【０００１】
【発明の属する技術分野】
本発明は、収容品の周りに複数配置され、収容品の側端部が挿入部に挿入されることにより収容品が複数の緩衝部材により保持された状態で収容箱内に収容可能な梱包用緩衝部材に関する。
【０００２】
【従来の技術】
収容品の周りに複数配置され、収容品の側端部が挿入部に挿入されることにより収容品が複数の緩衝部材により保持された状態で収容箱内に収容可能な従来の梱包用緩衝部材としては、図６に示すような形状のものが広く使用されている。図６に示す梱包用緩衝部材Ｃは、発泡ポリスチレンや発泡ポリオレフィン等の緩衝性を有する材料で形成される。梱包用緩衝部材Ｃには、側壁部５０と、側壁部５０から垂直に、四方を取り囲むように立設された周壁部５２ａ，５２ｂ，５２ｃ，５２ｄとにより、収容品の側端部を挿入する挿入部５４が形成されている。梱包用緩衝部材Ｃは、一つの収容品に対して二つ用いられ、それぞれの挿入部５４を対向させて、収容品の側端部をそれぞれ挿入部５４に収容して、収容品と共に収容箱に収容される。
【０００３】
挿入部５４を取り囲む側壁部５０および周壁部５２ａ，５２ｂ，５２ｃ，５２ｄの外壁には、落下時の衝撃等を吸収するための支持突起が形成されている。
側壁部５０の外壁には、支持突起６４，６４が突設され、側方の周壁部５２ｂ，５２ｄには、支持突起６６，６６が突設されている。梱包用緩衝部材Ｃが収容箱に収容された際には、支持突起６４，６４，６６，６６の先端は、収容箱の内側面に当接する。
収容品の上面に当接する上の周壁部５２ａの外壁には、上方に延びる支持突起５６，６０が形成され、収容品の下面に当接する下の周壁部５２ｃの外壁には、下方に延びる支持突起５８，６２が形成されている。支持突起５６，６０は収容箱の内天井面に、支持突起５８，６２は収容箱の内底面に、それぞれ当接する。
【０００４】
図６および梱包用緩衝部材Ｃの側面図の図７に示すように、上下の周壁部５２ａ，５２ｃから突設された支持突起５６，５８，６０，６２は、周壁部５２ａ，５２ｃの挿入部５４の開口側の端から、側壁部５０の方向に水平方向に延び、側壁部５０の外壁の支持突起５６ａ，５８ａ，６０ａ（図示せず），６２ａ（図示せず）にそれぞれ連結する。支持突起５６ａ，５８ａ，６０ａ，６２ａは、側壁部５０の外壁に上下方向に延びて突設され、支持突起６４と連結する。
【０００５】
上記梱包用緩衝部材Ｃが、挿入部５４に収容品を挿入した状態で得られる緩衝距離（ストローク）は、図７に示すように、梱包用緩衝部材Ｃの上半部では、支持突起５６，６０の上端から挿入部５４の上面までのｌｃ１、下半部では、支持突起５８，６２の下端から挿入部５４の下面までのｌｃ２となる。
【０００６】
収容品を収容する収容箱内の緩衝部材の嵩を増さずに、即ち梱包用緩衝部材Ｃの支持突起５６，５８，６０，６２を上下に延ばさずに、梱包用緩衝部材Ｃの上下方向の緩衝距離をより長くして緩衝性能を上げる工夫を施した従来の梱包用緩衝部材Ｄを、図８および図９に示す。梱包用緩衝部材Ｄにおいては、支持突起５６，５８，６０，６２は、側壁部５０の上辺および下辺から上方および下方に突出して設けられ、挿入部５４の上下の投影に当たる部分には形成されない。即ち、支持突起５６，５８，６０，６２は、挿入部５４の上下の投影からは外れるように形成される。これにより、梱包用緩衝部材Ｄの緩衝動作は、上の支持突起５６，６０から下の支持突起５８，６２までの距離で行われることとなる。即ち、緩衝距離は上下にそれぞれｌｄ１，ｌｄ２となる。
このように、上下の支持突起５６，５８，６０，６２を、挿入部５４の上下方向の投影から外れた位置に形成することで、梱包用緩衝部材Ｃに比較して、収容箱内の嵩を増さずに、緩衝距離を長くとることができる。
【０００７】
【発明が解決しようとする課題】
図６および図７に示す従来の梱包用緩衝部材Ｃにおいては、上述の様に、緩衝距離が短いという課題がある。
一方、図８および図９に示す従来の梱包用緩衝材Ｄにおいては、緩衝距離は梱包用緩衝部材Ｃに比較して長く取れる。しかしながら、上下方向の衝撃が加えられた際に、上下の周壁部５２ａ，５２ｃに衝撃が加わることで周壁部５２ａ，５２ｃが破損してしまったり、梱包用緩衝部材Ｄが挿入部５４の開口側に倒れて収容品が挿入部５４から脱落してしまったりすることがあるといった課題がある。
