JPH01308735A - Tank - Google Patents
TankInfo
- Publication number
- JPH01308735A JPH01308735A JP63131165A JP13116588A JPH01308735A JP H01308735 A JPH01308735 A JP H01308735A JP 63131165 A JP63131165 A JP 63131165A JP 13116588 A JP13116588 A JP 13116588A JP H01308735 A JPH01308735 A JP H01308735A
- Authority
- JP
- Japan
- Prior art keywords
- tank
- wall
- peripheral wall
- insert
- projection
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 23
- 229920003002 synthetic resin Polymers 0.000 claims description 3
- 239000000057 synthetic resin Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 3
- 238000000071 blow moulding Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
- B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
Landscapes
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
この発明は、ブロー成形品である合成樹脂製の周壁を備
えたタンクの改良に関し、内圧または外圧がかかる車両
用又は産業機械用のエアクリーナケース、パワーステア
リングオイル用タンクとして好適である。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to an improvement of a tank having a peripheral wall made of synthetic resin, which is a blow-molded product, and relates to an air cleaner case for a vehicle or industrial machine that is subject to internal or external pressure. , suitable as a power steering oil tank.
〈従来の技術〉
一般的に、樹脂製のタンクは周壁の剛性が小さいので、
リブ等の補強部材が必要であった。かかるリブを設ける
ために、従来では、タンクを２分割し、各分割片（リブ
を有する）を射出成形して、その後、溶着等の手段を用
いて各分割片を相互に接着し、製品であるタンクを形成
していた。<Conventional technology> Generally speaking, resin tanks have low rigidity around their surrounding walls.
Reinforcing members such as ribs were required. Conventionally, in order to provide such ribs, the tank is divided into two parts, each divided piece (having ribs) is injection molded, and then each divided piece is adhered to each other using means such as welding to form a product. It formed a tank.
しかし、このようにして形成されるリブ付きのタンクは
、各分割片を接着する作業に手間がかかるので、製造コ
ストの高いもの、即ち高価なものとなっていた。However, the ribbed tank formed in this manner requires a lot of work to adhere each divided piece, and therefore has a high manufacturing cost, that is, it is expensive.
そこで、各分割片の接着作業が不要なブロー成形で、当
該タンクの周壁を形成することが考えられる。Therefore, it may be possible to form the peripheral wall of the tank by blow molding, which does not require the work of gluing each divided piece together.
〈発明が解決しようとする課題〉
しかしながら、タンクの周壁をブロー成形したときには
、リブを立てることがで鮒ない、従って、肉厚調整によ
り周壁へ所望の剛性を付与することになる。ところが、
ブロー成形では製品の肉厚が略一定となるために、所望
の剛性を備えたブロー成形品の周壁は、射出成形品に比
べて全体的に厚肉となる。<Problems to be Solved by the Invention> However, when the peripheral wall of the tank is blow-molded, it is difficult to erect ribs, and therefore, desired rigidity must be imparted to the peripheral wall by adjusting the wall thickness. However,
In blow molding, the wall thickness of the product is approximately constant, so the peripheral wall of a blow molded product with desired rigidity is thicker overall than that of an injection molded product.
これでは、タンクの材料コストが上昇するばかりでなく
、製品が高重量化するという課題があるく課題を解決す
るための手段〉
この発明は、上記課題を解決することを目的としてなさ
れた。即ち、ブロー成形品である合成樹脂製の周壁を備
えたタンクであって、周壁には、波形状の凸条部または
凹条部の少なくとも一方が、１条または複数条形成され
ている構成を特徴とする。This not only increases the material cost of the tank, but also increases the weight of the product.Means for Solving the Problems> The present invention was made with the aim of solving the above problems. That is, the tank is equipped with a peripheral wall made of synthetic resin that is a blow-molded product, and the peripheral wall has one or more wavy protrusions or grooves formed on the peripheral wall. Features.
〈実施例〉 以下、この発明を実施例に基づき詳細に説明する。<Example> Hereinafter, this invention will be explained in detail based on examples.
実施例のタンク１は、第１図のように、直方体形状の周
壁３とインサート１０とを備えてなる。The tank 1 of the embodiment includes a rectangular parallelepiped-shaped peripheral wall 3 and an insert 10, as shown in FIG.
周壁３における一対の広い側面３ａには、それぞれ水平
方向へ波形状の凸条部５が１条形成されている０周壁３
における一対の狭い側面３ｂには、それぞれ水平方向へ
平板形状のフランジ部７が１条形成され、各凸条部５と
連続している。また、側面３ａと上面３Ｃにはニップル
８．９が立設されている。A circumferential wall 3 in which a pair of wide side surfaces 3a of the circumferential wall 3 are each formed with one wavy convex strip 5 in the horizontal direction.
