KR880010851A - drill - Google Patents

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Publication number
KR880010851A
KR880010851A KR1019880000341A KR880000341A KR880010851A KR 880010851 A KR880010851 A KR 880010851A KR 1019880000341 A KR1019880000341 A KR 1019880000341A KR 880000341 A KR880000341 A KR 880000341A KR 880010851 A KR880010851 A KR 880010851A
Authority
KR
South Korea
Prior art keywords
drill
oil supply
supply hole
main body
section
Prior art date
Application number
KR1019880000341A
Other languages
Korean (ko)
Other versions
KR940011175B1 (en
Inventor
고우지로우 이마나가
히데지 호소노
마사가쓰 아카즈
Original Assignee
나가노 다께시
미쓰비시 긴소꾸 가부시기가이샤
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
Priority claimed from JP62049560A external-priority patent/JPS63216611A/en
Application filed by 나가노 다께시, 미쓰비시 긴소꾸 가부시기가이샤 filed Critical 나가노 다께시
Publication of KR880010851A publication Critical patent/KR880010851A/en
Application granted granted Critical
Publication of KR940011175B1 publication Critical patent/KR940011175B1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/02—Twist drills

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)

Abstract

내용 없음No content

Description

드 릴drill

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 본 발명의 제1실시예를 표시한 그림이고 제6도와 같은 모양의 위치의 단면도.1 is a view showing a first embodiment of the present invention and a cross-sectional view of the position as shown in FIG.

제2도는 동실시예에 있어서 다른 급유구멍의 형상을 표시한 단면도.2 is a cross-sectional view showing the shape of another oil supply hole in the embodiment.

제3도는 본 발명의 제2실시예를 표시한 그림이고 제6도와 같은 모양의 위치의 단면도.3 is a view showing a second embodiment of the present invention and a cross-sectional view of the position as shown in FIG.

제4도는 동 실시예에 있어서 다른 급유구멍의 형상을 표시한 단면도.4 is a cross-sectional view showing the shape of another oil supply hole in the embodiment.

Claims (1)

단면이 원형상의 대금본체의 바깥둘레면에 둘레방향으로 같은 간격으로 2개의 절설배출홈이 앞끝에서 뒷끝으로 향해서 형성되는 동시에, 전기한 대금본체의 축방향으로 급유구멍이 형성된 대금과, 이 대금의 앞 끝에 설치된 솔리드팁을 비치한 드릴에 있어서 전기한 급유구멍을 단면이 긴 원형상으로 형성된 것을 특징으로 하는 드릴.A section in which two cutout discharge grooves are formed from the front end to the rear end at equal intervals in the circumferential direction on the outer circumferential surface of the circular billet main body, and the oil supply hole is formed in the axial direction of the billet main body; A drill having a solid tip installed at the front end, wherein the oil supply hole is formed in a circular shape having a long cross section. ※참고사항:최초출원 내용에 의하여 공개하는 것임.※ Note: This is to be disclosed based on the first application.
KR1019880000341A 1987-03-04 1988-01-18 Drill KR940011175B1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP62049560A JPS63216611A (en) 1987-03-04 1987-03-04 Drill
JP4955887 1987-03-04
JP62-49558 1987-03-04
JP49560 1987-03-04
JP49558 1987-03-04

Publications (2)

Publication Number Publication Date
KR880010851A true KR880010851A (en) 1988-10-25
KR940011175B1 KR940011175B1 (en) 1994-11-26

Family

ID=26389968

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880000341A KR940011175B1 (en) 1987-03-04 1988-01-18 Drill

Country Status (1)

Country Link
KR (1) KR940011175B1 (en)

Also Published As

Publication number Publication date
KR940011175B1 (en) 1994-11-26

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E902 Notification of reason for refusal
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E701 Decision to grant or registration of patent right
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee