JPH0439501U - - Google Patents
Info
- Publication number
- JPH0439501U JPH0439501U JP7656190U JP7656190U JPH0439501U JP H0439501 U JPH0439501 U JP H0439501U JP 7656190 U JP7656190 U JP 7656190U JP 7656190 U JP7656190 U JP 7656190U JP H0439501 U JPH0439501 U JP H0439501U
- Authority
- JP
- Japan
- Prior art keywords
- tip
- plunger
- bar
- rear end
- plug
- 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.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims 7
- 230000037431 insertion Effects 0.000 claims 3
- 238000003780 insertion Methods 0.000 claims 3
- 238000004519 manufacturing process Methods 0.000 claims 2
- 230000002093 peripheral effect Effects 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
Landscapes
- Forging (AREA)
- Pipe Accessories (AREA)
Description
第１図は本考案のプラグバーの実施例を示す側
面図、第２図は第１図のＡ−Ａ矢視断面図、第３
図はプラグバーの動作を示す部分断面図である。
１……バー、３……先端金物、４……プラグ、
４ａ……凹み、６……後端金物、７……貫通長孔
、８……圧力導入口、９……中空部、１１……鋼
球、１２……プランジヤ、１３……空隙、１４…
…挿通孔、１５……孔部、１７……スリーブ、１
８……圧縮コイルバネ（弾性部材）、１９……ス
ライドキー、２０……リング。
Fig. 1 is a side view showing an embodiment of the plug bar of the present invention, Fig. 2 is a sectional view taken along the line A-A in Fig. 1, and Fig.
The figure is a partial sectional view showing the operation of the plug bar. 1... Bar, 3... Tip hardware, 4... Plug,
4a... Recess, 6... Rear end hardware, 7... Long through hole, 8... Pressure introduction port, 9... Hollow part, 11... Steel ball, 12... Plunger, 13... Gap, 14...
...Through hole, 15... Hole, 17... Sleeve, 1
8... Compression coil spring (elastic member), 19... Slide key, 20... Ring.
Claims (1)
ジ結合される先端金物と、この先端金物の先端に
着脱可能に装着されるプラグと、前記バーの後端
部にネジ結合される後端金物とからなる継目無鋼
管製造用プラグバーであつて、前記先端金物は途
中で段差のある中空部を有し、この中空部の内周
面には外周面に段差を有しかつその中心部に前記
バーの中空部と同軸とされる挿通孔を穿設したプ
ランジヤが摺動可能で水蜜に嵌合され、このプラ
ンジヤの突出した先端部にはその先端部に設けら
れた通し孔に出没可能とされる鋼球が前記プラグ
の内周面に形成された凹みに係合されることによ
り前記プラグが着脱可能に外嵌され、また前記プ
ランジヤの後端側外周面には切欠き部が設けられ
、この切欠き部と前記先端金物の後端部に固定さ
れ内嵌されるスリーブとの間に弾性部材が前記プ
ランジヤを付勢可能に介装され、一方、前記先端
金物の段差部と前記プランジヤの段差部とで空隙
が画成され、この空隙には前記プランジヤの挿通
孔が孔部を介して接続され、前記後端金物には前
記挿通孔に連結する貫通長孔と圧力導入口を穿設
されたことを特徴とする継目無鋼管製造用プラグ
バー。 A hollow bar, a metal tip screwed to the tip of the bar, a plug detachably attached to the tip of the metal tip, and a rear end screwed to the rear end of the bar. A plug bar for manufacturing seamless steel pipes consisting of a metal fitting, the tip metal fitting having a hollow part with a step in the middle, the inner circumferential surface of this hollow part having a step on the outer circumferential surface, and a central part thereof. A plunger, which has an insertion hole coaxial with the hollow part of the bar, is slidable and fitted into the water bottle, and the protruding tip of the plunger can be inserted into and retracted from the hole provided in the tip. The plug is removably fitted by engaging a steel ball with a recess formed on the inner peripheral surface of the plug, and a notch is provided on the outer peripheral surface of the rear end of the plunger. An elastic member is interposed between the notch and a sleeve fixed to and fitted into the rear end of the metal tip so as to bias the plunger, while an elastic member is provided between the step part of the metal tip and the sleeve. A gap is defined by the stepped portion of the plunger, and the insertion hole of the plunger is connected to this gap via the hole, and the rear end metal fitting has a long through hole connected to the insertion hole and a pressure introduction port. A plug bar for manufacturing seamless steel pipes characterized by a perforated hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990076561U JPH0723041Y2 (en) | 1990-07-20 | 1990-07-20 | Plug bar for seamless steel pipe manufacturing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990076561U JPH0723041Y2 (en) | 1990-07-20 | 1990-07-20 | Plug bar for seamless steel pipe manufacturing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0439501U true JPH0439501U (en) | 1992-04-03 |
| JPH0723041Y2 JPH0723041Y2 (en) | 1995-05-31 |
Family
ID=31618144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990076561U Expired - Lifetime JPH0723041Y2 (en) | 1990-07-20 | 1990-07-20 | Plug bar for seamless steel pipe manufacturing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0723041Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58179901U (en) * | 1982-05-28 | 1983-12-01 | 住友金属工業株式会社 | Mounting structure of core circulation type perforation plug |
-
1990
- 1990-07-20 JP JP1990076561U patent/JPH0723041Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58179901U (en) * | 1982-05-28 | 1983-12-01 | 住友金属工業株式会社 | Mounting structure of core circulation type perforation plug |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0723041Y2 (en) | 1995-05-31 |