JP2000102909A - Production of wooden vessel using new die - Google Patents
Production of wooden vessel using new dieInfo
- Publication number
- JP2000102909A JP2000102909A JP29292898A JP29292898A JP2000102909A JP 2000102909 A JP2000102909 A JP 2000102909A JP 29292898 A JP29292898 A JP 29292898A JP 29292898 A JP29292898 A JP 29292898A JP 2000102909 A JP2000102909 A JP 2000102909A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- tray
- container
- wooden
- clearance
- 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.)
- Pending
Links
Landscapes
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、木製容器の製造技
術の分野に属し、特に、天然木を利用して各種トレー等
として用いられるのに好適な木製容器を製造する方法お
よびこの製造方法に使用される金型に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the field of wooden container manufacturing technology, and more particularly to a method for manufacturing a wooden container suitable for use as various trays using natural wood and a method for manufacturing the same. Regarding the mold used.
【０００２】[0002]
【従来の技術】天然木を適正に維持管理するためには間
引きを行うことが必要であり、それに伴い間伐材が産出
されるが、その用途は限られている。また、日本国内に
おけるスギ材を中心とした針葉樹林の備蓄量は年々増加
しているにもかかわらず、需要は低迷しているのが現状
である。一方、環境問題が叫ばれている昨今、産業廃棄
物など不燃物の処理に対する将来への不安が募りつつあ
り、スチロール製食品用トレー等の石油化学製品を原料
とした容器の使い捨てによる不燃ゴミの増加が問題にな
っている。そこで、スギなどの木材を容器として新規に
製品開発することができれば、焼却可能なゴミとして各
家庭でも処理でき、有害ガスの発生も起こさず、併せて
上記の天然木の有効利用の問題も解決するものとして期
待される。2. Description of the Related Art In order to properly maintain and manage natural trees, it is necessary to perform thinning, and thinnings are produced with the thinning, but their uses are limited. In addition, despite the increasing stockpile of coniferous forests centered on cedar wood in Japan, demand is currently stagnant. On the other hand, recently, concerns about environmental problems are being raised, and concerns about the future of the treatment of incombustibles such as industrial waste are increasing. The increase is a problem. Therefore, if a new product can be developed using wood such as cedar as a container, it can be treated at home as incinerated garbage, and no harmful gas will be generated. It is expected to do.
【０００３】木質の材料から成るトレー状等の容器は従
来からも幾つか見受けられるが、薄板状の本体に側壁部
を別途止着したり、あるいは、薄板本体の一部に設けた
切り込み部を折り曲げて側壁部を形成する等の手段によ
り、容器の形状にしたものが多い。Some tray-shaped containers made of a woody material have been found in the past, but a side wall is separately fixed to the thin plate-shaped main body, or a cutout provided in a part of the thin plate main body is provided. In many cases, the container is formed into a shape by means such as bending to form a side wall.
【０００４】最近、金型を用い熱と圧力を加えて木質材
料から一体的に成形、製造されたトレー状容器も見られ
るようになった。しかしながら、強度と伸縮性（柔軟
性）に欠け表面の平滑性が不充分な木質材料を熱圧成形
すると、成形条件を注意深く設定しても製品に割れが発
生するのを回避することはできない。この現象を軽減す
るために、金型と材料との間に滑りの良いセロハンやシ
リコンシートを挟み成形する方法も考えられるが、割れ
を完全になくすことはできず、さらに、逐次シートを挟
むため操作性の点で不利であるだけでなく、材料の間に
挟んだシートが包まれて良品率が低下する。木材の強度
を高めるために、木質薄板を接着剤で複数枚張り合わせ
た積層板を熱圧成形することも提示されているが、割れ
を本質的に解消することはできない。さらに、天然素材
として竹を用いたトレー状容器も見受けられるようにな
ったが、竹に比べて強度や加工性の低い木材を用いて実
用に供し得るようなトレー状容器を確実に一体成形でき
る技術は見当たらない。[0004] Recently, tray-like containers integrally molded and manufactured from wood material by applying heat and pressure using a mold have come to be seen. However, if a woody material lacking in strength and elasticity (flexibility) and having insufficient surface smoothness is hot-pressed, cracking of the product cannot be avoided even if the molding conditions are carefully set. In order to reduce this phenomenon, a method of sandwiching a cellophane or silicon sheet with good slip between the mold and the material is also conceivable, but it is not possible to completely eliminate cracks, and furthermore, to sandwich the sheet sequentially Not only is it disadvantageous in terms of operability, but the sheet sandwiched between the materials is wrapped and the yield rate is reduced. In order to increase the strength of wood, it has been proposed to hot-press a laminate made of a plurality of thin wooden boards bonded with an adhesive, but cracks cannot be essentially eliminated. Furthermore, tray-shaped containers using bamboo as a natural material have come to be found, but tray-shaped containers that can be put to practical use using wood with lower strength and workability than bamboo can be reliably molded integrally. Technology is missing.
【０００５】[0005]
【発明が解決しようとする課題】本発明の目的は、割れ
が発生せず、きわめて高い良品率で木質材料から熱圧成
形よりトレー状木製容器を製造することのできる技術を
確立することにある。SUMMARY OF THE INVENTION An object of the present invention is to establish a technique capable of producing a tray-shaped wooden container from woody material by hot pressing at an extremely high yield without cracking. .
【０００６】[0006]
【課題を解決するための手段】本発明者は、木質材料の
熱圧成形に用いられるのに好適な新規な金型を案出し、
この金型を使用することにより上記の課題を解決できる
木製容器の新規な製造方法を導き出した。Means for Solving the Problems The present inventor has devised a novel mold suitable for being used for hot pressing of wood materials.
By using this mold, a new method for manufacturing a wooden container capable of solving the above-described problem has been derived.
【０００７】すなわち、本発明は、先ず、木質材料を熱
圧成形してトレー状の木製容器を製造するのに用いられ
る金型であって、（１）トレー状容器の被成形部位に応
じて金型のメス型とオス型との間のクリアランスに差が
設けられ、トレー状容器の底部周縁域に対応する部位の
クリアランスが最も大きく木質材料の厚みの１２０％〜
１８０％程度となっており、トレー状容器の底部中央域
に対応する部位のクリアランスが最も小さく木質材料の
厚みにほぼ等しくなっており、（２）トレー状容器の底
部中央域に対応する部位が底上げ形状を呈しており、さ
らに（３）木質材料と接触する表面がテフロン加工され
ていることを特徴とする金型を提供する。That is, the present invention relates to a mold used to manufacture a tray-shaped wooden container by hot-pressing a wooden material, and (1) a mold corresponding to a portion to be molded of the tray-shaped container. A clearance is provided between the female mold and the male mold of the mold, and the clearance at the portion corresponding to the bottom peripheral area of the tray-shaped container is the largest, and is 120% of the thickness of the wood material.
