JP3738286B2 - Smooth stable door - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a smooth stable door with little dimensional change, excellent dimensional stability, and less warping or twisting.
[0002]
[Prior art]
As shown in FIG. 12, the conventional door 9 has a pair of substrate materials 92 attached to the upper and lower front and back sides of the core material 91, and a pair of decorative members 93 on the upper and lower front and back sides of the substrate material 92. It is stuck.
Since this door 9 generally has a hollow portion 90 at the center, it is called a flush door.
[0003]
Further, as shown in FIGS. 13 and 14, one end of each of the vertical beam 911 and the horizontal beam 912 is cut and formed by “joining” 94 or “joining joining” 94 or by tenon insertion. A “through wedge fastening” 95 is performed.
[0004]
In Patent Document 1, a “non-water-permeable / moisture-permeable layer” (not shown) is formed on the back surface of the wooden decorative board, which is the substrate material 92, to prevent moisture from being transferred to the core material 91, and A method for preventing the door from warping has been proposed.
[0005]
On the other hand, Patent Document 2 proposes a method for preventing warpage of the flash door by sticking a wooden decorative board having a moisture-proof layer attached to both surfaces of the flash door core.
[0006]
As the woody decorative board, for example, it is disclosed to use a plywood board, a particle board, a strand board, or a board in which a plastic sheet, impregnated paper or the like is attached.
[0007]
On the other hand, the applicant previously described in Japanese Patent Application Laid-Open No. H10-260, “A substrate is formed on a core material, a moisture-proof layer in which an adsorbent is mixed is formed on the core material, and a makeup is formed on the moisture-proof layer. The patent application of the content of "the flash door characterized by forming a board and forming the partial textual hollow part enclosed by the said core material and a board | substrate is proposed.
[0008]
[Patent Document 1]
JP-A-7-54553 [Patent Document 2]
JP 7-18893 A [Patent Document 3]
Japanese Patent Application No. 2002-213871
[Problems to be solved by the invention]
However, according to the invention of Patent Document 1, the “non-water-permeable / moisture-permeable layer” reacts with the moisture in the air or the adherend mainly like “polymethylene polyphenyl polyisocyanate”. Is a substance that forms
[0010]
Therefore, the cost of forming the “water-permeable / moisture-permeable layer” is high, and in forming this layer, a wooden decorative board is immersed in a solution of “polymethylene phenyl polyisocyanate”. Impregnation and drying treatment must be performed, which is complicated.
[0011]
On the other hand, according to the invention of Patent Document 2, it is shown that a wood board having a relatively large dimensional change is used, such as a plywood or a particle board. Therefore, as shown in FIG. 13 and FIG. 14, since the fitting force is weak at the joint portion of “joint joint” or “joint joint” 94 or “through wedge tightening joint” 95, “clearance” or “dimension difference”. Causes distortion.
[0012]
In the above two conventional inventions, if the moisture management of the plywood or the particle board is insufficient, or if the formation layer of the “non-permeable / moisture permeable layer” is thin and insufficient, the flash door It will be accompanied by warping and twisting.
[0013]
On the other hand, even in the prior art document 3, since the moisture-proof layer is further formed and the effect is insufficient, it is not possible to sufficiently prevent the flash door from being warped or twisted.
[0014]
Therefore, the present invention has been made in view of the above problems, and the problem to be solved by the present invention is to use a material that is structurally strong and has little dimensional change, and further, moisture and heat do not move to the core material. According to the configuration, it is intended to provide a smooth and stable door with little dimensional change, excellent dimensional stability, and less warping or twisting.
[0015]
[Means for Solving the Problems]
In order to solve the above problems, the means adopted by the present invention are as follows. In addition, in order to describe the present invention more specifically, the following description will be given with reference numerals used in the examples.
[0016]
First, according to the present invention , the core material 11 that forms the vertical beam 111 and the horizontal beam 112, and the pair of surfaces on the upper and lower surfaces of the core material 11 are formed with the joining members 13 interposed therebetween. The upper and lower front and back substrate members 12 and a pair of front and rear decorative members 15 formed by interposing the upper and lower front and rear surface joining members 13 of the substrate member 12;
The core material 11 and the substrate material 12 provide a smooth and stable door 1 which is made of dimensionally stable wood (see FIGS. 1, 2 and 3).
