JPH0518287Y2 - - Google Patents
Info
- Publication number
- JPH0518287Y2 JPH0518287Y2 JP1987057964U JP5796487U JPH0518287Y2 JP H0518287 Y2 JPH0518287 Y2 JP H0518287Y2 JP 1987057964 U JP1987057964 U JP 1987057964U JP 5796487 U JP5796487 U JP 5796487U JP H0518287 Y2 JPH0518287 Y2 JP H0518287Y2
- Authority
- JP
- Japan
- Prior art keywords
- recess
- receiving surface
- cushioning material
- pressure
- side wall
- 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 - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 31
- 238000004806 packaging method and process Methods 0.000 claims description 25
- 229920003002 synthetic resin Polymers 0.000 claims description 13
- 239000000057 synthetic resin Substances 0.000 claims description 13
- 238000009423 ventilation Methods 0.000 claims description 13
- 230000004308 accommodation Effects 0.000 claims description 2
- 239000011324 bead Substances 0.000 description 9
- 238000000465 moulding Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229920006248 expandable polystyrene Polymers 0.000 description 3
- 229920000098 polyolefin Polymers 0.000 description 3
- 238000005187 foaming Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Landscapes
- Buffer Packaging (AREA)
- Vibration Dampers (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、例えば発泡性ポリスチレンビーズ、
発泡性ポリオレフインビーズ等の発泡材料を用い
て型内ビーズ成形法により成形された包装用緩衝
材において、それの受圧面側に設けた肉抜き用凹
部の内圧が衝撃力が負荷されたときに内部の空気
が圧縮されて理論上より高くなつて、結果として
被包装物に理論値より高い衝撃力となつて負荷さ
れたり、又は肉抜き用凹部周囲の側壁が破損する
こと等の問題を回避できる発泡合成樹脂製包装用
緩衝材に関する。[Detailed description of the invention] [Industrial application field] The present invention can be applied to, for example, expandable polystyrene beads,
In a packaging cushioning material molded by the in-mold bead molding method using a foaming material such as foamable polyolefin beads, the internal pressure of the hollowing recess provided on the pressure-receiving surface of the material may cause internal pressure to increase when an impact force is applied. It is possible to avoid problems such as the air being compressed and becoming higher than theoretically, resulting in an impact force higher than the theoretical value being applied to the packaged item, or damage to the side wall around the recess for thinning. This invention relates to a cushioning material for packaging made of foamed synthetic resin.
従来、発泡合成樹脂製包装用緩衝材は、例えば
発泡性ポリスチレンビーズ、発泡性ポリオレフイ
ンビーズ等の発泡材料を用いて型内ビーズ成形法
等で成形されている。そして、この包装用緩衝材
には、成形サイクルの短縮化、目付量の軽減化、
又受圧面積の調整等を目的として受圧面側等に第
4図に示すような肉抜き用凹部が形成されてい
る。即ち、図中aが緩衝材、bが肉抜き用凹部、
cがその側壁、dが被包装物である。また、eは
包装用緩衝材aで被包装物dを包装した後、これ
らを収納するダンボール箱である。
BACKGROUND ART Conventionally, foamed synthetic resin packaging cushioning materials have been molded using, for example, an in-mold bead molding method using foamed materials such as foamed polystyrene beads and foamed polyolefin beads. In addition, this packaging cushioning material shortens the molding cycle, reduces the basis weight,
Further, for the purpose of adjusting the pressure receiving area, etc., a hollow recess as shown in FIG. 4 is formed on the pressure receiving surface side. That is, in the figure, a is the cushioning material, b is the recess for lightening,
c is its side wall, and d is the object to be packaged. Moreover, e is a cardboard box in which the packaged items d are packaged with the packaging cushioning material a and then stored therein.
ところが、このような包装用緩衝材を用いて、
被包装物を包装し、ダンボール箱等に収納して輸
送する途上等に、被包装物を収納したダンボール
箱を落下等させたときには、その衝撃力が包装用
緩衝材に負荷される。即ち、第4図に示す状態で
上方から落下させた場合には、包装用緩衝材下面
が受圧面となつてダンボール箱を介して被包装物
に衝撃力が負荷される。そして、この衝撃力が負
荷されたときには、肉抜き用凹部の内圧がダンボ
ール箱内面との間に空気が密閉されて圧縮される
ことで上昇する。このため、その圧縮応力によつ
て、包装用緩衝材が本来持つべき衝撃値より高い
衝撃値を保有することになり、結果として被包装
物に理論値より高い衝撃力が負荷されたり、又は
肉抜き用凹部周囲の側壁を破損させたりする問題
がある。
However, using this kind of packaging cushioning material,
When the cardboard box containing the packaged item is dropped while the packaged item is being packaged, stored in a cardboard box, etc., and transported, the impact force is applied to the packaging cushioning material. That is, when dropped from above in the state shown in FIG. 4, the lower surface of the packaging cushioning material acts as a pressure receiving surface and an impact force is applied to the packaged item through the cardboard box. When this impact force is applied, the internal pressure of the hollowing recess increases as air is sealed and compressed between it and the inner surface of the cardboard box. Therefore, due to the compressive stress, the packaging cushioning material has a higher impact value than it should have, and as a result, the packaged item is subjected to an impact force higher than the theoretical value, or There is a problem that the side wall around the punching recess may be damaged.