It is about 180%, and the clearance at the portion corresponding to the bottom central region of the tray-shaped container is the smallest and is almost equal to the thickness of the woody material. (2) The portion corresponding to the bottom central region of the tray-shaped container is The present invention provides a mold having a raised bottom shape, and (3) a Teflon-finished surface in contact with the woody material.
【０００８】さらに、本発明は、この金型を使用する方
法の発明であって、木材単板の片面または両面に接着剤
を塗布した後乾燥させて接着剤中の溶剤を除去する工
程、接着剤を塗布した面を介して繊維方向が互いに交差
するように少なくとも２枚の木材単板を重ね合わせて積
層板を作製する工程、該積層板を上記の金型を用いて熱
圧成形する工程を含むことを特徴とするトレー状木製容
器の製造方法を提供する。本発明のトレー状木製容器の
製造方法は、特に好ましい態様として、積層板を金型を
用いて熱圧成形する工程において、木製容器の所定の張
出縁幅よりも大きめに設定した余分の張出縁を裁断する
ことも行う。Further, the present invention relates to a method of using this mold, which comprises applying an adhesive to one or both surfaces of a single veneer wood and drying it to remove a solvent in the adhesive. Producing a laminate by laminating at least two single veneers such that the fiber directions intersect each other via the surface on which the agent is applied, and hot-pressing the laminate using the above-mentioned mold. And a method for producing a tray-shaped wooden container. As a particularly preferred embodiment, the method for manufacturing a tray-shaped wooden container of the present invention includes, in a step of hot-pressing a laminate using a mold, an extra tension set to be larger than a predetermined width of the overhanging edge of the wooden container. It also cuts the edge.
【０００９】[0009]
【発明の実施の形態】以下、本発明に従う金型および木
製容器の製造方法の各構成要素に沿って本発明の特徴を
詳述する。金型のクリアランス 木質材料を熱圧成形してトレー状木製容器を製造するの
に用いられる本発明の金型の第一の特徴は、トレー状容
器の被成形部位に応じて金型のメス型とオス型との間の
クリアランスに差が設けられていることにある。すなわ
ち、本発明の金型においては、トレー状容器の底部周縁
域に対応する部位のクリアランスが最も大きく木質材料
の厚みの１２０％〜１８０％程度となっており、また、
トレー状容器の底部中央域に対応する部位が最も小さく
木質材料の厚みにほぼ等しくなっている。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the features of the present invention will be described in detail along each component of the method for manufacturing a mold and a wooden container according to the present invention. The first feature of the mold clearance woody material by hot pressing molding die of the present invention used to prepare the tray-like wooden container, female die according to the molded part of the tray-like container The difference lies in the clearance between the male and male types. That is, in the mold of the present invention, the clearance at the portion corresponding to the bottom peripheral region of the tray-shaped container is the largest and is about 120% to 180% of the thickness of the woody material.
The portion corresponding to the bottom central region of the tray-shaped container is the smallest and is almost equal to the thickness of the wood material.
【００１０】図１は、この特徴を示すものであり、平断
面が矩形（四角形）のトレー状容器を製造するのに用い
る金型の平断面図（上）と側断面図（下）である。図に
示されるように、本発明の金型のクリアランス（金型の
オス型（Ａ）とメス型（Ｂ）を重ねたときの隙間）は、
トレー状容器の各被成形部位〔（１）底部中央域に対応
する部位；（２）底部周縁域に対応する部位；（３）側
壁部に対応する部位；（４）張出縁〕に応じて差が設け
られている。FIG. 1 shows this characteristic, and is a plan sectional view (top) and a side sectional view (bottom) of a mold used for manufacturing a tray-shaped container having a rectangular (quadrangle) plane section. . As shown in the figure, the clearance of the mold of the present invention (the gap when the male mold (A) and the female mold (B) of the mold overlap) is
According to each molded part of the tray-shaped container [(1) a part corresponding to the bottom central area; (2) a part corresponding to the bottom peripheral area; (3) a part corresponding to the side wall part; (4) the overhanging edge] Difference is provided.
【００１１】すなわち、（１）の底部中央域に対応する
部位のクリアランスは、金型に挿入される木質材料がそ
の厚みを保持して成形されるように該材料の厚みにほぼ
等しくし、一方、（２）の底部周縁域に対応する部位
は、後述するように木質材料が最も寄り集まるのでその
クリアランスを最も大きく該材料の厚みの１２０％〜１
８０％程度とする。（３）および（４）のクリアランス
は、（１）のクリアランスと（２）のクリアランスの間
の大きさを有していればよいが、（３）の側壁部に対応
する部位のクリアランスは（２）で集まった材料をあま
り引っ張らないように（１）よりも１割程度大きくする
のが一般的である。また、（４）のトレー状容器張出縁
に対応する部位のクリアランスは材料が畳まれる部分で
あるので（３）よりも幾分大きく、（３）のクリアラン
スの１割程度大きくするのが好ましい。例えば、厚みが
約0.９ｍｍ〜1.０ｍｍの木質材料からトレー状容器を製
造する場合の各部位に対応するクリアランスの大きさ
は、（１）が0.９ｍｍ、（２）が1.６ｍｍ、（３）が1.
１ｍｍ、（４）が1.２ｍｍである。以上のような金型を
用いると割れの発生が極めて少なく安定して高品質のト
レー状容器が製造できることが確認されている。この理
由は次のように理解される。That is, the clearance of the portion corresponding to the bottom central region in (1) is made substantially equal to the thickness of the wood material so that the wood material inserted into the mold is formed while maintaining its thickness. , (2), the portion corresponding to the bottom peripheral region has the largest clearance of the woody material as described later, so that the clearance is the largest, and is 120% to 1% of the thickness of the material.
It is about 80%. The clearances of (3) and (4) may have a size between the clearance of (1) and the clearance of (2), but the clearance of the portion corresponding to the side wall of (3) is ( In general, the material collected in 2) is made about 10% larger than that in (1) so as not to be pulled too much. In addition, the clearance at the portion corresponding to the overhanging edge of the tray-shaped container in (4) is a portion where the material is folded, so that it is somewhat larger than that in (3), and should be about 10% larger than the clearance in (3). preferable. For example, when a tray-shaped container is manufactured from a wooden material having a thickness of about 0.9 mm to 1.0 mm, the size of the clearance corresponding to each part is 0.9 mm in (1) and 1.6 mm in (2). , (3) is 1.
1 mm, and (4) is 1.2 mm. It has been confirmed that the use of the above-mentioned mold can produce a stable and high-quality tray-like container with extremely few cracks. The reason is understood as follows.
