JP3663483B2

JP3663483B2 - Support frame for packaging

Info

Publication number: JP3663483B2
Application number: JP17843799A
Authority: JP
Inventors: 剛紀勝井; 秀介大内
Original assignee: Sekisui Kasei Co Ltd
Current assignee: Sekisui Kasei Co Ltd
Priority date: 1999-06-24
Filing date: 1999-06-24
Publication date: 2005-06-22
Anticipated expiration: 2019-06-24
Also published as: JP2001002140A

Description

【０００１】
【発明の属する技術分野】
本発明は、主にパソコンに内蔵されるハードディスクやＣＤ−ＲＯＭを挿入するドライブその他の電子機器部品等を包装箱に収納して包装する際、包装箱内に収納される複数の包装対象物を包装箱内面から隔離してかつ相互に接触しないように支持するための中仕切り兼用の包装用支持枠に関するものである。
【０００２】
【従来の技術と発明が解決しようとする課題】
パソコンのハードディスクやＣＤ−ＲＯＭを挿入するドライブその他の電子機器部品を輸送する場合、段ボール箱等の包装箱に複数個が相互に接触しないように支持されて収納される。
【０００３】
このような包装形態において、包装状態での落下に対する強度や緩衝性を低下させることなく、複数の包装対象物を相互に隔離状態にしてコンパクトにかつ容易に包装できるようにするためのものとして、特開平８−１７５５８２号公報に開示の包装用支持枠が提案されている。
【０００４】
この提案の包装用支持枠は、合成樹脂発泡シートを素材として成形し、底板、左右側板さらには天板等の各構成板をヒンジ部を介して連設し、これら各構成板の内面側に、それぞれヒンジ部延在方向に包装対象物に相当する間隔をおいて間隔保持用の凸状部を並設するとともに、各凸状部間に２段の受面を有する受支用の凸部を設け、この凸部の両側端部に包装対象物のコーナーを位置決めするストッパー部を設けており、これにより包装対象物を所定の間隔を保有して、落下時にも底付きのおそれなく支持できるようになっている。
【０００５】
ところで、前記提案の包装用支持枠は、構成素材の発泡シートに対してその内面側に間隔保持用の凸状部および受支用の凸部を形成しており、本来のシート部が包装箱の内面に当接し、これより内方で包装対象物を支持する形態になっている。そのため、本来のシート部つまりは構成素材としての発泡シートは、包装対象物の外方を間隔を存して一回りする長さを必要とし、それだけ発泡シートが長く、使用樹脂量が多くなり、コスト高なものとなっている。
【０００６】
本発明は、上記に鑑みてなしたものであり、包装状態での落下に対する強度や緩衝性を損うことなく、複数の包装対象物を包装箱内面から離してかつ相互に接触させないように支持できる中仕切り兼用の包装用支持枠として、特にコスト低下を図るために、素材シートの長さを短かくし、使用樹脂量を少なくして、しかも従来の支持枠と遜色のない安定かつ良好な支持状態を保持できるようにした包装用支持枠を提供するものである。
【０００７】
【課題を解決するための手段および作用】
上記の課題を解決する本発明の包装用支持枠は、合成樹脂発泡シートより４面の各支持板部が包装対象物に対して斜めになるように成形され、上下部それぞれ左右２面で対をなす前記４面の支持板部がヒンジ部を介して四角筒状に折曲可能に連設され、各支持板部には、それぞれヒンジ部延在方向の所要間隔毎に、包装対象物のコーナー周辺領域を嵌合し保持する保持用凹部が外面側への膨出成形により並設され、前記ヒンジ部および端縁部を包装対象物の４辺外方に位置させて該包装対象物に対し斜めの四角筒状に折曲し組立てた状態で前記各支持板部の保持用凹部により包装対象物の各コーナー周辺領域を保持するように設けられてなり、前記保持用凹部には、包装対象物のコーナー部分を受けるコーナー受部を有するとともに、該コーナー受部の両側受面に連続して、前記ヒンジ部または前記端縁部とともに包装箱内面に当接するように外面側に突出形成された支え脚部を有し、前記コーナー受部を包装箱内面より隔離状態に保持できるように設けられてなることを特徴とする。
【０００８】
上記した本発明の包装用支持枠は、例えばハードディスク等を収容したボックスその他の電子機器部品等の包装に際し、４面の支持板部のうち、下部の左右２面の支持板部を両者間のヒンジ部を中央にして折曲して、両支持板部に有する保持用凹部を相対向させるとともに、上部の左右２面の支持板部を開いた状態にしておいて、包装対象物の下部左右のコーナー周辺領域をそれぞれ前記下部２面の支持板部の各保持用凹部に嵌め入れ、各コーナー部分を各保持用凹部に有するコーナー受部に支持させる。
【０００９】
こうして、複数の包装対象物を下部２面の支持板部の保持用凹部に嵌合し保持させた後、上部２面の支持板部をそれぞれ包装対象物の上に被せるようにヒンジ部で折曲し、それぞれに有する保持用凹部を包装対象物の上部左右のコーナー周辺領域に嵌合して、かつ各コーナー部分に対しコーナー受部を嵌め合せる。
【００１０】
これにより、包装対象物は、四角筒状に組立てられた包装用支持枠の各ヒンジ部および端縁部が該包装対象物の四辺外方に位置した状態で、四つの各コーナー周辺領域が４面の支持板部の保持用凹部に嵌合し保持されることになる。
【００１１】
こうして包装箱内に収納し梱包すると、前記包装用支持枠の各ヒンジ部および端縁部が包装箱の底面部、左右側面部および天面部のそれぞれ中央付近の位置で箱内面に当接し、さらに各支持板部の各コーナー受部の両側受面に連続して外面側に突出形成された各支え脚部が、それぞれ前記包装箱の底面部、左右側面部および天面部のうちの隣接する内面に当接する。すなわち、保持用凹部において包装対象物のコーナー部分を受けるコーナー受部が包装箱内面から隔離状態に保持される。
【００１２】
これにより、収納された各包装対象物は、包装箱の底面部、左右側面部および天面部に対して、コーナー受部近傍の支え脚部および前記ヒンジ部や端縁部により包装箱内面から隔離状態に保持され、特にコーナー部分も包装箱との間に空隙を保有して隔離状態に支持される。
