JP2013252895A

JP2013252895A - Multilayer corrugated board body frame

Info

Publication number: JP2013252895A
Application number: JP2012140181A
Authority: JP
Inventors: Hiroshi Hayakawa; 宏早川
Original assignee: Ecology Kaihatsu Kk
Current assignee: Ecology Kaihatsu Kk
Priority date: 2012-06-06
Filing date: 2012-06-06
Publication date: 2013-12-19

Abstract

PROBLEM TO BE SOLVED: To solve a problem that a body frame using American-manufactured Tri-Wall sheets having high strength has been conventionally used exclusively in the market in a field of a body frame formed of corrugated boards though a price is high.SOLUTION: Multilayer corrugated boards are glued to corners and bodies which are keys to the strength of a body frame by using domestically-manufactured corrugated sheets and by which pressure resistance is improved to a large extent. Thus, an inexpensive and strong body frame can be manufactured.

Description

本考案はダンボール製の胴枠の分野に属するThe present invention belongs to the field of cardboard frame

従来から使用されているダンボール製の胴枠は強度の強いアメリカ製のダンボールシート（ＡＡまたは３Ａ）で作られたものが広く使用されている。Conventionally used corrugated cardboard frames made of strong American cardboard sheets (AA or 3A) are widely used.

これらのアメリカ製ダンボールシートは、日本製のダンボールシートに比べ、圧倒的に強度が高く、そのため輸出用梱包市場の胴枠をほぼ独占している。したがって価格も高価なものになっている。These American cardboard sheets are overwhelmingly stronger than Japanese cardboard sheets, so they almost monopolize the frame of the export packaging market. Therefore, the price is also expensive.

これに対し本案の胴枠は、国産ダンボールでの胴枠の要所要所にシートを複数枚貼り合わせ、多層化して補強し、全体として高強度の胴枠を作るものである。On the other hand, the trunk frame of the present plan is to laminate a plurality of sheets on the necessary parts of the trunk frame of domestic corrugated cardboard, and to reinforce it by multilayering to make a high-strength trunk frame as a whole.

国産の胴枠１はアメリカ製のダンボールに比べて大変安価でありこの安いダンボールを使って構造的に強い胴枠を作れば、経済的に大きな効果が期待できる。Domestically produced body frame 1 is very cheap compared to American cardboard, and if a structurally strong body frame is made using this cheap cardboard, a great economic effect can be expected.

ダンボール製胴枠の強度のかなめである四か所の角部１Ａ（コーナー）をダンボールで３層に貼り合わせ、かつ胴部１Ｂも要所部分を２〜３枚貼り合わせ補強し、胴枠全体の耐圧強度を大幅に増強した。The four corners 1A (corners), which are the key to the strength of the corrugated cardboard frame, are laminated in three layers with corrugated cardboard. The pressure strength of the was greatly increased.

使用する国産ダンボールシートは通常複両面ダンボールのＫ７−Ｗか若しくは複両面ダンボールＫ６−Ｗ強化芯を使用するのが望ましい。The domestic cardboard sheet to be used is preferably a double-sided cardboard K7-W or a double-sided cardboard K6-W reinforced core.

胴枠１の外周囲部は前記ダンボールを横目（フルートの方向が水平になる）にして使用すると、シートが折れ難くなるので良い。そして胴枠１の強度のかなめである角部の補強板１Ａａは、横目の角部１Ａの内側に縦目（フルートの方向が垂直になる）の２層ダンボールを貼り合わせ、周囲部と合わせ３層構造になるように作る。If the outer peripheral portion of the trunk frame 1 is used with the corrugated cardboard having a side face (the direction of the flute is horizontal), the sheet may be hardly broken. The corner reinforcing plate 1Aa, which is a key to the strength of the body frame 1, is formed by laminating a double-layer corrugated cardboard (vertical flute direction) on the inner side of the corner 1A of the horizontal eye, and matching the peripheral part 3 Make a layered structure.

胴枠１の胴部の補強板１Ｂａも部分的に前記ダンボールを縦目にして１〜２枚貼り合わせて補強する。The reinforcing plate 1Ba of the trunk portion of the trunk frame 1 is also partially reinforced by sticking one or two of the cardboards vertically.

３層の角部１Ａにつける折り目線２の付け方は、鉄製のアングル鋼材や丸棒で折り目線に沿って加圧して付ける。この時ダンボールに罫割れが発生しないよう、充分注意して加圧する。折り目線２は、１本で９０度曲げることができるので、２本つけて１８０度折り曲げ可能に作る。２本の折り目線の間隔は３０ｍｍ〜５０ｍｍくらいが良い。The method of attaching the crease line 2 attached to the three-layer corner 1A is performed by applying pressure along the crease line with an iron angle steel material or a round bar. At this time, the cardboard is pressurized with great care so as not to cause ruled cracks. Since one crease line 2 can be bent 90 degrees, two crease lines 2 are attached so that they can be bent 180 degrees. The distance between the two crease lines is preferably about 30 mm to 50 mm.

角部１Ａと胴部１Ｂに付ける補強板は、胴枠の内側に限らず、外側につけても良い。補強板の大きさは、耐圧強度に直接影響するので、必要とされる耐圧強度に応じて、その幅を３００ｍｍ〜８００ｍｍくらいのものを調整して使用する。The reinforcing plate to be attached to the corner portion 1A and the trunk portion 1B is not limited to the inside of the trunk frame and may be attached to the outside. Since the size of the reinforcing plate directly affects the pressure strength, the one having a width of about 300 mm to 800 mm is used according to the required pressure strength.

胴枠１の胴部１Ｂの上面に、胴枠のフタ３となるフラップ部を付けることもできる。A flap portion that becomes the lid 3 of the trunk frame can be attached to the upper surface of the trunk portion 1B of the trunk frame 1.

Industrial applicability

本案胴枠１は、現在輸出梱包市場に置いて、ほぼ独占的に使用されている、トライウォール製胴枠に対し、これとほぼ同程度の耐圧強度を有し、かつ安価な胴枠を提供するものであり、今後この市場において広く使用されることが期待できる。The proposed frame 1 has a pressure frame strength almost the same as that of the tri-walled frame that is used almost exclusively in the export packaging market, and provides an inexpensive frame. It can be expected to be widely used in this market in the future.

胴枠全体の斜視図である It is a perspective view of the whole trunk frame 図１を上から見た図である It is the figure which looked at FIG. 1 from the top 補強板を胴枠の外側に取りつけた場合の図である It is a figure at the time of attaching a reinforcement board to the outer side of a trunk frame 角部に付けた折り目の拡大図である It is an enlarged view of the crease attached to the corner. 胴枠に蓋を付けた場合の図である It is a figure at the time of attaching a lid to a trunk frame

１胴枠
１Ａ角部
１Ａａ角部の補強板
１Ｂ胴部
１Ｂａ胴部の補強板
２折り目線
３蓋1 trunk frame 1A corner 1Aa corner reinforcement plate 1B trunk 1Ba trunk reinforcement 2 crease line 3 lid

Claims

In a rectangular cardboard body frame, one or two corrugated cardboards are bonded to four corners and four parts of the trunk, and the strength is increased by multilayering. frame

The multi-layer corrugated cardboard frame according to claim 1, wherein a flap piece serving as a lid of the trunk frame is formed on an upper surface of the trunk portion.