JPH01175681U - - Google Patents
Info
- Publication number
- JPH01175681U JPH01175681U JP6922688U JP6922688U JPH01175681U JP H01175681 U JPH01175681 U JP H01175681U JP 6922688 U JP6922688 U JP 6922688U JP 6922688 U JP6922688 U JP 6922688U JP H01175681 U JPH01175681 U JP H01175681U
- Authority
- JP
- Japan
- Prior art keywords
- needle
- shape memory
- memory alloy
- needle hole
- telescopic
- 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
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 7
- 229910001566 austenite Inorganic materials 0.000 claims description 2
- 230000002457 bidirectional effect Effects 0.000 claims description 2
- 230000009466 transformation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 229910000734 martensite Inorganic materials 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 1
Description
第１図は本考案の針穴拡大状態を示す正面図、
第２図は本考案の針穴縮小状態を示す正面図、第
３図は使用方法説明図、第４図は双方向性形状記
憶合金の特性図、第５図は単方向性形状記憶合金
の特性図。
１……針、２……針穴、Ａ……使用前のマルテ
ンサイト相における斜視図、Ｂ……加熱後のオー
ステナイト相における斜視図、Ｃ……糸通し後の
マルテンサイト相における斜視図、Ｄ……加圧変
形後のマルテンサイト相における斜視図。
Fig. 1 is a front view showing the enlarged state of the needle hole of the present invention;
Figure 2 is a front view showing the reduced needle hole state of the present invention, Figure 3 is an explanatory diagram of how to use it, Figure 4 is a characteristic diagram of a bidirectional shape memory alloy, and Figure 5 is a diagram of a unidirectional shape memory alloy. Characteristic diagram. 1... needle, 2... needle hole, A... perspective view in martensitic phase before use, B... perspective view in austenite phase after heating, C... perspective view in martensitic phase after threading, D... A perspective view of the martensitic phase after pressure deformation.
Claims (1)
穴２を有する針１において、その形成時には針１
の温度を変態点以上に上げて金属組織をオーステ
ナイト相とし、かつ、針穴２を拡大した状態で形
成したことを特徴とする針穴伸縮針。 ２ 形状記憶合金を単方向性形状記憶合金とした
実用新案登録請求の範囲第１項記載の針穴伸縮針
。 ３ 形状記憶合金を双方向性形状記憶合金とした
実用新案登録請求の範囲第１項記載の針穴伸縮針
。[Claims for Utility Model Registration] 1. A needle 1 made of a shape memory alloy and having a needle hole 2 for threading, when the needle 1 is formed.
1. A telescopic needle with a needle hole, characterized in that the temperature of the needle is raised to a transformation point or higher to make the metallographic structure into an austenite phase, and the needle hole 2 is formed in an enlarged state. 2. The telescopic needle with a needle hole according to claim 1, in which the shape memory alloy is a unidirectional shape memory alloy. 3. The telescopic needle with a needle hole according to claim 1, in which the shape memory alloy is a bidirectional shape memory alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6922688U JPH01175681U (en) | 1988-05-24 | 1988-05-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6922688U JPH01175681U (en) | 1988-05-24 | 1988-05-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01175681U true JPH01175681U (en) | 1989-12-14 |
Family
ID=31294509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6922688U Pending JPH01175681U (en) | 1988-05-24 | 1988-05-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01175681U (en) |
-
1988
- 1988-05-24 JP JP6922688U patent/JPH01175681U/ja active Pending