【００１３】
そのため、包装状態での落下に対して底つきのおそれがなく良好な緩衝性を保持でき、特に稜落下に対する緩衝性も良好に保持される。また、各支持板部における嵌合凹部間が適度の弾力性を保有する仕切り部分となって、ヒンジ部延在方向（前後方向）に対する緩衝性も良好に保持される。
【００１４】
しかも、前記のように、各支持板部を包装対象物に対して斜めにして断面略菱形等の四角筒状に組立て、その各支持板部の外面側に膨出形成した保持用凹部に包装対象物の各コーナー周辺領域を保持するようにしたので、これを構成する素材シート自体は、シート部が包装対象物の外周に沿って一回りする従来の支持枠の場合よりも長さが短く、それだけ素材の使用樹脂量を削減できる。
【００１５】
前記の包装用支持枠において、前記ヒンジ部または前記端縁部と前記保持用凹部との間が外面側に凸状をなすように凹設され、該凹設部分が前記四角筒状に折曲し組立てた状態で包装箱内面に当接するように設けられてなるものが好適であり、これにより前記ヒンジ部や前記端縁部での支え強度をさらに高めることができる。
【００１６】
また前記各支持板部における保持用凹部間の仕切り部は、中央部で落し込み形成しておくのが好ましい。これにより、該仕切り部分の弾性力が弱くなりすぎるのを抑制できて間隔保有を良好になし、前後方向に隣接する保持用凹部同士の接触を防止できることになる。
【００１７】
【発明の実施の形態】
次に本発明の実施の形態を図面に示す実施例に基いて説明する。
【００１８】
図１は適度の剛性と弾性を有する比較的腰のある合成樹脂発泡シートから展開状態に一体に成形されてなる本発明に係る包装用支持枠（Ａ）を示し、図２は同包装用支持枠（Ａ）の略示平面図、図３は同包装用支持枠（Ａ）のＸ−Ｘ線における拡大断面図、図４はＹ−Ｙ線における拡大断面図、図５は同包装用支持枠（Ａ）を断面略菱形等の四角筒状に折曲し組立てた状態を一部省略して示す斜視図、図６はＺ−Ｚ線における拡大断面図である。
【００１９】
図において、（１）（２）（３）（４）は、この包装用支持枠（Ａ）を構成する４面の支持板部であり、図６の鎖線で示す包装対象物（Ｂ）に対して斜めになるように成形されて、ヒンジ部（a1）（a2）（a3）を介して正面よりみて四角形（図の場合は略菱形）の筒状に折曲可能に連設されている。すなわち、中央のヒンジ部（a2）を介して左右で対をなす下部２面の支持板部（２）（３）が連設され、さらにこの両支持板部（２）（３）にそれぞれヒンジ部（a1）（a3）を介して、左右で対をなす上部２面の支持板部（１）（４）が連設されており、図５および図６のように前記各ヒンジ部（a1）（a2）（a3）で折曲されることにより各支持板部（１）（２）（３）（４）が被包装対象物（Ｂ）に対して斜めになる四角筒状に組立て得るようになっている。（19）（49）は前記の組立て状態において突合される端縁部である。
【００２０】
図の場合、前記包装用支持枠（Ａ）は、横長の断面略菱形に組立て得るように形成されているが、四角筒状の組立て形態としては、縦長の断面略菱形をなすものであっても、また各ヒンジ部（a1）（a2）（a3）の折曲角度が全て９０°をなすものであってもよい。このほか、下部２面の支持板部（２）（３）と上部２面の支持板部（１）（４）の幅寸法を異にして、上下で異なった角度の四角形の筒状に組立てることができるようにする等、電子機器部品等の包装対象物（Ｂ）の形状に応じて、種々の四角形の筒状に折曲し組立て得るように構成して実施できる。
【００２１】
前記包装用支持枠（Ａ）における４面の各支持板部（１）（２）（３）（４）には、それぞれヒンジ部（a1）（a2）（a3）の延在方向すなわち前後方向の所要間隔毎に、包装対象物（Ｂ）の４つのコーナー周辺領域（b1）（b2）（b3）（b4）を嵌合し保持できるように本来のシート部に対して外面側に向って略直角の三角状に膨出成形された保持用凹部（11）（21）（31）（41）が並設され、これら各保持用凹部（11）（21）（31）（41）間が包装対象物（Ｂ）を隔離する仕切り部（12）（22）（32）（42）として形成されている。
【００２２】
すなわち、前記包装用支持枠（Ａ）は、前記ヒンジ部（a1）（a2）（a3）および前記端縁部（19）（49）を包装対象物（Ｂ）の４辺中央のやや外方に位置させて四角筒状に折曲し組立てた状態において、各支持板部（１）（２）（３）（４）の前記保持用凹部（11）（21）（31）（41）により包装対象物（Ｂ）の各コーナー周辺領域（b1）（b2）（b3）（b4）を嵌合状態に保持できるように形成されている。
【００２３】
そのため、前記の包装形態を可能にするように、各支持板部（１）（２）（３）（４）の幅寸法、および前記保持用凹部（11）（21）（31）（41）の深さや形状が設定されている。つまり前記各保持用凹部（11）（21）（31）（41）は、各支持板部（１）（２）（３）（４）を四角筒状に組立てた状態において包装対象物（Ｂ）に対応した四角形の収納部空間を形成できる形状をなしている。図の場合、各保持用凹部（11）（21）（31）（41）は、前記ヒンジ部（a1）（a2）（a3）および端縁部（19）（49）よりやや内方に形成されている。（13）（14）、（23）（24）、（33）（34）、（43）（44）はそれぞれ各支持板部（１）（２）（３）（４）の前後両端部を示している。
【００２４】
前記各保持用凹部（11）（21）（31）（41）は、それぞれ最深部の頂角部が前記包装対象物（Ｂ）の４隅の各コーナー部分（ｂ）を受ける略直角の三角状をなすコーナー受部（５）として形成されるとともに、該コーナー受部（５）の両側受面に連続して保持用凹部（１）（２）（３）（４）の両側面から外面側に突出形成された支え脚部（６）（６）が設けられている。両支え脚部（６）（６）は、それぞれ前記のように四角筒状に組立てて包装箱（Ｃ）に収納した状態において前記ヒンジ部（a1）（a2）（a3）の一つまたは端縁部（19）（49）と同一平面上に位置して、包装箱（Ｃ）の底面部（c1）、左右両側面部（c2）（c3）および天面部（c4）の各内面に対して前記ヒンジ部（a1）（a2）（a3）の一つまたは端縁部（19）（49）とともに当接するようになっている。これにより、前記コーナー受部（５）を包装箱（Ｃ）の各内面から隔離状態に保持できることになる。
