JP2014113748A - Plate utilizing rear crack and production method thereof - Google Patents

Plate utilizing rear crack and production method thereof Download PDF

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JP2014113748A
JP2014113748A JP2012269277A JP2012269277A JP2014113748A JP 2014113748 A JP2014113748 A JP 2014113748A JP 2012269277 A JP2012269277 A JP 2012269277A JP 2012269277 A JP2012269277 A JP 2012269277A JP 2014113748 A JP2014113748 A JP 2014113748A
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plate
ribbon
crack
veneer
wood
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Kuniharu Yokoo
国治 横尾
Koji Murata
功二 村田
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UNI WOOD CORP CO Ltd
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UNI WOOD CORP CO Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a plate capable of showing easily various advantages of wood, such as environmental improvement of a living space, especially by urging movement of a component inside or outside the plate, concerning improvement of the plate, and to provide a production method thereof.SOLUTION: In a plate 11 formed by processing a veneer 14 of wood, a rear crack 19 on the wood rear 17 side of the veneer 14 appears at least on a part of the front surface of the plate 11. At least a part of the veneer 14 can be executed as a rotary veneer, and as a ribbon-shaped plate 20 cut in a narrow width in the crossing direction with the rear crack 19. Ribbon-shaped plates 20 are arranged in the warped state in the opening direction of the rear crack 19 by weaving the plurality of ribbon-shaped plates 20 so as to be piled alternately on the front and rear sides, to thereby urge movement of a component inside or outside the wood from the rear crack 19.

Description

本発明は、板材の改良に関するものであり、特に、裏割れを積極的に利用して、板材内外の成分の移動を促すことによって居住空間などの環境改善やデザインの多様化を図ることができる板材に関するものである。 The present invention relates to improvement of a plate material, and in particular, it is possible to improve the environment such as a living space and diversify the design by actively utilizing back cracks to promote movement of components inside and outside the plate material. It relates to plate materials.

今日、スギを主体とする日本の樹木の成長量は年間約8,000万m3以上であるのに対して、日本の木材 消費量は年間約8,000万m3、この内国産材使用量が約1,900万m3であり、成長量と消費量に大きなギャップがある。 Today, the growth of Japanese trees, mainly cedar, is about 80 million m 3 or more per year, while Japanese wood consumption is about 80 million m 3 per year. ten thousand m 3, there is a large gap in consumption and growth amount.

このように、原木の数量が売れないうえに、価格が安いため、山林の手入れが行き届かず、山林が荒廃してしまっている結果、保水力低下、CO2吸収力の低下、農山村の荒廃などの原因となっている。 In this way, the quantity of raw wood cannot be sold and the price is low, so the forests are not well maintained and the forests are devastated. As a result, water retention capacity declines, CO 2 absorption capacity declines, It is a cause of devastation.

例えば、日本の植樹木の80%を占めると言われるスギを例にとると、その性質は、比重が0.4以下と低く、強度が弱く、曲げヤング係数が小さく、生材の含水率が高く、人口乾燥が難しいというものであり、木造建築の構造用材としては最も不適当な材質を持った木材であると言える。 For example, in the case of Japanese cedar, which is said to occupy 80% of Japanese planted trees, its properties are low in specific gravity of 0.4 or less, low strength, low bending Young's modulus, high moisture content of raw materials, It is difficult to dry the population, and it can be said that it is the wood with the most inappropriate material as a structural material for wooden buildings.

需要側の木材産業では、供給が不安定、材質が建築用として外材に劣るなどの問題点があるために、スギの特性を活かした商品開発を怠ってきたことも、日本林業不振の原因のひとつであると言える。 In the demand side of the timber industry, there are problems such as unstable supply and the material is inferior to external materials for construction. It can be said that it is one.

スギの問題解決の基本的な方向としては、木造建築の構造用材としてスギは不適当な樹種であることを関係者全てに徹底を図ることが重要である。その上で、スギの良好な特性や性能に着目した利用を図ることを、基本的な問題解決の方向とすべきである。具体的には、古来から、「柱はヒノキ、梁はマツ、土台はヒバ、造作はスギ」と言われていることを現在の関係者は忘れてしまっている。またスギは造作材の他にその特徴を活かして樽や和船の材料として最高の性能を発揮してきている。 As a basic direction for solving cedar problems, it is important to make sure that all stakeholder members are aware that cedar is an inappropriate tree species as a structural material for wooden buildings. Based on this, the basic problem-solving direction should be to use the cedar with good characteristics and performance. Specifically, the current officials have forgotten that it has been said since ancient times that "the pillars are cypresses, the beams are pine, the foundation is hiba, and the construction is cedar." Sugi has also demonstrated its best performance as a material for barrels and Japanese boats by making use of its characteristics in addition to its artificial materials.

