JP2008094403A

JP2008094403A - Corrugated fiberboard tray

Info

Publication number: JP2008094403A
Application number: JP2006275182A
Authority: JP
Inventors: Hirokazu Kihata; 大積喜畑; Hironori Sugita; 裕紀杉田
Original assignee: Rengo Co Ltd
Current assignee: Rengo Co Ltd
Priority date: 2006-10-06
Filing date: 2006-10-06
Publication date: 2008-04-24

Abstract

<P>PROBLEM TO BE SOLVED: To provide a corrugated fiberboard tray having excellent strength which is easily lifted during the conveyance, and manufactured with a small amount of paper corrugated fiberboard. <P>SOLUTION: The corrugated fiberboard tray has a double structure consisting of an outer side plate 4, a top plate 5 and an inner side plate 6, in which a pair of side walls 2 and a pair of end walls 8 are provided around an octagonal bottom wall 1 having diagonal sides on four corner, and the side walls 2 are successively and continuously provided on the bottom wall 1. Folded pieces 9, 10 are continuously provided on both sides of the outer side plate 4 and the inner side plate 6 via corner plates 7, 8. Bottom corner pieces 12 continuously provided on the diagonal sides of the bottom wall 1 are raised and held between the corner plates 7, 8 and the folded pieces 9, 10 overlap each other along the inner side of each end wall 3. Engagement projections 18 provided at the upper ends of the corner plates 7, 8 are engaged with notch parts 19 formed in diagonal sides of sash plates 11 extending from upper ends of the end walls 3. Each insertion piece 13 projecting from both sides of each sash plate 11 is inserted in a through hole 14 provided in the top plate 5 of each side wall 2 for keeping the shape. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

この発明は、物品の運搬・保管等に使用する段ボール製トレーに関するものである。 The present invention relates to a corrugated tray used for transporting and storing articles.

一般に、野菜、果物等の運搬に使用する段ボール製トレーとして、図４に示すようなものが使用されている。このトレーは、底壁５０の周縁から各一対の側壁５１及び端壁５２を起立させ、端壁５２の上縁から桟板５３を延出し、この桟板５３と側壁５１とを係合させて側壁５１と端壁５２の起立状態を維持するものである。 In general, a cardboard tray used for transporting vegetables, fruits and the like is used as shown in FIG. In this tray, a pair of side walls 51 and end walls 52 are erected from the peripheral edge of the bottom wall 50, a crosspiece 53 is extended from the upper edge of the endwall 52, and the crosspiece 53 and the side wall 51 are engaged with each other. The standing state of the side wall 51 and the end wall 52 is maintained.

このトレーでは、側壁５１が外側板５４に頂板５５及び内側板５６を連設した二重構造となっており、端壁５２の内面には、外側板５４及び内側板５６の両側縁から延出された折曲片５７，５８が重ねられ、桟板５３の先端部両側縁に突設した係止片５９を頂板５５の貫穴６０に差し込むことにより、側壁５１と端壁５２とを係合させている。 In this tray, the side wall 51 has a double structure in which the top plate 55 and the inner plate 56 are connected to the outer plate 54, and the inner surface of the end wall 52 extends from both side edges of the outer plate 54 and the inner plate 56. The bent pieces 57, 58 are overlapped, and engaging pieces 59 projecting from both side edges of the front end of the crosspiece 53 are inserted into the through holes 60 of the top plate 55, thereby engaging the side wall 51 and the end wall 52. I am letting.

しかしながら、上記のようなトレーでは、コーナー部分が角張っているため、運搬に際して、対角位置のコーナー部分に手を押し当てて持ち上げるとき、手に馴染みにくく、また、製造に必要な用紙の使用量が多いという問題もある。 However, in the trays as described above, the corners are angular, so when transporting the hand against the corners on the diagonal position, it is difficult to become familiar with the hands, and the amount of paper required for production There is also a problem that there are many.

その対策として、底壁を八角形等の多角形とし、底壁及び桟板に斜辺を形成して、その斜辺沿いに折曲片を曲げただけの構成とすると、コーナー部分を強く押したとき、折曲片が内側に入り込むように変形して、野菜等の内容物を傷めるおそれがある。 As a countermeasure, when the bottom wall is a polygon such as an octagon, the bottom wall and the crosspiece are formed with a hypotenuse, and the bent piece is bent along the hypotenuse, The bent pieces may be deformed so as to enter the inside, and the contents such as vegetables may be damaged.