【００２５】
前記両支え脚部（６）（６）は、三角状の各コーナー受部（５）の両側受面に対して直角に近い角度で突出しているのが好ましいが、成形時の型抜きの関係で、保持用凹部（11）（21）（31）（41）の包装状態での受支面となる両側面に対して傾斜面をなして連続している。また前記保持用凹部（11）（21）（31）（41）の両側面における前記支え脚部（６）（６）より開口側の部分が包装時の受支面部（11ａ）（21ａ）（31ａ）（41ａ）として形成されている。
【００２６】
また前記各保持用凹部（11）（21）（31）（41）と、前記ヒンジ部（a1）（a2）（a3）または端縁部（19）（49）との間が外面側へ三角状の凸状をなすように凹設され、該凹設部分（７）（７）が前記四角筒状に折曲し組立てた状態において前記ヒンジ部（a1）（a2）（a3）や端縁部（19）（49）とともに包装箱（Ｃ）の内面に当接して支え作用を果すようになっている。
【００２７】
なお、上記のコーナー受部（５）において、一部を外方へ僅かに突出形成することにより、包装体の稜落下に対する緩衝性をさらに高めることもできる。
【００２８】
また前記各支持板部（１）（２）（３）（４）における各保持用凹部（11）（21）（31）（41）の間の仕切り部（12）（22）（32）（42）は、それぞれの前後両端部（13）（14）、（23）（24）、（33）（34）、（43）（44）と同様に本来のシート部のままに残存させておくこともできるが、保持用凹部（11）（21）（31）（41）の最深部に相当する部分では、前後方向の弾性力が弱くなって、隣接する保持用凹部同士が接触するおそれがあるので、これを防止するため、図のように、仕切り部（12）（22）（32）（42）の中央部を落し込み形成しておくのが望ましい。この落し込み部（12ａ）（22ａ）（32ａ）（42ａ）の形状は、湾曲状に落し込み形成してもよいが、図のように三角状に落し込み形成しておくと、その頂角部がやや硬くなって仕切り部（12）（22）（32）（42）の前後方向の弾性変形に対する耐力が増し、隣接する保持用凹部同士の接触を防止する上で特に好ましい。
【００２９】
なお、上記実施例における各ヒンジ部（a1）（a2）（a3）は、通常素材シートからのトリミングと同時に行なわれる各保持用凹部や支え脚部等の成形の際に、該ヒンジ部相当個所を、例えばＶ溝状に加熱押圧することにより形成する。折曲角度が９０°より小さくなるヒンジ部（a1）（a3）については、前記Ｖ溝を２条にして破断のおそれなく折曲できるようにするのがよい。
【００３０】
上記の構成素材である合成樹脂発泡シートとしては、ポリエステル系樹脂の発泡シートが、適度に剛性および弾性があってかつ強靱性があり、充分なヒンジ強度を保持できることから特に好適に用いられる。中でも、耐熱性等の機械的特性や経済性の点から、ポリエチレンテレフタレート、ポリブチレンテレフタレートを主成分とするものが好適に用いられる。このポリエステル系樹脂は、結晶性であり、この結晶化度を高くするほうが、耐熱性等の機械的特性は向上する。したがって、結晶化度は１５％以上、好ましくは２０％以上とするのがよい。
【００３１】
このほか、ポリスチレン系樹脂、ポリプロピレンやポリエチレン等のポリオレフィン系樹脂、ポリ塩化ビニル樹脂その他の適度の剛性および弾性を有して比較的腰のある合成樹脂発泡シートを用いることができ、中でも前記の発泡シートに非発泡樹脂をラミネートしてヒンジ強度を持たせた発泡シートを好適に用いることができる。さらに比較的硬い発泡シートと、比較的柔軟性のある発泡シートとを積層した発泡シートを用いることもできる。
【００３２】
前記の発泡シートの厚みは、使用素材によっても異なるが、ポリエステル系樹脂発泡シートの場合、０．５〜８．０ｍｍ、好ましく１．０〜３．０ｍｍ程度であり、発泡倍率は、５〜５０倍程度のものが好適である。厚みが前記より小さくなると、充分な支持強度が得られなくなり、また厚みが前記より大きくなると、シートからの成形が困難になる上に嵩高になる。また発泡倍率が前記より小さいと、緩衝性が劣ることになる上、使用樹脂量が多くなり不経済であり、また発泡倍率が前記より大きくなると、強度上問題がある。もちろん包装対象物の種類や使用素材によっては前記以外のものを使用することもできる。
【００３３】
上記した本発明の実施例の包装支持枠（Ａ）は、使用までの取扱においては、展開状態で多数枚を重ねて嵩低くしておくことができる。そして、例えばハードディスク、ＣＤ−ＲＯＭを挿入するドライブ等の電子機器部品その他の包装対象物（Ｂ）を集合状態で段ボール箱等の包装箱（Ｃ）に収納して包装する際に組立てて使用する。
【００３４】
この使用の際、図７に示すように、包装用支持枠（Ａ）を構成する４面の支持板部（１）（２）（３）（４）のうち、下部の左右２面の支持板部（２）（３）を中央のヒンジ部（a2）で折曲し、両支持板部（２）（３）に有する保持用凹部（21）（31）を相対向させ、上部の左右２面の支持板部（１）（４）を開いた状態にしておく。このとき、必要に応じて折曲した下部の支持板部（２）（３）を接着テープ等で止めて前記の折曲状態を保持する。また、下部の支持板部（２）（３）の部分を図７の鎖線で示す包装箱（Ｃ）に嵌め込んで保持するようにしてもよい。
【００３５】
この状態で、包装対象物（Ｂ）の下部左右のコーナー周辺領域（b2）（b3）をそれぞれ前記支持板部（２）（３）の各保持用凹部（21）（31）に嵌め入れ、各コーナー部分（ｂ）を各保持用凹部（21）（31）に有する両コーナー受部（５）（５）に嵌め合せて支持させる。この際、前記保持用凹部（21）（31）は、前記中央のヒンジ部（a2）と前記両コーナー受部（５）（５）近傍の下方向きの支え脚部（６）（６）により支えられており、収納される包装対象物（Ｂ）を良好に保護できる。
【００３６】
前記のように、複数の包装対象物（Ｂ）を下部２面の支持板部（２）（３）の保持用凹部（21）（31）に嵌合し保持させた後、図８のように、下部の両支持板部（２）（３）にヒンジ部（a1）（a3）を介して連設された上部２面の支持板部（１）（４）を、それぞれ包装対象物（Ｂ）の上に被せるように折曲して、保持用凹部（11）（41）を包装対象物（Ｂ）の上部左右のコーナー周辺領域（b1）（b4）に嵌合して、かつ上部両側のコーナー部分（ｂ）に対しコーナー受部（５）（５）を嵌め合せるとともに、包装用支持枠（Ａ）の全体を断面略菱形等の四角筒状をなすように組立てる。そして、必要に応じて、上部２面の支持板部（１）（４）を接着テープ等により止め、該包装用支持枠（Ａ）による前記の包装状態に保持する。
