JPH0271604U

JPH0271604U -

Info

Publication number: JPH0271604U
Application number: JP15156288U
Authority: JP
Priority date: 1988-11-21
Filing date: 1988-11-21
Publication date: 1990-05-31
Anticipated expiration: 2003-11-21
Also published as: JPH0614964Y2

Description

[Brief explanation of drawings]

添付図面の第１図ないし第６図は、本考案木工
用ドリルの実施例を示すもので、第１図は切削状
態を示す縦断面図、第２図は正面図、第３図は側
面図、第４図は底面図、第５図、第６図はそれぞ
れ別の実施例を示すもので一部切断の正面図、第
７図は本考案木工用ドリルの使用例を示す正面図
、第８図、第９図はそれぞれ従来の木工用ドリル
による穿孔状態を示す正面図、である。１……ドリル本体、１ａ，１ａ′……長尺部材
、１ｂ，１ｂ′……先端部材、２……切削刃、３
……リード、５……切削刃、６……突出部、７…
…連通孔、１０……通気孔、１５……ベース片、
１６……外周片。 Figures 1 to 6 of the accompanying drawings show an embodiment of the woodworking drill of the present invention, in which Figure 1 is a longitudinal sectional view showing the cutting state, Figure 2 is a front view, and Figure 3 is a side view. , FIG. 4 is a bottom view, FIGS. 5 and 6 are partially cutaway front views showing different embodiments, and FIG. 7 is a front view showing an example of use of the woodworking drill of the present invention. FIG. 8 and FIG. 9 are front views showing the state of drilling with a conventional woodworking drill, respectively. 1... Drill body, 1a, 1a'... Long member, 1b, 1b'... Tip member, 2... Cutting blade, 3
... Lead, 5 ... Cutting blade, 6 ... Protrusion, 7 ...
...Communication hole, 10...Vent hole, 15...Base piece,
16...Outer peripheral piece.

Claims

[Claims for Utility Model Registration] 1. Drill body 1 with lead 3 formed on the outer peripheral surface
A cutting blade 2 is provided at the tip of the hole to cut the peripheral part of the hole between the outer diameter D and the inner diameter d in an annular shape. Woodworking characterized in that a cutting blade 5 is provided, and a communication hole 7 is provided between the cutting blade 2 and the cutting blade 5 through which cutting waste generated by the cutting blade 5 freely passes toward the lead 3 on the outer periphery. Doruru for. 2. The woodworking drill according to claim 1, wherein a vent hole 10 is provided in the center of the drill body 1, communicating from the base end to the tip, opening near the cutting blade 5, and for blowing out pressurized air. 3. The drill body 1 includes a long member 1a having a small-diameter protrusion 6 formed at the tip and a cutting blade 5 at the tip, and a tip member 1b having a cutting blade 2 at the tip and a communicating hole 7 in the peripheral wall. consisting of an elongated member 1a and a distal end member 1b.
3. The woodworking drill according to claim 1, wherein the drill is detachable. 4. The drill body 1 is composed of a long member 1a' having a lead 3 formed on its outer periphery, and a tip member 1b' having cutting blades 2 and 5, and the long member 1a' and tip member 1b' can be attached and detached. Claim 1 that is free
Or the woodworking drill described in 2. 5. The tip member 1b' is detachably attached to the elongated member 1a', and is fitted into a base piece 15 having a protrusion 6 with a narrow diameter d and a cutting blade 5 provided at the tip, and the protrusion of the base piece 15, 5. The woodworking drill according to claim 4, wherein the woodworking drill comprises a peripheral piece 16 having a cutting edge 2 at its tip, and the base piece 15 and the peripheral piece 16 are detachable. 6 The drill body beyond the cutting edge 5 is connected to the lead 3.
6. A woodworking drill according to claim 1, wherein a cutting blade 2 is provided at the tip of the reed to cut out the entire valley of the reed to form a communicating hole.