JP2010120678A

JP2010120678A - Lid set and container

Info

Publication number: JP2010120678A
Application number: JP2008296544A
Authority: JP
Inventors: Shunsuke Takagi; 俊輔高木
Original assignee: Sanko Co Ltd
Current assignee: Sanko Co Ltd
Priority date: 2008-11-20
Filing date: 2008-11-20
Publication date: 2010-06-03
Anticipated expiration: 2028-11-20
Also published as: JP5164113B2

Abstract

PROBLEM TO BE SOLVED: To provide a lid set which stablilizes containers each composed of the lid set and a tubular case, with the containers piled up, and which is more excellent in cost-effectiveness to a manufacturing cost than that of conventional ones, and also to provide the container. SOLUTION: In the lid set 50, when a lower lid 61 is placed on a pallet 10 and the tubular case 40 is placed thereon, a part of the tubular case 40 is positioned just over a beam 20 of the pallet 10. When an upper lid 51 is placed on the tubular case 40, a second upper lid-pallet connecting protrusion 55 provided on the upper face of the upper lid 51 is positioned just over the lower tubular case 40. When another pallet 10 is placed on the upper lid 51, the second upper lid-pallet connection protrusion 55 is engaged by protrusion and recess connection to a beam engagement hole 24 in the beam 20 of the pallet 10, and a part of the beam 20 of the upper pallet 10 is positioned just over the tubular case 40. COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、上下両端面が開放した筒形ケースの両端開口を上蓋体と下蓋体とで閉塞してなるコンテナと、それら下蓋体と上蓋体とからなる蓋体セットに関する。 The present invention relates to a container in which both end openings of a cylindrical case whose upper and lower end surfaces are open are closed with an upper lid body and a lower lid body, and a lid body set including these lower lid body and upper lid body.

図１２に示すように、この種の従来の下蓋体１は、下面に複数の桁部１Ｋを備えて、床面との間にフォークリフトのフォークを挿入するスペースを確保している。また、上蓋体２を下蓋体１の上に載置すると位置決めされる。そして、図１３に示すように、上蓋体２と下蓋体１と筒形ケース３とからなるコンテナ４が複数積み上げ可能になっている（例えば、特許文献１参照）。
特許第４１３９６２７号公報（第２図、第３図） As shown in FIG. 12, this type of conventional lower lid body 1 has a plurality of girders 1K on the lower surface, and secures a space for inserting a fork of a forklift between the floor surface. Further, when the upper lid 2 is placed on the lower lid 1, the positioning is performed. And as shown in FIG. 13, the container 4 which consists of the upper cover body 2, the lower cover body 1, and the cylindrical case 3 can be piled up (for example, refer patent document 1).
Japanese Patent No. 4139627 (FIGS. 2 and 3)

ところで、上記した従来の下蓋体１は、フォークとの衝突、床面との摩擦等を考慮すると汎用のパレットと同様の強度が必要になり、そのような強度を確保すると重量が増すと共に製造コストが高くなる。そして、筒形ケース３の下面開口を閉塞する目的以外に使用不可能な下蓋体１に、汎用のパレットと同様の製造コストをかけると費用対効果が悪くなる。また、上記した従来の蓋体セットでは、図１４に示すように、上蓋体２の下面に対して筒形ケース３が当接する部位と、上蓋体２の上面に対して下蓋体１が当接する部位とが水平方向でずれている。このため、上蓋体２の外縁部が曲げ変形して筒形ケース３と上蓋体２との係合が浅くなり、コンテナ４が積み上げた状態で不安定になり得た。 By the way, the above-described conventional lower lid body 1 needs to have the same strength as a general-purpose pallet in consideration of a collision with a fork, friction with a floor surface, and the like. Cost increases. When the same manufacturing cost as that of a general-purpose pallet is applied to the lower lid 1 that cannot be used for other than the purpose of closing the lower surface opening of the cylindrical case 3, the cost effectiveness becomes worse. Further, in the above-described conventional lid body set, as shown in FIG. 14, the portion where the cylindrical case 3 abuts against the lower surface of the upper lid body 2 and the lower lid body 1 against the upper surface of the upper lid body 2. The part which touches is shifted in the horizontal direction. For this reason, the outer edge portion of the upper lid 2 is bent and deformed, the engagement between the cylindrical case 3 and the upper lid 2 becomes shallow, and the container 4 may become unstable in a stacked state.

本発明は、上記事情に鑑みてなされたもので、筒形ケースと蓋体セットとからなるコンテナを積み上げた状態で安定させることが可能であると共に、製造費用に対する費用対効果が従来より優れた蓋体セット及びコンテナの提供を目的とする。 The present invention has been made in view of the above circumstances, and it is possible to stabilize the container made up of the cylindrical case and the lid body set in a stacked state, and the cost effectiveness with respect to the manufacturing cost is superior to the conventional one. The purpose is to provide a lid set and a container.

上記目的を達成するためになされた請求項１の発明に係る蓋体セットは、両端開放の筒形ケースにおける上面開口及び下面開口を閉塞可能な上蓋体及び下蓋体からなる蓋体セットであって、筒形ケースと共に荷物搬送用のコンテナを構成し、フォークリフト用のパレットを介してコンテナを積み上げ可能とする蓋体セットにおいて、下蓋体の下面には、パレットの上面凹部と係合し、下蓋体をパレットに対して位置決め可能な下蓋パレット係合突部が形成され、下蓋体の上面には、その上に載置した筒形ケースの一部が下蓋体の下側のパレットにおける桁部の真上に位置したときに筒形ケースの下端部と係合し、筒形ケースを下蓋体に対して位置決め可能な下蓋ケース係合部が形成され、上蓋体の下面には、筒形ケースの上端部と係合し、上蓋体を筒形ケースに対して位置決め可能な上蓋ケース係合部が形成され、上蓋体の上面には、その上に載置したパレットの桁部における下面凹部と係合して、そのパレットを上蓋体に対して位置決め可能な上蓋桁部係合突部が、下側の筒形ケースの真上に形成されているところに特徴を有する。 In order to achieve the above object, a lid set according to the invention of claim 1 is a lid set including an upper lid and a lower lid capable of closing an upper surface opening and a lower surface opening in a cylindrical case having both ends open. In the lid set that constitutes a container for cargo transportation together with the cylindrical case, and allows the containers to be stacked via the pallet for forklift, the lower surface of the lower lid is engaged with the upper surface recess of the pallet, A lower lid pallet engaging projection that can position the lower lid with respect to the pallet is formed, and on the upper surface of the lower lid, a part of the cylindrical case placed thereon is located on the lower side of the lower lid. A lower lid case engaging portion is formed which engages with the lower end portion of the cylindrical case when positioned directly above the beam portion of the pallet, and can position the cylindrical case with respect to the lower lid body. Engage the upper end of the cylindrical case and An upper lid case engaging portion capable of positioning the body with respect to the cylindrical case is formed, and the upper surface of the upper lid body is engaged with the lower surface recess in the pallet portion of the pallet placed thereon, and the pallet is The upper lid girder engagement protrusion that can be positioned with respect to the body is characterized in that it is formed directly above the lower cylindrical case.

請求項２の発明は、請求項１に記載の蓋体セットにおいて、筒形ケースは、六角以上の偶数の角部を有する多角形で筒体であり、上蓋体及び下蓋体には、筒形ケースにおける複数の直線状先端縁が差し込まれる複数の直線状係合溝が、上蓋ケース係合部又は下蓋ケース係合部として形成され、複数の直線状係合溝は、幅広の直線状係合溝と幅狭の直線状係合溝とを交互に配置してなり、上蓋体と下蓋体との間で、幅広の直線状係合溝同士及び幅狭の直線状係合溝同士を対向配置したところに特徴を有する。 According to a second aspect of the present invention, in the lid set according to the first aspect, the cylindrical case is a polygonal cylinder having an even number of corners greater than or equal to a hexagon, and the upper lid and the lower lid are provided with a cylinder. A plurality of linear engagement grooves into which a plurality of linear tip edges are inserted are formed as an upper lid case engagement portion or a lower lid case engagement portion, and the plurality of linear engagement grooves are wide linear shapes. The engaging grooves and the narrow linear engaging grooves are alternately arranged, and the wide linear engaging grooves and the narrow linear engaging grooves are arranged between the upper lid body and the lower lid body. It has the characteristic in the place which faced.

請求項３の発明は、請求項１又は２に記載の蓋体セットにおいて、下蓋体に、筒形ケースの外側と内側に嵌合される下端外側嵌合突部と下端内側嵌合突部とを突出形成し、下端外側嵌合突部と下端内側嵌合突部との間を下蓋ケース係合部としてのケース下端係合溝とし、下端内側嵌合突部の溝内側面を、上下方向と略平行な直立面とする一方、下端内側嵌合突部の溝外側面を、上下方向に対して傾斜した傾斜面としたところに特徴を有する。 According to a third aspect of the present invention, in the lid set according to the first or second aspect, the lower end outer fitting protrusion and the lower end inner fitting protrusion are fitted to the outer side and the inner side of the cylindrical case on the lower lid body. And the lower end outer fitting protrusion and the lower end inner fitting protrusion as a case lower end engaging groove as a lower lid case engaging portion, and the groove inner side surface of the lower end inner fitting protrusion, While it is an upright surface substantially parallel to the vertical direction, the groove outer surface of the lower end inner fitting protrusion is characterized by an inclined surface inclined with respect to the vertical direction.

