JP2004316300A - Method of manufacturing door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To firmly fix a decorative molding manufactured from a metal plate, to a decorative recessed part of a surface panel not to come off. <P>SOLUTION: In the method of manufacturing a door, the decorative molding 2 is fitted and fixed into the decorative recessed part 3 of the surface panel 1. The decorative molding 2 is formed by cutting the metal plate by an NC laser machining device and forming the outer peripheral surface as an oxidized rugged surface 5. The surface panel 1 is provided with the decorative recessed part 3 by pressing a surface treated metal plate 8 with a cushioning layer 4 laminated on the surface of a metal plate 7, by an NC turret punch press 10. The surface panel 1 is provided with the decorative recessed part 3 by carrying out repeated pressing by a pressing part 11a of a die 11 while moving one or both of the surface treated metal plate 8 and die 11 at prescribed pitches. The decorative molding 2 is fitted and fixed into the decorative recessed part 3 of the surface panel 1 to bring the oxidized rugged surface 5 of the decorative molding 2 into close contact with the cushioning layer 4 on the inner peripheral surface of the decorative recessed part 3. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a door in which a concave portion is provided in a surface panel, and a decorative molding of a metal plate is placed in the concave portion to decorate the door with a beautiful design.
[0002]
[Prior art]
A door that fixes a decorative molding to a front panel is described in, for example, Japanese Patent Application Laid-Open No. H10-163,036. In the door described in this publication, as shown in the perspective view of FIG. 1, a decorative recess 23 is provided on a front panel 21, and a decorative molding 22 is fixed here. The decorative molding 22 is formed into an H-shaped cross section with an extruded die. The decorative molding 22 is fixed to the decorative concave portion 23 by bonding. Further, in this door, the end of the decorative molding 22 is connected to the door with a molding end locking tool 24 in order to prevent the decorative molding 22 from coming off. The molding end locking tool 24 includes an upper holding portion 24A inserted into the space of the H-shaped decoration molding 22 and a lower holding portion 24B inserted into the door main body, and connects the upper holding portion 24A to the decoration molding 22. It is connected to the door so that it does not come off.
[0003]
[Patent Document 1]
Japanese Utility Model Publication No. 3-66388 [0004]
[Problems to be solved by the invention]
In the door of FIG. 1, the molding end locking tool 24 is connected to the end of the decorative molding 22 so as not to come off. In this structure, the shape of the decoration mall is limited because the decoration mall needs to be extended to the end of the door. For example, a decorative mall that does not extend to the end of the door cannot be securely fastened to the door with this structure. Further, in this structure, the decorative molding cannot be made of a metal plate because the H-shaped decorative molding is connected by the molding end stopper. This is because the metal plate is thin and cannot be processed into an H shape. Since the decorative mall is used to decorate the surface of the door, even if it is thickened, it will not be a beautiful design. It is important to make the decorative mall as thin as possible in order to reduce manufacturing costs. No matter how thin the decoration mall is, the effect of beautifully decorating the door surface does not decrease at all. For this reason, it is important to firmly fix the thin decorative mall to the front panel.
[0005]
However, it is very difficult for a thin decorative molding made by cutting a metal plate to be firmly fixed to the decorative recess of the front panel so as not to come off. Since the decorative molding made of a thin metal plate is easily bent and easily deformed, a portion adhered to the decorative concave portion may be peeled off and partially project from the decorative concave portion. In particular, when the temperature of the door becomes high, the decorative molding easily projects from the decorative concave portion. This is because the adhesive material is softened or deteriorated, and the decorative molding may be deformed due to thermal expansion or the like. Further, a decorative molding made of a thin metal plate can be manufactured at low cost, but is easily deformed in a process before being fitted into the decorative recess of the front panel. The decorative molding deformed before the fitting can be fixed to the decorative concave portion with an adhesive, but when the temperature becomes high, it may be restored to the original deformed shape and protrude from the decorative concave portion.
[0006]
In particular, doors that use a double-sided adhesive tape to adhere the decorative mall to the decorative recess in order to efficiently fix the decorative mall to the decorative recess, when the temperature rises, the double-sided adhesive tape softens and the decorative mall Of the adhesive decreases. For this reason, there is a disadvantage that when the temperature increases, the decorative molding projects outside from the decorative concave portion.