【００３７】
これにより、収納された包装対象物（Ｂ）は、四角筒状に組立てられた包装用支持枠（Ａ）の各ヒンジ部（a1）（a2）（a3）および突合された端縁部（19）（49）が該包装対象物（Ｂ）の四辺略中央のやや外方に位置した状態で、四つの各コーナー周辺領域（b1）（b2）（b3）（b4）が、４面の支持板部（１）（２）（３）（４）の保持用凹部（11）（21）（31）（41）に嵌合し、安定性よく保持されることになる。
【００３８】
こうして包装箱（Ｃ）内に図８のように収納し梱包する。この包装状態では、下部中央のヒンジ部（a2）が包装箱（Ｃ）の底面部（c1）の左右方向の略中央に、またヒンジ部（a1）（a3）が包装箱（Ｃ）の左右両側面部（c2）（c3）の高さ方向の略中央に、さらに端縁部（19）（49）が天面部（c4）の左右方向の略中央にそれぞれ位置して箱内面に当接して、各支持板部（１）（２）（３）（４）は箱内面に対し斜めになる。
【００３９】
また、各支持板部（１）（２）（３）（４）に有する各コーナー受部（５）の両側受面に連続して設けられた支え脚部（６）（６）が、包装箱（Ｃ）の底面部（c1）、左右両側面部（c2）（c3）および天面部（c4）のうちの隣接する両面に当接して支持される。これにより、各支持板部（１）（２）（３）（４）の保持用凹部（11）（21）（31）（41）において包装対象物（Ｂ）のコーナー部分（ｂ）を受けているコーナー受部（５）が、包装箱（Ｃ）の内面から隔離状態に保持される。
【００４０】
したがって、収納された各包装対象物（Ｂ）は、包装箱（Ｃ）の底面部（c1）、左右両側面部（c2）（c3）および天面部（c4）各面に対して、コーナー受部（５）近傍の支え脚部（６）（６）および前記ヒンジ部（a1）（a2）（a3）や端縁部（19）（49）、さらにはヒンジ部や端縁部に連続する凹設部（７）により支えられて、包装箱（Ｃ）内面から隔離状態に保持され、特にコーナー部分（ｂ）も包装箱（Ｃ）との間に空隙（ｄ）を保有して隔離状態に支持される。
【００４１】
そのため、包装対象物（Ｂ）を包装した状態での落下に対して底つきのおそれがなく、良好な緩衝性を保持でき、特に稜落下に対する緩衝性も良好に保持される。また、各支持板部（１）（２）（３）（４）における各保持用凹部（11）（21）（31）（41）間の仕切り部（12）（22）（32）（42）が適度の弾性力を持った緩衝部として作用し、ヒンジ部延在方向すなわち前後方向の緩衝性も良好に保持される。
【００４２】
しかも上記の包装用支持枠（Ａ）は、前記のように各支持板部（１）（２）（３）（４）を包装対象物（Ｂ）に対して斜めにして断面略菱形等の四角筒状に組立て、その各支持板部（１）（２）（３）（４）の外面側に膨出形成した保持用凹部（11）（21）（31）（41）に包装対象物（Ｂ）の各コーナー周辺領域（b1）（b2）（b3）（b4）を保持するようにしたので、これを構成する素材シート自体の長さは、包装対象物の外周に沿って一回りするものに比して短く、それだけ素材の使用樹脂量を削減でき、コスト安価に製造できる。
【００４３】
【発明の効果】
上記したように本発明の包装用支持枠によれば、各支持板部を折曲して四角筒状に組立て構成して、各支持板部に有する保持用凹部に包装対象物のコーナー周辺領域を嵌合して保持させることにより、複数の包装対象物を相互に接触させず、かつ包装箱内面から隔離した状態に安定性よく支持でき、落下に対する底付き防止や緩衝性に優れており、緩衝保護を良好になすことができる。
【００４４】
しかも、本発明の包装用支持枠は、４面の各支持板部を包装対象物に対して斜めにする特殊な支持形態としたことで、素材シートを短かくできて、従来よりも資材の節約になり、コスト安価に製造、提供でき、経済的である。
【図面の簡単な説明】
【図１】本発明に係る包装用支持枠の１実施例を示す展開状態の斜視図である。
【図２】同上の包装用支持枠略示平面図である。
【図３】前図のＸ−Ｘ線における拡大断面図である。
【図４】前図のＹ−Ｙ線における拡大断面図である。
【図５】同上の包装用支持枠を四角筒状に組立てた状態を一部省略して示す斜視図である。
【図６】前図のＺ−Ｚ線における拡大断面図である。
【図７】包装対象物の収納状態を説明する断面図である。
【図８】包装箱に収納し包装した状態の断面図である。
【符号の説明】
（Ａ）包装用支持枠
（a1）（a2）（a3）ヒンジ部
（Ｂ）包装対象物
（b1）（b2）（b3）（b4）コーナー周辺領域
（ｂ）コーナー部分
（Ｃ）包装箱
（c1）底面部
（c2）（c3）左右両側面部
（c4）天面部
（１）（２）（３）（４）支持板部
（11）（21）（31）（41）保持用凹部
（12）（22）（32）（42）仕切り部
（５）コーナー受部
（６）（６）支え脚部
（７）（７）凹設部
（19）（49）端縁部[0001]
BACKGROUND OF THE INVENTION
In the present invention, when a hard disk built in a personal computer, a drive for inserting a CD-ROM, or other electronic device parts are stored in a packaging box and packaged, a plurality of packaging objects stored in the packaging box are stored. The present invention relates to a packaging support frame that is also used as a partition and is supported so as to be isolated from the inner surface of the packaging box and not to contact each other.
