JPH02106089U

JPH02106089U -

Info

Publication number: JPH02106089U
Application number: JP1453389U
Authority: JP
Priority date: 1989-02-08
Filing date: 1989-02-08
Publication date: 1990-08-23

Description

[Brief explanation of drawings]

第１図は本考案の一実施例の一部切欠側面図、
第２図は要部の一部縦断側面図、第３図はＣ−Ｃ
線断面図、第５図は前図に示す部分の作用の説明
図、第５図は全装置の作用を示す簡略前面図、第
６図は従来例の簡略前面図である。図中１……接地機体、２……主ターンテーブ
ル、３……副ターンテーブル、６……クレーンブ
ーム、８……支持本体、１０……マスト、２０…
…ケリー。 FIG. 1 is a partially cutaway side view of an embodiment of the present invention;
Figure 2 is a partial longitudinal side view of the main part, Figure 3 is C-C
5 is a diagram illustrating the operation of the parts shown in the previous figure, FIG. 5 is a simplified front view showing the operation of the entire device, and FIG. 6 is a simplified front view of the conventional example. In the diagram: 1...Grounding body, 2...Main turntable, 3...Sub-turntable, 6...Crane boom, 8...Support body, 10...Mast, 20...
…Kelly.

補正平１．５．８図面の簡単な説明を次のように補正する。明細書第７頁第１５行の「第５図は前図」とある
のを、「第４図は前図」と補正する。Amendment 1.5.8 Hei 1. The brief description of the drawing is amended as follows. On page 7, line 15 of the specification, the statement ``Figure 5 is the front figure'' is corrected to ``Figure 4 is the front figure.''

Claims

[Scope of utility model registration request]

In a ground hole drilling machine in which a kelly 20 suspended by a crane is rotationally driven by a rotary drive device 18, a sub turntable 3 is rotatably provided on a main turntable 2 rotatably provided on a grounding body 1,
The lower end of the crane boom 6 is pivotally supported 7 on the support body 8 on the sub-turntable 3 so that the crane boom 6 can be raised and lowered freely, and a rotary drive device 18 is supported on the main turntable 2 in front of the pivot 7 position. A ground hole excavator having a mast 10 attached so as to be tiltable and rotatable to the left and right.