JPH0412588U - - Google Patents
Info
- Publication number
- JPH0412588U JPH0412588U JP5306090U JP5306090U JPH0412588U JP H0412588 U JPH0412588 U JP H0412588U JP 5306090 U JP5306090 U JP 5306090U JP 5306090 U JP5306090 U JP 5306090U JP H0412588 U JPH0412588 U JP H0412588U
- Authority
- JP
- Japan
- Prior art keywords
- casing tube
- grab bucket
- sand
- earth
- 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
- 230000002265 prevention Effects 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Earth Drilling (AREA)
Description
第１，２図は本考案に係わるボーリングマシン
の深掘り防止装置の一実施例を示す縦断側面図、
第３図は従来のボーリングマシンを示す側面図、
第４，５図はその作用説明図、第６図はケーシン
グチユーブの周りで発生する地盤沈下の説明図で
ある。
５……ワイヤ、６ａ……グラブバケツト、９…
…ケーシングチユーブ、１２……土砂、１６……
深掘り防止用ストツパ、１７……突起。
1 and 2 are longitudinal sectional side views showing an embodiment of a deep digging prevention device for a boring machine according to the present invention;
Figure 3 is a side view of a conventional boring machine.
Figures 4 and 5 are explanatory diagrams of its operation, and Figure 6 is an explanatory diagram of ground subsidence that occurs around the casing tube. 5... Wire, 6a... Grab bucket, 9...
...Casing tube, 12... Earth and sand, 16...
Stopper for preventing deep digging, 17...protrusion.
Claims (1)
ヤを緩めて重力により落下させることにより同ケ
ーシングチユーブ中の土砂に貫入して土砂を掘削
するグラブバケツトとを有するボーリングマシン
において、前記グラブバケツトの外周部に突起を
形成し、同突起に衝接して同グラブバケツトの深
掘りを防止する深掘り防止用ストツパを同ケーシ
ングチユーブの内周面に設けたことを特徴とする
ボーリングマシンの深掘り防止装置。 In a boring machine having a casing tube that is pushed into the ground and a grab bucket that penetrates the earth and sand in the casing tube and excavates the earth and sand by loosening a wire and letting it fall by gravity, a protrusion is formed on the outer periphery of the grab bucket. A deep digging prevention device for a boring machine, characterized in that a deep digging prevention stopper is provided on the inner peripheral surface of the casing tube to prevent the grab bucket from digging deeply by colliding with the protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5306090U JPH0412588U (en) | 1990-05-23 | 1990-05-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5306090U JPH0412588U (en) | 1990-05-23 | 1990-05-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0412588U true JPH0412588U (en) | 1992-01-31 |
Family
ID=31573916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5306090U Pending JPH0412588U (en) | 1990-05-23 | 1990-05-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0412588U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019007149A (en) * | 2017-06-21 | 2019-01-17 | 菱建基礎株式会社 | Friction cut casing |
-
1990
- 1990-05-23 JP JP5306090U patent/JPH0412588U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019007149A (en) * | 2017-06-21 | 2019-01-17 | 菱建基礎株式会社 | Friction cut casing |