vehicle

Abstract

To provide a vehicle that is able to make an exposure portion and a non-exposure portion of a slide door, which are near the door, almost equal in brightness.SOLUTION: A vehicle has a vehicle body panel 2 and a slide door. The vehicle body panel 2 disposed on an upper part of the slide door has: an exposure portion 4 that is exposed to the outside of the vehicle when the slide door is closed; and a non-exposure portion that is not exposed to the outside of the vehicle when the slide door is closed. The exposure portion includes an electro-deposition coating layer 41, an intermediate coating layer 42 disposed in contact with one surface of the electro-deposition coating layer 41, a base coating layer 43 disposed in contact with one surface of the intermediate coating layer 42, a bright coating layer 44 disposed in contact with one surface of the base coating layer 43, and a clear coating layer 45 disposed in contact with one surface of the bright coating layer 44. The non-exposure portion includes an electro-deposition coating layer, an intermediate coating layer disposed in contact with one surface of the electro-deposition coating layer, and a base coating layer disposed in contact with one surface of the intermediate coating layer and does not include a bright coating layer or a clear coating layer.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a vehicle. [Background technology]

[0002] Conventionally, in the painting of vehicles, components are painted with electrodeposition coating, undercoat coating, topcoat coating, and, if necessary, clear coating. It is known that each coating step forms a multi-layer coating. It is also known that a luster pigment is added to the coating.

[0003] More specifically, a coating method that includes the following steps is known as a coating method: (a) electrocoating an object to be coated and baking the coating, (b) applying an intermediate coating, (c) applying a color intermediate coating (color base), (d) baking the coating, (e) applying a base coat containing a luster pigment and / or a coloring pigment, (f) applying a clear coating, and (g) baking (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 11-90317 Summary of the Invention [Problem to be solved by the invention]

[0005] In the painting of the outer panels of an automobile, the parts that are exposed even when the door is closed (hereinafter referred to as the exposed parts) are required to have an excellent appearance. On the other hand, the appearance required for the parts that are not exposed when the door is closed and are only exposed when the door is open (hereinafter referred to as the non-exposed parts) is relatively low compared to the appearance required for the exposed parts. Therefore, from the viewpoint of reducing costs, when painting the non-exposed parts, it is considered to paint only (c) a color intermediate paint after (a) electrocoating, and omit other painting.

[0006] On the other hand, in the case of automobile painting, from the viewpoint of appearance, it is required that the brightness of the exposed portion and the brightness of the non-exposed portion when exposed to direct light are approximately the same.

[0007] In this regard, in the above-mentioned painting method, if the application of (e) the base coat containing the luster pigment and / or the color pigment and the application of (f) the clear paint are omitted, the brightness of the unexposed part when exposed to direct light appears higher than the brightness of the exposed part when these are not omitted. Therefore, it is considered to further omit the application of (b) the intermediate paint in the unexposed part, thereby lowering the brightness of the unexposed part when exposed to direct light and making the brightness of the unexposed part and the brightness of the exposed part approximately the same.

[0008] However, in vehicles with sliding doors, the exposed portion of the upper part of the door is easily exposed to direct light, while the non-exposed portion of the upper part of the door (roof portion) is not easily exposed to direct light. Therefore, if the door is painted based on the brightness when exposed to direct light as described above, it is not possible to make the brightness of the exposed portion of the upper part of the door and the non-exposed portion of the upper part of the door (roof portion) of the sliding door equal.

[0009] The present invention provides a vehicle in which the brightness of an exposed portion of an upper part of a sliding door can be made approximately the same as the brightness of a non-exposed portion. [Means for solving the problem]

[0010] The present invention [1] includes a vehicle having a body panel and a sliding door, wherein the body panel disposed above the sliding door has an exposed portion that is exposed to the outside of the vehicle when the sliding door is closed, and a non-exposed portion that is not exposed to the outside of the vehicle when the sliding door is closed, wherein the exposed portion comprises an electrodeposition coating layer, an intermediate coating layer disposed in contact with one side of the electrodeposition coating layer, a base coating layer disposed in contact with one side of the intermediate coating layer, a bright coating layer disposed in contact with one side of the base coating layer and containing a lustrous material, and a clear coating layer disposed in contact with one side of the bright coating layer, and wherein the non-exposed portion comprises an electrodeposition coating layer, an intermediate coating layer disposed in contact with one side of the electrodeposition coating layer, and a base coating layer disposed in contact with one side of the intermediate coating layer, and the vehicle does not comprise the bright coating layer or the clear coating layer. Effect of the Invention

[0011] In the vehicle of the present invention, the exposed portion of the upper part of the sliding door comprises an electrodeposition coating layer, an intermediate coating layer arranged in contact with one side of the electrodeposition coating layer, a base coating layer arranged in contact with one side of the intermediate coating layer, a gloss coating layer arranged in contact with one side of the base coating layer and containing a glossy material, and a clear coating layer arranged in contact with one side of the gloss coating layer, while the non-exposed portion of the upper part of the sliding door comprises an electrodeposition coating layer, an intermediate coating layer arranged in contact with one side of the electrodeposition coating layer, and a base coating layer arranged in contact with one side of the intermediate coating layer, but does not comprise a gloss coating layer or a clear coating layer.