【０００８】
本発明は上記課題を解決すべくなされ、その目的とするところは、緩衝距離が長くとれると共に、破損や収容品の脱落が発生しにくい梱包用緩衝部材を提供することにある。
【０００９】
【課題を解決するための手段】
本発明に係る梱包用緩衝部材は、上記課題を解決するために、以下の構成を備える。すなわち、側壁部と該側壁部の周縁に沿って起立する周壁部とにより囲まれた挿入部を有すると共に外壁に支持突起が形成された緩衝部材であって、収容品の周りに複数配置され、収容品の側端部が挿入部に挿入されることにより収容品が複数の緩衝部材により保持された状態で収容箱内に収容可能な梱包用緩衝部材において、前記支持突起は、前記挿入部の上下方向の投影から外れた位置に、前記側壁部から上方および下方に突出して配設され、前記収容箱の内天井面および内底面に当接する第一の支持突起と、該第一の支持突起の下方に延びる支持突起側の前記周壁部下面に、前記収容箱の内底面に当接または近接するように形成された第二の支持突起とを具備することを特徴とする。
これによれば、周壁部または側壁部の鉛直部から上方および下方に突出する第一の支持突起によって長い緩衝距離がとれると共に、第二の支持突起が、周壁部にかかる衝撃を吸収し、また梱包用緩衝部材が倒れるのを防ぐ。
【００１０】
さらに、前記第二の支持突起は、前記第一の支持突起よりも小径に形成されていることを特徴とする。
また、前記第二の支持突起は、先細に形成されるていることを特徴とする。
これによれば、第二の支持突起は、第一の支持突起より小径、または先細に形成されることで縮みやすくなり、第一の支持突起の緩衝動作を妨げない。
【００１１】
また、前記第二の支持突起は、前記側壁部側の側面が、先端に向かうにしたがって前記挿入部の開口側の方向に斜めに形成されることにより、荷重が掛かった際、該挿入部の開口側に変形するよう構成されていることを特徴とする。
これによれば、収容品に衝撃が加えられた際に第二の支持突起が挿入部の開口側に変形するため、梱包用緩衝部材が挿入部の開口側へより倒れにくくなり、収容品が挿入部から脱落するのを防ぐことができる。
【００１２】
また、前記第二の支持突起は、前記周壁部下面の、前記挿入部の開口側の端部に配設されていることを特徴とする。
これによれば、第二の支持突起が周壁部の開口側端部を支持するため、梱包用緩衝部材が挿入部の開口側へ、より倒れにくくなる。
【００１３】
さらに、前記第一の支持突起の上方に延びる支持突起側の前記周壁部上面に、前記収容箱の内天井面に当接または近接するように形成された第三の支持突起を具備することを特徴とする。
これによれば、収容品の上方への衝撃に対しても、上の周壁部の破損および梱包用緩衝部材が上方に回転することによる収容品の挿入部からの脱落を防ぐことができる。
【００１４】
【発明の実施の形態】
以下、本発明に係る梱包用緩衝部材の好適な実施の形態を、図面に基づいて説明する。
図１は、収容品の周りに複数配置され、収容品の側端部が挿入部に挿入されることにより収容品が複数の緩衝部材により保持された状態で収容箱内に収容可能な、本発明に係る梱包用緩衝部材Ａの斜視図である。図２はその側面図である。梱包用緩衝部材Ａは、発泡ポリスチレンや発泡ポリオレフィン等の緩衝性を有する材料で形成される。梱包用緩衝部材Ａには、側壁部２と、側壁部２の周縁に沿って、側壁部２と垂直に、四方を取り囲むように立設された周壁部４ａ，４ｂ，４ｃ，４ｄとにより、収容品の矩形の側端部を挿入する挿入部６が形成されている。
梱包用緩衝部材Ａは、一つの収容品に対して二つ用いられ、それぞれの挿入部６を対向させて、収容品の側端部をそれぞれ挿入部６に収容して、収容品と共に収容箱に収容される。
【００１５】
