JP2004216571A - Trim panel, its forming method and plate-shaped structure using the panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a panel for a vehicle wherein uneven forming is applied to a baked coated metal decorative panel, to which a color pattern is applied, relatively inexpensively, and to provide a trim panel friendly to environment, its forming method and a plate-shaped structure using the panel. <P>SOLUTION: This trim panel is obtained by forming a desired uneven shape to the surface of a panel material 3 to be processed, which is formed into the printed and baked coated metal decorative panel having surface hardness corresponding to a pencil hardness of H to 6H, by using a forming apparatus 10 which has a forming mechanism K comprising a rod-shaped cope pressing body 1 having a spherical leading end part 1a and operated in a three-dimensional direction and a fixed drag pressing body 2 and equipped with a holding part 4 for holding the peripheral edge part 3c of the panel material 3 to be processed to move up and down in connection with the forming mechanism K. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to equipment to be mounted on a railway vehicle, for example, an entrance / exit having a part to be kinked, a window frame and a waist wall corresponding to a lower waist wall, and a long-seat type to be installed in a commuter train. Or, a panel such as a sleeve partition attached to an entrance side of a bench-type stool, various box-shaped inspection lids, an interior panel such as a panel used for a building or the like, a molding method thereof, and a plate-like structure using the panel About.
[0002]
[Prior art]
Conventionally, for interior materials for railway vehicles, for example, a melamine decorative aluminum plate is often used, but since its material property has a curvature radius of only about 150 mm, it is used for a portion having a small curvature. I can't do that. In response to this, there is a case in which a hard resin plate having an uneven shape formed by heat molding is used, or an aluminum plate is subjected to sheet metal processing to form an uneven shape and then painted to finish (an invention based on an improvement of an existing technology. ).
[0003]
[Problems to be solved by the invention]
The surface finish of these conventional products is either a method of coloring the material before molding or a method of painting and finishing after molding, so that it is inevitable to use a single color finish and a color pattern cannot be formed.
[0004]
Further, as a conventional example of a plate-like structure having a sandwich adhesive structure, there is an example of a sleeve partition plate, but a melamine decorative aluminum plate has a simple flat shape.
[0005]
That is, the conventional product is inferior in design, and in the case of a melamine decorative aluminum plate or a hard resin plate, there remains a problem with respect to the environmental problem of recycling.
[0006]
In addition, a melamine decorative aluminum plate or a hard resin plate is expensive as a material. In particular, when a hard resin plate is to be formed, a forming jig is required, which is disadvantageous in terms of manufacturing cost.
[0007]
The present invention has been made by paying attention to the above points, and it is possible to provide an inexpensive panel provided with a concave / convex shape on a baked and painted metal decorative plate having a color pattern and the like, and it is environmentally friendly interior. An object of the present invention is to provide a panel, a molding method thereof, and a plate-like structure using the panel.
[0008]
[Means for Solving the Problems]
The present invention can solve the above-mentioned problems by providing the following configuration.
[0009]
(1) A stick-shaped metal plate whose surface has a spherical shape and operates in a three-dimensional direction with its tip being spherical, with a surface hardness equivalent to a pencil core hardness of H or more and 6H or less. It has a molding mechanism consisting of an upper mold pressing body and a fixed lower mold body, and has a clamping portion that vertically moves in conjunction with the molding mechanism while clamping a peripheral edge of the metal decorative plate to be processed. An interior panel obtained by molding a desired uneven shape using a molding device.
[0010]
(2) Using an interior panel formed by embossing the metal decorative board printed and baked and coated as described in (1) above, using this panel as a surface plate, and interposing a honeycomb core material or a core material using a resin foam material in the middle. A plate-like structure having a sandwich adhesive structure using a printed bake-painted metal decorative board, a melamine decorative board, or a metal plate without makeup as the back plate, the surface hardness of which is equal to or higher than the pencil core hardness of H or more than 6H and equal to or less than the pencil core hardness. body.
[0011]
(3) In the interior panel formed by forming irregularities on the printed baking-painted metal decorative plate described in (1) above, the interior panel is held on the axis of the upper mold pressing body and the lower mold formed body when the irregularities are formed on the plate material to be processed. An interior panel including a processing condition in which an angle formed between the plate material and the workpiece is 30 ° to 90 °.
