A glass edging assembly

Abstract

A glass edging assembly includes a glass substrate (1) and a first edging (2); the glass substrate (1) has a periphery, a portion of which is wrapped by the first edging (2) to form a wrapped edge (111), and another portion of which is exposed outside the first edging (2) to form an exposed edge (112); the wrapped edge (111) is provided with at least one snap-fit ​​portion, which snaps into the first edging (2) to restrict the first edging (2) from detaching from the wrapped edge (111), thereby solving the problem of glass warping and deformation caused by edging shrinkage deformation.

Description

Technical Field

[0001] This disclosure relates to the field of glass technology, and in particular to a glass edging assembly. Background Technology

[0002] The injection molding process for the glass edging assembly is as follows: First, the glass sheet and injection molding granules (i.e., raw materials) are placed together into the first mold cavity to inject and mold a rigid edging, resulting in a semi-finished product. Then, the semi-finished product is placed into the second mold cavity to inject and mold a soft edging, thus completing the injection molding process. In existing glass edging assemblies, the rigid edging covers the entire perimeter of the glass sheet. Summary of the Invention

[0003] This disclosure provides a glass edging assembly to solve the problem of glass warping and deformation caused by edging shrinkage and deformation.

[0004] This application provides a glass edge-wrapping assembly, including a glass substrate and a first edge-wrapping; the glass substrate has a periphery, a portion of which is wrapped by the first edge-wrapping to form a wrapped edge, and another portion of which is exposed outside the first edge-wrapping to form an exposed edge; the wrapped edge is provided with at least one snap-fit ​​portion, which snaps into the first edge-wrapping to prevent the first edge-wrapping from detaching from the wrapped edge.

[0005] In some embodiments, at least one of the snap-fit ​​portions is a groove recessed from the wrapping edge toward the glass substrate, and the first wrapping edge fills the groove to snap into the groove.

[0006] In some embodiments, the depth of the groove is not less than 1.0 mm.

[0007] In some embodiments, at least one of the snap-fit ​​portions is a protrusion extending outward from the wrapping edge toward the glass substrate, and the first wrapping edge wraps around the protrusion to snap-fit ​​with the protrusion.

[0008] In some embodiments, the height of the protrusion is not less than 1.0 mm.

[0009] In some embodiments, the periphery includes multiple edges; the exposed edge includes at least one edge, or the exposed edge is part of an edge.

[0010] In some embodiments, the periphery includes at least three edges; the wrapping edge includes at least two edges; and at least one of the at least two edges is provided with one or more of the snap-fit ​​portions.

[0011] In some embodiments, the first edge has a first end and a second end opposite to each other in the direction surrounding the edge of the package, and the edge of the package is provided with at least two snap-fit ​​portions corresponding to the first end and the second end, and the first end and the second end snap-fit ​​with the snap-fit ​​portions respectively.

[0012] In some embodiments, the first end and the second end are respectively located at two corners of the periphery, and the two corners are respectively provided with the snap-fit ​​portion, and the first end and the second end are respectively snapped into the snap-fit ​​portion at the two corners.

[0013] In some embodiments, the first edging extends continuously along the edge of the package.

[0014] In some embodiments, the glass edging assembly further includes: a second edging that wraps around at least a portion of the first edging and the entire or part of the periphery of the glass substrate.

[0015] In some embodiments, the first edge banding is a rigid edge banding, and the second edge banding is a soft edge banding.

[0016] The glass edge-wrapping assembly of this application, by setting the rigid edge-wrapping to wrap only a portion of the periphery of the glass substrate instead of the entire periphery, can avoid warping and deformation of the glass substrate due to shrinkage and deformation of the rigid edge-wrapping, and can also reduce the amount of raw materials used for the rigid edge-wrapping, thereby reducing costs; by setting the snap-fit ​​part, the rigid edge-wrapping and the glass substrate are firmly bonded together, preventing the rigid edge-wrapping from falling off the glass substrate. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments or prior art of this specification, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0018] Figures 1 to 4 These are schematic diagrams of the glass substrate structure in different embodiments of this application;

[0019] Figure 5 and Figure 6 This is a schematic diagram of the glass substrate and the first edge banding in different embodiments of this application;