[0012] Therefore, in the vehicle of the present invention, the lightness of the exposed portion and the non-exposed portion of the upper part of the sliding door can be made approximately the same. [Brief description of the drawings]

[0013] [Figure 1] FIG. 1 is a schematic diagram showing an embodiment of a vehicle of the present invention. [Diagram 2] FIG. 2 is a cross-sectional view of the body panel taken along line AA in FIG. [Diagram 3] FIG. 3 is a schematic diagram showing the painting of exposed areas. [Figure 4]FIG. 4 is a schematic diagram showing the painting of the unexposed parts. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] 1 and 2, the vehicle 1 is a sliding door type automobile. The vehicle 1 includes a vehicle body panel 2 and a sliding door 3 attached to the vehicle body panel 2. More specifically, the vehicle body panel 2 includes a rail (not shown) extending along the front-rear direction of the vehicle 1. The sliding door 3 is attached to the rail (not shown). This allows the sliding door 3 to slide along the front-rear direction of the vehicle 1. The rear entrance of the vehicle 1 can be opened and closed by the sliding of the sliding door 3.

[0015] The vehicle body panel 2 and the sliding door 3 include, for example, an outer panel and an inner panel. The vehicle body panel 2 disposed above the sliding door 3 has an exposed portion 4 and a non-exposed portion 5.

[0016] The exposed portion 4 is defined as a portion that is exposed to the outside of the vehicle when the sliding door 3 is closed, and is also exposed to the outside of the vehicle when the sliding door 3 is open. For example, as shown in Fig. 2, the portion of the vehicle body panel 2 above the sliding door 3 that does not face the sliding door 3 in the closed state is the exposed portion 4.

[0017] The non-exposed portion 5 is defined as a portion that is not exposed to the outside of the vehicle when the sliding door 3 is closed, and is exposed to the outside of the vehicle when the sliding door 3 is open. For example, as shown in Fig. 2, in the vehicle body panel 2 above the sliding door 3, a portion facing the sliding door 3 in the closed state is the non-exposed portion 5.

[0018] That is, the exposed portion 4 is a portion that is visible from outside the vehicle 1 when the sliding door 3 closes the rear entrance. The non-exposed portion 5 is a portion that is not visible from outside the vehicle 1 when the sliding door 3 closes the rear entrance.

[0019] The exposed portion 4 and the non-exposed portion 5 may be integrally formed. Alternatively, the exposed portion 4 and the non-exposed portion 5 may be formed as separate bodies and assembled to each other.

[0020] 2, the exposed portion 4 is irradiated with direct light and is visible from the outside of the vehicle 1, and therefore, an excellent appearance is required for the exposed portion 4. Therefore, in the upper part of the sliding door 3, the exposed portion 4 includes an electrodeposition coating layer 41, an intermediate coating layer 42 arranged in contact with one surface of the electrodeposition coating layer 41, a base coating layer 43 arranged in contact with one surface of the intermediate coating layer 42, a shiny coating layer 44 arranged in contact with one surface of the base coating layer 43 and containing a shiny material, and a clear coating layer 45 arranged in contact with one surface of the shiny coating layer 44, as shown in FIG.

[0021] The electrodeposition coating layer 41 is a coating film formed by electrodeposition coating of the vehicle body panel 2. In the electrodeposition coating, although there is no particular limitation, a known electrodeposition paint is used, and a known electrodeposition coating method is adopted. Specifically, the electrodeposition paint may be a known water-based paint. In addition, the electrodeposition coating method may be, for example, cationic electrodeposition coating, anionic electrodeposition coating, etc., and preferably, cationic electrodeposition coating is used.

[0022] The coating film obtained by electrodeposition coating is then heated and dried at an appropriate temperature as necessary to form an electrodeposition coating layer 41. The thickness of the electrodeposition coating layer 41 is not particularly limited and is appropriately set depending on the purpose and application. Although not shown, a sealant can be applied to the surface of the electrodeposition coating layer 41 as necessary.

