JPS6135709U - Drill for printed circuit board - Google Patents

Drill for printed circuit board

Info

Publication number
JPS6135709U
JPS6135709U JP11974684U JP11974684U JPS6135709U JP S6135709 U JPS6135709 U JP S6135709U JP 11974684 U JP11974684 U JP 11974684U JP 11974684 U JP11974684 U JP 11974684U JP S6135709 U JPS6135709 U JP S6135709U
Authority
JP
Japan
Prior art keywords
drill
printed circuit
circuit board
rotation
outer periphery
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
JP11974684U
Other languages
Japanese (ja)
Inventor
正義 矢田部
辰郎 福田
Original Assignee
住友電気工業株式会社
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 住友電気工業株式会社 filed Critical 住友電気工業株式会社
Priority to JP11974684U priority Critical patent/JPS6135709U/en
Publication of JPS6135709U publication Critical patent/JPS6135709U/en
Pending legal-status Critical Current

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  • Drilling Tools (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 drawings]

第１図は、本考案のドリルの端面視形状を示す図、第２
図は従来ドリルの端面視形状を示す図である。 １・・・ウエブ、２′・・・切刃、３・・・チゼル刃、
４・・・マージン部、５・・・リップコーナ、６・・・
ねじれ溝。FIG. 1 is a diagram showing the end view shape of the drill of the present invention, and FIG.
The figure is a diagram showing an end view shape of a conventional drill. 1... Web, 2'... Cutting blade, 3... Chisel blade,
4... Margin part, 5... Lip corner, 6...
Twisted groove.

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１） 端面視における切刃を回転方向に凹となる向
きに彎曲させ、その刃の外周点と回転中心とを結ぶ線に
対する切刃外周部の傾き角を回転方向に正の角度又は接
線角としたことを特徴とするプリント基板用ドリル。(1) The cutting edge is curved in a concave direction in the direction of rotation when viewed from the end, and the inclination angle of the outer periphery of the cutting edge with respect to the line connecting the outer periphery of the blade and the center of rotation is a positive angle or tangential angle in the direction of rotation. A drill for printed circuit boards characterized by the following. （２）上記切角外周部の傾き角を０〜３０゜の範囲に設
定したことを特徴とする実用新案登録請求の範囲第｛１
｝項記載のプリント基板用ドリル。(2) Utility model registration claim No.
} Drill for printed circuit boards as described in section.
JP11974684U 1984-07-31 1984-07-31 Drill for printed circuit board Pending JPS6135709U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11974684U JPS6135709U (en) 1984-07-31 1984-07-31 Drill for printed circuit board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11974684U JPS6135709U (en) 1984-07-31 1984-07-31 Drill for printed circuit board

Publications (1)

Publication Number Publication Date
JPS6135709U true JPS6135709U (en) 1986-03-05

Family

ID=30678609

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11974684U Pending JPS6135709U (en) 1984-07-31 1984-07-31 Drill for printed circuit board

Country Status (1)

Country Link
JP (1) JPS6135709U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009000806A (en) * 2007-05-23 2009-01-08 Ｎｅｘｔ Ｉ＆Ｄ株式会社 Drill

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009000806A (en) * 2007-05-23 2009-01-08 Ｎｅｘｔ Ｉ＆Ｄ株式会社 Drill

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