JPS626926U - - Google Patents
Info
- Publication number
- JPS626926U JPS626926U JP9683485U JP9683485U JPS626926U JP S626926 U JPS626926 U JP S626926U JP 9683485 U JP9683485 U JP 9683485U JP 9683485 U JP9683485 U JP 9683485U JP S626926 U JPS626926 U JP S626926U
- Authority
- JP
- Japan
- Prior art keywords
- mandrel
- pipe expanding
- tip
- opening
- mandrel body
- 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
- 239000010687 lubricating oil Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Description
第１図は本考案に係る拡管用マンドレルの一実
施例を示す一部省略断面図。第２図乃至第４図は
使用状態を示し、第２図はマンドレルを拡管装置
に装着した状態の一部断面要部正面図、第３図は
拡管状態を示す要部断面図、第４図は説明図。第
５図は他実施例を示す一部省略断面図。第６図は
従来例を示す要部断面図。
１……マンドレル本体、７……連通孔、７ａ…
…一端開口部、７ｂ……他端開口部、１０，１０
ａ……エア抜き用孔。
FIG. 1 is a partially omitted sectional view showing an embodiment of a tube expansion mandrel according to the present invention. Figures 2 to 4 show the state of use, Figure 2 is a partially sectional front view of the main part with the mandrel attached to the tube expansion device, Figure 3 is a sectional view of the main part showing the tube expansion state, and Figure 4 is an explanatory diagram. FIG. 5 is a partially omitted sectional view showing another embodiment. FIG. 6 is a sectional view of main parts showing a conventional example. 1...Mandrel body, 7...Communication hole, 7a...
...One end opening, 7b...Other end opening, 10,10
a...Air vent hole.
Claims (1)
に有し且つ他端開口部７ｂをマンドレル本体１の
後部に有する連通孔７を該マンドレル本体１内に
設けて、該連通孔７の後部側の開口部７ｂより給
油される潤滑油がマンドレル本体１の先端部側の
開口部７ａから排出されるべく構成してなること
を特徴とする拡管用マンドレル。 ２ 前記マンドレル本体１が膨出部２を有する拡
管ビレツト３とロツド４との両者を連結して構成
されてなる実用新案登録請求の範囲第１項記載の
拡管用マンドレル。 ３ 前記マンドレル本体１がその先端部にエア抜
き用の孔１０を穿設してなる実用新案登録請求の
範囲第１項記載の拡管用マンドレル。[Claims for Utility Model Registration] 1. A communication hole 7 having one end opening 7a at the tip of the mandrel body 1 and the other end opening 7b at the rear of the mandrel body 1 is provided in the mandrel body 1, A pipe expanding mandrel characterized in that lubricating oil supplied from an opening 7b on the rear side of the communication hole 7 is discharged from an opening 7a on the tip side of the mandrel body 1. 2. The pipe expanding mandrel according to claim 1, wherein the mandrel body 1 is constructed by connecting both a pipe expanding billet 3 having a bulging portion 2 and a rod 4. 3. The pipe expanding mandrel according to claim 1, wherein the mandrel main body 1 has an air vent hole 10 at its tip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9683485U JPS626926U (en) | 1985-06-25 | 1985-06-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9683485U JPS626926U (en) | 1985-06-25 | 1985-06-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS626926U true JPS626926U (en) | 1987-01-16 |
Family
ID=30963053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9683485U Pending JPS626926U (en) | 1985-06-25 | 1985-06-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS626926U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012027992A (en) * | 2010-07-27 | 2012-02-09 | Nhk Spring Co Ltd | Method for assembling head assembly, rod-like jig and ball for caulking |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5763230A (en) * | 1980-10-03 | 1982-04-16 | Nippon Petrochem Co Ltd | Extrusion foaming equipment |
-
1985
- 1985-06-25 JP JP9683485U patent/JPS626926U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5763230A (en) * | 1980-10-03 | 1982-04-16 | Nippon Petrochem Co Ltd | Extrusion foaming equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012027992A (en) * | 2010-07-27 | 2012-02-09 | Nhk Spring Co Ltd | Method for assembling head assembly, rod-like jig and ball for caulking |
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