請求項４の発明は、請求項１乃至３の何れかに記載の蓋体セットにおいて、上蓋体に、筒形ケースの外側と内側に嵌合される上端外側嵌合突部と上端内側嵌合突部とを突出形成し、上端外側嵌合突部と上端内側嵌合突部との間を上蓋ケース係合部としてのケース上端係合溝とし、上端内側嵌合突部の溝内側面を、上下方向に対して傾斜した傾斜面としたところに特徴を有する。 According to a fourth aspect of the present invention, in the lid set according to any one of the first to third aspects, an upper end outer fitting protrusion and an upper end inner fitting are fitted to the upper lid on the outer side and the inner side of the cylindrical case. A protrusion is formed so that a case upper end engaging groove as an upper lid case engaging portion is formed between the upper end outer fitting protrusion and the upper inner fitting protrusion, and an inner surface of the upper inner fitting protrusion is defined as a groove inner side surface. It is characterized in that the surface is inclined with respect to the vertical direction.

請求項５の発明は、請求項１乃至４の何れかに記載の蓋体セットにおいて、上蓋体及び下蓋体は、樹脂シートの真空成形品であって、上蓋体及び下蓋体には、樹脂シートの外縁部を膨出させて閉じた環形状の環状外縁突部が形成され、環状外縁突部には、突出高さ及び幅が比較的小さい小膨出部と比較的大きい大膨出部とが交互に並べられて複数ずつ形成されているところに特徴を有する。 The invention of claim 5 is the lid set according to any one of claims 1 to 4, wherein the upper lid and the lower lid are vacuum molded products of a resin sheet, and the upper lid and the lower lid are A ring-shaped annular outer edge protrusion is formed by bulging the outer edge part of the resin sheet, and the annular outer edge protrusion has a small bulge part having a relatively small protrusion height and width and a relatively large bulge part. It is characterized in that a plurality of parts are alternately arranged to form a plurality.

請求項６の発明に係るコンテナは、請求項１乃至５の何れかに記載の蓋体セットと、筒形ケースとから構成されたところに特徴を有する。 The container which concerns on invention of Claim 6 has the characteristic in the place comprised from the cover body set in any one of Claim 1 thru | or 5, and a cylindrical case.

［請求項１の発明］
請求項１の蓋体セットでは、下蓋体をパレットの上に載置し、その下蓋体の上に筒形ケースを載置すると、筒形ケースの一部が下側のパレットにおける桁部の真上に位置決めされる。また、上蓋体を筒形ケースの上に載置すると、上蓋体の上面に備えた上蓋桁部係合突部が、下側の筒形ケースの真上に位置決めされる。さらに、上蓋体の上に別のパレットを載置すると、そのパレットの桁部における下面凹部に上蓋桁部係合突部が係合し、上側のパレットにおける桁部の一部が下側の筒形ケースの真上に位置決めされる。ここで、パレットの桁部は、パレットの上面と下面との間の全体に亘って延びかつパレットのうち上下方向の負荷に対して最も変形し難い部位である。そして、本発明の構成によれば、下蓋体のうちパレットの桁部にて真下から支持された部位で筒形ケースの荷重を支持すると共に、上蓋体のうち筒形ケースにて真下から支持された部位で上側のパレットの桁部を支持することになる。これにより、下蓋体及び上蓋体には曲げ応力がかかり難くなり、下蓋体及び上蓋体の変形が防がれる。しかも、上蓋体とその上のパレットの間では、そのパレットのうち最も変形し難いために最も強く上蓋体に押し付けられる桁部の下面凹部と、上蓋体のうち筒形ケースにて支持されて変形し難い位置に配置された上蓋桁部係合突部とが凹凸係合するので、上蓋体とその上側のパレットとの位置決めの信頼性が高くなる。これらにより、筒形ケースと蓋体セットとからなるコンテナを、積み上げた状態で安定させることができる。また、本発明の構成によれば、下蓋体がパレットと別々になっているので、下蓋体を外した状態のパレットを、汎用のパレットとして使用することができ、パレットの有効利用が図られる。即ち、本発明の構成によれば、下蓋体とパレットの製造コストの合計に対する費用対効果が、下蓋体とパレットとを一体化した従来品の製造コストに対する費用対効果に比べて向上する。 [Invention of Claim 1]
In the lid set according to claim 1, when the lower lid is placed on the pallet and the cylindrical case is placed on the lower lid, a part of the cylindrical case becomes a girder portion in the lower pallet. Is positioned directly above. Further, when the upper lid is placed on the cylindrical case, the upper lid girder engagement protrusion provided on the upper surface of the upper lid is positioned directly above the lower cylindrical case. Furthermore, when another pallet is placed on the upper lid, the upper lid girder engagement protrusion engages with the lower surface recess of the pallet of the pallet, and a part of the girder of the upper pallet is the lower cylinder. Positioned directly above the case. Here, the girder part of the pallet is the part that extends over the entire area between the upper surface and the lower surface of the pallet and is most difficult to deform with respect to the load in the vertical direction of the pallet. And according to the structure of this invention, while supporting the load of a cylindrical case in the site | part supported from directly under the pallet girder part of the lower cover body, it supports from right under the cylindrical case among upper cover bodies. The girders of the upper pallet will be supported by the formed part. This makes it difficult for bending stress to be applied to the lower lid body and the upper lid body, thereby preventing deformation of the lower lid body and the upper lid body. Moreover, between the upper lid and the pallet on the upper lid, the lower surface recess of the girder that is most strongly pressed against the upper lid because it is the least difficult to deform, and the upper lid is supported by the cylindrical case and deformed. Since the upper lid girder engagement protrusions that are arranged at difficult positions engage with each other, the positioning reliability between the upper lid and the upper pallet is increased. By these, the container which consists of a cylindrical case and a cover body set can be stabilized in the piled-up state. Further, according to the configuration of the present invention, since the lower lid is separate from the pallet, the pallet with the lower lid removed can be used as a general-purpose pallet, and the pallet can be effectively used. It is done. That is, according to the configuration of the present invention, the cost effectiveness with respect to the total manufacturing cost of the lower lid and the pallet is improved as compared with the cost effectiveness with respect to the manufacturing cost of the conventional product in which the lower lid and the pallet are integrated. .

［請求項２の発明］
請求項２の構成では、多角形の筒形ケースにおける複数の直線状先端縁が、上蓋体及び下蓋体にそれぞれ形成された複数の直線状係合溝にそれぞれ差し込まれる。ここで、複数の直線状係合溝は、幅広の直線状係合溝と幅狭の直線状係合溝とを交互に配置してなるので、筒形ケースにおける各直線状先端縁の長さがばらついても、そのばらつきを幅広の直線状係合溝で吸収することができると共に、幅狭の直線状係合溝で筒形ケースを位置決めして筒形ケースと上蓋体及び下蓋体との間のガタを無くすことができる。即ち、本発明の構成によれば、位置決め機能を確保しつつ、筒形ケースの形状のばらつきを吸収することができる。 [Invention of claim 2]
In the configuration of the second aspect, the plurality of linear tip edges in the polygonal cylindrical case are respectively inserted into the plurality of linear engagement grooves respectively formed in the upper lid body and the lower lid body. Here, since the plurality of linear engagement grooves are formed by alternately arranging the wide linear engagement grooves and the narrow linear engagement grooves, the length of each linear tip edge in the cylindrical case Even if there is variation, the variation can be absorbed by the wide linear engaging groove, and the cylindrical case is positioned by the narrow linear engaging groove, and the cylindrical case, the upper lid body, and the lower lid body. The play between the two can be eliminated. That is, according to the configuration of the present invention, it is possible to absorb variations in the shape of the cylindrical case while ensuring the positioning function.

［請求項３の発明］
請求項３の蓋体セットでは、筒形ケースの下端部が、下蓋体に備えた下端外嵌合突部と下端内側嵌合突部との間のケース下端係合溝に嵌合される。ここで、下端内側嵌合突部の溝内側面は、上下方向と略平行な直立面になっているので、下端内側嵌合突部による筒形ケースの位置決め精度が高くなる。また、下端内側嵌合突部の溝外側面は、上下方向に対して傾斜した傾斜面になっているので、筒形ケース内に収容した荷物が、下端内側嵌合突部の角部が当接して損傷する事態を回避することができる。 [Invention of claim 3]
In the lid body set of claim 3, the lower end portion of the cylindrical case is fitted into the case lower end engaging groove between the lower end outer fitting projection and the lower end inner fitting projection provided in the lower lid. . Here, since the inner surface of the groove of the lower inner fitting protrusion is an upright surface substantially parallel to the vertical direction, the positioning accuracy of the cylindrical case by the lower inner fitting protrusion is increased. In addition, since the groove outer surface of the lower inner fitting protrusion is an inclined surface inclined with respect to the vertical direction, the load accommodated in the cylindrical case is contacted with the corner of the lower inner fitting protrusion. It is possible to avoid the situation of contact and damage.

