JPH026153Y2 - - Google Patents

Info

Publication number
JPH026153Y2
JPH026153Y2 JP6688383U JP6688383U JPH026153Y2 JP H026153 Y2 JPH026153 Y2 JP H026153Y2 JP 6688383 U JP6688383 U JP 6688383U JP 6688383 U JP6688383 U JP 6688383U JP H026153 Y2 JPH026153 Y2 JP H026153Y2
Authority
JP
Japan
Prior art keywords
propulsion
tube
propulsion tube
movable plate
inner tube
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.)
Expired
Application number
JP6688383U
Other languages
Japanese (ja)
Other versions
JPS59173759U (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 JP6688383U priority Critical patent/JPS59173759U/en
Publication of JPS59173759U publication Critical patent/JPS59173759U/en
Application granted granted Critical
Publication of JPH026153Y2 publication Critical patent/JPH026153Y2/ja
Granted legal-status Critical Current

Links

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  • Excavating Of Shafts Or Tunnels (AREA)

Description

【考案の詳細な説明】 本考案は推進管の方向修正装置に係るものであ
る。
[Detailed Description of the Invention] The present invention relates to a propulsion tube direction correction device.

第1図及び第2図に示すように鋼管等を地中に
推進させる場合、線形精度を確保するための推進
管の方向修正を、従来第1図に示すように推進管
aの先端部bの形状を利用するか、第2図に示す
ように推進管aを回転することによつて行なつて
いるが、前者においては推進中常時推進管の先端
端面形状の影響を受けて直進性が失なわれ、後者
においては周辺地盤の影響、推進管の剛性不足に
よつて修正不可能の懸念がある。
When propelling a steel pipe or the like underground as shown in Figs. 1 and 2, the direction of the propulsion pipe is conventionally corrected to ensure linear accuracy at the tip end b of the propulsion pipe a as shown in Fig. 1. This is accomplished either by utilizing the shape of the propulsion tube a or by rotating the propulsion tube a as shown in Figure 2, but in the former case, the straightness is constantly affected by the shape of the tip end surface of the propulsion tube during propulsion. In the latter case, there are concerns that it may not be possible to repair it due to the influence of the surrounding ground and lack of rigidity of the propulsion tube.

本考案はこのような欠点を除去するために提案
されたもので、推進管と、同推進管内に回転及び
摺動自在に配設されたスクリユウブレードを有す
る内管と、前記推進管先端部に回動自在に装架さ
れた複数の可動板と、内管の先端部に配設され且
つ前記可動板の1つに選択的に係脱する係合部と
よりなることを特徴とする推進管の方向修正装置
に係るものである。
The present invention was proposed in order to eliminate such drawbacks, and includes a propulsion tube, an inner tube having a screw blade rotatably and slidably disposed within the propulsion tube, and a distal end portion of the propulsion tube. A propulsion device comprising: a plurality of movable plates rotatably mounted on the inner tube; and an engaging portion disposed at the tip of the inner tube and selectively engaging and disengaging from one of the movable plates. This relates to a pipe direction correction device.

本考案は前記のように構成されているので、推
進管が設計線形に対してずれを生起した場合、前
記内管を回転して同内管先端部に配設された係合
部を、推進管に配設された複数の可動板のうち所
要の修正方向に対応する部位に位置する可動板と
同一線上に位置せしめ、しかるのち前記内管を摺
動してその係合部を前記可動板に係合せしめるこ
とによつて同可動板を回動せしめてその方向を変
え、この状態で推進管を推進せしめることによつ
て推進管の方向の修正を行なうものである。
Since the present invention is configured as described above, when the propulsion tube deviates from the designed alignment, the inner tube is rotated and the engaging portion disposed at the tip of the inner tube is rotated. Among the plurality of movable plates disposed on the tube, the movable plate is positioned on the same line as the movable plate located at the part corresponding to the required correction direction, and then the inner tube is slid and the engaging portion is aligned with the movable plate. By engaging with the movable plate, the movable plate is rotated to change its direction, and the propulsion tube is propelled in this state, thereby correcting the direction of the propulsion tube.