[0012]
(4) The peripheral portion of a printed and baked metal decorative plate having a surface hardness equivalent to the pencil core hardness of H or more and 6H or less on one side is clamped by the clamping portion, and the tip portion has a spherical shape and is vertically suspended. The painted surface of the metal baking sheet printed and baked so as to cover the lower mold body of a molding mechanism consisting of a rod-shaped upper mold pressing body and a fixed lower mold body that moves in a three-dimensional direction in the folded state. / The inside of the upper mold pressing body is moved in a three-dimensional direction in accordance with the shape of the lower mold body, and the holding portion that holds the peripheral edge of the metal decorative plate is provided. A method of forming an interior panel, which moves downward along a vertical axis by a predetermined distance in accordance with the operation of the upper die pressing body, thereby enabling a desired uneven shape to be formed.
[0013]
(5) In the method for forming an interior panel according to the above (4), an upper die used for forming a concave and convex shape by arranging a painted surface of a printed baking metal decorative plate serving as a plate material to be processed on a lower side / inward side. An interior panel molding method including a processing condition in which an angle generated between an axis of a pressing body and the plate material to be processed held on a lower mold body is 30 ° to 90 °.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of an interior panel, a forming method thereof, and a plate-like structure using the panel according to the present invention will be described.
[0015]
FIG. 1A is a plan view of the lower mold body and the holding portion as viewed from above, and FIG. 1B is a cross-sectional view (AA cross section) showing a state in which a metal decorative plate that has been printed and baked is formed with irregularities. FIG. 2A is a perspective view showing an attached state of a stool side surface inside the vehicle, FIG. 2B is a longitudinal sectional view (BB section) of the stool side surface, and FIG. FIG. 4B is a longitudinal sectional view (C-C cross section) of the sleeve partition, and FIG. 4 is a perspective view showing a mounting state of the sleeve partition inside the vehicle.
[0016]
1 (a) and 1 (b), a lower molded body 2 is formed by combining plate-like bodies 5, 5... A receiving member 2b for receiving the molding material is mounted as shown in the figure, and a molding die is formed thereon using, for example, a resin or a low melting point aluminum alloy, a zinc alloy, or the like to be the molding material 2a, and is controlled upward. A forming mechanism K is provided with an upper die pressing body 1 that operates in a three-dimensional direction by a device (not shown), and a required shape is formed using 3D, that is, three-dimensional data, without depending on press working and skilled skills. Can be done.
[0017]
The peripheral edge 3c of the printed and baked metal decorative plate 3 having a surface hardness corresponding to a pencil core hardness of H or more and H or less than 6H is sandwiched, and moves up and down in conjunction with the forming mechanism K. A desired interior panel can be obtained by forming irregularities on the plate material 3 to be processed by using the forming apparatus 10 having the holding portion 4.
[0018]
3 (a) and 3 (b), an interior panel formed by embossing a decorative metal plate subjected to printing and baking is used, this panel is used as a surface plate, and a core using a honeycomb core material or a resin foam material in the middle. In the case where the metal veneer or the melamine veneer or the back plate which is printed and baked and has a surface hardness equivalent to the pencil core hardness of H or more and 6H or less as the back plate with the material 7 interposed therebetween is not visible to the passenger. A plate-like structure having a sandwich adhesive structure using a metal plate without makeup can be obtained.
[0019]
Further, as shown in FIG. 1 (b), in an interior panel formed by embossing a decorative metal plate subjected to printing and baking, the shaft core of the upper die pressing body 1 and the lower mold during the embossing of the plate material 3 to be processed. This is an interior panel including a processing condition in which an angle θ generated between the plate material 3 and the workpiece 3 held on a molded body 2 is 30 ° to 90 °.
[0020]
Note that the angle θ generated between the axis of the upper die pressing body 1 and the plate material 3 held on the lower die body 2 at the time of forming the unevenness of the plate material 3 is 30 ° to 90 °. , Preferably 40 ° to 65 °, more preferably 45 ° to 57 °.
[0021]
A molding method will be described with reference to the above configuration and drawings.
[0022]
As shown in FIG. 1 (b), printing to be a plate material 3 to be processed so as to cover a molding material 2a made of a resin, a low melting point aluminum alloy, a zinc alloy or the like forming the upper surface of the lower molded body 2. The front side 3a of the baked metal decorative board is turned downward (the back side 3b is turned upward), and the entire peripheral edge 3c of the work piece 3 is held and held by the holding section 4 from a control device (not shown). The upper mold pressing body 1 is operated in three-dimensional directions based on the 3D data of the required shape, and is clamped in accordance with the progress of molding while following the operation (1 ′ → 1) of the upper mold pressing body. The part moves from the position 4 'to the position 4 below, and FIG. 1B shows a state in which the desired forming process has been completed.
