JPH0516295U - Laminate - Google Patents

Laminate

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Publication number
JPH0516295U
JPH0516295U JP8916491U JP8916491U JPH0516295U JP H0516295 U JPH0516295 U JP H0516295U JP 8916491 U JP8916491 U JP 8916491U JP 8916491 U JP8916491 U JP 8916491U JP H0516295 U JPH0516295 U JP H0516295U
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JP
Japan
Prior art keywords
wood
layer
laminated
veneer
parallel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP8916491U
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Japanese (ja)
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JP2513708Y2 (en
Inventor
星一 渡辺
Original Assignee
株式会社ノダ
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Priority to JP1991089164U priority Critical patent/JP2513708Y2/en
Publication of JPH0516295U publication Critical patent/JPH0516295U/en
Application granted granted Critical
Publication of JP2513708Y2 publication Critical patent/JP2513708Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

(57)【要約】 【構成】マッチ状の木削片を用いた木削片層2を芯と
し、その表裏面に木質単板層1,3が積層一体化された
積層板。 【効果】本考案による積層板は、芯材として木削片層2
の工業材料を使用しているので、板厚および表面平滑性
が共に均質な材料であり、得られる積層板の表面性が優
れている。また、これら芯材として用いる木削片層2
は、単板として使用できない欠点のある原木を小さく破
砕したものを用いて得られるものであるため、資源の有
効利用となり自然破壊の防止に役立つことができる。ま
た、表裏面の木質単板層1,3の繊維方向と、その内側
に積層する、木削片層2の木削片の配向方向が平行とな
らないように積層することで、吸放湿による収縮膨張が
隣接する層間で抑制し合い著しく小さくなり寸法安定性
に優れた性質を有する積層板となる。さらに、木質単板
層1,3と木削片層2の繊維方向が平行とならないよう
に積層することにより、機械的強度の向上も図られるも
のである。
(57) [Summary] [Structure] A laminated board in which a wood chip layer 2 made of matched wood chips is used as a core, and wood veneer layers 1 and 3 are laminated and integrated on the front and back surfaces thereof. [Effect] The laminated board according to the present invention has a wood cutting layer 2 as a core material.
Since the industrial material of No. 1 is used, the plate thickness and the surface smoothness are both uniform, and the surface properties of the obtained laminated plate are excellent. Further, the wood scrap layer 2 used as the core material
Can be obtained by crushing a small piece of raw wood, which has a drawback that cannot be used as a veneer, to effectively use resources and prevent natural destruction. In addition, by stacking so that the fiber directions of the wood veneer layers 1 and 3 on the front and back surfaces and the wood cutting piece layer 2 to be laminated inside thereof are not parallel to each other, moisture absorption and desorption Shrinkage and expansion are suppressed between the adjacent layers and become extremely small, resulting in a laminated plate having excellent dimensional stability. Further, by laminating the wood veneer layers 1 and 3 and the wood shaving layer 2 so that the fiber directions are not parallel to each other, the mechanical strength can be improved.

Description

【考案の詳細な説明】[Detailed description of the device]

【0001】[0001]

【産業上の利用分野】[Industrial applications]

本考案は、構造材料を始め建築の表装、内装および家具等に使用される積層板 に関する。 TECHNICAL FIELD The present invention relates to a laminated plate used for structural materials, as well as for building exterior, interior and furniture.

【0002】[0002]

【従来技術】[Prior art]

積層板は、単板をその繊維方向を互いに直交にさせて積層接着した合板、単板 の繊維方向を同一方向に積層接着した平行合板(L.V.L.)などが知られて おり、挽材では得られない大きな寸法の板を多量に安定して供給することができ 、しかも寸法安定性にも優れているなど、現在の建築材料の一材料としてなくて はならないものである。 Laminated plates are known such as plywood in which veneers are laminated and bonded with their fiber directions orthogonal to each other, and parallel plywood (LVL) in which the fiber directions of veneers are laminated and bonded in the same direction. It is an indispensable part of today's building materials because it can stably supply large quantities of large-sized boards that cannot be obtained from sawn timber and has excellent dimensional stability.

【0003】[0003]

【考案が解決しようとする課題】[Problems to be solved by the device]

しかし、この合板は、天然木材を薄く剥ぎ取った単板を積層接着し製造するた め、天然資源の枯渇問題が世界的に大きく取り上げられ、原材料である原木を伐 採することが困難になると共に、原木の質が低下することによって、単板に使用 する良質の単板を多量に得ることが難しくなり、品質の良い合板を多量に市場に 供給することが困難となる。この問題は今後ますます深刻化することが予測され 、合板に代わる代替え品の提供が熱望されている。 However, since this plywood is manufactured by laminating and bonding veneers from which thin pieces of natural wood have been peeled off, the problem of depletion of natural resources has been widely taken up worldwide, making it difficult to cut down the raw material raw wood. At the same time, the quality of raw wood deteriorates, making it difficult to obtain a large amount of good-quality veneer used for veneer, and to supply a large amount of good-quality plywood to the market. This problem is expected to become more serious in the future, and there is a strong desire to provide an alternative to plywood.