A flat plate-shaped flange portion 7 is formed in a horizontal direction on each of the pair of narrow side surfaces 3b, and is continuous with each protruding portion 5. Further, a nipple 8.9 is provided upright on the side surface 3a and the top surface 3C.
なお、第２図に示すように、垂直方向の波形凸条部５ａ
を側面３ａへ形成することもできる０図中の符号７ａは
フランジ部である。また、各フランジ部７．フａを部分
的又は全体的に渡船状とすることもできる。第１図では
、凸条部５の波形状として略階段状のものを示したが、
これに限定されるわけではない０例えば、第３図の如く
四角状の凸条部５ｂ、又は第４図のごとく半円形の凸条
部５ｃを適用することができる。更には、側面３ａに形
成する凸条部を非連続的なものとすることができる。In addition, as shown in FIG.
Reference numeral 7a in FIG. 0 indicates a flange portion, which can also be formed on the side surface 3a. In addition, each flange portion 7. The fa can also be partially or completely shaped like a ferry. In FIG. 1, the wave shape of the protruding portion 5 is shown to be approximately step-like.
For example, a rectangular protruding portion 5b as shown in FIG. 3 or a semicircular protruding portion 5c as shown in FIG. 4 may be applied, but the present invention is not limited thereto. Furthermore, the protrusions formed on the side surface 3a can be discontinuous.
インサート１０は、第５図のごとく、一対の波形付形部
１１と一対のフランジ付形部１３とを環状に連結してな
る。各波形付形部１１は周壁３の凸条部５の上下壁で挟
まれており（第１０図参照）、かつ、各波形付形部１１
は２本の補強杆１５で連結されている。フランジ付形部
１３から膨出される板状の部材は把持部１７である。こ
の把持部１フは、ブロー成形用金型４ｏヘインサート１
０をセットするときに用いるものであり（３４９図参照
）、周壁３が形成された後には、フランジ付形部１３か
ら切除される。As shown in FIG. 5, the insert 10 is formed by connecting a pair of corrugated portions 11 and a pair of flanged portions 13 in an annular shape. Each corrugated portion 11 is sandwiched between the upper and lower walls of the convex strip portion 5 of the peripheral wall 3 (see FIG. 10), and each corrugated portion 11
are connected by two reinforcing rods 15. A plate-shaped member bulging from the flanged portion 13 is a grip portion 17 . This gripping part 1 is attached to the blow molding mold 4o han insert 1
It is used when setting 0 (see Figure 349), and is cut out from the flanged portion 13 after the peripheral wall 3 is formed.
第６図は他のインサート２０を示している。このインサ
ート２０は波形に折り曲げられた紙製のフィルタ一部２
１と、樹脂製の把持部１フとからなる０両者は接着若し
くはインサート成形により一体化されている。フィルタ
一部２１の長手辺が波形付形部２３に、短手辺がフラン
ジ付形部２５になる。FIG. 6 shows another insert 20. This insert 20 is a part 2 of a paper filter folded into a corrugated shape.
1 and a gripping portion 1 made of resin are integrated by adhesion or insert molding. The long side of the filter part 21 becomes the corrugated part 23, and the short side becomes the flange part 25.
かかるインサート２０を備えたタンクは、車両用のエア
クリーナケースとして好適なものとなる第７図も当該エ
アクリーナタンク等に適用されるインサート３０を示し
ている。このインサート３０は、第６図の構成のインサ
ート２０へ枠部３１が配設されたものである。この枠部
３１は把持部１７と一体成形されている。A tank equipped with such an insert 20 is suitable as an air cleaner case for a vehicle. FIG. 7 also shows an insert 30 applied to the air cleaner tank and the like. This insert 30 has a frame portion 31 disposed in the insert 20 having the configuration shown in FIG. This frame portion 31 is integrally molded with the grip portion 17.
第８図は、他の態様の把持部３７と枠部３３を示してい
る。この枠部３３は把持部３フに対してヒンジ結合され
た上部材３４と下部材３５とからなり、上下部材３４．
３５でフィルタ一部２１を挟む構成である。そして、フ
ランジ３８．３９を相互に連結（接着、ビス止め、螺子
止め、クリップ止め等）することでフィルタ一部２１を
固定する。FIG. 8 shows the grip portion 37 and frame portion 33 in another embodiment. This frame part 33 consists of an upper member 34 and a lower member 35 which are hinged to the grip part 3, and the upper and lower members 34.
