JPH0352020U - - Google Patents
Info
- Publication number
- JPH0352020U JPH0352020U JP11315589U JP11315589U JPH0352020U JP H0352020 U JPH0352020 U JP H0352020U JP 11315589 U JP11315589 U JP 11315589U JP 11315589 U JP11315589 U JP 11315589U JP H0352020 U JPH0352020 U JP H0352020U
- Authority
- JP
- Japan
- Prior art keywords
- string
- drill
- spherical surface
- surface portion
- round
- 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
- 239000013013 elastic material Substances 0.000 claims description 2
- 239000011796 hollow space material Substances 0.000 claims 1
- 238000005452 bending Methods 0.000 description 1
Landscapes
- Milling, Broaching, Filing, Reaming, And Others (AREA)
Description
図面は本考案に係る紐鑢の実施例を示したもの
で第１図は斜視図、第２図は凸球面部をもつ丸鑢
単体の一部断面図斜視図、第３図は凹球面部をも
つ丸鑢単体の一部断面をもつ斜視図である。第４
図は紐鑢の縦断面図、第５図は横断面図、第６図
は紐鑢屈曲の際の最小曲げ半径の状態を示したも
のである。
１……弾性材製紐、３……凸球面部をもつ丸鑢
、４……凹球面部をもつ丸鑢。
The drawings show an embodiment of the cording chisel according to the present invention, and FIG. 1 is a perspective view, FIG. 2 is a partial cross-sectional perspective view of a single round chisel with a convex spherical surface, and FIG. 3 is a concave spherical surface. FIG. Fourth
The figure shows a longitudinal sectional view of the string, FIG. 5 shows a cross-sectional view, and FIG. 6 shows the state of the minimum bending radius when the string is bent. 1...String made of elastic material, 3...Round drill having a convex spherical surface, 4...Round drill having a concave spherical surface.
Claims (1)
方向に弾性材製紐１の表面形状（特願昭和６２年
第２６８９４６号）に見合い嵌合する星形配列の
Ｖ字形溝を複数条形成した中空材の外周に切削切
刃を形成し、なお軸直角側面に凸球面部３′を形
成した丸鑢３と、軸直角側面に凸球面部と同一軌
跡の凹球面部４′を形成した丸鑢４とを、前記弾
性材製紐１に交互に組合せ連通して構成した紐鑢
の改良。 A plurality of V-shaped grooves in a star-shaped arrangement are formed through the center of the round drill constituting the string drill and in the axial direction of the inner surface thereof, and are matched and fitted to the surface shape of the elastic string 1 (Japanese Patent Application No. 268946 of 1988). A cutting edge is formed on the outer periphery of the formed hollow material, and a round file 3 is formed with a convex spherical surface portion 3' on the side surface perpendicular to the axis, and a concave spherical surface portion 4' having the same trajectory as the convex spherical surface portion is formed on the side surface perpendicular to the axis. An improvement of a string drill constituted by alternately combining and communicating round drill holes 4 with the elastic material string 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11315589U JPH0751209Y2 (en) | 1989-09-27 | 1989-09-27 | Improvement of string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11315589U JPH0751209Y2 (en) | 1989-09-27 | 1989-09-27 | Improvement of string |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0352020U true JPH0352020U (en) | 1991-05-21 |
| JPH0751209Y2 JPH0751209Y2 (en) | 1995-11-22 |
Family
ID=31661578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11315589U Expired - Lifetime JPH0751209Y2 (en) | 1989-09-27 | 1989-09-27 | Improvement of string |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0751209Y2 (en) |
-
1989
- 1989-09-27 JP JP11315589U patent/JPH0751209Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0751209Y2 (en) | 1995-11-22 |
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