JP2000043195A - Production of rail and stile coated with sliced veneer sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To produce a rail and stile having a three-dimensional appearance simply at low costs without using solid wood by a method in which an adhesive is applied on a nonwoven fabric on the back a sliced veneer sheet in which the nonwoven fabric is laminated on the back of a sliced veneer, and the sliced veneer sheet is stuck on a three-dimensional base material by vacuum forming. SOLUTION: A sliced veneer sheet 3 in which an adhesive is applied on a nonwoven fabric 2 on the back is adhered to each of the plane parts of the lower parts of the lower and side surface of a base material 4 while being pressed by a press roll. Next, the sheet 3 in which the adhesive was applied on the nonwoven fabric 2 on the back is laminated on the remaining part, to which the sheet 3 was not adhered by the press roll, of the three-dimensional base material 4 by vacuum forming. In this process, the sheet 3 which was cut in the size of the outside shape of the upper surface of the base material 4 added with the thickness of the base material 4 is used, and an adhesive such as a urea-vinyl acetate type adhesive is applied on the back of the cut sheet 3. Next, the sliced veneer sheet 3 is made to adhered along the upper and side surfaces of the base material 4 by a vacuum forming machine.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a veneer sheet laminating frame in which veneers are laminated on the surface of a base material.

[0002]

2. Description of the Related Art Conventionally, a frame having a three-dimensional shape in furniture or fittings is formed by assembling solid wood 30 having a three-dimensional shape at both ends of a base material 4 such as a particle board as shown in FIG. The veneer plate 1 is attached to the flat portions on both the front and back sides, and the outer surface of the solid wood 30 is polished by hand, and the polished outer surface is wet-coated to form a three-dimensional frame. Was.

However, in the above-mentioned conventional example, the cost is high because the solid wood 30 is used, and the laminated material 31 is formed by integrating the base material 4 such as a particle board and the solid wood 30. The work is time-consuming and time-consuming, and the surface of solid wood 30 having a three-dimensional shape is manually polished and wet-painted, so that drying equipment is required. In addition, there is a problem that it is necessary to treat paint waste liquid.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and is a veneer sheet-attached frame capable of easily and inexpensively manufacturing a frame having a three-dimensional appearance without using solid wood. It is an object of the present invention to provide a method for manufacturing the same.

[0005]

Means for Solving the Problems To solve the above-mentioned problems, a method for manufacturing a veneer sheet stuck frame according to the present invention comprises:
An adhesive is applied to the nonwoven fabric 2 on the back surface of the veneer sheet 3 in which the nonwoven fabric 2 is laminated on the back surface side of the veneer sheet 3, and the veneer sheet 3 coated with the adhesive on the back surface is formed into a three-dimensional base material 4 by vacuum forming.
It is characterized in that it is attached to By adopting such a method, the veneer 1 is reinforced with the nonwoven fabric 2,
Therefore, even if the veneer sheet 3 is attached to the base material 4 having a three-dimensional shape by vacuum forming, the veneer sheet 3 can be attached along the three-dimensional shape without cracking. Further, since the veneer sheet 3 in which the nonwoven fabric 2 is laminated on the back surface side of the veneer 1 is attached to the base material 4 having a three-dimensional shape by vacuum forming, it can be easily and accurately attached to the base material 4 having a complicated three-dimensional shape. Things.

Further, it is preferable that a transparent resin sheet 4 is adhered to the surface side of the veneer sheet 3, and thereafter, the veneer sheet 3 having the resin sheet 4 adhered to the surface is adhered to the base material 4. Since the resin sheet 4 is attached to the surface side of the veneer sheet 3 and then attached to the base material 4 having a three-dimensional shape,
This can further prevent the veneer sheet 4 from breaking during vacuum forming.

Further, the lower side surface of the base material 4 is flat, and it is preferable that a groove is formed in a lower flat portion of the frame 5 formed by attaching the veneer sheet 3. Thus, even when the veneer sheet 3 is attached to the base material 4 having a three-dimensional shape by vacuum forming, the grooves 9 can be formed easily and accurately.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments shown in the accompanying drawings.

