JPS5839628U - Abacus bead boring device - Google Patents
Abacus bead boring deviceInfo
- Publication number
- JPS5839628U JPS5839628U JP13274381U JP13274381U JPS5839628U JP S5839628 U JPS5839628 U JP S5839628U JP 13274381 U JP13274381 U JP 13274381U JP 13274381 U JP13274381 U JP 13274381U JP S5839628 U JPS5839628 U JP S5839628U
- Authority
- JP
- Japan
- Prior art keywords
- cutting blade
- abacus bead
- boring device
- outer diameter
- cutter
- 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
Landscapes
- Cutting Tools, Boring Holders, And Turrets (AREA)
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
第１図は従来のそろばん珠の断面図、第２図は本考案装
置によって作られるべきそろばん珠の断面図、第３図、
第４図は本考案装置の構造及びその使用状態を示す要部
断面図、第５図Ａ、 Ｂはともにカッター下端面の形状
と作動状態を示す底面図である。
′３・・・忘物、４・・・そろばん珠、５・・・孔、６
・・・凹所、７ａ、 ７ｂ・・・摺接部、１０・・・カ
ッター、１１・・・挿入棒、１２・・・切削刃、１□３
・・・スリット、１４・・・挿入孔、１５・・・段部、
１６・・・エツジ部、１７・・・逃がし面。Figure 1 is a sectional view of a conventional abacus bead, Figure 2 is a sectional view of an abacus bead to be made by the device of the present invention, and Figure 3.
FIG. 4 is a sectional view of a main part showing the structure of the device of the present invention and its operating condition, and FIGS. 5A and 5B are bottom views showing the shape of the lower end surface of the cutter and its operating condition. '3...Lost item, 4...Abacus beads, 5...Hole, 6
... recess, 7a, 7b... sliding contact part, 10... cutter, 11... insertion rod, 12... cutting blade, 1□3
...Slit, 14...Insertion hole, 15...Step part,
16... Edge portion, 17... Relief surface.
Claims (1)
べき凹所６の断面形状に対応する複数個□の切削刃１２
を分割又は分離して等角度間隔に先端周面に突出せしめ
且つ上記切削刃１２の外径が遠心方向に拡矢及び縮小が
可能な如（設けた棒状のカッター１０と、該カッター１
０の端面から挿入して上記切削刃１２の外径を拡大縮小
せしめる先細のテーパーを付した挿入棒１１とからなる
そろばん珠の中ぐり装置。A plurality of □ cutting blades 12 corresponding to the cross-sectional shape of the recess 6 to be formed on the inner periphery of the intermediate portion of the hole 5 for inserting the core piece of the abacus bead 4.
The cutting blade 12 is divided or separated so as to protrude from the tip circumferential surface at equal angular intervals, and the outer diameter of the cutting blade 12 can be expanded and contracted in the centrifugal direction (the rod-shaped cutter 10 provided and the cutter 1
An abacus bead boring device comprising a tapered insertion rod 11 which is inserted from the end face of the cutting blade 12 to enlarge or reduce the outer diameter of the cutting blade 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13274381U JPS5839628U (en) | 1981-09-07 | 1981-09-07 | Abacus bead boring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13274381U JPS5839628U (en) | 1981-09-07 | 1981-09-07 | Abacus bead boring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5839628U true JPS5839628U (en) | 1983-03-15 |
| JPS616494Y2 JPS616494Y2 (en) | 1986-02-27 |
Family
ID=29926257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13274381U Granted JPS5839628U (en) | 1981-09-07 | 1981-09-07 | Abacus bead boring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5839628U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6094141U (en) * | 1983-12-06 | 1985-06-27 | タイガー魔法瓶株式会社 | liquid container |
| JPS61194456U (en) * | 1985-05-27 | 1986-12-03 | ||
| JPS61194457U (en) * | 1985-05-27 | 1986-12-03 |
-
1981
- 1981-09-07 JP JP13274381U patent/JPS5839628U/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6094141U (en) * | 1983-12-06 | 1985-06-27 | タイガー魔法瓶株式会社 | liquid container |
| JPH0228850Y2 (en) * | 1983-12-06 | 1990-08-02 | ||
| JPS61194456U (en) * | 1985-05-27 | 1986-12-03 | ||
| JPS61194457U (en) * | 1985-05-27 | 1986-12-03 | ||
| JPH0240930Y2 (en) * | 1985-05-27 | 1990-10-31 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS616494Y2 (en) | 1986-02-27 |
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