JPS6246256B2 - - Google Patents
Info
- Publication number
- JPS6246256B2 JPS6246256B2 JP16405080A JP16405080A JPS6246256B2 JP S6246256 B2 JPS6246256 B2 JP S6246256B2 JP 16405080 A JP16405080 A JP 16405080A JP 16405080 A JP16405080 A JP 16405080A JP S6246256 B2 JPS6246256 B2 JP S6246256B2
- Authority
- JP
- Japan
- Prior art keywords
- mouth
- opening
- manufacturing
- standing upper
- top plate
- 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
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 description 6
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 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
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000005028 tinplate Substances 0.000 description 1
Description
【発明の詳細な説明】
本発明は石油缶・塗料缶・飲料水缶等の缶天板
等に缶口を製作する方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing can tops on can tops of oil cans, paint cans, drinking water cans, and the like.
従来の缶口の製作方法を第１図および第２図に
より説明する。ブリキ製缶天板１は所定位置に円
筒状の開口立上部１ａを形成した後、その開口立
上部１ａを外側から下方へと円弧状にカールして
円弧部１ｂを形成して缶口としている。 A conventional method for manufacturing a can opening will be explained with reference to FIGS. 1 and 2. The tin can top plate 1 has a cylindrical opening upright part 1a formed at a predetermined position, and then curls the open upright part 1a downward from the outside into an arc shape to form an arcuate part 1b, which serves as a can mouth. .
かかる缶口の製作方法によれば円弧部１ｂが１
重のために非常に弱いものであつた。 According to this method of manufacturing a can mouth, the arc portion 1b is 1
It was very weak due to its weight.
本発明はかかる欠陥を解消せんとしてなされた
ものである。 The present invention has been made in an attempt to eliminate such deficiencies.
以下本発明の詳細を第３図〜第６図に示す一実
施例により説明する。ブリキ製缶天板２はプレス
にて第３図の如く所定位置に円筒状の開口立上部
２ａを形成する。この天板２はブリキ製の他に表
面処理鋼板製やアルミニユーム製であつても良
い。この開口立上部２ａは１重であり、後述する
２重の開口立上部２を形成するに必要な径と高さ
に設定する。次に、この開口立上部２ａをプレス
にて第４図の如く外側に潰して天板２に重ねて２
重部分２ｂとする。この２重部分２ｂをプレスし
て第５図の如く円筒状の開口立上部２ｃを形成
し、しかる後この２重の開口立上部２ｃをプレス
して第６図の如く外側から下方へと円弧状にカー
ルして円弧部２ｄを形成して缶口とする。この缶
口にはポリ栓等が嵌着されるものである。 The details of the present invention will be explained below with reference to an embodiment shown in FIGS. 3 to 6. The top plate 2 of the tin can is pressed to form a cylindrical open upper part 2a at a predetermined position as shown in FIG. The top plate 2 may be made of surface-treated steel plate or aluminum instead of tin plate. This opening standing upper part 2a has a single layer, and is set to a diameter and height necessary to form a double opening standing upper part 2, which will be described later. Next, this open standing upper part 2a is crushed outward with a press as shown in Fig. 4, and stacked on the top plate 2.
This is the heavy portion 2b. This double part 2b is pressed to form a cylindrical opening standing upper part 2c as shown in FIG. 5, and then this double opening standing upper part 2c is pressed to form a circle from the outside downward as shown in It is curled into an arc shape to form a circular arc portion 2d to form a can mouth. A plastic stopper or the like is fitted into the mouth of the can.
かかる缶口の製作方法によれば円弧部２ｄが２
重になつているので強度が強くなると共に、２重
にするために別部材を用いないので製作が容易で
ある。 According to this manufacturing method of the can opening, the arcuate portion 2d is 2
Since they are overlapped, their strength is increased, and they are easy to manufacture because they do not require separate members to make them double.
又、弾性鉤止片付キヤツプを嵌着する缶口とす
る場合には、第５図の状態から開口立上部２ｃを
プレスして第７図の如く外側から下方へと偏平し
た円弧状にカールして円弧部２ｅを形成し、しか
る後円弧部２ｅの円縁部を立上げて円錐立上部２
ｆを形成して缶口とする。 In addition, when making a can opening into which a cap with an elastic hook is fitted, press the opening upright part 2c from the state shown in Fig. 5 and curl it into a flat arc shape from the outside downwards as shown in Fig. 7. Then, the circular edge portion of the circular arc portion 2e is raised to form the conical raised portion 2.
Form f to form a can opening.