[0020] Figure 7 This is a schematic diagram of the structure of a glass edging assembly according to an embodiment of this application;

[0021] Figure 8 yes Figure 7 A schematic cross-sectional view along line AA in the middle;

[0022] Figure 9 yes Figure 7 A cross-sectional view along the BB line;

[0023] Figure 10 yes Figure 7 A cross-sectional view along the CC line;

[0024] Figure 11 This is a schematic diagram of the glass edging assembly according to another embodiment of this application;

[0025] Figure 12 yes Figure 11 A cross-sectional view along the DD line. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this specification, and not all embodiments. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this specification.

[0027] The term "comprising" and its variations as used herein signify open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "at least partially based on". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc., may refer to different or the same objects.

[0028] In existing glass edging assemblies, rigid edging surrounds the entire perimeter of the glass panel. The inventors have discovered that the shrinkage rate of rigid edging material is approximately 5‰ to 10‰. After being injection molded onto the glass panel, the rigid edging material will produce a large amount of shrinkage deformation. In extreme environments, such as at a low temperature of -30℃, the shrinkage deformation is even greater, with a shrinkage rate as high as 15‰. When the rigid edging completely surrounds the glass panel, the shrinkage deformation of the rigid edging will cause the glass panel to warp and deform, resulting in substandard quality of the glass edging assembly.

[0029] To address the aforementioned issues, this application provides a glass edging assembly, which includes a glass substrate and a first edging.

[0030] Figure 1 , Figure 2 , Figure 3 and Figure 4This invention shows schematic diagrams of the glass substrate 1 in different embodiments. For example... Figures 1 to 4 As shown, the glass substrate 1 has a periphery that includes the entire edge 11 of the outer periphery of the glass substrate 1.

[0031] exist Figures 1 to 4 In the example, the glass substrate 1 is quadrilateral in shape, and its perimeter includes four edges 11 connected end-to-end. The shape of the glass substrate 1 can be square or trapezoidal. However, this application is not limited to this; the shape of the glass substrate 1 can also be triangular, pentagonal, or any other arbitrary shape. The edges 11 of the glass substrate 1 can be straight or curved, and the curved shape can be arc or other curved shapes.

[0032] Figure 5 and Figure 6 This shows a schematic diagram of the glass substrate 1 and the first edge banding 2 combined in different embodiments of this application.

[0033] like Figure 5 and Figure 6 As shown, the first edging 2 wraps around a portion of the periphery of the glass substrate 1, rather than the entire periphery. Therefore, another portion of the periphery of the glass substrate 1 is exposed outside the first edging 2 and is not wrapped by the first edging 2. In other words, the first edging 2 extends along the periphery of the glass substrate 1 but does not close itself. Thus, the first edging 2 partially surrounds the glass substrate 1 rather than completely surrounds it. The advantage of this design is that even if the first edging 2 shrinks and deforms, it will not compress the glass substrate 1, thereby preventing warping and deformation of the glass substrate 1. It can also reduce the amount of raw materials used in the first edging 2 and lower costs.

[0034] For ease of description, the periphery of the part that is wrapped by the first edge band 2 will be referred to as the wrapped edge, and the periphery of the other part that is not wrapped by the first edge band 2 will be referred to as the exposed edge.

[0035] exist Figure 5 In the example, edges 101, 102 and 103 of the glass substrate 1 are wrapped by the first edge 2, so edges 101, 102 and 103 constitute the wrapped edge 111, and edge 104 is not wrapped by the first edge 2, so edge 104 is the exposed edge 112.

[0036] Since the first edge 2 only covers part of the periphery of the glass substrate 1, the first edge 2 is easy to fall off the glass substrate 1. To avoid this problem, the wrapping edge 111 is provided with at least one snap-fit ​​part, which snaps with the first edge 2 to restrict the first edge 2 from falling off the wrapping edge 111, so that the first edge 2 is firmly bonded to the glass substrate 1.

