JPS62135150A - Drum made of synthetic resin - Google Patents
Drum made of synthetic resinInfo
- Publication number
- JPS62135150A JPS62135150A JP60267527A JP26752785A JPS62135150A JP S62135150 A JPS62135150 A JP S62135150A JP 60267527 A JP60267527 A JP 60267527A JP 26752785 A JP26752785 A JP 26752785A JP S62135150 A JPS62135150 A JP S62135150A
- Authority
- JP
- Japan
- Prior art keywords
- top plate
- grip
- synthetic resin
- drum
- base
- 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.)
- Pending
Links
Landscapes
- Containers Having Bodies Formed In One Piece (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は化学薬品などを運搬する容器として好適な構造
を備えた合成樹脂製ドラムに関する。さらにくわしくは
、天板および地板とがオレフィン系重合体を中空成形に
よって一体に形成され、かつ天板または地板に握持部全
備え、この握持部のつけ根が外周から少なくとも１５ｍ
ｍ内側に設けられ、さらに握持部の傾斜した圧縮の幅が
少なくとも１５錫有し、かつ天板の中央部が握持部のつ
け根に比べ、球形状や円弧状に凸になシ、さらに握持部
に少なくとも一つの水抜き穴を有する合成樹脂製ドラム
に関するものであシ、化学薬品などを運搬する容器とし
て好適な構造を備えた合成樹脂製ドラムを提供すること
を目的とするものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a synthetic resin drum having a structure suitable as a container for transporting chemicals and the like. More specifically, the top plate and the base plate are integrally formed by blow-molding an olefin polymer, and the top plate or the base plate is provided with a grip portion, and the base of the grip portion is at least 15 meters from the outer periphery.
m, the width of the inclined compression of the grip part is at least 15 tin, and the central part of the top plate is not convex in a spherical or arcuate shape compared to the base of the grip part, and This invention relates to a synthetic resin drum having at least one drainage hole in its grip, and its purpose is to provide a synthetic resin drum with a structure suitable for use as a container for transporting chemicals, etc. be.
従来の技術
ドラムのごとき大型容器の樹脂化は＠量化、耐久性の向
上、防錆性の向上などを図る場合に極めて有効とされ、
欧米ではすでに各種の合成樹脂製ドラムが使用されてい
る。我が国においても、現在のところそのほとんどが金
属製であるクローズドラムの樹脂化の検討が急速に進め
られている。Conventional technology The use of resin for large containers such as drums is considered to be extremely effective when aiming to increase mass, improve durability, and improve rust prevention.
Various types of synthetic resin drums are already in use in Europe and America. In Japan as well, studies are rapidly progressing into using resin for closed drums, which are currently mostly made of metal.
しかしながら、既存の鋼製ドラムが普及しているため、
樹脂化の価値は認Ｉ＆、されているものの、ノ為ンドリ
ンダなどについては一部問題があった。However, due to the prevalence of existing steel drums,
Although the value of resin conversion has been recognized, there were some problems with non-tamed Linda.
しかし、天板および地板がオレフィン系重合棒金中空成
形によって一体に成形させ、力λつ天板に握持部全有す
る合成樹脂製ドラムが開発された。However, a synthetic resin drum has been developed in which the top plate and base plate are integrally molded by olefin-based polymer rod hollow molding, and the top plate has an entire grip.
しかしながら、天板に握持部を取付げたことによって屋
外にドラムｖｉ−友てにして保管し几場合、天板に雨水
がＩｆ−ｊる問題がある。However, since the gripping portion is attached to the top plate, there is a problem that rainwater may drip onto the top plate if the drum is stored outdoors.
また、ドラムのような大きな中空成形品の場合では、製
品の板厚が厚くなる。特に、中空成形時にパリソンをは
さむ天板や地板のピンチオフ部が厚くなシ、結晶性ポリ
マーで中空成形すると、金型に接触する製品外面と金型
に接触しない製品内面では、結晶のスピードが異なる。Furthermore, in the case of large hollow molded products such as drums, the thickness of the product is increased. In particular, the pinch-off parts of the top plate and base plate that sandwich the parison during blow molding are thick, and when blow molding a crystalline polymer, the speed of crystallization is different between the outer surface of the product that contacts the mold and the inner surface of the product that does not contact the mold. .
このために平坦な形状の天板では、凹凸が発生し、外観
や水抜さが悪くなるため、冷却時間を長くさせる必要が
あシ、成形のサイクルが長くなってい次。For this reason, with a flat top plate, unevenness occurs, which impairs the appearance and water drainage, requiring a longer cooling time, which lengthens the molding cycle.
