Decorative connecting piece for connecting plates with different thicknesses

Abstract

The utility model belongs to the technical field of plate connection, and discloses a decorative connecting piece for connecting plates with different thicknesses, the decorative connecting piece comprises a decorative part and a connecting part, the connecting part is located between two adjacent plates with different thicknesses, and the decorative part is located at the end part of a thicker plate and located at the side part of a thinner plate; the decoration part is provided with a decoration face used for shielding the exposed end face, caused by the thickness difference, of the thick plate and the thin plate. When the decorative connecting piece is used, the connecting part is placed between the thicker plate and the thinner plate, so that the decorative connecting piece is fixed under the extrusion action of the thicker plate and the thinner plate, the thicker plate and the thinner plate are connected, the decorative part shields the exposed end face of the thicker plate, and the decorative connecting piece is more convenient to use. The thicker plate and the thinner plate are transited under the action of the decorative surface, so that the use experience of a user is improved; in addition, the installation efficiency of the decorative connecting piece is greatly improved, and then the construction efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of plate connection, and particularly relates to a decorative connecting piece for connecting plates with different thicknesses. BACKGROUND

[0002] A clean room refers to a room designed to discharge pollutants such as particles, harmful air and bacteria in the air within a certain range, and to control the temperature, cleanliness, indoor pressure, air flow velocity and distribution, noise and vibration, lighting and static electricity in the room within a certain requirement range. Since the clean room has a high requirement for cleanliness, the enclosure system should be flat and smooth, crack-free, tightly jointed and free of particle shedding to avoid dust accumulation and facilitate cleaning, and thus the clean plate is developed.

[0003] At present, when the clean plate is constructed, a middle-aluminum profile is used to connect two adjacent clean plates. However, since different thicknesses of clean plates are used according to different requirements during the construction of the clean room, the thicknesses of the two adjacent clean plates are different, the middle-aluminum profile cannot be used for connection, and the end surface of the thicker clean plate protrudes from the side of the thinner clean plate, so a decorative round corner is needed to shield the protruding end surface, so that the thicker clean plate and the thinner clean plate can be smoothly connected, thereby improving the user experience. Therefore, how to connect clean plates with different thicknesses and quickly install a decorative round corner becomes a technical problem to be solved. CONTENT OF THE INVENTION

[0004] The application provides a decorative connecting piece for connecting plates with different thicknesses, so as to connect clean plates with different thicknesses and quickly install a decorative round corner.

[0005] The technical scheme adopted by the application is as follows:

[0006] The decorative connecting piece for connecting plates with different thicknesses comprises a decorative part and a connecting part, the connecting part is located between two adjacent plates with different thicknesses, the decorative part is located at the end of the thicker plate and at the side of the thinner plate, and the decorative part has a decorative surface for shielding the exposed end surface of the thicker plate and the thinner plate due to the difference in thickness.

[0007] By adopting the technical scheme, when the decorative connecting piece is used, the connecting portion is placed between the thick plate and the thin plate to be fixed to the decorative connecting piece under the extrusion of the thick plate and the thin plate, to realize the connection of the thick plate and the thin plate, and the exposed end surface of the thick plate is exposed on the side of the thin plate due to the thickness difference between the thick plate and the thin plate, so that the decorative portion shields the exposed end surface of the thick plate, and the thick plate and the thin plate are transitioned under the action of the decorative surface, thereby improving the use experience of the user; in addition, the connecting piece for connecting the thick plate and the thin plate and the decorative piece are integrated, which can greatly improve the installation efficiency of the decorative connecting piece, thereby greatly improving the construction efficiency.

[0008] Optionally, the connecting portion has a first connecting protrusion and a second connecting protrusion, the first connecting protrusion and the second connecting protrusion are respectively located on opposite sides of the connecting portion, and the first connecting protrusion can extend into the groove of the thick plate, and the second connecting protrusion can extend into the groove of the thin plate.

