JPH0443561Y2 - - Google Patents
Info
- Publication number
- JPH0443561Y2 JPH0443561Y2 JP6178586U JP6178586U JPH0443561Y2 JP H0443561 Y2 JPH0443561 Y2 JP H0443561Y2 JP 6178586 U JP6178586 U JP 6178586U JP 6178586 U JP6178586 U JP 6178586U JP H0443561 Y2 JPH0443561 Y2 JP H0443561Y2
- Authority
- JP
- Japan
- Prior art keywords
- shape memory
- memory alloy
- rack
- shaped
- 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 32
- 238000010438 heat treatment Methods 0.000 claims description 6
- 230000007935 neutral effect Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Lock And Its Accessories (AREA)
- Transmission Devices (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、自動車のドアロツク駆動装置、詳し
くは形状記憶合金を作動部材とした自動車用ドア
ロツク駆動装置に関する。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an automobile door lock driving device, and more particularly to an automobile door lock driving device using a shape memory alloy as an operating member.
（従来の技術）
従来、自動車用ドアロツクの駆動装置として
は、ソレノイド駆動方式あるいはモータ駆動方式
が多く用いられている。(Prior Art) Conventionally, solenoid drive systems or motor drive systems are often used as drive devices for automobile door locks.
最近例えば特開昭58−50265号のようにモータ
やソレノイドに変るものとして、加熱されたとき
に変形する所謂形状記憶合金を作動部材として使
用した車輌用ドアロツク駆動装置がある。 Recently, as an alternative to motors and solenoids, as disclosed in Japanese Patent Application Laid-Open No. 58-50265, there has been developed a vehicle door lock drive device that uses a so-called shape memory alloy, which deforms when heated, as an operating member.
（考案が解決しようとする問題点）
しかし、この考案は加熱用の熱源が形状変化を
生じる形状記憶合金から離れた位置に配設される
ため、形状記憶合金に対する熱の伝達が悪くなり
円滑な作動が期待できないという欠点がある。(Problem that the invention aims to solve) However, in this invention, the heat source for heating is placed at a location away from the shape memory alloy that causes shape change, so the heat transfer to the shape memory alloy becomes poor and smooth The drawback is that it cannot be expected to work.
（問題点を解決するための手段）
本考案は上記の欠点を解消することを目的とす
るもので、自動車のドアロツクをロツクとアンロ
ツクに駆動するドアロツク駆動装置を形状記憶合
金により作動させるようにした自動車用ドアロツ
ク駆動装置において、一端が固定され対向する一
対の棒状ヒータと、該棒状ヒータに各々嵌装され
且つ熱に反応するコイル状の形状記憶合金と、該
形状記憶合金を両端に固着し棒状ヒータに嵌装さ
れたラツクとを具備し、該ラツクを形状記憶合金
によりロツクとアンロツクの中立位置に位置させ
且つ該形状記憶合金が棒状ヒータの加熱により伸
縮したときラツクが中立位置から移動することを
特徴とする自動車用ドアロツク駆動装置である。(Means for Solving the Problems) The purpose of the present invention is to solve the above-mentioned drawbacks, and the present invention is designed to operate the door lock drive device that locks and unlocks the door lock of a car using a shape memory alloy. A door lock drive device for an automobile includes a pair of rod-shaped heaters that are fixed at one end and face each other, a coil-shaped shape memory alloy that is fitted into each of the rod-shaped heaters and that reacts to heat, and a rod-shaped shape memory alloy with the shape memory alloy fixed to both ends. and a rack fitted into a heater, the rack is positioned at a neutral position between lock and unlock by a shape memory alloy, and the rack moves from the neutral position when the shape memory alloy expands and contracts due to heating by the rod-shaped heater. This is an automobile door lock drive device characterized by:
（実施例）
以下に本考案を、実施例を示す添付の図面に基
づいて詳細に説明する。(Example) The present invention will be described in detail below based on the attached drawings showing examples.
第１図に本考案の要部説明図を示した。図にお
いて本考案は、一端を基体１に固着し、他端を対
向させて直列に配設した一対の棒状ヒータ２，３
と形状記憶合金により形成され、該棒状ヒータ
２，３に夫々伸縮可能に嵌装されたコイル状の一
対の形状記憶合金４，５と、該一対の形状記憶合
金４，５間に前記棒状ヒータ２，３の軸方向に摺
動自在に挾設されたラツク６と、該ラツク６と噛
合するピニオン７と、該ピニオン７と噛合する扇
状ギヤ８と、該扇状ギヤ８と一体に作動するロツ
キングレバー９と、前記ラツク６の移動により衝
接して前記棒状ヒータ２，３の通電を制御するス
イツチSW1，SW2とにより主として構成される。 FIG. 1 shows an explanatory diagram of the main parts of the present invention. In the figure, the present invention shows a pair of rod-shaped heaters 2 and 3 arranged in series with one end fixed to a base 1 and the other end facing each other.