挿入部６を取り囲む側壁部２および周壁部４ａ，４ｂ，４ｃ，４ｄの外壁には、収容箱との間で落下時の衝撃等を吸収するための支持突起が形成されている。側壁部２の外壁には、支持突起１６，１６が突設され、側方の周壁部４ｂ，４ｄには、支持突起１８，１８が突設されている。梱包用緩衝部材Ａが収容箱に収容された際には、支持突起１６，１６，１８，１８の先端は、収容箱の内側面に当接する。
側壁部２には、その上辺および下辺からそれぞれ上方および下方に突出する、第一の支持突起８ａ，８ｂ，１２ａ，１２ｂが形成されている。図２に示すように、第一の支持突起８ａ，８ｂ，１２ａ，１２ｂは、挿入部６の上下の投影からは外れるよう設けられる。また、第一の支持突起８ａ，８ｂ，１２ａ，１２ｂは、側壁部２の外壁に上下方向に延びて突設され支持突起１６と連結する支持突起８ｃ，１２ｃ（図示せず）にそれぞれ連結する。
【００１６】
第一の支持突起８ａ，８ｂ，１２ａ，１２ｂは側壁部２から上方および下方に突出して収容箱の内天井面および内底面に当接するよう設けられているため、上の第一の支持突起８ａ，１２ａ、側壁部２および下の第一の支持突起８ｂ，１２ｂは、収容箱の内天井面および内底面をほぼ直線状に結んでに配置されることとなる。そのため、梱包用緩衝部材Ａの上下方向の緩衝距離は、上方にはｌａ１、下方にはｌａ２となる。
【００１７】
第一の支持突起の下方に延びる支持突起８ｂ，１２ｂ側の周壁部４ｃ、言い換えると収容品の下面に当接する周壁部４ｃ、即ち下の周壁部４ｃの下面には、収容箱の内底面に当接するように形成された第二の支持突起２２，２２が設けられる。
また、第一の支持突起の上方に延びる支持突起８ａ，１２ａ側の周壁部４ａ、言い換えると収容品の上面に当接する周壁部４ａ、即ち上の周壁部４ａの上面には、収容箱の内天井面に当接するように形成された第三の支持突起２０，２０が設けられる。
第二の支持突起２２，２２および第三の支持突起２０，２０は、第一の支持突起８ａ，８ｂ，１２ａ，１２ｂよりも小径かつ先細に形成される。また、第二の支持突起２２，２２および第三の支持突起２０，２０は、図２に示すように、側壁部２側の側面２０ａ，２０ａ，２２ａ，２２ａが、先端に向かうにしたがって、挿入部６の開口側の方向、言い換えると側壁部２から離間する方向に斜めに形成されている。
【００１８】
梱包用緩衝部材Ａにおいて、収容品が挿入部６に挿入されて収容箱に収容された状態で、収納品が収納箱に対して下方に移動する方向に衝撃が加えられて、第一の支持突起８ｂ，１２ｂおよび第二の支持突起２２，２２に収容品による荷重や衝撃が加わった際に、第二の支持突起２２，２２は、側面２２ａ，２２ａが斜めに形成されているために、挿入部６の開口側に若干逃げるように変形する（図２の第二の支持突起２２の破線参照）。また、第二の支持突起２２，２２は、第一の支持突起８ｂ，１２ｂよりも小径かつ先細に形成されているため、第一の支持突起８ｂ，１２ｂよりも柔軟に変形する。従って、第二の支持突起２２，２２は、第一の支持突起８ｂ，１２ｂによる緩衝動作に大きな影響を与えない。しかし、過大な衝撃力が加わった際には、第二の支持突起２２，２２が周壁部４ｃを支え、周壁部４ｃの破損を防ぐと共に、梱包用緩衝部材Ａが挿入部６の開口側に倒れて収容品が挿入部６から脱落することを防ぐ。
【００１９】
収納品が収納箱に対して上方に移動する方向に衝撃が加えられた場合には、第三の支持突起８ａ，１２ａの作用によって、周壁部４ａの破損を防ぐと共に、梱包用緩衝部材Ａが挿入部６の開口側に倒れて収容品が挿入部６から脱落することを防ぐ。
なお、第二の支持突起２２，２２および第三の支持突起２０，２０は、周壁部４ａ，４ｃの挿入部６の開口側の端部に配設されているため、梱包用緩衝部材Ａが、挿入部６の開口側に、より倒れにくくなっている。
【００２０】
なお、図１および図２の破線に示すように、第一の支持突起８ａ，８ｂ，１２ａ，１２ｂは、その挿入部６の開口側の側面８ｄ，８ｄ，１２ｄ，１２ｄを、先端に向かうに従って前記開口側から離間する方向に斜めに形成するとよい。こうすると、支持突起に荷重が加わった際に、第二の支持突起２２，２２および第三の支持突起２０，２０が挿入部６の開口側に逃げるよう変形することで梱包用緩衝部材Ａに働く挿入部６奥方向への応力を、第一の支持突起８ａ，８ｂ，１２ａ，１２ｂが第二の支持突起２２，２２および第三の支持突起２０，２０とは逆方向に逃げるように変形することで相殺し、梱包用緩衝部材Ａの位置がずれることなく荷重を吸収することができる。