【００１２】従来の加圧成形ではクリアランスが均一で
あり、各被成形部位に同時にメス型とオス型が接触する
ため、（１）と（４）に引っ張り応力がかかり、割れが
発生するとともに、木質材料のしわの寄る位置が不規則
になり、得られる製品に割れを発生させる原因になって
いたものと考えられる。これに対して、本発明の金型に
おいては、クリアランスに上述したような差を設けるこ
とにより、木質材料のしわが（２）の１ヶ所に集められ
ながら、圧力が付加される順番が（１）→（３）→
（４）となり（１）と（４）の間にかかる引っ張り応力
が徐々に拡散されて割れの発生がなくなるものと考えら
れる。このように本発明の金型は、伸縮性のきわめて小
さい木材の特性を充分に考慮して割れが発生しないよう
にトレー状容器を加圧成形できるような形状を有してい
る。In the conventional pressure molding, the clearance is uniform, and the female and male molds come into contact with each molded part at the same time. Therefore, tensile stress is applied to (1) and (4), and cracks are generated. It is probable that the wrinkled position of the wood material became irregular, causing cracks in the resulting product. On the other hand, in the mold of the present invention, by providing the above-described difference in the clearance, the order in which the pressure is applied while the wrinkles of the wooden material are collected at one place of (2) is (1). ) → (3) →
(4) It is considered that the tensile stress applied between (1) and (4) is gradually diffused and cracks are eliminated. As described above, the mold of the present invention has such a shape that the tray-shaped container can be pressure-formed so that cracks do not occur, taking into account the characteristics of extremely low elasticity wood.
【００１３】さらに、クリアランスが均一な金型を用い
ると熱圧成形時に材料がパンク（破裂）してしまうよう
な場合もあったが、本発明の金型を用いるとそのような
現象は見られない。これはクリアランスに差を設けるこ
とにより、空気や熱による水蒸気の逃げ道が形成される
ためと理解される。Further, when a mold having a uniform clearance is used, the material may be punctured (ruptured) at the time of hot pressing, but such a phenomenon is observed when the mold of the present invention is used. Absent. It is understood that this is because, by providing a difference in clearance, an escape path for water vapor by air or heat is formed.
【００１４】底上げ形状 本発明の金型の第２の特徴は、トレー状容器の底部中央
域に対応する部位が、図１および図２の（１）で示され
るように***している、すなわち、底上げ形状を呈して
いることである。この底上げ部分の高さは、一般的に、
製造しようとするトレー状容器の深さの１／４〜１／６
にするのが好ましい。[0014] raised shape second feature of the mold of the present invention, portions corresponding to the bottom center area of the tray-like container, is raised as shown by (1) in FIG. 1 and FIG. 2, i.e. And a raised bottom shape. The height of this raised part is generally
1/4 to 1/6 of the depth of the tray container to be manufactured
It is preferred that
【００１５】本発明が対象とするようなトレー状木製容
器においては、加圧成形による製造から時間が経過する
と、木材の特性により元の平板に戻る力が働き（木材は
成形すると元の状態に戻ろうとする応力を蓄えてい
る）、当初の形状がくずれて所望の容器形状を保持でき
なくなることが多く、さらに、全体のボディ剛性も乏し
く、その分だけ材料を厚くしなければならないという問
題があった。本発明に従い、容器の底部中央域に対応す
る部位が底上げされた形状の金型を用いて熱圧成形を行
うと、得られるトレー状容器は、成形直後の形状を保持
することができ、また、ボディ剛性も増加し材料を薄く
することが可能となった。In the tray-shaped wooden container as the object of the present invention, after a lapse of time from the production by pressure molding, a force returns to the original flat plate due to the characteristics of the wood. (Restores stress to return), the initial shape is often lost and the desired container shape cannot be maintained, and furthermore, the overall body rigidity is poor and the material must be made thicker by that amount. there were. According to the present invention, when hot-press molding is performed using a mold having a shape in which a portion corresponding to the bottom central region of the container is raised, the obtained tray-shaped container can retain the shape immediately after molding, Also, the body rigidity was increased, and the material could be made thinner.
【００１６】テフロン加工 木質材料を熱圧成形してトレー状木製容器を製造するの
に用いる本発明の金型の第３の特徴は、木質材料と接触
する表面がテフロン加工されていることである。木質材
料の成形には、ステンレススチールのような金属から成
る金型（または木型）が一般に用いられているが、材料
を単に折り曲げるような２次元成形の場合はともかくと
して、本発明の対象とするトレー状容器を製造する場合
のような３次元成形においては、このような金型を用い
ると製品に割れが発生するのを避けることはできない。A third feature of the mold of the present invention used for producing a tray-shaped wooden container by hot-pressing a Teflon-coated wood material is that the surface in contact with the wood material is Teflon-coated. . A mold (or a wooden mold) made of a metal such as stainless steel is generally used for molding a wooden material. However, in the case of two-dimensional molding in which a material is simply bent, the object of the present invention is not limited. In the case of three-dimensional molding, such as in the case of manufacturing a tray-shaped container, the use of such a mold cannot avoid the occurrence of cracks in the product.
【００１７】本発明は、金型の表面をテフロン加工する
ことにより成形後のトレー状木製容器の割れが激減する
ことを見出した。これは、加圧成形に際して木質材料と
金型の接触による摩擦抵抗が少なくなったためと考えら
れる。同様の効果は金型の表面を金属メッキすることに
よっても可能であるが、割れの発生はテフロン加工の方
が少ないことも見出している。According to the present invention, it has been found that cracking of the tray-shaped wooden container after molding is drastically reduced by subjecting the surface of the mold to Teflon processing. This is probably because the frictional resistance due to the contact between the woody material and the mold during pressure molding was reduced. A similar effect can be achieved by plating the surface of the mold with metal, but it has also been found that the occurrence of cracks is smaller with Teflon processing.
【００１８】金型の表面をテフロン加工すると、さら
に、木製表面が滑らかに仕上げられる、成型品の離型が
容易となり取り出し易く掃除がし易い、また、金型の磨
耗を防ぐことができ表面の塗装が剥げても再塗装し易い
等の利点もある。If the surface of the mold is processed with Teflon, the wooden surface can be smoothed further, the molded product can be easily released from the mold and can be easily taken out and cleaned, and wear of the mold can be prevented and the surface of the mold can be prevented. There are also advantages such as easy repainting even if the paint comes off.