そこで、この発明は、運搬時に持ち上げやすく、強度に優れ、少量の用紙で製造できる段ボール製トレーを提供することを課題とする。 Accordingly, an object of the present invention is to provide a corrugated tray that is easy to lift during transportation, has excellent strength, and can be manufactured with a small amount of paper.

上記課題を解決するため、この発明は、底壁の周囲に各一対の側壁及び端壁を設け、側壁を、底壁に順次連設した外側板、頂板及び内側板から成る二重構造とし、外側板及び内側板の両側に連設した折曲片を重ねて端壁の内側に沿わせ、端壁の上端から延びる桟板の両側に突設した差込片を、側壁の頂板に設けた貫穴に差し込んで保形する段ボール製トレーにおいて、底壁を、四隅に斜辺を有する八角形として、その斜辺に底隅片を連設し、外側板及び内側板とそれぞれの折曲片との間に隅板を介在させ、底隅片を起立させて内外の隅板の間に挟み込み、桟板にも両側に斜辺を形成し、隅板の上端に設けた係合突起を、桟板の斜辺に設けた切欠部に係合させたのである。 In order to solve the above problems, the present invention provides a double structure including an outer plate, a top plate, and an inner plate, each of which is provided with a pair of side walls and end walls around the bottom wall, and the side walls are sequentially connected to the bottom wall. Folding pieces connected to both sides of the outer plate and inner plate are overlapped along the inside of the end wall, and insertion pieces protruding from both sides of the crosspiece extending from the upper end of the end wall are provided on the top plate of the side wall. In a corrugated cardboard tray that is inserted into a through-hole and retains its shape, the bottom wall has an octagonal shape with oblique sides at the four corners, and bottom corner pieces are continuously connected to the oblique sides, and the outer and inner plates and the respective bent pieces are A corner plate is interposed between them, the bottom corner piece is erected and sandwiched between the inner and outer corner plates, the slant sides are also formed on both sides of the cross plate, and the engaging projections provided on the top end of the cross plate are formed on the slant side of the cross plate. It was made to engage with the provided notch.

この段ボール製トレーでは、コーナー部分が面取状に落とされているため、運搬に際して、対角位置のコーナー部分に手を押し当てて持ち上げるとき、手に馴染んで容易に持ち上げることができる。 In this corrugated tray, the corner portion is dropped in a chamfered shape, and therefore, when transporting, the hand can be easily lifted in conformity with the hand when the hand is pressed against the corner portion at the diagonal position.

また、底隅片が内外の隅板で挟持され、隅板の係合突起が桟板の切欠部に係合しているので、コーナー部分を強く押した場合の変形も防止され、内容物が保護される。 In addition, the bottom corner piece is sandwiched between the inner and outer corner plates, and the engaging projections of the corner plates are engaged with the notches of the crosspieces, so that deformation when the corner portion is pressed strongly is prevented, and the contents are Protected.

また、従来のコーナー部分が角張ったトレーと比較して、周壁の周方向の長さが短くなるので、製造に必要な用紙の使用量も抑制される。 In addition, since the circumferential length of the peripheral wall is shortened as compared with a tray having a square corner portion, the amount of paper used for manufacturing is also suppressed.

以下、この発明の実施形態を添付図面に基づいて説明する。 Embodiments of the present invention will be described below with reference to the accompanying drawings.

このトレーは、図１に示すような段ボールシートのブランクから形成される。このブランクでは、八角形とした底壁１の長方向の対向する側辺に側壁２が、幅方向の対向する端辺に端壁３がそれぞれ連設され、側壁２は、底壁１側から外側板４、頂板５及び内側板６が順次連設されたものとされている。 The tray is formed from a cardboard sheet blank as shown in FIG. In this blank, the side wall 2 is connected to the opposite side of the octagonal bottom wall 1 in the longitudinal direction, and the end wall 3 is connected to the opposite side of the width direction. The outer plate 4, the top plate 5, and the inner plate 6 are sequentially connected.

外側板４及び内側板６の両側には、それぞれ隅板７，８を介して折曲片９，１０が連設され、端壁３の先端には桟板１１が連設されている。底壁１の四隅の斜辺には、三角状の底隅片１２が連設されている。 Bending pieces 9 and 10 are connected to both sides of the outer plate 4 and the inner plate 6 via corner plates 7 and 8, respectively, and a crosspiece 11 is connected to the end of the end wall 3. Triangular bottom corner pieces 12 are continuously provided on the hypotenuses of the four corners of the bottom wall 1.

