JP2544222Y2 - End wall for pressure vessel - Google Patents
End wall for pressure vesselInfo
- Publication number
- JP2544222Y2 JP2544222Y2 JP1989040714U JP4071489U JP2544222Y2 JP 2544222 Y2 JP2544222 Y2 JP 2544222Y2 JP 1989040714 U JP1989040714 U JP 1989040714U JP 4071489 U JP4071489 U JP 4071489U JP 2544222 Y2 JP2544222 Y2 JP 2544222Y2
- Authority
- JP
- Japan
- Prior art keywords
- wall
- end wall
- curvature
- vertical wall
- outer vertical
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 7
- 238000004826 seaming Methods 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- 235000014171 carbonated beverage Nutrition 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000005029 tin-free steel Substances 0.000 description 1
Landscapes
- Rigid Containers With Two Or More Constituent Elements (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は、炭酸飲料缶、ビール缶等の比較的高い内圧
を有する缶詰等に用いられる耐圧容器に適した、耐バッ
クリング性に優れる、缶蓋や缶底等の金属製耐圧容器用
端壁に関する。[Detailed description of the invention] (Industrial application field) The invention is excellent in buckling resistance, which is suitable for pressure-resistant containers used for cans having relatively high internal pressure, such as carbonated beverage cans and beer cans. The present invention relates to a metal pressure-resistant container end wall such as a can lid and a can bottom.
（従来の技術） 耐圧容器用用の端壁は、内圧（例えば約7kgf/cm2）に
対する耐バックリング性を有することが要求され、その
ため従来はこの種の端壁として、板厚の比較的厚いもの
が用いられてきた。(Prior art) End walls for pressure-resistant containers are required to have buckling resistance against internal pressure (for example, about 7 kgf / cm 2 ). Thicker ones have been used.
しかし最近材料コスト低減の見地から、板厚が比較的
薄く、しかも耐バックリング性を有する端壁が形状面か
ら研究された結果、中央パネルの周辺に沿い、比較的深
くかつ幅狭で、しかも厚さが他の部分とほぼ同じである
強化環状溝を有する端壁が提案されている（例えば特公
昭58−46369号公報、特開昭60−193834号公報）。However, recently, from the viewpoint of material cost reduction, the end wall having a relatively small thickness and a buckling resistance has been studied from the aspect of shape, and as a result, it is relatively deep and narrow along the periphery of the central panel, and An end wall having a reinforced annular groove whose thickness is almost the same as other portions has been proposed (for example, Japanese Patent Publication No. Sho 58-46369, Japanese Patent Laid-Open Publication No. Sho 60-193834).
従来提案されている端壁の強化環状溝は、第２図の２
に示すように断面Ｖ字状であって、内側側壁部2aが斜内
側上方に延び、外側側壁部2bが截頭逆円錐形状のチャッ
クウオール３と同一面上にあって斜外側上方に延びてい
るものか、あるいは第３図の６に示すように内側側壁部
6aが短円筒状に垂直に延び、外側側壁部6bが截頭逆円錐
形状のチャックウオール７と同一面状にあって斜外側上
方に延びてなるものであった。なお第２図において１は
端壁、４は中央パネル、また第３図において５は端壁、
８は中央パネルを示す。The conventionally proposed reinforced annular groove in the end wall is shown in FIG.
As shown in the figure, the inner side wall 2a extends obliquely upward and the outer side wall 2b extends obliquely upward and on the same plane as the truncated inverted conical chuck wall 3 as shown in FIG. Or the inner side wall as shown in FIG.
6a extends vertically in the shape of a short cylinder, and the outer side wall 6b is coplanar with the truncated inverted conical chuck wall 7 and extends obliquely upward. In FIG. 2, 1 is an end wall, 4 is a center panel, and 5 is an end wall in FIG.
8 shows a center panel.
このような従来の強化環状溝２、６を有する端壁１、
５は、容器胴部に２重巻締されて、比較的高い内圧の密
封容器の端壁となったとき、傾斜した側壁部2a、2b、6b
等に、内圧による力（例えば第２図のＦ）が作用するた
め、強化環状溝２、６がバックリングを起こし易く、そ
のため端壁の板厚を薄くするのに限度があるという問題
があった。The end wall 1 having such a conventional reinforced annular groove 2, 6;
5 is the side wall portions 2a, 2b, 6b which are double-wound around the container body and become the end walls of the sealed container having a relatively high internal pressure.
