JPS5840018Y2 - food packaging tray - Google Patents
food packaging trayInfo
- Publication number
- JPS5840018Y2 JPS5840018Y2 JP1980051486U JP5148680U JPS5840018Y2 JP S5840018 Y2 JPS5840018 Y2 JP S5840018Y2 JP 1980051486 U JP1980051486 U JP 1980051486U JP 5148680 U JP5148680 U JP 5148680U JP S5840018 Y2 JPS5840018 Y2 JP S5840018Y2
- Authority
- JP
- Japan
- Prior art keywords
- tray
- radius
- food packaging
- bottom plate
- side walls
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Containers Having Bodies Formed In One Piece (AREA)
Description
【考案の詳細な説明】
本考案は、熱可塑性樹脂製、発泡樹脂又は熱可塑性発泡
樹脂に非発泡熱可塑性樹脂層を積層した複合発泡樹脂製
、とりわけ発泡ポリスチレン板(通常ポリスチレンペー
パー(psp)と称する)からなる食品包装用トレイの
各連接角部を強化することによってトレイ側壁外方向並
びに短辺又は長辺幅方向等に対する強度を高めた食品包
装用トレイに関する。[Detailed description of the invention] The present invention is made of thermoplastic resin, foamed resin, or composite foamed resin made of thermoplastic foamed resin laminated with a non-foamed thermoplastic resin layer. This invention relates to a food packaging tray that has increased strength in the outside direction of the side wall of the tray and in the short side or long side width direction by reinforcing each connecting corner of the food packaging tray.
従来、食品包装用トレイにおいては、その強度を高める
ために基壁の厚肉化を計ったり、長、短側壁、底板に連
続する補強リブを形成し若しくは底板と側壁の連接角部
内側に補強リブを設けるものであったが単なる厚肉化だ
けでは原材料(原反)の使用量大となってコスト高とな
る割には強度アップ効果がなく、又補強リブを底板から
側壁に連続形成した場合には空容器を多数積重ねて移送
する際にその積重ね高さが高くなって移送コスト高とな
る欠点が残されており、又底板と側壁の連接角部に補強
リブを形成した場合も側壁にかかる内、外方向への負荷
が当該補強リブと側壁の連接部に集中することから亀裂
、破壊の原因となる問題が残されていた。Conventionally, food packaging trays have had thicker base walls to increase their strength, continuous reinforcing ribs have been formed on the long and short side walls, and the bottom plate, or reinforcement has been added to the inside of the connecting corners between the bottom plate and the side walls. Ribs were to be provided, but simply increasing the thickness would require a large amount of raw material (original fabric), which would increase costs and would not have the effect of increasing strength, and reinforcing ribs were continuously formed from the bottom plate to the side walls. In some cases, when a large number of empty containers are stacked and transported, the stacking height becomes high, resulting in high transport costs.Also, when reinforcing ribs are formed at the connecting corners of the bottom plate and the side walls, the side walls The problem remains that the internal and external loads applied to the reinforcing ribs are concentrated at the joints between the reinforcing ribs and the side walls, causing cracks and destruction.
本考案者らは従来のこれら問題点に鑑みこれを解決せん
として本考案を完成したものであり、その要旨とすると
ころは、トレイ各構成部の連接角部を内、外面とともに
アール面となしかつ外面のアールよりも内側のアールを
大となした点にある。The inventors of the present invention completed the present invention in an attempt to solve these conventional problems.The gist of the invention is that the connecting corners of each component of the tray are rounded along with the inner and outer surfaces. Moreover, the radius on the inside is larger than the radius on the outside.
即ち、本考案は、第1図、第2図に示した如くスチレン
系発泡樹脂等で作成した食品包装用トレイTの底板部1
、側壁2,3からなる各構成部の連接角部4,5におい
て外面のアール6よりも内面のアール7を大になるよう
成形し、連接角部4,5における強度を向上せしめたも
のである。That is, the present invention provides a bottom plate portion 1 of a food packaging tray T made of styrene foam resin or the like as shown in FIGS. 1 and 2.
, the connecting corner portions 4 and 5 of each component consisting of the side walls 2 and 3 are formed so that the radius 7 on the inner surface is larger than the radius 6 on the outer surface, thereby improving the strength at the connecting corner portions 4 and 5. be.
第2図の部分拡大断面図は発泡ポリスチレン板を真空成
形して作成したものの連接角部4を示すが外面のアール
6よりも内面のアール7を大とすることによって、該連
接角部4,5の肉厚を大きくすることができ側壁2,3
に対して幅方向及び/又は側壁外方向の力F1.F2が
出力としてかけられてもこれら作用に抵抗する力として
内面側厚肉部分が作用するものである。The partially enlarged sectional view of FIG. 2 shows the connecting corner 4 of a foamed polystyrene plate made by vacuum forming.By making the inner radius 7 larger than the outer radius 6, the connecting corner 4, The wall thickness of the side walls 2 and 3 can be increased.
Force F1. Even when F2 is applied as an output, the inner thick portion acts as a force to resist these effects.
