JPH0599216A - Fastening mechanism - Google Patents

Fastening mechanism

Info

Publication number
JPH0599216A
JPH0599216A JP25744891A JP25744891A JPH0599216A JP H0599216 A JPH0599216 A JP H0599216A JP 25744891 A JP25744891 A JP 25744891A JP 25744891 A JP25744891 A JP 25744891A JP H0599216 A JPH0599216 A JP H0599216A
Authority
JP
Japan
Prior art keywords
shape
pin
plate
fastening mechanism
fastening
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
Application number
JP25744891A
Other languages
Japanese (ja)
Inventor
Toshiaki Saito
利明 齊藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Ibaraki Ltd
Original Assignee
NEC Ibaraki Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Ibaraki Ltd filed Critical NEC Ibaraki Ltd
Priority to JP25744891A priority Critical patent/JPH0599216A/en
Publication of JPH0599216A publication Critical patent/JPH0599216A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Landscapes

  • Connection Of Plates (AREA)
  • Insertion Pins And Rivets (AREA)

Abstract

PURPOSE:To provide a dust-free fastening mechanism which enables fastening with no dust generating and which is usable for devices and equipments required to be kept highly clean, in particular. CONSTITUTION:A shape memory alloy made pin 1 stores its shape of which a tip end portion is opened, and a plate A2 and a plate B3 are fastened together by the shape recovery force thereof. The heat treatment conditions and components for this shape memory alloy made pin 1 are determined so that the alloy pin 1 may be recovered into a shape of which a tip end portion is opened under a use temperature, and this opened shape is stored in the alloy pin. Then, the pin 1 is applied with a pressure under a temperature lower than a shape recovery temperature, and the tip end portion thereof is closed and thus is made straight. In this condition, the pin 1 is inserted into holes of the plate A2 and the plate B3. By raising up to a use temperature, thereafter, the pin 1 shape is recovered to fasten both the plates A2 and B2 to each other. Since the shape recovery force is used for fastening, neither friction nor impact occurs, so that no dust generation occurs.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、締結機構に関し、特に
クリーン度を必要とする装置及び設備の締結機構に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fastening mechanism, and more particularly to a fastening mechanism for devices and equipment that require cleanliness.

【０００２】[0002]

【従来の技術】従来、一般に締結機構としては、ネジ、
リベット、圧入ピン等があり、それらの素材としては、
鉄系、銅系等の材料が使用されており、形状合金を使用
した物はない。2. Description of the Related Art Conventionally, as a fastening mechanism, a screw,
There are rivets, press-fit pins, etc.
Iron-based and copper-based materials are used, and no shape alloy is used.

【０００３】[0003]

【発明が解決しようとする課題】上述した従来の締結機
構は、締結時に多量の塵埃を発生し、クリーン度を必要
とする装置、設備に重大な障害をあたえるという欠点が
ある。The conventional fastening mechanism described above has a drawback in that a large amount of dust is generated at the time of fastening and a serious obstacle is given to a device and equipment requiring cleanliness.

【０００４】本発明の目的は、素材として形状記憶合金
を使用することにより、上記の欠点を解消し、摩擦、衝
撃、締結工具を使用せずに、塵埃を発生しないで締結で
きる無発塵の締結機構を提供することにある。The object of the present invention is to eliminate the above-mentioned drawbacks by using a shape memory alloy as a material, and to perform fastening without using friction, impact, or a fastening tool without generating dust, and without dust generation. It is to provide a fastening mechanism.

【０００５】[0005]

【課題を解決するための手段】本発明の締結機構は、材
料として形状記憶合金を使用している。The fastening mechanism of the present invention uses a shape memory alloy as a material.

【０００６】[0006]

【実施例】次に、本発明の実施例について図面を参照し
て説明する。Embodiments of the present invention will now be described with reference to the drawings.

【０００７】図１は本発明の第一の実施例の締結機構の
断面図、図１（ａ）は本第一の実施例の締結機構の締結
されたところを示す断面図、図１（ｂ）は本第一の実施
例の締結機構の締結される前を示す断面図である。FIG. 1 is a sectional view of a fastening mechanism according to a first embodiment of the present invention, FIG. 1A is a sectional view showing the fastening mechanism of the first embodiment of the present invention, and FIG. [Fig. 4] is a sectional view showing a state before the fastening mechanism of the first embodiment is fastened.

