrusion supports the foam layer and the outer skin, so that the outer skin at the corner will not collapse. At the same time, by providing a foam protrusion on the side of the foam layer away from the skeleton, the foam protrusion lifts up the outer skin, increasing the thickness of the foam layer at the corner and reducing the hardness difference between the corner and other locations.

[0026] The interior trim provided by this utility model includes the aforementioned covering skin structure, which makes the actual shape of the interior trim with the covering skin structure closely resemble the pre-designed shape, enhancing the visual experience; it simplifies the structure of the interior trim, improves the processing efficiency of the interior trim, and reduces the processing cost of the interior trim; it reduces the discomfort and leg pain when users touch the skin at the corners, improving comfort.

[0027] The vehicle provided by this utility model, including the aforementioned interior parts, can improve the vehicle's aesthetics, increase processing efficiency, reduce processing costs, and enhance comfort. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of the skin covering provided in an embodiment of the present utility model;

[0030] Figure 2 yes Figure 1 Sectional view along line AA;

[0031] Figure 3 This is a cross-sectional view of the skin-covering structure (marked d1 and d2) provided in an embodiment of this utility model;

[0032] Figure 4 This is a cross-sectional view of the skin-covering structure (marked R1 and R2) provided in an embodiment of this utility model;

[0033] Figure 5 This is a cross-sectional view of the skin-covering structure (marked D1 and D2) provided in an embodiment of this utility model.

[0034] In the picture:

[0035] 10. Skeleton; 110. Supporting protrusion; 111. First supporting wall; 112. Second supporting wall; 121. First wall surface; 122. Second wall surface; 130. Recess; 140. Transition; 20. Foaming layer; 210. Foaming protrusion; 30. Skin. Detailed Implementation

[0036] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0037] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0040] Existing skin structures consist of a skeleton, a foam layer, and a skin, which are sequentially wrapped from the inside out. When the skin structure is used on a vehicle, one side of the skin in the thickness direction is exposed, while the skeleton and foam layer are not exposed at all. The side containing the skin is the outside, and the side containing the skeleton is the inside.

[0041] To create corners on the surface of the outer skin structure, corners are set on the skeleton, and the skin with a foam layer is wrapped around the surface of the skeleton. However, during actual wrapping, it was found that the skin collapses at the corner positions, causing a significant difference between the actual shape of the interior trim and the pre-designed shape. This is because the skin consists of an outer skin layer and an elastic layer, with the elastic layer located between the outer skin layer and the foam layer. When the skin is wrapped around the corner, the elastic layer is also compressed, causing collapse at the corner. It should be noted that the outer skin layer can be a PU layer or a PVC layer, and the elastic layer can be a sponge layer or a rubber layer. These are commonly used outer skin layers and elastic layers in the art and are not the focus of this invention; therefore, they will not be described in detail here.

[0042] To address this, existing technologies propose attaching or welding a support member to the side of the skeleton facing the foam layer and placing the support member at the corner. The support member supports the foam layer and the skin, preventing the skin at the corner from collapsing, thus allowing the actual shape of the interior trim with the skin covering structure to closely resemble the pre-designed shape.

[0043] However, in actual use, it was found that when users touch the corners of the interior trim, they experience a rough feeling in their hands and legs, which seriously affects comfort. If the support is made into a structure that can undergo elastic deformation, it will reduce the support of the support for the skin at the corner, and the corner of the interior trim is prone to collapse.

[0044] In view of this, embodiments of the present invention provide a covering skin structure, an interior part including the covering skin structure, and a vehicle including the interior part. By improving the covering skin structure, the actual shape of the interior part with the covering skin structure is made closer to the pre-designed shape to avoid collapse at corner positions, while improving comfort.

