JP4149238B2 - Folding container - Google Patents

Folding container Download PDF

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Publication number
JP4149238B2
JP4149238B2 JP2002326863A JP2002326863A JP4149238B2 JP 4149238 B2 JP4149238 B2 JP 4149238B2 JP 2002326863 A JP2002326863 A JP 2002326863A JP 2002326863 A JP2002326863 A JP 2002326863A JP 4149238 B2 JP4149238 B2 JP 4149238B2
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Japan
Prior art keywords
peripheral wall
arc
lid
fitting
tip
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JP2002326863A
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Japanese (ja)
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JP2004161304A (en
Inventor
貴志 藪田
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Sanko Co Ltd
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Sanko Co Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は、種々の物品の保管、輸送或いは搬送等に使用される折り畳みコンテナーに関するものである。
【0002】
【従来の技術】
図4〜図8を用いて、従来の折り畳みコンテナーについて説明する。
【0003】
折り畳みコンテナーの本体Cは、額縁状の上部フレーム1と、底部2と、上部フレーム1にその上端部がヒンジ連結された、折り畳みコンテナーの内側方向に回動可能な側壁(以下、この側壁を、はね上げ側壁という。)3と、上下に分割されているとともに、適当なヒンジ部を介して連結された側壁(以下、この側壁を、分割側壁という。)4とを有しており、分割側壁4は、ヒンジ部を挟んで上方に位置する上部分割側壁4’と、ヒンジ部を挟んで下方に位置する下部分割側壁4”とから構成されており、且つ、上部分割側壁4’の上端部が、上部フレーム1にヒンジ連結されており、また、下部分割側壁4”の下端部が、底部2にヒンジ連結されている。
【0004】
折り畳みコンテナーの本体Cに被蓋される蓋5は、一対の半蓋体5’により構成されており、半蓋体5’の直線状の長辺部5aが、適当なヒンジ部材H1により、上部フレーム1の相対する長辺枠1aにヒンジ連結されている。また、半蓋体5’の直線状の長辺部5aと相対する辺部には、複数の略台形状や放物線状の嵌合凸部5bと、嵌合凸部5b間に位置する嵌合凹部5cが形成されており、更に、嵌合凸部5bの根元側に位置する嵌合凹部5cの一部を閉鎖するとともに、嵌合凸部5bより一段下がった閉鎖段差部5dが形成されている。嵌合凸部5bの周壁5b1と閉鎖段差部5dとにより形成される隅部に位置する閉鎖段差部5dの上面(半蓋体5’が、箱型に組み立てられた折り畳みコンテナーの本体Cを被蓋した際に、上方に位置する面)5d1には、隣り合う嵌合凸部5bの相対する周壁5b1の所定の部分から、互いに接近する方向に延在する嵌合リブ6が形成されている。また、閉鎖段差部5dから突出している嵌合凸部5bの相対する周壁5b1には、嵌合リブ6が嵌合可能な嵌合凹部5b2が形成されている。
【0005】