For example, since a force due to the internal pressure (for example, F in FIG. 2) acts, the reinforced annular grooves 2 and 6 are liable to cause buckling, and there is a problem that there is a limit in reducing the thickness of the end wall. Was.
（考案が解決しようとする課題） 本考案は、耐バックリング性が改善された耐圧容器用
端壁を提供することを目的とする。(Problem to be solved by the invention) An object of the invention is to provide an end wall for a pressure-resistant container having improved buckling resistance.
（課題を解決するための手段） 本考案は、中央パネル、中央パネルの周縁部に曲率部
を介して接続する、内側垂直壁、断面半円形の底壁部お
よび外側垂直壁よりなる強化環状溝、および外側垂直壁
の上端に接続する截頭逆円錐形のチャックウオールを備
え、外側垂直壁の高さ（h2）が、底壁部の内側曲率半径
（r1）より大きく、かつ中央パネルの深さ（Ｈ）から底
壁部の内側曲率半径（r1）を引いた値（Ｈ−r1）より小
さい、すなわちr1＜h2＜Ｈ−r1であることを特徴とする
耐圧容器用端壁を提供するものである。Means for Solving the Problems The present invention is directed to a reinforced annular groove comprising a central panel, an inner vertical wall, a semicircular bottom wall and an outer vertical wall connected to a peripheral portion of the central panel through a curvature portion. And a truncated inverted conical chuck wall connected to the upper end of the outer vertical wall, wherein the height (h2) of the outer vertical wall is greater than the inner radius of curvature (r1) of the bottom wall and the depth of the central panel. (H) is smaller than a value (H-r1) obtained by subtracting an inner radius of curvature (r1) of the bottom wall portion from the height (H), that is, r1 <h2 <H-r1. Things.
（作用） 端壁を缶胴に２重巻締してなる耐圧密封容器における
強化環状溝のバックリングは次のようにして起こるもの
と考えられる。(Operation) It is considered that the buckling of the reinforced annular groove in the pressure-resistant sealed container formed by double-winding the end wall around the can body occurs as follows.
内圧は静水圧であり、中央パネルの面積が、強化環状
溝やチャックウオールの面積に比べて著しく大きいの
で、密封状態で内圧（例えば7kgf/cm2）による集中荷重
が中央パネルの中央部に加わるものと考えられる。The internal pressure is hydrostatic pressure, and the area of the central panel is significantly larger than the area of the reinforced annular groove and the chuck wall, so a concentrated load due to the internal pressure (for example, 7 kgf / cm 2 ) is applied to the center of the central panel in a sealed state. It is considered something.
この場合、チャックウオールおよび強化環状溝が上記
集中荷重によって、缶の中央向き上方に引っ張られて回
動し、変形が進む。この変形が弾性限を越えると、急に
飛び移るように大変形、すなわちバックリングが起こ
る。In this case, the chuck wall and the reinforced annular groove are pulled upward toward the center of the can by the concentrated load and rotated, and the deformation proceeds. When this deformation exceeds the elastic limit, large deformation, ie, buckling, occurs as if jumping suddenly.
本考案の端壁（10）の場合、強化環状溝（13）の内側
および外側側壁部は何れも軸方向に延びる垂直壁からな
っている。しかも外側垂直壁（13c）は、その高さ（h
2）が底壁部（13b）の内側曲率半径（r1）より大きい。
従って従来の端壁１、５等に比べて強化環状溝（13）の
断面係数（外側垂直壁、内側垂直壁の高さ、底壁部の内
側曲率半径、厚さ等の関数である）が大となり、この部
分が強化されている。そのため板厚を従来の端壁よりさ
らに薄くしても、上記の弾性限を越える大変形が起こり
難く、従って強化環状溝のバックリング、および中央パ
ネルのバックリングが起り難い。In the case of the end wall (10) of the present invention, both the inner and outer side walls of the reinforcing annular groove (13) are vertical walls extending in the axial direction. Moreover, the outside vertical wall (13c) has a height (h
2) is larger than the inner radius of curvature (r1) of the bottom wall (13b).