［請求項４の発明］
請求項４の蓋体セットによれば、筒形ケースの上端部が、上蓋体に備えた上端外側嵌合突部と上端内側嵌合突部との間のケース上端係合溝に嵌合される。ここで、筒形ケースの上端部の一部が上蓋体の中央寄りにずれても、上端内側嵌合突部の溝内側面は上下方向に対して傾斜した傾斜面になっているので、その傾斜面と筒形ケースの上端部との摺接によりずれが修正される。これにより、筒形ケースの上面に上蓋体を組み付ける作業が容易になる。 [Invention of claim 4]
According to the lid body set of claim 4, the upper end portion of the cylindrical case is fitted into the case upper end engaging groove between the upper end outer fitting protrusion and the upper end inner fitting protrusion provided in the upper lid. The Here, even if a part of the upper end portion of the cylindrical case is displaced toward the center of the upper lid body, the inner surface of the groove of the upper end inner fitting protrusion is an inclined surface inclined with respect to the vertical direction. The deviation is corrected by sliding contact between the inclined surface and the upper end of the cylindrical case. Thereby, the operation | work which attaches an upper cover body to the upper surface of a cylindrical case becomes easy.

［請求項５の発明］
請求項５の蓋体セットでは、上蓋体及び下蓋体が樹脂シートの真空成形品であり、樹脂シートの外縁部に膨出形成された環状外縁突部が、突出高さ及び幅が比較的小さい小膨出部と比較的大きい大膨出部とを交互に並べた構成になっているので、それら小膨出部と大膨出部との段差部分が、環状外縁突部の先端面及び側面に対して直角曲げされた補強壁の役割を果たし、環状外縁突部の強度アップが図られる。 [Invention of claim 5]
In the lid body set according to claim 5, the upper lid body and the lower lid body are vacuum molded products of the resin sheet, and the annular outer edge protrusion bulged on the outer edge portion of the resin sheet has a relatively high protrusion height and width. Since the small bulges and the relatively large bulges are arranged alternately, the step between the small bulges and the large bulges is the tip of the annular outer edge projection and It plays the role of a reinforcing wall bent at right angles to the side surface, and the strength of the annular outer edge protrusion is increased.

［請求項６の発明］
請求項６のコンテナは、請求項１乃至５の何れかに記載の蓋体セットと、筒形ケースとから構成されているので、積み上げた状態で従来より安定させることができる。 [Invention of claim 6]
Since the container of Claim 6 is comprised from the cover body set in any one of Claims 1 thru | or 5, and a cylindrical case, it can be stabilized from the past in the piled-up state.

以下、本発明の一実施形態を図１〜図１１に基づいて説明する。図１に示すように、本実施形態のコンテナ３０は、筒形ケース４０と蓋体セット５０とからなり、その蓋体セット５０は、上蓋体５１と下蓋体６１とからなる。また、コンテナ３０は、パレット１０を介して積み上げ可能となっている。 Hereinafter, an embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, the container 30 of the present embodiment includes a cylindrical case 40 and a lid body set 50, and the lid body set 50 includes an upper lid body 51 and a lower lid body 61. The container 30 can be stacked via the pallet 10.

図２及び図３には、パレット１０の詳細構造の一例が示されている。このパレット１０は、樹脂の射出成形品であって、平面略正方形のデッキボード１１の下面に複数の桁部２０を備え、それら桁部２０，２０同士の間がフォーク挿入空間１４になっている。図２に示すように、デッキボード１１には、その外縁部と縦横の中心線とに沿った部位に、比較的強度が大きな上面強化梁１２が備えられ、デッキボード１１の全体で上面強化梁１２が「田」の字形状になっている。そして、上面強化梁１２に囲まれた四角形の４つの領域がそれぞれ荷受盤１３にて塞がれている。 2 and 3 show an example of the detailed structure of the pallet 10. The pallet 10 is an injection molded product of resin, and includes a plurality of girders 20 on the lower surface of a substantially square deck board 11, and a fork insertion space 14 is formed between the girders 20 and 20. . As shown in FIG. 2, the deck board 11 is provided with a top reinforcing beam 12 having relatively high strength at a portion along the outer edge portion and vertical and horizontal center lines. 12 is the shape of a “field”. Then, four rectangular areas surrounded by the upper surface reinforcing beam 12 are respectively closed by the receiving tray 13.

桁部２０は、デッキボード１１のうち上面強化梁１２同士の交差位置に配置されている。即ち、桁部２０は、デッキボード１１の四隅と、デッキボード１１の各外縁部における各中央部と、デッキボード１１の平面形状における図心との計９箇所に配置されている。また、図３に示すように、縦横の何れかの方向で隣り合った桁部２０，２０の下端部の間には、下面強化梁１５が差し渡され、その下面強化梁１５も全体が「田」の字形状になっている。なお、下面強化梁１５に囲まれた四角形の４つの領域には、荷受盤１３に相当する構造体はなく、単なる空間になっている。 The girder 20 is disposed at the intersection of the upper reinforcing beams 12 in the deck board 11. That is, the girder 20 is disposed at a total of nine locations including the four corners of the deck board 11, each central portion at each outer edge of the deck board 11, and the centroid in the planar shape of the deck board 11. Further, as shown in FIG. 3, the bottom reinforcing beam 15 is passed between the lower ends of the beam portions 20, 20 that are adjacent in either the vertical or horizontal direction. It has the shape of a rice field. Note that there are no structures corresponding to the cargo receiving tray 13 in the four rectangular areas surrounded by the lower-surface reinforcing beam 15, which are mere spaces.

パレット１０は、上下方向に開放した複数の網の目を有するメッシュ構造になっている。以下、メッシュ構造のうち上蓋体５１と下蓋体６１との係合に係る部位に関して説明する。図２に示すように、パレット１０の上面強化梁１２のうち「十」の字状に交差した部分の桁部２０と、「十」の字の４つの各先端に位置した桁部２０との間を連絡する各部位には、それぞれ３つずつの梁溝１６が形成されている。それら３つの梁溝１６は、上面強化梁１２の長手方向に沿って延びかつ上面強化梁１２の幅方向で横並びになっている。また、上面強化梁１２のうちデッキボード１１の外縁部に沿って延び、桁部２０，２０の間に連絡された各部位は、格子構造になっており、長方形の複数の格子孔１８を有している。荷受盤１３も格子構造になっており、複数の正方形の格子孔１９を有している。 The pallet 10 has a mesh structure having a plurality of meshes opened in the vertical direction. Hereinafter, the part which concerns on engagement with the upper cover body 51 and the lower cover body 61 among mesh structures is demonstrated. As shown in FIG. 2, the spar portion 20 of the top reinforcing beam 12 of the pallet 10 that intersects the “ten” shape and the spar portion 20 positioned at each of the four “ten” tips. Three beam grooves 16 are formed in each part that communicates with each other. The three beam grooves 16 extend along the longitudinal direction of the upper surface reinforcing beam 12 and are arranged side by side in the width direction of the upper surface reinforcing beam 12. Each portion of the upper reinforcing beam 12 that extends along the outer edge of the deck board 11 and communicates between the beam portions 20 and 20 has a lattice structure and has a plurality of rectangular lattice holes 18. is doing. The load receiving board 13 also has a lattice structure, and has a plurality of square lattice holes 19.

各桁部２０は、パレット１０の上面と下面との間の全体に亘って延びた四角形の筒壁２１の内部に補強リブを備えた構造になっている。また、パレット１０の四辺の外縁部中央にそれぞれ配置された４つの各桁部２０の上面には、パレット１０の中央寄り位置に３つの桁上面溝１７が平行に配置して備えられ、それら各桁部２０の下面には、図３に示すように、パレット１０の中央寄り位置に２つの桁下面溝２３が平行に配置して備えられている。さらに、パレット１０のうち四隅の各桁部２０の下面における中央寄りの角部には、五角形の桁部係合孔２４が備えられている。 Each girder 20 has a structure in which a reinforcing rib is provided inside a rectangular tube wall 21 extending over the entire area between the upper surface and the lower surface of the pallet 10. Further, on the upper surface of each of the four girder portions 20 respectively arranged at the center of the outer edge of each of the four sides of the pallet 10, three girder upper surface grooves 17 are arranged in parallel to the central position of the pallet 10. As shown in FIG. 3, two girder lower surface grooves 23 are arranged on the lower surface of the girder portion 20 in parallel with each other at a position closer to the center of the pallet 10. Furthermore, a pentagonal girder engagement hole 24 is provided at a corner near the center of the bottom surface of each girder 20 at the four corners of the pallet 10.