以上のことから、本発明はこれらの欠点（問題点）がな
く、すなわち天板の中央部を高くすることによシ、成形
サイクルｔ−短縮および雨水ｔ−握持部に近付けること
ができ、さらに握持部に穴を開けることによって屋外放
置時の雨水抜けなどｔ改良した合成樹脂製ドラムを得る
ことである。From the above, the present invention does not have these drawbacks (problems), that is, by raising the center of the top plate, the molding cycle can be shortened and the rainwater can be brought closer to the gripping part. Furthermore, by making holes in the gripping part, it is possible to obtain a synthetic resin drum which has improved drainage of rainwater when left outdoors.
問題点７ｆｒ：解決するための手段
本発明にしたがえば、これらの問題点は天板および地板
とがオレフィン系重合体全中空成形によって一体に成形
され、かつ天板または地板に握持部を備え、この握持部
のつけ根が外周から少なくとも１５ｍｍ内側に設けられ
、さらに握持部の傾斜した圧縮部の幅が少なくとも１５
■有し、かつ天板の中央部が握持部のつげ根に比べ、球
形状や円弧状に５ｕ以上凸になシ、さらに握持部に少な
くとも一つの水抜き穴を有する合成樹脂製ドラム、によ
って解決することができる。以下、本発明全具体的に説
明する。Problem 7fr: Means for Solving According to the present invention, these problems can be solved by forming the top plate and the base plate integrally by full hollow molding of an olefin polymer, and by attaching a grip portion to the top plate or the base plate. The base of the grip portion is provided at least 15 mm inward from the outer periphery, and the width of the inclined compressed portion of the grip portion is at least 15 mm.
■Synthetic resin drum with a central part of the top plate that has a spherical or arcuate convexity of 5 u or more compared to the boxwood of the grip, and at least one drainage hole in the grip. , can be solved by. Hereinafter, the present invention will be fully explained in detail.
本発明において使われるオレフィン系重合体は、なかで
も密度が０．９３５１ ／ｃｎｔ’以上のエチレン単独
重合体およびエチレンを主成分とするエチレンとα−オ
レフィン（通常炭素数は３〜１２個、共重合割合は多く
とも１５重ｉ％）との共重合体が好適である。これらの
エチレン単独重合体およびエチレンとα−オレフィンと
の共重合体の分子旦は容器の大きさく容量）によって異
なるが、メルトフローインデックス（ＪＩＳＫ−６７６
０にしたがい、温度が１９０℃および荷重が２１．６ｋ
ｇの条件で測定、以下ｒ ＨＬＭＥＲＪと云う）として
、たとえば容量が２００Ａ！の容器の場合では、一般に
は５．０ｆｌ／１０分以下であシ、４．Ｏ，９７１０分
以下のものが好ましく、特に３．５１１／１０分以下の
ものが好適である。ま九、容量が２０１の容器の場合で
は、通常ＨＬＭＥＲｕ５〜５０／１０分であシ、１０〜
５０．９／１０分のものが望ましく、とシわけ１０〜４
０．９７１０分のものが好適である。The olefin polymers used in the present invention are, among others, ethylene homopolymers having a density of 0.9351/cnt' or more, and ethylene and α-olefins containing ethylene as the main component (usually having 3 to 12 carbon atoms, copolymer). A copolymer with a polymerization ratio of at most 15% by weight is suitable. The molecular weight of these ethylene homopolymers and copolymers of ethylene and α-olefins varies depending on the container size and capacity, but the melt flow index (JISK-676
According to 0, the temperature is 190℃ and the load is 21.6k.
Measured under the conditions of g, hereinafter referred to as r HLMERJ), for example, the capacity is 200 A! In the case of a container, it is generally 5.0 fl/10 minutes or less; 4. O, 9710 minutes or less are preferred, and 3.511/10 minutes or less are particularly preferred. For containers with a capacity of 201, it is usually HLMERu5~50/10 minutes, and 10~50/10 minutes.
50.9/10 minutes is preferable, and the difference is 10-4
A value of 0.9710 minutes is suitable.
以上のオレフィン系重合体をオレフィン系重合体の分野
において一般に実施されている中空成形（プロー成形）
法によって、側板ならびに後記の握持部などを備えた天
板を具備し、さらに天板を凸状にさせ、さらに握持部に
水抜き穴倉開けたドラムｔ−製造することによって本発
明を達成することができる。このさい、成形する成形す
る温度は通常１８０〜２５０℃であシ、特に１９０〜２
３０℃が好適である。The above olefin polymers are processed by blow molding, which is commonly performed in the field of olefin polymers.
The present invention was achieved by manufacturing a drum t-type, which is equipped with a top plate equipped with side plates and a gripping part described below, and further has a convex top plate and a drain hole drilled in the gripping part. can do. At this time, the molding temperature is usually 180~250℃, especially 190~250℃.
