JPS6040545U

JPS6040545U - Casing pipe tip drilling blade mounting structure

Info

Publication number: JPS6040545U
Application number: JP13293283U
Authority: JP
Inventors: 久住　宏
Original assignee: 日立建機株式会社
Priority date: 1983-08-30
Filing date: 1983-08-30
Publication date: 1985-03-22
Also published as: JPH026108Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図は本考案が適用される回転式押込装置全　・体間
、第２図乃至第６図は本考案の一実施例を示したもので
、第２図は第１図Ａ部の拡大詳細図、第３図は第２図の
■−■線に沿い一部を断面した矢視図、第４図は第２図
のＩＶ−ＩＶ線に沿う断面図、第５図は第２図の■−■
線に沿う断面図、第゛６図は第２図のＶｌ−ＶＩ線に沿
う断面図、第７図１ま従来行われていたケーシングパイ
プの先端に設けた掘削刃取付構造の一部断面斜視図であ
る。１・・・ケーシングパイプ、１ａ・・・胴部、１２，１
３．１４・・・掘削刃、１２ａ、１３ａ・・・逃げ面、
１　　　　′５・・・ボルト、δ１．δ２・・・ギャッ
プ。　□第１図　−，１１４−「−一７２Ｕ旺−」−肥′。、１　　　　ｋ〉Ｉａ −５−−＠Ｉ−へ〉第４図第７−図Figure 1 shows the entire body of the rotary pushing device to which the present invention is applied, Figures 2 to 6 show an embodiment of the present invention, and Figure 2 is an enlarged view of part A in Figure 1. Detailed view, Figure 3 is a partially cross-sectional view taken along the line ■-■ in Figure 2, Figure 4 is a cross-sectional view taken along the line IV-IV in Figure 2, and Figure 5 is the view shown in Figure 2. ■－■
6 is a sectional view taken along line Vl-VI in FIG. 2, and FIG. 7 is a partial cross-sectional perspective view of the conventional drilling blade mounting structure provided at the tip of the casing pipe. It is a diagram. 1...Casing pipe, 1a...Body part, 12,1
3.14...Drilling blade, 12a, 13a...Flank surface,
1'5...Volt, δ1. δ2...gap. □Fig. , 1 k〉Ia -5--@I-〉 Fig. 4 Fig. 7-

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

ケーシングパイプの先端に掘削刃を取付け、ケージレグ
パイプを回転させることにより、地盤を掘削してケーシ
ングパイプの押込抵抗を軽減させる装置において、前記
掘削刃を撥−シングパイプを内周側と外周側と中央部と
の３位置に順次配設し、中央部の掘削刃を内、外周側の
掘削刃より先行して掘削させるようにすると共に、内、
外周側の掘削刃とケーシングパイプの胴部内、外壁との
間にギャップを生じさせるように構成したことを特徴と
するケーシングパイプ先端掘削刃取付構造。In a device that attaches a digging blade to the tip of a casing pipe and rotates a cage leg pipe to excavate the ground and reduce the pushing resistance of the casing pipe, the digging blade is repelled and the singing pipe is moved to the inner and outer peripheral sides. and the center, so that the excavation blade in the center excavates in advance of the excavation blades on the inner and outer circumferential sides.
A casing pipe tip excavator blade mounting structure characterized in that it is configured to create a gap between the outer peripheral side excavator blade and the inside and outer wall of the body of the casing pipe.