このようにスギは、吸放湿性が高く、健康に有効なテルペン類を蒸散するなどの有利な特性を有するものであり、その特徴を活かして世界に通用する造作用木質材料を開発することが重要である。 In this way, cedar has advantageous properties such as transpiration of terpenes that are highly hygroscopic and effective for health, and it is possible to develop a world-class wood-based material that takes advantage of its characteristics. is important.

このように、吸放湿性が高く、健康に有効なテルペン類を蒸散すると言われるスギに代表されるように、木材には多くの環境改善効果があることが知られており、これを実現することを目的として特許文献1等の提案がなされている。
ところが、スギの造作材としての利用は、コスト面や加工性などの点から未だ試験的な実施段階の域を出ず、大規模な実用化の域には達していないのが現状である。
また、木材資源、特に国内の森林資源の有効活用の重要性は叫ばれるものの、有効活用を図るための方策が実現していないのが実情である。
In this way, wood is known to have many environmental improvement effects, as represented by cedar, which is said to transcribe terpenes that are highly hygroscopic and effective for health. For this purpose, Patent Document 1 and the like have been proposed.
However, the use of cedar as a material for making cedar has not yet reached the trial implementation stage in terms of cost and workability, and has not yet reached the stage of practical application on a large scale.
Although the importance of effective use of wood resources, especially domestic forest resources, is screamed, the actual situation is that measures for effective use have not been realized.

他方、海外木材を中心として、加工木材、特に合板の製造技術に関しては、種々の改良が加えられている。例えば、合板の製造には、木材を円周方向に沿って薄く切断したロータリー単板を積層して用いる場合があるが、ロータリー単板を用いる際の改良が特許文献2や特許文献3には提案されている。ロータリー単板は木材を円周方向に沿って切断するため、その木裏(樹木の内側の面)には、裏割れの発生が避けることができない。そのため、特許文献2では、裏割れの発生がある木裏同士を合わせて積層することによって裏割れを外部に出さないようにすることが提案されており、特許文献3では裏割れをから薬剤を木材内部に含浸させるようにした合板が提案されているが、完成した合板としては裏割れが合板の内部に位置しているものである。 On the other hand, various improvements have been made on the manufacturing technology of processed wood, especially plywood, mainly overseas wood. For example, in the manufacture of plywood, there are cases in which rotary single plates obtained by thinly cutting wood in the circumferential direction are stacked and used. However, improvements in using rotary single plates are disclosed in Patent Document 2 and Patent Document 3. Proposed. Since the rotary veneer cuts the wood along the circumferential direction, the occurrence of cracks on the back of the tree (the inner surface of the tree) cannot be avoided. Therefore, in Patent Document 2, it is proposed to prevent the back crack from coming out by laminating the back of the tree with the occurrence of back crack, and in Patent Document 3, the drug is removed from the back crack. A plywood that has been impregnated into the wood has been proposed, but the finished plywood has a back crack located inside the plywood.

特許4759550号公報Japanese Patent No. 4759550 特開平9−70803号公報Japanese Patent Laid-Open No. 9-70803 特開2004−50782号公報JP 2004-50782 A

本発明は、単板の木裏に現れる裏割れを有効活用することによって、木材の内外の成分の移動を促進し、居住空間における木材の環境改善効果など、木材の利点が発揮されやすくした板材の提供を課題とする。
また、本発明は、上記板材の製造に適するリボン状板の提供を課題とする。
またさらに、本発明は、上記板材の製造方法の提供を課題とする。
The present invention promotes the movement of components inside and outside of wood by effectively utilizing back cracks that appear on the back of a single board, and makes it easier to demonstrate the advantages of wood, such as the environmental improvement effect of wood in living spaces The issue is to provide
Moreover, this invention makes it a subject to provide the ribbon-shaped board suitable for manufacture of the said board | plate material.
Furthermore, this invention makes it a subject to provide the manufacturing method of the said board | plate material.

本発明は、木材の単板を加工した板材において、前記板材の前面の少なくとも一部は、前記単板の木裏の裏割れが現れた開放面によって構成されたものを提供する。この開放面にあっては、前記木裏の前記裏割れが開く方向に、前記単板を反らせた状態に配置されることにより、前記裏割れから前記木材の内外の成分の移動が促されることを特徴とするものである。 The present invention provides a plate material obtained by processing a single plate of wood, wherein at least a part of the front surface of the plate member is constituted by an open surface in which a crack in the back of the single plate appears. In this open surface, by disposing the veneer in a state in which the crack on the back of the tree opens, the movement of components inside and outside the wood is promoted from the crack. It is characterized by.

