JP2003161078A - Wood door with flamed stile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the flamed style wooden door from warping. <P>SOLUTION: In a wooden door 10 where a style 20 is assembled at least to a vertical side portion of a panel board 1, a V-shaped cut 23 is made as a style 20 in the section on one surface of a wooden fiberboard and folded, adhered and laminated to two layers and required processing is carried out. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wooden door, and more particularly to a vertical-framed wooden door in which a vertical frame is attached to at least a vertical side portion of a mirror plate.

[0002]

2. Description of the Related Art As shown in FIG. 3, a single wooden fiberboard such as solid wood or MDF or a multi-layered wooden fiberboard is used as an end plate 1, and a vertical frame 2 and a horizontal frame 3 are assembled around the mirror plate 1. Wooden doors are widely used. Wood materials such as solid wood and wood fiberboard are susceptible to dimensional changes due to moisture absorption and release, which is not so large for normal size wood doors, but relatively narrow like tall cabinets and closet doors. However, those with a high height (for example, 1600 to 24
When it is about 00 mm), the warp may occur mainly due to the dimensional change of the end plate 1.

As a wooden door panel in which the occurrence of warpage is suppressed, Japanese Patent Laid-Open No. 9-96171 discloses a central material M.
There is described a wood door panel configured by forming a core material in which LVL end materials are joined by specifying the directionality on both side ends of the DF, and joining a single plate to the front and back surfaces of the core material. It is expected that warpage will be suppressed to some extent by using a panel made by combining several such materials as a mirror plate, but when manufacturing a panel, it is complicated to combine multiple materials and integrate them. Need some work.

The warp of the end plate 1 is also suppressed by a vertical frame 2 attached to its vertical side portion. As an example, as shown in FIG. 4, a base material in which two MDFs 3 and 3 are adhered and laminated is used, and the base material is molded into a required shape, and a surface decorative material is lapped on the surface as necessary to make the frame 2a
Is being created. By using the frame member 2a as the vertical frame, it is possible to suppress the warpage of the entire wooden door even if the end plate is a solid material.

[0005]

The present inventors have manufactured a number of wooden doors assembled with the frame members 2a shown in FIG. 4 as vertical frames. The target wooden door is a tall door as described above. If the width is relatively narrow, such as the door of a cabinet or a closet, but the height is about 1600 to 2400 mm, the vertical frame itself may warp, which is one of the causes. We have experienced that it may not be possible to completely prevent the wooden door from warping.

As a result of many experiments and studies, when the individual MDFs 3 and 3 laminated in two layers have the same density, no significant warpage occurs in the long vertical frame member 2a. It was found that when there is a difference in density between individuals, the density distribution is out of balance, which causes a non-negligible amount of warpage. This problem can be solved by laminating MDFs having the same density and adjusting the base material, but commercially available MDFs having a density in the range of 0.4 to 0.8 are mixed, and the same among them. Selecting and using only those with a density is not a practical solution in terms of cost.

The problem can be solved if it is possible to simply produce the frame having the cross-sectional shape shown in FIG. 4 from one MDF, but it is practically impossible, and it is usually used as a door for a tall cabinet or a closet. Considering the thickness of the wooden door, it is not possible to directly produce one with such a thickness from one commercially available wooden fiberboard, and it is absolutely necessary to bond and laminate the two to form the base material. Becomes
The above applies not only to MDF but also to other wood fiber boards (HDF and the like).

The present invention has been made in view of the above circumstances, and is a vertical frame-composed wooden door having a structure in which a vertical frame made of a wood fiber board is attached to at least a vertical side of a mirror plate. It is an object of the present invention to provide a vertical-framed wooden door that suppresses the occurrence of warpage as much as possible, and as a result can prevent the entire wooden door from warping.

[0009]

A vertical frame door according to the present invention is a vertical frame wooden door in which a vertical frame is attached to at least a vertical side portion of a mirror plate. As the vertical frame, one of wooden fiber boards is used. It is characterized in that a base material in which a cut having a V-shaped cross section is formed in the surface and the two layers are bonded and laminated and subjected to a required process is used.

There is no limitation on the material of the mirror plate, and the material of the mirror plate used in the conventional wooden door, for example, a solid plate material, a wood working material such as MDF, or a glass material can be used as it is. The wood fiber board is preferably MDF because of its good surface properties and machinability, but it is not limited to this and may be HDF. There may or may not be a horizontal frame. When the horizontal frame is attached, it may be a horizontal frame manufactured by a conventional method or a horizontal frame formed in the same shape as the vertical frame according to the present invention.

According to the present invention, the vertical frame is made up of two layers, each of which has two parallel V-shaped cuts formed by V-cutting and is folded on one surface of one wood fiberboard. Made from a substrate formed by adhesive lamination. In the state where the cut is made, the high-density surface layer on the other surface of the wood fiber board remains as it is, and it is easy to fold it at the cut portion and adhere and laminate the two layers. Further, in the base material after the adhesion and lamination, a high-density surface layer is exposed on three surfaces except one side surface, and a vertical frame having high surface smoothness can be obtained. A vertical frame is formed by performing the required molding processing such as the necessary chamfering processing and molding processing of the end plate insertion port on the above base material, and by assembling the vertical frame to the vertical side of the end plate by a conventionally known method. A vertical wooden frame door according to the present invention is formed.