図１に示すように、筒形ケース４０は、例えば、平面形状が八角形で上下両端が開放した筒形構造になっている。その八角形は、４つの同一長さの短辺と４つの同一長さの長辺とを交互に配置して構成されている。また、この筒形ケース４０は、段ボールを折り曲げてなり、隣り合った折り曲げ線の間が前記した長辺に相当する幅広壁４１か、又は、前記した短辺に相当する幅狭壁４２になっている。 As shown in FIG. 1, the cylindrical case 40 has, for example, a cylindrical structure in which a planar shape is an octagon and both upper and lower ends are open. The octagon is configured by alternately arranging four short sides having the same length and four long sides having the same length. In addition, the cylindrical case 40 is formed by bending cardboard, and a space between adjacent folding lines becomes a wide wall 41 corresponding to the long side described above or a narrow wall 42 corresponding to the short side described above. ing.

図１に示すように、下蓋体６１は、筒形ケース４０の端面形状の対応した八角形の平板体に凹凸を設けた構造になっている。また、下蓋体６１は、樹脂シートの真空成形品であって、表裏両面のうち一方の面の突部は他方の面の凹部になり、一方の面の凹部は他方の面の突部になっている。詳細には、図７（Ａ）及び図７（Ｃ）に示すように、下蓋体６１の上面には、外縁部全体を上方に膨出させて外側環状嵌合突部６２（本発明の「下端外側嵌合突部」と「環状外縁突部」に相当する）が形成されている。この外側環状嵌合突部６２は、筒形ケース４０の平面形状と同様に４つの短辺と４つの長辺とが交互に配置された八角形の閉じた環状をなしている。また、図７（Ｂ）に示すように、外側環状嵌合突部６２には、突出高さ及び幅が共に比較的大きい大膨出部６２Ａと突出高さ及び幅が共に比較的小さい小膨出部６２Ｂとが交互に並べられて複数ずつ形成されている。そして、小膨出部６２Ｂが、外側環状嵌合突部６２のうち八角形の各短辺部分における中央に１つずつ配置されると共に、外側環状嵌合突部６２のうち八角形の各長辺部分の５箇所に等間隔に配置され、小膨出部６２Ｂ以外の部分は大膨出部６２Ａになっている。 As shown in FIG. 1, the lower lid 61 has a structure in which irregularities are provided on an octagonal flat plate corresponding to the end face shape of the cylindrical case 40. The lower lid 61 is a vacuum-formed product of a resin sheet, and one of the front and back surfaces has a protrusion on one surface that is a recess on the other surface, and the recess on one surface is a protrusion on the other surface. It has become. Specifically, as shown in FIGS. 7 (A) and 7 (C), the entire outer edge portion is bulged upward on the upper surface of the lower lid 61 and the outer annular fitting protrusion 62 (of the present invention). "Lower end outer fitting protrusion" and "annular outer edge protrusion" are formed). The outer annular fitting protrusion 62 has an octagonal closed annular shape in which four short sides and four long sides are alternately arranged, like the planar shape of the cylindrical case 40. Further, as shown in FIG. 7B, the outer annular fitting protrusion 62 has a large bulging portion 62A having a relatively large protrusion height and width and a small bulge having a relatively small protrusion height and width. A plurality of the protruding portions 62B are alternately arranged and formed. And the small bulging part 62B is arrange | positioned 1 each in the center in each short side part of an octagon among the outer side annular fitting protrusions 62, and each octagonal length among the outer side annular fitting protrusions 62 It is arrange | positioned at equal intervals at five places of a side part, and parts other than the small bulging part 62B become the large bulging part 62A.

詳細には、図６に示すように、小膨出部６２Ｂの高さは大膨出部６２Ａの高さの略６〜７割程度になっている。また、小膨出部６２Ｂの幅は大膨出部６２Ａの幅の略５〜６割程度になっており、小膨出部６２Ｂの内外の両側面が、大膨出部６２Ａの内外の両側面に対して陥没している。そして、小膨出部６２Ｂと大膨出部６２Ａとの間が、門形の段差壁６２Ｃになっている。段差壁６２Ｃは、大膨出部６２Ａ及び小膨出部６２Ｂの内外両側面と上面とに対して直角曲げされた補強壁の役割を果たし、外側環状嵌合突部６２の強度アップが図られている。また、外側環状嵌合突部６２のうち八角形の各長辺部分において小膨出部６２Ｂ，６２Ｂに両側を挟まれた大膨出部６２Ａの外側面には、上下方向に延びた外側凹部６２Ｖが陥没形成されている。そして、この外側凹部６２Ｖの両側の段差部によって大膨出部６２Ａの強度アップが図られている。 Specifically, as shown in FIG. 6, the height of the small bulge portion 62B is approximately 60 to 70% of the height of the large bulge portion 62A. Further, the width of the small bulging portion 62B is about 50 to 60% of the width of the large bulging portion 62A, and both the inner and outer side surfaces of the small bulging portion 62B are both the inner and outer sides of the large bulging portion 62A. It is depressed with respect to the surface. A gate-shaped step wall 62C is formed between the small bulging portion 62B and the large bulging portion 62A. The stepped wall 62C serves as a reinforcing wall that is bent at right angles to the inner and outer side surfaces and the upper surface of the large bulging portion 62A and the small bulging portion 62B, thereby increasing the strength of the outer annular fitting protrusion 62. ing. Further, an outer concave portion extending in the vertical direction is formed on the outer surface of the large bulging portion 62A sandwiched between the small bulging portions 62B and 62B in each octagonal long side portion of the outer annular fitting projection 62. 62V is depressed. And the intensity | strength improvement of 62 A of large bulge parts is achieved by the level | step-difference part of the both sides of this outer side recessed part 62V.

図７（Ａ）及び図７（Ｃ）に示すように、下蓋体６１の上面には、外側環状嵌合突部６２の内側に内側環状嵌合突部６３が（本発明の「下端内側嵌合突部」に相当する）形成されている。この内側環状嵌合突部６３も下蓋体６１と同様に４つの短辺と４つの長辺とが交互に配置された八角形の閉じた環状をなしている。そして、図５に示すように、外側環状嵌合突部６２と内側環状嵌合突部６３との間はケース下端係合溝６１Ｍになっており、ここに筒形ケース４０の下端部が差し込まれて、下蓋体６１が筒形ケース４０の下面開口を閉塞する。ここで、図７（Ａ）に示すように、ケース下端係合溝６１Ｍを、筒形ケース４０の先端部における八角形の短辺部分が挿入される短辺用の直線状係合溝６１Ｔと、筒形ケース４０の先端部における八角形の長辺部分が挿入される長辺用の直線状係合溝６１Ｃとに区分すると、短辺用の直線状係合溝６１Ｔは、長辺用の直線状係合溝６１Ｃより幅広（例えば、略３倍の広さ）になっている。即ち、短辺用の直線状係合溝６１Ｔにおける外側環状嵌合突部６２と内側環状嵌合突部６３との間隔は、長辺用の直線状係合溝６１Ｃにおける外側環状嵌合突部６２と内側環状嵌合突部６３との間隔より大きくなっている。また、図６に示すように、内側環状嵌合突部６３のうちケース下端係合溝６１Ｍの内側の溝内側面は、上下方向と略平行な直立面６３Ａになっている。一方、内側環状嵌合突部６３のうちケース下端係合溝６１Ｍの外側の溝外側面は、上下方向に対して全体が凹状に丸みを帯びて傾斜した傾斜面６３Ｂになっている。また、内側環状嵌合突部６３の上端部は円弧状になって直立面６３Ａと傾斜面６３Ｂとの間を連絡している。なお、下蓋体６１の下面においては、外側環状嵌合突部６２及び内側環状嵌合突部６３の裏側は環状溝６２Ｍ，６３Ｍになっている。 As shown in FIGS. 7A and 7C, the upper surface of the lower lid 61 has an inner annular fitting protrusion 63 on the inner side of the outer annular fitting protrusion 62 (the “lower end inner side of the present invention”). (Corresponding to a “fitting protrusion”). Similarly to the lower lid body 61, the inner annular fitting protrusion 63 has an octagonal closed annular shape in which four short sides and four long sides are alternately arranged. As shown in FIG. 5, a case lower end engaging groove 61M is formed between the outer annular fitting projection 62 and the inner annular fitting projection 63, and the lower end portion of the cylindrical case 40 is inserted therein. Accordingly, the lower lid 61 closes the lower surface opening of the cylindrical case 40. Here, as shown in FIG. 7 (A), the case lower end engaging groove 61M includes a short side linear engaging groove 61T into which the octagonal short side portion at the tip of the cylindrical case 40 is inserted. When the long side portion of the octagon at the tip of the cylindrical case 40 is divided into the long side linear engagement groove 61C, the short side linear engagement groove 61T is used for the long side. It is wider than the linear engaging groove 61C (for example, approximately three times as wide). That is, the distance between the outer annular fitting protrusion 62 and the inner annular fitting protrusion 63 in the short side linear engaging groove 61T is equal to the outer annular fitting protrusion 61C in the long side linear engaging groove 61C. It is larger than the distance between 62 and the inner annular fitting projection 63. As shown in FIG. 6, the inner surface of the inner annular fitting protrusion 63 inside the case lower end engaging groove 61M is an upright surface 63A substantially parallel to the vertical direction. On the other hand, the outer surface of the inner annular fitting protrusion 63 outside the case lower end engaging groove 61M is an inclined surface 63B that is rounded and inclined in a concave shape with respect to the vertical direction. Moreover, the upper end part of the inner side annular fitting protrusion 63 becomes circular arc shape, and has communicated between the upright surface 63A and the inclined surface 63B. Note that, on the lower surface of the lower lid 61, the back sides of the outer annular fitting projection 62 and the inner annular fitting projection 63 are annular grooves 62M and 63M.