桟板１１の両側には差込片１３が連設され、頂板５の両端部には貫穴１４が設けられている。折曲片１０には、対向する側壁２のものが互いに噛み合うように、切溝１５が入れられている。 Insert pieces 13 are continuously provided on both sides of the crosspiece 11, and through holes 14 are provided at both ends of the top plate 5. A cut groove 15 is formed in the bent piece 10 so that the ones on the opposite side walls 2 are engaged with each other.

内側板６の先端中央部には係合突起１６が設けられ、底壁１には、外側板４との境界中央部に貫穴１７が設けられている。 An engagement protrusion 16 is provided at the center of the tip of the inner plate 6, and a through hole 17 is provided in the center of the boundary with the outer plate 4 in the bottom wall 1.

隅板７，８の組立時に上端となる端縁には係合突起１８が設けられ、桟板１１の両側基部に形成された斜辺には、切欠部１９が設けられている。 Engaging protrusions 18 are provided on the edge that is the upper end when the corner plates 7 and 8 are assembled, and notches 19 are provided on the hypotenuses formed on the bases on both sides of the crosspiece 11.

上記のようなブランクを組み立てるには、図２に示すように、底壁１から対向する側壁２の外側板４を上方へ起こし、頂板５を内側へ折り曲げ、内側板６を下方へ折り曲げて、係合突起１６を貫穴１７に係合させる。 To assemble the blank as described above, as shown in FIG. 2, the outer plate 4 of the side wall 2 facing the bottom wall 1 is raised upward, the top plate 5 is bent inward, the inner plate 6 is bent downward, The engaging protrusion 16 is engaged with the through hole 17.

次に、隅板８を斜め内側へ折り曲げ、折曲片１０を端壁３の基端沿いに内側へ折り曲げて、対向する側壁２から延びる切溝１５同士を噛み合わせ、底壁１から底隅片１２を上方へ起こし、隅板７を斜め内側へ折り曲げて、隅板７，８の間に底隅片１２を挟み込む。 Next, the corner plate 8 is bent diagonally inward, the bent piece 10 is bent inward along the base end of the end wall 3, and the cut grooves 15 extending from the opposite side walls 2 are engaged with each other. The piece 12 is raised upward, the corner plate 7 is bent obliquely inward, and the bottom corner piece 12 is sandwiched between the corner plates 7 and 8.

そして、図３に示すように、折曲片９を端壁３の基端沿いに内側へ折り曲げ、端壁３を上方へ起こし、桟板１１を内側水平方向へ折り曲げ、係合突起１８を切欠部１９に係合させ、差込片１３を貫穴１４に差し込む。 Then, as shown in FIG. 3, the bent piece 9 is bent inward along the base end of the end wall 3, the end wall 3 is raised upward, the crosspiece 11 is bent in the inner horizontal direction, and the engagement protrusion 18 is cut out. The insertion piece 13 is inserted into the through hole 14 by engaging with the portion 19.

このとき、桟板１１の厚みにより、係合突起１８は、桟板１１の上面から突出しないようになっている。 At this time, due to the thickness of the crosspiece 11, the engagement protrusion 18 does not protrude from the upper surface of the crosspiece 11.

上記のような段ボール製トレーでは、側壁２と端壁３の間のコーナー部分が底壁１の斜辺に沿った隅板７，８とされ、面取状に落とされているため、運搬に際して、対角位置のコーナー部分に手を押し当てて持ち上げるとき、稜部が手のひらに食い込むようなことがなく、手に馴染んで容易に持ち上げることができる。 In the cardboard tray as described above, the corner portion between the side wall 2 and the end wall 3 is the corner plates 7 and 8 along the oblique side of the bottom wall 1 and is dropped in a chamfered shape. When the hand is pressed against the corner portion at the diagonal position and lifted, the ridge portion does not bite into the palm of the hand and can be lifted up easily by adapting to the hand.

また、底隅片１２が内外の隅板７，８で挟持され、隅板７，８の係合突起１８が桟板１１の切欠部１９に係合しているので、コーナー部分を強く押した場合の変形も防止され、折曲片１０が内側へ迫り出して、内容物の野菜等を傷つけるようなこともない。 Further, since the bottom corner piece 12 is sandwiched between the inner and outer corner plates 7 and 8 and the engaging projections 18 of the corner plates 7 and 8 are engaged with the cutout portion 19 of the crosspiece 11, the corner portion is strongly pressed. The deformation of the case is also prevented, and the bent piece 10 does not squeeze inward, and the contents such as vegetables are not damaged.

