JPH0340393U

JPH0340393U -

Info

Publication number: JPH0340393U
Application number: JP9992789U
Authority: JP
Priority date: 1989-08-29
Filing date: 1989-08-29
Publication date: 1991-04-18

Description

[Brief explanation of the drawing]

図面はこの考案の一実施例を示し、第１図は異
形断面シールドの断面図、第２図は同正面図、第
３図は掘削装置の拡大平面図、第４図は同正面図
、第５図はアーム部分の平面図、第６図は同正面
図、第７図は同側面図、第８図は第５図の−
線に沿う断面図、第９図はカツタ装置の分解斜視
図、第１０図〜第１２図は従来の説明図である。１……シールド本体、３，４……カツタヘツド
、７……三角コーナ部、１０……アーム、１０ａ
……スポーク、１１……カツタビツト、１３……
掻き板、１４……カツテングエツジ。 The drawings show one embodiment of this invention, in which Fig. 1 is a cross-sectional view of the irregular cross-section shield, Fig. 2 is a front view of the same, Fig. 3 is an enlarged plan view of the excavation equipment, and Fig. 4 is a front view of the shield, and Fig. 4 is a front view of the same. Fig. 5 is a plan view of the arm portion, Fig. 6 is a front view of the same, Fig. 7 is a side view of the same, and Fig. 8 is a side view of Fig. 5.
FIG. 9 is an exploded perspective view of the cutter device, and FIGS. 10 to 12 are explanatory views of the conventional method. 1...Shield body, 3, 4...Cut head, 7...Triangular corner part, 10...Arm, 10a
...Spoke, 11... Katsutabitsuto, 13...
Scraping board, 14...Katsutengutsuji.

Claims

[Scope of utility model registration request]

In an irregular cross-section shield excavator in which a large-diameter cutter head 3 and a plurality of small-diameter cutter heads 4 are rotatably provided at the front of a shield body 1, a triangular corner portion 7 formed between the small-diameter cutter heads 4 is provided. , an arm 10 with a plurality of spokes 10a protruding forward and downward is provided so as to be swingable in the horizontal direction by a driving means, and a scraper plate 13 is provided on the outer spoke 10a among the spokes 10a, and a scraper plate 13 is provided on the upper surface of the remaining spokes. The excavation device is an irregular cross-section shield excavator, which is provided with a cutting edge 14 for excavating the earth and sand above between each spoke 10a, and a cutting edge 11 at the tip of each spoke 10a.