JPS5989186U - drilling shaft - Google Patents

drilling shaft

Info

Publication number
JPS5989186U
JPS5989186U JP18459382U JP18459382U JPS5989186U JP S5989186 U JPS5989186 U JP S5989186U JP 18459382 U JP18459382 U JP 18459382U JP 18459382 U JP18459382 U JP 18459382U JP S5989186 U JPS5989186 U JP S5989186U
Authority
JP
Japan
Prior art keywords
circumferential surface
outer circumferential
tip
shaft
rotating shaft
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
JP18459382U
Other languages
Japanese (ja)
Other versions
JPS632547Y2 (en
Inventor
冨松　聡
幸正 野村
小梶　延一
Original Assignee
株式会社長谷川工務店
近畿コンクリ−ト販売株式会社
栄輝産業株式会社
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 株式会社長谷川工務店, 近畿コンクリ−ト販売株式会社, 栄輝産業株式会社 filed Critical 株式会社長谷川工務店
Priority to JP18459382U priority Critical patent/JPS5989186U/en
Publication of JPS5989186U publication Critical patent/JPS5989186U/en
Application granted granted Critical
Publication of JPS632547Y2 publication Critical patent/JPS632547Y2/ja
Granted 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。(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]

図面は本考案の実施例を示し、第１図は削孔軸（アー・
スオーガ）の側面図、第２図は第１の別実゛施例の部分
側面図、第３図は第２の別実施例の側面図、第４図は第
２図のＩＶ−ＩＶ線断面図である。 １・・・回転軸、４・・・軸体、５・・・螺旋翼、Ｓ・
・・円錐状外周面、Ｓｌ・・・円柱状外周面。The drawings show an embodiment of the present invention, and FIG.
Fig. 2 is a partial side view of the first alternative embodiment, Fig. 3 is a side view of the second alternative embodiment, and Fig. 4 is a cross section taken along the line IV-IV in Fig. 2. It is a diagram. 1... Rotating shaft, 4... Shaft body, 5... Helical blade, S.
... Conical outer circumferential surface, Sl... Cylindrical outer circumferential surface.

Claims (1)

【実用新案登録請求の範囲】 ■　回転軸の先端に装着される軸体の外周面を、先端側
はど小径にする円錐状外周面に形成すると共に、該円錐
状外周面に、前記回転軸の削孔時における回転に伴って
前記回転軸にこれを持上げる方向の推力を生じせしめる
螺旋翼を設けであることを特徴とする削孔軸の先端刃体
。 ■　前記軸体の後端側外周面を円柱状外周面に形成する
と共に、該円柱状外周面よ゛りも先端側部分を円錐状外
周面に形成ｌ７、かつ、前記螺旋翼の先端軌跡を前記円
柱状外周面よりも小に構成しであることを特徴とする実
用新案登録請求の範囲第０項に記載の削孔軸の先端刃体
。[Claims for Utility Model Registration] ■ The outer circumferential surface of the shaft body attached to the tip of the rotating shaft is formed into a conical outer circumferential surface with a smaller diameter on the tip side, and the rotating shaft is attached to the conical outer circumferential surface. A tip blade of a drilling shaft, characterized in that it is provided with a helical blade that generates a thrust in a direction to lift the rotating shaft as it rotates during drilling. (i) The rear end side outer circumferential surface of the shaft body is formed into a cylindrical outer circumferential surface, and the distal end side of the cylindrical outer circumferential surface is formed into a conical outer circumferential surface l7, and the tip locus of the helical blade is formed into a conical outer circumferential surface. The tip blade of a drilling shaft according to claim 0, which is configured to be smaller than the cylindrical outer circumferential surface.
JP18459382U 1982-12-06 1982-12-06 drilling shaft Granted JPS5989186U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18459382U JPS5989186U (en) 1982-12-06 1982-12-06 drilling shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18459382U JPS5989186U (en) 1982-12-06 1982-12-06 drilling shaft

Publications (2)

Publication Number Publication Date
JPS5989186U true JPS5989186U (en) 1984-06-16
JPS632547Y2 JPS632547Y2 (en) 1988-01-22

Family

ID=30399204

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18459382U Granted JPS5989186U (en) 1982-12-06 1982-12-06 drilling shaft

Country Status (1)

Country Link
JP (1) JPS5989186U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63289114A (en) * 1987-05-21 1988-11-25 Matsuzawa Kiko:Kk Head for drill casing

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56138993U (en) * 1980-03-24 1981-10-21

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56138993U (en) * 1980-03-24 1981-10-21

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63289114A (en) * 1987-05-21 1988-11-25 Matsuzawa Kiko:Kk Head for drill casing

Also Published As

Publication number Publication date
JPS632547Y2 (en) 1988-01-22

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