JPH0190892U - - Google Patents
Info
- Publication number
- JPH0190892U JPH0190892U JP18529287U JP18529287U JPH0190892U JP H0190892 U JPH0190892 U JP H0190892U JP 18529287 U JP18529287 U JP 18529287U JP 18529287 U JP18529287 U JP 18529287U JP H0190892 U JPH0190892 U JP H0190892U
- Authority
- JP
- Japan
- Prior art keywords
- bit
- casing
- tip
- bit part
- excavation
- 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 description 2
- 238000005553 drilling Methods 0.000 claims 1
- 230000001681 protective effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Description
第１図は本考案実施例のケーシングビツトの全
体を示す正面図、第２図は同下面図であり、第３
図はバイトの取付けとバイト形状を示す部分拡大
正面図である。他方、第４図は従来のケーシング
ビツトのバイトチツプ形状を示す部分拡大正面図
であり、第５図はケーシング工法による掘削作業
を説明する図である。
１：ケーシング、１ａ：ケーシング先端部、２
：ビツト部、３：バイト、３ａ：バイト先端部、
４：取付け部材、５：ボルト、６：バイトチツプ
、１０：ケーシング、１１：ビツト部、１２：バ
イト、１３：バイトチツプ、２０：ハンマグラブ
、Ａ：土中、ｂ：岩盤、Ｃ：ケーシングの回転方
向、Ｄ：バイトチツプの回転進行方向。
FIG. 1 is a front view showing the entire casing bit of the embodiment of the present invention, FIG. 2 is a bottom view of the same, and FIG.
The figure is a partially enlarged front view showing the attachment of the cutting tool and the shape of the cutting tool. On the other hand, FIG. 4 is a partially enlarged front view showing the shape of the bit tip of a conventional casing bit, and FIG. 5 is a diagram illustrating excavation work using the casing method. 1: Casing, 1a: Casing tip, 2
: Bit part, 3: Bit part, 3a: Bit part,
4: Mounting member, 5: Bolt, 6: Bit tip, 10: Casing, 11: Bit part, 12: Bit part, 13: Bit tip, 20: Hammer grab, A: In soil, b: Rock, C: Rotation direction of casing, D: Direction of rotation of the bite tip.
Claims (1)
多数個のバイトをボルトにより着脱自在に取り付
けてビツト部を構成し、該ビツト部は前記バイト
に固着したバイトチツプの回転進行側に防護壁部
分を有する構造としたことを特徴とする掘削用ケ
ーシングビツト。 At the tip of the casing used for rotary press-fit drilling,
A casing bit for excavation, characterized in that a plurality of bits are removably attached with bolts to form a bit part, and the bit part has a structure having a protective wall part on the rotating side of a bit tip fixed to the bit. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18529287U JPH0190892U (en) | 1987-12-03 | 1987-12-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18529287U JPH0190892U (en) | 1987-12-03 | 1987-12-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0190892U true JPH0190892U (en) | 1989-06-14 |
Family
ID=31476612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18529287U Pending JPH0190892U (en) | 1987-12-03 | 1987-12-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0190892U (en) |
-
1987
- 1987-12-03 JP JP18529287U patent/JPH0190892U/ja active Pending