[0002]
[Prior art and problems to be solved by the invention]
When transporting a hard disk of a personal computer, a drive for inserting a CD-ROM, or other electronic equipment parts, a plurality of such parts are supported and stored in a packaging box such as a cardboard box so as not to contact each other.
[0003]
In such a packaging form, without reducing the strength and shock-absorbing properties against dropping in the packaging state, a plurality of packaging objects can be separated from each other in a compact and easy packaging, A packaging support frame disclosed in JP-A-8-175582 has been proposed.
[0004]
This proposed packaging support frame is formed from a synthetic resin foam sheet, and each component plate such as a bottom plate, left and right side plates, and a top plate is continuously connected via a hinge portion, and is provided on the inner surface side of each component plate. In addition, the convex portions for holding the gaps are arranged in parallel with the interval corresponding to the packaging object in the extending direction of the hinge portions, and the convex portions for receiving and receiving having two receiving surfaces between the convex portions. And provided with stopper portions for positioning the corners of the packaging object at both end portions of the convex part, thereby holding the packaging object at a predetermined interval and supporting it without dropping at the bottom. It is like that.
[0005]
By the way, the proposed packaging support frame is formed with a convex portion for holding a space and a convex portion for receiving on the inner surface side of the foamed sheet of the constituent material, and the original sheet portion is a packaging box. It is in the form which contacts the inner surface of this and supports a packaging target object inward from this. Therefore, the original sheet part, that is, the foam sheet as a constituent material, requires a length that goes around the outside of the packaging object with a space, the foam sheet is long, and the amount of resin used increases. Cost is high.
[0006]
The present invention has been made in view of the above, and supports a plurality of objects to be packaged away from the inner surface of the packaging box and not in contact with each other without impairing the strength and shock-absorbing property against dropping in the packaging state. As a packaging support frame that can also be used as a partition, in order to reduce costs, the length of the material sheet is shortened, the amount of resin used is reduced, and stable and good support comparable to conventional support frames. The present invention provides a packaging support frame that can maintain its state.
[0007]
[Means and Actions for Solving the Problems]
The support frame for packaging according to the present invention that solves the above problems is formed such that each of the four support plate portions is inclined with respect to the packaging object from the synthetic resin foam sheet, and the upper and lower portions are respectively paired on the left and right surfaces. via the hinge portion support plate portion of the four surfaces forming the is bendable to continuously to square tube shape, each support plate portion, each predetermined interval of the hinge portion extending directions, the object to be packaged The holding recesses for fitting and holding the corner peripheral region are juxtaposed by bulging to the outer surface side, and the hinge part and the edge part are positioned on the outer side of the four sides of the packaging object to be placed on the packaging object. In contrast , each holding plate is provided with a holding recess in each support plate so as to hold a region around each corner of the packaging object in a state of being folded into an oblique rectangular tube shape. A corner receiving portion for receiving a corner portion of the object, -Continuing on both side receiving surfaces of the receiving portion, the supporting portion is formed on the outer surface side so as to come into contact with the inner surface of the packaging box together with the hinge portion or the edge portion, and the corner receiving portion is packaged It is provided so that it can be kept in an isolated state from the inner surface.
[0008]
When the packaging support frame of the present invention described above is used for packaging, for example, a box or other electronic device component containing a hard disk or the like, among the four support plate portions, the lower left and right support plate portions are arranged between the two. Bending with the hinge part in the center, the holding recesses on both support plate parts are made to face each other, and the left and right support plate parts on the upper and lower sides are left open. Each corner peripheral region is fitted into each holding concave portion of the supporting plate portion of the lower two surfaces, and each corner portion is supported by a corner receiving portion included in each holding concave portion.
[0009]
In this way, after a plurality of packaging objects are fitted and held in the holding recesses of the supporting plate portions on the lower two surfaces, the supporting plate portions on the upper two surfaces are folded at the hinges so as to cover the packaging objects, respectively. Each of the holding recesses is bent and fitted into the upper left and right corner peripheral areas of the packaging object, and the corner receiving portion is fitted to each corner portion.
[0010]
As a result, the packaging object has four four corner peripheral regions in a state in which the hinge portions and the edge portions of the packaging support frame assembled in a rectangular tube shape are located on the outer sides of the packaging object. It will be fitted and held in the holding recess of the surface support plate.
[0011]
When the packaging box is stored and packed in this manner, each hinge portion and end edge portion of the packaging support frame abuts on the inner surface of the box at positions near the center of the bottom surface portion, the left and right side surface portions, and the top surface portion of the packaging box. Each supporting leg formed to protrude outward from the both side receiving surfaces of each corner receiving portion of each supporting plate portion is an adjacent inner surface of the bottom, left and right side portions, and top surface portion of the packaging box, respectively. Abut. That is, the corner receiving portion that receives the corner portion of the packaging object in the holding recess is held in an isolated state from the inner surface of the packaging box.
[0012]
Thereby, each packaged object to be stored is isolated from the inner surface of the packaging box by the supporting leg portion near the corner receiving portion and the hinge portion and the edge portion with respect to the bottom surface portion, the left and right side surface portions, and the top surface portion of the packaging box. In particular, the corner portion is also supported in an isolated state with a space between the packaging box and the corner portion.
[0013]
For this reason, there is no fear of bottoming when dropped in a packaged state, and good shock-absorbing properties can be maintained. Moreover, between the fitting recessed parts in each support plate part becomes a partition part which has moderate elasticity, and the buffering property with respect to a hinge part extension direction (front-back direction) is also hold | maintained favorably.
[0014]
In addition, as described above, each support plate portion is assembled with a rectangular tube shape having a substantially rhombic cross section, etc., obliquely with respect to the packaging object, and packaged in a holding recess that is bulged on the outer surface side of each support plate portion. Since the area around each corner of the object is held, the material sheet itself constituting the object is shorter in length than in the case of the conventional support frame in which the sheet part goes around along the outer periphery of the package object. Therefore, the amount of resin used can be reduced accordingly.