このように本考案によれば簡単な構成で通常推
進時の直進性を確保するとともに、時宜に適して
容易に推進管の方向の修正を可能ならしめ、従来
推進工程中常時監視、修正が必要とされた推進管
理を簡易化するとともに、推進能率を向上しうる
ものである。
In this way, the present invention not only ensures straight-line propulsion during normal propulsion with a simple configuration, but also makes it possible to easily correct the direction of the propulsion tube in a timely manner, which conventionally required constant monitoring and correction during the propulsion process. This simplifies the propulsion management and improves propulsion efficiency.

以下本考案を図示の実施例について説明する。 The present invention will be described below with reference to the illustrated embodiments.

1はその後端部に接続された推進フレーム2と
竪孔3内の反力壁4との間に介装された推進ジヤ
ツキ5によつて推進される推進管、6は推進管1
内にそれと同心状に配設されたカツタブレード7
を有する内管で、前記推進フレーム2に取付けら
れた内管用アタツチメント8に装架された内管旋
回モータ9、及び前記アタツチメント8と推進フ
レーム2との間に介装された可動板操作ジヤツキ
10によつて回転並に摺動されるようになつてい
る。
1 is a propulsion tube propelled by a propulsion jack 5 interposed between a propulsion frame 2 connected to its rear end and a reaction wall 4 in a pit 3; 6 is a propulsion tube 1;
A cutter blade 7 is arranged concentrically inside the cutter blade 7.
an inner tube rotating motor 9 mounted on an inner tube attachment 8 attached to the propulsion frame 2; and a movable plate operation jack 10 interposed between the attachment 8 and the propulsion frame 2. It is designed so that it can be rotated and slid by.

なお図中11は推進ベースである。 Note that 11 in the figure is the propulsion base.

前記推進管1の先端刃口部円周上に上下左右
に、同管1より突設されたブラケツト12に可動
板13a,13b,13c,13dがピン14を
介して回動自在に枢支されている。なお前記可動
板は刃状本体13Aと同本体後端より内周側に突
設された取付片13Bとよりなり、同取付片13
Bが前記ブラケツト12に枢着され、常時は本体
13A外周面と推進管11の外周面とが同一面上
に位置している。
Movable plates 13a, 13b, 13c, and 13d are rotatably supported via pins 14 on brackets 12 that protrude from the tube 1 vertically and horizontally on the circumference of the tip end of the propulsion tube 1. ing. The movable plate is made up of a blade-like main body 13A and a mounting piece 13B protruding inward from the rear end of the main body.
B is pivotally attached to the bracket 12, and the outer circumferential surface of the main body 13A and the outer circumferential surface of the propulsion tube 11 are normally located on the same plane.

一方前記内管6の先端部外周面には前記可動板
の取付脚片13Bに係脱する係合部を構成するホ
ーク15が突設されている。
On the other hand, a fork 15 protruding from the outer circumferential surface of the distal end of the inner tube 6 constitutes an engaging portion that engages and disengages from the mounting leg piece 13B of the movable plate.

図示の実施例は前記したように構成されている
ので、推進管11の刃口部円周上に取付けられた
可動板13a,13b,13c,13dは地盤を
推進中に、刃形状の可動板先端形状効果、及び推
進管1と可動板との取合部の小間隙cによつて固
定された状態となり、可動板1全体は直進性を有
する。
Since the illustrated embodiment is constructed as described above, the movable plates 13a, 13b, 13c, and 13d attached to the circumference of the cutting edge portion of the propulsion tube 11 are movable blade-shaped plates while propelling the ground. Due to the tip shape effect and the small gap c between the joint between the propulsion tube 1 and the movable plate, the movable plate 1 as a whole has straight movement.