A pair of coil-shaped shape memory alloys 4 and 5 formed of a shape memory alloy and expandably and contractably fitted in the rod heaters 2 and 3, and the rod heater between the pair of shape memory alloys 4 and 5. A rack 6 slidably mounted in the axial direction of the racks 2 and 3, a pinion 7 that meshes with the rack 6, a fan-shaped gear 8 that meshes with the pinion 7, and a rod that operates integrally with the fan-shaped gear 8. It is mainly composed of a king lever 9 and switches SW 1 and SW 2 that collide with each other when the rack 6 moves to control the energization of the rod-shaped heaters 2 and 3.
以上の構成において、一対の棒状ヒータ２，３
（以下単にヒータという）は通電により発熱する
発熱体（図示せず）を金属管に内装する等により
形成される。又、一対の形状記憶合金４，５は加
熱により記憶していた元の形状（図示の例ではコ
イル状の形状記憶合金４，５が第２図において長
さｌに延伸した状態）に変形する性質を有する公
知の形状記憶合金により、ヒータ２，３の外周に
コイル状に伸縮可能に嵌装して形成される。 In the above configuration, a pair of rod-shaped heaters 2, 3
(hereinafter simply referred to as a heater) is formed by, for example, installing a heating element (not shown) that generates heat when energized in a metal tube. Moreover, the pair of shape memory alloys 4 and 5 are transformed into their original shape by heating (in the illustrated example, the coiled shape memory alloys 4 and 5 are stretched to length l in FIG. 2). It is formed of a known shape memory alloy having the properties of a shape memory alloy, and is fitted around the outer periphery of the heaters 2 and 3 in a coil shape so as to be expandable and contractible.
又、ラツク６は水平方向に歯６ａを形成した長
方板体の両端部に一対のヒータ２，３に夫々貫挿
される側板６ｂを設けて形成され、側板６ｂを介
して一対のヒータ２，３にその軸方向に対し摺動
自在に装着される。又、ピニオン７は、支軸７ｂ
が図示しない基体に枢支され、周面に形成された
歯７ａがラツク６の歯６ａに噛合してラツク６の
移動に伴ない時計方向又は反時計方向に回転され
る。 Furthermore, the rack 6 is formed by providing side plates 6b, which are inserted through the pair of heaters 2 and 3, respectively, at both ends of a rectangular plate having teeth 6a formed in the horizontal direction. 3 so as to be slidable in its axial direction. Further, the pinion 7 is connected to the support shaft 7b.
is pivotally supported by a base (not shown), teeth 7a formed on the peripheral surface mesh with teeth 6a of the rack 6, and rotated clockwise or counterclockwise as the rack 6 moves.
又、扇状ギヤ８は図示しない基体に固定した支
軸８ｂに枢支された扇状板体の円弧状外周面に、
ピニオン７の歯と噛合する歯８ａを形成してな
る。さらにロツキングレバー９は、一端を扇状ギ
ヤ８の支軸８ｂに扇状ギヤ８と一体に作動するよ
うに枢支し、他端を図示しない自動車のドアロツ
ク開閉機構に連結してなり、１０はその連結用穴
である。 Further, the fan-shaped gear 8 is mounted on the arc-shaped outer circumferential surface of the fan-shaped plate body which is pivotally supported on a support shaft 8b fixed to a base (not shown).
Teeth 8a are formed to mesh with the teeth of the pinion 7. Further, the locking lever 9 has one end pivoted to the support shaft 8b of the fan-shaped gear 8 so as to operate integrally with the fan-shaped gear 8, and the other end connected to an automobile door lock opening/closing mechanism (not shown). This is a connection hole.
又、スイツチSW1，SW2は、押圧又は接触によ
り通電がOFFとなるタイプの常閉スイツチから
なり、夫々基板１のヒータ取付部付近に、ラツク
６が形状記憶合金４，５の作動により移動したと
きラツク６の側板６ｂに衝接するように装着され
る。 In addition, the switches SW 1 and SW 2 are normally closed switches of the type that turn off the current when pressed or touched, and the racks 6 are moved near the heater mounting part of the board 1 by the operation of the shape memory alloys 4 and 5, respectively. It is mounted so that it collides with the side plate 6b of the rack 6.
