JPH0139908Y2 - - Google Patents
Info
- Publication number
- JPH0139908Y2 JPH0139908Y2 JP6901384U JP6901384U JPH0139908Y2 JP H0139908 Y2 JPH0139908 Y2 JP H0139908Y2 JP 6901384 U JP6901384 U JP 6901384U JP 6901384 U JP6901384 U JP 6901384U JP H0139908 Y2 JPH0139908 Y2 JP H0139908Y2
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- attached
- inner cylinder
- spring
- rod
- 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.)
- Expired
Links
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 11
- 239000004020 conductor Substances 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 description 9
- 230000008602 contraction Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
Landscapes
- Springs (AREA)
- Toys (AREA)
Description
【考案の詳細な説明】
「産業上の利用分野」
本考案は例えば照明器具の保護カバーの開閉の
作動装置として、或いはその他各種の機構の駆動
装置として利用できるものである。[Detailed Description of the Invention] "Industrial Application Field" The present invention can be used, for example, as an operating device for opening and closing a protective cover of a lighting device, or as a driving device for various other mechanisms.
「従来の技術」
本出願人は実願昭58−72497号において形状記
憶合金を利用した作動装置を提供した。該装置は
内部に装設されたスプリング状の形状記憶合金に
電流を流すと発熱し、これにより形状記憶合金は
収縮し、該収縮力を各種の機構に作用させるもの
であつて、該装置には上記形状記憶合金に外部よ
りオーバーロードが負荷された場合には形状記憶
合金を保護するためのスプリングが装設されてい
て、上記のオーバーロードの負荷を上記保護用ス
プリングが吸収して形状記憶合金にある一定以上
の力が負荷されないようになつている。"Prior Art" The present applicant provided an actuating device using a shape memory alloy in Utility Model Application No. 72497/1983. The device generates heat when a current is passed through a spring-like shape memory alloy installed inside the device, causing the shape memory alloy to contract and apply the contractile force to various mechanisms. is equipped with a spring to protect the shape memory alloy when an overload is applied to the shape memory alloy from the outside, and the protective spring absorbs the overload load and restores the shape memory. The alloy is designed to prevent forces above a certain level from being applied.
「考案が解決しようとする問題点」
上記の従来装置において収縮した形状記憶合金
を復元させるには電流を切つて温度を下げ、この
状態で復元させるような力を与えなければならな
い。そのために該装置とは別に復元用のスプリン
グを機構内に取付けなければならないものであつ
た。従つて機構内に復元用スプリングを取付ける
ための配慮を設計・製作の段階でしなければなら
ず、そのための繁雑な作業を要すると共に機構内
部が複雑化し、引掛り等による作動不良を発生し
易いものであつた。本考案は復元用スプリングも
作動装置に組込んで、上記のような問題点を解消
した作動装置を提供するものである。``Problems to be Solved by the Invention'' In order to restore the shrunken shape memory alloy in the conventional device described above, the electric current must be cut off to lower the temperature, and a force must be applied to restore the shape memory alloy in this state. Therefore, a restoring spring had to be installed in the mechanism separately from the device. Therefore, consideration must be given to installing the restoring spring inside the mechanism at the design and manufacturing stage, which requires complicated work, complicates the inside of the mechanism, and is likely to cause malfunctions due to binding, etc. It was hot. The present invention provides an actuating device that solves the above-mentioned problems by incorporating a restoring spring into the actuating device.