[0023] The intermediate coating layer 42 is a coating film formed by intermediate coating the surface of the electrodeposition coating layer 41. In the intermediate coating, although there is no particular limitation, a known intermediate coating paint is used, and a known intermediate coating method is adopted. The intermediate coating layer 42 is, for example, a pretreatment layer and has a base color in the coating. More specifically, the intermediate coating paint contains, for example, a gray pigment. In addition, the intermediate coating paint is preferably selected according to the base coating paint described later. For example, the intermediate coating paint is selected so that the brightness of the intermediate coating paint is the same as or similar to the brightness of the base coating paint. In addition, examples of the intermediate coating paint include water-based intermediate coating paint and solvent-based intermediate coating paint. In addition, examples of the intermediate coating coating method include the air spray method, the airless spray method, and the bell coating method, and preferably the bell coating method.

[0024] The coating film obtained by the intermediate coating is then heated and dried at an appropriate temperature as necessary to form an intermediate coating layer 42 on the surface of the electrodeposition coating layer 41. The thickness of the intermediate coating layer 42 is not particularly limited and may be appropriately set depending on the purpose and application.

[0025] The base coating layer 43 is a coating film formed by applying a base topcoat coating (first topcoat coating) to the surface of the intermediate coating layer 42. In the base topcoat coating, although there is no particular limitation, a known base paint is used, and a known base topcoat coating method is adopted. The base coating layer 43 is, for example, a color-developing layer and has a vehicle body color in the coating. More specifically, the base topcoat paint contains, for example, a known pigment corresponding to the vehicle body color. In addition, examples of the base paint include water-based base paint and solvent-based base paint. In addition, examples of the base coating method include an air spray method, an airless spray method, and a bell coating method, and preferably, the bell coating method.

[0026] Then, the coating film obtained by the base topcoat painting is heated at an appropriate temperature as necessary and dried to form a base coating layer 43 on the surface of the intermediate coating layer 42. The thickness of the base coating layer 43 is not particularly limited and may be appropriately set depending on the purpose and application.

[0027] The bright paint layer 44 is a coating film formed by applying a bright topcoat (second topcoat) to the surface of the base paint layer 43. In the bright topcoat, although there is no particular limitation, a known bright paint is used, and a known topcoat painting method is adopted. Specifically, the bright paint may be a water-based paint or a solvent-based paint containing a bright material.

[0028] Examples of the lustrous materials include aluminum powder, flaky aluminum oxide, pearl mica, flaky mica, colored mica, and interference mica. A preferred lustrous material is pearl mica. These lustrous materials can be used alone or in combination of two or more. The content of the lustrous material in the lustrous paint is appropriately set according to the purpose and use.

[0029] Examples of the method for applying the bright paint include the air spray method, the airless spray method, and the bell coating method, and preferably the bell coating method.

[0030] Then, the coating film obtained by the bright topcoat coating is heated at an appropriate temperature as necessary and dried to form a bright coating layer 44 on the surface of the base coating layer 43. The thickness of the bright coating layer 44 is not particularly limited and may be appropriately set depending on the purpose and application.

[0031] The clear coating layer 45 is a coating film formed by applying a clear coating to the surface of the bright coating layer 44. In the clear coating, although there is no particular limitation, a known clear paint is used, and a known clear coating method is adopted. Specifically, examples of the clear paint include water-based clear paint and solvent-based clear paint. Examples of the clear coating method include air spray method, airless spray method, and bell coating method, and preferably, bell coating method is used.

[0032] The coating film obtained by the clear coating is then heated and dried at an appropriate temperature as necessary, to form a clear coating layer 45 on the surface of the bright coating layer 44. The thickness of the clear coating layer 45 is not particularly limited and may be appropriately set depending on the purpose and application.

[0033] The method for laminating each of the above coating films is not particularly limited, and each coating layer may be laminated on a dry paint (wet-on-dry), or each coating layer may be laminated on a wet paint (wet-on-wet), or a combination of these may be used.

[0034] Then, in this method, each of the coating films is baked. The baking conditions are appropriately set depending on the purpose and use. The baking method is not particularly limited. For example, each of the coating films may be applied and then baked in sequence, or all of the coating films may be applied and then baked all at once. A combination of these methods may also be used.

[0035] The above coating film is then baked to obtain the exposed portion 4. That is, the exposed portion 4 includes the electrodeposition coating layer 41 after baking, an intermediate coating layer 42 arranged in contact with one side of the electrodeposition coating layer 41, a base coating layer 43 arranged in contact with one side of the intermediate coating layer 42, a shiny coating layer 44 arranged in contact with one side of the base coating layer 43 and containing a shiny material, and a clear coating layer 45 arranged in contact with one side of the shiny coating layer 44.