図4や図7に示されているように、箱型に組み立てられた折り畳みコンテナーの本体Cを折り畳むには、先ず最初に、略垂直状態のはね上げ側壁3を、上方に回動させて、図5に示されているように、略水平状態とし、次いで、分割側壁4を構成する上部分割側壁4’と下部分割側壁4”とを連結するヒンジ部を、内側方向に移動させて、上部分割側壁4’と下部分割側壁4”とを互いに重なることにより、図6に示されているように、高さの低いコンパクトな状態に折り畳むことができるように構成されている。また、底部2に対して、上部フレーム1を上方に持ち上げて、互いに重ねられていた上部分割側壁4’と下部分割側壁4”とを、略面一状態にし、次いで、略水平状態のはね上げ側壁3を、下方に回動させて、略垂直状態とすることにより、箱型に組み立てることができるように構成されている。
【0006】
図7に示されているように、箱型に組み立てられた折り畳みコンテナーの本体Cの開口部、即ち、上部フレーム1の開口部、或い、図6に示されているように、折り畳まれた状態の上部フレーム1の開口部を、一対の半蓋体5’からなる蓋5により被蓋した際には、一方の半蓋体5’の嵌合凸部5bは、もう一方の半蓋体5’の嵌合凹部5cに嵌合されるとともに、一方の半蓋体5’の嵌合凸部5bの先端部は、もう一方の半蓋体5’の閉鎖段差部5dに載置され、更に、一方の半蓋体5’の嵌合凸部5bの周壁5b1に形成された嵌合凹部5b2に、もう一方の半蓋体5’の閉鎖段差部5dに形成された嵌合リブ6が、嵌合するように構成されている。このように構成することにより、一対の半蓋体5’が、がたつくようなことがなく、且つ、一対の半蓋体5’の互いに嵌合する部分に、上方から負荷が加わっても、一対の半蓋体5’の互いに嵌合する部分が、折り畳みコンテナーの本体Cの内部方向に沈み込まないように構成されている。
【0007】
上述した構成を有する折り畳みコンテナーは、例えば、実公昭58−31668号公報、特開平11−35034号公報等に開示されている。
【0008】
【発明が解決しようとする課題】
上述した従来の折り畳みコンテナーにおいては、半蓋体5’の閉鎖段差部5dから突出している嵌合凸部5bの先端部が長いために、嵌合凸部5bの先端部と閉鎖段差部5dとの重合部分が長くなり、従って、この部分に、上方から負荷が加わった際に、半蓋体5’が、折り畳みコンテナーの本体Cの内部方向に大きく撓むという問題があった。また、半蓋体5’の閉鎖段差部5dから突出している嵌合凸部5bの先端部が長いために、半蓋体5’の短辺側の長さ(長辺部5aから嵌合凸部5bの先端までの長さ)L1が長くなり、従って、半蓋体5’の重量が増大するとともに、箱型に組み立てられた折り畳みコンテナーの本体Cの分割側壁4に、半蓋体5’を重ねて、本体Cの開口部を開けた際に、半蓋体5’の先端が、床等に当接するという問題があった。
【0009】
本発明の目的は、上述した従来の折り畳みコンテナーが有する課題を解決するとともに、蓋の強度や剛性が向上した折り畳みコンテナーを提供することにある。
【0010】
【課題を解決するための手段】
本発明は、上述した目的を達成するために、上部フレームと、底部と、はね上げ側壁と、上部分割側壁と下部分割側壁とからなる分割側壁と、一方の半蓋体の重合嵌合部ともう一方の半蓋体の閉鎖段差部とが重合するように構成されている蓋とを有する折り畳みコンテナーにおいて、上部フレームの相対する長辺枠にヒンジ連結されている半蓋体の直線状の長辺部と相対する辺部には、変曲点を結んだ中心線より外側に突出した、半円以下の円弧からなる先端側円弧状周壁部と、変曲点を結んだ中心線より内側に引っ込んだ、半円以下の円弧からなる根元側円弧状周壁部とにより、波状周壁が形成されているとともに、根元側円弧状周壁部により形成された凹部には、変曲点を結んだ中心線に、その先端が略一致し、且つ、根元側円弧状周壁部により形成された凹部を閉鎖する閉鎖段差部が形成されており、また、閉鎖段差部の上面には、変曲点を結んだ中心線と平行な直線部と根元側円弧状周壁部側に突出した円弧部とからなり、且つ、相対する根元側円弧状周壁部を連結する連結リブが形成されており、更に、先端側円弧状周壁部には、連結リブの直線部が嵌合する嵌合凹部が形成されており、上部フレームの開口部を、一対の半蓋体により被蓋した際には、一方の半蓋体の先端側円弧状周壁部の先端部が、もう一方の半蓋体の閉鎖段差部に形成された連結リブの円弧部と根元側円弧状周壁部との間に形成された空隙部に挿入されるように構成したものである。
【0011】
【実施例】
以下に、本発明の実施例について説明するが、本発明の趣旨を越えない限り何ら、本実施例に限定されるものではない。また、本発明の折り畳みコンテナーは、蓋を構成する一対の半蓋体が、上述した従来の折り畳みコンテナーの半蓋体と異なる以外は、実質的に同じ構成を有しているので、同じ構成部材については、同じ符号を使用するとともに、その詳細な説明は省略する。
