JPH0258084U - - Google Patents
Info
- Publication number
- JPH0258084U JPH0258084U JP13501888U JP13501888U JPH0258084U JP H0258084 U JPH0258084 U JP H0258084U JP 13501888 U JP13501888 U JP 13501888U JP 13501888 U JP13501888 U JP 13501888U JP H0258084 U JPH0258084 U JP H0258084U
- Authority
- JP
- Japan
- Prior art keywords
- shield
- pin
- front shield
- center
- upper pin
- 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
- 230000005641 tunneling Effects 0.000 claims 1
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Description
第１図は本考案による中折れ装置のピン連結部
の縦断面図、第２図は第１図の―断面図、第
３図は第１図の―矢視図、第４図は上向き中
折れ時の上部ピンの状態図、第５図は第４図の
―断面図、第６図は従来の中折れ装置を備えた
シールド掘進機の縦断面図、第７図は従来の中折
れ装置のピン連結部縦断面図、第８図は第７図の
―断面図、第９図は第８図の―断面図、
第１０図は従来の中折れ装置の上向き中折れ時の
状態図である。
１…前部シールド、２…後部シールド、１０…
上部ピン、１０ａ…偏心部、１１…下部ピン、１
２，１３…前部シールドの連結部、１４，１５…
後部シールドの支持部、１２ａ，１４ａ…ピン穴
、１６…隙間、１７…球面軸受、１８…中折れジ
ヤツキ、２３…回り止め具、２４…回り止め具取
付ボルト。
Fig. 1 is a vertical sectional view of the pin connection part of the center folding device according to the present invention, Fig. 2 is a cross-sectional view of Fig. 1, Fig. 3 is a view in the direction of the - arrow of Fig. 1, and Fig. 4 is an upward direction. Figure 5 is a cross-sectional view of Figure 4, Figure 6 is a vertical cross-sectional view of a shield excavator equipped with a conventional center-folding device, and Figure 7 is a conventional center-folding device. FIG. 8 is a cross-sectional view of the pin connection part of FIG. 7, FIG. 9 is a cross-sectional view of FIG. 8,
FIG. 10 is a state diagram of the conventional folding device when the folding device is folded upward. 1...Front shield, 2...Rear shield, 10...
Upper pin, 10a... Eccentric part, 11... Lower pin, 1
2, 13... Front shield connection part, 14, 15...
Rear shield support portion, 12a, 14a... pin hole, 16... gap, 17... spherical bearing, 18... center bending jack, 23... rotation stopper, 24... rotation stopper mounting bolt.
Claims (1)
ジヤツキと、前部シールドと後部シールドを左右
対称中心線上で連結し、かつ、左右方向の中折れ
時に旋回中心となる上部ピンおよび下部ピンとを
備えたシールド掘進機の中折れ装置において、上
部ピンに偏心部に設け、その偏心部を常時、前部
シールド側に隙間をあけて前部シールドの連結部
に設けたピン穴に挿入し、かつ後部シールドの上
部ピンを支持する支持部にピン回り止め具を取り
付け、上部ピンをその偏心部で前部シールドを上
向き中折れ状態に保持する位置に回転させ、その
位置に固定できるようにしたことを特徴とするシ
ールド掘進機の中折れ装置。 A shield that includes a center-folding jack that connects the front shield and the rear shield, and an upper pin and a lower pin that connect the front shield and the rear shield on a symmetrical center line, and that serve as the center of rotation when the front shield and the rear shield are folded in the left-right direction. In the center-folding device of an excavator, the upper pin is provided with an eccentric part, and the eccentric part is always inserted into the pin hole provided in the connecting part of the front shield with a gap on the front shield side, and A pin rotation stopper is attached to the support part that supports the upper pin, and the upper pin can be rotated by its eccentric part to a position where the front shield is held in an upwardly bent state, and fixed in that position. A break-out device for shield tunneling machines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13501888U JPH0626624Y2 (en) | 1988-10-18 | 1988-10-18 | Middle folding device for shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13501888U JPH0626624Y2 (en) | 1988-10-18 | 1988-10-18 | Middle folding device for shield machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0258084U true JPH0258084U (en) | 1990-04-26 |
| JPH0626624Y2 JPH0626624Y2 (en) | 1994-07-20 |
Family
ID=31394281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13501888U Expired - Lifetime JPH0626624Y2 (en) | 1988-10-18 | 1988-10-18 | Middle folding device for shield machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0626624Y2 (en) |
-
1988
- 1988-10-18 JP JP13501888U patent/JPH0626624Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0626624Y2 (en) | 1994-07-20 |