JPS5989194U

JPS5989194U - excavator

Info

Publication number: JPS5989194U
Application number: JP18416782U
Authority: JP
Inventors: 忠男吉川
Original assignee: 日立造船株式会社
Priority date: 1982-12-03
Filing date: 1982-12-03
Publication date: 1984-06-16
Also published as: JPS6329037Y2

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

[Brief explanation of the drawing]

第１図は本考案の一実施例の一部切欠側面図、第２図は
第１図のＩ−Ｉ矢視図、第３図は本考案に係る掘削機を
クローラ装置に搭載した場合の全体側面図である。１・・・回転軸、２・・・回転駆動装置、２ａ・・・固
定ボス部、３・・・第１掘削ヘツド、３ａ・・・アーム
部、３ｂ・・・凹部、５・・・第２掘削ヘツド、５ａ・
・・後端環状部、５ｂ・・・前端ヘッド部、６・！・シ
リンダ装置、６ａ・・・ロッド、７・・・環状溝、ａ・
・・回転コマ、１０・・・第１掘削ビツト、１１・・・
第２掘削ビツト、１２・・・掘削機。Fig. 1 is a partially cutaway side view of an embodiment of the present invention, Fig. 2 is a view taken along the line I-I in Fig. 1, and Fig. 3 shows the excavator according to the present invention mounted on a crawler device. It is an overall side view. DESCRIPTION OF SYMBOLS 1... Rotation shaft, 2... Rotation drive device, 2a... Fixed boss part, 3... First excavation head, 3a... Arm part, 3b... Recessed part, 5... No. 2 drilling head, 5a.
...Rear end annular portion, 5b...Front end head portion, 6.!・Cylinder device, 6a... Rod, 7... Annular groove, a.
...Rotating top, 10...First excavation bit, 11...
Second drilling bit, 12...excavator.

Claims

[Scope of utility model registration request]

An excavator characterized in that a first excavation head is connected to a rotation shaft of a rotation drive device, and a second excavation head is engaged and held by the first excavation head so as to be movable in the direction of the rotation axis.