[0045] like Figure 1 and Figure 2 As shown, the skin structure provided in this embodiment of the present invention includes a skeleton 10, a foam layer 20, and a skin 30. The skeleton 10 has a corner, and a support protrusion 110 is provided on the outer side of the corner of the skeleton 10. The foam layer 20 covers the side of the skeleton 10 where the support protrusion 110 is provided. A foam protrusion 210 is provided on the surface of the foam layer 20 away from the skeleton 10. The foam protrusion 210 is provided directly opposite the support protrusion 110 along the thickness direction of the skeleton 10. The skin 30 covers the surface of the foam layer 20 away from the skeleton 10.

[0046] It should be noted that the area enclosed by the corner is the inner side, and the other side is the outer side. The corner is generally set to form a ridge feature on the outer side of the covering skin structure. The ridge feature is generally long and narrow. Therefore, the corner is also long and narrow, extending along the extension direction of the ridge feature. The supporting protrusion 110 extends along the extension direction of the ridge feature.

[0047] The support protrusion 110 supports the foam layer 20 and the outer skin 30, reducing the compression of the outer skin 30 at the corner, preventing the outer skin 30 at the corner from collapsing, and making the actual shape of the interior part with the covered outer skin structure close to the pre-designed shape, enhancing the visual experience; by setting the foam protrusion 210, the outer skin 30 can be lifted up, increasing the thickness of the foam layer 20 at the corner, reducing the tactile difference between the corner and other locations, reducing the roughness and discomfort when the user touches the outer skin 30 at the corner, and improving comfort.

[0048] It should be noted that after the foam layer 20 is provided with the foam protrusion 210, when the skin 30 with the foam layer 20 is wrapped around the side of the skeleton 10 where the support protrusion 110 is provided, under the influence of the stretching of the wrapping force, the position of the skin 30 facing the foam protrusion 210 is thinned to form a receiving groove, and the foam protrusion 210 is embedded in the receiving groove.

[0049] In some embodiments, the support protrusion 110 is integrally formed into the frame 10, which can simplify the processing of the support protrusion 110, improve processing efficiency, and reduce processing costs.

[0050] In some embodiments, the bending angle of the skeleton 10 at the corner is greater than 90°. When the skin 30 with the foam layer 20 is wrapped around the side of the skeleton 10 where the support protrusion 110 is provided, if the external bending angle of the skeleton 10 at the corner is greater than 90°, the compression of the skin 30 will be more severe. When the external bending angle of the skeleton 10 at the corner is not greater than 90°, due to the process, the compression of the skin 30 does not significantly affect the shape of the interior part with the wrapped skin structure. Therefore, this wrapped skin structure is mainly for solutions where the bending angle of the skeleton 10 at the corner is greater than 90°.

[0051] In some embodiments, such as Figure 2 and Figure 3 As shown, the frame 10 has a first wall surface 121 and a second wall surface 122 arranged opposite to each other along its thickness direction. The first wall surface 121 is recessed into the side where the second wall surface 122 is located to form a recessed portion 130, so that the second wall surface 122 forms a supporting protrusion 110 protruding from the second wall surface 122. The forming method of the supporting protrusion 110 is simple and the processing is convenient and quick.

[0052] When the skin 30 at the location of the supporting protrusion 110 is pressed, the foam layer 20 is squeezed, so that the supporting protrusion 110 supports the foam layer 20 and the skin 30. At the same time, the setting of the recessed part 130 allows the supporting protrusion 110 to deform when pressed, so that the surface of the skin 30 has a soft feel and enhances the tactile experience. Moreover, after the external force is removed, the supporting protrusion 110 can return to its original shape without affecting the appearance of the skin structure and enhancing the visual experience.

[0053] For example, the frame 10 is a plastic structure. Specifically, the support protrusion 110 is integrally molded onto the frame 10 by injection molding. The molding method is simple and the processing cost is low. As an alternative, the frame 10 can also be a metal structure. In this case, the support protrusion 110 can be formed by stamping the frame 10.

[0054] In some embodiments, such as Figure 2 As shown, the foam layer 20 and the skeleton 10 are bonded together. Before covering the skin 30, the foam layer 20 is processed first, then the foam layer 20 and the skin 30 are pre-bonded together, and finally the foam layer 20 is bonded to the skeleton 10. The assembly of the skin-covered structure is simple, efficient, and low-cost.