このような従来の問題点に鑑みて考案されたの
が本考案に係る発泡合成樹脂製包装用緩衝材で、
緩衝機能が理論値通りのもので、しかもその肉抜
き用凹部周囲の側壁に衝撃力が負荷されたときの
圧縮応力によつて破損が及ばないことを目的とす
る。 In view of these conventional problems, the foamed synthetic resin packaging cushioning material of the present invention was devised.
The purpose is to have a buffering function that is in accordance with the theoretical value, and to avoid damage due to compressive stress when an impact force is applied to the side wall around the hollowing recess.
こうした目的を達成するため、本考案では、受
圧面と反対側に被包装物の収容用凹部を被包装物
の外面外側に対応する部分に壁体を残して凹設す
るとともに、受圧面側に肉抜き用凹部を壁体で周
囲並びに天井部分を囲んで凹設し、更には肉抜き
用凹部周囲の側壁にこの肉抜き用凹部と外部を連
通させる通気部を開設した発泡合成樹脂製包装用
緩衝材を構成した。
In order to achieve this purpose, in the present invention, a recess for storing the packaged object is provided on the side opposite to the pressure-receiving surface, leaving a wall on the outside of the packaged object, and a recess is formed on the side opposite to the pressure-receiving surface. For packaging made of foamed synthetic resin, in which a recess for hollowing out is formed by surrounding the surrounding area and the ceiling with walls, and a ventilation section is provided on the side wall around the recess for hollowing out, which communicates this recess for hollowing out with the outside. It constituted a buffer material.
而して、このような発泡合成樹脂製包装用緩衝
材では、その受圧面側に設けた肉抜き用凹部周囲
の側壁にこの肉抜き用凹部内と外部を連通させる
通気部を開設したから、衝撃力が負荷されたとき
に発生する圧縮空気は、その通気部を通じて逃が
され、包装用緩衝材としての理論上の衝撃値を保
有し、しかもその肉抜き用凹部周囲の側壁が破損
する問題も回避できる。
In such a foamed synthetic resin packaging cushioning material, since a ventilation section is provided on the side wall around the hollowing recess provided on the pressure receiving surface side to communicate the inside of the hollowing out recess and the outside. The compressed air generated when an impact force is applied escapes through the ventilation section, which has a theoretical impact value as a cushioning material for packaging, and the problem is that the side wall around the recess for lightening is damaged. can also be avoided.
本考案に係る発泡合成樹脂製包装用緩衝材の詳
細を更に添付の図面に基づき説明する。この包装
用緩衝材1は、通常、例えば発泡性ポリスチレン
ビーズ、発泡性ポリオレフインビーズ等の発泡材
料を用いて型内ビーズ成形法又は発泡性ポリウレ
タン等を用いて型内成形法で成形された成形品が
利用される。そして、この包装用緩衝材1の受圧
面2と反対側には、被包装物3の収容用凹部4を
被包装物3の外面外側に対応する部分に壁体を残
して凹設している。また、これの受圧面2側に
は、これを成形するときの成形サイクルの短縮
化、目付量の軽減化、又受圧面積の調整を目的と
して壁体で周囲並びに天井部分を囲んだ肉抜き用
凹部5を凹設している。ところが、図中5として
示すこのような肉抜き用凹部を単に設けた場合に
は、第4図に示すような従来技術の問題点を保有
する。このため、この肉抜き用凹部5から外部に
衝撃力が負荷されたときに発生する圧縮空気を逃
がす通気部6を開設することで、衝撃力が負荷さ
れたときの肉抜き用凹部5の内圧の上昇を防止す
るものである。そして、第1図、第2図には、通
気部6を肉抜き用凹部5周囲の側壁7の受圧面2
側に横断的に開口幅を有する凹溝8を形成して設
けた実施例を示している。この凹溝8は、一つの
肉抜き用凹部5に対して複数個設けることも適宜
考慮される。更に、このような包装用緩衝材1を
用いて、被包装物3を包装し、ダンボール箱9に
収納した場合、第3図に示すように包装用緩衝材
1表面がダンボール箱9内面と密着して通気困難
となるおそれがある部分には、通気部6をこの凹
溝8の肉抜き用凹部5と反対側端部から収容用凹
部4側位の側壁10の受圧面2と反対側に開放し
た同じく開口幅を有する延長凹溝11を更に形成
して設ける。そして、通気部6は開口幅を有する
凹溝8、延長凹溝11を形成することで設ける
他、貫通孔を形成して設けることもできる。
The details of the foamed synthetic resin packaging cushioning material according to the present invention will be further explained based on the attached drawings. This packaging cushioning material 1 is usually a molded product formed by an in-mold bead molding method using a foaming material such as expandable polystyrene beads or expandable polyolefin beads, or an in-mold molding method using an expandable polyurethane. is used. On the side opposite to the pressure-receiving surface 2 of the