30°C is preferred.
本発明の合成樹脂ドラムの特長は、握持部を天板に有し
、この天板の中央部を凸状にして、成形サイクルの短縮
および天板中央部の水はけを良くし、さらに握持部に水
抜き穴を取付けることによって握持部の内側に留まる水
をドラムの外部に放出させることが可能となった。The synthetic resin drum of the present invention has a gripping portion on the top plate, and the center of the top plate is made convex to shorten the molding cycle and improve water drainage in the center of the top plate. By installing a drain hole in the grip part, it became possible to release water that remained inside the grip part to the outside of the drum.
以下、本発明にしｆｃがって合成樹脂製ドラムの一真体
例図示されている第１ないし第３図を参照し説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described with reference to FIGS. 1 to 3, which illustrate an example of a synthetic resin drum.
ｉ＠１図は本発明の合成樹脂製ドラムの側面図である。Figure i@1 is a side view of the synthetic resin drum of the present invention.
この図において、′１はドラム本体である。In this figure, '1' is the drum body.
２は天板に設けられ几握持部あシ、また３は地板に設け
られた握持部である。Reference numeral 2 represents a gripping part provided on the top plate, and numeral 3 represents a gripping part provided on the base plate.
第２図は該ドラムの握持部付近の部分（第１図ｊにおい
てＡとして示されている）拡大断面口である。この図に
おいて、４は握持部であシ、５は天板である。また、６
（は外周（側板）であシ、７は水抜き穴である。FIG. 2 is an enlarged cross-sectional view of the portion of the drum near the grip (indicated as A in FIG. 1j). In this figure, 4 is a grip part, and 5 is a top plate. Also, 6
( is the outer periphery (side plate), and 7 is the drain hole.
第３図は第１図のＢ−Ｈの断面図である、−この図にお
いて、９は水抜き穴であり、１ｏおよび１１は口栓部で
ある１２は中央部が凸状になっている天板であシ、１３
は天板に設けられｆｃ握持部であシ、１４は外Ｊ？＋１
（側板）である、１６は地板１５に設けられた握持部で
ある。Fig. 3 is a sectional view taken along line B-H in Fig. 1. - In this figure, 9 is a drain hole, 1o and 11 are spout parts, and 12 is a convex central part. Top plate, 13
is the fc grip part provided on the top plate, and 14 is the outside J? +1
(side plate) 16 is a grip portion provided on the main plate 15.
実施例および比較例
以下、実施例によって本発明ｔさらにくわしく説明する
。ドラム本体は密度０．９５ＯＮ／創３であシ、かつＨ
ＬＭＦＲ５，０１１／ １０分の高密度ポリエチレンを
用いた。EXAMPLES AND COMPARATIVE EXAMPLES The present invention will now be explained in more detail with reference to Examples. The drum body has a density of 0.95ON/3 holes and H
High-density polyethylene with an LMFR of 5,011/10 minutes was used.
実施例１ 比較例１
前記の高密度ポリエチレンを使用して樹脂温度が２００
℃で中空成形することにより形成される高さが９００ｍ
であり、外径（最大）が６００■である容量が２１０６
の高密度ポリエチレン製ドラムを製造した。Example 1 Comparative Example 1 Using the above-mentioned high-density polyethylene, the resin temperature was 200℃.
The height formed by blow molding at ℃ is 900m.
and the capacity is 2106 with an outer diameter (maximum) of 600
A high-density polyethylene drum was manufactured.
実施例１は、第２図においてａが２０ｍでありｂが３０
露である握持部？有し、さらに第３図においてＣが１０
ｍ高くなったものであシ、総Ｎ量が９．８ ｋｇである
。In Example 1, a is 20 m and b is 30 m in Fig. 2.
The grip part that is dew? Furthermore, in FIG. 3, C is 10
The total N amount is 9.8 kg.
また比較例は握部の寸法は実施例１と等しく、天板が平
坦なものであシ、総重量が９．８ ｋｇである。In the comparative example, the dimensions of the grip are the same as in Example 1, the top plate is flat, and the total weight is 9.8 kg.
これらの製品を得るために金Ｗを冷凍機で１０℃または
１５℃まで冷却し変形の少ない高密度ポリエチレン製ド
ラムの生産個数を表１に示す。In order to obtain these products, gold W was cooled to 10°C or 15°C in a refrigerator, and the number of produced high-density polyethylene drums with little deformation is shown in Table 1.
なお第１表において示されている数字は１時間に生産さ
れる個数である。The numbers shown in Table 1 are the numbers produced per hour.