図４に示すように、下蓋体６１は、パレット１０の上面に載置される。このとき、下蓋体６１の平面形状である八角形の図心と、パレット１０の平面形状である正方形の図心とを一致させると共に、下蓋体６１の八角形の長辺とパレット１０の四角形の各辺とが平行になるように配置すると、下蓋体６１の下面の突部がパレット１０の上面の凹部に係合して下蓋体６１がパレット１０の上面の縦横両方向で位置決めされる。 As shown in FIG. 4, the lower lid 61 is placed on the upper surface of the pallet 10. At this time, the octagonal centroid which is the planar shape of the lower lid 61 and the square centroid which is the planar shape of the pallet 10 are matched, and the long side of the octagon of the lower lid 61 and the pallet 10 When arranged so that each side of the quadrangle is parallel, the protrusion on the lower surface of the lower lid 61 is engaged with the recess on the upper surface of the pallet 10 so that the lower lid 61 is positioned in both the vertical and horizontal directions on the upper surface of the pallet 10. The

具体的には、図７（Ａ）〜図７（Ｃ）に示すように、下蓋体６１の下面には、平面形状である八角形の各長辺の中央部と図心との連絡する帯状領域に、突条構造の第１の下蓋パレット係合突部６４が３つ横並びなってそれぞれ突出形成され、これら第１の下蓋パレット係合突部６４が、図２に示したパレット１０の各梁溝１６に凹凸係合する。 Specifically, as shown in FIGS. 7A to 7C, the bottom surface of the lower lid 61 communicates with the center of each long side of the octagon that is a planar shape and the centroid. Three first lower lid pallet engaging projections 64 having a ridge structure are juxtaposed in the belt-like region, and these first lower lid pallet engaging projections 64 are formed in the pallet shown in FIG. Uneven engagement with each of the ten beam grooves 16 is achieved.

また、図７（Ａ）〜図７（Ｃ）に示すように、下蓋体６１の下面には、平面形状である八角形のうち各長辺部分の中央における環状溝６３Ｍ（内側環状嵌合突部６３）の内側近傍に、平面形状が長方形の角柱状になった第２の下蓋パレット係合突部６５が２つずつ突出形成されている。そして、これら第２の下蓋パレット係合突部６５が、図２に示したパレット１０における桁上面溝１７に係合する。 Further, as shown in FIGS. 7A to 7C, an annular groove 63 M (inner annular fitting) in the center of each long side portion of the octagon that is planar is formed on the lower surface of the lower lid body 61. In the vicinity of the inside of the protrusion 63), two second lower lid pallet engaging protrusions 65 each having a rectangular prism shape in plan view are formed to protrude. And these 2nd lower lid pallet engagement protrusions 65 engage with the girder upper surface groove | channel 17 in the pallet 10 shown in FIG.

また、図７（Ａ）〜図７（Ｃ）に示すように、下蓋体６１の下面には、第１の下蓋パレット係合突部６４群によって仕切られた４つの領域に、平面形状が正方形の角柱状になった複数の第３の下蓋パレット係合突部６６が、正方形の環状に並べて突出形成されている。そして、これら第３の下蓋パレット係合突部６６が、図２に示したパレット１０における格子孔１９に係合する。 Further, as shown in FIGS. 7A to 7C, the lower surface of the lower lid body 61 has a planar shape in four regions partitioned by the first lower lid pallet engaging protrusions 64 group. A plurality of third lower lid pallet engaging protrusions 66 each having a square prism shape are formed so as to protrude side by side in a square ring shape. These third lower lid pallet engaging protrusions 66 engage with the lattice holes 19 in the pallet 10 shown in FIG.

さらに、図７（Ａ）〜図７（Ｃ）に示すように、下蓋体６１の下面には、第３の下蓋パレット係合突部６６群と環状溝６３Ｍ（内側環状嵌合突部６３）との間に、平面形状が比較的小さな長方形の角柱状になった複数の第４の下蓋パレット係合突部６７が突出形成されている。そして、これら第４の下蓋パレット係合突部６７が、図１に示したパレット１０における格子孔１８に係合する。 Further, as shown in FIGS. 7A to 7C, on the lower surface of the lower lid body 61, a third lower lid pallet engaging projection 66 group and an annular groove 63M (inner annular fitting projection) are formed. 63), a plurality of fourth lower lid pallet engaging protrusions 67 are formed so as to protrude in a rectangular prism shape having a relatively small planar shape. These fourth lower lid pallet engaging protrusions 67 engage with the lattice holes 18 in the pallet 10 shown in FIG.

図１に示した上蓋体５１は、下蓋体６１と同様に、樹脂シートの真空成形品であって、筒形ケース４０の端面形状の対応した八角形の平板体に凹凸を設けた構造になっている。図９（Ａ）及び図９（Ｃ）に示すように、上蓋体５１の下面には、下蓋体６１の外側環状嵌合突部６２と同形状の外側環状嵌合突部５２（本発明の「上端外側嵌合突部」と「環状外縁突部」に相当する）が形成されている。また、図９（Ｂ）に示すように、外側環状嵌合突部５２にも大膨出部５２Ａと小膨出部５２Ｂとが交互に並べられて備えられ、大膨出部５２Ａの外側面には外側凹部５２Ｖが陥没形成されている。 The upper lid body 51 shown in FIG. 1 is a resin sheet vacuum-formed product, similar to the lower lid body 61, and has a structure in which irregularities are provided on the octagonal flat plate corresponding to the end face shape of the cylindrical case 40. It has become. As shown in FIGS. 9A and 9C, an outer annular fitting projection 52 having the same shape as the outer annular fitting projection 62 of the lower lid 61 is formed on the lower surface of the upper lid 51 (the present invention). Corresponding to “upper end outer fitting protrusion” and “annular outer edge protrusion”. Further, as shown in FIG. 9B, the outer annular fitting projection 52 is also provided with large bulging portions 52A and small bulging portions 52B arranged alternately, and the outer surface of the large bulging portion 52A. The outer concave portion 52V is recessed.

上蓋体５１の下面には、外側環状嵌合突部５２の内側に内側環状嵌合突部５３（本発明の「上端内側嵌合突部」に相当する）が形成されている。この内側環状嵌合突部５３は、外側環状嵌合突部５２と同様に４つの短辺と４つの長辺とが交互に配置された八角形をなしている。また、内側環状嵌合突部５３の各短辺部分は、中央部分が所定長だけ途切れている。 On the lower surface of the upper lid 51, an inner annular fitting protrusion 53 (corresponding to the “upper inner fitting protrusion” of the present invention) is formed inside the outer annular fitting protrusion 52. Like the outer annular fitting protrusion 52, the inner annular fitting protrusion 53 has an octagonal shape in which four short sides and four long sides are alternately arranged. Further, each short side portion of the inner annular fitting protrusion 53 has a center portion that is interrupted by a predetermined length.

外側環状嵌合突部５２と内側環状嵌合突部５３との間はケース上端係合溝５１Ｍになっており、ここに筒形ケース４０の上端部が差し込まれて、上蓋体５１が筒形ケース４０の上面開口を閉塞する。このケース上端係合溝５１Ｍも、下蓋体６１のケース下端係合溝６１Ｍと同様に、図９（Ａ）に示すように、短辺用の直線状係合溝５１Ｔと長辺用の直線状係合溝５１Ｃとに区分すると、短辺用の直線状係合溝５１Ｔは、長辺用の直線状係合溝５１Ｃより幅広（例えば、略３倍の広さ）になっている。 A case upper end engaging groove 51M is formed between the outer annular fitting projection 52 and the inner annular fitting projection 53, and the upper end portion of the cylindrical case 40 is inserted into the case, so that the upper lid 51 is cylindrical. The upper surface opening of the case 40 is closed. Similarly to the case lower end engaging groove 61M of the lower lid 61, the case upper end engaging groove 51M also has a short side linear engaging groove 51T and a long side straight line as shown in FIG. When divided into the straight engagement grooves 51C, the short side straight engagement grooves 51T are wider (for example, approximately three times wider) than the long side straight engagement grooves 51C.