【0012】
本発明においては、上部フレーム1の相対する長辺枠1aにヒンジ連結されている、半蓋体5’の直線状の長辺部5aと相対する辺部には、変曲点p1を結んだ中心線L1より外側に突出した、半円以下の円弧からなる先端側円弧状周壁部50aと、変曲点p1を結んだ中心線L1より内側に引っ込んだ、半円以下の円弧からなる根元側円弧状周壁部50bとにより、波状周壁50が形成されている。また、変曲点p1を結んだ中心線L1に、その先端が略一致する、上述した閉鎖段差部5dに相当する閉鎖段差部50cが、根元側円弧状周壁部50b間に形成された凹部を閉鎖するように形成されている。変曲点p1を結んだ中心線L1、換言すれば.閉鎖段差部50cの先端を越えて突出した半円以下の円弧領域を、以下、重合嵌合部50dと称し、この重合嵌合部50dが、上述した従来の半蓋体5’の嵌合凸部5bの先端部に相当する。
【0013】
閉鎖段差部50cの上面(半蓋体50’が、箱型に組み立てられた折り畳みコンテナーの本体Cを被蓋した際に、上方に位置する面)50c1には、相対する根元側円弧状周壁部50bを連結する連結リブ60が形成されており、連結リブ60は、相対する根元側円弧状周壁部50b側に位置するとともに、閉鎖段差部50cの先端、換言すれば、変曲点p1を結んだ中心線L1と平行な直線部60aと、先端側円弧状周壁部50a及び根元側円弧状周壁部50bと略同じ曲率半径を有するとともに、根元側円弧状周壁部50b側に突出した円弧部60bとにより構成されている。
【0014】
閉鎖段差部50cの先端、換言すれば、変曲点p1を結んだ中心線L1を越えて位置する先端側円弧状周壁部50aには、上述した従来の半蓋体5’の閉鎖段差部5dから突出している嵌合凸部5bの周壁5b1に形成されている嵌合凹部5b2に相当する嵌合凹部50eが形成されている。
【0015】
図1に示されているように、箱型に組み立てられた折り畳みコンテナーの本体Cの開口部、即ち、上部フレーム1の開口部を、一対の半蓋体5’からなる蓋5により被蓋した際には、一方の半蓋体5’の重合嵌合部50dが、もう一方の半蓋体5’の閉鎖段差部5cに載置され、また、一方の半蓋体5’の先端側円弧状周壁部50aに形成された嵌合凹部50eに、もう一方の半蓋体5’の閉鎖段差部50cに形成された連結リブ60の直線部60aが嵌合するように構成されている。更に、一方の半蓋体5’の先端側円弧状周壁部50aの先端部は、もう一方の半蓋体5’の閉鎖段差部50cに形成された連結リブ60の円弧部60bと根元側円弧状周壁部50bとの間に形成された空隙部A1に挿入されるように構成されている。
【0016】
上述したように、蓋5を構成する一対の半蓋体5’の重合嵌合部50dの先端側円弧状周壁部50aが、半円以下の円弧に形成されているので、重合嵌合部50dの閉鎖段差部50cからの突出長さが短いので、重合嵌合部50dの強度や剛性が大きく、従って、重合嵌合部50dが損傷するようなことがない。
【0017】
また、一対の半蓋体5’により、折り畳みコンテナーの開口部を被蓋した際の一方の半蓋体5’の重合嵌合部50dともう一方の半蓋体5’の閉鎖段差部50cとの重合部分の強度や剛性が大きいので、この重合部分に、上方から多少の負荷がかかっても、重合部分が、折り畳みコンテナーの内部方向に撓むようなことがない。
【0018】
更に、蓋5を構成する一対の半蓋体5’の重合嵌合部50dの先端側円弧状周壁部50aが、半円以下の円弧に形成されているので、半蓋体5’の短辺側の長さ(長辺部5aから重合嵌合部50dの先端までの長さ)L2の長さが、上述した従来の半蓋体5’の短辺側の長さL1より短くなり、従って、半蓋体50’の重量が軽減化されるとともに、箱型に組み立てられた折り畳みコンテナーの本体Cの分割側壁4に、半蓋体5’を重ねて、本体Cの開口部を開けた際に、半蓋体5’の先端が、床等に当接するようなことを防止することができる。
【0019】
更にまた、閉鎖段差部50cの上面50c1には、相対する根元側円弧状周壁部50bを連結する連結リブ60が形成されているので、閉鎖段差部50c及び根元側円弧状周壁部50bの強度や剛性が向上し、ひいては、半蓋体5’の強度や剛性が向上する。従って、一方の半蓋体5’の重合嵌合部50dと、もう一方の半蓋体5’の閉鎖段差部50cとの重合部分の強度や剛性が向上し、重合部分が、折り畳みコンテナーの内部方向に撓むようなことを確実に防止することができる。