【００１９】なお、本発明の金型において採用されるテ
フロン加工とは特殊なものではなく、フライパンやナベ
などに実施されているのと同様のものである。よく知ら
れているように、テフロンとは一般式（−ＣＦ2 −ＣＦ
2 −）n で表されるポリテトラフルオロエチレンのデュ
ポン社の商品名であり、このポリテトラフルオロエチレ
ン（ｎが６〜８のものが好ましい）を金型を構成する金
属（例えばステンレススチール）の表面に慣用的な手法
に従い加熱照射することによりテフロン加工された金型
が得られる。テフロン層の厚さは、通常、５０〜３００
μｍ程度である。The Teflon processing employed in the mold of the present invention is not special, but is the same as that performed in a frying pan or pan. As is well known, Teflon is represented by the general formula (—CF 2 —CF
2- ) is a trade name of DuPont of polytetrafluoroethylene represented by n . This polytetrafluoroethylene (preferably having a value of 6 to 8) is made of a metal (for example, stainless steel) constituting a mold. By irradiating the surface with heat according to a conventional method, a Teflon-processed mold is obtained. The thickness of the Teflon layer is usually 50 to 300
It is about μm.
【００２０】積層板の調製 叙上の金型を用いれば、木質材料を熱圧成形しても割れ
のきわめて少ないトレー状容器を製造することができ
る。本発明者は、木質材料として複数の木材単板を重ね
合わせた積層板を用いてトレー状の容器を製造するに当
たり、上述の金型を用いるとともに、積層板の調製に工
夫を加えることにより、割れの発生をさらに少なくでき
ることも見出している。 Preparation of Laminated Plate By using the above-mentioned mold, a tray-like container with extremely few cracks can be manufactured even when a wooden material is hot-pressed. The present inventor, in producing a tray-shaped container using a laminated plate obtained by laminating a plurality of wood veneers as a wood material, using the above-described mold, by adding a device to the preparation of the laminated plate, They have also found that the occurrence of cracks can be further reduced.
【００２１】すなわち、本発明のトレー状木製容器の製
造方法においては、積層板を作製する木材単板の片面ま
たは両面に接着剤を塗布した後軽く乾燥させて接着剤に
含まれている溶剤を除去してから、接着剤を塗布した面
を介して繊維方向が互いに交差するように少なくとも２
枚の木材単板を重ね合わせて積層板を作製した後、該積
層板に熱圧成形を行う。例えば、図３に示すように単板
を３枚使用する場合は、真ん中の単板の両面（または１
番上の単板と１番下の単板の片面）に接着剤を塗布し、
接着剤の溶剤を蒸発させ単板を重ねただけでは接着しな
いようにして、単板を互いに繊維方向が交差するように
重ねた状態で金型を用いて熱圧成形する。That is, in the method for producing a tray-shaped wooden container of the present invention, an adhesive is applied to one or both sides of a single veneer for producing a laminated board, and then lightly dried to remove the solvent contained in the adhesive. After removal, at least two fibers should intersect with each other through the adhesive-coated surface.
After laminating two pieces of wood veneer to produce a laminate, the laminate is subjected to hot pressing. For example, when three veneers are used as shown in FIG. 3, both sides (or 1) of the veneer in the middle are used.
Apply adhesive to one side of the top veneer and the bottom veneer)
The solvent of the adhesive is evaporated to prevent adhesion only by stacking the veneers, and the veneers are hot-pressed using a mold in a state where the veneers are stacked so that the fiber directions cross each other.
【００２２】従来の方法では、真ん中の単板の両面に接
着剤を塗布した後、予め冷圧で接着した合板の状態で熱
圧成形していたが、この方法では、３枚の単板のそれぞ
れが接着（固定）した状態で異なる方向にしわを作ろう
とするため、無理な応力がかかり、割れが生じやすかっ
たものと考えられる。In the conventional method, an adhesive is applied to both sides of the middle veneer, and then hot-pressed in the state of a plywood bonded in advance by cold pressure. In this method, three veneers are used. It is conceivable that, because each of them tries to form wrinkles in different directions in the state of being bonded (fixed), excessive stress was applied and cracks were easily generated.
【００２３】これに対して、本発明の方法においては、
各単板は接着されていないため成型時に自由に動く（木
材は伸縮性が殆どないため、成型時に単板は中心方向に
絞り込まれるように動く）ことができるので無理な応力
がかからず、割れが生じない。On the other hand, in the method of the present invention,
Since each veneer is not bonded, it can move freely at the time of molding (wood has little elasticity, so the veneer moves so as to be narrowed toward the center at the time of molding), so no excessive stress is applied, No cracks occur.
【００２４】本発明の方法において使用する単板を構成
する木材は、広葉樹および針葉樹のいずれでもよい。採
伐した材をそのまま、あるいは、乾燥された材は繊維飽
和点近くまで含水率を高めた後、0.２ｍｍ〜0.７ｍｍに
加工し、加工した後乾燥したもの（人工乾燥、天然乾燥
のいずれでも構わない。一般に含水率１０％〜２５％程
度のもの）を用いる。木目は柾目、板目を問わない。ま
た、これらの単板を短冊状にし編み込んだものを用いる
こともできる。単板の幅および長さは、製造する木製容
器の大きさに応じて任意に選択し得る。積層数は特に限
定されるものではないが、２〜５枚が好ましく、積層後
の板厚は0.９ｍｍ〜2.０ｍｍが成形に適している。The wood constituting the veneer used in the method of the present invention may be either hardwood or conifer. The harvested timber as it is, or the dried timber, after increasing the water content to near the fiber saturation point, is processed to 0.2 mm to 0.7 mm, processed and dried (either artificial drying or natural drying) Generally, a water content of about 10% to 25%) is used. The grain can be either straight grain or board grain. In addition, a strip obtained by knitting these veneers into a strip shape can also be used. The width and length of the veneer can be arbitrarily selected according to the size of the wooden container to be manufactured. The number of layers is not particularly limited, but is preferably 2 to 5 sheets, and the sheet thickness after lamination is from 0.9 mm to 2.0 mm is suitable for molding.
【００２５】本発明において用いる木材単板とは、木材
スライス単板と木材ロータリー単板を含む。それぞれの
単板の作製法は、概略、次のようになる。 スライス単板：スライスする木材の幅がトレー状木製容
器の幅よりも狭いときは（小径木を使用するときは）、
まず、木材を柱状に剥ぎ、その側面どうしを張り合わ
せ、集成材とする。次に、樹木の縦方向（伸長方向）に
そって、薄くスライスすることにより、スライス単板を
得る。木材がトレー状木製容器の幅よりも広いときは集
成材にせずに薄くスライスする。ロータリー単板：ロー
タリー単板は「ダイコンのかつら剥き」のように木材を
回転させながら薄く剥ぐことによって得られる。それを
適当な大きさに裁断してトレー状木製容器の材料とす
る。The wood veneer used in the present invention includes a wood slice veneer and a wood rotary veneer. The method of producing each veneer is roughly as follows. Sliced veneer: When the width of the wood to be sliced is smaller than the width of the tray-shaped wooden container (when using small diameter wood),
First, the wood is peeled off in a columnar shape, and the sides are stuck together to make a laminated wood. Next, the sliced veneer is obtained by thinly slicing the tree along the longitudinal direction (extending direction). If the wood is wider than the width of the tray-shaped wooden container, slice it thinly instead of gluing it. Rotary veneer: A rotary veneer is obtained by peeling a thin piece of wood while rotating it, as in "peeling radish wigs". It is cut into a suitable size to make the tray-shaped wooden container material.