Therefore, the section modulus (which is a function of the height of the outer vertical wall, the inner vertical wall, the inner radius of curvature of the bottom wall, the thickness, etc.) of the reinforced annular groove (13) as compared with the conventional end walls 1, 5 etc. This has been strengthened. Therefore, even if the plate thickness is made thinner than the conventional end wall, large deformation exceeding the above-mentioned elastic limit is unlikely to occur, so that buckling of the reinforced annular groove and buckling of the central panel hardly occur.
外側垂直壁（13c）の高さh2は、中央パネル（11）の
深さ（Ｈ）から底壁部（13b）の内側曲率半径（r1）を
引いた値（Ｈ−r1）より小さい。すなわちh2＜Ｈ−r1で
ある。従って板厚をｔとすると、Ｈ＋ｔ＞ｔ＋r1＋h2と
なる。そのため外側垂直壁の上端部（13c1）が中央パネ
ル（11）の上面の下方にある。The height h2 of the outer vertical wall (13c) is smaller than the value (H-r1) obtained by subtracting the inner radius of curvature (r1) of the bottom wall (13b) from the depth (H) of the central panel (11). That is, h2 <H-r1. Therefore, assuming that the plate thickness is t, H + t> t + r1 + h2. Therefore, the upper end (13c1) of the outer vertical wall is below the upper surface of the central panel (11).
この場合、チャックウオール（14）が長くなり、２重
巻締の時のシーミングチャック（seaming chuck）と端
壁（10）とのセンターリングが容易になる。そのためシ
ーミングチャックが端壁（10）の内に入り易くなり、シ
ーミングチャックの底部曲率部が巻締の時に強化環状溝
13の底壁部13bの底面に達し易い。そのため上記底部曲
率部が上記底面に比較的高い圧力の下に密接する故、シ
ーミングチャックと端壁10間の周方向のスリップが起こ
り難い。よってスリップに基づく巻締め不良が生じ難
い。In this case, the chuck wall (14) becomes long, and the centering between the seaming chuck and the end wall (10) during double winding tightening becomes easy. This makes it easier for the seaming chuck to enter the end wall (10), and the bottom curved portion of the seaming chuck has a reinforced annular groove when tightening.
It is easy to reach the bottom of the bottom wall 13b of the thirteenth. Therefore, since the bottom curvature portion comes into close contact with the bottom surface under relatively high pressure, circumferential slip between the seaming chuck and the end wall 10 is less likely to occur. Therefore, poor winding tightening due to slip is unlikely to occur.
また外側垂直壁（13c）を擦る距離が小さくなるた
め、端壁（10）に傷が付き難く、塗料粉や金属粉（例え
ばアルミニウム粉）が生じ難い。Further, since the distance for rubbing the outer vertical wall (13c) is reduced, the end wall (10) is not easily damaged, and paint powder and metal powder (for example, aluminum powder) are less likely to be generated.
（実施例） 第１図において端壁10は、中央パネル11、中央パネル
11の周縁部11aに曲率部12を介して接続し、内側垂直壁1
3a、断面半円形の底壁部13bおよび外側垂直壁13cよりな
る強化環状溝13、外側垂直壁13cの上端13c1に接続する
截頭逆円錐形のチャックウオール14、チャックウオール
14の上端に曲率部15を介して接続するシーミングパネル
16およびカール部17よりなっている。(Embodiment) In FIG. 1, the end wall 10 is a central panel 11, a central panel.
11 is connected to the peripheral portion 11a through a curvature portion 12, and the inner vertical wall 1
3a, a reinforced annular groove 13 consisting of a bottom wall portion 13b having a semicircular cross section and an outer vertical wall 13c, a truncated inverted conical chuck wall 14, which is connected to the upper end 13c1 of the outer vertical wall 13c, and a chuck wall.
Seaming panel connected to upper end of 14 via curvature section 15
16 and curl portion 17.
