JPH044997U - - Google Patents
Info
- Publication number
- JPH044997U JPH044997U JP4556890U JP4556890U JPH044997U JP H044997 U JPH044997 U JP H044997U JP 4556890 U JP4556890 U JP 4556890U JP 4556890 U JP4556890 U JP 4556890U JP H044997 U JPH044997 U JP H044997U
- Authority
- JP
- Japan
- Prior art keywords
- tail plate
- press ring
- ring
- contracted
- jack
- 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
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Description
第１図：本考案のシール構造全体の軸方向断面
図、第２図：本考案のシール構造全体の周方向断
面図、第３図：要部の拡大説明図。
FIG. 1: An axial cross-sectional view of the entire seal structure of the present invention, FIG. 2: A circumferential cross-sectional view of the entire seal structure of the present invention, and FIG. 3: An enlarged explanatory view of the main parts.
Claims (1)
したプレスリングのシール構造において、 弾性及び止水性を有し、かつ断面がＵ字形にな
るように曲折させた環体を、 その曲折部がテールプレートの内周面に接触す
るように配置し、 前記環体の切羽と反対側の面は、テールプレー
トの内側に周方向に配置したプレスリングに取り
付け、 また環体の切羽側の面には、トンネルの軸方向
に伸縮可能なジヤツキの先端を連結し、 前記ジヤツキを伸縮させることにより、環体の
外径を拡縮できるよう構成した、 シールドマシンのプレスリングのシール構造。[Claim for Utility Model Registration] In the sealing structure of a press ring placed inside the tail plate of a shield machine, a ring body that has elasticity and water-stopping properties and is bent so that its cross section is U-shaped. The bent portion is arranged so as to contact the inner peripheral surface of the tail plate, and the surface of the annular body opposite to the face is attached to a press ring disposed circumferentially inside the tail plate, and the face side of the annular body is attached to a press ring arranged circumferentially inside the tail plate. A seal structure for a press ring of a shield machine, in which the tip of a jack that can be expanded and contracted in the axial direction of the tunnel is connected to the surface of the tunnel, and the outer diameter of the ring body can be expanded and contracted by expanding and contracting the jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4556890U JP2522249Y2 (en) | 1990-04-27 | 1990-04-27 | Press ring seal structure of shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4556890U JP2522249Y2 (en) | 1990-04-27 | 1990-04-27 | Press ring seal structure of shield machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH044997U true JPH044997U (en) | 1992-01-17 |
| JP2522249Y2 JP2522249Y2 (en) | 1997-01-08 |
Family
ID=31559866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4556890U Expired - Lifetime JP2522249Y2 (en) | 1990-04-27 | 1990-04-27 | Press ring seal structure of shield machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2522249Y2 (en) |
-
1990
- 1990-04-27 JP JP4556890U patent/JP2522249Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2522249Y2 (en) | 1997-01-08 |