前記単板は、木材をその円周方向に沿って薄く切断したロータリー単板であることが適当である。前記開放面にあっては、このロータリー単板を前記裏割れと交わる方向に細幅に切断したリボン状板を、前記木裏が凸状に反るように、厚み方向に曲げられて配置されている。前記リボン状板は、前記裏割れが多数本、前記リボン状板の長手方向に形成されており、これらの多数の裏割れが開いた状態に維持され、前記木材の内外の成分の移動が促される。 The veneer is suitably a rotary veneer obtained by thinly cutting wood along its circumferential direction. On the open surface, a ribbon-like plate obtained by cutting the rotary veneer thinly in a direction intersecting with the crack is bent in the thickness direction so that the back of the tree warps in a convex shape. ing. The ribbon-like plate has a large number of back cracks formed in the longitudinal direction of the ribbon-like plate, and the many back cracks are maintained in an open state, and the movement of components inside and outside the wood is promoted. It is.

このリボン状板の配置は、木裏が凸状に反るように配置するものであればよいが、その具体例を示せば、数枚の前記リボン状板を、前記木裏を前にした状態で前後に互いに交差させて配置したものであることが望ましい。これによって、前側に位置する前記リボン状板の木裏が凸状に反らせた状態となる。
前記リボン状板は木表に補強用シートが貼り付けて用いることが、強度維持の観点から望ましい。
The arrangement of the ribbon-like plate may be any arrangement as long as the back of the tree warps in a convex shape. However, if a specific example is shown, several ribbon-like plates are placed in front of the back of the tree. It is desirable that they are arranged so as to cross each other in the state. Thereby, the wood back of the ribbon-like plate located on the front side is warped in a convex shape.
It is desirable from the viewpoint of maintaining strength that the ribbon-like plate is used with a reinforcing sheet attached to a wooden surface.

前記単板の木材の種類は適宜変更して実施することができるが、スギ材の単板を用いた場合には、前記裏割れが開く方向に反らせた状態に配置されることにより表面積が増加し、前記スギ材の内部のテルペン類の蒸散が促されると共に、前記裏割れを通じて外気とスギ材内部との間の水分の移動が促され、外気の湿度を一定に保つ作用を果たすことができる。
また、本発明は、木裏に裏割れが現れたロータリー単板を、前記裏割れと交わる方向に細幅に切断したリボン状板であって、前記リボン状板は、前記裏割れが多数本、前記リボン状板の長手方向に形成されたものであり、前記木裏が凸状に反るように、厚み方向に曲げて配置できるようにしたリボン状板を提供する。
さらにまた、本発明は、木材の単板を加工した板材の製造方法において、前記単板は、その木裏に裏割れが現れたものであり、前記単板を前記裏割れの伸びる方向と交わる方向に細幅に切断することによってリボン状板を製作する工程と、前記木裏が凸状に反るように、前記リボン状板の少なくとも一部を厚み方向に曲げることによって、前記裏割れが開いた状態になるように板材の前面に配置する工程を含むことを特徴とする板材の製造方法を提供する。
The wood type of the veneer can be changed as appropriate, but when a cedar veneer is used, the surface area is increased by being placed in a state in which the back crack is opened. In addition, the terpenes inside the cedar wood are promoted to evaporate, and the movement of moisture between the outside air and the inside of the cedar wood is promoted through the back crack, so that the humidity of the outside air can be kept constant. .
Further, the present invention is a ribbon-like plate obtained by cutting a rotary single plate with a crack appearing on the back of the tree into a narrow width in a direction intersecting with the crack, and the ribbon-like plate has a large number of the cracks. Provided is a ribbon-like plate that is formed in the longitudinal direction of the ribbon-like plate and can be arranged by being bent in the thickness direction so that the back of the tree warps in a convex shape.
Furthermore, the present invention is a method for producing a plate material obtained by processing a single plate of wood, wherein the single plate has a crack appearing on the back of the tree, and the single plate intersects the direction in which the reverse crack extends. Forming the ribbon-like plate by cutting it in a narrow direction, and bending the at least part of the ribbon-like plate in the thickness direction so that the back of the tree warps in a convex shape, thereby causing the back crack to occur. There is provided a method for producing a plate material, comprising a step of arranging the plate material on a front surface of the plate material so as to be in an open state.

本発明は、単板の木裏に現れる裏割れを有効活用することによって、木材の内外の成分の移動を促進すことができ、これによって木材の住居環境の改善効果や、デザインの多様化など、木材の種々の利点が発揮されやすくした板材を提供することができたものである。
また、本発明は、上記の木材の利点が発揮されやすくした板材の製造に用いることができるリボン状板材を提供することができたものである。
さらにまた、本発明は、木材の環境改善効果などの木材の利点が発揮されやすくした板材の製造方法を提供することができたものである。
The present invention can promote the movement of components inside and outside of wood by making effective use of cracks appearing on the back of a single plate, thereby improving the living environment of wood, diversifying design, etc. Thus, it is possible to provide a plate material in which various advantages of wood are easily exhibited.
In addition, the present invention has been able to provide a ribbon-like plate material that can be used for manufacturing a plate material in which the above-described advantages of wood are easily exhibited.
Furthermore, the present invention has been able to provide a method for producing a plate material in which the advantages of wood such as the environmental improvement effect of wood can be easily exhibited.