強化環状溝13の各部分の厚さは、端壁10の他の部分、
例えば中央パネル11の厚さ（ｔ）と実質的に等しい。The thickness of each part of the reinforced annular groove 13 is different from that of the other part of the end wall 10,
For example, it is substantially equal to the thickness (t) of the center panel 11.
外側垂直壁13cの高さh2は、底壁部の内側曲率半径（r
1）より大きい、すなわちh2＞r1であることが好まし
い。The height h2 of the outer vertical wall 13c is determined by the inner radius of curvature (r
Preferably, 1) is larger, that is, h2> r1.
さらに外側垂直壁13cの上端13c1は、中央パネル11の
上面より下方に位置することが好ましい。この場合ｔ＋
r1＋h2＜Ｈ＋ｔ、従ってh2＜Ｈ−r1となる。Further, the upper end 13c1 of the outer vertical wall 13c is preferably located below the upper surface of the central panel 11. In this case t +
r1 + h2 <H + t, and therefore h2 <H-r1.
底壁部13bの底端13b1から外側垂直壁13cの上端13c1ま
での高さh1は次の式を満たすことが望ましい。The height h1 from the bottom end 13b1 of the bottom wall 13b to the upper end 13c1 of the outer vertical wall 13c preferably satisfies the following expression.
h1＜0.75k ここにｋはカール部17の厚さである。h1＜0.75kが望
ましいのは、h1≧0.75kとなると、端壁10を互に積重ね
たさい、上下の端壁10の内面と外面が当って、塗膜が損
傷し易く、そのため金属が露出して耐食性が低下するお
それが生ずるからである。h1 <0.75k Here, k is the thickness of the curl portion 17. h1 <0.75k is desirable, when h1 ≥ 0.75k, when the end walls 10 are stacked on each other, the inner surface and the outer surface of the upper and lower end walls 10 hit and the coating film is easily damaged, so the metal is exposed This is because the corrosion resistance may be reduced.
底壁部13bの内側曲率半径r1は0.3〜0.8mmであること
が望ましい。r1が0.8mmより大きくなると、環状溝13の
断面係数が小さくなって耐圧強度が減少し易く、一方0.
3mmより小さくなると、成形のさい塗膜が損傷して、耐
食性が低下し易くなるからである。Desirably, the inner radius of curvature r1 of the bottom wall portion 13b is 0.3 to 0.8 mm. When r1 is larger than 0.8 mm, the sectional modulus of the annular groove 13 is reduced, and the pressure resistance is apt to decrease.
If the thickness is smaller than 3 mm, the coating film is damaged during molding, and the corrosion resistance tends to decrease.
端壁10は例えば次のようにして製造される。 The end wall 10 is manufactured, for example, as follows.
先づ第４図に示すように、ポンチカッター21、ブラン
ク押え29およびコアポンチ23を降下して、錫めっき鋼
板、ティンフリースチール、アルミニウム合金薄板等の
金属板20より、ポンチカッター21により円形ブランク
（図示せず）を打抜き、このブランクをリングダイ22お
よびコアポンチ23により絞って、シーミングパネル対応
部24、チャックウオール対応部25、外側垂直壁対応部26
および中央パネル対応部27を有する端壁プリフォーム28
を形成する。First, as shown in FIG. 4, the punch cutter 21, the blank presser 29 and the core punch 23 are lowered, and a circular blank (from a tin-plated steel plate, tin-free steel, an aluminum alloy thin plate, etc.) The blank is squeezed with a ring die 22 and a core punch 23 to form a seaming panel corresponding portion 24, a chuck wall corresponding portion 25, and an outer vertical wall corresponding portion 26.
And end wall preform 28 with central panel counterpart 27
To form
次に第５図に示すように環状ダイ30に、端壁プリフォ
ーム28のチャックウオール対応部25およびシーミングパ
ネル対応部24の内半部を載置した後、リングポンチ31を
下降してカール部17を形成し、円筒状コアダイ32を上昇
させて、内側垂直壁13a、底壁部13b、外側垂直壁13cを
有する強化環状溝13を形成して、端壁10を作製する。Next, as shown in FIG. 5, the inner half of the chuck wall corresponding portion 25 and the seaming panel corresponding portion 24 of the end wall preform 28 are placed on the annular die 30, and then the ring punch 31 is lowered to curl. The portion 17 is formed, the cylindrical core die 32 is raised, and the reinforced annular groove 13 having the inner vertical wall 13a, the bottom wall portion 13b, and the outer vertical wall 13c is formed, and the end wall 10 is manufactured.