[0009] By adopting the technical scheme, after the decorative connecting piece is installed between the thick plate and the thin plate, the first connecting protrusion extends into the groove of the thick plate, and the second connecting protrusion extends into the groove of the thin plate, to increase the connection stability of the connecting portion and the thick plate and the thin plate, thereby greatly improving the limiting effect of the connecting portion on the thick plate and the thin plate.

[0010] Optionally, the first connecting protrusion and the second connecting protrusion are hollow inside.

[0011] By adopting the technical scheme, since the first connecting protrusion and the second connecting protrusion are hollow inside, the weight of the decorative connecting piece is reduced, thereby facilitating the carrying of the decorative connecting piece, and the amount of raw materials required for the production of the decorative connecting piece is reduced, thereby reducing the production cost of the decorative connecting piece.

[0012] Optionally, opposite sides of the first connecting protrusion and the second connecting protrusion are provided with guide surfaces.

[0013] By adopting the technical scheme, since the opposite sides of the first connecting protrusion and the second connecting protrusion are provided with guide surfaces, the guide surfaces can guide the first connecting protrusion and the second connecting protrusion during installation of the decorative connecting piece, so that the first connecting protrusion can more easily extend into the groove of the thick plate, and the second connecting protrusion can more easily extend into the thin plate, thereby improving the installation efficiency of the decorative connecting piece, and the decorative connecting piece can also adjust the thick plate or the thin plate, so that the two can be aligned, thereby greatly improving the construction efficiency.

[0014] Optionally, the connecting part is provided with a positioning rib at one end away from the decorative part, and the two ends of the positioning rib abut against the end of the thicker plate and the thinner plate respectively.

[0015] By adopting the above technical scheme, after the decorative connecting piece is installed between the thicker plate and the thinner plate, the two ends of the positioning rib abut against the end of the thicker plate and the thinner plate respectively, so that the positioning rib positions the decorative connecting piece, to avoid the situation that the decorative connecting piece is deflected due to the extrusion of the thicker plate and the thinner plate, thereby reducing the installation difficulty of the decorative connecting piece, and the positioning rib can also position the end of the thicker plate and the thinner plate, so that the gap between the thicker plate and the thinner plate remains constant, thereby greatly improving the construction efficiency.

[0016] Optionally, the positioning rib has a width direction, and the width direction of the positioning rib is perpendicular to the connecting part.

[0017] Or, the two ends of the positioning rib each have a plane parallel to the end face of the thicker plate.

[0018] By adopting the above technical scheme, since the width direction of the positioning rib is perpendicular to the connecting part, the two end faces in the width direction of the positioning rib are parallel to the connecting part, so as to increase the contact area of the positioning rib with the thicker plate and the thinner plate, thereby increasing the stability of the positioning rib and the positioning effect of the positioning rib on the thicker plate and the thinner plate.

[0019] Since the two ends of the positioning rib each have a plane parallel to the end face of the thicker plate, the contact area of the positioning rib with the thicker plate and the thinner plate is increased, thereby increasing the stability of the positioning rib and the positioning effect of the positioning rib on the thicker plate and the thinner plate.

[0020] Optionally, the decorative surface is an arc surface.

[0021] By adopting the above technical scheme, since the decorative surface is an arc surface, the connection between the thicker plate and the thinner plate can smoothly transition under the action of the decorative surface, thereby improving the user experience.

[0022] Optionally, the connecting part has a first connecting protrusion, and the arc surface is convexly arranged towards the direction where the first connecting protrusion is located.

[0023] By adopting the above technical scheme, since the arc surface is convexly arranged towards the direction where the first connecting protrusion is located, on the one hand, the connection between the thicker plate and the thinner plate smoothly transitions under the action of the decorative surface, and on the other hand, compared with the arc surface being convexly arranged towards the direction away from the first connecting protrusion, the space occupied by the decorative part is reduced, so as to ensure the space in the room.

[0024] Optionally, the first connecting protrusion and the second connecting protrusion are fixedly connected to the connecting portion by fasteners, and the decorative portion is solid.