【0020】
【発明の効果】
本発明は、以上説明したように構成されているので、以下に記載されるような効果を奏する。
【0021】
重合嵌合部の周壁部を、半円以下の円弧状に形成したので、重合嵌合部の閉鎖段差部からの突出長さが短くなり、従って、重合嵌合部の強度や剛性が大きくなり、重合嵌合部の損傷を防止ことができるとともに、一方の半蓋体の重合嵌合部ともう一方の半蓋体の閉鎖段差部との重合部分の強度や剛性が大きくなるので、重合部分が、折り畳みコンテナーの内部方向に撓むようなことがない。
【0022】
閉鎖段差部の上面に、相対する根元側円弧状周壁部を連結する連結リブを形成したので、閉鎖段差部及び根元側円弧状周壁部の強度や剛性が向上し、ひいては、半蓋体の強度や剛性が向上する。
【図面の簡単な説明】
【図1】図1は、本発明の折り畳みコンテナーが箱型に組み立てられ、且つ、蓋で被蓋された状態の斜視図である。
【図2】図2は、本発明の折り畳みコンテナーの蓋を構成する半蓋体の上方からの斜視図である。
【図3】図3は、本発明の折り畳みコンテナーの蓋を構成する半蓋体の裏面斜視図である。
【図4】図4は、従来の折り畳みコンテナーが箱型に組み立てられ、且つ、蓋が開けられた状態の斜視図である。
【図5】図5は、従来の折り畳みコンテナーの組み立て途中或いは折り畳み途中の斜視図である。
【図6】図6は、従来の折り畳みコンテナーが折り畳まれた状態の斜視図である。
【図7】図7は、従来の折り畳みコンテナーが箱型に組み立てられ、且つ、蓋で被蓋された状態の斜視図である。
【図8】図8は、従来の折り畳みコンテナーの蓋を構成する半蓋体の上方からの斜視図である。
【符号の説明】
1・・・・・・・・上部フレーム
2・・・・・・・・底部
3・・・・・・・・はね上げ側壁
4・・・・・・・・分割側壁
4’・・・・・・・上部分割側壁
4”・・・・・・・下部分割側壁
5・・・・・・・・蓋
5’・・・・・・・半蓋体
50c・・・・・・閉鎖段差部
50d・・・・・・重合嵌合部
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a folding container used for storing, transporting or transporting various articles.
[0002]
[Prior art]
A conventional folding container will be described with reference to FIGS.
[0003]
The main body C of the folding container includes a frame-shaped upper frame 1, a bottom portion 2, and a side wall (henceforth, referred to as this side wall) that is pivotally connected to the inner side of the folding container, the upper end of which is hinged to the upper frame 1. And a side wall (hereinafter, this side wall is referred to as a divided side wall) 4 which is divided into upper and lower parts and connected via an appropriate hinge portion. Is composed of an upper divided side wall 4 ′ located above the hinge part and a lower divided side wall 4 ″ located below the hinge part, and the upper end part of the upper divided side wall 4 ′ is The lower frame 4 ″ is hinged to the upper frame 1, and the lower end of the lower divided side wall 4 ″ is hinged to the bottom 2.