[0055] In some embodiments, such as Figure 2 As shown, the support protrusion 110 has two first support walls 111 arranged opposite to each other. The arrangement direction of the two first support walls 111 is perpendicular to the thickness direction of the skeleton 10 and the extension direction of the support protrusion 110. The distance between the two first support walls 111 gradually increases from the skin 30 to the side where the skeleton 10 is located.

[0056] Specifically, the cross-sections of the two first support walls 111 perpendicular to the extension direction of the support protrusion 110 are approximately V-shaped. In other words, the support protrusion 110 is approximately a V-shaped structure, and the inner cavity of the V-shaped structure forms a recess 130. When the skin 30 at the location of the support protrusion 110 is pressed, the two first support walls 111 move away from each other, so that the opening of the V-shaped structure becomes larger and deformed, making the surface of the skin 30 feel soft and improving the user's tactile experience. Moreover, after the external force is removed, the two first support walls 111 can also move closer to each other to restore their original shape without affecting the appearance of the covered skin structure and enhancing the visual experience. Furthermore, the distance between the two first support walls 111 gradually increases from the side where the skin 30 is located to the side where the skeleton 10 is located. In other words, the height of the support protrusion 110 gradually decreases from the center of the support protrusion 110 to the edge of the support protrusion 110. This ensures that the outer surface of the skin 30 does not have drastic height changes, allowing the interior trim with the skin-covering structure to form a pre-designed shape, enhancing the visual and tactile experience, and improving the aesthetic performance of the interior trim.

[0057] From the side where the skin 30 is located to the side where the skeleton 10 is located, the distance between the two first support walls 111 gradually increases. This also allows the skin 30 with the foam layer 20 to cover the side of the skeleton 10 where the support protrusion 110 is located. From the center of the support protrusion 110 to the two side edges of the support protrusion 110, the thickness of the foam layer 20 slowly increases and the hardness of the foam layer 20 slowly changes, avoiding obvious soft and hard transition points and reducing the tactile changes when the skin 30 at different locations is touched.

[0058] In some embodiments, such as Figure 2 As shown, the supporting protrusion 110 and the skeleton 10 located on both sides of it are smoothly connected by a transition portion 140. Specifically, the transition portion 140 is an arc structure, and the supporting protrusion 110 and the skeleton 10 located on both sides of it are smoothly connected by an arc structure. With this configuration, the thickness of the foam layer 20 gradually increases from the center of the supporting protrusion 110 to the two side edges of the supporting protrusion 110, avoiding obvious soft-hard transition points and reducing the tactile changes of the skin 30 at different locations when touched.

[0059] In some embodiments, such as Figure 2 As shown, the two first support walls 111 are smoothly connected by the second support wall 112. This arrangement ensures that the support protrusion 110 protrudes from the highest point of the skeleton 10 without any sharp edges, and that the thickness of the foam layer 20 at the highest point of the support protrusion 110 protrudes from the skeleton 10 is similar to the thickness of the surrounding foam layers 20, thus avoiding obvious soft-hard transition points and reducing tactile changes in the surface 30 when touched at different locations.

[0060] Specifically, the surface of the second support wall 112 that contacts the foam layer 20 has a first circular arc in cross-section perpendicular to the extension direction of the support protrusion 110. The second support wall 112 lifts up the outer foam layer 20 and the skin 30, compensating for the collapse of the skin 30 at the corner, so that the support protrusion 110 does not have sharp edges at the highest point of the skeleton 10, and the thickness of the foam layer 20 at the highest point of the support protrusion 110 is less different from the thickness of the surrounding foam layers 20, avoiding obvious soft-hard transition points and reducing the tactile changes of the skin 30 when touched at different locations.

[0061] In some embodiments, such as Figure 3 As shown, the thickness of the foam layer 20 directly opposite the support protrusion 110 is d1, and the thickness of the foam layer 20 located on both sides of the support protrusion 110 is d2, where 1mm≤d1≤8.5mm, 2mm≤d2≤10mm, and d1<d2.