第１表
発明の効果
本発明の合成樹脂（オレフィン系重合体）製ドラムはそ
の製造工程も含めて下記のごとき効果＜＊徴）？発揮す
る。Table 1 Effects of the Invention The synthetic resin (olefin polymer) drum of the present invention, including its manufacturing process, has the following effects (<*Character)? Demonstrate.
（１）鋼製ドラムのハンドリング治具で運搬が可能であ
る。(1) It can be transported using a steel drum handling jig.
（２）成形サイクルの短縮が可能である（１８ケ／Ｈｒ
が２４ケ／Ｈｒとなる）。(2) It is possible to shorten the molding cycle (18 pieces/Hr)
becomes 24 cases/Hr).
（３）屋外保管時の水の留シがない。(3) There is no water reservoir during outdoor storage.
（４）低コストで製造することができ、さらに簡易に製
造することが可能である。(4) It can be manufactured at low cost and can be manufactured easily.
（５）軽量である。(5) It is lightweight.
第１図は合成樹脂製ドラムの側面図である。第２図は第
１図のＡ部分の拡大縦断面図であシ、第３図は第１図の
Ｂ −ＢＶＩｊＴ面図である。
１・・・ドラム本体、２．４．１３・・・天板に設けら
れた握持部、３，１６・・・地板に設けられた握持部、
５．１２・・・凸状になった天板、６．１４・・・側板
、７．９・・・水抜き穴、１０．１１・・・口栓部、１
５・・・地板、ａ・・・外周から握持部までの寸法、ｂ
・・・握持部の圧縮の幅、Ｃ・・・握持部つけ根から天
板中央部までの篩さ。FIG. 1 is a side view of a synthetic resin drum. FIG. 2 is an enlarged vertical sectional view of portion A in FIG. 1, and FIG. 3 is a sectional view taken along line B-BVIjT in FIG. 1... Drum body, 2.4.13... Gripping part provided on the top plate, 3, 16... Gripping part provided on the base plate,
5.12...Convex top plate, 6.14...Side plate, 7.9...Drain hole, 10.11...Spout part, 1
5... Main plate, a... Dimension from the outer periphery to the grip part, b
... Compression width of the grip, C... Sieve width from the base of the grip to the center of the top plate.
Claims (1)
って一体に形成され、かつ天板または地板に握持部を備
え、この握持部のつけ根が外周から少なくとも１５ｍｍ
内側に設けられ、さらに握持部の傾斜した圧縮部の幅が
少なくとも１５ｍｍ有し、かつ天板の中央部が握持部の
つけ根に比べ、球形状や円弧状に５ｍｍ以上凸になり、
さらに握持部に少なくとも一つの水抜き穴を有する合成
樹脂製ドラム。The top plate and the base plate are integrally formed by blow molding an olefin polymer, and the top plate or the base plate is provided with a grip, and the base of the grip is at least 15 mm from the outer periphery.
The width of the inclined compression part of the grip provided on the inside is at least 15 mm, and the central part of the top plate is convex in a spherical or arcuate shape by 5 mm or more compared to the base of the grip,
Furthermore, the synthetic resin drum has at least one drainage hole in the grip portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60267527A JPS62135150A (en) | 1985-11-29 | 1985-11-29 | Drum made of synthetic resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60267527A JPS62135150A (en) | 1985-11-29 | 1985-11-29 | Drum made of synthetic resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62135150A true JPS62135150A (en) | 1987-06-18 |
Family
ID=17446066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60267527A Pending JPS62135150A (en) | 1985-11-29 | 1985-11-29 | Drum made of synthetic resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62135150A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01213147A (en) * | 1988-02-10 | 1989-08-25 | Mauser Werke Gmbh | Barrel plug hole |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS575730A (en) * | 1980-06-16 | 1982-01-12 | Asahi Chem Ind Co Ltd | Molding nitrocellulose composition and its preparation |
| JPS5733215A (en) * | 1980-06-14 | 1982-02-23 | Kleinewefers Gmbh | Press treating roll |
| JPS57131525A (en) * | 1981-02-09 | 1982-08-14 | Sekisui Seikei Kogyo Kk | Plastic vessel |
-
1985
- 1985-11-29 JP JP60267527A patent/JPS62135150A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5733215A (en) * | 1980-06-14 | 1982-02-23 | Kleinewefers Gmbh | Press treating roll |
| JPS575730A (en) * | 1980-06-16 | 1982-01-12 | Asahi Chem Ind Co Ltd | Molding nitrocellulose composition and its preparation |
| JPS57131525A (en) * | 1981-02-09 | 1982-08-14 | Sekisui Seikei Kogyo Kk | Plastic vessel |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01213147A (en) * | 1988-02-10 | 1989-08-25 | Mauser Werke Gmbh | Barrel plug hole |
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