35 sandwich the filter part 21. Then, the filter part 21 is fixed by connecting the flanges 38 and 39 to each other (by bonding, screwing, screwing, clipping, etc.).
次に、タンク１の製造方法について説明をするまず、第
５図に示した構成のインサート１０を射出成形する（成
形材料；ＰＰ）、そしてこのインサート１０ヘバリソン
５・Ｏ（成形材料；ＰＰ）を外装して、第９図に示した
ブロー成形用金型４０ヘセツトする。この金型４０は第
１分割型４１と第２分割型４３とからなる。各分割割型
４１゜４３の各対向面には、インサート１０の波形付形
部１１に対応した波形部４１ａ、４３ａ、およびインサ
ート付形部１３に対応した溝部４１ｂ、４３ｂが形成さ
れている。なお、型締め時（図に仮想線で示した。）に
は、波形部４１ａ−波形付形部１１−波形部４３ａ間に
、パリソン５０の厚さに略等しい間隔が取られているる
、溝部４１ｂ〜フランジ付形部１３−溝部４３ｂ間にも
同様な間隔が取られている。Next, the manufacturing method of the tank 1 will be explained. First, the insert 10 having the configuration shown in FIG. It is packaged and placed in a blow molding mold 40 shown in FIG. This mold 40 consists of a first divided mold 41 and a second divided mold 43. Waveform portions 41a and 43a corresponding to the waveform forming portion 11 of the insert 10 and groove portions 41b and 43b corresponding to the insert forming portion 13 are formed on each opposing surface of each of the split molds 41 and 43. Note that when the mold is clamped (indicated by imaginary lines in the figure), an interval approximately equal to the thickness of the parison 50 is provided between the corrugated portion 41a, the corrugated portion 11, and the corrugated portion 43a. A similar interval is also provided between the groove portion 41b and the flanged portion 13 and the groove portion 43b.
その後、金型４０内へ空気を吹き込み、型開きをし、イ
ンサート１ｏから把持部１７を除去すると第１図に示し
たタンク１が得られる。Thereafter, air is blown into the mold 40, the mold is opened, and the gripping portion 17 is removed from the insert 1o to obtain the tank 1 shown in FIG. 1.
他のインサート２０．３０を用いるときも上記と同様に
してタンク（エアクリナヶース）を形成する。When using other inserts 20 and 30, a tank (air cleaner case) is formed in the same manner as above.
波形状の凸条部５は、波状付形部１１の介添えがなくて
も、金型４ｏのキャビティ調整により、周壁３へ形成す
ることができる（第１１図参照）。この場合には、イン
サートが不要となる。なお、第２図の凸条部５ａは、第
１２図に示したキャビティ４５を備えた金型を用いるか
、４つ割りの金型を用いる。The wavy protruding portion 5 can be formed on the peripheral wall 3 by adjusting the cavity of the mold 4o without the aid of the wavy shaped portion 11 (see FIG. 11). In this case, no insert is required. In addition, for the protruding portion 5a of FIG. 2, a mold having a cavity 45 shown in FIG. 12 or a mold divided into four parts is used.
このようにして形成されるタンク１は、その周壁３がブ
ロー成形されたものであっても、波形状の凸条部５を備
えているので、当該周壁３へ所望の剛性が得られる。Even if the tank 1 formed in this manner has the peripheral wall 3 formed by blow molding, the desired rigidity can be obtained in the peripheral wall 3 because it is provided with the corrugated protruding strips 5.
周壁の剛性は、凸条部における波の深さとピッチ、及び
凸条部の形成数を増減することで、任意に調整すること
ができる。The rigidity of the peripheral wall can be arbitrarily adjusted by increasing or decreasing the depth and pitch of the waves in the protrusions and the number of protrusions formed.
勿論、周壁へ波形状の凹条部を形成してもその剛性は高
くなる。凹条部と凸条部とを周壁へ混在させてもよい。Of course, even if a wavy groove is formed on the peripheral wall, its rigidity will be increased. The grooves and the protrusions may be mixed on the peripheral wall.
なお、凹条部６を形成する場合には、第１３図のように
キャビティ４５ａを調整する。In addition, when forming the grooved portion 6, the cavity 45a is adjusted as shown in FIG. 13.