[0004]
The lid 5 covered by the main body C of the folding container is composed of a pair of half lids 5 ', and the linear long side 5a of the half lid 5' is The frame 1 is hinged to the opposing long side frame 1a. Further, on the side facing the linear long side 5a of the half lid 5 ', there are a plurality of substantially trapezoidal or parabolic fitting projections 5b and a fitting located between the fitting projections 5b. A recess 5c is formed, and a part of the fitting recess 5c located on the base side of the fitting protrusion 5b is closed, and a closing step 5d that is one step lower than the fitting protrusion 5b is formed. Yes. The upper surface of the closed stepped portion 5d located at the corner formed by the peripheral wall 5b1 of the fitting convex portion 5b and the closed stepped portion 5d (the half lid body 5 'covers the main body C of the folding container assembled in a box shape). A fitting rib 6 extending in a direction approaching each other from a predetermined portion of the opposing peripheral wall 5b1 of the adjacent fitting convex portion 5b is formed on the upper surface 5d1 when the lid is closed. . Moreover, the fitting recessed part 5b2 which can fit the fitting rib 6 is formed in the surrounding wall 5b1 which the fitting convex part 5b which protrudes from 5 d of closed steps opposes.
[0005]
As shown in FIG. 4 and FIG. 7, in order to fold the main body C of the folding container assembled in a box shape, first, the flip-up side wall 3 in the substantially vertical state is rotated upward, As shown in FIG. 5, the upper divided wall is moved by moving the hinge portion connecting the upper divided side wall 4 ′ and the lower divided side wall 4 ″ constituting the divided side wall 4 inwardly to a substantially horizontal state. By overlapping the side wall 4 ′ and the lower divided side wall 4 ″ with each other, as shown in FIG. 6, the side wall 4 ′ and the lower divided side wall 4 ″ can be folded into a compact state with a low height. Further, the upper frame 1 is lifted upward with respect to the bottom 2 so that the upper divided side wall 4 ′ and the lower divided side wall 4 ″ overlapped with each other are substantially flush with each other, and then the raised side wall in a substantially horizontal state. By rotating 3 downward and making it a substantially vertical state, it is comprised so that it can assemble to a box shape.
[0006]
As shown in FIG. 7, the opening of the main body C of the folding container assembled in a box shape, that is, the opening of the upper frame 1, or folded as shown in FIG. When the opening of the upper frame 1 in the state is covered with the lid 5 composed of a pair of half-lid bodies 5 ′, the fitting convex portion 5b of one half-lid body 5 ′ is the other half-lid body 5 'is fitted into the fitting recess 5c, and the tip of the fitting projection 5b of one half lid 5' is placed on the closing step 5d of the other half lid 5 ', Further, the fitting rib 5b2 formed on the peripheral wall 5b1 of the fitting convex portion 5b of one half lid 5 'has a fitting rib 6 formed on the closing step 5d of the other half lid 5'. , Is configured to fit. With this configuration, even if a load is applied from above to a portion where the pair of half-lid bodies 5 ′ are not rattled and the pair of half-lid bodies 5 ′ are fitted to each other, The half-lid bodies 5 'are configured so that the fitting portions of the half-lid bodies 5' do not sink into the inside of the main body C of the folding container.
[0007]
Folding containers having the above-described configuration are disclosed in, for example, Japanese Utility Model Publication No. 58-31668 and Japanese Patent Application Laid-Open No. 11-35034.
[0008]
[Problems to be solved by the invention]
In the conventional folding container described above, since the front end of the fitting convex part 5b protruding from the closing step part 5d of the half lid 5 'is long, the front end part of the fitting convex part 5b and the closing step part 5d Therefore, when a load is applied to the portion from above, there is a problem that the half lid 5 ′ is greatly bent in the inner direction of the main body C of the folding container. Further, since the front end portion of the fitting convex portion 5b protruding from the closed stepped portion 5d of the half lid body 5 ′ is long, the length on the short side of the half lid body 5 ′ (the fitting convex portion from the long side portion 5a). (Length to the tip of the part 5b) L1 is increased, so that the weight of the half-lid body 5 'increases, and the half-lid body 5' is attached to the divided side wall 4 of the body C of the folding container assembled in a box shape. When the opening of the main body C is opened, the tip of the half lid 5 'comes into contact with the floor or the like.
[0009]
An object of the present invention is to solve the problems of the above-described conventional folding container and to provide a folding container with improved lid strength and rigidity.
