JPS6292113U

JPS6292113U -

Info

Publication number: JPS6292113U
Application number: JP18219585U
Authority: JP
Priority date: 1985-11-28
Filing date: 1985-11-28
Publication date: 1987-06-12

Description

[Brief explanation of the drawing]

図面はこの考案の１実施例の説明図であり、第
１図は全体概略側面図、第２図は同ヘツドの上面
図、第３図は第２図拡大平面図、第４図は第３図
側面図、第５図はヘツドの回り止めキーの側面図
、第６図は同正面図、第７図はドリル本体の側面
図、第８図は同平面図、第９図はドリル本体の上
部断面図、第１０図は抜け止めネジ穴の断面図、
第１１図は第７図は―断面図である。６……シヤンク、３……ドリル本体、４……切
刃部、５……ヘツド、１……ドリル、８……回り
止めキー、１０……抜止めねじ座、１１……イン
ロー部、１３……回り止めネジ穴。 The drawings are explanatory diagrams of one embodiment of this invention, in which Fig. 1 is an overall schematic side view, Fig. 2 is a top view of the same head, Fig. 3 is an enlarged plan view of Fig. 2, and Fig. 4 is a third Fig. 5 is a side view of the locking key of the head, Fig. 6 is a front view of the same, Fig. 7 is a side view of the drill body, Fig. 8 is a plan view of the drill body, and Fig. 9 is a side view of the drill body. A cross-sectional view of the top, Figure 10 is a cross-sectional view of the retaining screw hole,
FIG. 11 and FIG. 7 are cross-sectional views. 6...Shank, 3...Drill body, 4...Cutting blade section, 5...Head, 1...Drill, 8...Stopping key, 10...Removal locking screw seat, 11...Pilot part, 13 ... Locking screw hole.

Claims

[Claims for Utility Model Registration] (1) In a drill structure in which a cemented carbide head with a cutting edge is provided on a drill body integrally formed with the shank, the drill body and head are separate bodies. The head is integrally formed with a locking key having a locking screw seat, while the drill body is formed with a spigot portion for the locking key and a locking screw hole. drill structure. (2) The drill structure according to claim 1, wherein the locking key and the spigot part are formed in a minus shape. (3) The drill structure according to claim 1 of the above-mentioned utility model registration claim, characterized in that a bar having a locking screw seat formed therein extends integrally with the locking key. (4) The drill structure according to claim 3 of the above-mentioned utility model registration, wherein the bar is formed in a cylindrical shape.