[0037] In some embodiments, such as Figure 1 and Figure 5 As shown, at least one snap-fit ​​portion is a groove 3 recessed from the edge 11 (i.e., the wrapping edge 111) toward the glass substrate 1. The groove 3 penetrates the glass substrate 1 along the thickness direction of the glass substrate 1. When the first wrapping edge 2 is formed on the glass substrate 1 by injection molding, the first wrapping edge 2 not only wraps part of the periphery of the glass substrate 1, but also fills the groove 3. In other words, the first wrapping edge 2 is embedded in the groove 3 to form a snap-fit ​​with the groove 3, thereby restricting the first wrapping edge 2 from falling off the glass substrate 1.

[0038] Optionally, the shape of the groove 3 can be an arc, square, triangle, trapezoid, rhombus, fan, crescent, S-shape or any other arbitrary shape.

[0039] For example, such as Figure 1 and Figure 5 As shown, the edge 111 of the package is provided with multiple grooves 3. The multiple grooves 3 may have the same shape, or they may all be different, or some grooves 3 may have the same shape and some grooves 3 may have different shapes.

[0040] Optionally, such as Figure 1 As shown, the depth H1 of the groove 3 is not less than 1.0 mm to improve the firmness and stability of the snap-fit. For example, the depth H1 can be 1.0 mm, 2.0 mm, or 3.0 mm.

[0041] Optionally, the depth H1 of the groove 3 is not greater than the width of the first edge band 2, so as to avoid the groove 3 not being completely covered by the first edge band 2. Specifically, the depth H1 of the groove 3 is not greater than 40mm. For example, the depth H1 of the groove 3 is 2mm to 10mm.

[0042] For example, the wrapping edge 111 is provided with a plurality of grooves 3. The depth of the plurality of grooves 3 may be the same, or they may all be different, or some of the grooves 3 may have the same depth and some of the grooves 3 may have different depths.

[0043] In this embodiment, the groove 3 can be obtained by cutting the glass. The cutting methods include, but are not limited to, high-pressure water jet cutting, laser cutting, and high-speed drill cutting.

[0044] In other embodiments, such as Figure 2 As shown, at least one snap-fit ​​part is a protrusion 4 protruding outward from the edge 11 (i.e. the wrapping edge 111) toward the glass substrate 1. When the first wrapping edge 2 is formed on the glass substrate 1 by injection molding, the first wrapping edge 2 not only wraps the wrapping edge of the glass substrate 1, but also wraps the protrusion 4 to form a snap-fit ​​with the protrusion 4, thereby restricting the first wrapping edge 2 from falling off the glass substrate 1.

[0045] Optionally, the shape of the protrusion 4 can be circular, semi-circular, triangular, square, trapezoidal, rhomboid, fan-shaped, crescent-shaped, S-shaped or any other arbitrary shape.

[0046] For example, such as Figure 2 As shown, the edge of the package has multiple protrusions 4. The multiple protrusions 4 may have the same shape, or they may all be different, or some of the protrusions 4 may have the same shape and some of the protrusions 4 may have different shapes.

[0047] Optionally, such as Figure 2 As shown, the height H2 of protrusion 4 is not less than 1.0 mm to improve the firmness and stability of the snap-fit. For example, the height H2 can be 1.0 mm, 2.0 mm, or 3.0 mm.

[0048] Optionally, the height H2 of the protrusion 4 is not greater than 40 mm. For example, the height H2 of the protrusion 4 is 2 mm to 10 mm.

[0049] For example, the wrapping edge 111 is provided with a plurality of protrusions 4. The height of the plurality of protrusions 4 may be the same, or they may all be different, or some of the protrusions 4 may have the same height, while some of the protrusions 4 may have different heights.

[0050] In some other embodiments, such as Figure 3 As shown, the wrapping edge 111 is provided with at least two locking portions. At least one locking portion is a groove 3 recessed from the wrapping edge 111 toward the glass substrate 1, and at least one locking portion is a protrusion 4 protruding from the wrapping edge toward the glass substrate 1. In this embodiment, by providing the groove 3 and the protrusion 4, the first wrapping edge 2 and the glass substrate 1 are locked together in different directions toward the inner and outer sides of the glass substrate 1, further improving the firmness and stability of the locking.

[0051] In this embodiment, the shape and size of the groove 3 and the protrusion 4 can be set with reference to the previous embodiment, so they will not be described again.