【００２１】
なお、第二の支持突起２２，２２および第三の支持突起２０，２０は、あらかじめ収容箱の内天井面または内底面に当接するのではなく、近接するように形成し、第一の支持突起８ａ，８ｂ，１２ａ，１２ｂに荷重が掛かって第一の支持突起８ａ，８ｂ，１２ａ，１２ｂが縮んだ際に初めて内天井面または内底面に当接するように構成しても良い。
また、第二の支持突起２２，２２および第三の支持突起２０，２０は、必ずしも上下の周壁部４ａ，４ｃに二つずつ設ける必要はなく、上下の周壁部４ａ，４ｃに一つずつ設けても、三つ以上設けても良い。例えば、図３および図４に示す梱包用緩衝部材Ｂの様に、上下の周壁部４ａ，４ｃに、一つずつの横長の第二の支持突起２６および第三の支持突起２４を設けても良い。また、第一の支持突起は、図３および図４に示す様な形状としても良い。このように、第一および第二の支持突起は、任意の形状および個数に設けて良い。
また、図３および図４の梱包用緩衝部材Ｂの様に、第一の支持突起８ａ，８ｂ，１２ａ，１２ｂに連結し側壁部２の外壁に上下方向に延びる支持突起８ａ，１０ａ，１２ａ，１６ａ（図１および図２参照）は必ずしも設けなくともよい。
また、第二の支持突起２２，２２および第三の支持突起２０，２０の側面２０ａ，２０ａ，２２ａ，２２ａの反対側の側面も、先端に向かうにしたがって、側壁部２から離間する方向に斜めに形成してもよい。
【００２２】
また、本実施の形態においては、第一の支持突起８ａ，８ｂ，１２ａ，１２ｂは、側壁部２から上方および下方に突出して設けたが、図５に示すように、側壁部の鉛直部４ｂ，４ｄから上方および下方に突出して設けても良い。こうしても、第一の支持突起の上方に延びる支持突起と、側壁部の鉛直部４ｂ，４ｄと、第一の支持突起の下方に延びる支持突起とは、収容箱の内天井面および内底面をほぼ直線状に結んでに配置されることとなるため、梱包用緩衝部材の上下方向の緩衝距離を長くとることができる。
【００２３】
【発明の効果】
本発明に係る梱包用緩衝部材によれば、緩衝距離が長くとれると共に、破損や収容品の脱落が発生しにくいといった効果がある。
【図面の簡単な説明】
【図１】本発明に係る梱包用緩衝部材の斜視図である。
【図２】本発明に係る梱包用緩衝部材の側面図である。
【図３】本発明に係る梱包用緩衝部材の斜視図である。
【図４】本発明に係る梱包用緩衝部材の側面図である。
【図５】本発明に係る梱包用緩衝部材の斜視図である。
【図６】従来の梱包用緩衝部材の斜視図である。
【図７】従来の梱包用緩衝部材の側面図である。
【図８】従来の梱包用緩衝部材の斜視図である。
【図９】従来の梱包用緩衝部材の側面図である。
【符号の説明】
Ａ，Ｂ 梱包用緩衝部材
２ 側壁部
４ａ，４ｂ，４ｃ，４ｄ 周壁部
６ 挿入部
８ａ，８ｂ，１２ａ，１２ｂ 第一の支持突起
１８ 支持突起
２０ 第三の支持突起
２２ 第二の支持突起
２０ａ，２２ａ 側壁部側の側面
２４ 第三の支持突起
２６ 第二の支持突起[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention is directed to a packaging device that is arranged around a plurality of storage items and that can be stored in a storage box in a state in which the storage items are held by a plurality of buffer members by inserting side ends of the storage items into the insertion portions. The present invention relates to a cushioning member.