【0004】[0004]

【課題を解決するための手段】[Means for Solving the Problems]

本考案は、合板の代替え品として使用できる新規な積層板を提供することを目 的として鋭意工夫の結果完成されたものである。 The present invention has been completed as a result of earnest efforts for the purpose of providing a novel laminated plate that can be used as a substitute for plywood.

【0005】 すなわち本考案は、図1に示すような構成であり、マッチ棒状の木削片を用い た木削片層2を芯とし、その表裏面に木質単板層1,3が積層一体化されてなる 積層板である。That is, the present invention has a structure as shown in FIG. 1, and has a wood cutting layer 2 made of match stick-shaped wood cutting as a core, and wood veneer layers 1 and 3 are laminated and integrated on the front and back surfaces thereof. It is a laminated plate that is made into.

【0006】 積層板の芯となる木削片層2は、例えば、原木を切削して単板を得る際に廃材 として出される単板チップのような、厚さおよび幅が5mm以下で、長さが10 mm以上の繊維方向に細長いマッチ棒状の木削片(一般にストランドとも称され る。)を用いる。この木削片を常法により圧締成型することにより木削片層が形 成される。この木削片層は、その製造過程において木削片を落下堆積させて木削 片のマッチを作る際に、木削片の繊維方向を一定方向に配向させたものをプレス 成形して得られたものが好ましい。一定の配向を持たせることにより、木質単板 に似た性質を持つものとなり、木削片の繊維方向に平行方向の曲げ強度が非常に 優れた機械的強度を有する。The wood chip layer 2 that is the core of the laminated plate has a thickness and width of 5 mm or less, such as a veneer chip that is taken out as a waste material when cutting a raw wood to obtain a veneer. A wood chip (generally referred to as a strand) having a length of 10 mm or more and elongated in the fiber direction is used. A wood shaving layer is formed by press-molding this wood shaving according to a conventional method. This wood shavings layer is obtained by press-molding the wood shavings in which the fiber direction is oriented in a certain direction when the wood shavings are dropped and deposited in the manufacturing process to form a wood shaving match. Those that are preferred. By having a certain orientation, it has properties similar to wood veneer, and has excellent mechanical strength in bending strength in the direction parallel to the fiber direction of wood shavings.

【0007】 また表裏面に積層される木質単板層1,3としては広葉樹単板、針葉樹単板を 用いることができる。表面側木質単板層と裏面側木質単板層の繊維方向は一般に 合板を構成する際の表裏単板と同様に互いにその繊維方向が平行となるように構 成される。As the wood veneer layers 1 and 3 laminated on the front and back surfaces, a hardwood veneer and a softwood veneer can be used. The fiber directions of the front-side wood veneer layer and the back-side wood veneer layer are generally configured so that the fiber directions thereof are parallel to each other, as in the case of forming the plywood.

【0008】 さらに一定の配向方向を有する木削片層と木質単板層を積層する際に、表裏面 に積層される木質単板層1,3の繊維方向とこの木削片層2の配向方向とが平行 方向にならないように積層する。好ましくは、直交するように積層する。表裏面 に積層する木質単板層は、吸放湿することにより、単板の繊維方向に平行方向の 収縮膨張に比べ、繊維方向に垂直方向の収縮膨張が5から20倍と大きく、繊維 方向に対し平行方向と垂直方向との変化率が大きく異なる。Further, when laminating a wood shaving layer and a wood veneer layer having a certain orientation direction, the fiber directions of the wood veneer layers 1, 3 laminated on the front and back surfaces and the orientation of the wood shaving layer 2 Stack so that the directions are not parallel to each other. Preferably, they are laminated so as to be orthogonal to each other. By absorbing and releasing moisture, the wood veneer layers laminated on the front and back sides have a contraction and expansion in the direction perpendicular to the fiber direction that is 5 to 20 times greater than the contraction and expansion in the direction parallel to the fiber direction of the veneer. On the other hand, the rate of change between the parallel direction and the vertical direction is significantly different.