[0017]
Thereby, the smooth stable door 1 with little dimensional change and excellent dimensional stability can be provided.
[0018]
Next, the means adopted by the present invention is that the dimensionally stable wood is made of laminated material 2 (see FIGS. 5 to 7) having anisotropic fibers in which wood fibers are arranged in multiple directions, and a part of the wood fibers is formalized. The present invention provides a smooth and stable door 1 characterized by being a formalized wood with reduced hydrophilicity and a lumbar core plywood whose core material is groundwood.
[0019]
Thereby, since the core material 11 and the board | substrate material 12 have few dimensional changes and are excellent in dimensional stability, especially the core material 11 in the uneven | corrugated fitting joint part 113 in the both ends, gap, a dimensional change distortion, etc. Can be prevented.
[0020]
And the means taken by the invention according to claim 3 is that the core material 11 of the vertical beam 111 and the horizontal beam is detachable with a stool dovetail joint or a stool stool joint or a shape corresponding to the detachable and high joint force state. It is possible to provide the smooth and stable door 1 having the uneven fitting joint 113.
[0021]
Thereby, in particular, the uneven fitting joint 113 between the vertical beam 111 and the horizontal beam 112 at both end portions of the core member 11 is detachable, and has a high bonding force and a smooth and stable door 1 having a strong structure. Can be obtained.
[0022]
The means employed by the present invention is to provide a smooth and stable door 1 in which the joining member 13 is an adhesive containing an adsorbent or a sheet for adhesive joining.
[0023]
As a result, moisture in the air and moisture contained in the substrate material 12 do not move to the core material 11, and warpage and twisting of the core material 11 are eliminated. Further, it is possible to prevent moisture in the air from passing through the decorative member 15 and the like and transferring to the substrate material 12 and the core material 11.
[0024]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be specifically described with reference to the drawings used in the examples.
[0025]
As shown in FIGS. 1 to 4, the core material 11 is formed by a vertical beam 111 and a horizontal beam 112, and an uneven fitting joint 113 is formed at both ends of the vertical beam 111 and the horizontal beam 112 (FIG. 4). And FIG. 9). As the uneven fitting joint 113, for example, a sitting dovetail (FIG. 4), a seating dovetail (FIG. 9), and a shape corresponding to this is a large sickle joint, a waist-filled sickle joint (see FIG. 10), etc. There is. This is because these uneven fittings provide the highest bonding strength compared to other uneven fittings.
[0026]
Thereby, the vertical crosspiece 111 and the horizontal crosspiece 112 can form the uneven | corrugated fitting joint part 113 of the strong structure which can be attached or detached and has high joining force in the both ends. Therefore, the core material 111 has less dimensional change, excellent dimensional stability, and less warpage and twisting of the smooth and stable door 1.
[0027]
And the uneven | corrugated fitting joining part 113 in the both ends of the said vertical bar 111 and the horizontal bar 112 is firmly reinforced using the jig | tool for fitting reinforcement (refer FIG. 3). Examples of the fitting reinforcement jig include wood screws and tapping screws (screw nails).
[0028]
The core material 11 and the substrate material 12 are made of dimensionally stable wood.
Here, as dimensionally stable wood, for example, a laminated material 2 (see FIGS. 5, 6, and 7) having anisotropic fibers in which wood fibers are arranged in multiple directions and a part of the hydroxyl cross-linking of wood fibers. Formalized wood (not shown) that has been subjected to a chemical treatment for formalizing it to reduce hydrophilic groups, and a lumbar core plywood (not shown) that is a kind of special plywood that uses groundwood as a core material in the same manner as the laminated material 2 )and so on.
[0029]
As shown in FIG. 7, the laminated material 2 is coated with a cover plate, a lauan thin plate, a plastic reinforced sheet or the like on its four-sided peripheral surface, and particularly has little dimensional change and excellent dimensional stability. .
In this regard, no such dimension-stabilized wood is used in Patent Documents 1 and 2 or the “flash door” of the previous application.
[0030]
In the formalized wood, since a part of the hydroxyl cross-linking bond of the wood fiber is formalized, the moisture content in the wood fiber decreases correspondingly with the decrease of the hydrophilic group in the wood fiber. As a result, the dimensional change is reduced, and it is considered that the dimensional stability is excellent.