〈発明の作用・効果〉
以上説明したように、この発明のタンクは、周壁に波形
状の凸条部または凹条部の少なくとも一方が１条または
複数条形成されている構成を特徴とする。このように、
波形状の凸条部を備える周壁は、肉厚同一の条件におい
て、波形状のないものに比べ、その剛性が向上する。つ
まり、凸条部がリブの働ぎをするからである。そして、
波形状の凸条部はタンクの周壁をブロー成形するときに
、同時に形成することができる。<Operations and Effects of the Invention> As explained above, the tank of the present invention is characterized by a configuration in which at least one or more wave-shaped protrusions or grooves are formed on the peripheral wall. in this way,
A peripheral wall having a wavy protrusion has improved rigidity compared to a wall without a wavy shape under the same wall thickness condition. In other words, this is because the protruding stripes function as ribs. and,
The corrugated protrusions can be formed at the same time as blow molding the peripheral wall of the tank.
従って、この発明のタンクは、その周壁がブロー成形品
であっても、所望の剛性を維持しつつ、周を肉厚を従来
品に比して、薄肉化することができる。つまり、この発
明によれば、タンクの材料コストが低下するとともに、
製品も軽量化する効果がある。Therefore, even if the circumferential wall of the tank of the present invention is a blow-molded product, the circumferential wall can be made thinner than conventional products while maintaining the desired rigidity. In other words, according to this invention, the material cost of the tank is reduced, and
It also has the effect of making the product lighter.
第１図は実施例のタンク１の゛斜視図、第２図はタンク
１の変形態様を示す斜視図、第３．４図は変形態様の凸
条部５ｂ、５ｃを示す正面図、
第５図はインサート１ｏの斜視図、
第６．７図は変形態様のインサート２０．３０を示す斜
視図、
第８図は変形態様の枠部３３を示す斜視図、第９図ブロ
ー成形用金型４ｏの断面図、第１Ｏ図は凸条部５の成形
方法を示す一部断面図、
第１１〜１３図はブロー成形用金型におけるキャビティ
の変形態様を示す一部断面図。
１・・・タンク、
３・・・周壁、
５．５ａ、５ｂ、５ｃ・・・波形状の凸条部。
特 許 出 願 人
豊田合成株式会社
第３図
５ｂ
ノ
第５図
第 ９ 図
３ａ
第 １２ 図
ン
３ｏノ 佃や ３６Fig. 1 is a perspective view of the tank 1 of the embodiment, Fig. 2 is a perspective view showing a modified form of the tank 1, Fig. 3.4 is a front view showing the protrusions 5b and 5c of the modified form, The figure is a perspective view of the insert 1o, Figure 6.7 is a perspective view of a modified insert 20.30, Figure 8 is a perspective view of a modified frame 33, and Figure 9 is a blow molding die 4o. FIG. 1O is a partial cross-sectional view showing a method of forming the protruding strip 5, and FIGS. 11 to 13 are partial cross-sectional views showing a modified form of a cavity in a blow molding die. DESCRIPTION OF SYMBOLS 1... Tank, 3... Peripheral wall, 5.5a, 5b, 5c... Wave-shaped convex stripe. Patent application Toyoda Gosei Co., Ltd. Figure 3 5b Figure 5 Figure 9 Figure 3a Figure 12 Figure 3o Tsukuda 36
Claims (1)
あつて、 前記周壁には、波形状の凸条部または凹条部の少なくと
も一方が、１条または複数条形成されている ことを特徴とするタンク。[Scope of Claims] A tank having a peripheral wall made of a synthetic resin that is a blow-molded product, wherein the peripheral wall has one or more wavy protrusions or grooves formed therein. A tank characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63131165A JPH01308735A (en) | 1988-05-27 | 1988-05-27 | Tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63131165A JPH01308735A (en) | 1988-05-27 | 1988-05-27 | Tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01308735A true JPH01308735A (en) | 1989-12-13 |
Family
ID=15051527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63131165A Pending JPH01308735A (en) | 1988-05-27 | 1988-05-27 | Tank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01308735A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000140535A (en) * | 1998-11-02 | 2000-05-23 | Excel Kk | Blow-molded product with filter function and its manufacture |
| JP2003072729A (en) * | 2001-08-27 | 2003-03-12 | Toyo Seikan Kaisha Ltd | Plastic bottle |
-
1988
- 1988-05-27 JP JP63131165A patent/JPH01308735A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000140535A (en) * | 1998-11-02 | 2000-05-23 | Excel Kk | Blow-molded product with filter function and its manufacture |
| JP2003072729A (en) * | 2001-08-27 | 2003-03-12 | Toyo Seikan Kaisha Ltd | Plastic bottle |
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