JPH0289092U

JPH0289092U -

Info

Publication number: JPH0289092U
Application number: JP16798888U
Authority: JP
Priority date: 1988-12-26
Filing date: 1988-12-26
Publication date: 1990-07-13

Description

[Brief explanation of drawings]

第１図は本考案の一実施例の断面図、第２図は
第１図の―方向の矢視図、第３図は本考案の
係止具の正面図、第４図は第１図の―方向か
ら見た方向制御ジヤツキの偏心状態を示す矢視図
、第５図は第４図の調整状態にあるシールド機に
生ずる力関係の説明図、第６図は従来の推進工法
の一例を示す一部を切欠いた断面図である。図中、１は発進立坑、２は元押装置、３はヒユ
ーム管、４はシールド機、５は前部フレーム、６
は後部フレーム、７は切羽カツタ、８は方向制御
ジヤツキ、１２，１３は取付端部、２１は係止具
を示している。 Fig. 1 is a sectional view of one embodiment of the present invention, Fig. 2 is a view taken in the - direction of Fig. 1, Fig. 3 is a front view of the locking device of the present invention, and Fig. 4 is the same as Fig. 1. Fig. 5 is an explanatory diagram of the force relationship that occurs in the shield machine in the adjusted state of Fig. 4. Fig. 6 is an example of the conventional propulsion method. FIG. In the figure, 1 is the starting shaft, 2 is the main push device, 3 is the hump pipe, 4 is the shield machine, 5 is the front frame, 6
7 is a rear frame, 7 is a face cutter, 8 is a direction control jack, 12 and 13 are mounting ends, and 21 is a locking tool.

Claims

[Scope of utility model registration request]

A rear frame that receives thrust through a hump pipe by a main pushing device installed in the starting shaft and a front frame having a face cutter at the tip are arranged at a predetermined interval along the circumferential direction between the two frames. In a propulsion shield machine configured by connecting a plurality of direction control jacks, at least one of the mounting ends of the direction control jacks is supported so as to be adjustable in position in the circumferential direction, and is restrained against gravitational force in the axial direction. A rolling correction device for a propulsion shield machine, characterized in that the rolling correction device is attached to the frame via a locking tool fixed to the frame.