[0062] The size of d2 is determined by the thickness of the selected foam layer 20 and the desired feel. If d2 is less than 2mm, the foam layer 20 will not function properly, resulting in poor impact resistance, heat insulation, and sound insulation. If d2 is greater than 10mm, the foam layer 20 will be too thick, increasing costs. For example, d2 = 6mm. The size of d1 depends on the size of the corner. If d1 < 1mm, the foam layer 20 will not function properly, resulting in poor impact resistance, heat insulation, and sound insulation. If d1 > 8.5mm, the foam layer 20 will be too thick, increasing costs, and the supporting protrusion 110 will not effectively support the foam layer 20 and the skin 30, causing the skin 30 at the corner to collapse. For example, d1 = 3mm, which can effectively support the foam layer 20 and the skin 30 while taking into account the tactile feel and cost at the corner location, so that the skin 30 at the corner location will not collapse and improve the visual effect.

[0063] For example, such as Figure 3 and Figure 4 As shown, the radius of the first arc is R1, where R1 ≥ 1mm. When R1 < 1mm, the support protrusion 110 will protrude from the highest point of the skeleton 10, resulting in a sharp edge. At this point, the thickness of the foam layer 20 differs significantly from the surrounding foam layers. When the skin 30 is touched, the tactile sensation at the highest point of the support protrusion 110 is significantly different from the surrounding area. Users will experience a rough, uncomfortable feel when touching the skin 30 corresponding to this point, affecting comfort. The specific value of R1 depends on the size of the corner; the larger the angle of the corner, the larger R1 will be.

[0064] In some embodiments, the central angle corresponding to the first arc is less than 180° to avoid the support protrusion 110 protruding too much, which would result in a large difference in tactile feel between the skin 30 at the location of the support protrusion 110 and the skins 30 on both sides of the support protrusion 110. The central angle corresponding to the first arc depends on the size of the corner.

[0065] In some embodiments, such as Figure 4 and Figure 5 As shown, the surface of the foamed protrusion 210 that contacts the skin 30 has a second circular arc in cross section perpendicular to the extension direction of the supporting protrusion 110.

[0066] By setting a second arc, the thickness of the foam layer 20 gradually increases from the foam protrusion 210 to the foam layers 20 on both sides, reducing the tactile changes when the epidermis 30 at different locations is touched.

[0067] In some embodiments, such as Figure 4 and Figure 5 As shown, the thickness of the skin 30 directly opposite the foamed protrusion 210 is D1, and the thickness of the skin 30 on both sides of the foamed protrusion 210 is D2, where 1mm≤D1≤4mm, 2mm≤D2≤4.5mm, and D1<D2.

[0068] When a skin 30 with a foam layer 20 is covered on one side of the support protrusion 110 of the skeleton 10, the skin 30 is thinned at the position directly opposite the foam protrusion 210 due to the stretching effect of the covering tension, and the thickness of the skin 30 changes from D2 to D1. The thickness of D2 is determined by the selected skin 30 and the desired tactile feel. For example, if the thickness of the skin 30 before covering is 3mm, it becomes 2.5mm after being compressed due to the elastic layer of the skin 30. The thickness of D1 is affected by the tension of the skin 30 during covering, the thickness of the elastic layer of the selected skin 30, and the size of the corner. When a skin 30 with a thickness of 3mm before covering is selected and the skin 30 includes a 1mm outer skin layer and a 2mm elastic layer, the thickness of the foam layer 20 at the position of the foam protrusion 210 becomes 1.5mm.

[0069] In some embodiments, the radius of the second arc is R2, where R2 ≥ 0.75 mm. R2 is typically 0.75 mm. When R2 < 0.75 mm, the foamed protrusion 210 will protrude beyond the highest point of the foam layer 20, creating sharp edges that severely compress the skin 30, making it difficult to maintain a smooth surface and affecting the appearance of the covered skin structure. The specific value of R2 can be determined based on the angle of the corner; the larger the angle, the larger R2.

