JPS6330414U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図および第２図は本考案の一実施例を示す
図であつて、第１図はその側面図、第２図は第１
図中―線に沿う矢視断面図、第３図ないし第
５図は従来の穴明け工具の一例を示す側面図、第
６図は第５図に示す穴明け工具の切屑の流れを示
す断面図である。 ５１……穴明け工具、５３……工具本体、５５
……切屑排出溝、５９……切削油供給孔、６１…
…開口部、６３……面取り状の面。 1 and 2 are views showing one embodiment of the present invention, in which FIG. 1 is a side view thereof, and FIG. 2 is a side view thereof.
In the figure, a cross-sectional view taken along the line, Figures 3 to 5 are side views showing an example of a conventional drilling tool, and Figure 6 is a cross-sectional view showing the flow of chips from the drilling tool shown in Figure 5. It is a diagram. 51... Drilling tool, 53... Tool body, 55
...Chip discharge groove, 59...Cutting oil supply hole, 61...
...Opening portion, 63... Chamfered surface.

補正 昭６１．１１．１４ 図面の簡単な説明を次のように補正する。 明細書第８頁第１行に記載の「―線に沿う
矢視断面図、」の後に以下の文を加入する。 「第３図ないし第７図は本考案の他の実施例を
示す図であつて、第３図はその軸線方向先端視図
、第４図はその側面図、第５図は第４図中―
線に沿う矢視断面図、第６図は第４図に示す工具
を軸線回りに１８０度回転させた状態を示す側面
図、第７図は第６図中―線に沿う矢視断面図
、」 明細書第８頁第１行から第２行に記載の「第３
図ないし第５図」を「第８図ないし第１０図」と
訂正する。 明細書第８頁第２行から第３行に記載の「第６
図は第５図に示す」を「第１１図は第１０図に示
す」と訂正する。 明細書第８頁第７行に記載の「６３……面取り
状の面。」を以下のように訂正する。 「６３……面取り状の面、７１……穴明け工具
、７３……工具本体、７７……切屑排出溝、９３
……切削油供給孔、９５……開口部、９７……面
取り状の面、１０１……切削油供給孔、１０３…
…開口部、１０５……面取り状の面。」Amendment November 14, 1981 The brief description of the drawing is amended as follows. The following sentence is added after "cross-sectional view taken along line -" in the first line of page 8 of the specification. ``Figures 3 to 7 are views showing other embodiments of the present invention, in which Figure 3 is a top view in the axial direction, Figure 4 is a side view, and Figure 5 is a middle view of Figure 4. ―
6 is a side view showing the tool shown in FIG. 4 rotated 180 degrees around the axis; FIG. 7 is a sectional view taken along the line in FIG. 6; ” “Third
"Figures 8 to 10" are corrected to ``Figures 8 to 10.'' ``No. 6'' described on page 8, line 2 to line 3 of the specification
"The figure is shown in FIG. 5" is corrected to "FIG. 11 is shown in FIG. 10.""63... Chamfered surface." stated in page 8, line 7 of the specification is corrected as follows. "63... Chamfered surface, 71... Drilling tool, 73... Tool body, 77... Chip discharge groove, 93
... Cutting oil supply hole, 95 ... Opening, 97 ... Chamfered surface, 101 ... Cutting oil supply hole, 103 ...
...Opening portion, 105... Chamfered surface. ”

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 工具本体先端から後端に向つて切屑排出溝が設
けられ、この切屑排出溝の回転方向と反対の方向
を向く壁面に切削油供給孔の開口部が設けられた
穴明け工具において、前記切削油供給孔の内壁と
前記開口部の前記工具本体外周側に隣接する前記
壁面との稜線部に面取り状の面を形成したことを
特徴とする穴明け工具。 A drilling tool in which a chip discharge groove is provided from the tip of the tool body toward the rear end, and an opening for a cutting oil supply hole is provided in a wall facing in a direction opposite to the rotational direction of the chip discharge groove. A drilling tool characterized in that a chamfered surface is formed on a ridgeline between an inner wall of the supply hole and the wall surface of the opening adjacent to the outer peripheral side of the tool body.