[0010]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention provides an upper frame, a bottom, a raised side wall, a divided side wall composed of an upper divided side wall and a lower divided side wall, a superposed fitting portion of one half lid, In a folding container having a lid configured to overlap with a closed stepped portion of one half lid, the straight long side of the half lid that is hinged to the opposing long side frame of the upper frame In the side opposite to the part, the tip side arcuate peripheral wall consisting of an arc of a semicircle or less projecting outward from the center line connecting the inflection point, and retracting inward from the center line connecting the inflection point However, a corrugated peripheral wall is formed by a root-side arc-shaped peripheral wall portion made of a circular arc of a semicircle or less, and a recess formed by the root-side arc-shaped peripheral wall portion has a center line connecting inflection points. , The tips thereof are substantially coincident, and the arcuate peripheral wall on the root side Is closed step portion for closure forming the formed recesses by, On the upper surface of the closure step portion, projecting connecting inflection point and the center line parallel to the straight line portion root side arcuate peripheral wall side And a connecting rib that connects the opposite arcuate peripheral wall portions on the base side is formed, and the straight portion of the connecting rib is fitted to the arcuate peripheral wall portion on the tip side When a recess is formed and the opening of the upper frame is covered with a pair of half lids, the tip of the arcuate peripheral wall on the tip side of one half lid is the other half lid It is configured to be inserted into a gap formed between the arc portion of the connecting rib formed in the closed step portion and the root-side arc-shaped peripheral wall portion .
[0011]
【Example】
Examples of the present invention will be described below. However, the present invention is not limited to these examples as long as the gist of the present invention is not exceeded. Further, the folding container of the present invention has substantially the same configuration except that the pair of half lids constituting the lid is different from the half lid of the conventional folding container described above. The same reference numerals are used for, and a detailed description thereof is omitted.
[0012]
In the present invention, an inflection point p1 is connected to the side opposite to the linear long side 5a of the half lid 5 'that is hinged to the opposing long side frame 1a of the upper frame 1. The tip side arcuate peripheral wall portion 50a made of an arc of less than or equal to a semicircle projecting outward from the center line L1 and the root side made of an arc of less than or equal to a semicircle retracted inward from the center line L1 connecting the inflection point p1. A wave-like peripheral wall 50 is formed by the arc-shaped peripheral wall portion 50b. In addition, a closed stepped portion 50c corresponding to the above-described closed stepped portion 5d whose tip substantially coincides with the center line L1 connecting the inflection point p1 is a recess formed between the root-side arcuate peripheral wall portions 50b. It is configured to close. Center line L1 connecting inflection points p1, in other words. The arc region of a semicircle or less projecting beyond the tip of the closed stepped portion 50c is hereinafter referred to as a superposition fitting portion 50d, and this superposition fitting portion 50d is the fitting convexity of the conventional half lid 5 ′ described above. It corresponds to the tip of the part 5b.
[0013]
An upper surface of the closed stepped portion 50c (a surface located above when the half-cover 50 'covers the main body C of the folding container assembled in a box shape) 50c1 has an opposing root-side arc-shaped peripheral wall portion. A connecting rib 60 is formed to connect 50b. The connecting rib 60 is located on the side of the opposite base-side arcuate peripheral wall 50b and connects the tip of the closed stepped portion 50c, in other words, the inflection point p1. The straight portion 60a parallel to the center line L1 and the arc portion 60b having substantially the same radius of curvature as the tip-side arc-shaped peripheral wall portion 50a and the root-side arc-shaped peripheral wall portion 50b and protruding toward the root-side arc-shaped peripheral wall portion 50b. It is comprised by.
[0014]
The distal end of the closed stepped portion 50c, in other words, the distal-end-side arcuate peripheral wall portion 50a positioned beyond the center line L1 connecting the inflection points p1 is provided with the closed stepped portion 5d of the above-described conventional half-cover 5 ′. A fitting concave portion 50e corresponding to the fitting concave portion 5b2 formed in the peripheral wall 5b1 of the fitting convex portion 5b protruding from is formed.
