JPH039234U - - Google Patents
Info
- Publication number
- JPH039234U JPH039234U JP6816289U JP6816289U JPH039234U JP H039234 U JPH039234 U JP H039234U JP 6816289 U JP6816289 U JP 6816289U JP 6816289 U JP6816289 U JP 6816289U JP H039234 U JPH039234 U JP H039234U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- tube
- pipe
- expansion tool
- liquid bag
- 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
- 239000007788 liquid Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims 1
- 239000007779 soft material Substances 0.000 claims 1
Landscapes
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Pipe Accessories (AREA)
Description
第１図は、本考案の１実施例液圧拡管工具の加
圧前の状態を示す断面図。第２図は、同じく加圧
後の状態を示す断面図を示す。第３図及び第４図
は従来の液圧拡管工具の加圧前及び加圧後の状態
を示す断面図である。
１……管、２……拡管マンドレル、３……液圧
導入口、４……ストツパ、５……液袋、６……拡
管された管、８……可動性ストツパ、９……シー
ル。
FIG. 1 is a sectional view showing a state before pressurization of a hydraulic pipe expansion tool according to an embodiment of the present invention. FIG. 2 is a cross-sectional view showing the state after pressurization. FIGS. 3 and 4 are cross-sectional views showing the conventional hydraulic pipe expansion tool before and after pressurization. 1... Pipe, 2... Tube expansion mandrel, 3... Hydraulic pressure inlet, 4... Stopper, 5... Liquid bag, 6... Expanded pipe, 8... Movable stopper, 9... Seal.
Claims (1)
圧を受けて拡がる液袋を用いる液圧拡管工具にお
いて、前記液袋の両端近傍に、液圧により拡管す
る管の内表面に密着するゴム等の軟質材料からな
る可動性ストツパーを配設したことを特徴とする
液圧拡管工具。 In a hydraulic tube expansion tool that uses a liquid bag that expands in response to the pressure of liquid flowing through a tube expansion mandrel that is inserted into a pipe, there is a rubber or other material near both ends of the liquid bag that is in close contact with the inner surface of the tube that is being expanded by hydraulic pressure. A hydraulic pipe expansion tool characterized by having a movable stopper made of a soft material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6816289U JPH039234U (en) | 1989-06-13 | 1989-06-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6816289U JPH039234U (en) | 1989-06-13 | 1989-06-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH039234U true JPH039234U (en) | 1991-01-29 |
Family
ID=31602362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6816289U Pending JPH039234U (en) | 1989-06-13 | 1989-06-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH039234U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016527084A (en) * | 2013-08-01 | 2016-09-08 | エコール・サントラル・ドゥ・ナント | Electrohydraulic molding machine for plastic deformation of the projected part of the wall of the workpiece to be molded |
-
1989
- 1989-06-13 JP JP6816289U patent/JPH039234U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016527084A (en) * | 2013-08-01 | 2016-09-08 | エコール・サントラル・ドゥ・ナント | Electrohydraulic molding machine for plastic deformation of the projected part of the wall of the workpiece to be molded |