「問題点を解決するための手段」
第１図において１は本考案の構成を総括的に示
し、２は内筒、３は外筒であつて、内筒２と外筒
３との間には間隙４が形成され、かつ両筒２，３
は図において左端部が固定リング５によつて互い
に固定されている。上記間隙４には中間筒６が挿
脱可能に配設されている。７はロツドであつて、
該ロツド７は右端部が中間筒６の右端部に対し固
定リング８によつて固定されて中間筒６内に配置
され、中間筒６が間隙４内に出没するに伴なつて
内筒２の内側に出没するものであり、ロツド７の
右端部には連結部９が左端部には取付片１０が取
付けてあり、連結部９は中間筒６より外部に突出
し、外部の他の機構に連結できるように構成され
ている。また取付片１０には形状記憶合金よりな
るコイルスプリング状の弾機１１の右端部が取付
けられている。該弾機１１の左端部は内筒２内の
左端部に配置したパツド１２に対して一体に結合
している取付片１３に取付けてある。１４はエン
ドキヤツプで該エンドキヤツプ１４は内筒２の右
端部に形成した引掛部１５の内側に装着してあ
り、その一部を内筒２の右端部より外部に突出さ
せて連結部１６を形成するものである。１７はオ
ーバーロードスプリングであつて該スプリング１
７は内筒２の内壁に沿い、かつ弾機１１の外側に
位置させて配設するものであつて、その右端部は
内筒２の右端部に形成した引掛部１８に当接さ
せ、左端部はパツド１２の段部１２′に当接させ
る。しかしてスプリング１７の押圧力によりパツ
ド１２をエンドキヤツプ１４に常時押し付けてい
るものである。１９はリターンスプリングであつ
て該スプリング１９は、中間筒６の外周面に配置
し、その右端部は中間筒６の右端部に取付けた取
付リング２０に当接させ、左端部は外筒３の右端
部の縁部に当接させ、しかして中間筒６を常時、
間隙４内から外部に押し出す方向に押圧するもの
である。なお固定リング８とエンドキヤツプ１４
は絶縁体より形成し、ロツド７、連結部９、取付
片１０，１３、パツド１２、スプリング１７，１
９、内筒２及び中間筒６は導電体より形成する。"Means for Solving the Problems" In Fig. 1, 1 generally shows the structure of the present invention, 2 is an inner cylinder, and 3 is an outer cylinder, and between the inner cylinder 2 and the outer cylinder 3, A gap 4 is formed, and both cylinders 2 and 3
In the figure, the left end portions are fixed to each other by a fixing ring 5. An intermediate cylinder 6 is arranged in the gap 4 so as to be insertable and removable. 7 is Rod,
The right end of the rod 7 is fixed to the right end of the intermediate cylinder 6 by a fixing ring 8, and the rod 7 is disposed inside the intermediate cylinder 6, and as the intermediate cylinder 6 moves in and out of the gap 4, the rod 7 moves in and out of the inner cylinder 2. A connecting part 9 is attached to the right end of the rod 7, and a mounting piece 10 is attached to the left end of the rod 7. The connecting part 9 protrudes outside from the intermediate cylinder 6 and is connected to other external mechanisms. It is configured so that it can be done. Further, the right end portion of a coil spring-like bullet 11 made of a shape memory alloy is attached to the mounting piece 10. The left end of the ammunition 11 is attached to a mounting piece 13 that is integrally connected to a pad 12 disposed at the left end inside the inner cylinder 2. Reference numeral 14 denotes an end cap, and the end cap 14 is attached to the inside of a hook 15 formed at the right end of the inner cylinder 2, and a part of the end cap protrudes outside from the right end of the inner cylinder 2 to connect the connecting part 16. It is something that forms. 17 is an overload spring, and the spring 1
7 is disposed along the inner wall of the inner cylinder 2 and outside the ammunition 11, its right end is brought into contact with a hook 18 formed at the right end of the inner cylinder 2, and its left end The part is brought into contact with the stepped part 12' of the pad 12. Thus, the pad 12 is constantly pressed against the end cap 14 by the pressing force of the spring 17. Reference numeral 19 denotes a return spring, and the spring 19 is arranged on the outer circumferential surface of the intermediate cylinder 6. Its right end is brought into contact with the mounting ring 20 attached to the right end of the intermediate cylinder 6, and its left end is placed in contact with the mounting ring 20 attached to the right end of the intermediate cylinder 6. The middle cylinder 6 is brought into contact with the edge of the right end part, and the intermediate cylinder 6 is always kept in contact with the edge of the right end.