図６に示すように、内側環状嵌合突部５３のうちケース上端係合溝５１Ｍの内側の溝内側面は、上下方向に対して全体が傾斜した傾斜面５３Ａになっている。また、内側環状嵌合突部５３のうちケース上端係合溝５１Ｍの外側の溝外側面は、上下方向に対して平行になった直立面５３Ｂになっている。なお、上蓋体５１の上面においては、外側環状嵌合突部５２及び内側環状嵌合突部５３の裏側は環状溝５２Ｍ，５３Ｍになっている。 As shown in FIG. 6, the groove inner surface inside the case upper end engaging groove 51 M of the inner annular fitting protrusion 53 is an inclined surface 53 A that is entirely inclined with respect to the vertical direction. In addition, the outer surface of the inner annular fitting protrusion 53 outside the case upper end engaging groove 51M is an upright surface 53B that is parallel to the vertical direction. Note that, on the upper surface of the upper lid 51, the back sides of the outer annular fitting projection 52 and the inner annular fitting projection 53 are annular grooves 52M and 53M.

図４に示すように、上蓋体５１の上面には、パレット１０が載置される。このとき、上蓋体５１の平面形状である八角形の図心と、パレット１０の平面形状である正方形の図心とを一致させると共に、上蓋体５１の八角形の長辺とパレット１０の四角形の各辺とが平行になるように配置すると、上蓋体５１の上面の突部がパレット１０の下面の凹部に係合して上蓋体５１がパレット１０の上面の縦横両方向で位置決めされる。 As shown in FIG. 4, the pallet 10 is placed on the upper surface of the upper lid 51. At this time, the octagonal centroid which is the planar shape of the upper lid 51 and the square centroid which is the planar shape of the pallet 10 are matched, and the long side of the octagon of the upper lid 51 and the rectangular shape of the pallet 10 are If it arrange | positions so that each side may become parallel, the protrusion of the upper surface of the upper cover body 51 engages with the recessed part of the lower surface of the pallet 10, and the upper cover body 51 is positioned in the vertical and horizontal directions of the upper surface of the pallet 10.

具体的には、上蓋体５１の上面には、平面形状の八角形のうち各長辺の中央部のうち環状溝５３Ｍ（内側環状嵌合突部５３）より若干内側部分に、平面形状が長方形の角柱状になった第１の上蓋パレット係合突部５４がそれぞれ突出形成されている。そして、これら第１の上蓋パレット係合突部５４がパレット１０の下面における桁下面溝２３に係合する。 Specifically, on the upper surface of the upper lid 51, the planar shape is a rectangular shape slightly inside the annular groove 53 M (inner annular fitting protrusion 53) in the central part of each long side of the planar octagon. Each of the first upper lid pallet engaging protrusions 54 is formed in a protruding shape. These first upper lid pallet engaging protrusions 54 are engaged with the girder lower surface groove 23 on the lower surface of the pallet 10.

また、上蓋体５１の上面のうちケース上端係合溝５１Ｍの裏面側に相当する部分には、平面形状の八角形のうち各短辺の中央部位置に、平面形状が五角形の角柱状になった第２の上蓋パレット係合突部５５（本発明の「上蓋桁部係合突部」に相当する）が突出形成されている。そして、各第２の上蓋パレット係合突部５５が、パレット１０の下面における桁部係合孔２４に係合する。 Further, a portion of the upper surface of the upper lid 51 corresponding to the rear surface side of the case upper end engaging groove 51M is a prismatic prism having a pentagonal shape in the center of each short side of the octagonal shape. Further, a second upper lid pallet engaging protrusion 55 (corresponding to the “upper cover beam portion engaging protrusion” of the present invention) is formed to protrude. Then, each second upper lid pallet engagement protrusion 55 engages with the beam portion engagement hole 24 on the lower surface of the pallet 10.

さらに、上蓋体５１の上面には、図３に示したパレット１０の下面のうち下面強化梁１５に囲まれた四角形の４つの空間に嵌合可能な４つの第１の上蓋パレット係合突部５６が備えられている。 Further, on the upper surface of the upper lid 51, four first upper lid pallet engaging protrusions that can be fitted into four rectangular spaces surrounded by the lower surface reinforcing beam 15 among the lower surface of the pallet 10 shown in FIG. 3. 56 is provided.

本実施形態の蓋体セット５０及びコンテナ３０の構成に関する説明は以上である。次に、蓋体セット５０及びコンテナ３０の作用効果について説明する。 The description about the structure of the cover body set 50 and the container 30 of this embodiment is above. Next, the operational effects of the lid set 50 and the container 30 will be described.

図４に示すように、本実施形態の蓋体セット５０のうち下蓋体６１をパレット１０の上に載置すると、下蓋体６１の下面の第１〜第４の下蓋パレット係合突部６４〜６７が下側のパレット１０の上面に備えた梁溝１６、桁上面溝１７等（図２参照）の凹部に凹凸係合し、下蓋体６１がパレット１０に対して位置決めされる。 As shown in FIG. 4, when the lower lid body 61 is placed on the pallet 10 in the lid body set 50 of the present embodiment, the first to fourth lower lid pallet engaging protrusions on the lower surface of the lower lid body 61. The parts 64 to 67 engage with the recesses of the beam groove 16 and the girder upper surface groove 17 (see FIG. 2) provided on the upper surface of the lower pallet 10, and the lower lid 61 is positioned with respect to the pallet 10. .

次いで、図５に示すように、下蓋体６１を上に筒形ケース４０を載置すると、下蓋体６１の上面におけるケース下端係合溝６１Ｍに筒形ケース４０の下端部が嵌合し、下蓋体６１に対して筒形ケース４０が位置決めされる。そして、筒形ケース４０の一部が、下蓋体６１を介して、下側のパレット１０における外縁部に配置された８つの桁部２０（図２参照）の真上に位置決めされる。 Next, as shown in FIG. 5, when the cylindrical case 40 is placed on the lower lid 61, the lower end of the cylindrical case 40 is fitted into the case lower end engaging groove 61 M on the upper surface of the lower lid 61. The cylindrical case 40 is positioned with respect to the lower lid body 61. Then, a part of the cylindrical case 40 is positioned directly above the eight beam portions 20 (see FIG. 2) disposed on the outer edge portion of the lower pallet 10 via the lower lid body 61.

ここで、本実施形態の筒形ケース４０が、長辺と短辺とが交互に並べられた八角形の筒体構造になっているのに対し、下蓋体６１のケース下端係合溝６１Ｍは、図８（Ａ）及び図８（Ｂ）に示すように、短辺用の幅広の直線状係合溝６１Ｔと長辺用の幅狭の直線状係合溝６１Ｃとを交互に配置して備えているので、筒形ケース４０の多角形の折り目位置のばらつきにより、筒形ケース４０における長短の直線状先端縁の長さがばらついても、そのばらつきを幅広の直線状係合溝６１Ｔで吸収することができる。また、このとき、幅狭の直線状係合溝６１Ｃで筒形ケース４０を位置決めして筒形ケース４０と下蓋体６１との間のガタを無くすことができる。即ち、本実施形態の構成によれば、位置決め機能を確保しつつ、筒形ケース４０の形状のばらつきを吸収することができる。 Here, the cylindrical case 40 of the present embodiment has an octagonal cylindrical structure in which long sides and short sides are alternately arranged, whereas a case lower end engaging groove 61M of the lower lid 61 is provided. As shown in FIGS. 8A and 8B, a wide linear engagement groove 61T for the short side and a narrow linear engagement groove 61C for the long side are alternately arranged. Therefore, even if the lengths of the long and short straight end edges of the cylindrical case 40 vary due to variations in the polygonal crease position of the cylindrical case 40, the variations are widened. Can be absorbed. Further, at this time, the cylindrical case 40 can be positioned by the narrow linear engaging groove 61 C so that the play between the cylindrical case 40 and the lower lid 61 can be eliminated. That is, according to the configuration of the present embodiment, it is possible to absorb variations in the shape of the cylindrical case 40 while ensuring the positioning function.

また、図６に示すように、ケース下端係合溝６１Ｍを構成する外側環状嵌合突部６２と内側環状嵌合突部６３のうち内側環状嵌合突部６３における溝内側面は、上下方向と略平行な直立面６３Ａになっているので、内側環状嵌合突部６３による筒形ケース４０の位置決め精度が高くなる。さらに、内側環状嵌合突部６３の溝外側面は、上下方向に対して傾斜した傾斜面６３Ｂになっているので、筒形ケース４０内に収容した荷物が、内側環状嵌合突部６３の角部に当接して損傷する事態を回避することができる。 As shown in FIG. 6, the inner surface of the groove in the inner annular fitting protrusion 63 among the outer annular fitting protrusion 62 and the inner annular fitting protrusion 63 constituting the case lower end engaging groove 61 M is in the vertical direction. Therefore, the positioning accuracy of the cylindrical case 40 by the inner annular fitting protrusion 63 is increased. Furthermore, since the groove outer surface of the inner annular fitting projection 63 is an inclined surface 63B that is inclined with respect to the vertical direction, the load accommodated in the cylindrical case 40 is attached to the inner annular fitting projection 63. It is possible to avoid a situation where the corner portion contacts and is damaged.