[0007]
The present invention has been developed to solve such disadvantages of the conventional door. An important object of the present invention is to provide a method of manufacturing a door capable of firmly fixing a decorative molding made of a metal plate so as not to come off in a decorative recess of a front panel.
[0008]
[Means for Solving the Problems]
In the method of manufacturing a door according to the present invention, the decorative recess 3 of the front panel 1 in which the decorative recess 3 is provided by pressing the metal plate 7 is formed by cutting the metal plate with a color different from that of the front panel 1. The molding 2 is fitted, and the decorative molding 2 is adhered and fixed to the bottom surface of the decorative recess 3. In this manufacturing method, a decorative plate 2 is manufactured by cutting a metal plate with an NC laser processing apparatus and setting an outer peripheral surface, which is a laser cut surface, as an oxidized uneven surface 5 which is a fine uneven surface of an oxide film. Further, with the NC turret punch press 10, the decorative recess 3 is provided in the surface-treated metal plate 8 in which the cushion layer 4 is laminated on the surface of the metal plate 7, and the front panel 1 is manufactured. The front panel 1 is configured to move one or both of the surface-treated metal plate 8 and the mold 11, and to move the press part 11 a of the mold 11 at a predetermined pitch along the periphery of the decorative concave part 3 while moving the mold. Eleven pressed portions 11a repeatedly press the surface-treated metal plate 8 to provide the decorative concave portion 3 in which the cushion layer 4 is provided on the inner peripheral surface. Furthermore, the decorative molding 2 is fitted into the decorative concave portion 3 of the front panel 1 so that the oxidized uneven surface 5 of the peripheral edge of the decorative molding 2 is in close contact with the cushion layer 4 on the inner peripheral surface of the decorative concave portion 3 provided on the front panel 1. At the same time, the decorative molding 2 is bonded and fixed to the decorative concave portion 3, and the decorative molding 2 is formed by the cushion layer 4 on the inner peripheral surface of the decorative concave portion 3 and the oxidized uneven surface 5 provided on the outer peripheral surface of the decorative concave 2. It is fixed to the decorative recess 3 of the front panel 1 so as not to come off.
[0009]
According to the door manufacturing method of the second aspect of the present invention, the surface of the decorative molding 2 to be fitted into the decorative concave portion 3 is flush with the surface of the front panel 1, or the surface of the decorative molding 2 is higher than the surface of the front panel 1. Are also located inside the decorative recess 3. Further, in the door manufacturing method according to claim 3 of the present invention, the decorative molding 2 is bonded to the bottom of the decorative recess 3 of the front panel 1 via the double-sided adhesive tape 6.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the embodiments described below exemplify a door manufacturing method for embodying the technical idea of the present invention, and the present invention does not specify the door manufacturing method as follows.
[0011]
Further, in this specification, in order to make it easy to understand the claims, the numbers corresponding to the members shown in the embodiments are referred to as "claims" and "means for solving the problem". Are added to the members indicated by "." However, the members described in the claims are not limited to the members of the embodiments.
[0012]
In the doors shown in the front views of FIGS. 2 to 11, the decorative recess 3 is provided on the front panel 1, and the decorative molding 2 is fixed to the decorative recess 3. These figures show the decorative mall 2 by cross hatching. In the illustrated door, the decorative molding 2 is fixed to all the decorative concave portions 3 provided on the front panel 1, or the decorative molding 2 is fixed to some of the decorative concave portions 3. The front panel 1 is provided with a decorative recess 3 by pressing a metal plate with an NC turret punch press in order to fit and fix the decorative molding 2. As shown in a partially enlarged cross-sectional view of FIG. 12, the front panel 1 has a decorative concave portion 3 provided on a surface-treated metal plate 8 which is a metal plate 7 made of iron or the like on which a cushion layer 4 is laminated. is there. As the metal plate 7 of the front panel 1, an iron plate having a thickness of 0.6 mm is suitable. However, for the front panel 1, a metal plate 7 having a thickness of 0.5 to 0.8 mm can be used. The periphery of the front panel 1 is fixed to a door frame (not shown). The cushion layer 4 is a plastic film or a plastic coating film. The plastic film is a soft vinyl chloride film. However, a polyethylene film, a polypropylene film or the like can be used as the plastic film. The plastic coating film is a resin coating film such as a urethane coating film and an acrylic coating film. The thickness of these cushion layers 4 is 0.01 to 0.3 mm. The cushion layer 4 is adhered to the entire surface of the front panel 1 to decorate the surface of the door neatly and to fix the door so that it does not fall out of the decorative molding 2.