本発明の実施の形態に係る板材の平面図である。It is a top view of the board | plate material which concerns on embodiment of this invention. (A)同実施の形態に係る板材の第1製造を示す斜視図であり、(B)同第1製造工程により得られた単板の断面図であり、(C)同実施の形態に係る板材の第2製造により得られた単板の断面図である。(A) It is a perspective view which shows the 1st manufacture of the board | plate material which concerns on the same embodiment, (B) It is sectional drawing of the single plate obtained by the 1st manufacturing process, (C) It concerns on the same embodiment It is sectional drawing of the single plate obtained by the 2nd manufacture of the board | plate material. 同実施の形態に係る板材の第3製造を示す説明図である。It is explanatory drawing which shows the 3rd manufacture of the board | plate material which concerns on the same embodiment. 同実施の形態に係る板材の要部断面図である。It is principal part sectional drawing of the board | plate material which concerns on the same embodiment. 本発明の他の実施の形態に係る板材の平面図である。It is a top view of the board | plate material which concerns on other embodiment of this invention. 本発明のさらに他の実施の形態に係る板材の平面図である。It is a top view of the board | plate material which concerns on other embodiment of this invention.

以下、図面を参照しつつ本発明の実施の形態を説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(板材11の構造)図1は、本発明の実施の形態に係るパネル状の板材11の平面図であり、この板材11は、図1に示すように、その前面(後面は図示せず)に、単板14を細幅に切断した複数のリボン状板20が露出している。このリボン状板20は、木裏17を前面側に配置したものであり、多数の裏割れ19が現れている。以下、板材11において、これらの裏割れ19が現れている部位を開放面16と言う。 (Structure of Plate Material 11) FIG. 1 is a plan view of a panel-like plate material 11 according to an embodiment of the present invention. As shown in FIG. 1, the plate material 11 has a front surface (rear surface not shown). In addition, a plurality of ribbon-like plates 20 obtained by cutting the single plate 14 into narrow widths are exposed. This ribbon-like plate 20 has a tree back 17 arranged on the front side, and a large number of back cracks 19 appear. Hereinafter, in the plate material 11, a portion where the back crack 19 appears is referred to as an open surface 16.

この板材11は、複数本のリボン状板20を、縦横に織り上げたものである。詳しくは、木裏17を前面側にした状態で、縦横のリボン状板20を上下に交差させて配置した開放面16の周囲を、枠体15にて囲ったものである。従って、この開放面16においては、木裏17の裏割れ19が開く方向に、単板14が反らされて配置されている。 This plate material 11 is obtained by weaving a plurality of ribbon-like plates 20 vertically and horizontally. More specifically, the frame 15 surrounds the periphery of the open surface 16 in which the vertical and horizontal ribbon-like plates 20 are vertically crossed with the back 17 facing the front. Therefore, on the open surface 16, the single plate 14 is warped in the direction in which the crack 19 of the back 17 opens.

その結果、板材11の開放面16に現れた裏割れ19から、木材内外の成分の移動が促される。例えば、単板14の木材としてスギを用いた場合、健康に有効なテルペン類が、スギ材の内部から開いた裏割れ19を通して良好に蒸散し、また、スギ材の内外の水分(水蒸気)が裏割れ19を通って良好に流通して、外気の湿度を一定に保つ作用が促進される。 As a result, the movement of the components inside and outside the wood is promoted from the crack 19 appearing on the open surface 16 of the plate material 11. For example, when cedar is used as the wood of the veneer 14, terpenes that are effective for health are well evaporated through the crack 19 opened from the inside of the cedar, and moisture (water vapor) inside and outside the cedar is also removed. The effect of maintaining good humidity of the outside air by promoting good circulation through the back crack 19 is promoted.

(製造方法)上記の板材11の構造をより正しく理解されるよう、その製造方法を次に説明する。 (Manufacturing method) The manufacturing method will be described below so that the structure of the plate 11 can be understood more correctly.

第1工程:常法に従い単板14を製造する(図2(A)参照)。この単板14は種々の方法で製造することができるが、板材11を刃物12によって、周方向に沿って薄く長尺状に切断していくロータリー単板であることが適当である。なお、ロータリー単板は、その長手方向(図2(A)の矢印方向)が、板材11の繊維の方向と直交する方向に伸びているものが一般的であるが、これに限らず、斜めに伸びるものであってもよい。 1st process: The single plate 14 is manufactured in accordance with a conventional method (refer FIG. 2 (A)). Although this single plate 14 can be manufactured by various methods, it is appropriate that the single plate 14 is a rotary single plate in which the plate material 11 is cut into a thin and long shape along the circumferential direction with a blade 12. In addition, as for a rotary single plate, what the longitudinal direction (arrow direction of FIG. 2 (A)) is extended in the direction orthogonal to the direction of the fiber of the board | plate material 11 is common, but not only this but diagonally It may extend to.