[0031]
The lumbar core plywood is made of a sawn timber like the glulam 2, and single plates are used for the core plate, front plate, back plate, etc., so there is little dimensional change among the plywood, and it is dimensionally stable. It is considered that the core material 11 and the substrate material 12 are free from warping and twisting.
[0032]
And the laminated material 2 and the core material of the lumbar core plywood are preferably hardwood timbers such as “keyaki” and “apiton” selected from the waste materials of wooden buildings. As a result, it is possible to effectively use wooden building waste that is not actively used at present, so it is extremely industrially useful in light of trends in recycling society, environmental issues, resource depletion issues, etc. is there. These are not described at all in the patent document or the previous application.
[0033]
The joining member 13 is an adhesive having an adsorbent or a sheet-like material for adhesive joining.
Here, examples of the adsorbent used in the present invention include fine powders such as activated carbon, activated clay, zeolite, and bentonite. Thereby, moisture in the air and moisture in the substrate material 12 are absorbed, and in particular, one kind of viscosity mineral such as theorite and bentonite is taken into the molecule as one kind of bound water, so the moisture absorbed by the adsorbent is The air is not easily released even when it is dried in winter. Examples of the adhesive include melamine urea resin, phenol resin, and vinyl acetate resin. In addition, as the sheet material for adhesive bonding, there are various paper-made sheet materials.
[0034]
This point is different from the “non-water-permeable / moisture-permeable layer” described in Patent Document 1. In addition, since the “moisture-proof layer” described in Prior Art 2 does not absorb moisture itself, there is a possibility that water accumulates at the peripheral portion of the “moisture-proof layer” and the moisture moves to a substrate such as a plywood.
[0035]
On the other hand, in the patent application, only “one moisture barrier layer (moisture absorbing layer)” is formed between the decorative plate and the substrate, and the joining member 13 containing a plurality of adsorbents as in the present invention. The smooth and stable door 1 having a large difference in operational effect.
[0036]
As described above, the present invention is different from Patent Documents 1 and 2 and the prior application. First, the core material 11 constituting the vertical beam 111 and the horizontal beam 112, and further, the substrate material formed on the upper and lower surfaces of the core material 11 Since dimensional stability wood is used for No. 12, there is little dimensional change and excellent dimensional stability. This means that the bonding member 14 can prevent moisture from being transferred to the core material 11 and the substrate material 12.
[0037]
Further, both end portions of the core material 11 are constituted by uneven fitting joint portions 113. Therefore, in the uneven fitting joint portion 113, there is no error such as “gap” or “dimensional distortion” caused by the dimensional change of the core material 11.
[0038]
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
Example 1
As shown in FIG. 1, the smooth and stable door 1 of the present example has upper and lower front and back substrate materials formed on the pair of surfaces on the upper and lower front and back sides of the core member 11 with bonding members 14 interposed therebetween. 12 and a pair of front and back decorative members formed by interposing a joining member 14 on the upper and lower front and back sides of the substrate material 12.
[0039]
The said core material 11 and the board | substrate material 12 consist of the laminated material 2 which has the anisotropic fiber in which the wood fiber was arranged in multiple directions.
As shown in FIG. 5, the laminated material 2 is formed by sequentially arranging a plurality of short wooden pieces 21 having a predetermined plate thickness in the direction of occurrence of warping and twisting on the upper and lower surfaces of the front surface side and the back surface side. The short wooden pieces 22 in which a large number of wood fiber directions are sequentially arranged in the sticking direction are alternately laminated and joined in the core portion.
[0040]
The short wood pieces 21 and 22 were mainly hardwood timber such as beech, oak, and apton selected from wooden construction waste. The multi-directional array 14 is formed by cold press molding using resorcinol resin. In addition, the plate | board thickness of the core material 11 was about 30 millimeters, and the plate | board thickness of the board | substrate material 12 was about 10 millimeters.
[0041]
And as for the said laminated material 2, as shown in FIG. 6, about the thing used for the core material 11, it was set as the 6 layer structure in relation to plate | board thickness. Moreover, as shown in FIG. 7, it was set as the veneering structural member which apply | coated the transparent urethane coating to the four-side periphery part of the said laminated material 2. As shown in FIG. Thereby, dimensional stability and durability improved.