[0023]
(Example 1)
In the first embodiment, as shown in FIGS. 2A and 2B, for example, a so-called “kneeling” 6 of a portion corresponding to a waist wall located below a window of a vehicle having a box seat is formed. It is arranged so that the surface side 3a of the decorative metal plate obtained by printing and baking the color pattern of the plate material 3 to be processed can be viewed, and is applied to the surface side of the lower mold body 2 during the forming process. The back side 3b of the plate 3 to be processed is arranged so as not to be seen as the back side so that the processing traces of the mold pressing body 1 are not shown, and the front side is concave as shown in FIGS. 2 (a) and 2 (b). By doing so, it is possible to improve the livability of the passenger's feet and facilitate the rotation operation for changing the direction of the box seat.
[0024]
The material used is an aluminum decorative board having a surface hardness of pencil core hardness H, a hardness that does not cause scratches or traces, and a print thickness of 1.2 mm printed and baked.
[0025]
(Example 2)
In the second embodiment, as shown in FIGS. 3A, 3B and 4, for example, a decorative panel for interior (a plate-like structure) having a sandwich adhesive structure that becomes a so-called “sleeve partition” 11 such as a commuter train. It is.
[0026]
FIG. 3 (a) is a perspective view as viewed from the inside with a stool, and a "sleeve partition" 11 provided with a concave portion including an inclined portion 9 and a concave portion 9a in consideration of a portion to be hit by an elbow when a person sits down. This is an example. In the figure, 7 is a honeycomb core material such as a paper honeycomb or an aluminum honeycomb, or a core material made of a hard resin foam material or a low foam soft resin foam material, and 8 is a frame material such as a C-shaped steel. Reference numeral 12 denotes a border using stainless steel (SUS) or the like.
[0027]
The surface plate 3 on the stool side is a printed and baked metal decorative plate whose surface hardness is formed into a concavo-convex shape and corresponds to a pencil core hardness of H or more and 6H or less.
[0028]
The back side plate 3 ′ on the entrance side is a printed decorative metal plate having a surface hardness equivalent to a pencil core hardness of H or more and 6 H or less when formed into an uneven shape, and as a melamine decorative plate for a flat design. Is also good.
[0029]
It is to be added that the operation of the upper die pressing body 1 when the spherical tip 1a of the upper die pressing body 1 moves by rubbing the molding surface of the plate material 3 to be processed during the molding process in this embodiment is smooth. In order to leave no trace of the rubbing trace, a lubricant may be supplied to a required portion or the like.
[0030]
Compared with the conventional melamine decorative board, it has good bending workability, so that it is possible to design a shape excellent in design. Although the depth of the unevenness in this embodiment is about 30 mm, an uneven shape of about 500 mm can be formed as necessary.
[0031]
Further, the material price of the printed baking painted metal decorative board used in this embodiment is lower.
[0032]
In the case of a melamine decorative aluminum plate, it is difficult to separate and collect it because a thick thermosetting resin plate such as a melamine resin is adhered to the surface, but the printed and baked aluminum decorative plate used in this example has a thin coating. Therefore, aluminum can be melted and recovered in a blast furnace, the processing cost is relatively low, the recyclability is excellent, and the environment is friendly.
[0033]
In addition, the sample of the sleeve partition product shows one end of the test result after the forming process. In the visual inspection after the forming, the working angle θ is 60 ° for the plate material to be processed whose surface hardness is equivalent to the pencil core hardness of 6H. In the case of / 65 °, signs of generation of microcracks were observed, but there was no chipping of the coating film. Further, the adhesion test was carried out using an adhesive tape. As a result, no peeling of the coating film was found.
[0034]
In the case of a plate material having a hardness equivalent to 3H, even when the processing angle θ is 60 °, and even at 52 °, no crack is recognized with the naked eye. Although observed, there was no chipping of the coating film and no peeling of the coating film by the adhesion test.
[0035]
In the case of a plate material having a surface hardness equivalent to the pencil core hardness H, even when the processing angle θ is 52 ° and further 45 °, no cracks are observed with a magnifying glass of 10 times, and there is no problem at all. Was.
[0036]
In the case of "paint film breakage evaluation" of the pencil scratching test method according to JIS K5600, in the case of a plate material having a surface hardness equivalent to a pencil core hardness of 6H, if the processing angle θ is 60 ° and there is no repair painting, the convex R portion or the inclination In some cases, the pencil scratching value was reduced to 4H, but it was confirmed that the surface hardness recovered to 6H or more when repair coating was performed with a clear paint of urethane resin or acrylic resin.