[0025] By adopting the above technical solution, since the first connecting protrusion and the second connecting protrusion are fixedly connected to the connecting portion by fasteners, the positions of the first connecting protrusion and the second connecting protrusion can be adjusted, and since the decorative portion is solid, the two sides of the decorative portion can be cut to enable the decorative connecting piece to be adapted to the connection of plate materials with different thickness differences, thereby increasing the flexibility of the decorative connecting piece.

[0026] Optionally, the decorative portion has a first back surface facing the end surface of the thicker plate material, and the first back surface is provided with a cutting reference line arranged along the width direction of the first back surface.

[0027] By adopting the above technical solution, since the first back surface is provided with a cutting reference line arranged along the width direction of the first back surface, the cutting reference line can be referred to when cutting the decorative portion, thereby facilitating the cutting of the decorative portion, reducing the difficulty of cutting the decorative portion, and enabling the cutting of the decorative portion to be more smooth.

[0028] As a result of adopting the above technical solution, the application has the following beneficial effects:

[0029] 1. The decorative connecting piece in the application comprises a decorative portion and a connecting portion, the connecting portion is located between two adjacent plate materials with different thicknesses, the decorative portion is located at the end of the thicker plate material and the side of the thinner plate material, the decorative portion has a decorative surface for shielding the exposed end surface of the thicker plate material and the thinner plate material due to the thickness difference, when using the decorative connecting piece in the application, the connecting portion is placed between the thicker plate material and the thinner plate material to realize the fixation of the decorative connecting piece under the extrusion of the thicker plate material and the thinner plate material, to realize the connection of the thicker plate material and the thinner plate material, and the decorative portion is located at the exposed end surface of the thicker plate material exposed to the side of the thinner plate material due to the thickness difference between the thicker plate material and the thinner plate material, so that the decorative portion shields the exposed end surface of the thicker plate material, and the thicker plate material and the thinner plate material are transitioned under the action of the decorative surface, to improve the user's experience; in addition, the decorative connecting piece for connecting the thicker plate material and the thinner plate material is integrated with the decorative piece, which can greatly improve the installation efficiency of the decorative connecting piece, thereby greatly improving the construction efficiency.

[0030] 2. The connecting part in the application has a first connecting protrusion and a second connecting protrusion, which are respectively located on opposite sides of the connecting part, and the first connecting protrusion can extend into the groove of the thicker plate, and the second connecting protrusion can extend into the groove of the thinner plate, so as to increase the connection stability of the connecting part with the thicker plate and the thinner plate, thereby greatly improving the limiting effect of the connecting part on the thicker plate and the thinner plate.

[0031] 3. The first connecting protrusion and the second connecting protrusion in the application are hollow inside, thereby reducing the weight of the decorative connecting piece, achieving the effect of facilitating the carrying of the decorative connecting piece, and reducing the amount of raw materials required during the production of the decorative connecting piece, thereby reducing the production cost of the decorative connecting piece. BRIEF DESCRIPTION OF DRAWINGS

[0032] The accompanying drawings, which are included to provide a further understanding of the application, constitute a part of the application and illustrate the illustrative embodiments of the application and its description serve to explain the application, and do not constitute an improper limitation on the application. In the drawings:

[0033] Figure 1 is a schematic view of the connection structure of the decorative connecting piece and the thicker plate and the thinner plate according to an embodiment of the application;

[0034] Figure 2 is a schematic view of the structure of the decorative connecting piece according to an embodiment of the application;

[0035] Figure 3 is another perspective view of the structure of the decorative connecting piece according to an embodiment of the application;

[0036] Figure 4 is a schematic view of the structure of the decorative connecting piece according to another embodiment of the application;

[0037] Figure 5 is a schematic view of the structure of the decorative connecting piece according to another embodiment of the application.

[0038] Reference signs:

[0039] 1, decorative part; 11, decorative surface; 12, cutting reference line; 2, connecting part; 21, first connecting protrusion; 211, guide surface; 22, second connecting protrusion; 23, positioning rib; 3, thicker plate; 4, thinner plate. DETAILED DESCRIPTION

[0040] In order to more clearly illustrate the overall concept of the application, the following will be described in detail with reference to the accompanying drawings.