packaging cushioning material 1, a recess 4 for accommodating the packaged object 3 is formed with a wall remaining at a portion corresponding to the outside of the packaged object 3. . In addition, on the pressure receiving surface 2 side of this, there is a wall to surround the surrounding area and the ceiling part for the purpose of shortening the molding cycle when molding, reducing the area weight, and adjusting the pressure receiving area. A recessed portion 5 is provided. However, if such a recess for lightening shown as 5 in the figure is simply provided, there are problems with the prior art as shown in FIG. 4. For this reason, by providing a vent 6 to release the compressed air generated when an impact force is applied to the outside from this recess 5, the internal pressure of the recess 5 when an impact force is applied is reduced. This prevents the rise of 1 and 2, the ventilation portion 6 is connected to the pressure-receiving surface 2 of the side wall 7 around the recess 5 for lightening.
An embodiment is shown in which a groove 8 having an opening width is formed transversely on the side. Providing a plurality of grooves 8 for one lightening recess 5 may be considered as appropriate. Furthermore, when the packaged item 3 is packaged using such a packaging cushioning material 1 and stored in a cardboard box 9, the surface of the packaging cushioning material 1 is in close contact with the inside of the cardboard box 9, as shown in FIG. In areas where there is a risk of difficulty in ventilation, install a ventilation section 6 from the end of the groove 8 opposite to the hollowing recess 5 to the side opposite to the pressure receiving surface 2 of the side wall 10 on the side of the housing recess 4. An open extension groove 11 having the same opening width is further formed and provided. The ventilation portion 6 may be provided by forming a groove 8 having an opening width and an extended groove 11, or may be provided by forming a through hole.
而して、このような発泡合成樹脂製包装用緩衝
材1では、これを用いて被包装物3を包装し、ダ
ンボール箱9に収納して輸送する途上等に、落下
や他の物が衝突する等して、衝撃力が負荷された
ときに肉抜き用凹部5の内圧がダンボール箱9内
面との間で空気が密閉されて圧縮されることで外
部に上昇しても、この圧縮空気を通気部6を通じ
て逃がすことができ、被包装物3に理論値より高
い衝撃力となつて負荷されたり、又肉抜き用凹部
5周囲の側壁7を破損させたりする問題を回避で
きる。又、被包装物3の収容用凹部4と肉抜き用
凹部5は完全に独立しているから、この肉抜き用
凹部5内で発生する圧縮空気が被包装物3と直接
接触して、被包装物が損傷する等の悪影響を及ぼ
す問題もないのである。 Therefore, when the packing material 1 made of foamed synthetic resin is used to package the packaged object 3 and is transported after being stored in the cardboard box 9, it is difficult to prevent it from falling or colliding with other objects. Even if the internal pressure of the hollowing recess 5 rises to the outside as the air is sealed and compressed with the inner surface of the cardboard box 9 when an impact force is applied, this compressed air is It can escape through the ventilation part 6, and it is possible to avoid the problem of being loaded with an impact force higher than the theoretical value on the packaged object 3, or damaging the side wall 7 around the recess 5 for thinning. In addition, since the storage recess 4 and the thinning recess 5 of the packaged object 3 are completely independent, the compressed air generated in the thinning recess 5 comes into direct contact with the packaged object 3, and the There is no problem of harmful effects such as damage to the package.