この単板14にあっては、上記の切断方法を採るため、半径の違いによって、木裏17の長さが木表18の長さよりも、短くなる。その結果、平面状に単板14を配置すると、短い木裏17側に裏割れ19が生じる(図2(B)参照)。この裏割れ19は、切断して得られた長尺状の単板14の横方向に伸びるように形成される。なお、単板14の幅は、刃物12の幅によって規定され、900mm、1200mm、2400mmの横幅で長尺状に伸びるものが一般的であるが、これに限るものではない。 In this single plate 14, since the above-described cutting method is adopted, the length of the tree back 17 becomes shorter than the length of the wood table 18 due to the difference in radius. As a result, when the single plate 14 is arranged in a planar shape, a back crack 19 occurs on the short tree back 17 side (see FIG. 2B). The back crack 19 is formed so as to extend in the lateral direction of the long single plate 14 obtained by cutting. The width of the veneer 14 is defined by the width of the blade 12 and is generally elongated in a horizontal width of 900 mm, 1200 mm, or 2400 mm, but is not limited thereto.

従来、この裏割れ19は、木材の傷と考えられ、それを隠すようにして合板等の板材11は製造されてきたが、本発明においては、この裏割れ19を積極的に利用するようにしたことが大きな特色である。 Conventionally, the back crack 19 is considered to be a scratch on the wood, and the plate material 11 such as plywood has been manufactured so as to hide it. However, in the present invention, the back crack 19 is actively used. This is a big feature.

第2工程:得られた単板14の木表18に補強用シート21を貼る(図2(C)参照)。補強用シート21としては、破れ難い紙が最も適するが、布やガーゼ等の織布、或いは不織布、合成樹脂製シートなどであってもよく、他の木材であってもよい。また、補強用シート21を貼る方が次工程以降の加工が容易ではあるが、補強用シート21を貼らずに実施することもできる。 2nd process: The sheet | seat 21 for reinforcement is affixed on the wood surface 18 of the obtained veneer 14 (refer FIG.2 (C)). As the reinforcing sheet 21, paper that is difficult to tear is most suitable, but it may be a woven fabric such as cloth or gauze, a non-woven fabric, a synthetic resin sheet, or other wood. Moreover, although the direction which sticks the reinforcement sheet | seat 21 is easy for the process after the following process, it can also implement without sticking the reinforcement sheet | seat 21. FIG.

このようにして得られた単板14は、乾燥させて含水率を整えておくことが望ましい。乾燥に際しては、高温乾燥を行なうと木材13中の有効成分が蒸散するおそれがあるため、自然乾燥を主として行なうことが望ましい。より望ましくは、天日乾燥後に、太陽熱除湿乾燥機によって、含水率を整えるようにする。 The veneer 14 thus obtained is desirably dried to adjust the moisture content. When drying, high-temperature drying may cause the active ingredients in the wood 13 to evaporate, so it is desirable to perform natural drying mainly. More preferably, the moisture content is adjusted by a solar heat dehumidifying dryer after sun drying.

第3工程:単板14を一定幅に細くリボン状に裁断してリボン状板20に加工する。その際、図3に示すように、前の工程によって得られた長尺状の単板14の長手方向に沿って、裁断する。言い換えると、裏割れ19と交差する方向(木材13の繊維と交差する方向)に細長く裁断するものであり、リボン状板20には、その横方向に伸びる裏割れ19が、長手方向に多数形成されることになる。 Third step: The veneer 14 is cut into a ribbon shape with a certain width and processed into a ribbon plate 20. In that case, as shown in FIG. 3, it cuts along the longitudinal direction of the elongate single board 14 obtained by the previous process. In other words, it is cut into a thin shape in the direction intersecting with the back crack 19 (direction intersecting with the fibers of the wood 13), and the ribbon-shaped plate 20 is formed with a large number of back cracks 19 extending in the lateral direction in the longitudinal direction. Will be.

第4工程:図3によって得られたリボン状板20を、縦横に折り込んで、本発明に係る板材11が形成される。その際、裏割れ19の有る木裏17側を前にしてリボン状板20同士を前後に交差させて、上下に編み込んで板状にする。これによって、前面22に現れる各リボン状板20の木裏17が凸状に反るため、平板状の状態から、裏割れ19がさらに大きく開くようになる(図4参照)。特に、縦と横との双方のリボン状板20が、その長手方向と交差する方向に伸びる裏割れ19を備えたものとした場合には、前面の全体に、開いた裏割れ19が現れることになり、裏割れ19を通じた蒸散や通気が極めて促進される。 4th process: The ribbon-shaped board 20 obtained by FIG. 3 is folded vertically and horizontally, and the board | plate material 11 which concerns on this invention is formed. At this time, the ribbon-like plates 20 are crossed back and forth with the back 17 side with the crack 19 in front, and are knitted up and down to form a plate shape. As a result, the wood back 17 of each ribbon-like plate 20 appearing on the front surface 22 is warped in a convex shape, so that the back crack 19 opens further from the flat plate state (see FIG. 4). In particular, when both the vertical and horizontal ribbon-like plates 20 are provided with a back crack 19 extending in a direction crossing the longitudinal direction, an open back crack 19 appears on the entire front surface. Thus, transpiration and ventilation through the back crack 19 are greatly promoted.