【0009】 これに対し、木削片層の木削片の繊維方向を一定方向に配向させることにより 木質単板に近い性質となり、木削片層2の吸放湿による収縮膨張も、繊維方向に 平行方向の収縮膨張に対し、繊維方向に垂直方向の収縮膨張が大きいため、これ ら木質単板層1,3および木削片層2単独では吸放湿による寸法変化が繊維方向 に対し垂直方向の収縮膨張が特に大きいものであるが、これら2層の木質単板層 1,3と木削片層2との繊維方向が平行とならないように積層することにより、 吸放湿により生ずる収縮膨張が隣接板材間でお互いに拘束し合い著しく抑制され る。On the other hand, by orienting the fiber direction of the wood shavings of the wood shavings layer in a fixed direction, the wood shavings layer has a property close to that of a wood veneer, and the wood shavings layer 2 shrinks and expands due to moisture absorption and desorption. Since the contraction and expansion in the direction perpendicular to the fiber direction is greater than the contraction and expansion in the direction parallel to, the dimensional changes due to moisture absorption and desorption in these wood veneer layers 1 and 3 and wood shaving layer 2 alone are perpendicular to the fiber direction. Although the shrinkage in the direction is particularly large, the shrinkage caused by moisture absorption and desorption by stacking these two wood veneer layers 1 and 3 and the wood shaving layer 2 so that the fiber directions are not parallel. Expansion is constrained between adjacent plate materials and is significantly suppressed.

【0010】 また、機械的強度の面においても、木質単板の繊維方向に平行方向に曲げ強度 が強いという性質と、木削片層2の木削片の配向方向に平行方向に曲げ強度が強 いという性質が、繊維方向を平行とならないように積層することにより、得られ る積層板の長さ方向および幅方向共に優れた機械強度を有するものとなる。この 収縮膨張の抑制効果はおよび機械的強度の向上は、木質単板の繊維方向と木削片 の配向方向を直交させて積層した状態が特に優れたものとなり、収縮膨張に起因 する反りやねじれを防止することができ好ましい。Also in terms of mechanical strength, the bending strength is strong in the direction parallel to the fiber direction of the wood veneer, and the bending strength is parallel to the orientation direction of the wood chips of the wood chip layer 2. The property of being strong makes it possible to obtain a laminated plate having excellent mechanical strength in both the length direction and the width direction by laminating the fibers so that the fiber directions are not parallel to each other. The effect of suppressing shrinkage / expansion and the improvement of mechanical strength are particularly excellent when the fiber direction of the wood veneer and the orientation direction of the wood shavings are laminated at right angles, and warpage or twisting due to shrinkage / expansion occurs. Is preferable because it can prevent

【0011】 本考案の積層板は、例えば、予め製造した木質木質単板層1,3および木削片 層2を一般に合成樹脂系接着剤を介して積層し、常法に従い熱圧プレスすること により得られる。あるいは熱可塑性または熱硬化性接着剤の塗布されたマッチ状 の木削片を落下堆積したものを仮圧締して得た木削片マットを、木質単板層と木 質単板層の間に配置し、一括して熱圧プレスすることにより木削片層2を芯とし てその表裏に木質単板層1,3が積層一体化された積層板を得ることができる。The laminated board of the present invention comprises, for example, laminating preliminarily manufactured wood veneer veneer layers 1 and 3 and wood shaving layer 2 via a synthetic resin adhesive, and hot-pressing in accordance with a conventional method. Is obtained by Alternatively, a wood shaving mat obtained by temporarily pressing a match-like wood shaving that has been coated with a thermoplastic or thermosetting adhesive is deposited between the wood veneer layer and the wood veneer layer. Then, by hot-pressing collectively, it is possible to obtain a laminated plate in which the wood shaving layer 2 is the core and the wood veneer layers 1 and 3 are laminated and integrated on the front and back.

【0012】 このようにして得られた積層板の表面に必要により化粧シートを接着する。接 着する化粧シートとしては、例えば、厚み0.2−3mm程度の天然木材を切削 して得られる天然薄単板、20−40g/mの化粧紙、32−500g/m の不織布50g/mのパーチメント紙等の柄模様印刷や単色の塗装が施された ものを用いることができる。あるいは、化粧シート接着後、上塗り工程を設ける こともできる。化粧シートの接着は、熱可塑性接着剤例えば酢酸ビニル樹脂等に 耐水性向上のために熱硬化性化粧樹脂または尿素粉末等を混入したものを用いる ことができる。If necessary, a decorative sheet is adhered to the surface of the thus obtained laminated plate. As the decorative sheet to be adhered, for example, natural thin veneer obtained by cutting natural wood with a thickness of about 0.2-3 mm, 20-40 g / mTwoDecorative paper, 32-500 g / mTwo  Non-woven fabric 50g / mTwoIt is possible to use a parchment paper or the like with a patterned print or a single color coating. Alternatively, an overcoating step may be provided after the decorative sheet is bonded. For the adhesion of the decorative sheet, a thermoplastic adhesive such as vinyl acetate resin mixed with a thermosetting decorative resin or urea powder for improving water resistance can be used.