（具体例） （１） 板厚0.250mmのアルミニュウム合金板（A5182P
H19）より次の寸法の端壁10（第１図）を作製した。(Specific examples) (1) Aluminum alloy plate with a thickness of 0.250mm (A5182P
H19), an end wall 10 (FIG. 1) having the following dimensions was prepared.
全高6.4mm、カール部17の直径64.7mm、中央パネル11
の直径52mm、曲率部12の曲率半径r2が0.8mm、中央パネ
ル11の深さＨが2.3mm、底壁部13bの内側曲率半径r1が0.
5mm、底端13b1より外側垂直壁上端13c1までの高さh1が
1.4mm、最小肉厚部（曲率部12の部分）の厚さ0.24mm、
外側垂直壁13cの高さ0.65mm。Overall height 6.4mm, curl part 17 diameter 64.7mm, center panel 11
52 mm in diameter, the curvature radius r2 of the curvature portion 12 is 0.8 mm, the depth H of the central panel 11 is 2.3 mm, and the inside curvature radius r1 of the bottom wall portion 13b is 0.
5mm, height h1 from bottom end 13b1 to outer vertical wall upper end 13c1
1.4 mm, thickness 0.24 mm at minimum thickness (curvature 12),
The height of the outer vertical wall 13c is 0.65 mm.
比較のため同じアルミニュウム合金板より次の寸法の
端壁１（第２図）を作製した。For comparison, an end wall 1 (FIG. 2) having the following dimensions was prepared from the same aluminum alloy plate.
中央パネル４の直径52mm、内側側壁部2aの傾斜角θが
15度、外側側壁部2bの傾斜角δが14度、底壁部2cの内側
曲率半径r3が0.5mm、環状溝２の最小肉厚部の厚さ0.24m
m、その他の寸法は端壁10と同じ。The diameter of the central panel 4 is 52 mm, and the inclination angle θ of the inner side wall 2a is
15 degrees, the inclination angle δ of the outer side wall 2b is 14 degrees, the inner radius of curvature r3 of the bottom wall 2c is 0.5 mm, and the minimum thickness of the annular groove 2 is 0.24 m.
m, other dimensions are the same as end wall 10.
さらに比較のため同じアルミニュウム合金板より次の
寸法の端壁５（第３図）を作製した。For comparison, an end wall 5 (FIG. 3) having the following dimensions was prepared from the same aluminum alloy plate.
中央パネル８の直径52mm、外側側壁部6bの傾斜角δが
14度、底壁部6cの内側曲率半径r4が0.5mm、環状溝６の
最小肉厚部の厚さ0.24mm、その他の寸法は端壁10と同
じ。The diameter of the central panel 8 is 52 mm, and the inclination angle δ of the outer side wall 6 b is
14 degrees, the inner radius of curvature r4 of the bottom wall portion 6c is 0.5 mm, the thickness of the minimum thickness portion of the annular groove 6 is 0.24 mm, and other dimensions are the same as those of the end wall 10.
これらの端壁10、１、５について耐圧強度（各環状溝
がバックリングを起こす最小内圧）を試験した結果を第
１表に示す。Table 1 shows the results of tests on the pressure resistance (minimum internal pressure at which each annular groove causes buckling) for these end walls 10, 1, and 5.
缶蓋および缶底を缶胴に２重巻締した後、缶蓋の中央
に孔をあけて加圧エアを送入して、バックリングを起こ
す最小圧力を読む。 After double-tightening the can lid and the can bottom to the can body, make a hole in the center of the can lid and feed pressurized air to read the minimum pressure that causes buckling.
