JPS60111986U - drilling knife - Google Patents

drilling knife

Info

Publication number
JPS60111986U
JPS60111986U JP20490783U JP20490783U JPS60111986U JP S60111986 U JPS60111986 U JP S60111986U JP 20490783 U JP20490783 U JP 20490783U JP 20490783 U JP20490783 U JP 20490783U JP S60111986 U JPS60111986 U JP S60111986U
Authority
JP
Japan
Prior art keywords
drilling
circumferential direction
base plate
bit
guide holes
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.)
Granted
Application number
JP20490783U
Other languages
Japanese (ja)
Other versions
JPS636315Y2 (en
Inventor
瀬谷　実
片山　英雄
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP20490783U priority Critical patent/JPS60111986U/en
Publication of JPS60111986U publication Critical patent/JPS60111986U/en
Application granted granted Critical
Publication of JPS636315Y2 publication Critical patent/JPS636315Y2/ja
Granted legal-status Critical Current

Links

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。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図および第２図は本考案を適用する掘削工法の説明
図、第３図および第４図は本考案の掘削刃物の１実施例
の底面図、第５図は第３図におけるＸ−Ｘ部拡大断面図
である。 １・・・・・・ケーシング、２・・・・・・削孔パケッ
ト、４・・・・・・掘削刃物、５・・・・・・基板、６
・・・・・・ガイドピン、７・・・・・・ビット台、８
・・・・・・掘削ビット、９・・・・・・ガイド孔。Figures 1 and 2 are explanatory diagrams of the excavation method to which the present invention is applied, Figures 3 and 4 are bottom views of one embodiment of the excavation cutter of the present invention, and Figure 5 is the It is an enlarged sectional view of the X part. 1...Casing, 2...Drilling packet, 4...Drilling knife, 5...Substrate, 6
...Guide pin, 7...Bit stand, 8
...Drilling bit, 9...Guide hole.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 環状円形をなす基板の下面にはその周方向に沿って多数
個のガイドピンを立設し、外周縁部に複数個の掘削ビッ
トを有する扇形板状の複数個のビット台に円周方向に対
して斜め方向に延びる長孔状ガイド孔をそれぞれ穿設し
、該ガイド孔に前記ガイドピンを嵌挿して各ビット台を
前記基板に対して摺動可能に取り付けてなる掘削刃物。A large number of guide pins are set up along the circumferential direction on the lower surface of the annular substrate, and a plurality of fan-shaped plate-shaped bit stands having a plurality of drilling bits on the outer periphery are installed in the circumferential direction. An excavating cutter, in which each bit stand is slidably attached to the base plate by drilling long guide holes extending obliquely to the base plate and inserting the guide pins into the guide holes.
JP20490783U 1983-12-27 1983-12-27 drilling knife Granted JPS60111986U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20490783U JPS60111986U (en) 1983-12-27 1983-12-27 drilling knife

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20490783U JPS60111986U (en) 1983-12-27 1983-12-27 drilling knife

Publications (2)

Publication Number Publication Date
JPS60111986U true JPS60111986U (en) 1985-07-29
JPS636315Y2 JPS636315Y2 (en) 1988-02-22

Family

ID=30767289

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20490783U Granted JPS60111986U (en) 1983-12-27 1983-12-27 drilling knife

Country Status (1)

Country Link
JP (1) JPS60111986U (en)

Also Published As

Publication number Publication date
JPS636315Y2 (en) 1988-02-22

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