[0052] In some embodiments, such as Figure 5 As shown, the wrapping edge 111 is provided with at least two locking portions, and the first wrapping edge 2 has a first end 21 and a second end 22 opposite to each other in the direction surrounding the wrapping edge 111. The first end 21 and the second end 22 are respectively locked with a locking portion. The locking of the two ends of the first wrapping edge 2 with the locking portions can more effectively position the first wrapping edge 2 and prevent the first wrapping edge 2 from falling off the glass substrate 1.

[0053] Optionally, such as Figure 5 As shown, the first end 21 and the second end 22 of the first edge banding 2 are located at two corners of the perimeter, respectively. Each corner has a locking portion, and the first end 21 and the second end 22 engage with the locking portions at the two corners, effectively preventing the first edge banding 2 from detaching from the glass substrate 1. For example, the locking portions at the two corners are both grooves 3 (such as...). Figure 5 As shown in the figure, the grooved corners are less prone to damage compared to the right-angled corners.

[0054] In some embodiments, the perimeter includes multiple edges 11. For example... Figure 5 , Figure 6 As shown, the exposed edge 112 includes at least one edge 11, that is, at least one edge 11 of the periphery is exposed outside the first edge 2 and is not covered by the first edge 2. Alternatively, the exposed edge 112 is a part of an edge 11, that is, a part of an edge 11 of the periphery is exposed outside the first edge 2 and is not covered by the first edge 2.

[0055] In one example, the perimeter includes three edges 11, the first and second edges of which are completely enclosed by the first edging 2; the third edge is completely exposed outside the first edging 2, or a portion of the third edge is exposed outside the first edging 2 and another portion is enclosed by the first edging 2.

[0056] In another example, such as Figure 5 As shown, the perimeter includes four edges, of which edges 101, 102, and 103 are all enclosed by the first edging 2; edge 104 is entirely exposed outside the first edging 2 (e.g., ...). Figure 5 (as shown in the figure), or a portion of edge 104 is exposed outside the first binding edge 2 and another portion is wrapped by the first binding edge 2 (not shown in the figure). In this example, edges 101, 102 and 103 constitute the wrapped edge 111, and edge 104 is the exposed edge 112.

[0057] In yet another example, such as Figure 6 As shown, the perimeter includes four edges. Edge 106 is completely enclosed by the first binding edge 2. A portion 1051 of edge 105 and a portion 1071 of edge 107 are enclosed by the first binding edge 2. Another portion 1052 of edge 105 and another portion 1072 of edge 107 are exposed outside the first binding edge and not enclosed by the first binding edge 2. Edge 108 is completely exposed outside the first binding edge 2 and not enclosed by the first binding edge 2. In this example, edge 106, a portion 1051 of edge 105, and a portion 1071 of edge 107 constitute the enclosed edge 111, and edge 108, another portion 1052 of edge 105, and another portion 1072 of edge 107 constitute the exposed edge 112.

[0058] In some embodiments, such as Figure 5 , Figure 6 As shown, the periphery includes at least three edges 11, and the wrapping edge 111 includes at least two edges 11. The at least two edges 11 may be edges 11 connected in sequence, and at least one of the at least two edges 11 is provided with one or more snap-fit ​​portions.

[0059] Optionally, each of the at least two edges 11 is provided with one or more snap-fit ​​portions.

[0060] Optionally, some edges 11 are provided with one or more snap-fit ​​portions, while the remaining edges 11 are not provided with snap-fit ​​portions. For example, in Figure 5 In the example, no snap-fit ​​part is provided on edge 102, while grooves 3 are provided on edges 101 and 103. Figure 6 In the example, no snap-fit ​​part is provided on edge 106, and grooves 3 are provided on edges 105 and 107.

[0061] In some embodiments, such as Figure 5 , Figure 6 As shown, the first edge 2 extends continuously along the wrapping edge 111 of the glass substrate 1, that is, the first edge 2 is an integral structure. The first edge 2 can be formed by injection molding and wrapping part of the periphery of the glass substrate 1.