【００２６】また、本発明において積層板作製に用いる
接着剤としては、食品などを載せる容器に適するように
接着養生後有害物質を発生せず、また、使用済みの容器
を廃棄して焼却させたときに不燃物や有害ガスを発生し
ないように、本質的に炭素（Ｃ）、水素（Ｈ）および酸
素（Ｏ）のみから構成され、且つ、後の加工成型が容易
となるように接着後に弾性を有する接着剤を用いる。こ
の条件を満たす好ましい接着剤の例としては、変性酢酸
ビニル系樹脂、エポキシ樹脂、ポリビニルアルコール樹
脂、グルコマンナン、デンプン系接着剤、ダンマル樹脂
（南洋材の抽出成分の一つ）等が挙げられる。In the present invention, the adhesive used for the production of the laminated board does not generate any harmful substances after the adhesive curing so as to be suitable for the container on which the food is placed, and the used container is discarded and incinerated. It is essentially composed of only carbon (C), hydrogen (H) and oxygen (O) so that sometimes incombustibles and harmful gases are not generated, and is elastic after bonding so that it can be easily processed later. Is used. Preferred examples of the adhesive satisfying this condition include a modified vinyl acetate resin, an epoxy resin, a polyvinyl alcohol resin, glucomannan, a starch adhesive, and a dammar resin (one of the components extracted from Nanyang timber).
【００２７】熱圧成形 次に、図４に示すように、接着剤の溶剤が除去され繊維
方向が互いに交差するように少なくとも２枚の木材スラ
イス単板を重ね合わせた積層板５を、金型の加熱温度９
０℃〜１３０℃にしてオス型６とメス型７との間に挟
み、ゆっくりと重ね合わせ型が整合したのを確認した
後、１０ｋｇ／ｃｍ2 〜２０ｋｇ／ｃｍ2 に加圧するこ
とにより、表面がフラットなトレー状木製容器８が成型
される。成型圧力は１ｋｇ／ｃｍ2 でも成型可能である
ことを確認している。用いる金型は、既述したように、
トレー状容器の被成形部位に応じてクリアランスに差が
設けられており、これによって、実質的に割れが発生し
ない成形が可能となる。The heat molding Next, as shown in FIG. 4, the laminate 5 obtained by superimposing at least two wood slices veneer as fiber direction is a solvent of the adhesive is removed intersect each other, the mold Heating temperature 9
In the 0 ° C. to 130 DEG ° C. sandwiched between the male 6 and female 7, after confirming that the type superposition slowly is aligned, by pressurizing the 10kg / cm 2 ~20kg / cm 2 , surface A flat tray-shaped wooden container 8 is molded. It has been confirmed that molding is possible even at a molding pressure of 1 kg / cm 2 . The mold used is, as described above,
A difference is provided in the clearance depending on the molding site of the tray-like container, and thereby, molding that does not substantially cause cracking becomes possible.
【００２８】このようなトレー状容器の成形において
は、通常、張出縁が確実に成型できるようにするため、
張出縁の幅を製品の所定の張出縁幅よりも大きめに設定
して余分の張出縁を裁断する。従来のやり方では、この
裁断は成型後に成型品を搬送して別の金型または裁断機
を用いて行っていたが、本発明の好ましい態様に従えば
成形と裁断を同じ工程内で行う。すなわち、図４に示す
ように、オス型とメス型によりトレー状の成形体８’が
保持された状態のまま（図４の中段）、裁断用のプレス
または刃１２が突出して余分な張出縁を裁断する（図４
の下段）。このように成形と裁断を同時に行うことによ
り、金型や裁断機に要するコストが削減でき且つ工程を
１つ省くことができるとともに、金型間で搬送する場合
の位置ずれが防止され均一な張出縁を有する製品が得ら
れる。In forming such a tray-shaped container, usually, in order to form the overhanging edge reliably,
The width of the overhanging edge is set to be larger than the predetermined overhanging edge width of the product, and the excess overhanging edge is cut. According to a conventional method, the cutting is performed after the molded article is conveyed after the molding and is performed using another mold or a cutting machine. However, according to a preferred embodiment of the present invention, the molding and the cutting are performed in the same step. That is, as shown in FIG. 4, while the tray-shaped molded body 8 ′ is held by the male mold and the female mold (the middle part of FIG. 4), the cutting press or the blade 12 protrudes and an extra bulge is formed. Cut the edge (Fig. 4
Below). By simultaneously performing the molding and the cutting as described above, the cost required for the mold and the cutting machine can be reduced and one process can be omitted. A product with an edge is obtained.
【００２９】本発明の方法は、図５に示すような容器本
体９とその外周の張出縁１０とを備えるトレー状（浅皿
状）木製容器１１を一体的に製造するのに適している。
本発明によって得られるトレー状容器は、天然木の木肌
の風合いの良さを生かしており、各種トレー、食器、プ
レート、文具、事務用品、玩具等の多方面の用途に使用
することができ、また、恒久的（長期間）使用および使
い棄て（短期間）使用のいずれにも適用可能である。な
お、トレー状容器の平面形状は、一般的には図５のよう
な矩形（長方形、正方形）、または円形であるが、必要
に応じて、その他の形状にすることもできる。The method of the present invention is suitable for integrally manufacturing a tray-shaped (shallow dish-shaped) wooden container 11 having a container main body 9 and a projecting edge 10 on its outer periphery as shown in FIG. .
The tray-shaped container obtained by the present invention makes use of the good texture of natural wood, and can be used for various purposes such as various trays, tableware, plates, stationery, office supplies, toys, and the like. It is applicable to both permanent (long-term) use and disposable (short-term) use. The planar shape of the tray-shaped container is generally rectangular (rectangular or square) or circular as shown in FIG. 5, but may be any other shape as necessary.
【００３０】[0030]
【実施例】以下に本発明の特徴をさらに明らかにするた
め実施例および比較例を示すが、本発明はこれらの例に
よって制限されるものではない。なお、下記の例におい
て良品率とは、同一の条件下で少なくとも５０個の木製
容器を製造した場合に、節の部分、縁の部分、アールの
ついた曲がった部分に長さ５ｍｍ以上の割れが１個以上
発生せず、しかも張出縁が均一な幅になっている製品の
比率を示す。EXAMPLES Examples and comparative examples are shown below to further clarify the features of the present invention, but the present invention is not limited by these examples. In the following example, the non-defective rate means that when at least 50 wooden containers are manufactured under the same conditions, a crack having a length of 5 mm or more is formed at a knot portion, an edge portion, and a curved portion with a radius. Indicates the ratio of products in which one or more pieces do not occur and the overhanging edge has a uniform width.
