JPH0211892U - - Google Patents

Info

Publication number
JPH0211892U
JPH0211892U JP8801688U JP8801688U JPH0211892U JP H0211892 U JPH0211892 U JP H0211892U JP 8801688 U JP8801688 U JP 8801688U JP 8801688 U JP8801688 U JP 8801688U JP H0211892 U JPH0211892 U JP H0211892U
Authority
JP
Japan
Prior art keywords
center
folding
frame
rear frame
shield
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
Application number
JP8801688U
Other languages
Japanese (ja)
Other versions
JPH0738463Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1988088016U priority Critical patent/JPH0738463Y2/en
Publication of JPH0211892U publication Critical patent/JPH0211892U/ja
Application granted granted Critical
Publication of JPH0738463Y2 publication Critical patent/JPH0738463Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の一実施例を示す中折れシール
ド断面図、第２図は中折れ用ジヤツキの取付け構
造を示す図、第３図は第１図のＡ―Ａ線断面図、
第４図は中折れ用ジヤツキの他の取付け構造を示
す図、第５図乃至第７図は従来の中折れ用ジヤツ
キの取付け構造をそれぞれ示す図である。 図中、１はシールドフレーム、２は前部フレー
ム、３は後部フレーム、８は推進用ジヤツキ、１
３は中折れ用ジヤツキ、１４は球面軸受、１５は
ブラケツトである。 FIG. 1 is a sectional view of a folded shield showing an embodiment of the present invention, FIG. 2 is a diagram showing the mounting structure of a jack for folding, and FIG. 3 is a sectional view taken along line AA in FIG. 1.
FIG. 4 is a diagram showing another mounting structure for a jack for center-folding, and FIGS. 5 to 7 are diagrams showing the mounting structure for a conventional jack for center-folding. In the figure, 1 is a shield frame, 2 is a front frame, 3 is a rear frame, 8 is a propulsion jack, 1
3 is a jack for bending, 14 is a spherical bearing, and 15 is a bracket.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 筒体状のシールドフレームがその軸方向ほぼ中
間部で前部フレームと後部フレームとに分割され
、後部フレームの内周にその周方向に沿つて適宜
間隔で推進用ジヤツキを配設し、これら推進用ジ
ヤツキ間に前部フレームと後部フレームとを屈曲
自在に連結する中折れ用ジヤツキを配設した中折
れシールドにおいて、上記中折れ用ジヤツキの両
端部に球面軸受を有するブラケツトを設け、これ
らブラケツトを上記前部フレームと後部フレーム
とに固定したことを特徴とする中折れシールド。 The cylindrical shield frame is divided into a front frame and a rear frame at approximately the midpoint in the axial direction, and propulsion jacks are arranged on the inner periphery of the rear frame at appropriate intervals along the circumferential direction. In a center-folding shield in which a center-folding jack for bendably connecting a front frame and a rear frame is arranged between the center-folding jacks, brackets having spherical bearings are provided at both ends of the center-folding jack, and these brackets are connected to each other. A center-folding shield characterized in that it is fixed to the front frame and the rear frame.
JP1988088016U 1988-07-04 1988-07-04 Breakable shield Expired - Lifetime JPH0738463Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988088016U JPH0738463Y2 (en) 1988-07-04 1988-07-04 Breakable shield

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988088016U JPH0738463Y2 (en) 1988-07-04 1988-07-04 Breakable shield

Publications (2)

Publication Number Publication Date
JPH0211892U true JPH0211892U (en) 1990-01-25
JPH0738463Y2 JPH0738463Y2 (en) 1995-09-06

Family

ID=31312600

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988088016U Expired - Lifetime JPH0738463Y2 (en) 1988-07-04 1988-07-04 Breakable shield

Country Status (1)

Country Link
JP (1) JPH0738463Y2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011145396A1 (en) * 2010-05-17 2011-11-24 太閤テックス株式会社 Tunneling machine
JP2011241578A (en) * 2010-05-17 2011-12-01 Taiko Corp Boring machine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59167891U (en) * 1983-04-26 1984-11-10 石川島播磨重工業株式会社 Center folding type shield excavator
JPS6126795U (en) * 1984-07-25 1986-02-18 東京電力株式会社 Support device for shield jack in shield excavator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59167891U (en) * 1983-04-26 1984-11-10 石川島播磨重工業株式会社 Center folding type shield excavator
JPS6126795U (en) * 1984-07-25 1986-02-18 東京電力株式会社 Support device for shield jack in shield excavator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011145396A1 (en) * 2010-05-17 2011-11-24 太閤テックス株式会社 Tunneling machine
JP2011241577A (en) * 2010-05-17 2011-12-01 Taiko Corp Boring machine
JP2011241578A (en) * 2010-05-17 2011-12-01 Taiko Corp Boring machine

Also Published As

Publication number Publication date
JPH0738463Y2 (en) 1995-09-06

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