JPH03119092U - - Google Patents
Info
- Publication number
- JPH03119092U JPH03119092U JP2667590U JP2667590U JPH03119092U JP H03119092 U JPH03119092 U JP H03119092U JP 2667590 U JP2667590 U JP 2667590U JP 2667590 U JP2667590 U JP 2667590U JP H03119092 U JPH03119092 U JP H03119092U
- Authority
- JP
- Japan
- Prior art keywords
- kelly bar
- bar
- kelly
- torque
- protrusion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009412 basement excavation Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Description
第１図〜第３図は本考案の一実施例を示し、第
１図は本考案に係るケリーバ装置の全体構成を示
す断面図、第２図はインナケリーバを示す斜視図
、第３図は第１図の−線断面図である。第４
図は従来のケリーバ装置を示す全体構成図、第５
図はそのインナケリーバの斜視図、第６図は第４
図の−線断面図である。
２……セカンドケリーバ、２ａ……角溝、３…
…アウタケリーバ、５，３１……ばね受け、２０
……インナケリーバ、２１……本体軸部、２２…
…連結軸部、３２……位置決め用バー、３３……
トルク伝達用バー。
1 to 3 show an embodiment of the present invention, FIG. 1 is a sectional view showing the overall structure of the kelly lever device according to the present invention, FIG. 2 is a perspective view showing the inner kelly lever, and FIG. FIG. 1 is a sectional view taken along the - line in FIG. 1; Fourth
The figure is an overall configuration diagram showing the conventional Kerryba device.
The figure is a perspective view of the inner keel, and Figure 6 is the 4th one.
It is a sectional view taken along the line - in the figure. 2...Second kelly bar, 2a...square groove, 3...
...Outer rib, 5, 31...Spring receiver, 20
...Inner lever, 21...Body shaft, 22...
...Connection shaft portion, 32... Positioning bar, 33...
Torque transmission bar.
Claims (1)
トルク伝達用溝を有する第２のケリーバを伸縮自
在に、かつトルク伝達可能に外挿して成るケリー
バ装置において、 前記第１のケリーバは一本の丸棒状あるいは円
筒状部材で構成されるとともに、その下端に、掘
削バケツトの連結角孔に連結固定するための連結
用突起部が設けられていることを特徴とするケリ
ーバ装置。[Claims for Utility Model Registration] A Kelly bar device comprising a first Kelly bar having a torque transmitting protrusion and a second Kelly bar having a torque transmitting groove extendably and retractably and capable of transmitting torque, comprising: The Kelly bar of No. 1 is composed of a single round bar-shaped or cylindrical member, and is characterized in that the lower end thereof is provided with a connecting protrusion for connecting and fixing to the connecting square hole of the excavation bucket. Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2667590U JPH03119092U (en) | 1990-03-16 | 1990-03-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2667590U JPH03119092U (en) | 1990-03-16 | 1990-03-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03119092U true JPH03119092U (en) | 1991-12-09 |
Family
ID=31529555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2667590U Pending JPH03119092U (en) | 1990-03-16 | 1990-03-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03119092U (en) |
-
1990
- 1990-03-16 JP JP2667590U patent/JPH03119092U/ja active Pending