[0041] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced without the specific details. In other instances, well-known methods, procedures, components, and circuits have not been described in detail so as not to unnecessarily obscure aspects of the present application.

[0042] In addition, in the description of the present application, it needs to be understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0043] In the present application, unless specifically defined and limited otherwise, the terms "mount", "connect", "connection", "fixed", and the like should be broadly understood, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection, and can also be communication; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0044] In the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. In the description of the specification, the description of the terms "embodiment", "example", "one embodiment", "example" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0045] Referring to Figures 1 to 5 , a decorative connecting piece for connecting different thickness plates is disclosed, which comprises a decorative part 1 and a connecting part 2, the connecting part 2 is located between two adjacent plates of different thickness, the decorative part 1 is located at the end of the thicker plate 3 and at the side of the thinner plate 4, and the decorative part 1 has a decorative surface 11 for shielding the exposed end surface of the thicker plate 3 and the thinner plate 4 due to the difference in thickness.

[0046] When the decorative connector in the present application is used, the connecting portion 2 is placed between the thicker plate 3 and the thinner plate 4 to realize the fixation of the decorative connector under the extrusion of the thicker plate 3 and the thinner plate 4, to realize the connection of the thicker plate 3 and the thinner plate 4, and at the same time, the exposed end surface of the thicker plate 3 exposed to the side of the thinner plate 4 due to the thickness difference between the thicker plate 3 and the thinner plate 4 is located at the decorative portion 1, so that the decorative portion 1 shields the exposed end surface of the thicker plate 3, and the thicker plate 3 and the thinner plate 4 are both transitioned under the action of the decorative surface 11 to improve the user's experience; in addition, the decorative connector for connecting the thicker plate 3 and the thinner plate 4 is integrated with the decorative connector, which can greatly improve the installation efficiency of the decorative connector, and further greatly improve the construction efficiency.

[0047] In order to improve the stability of the decorative connector, after the decorative connector is installed between the thicker plate 3 and the thinner plate 4, the two sides of the decorative portion 1 need to be glued to block the gap between the decorative portion 1 and the thicker plate 3 and the thinner plate 4, so as to increase the stability of the decorative connector.

[0048] In a preferred embodiment, referring to Figures 1 to 5 , the connecting portion 2 has a first connecting protrusion 21 and a second connecting protrusion 22, the first connecting protrusion 21 and the second connecting protrusion 22 are respectively located on the opposite sides of the connecting portion 2, and the first connecting protrusion 21 can extend into the groove of the thicker plate 3, and the second connecting protrusion 22 can extend into the groove of the thinner plate 4.

[0049] Specifically, after the decorative connector is installed between the thicker plate 3 and the thinner plate 4, the first connecting protrusion 21 extends into the groove of the thicker plate 3, and the second connecting protrusion 22 extends into the groove of the thinner plate 4, to increase the connection stability of the connecting portion 2 and the thicker plate 3 and the thinner plate 4, thereby greatly improving the limiting effect of the connecting portion 2 on the thicker plate 3 and the thinner plate 4.

[0050] It should be noted that if the thickness difference between the thicker plate 3 and the thinner plate 4 is large, at least part of the first connecting protrusion 21 may be connected to the decorative portion 1, or the first connecting protrusion 21 is entirely connected to the decorative portion 1.

[0051] Further, referring to Figures 1 to 4 , the first connecting protrusion 21 and the second connecting protrusion 22 are hollow inside, thereby reducing the weight of the decorative connector to facilitate the transportation of the decorative connector, and reducing the amount of raw materials required during the production of the decorative connector to reduce the production cost of the decorative connector.

[0052] Still further, referring to Figure 4, the opposite sides of the first connecting protrusion 21 and the second connecting protrusion 22 are provided with guide surfaces 211, which can guide the first connecting protrusion 21 and the second connecting protrusion 22 when the decorative connecting piece is installed, so that the first connecting protrusion 21 can be more easily inserted into the groove of the thicker plate 3, and the second connecting protrusion 22 can be more easily inserted into the thinner plate 4, thereby improving the installation efficiency of the decorative connecting piece, and the decorative connecting piece can also adjust the thicker plate 3 or the thinner plate 4 to align them, thereby greatly improving the construction efficiency.