[0013]
The front panel 1 is provided with a decorative recess 3 by pressing a portion for fixing the decorative molding 2. In the doors shown in FIGS. 2 to 11, the outer periphery of the decorative concave portion 3 has a straight or curved shape. The inner shape of the decorative recess 3 is substantially equal to the outer shape of the decorative molding 2. The decoration recess 3 having an inner shape substantially equal to the outer shape of the decoration molding 2 can be fitted into the decoration molding 2 such that there is no gap. However, in the door of the present invention, it is not always necessary to fit the entire periphery of the decoration mall into the inner periphery of the decoration recess without any gap. This is because even if there is a gap at a part of the boundary between the decoration mall and the decoration recess, the decoration mall can be fitted into the decoration recess and firmly fixed.
[0014]
The depth of the decorative concave portion 3 is set to a depth at which the decorative molding 2 is inserted into the decorative concave portion 3 so that the decorative molding 2 does not protrude from the surface of the front panel 1. That is, the surface of the decorative molding 2 fitted into the decorative concave portion 3 is flush with the surface of the front panel 1, or the surface of the decorative molding 2 is positioned more inside the decorative concave portion 3 than the surface of the front panel 1. . For example, when a metal plate having a thickness of 1 mm is used for the decorative molding 2, the depth of the decorative concave portion 3 is set to about 1.5 mm. The reason why the decorative recess 3 is made deeper than the thickness of the decorative molding 2 is to provide a space for an adhesive for bonding the decorative molding 2 or a double-sided adhesive tape 6. Therefore, the decorative concave portion 3 has a depth obtained by adding the thickness of the decorative molding 2 to the thickness of the adhesive for bonding the decorative molding 2 or the double-sided adhesive tape 6. Preferably, the depth of the decorative recess 3 can be 1 to 3 mm.
[0015]
A surface-treated metal plate 8, which is a metal plate 7 to which the cushion layer 4 is bonded, is pressed with a metal mold to produce the surface panel 1 having the decorative concave portion 3. The decorative recess 3 formed by pressing is provided with a cushion layer 4 on the entire inner surface. The decorative concave portion 3 is not provided by pressing at once with a mold having a convex portion having the same shape as the decorative concave portion 3. The decorative recess 3 is provided by repeatedly pressing while moving a mold sufficiently smaller than the shape of the decorative recess 3 along the periphery of the decorative recess 3. The decorative recess 3 is provided by repeatedly pressing a mold of an NC turret punch press. As shown in FIG. 13, the NC turret punch press presses the mold repeatedly while moving the press part 11 a of the mold at a predetermined pitch along the periphery of the decorative recess 3, thereby providing the decorative recess 3. In order to move the press part 11a of the mold to the periphery of the decorative recess 3, one or both of the surface-treated metal plate 8 and the mold 11 are moved.
[0016]
The metal mold 11 shown in the cross-sectional view of FIG. The mold 11 includes an upper mold 11A having a press portion 11a at a position where the decorative concave portion 3 is provided, and a lower mold 11B having a concave portion 11b at a position where the decorative concave portion 3 is provided. In the mold 11, a pressing portion 11a is protruded in a state where the surface-treated metal plate 8 is sandwiched between the upper mold 11A and the lower mold 11B, and a gap is formed to bend the surface-treated metal plate 8 therebetween. The mold 11 extrudes the press part 11a of the upper mold 11A (protrudes downward in the drawing), and presses the decorative recess 3 in the surface-treated metal plate 8. After the pressing portion 11a of the upper mold 11A presses the surface-treated metal plate 8, the surface-treated metal plate 8 is moved, and then the process of pressing the surface-treated metal plate 8 again by the pressing portion 11a is repeated. The decorative recess 3 is provided on the plate 8. When moving the surface-treated metal plate 8, the upper mold 11A is lifted and separated from the surface-treated metal plate 8. When the press part 11a presses the surface-treated metal plate 8, the upper die 11A is lowered, and the surface-treated metal plate 8 is sandwiched between the upper die 11A and the lower die 11B.