【００３１】比較例１ 材厚0.３ｍｍおよび0.５ｍｍに加工したスギのスライス
単板を、変性酢酸ビニル接着剤（日本エヌエスシー株式
会社製、Ｈ２９８Ｋ２）を用いて縦方向に２枚、横方向
に１枚交互に重ね合わせ、クリアランスが均一（１ｍ
ｍ）で表面が無処理のステンレス金型を用い金型温度１
０５℃、金型圧力１ｋｇ／ｃｍ2 、圧縮時間２５秒の条
件下で成形と裁断を同時に行ったところ、５％の良品率
で木製容器〔平断面矩形（１６０ｍｍ×２３０ｍｍ）、
深さ２０ｍｍ、張出縁幅５ｍｍ〕を製造できた。COMPARATIVE EXAMPLE 1 Two sliced veneers of cedar processed to a material thickness of 0.3 mm and 0.5 mm were vertically stretched two times using a modified vinyl acetate adhesive (H298K2 manufactured by NSC Co., Ltd.). One sheet in the direction alternately, uniform clearance (1m
m) using a stainless steel mold whose surface is untreated, mold temperature 1
Molding and cutting were performed simultaneously under the conditions of 05 ° C., mold pressure of 1 kg / cm 2 , and compression time of 25 seconds. As a result, a wooden container [flat section rectangular (160 mm × 230 mm),
20 mm deep, overhanging edge width 5 mm].
【００３２】比較例２ 材厚0.３ｍｍと0.５ｍｍに加工したスギのスライス単板
を、変性酢酸ビニル接着剤（日本エヌエスシー株式会社
製、Ｈ２９８Ｋ２）を用いて縦方向に２枚、横方向に１
枚重ね合わせ、クリアランスが均一（１ｍｍ）で、金型
表面をテフロンコーティングしたステンレス製金型を用
い金型温度１０５℃、金型圧力１ｋｇ／ｃｍ2 、圧縮時
間２５秒の条件下で成形と裁断を同時に行ったところ、
５０％の良品率で木製容器〔平断面矩形（１６０ｍｍ×
２３０ｍｍ）、深さ２０ｍｍ、張出縁幅５ｍｍ〕を製造
できた。COMPARATIVE EXAMPLE 2 Two sliced veneers of cedar processed into a material thickness of 0.3 mm and 0.5 mm were vertically stretched two times using a modified vinyl acetate adhesive (H298K2, manufactured by Nippon NS Co., Ltd.). 1 in direction
Using a stainless steel mold with a uniform clearance (1 mm) and a Teflon coating on the mold surface, molding and cutting at a mold temperature of 105 ° C., a mold pressure of 1 kg / cm 2 , and a compression time of 25 seconds. Went at the same time,
Wooden container [flat rectangular section (160mm ×
230 mm), a depth of 20 mm, and an overhanging edge width of 5 mm].
【００３３】比較例３ 材厚0.３ｍｍと0.５ｍｍに加工したスギのスライス単板
を、変性酢酸ビニル接着剤（日本エヌエスシー株式会社
製、Ｈ２９８Ｋ２）を用いて縦方向に２枚、横方向に１
枚重ね合わせ、クリアランスを変化させ〔図１の（１）
0.９ｍｍ、（２）1.８ｍｍ、（３）1.１ｍｍ、（４）1.
２ｍｍ〕表面が無処理のステンレス製金型を用い金型温
度１０５℃、金型圧力１ｋｇ／ｃｍ2 、圧縮時間２５秒
の条件下で成形と裁断を同時に行ったところ、３０％の
良品率で木製容器〔平断面矩形（１６０ｍｍ×２３０ｍ
ｍ）、深さ２０ｍｍ、張出縁幅５ｍｍ〕を製造できた。 Comparative Example 3 Two sliced veneers of Japanese cedar processed into 0.3 mm and 0.5 mm in thickness were densified two times in a vertical direction using a modified vinyl acetate adhesive (H298K2, manufactured by NSC). 1 in direction
Overlapping the sheets and changing the clearance [(1) in FIG.
0.9 mm, (2) 1.8 mm, (3) 1.1 mm, (4) 1.
2 mm] Using a stainless steel mold with an untreated surface, molding and cutting were performed simultaneously under the conditions of a mold temperature of 105 ° C., a mold pressure of 1 kg / cm 2 , and a compression time of 25 seconds. Wooden container [flat section rectangular (160mm × 230m
m), a depth of 20 mm, and an overhanging edge width of 5 mm].
【００３４】比較例４ 材厚0.３ｍｍと0.５ｍｍに加工したスギのスライス単板
を、変性酢酸ビニル接着剤（日本エヌエスシー株式会社
製、Ｈ２９８Ｋ２）を真ん中にくる単板の両面に塗布し
て乾燥させ、0.３ｍｍの単板を縦方向に２枚、0.５ｍｍ
の単板を横方向に１枚交互に張り合わせ、クリアランス
が均一（１ｍｍ）で表面が無処理のステンレス製金型を
用い金型温度１０５℃、金型圧力１ｋｇ／ｃｍ2 、圧縮
時間２５秒の条件下で成形と裁断を同時に行ったとこ
ろ、５０％の良品率で木製容器〔平断面矩形（１６０ｍ
ｍ×２３０ｍｍ）、深さ２０ｍｍ、張出縁幅５ｍｍ〕を
製造できた。 Comparative Example 4 A sliced cedar veneer processed to a material thickness of 0.3 mm and 0.5 mm was applied to both surfaces of a veneer in the middle of which a modified vinyl acetate adhesive (H298K2, manufactured by NSC, Japan) was placed. And dry, two 0.3mm veneers in the vertical direction, 0.5mm
The veneer laminated laterally one alternately clearance uniform (1mm) surface of untreated stainless steel mold was used Mold temperature 105 ° C., the mold pressure 1 kg / cm 2, compression time of 25 seconds When molding and cutting were performed simultaneously under the conditions, a wooden container [flat rectangular section (160 m
mx 230 mm), a depth of 20 mm, and an overhanging edge width of 5 mm].
