JPH01161004U - - Google Patents
Info
- Publication number
- JPH01161004U JPH01161004U JP2706689U JP2706689U JPH01161004U JP H01161004 U JPH01161004 U JP H01161004U JP 2706689 U JP2706689 U JP 2706689U JP 2706689 U JP2706689 U JP 2706689U JP H01161004 U JPH01161004 U JP H01161004U
- Authority
- JP
- Japan
- Prior art keywords
- main body
- guide groove
- wedge center
- cutting edge
- inclined guide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005553 drilling Methods 0.000 claims 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Drilling And Boring (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Description
第１図はこの考案の実施例を示す一部を欠除し
た正面図、第２図は同要部の一部側面図、第３図
ａ，ｂ，ｃ並びに第４図ａ，ｂ，ｃは動作説明図
、第５図は第２実施例を示す一部を欠除した正面
図、第６図は加工孔形断面図、第７図は第３実施
例を示す一部を欠除した正面図である。
１……本体、２……シヤンク、３……中空部、
４……ウエツジセンタ、５……圧縮ばね、６……
張出顎、７……ストツプリング、８……長孔、９
……ピン、１０……板片、１１……切刃、１２…
…ガイド溝、１３……スペーサ、１４……ボール
ベアリング、１５……バランス調整ばね。
Fig. 1 is a partially cutaway front view showing an embodiment of this invention, Fig. 2 is a side view of a portion of the same essential parts, Figs. 3 a, b, c, and 4 a, b, c. is an explanatory diagram of the operation, FIG. 5 is a front view with a part removed showing the second embodiment, FIG. 6 is a cross-sectional view of the machined hole shape, and FIG. 7 is a partially cut-out view showing the third embodiment. It is a front view. 1...Main body, 2...Shank, 3...Hollow part,
4... Wedge center, 5... Compression spring, 6...
Overhanging jaw, 7...Stop spring, 8...Long hole, 9
... Pin, 10 ... Plate piece, 11 ... Cutting blade, 12 ...
...Guide groove, 13...Spacer, 14...Ball bearing, 15...Balance adjustment spring.
Claims (1)
つ軸心方向にばねの付勢下に移動可能にウエツジ
センタを挿着し、該ウエツジセンタを本体外周に
緩挿したストツプリングに一体結合し、本体下部
に、本体の削成加工により対向して形成した適宜
の弾力を有する一対の板片の下端に切刃を設け、
該切刃をウエツジセンタ下端部に設けた張出顎の
傾斜ガイド溝に係合させ、傾斜ガイド溝に沿つて
の下方への移動で張出顎外方に突出するように構
成したことを特徴とする拡径孔部削成装置。 A wedge center is inserted into a hollow part provided in the main body so that it can rotate together with the main body and can move in the axial direction under the bias of a spring, and the wedge center is integrally connected to a stop ring that is loosely inserted around the outer periphery of the main body. A cutting edge is provided at the lower end of a pair of plate pieces having appropriate elasticity that are formed facing each other by cutting the main body at the lower part,
The cutting edge is configured to engage with an inclined guide groove of an overhanging jaw provided at the lower end of the wedge center, and to project outward from the overhanging jaw by moving downward along the inclined guide groove. Diameter expansion hole drilling device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989027066U JPH0411766Y2 (en) | 1989-03-08 | 1989-03-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989027066U JPH0411766Y2 (en) | 1989-03-08 | 1989-03-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01161004U true JPH01161004U (en) | 1989-11-08 |
| JPH0411766Y2 JPH0411766Y2 (en) | 1992-03-24 |
Family
ID=31249250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989027066U Expired JPH0411766Y2 (en) | 1989-03-08 | 1989-03-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0411766Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2862807B2 (en) * | 1995-02-28 | 1999-03-03 | 株式会社ミヤナガ | Drilling device for holes with undercuts |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5850855A (en) * | 1981-09-22 | 1983-03-25 | Fujitsu Ltd | Picture processing system |
-
1989
- 1989-03-08 JP JP1989027066U patent/JPH0411766Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5850855A (en) * | 1981-09-22 | 1983-03-25 | Fujitsu Ltd | Picture processing system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0411766Y2 (en) | 1992-03-24 |