JPS5998982U - ビツトの構造 - Google Patents

ビツトの構造

Info

Publication number
JPS5998982U
JPS5998982U JP11501983U JP11501983U JPS5998982U JP S5998982 U JPS5998982 U JP S5998982U JP 11501983 U JP11501983 U JP 11501983U JP 11501983 U JP11501983 U JP 11501983U JP S5998982 U JPS5998982 U JP S5998982U
Authority
JP
Japan
Prior art keywords
bit structure
bit
center
utility
group
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
Application number
JP11501983U
Other languages
English (en)
Inventor
中野　澄男
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Taisei Corp
Original Assignee
Taisei Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Taisei Corp filed Critical Taisei Corp
Priority to JP11501983U priority Critical patent/JPS5998982U/ja
Publication of JPS5998982U publication Critical patent/JPS5998982U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

Description

【図面の簡単な説明】
第１．２Ｎ：ビットの説明図。

Claims (1)

  1. 【実用新案登録請求の範囲】 中央に大口径の放出口を開口し、 その周囲に短いピッチ群を配列し、 少なくとも一本のピッチがビットの中心点にまで達して
    いるよう構成した ビットの構造。
JP11501983U 1983-07-26 1983-07-26 ビツトの構造 Pending JPS5998982U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11501983U JPS5998982U (ja) 1983-07-26 1983-07-26 ビツトの構造

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11501983U JPS5998982U (ja) 1983-07-26 1983-07-26 ビツトの構造

Publications (1)

Publication Number Publication Date
JPS5998982U true JPS5998982U (ja) 1984-07-04

Family

ID=30265658

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11501983U Pending JPS5998982U (ja) 1983-07-26 1983-07-26 ビツトの構造

Country Status (1)

Country Link
JP (1) JPS5998982U (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012237150A (ja) * 2011-05-12 2012-12-06 Okabe Co Ltd 穿孔ビット
JP2012237151A (ja) * 2011-05-12 2012-12-06 Okabe Co Ltd 穿孔ビット

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS539205A (en) * 1976-07-12 1978-01-27 Christensen Inc Ground boring drill bit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS539205A (en) * 1976-07-12 1978-01-27 Christensen Inc Ground boring drill bit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012237150A (ja) * 2011-05-12 2012-12-06 Okabe Co Ltd 穿孔ビット
JP2012237151A (ja) * 2011-05-12 2012-12-06 Okabe Co Ltd 穿孔ビット

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