また、隅板７，８が支柱となって、段積み時の耐荷重性が向上し、重量のある野菜等を多数収納して積み上げても、高さ方向に変形しにくくなり、係合突起１８が桟板１１から突出していないことと相俟って、安定して積み上げることができる。 In addition, the corner plates 7 and 8 serve as struts to improve the load resistance during stacking, and even when a large number of heavy vegetables are stored and stacked, they are difficult to deform in the height direction, and the engagement protrusions Combined with the fact that 18 does not protrude from the crosspiece 11, it can be stably stacked.

また、従来のコーナー部分が角張ったトレーと比較して、各一対の側壁２及び端壁３並びに四隅の隅板７，８から構成される周壁の周方向の長さが短くなるので、製造に必要な用紙の使用量も抑制される。 In addition, the circumferential length of the peripheral wall composed of each pair of the side walls 2 and end walls 3 and the four corner corner plates 7 and 8 is shorter than that of a tray having a square corner portion. The required amount of paper is also reduced.

この発明の実施形態に係る段ボール製トレーのブランクを示す図The figure which shows the blank of the cardboard tray which concerns on embodiment of this invention 同上の組立過程を示す斜視図Perspective view showing the assembly process 同上の組立状態を示す斜視図The perspective view which shows an assembly state same as the above. 従来の段ボール製トレーを示す斜視図Perspective view showing a conventional cardboard tray

符号の説明Explanation of symbols

１底壁
２側壁
３端壁
４外側板
５頂板
６内側板
７，８隅板
９，１０折曲片
１１桟板
１２底隅片
１３差込片
１４貫穴
１５切溝
１６係合突起
１７貫穴
１８係合突起
１９切欠部 DESCRIPTION OF SYMBOLS 1 Bottom wall 2 Side wall 3 End wall 4 Outer plate 5 Top plate 6 Inner plate 7,8 Corner plate 9,10 Bending piece 11 Crosspiece 12 Bottom corner piece 13 Insertion piece 14 Through hole 15 Groove 16 Engagement protrusion 17 Through Hole 18 Engagement protrusion 19 Notch

Claims

底壁(1)の周囲に各一対の側壁(2)及び端壁(3)を設け、側壁(2)を、底壁(1)に順次連設した外側板(4)、頂板(5)及び内側板(6)から成る二重構造とし、外側板(4)及び内側板(6)の両側に連設した折曲片(9,10)を重ねて端壁(3)の内側に沿わせ、端壁(3)の上端から延びる桟板(11)の両側に突設した差込片(13)を、側壁(2)の頂板(5)に設けた貫穴(14)に差し込んで保形する段ボール製トレーにおいて、
底壁(1)を、四隅に斜辺を有する八角形として、その斜辺に底隅片(12)を連設し、外側板(4)及び内側板(6)とそれぞれの折曲片(9,10)との間に隅板(7,8)を介在させ、底隅片(12)を起立させて内外の隅板(7,8)の間に挟み込み、桟板(11)にも両側に斜辺を形成し、隅板(7,8)の上端に設けた係合突起(18)を、桟板(11)の斜辺に設けた切欠部(19)に係合させたことを特徴とする段ボール製トレー。 A pair of side walls (2) and an end wall (3) are provided around the bottom wall (1), and the side wall (2) is successively connected to the bottom wall (1), an outer plate (4), a top plate (5). The inner plate (6) has a double structure, and the folded pieces (9, 10) arranged on both sides of the outer plate (4) and the inner plate (6) are overlapped along the inside of the end wall (3). Insert the insertion pieces (13) protruding from both sides of the crosspiece (11) extending from the upper end of the end wall (3) into the through holes (14) provided in the top plate (5) of the side wall (2). In corrugated trays that retain shape,
The bottom wall (1) is an octagon having a hypotenuse at the four corners, and the bottom corner piece (12) is connected to the hypotenuse, and the outer plate (4) and the inner plate (6) and the respective bent pieces (9, 10) with the corner plate (7, 8) interposed between them, and the bottom corner piece (12) is raised and sandwiched between the inner and outer corner plates (7, 8). The oblique projection is formed, and the engagement protrusion (18) provided on the upper end of the corner plate (7, 8) is engaged with the notch (19) provided on the oblique side of the crosspiece (11). Cardboard tray.