【０００８】図１において、本第一の実施例の締結機構
の形状記憶合金製ピン１は、先端が開いた状態を形状記
憶しており、この力によりプレートＢ３を上に押し上
げ、プレートＡ２と締結する。この状態を図１（ａ）に
示す。In FIG. 1, the shape memory alloy pin 1 of the fastening mechanism according to the first embodiment stores the shape of the state in which the tip is open, and this force pushes the plate B3 upward to move it to the plate A2. To conclude. This state is shown in FIG.

【０００９】この形状記憶合金製ピン１は、常温で先端
の開いた形状に回復するように、熱処理条件及び成分を
定め、形状記憶させる。ただし、使用条件が常温以下の
場合は、その温度にて形状回復するように設定する。上
記のように形状記憶された合金を冷却し、形状回復力の
なくなった状態で加圧し、先端をとじ、ストレートの状
態にする。この状態でプレートＡ２、プレートＢ３の穴
に形状記憶合金製ピン１を通す。この状態を図１（ｂ）
に示す。その後、温度上昇により形状記憶合金製ピン１
は形状を回復し、その形状回復力によりプレートＡ２、
プレートＢ３を締結する。The shape memory alloy pin 1 has its heat treatment conditions and components determined so that it recovers to a shape with an open tip at room temperature, and the shape memory is performed. However, if the operating conditions are below room temperature, the shape is set to recover at that temperature. The alloy whose shape is memorized as described above is cooled and pressed in a state where the shape recovery force is lost, the tip is closed and the state is straightened. In this state, the shape memory alloy pin 1 is passed through the holes of the plate A2 and the plate B3. This state is shown in Fig. 1 (b).
Shown in. After that, as the temperature rises, the shape memory alloy pin 1
Recovers its shape, and its shape recovery force causes the plate A2,
Fasten plate B3.

【００１０】上記のように、締結に、形状回復力を使用
しているため、ネジ、リベットのような摩擦や衝撃の発
生がなく、発塵がない。また、ドライバ等の工具も使用
しないため、工具からの発塵もなくなる。As described above, since the shape recovery force is used for fastening, friction and impact such as screws and rivets are not generated, and dust is not generated. Further, since no tool such as a driver is used, dust is not generated from the tool.

【００１１】図２は本発明の第二の実施例の締結機構の
断面図、図２（ａ）は本第二の実施例の締結機構の締結
されたところを示す断面図、図２（ｂ）は本第二の実施
例の締結機構の締結される前を示す断面図である。FIG. 2 is a sectional view of the fastening mechanism of the second embodiment of the present invention, FIG. 2 (a) is a sectional view showing the fastening mechanism of the second embodiment of the present invention, and FIG. 8] is a cross-sectional view showing the fastening mechanism of the second embodiment before being fastened.

【００１２】図２において、パイプ状の形状記憶合金製
ピン４は、プレート５とブロック６の穴よりも大きい外
形寸法を形状記憶しており、その形状回復力によりプレ
ート５とブロック６とを固定し、締結する。この状態を
図２（ａ）に示す。本第二の実施例も第一の実施例と同
様に挿入は形状回復力のなくなる温度まで冷却し、加圧
により穴よりも少ない外形寸法にして実施する。この状
態を図２（ｂ）に示す。本第二の実施例は圧入ピンのよ
うに、圧入時の発塵もないうえ、挿入時のかじり等の圧
入不良もなく、きびしい寸法精度も必要としない。ま
た、分解も形状回復力のなくなる温度まで冷却すれば、
圧入ピンのように大きな力を必要としないため、穴をだ
めにすることなく、容易に作業が行える。In FIG. 2, the pipe-shaped shape memory alloy pin 4 has a shape memory having an outer size larger than the holes of the plate 5 and the block 6, and the shape recovery force fixes the plate 5 and the block 6. And conclude. This state is shown in FIG. In the second embodiment, as in the first embodiment, the insertion is carried out by cooling to a temperature at which the shape recovery force disappears, and applying pressure to make the outer dimensions smaller than the holes. This state is shown in FIG. Unlike the press-fitting pin, the second embodiment does not generate dust during press-fitting, has no press-fitting failure such as galling at the time of insertion, and does not require strict dimensional accuracy. In addition, if it is cooled down to a temperature at which it does not have the ability to recover shape,
Since it does not require a large force like a press-fit pin, work can be performed easily without using holes.