[0042]
The substrate material 12 has a three-layer structure in relation to the plate thickness as shown in FIG. Further, as shown in FIG. 7, the substrate material 12 also has a four-side peripheral portion as a veneering structural member in the same manner as the core material 11.
[0043]
Using the core material 11 and the substrate material 12 manufactured as described above, a smooth and stable door 1 was configured as shown in FIGS. In the conventional laminated lumber, the wood fibers are substantially in the same direction, and coniferous wood such as cedar and firewood is mainly used.
[0044]
As shown in FIG. 2, the smooth and stable door 1 is composed of the core material 11 by combining the vertical beam 111 and the horizontal beam 112 so as to be orthogonal to each other. And it joined firmly by the uneven | corrugated fitting joining part 113 in the both ends of the vertical beam 111 and the horizontal beam 112. FIG.
[0045]
As the concave-convex fitting joint 113, as shown in FIG. And this uneven | corrugated fitting joining part 113 was reinforced-joined using the wood screw nail 17 as shown in FIG.
Thereby, the uneven fitting joint part 113 was removable and was able to comprise the seat dovetail 114 which has high joint force.
[0046]
And as shown in FIG. 1, the decorative member 15 was stuck on the upper and lower front and back sides of the substrate material 12. As the decorative member 15, a melamine resin decorative board was used. Further, the decorative member 15 and the substrate material 12 were firmly attached using the adhesive 14 and the adhesive bonding sheet 13 together.
As the adhesive 14, a water-soluble adhesive made of melamine / urea modified resin was used. In addition, the manufacture flow sheet of the smooth stable door 1 is as shown in FIG.
[0047]
Moreover, as the sheet-like material 13 for adhesive bonding, a sheet-like material in which an adsorbent made of a mixed fine powder of zeolite and bentonite is incorporated into a mixed fiber of bleached pulp containing an adsorbent and Japanese paper pulp of “Kouzo Mitsumata”. Things were used.
[0048]
As shown in FIGS. 1 to 3, the smooth and stable door 1 configured in this way is a relatively light weight called a flash door having a hollow portion 16 in the center surrounded by the core material 11 and the substrate material 12. It is convenient for transportation and installation.
[0049]
What should be noted here is that the sheet-like material 13 for adhesive bonding using a water-soluble melamine resin as a binder for the sheet-like material is constructed. Thereby, joining property and durability improved. The adhesive 14 contains about 5% of the adsorbent. Thereby, the water | moisture-content absorptivity which an adsorbent absorbs improved.
[0050]
(Example 2)
In this example, as shown in FIGS. 8 and 9, the melamine resin decorative board as the decorative member 15 in Example 1 is a diallyl phthalate (commonly called “dup”) resin decorative board 151. Further, instead of the laminated material 2 as the substrate material 12, a lumbar core plywood 121 is used.
[0051]
And the sheet-like thing as the joining member 13 is replaced with the inorganic paper-making sheet-like substance 131 of rock wool and glass fiber. Further, an epoxy-modified phenol resin adhesive 141 is used instead of the melamine / urea-modified resin as the adhesive 14. The other configurations were the same as those in Example 1.
[0052]
Thereby, fireproof heat insulation improved rather than the smooth stable door 1 which concerns on Example 1. FIG. This is because the inorganic papermaking sheet 131 is used.
[0053]
Here, a manufacturing flow sheet for the smooth and stable door 1 common to the first and second embodiments will be briefly described.
First, the core material 11 is joined by the seat dovetail 114 or the seat sickle joint 115. Next, the adhesive 14 mixed with the adsorbent is uniformly applied on the surfaces of the core material 11 and the substrate material 12. And the laminated material 2 or the lumbar core plywood 121 is stuck. Here, the core material 11 and the substrate material 12 are bonded by the adhesive 14 with the bonding member 13 interposed during the bonding. And the decorative member 15 is stuck on the upper and lower front and back sides by the adhesive 14 with the bonding member 13 interposed on the surface of the substrate material 12.
【The invention's effect】
The present invention is constituted by the technical features described in claims 1 to 3 . Therefore, there are various effects as shown below.
[0054]
First, according to the present invention , it is possible to provide a smooth and stable door 1 which is less dimensional change, warp and twisted and has excellent dimensional stability.