【0013】[0013]

【考案の効果】[Effect of the device]

本考案による積層板は、芯材として木削片層2の工業材料を使用しているので 、板厚および表面平滑性が共に均質な材料であり、得られる積層板の表面性が優 れている。また、これら芯材として用いる木削片層2は、単板として使用できな い欠点のある原木を小さく破砕したものを用いて得られるものであるため、資源 の有効利用となり自然破壊の防止に役立つことができる。 Since the laminated plate according to the present invention uses the industrial material of the wood shaving layer 2 as the core material, it has a uniform plate thickness and surface smoothness, and the obtained laminated plate has excellent surface properties. There is. Further, the wood shaving layer 2 used as the core material is obtained by crushing a small piece of raw wood, which has a drawback that it cannot be used as a veneer, and is an effective use of resources to prevent natural destruction. Can be helpful.

【0014】 また、表裏面の木質単板層1,3の繊維方向と、その内側に積層する、木削片 層2の木削片の配向方向が平行とならないように積層することで、吸放湿による 収縮膨張が隣接する層間で抑制し合い著しく小さくなり寸法安定性に優れた性質 を有する積層板となる。Further, by stacking so that the fiber directions of the front and back wood veneer layers 1 and 3 are not parallel to the orientation directions of the wood chip pieces 2 to be laminated inside the wood veneer layers 1, 3 Shrinkage and expansion due to moisture release are suppressed between adjacent layers and become extremely small, resulting in a laminate having excellent dimensional stability.

【0015】 さらに、木質単板層1,3と木削片層2の繊維方向が平行とならないように積 層することにより、機械的強度の向上も図られるものである。Further, by stacking the wood veneer layers 1 and 3 and the wood shaving layer 2 so that the fiber directions are not parallel to each other, the mechanical strength can be improved.

【図面の簡単な説明】[Brief description of drawings]

【図1】 3層構造の場合の積層板断面図、FIG. 1 is a sectional view of a laminated plate having a three-layer structure,

【符号の説明】[Explanation of symbols]

1,3:木質単板層、2:木削片層。 1, 3: wood veneer layer, 2: wood shaving layer.

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】 マッチ状の木削片を用いた木削片層2を
芯とし、その表裏面に木質単板層1,3が積層一体化さ
れていることを特徴とする積層板。
1. A laminate comprising a wood shaving layer 2 made of matched wood shavings as a core, and wood veneer layers 1 and 3 being laminated and integrated on the front and back surfaces thereof.
【請求項2】 木削片層2の木削片自体が一定方向に配
向されると共に、その配向方向が、木質単板層1,3の
繊維方向と平行方向とならないよう積層一体化されてな
る請求項1記載の積層板。
2. The wood shavings layer 2 is orientated in a certain direction, and the wood shavings are laminated and integrated so that the orientation direction is not parallel to the fiber direction of the wood veneer layers 1 and 3. The laminated plate according to claim 1, wherein
JP1991089164U 1991-08-07 1991-08-07 Laminate Expired - Lifetime JP2513708Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1991089164U JP2513708Y2 (en) 1991-08-07 1991-08-07 Laminate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1991089164U JP2513708Y2 (en) 1991-08-07 1991-08-07 Laminate

Publications (2)

Publication Number Publication Date
JPH0516295U true JPH0516295U (en) 1993-03-02
JP2513708Y2 JP2513708Y2 (en) 1996-10-09

Family

ID=13963178

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1991089164U Expired - Lifetime JP2513708Y2 (en) 1991-08-07 1991-08-07 Laminate

Country Status (1)

Country Link
JP (1) JP2513708Y2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5142776A (en) * 1974-10-09 1976-04-12 Eidai Co Ltd PAATEIKURUBOODOKOAGOBANNO RENZOKUSEIZOHO
JPS5365882U (en) * 1976-11-06 1978-06-02
JPS5435783U (en) * 1977-08-13 1979-03-08
JPS6072235U (en) * 1983-10-21 1985-05-21 吉田 稔 fire resistant composite wood

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5142776A (en) * 1974-10-09 1976-04-12 Eidai Co Ltd PAATEIKURUBOODOKOAGOBANNO RENZOKUSEIZOHO
JPS5365882U (en) * 1976-11-06 1978-06-02
JPS5435783U (en) * 1977-08-13 1979-03-08
JPS6072235U (en) * 1983-10-21 1985-05-21 吉田 稔 fire resistant composite wood

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Publication number Publication date
JP2513708Y2 (en) 1996-10-09

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