[0017]
As shown in the schematic sectional view of FIG. 5, the NC turret punch press 10 has an upper turret 12 for setting an upper mold 11A, a lower turret 13 for setting a lower mold 11B, and a horizontal posture of the surface-treated metal plate 8. And a transfer means 15 for transferring the surface-treated metal plate 8 at a predetermined pitch in the X-axis direction and the Y-axis direction under the control of a control mechanism incorporating a computer. The NC turret punch press 10 extrudes the press portion 11a of the upper die 11A and presses the surface-treated metal plate 8 in a state where the surface-treated metal plate 8 is sandwiched between the upper turret 12 and the lower turret 13. The surface-treated metal plate 8 supplied to the upper surface of the table 14 is transported by a predetermined pitch in a horizontal posture, with its edge held and clamped by the clamp 16 of the transporting means 15. When the transfer means 15 transfers the surface-treated metal plate 8, the mold 11 releases the sandwiched state of the surface-treated metal plate 8. That is, the transfer means 15 transfers the surface-treated metal plate 8 with the upper mold 11A raised. Each time the transfer means 15 transfers the surface-treated metal plate 8 at a predetermined pitch, the mold 11 presses the surface-treated metal plate 8 to provide the decorative recess 3 in the surface-treated metal plate 8. Therefore, the transfer means 15 transfers the surface-treated metal plate 8 at a predetermined pitch so that the press portion 11a moves along the peripheral edge of the decorative concave portion 3. The pitch at which the transfer means 15 transfers the surface-treated metal plate 8 is set to an optimum value in consideration of the number of presses and the shape of the press portion 11 a of the mold 11. When the press portion 11a of the mold 11 presses the periphery of the decorative concave portion 3 which approximates a straight line, the transfer pitch is set to about 6 mm. When pressing the part where the periphery of the decorative recess 3 bends with a small radius of curvature, the transfer pitch is reduced to about 1 mm. Therefore, the transfer pitch at which the transfer means 15 transfers the surface-treated metal plate 8 can be 0.5 to 20 mm, preferably 1 to 10 mm, and optimally 1 to 6 mm.
[0018]
The mold 11 of the NC turret punch press 10 is shown in the perspective views of FIGS. FIGS. 16, 18 and 20 show the lower mold 11B, and FIGS. 17, 19 and 21 show the upper mold 11A. 16 and 17 show a mold 11 for pressing a straight portion of the decorative recess 3, and FIGS. 18 and 19 show a mold 11 for pressing a corner portion of the decorative recess 3, and FIGS. 20 and 21. Denotes a mold 11 for pressing a curved portion of the decorative recess 3. The lower mold 11B of FIG. 16, FIG. 18, and FIG. 20 has a recess 11b as a step shape on the upper surface. The upper mold 11A of FIGS. 17, 19, and 21 is provided so that a press part 11a protruding toward the concave part 11b can enter and exit. The press portion 11a projects into the concave portion 11b of the lower mold 11B, and presses the surface-treated metal plate 8. However, FIGS. 17 and 19 show a state in which the press portion 11a is protruded in order to easily understand the tip shape of the press portion 11a. Normally, the press portion 11a of the upper mold 11A is located at the retracted position, and protrudes as shown in the drawing while holding the surface-treated metal plate 8 between the upper mold 11A and the lower mold 11B, and The plate 8 is pressed.
[0019]
The surface-treated metal plate 8 pressed by the above-mentioned mold 11 is pressed one after another while being transported at a predetermined pitch in a direction of forming the decorative concave portion 3 as shown by an arrow in FIG. The decorative recess 3 is pressed. The NC turret punch press 10 transfers the surface-treated metal plate 8 while pressing it, for example, at a frequency of 2 to 4 times per second. Therefore, when the decorative concave portion 3 having a total length of 1500 mm is pressed, if the transfer pitch of the surface-treated metal plate 8 is 5 mm and the punch frequency of the NC turret punch press machine 10 is three times per second, a total of 300 hits are made. It can be pressed in about 2 minutes. However, the transfer pitch of the surface-treated metal plate 8, the punch frequency and the number of hits of the turret punch press 10 can be variously changed according to the overall length and shape of the decorative concave portion 3. As described above, the NC turret punch press machine, which performs a large number of press workings at a small pitch, is capable of forming the decorative concave portion 3 curved into various shapes into a small metal mold without using a special mold specially designed. There is a feature that press working can be performed easily and at low cost using a mold in a short time.