[0002]
[Prior art]
A conventional packing cushioning member that is arranged around a plurality of storage items and can be stored in a storage box in a state in which the storage items are held by the plurality of buffer members by inserting a side end of the storage item into the insertion portion. The shape shown in FIG. 6 is widely used. The cushioning member C for packing shown in FIG. 6 is formed of a material having a cushioning property such as expanded polystyrene or expanded polyolefin. The side end portion of the stored article is inserted into the packing cushioning member C by the side wall portion 50 and the peripheral wall portions 52a, 52b, 52c, and 52d which are vertically provided so as to surround the four sides from the side wall portion 50. An insertion portion 54 is formed. Two packing buffer members C are used for one storage item, the insertion portions 54 are opposed to each other, the side ends of the storage items are stored in the insertion portions 54, and the storage box is stored together with the storage items. It is housed in.
[0003]
Support projections are formed on the outer wall of the side wall portion 50 surrounding the insertion portion 54 and the outer walls of the peripheral wall portions 52a, 52b, 52c, 52d to absorb a shock or the like at the time of falling.
On the outer wall of the side wall portion 50, support protrusions 64, 64 protrude, and on the side peripheral wall portions 52b, 52d, support protrusions 66, 66 protrude. When the packing cushioning member C is stored in the storage box, the tips of the support protrusions 64, 64, 66, 66 abut against the inner surface of the storage box.
Support projections 56 and 60 extending upward are formed on the outer wall of the upper peripheral wall portion 52a that abuts on the upper surface of the storage item, and the lower wall of the lower peripheral wall portion 52c that abuts on the lower surface of the storage item has a support extending downward. Protrusions 58 and 62 are formed. The support protrusions 56 and 60 abut against the inner ceiling surface of the storage box, and the support protrusions 58 and 62 abut against the inner bottom surface of the storage box.
[0004]
As shown in FIG. 6 and FIG. 7 showing a side view of the cushioning member C for packing, the support protrusions 56, 58, 60, 62 projecting from the upper and lower peripheral wall portions 52a, 52c are inserted into the insertion portions of the peripheral wall portions 52a, 52c. From the end on the opening side of 54, it extends in the horizontal direction in the direction of the side wall portion 50, and is connected to support projections 56a, 58a, 60a (not shown), 62a (not shown) on the outer wall of the side wall portion 50, respectively. The support protrusions 56 a, 58 a, 60 a, and 62 a extend vertically and protrude from the outer wall of the side wall 50, and are connected to the support protrusion 64.
[0005]
As shown in FIG. 7, the cushioning member C for packing has a buffering distance (stroke) obtained in a state in which the article is inserted into the insertion portion 54. As shown in FIG. In the lower half, lc1 from the upper end of 60 to the upper surface of the insertion portion 54 is lc2 from the lower end of the support projections 58, 62 to the lower surface of the insertion portion 54.
[0006]
The vertical direction of the cushioning member C for packing is not increased without increasing the bulk of the cushioning member in the storage box for accommodating the articles, that is, without extending the support protrusions 56, 58, 60, 62 of the cushioning member C for packing up and down. FIGS. 8 and 9 show a conventional packing cushioning member D in which the cushioning distance is made longer to improve the cushioning performance. In the cushioning member D for packing, the support protrusions 56, 58, 60, and 62 are provided so as to protrude upward and downward from the upper side and the lower side of the side wall 50, and are not formed at a portion corresponding to the upper and lower projections of the insertion portion 54. That is, the support protrusions 56, 58, 60, 62 are formed so as to deviate from the upper and lower projections of the insertion portion 54. As a result, the cushioning operation of the cushioning member D for packing is performed at a distance from the upper support protrusions 56, 60 to the lower support protrusions 58, 62. That is, the buffer distances are ld1 and ld2 above and below, respectively.