第5工程:前工程にて織りこんだ裏割れ19の4辺を切り揃えて木質又は木質以外の枠体15にはめて固定することにより、図1に示す板材11が完成する。 Fifth step: The plate material 11 shown in FIG. 1 is completed by cutting and aligning the four sides of the back crack 19 woven in the previous step and fitting it onto a wooden or non-woody frame 15.

なお、本発明は種々変更して実施することができ、例えば、図5に示すように、各リボン状板20が斜め方向に伸びるように配置してもよい。また、図6に示すように、織り込むリボン状板20の幅を異なるようにしてもよい。さらに図示は省略するが、縦方向には本発明のリボン状板20を用いて、横方向には他の板材や合成樹脂製テープ等を用いることもできる。また、後面側に凹凸を有する板材を配置し、その凹凸上にリボン状板20や或いは裁断前の単板14を貼り付けて、裏割れ19が開くようにリボン状板20や単板14を反らせて配置してもよい。
原料となる木材13は、スギに限らず、ヒノキ、マツ、マキ等の国内産木材であってもよく、アカシア、ラワン等の外材であってもよい。
The present invention can be implemented with various modifications. For example, as shown in FIG. 5, the ribbon-like plates 20 may be arranged to extend in an oblique direction. Further, as shown in FIG. 6, the width of the ribbon-like plate 20 to be woven may be different. Furthermore, although illustration is omitted, the ribbon-like plate 20 of the present invention can be used in the vertical direction, and another plate material, a synthetic resin tape, or the like can be used in the horizontal direction. Further, a plate material having unevenness is arranged on the rear surface side, and the ribbon-like plate 20 or the single plate 14 before cutting is attached on the unevenness, and the ribbon-like plate 20 and the single plate 14 are attached so that the back crack 19 is opened. You may arrange | position by curving.
The wood 13 as a raw material is not limited to cedar, but may be domestic wood such as hinoki, pine, or maki, or may be an external material such as acacia or lawan.

以上、実施の形態に係る板材11にあっては、単板14、特にロータリー単板の木裏17を、板材11の前面の少なくとも一部に配置して、裏割れ19の積極的に活用するものである。特に、裏割れ19を開いた状態に配置することによって、木材13の木質の露出面積が大ききくなり、吸放湿性や内部分泌成分の蒸散が促進され、スギ等の健康や環境完全に効果のある木材13の効用をより有効に発揮させることができる。 As described above, in the plate member 11 according to the embodiment, the veneer 14, particularly the wooden back 17 of the rotary veneer, is disposed on at least a part of the front surface of the plate member 11 to actively utilize the back crack 19. Is. In particular, by arranging the crack 19 in an open state, the exposed area of the wood of the wood 13 is increased, moisture absorption and release of endocrine components are promoted, and health and environment such as cedar are completely effective. The utility of a certain wood 13 can be exhibited more effectively.

また、単板14には裏割れ19があり、これを利用したリボン状板20にはその長手方向と交わる方向に裏割れ19が伸びるように配置されるため、複数の裏割れ19を交互に前面側に出るようにした交互積層が容易である。
また、単板14の製造には、ロータリーレースを用いることができるが、裏割れが発生する加工装置であればよく、ロータリーレースに限定するものではない。また、種々のロータリーレースが市場には提供されているが、特に高性能、高価格なものでなくとも充分に利用可能であり、既存の設備をそのまま利用したり、安価な装置を利用するも可能であるため、コストの削減が可能である。
Further, the single plate 14 has a back crack 19, and the ribbon-shaped plate 20 using this is arranged so that the back crack 19 extends in a direction intersecting with the longitudinal direction thereof. It is easy to stack alternately so as to come out on the front side.
In addition, a rotary lace can be used for manufacturing the veneer 14, but any processing device that generates a back crack may be used, and the invention is not limited to the rotary lace. Various rotary races are available on the market, but they can be used even if they are not particularly high performance and expensive, and existing equipment can be used as they are, or inexpensive equipment can be used. Because it is possible, the cost can be reduced.

また、製造工程中又は板材11の完成後に、裏割れ19を利用して坊火剤、防腐剤などの薬剤注入が容易になる。これによって、例えば、不燃内装材として板材11を活用することもできる。 Further, during the manufacturing process or after the plate member 11 is completed, the back crack 19 is used to facilitate injection of chemicals such as a fire retardant and a preservative. Thereby, for example, the plate material 11 can also be used as an incombustible interior material.