次いで、筒形ケース４０の上面に上蓋体５１を載置すると、上蓋体５１の下面のケース上端係合溝５１Ｍに筒形ケース４０の上端部が嵌合し、筒形ケース４０の上端部に対して上蓋体５１が位置決めされる。このとき、上蓋体５１の上面に備えた第２の上蓋パレット係合突部５５が、下側の筒形ケース４０の真上に位置決めされる。 Next, when the upper lid 51 is placed on the upper surface of the cylindrical case 40, the upper end of the cylindrical case 40 is fitted into the case upper end engaging groove 51 M on the lower surface of the upper lid 51, and the upper end of the cylindrical case 40 is engaged. On the other hand, the upper lid 51 is positioned. At this time, the second upper lid pallet engaging protrusion 55 provided on the upper surface of the upper lid 51 is positioned directly above the lower cylindrical case 40.

ここで、上蓋体５１のケース上端係合溝５１Ｍも、上記ケース下端係合溝６１Ｍと同様に、短辺用の幅広の直線状係合溝５１Ｔと長辺用の幅狭の直線状係合溝５１Ｃとを交互に配置して備え（図９（Ａ）参照）、ケース上端係合溝５１Ｍとケース下端係合溝６１Ｍとの間で幅広の直線状係合溝５１Ｔ，６１Ｔ同士、幅狭の直線状係合溝５１Ｃ，６１Ｃ同士が対向配置されているので、筒形ケース４０における長短の直線状先端縁の長さがばらつきを幅広の直線状係合溝５１Ｔで吸収することができると共に、幅狭の直線状係合溝５１Ｃで筒形ケース４０を位置決めしてガタを無くすことができる。また、図６に示すように、ケース上端係合溝５１Ｍを構成する外側環状嵌合突部５２と内側環状嵌合突部５３のうち内側環状嵌合突部５３における溝内側面は、上下方向に対して傾斜した傾斜面５３Ａになっているので、筒形ケース４０の上端部の一部が上蓋体５１の中央寄りにずれても、内側環状嵌合突部５３の傾斜面６３Ｂと筒形ケース４０の上端部が摺接してずれが修正される。これにより、筒形ケース４０の上面に上蓋体を組み付ける作業が容易になる。さらには、内側環状嵌合突部５３における溝外側面は直立面５３Ｂになっているので、内側環状嵌合突部５３のうち直立面５３Ｂを有した部分が補強リブに役割を果たし、上蓋体５１の剛性を高めることができる。 Here, the case upper end engaging groove 51M of the upper lid 51 also has a wide linear engaging groove 51T for a short side and a narrow linear engaging for a long side, like the case lower end engaging groove 61M. The grooves 51C are alternately arranged (see FIG. 9A), and the wide linear engagement grooves 51T and 61T between the case upper end engagement groove 51M and the case lower end engagement groove 61M are narrow. Since the linear engagement grooves 51C and 61C are opposed to each other, the variation in the lengths of the long and short linear tip edges in the cylindrical case 40 can be absorbed by the wide linear engagement grooves 51T. The cylindrical case 40 can be positioned by the narrow linear engaging groove 51C to eliminate backlash. Further, as shown in FIG. 6, the inner surface of the groove in the inner annular fitting protrusion 53 of the outer annular fitting protrusion 52 and the inner annular fitting protrusion 53 constituting the case upper end engaging groove 51M is in the vertical direction. Therefore, even if a part of the upper end portion of the cylindrical case 40 is shifted toward the center of the upper lid 51, the inclined surface 63B of the inner annular fitting protrusion 53 and the cylindrical shape are formed. The upper end of the case 40 is slidably contacted to correct the deviation. Thereby, the operation | work which attaches an upper cover body to the upper surface of the cylindrical case 40 becomes easy. Furthermore, since the groove outer surface of the inner annular fitting protrusion 53 is an upright surface 53B, the portion of the inner annular fitting protrusion 53 having the upright surface 53B serves as a reinforcing rib, and the upper lid body. The rigidity of 51 can be increased.

次いで、図４に示すように、上蓋体５１の上面にパレット１０を載置すると、上蓋体５１の第１〜第３の上蓋パレット係合突部５４，５５，５６が上側のパレット１０の下面における桁下面溝２３等の凹部に凹凸係合し、そのパレット１０が上蓋体５１に対して位置決めされる。このとき、第１〜第３の上蓋パレット係合突部５４，５５，５６のうち本発明の「上蓋桁部係合突部」に相当する第２の上蓋パレット係合突部５５は、図１０及び図１１に示すように、上蓋体５１の上に載置したパレット１０の桁部２０における桁部係合孔２４に凹凸係合する。そして、上側のパレット１０の桁部２０の一部が、上蓋体５１を介して、筒形ケース４０の真上に位置決めされる。 Next, as shown in FIG. 4, when the pallet 10 is placed on the upper surface of the upper lid 51, the first to third upper lid pallet engaging protrusions 54, 55, and 56 of the upper lid 51 become the lower surface of the upper pallet 10. The concave and convex portions such as the girder lower surface groove 23 are engaged with the concave and convex portions, and the pallet 10 is positioned with respect to the upper lid body 51. At this time, among the first to third upper lid pallet engaging projections 54, 55, 56, the second upper lid pallet engaging projection 55 corresponding to the “upper lid girder engaging projection” of the present invention is shown in FIG. As shown in FIG. 10 and FIG. 11, the spar engages with the spar engaging hole 24 in the spar 20 of the pallet 10 placed on the upper lid 51. A part of the beam portion 20 of the upper pallet 10 is positioned directly above the cylindrical case 40 via the upper lid 51.

ここで、パレット１０の桁部２０は、パレット１０の上面と下面との間の全体に亘って延びかつパレット１０のうち上下方向の負荷に対して最も変形し難い部位である。そして、本実施形態の構成によれば、下蓋体６１のうちパレット１０の桁部２０にて真下から支持された部位で筒形ケース４０を支持すると共に、上蓋体５１のうち筒形ケース４０にて真下から支持された部位で上側のパレット１０の桁部２０を支持することになる。これにより、下蓋体６１及び上蓋体５１には曲げ応力がかかり難くなり、下蓋体６１及び上蓋体５１の変形が防がれる。 Here, the spar 20 of the pallet 10 is a part that extends over the entire area between the upper surface and the lower surface of the pallet 10 and is the least deformable part of the pallet 10 with respect to the load in the vertical direction. Then, according to the configuration of the present embodiment, the cylindrical case 40 is supported by the portion of the lower lid 61 that is supported from directly below by the spar 20 of the pallet 10, and the cylindrical case 40 of the upper lid 51. The spar 20 of the upper pallet 10 is supported at the portion supported from directly below. As a result, bending stress is hardly applied to the lower lid body 61 and the upper lid body 51, and deformation of the lower lid body 61 and the upper lid body 51 is prevented.

しかも、上蓋体５１とその上のパレット１０の間では、そのパレット１０のうち最も変形し難いために最も強く上蓋体５１に押し付けられる桁部２０の桁部係合孔２４と、上蓋体５１のうち筒形ケース４０にて支持されて変形し難い位置に配置された第２の上蓋パレット係合突部５５とが凹凸係合するので、上蓋体５１とその上側のパレット１０との位置決めの信頼性が高くなる。これらにより、筒形ケース４０と蓋体セット５０とからなるコンテナ３０を、積み上げた状態で安定させることができる。また、下蓋体６１がパレット１０と別々になっているので、下蓋体６１を外した状態のパレット１０を汎用のパレット１０として使用することができ、パレット１０の有効利用が図られる。即ち、本実施形態の構成によれば、下蓋体６１とパレット１０の製造コストの合計に対する費用対効果が、それら下蓋体とパレットとを一体化した従来品の製造コストに対する費用対効果に比べて向上する。 In addition, between the upper lid 51 and the pallet 10 thereabove, the spar engagement hole 24 of the spar 20 that is most strongly pressed against the upper lid 51 because the pallet 10 is most difficult to deform, and the upper lid 51 Of these, the second upper lid pallet engaging protrusion 55 that is supported by the cylindrical case 40 and disposed at a position that is not easily deformed engages with the concave and convex portions, so that the reliability of the positioning of the upper lid 51 and the pallet 10 on the upper lid 51 is reliable. Increases nature. By these, the container 30 which consists of the cylindrical case 40 and the cover body set 50 can be stabilized in the piled-up state. Further, since the lower lid 61 is separated from the pallet 10, the pallet 10 with the lower lid 61 removed can be used as the general-purpose pallet 10, and the pallet 10 can be effectively used. That is, according to the configuration of the present embodiment, the cost effectiveness for the total manufacturing cost of the lower lid body 61 and the pallet 10 becomes the cost effectiveness for the manufacturing cost of the conventional product in which the lower lid body and the pallet are integrated. Compared to improvement.

＜他の実施形態＞
本発明は、前記実施形態に限定されるものではなく、例えば、以下に説明するような実施形態も本発明の技術的範囲に含まれ、さらに、下記以外にも要旨を逸脱しない範囲内で種々変更して実施することができる。 <Other embodiments>
The present invention is not limited to the above-described embodiment. For example, the embodiments described below are also included in the technical scope of the present invention, and various other than the following can be made without departing from the scope of the invention. It can be changed and implemented.