By forming the upper and lower support projections 56, 58, 60, and 62 at positions deviated from the vertical projection of the insertion portion 54 in this manner, the volume in the storage box is smaller than that of the cushioning member C for packing. The buffer distance can be increased without increasing the distance.
[0007]
[Problems to be solved by the invention]
The conventional cushioning member for packing C shown in FIGS. 6 and 7 has a problem that the cushioning distance is short as described above.
On the other hand, in the conventional cushioning material D for packing shown in FIGS. 8 and 9, the cushioning distance can be longer than that of the cushioning member C for packing. However, when an impact in the vertical direction is applied, the impact is applied to the upper and lower peripheral walls 52a, 52c, thereby damaging the peripheral walls 52a, 52c, or the cushioning member D for packing is placed on the opening side of the insertion portion 54. There is a problem that the stored product may fall down and fall out of the insertion section 54 in some cases.
[0008]
SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a cushioning member for packing that can provide a long cushioning distance and is less likely to be damaged or fall off of a stored item.
[0009]
[Means for Solving the Problems]
The packing cushioning member according to the present invention has the following configuration in order to solve the above-mentioned problems. That is, a buffer member having an insertion portion surrounded by a side wall portion and a peripheral wall portion standing upright along the peripheral edge of the side wall portion and having a support protrusion formed on an outer wall. In the packing cushioning member capable of being accommodated in the accommodation box in a state in which the accommodation item is held by the plurality of cushioning members by inserting the side end portion of the accommodation item into the insertion portion, the support protrusion is provided in the insertion portion. A first support protrusion that is disposed at a position deviated from the vertical projection and protrudes upward and downward from the side wall portion and abuts an inner ceiling surface and an inner bottom surface of the storage box; And a second support protrusion formed on the lower surface of the peripheral wall on the side of the support protrusion extending downward from the inner surface of the housing box.
According to this, the first support protrusion protruding upward and downward from the vertical portion of the peripheral wall portion or the side wall portion provides a long buffering distance, and the second support protrusion absorbs an impact applied to the peripheral wall portion, Prevents the packing cushioning member from falling down.
[0010]
Further, the second support projection is formed to have a smaller diameter than the first support projection.
Further, the second support projection is tapered.
According to this, since the second support projection is formed to have a smaller diameter or a taper than the first support projection, the second support projection is easily contracted, and does not hinder the buffer operation of the first support projection.
[0011]
Further, the second support projection is formed such that the side surface on the side of the side wall portion is formed obliquely in the direction of the opening side of the insertion portion toward the tip, so that when a load is applied, the insertion portion has It is configured to be deformed to the opening side.
According to this, the second support protrusion is deformed to the opening side of the insertion portion when an impact is applied to the storage item, so that the cushioning member for packing is less likely to fall to the opening side of the insertion portion, and the storage item is reduced. It can be prevented from falling off from the insertion portion.
[0012]
Further, the second support projection is provided at an end of the lower surface of the peripheral wall portion on the opening side of the insertion portion.
According to this, since the second support projection supports the opening-side end of the peripheral wall, the cushioning member for packing is less likely to fall toward the opening of the insertion portion.
[0013]
Further, a third support protrusion formed on the upper surface of the peripheral wall portion on the side of the support protrusion extending above the first support protrusion is formed so as to abut or approach the inner ceiling surface of the storage box. Features.
According to this, even in the event of an upward impact of the stored product, it is possible to prevent the upper peripheral wall from being damaged and the stored product from dropping out of the insertion portion due to the upward rotation of the cushioning member for packing.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of a cushioning member for packing according to the present invention will be described with reference to the drawings.
FIG. 1 shows a book which is arranged around a plurality of stored items, and which can be stored in a storage box in a state in which the stored items are held by a plurality of buffer members by inserting side ends of the stored items into an insertion portion. It is a perspective view of buffer member A for packing concerning the present invention. FIG. 2 is a side view thereof. The packing buffer member A is formed of a material having a buffering property such as expanded polystyrene or expanded polyolefin. The cushioning member A for packing includes a side wall portion 2 and peripheral wall portions 4a, 4b, 4c, and 4d standing along the periphery of the side wall portion 2 so as to surround the four sides perpendicular to the side wall portion 2. An insertion portion 6 is formed for inserting a rectangular side end of the stored article.