また、単板14の厚さとリボン状板20の幅を変えたり、色違いや材質違いの裏割れ19や、さらに木材以外の素材を組み合わせることで、様々なデザインのものを提供することができる。また、一部のリボン状板20を表裏反対にして用いることもでき、その際、前面側となる補強用シート21に種々の色彩や模様を施すこともでき、より多様なデザインを演出できるが、その場合にあっても、開いた裏割れ19を少なくとも一部に含むため、木材13の性質を有効に活用することができる。 Various designs can be provided by changing the thickness of the single plate 14 and the width of the ribbon-like plate 20, combining the back cracks 19 of different colors or different materials, and materials other than wood. . Also, some ribbon-like plates 20 can be used upside down, and in that case, various colors and patterns can be applied to the reinforcing sheet 21 on the front side, which can produce more diverse designs. Even in that case, since the open back crack 19 is included in at least a part, the properties of the wood 13 can be effectively utilized.

合板の場合には、石油化学系接着剤の使用が実際上は避けられないが、この板材11にあっては、石油化学系接着剤の使用は必須ではない。よって、同接着剤を用いずに実施した場合には、脱石油化学を実現することができ、低コストで健康と環境に配慮した製品とすることもできる。 In the case of plywood, the use of a petrochemical adhesive is unavoidable in practice, but the use of a petrochemical adhesive is not essential for this plate material 11. Therefore, when it is carried out without using the adhesive, it is possible to realize de-petrochemicals, and it is possible to produce a product that is low-cost and considers health and the environment.

木材乾燥の方法は適宜変更して実施することができるが、原則として太陽熱等の自然エネルギーを直接利用することが可能である。特に、単板14の乾燥は、木材が薄く裏割れ19もあり早く乾燥するため、低コストで環境に負荷をかけないものづくりを実現させることができる。
また、リボン状板20を直交させる他、斜めに織り込むことも可能であり、様々な曲げ加工デザインを実現することができる。
The method of drying wood can be changed as appropriate, but in principle, natural energy such as solar heat can be used directly. In particular, since the veneer 14 is dried quickly because the wood is thin and there are cracks 19, it is possible to realize manufacturing at a low cost and not burdening the environment.
In addition to making the ribbon-shaped plate 20 orthogonal, it is possible to weave it diagonally, and various bending designs can be realized.

また、ロータリー単板を原料とし、薄刃のカッターで裁断してリボン状板20を製作することで、鋸屑と鉋屑が出ないため、製品歩留まりが高く、低コストと廃材処理費用の削減を図ることができる。 In addition, by producing a ribbon-shaped plate 20 by using a rotary veneer as a raw material and cutting with a thin blade cutter, sawdust and sawdust are not produced, so that the product yield is high, and low costs and waste processing costs are reduced. Can do.

また、小さな寸法のパネル用としては、品質の低い原木 (曲がり木など)を利用することもできる。木表18側に貼った補強用シート21を前面にすることで、色揃えをしたり、様々な色を使うことで様々な前面デザインを演出できるが、木裏17側の吸放湿性や分泌成分放散は維持することができる。 In addition, low-quality logs (such as bent trees) can be used for small-sized panels. By using the reinforcing sheet 21 on the front side of the wood surface 18 as the front, you can produce various front designs by aligning colors and using various colors. Component emissions can be maintained.

本発明に係る板材11は、上記のように、種々の特徴を備えたものとして種々変更して実施することができる。パネル状の板材11の用途としては、健康木質内装建材(壁面材、天井材、額縁など)として住宅や大型建築物に用いることができる。また、健康木質間仕切りパネルとして、事務所や工場などにも用いることができる。さらに、家具用材(椅子の底や背中当て、本箱などの種々の収納家具等々)にも用いることができる。 As described above, the plate material 11 according to the present invention can be implemented with various modifications as having various characteristics. As a use of the panel-shaped board | plate material 11, it can use for a house or a large-sized building as a healthy wooden interior building material (a wall surface material, a ceiling material, a frame, etc.). It can also be used in offices and factories as a healthy wood partition panel. Furthermore, it can also be used for furniture materials (such as various storage furniture such as chair bottoms, backrests, bookcases, etc.).