【００１３】以上の説明においては、例として、形状に
先広ピンやパイプ状ピンを使用したが、これに限られる
ことなく、ナミガタスプリングピンやリベット形状でも
形状記憶合金を使用すれば、同様の効果が得られ、本発
明の目的を達成することができる。In the above description, a widened pin or a pipe pin is used as an example of the shape. However, the shape is not limited to this, and if the shape memory alloy is used for the Namigata spring pin and the rivet shape, the same result is obtained. The effect of is obtained and the object of the present invention can be achieved.

【００１４】[0014]

【発明の効果】以上説明したように、本発明の締結機構
は、素材として形状記憶合金を使用することにより、摩
擦、衝撃、締結工具を使用せずに、塵埃を発生しないで
締結できるという効果がある。As described above, the fastening mechanism of the present invention uses the shape memory alloy as a material, and thus can be fastened without generating dust, without using friction, impact, or a fastening tool. There is.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の第一の実施例の締結機構の断面図であ
る。 図１（ａ）は本第一の実施例の締結機構の締結されたと
ころを示す断面図である。 図１（ｂ）は本第一の実施例の締結機構の締結される前
を示す断面図である。FIG. 1 is a sectional view of a fastening mechanism according to a first embodiment of the present invention. FIG. 1A is a cross-sectional view showing the fastening mechanism of the fastening mechanism of the first embodiment. FIG. 1B is a sectional view showing the fastening mechanism of the first embodiment before being fastened.

【図２】本発明の第二の実施例の締結機構の断面図であ
る。 図２（ａ）は本第二の実施例の締結機構の締結されたと
ころを示す断面図である。 図２（ｂ）は本第二の実施例の締結機構の締結される前
を示す断面図である。FIG. 2 is a sectional view of a fastening mechanism according to a second embodiment of the present invention. FIG. 2A is a cross-sectional view showing the fastening mechanism of the fastening mechanism of the second embodiment. FIG. 2B is a sectional view showing the fastening mechanism of the second embodiment before being fastened.

【符号の説明】[Explanation of symbols]

１ 形状記憶合金製ピン ２ プレートＡ ３ プレートＢ ４ パイプ状の形状記憶合金製ピン ５ プレート ６ ブロック 1 Shape Memory Alloy Pin 2 Plate A 3 Plate B 4 Pipe-shaped Shape Memory Alloy Pin 5 Plate 6 Block

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 素材として形状記憶合金を使用すること
を特徴とする締結機構。1. A fastening mechanism comprising a shape memory alloy as a material.
JP25744891A 1991-10-04 1991-10-04 Fastening mechanism Pending JPH0599216A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25744891A JPH0599216A (en) 1991-10-04 1991-10-04 Fastening mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25744891A JPH0599216A (en) 1991-10-04 1991-10-04 Fastening mechanism

Publications (1)

Publication Number Publication Date
JPH0599216A true JPH0599216A (en) 1993-04-20

Family

ID=17306490

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25744891A Pending JPH0599216A (en) 1991-10-04 1991-10-04 Fastening mechanism

Country Status (1)

Country Link
JP (1) JPH0599216A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006506112A (en) * 2002-11-13 2006-02-23 ニューローソ・インプランツ・デザイン、エルエルシー Fastening system for attaching a given object to a bone
JP2009096381A (en) * 2007-10-18 2009-05-07 Nsk Ltd Steering device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006506112A (en) * 2002-11-13 2006-02-23 ニューローソ・インプランツ・デザイン、エルエルシー Fastening system for attaching a given object to a bone
JP2009096381A (en) * 2007-10-18 2009-05-07 Nsk Ltd Steering device

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