JPS63166403U - - Google Patents

Info

Publication number
JPS63166403U
JPS63166403U JP6042487U JP6042487U JPS63166403U JP S63166403 U JPS63166403 U JP S63166403U JP 6042487 U JP6042487 U JP 6042487U JP 6042487 U JP6042487 U JP 6042487U JP S63166403 U JPS63166403 U JP S63166403U
Authority
JP
Japan
Prior art keywords
eccentric hole
hole
utility
rotary drill
model registration
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
JP6042487U
Other languages
Japanese (ja)
Other versions
JPH072179Y2 (en
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 filed Critical
Priority to JP1987060424U priority Critical patent/JPH072179Y2/en
Priority to DE3788094T priority patent/DE3788094T2/en
Priority to EP87307570A priority patent/EP0260026B1/en
Priority to KR1019870009525A priority patent/KR910001814B1/en
Publication of JPS63166403U publication Critical patent/JPS63166403U/ja
Application granted granted Critical
Publication of JPH072179Y2 publication Critical patent/JPH072179Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Drilling Tools (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Description

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

図面は本考案に係るコンクリート穿孔用回転ド
リルの一実施例を示し、第１図は同全体斜視図、
第２図は同断面図、第３図は取付穿孔状態を説明
する断面図、第４図は他例を示す要部断面図であ
る。 １……ドリル、２……シヤンク軸、３……切削
部材、４……取付部、５……矩形外形部、６……
縮径部、７……コンクリート穿孔機、２１……媒
体通孔、３１……外周面、３２，３７……偏心孔
、３３，３８……逃がし溝。 The drawings show an embodiment of a rotary drill for drilling concrete according to the present invention, and FIG. 1 is an overall perspective view of the same;
FIG. 2 is a sectional view of the same, FIG. 3 is a sectional view illustrating the mounting hole state, and FIG. 4 is a sectional view of a main part showing another example. DESCRIPTION OF SYMBOLS 1...Drill, 2...Shank shaft, 3...Cutting member, 4...Mounting part, 5...Rectangular outer shape part, 6...
Reduced diameter part, 7... Concrete drilling machine, 21... Medium hole, 31... Outer peripheral surface, 32, 37... Eccentric hole, 33, 38... Escape groove.

Claims (1)

【実用新案登録請求の範囲】 (1) シヤンク軸先端に外面に切刃を有する柱状
の切削部材が設けられ、切削部材には軸心から偏
位してシヤンク軸の媒体孔を連通する偏心孔が開
口されているとともに偏心孔から離れた外周面に
逃がし溝が設けられているコンクリート穿孔用回
転ドリル。 (2) 実用新案登録請求の範囲第１項記載のもの
において、逃がし溝が偏心孔の約２倍の大きさに
設けられているコンクリート穿孔用回転ドリル。[Claims for Utility Model Registration] (1) A column-shaped cutting member having a cutting edge on the outer surface is provided at the tip of the shank shaft, and the cutting member has an eccentric hole that is offset from the axis and communicates with the medium hole of the shank shaft. A rotary drill for drilling concrete that is open and has an escape groove on the outer circumferential surface away from the eccentric hole. (2) A rotary drill for drilling concrete as described in Claim 1 of the Utility Model Registration Claim, in which the relief groove is approximately twice the size of the eccentric hole.
JP1987060424U 1986-08-29 1987-04-21 Rotary drill for concrete drilling Expired - Lifetime JPH072179Y2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP1987060424U JPH072179Y2 (en) 1987-04-21 1987-04-21 Rotary drill for concrete drilling
DE3788094T DE3788094T2 (en) 1986-08-29 1987-08-26 Drill.
EP87307570A EP0260026B1 (en) 1986-08-29 1987-08-26 Drill
KR1019870009525A KR910001814B1 (en) 1986-08-29 1987-08-29 Drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987060424U JPH072179Y2 (en) 1987-04-21 1987-04-21 Rotary drill for concrete drilling

Publications (2)

Publication Number Publication Date
JPS63166403U true JPS63166403U (en) 1988-10-28
JPH072179Y2 JPH072179Y2 (en) 1995-01-25

Family

ID=30892824

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987060424U Expired - Lifetime JPH072179Y2 (en) 1986-08-29 1987-04-21 Rotary drill for concrete drilling

Country Status (1)

Country Link
JP (1) JPH072179Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11165313A (en) * 1997-12-04 1999-06-22 Nachi Fujikoshi Corp Diamond electrodeposited drill

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5964216U (en) * 1982-10-25 1984-04-27 東芝タンガロイ株式会社 drill for tiles
JPS6087650U (en) * 1983-11-24 1985-06-15 東急建設株式会社 drill bit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5964216U (en) * 1982-10-25 1984-04-27 東芝タンガロイ株式会社 drill for tiles
JPS6087650U (en) * 1983-11-24 1985-06-15 東急建設株式会社 drill bit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11165313A (en) * 1997-12-04 1999-06-22 Nachi Fujikoshi Corp Diamond electrodeposited drill

Also Published As

Publication number Publication date
JPH072179Y2 (en) 1995-01-25

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