[0036] The brightness of the exposed portion 4 is appropriately set depending on the purpose and application.

[0037] As shown in Fig. 2, the non-exposed portion 5 is not exposed to direct light and is not visible from outside the vehicle 1, so excellent appearance is not required. However, if the brightness of the non-exposed portion 5 differs greatly from the brightness of the exposed portion 4, the appearance of the vehicle 1 will be significantly deteriorated. Therefore, the brightness of the non-exposed portion 5 is required to be approximately the same as the brightness of the exposed portion 4. In particular, it is required that the brightness of the non-exposed portion 5 when exposed to direct light is approximately the same as the brightness of the exposed portion 4 when not exposed to direct light.

[0038] Therefore, at the upper part of the sliding door 3, as shown in Figure 4, the non-exposed portion 5 comprises an electrocoat coating layer 51, an intermediate coating layer 52 arranged in contact with one side of the electrocoat coating layer 51, and a base coating layer 53 arranged in contact with one side of the intermediate coating layer 52, and does not comprise a shiny coating layer containing a shiny material or a clear coating layer.

[0039] The electrodeposition coating layer 51 is a coating film formed by electrodeposition coating of the vehicle body panel 2. The electrodeposition coating layer 51 may be the same coating film as the electrodeposition coating layer 41 in the exposed portion 4. The electrodeposition coating layer 51 may be formed, for example, simultaneously with the electrodeposition coating layer 41 in the exposed portion 4. The thickness of the electrodeposition coating layer 51 is not particularly limited and may be appropriately set depending on the purpose and application. Although not shown, a sealant may be applied to the surface of the electrodeposition coating layer 51, if necessary.

[0040] The intermediate coating layer 52 is a coating film formed by applying an intermediate coating to the surface of the electrodeposition coating layer 51. Examples of the intermediate coating layer 52 include the same coating film as the intermediate coating layer 42 in the exposed portion 4. The intermediate coating layer 52 can be formed, for example, simultaneously with the intermediate coating layer 42 in the exposed portion 4. The thickness of the intermediate coating layer 52 is not particularly limited and may be appropriately set depending on the purpose and application.

[0041] The base coating layer 53 is a coating film formed by applying a base topcoat coating to the surface of the intermediate coating layer 52. Examples of the base coating layer 53 include the same coating film as the base coating layer 43 in the exposed portion 4. The base coating layer 53 can be formed, for example, simultaneously with the base coating layer 43 in the exposed portion 4. The thickness of the base coating layer 53 is not particularly limited and may be appropriately set depending on the purpose and application.

[0042] The method for laminating each of the above coating films is not particularly limited, and each coating layer may be laminated on a dry paint (wet-on-dry), or each coating layer may be laminated on a wet paint (wet-on-wet), or a combination of these may be used.

[0043] Then, in this method, each of the coating films is baked. The baking conditions are appropriately set depending on the purpose and use. The baking method is not particularly limited. For example, each of the coating films may be applied and then baked in sequence, or all of the coating films may be applied and then baked all at once. A combination of these methods may also be used.

[0044] The coating film is then baked to obtain the non-exposed portion 5. That is, the non-exposed portion 5 comprises the electrodeposition coating layer 51 after baking, the intermediate coating layer 52 arranged in contact with one side of the electrodeposition coating layer 51, and the base coating layer 53 arranged in contact with one side of the intermediate coating layer 52, but does not comprise a bright coating layer or a clear coating layer.

[0045] The brightness of the non-exposed portion 5 is appropriately set depending on the purpose and application.

[0046] The exposed portion 4 and the non-exposed portion 5 may be painted separately, or may be painted together. Preferably, the exposed portion 4 and the non-exposed portion 5 are painted together. More specifically, in a painting line for the vehicle body panel 2, the electrodeposition coating layer 41 and the electrodeposition coating layer 51, the intermediate coating layer 42 and the intermediate coating layer 52, and the base coating layer 43 and the base coating layer 53 are laminated together on the exposed portion 4 and the non-exposed portion 5, respectively. Next, the glossy coating layer 44 and the clear coating layer 45 are laminated only on the exposed portion 4. When the glossy coating layer 44 and the clear coating layer 45 are laminated, the non-exposed portion 5 may be masked as necessary. After that, the exposed portion 4 and the non-exposed portion 5 are baked together. This allows the exposed portion 4 and the non-exposed portion 5 to be painted together.