さらに比較のため、外側垂直壁13cの高さh2を0.3mm
（高さh1は1.05mm）とした点以外は、端壁10と同様な端
壁を作製し、前記と同様にして耐圧強度を試験した所、
耐圧強度は6.7kgf/cm2であった。For further comparison, the height h2 of the outer vertical wall 13c is 0.3 mm.
(The height h1 was 1.05 mm), except that an end wall similar to the end wall 10 was prepared, and the pressure resistance was tested in the same manner as described above.
The pressure resistance was 6.7 kgf / cm 2 .
（２） 次に板厚0.260mm、0.270mm、0.280mmの、前記
と同じ種類のアルミニウム合金板について、上記と同じ
寸法の端壁１および５を作製して、耐圧強度を試験した
結果を第２表に示す。(2) Next, with respect to aluminum alloy plates of the same type having the plate thicknesses of 0.260 mm, 0.270 mm, and 0.280 mm, end walls 1 and 5 having the same dimensions as those described above were produced, and the results of the pressure resistance test were described. The results are shown in Table 2.
これより端壁１および５の場合はそれぞれ、耐圧強度
7kgf/cm2を得るのに必要な板厚は0.275mmおよび0.260mm
であることが判明した。 Thus, in the case of the end walls 1 and 5, the compressive strength is
The board thickness required to obtain 7kgf / cm 2 is 0.275mm and 0.260mm
Turned out to be.
（３） 板厚0.285mmのアルミニュウム合金板（A5182P
H19）よりなる次の寸法の端壁10（第１図）を作製し
た。(3) Aluminum alloy plate with a thickness of 0.285mm (A5182P
H19) having the following dimensions was manufactured (FIG. 1).
全高が6.9mm、カール部17の直径が64.7mm、中央パネ
ル11の直径が52mm、曲率部12の曲率半径r2が0.8mm、中
央パネル11の深さＨが2.3mm、底壁部13bの内側曲率半径
r1が0.5mm、底端13b1より外側垂直壁上端13c1までの高
さh1が1.3mm、外側垂直壁13cの高さh2が0.5mm、最小肉
厚部（曲率部12の部分）の厚さが0.28mm。The total height is 6.9mm, the diameter of the curled portion 17 is 64.7mm, the diameter of the central panel 11 is 52mm, the radius of curvature r2 of the curvature portion 12 is 0.8mm, the depth H of the central panel 11 is 2.3mm, and the inside of the bottom wall portion 13b curvature radius
r1 is 0.5mm, height h1 from the bottom end 13b1 to the outer vertical wall upper end 13c1 is 1.3mm, height h2 of the outer vertical wall 13c is 0.5mm, and the thickness of the minimum thickness part (curvature part 12) is 0.28mm.
比較のため同じアルミニュウム合金板より、チャック
ウオールが２段截頭逆円錐形部よりなる点を除いては上
記端壁10と同様の端壁10′を作製した。この場合下段截
頭逆円錐形部（外側垂直壁13cに接続する部分）の傾斜
角は22度で長さは1.3mm、上段截頭逆円錐形部の傾斜角
は10度であった。For comparison, an end wall 10 'similar to the end wall 10 was prepared from the same aluminum alloy plate except that the chuck wall was formed of a two-step truncated inverted conical portion. In this case, the inclination angle of the lower truncated inverted conical portion (the portion connected to the outer vertical wall 13c) was 22 degrees and the length was 1.3 mm, and the inclination angle of the upper truncated inverted conical portion was 10 degrees.
端壁10の耐圧強度は8.21kgf/cm2であり、端壁10′の
耐圧強度は7.69kgf/cm2であった。The pressure resistance of the end wall 10 was 8.21 kgf / cm 2 , and the pressure resistance of the end wall 10 ′ was 7.69 kgf / cm 2 .
（考案の効果） 本考案の端壁は、比較的板厚が薄くても耐バックリン
グ性に優れているという効果を奏する。さらに本考案の
端壁は、缶胴に２重巻締する際、スリップに基づく巻締
不良が生じ難く、また傷が付き難く、塗料粉や金属粉が
生じ難いという利点を有する。(Effect of the Invention) The end wall of the present invention has an effect of being excellent in buckling resistance even if the plate thickness is relatively thin. Furthermore, the end wall according to the present invention has the advantage that when double winding is performed on the can body, poor tightening due to slip is unlikely to occur, scratches are less likely to occur, and paint powder and metal powder are less likely to occur.