[0053] In a preferred embodiment, referring to Figures 1 to 5 , the connecting part 2 is provided with a positioning rib 23 at one end away from the decorative part 1, and the two ends of the positioning rib 23 abut the end portions of the thicker plate 3 and the thinner plate 4, respectively.

[0054] Specifically, after the decorative connecting piece is installed between the thicker plate 3 and the thinner plate 4, the two ends of the positioning rib 23 abut the end portions of the thicker plate 3 and the thinner plate 4, respectively, so that the positioning rib 23 positions the decorative connecting piece to avoid the situation that the decorative connecting piece is deflected due to the extrusion of the thicker plate 3 and the thinner plate 4, thereby reducing the installation difficulty of the decorative connecting piece, and the positioning rib 23 can also position the end portions of the thicker plate 3 and the thinner plate 4 to keep the gap between the thicker plate 3 and the thinner plate 4 constant, thereby greatly improving the construction efficiency.

[0055] The present application does not specifically limit the angle relationship between the positioning rib 23 and the connecting part 2, which can adopt any one of the following embodiments:

[0056] Embodiment 1, in this embodiment, referring to Figures 1 to 5 , the positioning rib 23 has a width direction, and the width direction of the positioning rib 23 is perpendicular to the connecting part 2, so that the two end faces in the width direction of the positioning rib 23 are parallel to the connecting part 2, thereby increasing the contact area of the positioning rib 23 with the thicker plate 3 and the thinner plate 4, and thereby increasing the stability of the positioning rib 23 and the positioning effect of the positioning rib 23 on the thicker plate 3 and the thinner plate 4.

[0057] Embodiment 2, in this embodiment, the two ends of the positioning rib 23 each have a plane parallel to the end face of the thicker plate 3, thereby increasing the contact area of the positioning rib 23 with the thicker plate 3 and the thinner plate 4, and thereby increasing the stability of the positioning rib 23 and the positioning effect of the positioning rib 23 on the thicker plate 3 and the thinner plate 4.

[0058] In this embodiment, the positioning rib 23 can be perpendicular to the connecting part 2, or it can be non-perpendicular to the connecting part 2, as long as the planes at the two ends of the positioning rib 23 are parallel to the end portions of the thicker plate 3.

[0059] The shape of the decorative surface 11 is not limited in the present application, preferably, referring to Figures 1 to 5 , the decorative surface 11 is an arc surface, which can make the connection between the thicker plate 3 and the thinner plate 4 transition smoothly under the action of the decorative surface 11, so as to improve the user experience.

[0060] Further, referring to Figures 1 to 5 , the connecting part 2 has a first connecting protrusion 21, and the arc surface is protrudingly arranged towards the direction where the first connecting protrusion 21 is located, which on the one hand realizes the smooth transition of the connection between the thicker plate 3 and the thinner plate 4 under the action of the decorative surface 11, and on the other hand, compared with the arc surface being protrudingly arranged towards the direction away from the first connecting protrusion 21, the space occupied by the decorative part 1 is reduced, so as to ensure the space in the room.

[0061] In other embodiments, the decorative surface 11 can also be a wave surface or a stepped surface.

[0062] The connecting relationship between the first connecting protrusion 21 and the second connecting protrusion 22 and the connecting part 2 is not limited in the present application, which can adopt any one of the following embodiments:

[0063] Embodiment one, in the present embodiment, referring to Figure 5 , the connecting part 2 has a first connecting protrusion 21 and a second connecting protrusion 22, the first connecting protrusion 21 and the second connecting protrusion 22 are fixedly connected to the connecting part 2 by fasteners, and the decorative part 1 is solidly arranged, which can adjust the positions of the first connecting protrusion 21 and the second connecting protrusion 22, and at the same time, since the decorative part 1 is solidly arranged, the two sides of the decorative part 1 can be cut, so that the decorative connecting piece can be adapted to the connection of plates with different thickness differences, so as to increase the flexibility of the decorative connecting piece.