Two packing buffer members A are used for one storage item, the insertion portions 6 are opposed to each other, the side ends of the storage items are stored in the insertion portions 6, respectively, and the storage box is stored together with the storage items. It is housed in.
[0015]
On the outer wall of the side wall portion 2 surrounding the insertion portion 6 and the outer walls of the peripheral wall portions 4a, 4b, 4c, 4d, support projections for absorbing a shock or the like at the time of dropping with the storage box are formed. Support projections 16 are provided on the outer wall of the side wall 2, and support projections 18 are provided on the side peripheral walls 4 b and 4 d. When the packing cushioning member A is stored in the storage box, the tips of the support protrusions 16, 16, 18, and 18 abut against the inner surface of the storage box.
The side wall portion 2 is formed with first support protrusions 8a, 8b, 12a, 12b projecting upward and downward from the upper side and the lower side, respectively. As shown in FIG. 2, the first support protrusions 8 a, 8 b, 12 a, 12 b are provided so as to deviate from the upper and lower projections of the insertion section 6. The first support projections 8a, 8b, 12a, and 12b are connected to the support projections 8c and 12c (not shown), which are vertically protruded from the outer wall of the side wall portion 2 and are connected to the support projections 16. .
[0016]
The first support projections 8a, 8b, 12a, and 12b are provided so as to protrude upward and downward from the side wall portion 2 and abut against the inner ceiling surface and the inner bottom surface of the storage box. , 12a, the side wall 2 and the lower first support projections 8b, 12b are arranged so as to connect the inner ceiling surface and the inner bottom surface of the storage box in a substantially straight line. Therefore, the buffering distance in the vertical direction of the packing buffering member A is la1 upward and la2 downward.
[0017]
The peripheral wall 4c on the side of the support projections 8b and 12b extending below the first support projection, in other words, the peripheral wall 4c abutting on the lower surface of the stored article, that is, the lower surface of the lower peripheral wall 4c, is provided on the inner bottom surface of the storage box. Second support protrusions 22 are formed so as to be in contact with each other.
In addition, the peripheral wall 4a on the side of the support projections 8a and 12a extending above the first support projection, in other words, the peripheral wall 4a that comes into contact with the upper surface of the storage article, that is, the upper surface of the upper peripheral wall 4a, Third support projections 20, 20 are provided so as to be in contact with the ceiling surface.
The second support projections 22, 22 and the third support projections 20, 20 are formed to have a smaller diameter and a taper than the first support projections 8a, 8b, 12a, 12b. As shown in FIG. 2, the second support protrusions 22, 22 and the third support protrusions 20, 20 are inserted as the side surfaces 20 a, 20 a, 22 a, 22 a on the side wall 2 side move toward the front end. It is formed obliquely in the direction of the opening side of the portion 6, in other words, in the direction away from the side wall portion 2.
[0018]
In the packing cushioning member A, in a state in which the stored article is inserted into the insertion portion 6 and stored in the storage box, an impact is applied in a direction in which the stored article moves downward with respect to the storage box, and the first support When a load or an impact is applied to the projections 8b, 12b and the second support projections 22, 22 by the accommodated articles, the second support projections 22, 22 have side surfaces 22a, 22a formed obliquely. It deforms so as to slightly escape to the opening side of the insertion portion 6 (see the broken line of the second support protrusion 22 in FIG. 2). Further, since the second support protrusions 22 are formed to have a smaller diameter and a taper than the first support protrusions 8b, 12b, they deform more flexibly than the first support protrusions 8b, 12b. Therefore, the second support projections 22, 22 do not significantly affect the buffering operation of the first support projections 8b, 12b. However, when an excessive impact force is applied, the second support projections 22 support the peripheral wall portion 4c to prevent damage to the peripheral wall portion 4c, and the cushioning member A for packing is placed on the opening side of the insertion portion 6. This prevents the stored articles from falling down from the insertion section 6.
[0019]
When an impact is applied in the direction in which the stored articles move upward with respect to the storage box, the action of the third support projections 8a and 12a prevents the peripheral wall portion 4a from being damaged, and the packing cushioning member A is used. The stored articles are prevented from falling down from the insertion section 6 by falling down to the opening side of the insertion section 6.