[0047] In the above vehicle 1, the exposed portion 4 of the upper part of the sliding door 3 comprises an electrodeposition coating layer 41, an intermediate coating layer 42 arranged in contact with one side of the electrodeposition coating layer 41, a base coating layer 43 arranged in contact with one side of the intermediate coating layer 42, a gloss coating layer 44 arranged in contact with one side of the base coating layer 43 and containing a glossy material, and a clear coating layer 45 arranged in contact with one side of the gloss coating layer 44, while the non-exposed portion 5 of the upper part of the sliding door 3 comprises an electrodeposition coating layer 51, an intermediate coating layer 52 arranged in contact with one side of the electrodeposition coating layer 51, and a base coating layer 53 arranged in contact with one side of the intermediate coating layer 52, and does not comprise a gloss coating layer or a clear coating layer.

[0048] Therefore, in the above vehicle 1, the brightness of the exposed portion 4 at the upper part of the door in the sliding door 3 and the brightness of the non-exposed portion 5 can be made approximately the same.

[0049] In other words, from the standpoint of appearance, it has been conventionally required that the brightness of the non-exposed portion 5 when exposed to direct light and the brightness of the exposed portion 4 when exposed to direct light be approximately the same near the swing door of the vehicle 1.

[0050] Therefore, when the vehicle 1 has a swing door, the exposed portion 4 is formed with the electrodeposition coating layer 41, the intermediate coating layer 42, the base coating layer 43, the glitter coating layer 44, and the clear coating layer 45. On the other hand, only the electrodeposition coating layer 51 and the base coating layer 53 are formed on the non-exposed portion 5. In other words, the intermediate coating layer, the glitter coating layer, and the clear coating layer are not formed on the non-exposed portion 5. This reduces the brightness of the non-exposed portion 5 when exposed to direct light, and makes the brightness of the non-exposed portion 5 and the brightness of the exposed portion 4 approximately the same. In particular, when the brightness of the intermediate coating layer 42 is higher than the brightness of the electrodeposition coating layer 41, the above configuration makes it possible to make the brightness of the non-exposed portion 5 and the brightness of the exposed portion 4 approximately the same.

[0051] However, unlike vehicles with swing doors, in vehicles 1 with sliding doors 3, the exposed portion 4 is easily exposed to direct light, while the non-exposed portion 5 of the upper part of the door (roof portion) is not easily exposed to direct light. Therefore, if the sliding door 3 is painted based on the brightness when exposed to direct light as described above, there is a problem in that the brightness of the exposed portion 4 of the upper part of the door and the non-exposed portion 5 of the upper part of the door (roof portion) cannot be made equal.

[0052] In contrast, the above vehicle 1 has a specific configuration for the paint layer of the non-exposed portion 5 and the paint layer of the exposed portion 4. Therefore, the brightness of the non-exposed portion 5 when not exposed to direct light and the brightness of the exposed portion 4 when exposed to direct light can be made approximately the same.

[0053] As a result, in the vehicle 1 described above, the brightness of the exposed portion 4 at the upper part of the door in the sliding door 3 and the brightness of the non-exposed portion 5 can be made approximately equal. [Explanation of symbols]

[0054] 1 vehicle 3. Sliding Door 4 Exposed part 5 Non-exposed part 41 Electrochemical coating layer 42 Intermediate coating layer 43 Base paint layer 44 Bright paint layer 45 Clear paint layer 51 Electrochemical coating layer 52 Intermediate coating layer 53 Base paint layer

Claims

[Claim 1] A vehicle having a body panel and a sliding door, the vehicle body panel disposed on an upper portion of the sliding door has an exposed portion that is exposed to the outside of the vehicle when the sliding door is closed, and a non-exposed portion that is not exposed to the outside of the vehicle when the sliding door is closed, The exposed portion is An electrodeposition coating layer; An intermediate coating layer arranged in contact with one surface of the electrodeposition coating layer; A base coating layer arranged in contact with one surface of the intermediate coating layer; A bright coating layer that is disposed in contact with one surface of the base coating layer and contains a bright material; A clear coating layer is provided and arranged in contact with one surface of the bright coating layer, The non-exposed portion is An electrodeposition coating layer; An intermediate coating layer arranged in contact with one surface of the electrodeposition coating layer; A base coating layer is provided which is arranged in contact with one surface of the intermediate coating layer, The bright coating layer and the clear coating layer are not provided, In the exposed portion and the non-exposed portion, A vehicle, wherein the brightness of an intermediate coating paint forming the intermediate coating layer is the same as the brightness of a base coating paint forming the base coating layer.

Images