更に、２重の開口立上部２ｃを形成する以前に
第９図に示すような立上げ段部２ｇを形成してお
いてから偏平円弧部２ｈを形成し、しかる後円弧
部部２ｅの円縁部を立上げて円錐立上部２ｉを形
成して缶口とすれば注出口を缶口に装着するのに
便利である。 Furthermore, before forming the double opening standing portion 2c, a rising step portion 2g as shown in FIG. 9 is formed, and then a flat arc portion 2h is formed, and then the circular edge of the circular arc portion 2e is It is convenient to attach the spout to the can mouth by raising the conical part 2i to form a can mouth.
又、缶口の強度を強くする別の実施例を第１１
図〜第１４図により説明する。缶天板３はプレス
にて第１１図の如く所定位置に円筒状の開口立上
部３ａを形成する。次にこの開口立上部３ａの上
端をプレスして第１２図の如く外側から下方へと
小さく円弧状にカールして小円弧部３ｂを形成す
る。しかる後前記開口立上部３ａをプレスして第
１３図の如く外側へ潰して小円弧部３ｂの下端が
天板３に当接するように偏平した円弧部３ｃを形
成する。それから円弧部３ｃの周縁部をプレスに
て第１４図の如く立上げて円錐立上部３ｄを形成
して缶口とする。この方法によれば製作が更に容
易で小径の缶口を得ることができる。 In addition, another example of increasing the strength of the can opening is shown in the 11th
This will be explained with reference to FIGS. The can top plate 3 is pressed to form a cylindrical opening upright part 3a at a predetermined position as shown in FIG. Next, the upper end of this opening standing upper part 3a is pressed and curled downward from the outside into a small arc shape to form a small arc part 3b. Thereafter, the opening standing upper part 3a is pressed and crushed outward as shown in FIG. 13 to form a flattened circular arc part 3c such that the lower end of the small circular arc part 3b comes into contact with the top plate 3. Then, the peripheral edge of the arcuate portion 3c is raised using a press as shown in FIG. 14 to form a conical raised portion 3d to form a can mouth. According to this method, manufacturing is easier and a can mouth with a smaller diameter can be obtained.
第１図・第２図は従来の缶口の製作方法の各工
程の断面図、第３図〜第６図は本発明の缶口の製
作方法の各工程の断面図、第７図・第８図は同缶
口の製作方法の異なる実施例の各工程の断面図、
第９図・第１０図は同缶口の製作方法の更に異な
る実施例の各工程の断面図、第１１図〜第１４図
は同缶口の製作方法の更に異なる実施例の各工程
の断面図である。
２……天板、２ａ……開口立上部、２ｂ……２
重部分、２ｃ……開口立上部、２ｄ……円弧部。
Figures 1 and 2 are cross-sectional views of each step in the conventional can-mouth manufacturing method, Figures 3 to 6 are cross-sectional views of each process in the can-mouth manufacturing method of the present invention, and Figures 7 and 2 are cross-sectional views of each step in the conventional can-mouth manufacturing method. Figure 8 is a cross-sectional view of each process of a different example of the manufacturing method of the same can mouth,
Figures 9 and 10 are cross-sectional views of each step in a further different embodiment of the method for manufacturing the can mouth, and Figures 11 to 14 are cross-sectional views of each step in a further different embodiment of the method for manufacturing the can mouth. It is a diagram. 2...Top plate, 2a...Opening upper part, 2b...2
Heavy portion, 2c...Opening upright part, 2d...Circular arc portion.
Claims (1)
の開口立上部２ａを外側へ潰して２重となし、こ
の２重部分２ｂを更に立上げて開口立上部２ｃを
形成し、しかる後この開口立上部２ｃを更に外側
から下方へと円弧状にカールして円弧部２ｄを形
成したことを特徴とする缶口の製作方法。1. After forming an open standing upper part 2a on the can top plate 2, crush this open standing upper part 2a outward to form a double layer, further raise this double part 2b to form an open standing upper part 2c, and then A method for producing a can mouth characterized in that this opening standing upper part 2c is further curled into an arc shape from the outside downwards to form an arcuate portion 2d.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16405080A JPS5788924A (en) | 1980-11-22 | 1980-11-22 | Method for manufacturing opening of tin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16405080A JPS5788924A (en) | 1980-11-22 | 1980-11-22 | Method for manufacturing opening of tin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5788924A JPS5788924A (en) | 1982-06-03 |
| JPS6246256B2 true JPS6246256B2 (en) | 1987-10-01 |
Family
ID=15785838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16405080A Granted JPS5788924A (en) | 1980-11-22 | 1980-11-22 | Method for manufacturing opening of tin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5788924A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6082238A (en) * | 1983-10-07 | 1985-05-10 | Nippon Alum Mfg Co Ltd:The | Method of forming mouth piece structure |
| JPS62259630A (en) * | 1986-04-28 | 1987-11-12 | Nagashima Hirohisa | Manufacture of metal plate made container port |
-
1980
- 1980-11-22 JP JP16405080A patent/JPS5788924A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5788924A (en) | 1982-06-03 |
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