[0037]
In the case of a 3H-equivalent product, when a processing angle θ was 52 °, a convex R portion or an inclined portion in which a micro-crack was found to be detectable with a magnifying glass of 10 times was tested in the same manner as above, and a pencil scratch was found. The value was 3H or more and did not decrease.
[0038]
In the above embodiments, the vehicle panel has been described in mind, but it is needless to say that the present invention can be applied to a panel used for a building or the like.
[0039]
【The invention's effect】
As described above, according to the present invention, it is possible to design a concavo-convex shape having excellent designability, express an excellent color pattern on the surface, and perform molding at low cost. In addition, since the aluminum decorative board printed and baked has a thin coating film, the aluminum content can be melted and recovered in a blast furnace, so that it has excellent recyclability and is environmentally friendly.
[Brief description of the drawings]
FIG. 1 (a) is a plan view of a lower mold body and a holding portion viewed from above, and FIG. 1 (b) is a cross-sectional view showing a state in which a decorative metal plate subjected to printing and baking is formed in an uneven manner (cross section AA).
FIG. 2A is a perspective view showing an attached state of a seat side portion inside a vehicle, and FIG. 2B is a longitudinal sectional view of the seat side portion (BB section).
3A is a perspective view showing the appearance of a sleeve partition, and FIG. 3B is a longitudinal sectional view of the sleeve partition.
FIG. 4 is a perspective view showing a state of mounting a sleeve partition inside the vehicle.
1, 1 'Upper die pressing body 1a Spherical tip 2 Lower die forming body 2a Molding material 2b Receiving member 3 Metallic veneer plate (printed plate material) printed and baked
Reference numeral 3a Front side 3b Back side 4 Nipping part 5 Plate-like body with cutout 6 Kisekin 7 Core material 8 Frame material 9 (Dent of sleeve partition) Slope 9a Depressed part of (Sleeve partition) 10 Forming device 11 Sleeve partition 12 Edge K molding mechanism

Claims (5)

A rod-shaped upper die that operates in a three-dimensional direction with its tip being spherical and vertically suspended on a printed and baked metal decorative board with a surface hardness equivalent to the pencil core hardness of H or more and 6H or less. A molding apparatus having a molding mechanism composed of a pressing body and a fixed lower molded body, and having a clamping portion that clamps a peripheral edge of the metal decorative plate to be processed and moves up and down in conjunction with the molding mechanism. An interior panel obtained by molding a desired uneven shape by using the above. An interior panel obtained by forming irregularities on the printed baking-painted metal decorative board according to claim 1, using this panel as a front panel, interposing a honeycomb core material or a core material using a resin-based foam material in the middle, and using the panel as a back panel. A plate-like structure having a sandwich-bonded structure using a printed and baked metal decorative board or a melamine decorative board or a metal plate without makeup with a surface hardness equivalent to a pencil core hardness of H or more and 6H or less. Structure. 2. The interior panel formed by forming irregularities on a printed baking-painted metal decorative board according to claim 1, wherein the workpiece is held on an axis of an upper mold pressing body and a lower mold body during irregularities forming of a plate material to be processed. An interior panel characterized by including a processing condition in which an angle generated between the plate material and the plate material is 30 ° to 90 °. In the state where the peripheral portion of the printed and baked metal decorative plate having a surface hardness equivalent to the pencil core hardness of H or more and 6H or less on one side is sandwiched by the sandwiching portion, and the tip portion has a spherical shape and is vertically suspended. The metal veneer printed and baked is coated with a lower / inner surface so as to cover a lower mold body formed by a three-dimensionally-operated rod-shaped upper mold pressing body and a fixed lower mold body. And the spherical tip of the upper die pressing body is moved in a three-dimensional direction according to the shape of the lower die molded body, and the holding part holding the peripheral edge of the metal decorative board is on the vertical axis. A method for forming an interior panel, wherein the method moves along a predetermined distance downward along the operation of the upper die pressing body so that a desired uneven shape can be formed. 5. The method for forming an interior panel according to claim 4, wherein the painted surface of the printed and baked metal decorative plate serving as a plate material to be processed is disposed on the lower side / inside, and the shaft of the upper die pressing body when performing the uneven forming process. A method for forming an interior panel, comprising: a processing condition in which an angle generated between a core and a plate material to be processed held on a lower mold body is 30 ° to 90 °.

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