It presses in the direction of pushing out from inside the gap 4 to the outside. Furthermore, the fixing ring 8 and end cap 14
is made of an insulator, and includes a rod 7, a connecting portion 9, mounting pieces 10 and 13, a pad 12, and springs 17 and 1.
9. The inner cylinder 2 and the intermediate cylinder 6 are made of a conductor.
「作用」
弾機１１に電流を通すと該弾機１１にジユール
熱が発生し温度が上昇する。温度がある一定以上
になると弾機１１は形状記憶合金である特性によ
り収縮する。該収縮力はリターンスプリング１９
の押圧力に抗して打勝ち、この場合エンドキヤツ
プ１４が固定されていればロツド７及び中間筒６
は第１図において左方に引き寄せられ、ロツド７
は内筒２内に、中間筒６は間隙４内に侵入する。
なおロツド７の連結部１０が固定されている場合
には内筒２及び外筒３が右方に引き寄せられるこ
とになるが、いずれの場合であつても装置の長さ
が収縮してエンドキヤツプ１４と連結部９との間
隔が短かくなるものであると考えればよい。次に
上記の状態で弾機１１に対する通電を停止すれば
弾機１１は温度が下がり収縮を維持する特性はな
くなり、リターンスプリング１９の押力によつて
装置は初期状態（第１図）に復元される。なお弾
機１１に通電するには連結部９と、リターンスプ
リング１９または中間筒６にリード線２１，２２
を接続して該リード線２１，２２間に電圧を与え
ればよい。そこで通電中即ち弾機１１が収縮して
装置の長さが収縮している時に装置の長さを伸長
させるような外力が与えられた場合には弾機１１
は収縮したままの状態でパツド１２がエンドキヤ
ツプ１４から離反しオーバーロードスプリング１
７は圧縮して、上記の外力を吸収することにな
る。"Function" When electric current is passed through the ammunition 11, Joule heat is generated in the ammunition 11, and the temperature rises. When the temperature exceeds a certain level, the bullet 11 contracts due to its shape memory alloy properties. The contraction force is caused by the return spring 19
In this case, if the end cap 14 is fixed, the rod 7 and the intermediate cylinder 6
is pulled to the left in Figure 1, and Rod 7
enters the inner cylinder 2, and the intermediate cylinder 6 enters the gap 4.
Note that if the connecting portion 10 of the rod 7 is fixed, the inner cylinder 2 and outer cylinder 3 will be pulled to the right, but in either case, the length of the device will shrink and the end cap will It may be considered that the distance between 14 and the connecting portion 9 is shortened. Next, if the power supply to the bullet 11 is stopped in the above state, the temperature of the bullet 11 will drop and the characteristic of maintaining contraction will disappear, and the device will be restored to its initial state (Fig. 1) by the pushing force of the return spring 19. be done. Note that in order to energize the ammunition 11, lead wires 21 and 22 are connected to the connecting portion 9 and the return spring 19 or the intermediate cylinder 6.
It is sufficient to connect the lead wires 21 and 22 and apply a voltage between the lead wires 21 and 22. Therefore, when an external force is applied to extend the length of the device while the ammunition 11 is being energized, that is, when the ammunition 11 is contracting and the length of the device is contracted, the ammunition 11
The pad 12 separates from the end cap 14 while it remains contracted, and the overload spring 1
7 will be compressed to absorb the above external force.
「考案の効果」
本考案は上述の如くなるものであり、装置の外
面に復元用のリターンスプリングをも組込み取付
けたので該装置を使用すれば別個に復元用のスプ
リングを取付ける必要はなく、機構の組立作業の
繁雑性が減縮されると共に機構の内部が簡略化さ
れ、機構の設計、製作、管理等がやり易くなる。
また本考案のリターンスプリングは装置の外面に
巻設するような状態に装着したので装置全体が特
に大きくなることはなく、上記の効果を促進させ
るものである。``Effect of the invention'' The present invention is as described above, and a return spring for restoring is also incorporated and attached to the outer surface of the device, so if this device is used, there is no need to separately install a spring for restoring, and the mechanism is The complexity of the assembly work is reduced and the internal structure of the mechanism is simplified, making it easier to design, manufacture, manage, etc. the mechanism.