[0020]
Further, the door shown in FIGS. 5, 8, 10 and 11 has a stepped recess 9 outside the decorative recess 3 to which the decorative mall 2 is fixed. The stepped recess 9 is a stepped portion formed one step lower than the surface of the front panel 1. In the doors shown in these figures, a decorative concave portion 3 which is a step lower than the bottom surface by press working is provided on the bottom surface of the step concave portion 9. The door shown in FIGS. 5 and 11 is provided with a rectangular stepped recess 9 larger than the decorative recess 3 outside the rectangular decorative recess 3. However, the step recess and the decorative recess need not necessarily have the same shape. The door shown in FIG. 10 has an elliptical stepped concave portion 9 larger than the decorative concave portion 3 outside the rectangular decorative concave portion 3. Further, although not shown, the stepped recess can be formed into various shapes such as a circular shape, an elliptical shape, and a polygonal shape. Further, on the bottom surface inside the stepped recessed portion, various shapes formed smaller than the stepped recessed portion are provided. A decorative recess having a shape can be provided. Further, as shown in FIG. 8, a plurality of decorative concave portions 3 can be provided on the bottom surface of the step concave portion 9.
[0021]
The stepped recess 9 can be provided by pressing in the same manner as the decorative recess 3 described above. That is, although not shown, the stepped recess 9 is provided by repeatedly pressing a mold of an NC turret punch press. The NC turret punch press machine presses repeatedly while moving the press portion of the mold at a predetermined pitch along the periphery of the stepped recess to form a stepped recess. Either or both of the surface-treated metal plate and the mold can be moved to move the press portion of the mold to the periphery of the stepped recess. In the pressing of the stepped recess 9, the surface-treated metal plate 8 is pressed to provide the decorative recess 3 on the surface, and then the outer portion of the decorative recess 3 is further pressed to provide the stepped recess 9. After the processed metal plate 8 is pressed to form the stepped recess 9 on the surface, the bottom surface of the stepped recess 9 may be further pressed to form the decorative recess 3. As described above, the door provided with the stepped recess 9 outside the decorative recess 3 can make the surface of the door have an excellent appearance with a three-dimensional appearance, and is fixed to the pattern of the peripheral portion of the stepped recess 9 and the decorative recess 3. There is a feature that a complicated and beautiful design can be realized by combination with the decorative mall 2.
[0022]
The decorative molding 2 is manufactured by cutting a metal plate of a color different from that of the front panel 1. The decorative molding 2 uses a stainless steel plate. However, the decorative mall 2 can also use an aluminum plate or a shinchu plate. These metal plates have a feature that they can be cleaned for a long period of time because they do not easily rust. The decorative molding 2 is manufactured by cutting a metal plate into a width and a shape that can be fitted into the decorative concave portion 3. In other words, the inner width of the decorative recess 3 and the width of the decorative mall 2 allow the decorative mall 2 to fit into the decorative recess 3 without any gap. In the decoration mall 2, a metal plate slightly thinner than the depth of the decoration recess 3, in other words, the depth of the decoration recess 3 is made slightly deeper than the thickness of the decoration mall 2. This is because the decorative molding 2 fitted into the decorative concave portion 3 is positioned on the same plane as the front panel 1 or inside the decorative concave portion 3 than the front panel 1. If the decorative molding 2 projects from the decorative concave portion 3, it cannot be used safely.
[0023]
As shown in the partially enlarged cross-sectional view of FIG. 12, the decorative molding 2 has an oxide film on both side surfaces fitted into the decorative concave portions 3 to form fine uneven surfaces. The reason why the decorative molding 2 has the oxidized uneven surface 5 on both surfaces thereof is to fit into the decorative concave portion 3 so as not to come off, and to prevent the side edge from being deteriorated by the oxide film. By cutting a metal plate with a pulse laser, both sides of the decorative molding 2 can be oxidized uneven surfaces 5. Both sides cut by the pulse laser are heated and melted by the laser and oxidized, and fine irregularities melted by the pulse laser are formed. For this reason, the metal plate cut by the pulse laser is fitted into the decorative recess 3 by using the metal plate as it is without processing both surfaces into a mirror surface.