The veneer sheet 3 used in the present invention comprises a nonwoven fabric 2 laminated on the back surface of the veneer 1.
The veneer plate 1 is reinforced by the nonwoven fabric 2 laminated on the back surface of the veneer plate 1 so that the veneer plate 1 is not broken when the veneer plate 1 is attached to a base material 4 having a three-dimensional shape described below by vacuum forming. Here, the veneer sheet 3 may be affixed by vacuum molding to the base material 4 having a three-dimensional shape in a layer configuration in which the nonwoven fabric 2 is laminated on the back surface of the veneer 1 as described above, or A transparent resin sheet 4 made of synthetic resin such as polypropylene is laminated on the surface of the veneer sheet 3 on which the nonwoven fabric 2 is laminated, and the back side of the veneer 1 is reinforced with the nonwoven fabric 2 and the front side is reinforced with the resin sheet 4. May be attached to the base material 4 having a three-dimensional shape by vacuum forming.
When laminating the resin sheet 4 on the front side of the veneer sheet 3, a colorless, transparent or translucent intermediate synthetic resin sheet mainly composed of an acrylic resin is formed on the back surface of the resin sheet 4 made of a synthetic resin such as polypropylene in advance. 6 may be prepared by laminating hot melt 7 on the back surface of intermediate synthetic resin sheet 6 and laminating it on the surface of veneer sheet 3 in which nonwoven fabric 2 is laminated on the back surface of veneer 1. . FIG. 2 shows the veneer sheet 3 having such a layer configuration.
If the intermediate synthetic resin sheet 6 mainly composed of an acrylic resin is laminated between the surface of the veneer 1 and the transparent resin sheet 4 as described above, the intermediate synthetic resin sheet 6 mainly composed of an acrylic resin becomes the veneer 1 It can be in the same state as if it had been painted clear, there is no need for wet painting as before, there is no need for drying equipment as before, paint formulation and coating equipment cleaning is necessary In addition, paint waste liquid treatment is not required, and painting skills are not required.

As an example of the thickness of each layer in the sheet having the layer structure shown in FIG. 2, for example, a polypropylene sheet having a thickness of about 100 μm is used as the resin sheet 4, and a thickness of about 5 μm is used as the intermediate synthetic resin sheet 6. About 15 μm by laminating three layers of acrylic resin
The pot melt 7 is about 5 μm thick, the veneer 1 is about 250 μm thick, and the nonwoven fabric 2 is about 100 μm thick.

A veneer sheet 3 in which a nonwoven fabric 2 is laminated on the back surface of the veneer 1 or a veneer sheet 3 in which a nonwoven fabric 2 is laminated on the back surface of the veneer 1 and a resin sheet 4 is laminated on the front side of the veneer 1
(In this case, the intermediate synthetic resin sheet 6 and the hot melt 7
May be laminated on the base material 4 having a three-dimensional shape in the following manner.

The substrate 4 having a three-dimensional pattern is obtained by processing the surface of, for example, a particle board or a medium-density fiberboard into a three-dimensional shape. In FIG. 3, a step 8 a chamfered in a step shape is formed on the upper part of the side surface of the base material 4, and the step 8 on one side is formed.
A three-dimensional concave / convex pattern portion 8 is formed by providing a concave portion 8b which is further concaved inward in FIG. 4A.

[0013] First, a veneer sheet 3 in which an adhesive is applied to the nonwoven fabric 2 on the back surface is pressed by a pressing roll on a flat portion of the lower surface of the base material 4 and the lower portion of the side surface (portion indicated by A in FIG. 4). As shown in FIG. Next, the veneer sheet 3 in which an adhesive is applied to the nonwoven fabric 2 on the back surface is applied to the remaining portion (the portion indicated by B in FIG. 4) where the veneer sheet 3 is not bonded by the pressing roll of the base material 4 having a three-dimensional shape. They are laminated by molding.

Here, the veneer sheet 3 used for vacuum forming
As shown in FIG. 8, one cut in accordance with the shape of the substrate 4 is used. That is, in FIG.
Is cut to the outer shape of the upper surface of the substrate + thickness of the base material 4, and an adhesive such as a urea vinyl acetate adhesive is applied to the cut back surface of the veneer sheet 3 by a roll coater. The veneer sheet 3 is adhered along the upper surface and the side surface of the base material 4 by the molding machine 11. FIG. 1 (a) (b)
3 shows the order of vacuum forming by the vacuum forming machine 11. First, as shown in FIG. 1A, the base material 4 is set on the lower mold 12, and the veneer sheet 3 is put on the base material 4.
The upper mold 13 is clamped to the lower mold 12 via the silicone rubber 14. Here, a portion of the upper mold 13 corresponding to the base material 4 is a recess 15, and the silicone rubber 14 is disposed along the inner surface of the recess 15 from the lower surface of the upper mold 13. Next, when the silicon rubber 14 is evacuated from a hole 16 provided at a position corresponding to the setting position of the base member 4 of the lower mold 12 by a vacuum pump in the direction of the arrow in FIG. The airtightness is maintained by being sandwiched between the upper mold 13 and the lower mold 12, and therefore, the portion arranged along the inner surface of the recess 15 of the silicone rubber 14 is pulled along the three-dimensional base material 4. Then, the veneer sheet 3 is pressed by the deformation of the silicone rubber 14 and is pressed and adhered along the upper surface and side surfaces of the base material 4. In the figure, reference numeral 17 denotes a heater provided on the upper die 13, which is heated by the heater 17 during the vacuum forming.

