JPS615513U

JPS615513U - drilling drill device

Info

Publication number: JPS615513U
Application number: JP9093984U
Authority: JP
Inventors: 直樹池田
Original assignee: Individual
Current assignee: Individual
Priority date: 1984-06-18
Filing date: 1984-06-18
Publication date: 1986-01-14
Also published as: JPS6314973Y2

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

[Brief explanation of the drawing]

第１図は本考案の実施例に係る穿孔錐装置の縦断面図、
第２図は同分解斜視図、第３図は同背面図、第４図イは
他の実施例に係る保合部の平面図、第４図町よ同要部縦
断面図、第５図イは従来例に係る穿孔錐装置の縦断面図
、第５図町よ同抑圧体の斜視図、第５図ハは同シャンク
ホルダーの斜視図である。２・・・筒体、３・・・切刃、５・・・シャンク｛５ｂ
・・・中途部｝、１３・・・係合部、１５・・・シャン
クホルダー、１９・・・拡開リング｛１９ａ・・・フラ
ンジ｝、２１・・・凹溝、２４，２６・・・テーパ面、
２５・・・押圧体。FIG. 1 is a longitudinal sectional view of a drilling drill device according to an embodiment of the present invention;
Figure 2 is an exploded perspective view of the same, Figure 3 is a rear view of the same, Figure 4 A is a plan view of a retaining part according to another embodiment, Figure 4 is a vertical sectional view of the same main part, Figure 5 FIG. 5A is a vertical sectional view of a conventional drilling drill device, FIG. 5 is a perspective view of the suppressor, and FIG. 5C is a perspective view of the shank holder. 2... Cylindrical body, 3... Cutting blade, 5... Shank {5b
... midway part}, 13... engaging part, 15... shank holder, 19... expansion ring {19a... flange}, 21... concave groove, 24, 26... tapered surface,
25... Pressing body.

Claims

[Scope of utility model registration request]

Cutting blades 3 are provided at both ends of the cylinder 2 to protrude from the end face of the cylinder 2, and a ring 19 that has a flange 19a that comes into contact with the rear end face of the cylinder 2 and is expandable and contractible in the radial direction is attached to the cylinder 2. The ring 19 is fitted with a tapered surface 24.2 at the inner peripheral position.
6 is formed, and a concave groove 21 is formed in the flange 19a so that the cutting blade 3 is located inside to avoid interference with the cutting blade 3, and a shank halter 15 that comes into contact with the rear end surface of the ring 19 is formed. Through this, a shank 5 having an axially immovable engagement part 13 in the middle part 5b is inserted into and removed from the cylindrical body 2 on the same axis, and a suppressor 25 screwed into the tip of the shank 5 allows the above-mentioned Via the tapered surfaces 24 and 26,
A drilling drill device characterized in that the shank 5 and the cylinder 2 are brought into pressure contact by pressing the inner circumferential surface of the cylinder 2 and the engaging part 13.