（１）前記実施形態の筒形ケース４０は、八角形の筒形形状であった、筒形ケースは、四角形、五角形等、任意の多角形の角筒形であってもよいし、円筒形又は楕円筒形であってもよい。 (1) The cylindrical case 40 of the above embodiment has an octagonal cylindrical shape. The cylindrical case may be an arbitrary polygonal rectangular tube shape such as a quadrangle, a pentagon, or a cylindrical shape. Alternatively, it may be oval cylindrical.

（２）前記実施形態のパレット１０は、上面と下面の形状が異なっていたが、パレットの上面と下面とを同形状にしてもよい。具体的には、上記したパレット１０の上下の両面に前記デッキボード１１，１１を備えて上下の両面を同形状にしてもよい。この場合、上蓋体を裏返しにすると下蓋体になるように、上蓋体と下蓋体とを同形状にしてもよい。 (2) Although the shape of the upper surface and the lower surface of the pallet 10 of the embodiment is different, the upper surface and the lower surface of the pallet may be the same shape. Specifically, the upper and lower surfaces of the pallet 10 may be provided with the deck boards 11 and 11 so that the upper and lower surfaces have the same shape. In this case, the upper lid body and the lower lid body may have the same shape so that when the upper lid body is turned upside down, it becomes the lower lid body.

（３）前記実施形態の上蓋体５１及び下蓋体６１は、樹脂シートの真空成形品であったが、樹脂の射出成形品であってもよい。 (3) Although the upper lid body 51 and the lower lid body 61 of the embodiment are vacuum molded products of a resin sheet, they may be resin injection molded products.

本発明の一実施形態に係るコンテナとパレットの斜視図The perspective view of the container and pallet which concern on one Embodiment of this invention パレットを斜め上方から見た斜視図Perspective view of the pallet seen from diagonally above パレットを斜め下方から見た斜視図Perspective view of the pallet seen from diagonally below コンテナを積み上げた状態の蓋体セットの側面図Side view of lid set with containers stacked コンテナを積み上げた状態の蓋体セットの側断面図Side sectional view of the lid set with the containers stacked コンテナを積み上げた状態の蓋体セットの拡大側断面図Enlarged side sectional view of the lid set with containers stacked （Ａ）下蓋体の平面図，（Ｂ）下蓋体の側面図，（Ｃ）図７（Ａ）におけるＸ−Ｘ断面の側断面図(A) Plan view of lower lid, (B) Side view of lower lid, (C) Side sectional view of XX cross section in FIG. 7 (A) （Ａ）正規の形状からばらついた筒形ケースと下蓋体の部分平面図，（Ｂ）正規の形状の筒形ケースと下蓋体の部分平面図(A) A partial plan view of the cylindrical case and the lower lid body, which vary from the regular shape, (B) a partial plan view of the cylindrical case and the lower lid body of the regular shape. （Ａ）上蓋体の平面図，（Ｂ）上蓋体の側面図，（Ｃ）図９（Ａ）におけるＹ−Ｙ断面の側断面図(A) Top view of upper lid, (B) Side view of upper lid, (C) Side cross-sectional view of YY cross section in FIG. 9 (A) 上蓋体とパレットの桁部の平面図Top view of upper lid and pallet girder 図１０におけるＺ−Ｚ断面の上蓋体とパレットの断面図Sectional drawing of the upper cover body and pallet of the ZZ cross section in FIG. 従来のコンテナの分解斜視図Exploded perspective view of a conventional container 従来のコンテナを積み重ねた状態の側面図Side view of conventional containers stacked 従来のコンテナを積み重ねた状態の部分拡大側断面図Partially enlarged side sectional view of conventional containers stacked

Explanation of symbols

１０パレット
１６梁溝（上面凹部）
１７桁上面溝（上面凹部）
１８格子孔（上面凹部）
１９格子孔（上面凹部）
２０桁部
２４桁部係合孔（下面凹部）
３０コンテナ
４０筒形ケース
５０蓋体セット
５１上蓋体
５１Ｃ，６１Ｃ，５１Ｔ，６１Ｔ直線状係合溝
５１Ｍケース上端係合溝
５２外側環状嵌合突部（上端外側嵌合突部，環状外縁突部）
５２Ａ，６２Ａ大膨出部
５２Ｂ，６２Ｂ小膨出部
５２Ｍ，５３Ｍ環状溝
５２Ｖ外側凹部
５３内側環状嵌合突部（上端内側嵌合突部）
５３Ａ傾斜面
５３Ｂ直立面
５３Ｍ環状溝
５５第２の上蓋パレット係合突部（上蓋桁部係合突部）
６１下蓋体
６１Ｍケース下端係合溝
６２外側環状嵌合突部（下端外側嵌合突部，環状外縁突部）
６３内側環状嵌合突部（下端内側嵌合突部）
６３Ａ直立面
６３Ｂ傾斜面
６４〜６７第１〜第４の下蓋パレット係合突部 10 Pallet 16 Beam groove (top recess)
17 Girder top groove (top recess)
18 Lattice hole (top recess)
19 Lattice hole (top recess)
20 Girder part 24 Girder engagement hole (recessed on the bottom)
30 Container 40 Cylindrical case 50 Lid set 51 Upper lid 51C, 61C, 51T, 61T Linear engagement groove 51M Case upper end engagement groove 52 Outer annular fitting projection (upper outer fitting projection, annular outer edge projection) )
52A, 62A Large bulging portion 52B, 62B Small bulging portion 52M, 53M Annular groove 52V Outer recess 53 Inner annular fitting protrusion (upper inner fitting protrusion)
53A Inclined surface 53B Upright surface 53M Annular groove 55 Second upper lid pallet engaging protrusion (upper cover girder engaging protrusion)
61 Lower lid 61M Case lower end engagement groove 62 Outer annular fitting projection (lower end outer fitting projection, annular outer edge projection)
63 Inner ring fitting protrusion (lower end fitting protrusion)
63A Upright surface 63B Inclined surface 64-67 First to fourth lower lid pallet engaging protrusions

Claims

A lid body set consisting of an upper lid body and a lower lid body capable of closing an upper surface opening and a lower surface opening in a cylindrical case open at both ends, comprising a container for cargo transportation together with the cylindrical case, and a pallet for a forklift In the lid set that enables the containers to be stacked via,
On the lower surface of the lower lid body, a lower lid pallet engagement protrusion is formed that engages with an upper surface recess of the pallet and can position the lower lid body with respect to the pallet.
On the upper surface of the lower lid body, a lower end of the cylindrical case when a part of the cylindrical case placed on the lower lid body is positioned directly above the girder portion of the pallet on the lower side of the lower lid body. A lower lid case engaging portion that is engaged with a portion and is capable of positioning the cylindrical case with respect to the lower lid body;
On the lower surface of the upper lid body, an upper lid case engaging portion that engages with an upper end portion of the cylindrical case and can position the upper lid body with respect to the cylindrical case is formed.
On the upper surface of the upper lid body, there is an upper lid spar engaging projection that engages with a lower surface recess in the pallet portion of the pallet placed thereon and can position the pallet with respect to the upper lid body. A lid set, which is formed right above the cylindrical case on the side.

The cylindrical case is a polygonal cylinder having an even number of corners of hexagon or more,
In the upper lid and the lower lid, a plurality of linear engagement grooves into which a plurality of linear tip edges in the cylindrical case are inserted are formed as the upper lid case engaging portion or the lower lid case engaging portion. And
The plurality of linear engagement grooves are formed by alternately arranging the wide linear engagement grooves and the narrow linear engagement grooves,
The lid according to claim 1, wherein the wide linear engaging grooves and the narrow linear engaging grooves are arranged to face each other between the upper lid and the lower lid. set.

On the lower lid, a lower end outer fitting protrusion and a lower end inner fitting protrusion that are fitted to the outside and the inside of the cylindrical case are formed to protrude,
A case lower end engaging groove as the lower lid case engaging portion between the lower end outer fitting protrusion and the lower end inner fitting protrusion,
The groove inner side surface of the lower end inner fitting protrusion is an upright surface substantially parallel to the vertical direction, while the groove outer surface of the lower end inner fitting protrusion is an inclined surface inclined with respect to the vertical direction. The lid set according to claim 1, wherein:

On the upper lid, an upper end outer fitting projection and an upper end inner fitting projection that are fitted to the outside and the inside of the cylindrical case are formed to protrude,
A case upper end engaging groove as the upper lid case engaging portion between the upper end outer fitting protrusion and the upper end inner fitting protrusion,
The lid set according to any one of claims 1 to 3, wherein an inner surface of the groove of the upper end inner fitting protrusion is an inclined surface inclined with respect to the vertical direction.

The upper lid body and the lower lid body are vacuum molded products of a resin sheet, and the upper lid body and the lower lid body are ring-shaped annular outer edge protrusions that are closed by expanding the outer edge portion of the resin sheet. A plurality of small bulging portions having relatively small protrusion heights and widths and relatively large large bulging portions are formed on the annular outer edge protruding portion. The lid set according to any one of claims 1 to 4.

A container comprising the lid set according to any one of claims 1 to 5 and the cylindrical case.