In addition, since the return spring of the present invention is wound around the outer surface of the device, the device as a whole does not become particularly large, which promotes the above-mentioned effects.
図は本考案の実施例を示す縦断面図である。
２……内筒、３……外筒、４……間隙、６……
中間筒、７……ロツド、１１……弾機、１２……
パツド、１４……エンドキヤツプ、１７……オー
バーロードスプリング、１９……リターンスプリ
ング。
The figure is a longitudinal sectional view showing an embodiment of the present invention. 2...Inner cylinder, 3...Outer cylinder, 4...Gap, 6...
Intermediate cylinder, 7...rod, 11...bullet, 12...
Pad, 14... End cap, 17... Overload spring, 19... Return spring.
Claims (1)
外筒３との間に間隙４を形成し、該間隙４に中間
筒６が出没するように構成し、該中間筒６内にロ
ツド７を配設してその一方端部を中間筒６の外方
端部に固定し、ロツド７の他端部には形状記憶合
金よりなるコイルスプリング状の弾機１１の一端
部を取付け、該弾機１１の他端部は内筒２内の端
部に配置したパツド１２に取付け、該パツド１２
は内筒２内の端部に固定したエンドキヤツプ１４
に対し離接可能に当接させ、さらに内筒２内には
一端部が上記パツド１２に取付られ他端部が内筒
２の他端部に取付けられたオーバーロードスプリ
ング１７を配設し、また中間筒６の外周面には一
端部が中間筒６の端部に取付けられ、他端部が外
筒３の端部の縁部に当接したリターンスプリング
１９を配設し、かつ上記ロツド７、パツド１２、
スプリング１７，１９、内筒２及び中間筒６を導
電体より形成してなる形状記憶合金を利用した自
動作動装置。 A gap 4 is formed between the inner tube 2 and the outer tube 3, each of which has one end fixed to the other. An intermediate tube 6 is configured to protrude and retract into the gap 4, and a rod 7 is inserted into the intermediate tube 6. One end of the rod 7 is fixed to the outer end of the intermediate cylinder 6, and one end of a coil spring-like elastic spring 11 made of a shape memory alloy is attached to the other end of the rod 7. The other end of 11 is attached to a pad 12 disposed at the end inside the inner cylinder 2, and the pad 12
is an end cap 14 fixed to the end inside the inner cylinder 2.
Further, an overload spring 17 is disposed in the inner cylinder 2 and has one end attached to the pad 12 and the other end attached to the other end of the inner cylinder 2. Further, a return spring 19 is disposed on the outer circumferential surface of the intermediate cylinder 6, one end of which is attached to the end of the intermediate cylinder 6, and the other end of which is in contact with the edge of the end of the outer cylinder 3. 7, Pad 12,
An automatic actuation device using a shape memory alloy in which springs 17, 19, an inner cylinder 2, and an intermediate cylinder 6 are made of a conductive material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6901384U JPS60181809U (en) | 1984-05-14 | 1984-05-14 | Automatic actuation device using shape memory alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6901384U JPS60181809U (en) | 1984-05-14 | 1984-05-14 | Automatic actuation device using shape memory alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60181809U JPS60181809U (en) | 1985-12-03 |
| JPH0139908Y2 true JPH0139908Y2 (en) | 1989-11-30 |
Family
ID=30604288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6901384U Granted JPS60181809U (en) | 1984-05-14 | 1984-05-14 | Automatic actuation device using shape memory alloy |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60181809U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6359953A (en) * | 1986-08-30 | 1988-03-15 | パラマウントベッド株式会社 | Cushion mechanism for supporting body |
| JPS6359954A (en) * | 1986-08-30 | 1988-03-15 | パラマウントベッド株式会社 | Body support cushion mechanism |
-
1984
- 1984-05-14 JP JP6901384U patent/JPS60181809U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60181809U (en) | 1985-12-03 |
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