このスイツチSW1，SW2は、一対のヒータ２，
３並びにドアロツク操作用のロツクスイツチSW3
と第３図に示される回路に接続される。 These switches SW 1 and SW 2 are connected to a pair of heaters 2,
3 and lock switch SW 3 for door lock operation
and is connected to the circuit shown in FIG.
第４図に本考案の正面部を一部切欠いた概略正
面図、第５図にその側面図を示した。図において
１１はケーシング、１２はドアへの取付部を示
す。 FIG. 4 shows a schematic front view of the present invention with a partially cut away front part, and FIG. 5 shows a side view thereof. In the figure, 11 shows the casing, and 12 shows the attachment part to the door.
本考案装置は、常態において第１図に示される
中立位置に保持される。この常態で、ロツクスイ
ツチSW3をロツク側に操作すると、第３図におい
てSW1は閉じているので、ヒータ２が加熱され、
その熱により形状記憶合金４は元の記憶された
形、すなわち第２図において長さｌに伸張した状
態に変形する。この形状記憶合金４の変形伸張に
よつてラツク６は押され、矢線イ方向に摺動する
と共にピニオン７は矢線ロ方向に回動する。これ
により扇状ギヤ８は矢線ハ方向に回動し、扇状ギ
ヤ８と一体のロツキングレバー９は矢線ニ方向の
ロツク位置に作動し、ドアロツクが行なわれる。 The device of the present invention is normally held in the neutral position shown in FIG. In this normal state, when the lock switch SW 3 is operated to the lock side, since SW 1 is closed in Fig. 3, the heater 2 is heated.
The heat causes the shape memory alloy 4 to deform into its original memorized shape, ie, stretched to a length l in FIG. This deformation and expansion of the shape memory alloy 4 pushes the rack 6 and causes it to slide in the direction of the arrow A, while the pinion 7 rotates in the direction of the arrow B. As a result, the fan-shaped gear 8 rotates in the direction of the arrow C, and the locking lever 9 integrated with the fan-shaped gear 8 is operated to the lock position in the direction of the arrow D, thereby locking the door.
この場合、一方の形状記憶合金５は、第３図に
おいてロツクスイツチSW3がロツク側にあり、ヒ
ータ３は加熱されていないので柔軟で変形性を有
しており、ラツク６に押されて縮小される。 In this case, one shape memory alloy 5 is flexible and deformable because the lock switch SW 3 is on the lock side in FIG. 3 and the heater 3 is not heated, and is pushed by the rack 6 and reduced. Ru.
ドアロツクが終了した位置でラツク６がSW1に
衝接してSW1をOFFとし、ヒータ２は切れる。
（第２図の状態）
次にロツクスイツチSW3をアンロツク側に切替
えると、第３図において右側の回路に通電され、
ヒータ３が加熱されて形状記憶合金５が記憶して
いる長さｌに伸張し、ラツク６、ピニオン７、扇
状ギヤ８及びロツキングレバー９が前記の場合と
逆方向に作動して図示しないドアロツクをアンロ
ツクさせる。 At the position where the door lock is completed, the rack 6 collides with SW 1 , turning SW 1 off, and the heater 2 is turned off.
(Situation shown in Figure 2) Next, when lock switch SW 3 is switched to the unlock side, the circuit on the right side in Figure 3 is energized.
The heater 3 is heated and the shape memory alloy 5 is expanded to the memorized length l, and the rack 6, pinion 7, fan gear 8 and locking lever 9 operate in the opposite direction to the above case to lock the door (not shown). to unlock.
この場合、ヒータ２は切れているので一方の形
状記憶合金４はラツク６に押され容易に変形縮小
される。ドアのアンロツク作動が終了した位置で
ラツク６がSW2に当接してSW2をOFFとし、ヒ
ータ３は切れる。 In this case, since the heater 2 is turned off, one shape memory alloy 4 is pushed by the rack 6 and easily deformed and reduced. At the position where the door unlocking operation is completed, the rack 6 comes into contact with SW 2 , turning SW 2 OFF, and the heater 3 is turned off.