[0015]
As shown in FIG. 1, the opening of the main body C of the folding container assembled in a box shape, that is, the opening of the upper frame 1 is covered with a lid 5 composed of a pair of half-lid bodies 5 ′. In this case, the overlapping fitting portion 50d of one half lid 5 ′ is placed on the closed stepped portion 5c of the other half lid 5 ′, and the tip side circle of the other half lid 5 ′ is placed. The straight portion 60a of the connecting rib 60 formed in the closed stepped portion 50c of the other half lid 5 ′ is fitted into the fitting recess 50e formed in the arc-shaped peripheral wall portion 50a. Further, the tip end portion of the arcuate peripheral wall portion 50a on the tip end side of the half lid body 5 ′ is connected to the arc portion 60b of the connecting rib 60 formed on the closing step portion 50c of the other half lid body 5 ′ and the root side circle. It is configured to be inserted into a gap A1 formed between the arcuate peripheral wall 50b.
[0016]
As described above, since the tip-side arcuate peripheral wall portion 50a of the overlapping fitting portion 50d of the pair of half-lid bodies 5 ′ constituting the lid 5 is formed in a semicircular arc or less, the overlapping fitting portion 50d Since the protruding length from the closed step portion 50c is short, the strength and rigidity of the overlapping fitting portion 50d are large, and therefore the overlapping fitting portion 50d is not damaged.
[0017]
Further, when the opening of the folding container is covered by the pair of half-lid bodies 5 ′, the overlapping fitting portion 50d of one half-lid body 5 ′ and the closing stepped portion 50c of the other half-lid body 5 ′ Since the polymerization portion has a high strength and rigidity, even if a slight load is applied to the polymerization portion from above, the polymerization portion does not bend toward the inside of the folding container.
[0018]
Furthermore, since the tip-side arcuate peripheral wall portion 50a of the overlapping fitting portion 50d of the pair of half-lid bodies 5 ′ constituting the lid 5 is formed in a semicircular arc or less, the short side of the half-lid body 5 ′ Side length (length from the long side portion 5a to the tip of the overlapping fitting portion 50d) L2 is shorter than the short side length L1 of the conventional half lid 5 ′ described above. When the weight of the half lid 50 'is reduced and the opening of the main body C is opened by overlapping the half lid 5' on the divided side wall 4 of the main body C of the folding container assembled in a box shape. In addition, it is possible to prevent the tip of the half lid 5 'from coming into contact with the floor or the like.
[0019]
Furthermore, since the connection rib 60 which connects the opposing root side arcuate peripheral wall part 50b is formed in the upper surface 50c1 of the closing step part 50c, the strength of the closing step part 50c and the root side arcuate peripheral wall part 50b The rigidity is improved, and consequently the strength and rigidity of the half lid 5 ′ is improved. Accordingly, the strength and rigidity of the overlapping portion between the overlapping fitting portion 50d of one half lid 5 'and the closed stepped portion 50c of the other half lid 5' is improved, and the overlapping portion is inside the folding container. It is possible to reliably prevent bending in the direction.
[0020]
【The invention's effect】
Since the present invention is configured as described above, the following effects can be obtained.
[0021]
Since the circumferential wall of the overlapped fitting part is formed in an arc shape of a semicircle or less, the protruding length from the closed stepped portion of the overlapped fitting part is shortened, and therefore the strength and rigidity of the overlapped fitting part are increased. In addition to preventing damage to the polymerization fitting portion, the strength and rigidity of the polymerization portion between the polymerization fitting portion of one half lid and the closed stepped portion of the other half lid increase, so the polymerization portion However, it does not bend toward the inside of the folding container.
[0022]
Since the connecting rib that connects the opposite root-side arcuate peripheral wall portions is formed on the upper surface of the closed stepped portion, the strength and rigidity of the closed stepped portion and the root-side arcuate peripheral wall portion are improved, and the strength of the half lid And rigidity is improved.
[Brief description of the drawings]
FIG. 1 is a perspective view of a folding container according to the present invention assembled in a box shape and covered with a lid.
FIG. 2 is a perspective view from above of a half-lid body that constitutes a lid of a folding container according to the present invention.
FIG. 3 is a rear perspective view of a half-lid body constituting a lid of a folding container according to the present invention.
FIG. 4 is a perspective view of a state in which a conventional folding container is assembled in a box shape and a lid is opened.