ここに内外面のアール6.7を前記の如く設定する個所
としては、底板部1周囲の連接こ部4ばかりでなく側壁
2,3四隅の連接角部5(第2図相当の連接角部5断面
図は省略する)や底板部周囲の連接角部における側壁四
隅の連接角部と交叉する連接角部についても適用可能で
あり、その設定幅は連接角部4ではトレイT内に積み重
ねた上段トレイTaの底板部1下面と下段トレイTの底
板部1上面との間に形成される空間8の幅を上限とすれ
ば積み重ねたときの高さを従来のものより高くならない
ようにできるが、高くなることを許容すれば適宜な幅で
内面アール7の大きさを決定しても本考案の一実施例と
して採用可能である。Here, the locations where the radius 6.7 of the inner and outer surfaces are set as described above include not only the connecting corners 4 around the bottom plate part 1, but also the connecting corners 5 at the four corners of the side walls 2 and 3 (connecting corners corresponding to Fig. 2). 5 sectional view is omitted) and the connecting corners around the bottom plate that intersect with the connecting corners of the four corners of the side wall, and the set width is the same as that of the connecting corners 4, which are stacked in the tray T. If the width of the space 8 formed between the lower surface of the bottom plate part 1 of the upper tray Ta and the upper surface of the bottom plate part 1 of the lower tray T is set as the upper limit, the height when stacked can be prevented from becoming higher than that of the conventional one. As long as the height of the inner surface radius 7 is allowed, it is possible to determine the size of the inner surface radius 7 with an appropriate width and use it as an embodiment of the present invention.
次に、連接角部5にあっては、ここに本考案を適用する
ことによって積み重ね高さをやや犠牲にしなければなら
ないが補強目的からすると十分なる効果が期待できるも
のであり、その設定幅は第1図想像線5aの如くアール
7を比較的小さくしたり、5bの如く幅広にとったりす
ることができるうえに、第3図5Cの如く、連接角部5
の上部幅方向に設定することができ、それぞれこのよう
なトレイTにおいて損傷率の高い連接角部5を補強しう
るちのである。Next, regarding the connecting corner portion 5, by applying the present invention, the stacking height must be sacrificed a little, but from the purpose of reinforcement, a sufficient effect can be expected, and the setting width is The radius 7 can be made relatively small as shown in the imaginary line 5a in FIG. 1, or wide as shown in FIG.
This can be set in the upper width direction of the tray T, respectively, to reinforce the connecting corner portion 5, which has a high damage rate in such a tray T.
又、これら補強されたトレイTの構造としては前記内外
面アール6.7の関係を本出願人が先に出願した食品包
装用トレイ(実願昭53−141258号)即ちトレイ
底部の周辺立上り部分及び口部周辺部分の肉厚がトレイ
側壁部の肉厚よりも大きい形状を有するようにしたトレ
イの連接角部に適用することはトレイの使用便宜上並び
に補強目的からすると好ましいことといえる。Furthermore, regarding the structure of these reinforced trays T, the relationship between the above-mentioned inner and outer surface radiuses 6.7 is similar to that of the tray for food packaging (Utility Application No. 141258/1983) previously filed by the present applicant, that is, the peripheral rising portion of the bottom of the tray. It can be said that it is preferable to apply it to the connecting corner of a tray in which the wall thickness around the mouth portion is larger than the wall thickness of the side wall portion of the tray, from the viewpoint of convenient use of the tray and the purpose of reinforcement.
なお、これらトレイの成形は、本出願人が先に出願して
いる両面真空成形法(特開昭54−148863号)を
適用し、例えば第2図の想像線9,10のように金型に
おける吸引孔先端をアール6.7面に位置させ連接角部
4,5内外から吸引したから真空成形することによって
本考案の工業的実施が容易となる。These trays are formed by applying the double-sided vacuum forming method (Japanese Unexamined Patent Publication No. 148863/1983) previously filed by the present applicant, and for example, molds are formed as shown in imaginary lines 9 and 10 in Fig. 2. The industrial implementation of the present invention is facilitated by positioning the tip of the suction hole in the radius 6.7 plane, sucking from inside and outside of the connecting corners 4 and 5, and then performing vacuum forming.
なお又、側壁2,3間の連接角部5の強度を向上せしめ
るに本考案の内外アール関係を採用するとともに又は採
用せずに連接角部5の上端外縁に突延部11を設けるこ
とにより、積み重ね時の高さを高くせずに底板部1周囲
の連接角部4と側壁2,3間の連接角部5を補強できる
。Furthermore, the strength of the connecting corner 5 between the side walls 2 and 3 can be improved by providing an extension 11 on the outer edge of the upper end of the connecting corner 5, with or without adopting the inside-outside radius relationship of the present invention. The connecting corner 4 around the bottom plate part 1 and the connecting corner 5 between the side walls 2 and 3 can be reinforced without increasing the stacking height.
