JPS6285592U - - Google Patents
Info
- Publication number
- JPS6285592U JPS6285592U JP17600985U JP17600985U JPS6285592U JP S6285592 U JPS6285592 U JP S6285592U JP 17600985 U JP17600985 U JP 17600985U JP 17600985 U JP17600985 U JP 17600985U JP S6285592 U JPS6285592 U JP S6285592U
- Authority
- JP
- Japan
- Prior art keywords
- bit
- diameter
- utility
- model registration
- air hammer
- 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
Landscapes
- Earth Drilling (AREA)
Description
第１図は本考案に係わる拡径式衝撃掘削装置の
構造を示す断面図、第２図はビツト取付部の構造
を示す断面図、第３図は本実施例での拡径状態の
ビツトの配置を示す底面図、第４図は本実施例で
の縮径状態のビツトの配置を示す底面図である。
１０……衝撃掘削装置、１２，１４……エアハ
ンマドリル、１８……ビツト、２０……ピストン
、３０……掘削孔、３２……ケーシングパイプ。
Fig. 1 is a cross-sectional view showing the structure of the diameter-expanding impact excavation device according to the present invention, Fig. 2 is a cross-sectional view showing the structure of the bit mounting part, and Fig. 3 is a cross-sectional view showing the structure of the bit in the expanded diameter state in this embodiment. FIG. 4 is a bottom view showing the arrangement of the bits in a reduced diameter state in this embodiment. 10...Impact drilling device, 12, 14...Air hammer drill, 18...Bit, 20...Piston, 30...Drilling hole, 32...Casing pipe.
Claims (1)
れると共に各ビツト同土が相互干渉した状態で配
置され、前記ビツトはエアハンマドリルの下端部
に一定範囲回動可能に取付けられると共に孔底面
に着座した状態で正転又は逆転することによりビ
ツト外径が拡縮変化することを特徴とする拡径式
衝撃掘削装置。 (2) 前記ビツトは、縮径状態でケーシングパイ
プ内を挿通可能であり、拡径状態で掘削径となる
ことを特徴とする実用新案登録請求の範囲第(1)
項の拡径式衝撃掘削装置。[Claims for Utility Model Registration] (1) A plurality of air hammer drills are arranged side by side and bundled, and each bit is arranged with the same soil interfering with each other, and the bit is rotated within a certain range at the lower end of the air hammer drill. What is claimed is: 1. A diameter-expanding impact drilling device, which is capable of being mounted on a hole bottom, and expands and contracts the outer diameter of the bit by rotating forward or backward while seated on the bottom of a hole. (2) Utility model registration claim No. (1) characterized in that the bit can be inserted into the casing pipe in a reduced diameter state and has an excavated diameter in an expanded diameter state.
Expanded diameter impact drilling equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17600985U JPS6285592U (en) | 1985-11-15 | 1985-11-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17600985U JPS6285592U (en) | 1985-11-15 | 1985-11-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6285592U true JPS6285592U (en) | 1987-06-01 |
Family
ID=31115857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17600985U Pending JPS6285592U (en) | 1985-11-15 | 1985-11-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6285592U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019124009A (en) * | 2018-01-12 | 2019-07-25 | 大智株式会社 | Drilling machine, rotational drilling machine, drilling method and drilling bit |
| JP2025114453A (en) * | 2024-01-24 | 2025-08-05 | 日本コンクリート工業株式会社 | Expanding Drilling Rig |
-
1985
- 1985-11-15 JP JP17600985U patent/JPS6285592U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019124009A (en) * | 2018-01-12 | 2019-07-25 | 大智株式会社 | Drilling machine, rotational drilling machine, drilling method and drilling bit |
| JP2025114453A (en) * | 2024-01-24 | 2025-08-05 | 日本コンクリート工業株式会社 | Expanding Drilling Rig |
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