[0064] Further, referring to Figure 5 , the decorative part 1 has a first back surface facing the end surface of the thicker plate 3, and the first back surface is provided with a cutting reference line 12 arranged along the width direction of the first back surface, which can be used as a reference when cutting the decorative part 1, so as to facilitate the cutting of the decorative part 1, thereby reducing the cutting difficulty of the decorative part 1, and the cutting of the decorative part 1 is more smooth.

[0065] More preferably, the cutting reference line 12 is uniformly spaced in the width direction of the first back surface, so as to facilitate the workers to find the required cutting position, so as to avoid the use of a ruler to measure the decorative part 1 when cutting the decorative part 1, thereby improving the cutting efficiency of the decorative part 1.

[0066] The structure of the fastener is not specifically limited in the present application, which can be a screw, a bolt pair, or other structures capable of fixing the first connecting protrusion 21 and the second connecting protrusion 22.

[0067] In the second embodiment, in the present embodiment, the first connecting protrusion 21 and the second connecting protrusion 22 are integrally formed with the connecting portion 2, that is, the decorative connecting piece is an integrally formed structural member, so as to ensure the structural strength of the decorative connecting piece. Figures 1 to 4

[0068] The matters not described in the present application can be implemented by using or referring to the existing technology.

[0069] Each of the embodiments in the present specification is described in a progressive manner, and the same or similar parts between the embodiments can be understood by mutual reference. Each of the embodiments mainly describes the differences from other embodiments.

[0070] The above only describes the embodiments of the present application and is not intended to limit the present application. The present application can have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the scope of the claims of the present application.​

Claims

1. A trim connector for connecting different thickness panels, characterized by, The connecting part (2) is located between two adjacent plates with different thicknesses, and the decorative part (1) is located at the end of the thicker plate (3) and the side of the thinner plate (4), and the decorative part (1) has a decorative surface (11) for covering the exposed end surface of the thicker plate (3) and the thinner plate (4) due to the difference in thickness.

2. The trim connector for connecting different thickness panels according to claim 1, wherein, The connecting part (2) has a first connecting protrusion (21) and a second connecting protrusion (22), and the first connecting protrusion (21) and the second connecting protrusion (22) are located on opposite sides of the connecting part (2), and the first connecting protrusion (21) can extend into the groove of the thicker plate (3), and the second connecting protrusion (22) can extend into the groove of the thinner plate (4).

3. The trim connector for connecting different thickness panels according to claim 2, wherein, The first connecting protrusion (21) and the second connecting protrusion (22) are hollow inside.

4. The trim connector for connecting different thickness panels according to claim 2, wherein, The opposite sides of the first connecting protrusion (21) and the second connecting protrusion (22) are provided with guide surfaces (211).

5. The trim connector for connecting different thickness panels according to any one of claims 1-4, wherein, The connecting part (2) is provided with a positioning rib (23) at one end away from the decorative part (1), and the two ends of the positioning rib (23) abut the end of the thicker plate (3) and the thinner plate (4) respectively.

6. The trim connector for connecting different thickness panels according to claim 5, wherein, The positioning rib (23) has a width direction, and the width direction of the positioning rib (23) is perpendicular to the connecting part (2). Or, the two ends of the positioning rib (23) have a plane parallel to the end surface of the thicker plate (3).

7. The trim connector for connecting different thickness panels according to any one of claims 1-4, wherein, The decorative surface (11) is an arc surface.

8. The trim connector for connecting different thickness panels according to claim 7, wherein The connecting part (2) has a first connecting protrusion (21), and the arc surface is convexly arranged towards the direction of the first connecting protrusion (21).

9. The trim connector for connecting different thickness panels of claim 2, wherein, The first connecting protrusion (21) and the second connecting protrusion (22) are fixedly connected to the connecting part (2) by fasteners, and the decorative part (1) is solid.

10. The trim connector for connecting different thickness panels according to claim 9, wherein, The decorative part (1) has a first back surface facing the end surface of the thicker plate (3), and the first back surface is provided with a cutting reference line (12) arranged along the width direction of the first back surface.

Images