JPH0386193U - - Google Patents
Info
- Publication number
- JPH0386193U JPH0386193U JP14698089U JP14698089U JPH0386193U JP H0386193 U JPH0386193 U JP H0386193U JP 14698089 U JP14698089 U JP 14698089U JP 14698089 U JP14698089 U JP 14698089U JP H0386193 U JPH0386193 U JP H0386193U
- Authority
- JP
- Japan
- Prior art keywords
- shell
- shield
- storage groove
- circumferential surface
- sectional shape
- 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
- 238000007789 sealing Methods 0.000 claims description 4
- 230000005641 tunneling Effects 0.000 claims description 2
- 239000003566 sealing material Substances 0.000 claims 2
- 230000000452 restraining effect Effects 0.000 claims 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Description
第１図は本考案による中折れ部シール装置の一
実施例の側断面図、第２図は上記実施例の中折れ
時の状態を示す側断面図、第３図、第４図は本考
案による中折れ部シール装置の他の実施例を示す
側断面図、第５図はＯリングを用いた中折れ部シ
ール装置の従来例の側断面図、第６図は本考案を
適用した２連シールド掘進機の側断面図、第７図
は第６図のＢ矢視図、第８図は第６図のＣ−Ｃ断
面図である。
１……シールド本体、１ａ……擬似円形部、１
ｂ……逆円弧部、２……前胴、２ａ……前胴の後
端部、３……後胴、３ａ……後胴の前端部、１１
……中空Ｏリング、１２……あり溝形のシール収
納溝、１３……つば付中空Ｏリング、１４……段
付のシール収納溝、１５……つば付中空Ｏリング
、１６……シール収納溝、１７……ねじ穴、１８
……ボルト、１９……シール押さえ。
Fig. 1 is a side sectional view of an embodiment of the folded part sealing device according to the present invention, Fig. 2 is a side sectional view showing the state of the above embodiment when folded in the middle, and Figs. 3 and 4 are the invention according to the present invention. Fig. 5 is a side sectional view of a conventional example of a folded part sealing device using an O-ring, and Fig. 6 is a side sectional view showing another embodiment of the folded part sealing device according to 7 is a side sectional view of the shield tunneling machine, FIG. 7 is a view taken along arrow B in FIG. 6, and FIG. 8 is a sectional view taken along line C-C in FIG. 6. 1... Shield body, 1a... Pseudo circular part, 1
b... Reverse arc portion, 2... Front body, 2a... Rear end of front body, 3... Rear body, 3a... Front end of rear body, 11
...Hollow O-ring, 12...Dovetail seal storage groove, 13...Hollow O-ring with flange, 14...Stepped seal storage groove, 15...Hollow O-ring with flange, 16...Seal storage Groove, 17...Screw hole, 18
...Bolt, 19... Seal holder.
Claims (1)
接続する逆円弧部とからなる断面形状を持つシー
ルド本体を前胴と後胴とに分割し、前胴の後端部
に後胴の縮径された前端部をすきまを持たせては
め込み、中折れ部を形成した多連シールド掘進機
において、後胴の前端部外周面に設けたシール収
納溝にほぼ円形の断面形状を持つ環状に連続した
シール材を前胴の後端部内周面の少なくとも１部
と摺動接触するように収納し、かつ該シール材を
少なくとも前記逆円弧部でシール収納溝内に拘束
する手段を設けたことを特徴とする多連シールド
掘進機の中折れ部シール装置。 The shield main body, which has a cross-sectional shape consisting of a plurality of pseudo-circular parts and an inverted circular arc part that connects the adjacent pseudo-circular parts, is divided into a front shell and a rear shell, and the diameter reduction of the rear shell is attached to the rear end of the front shell. In a multiple shield excavator in which the front end of the shield is fitted with a gap to form a center fold, a continuous ring with an approximately circular cross-sectional shape is inserted into the seal storage groove provided on the outer circumferential surface of the front end of the rear body. A means is provided for storing the sealing material so as to be in sliding contact with at least a portion of the inner circumferential surface of the rear end of the front body, and for restraining the sealing material in the seal storage groove at least at the inverted circular arc portion. A sealing device for the folded part of a multiple shield tunneling machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989146980U JPH089272Y2 (en) | 1989-12-22 | 1989-12-22 | Sealing device for middle broken part of multiple shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989146980U JPH089272Y2 (en) | 1989-12-22 | 1989-12-22 | Sealing device for middle broken part of multiple shield machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0386193U true JPH0386193U (en) | 1991-08-30 |
| JPH089272Y2 JPH089272Y2 (en) | 1996-03-13 |
Family
ID=31693514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989146980U Expired - Lifetime JPH089272Y2 (en) | 1989-12-22 | 1989-12-22 | Sealing device for middle broken part of multiple shield machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH089272Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6277293U (en) * | 1986-11-07 | 1987-05-18 | ||
| JPS63308195A (en) * | 1987-06-08 | 1988-12-15 | 大豊建設株式会社 | Shielding excavating method and shielding machine |
-
1989
- 1989-12-22 JP JP1989146980U patent/JPH089272Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6277293U (en) * | 1986-11-07 | 1987-05-18 | ||
| JPS63308195A (en) * | 1987-06-08 | 1988-12-15 | 大豊建設株式会社 | Shielding excavating method and shielding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH089272Y2 (en) | 1996-03-13 |