[0015]
In the packaging support frame, the hinge portion or the edge portion and the holding recess are recessed so as to form a convex shape on the outer surface side, and the recessed portion is bent into the rectangular tube shape. What is provided so that it may contact | abut to the packaging box inner surface in the assembled state is suitable, and, thereby, the support strength in the said hinge part or the said edge part can further be improved.
[0016]
Moreover, it is preferable that the partition part between the holding recessed parts in each of the support plate parts is formed by dropping at the center part. Thereby, it can suppress that the elastic force of this partition part becomes weak too much, makes space holding favorable, and can prevent the contact between the holding recessed parts adjacent to the front-back direction.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described based on examples shown in the drawings.
[0018]
FIG. 1 shows a packaging support frame (A) according to the present invention, which is integrally formed in a developed state from a relatively stiff synthetic resin foam sheet having moderate rigidity and elasticity, and FIG. 2 shows the packaging support. 3 is a schematic plan view of the frame (A), FIG. 3 is an enlarged sectional view taken along line XX of the packaging support frame (A), FIG. 4 is an enlarged sectional view taken along line YY, and FIG. FIG. 6 is an enlarged cross-sectional view taken along the line ZZ. FIG. 6 is a perspective view showing the frame (A) with a part thereof omitted in a state where the frame (A) is bent and assembled into a square cylinder having a substantially rhombic cross section.
[0019]
In the figure, (1), (2), (3), and (4) are four-sided support plate portions that constitute the packaging support frame (A), and the packaging object (B) indicated by the chain line in FIG. It is formed so as to be inclined with respect to the cylinder, and is continuously connected in a quadrangular (substantially diamond-shaped in the figure) cylindrical shape as viewed from the front via hinges (a1) (a2) (a3). . That is, the lower two support plate portions (2) and (3) that are paired on the left and right sides are connected via the central hinge portion (a2), and the support plate portions (2) and (3) are hinged respectively. Supporting plate portions (1) and (4) having two upper surfaces that are paired on the left and right sides are connected via the portions (a1) and (a3), and the hinge portions (a1) are connected as shown in FIGS. ) (A2) (a3) can be assembled into a square cylinder in which each support plate (1), (2), (3), and (4) is slanted with respect to the packaged object (B). It is like that. (19) and (49) are end edges that are abutted in the assembled state.
[0020]
In the case of the figure, the packaging support frame (A) is formed so that it can be assembled in a horizontally long cross-section with a roughly rhombus shape, but as a rectangular tube-shaped assembly form, it has a vertically long cross-section with a roughly rhombus shape. Alternatively, all the bending angles of the hinge portions (a1), (a2), and (a3) may be 90 °. In addition, the widths of the support plate portions (2) (3) on the lower two surfaces and the support plate portions (1) (4) on the upper two surfaces are made different, and assembled into a rectangular tube having different angles at the top and bottom. For example, it can be configured to be folded and assembled into various rectangular cylinders according to the shape of the packaging object (B) such as an electronic device part.
[0021]
The four support plate portions (1), (2), (3), and (4) of the packaging support frame (A) are respectively extended in the extending direction of the hinge portions (a1), (a2), and (a3), that is, the front-rear direction. The four corner peripheral areas (b1), (b2), (b3), and (b4) of the packaging object (B) can be fitted and held at each required interval toward the outer surface with respect to the original sheet portion. Holding recesses (11), (21), (31), and (41) that are bulged and formed into a substantially right triangular shape are arranged side by side. Between these holding recesses (11), (21), (31), and (41) It forms as a partition part (12) (22) (32) (42) which isolates a packaging target object (B).
[0022]
That is, the packaging support frame (A) has the hinge portions (a1) (a2) (a3) and the end edge portions (19) (49) slightly outside the center of the four sides of the packaging object (B). In the state where the support plate portions (1), (2), (3), and (4) are held, the holding recesses (11), (21), (31), and (41) Each corner peripheral area (b1) (b2) (b3) (b4) of the packaging object (B) is formed so as to be held in a fitted state.
[0023]
Therefore, the width dimensions of the support plate portions (1), (2), (3), and (4) and the holding recesses (11), (21), (31), and (41) so as to enable the packaging form described above. The depth and shape are set. That is, each of the holding recesses (11), (21), (31), and (41) is an object to be packaged (B) in a state where the support plate portions (1), (2), (3), and (4) are assembled into a rectangular cylinder. ) To form a rectangular storage space. In the case of the figure, each holding recess (11) (21) (31) (41) is formed slightly inward from the hinges (a1) (a2) (a3) and the end edges (19) (49). Has been. (13) (14), (23) (24), (33) (34), (43) (44) are the front and rear ends of each support plate (1) (2) (3) (4). Show.
[0024]
Each of the holding recesses (11), (21), (31), and (41) is a substantially right-angled triangle in which the deepest apex portion receives each corner portion (b) of the four corners of the packaging object (B). And is formed as a corner receiving portion (5) having a shape, and is continuous with both side receiving surfaces of the corner receiving portion (5) from both side surfaces of the holding recesses (1), (2), (3), and (4). Supporting leg portions (6) and (6) are formed so as to protrude to the side. Both support legs (6) and (6) are each one or end of the hinges (a1), (a2), and (a3) in a state where they are assembled into a rectangular cylinder as described above and stored in the packaging box (C). Located on the same plane as the edges (19) and (49), with respect to the inner surfaces of the bottom (c1), left and right side (c2) (c3), and top (c4) of the packaging box (C) One of the hinge portions (a1), (a2) and (a3) or the edge portions (19) and (49) are brought into contact with each other. Thereby, the said corner receiving part (5) can be hold | maintained in isolation from each inner surface of a packaging box (C).
[0025]
The support legs (6) and (6) preferably project at an angle close to a right angle with respect to both side receiving surfaces of each of the triangular corner receiving portions (5). Thus, the holding recesses (11), (21), (31), and (41) are continuous with an inclined surface with respect to both side surfaces that are the receiving and supporting surfaces in the packaged state. The holding recesses (11), (21), (31), and (41) on both sides of the support legs (6) and (6) are located on the opening side of the support surface (11a) (21a) ( 31a) (41a).