第１図は本考案の実施例である端壁の要部縦断面図、第
２図および第３図はそれぞれ、第１および第２の比較例
である端壁の要部縦断面図、第４図、第５図は第１図の
端壁を製造する工程を示す縦断面図である。 10……端壁、11……中央パネル、12……曲率部、13……
強化環状溝、13a……内側垂直壁、13b……底壁部、13c
……外側垂直壁、14……チャックウオール。FIG. 1 is a longitudinal sectional view of an essential part of an end wall according to an embodiment of the present invention, and FIGS. 2 and 3 are longitudinal sectional views of an essential part of an end wall according to first and second comparative examples, respectively. 4 and 5 are longitudinal sectional views showing steps of manufacturing the end wall shown in FIG. 10 ... end wall, 11 ... central panel, 12 ... curvature section, 13 ...
Reinforced annular groove, 13a …… Internal vertical wall, 13b …… Bottom wall, 13c
…… Outside vertical wall, 14 …… Chuck wall.
Claims (1)
を介して接続する、内側垂直壁、断面半円形の底壁部お
よび外側垂直壁よりなる強化環状溝、および外側垂直壁
の上端に接続する截頭逆円錐形のチャックウオールを備
え、外側垂直壁の高さ（h2）が、底壁部の内側曲率半径
（r1）より大きく、かつ中央パネルの深さ（Ｈ）から底
壁部の内側曲率半径（r1）を引いた値（Ｈ−r1）より小
さいことを特徴とする耐圧容器用端壁。1. A center panel, an inner vertical wall connected to a peripheral portion of the center panel via a curvature portion, a reinforced annular groove formed of a bottom wall portion and an outer vertical wall portion having a semicircular cross section, and an upper end of the outer vertical wall. The height of the outer vertical wall (h2) is greater than the inner radius of curvature (r1) of the bottom wall, and the depth of the center panel is from the depth (H) of the bottom panel. Characterized by being smaller than the value (H-r1) obtained by subtracting the inside radius of curvature (r1) of the pressure vessel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989040714U JP2544222Y2 (en) | 1989-04-06 | 1989-04-06 | End wall for pressure vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989040714U JP2544222Y2 (en) | 1989-04-06 | 1989-04-06 | End wall for pressure vessel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02131931U JPH02131931U (en) | 1990-11-01 |
| JP2544222Y2 true JP2544222Y2 (en) | 1997-08-13 |
Family
ID=31550741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989040714U Expired - Lifetime JP2544222Y2 (en) | 1989-04-06 | 1989-04-06 | End wall for pressure vessel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2544222Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011102066A1 (en) * | 2010-02-17 | 2011-08-25 | 東洋製罐株式会社 | Can lid |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8490825B2 (en) | 1999-12-08 | 2013-07-23 | Metal Container Corporation | Can lid closure and method of joining a can lid closure to a can body |
| US7380684B2 (en) | 1999-12-08 | 2008-06-03 | Metal Container Corporation | Can lid closure |
| JP4578620B2 (en) * | 2000-05-18 | 2010-11-10 | 大和製罐株式会社 | Method for manufacturing easy-to-open can lid and easy-to-open can lid |
| JP4666330B2 (en) * | 2001-04-19 | 2011-04-06 | 大和製罐株式会社 | Can lid for positive pressure can |
| EP1813540A1 (en) * | 2006-01-30 | 2007-08-01 | Impress Group B.V. | Can end for a can and such can |
| JP6801718B2 (en) * | 2016-09-28 | 2020-12-16 | 日本製鉄株式会社 | Can body, can body manufacturing method and can body manufacturing equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4715208A (en) * | 1986-10-30 | 1987-12-29 | Redicon Corporation | Method and apparatus for forming end panels for containers |
-
1989
- 1989-04-06 JP JP1989040714U patent/JP2544222Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011102066A1 (en) * | 2010-02-17 | 2011-08-25 | 東洋製罐株式会社 | Can lid |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02131931U (en) | 1990-11-01 |
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