[0024]
To cut a metal plate with a pulse laser, an NC laser processing apparatus is used. The NC laser processing apparatus inputs a position for cutting a metal plate by software. The decorative molding 2 cut by the NC laser processing device is fitted into the decorative concave portion 3 pressed by the NC turret punch press. As described above, since both the NC laser processing apparatus and the NC turret punch press can input the processing dimensions by numerical control, they have a feature that they can be manufactured to almost the same dimensions. Therefore, the decorative concave portion 3 and the decorative molding 2 manufactured by this method have a feature that the shapes are accurately matched to each other and can be securely inserted. In addition, there is no need to separately input the position of the decorative concave portion 3 and the shape of the decorative molding 2, and there is a feature that the decorative concave portion 3 can be efficiently manufactured. The NC turret punch press and the NC laser processing apparatus work so that the width of the decorative recess 3 and the width of the decorative molding 2 are the same. The decorative molding 2 is fitted into the decorative concave portion 3 and makes the oxidized uneven surface 5 on both surfaces adhere to the cushion layer 4 of the front panel 1. For this reason, the cushion layer 4 and the oxidized uneven surface 5 are in close contact with each other, and the decorative molding 2 is reliably prevented from falling out of the decorative concave portion 3.
[0025]
The decorative molding 2 can also be manufactured by cutting a metal plate with an NC electrical discharge machining apparatus, without using a pulse laser. A metal plate cut by electric discharge machining does not have an uneven surface on the cut surface as cut by a pulse laser. For this reason, the metal plate cut by the electric discharge machining is machined into a fine uneven surface by cutting the cut side surfaces with a grindstone. At this time, the metal plate is heated by frictional heat rubbing with a grindstone to form oxide films on both side surfaces.
[0026]
The cut decorative molding 2 is fitted into and fixed to the decorative concave portion 3 of the front panel 1 as shown in the sectional view of FIG. The decorative molding 2 is adhered and fixed to the decorative concave portion 3 via the double-sided adhesive tape 6. The decorative molding can also be fixed by bonding it to the decorative recess with an adhesive.
[0027]
【The invention's effect】
The method for manufacturing a door of the present invention has a feature that a decorative molding made of a metal plate can be firmly fixed so as not to come off in a decorative concave portion of a front panel. That is, the method for manufacturing a door of the present invention is a surface-treated metal plate, which is a metal plate in which a metal plate is cut to produce a decorative molding having an oxidized uneven surface on an outer peripheral surface and a cushion layer is laminated on the surface. By press working, a surface panel with a decorative recess for fitting the decorative mall is manufactured, and the decorative recess having the cushion layer on the inner peripheral surface is fitted with a decorative mall having an outer peripheral surface oxidized uneven surface, This is because the oxidized uneven surface is fixed in close contact with the cushion layer.
[0028]
In particular, in the door manufacturing method of the present invention, a decorative plate is manufactured by cutting a metal plate with an NC laser processing device, and the decorative concave portion into which the decorative mall is to be fitted is pressed using an NC turret punch press machine. Therefore, the processing dimensions can be input by numerical control, and it is possible to produce almost the same dimensions. For this reason, the shape of both the decorative molding and the decorative concave can be accurately matched to each other, and the fitting can be surely performed. In addition, it is not necessary to input the position of the decorative concave and the shape of the decorative molding separately, and the production can be performed efficiently. Therefore, the feature that the decoration mall is fitted into the decoration concave portion to efficiently manufacture an extremely high-quality and beautiful door can be realized.
[0029]
Furthermore, in the manufacturing method of the present invention, the decorative recess is provided by repeatedly pressing the surface-treated metal plate and / or the mold at a predetermined pitch while moving the surface-treated metal plate and / or the mold at a predetermined pitch using an NC turret punch press. There is a feature that it is possible to press the decorative concaves curved into various shapes easily, at low cost and in a short time using a small mold without using a special mold specially designed. .