[0026]
Further, the space between each holding recess (11) (21) (31) (41) and the hinge (a1) (a2) (a3) or the end edge (19) (49) is triangular toward the outer surface. The hinge portions (a1), (a2), (a3) and end edges are formed in a state where the concave portions (7) (7) are bent and assembled into the rectangular tube shape. Together with the parts (19) and (49), they come into contact with the inner surface of the packaging box (C) to perform a supporting action.
[0027]
In addition, in said corner receiving part (5), the buffer property with respect to the ridge fall of a package body can further be improved by forming a part protruding outwards slightly.
[0028]
Further, the partition portions (12) (22) (32) (between the holding recesses (11) (21) (31) (41) in the support plate portions (1) (2) (3) (4) ( 42) is left as it is in the original sheet portion as in the respective front and rear end portions (13) (14), (23) (24), (33) (34), (43) (44). However, in the portion corresponding to the deepest portion of the holding recesses (11), (21), (31), and (41), the elastic force in the front-rear direction is weakened, and there is a possibility that adjacent holding recesses may come into contact with each other. Therefore, in order to prevent this, it is desirable to drop and form the central part of the partition parts (12) (22) (32) (42) as shown in the figure. The shape of the drop portions (12a), (22a), (32a), and (42a) may be formed in a curved shape, but if it is formed in a triangular shape as shown in the figure, its apex angle This is particularly preferable in terms of preventing the contact between adjacent holding recesses by increasing the resistance of the partition portions (12), (22), (32), and (42) to elastic deformation in the front-rear direction.
[0029]
The hinge portions (a1), (a2), and (a3) in the above-described embodiment are the portions corresponding to the hinge portions when forming the holding recesses and support legs, etc., which are usually performed simultaneously with trimming from the material sheet. Is formed by, for example, heating and pressing in a V-groove shape. As for the hinge portions (a1) and (a3) whose bending angle is smaller than 90 °, it is preferable that the V-groove is formed in two lines so that it can be bent without fear of breaking.
[0030]
As the synthetic resin foam sheet as the constituent material, a polyester resin foam sheet is particularly preferably used since it has moderate rigidity and elasticity, has toughness, and can maintain a sufficient hinge strength. Among these, those mainly composed of polyethylene terephthalate and polybutylene terephthalate are preferably used from the viewpoint of mechanical properties such as heat resistance and economical efficiency. This polyester resin is crystalline, and mechanical properties such as heat resistance are improved by increasing the crystallinity. Therefore, the crystallinity is 15% or more, preferably 20% or more.
[0031]
In addition, a polystyrene resin, a polyolefin resin such as polypropylene and polyethylene, a polyvinyl chloride resin, and other synthetic resin foam sheets having moderate rigidity and elasticity can be used. A foamed sheet obtained by laminating a non-foamed resin on the sheet to give a hinge strength can be suitably used. Furthermore, a foam sheet in which a relatively hard foam sheet and a relatively flexible foam sheet are laminated can also be used.
[0032]
The thickness of the foamed sheet varies depending on the material used, but in the case of a polyester-based resin foamed sheet, it is 0.5 to 8.0 mm, preferably about 1.0 to 3.0 mm, and the expansion ratio is 5 to 50. About double is preferable. When the thickness is smaller than the above, sufficient support strength cannot be obtained, and when the thickness is larger than the above, molding from a sheet becomes difficult and bulky. Further, if the expansion ratio is smaller than the above, the buffering property is inferior, and the amount of resin used increases, which is uneconomical. If the expansion ratio is larger than the above, there is a problem in strength. Of course, other than the above can be used depending on the type of packaging object and the material used.
[0033]
The packaging support frame (A) of the above-described embodiment of the present invention can be made bulky by stacking a large number of sheets in the unfolded state in handling until use. Then, for example, electronic device parts such as a hard disk and a drive for inserting a CD-ROM and other packaging objects (B) are assembled and used when they are stored in a packaging box (C) such as a cardboard box and packed. .
[0034]
In this use, as shown in FIG. 7, among the four support plate portions (1), (2), (3), and (4) constituting the packaging support frame (A), the lower left and right surfaces are supported. The plate parts (2) and (3) are bent at the central hinge part (a2), and the holding recesses (21) and (31) on both support plate parts (2) and (3) are made to face each other. The two support plate portions (1) and (4) are left open. At this time, the lower support plate portions (2) and (3) bent as necessary are stopped with an adhesive tape or the like to hold the bent state. Further, the lower support plate portions (2) and (3) may be fitted and held in the packaging box (C) indicated by the chain line in FIG.
[0035]
In this state, the lower left and right corner peripheral areas (b2) and (b3) of the packaging object (B) are fitted into the holding recesses (21) and (31) of the support plate parts (2) and (3), respectively. Each corner portion (b) is fitted to and supported by both corner receiving portions (5) and (5) in the holding recesses (21) and (31). At this time, the holding recesses (21) and (31) are formed by the central hinge part (a2) and the downward supporting leg parts (6) and (6) in the vicinity of the corner receiving parts (5) and (5). It is supported and the packaged object (B) to be stored can be well protected.
[0036]
As described above, after a plurality of packaging objects (B) are fitted and held in the holding recesses (21) and (31) of the supporting plate portions (2) and (3) on the lower two surfaces, as shown in FIG. In addition, the upper two support plate portions (1) and (4) connected to the lower support plate portions (2) and (3) via hinge portions (a1) and (a3), respectively, B) Fold it over the top, fit the holding recess (11) (41) into the upper left and right corner peripheral areas (b1) (b4) of the packaging object (B), and The corner receiving portions (5) and (5) are fitted to the corner portions (b) on both sides, and the entire support frame for packaging (A) is assembled so as to form a square cylinder shape such as a substantially diamond-shaped cross section. Then, if necessary, the support plate portions (1) and (4) on the upper two surfaces are stopped with an adhesive tape or the like, and held in the packaging state by the packaging support frame (A).
[0037]
As a result, the packaged object (B) stored in the packaging support frame (A) assembled into a rectangular cylinder is hinged (a1) (a2) (a3) and the end edge (19 ) (49) is located slightly outside the center of the four sides of the packaging object (B), and the four corner peripheral areas (b1) (b2) (b3) (b4) are supported on four sides. The plate portions (1), (2), (3), and (4) are fitted into the holding recesses (11), (21), (31), and (41), and are held stably.