According to the present invention, the veneer sheet 3
Is adhered along the three-dimensional uneven pattern portion 8 having the step portions 8a and the concave portions 8b by vacuum forming, the projecting plate 1 is reinforced by the nonwoven fabric 2 or the resin sheet 4 and is not cracked.
a, it can be stuck accurately along the three-dimensional uneven pattern portion 8 having the concave portion 8b. In addition, since it is attached by vacuum forming, it can be attached easily and accurately to the base material 4 having a complicated three-dimensional shape. Therefore, there is no need to form a solid material and a base material such as a particle board by forming a three-dimensional shape part having an uneven surface using solid wood as in the past, and also, the unevenness of the solid material at the time of painting. It is not necessary to polish the surface by hand.

After the veneer sheet 3 is attached to the base material 4 having a three-dimensional shape as described above to form a frame 5 as shown in FIG. 5, a lower plane portion of the frame 5 as shown in FIGS. To form a groove 9. In this case, the portion to be grooved is a boundary portion between the veneer sheet 3 adhered by the above-described holding roll and the veneer sheet 3 adhered by vacuum forming, and each veneer sheet 3 is attached to both ends of the opening of the groove 9. The cut end is located to provide a clean fit. Here, it is conceivable that the groove 9 is formed by previously performing groove processing on the base material 4 having a three-dimensional shape, and then the veneer sheet 3 is attached as described above. It is necessary to remove the veneer sheet 3 covering the groove 9 after the attachment, and the groove 9 can not be confirmed from the surface side of the veneer sheet 3, which significantly deteriorates the workability. However, in the present invention, the base material having a three-dimensional shape is used. The groove 9 can be easily formed in the frame 5 by forming a groove 9 by applying a groove process to the lower flat portion of the frame 5 after attaching the veneer sheet 3 to the frame 4.

[0017]

According to the first aspect of the present invention, an adhesive is applied to the nonwoven fabric on the back surface of a veneer sheet in which a nonwoven fabric is laminated on the back surface side of a veneer, and the adhesive is applied to the back surface. Since the sheet is attached to the substrate having a three-dimensional shape by vacuum forming, the veneer plate is reinforced by a non-woven fabric. As a result, when forming a three-dimensional frame, it can be formed using a veneer without using solid wood as in the past, so solid wood can be used. It is simpler to manufacture and less expensive than those used. Moreover, since the veneer sheet obtained by laminating the nonwoven fabric on the back surface side of the veneer is adhered to a substrate having a three-dimensional shape by vacuum forming, it can be easily and accurately adhered to a substrate having a complicated three-dimensional shape.

According to the second aspect of the present invention, in addition to the effects of the first aspect, a transparent resin sheet is pasted on the surface side of the veneer sheet, and then a resin sheet is pasted on the surface. Since the veneer sheet is adhered to the base material, the veneer sheet can be more reliably prevented from breaking during vacuum forming.

According to the third aspect of the present invention, in addition to the effects of the first aspect of the present invention, the lower side surface of the base material is flat, and the frame is formed by sticking a veneer sheet. Since a groove is formed in the lower flat portion, even if a veneer sheet is attached to a base material having a three-dimensional shape by vacuum forming, the groove can be formed easily and accurately.

[Brief description of the drawings]

FIGS. 1A and 1B are explanatory views showing the order of attaching a veneer sheet to a substrate having a three-dimensional shape by vacuum forming in the present invention.

FIG. 2 is a cross-sectional view showing a veneer sheet having a resin sheet adhered to the surface used in the above.

FIG. 3 is a perspective view showing the base material.

FIG. 4 is a sectional view showing a stage in which a veneer sheet is attached to the lower surface of the base material and the lower portion of one of the side surfaces.

FIG. 5 is a cross-sectional view of a frame formed by attaching a veneer sheet by vacuum forming in the above.

FIG. 6 is a cross-sectional view showing a state in which a groove is formed in the frame.

FIG. 7 is a cutaway perspective view showing a state in which a groove is formed in the above-mentioned frame.

FIG. 8 is an explanatory diagram of an example in which a veneer sheet is cut in accordance with the shape of a base material during vacuum forming.

FIG. 9 is a sectional view of a conventional frame.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Veneer 2 Nonwoven fabric 3 Veneer sheet 4 Resin sheet 5 Frame

Claims (3)

[Claims] 1. An adhesive is applied to a nonwoven fabric on the back surface of a veneer sheet in which a nonwoven fabric is laminated on the back surface side of a veneer plate, and the veneer sheet coated with the adhesive on the back surface is attached to a three-dimensional base material by vacuum forming. A method for manufacturing a veneer sheet pasting frame, characterized in that: 2. The veneer sheet pasting frame according to claim 1, wherein a transparent resin sheet is pasted on the surface side of the veneer sheet, and thereafter, a veneer sheet having a resin sheet adhered on the surface is adhered to a base material. Production method. 3. The lower side surface of the substrate is flat,
The method for manufacturing a veneer sheet-attached frame according to claim 1, wherein a groove is formed in a lower flat portion of the frame formed by attaching a veneer sheet.