以上のような本考案に係る発泡合成樹脂製包装
用緩衝材では、衝撃力が負荷されたときに発生す
る肉抜き用凹部内の圧縮空気は通気部を通じて外
部に逃がすことができるから、この圧縮空気が原
因となつて、結果として被包装物に理論値より高
い衝撃力となつて負荷されたり、又は肉抜き用凹
部周囲の側壁が破損すること等の問題を回避でき
る。又、被包装物の収容用凹部と肉抜き用凹部は
完全に独立しているから、強度低下の問題がな
く、この肉抜き用凹部内で発生する圧縮空気が被
包装物に悪影響を及ぼす問題もないのである。
In the foamed synthetic resin packaging cushioning material according to the present invention as described above, the compressed air in the recess for lightening that is generated when an impact force is applied can escape to the outside through the ventilation part. It is possible to avoid problems such as an impact force higher than a theoretical value being applied to the packaged item due to air, or damage to the side wall around the recess for thinning. In addition, since the recess for storing the packaged object and the recess for removing lightening are completely independent, there is no problem of strength deterioration, and there is no problem of compressed air generated in the recess for removing weight having an adverse effect on the packaged object. There is none.
第1図は本考案に係る発泡合成樹脂製包装用緩
衝材を示す斜視図、第2図は同じく要部を示す断
面図、第3図は他の実施例の要部を示す断面図、
第4図は従来の包装用緩衝材を示す断面図であ
る。
1……発泡合成樹脂製包装用緩衝材、2……受
圧面、3……被包装物、4……収容用凹部、5…
…肉抜き用凹部、6……通気部、7……側壁、8
……凹溝、9……ダンボール箱、10……側壁、
11……延長凹溝。
FIG. 1 is a perspective view showing a cushioning material for packaging made of foamed synthetic resin according to the present invention, FIG. 2 is a sectional view showing the main parts of the same, and FIG. 3 is a sectional view showing the main parts of another embodiment.
FIG. 4 is a sectional view showing a conventional packaging cushioning material. DESCRIPTION OF SYMBOLS 1... Cushioning material for packaging made of foamed synthetic resin, 2... Pressure-receiving surface, 3... Item to be packaged, 4... Recessed portion for accommodation, 5...
... Recess for lightening, 6 ... Ventilation section, 7 ... Side wall, 8
... groove, 9 ... cardboard box, 10 ... side wall,
11...Extended groove.
Claims (1)
包装物の外面外側に対応する部分に壁体を残し
て凹設するとともに、受圧面側に肉抜き用凹部
を壁体で周囲並びに天井部分を囲んで凹設し、
更には肉抜き用凹部周囲の側壁にこの肉抜き用
凹部と外部を連通させる通気部を開設した発泡
合成樹脂製包装用緩衝材。 2 通気部が、肉抜き用凹部の側壁の受圧面側に
横断的に開口幅を有する凹溝を形成して開設さ
れた請求項1記載の発泡合成樹脂製包装用緩衝
材。 3 通気部が、肉抜き用凹部の側壁の受圧面側に
横断的に形成した凹溝の肉抜き用凹部と反対側
端部から収容凹部側位の側壁の受圧面と反対側
に開放した同じ開口幅を有する延長凹溝を更に
形成して開設された請求項2記載の発泡合成樹
脂製包装用緩衝材。[Scope of Claim for Utility Model Registration] 1. A concave part for accommodating the packaged object is provided on the side opposite to the pressure-receiving surface, leaving a wall in a portion corresponding to the outer surface of the packaged object, and a hollow part is provided on the pressure-receiving surface side. A recess for use is provided with a wall surrounding the surrounding area and the ceiling,
Furthermore, the foamed synthetic resin packaging cushioning material is provided with a ventilation section on the side wall around the recess for lightening, which communicates the recess for lightening with the outside. 2. The foamed synthetic resin packaging cushioning material according to claim 1, wherein the ventilation portion is formed by forming a groove having a transverse opening width on the pressure-receiving surface side of the side wall of the hollowing recess. 3. The ventilation part is opened from the opposite end of the hollow groove formed transversely on the pressure receiving surface side of the side wall of the hollowing recess to the side opposite to the pressure receiving surface of the side wall of the accommodation recess. 3. The foamed synthetic resin packaging cushioning material according to claim 2, further comprising an extended groove having an opening width.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987057964U JPH0518287Y2 (en) | 1987-04-16 | 1987-04-16 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1987057964U JPH0518287Y2 (en) | 1987-04-16 | 1987-04-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS63164477U JPS63164477U (en) | 1988-10-26 |
JPH0518287Y2 true JPH0518287Y2 (en) | 1993-05-14 |
Family
ID=30888133
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1987057964U Expired - Lifetime JPH0518287Y2 (en) | 1987-04-16 | 1987-04-16 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0518287Y2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4361349B2 (en) | 2003-11-14 | 2009-11-11 | 三菱電機株式会社 | Packing cushioning material and degassing packing method |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5421072U (en) * | 1977-07-12 | 1979-02-10 | ||
JPS57154682U (en) * | 1981-03-23 | 1982-09-28 |
-
1987
- 1987-04-16 JP JP1987057964U patent/JPH0518287Y2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPS63164477U (en) | 1988-10-26 |
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