Although the vertical frame has a two-layer structure,
The whole is composed of one wood fiberboard, and unlike the case where two different wood fiberboards are adhesively laminated, there is no difference in the density between layers, and the warpage occurs due to the loss of density balance. Is suppressed. In one wood fiber board, the surface layer has a high density and the inner layer has a lower density, but the difference in the density distribution does not disturb the overall density balance. As a result, the vertical-framed wooden door according to the present invention in which the above-mentioned vertical frame is assembled suppresses warpage.

As described above, since the three surfaces of the vertical frame according to the present invention are composed of the high-density surface layer of the wood fiberboard and have high surface smoothness, they can be used as they are as the vertical frame. it can. However, it goes without saying that a surface decorative material such as a synthetic resin sheet, a veneer sheet, or decorative paper may be wrapped on the surface of the vertical frame.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION One embodiment of a vertically framed wooden door according to the present invention will be described below with reference to the drawings. FIG. 1 shows a vertical frame 20 to be assembled to a vertical wooden frame door 10 according to the present invention together with its manufacturing process. At first,
A wood fiberboard 21 such as MDF is prepared (FIG. 1a).
The vertical length of the wood fiberboard 21 is the wood door 1 to be manufactured.
It shall be equal to or longer than the height of 0. The wood fiber board 21 is cut out in a predetermined width in consideration of the size of the vertical frame 20 to be attached to the end plate 1, and the wood fiber board piece 22 is elongated.
And

From one surface side of the wood fiberboard piece 22, 90
Two parallel cross-sections V adjacent to each other with an opening angle of 4 degrees
V-shaped cuts (V-cut grooves) 23, 23 are cut and formed in the longitudinal direction (FIG. 1b). At that time, at least a high-density surface layer 24 is left between the top portion 23a of each V-cut groove 23 and the other surface of the wood fiberboard piece 22.

Next, an adhesive is applied to the surface on which the V-cut groove is formed and the V-cut surface, and the V-cut grooves 23 and 23 are formed.
Fold it so that the whole is laminated in two layers. Thereby, the base material 25 for the vertical frame is formed (Fig. 2c). The high-density surface layer 24 is exposed on three surfaces of the base material 25 after the adhesion and lamination except the one side surface 26, and the base material 25 has high surface smoothness.

After the adhesive is cured, the base material 25 is subjected to necessary molding processing such as chamfering processing and molding of the end plate insertion port 27 (FIG. 1d), and further, if necessary, a suitable surface The vertical frame 20 according to the present invention is formed by lapping the decorative material 28 (FIG. 1).
e). The vertical frame 20 thus formed is used as an end plate 1 that has been conventionally used.
By assembling to the vertical side portion by a conventionally known method, the vertical-framed wooden door 10 according to the present invention shown in FIG.

[0018]

As described above, the vertical frame 20 according to the present invention.
Although it has a two-layer structure, the whole is composed of one piece of wood fiber board 21, and the occurrence of warpage due to the loss of density balance is suppressed. As a result, in the vertical-framed wooden door 10 according to the present invention, the occurrence of warpage is greatly suppressed as compared with the wooden door manufactured by the conventional construction method.

[Brief description of drawings]

FIG. 1 is a view for explaining a vertical frame to be assembled to a vertical wooden frame door according to the present invention together with its manufacturing process.

FIG. 2 is a perspective view showing, in a partial cross section, a vertical-framed wooden door according to the present invention.

FIG. 3 is a perspective view (FIG. 3a) showing a vertical-framed wooden door made by a conventional construction method and a sectional view taken along line bb thereof.

FIG. 4 is a perspective view showing a vertical frame manufactured by a conventional method.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Vertical-frame combined wooden door, 20 ... Vertical-frame, 21 ... Wood fiber board, 23 ... V-shaped cross-section notch (V-cut groove), 24
... surface layer, 25 ... base material for vertical frame, 27 ... end plate insertion port, 2
8 ... Wrapping material

Continued front page    F-term (reference) 2B250 AA11 BA03 BA05 CA11 DA04                       EA02 EA13 EA15 FA13 FA21                       FA29 FA31 GA05                 2E016 JC07 KA06 LA01 LB09 LB11                       LB13 MA07

Claims (3)

[Claims] 1. A wooden door in which a vertical frame is attached to at least a vertical side portion of a mirror plate, and as the vertical frame, a notch having a V-shaped cross section is formed on one surface of a wooden fiber board to be folded into two layers. A vertically framed wooden door characterized by being used after being subjected to the required processing after adhesive lamination. 2. A vertical wooden frame door according to claim 1, wherein a surface decorative material is lapped on the surface of the vertical frame. 3. The vertical framed wood door according to claim 1, wherein the wood fiberboard is MDF.