Since the second support projections 22 and 22 and the third support projections 20 and 20 are disposed at the ends of the peripheral walls 4a and 4c on the opening side of the insertion portion 6, the cushioning member A for packing is used. , It is harder to fall down on the opening side of the insertion portion 6.
[0020]
1 and 2, the first support protrusions 8a, 8b, 12a, and 12b move along the side surfaces 8d, 8d, 12d, and 12d on the opening side of the insertion portion 6 toward the front end. It may be formed obliquely in a direction away from the opening side. In this case, when a load is applied to the support protrusions, the second support protrusions 22 and 22 and the third support protrusions 20 and 20 are deformed so as to escape to the opening side of the insertion portion 6, so that the packing cushioning member A The first support protrusions 8a, 8b, 12a, 12b deform the stress in the depth direction of the insertion portion 6 so that the first support protrusions 8a, 8b, 12a, 12b escape in a direction opposite to the second support protrusions 22, 22 and the third support protrusions 20, 20. By doing so, the load can be absorbed without shifting the position of the cushioning member A for packing.
[0021]
The second support projections 22 and 22 and the third support projections 20 and 20 are formed in advance so as not to abut against the inner ceiling surface or the inner bottom surface of the storage box but to be close to each other. The first support projections 8a, 8b, 12a, 12b may be configured to be brought into contact with the inner ceiling surface or the inner bottom surface only when a load is applied to the first support protrusions 8a, 8b, 12a, 12b.
Also, the second support projections 22, 22 and the third support projections 20, 20 need not necessarily be provided two by two on the upper and lower peripheral wall parts 4a, 4c, but provided one by one on the upper and lower peripheral wall parts 4a, 4c. Alternatively, three or more may be provided. For example, like the cushioning member B for packing shown in FIGS. 3 and 4, each of the upper and lower peripheral walls 4 a and 4 c may be provided with one horizontally long second support protrusion 26 and one third support protrusion 24. good. Further, the first support protrusion may be shaped as shown in FIG. 3 and FIG. Thus, the first and second support protrusions may be provided in any shape and number.
3 and 4, the support protrusions 8a, 10a, 12a, which are connected to the first support protrusions 8a, 8b, 12a, 12b and extend vertically on the outer wall of the side wall portion 2. 16a (see FIGS. 1 and 2) may not be necessarily provided.
Also, the side surfaces of the second support protrusions 22, 22 and the third support protrusions 20, 20 opposite to the side surfaces 20a, 20a, 22a, 22a are inclined in a direction away from the side wall portion 2 toward the front end. May be formed.
[0022]
Further, in the present embodiment, the first support projections 8a, 8b, 12a, 12b are provided so as to protrude upward and downward from the side wall part 2, but as shown in FIG. , 4d projecting upward and downward. Even in this case, the support protrusions extending above the first support protrusions, the vertical portions 4b and 4d of the side wall portions, and the support protrusions extending below the first support protrusions form the inner ceiling surface and the inner bottom surface of the storage box. Since they are arranged so as to be connected in a substantially straight line, the vertical cushioning distance of the cushioning member for packing can be increased.
[0023]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to the cushioning member for packing which concerns on this invention, while having a long buffering distance, there exists an effect that it is hard to generate damage or a fall of an accommodation item.
[Brief description of the drawings]
FIG. 1 is a perspective view of a cushioning member for packing according to the present invention.
FIG. 2 is a side view of the cushioning member for packing according to the present invention.
FIG. 3 is a perspective view of a cushioning member for packing according to the present invention.
FIG. 4 is a side view of the cushioning member for packing according to the present invention.
FIG. 5 is a perspective view of a cushioning member for packing according to the present invention.
FIG. 6 is a perspective view of a conventional cushioning member for packing.
FIG. 7 is a side view of a conventional cushioning member for packing.
FIG. 8 is a perspective view of a conventional cushioning member for packing.
FIG. 9 is a side view of a conventional cushioning member for packing.
[Explanation of symbols]
A, B Packing buffer member 2 Side wall portions 4a, 4b, 4c, 4d Peripheral wall portion 6 Insertion portions 8a, 8b, 12a, 12b First support protrusion 18 Support protrusion 20 Third support protrusion 22 Second support protrusion 20a , 22a Side wall 24 on side wall portion Third support protrusion 26 Second support protrusion