[0062] In some embodiments, such as Figure 7 and Figure 8 As shown, the glass edging assembly also includes a second edging 5, which wraps around at least a portion of the first edging 2 and the entire or part of the periphery of the glass substrate 1. Figure 7 In the diagram, the two leads corresponding to the label "2" point to the inner and outer edges of the first edging 2, respectively, and the two leads corresponding to the label "5" point to the inner and outer edges of the second edging 5, respectively.

[0063] The first edging 2 can be a rigid edging, which can serve as a guide rail to guide the lifting and lowering of the glass. The material of the rigid edging can be one or more of PP, PVC, PA, POM, PC, ABS, and SAN.

[0064] The second edge banding 5 can be a soft edge banding, which can serve as an outer covering layer for the glass, or as an edge banding tongue to provide a sealing function, or to provide a mounting or support function. The second edge banding 5 has lower dimensional stability than the first edge banding 2, and the material of the soft edge banding can be one or more of TPE, PVC, PU, ​​and EPDM.

[0065] Figure 7 This is a schematic diagram of the structure of a glass edging assembly according to an embodiment of this application. Figure 7 As shown, the second edging 5 wraps around the entire circumference of the glass substrate 1, including the first edging 2 and the periphery of the glass substrate 1. The first edging 2 has an extension strip 23 that is not wrapped by the second edging 5.

[0066] Figure 8 for Figure 7 A cross-sectional view along line AA. (See diagram below.) Figure 8As shown, at the edge 102 of the glass substrate 1, the second edging 5 wraps around a portion of the glass substrate 1 adjacent to the first edging 2, but does not wrap around the other portion of the first edging 2 opposite to the glass substrate 1, so that the other portion of the first edging 2 forms a guide groove 25 not covered by the second edging 5. The guide groove 25 can be used to guide the raising and lowering of the vehicle glass.

[0067] exist Figure 8 In the example, the second edging 5 is disposed on both the inner and outer sides of the edge 102 of the glass substrate 1, and is sealed to both the inner surface 12 and the outer surface 13 of the glass substrate 1. Alternatively, the second edging 5 may be disposed on only one side of the inner and outer sides of the edge 102 of the glass substrate 1, and not on the other side.

[0068] Figure 9 for Figure 7 A cross-sectional view along line BB. (See diagram below.) Figure 9 As shown, at the edge 101 of the glass substrate 1, the second edging 5 completely covers the first edging 2. The outer surface of the second edging 5 facing away from the glass substrate 1 is provided with a lip 51, which is used to contact the body sheet metal to give the edging better sealing performance in terms of dustproof, waterproof, windproof and noise reduction.

[0069] exist Figure 9 In the example, the second edging 5 is disposed on both the inner and outer sides of the edge 101 of the glass substrate 1, and is sealed to both the inner surface 12 and the outer surface 13 of the glass substrate 1. Alternatively, the second edging 5 may be disposed on only one side of the inner and outer sides of the edge 101 of the glass substrate 1, and not on the other side.

[0070] Figure 10 for Figure 7 A cross-sectional view along the CC line. (See diagram below.) Figure 10 As shown, at the edge 104 of the glass substrate 1, the second edging 5 directly wraps around the edge 104 of the glass substrate 1. A lip 51 is provided on the outer surface of the second edging 5 facing away from the glass substrate 1.

[0071] exist Figure 10 In this example, the second edging 5 is disposed on the outer side of the edge 104 of the glass substrate 1 and is sealed to the inner surface 12, but not on the inner side of the edge 104 of the glass substrate 1. Alternatively, the second edging 5 may be disposed on both the inner and outer sides of the edge 104 of the glass substrate 1.

[0072] Figure 11 This is a structural schematic diagram of a glass edging assembly according to another embodiment of this application. (See attached diagram.) Figure 11 As shown, the second edging 5 surrounds the entire circumference of the glass substrate 1, enclosing the first edging 2 and the periphery of the glass substrate 1. The first edging 2 has a protruding plate 24 that is not enclosed by the second edging 5.

[0073] Figure 12 for Figure 11 A schematic cross-sectional view along the DD line. (See diagram below.) Figure 12 As shown, a first hook 242 is provided on the outer surface 241 of the protruding plate 24, an outer trim panel 6 is provided on the outer side of the first edging 2, and a second hook 61 is provided on the outer trim panel 6. The first hook 242 and the second hook 61 are engaged to fix the outer trim panel 6 to the outer side of the first edging 2. The outer trim panel 6 can improve the appearance of the car and also improve the car's grade.