また直進管1が設計線形に対してずれを生起し
た場合にはその偏位方向をトランシツト等で検知
し、内管6を回動させてホーク15を所要の可動
板位置に合せ、第7図の矢印方向に移動させてホ
ーク15により可動板の方向を変え、この状態で
推進管1を推進させることによつて方向の修正を
行なうものである。
Furthermore, if the straight tube 1 deviates from the designed alignment, the direction of the deviation is detected by a transit or the like, and the inner tube 6 is rotated to align the hawk 15 with the required movable plate position, as shown in FIG. The movable plate is moved in the direction of the arrow, the direction of the movable plate is changed by the hawk 15, and the direction is corrected by propelling the propulsion tube 1 in this state.

このように図示の実施例によれば小口径管の推
進工法において、通常推進時の直進性が確保さ
れ、また時機にかなつた方向修正が容易に行なわ
れるものであり、従来推進工程中、常時監視修正
が必要とされた推進管理の簡易化と推進能率の向
上が図られるものである。
In this way, according to the illustrated embodiment, in the propulsion method for small diameter pipes, straightness during normal propulsion is ensured, and timely direction corrections can be easily made, which would normally be required during the propulsion process. This will simplify the propulsion management, which previously required monitoring and modification, and improve propulsion efficiency.

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

第1図及び第2図は夫々従来の推進管の稼動状
態を示す側面図、第3図は本考案に係る推進管の
方向修正装置の一実施例を示す縦断側面図、第4
図はその要部拡大縦断側面図、第5図及び第6図
は夫々第4図の矢視−図並に矢視−図、
第7図はその方向修正状態を示す縦断側面図であ
る。 1……推進管、6……内管、7……カツタブレ
ード、13a,13b,13c,13d……可動
板、15……ホーク。
1 and 2 are side views showing the operating state of a conventional propulsion tube, FIG. 3 is a vertical side view showing an embodiment of the propulsion tube direction correction device according to the present invention, and FIG.
The figure is an enlarged vertical sectional side view of the main part, and Figures 5 and 6 are respectively the arrow-view and arrow-view of Figure 4.
FIG. 7 is a longitudinal side view showing the direction correction state. 1...Propulsion tube, 6...Inner tube, 7...Cut blade, 13a, 13b, 13c, 13d...Movable plate, 15...Hawk.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 推進管と、同推進管内に回転及び摺動自在に配
設されたスクリユウブレードを有する内管と、前
記推進管先端部に回動自在に装架された複数の可
動板と、内管の先端部に配設され且つ前記可動板
の1つに選択的に係脱する係合部とよりなること
を特徴とする推進管の方向修正装置。
A propulsion tube, an inner tube having a screw blade rotatably and slidably disposed in the propulsion tube, a plurality of movable plates rotatably mounted on the tip of the propulsion tube, A propulsion tube direction correction device characterized by comprising an engaging portion disposed at the tip portion and selectively engaging and disengaging from one of the movable plates.
JP6688383U 1983-05-06 1983-05-06 Propulsion tube direction correction device Granted JPS59173759U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6688383U JPS59173759U (en) 1983-05-06 1983-05-06 Propulsion tube direction correction device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6688383U JPS59173759U (en) 1983-05-06 1983-05-06 Propulsion tube direction correction device

Publications (2)

Publication Number Publication Date
JPS59173759U JPS59173759U (en) 1984-11-20
JPH026153Y2 true JPH026153Y2 (en) 1990-02-14

Family

ID=30197086

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6688383U Granted JPS59173759U (en) 1983-05-06 1983-05-06 Propulsion tube direction correction device

Country Status (1)

Country Link
JP (1) JPS59173759U (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2722090B2 (en) * 1988-12-19 1998-03-04 株式会社イセキ開発工機 Attitude control device for shield machine

Also Published As

Publication number Publication date
JPS59173759U (en) 1984-11-20

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