【００３５】比較例５ 材厚0.３ｍｍと0.５ｍｍに加工したスギのスライス単板
を、変性酢酸ビニル接着剤（日本エヌエスシー株式会社
製、Ｈ２９８Ｋ２）を真ん中にくる単板の両面に塗布し
て乾燥させ、0.３ｍｍの単板を縦方向に２枚、0.５ｍｍ
の単板を横方向に１枚交互に張り合わせ、クリアランス
を変化させ〔図１の（１）0.９ｍｍ、（２）1.６ｍｍ、
（３）1.１ｍｍ、（４）1.２ｍｍ〕、金型表面をテフロ
ンコーティングしたステンレス製金型を用い金型温度１
０５℃、金型圧力１ｋｇ／ｃｍ2、圧縮時間２５秒の条
件下で成形し、さらに裁断機に成型品を搬送し、裁断し
たところ、４０％の良品率で木製容器〔平断面矩形（１
６０ｍｍ×２３０ｍｍ）、深さ２０ｍｍ、張出縁幅５ｍ
ｍ〕を製造できた。この時、成形と裁断を別々の工程で
行うと、張出縁幅が左右あるいは上下それぞれ７ｍｍ、
３ｍｍや８ｍｍ、２ｍｍといった、不均一な製品が多く
製造されることが認められた。 Comparative Example 5 A sliced cedar veneer processed to a material thickness of 0.3 mm and 0.5 mm was coated on both surfaces of a veneer in the middle of which a modified vinyl acetate adhesive (H298K2, manufactured by NSC, Japan) was placed. And dry, two 0.3mm veneers in the vertical direction, 0.5mm
The veneers are alternately laminated in the lateral direction, and the clearance is changed [(1) 0.9 mm in FIG. 1, (2) 1.6 mm,
(3) 1.1 mm, (4) 1.2 mm], using a stainless steel mold whose mold surface is coated with Teflon, mold temperature 1
Molding was performed under the conditions of 05 ° C., a mold pressure of 1 kg / cm 2 , and a compression time of 25 seconds. The molded product was further transported to a cutting machine and cut, and a wooden container [flat rectangular section (1
60mm × 230mm), depth 20mm, overhanging edge width 5m
m] could be produced. At this time, if molding and cutting are performed in separate steps, the overhanging edge width is
It was recognized that many non-uniform products such as 3 mm, 8 mm, and 2 mm were produced.
【００３６】実施例１ 材厚0.３ｍｍと0.５ｍｍに加工したスギのスライス単板
を、変性酢酸ビニル接着剤（日本エヌエスシー株式会社
製、Ｈ２９８Ｋ２）を真ん中にくる単板の両面に塗布し
て乾燥させ、0.３ｍｍの単板を縦方向に２枚、0.５ｍｍ
の単板を横方向に１枚交互に張り合わせ、クリアランス
を変化させ〔図１の（１）0.９ｍｍ、（２）1.６ｍｍ、
（３）1.１ｍｍ、（４）1.２ｍｍ〕、金型表面をテフロ
ンコーティングしたステンレス製金型を用い、金型温度
１０５℃、金型圧力１ｋｇ／ｃｍ2 、圧縮時間２５秒の
条件下で成形と裁断を同時に行ったところ、９５％の良
品率で木製容器〔平断面矩形（１６０ｍｍ×２３０ｍ
ｍ）、深さ２０ｍｍ、張出縁幅５ｍｍ〕を製造できた。 Example 1 A sliced veneer of cedar processed to a material thickness of 0.3 mm and 0.5 mm was applied to both surfaces of a veneer in the middle of which a modified vinyl acetate adhesive (H298K2, manufactured by NSC Japan Ltd.) was placed. And dry, two 0.3mm veneers in the vertical direction, 0.5mm
The veneers are alternately laminated in the lateral direction, and the clearance is changed [(1) 0.9 mm in FIG. 1, (2) 1.6 mm,
(3) 1.1 mm, (4) 1.2 mm], using a stainless steel mold having a mold surface coated with Teflon, under a mold temperature of 105 ° C., a mold pressure of 1 kg / cm 2 , and a compression time of 25 seconds. Molding and cutting at the same time, a wooden container [flat section rectangular (160 mm × 230 m
m), a depth of 20 mm, and an overhanging edge width of 5 mm].
【００３７】実施例２ 材厚0.３ｍｍと0.５ｍｍに加工したスギのスライス単板
を、変性酢酸ビニル接着剤（日本エヌエスシー株式会社
製、Ｈ２９８Ｋ２）を真ん中にくる単板の両面に塗布し
て乾燥させ、0.３ｍｍの単板を縦方向に２枚、0.５ｍｍ
の単板を横方向に１枚交互に張り合わせ、クリアランス
を変化させ〔図１の（１）0.９ｍｍ、（２）1.６ｍｍ、
（３）1.１ｍｍ、（４）1.２ｍｍ〕、金型表面をテフロ
ンコーティングしたステンレス製金型を用い、金型温度
１０５℃、金型圧力１ｋｇ／ｃｍ2 、圧縮時間２５秒の
条件下で成形と裁断を同時に行ったところ、９５％の良
品率で木製容器〔平断面矩形（直径１９０ｍｍの円
形）、深さ２０ｍｍ、張出縁幅５ｍｍ〕を製造できた。 Example 2 A sliced veneer of cedar processed to a material thickness of 0.3 mm and 0.5 mm was applied to both surfaces of a veneer in the middle of which a modified vinyl acetate adhesive (H298K2 manufactured by NSC, Japan) was placed. And dry, two 0.3mm veneers in the vertical direction, 0.5mm
The veneers are alternately laminated in the lateral direction, and the clearance is changed [(1) 0.9 mm in FIG. 1, (2) 1.6 mm,
(3) 1.1 mm, (4) 1.2 mm], using a stainless steel mold having a mold surface coated with Teflon, under a mold temperature of 105 ° C., a mold pressure of 1 kg / cm 2 , and a compression time of 25 seconds. When the molding and cutting were performed at the same time, a wooden container [rectangular flat cross section (circle having a diameter of 190 mm), depth of 20 mm, and overhanging edge width of 5 mm] could be manufactured at a non-defective rate of 95%.
【００３８】[0038]
【発明の効果】本発明に従えば、木質材料から割れを発
生させることなくトレー状木製容器を安定して製造する
ことができる。本発明によって得られる木製容器は、天
然木の有効利用を図りながら、廃棄、焼却に際して有害
ガスを発生させることもなく環境面からも好ましい製品
である。According to the present invention, a tray-shaped wooden container can be stably manufactured without generating cracks from a wooden material. The wooden container obtained by the present invention does not generate harmful gas at the time of disposal and incineration, while effectively utilizing natural trees, and is a preferable product from an environmental viewpoint.
【図１】平断面が矩形（四角形）のトレー状容器を製造
するのに用いる本発明の金型の平断面図（上）と側断面
図（下）である。FIG. 1 is a plan sectional view (top) and a side sectional view (bottom) of a mold of the present invention used to manufacture a tray-shaped container having a rectangular cross section (square).
【図２】平断面が円形のトレー状容器を製造するのに用
いる本発明の金型の平断面図（上）と側断面図（下）で
ある。FIG. 2 is a plan sectional view (top) and a side sectional view (bottom) of a mold of the present invention used to manufacture a tray-shaped container having a circular plan section.