[Brief description of the drawings]
FIG. 1 is an enlarged perspective view of a main part of a conventional door. FIG. 2 is a front view showing an example of a door manufactured by the manufacturing method of the present invention. FIG. 3 is another door manufactured by the manufacturing method of the present invention. FIG. 4 is a front view showing another example of the door manufactured by the manufacturing method of the present invention. FIG. 5 is a front view showing another example of the door manufactured by the manufacturing method of the present invention. FIG. 6 is a front view showing another example of the door manufactured by the manufacturing method of the present invention. FIG. 7 is a front view showing another example of the door manufactured by the manufacturing method of the present invention. FIG. 9 is a front view showing another example of the door manufactured by the manufacturing method. FIG. 9 is a front view showing another example of the door manufactured by the manufacturing method of the present invention. FIG. 10 is manufactured by the manufacturing method of the present invention. FIG. 11 is a front view showing another example of the door. FIG. 11 is a front view showing another example of the door manufactured by the manufacturing method of the present invention. FIG. 13 is a partially enlarged cross-sectional perspective view of a door surface panel manufactured by the Ming manufacturing method. FIG. 13 is a schematic plan view showing a step of pressing a surface-treated metal plate with a die. FIG. FIG. 15 is a schematic cross-sectional view showing a step of performing press working with a mold. FIG. 15 is a schematic cross-sectional view of a turret punch press machine. FIG. 16 is a perspective view showing an example of a lower mold of a mold that presses a linear portion of a decorative recess. FIG. 18 is a perspective view showing an example of an upper mold of a mold for press-working a linear portion of a decorative recess. FIG. 18 is a perspective view showing an example of a lower mold of a mold for press-working a corner portion of a decorative recess. FIG. 20 is a perspective view showing an example of an upper mold of a mold for pressing a corner portion of a concave portion. FIG. 20 is a perspective view showing an example of a lower mold of a mold for pressing a curved portion of a decorative concave portion. One of the upper dies for pressing a curved part Cross-sectional view showing a step of pressing a top panel in a perspective view and FIG. 22 mold showing the EXPLANATION OF REFERENCE NUMERALS
DESCRIPTION OF SYMBOLS 1 ... Surface panel 2 ... Decorative molding 3 ... Decorative concave part 4 ... Cushion layer 5 ... Oxidized uneven surface 6 ... Double-sided adhesive tape 7 ... Metal plate 8 ... Surface treated metal plate 9 ... Stepped concave part 10 ... Turret punch press machine 11 ... Mold 11A ... upper mold 11B ... lower mold 11a ... press part 11b ... concave part 12 ... upper turret 13 ... lower turret 14 ... table 15 ... transfer means 16 ... clamp 21 ... front panel 22 ... decorative molding 23 ... decoration concave part 24 ... molding end member Stopper 24A: Upper holding part 24B: Lower holding part

Claims (3)

The metal plate (7) is formed by pressing the metal plate (7) into a decorative recess (3) of the surface panel (1) provided with the decorative recess (3) and having a color different from that of the surface panel (1). A method of manufacturing a door, wherein a decorative molding (2) is fitted into the decorative molding (2), and the decorative molding (2) is adhered and fixed to a bottom surface of the decorative recess (3).
A decorative plate (2) is manufactured by cutting a metal plate with an NC laser processing device and setting an outer peripheral surface, which is a laser cut surface, as an oxide uneven surface (5), which is a fine uneven surface of an oxide film.
Using an NC turret punch press (10), one or both of a surface-treated metal plate (8) formed by laminating a cushion layer (4) on the surface of a metal plate (7) and a mold (11) is moved. Then, while moving the press portion (11a) of the mold (11) at a predetermined pitch along the periphery of the decorative concave portion (3), the surface-treated metal plate (8) is pressed by the press portion (11a) of the mold (11). ) Is repeatedly pressed to provide a decorative panel (3) having a cushion layer (4) provided on the inner peripheral surface thereof on a surface-treated metal plate (8) to produce a surface panel (1).
The oxidized uneven surface (5) of the peripheral edge of the decorative molding (2) is in close contact with the cushion layer (4) on the inner peripheral surface of the decorative concave portion (3) provided in the front panel (1). ) Is fitted into the decorative recess (3) of the front panel (1), and the decorative molding (2) is adhered and fixed to the decorative recess (3), and the cushion layer (4) on the inner peripheral surface of the decorative recess (3) is fixed. ) And the oxidized uneven surface (5) provided on the outer peripheral surface of the decorative molding (2), fixing the decorative molding (2) to the decorative recess (3) of the surface panel (1) so as not to come off. Manufacturing method of door. The surface of the decorative molding (2) that fits into the decorative concave (3) is flush with the surface of the front panel (1), or the surface of the decorative molding (2) is more decorative than the surface of the front panel (1). The method for manufacturing a door according to claim 1, wherein the door is located inside (3). The method for manufacturing a door according to claim 1, wherein the decorative molding (2) is bonded to the bottom of the decorative recess (3) of the front panel (1) via a double-sided adhesive tape (6).

Images