以上のように本考案の食品包装用トレイTにおいては、
連接角部4,5の内、外面を曲面即ちアールとなすとと
もに外面のアール6よりも内面のアール7を大となして
厚肉化したものであることから当該連接角部内側に断面
三角形等の補強リブを形成した場合のように側壁にかか
る内、外方向への負荷が補強リブと側壁の連接部に集中
して作用し亀裂、破損の原因となり易いのに比して本案
の場合板に側壁に内、外方向への負荷がかかつてもこの
負荷は内、外アール面7,6全体に分散して作用するこ
とから弾力性に富む高い抗負荷力を呈し破損の防止効果
が極めて高いのである。As mentioned above, in the food packaging tray T of the present invention,
The inner and outer surfaces of the connecting corners 4 and 5 are curved, that is, rounded, and the inner radius 7 is made larger than the outer radius 6 to make the wall thicker. In contrast to the case where reinforcing ribs are formed, the internal and external loads applied to the side walls are concentrated on the joints between the reinforcing ribs and the side walls, which tends to cause cracks and damage. Even if a load is applied to the side wall in the inner and outer directions, this load is distributed and acts on the entire inner and outer rounded surfaces 7 and 6, so it exhibits a high anti-load force with high elasticity and is extremely effective in preventing damage. It's expensive.
又この内、外アール7.6のアールを白太、外事となす
構成条件の設定個所を例えば連接角部4に本考案のアー
ル条件を附与することにより積み重ね高さを高くせずに
補強可能であるうえに、外力附加時における損傷率の高
い連接角部5のみの補強も可能となる。In addition, by adding the radius condition of the present invention to the connecting corner 4, for example, by setting the configuration condition where the radius of the outer radius 7.6 is thick and external, it can be reinforced without increasing the stacking height. Not only is this possible, but it also becomes possible to reinforce only the connecting corner portion 5, which has a high damage rate when an external force is applied.
加えて、底板部1周囲の連接角部4における外面のアー
ル6よりも内面のアール7を大にするとともに側壁2,
3間の連接角部5の上端外縁又はトレイ口部外縁全体に
突延部11を設けているときには、トレイ全体の補強程
度は極めて高いものとなるうえにトレイ四隅の損傷率も
極めて低いものとできる。In addition, the inner surface radius 7 of the connecting corner portion 4 around the bottom plate portion 1 is made larger than the outer surface radius 6, and the side walls 2,
When the extension part 11 is provided on the entire upper edge of the connecting corner 5 between the trays 3 or the entire outer edge of the tray opening, the degree of reinforcement of the entire tray is extremely high, and the damage rate at the four corners of the tray is also extremely low. can.
第1図は本考案トレイの斜視図、第2図は部分拡大断面
図、第3図は部分拡大平面図、第4図は他の実施例部分
斜視図である。
1・・・・・・底板部、2・・・・・・側壁、3・・・
・・・側壁、4・・・・・・連接角部、5・・・・・・
連接角部、6・・・・・・外面アール、7・・・・・・
内面アール、8・・・・・・空間、9・・・・・・吸引
孔、10・・・・・・吸引孔、11・・・突延部。FIG. 1 is a perspective view of the tray of the present invention, FIG. 2 is a partially enlarged sectional view, FIG. 3 is a partially enlarged plan view, and FIG. 4 is a partially perspective view of another embodiment. 1...Bottom plate part, 2...Side wall, 3...
...Side wall, 4...Connection corner, 5...
Connecting corner, 6... External radius, 7...
Inner surface radius, 8...Space, 9...Suction hole, 10...Suction hole, 11...Protrusion portion.
Claims (1)
して得られた積み重ね可能な食品包装用トレイにおいて
、トレイ底板部周囲の連接角部内、外面を曲面となすと
ともに外面のアールよりも内面のアールを大にしてなる
食品包装用トレイ。In stackable food packaging trays obtained by molding foamed polystyrene plates made of styrene-based foamed resin, the inner and outer surfaces of the connecting corners around the bottom plate of the tray are curved, and the radius of the inner surface is larger than that of the outer surface. A tray for food packaging.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1980051486U JPS5840018Y2 (en) | 1980-04-14 | 1980-04-14 | food packaging tray |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1980051486U JPS5840018Y2 (en) | 1980-04-14 | 1980-04-14 | food packaging tray |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56153412U JPS56153412U (en) | 1981-11-17 |
JPS5840018Y2 true JPS5840018Y2 (en) | 1983-09-08 |
Family
ID=29646397
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1980051486U Expired JPS5840018Y2 (en) | 1980-04-14 | 1980-04-14 | food packaging tray |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5840018Y2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6962699B2 (en) * | 2016-03-30 | 2021-11-05 | 中央化学株式会社 | Packaging container |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS505443U (en) * | 1973-05-10 | 1975-01-21 |
-
1980
- 1980-04-14 JP JP1980051486U patent/JPS5840018Y2/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS505443U (en) * | 1973-05-10 | 1975-01-21 |
Also Published As
Publication number | Publication date |
---|---|
JPS56153412U (en) | 1981-11-17 |
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