【図３】本発明に従い繊維方向に交差するように木材単
板を重ね合わせて積層板を作製する様子を示すものであ
る。FIG. 3 is a view showing a state in which a veneer veneer is laminated so as to intersect in the fiber direction according to the present invention to produce a laminate.
【図４】本発明に従い積層板を加圧成型する様子を示す
ものである。FIG. 4 is a view showing a state in which a laminate is subjected to pressure molding according to the present invention.
【図５】本発明によって製造されるトレー状木製容器の
典型例を示すものである。FIG. 5 shows a typical example of a tray-shaped wooden container manufactured by the present invention.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 花田 賀津男 福岡県福岡市博多区博多駅南１丁目13−13 フクパ株式会社内 (72)発明者 杉野 照実 福岡県福岡市博多区博多駅南１丁目13−13 フクパ株式会社内 Ｆターム(参考） 2B230 AA15 BA01 BA03 BA04 EA11 EB03 EB05 EB12 EB13 EB23 EB28 EB29 EC24 2B250 AA17 AA25 BA05 BA09 CA15 DA03 DA04 EA13 FA13 FA21 FA31 FA33 FA37 GA03 HA01 HA03 3E033 AA08 AA10 BA13 BA30 BB08 DA08 DD01 EA10 FA01 4F202 AD06 AD20 AG03 AH58 CA17 CB01 CK41 CN01 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazuo Hanada 1-13-13 Hakata-eki Minami, Hakata-ku, Fukuoka Prefecture Inside Fukupa Corporation (72) Inventor Terumi Sugino 1-chome, Hakata-eki Minami, Hakata-ku, Fukuoka Prefecture 13-13 Fukupa Co., Ltd. DD01 EA10 FA01 4F202 AD06 AD20 AG03 AH58 CA17 CB01 CK41 CN01
Claims (3)
容器を製造するのに用いられる金型であって、（１）ト
レー状容器の被成形部位に応じて金型のメス型とオス型
との間のクリアランスに差が設けられ、トレー状容器の
底部周縁域に対応する部位のクリアランスが最も大きく
木質材料の厚みの１２０％〜１８０％程度となってお
り、トレー状容器の底部中央域に対応する部位のクリア
ランスが最も小さく木質材料の厚みにほぼ等しくなって
おり、（２）トレー状容器の底部中央域に対応する部位
が底上げ形状を呈しており、さらに（３）木質材料と接
触する表面がテフロン加工されていることを特徴とする
金型。1. A mold used for manufacturing a wooden container in the form of a tray by hot-pressing a wooden material, and (1) a female mold of the mold in accordance with a portion to be molded of the tray-shaped container. A difference is provided in the clearance between the tray and the male type, and the clearance at the portion corresponding to the bottom peripheral area of the tray-shaped container is the largest and is about 120% to 180% of the thickness of the wooden material. The clearance at the portion corresponding to the central region is the smallest and is substantially equal to the thickness of the woody material. (2) The portion corresponding to the bottom central region of the tray-shaped container has a raised bottom shape. A surface in contact with the mold is Teflon processed.
布した後乾燥させて接着剤中の溶剤を除去する工程、接
着剤を塗布した面を介して繊維方向が互いに交差するよ
うに少なくとも２枚の木材単板を重ね合わせて積層板を
作製する工程、該積層板を請求項１の金型を用いて熱圧
成形する工程を含むことを特徴とするトレー状木製容器
の製造方法。2. A step of applying an adhesive to one or both surfaces of a veneer veneer and drying it to remove a solvent in the adhesive, at least so that the fiber directions intersect with each other through the surface to which the adhesive is applied. A method for manufacturing a tray-shaped wooden container, comprising: a step of forming a laminate by laminating two wood veneers; and a step of hot-pressing the laminate using the mold of claim 1.
で、木製容器の所定の張出縁幅より大きめに設定した余
分の張出縁を裁断することを特徴とする請求項２のトレ
ー状木製容器の製造方法。3. An overhanging edge set to be larger than a predetermined overhanging edge width of the wooden container in the step of hot-pressing the laminate using a mold. For manufacturing tray-shaped wooden containers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29292898A JP2000102909A (en) | 1998-09-29 | 1998-09-29 | Production of wooden vessel using new die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29292898A JP2000102909A (en) | 1998-09-29 | 1998-09-29 | Production of wooden vessel using new die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000102909A true JP2000102909A (en) | 2000-04-11 |
Family
ID=17788231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29292898A Pending JP2000102909A (en) | 1998-09-29 | 1998-09-29 | Production of wooden vessel using new die |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000102909A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003103911A1 (en) * | 2002-06-11 | 2003-12-18 | 株式会社合電 | Deep wooden container and production method therefor |
| JP2006289900A (en) * | 2005-04-14 | 2006-10-26 | Olympus Corp | Compressed wood processed product and its manufacturing method |
| JP2006321201A (en) * | 2005-05-20 | 2006-11-30 | Olympus Corp | Wood processing method and compressed wood product |
| JP2006321202A (en) * | 2005-05-20 | 2006-11-30 | Olympus Corp | Wood processing method and compressed wood product |
| WO2007102661A1 (en) * | 2006-03-08 | 2007-09-13 | Young-A Lee | Method for manufacturing timber key |
| JP2008168637A (en) * | 2008-01-23 | 2008-07-24 | Shinrin Shigen Riyo Sokushin Kenkyusho:Kk | Method and apparatus for manufacturing wooden container |
| JP2011093275A (en) * | 2009-11-02 | 2011-05-12 | Forestry & Forest Products Research Institute | Method for manufacturing wooden veneer container, wooden veneer container manufactured by the same, and hot press apparatus for manufacturing wooden veneer container |
-
1998
- 1998-09-29 JP JP29292898A patent/JP2000102909A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003103911A1 (en) * | 2002-06-11 | 2003-12-18 | 株式会社合電 | Deep wooden container and production method therefor |
| JP2006289900A (en) * | 2005-04-14 | 2006-10-26 | Olympus Corp | Compressed wood processed product and its manufacturing method |
| JP2006321201A (en) * | 2005-05-20 | 2006-11-30 | Olympus Corp | Wood processing method and compressed wood product |
| JP2006321202A (en) * | 2005-05-20 | 2006-11-30 | Olympus Corp | Wood processing method and compressed wood product |
| WO2007102661A1 (en) * | 2006-03-08 | 2007-09-13 | Young-A Lee | Method for manufacturing timber key |
| JP2008168637A (en) * | 2008-01-23 | 2008-07-24 | Shinrin Shigen Riyo Sokushin Kenkyusho:Kk | Method and apparatus for manufacturing wooden container |
| JP2011093275A (en) * | 2009-11-02 | 2011-05-12 | Forestry & Forest Products Research Institute | Method for manufacturing wooden veneer container, wooden veneer container manufactured by the same, and hot press apparatus for manufacturing wooden veneer container |
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