JPH0344506U - - Google Patents
Info
- Publication number
- JPH0344506U JPH0344506U JP10452789U JP10452789U JPH0344506U JP H0344506 U JPH0344506 U JP H0344506U JP 10452789 U JP10452789 U JP 10452789U JP 10452789 U JP10452789 U JP 10452789U JP H0344506 U JPH0344506 U JP H0344506U
- Authority
- JP
- Japan
- Prior art keywords
- attached
- bushing
- workpiece
- pressing
- bush
- 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.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Drilling And Boring (AREA)
Description
第１図は、本考案プレツシヤーフツト用のブツ
シユをスピンドルに取付けた穴あけ状態の概念的
な説明図、第２図ａ，ｂは、プレツシヤーフツト
用のブツシユを拡大して示す図で、第２図ａは、
一部を切欠した正面図、第２図ｂは、その下面図
、第３図ａ，ｂは、従来のプレツシヤーフツト用
のブツシユを拡大して示す図で、第３図ａは、一
部を切欠した正面図、第３図ｂは、その下面図、
第４図ａ，ｂは、同じく従来のプレツシヤーフツ
ト用のブツシユを拡大して示す図で、第４図ａは
、一部を切欠した正面図、第４図ｂは、その下面
図である。
１…スピンドル、２…ドリル、３…プレツシヤ
ーフツト、５…ブツシユ、８…環状当接面、９…
吸入溝。
Fig. 1 is a conceptual explanatory diagram of the state in which the bush for the presser shaft of the present invention is attached to the spindle and is drilled, and Figs. 2 a and b are enlarged views of the bush for the presser shaft of the present invention. , Figure 2a is
FIG. 2b is a partially cutaway front view, FIG. Fig. 3b is a bottom view of the
Figures 4a and 4b are enlarged views of a conventional bushing for a pressure shaft. Figure 4a is a partially cutaway front view, and Figure 4b is a bottom view. be. DESCRIPTION OF SYMBOLS 1... Spindle, 2... Drill, 3... Pressure shaft, 5... Bush, 8... Annular contact surface, 9...
Suction groove.
Claims (1)
けられ、しかもプリント基板の被加工物７を押圧
固定できるようにしたプレツシヤーフツト用ブツ
シユにおいて、 前記ブツシユは、リング状を呈する高硬度セラ
ミツクスからなり、しかも被加工物７に対する環
状当接面８には、外周部から内周部に向かう方向
でうず巻き状をなし、その横断面が押圧方向で拡
がる台形を呈する吸入溝９が形成されていること
を特徴とするプレツシヤーフツト用のブツシユ。[Claims for Utility Model Registration] A presser shaft bushing that is attached to one end of a spindle 1 on which a drill 2 is attached and is capable of pressing and fixing a printed circuit board workpiece 7, the bushing having a ring shape. The annular contact surface 8 for the workpiece 7 has a suction groove that is spiral in the direction from the outer periphery to the inner periphery and has a trapezoidal cross section that widens in the pressing direction. A bush for a pressure shaft, characterized in that a number 9 is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10452789U JPH0344506U (en) | 1989-09-06 | 1989-09-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10452789U JPH0344506U (en) | 1989-09-06 | 1989-09-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0344506U true JPH0344506U (en) | 1991-04-25 |
Family
ID=31653320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10452789U Pending JPH0344506U (en) | 1989-09-06 | 1989-09-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0344506U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006263864A (en) * | 2005-03-24 | 2006-10-05 | Fujitsu Ltd | Bush for drilling |
-
1989
- 1989-09-06 JP JP10452789U patent/JPH0344506U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006263864A (en) * | 2005-03-24 | 2006-10-05 | Fujitsu Ltd | Bush for drilling |
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