[0074] exist Figure 12 In the example, the second edging 5 is disposed on the outer and inner sides of the edge 106 of the glass substrate 1 and is sealed to the inner surface 12 and the outer surface 13 of the glass substrate. Alternatively, the second edging 5 may be disposed on one side of the inner and outer sides of the edge 106 of the glass substrate 1, but not on the other side.

[0075] In some embodiments, the process for preparing the glass edging assembly of this application includes the following steps:

[0076] First, the raw materials of the glass substrate and the first edge 2 are placed into the first mold cavity, wherein the raw materials of the first edge 2 are placed at a predetermined part of the periphery of the glass substrate, and the first edge 2 that wraps around the part of the periphery of the glass substrate and is engaged with the snap-fit ​​part is obtained by injection molding process, and injection molded semi-finished product is obtained.

[0077] Then, the injection-molded semi-finished product and the raw material of the second edge 5 are placed into the second mold cavity, wherein the raw material of the second edge 5 is placed at a predetermined position, such as on part of the first edge 2 and the entire periphery of the glass substrate 1. The second edge 5, which wraps at least a part of the first edge 2 and the entire or part of the periphery of the glass substrate 1, is obtained through the injection molding process, and the injection-molded finished product is obtained, that is, the injection molding process of the glass edge assembly is completed.

[0078] The present disclosure has been described above with reference to specific embodiments. However, those skilled in the art should understand that these descriptions are exemplary and not intended to limit the scope of protection of the present disclosure. Those skilled in the art can make various modifications and variations to the present disclosure based on its spirit and principles, and these modifications and variations are also within the scope of the present disclosure.

Claims

1. A glass edging assembly, comprising a glass substrate and a first edging; The glass substrate has a periphery, a portion of which is wrapped by the first edging to form a wrapped edge, and another portion of which is exposed outside the first edging to form an exposed edge. The edge of the package is provided with at least one snap-fit ​​portion, which snaps into the first edge of the package to prevent the first edge of the package from detaching from the edge of the package; wherein At least one of the latching portions is a protrusion that protrudes from the wrapping edge toward the glass substrate, and the first wrapping edge wraps around the protrusion to latch with the protrusion.

2. The glass edging assembly according to claim 1, wherein, At least one of the snap-fit ​​portions is a groove recessed from the wrapping edge toward the glass substrate, and the first wrapping edge fills the groove to snap into the groove.

3. The glass edging assembly according to claim 2, wherein, The depth of the groove is not less than 1.0 mm.

4. The glass edging assembly according to claim 1, wherein, The height of the protrusion is not less than 1.0 mm.

5. The glass edging assembly according to claim 1, wherein, The perimeter includes multiple edges; The exposed edge includes at least one edge, or the exposed edge is part of an edge.

6. The glass edging assembly according to claim 1, wherein, The perimeter includes at least three edges; The package edge includes at least two edges; At least one of the at least two edges is provided with one or more of the said snap-fit ​​portions.

7. The glass edging assembly according to claim 1, wherein, The first edge has a first end and a second end opposite to each other in the direction surrounding the edge of the package. The edge of the package is provided with at least two snap-fit ​​portions corresponding to the first end and the second end, and the first end and the second end snap-fit ​​with the snap-fit ​​portions respectively.

8. The glass edging assembly according to claim 7, wherein, The first end and the second end are respectively located at two corners of the perimeter, and the two corners are respectively provided with the snap-fit ​​part, and the first end and the second end are snap-fitted with the snap-fit ​​part at the two corners respectively.

9. The glass edging assembly according to claim 1, wherein, The first edge extends continuously along the edge of the package.

10. The glass edging assembly according to claim 1, wherein, Also includes: The second edging wraps around at least a portion of the first edging wrap and the entire or part of the periphery of the glass substrate.

11. The glass edging assembly according to claim 10, wherein, The first edge banding is a rigid edge banding, and the second edge banding is a soft edge banding.

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