[0038]
In this way, it accommodates and packs in a packaging box (C) as shown in FIG. In this packaging state, the hinge portion (a2) at the lower center is at the approximate center in the left-right direction of the bottom surface portion (c1) of the packaging box (C), and the hinge portions (a1) (a3) are at the left and right sides of the packaging box (C). The side edges (c2) and (c3) are positioned approximately at the center in the height direction, and the end edges (19) and (49) are positioned approximately at the center in the left-right direction of the top surface (c4) and contact the inner surface of the box. The support plate portions (1), (2), (3), and (4) are inclined with respect to the inner surface of the box.
[0039]
In addition, support leg portions (6) (6) provided continuously on both side receiving surfaces of each corner receiving portion (5) of each supporting plate portion (1) (2) (3) (4) are packaged. The bottom surface portion (c1), the left and right side surface portions (c2) (c3), and the top surface portion (c4) of the box (C) are abutted and supported. Thus, the corner portions (b) of the packaging object (B) are received in the holding recesses (11), (21), (31), and (41) of the respective support plate portions (1), (2), (3), and (4). The corner receiving portion (5) is held in an isolated state from the inner surface of the packaging box (C).
[0040]
Therefore, each packaged object (B) stored in the packaging box (C) has a corner receiving portion with respect to the bottom surface (c1), the left and right side surfaces (c2) (c3), and the top surface (c4). (5) Support legs (6) and (6) in the vicinity and the hinges (a1) (a2) (a3) and end edges (19) and (49), as well as recesses that continue to the hinge and end edges It is supported by the installation part (7) and is kept in an isolated state from the inner surface of the packaging box (C), and in particular, the corner part (b) also has an air gap (d) between the packaging box (C) and is in an isolated state. Supported.
[0041]
Therefore, there is no possibility of bottoming out with respect to the fall in the state in which the packaging object (B) is packaged, and a good buffering property can be maintained, and particularly the buffering property with respect to the ridge dropping is also maintained well. Moreover, the partition part (12) (22) (32) (42) between each recessed part (11) (21) (31) (41) for each holding | maintenance in each support plate part (1) (2) (3) (4) ) Acts as a buffer portion having an appropriate elastic force, and the buffer property in the extending direction of the hinge portion, that is, the front-rear direction is also well maintained.
[0042]
Moreover, the packaging support frame (A) has a substantially diamond-shaped cross section with the support plate portions (1), (2), (3), and (4) inclined with respect to the packaging object (B) as described above. Assembling into a rectangular tube, the object to be packaged in the holding recesses (11), (21), (31), and (41) that bulges on the outer surface of each support plate (1) (2) (3) (4) Since each corner peripheral area (b1), (b2), (b3), and (b4) in (B) is held, the length of the material sheet itself that constitutes this is one round along the outer periphery of the packaging object. The amount of resin used for the material can be reduced, and the cost can be reduced.
[0043]
【The invention's effect】
As described above, according to the packaging support frame of the present invention, each support plate portion is bent and assembled into a rectangular tube shape, and the corner peripheral region of the packaging object is formed in the holding recess portion of each support plate portion. By fitting and holding, it is possible to stably support a plurality of packaging objects without contacting each other and isolated from the inner surface of the packaging box, and is excellent in prevention of bottoming and buffering against dropping, Buffer protection can be made well.
[0044]
In addition, the packaging support frame of the present invention has a special support configuration in which each of the four support plate portions is slanted with respect to the packaging object, so that the material sheet can be made shorter and the material of the support frame can be made shorter than before. It is economical, can be manufactured and provided at low cost, and is economical.
[Brief description of the drawings]
FIG. 1 is a perspective view of an unfolded state showing an embodiment of a packaging support frame according to the present invention.
FIG. 2 is a schematic plan view of the packaging support frame same as above.
FIG. 3 is an enlarged cross-sectional view taken along line XX in the previous figure.
FIG. 4 is an enlarged cross-sectional view taken along line YY in the previous figure.
FIG. 5 is a perspective view showing a state where the packaging support frame is assembled into a rectangular tube shape with a part omitted.
FIG. 6 is an enlarged cross-sectional view taken along line ZZ in the previous figure.
FIG. 7 is a cross-sectional view illustrating a storage state of a packaging object.
FIG. 8 is a cross-sectional view showing a state where the product is stored in a packaging box and packaged.
[Explanation of symbols]
(A) Support frame for packaging (a1) (a2) (a3) Hinge part (B) Package object (b1) (b2) (b3) (b4) Corner peripheral area (b) Corner part (C) Packaging box ( c1) Bottom (c2) (c3) Left and right sides (c4) Top (1) (2) (3) (4) Support plate (11) (21) (31) (41) Recessed recess (12 ) (22) (32) (42) Partition (5) Corner receiving part (6) (6) Support leg (7) (7) Recessed part (19) (49) Edge

Claims

Synthetic resin each support plate of foamed four sides of the seat are shaped so oblique to a packaging object, the support plate portion of the four surfaces forming a pair in upper and lower portions left and right sides via a hinge portion Each support plate is provided with a concavity for holding and holding the corner peripheral area of the packaging object at each required interval in the extending direction of the hinge. In a state where the hinge part and the end edge part are positioned on the outer sides of the four sides of the packaging object and are folded and assembled into an oblique rectangular tube shape with respect to the packaging object. It is provided to hold each corner peripheral area of the packaging object by the holding recess of each support plate part,
The holding recess has a corner receiving portion for receiving a corner portion of the packaging object, and is in contact with the inner surface of the packaging box together with the hinge portion or the end edge portion, continuously on both side receiving surfaces of the corner receiving portion. A support frame for packaging, comprising a support leg projectingly formed on the outer surface side so that the corner receiving portion can be held in an isolated state from the inner surface of the packaging box.

The inner side of the packaging box in a state where the hinge part or the edge part and the holding concave part are recessed so as to form a convex shape on the outer surface side, and the concave part is bent and assembled into the rectangular tube shape. The packaging support frame according to claim 1, wherein the packaging support frame is provided so as to be in contact with the packaging.

The support frame for packaging according to claim 1 or 2, wherein a partition portion between the holding concave portions in each support plate portion is formed by dropping at a central portion.