11 板材
12 刃物
13 木材
14 単板
15 枠体
16 開放面
17 木裏
18 木表
19 裏割れ
20 リボン状板
21 補強用シート
DESCRIPTION OF SYMBOLS 11 Board | plate material 12 Cutlery 13 Wood 14 Single board 15 Frame 16 Open surface 17 Wood back 18 Wood surface 19 Back crack 20 Ribbon-shaped board 21 Reinforcing sheet

Claims (7)

木材の単板を加工した板材において、
前記板材の前面の少なくとも一部は、前記単板の木裏の裏割れが現れており、
前記単板の少なくとも一部は、前記裏割れが開く方向に反らせた状態に配置されることにより、前記裏割れから前記木材の内外の成分の移動が促されることを特徴とする板材。
In the plate material processed from a single veneer of wood,
At least a part of the front surface of the plate material has a crack in the back of the veneer,
At least a part of the veneer is arranged in a state of being warped in the direction in which the back crack opens, whereby the movement of components inside and outside the wood is promoted from the back crack.
前記単板はロータリー単板であり、
前記ロータリー単板を前記裏割れと交わる方向に細幅に切断したリボン状板を備え、
前記リボン状板は、前記裏割れが多数本、前記リボン状板の長手方向に形成されたものであり、
前記木裏が凸状に反るように、前記リボン状板が厚み方向に曲げられて配置されていることを特徴とする請求項1記載の板材。
The veneer is a rotary veneer,
A ribbon-like plate that is cut into a narrow width in the direction intersecting the back crack with the rotary single plate,
The ribbon-shaped plate has a large number of back cracks formed in the longitudinal direction of the ribbon-shaped plate,
2. The plate material according to claim 1, wherein the ribbon-like plate is arranged so as to be bent in a thickness direction so that the tree back is warped in a convex shape.
複数枚の前記リボン状板が、前記木裏を前にした状態で前後に互いに交差させて配置されたものであり、
前側に位置する前記リボン状板の木裏が凸状に反らせた状態に配置されたものであることを特徴とする請求項2記載の板材。
A plurality of the ribbon-like plates are arranged so as to cross each other in the front-back direction with the tree back facing forward,
3. The plate material according to claim 2, wherein the back of the ribbon-like plate located on the front side is arranged in a convexly bent state.
前記リボン状板は木表に補強用シートが貼り付けられたものであることを特徴とする請求項2又は3記載の板材。 4. The plate material according to claim 2, wherein the ribbon-like plate is obtained by attaching a reinforcing sheet to a wooden surface. 前記単板はスギ材の単板であり、前記裏割れが開く方向に反らせた状態に配置されることにより表面積が増加し、前記スギ材の内部のテルペン類の蒸散が促されると共に、前記裏割れを通じて外気とスギ材内部との間の水分の移動が促されることを特徴とする請求項1〜4の何れかに記載の板材。 The veneer is a veneer veneer, and the surface area is increased by arranging the veneer to be bent in the opening direction of the back crack, and the terpenes inside the cedar vapour are promoted to evaporate. The board | plate material in any one of Claims 1-4 with which the movement of the water | moisture content between outside air and a cedar material inside is promoted through a crack. 木裏に裏割れが現れたロータリー単板を、前記裏割れと交わる方向に細幅に切断したリボン状板であって、前記リボン状板は、前記裏割れが多数本、前記リボン状板の長手方向に形成されたものであり、
前記木裏が凸状に反るように、厚み方向に曲げて配置できるようにしたリボン状板。
It is a ribbon-like plate obtained by cutting a rotary single plate having a crack in the back of the tree into a narrow width in a direction crossing the crack, and the ribbon-like plate has a large number of the cracks in the ribbon-like plate. Formed in the longitudinal direction,
A ribbon-shaped plate that can be bent and arranged in the thickness direction so that the tree back warps in a convex shape.
木材の単板を加工した板材の製造方法において、
前記単板は、その木裏に裏割れが現れたものであり、
前記単板を前記裏割れの伸びる方向と交わる方向に細幅に切断することによってリボン状板を製作する工程と、
前記木裏が凸状に反るように、前記リボン状板の少なくとも一部を厚み方向に曲げることによって、前記裏割れが開いた状態になるように板材の前面に配置する工程を含むことを特徴とする板材の製造方法。
In the manufacturing method of the board material which processed the single board of wood,
The veneer is one in which a crack appears on the back of the tree,
Producing a ribbon-like plate by cutting the single plate into a narrow width in a direction intersecting with the direction in which the back crack extends;
Including bending the at least part of the ribbon-shaped plate in the thickness direction so that the back of the tree warps in a convex shape so that the back crack is in an open state. The manufacturing method of the board | plate material characterized.
JP2012269277A 2012-12-10 2012-12-10 Plate utilizing rear crack and production method thereof Pending JP2014113748A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018078556A1 (en) * 2016-10-28 2018-05-03 Stora Enso Oyj Method of making a laminated wood product
JP2020179613A (en) * 2019-04-26 2020-11-05 パナソニックIpマネジメント株式会社 Woody building material

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018078556A1 (en) * 2016-10-28 2018-05-03 Stora Enso Oyj Method of making a laminated wood product
US10843371B2 (en) 2016-10-28 2020-11-24 Stora Enso Oyj Method of making a laminated wood product
US11383403B2 (en) 2016-10-28 2022-07-12 Stora Enso Oyj Method of making a laminated wood product
JP2020179613A (en) * 2019-04-26 2020-11-05 パナソニックIpマネジメント株式会社 Woody building material

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