JPS5986909U

JPS5986909U - hole saw

Info

Publication number: JPS5986909U
Application number: JP18392582U
Authority: JP
Inventors: 直樹池田; 譲池田
Original assignee: 株式会社イケダ
Priority date: 1982-12-03
Filing date: 1982-12-03
Publication date: 1984-06-12

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図乃至第４図は本考案の一実施例を示し、第１図は
全体正面図、第２図は同底面図、第３図は要部縦側断面
図、第４図は第３図のＡ−Ａ線矢視麟面図、第５図乃至
第７図の各図は心出し部の他側を示す底面図である。１・・・ホールソー、２・・・本体、３・・・シャンク
、４　　　　　“・・・心出し体、５・・・被加工物、
６・・・穴、７・・・刃部、８．２１・・・切れ刃、９
，２０・・・テーパー面、１７・・・心出し部、２２・
・・切れ屑。1 to 4 show one embodiment of the present invention, in which FIG. 1 is an overall front view, FIG. 2 is a bottom view, FIG. 3 is a vertical sectional view of main parts, and FIG. The vertical view taken along the line A--A in the figure, and each of the figures in FIGS. 5 to 7 are bottom views showing the other side of the centering portion. DESCRIPTION OF SYMBOLS 1... Hole saw, 2... Main body, 3... Shank, 4 "... Centering body, 5... Workpiece,
6... Hole, 7... Blade section, 8.21... Cutting edge, 9
, 20... Tapered surface, 17... Centering portion, 22...
...Swarf.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

・本体外周部に、下方に突出し本体の回転により被加工
物内に侵入して被加工物に本体軸心と同心の穴を切削す
る刃部を周方向等間隔に複数備え、“　　　本体中心部
に、刃部よりも下方に突出し本体の回転により外周の切
れ刃で切削しつつ被加工物内に侵入ザる心出し部とを備
えたホールソーにおいて、刃部内周面を、下方に向うに
従って本体径方向外方側に位置するテーパー面とし、心
出し部外周１面を、下方に向うに従って本体軸心に接近
するテーパー面としたことを特徴とするホールソー。・The outer periphery of the main body is equipped with multiple blades at equal intervals in the circumferential direction that protrude downward and penetrate into the workpiece as the main body rotates to cut holes in the workpiece that are concentric with the axis of the main body. In a hole saw that has a centering part that protrudes downward from the blade part and penetrates into the workpiece while cutting with the cutting edge on the outer periphery as the main body rotates, the inner circumferential surface of the blade part is A hole saw characterized in that the tapered surface is located on the outer side in the radial direction, and one surface of the outer periphery of the centering portion is a tapered surface that approaches the axis of the main body as it goes downward.