FIG. 5 is a perspective view during assembly or folding of a conventional folding container.
FIG. 6 is a perspective view of a state in which a conventional folding container is folded.
FIG. 7 is a perspective view of a conventional folding container assembled in a box shape and covered with a lid.
FIG. 8 is a perspective view from above of a half lid that constitutes a lid of a conventional folding container.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ..... Upper frame 2 ..... Bottom part 3 ..... Bounce-up side wall 4 ...... Split side wall 4 '... ··· Upper divided side wall 4 "······ Lower divided side wall 5 ············· lid 5 ' .... Polymerization fitting part

Claims (1)

上部フレームと、底部と、はね上げ側壁と、上部分割側壁と下部分割側壁とからなる分割側壁と、一方の半蓋体の重合嵌合部ともう一方の半蓋体の閉鎖段差部とが重合するように構成されている蓋とを有する折り畳みコンテナーにおいて、上部フレームの相対する長辺枠にヒンジ連結されている半蓋体の直線状の長辺部と相対する辺部には、変曲点を結んだ中心線より外側に突出した、半円以下の円弧からなる先端側円弧状周壁部と、変曲点を結んだ中心線より内側に引っ込んだ、半円以下の円弧からなる根元側円弧状周壁部とにより、波状周壁が形成されているとともに、根元側円弧状周壁部により形成された凹部には、変曲点を結んだ中心線に、その先端が略一致し、且つ、根元側円弧状周壁部により形成された凹部を閉鎖する閉鎖段差部が形成されており、また、閉鎖段差部の上面には、変曲点を結んだ中心線と平行な直線部と根元側円弧状周壁部側に突出した円弧部とからなり、且つ、相対する根元側円弧状周壁部を連結する連結リブが形成されており、更に、先端側円弧状周壁部には、連結リブの直線部が嵌合する嵌合凹部が形成されており、上部フレームの開口部を、一対の半蓋体により被蓋した際には、一方の半蓋体の先端側円弧状周壁部の先端部が、もう一方の半蓋体の閉鎖段差部に形成された連結リブの円弧部と根元側円弧状周壁部との間に形成された空隙部に挿入されるように構成されていることを特徴とする折り畳みコンテナー。The upper frame, the bottom, the raised side wall, the divided side wall composed of the upper divided side wall and the lower divided side wall, the overlapping fitting portion of one half lid and the closed stepped portion of the other half lid are overlapped. In the folding container having a lid configured as described above, an inflection point is provided on the side of the half lid that is hinged to the opposing long side frame of the upper frame. A tip-side arc-shaped peripheral wall consisting of an arc of less than or equal to a semicircle projecting outward from the connected center line and a root-side arc formed of an arc of less than or equal to a semicircle retracted inward from the center line connecting the inflection points A wave-like peripheral wall is formed by the peripheral wall portion, and the concave portion formed by the root-side arc-shaped peripheral wall portion substantially coincides with the center line connecting the inflection points, and the root-side circle closing step of closing the recess formed by the arc-shaped peripheral wall portion In addition, the upper surface of the closed stepped portion is composed of a linear portion parallel to the center line connecting the inflection points and an arc portion protruding toward the root-side arcuate peripheral wall portion, and is opposed to each other. A connecting rib for connecting the base-side arc-shaped peripheral wall portion is formed, and a fitting concave portion for fitting a straight portion of the connecting rib is formed on the tip-side arc-shaped peripheral wall portion, so that an opening of the upper frame is formed. When the part is covered with a pair of half lids, the tip of the arcuate peripheral wall on the tip side of one half lid is connected to the connecting rib formed on the closed stepped part of the other half lid. A folding container configured to be inserted into a gap formed between an arc portion and a base-side arc-shaped peripheral wall portion .
JP2002326863A 2002-11-11 2002-11-11 Folding container Expired - Fee Related JP4149238B2 (en)

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Publication number Priority date Publication date Assignee Title
JP4652036B2 (en) * 2004-12-08 2011-03-16 三甲株式会社 Folding container with lid
JP2007091277A (en) * 2005-09-29 2007-04-12 Seiko Epson Corp Folding type container

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