Next, according to the present invention , the core material 11 and the substrate material 12 have little dimensional change and the occurrence of warping and twisting and are excellent in dimensional stability. In 113, it is possible to prevent gaps, dimensional change distortion, and the like.
[0055]
According to the third aspect of the present invention, in particular, the uneven fitting joint 113 between the vertical beam 111 and the horizontal beam 112 at both ends of the core member 11 is detachable and has a high bonding force. Thus, a smooth and stable door 1 having a strong structure can be obtained.
Furthermore, according to the present invention , moisture in the air and moisture contained in the substrate material 12 are not transferred to the core material 11, so that the core material 11 is not warped or twisted. In addition, it is possible to prevent moisture in the air from passing through the decorative member 15 and the like and shifting to the substrate material 12 and the core material 11.
[0056]
As mentioned above, according to this invention, since the core material 11 and the board | substrate material 12 are comprised by the dimension stable wood, it does not produce a clearance gap or a dimensional change distortion in the uneven | corrugated fitting joining part 113, and it is detachable and has high joining force. The smooth stable door 1 having the uneven fitting joint 113 can be provided.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view taken along line AA of a smooth and stable door according to a first embodiment.
FIG. 2 is a partially cutaway front view of a smooth and stable door according to the first embodiment.
FIG. 3 is a cross-sectional view of the smooth stable door-smooth stable door of the smooth stable door according to the first embodiment.
4 is a perspective view of an uneven fitting joint of a smooth stable door according to Embodiment 1. FIG.
FIG. 5 is a perspective view of a laminated material used for the smooth and stable door according to the first embodiment.
6 is a perspective view of a laminated material used for a core material of a smooth and stable door according to Embodiment 1. FIG.
FIG. 7 is a perspective view of a veneered laminated material used for the smooth and stable door according to the first embodiment.
FIG. 8 is a cross-sectional view taken along the line B-B of the smooth stable door according to the second embodiment.
FIG. 9 is a perspective view of an uneven fitting joint of a smooth stable door according to a second embodiment.
FIG. 10 is a perspective view of an uneven fitting joint of another embodiment of a vertical beam and a horizontal beam of a smooth stable door.
FIG. 11 is an explanatory view showing a production flow sheet for a smooth and stable door.
FIG. 12 is a cross-sectional view of a central portion of a conventional flash door.
FIG. 13 is a perspective view showing an example of a fitting state between a vertical beam and a horizontal beam of a conventional door.
FIG. 14 is a perspective view showing a fitting state of another aspect of a vertical beam and a horizontal beam of a conventional door.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Smooth stable door 11 Core material 111 Vertical beam 112 Horizontal beam 113 Concave fitting joint 12 Substrate material 13 Joining member 14 Adhesive 15 Cosmetic member 16 Hollow part 2 Glue

Claims (3)

A core material that forms a vertical beam and a horizontal beam, and upper and lower front and back substrate materials that are formed on each of a pair of surfaces on the upper and lower front and back sides of the core member with a bonding member interposed therebetween, It consists of a pair of front and back decorative members formed by interposing bonding members on the upper and lower front and back sides of the substrate material,
The core material and the substrate material are made of dimensionally stable wood composed of a laminated material having anisotropic fibers in which wood fibers are arranged in multiple directions .
The joining member includes an adhesive joining sheet material in which an adsorbent composed of a mixed fine powder of zeolite and bentonite is incorporated into a mixed fiber of bleached pulp and Japanese paper pulp, and a water-soluble melamine resin is used as a binder. A smooth and stable door. A core material that forms a vertical beam and a horizontal beam, and upper and lower front and back substrate materials that are formed on each of a pair of surfaces on the upper and lower front and back sides of the core member with a bonding member interposed therebetween, It consists of a pair of front and back decorative members formed by interposing bonding members on the upper and lower front and back sides of the substrate material,
The core material and the substrate material are made of dimensionally stable wood made of lumbar core plywood ,
A smooth and stable door , wherein the joining member is an inorganic paper-made sheet of rock wool and glass fiber and an epoxy-modified phenolic resin adhesive . 3. The smooth stable door according to claim 1, wherein a core material of the vertical beam and the horizontal beam has a concavo-convex fitting joint portion that is detachable and has a high bonding force formed of a stool dovetail. .

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