次にロツキングレバー９の操作を手動で行なう
ときは、第３図においてロツクスイツチSW3を中
立位置に保持しておくことにより、ヒータ２，３
は切れた状態となつており、形状記憶合金４，５
は自由に変形するからラツク６の摺動は容易であ
り、ロツク位置又はアンロツク位置への作動も容
易に行なわれる。 Next, when manually operating the locking lever 9, by holding the locking switch SW 3 in the neutral position as shown in FIG.
is in a broken state, and shape memory alloys 4 and 5
Since it deforms freely, the rack 6 can be easily slid and moved to the locked or unlocked position.
なお、本実施例においては、形状記憶合金４，
５として加熱により伸張する特性を有するものを
用いたが、逆に加熱により縮小する特性を有する
ものを使用することにより同様の作動を行なわせ
ることができる。 In addition, in this example, shape memory alloy 4,
Although a material having the property of expanding when heated was used as No. 5, a similar operation can be performed by using a material having the property of shrinking when heated.
（考案の効果）
本考案の自動車ドアロツク駆動装置は、以上詳
細に説明した構成及び作用よりなり、駆動源とし
てソレノイドやモータを使用しないから作動音の
発生がなく静かであると共に、形状記憶合金から
なる作動部材を棒状ヒータの周囲にコイル状に巻
回したから、加熱変形に至る時間が短縮され、装
置の作動を迅速に行なわせることができるという
効果がある。(Effects of the invention) The automobile door lock drive device of the present invention has the structure and operation described in detail above, and does not use a solenoid or a motor as a drive source, so it is quiet with no operating noise, and is made of shape memory alloy. Since the operating member is wound in a coil around the rod-shaped heater, the time required for heating and deformation to occur is shortened, and the device can be operated quickly.
第１図は本考案の要部説明図、第２図は本考案
の作動説明図、第３図は本考案の作動回路図、第
４図は本考案の一部切欠正面図、第５図は本考案
の側面図である。
２，３……棒状ヒータ、４，５……形状記憶合
金、６……ラツク、７……ピニオン、８……扇状
ギヤ、９……ロツキングレバー。
Fig. 1 is an explanatory diagram of the main parts of the present invention, Fig. 2 is an explanatory diagram of the operation of the invention, Fig. 3 is an operating circuit diagram of the invention, Fig. 4 is a partially cutaway front view of the invention, Fig. 5 is a side view of the present invention. 2, 3... Rod-shaped heater, 4, 5... Shape memory alloy, 6... Rack, 7... Pinion, 8... Fan-shaped gear, 9... Locking lever.
Claims (1)
動するドアロツク駆動装置を形状記憶合金により
作動させるようにした自動車用ドアロツク駆動装
置において、 一端が固定され対向する一対の棒状ヒータと、
該棒状ヒータに各々嵌装され且つ熱に反応するコ
イル状の形状記憶合金と、該形状記憶合金を両端
に固着し棒状ヒータに嵌装されたラツクとを具備
し、該ラツクを形状記憶合金によりロツクとアン
ロツクの中立位置に位置させ且つ該形状記憶合金
が棒状ヒータの加熱により伸縮したときラツクが
中立位置から移動することを特徴とする自動車用
ドアロツク駆動装置。[Scope of Utility Model Registration Claim] A door lock drive device for an automobile in which the door lock drive device for locking and unlocking the door lock of an automobile is operated by a shape memory alloy, a pair of rod-shaped heaters having one end fixed and facing each other;
It is equipped with a coil-shaped shape memory alloy that is fitted into each of the rod-shaped heaters and reacts to heat, and a rack that has the shape memory alloy fixed to both ends and fitted into the rod-shaped heater, and the rack is made of the shape memory alloy. A door lock drive device for an automobile, characterized in that the rack is located at a neutral position between locking and unlocking, and the rack moves from the neutral position when the shape memory alloy expands and contracts by heating with a rod-shaped heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6178586U JPH0443561Y2 (en) | 1986-04-25 | 1986-04-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6178586U JPH0443561Y2 (en) | 1986-04-25 | 1986-04-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62173472U JPS62173472U (en) | 1987-11-04 |
| JPH0443561Y2 true JPH0443561Y2 (en) | 1992-10-14 |
Family
ID=30895435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6178586U Expired JPH0443561Y2 (en) | 1986-04-25 | 1986-04-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0443561Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022182862A1 (en) * | 2021-02-26 | 2022-09-01 | Tesla, Inc. | Managing shape memory alloy actuators |
-
1986
- 1986-04-25 JP JP6178586U patent/JPH0443561Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62173472U (en) | 1987-11-04 |
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