JPS63112590U - - Google Patents
Info
- Publication number
- JPS63112590U JPS63112590U JP450587U JP450587U JPS63112590U JP S63112590 U JPS63112590 U JP S63112590U JP 450587 U JP450587 U JP 450587U JP 450587 U JP450587 U JP 450587U JP S63112590 U JPS63112590 U JP S63112590U
- Authority
- JP
- Japan
- Prior art keywords
- claws
- rotary
- excavating
- rotational direction
- bit
- 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
- 210000000078 claw Anatomy 0.000 claims description 12
- 238000009412 basement excavation Methods 0.000 claims description 5
- 238000005553 drilling Methods 0.000 claims 2
Landscapes
- Earth Drilling (AREA)
Description
第１図は本考案による掘削ビツトの一実施例を
示す側面図、第２図は該実施例の下面図、第３図
は該実施例の溝を有する掘削爪の取付け状態にお
ける形状を示す平面図、第４図は同じくその側面
図、第５図は同じくその正面図、第６図は該実施
例の溝を有しない掘削爪の取付け状態における正
面図、第７図は該実施例の溝を有する掘削爪によ
る掘削状態を示す側面断面図、第８図は第７図の
Ａ―Ａ断面図、第９図は該実施例の溝を有しない
掘削爪による掘削状態を示す側面断面図、第１０
図は本考案の他の実施例の掘削爪を取付け状態に
て示す正面図、第１１図は従来の掘削爪を示す側
面図である。
Fig. 1 is a side view showing an embodiment of the digging bit according to the present invention, Fig. 2 is a bottom view of the embodiment, and Fig. 3 is a plan view showing the shape of the grooved digging claw of the embodiment in the attached state. FIG. 4 is a side view of the same, FIG. 5 is a front view of the same, FIG. 6 is a front view of the grooveless excavation claw of the embodiment in an installed state, and FIG. 7 is a groove of the embodiment. FIG. 8 is a sectional view taken along the line AA in FIG. 7, and FIG. 9 is a side sectional view showing an excavation state by the excavation claw having no groove according to the embodiment. 10th
The figure is a front view showing an installed digging claw according to another embodiment of the present invention, and FIG. 11 is a side view showing a conventional digging claw.
Claims (1)
式掘削ビツトにおいて、回転体に回転方向に複数
個の掘削爪を配設し、これらの複数個の爪のうち
、一部の爪を先端の超硬チツプ下面に回転方向に
溝または突起を設けたものとし、残りの爪は該溝
または突起を設けないものとしたことを特徴とす
る回転式掘削ビツト。 ２ 前記溝または突起を設けた掘削爪と溝または
突起を設けない掘削爪とを回転方向に交互に配設
したことを特徴とする実用新案登録請求の範囲第
１項記載の回転式掘削ビツト。 ３ 前記回転体が円筒体であり、その外周に前記
掘削爪が着脱自在に取付けられる構造を有するこ
とを特徴とする実用新案登録請求の範囲第１項記
載の回転式掘削ビツト。[Scope of Claim for Utility Model Registration] 1. In a rotary drilling bit provided at the lower end of an earth auger drill, a plurality of drilling claws are arranged in the rotational direction on the rotating body, and some of these plurality of claws are A rotary excavating bit characterized in that one of the claws is provided with a groove or a protrusion in the rotational direction on the lower surface of the carbide tip at the tip, and the remaining claws are not provided with the groove or protrusion. 2. The rotary excavating bit according to claim 1, wherein the excavating claws provided with grooves or protrusions and the excavating claws without grooves or protrusions are arranged alternately in the rotational direction. 3. The rotary excavation bit according to claim 1, wherein the rotary body is a cylindrical body, and the excavation claw is detachably attached to the outer periphery of the rotary body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP450587U JPS63112590U (en) | 1987-01-16 | 1987-01-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP450587U JPS63112590U (en) | 1987-01-16 | 1987-01-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63112590U true JPS63112590U (en) | 1988-07-20 |
Family
ID=30785226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP450587U Pending JPS63112590U (en) | 1987-01-16 | 1987-01-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63112590U (en) |
-
1987
- 1987-01-16 JP JP450587U patent/JPS63112590U/ja active Pending
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