[0070] In some embodiments, the central angle corresponding to the second arc is less than 180° to avoid the foamed protrusion 210 protruding too much, which would result in a large difference in tactile sensation between the epidermis 30 at the location of the foamed protrusion 210 and the epidermis 30 on both sides of the foamed protrusion 210. The central angle corresponding to the second arc depends on the size of the corner.

[0071] In some embodiments, the foam layer 20 is polyurethane foam, which has a certain degree of elasticity and can improve the tactile feel when touching the outer skin 30. Alternatively, the foam layer 20 can also be made of polystyrene foam. Both are commonly used foam layers 20 in the art and will not be described in detail here.

[0072] Furthermore, the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A clad skin structure characterised in that, The application relates to a corner support structure, comprising: a skeleton (10) having a corner, the corner of the skeleton (10) being provided with a support protrusion (110) outside; a foaming layer (20) covering the surface of the skeleton (10) on the side provided with the support protrusion (110), the surface of the foaming layer (20) away from the skeleton (10) being provided with a foaming protrusion (210) in a convex manner, the foaming protrusion (210) being arranged along the thickness direction of the skeleton (10) and facing the support protrusion (110); and a skin (30) covering the surface of the foaming layer (20) away from the skeleton (10). The support protrusion (110) is integrally formed on the skeleton (10). The skeleton (10) has a first wall surface (121) and a second wall surface (122) oppositely arranged along the thickness direction, the first wall surface (121) is recessed to form a recess (130) towards the side where the second wall surface (122) is located, and the second wall surface (122) forms the support protrusion (110) protruding from the second wall surface (122). The support protrusion (110) has two first support walls (111) oppositely arranged, the arrangement direction of the two first support walls (111) is perpendicular to the thickness direction of the skeleton (10) and the extension direction of the support protrusion (110).

2. The clad skin structure of claim 1, wherein, From the direction of the skin (30) to the side where the skeleton (10) is located, the spacing between the two first support walls (111) gradually increases.

3. The clad skin structure of claim 2, wherein, The support protrusion (110) and the skeleton (10) located on both sides of the support protrusion (110) are smoothly connected through a transition part (140).

4. The cover skin structure according to claim 1, characterized by And / or, the two first support walls (111) are smoothly connected through a second support wall (112). And / or, the foaming protrusion (210) and the foaming layer (20) located on both sides of the foaming protrusion (210) are smoothly connected.

5. The cover skin structure according to claim 4, characterized by The thickness of the foaming layer (20) facing the support protrusion (110) is d1, the thickness of the foaming layer (20) located on both sides of the support protrusion (110) is d2, 1mm<=d1<=8.5mm, 2mm<=d2<=10mm, d1 And / or, the thickness of the skin (30) facing the foaming protrusion (210) is D1, the thickness of the skin (30) located on both sides of the foaming protrusion (210) is D2, 1mm<=D1<=4mm, 2mm<=D2<=4.5mm, D1 The surface of the second support wall (112) contacting the foaming layer (20) is a first circular arc in the cross section perpendicular to the extension direction of the support protrusion (110), the radius of the first circular arc is R1, R1>=1mm.

6. The cover skin structure according to claim 5, characterized by And / or, the surface of the foaming protrusion (210) contacting the skin (30) is a second circular arc in the cross section perpendicular to the extension direction of the support protrusion (110), the radius of the second circular arc is R2, R2>=0.75mm. The bending angle of the skeleton (10) at the position of the corner is greater than 90 degrees.

7. The cover skin structure according to claim 5, characterized by ​ ​ 8. The clad skin structure of any one of claims 1 to 6, wherein, ​ And / or, the skin (30) comprises an outer skin layer and an elastic layer, the elastic layer being disposed between the foamed layer (20) and the outer skin layer.

9. Interior trim part, characterized in that An interior trim part comprising the cover skin structure of any one of claims 1 to 8.

10. Vehicle, characterized in that An interior trim part comprising the cover skin structure of claim 9.

Images