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JP6853574B2 - Actuator - Google Patents
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JP6853574B2 - Actuator - Google Patents

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JP6853574B2
JP6853574B2 JP2017119069A JP2017119069A JP6853574B2 JP 6853574 B2 JP6853574 B2 JP 6853574B2 JP 2017119069 A JP2017119069 A JP 2017119069A JP 2017119069 A JP2017119069 A JP 2017119069A JP 6853574 B2 JP6853574 B2 JP 6853574B2
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Japan
Prior art keywords
stator
mover
movable
urging member
actuator
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JP2017119069A
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JP2019002373A (en
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智 川上
智 川上
敏幸 塩田
敏幸 塩田
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TGK Co Ltd
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TGK Co Ltd
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Priority to JP2017119069A priority Critical patent/JP6853574B2/en
Priority to KR1020180059925A priority patent/KR102378010B1/en
Priority to CN201810612484.3A priority patent/CN109139401B/en
Publication of JP2019002373A publication Critical patent/JP2019002373A/en
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Publication of JP6853574B2 publication Critical patent/JP6853574B2/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
    • F03G7/06—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like
    • F03G7/061—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like characterised by the actuating element
    • F03G7/0614—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like characterised by the actuating element using shape memory elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
    • F03G7/06—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like
    • F03G7/065—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like using a shape memory element
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00—Control
    • F05B2270/30—Control parameters, e.g. input parameters
    • F05B2270/303—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2280/00—Materials; Properties thereof
    • F05B2280/50—Intrinsic material properties or characteristics
    • F05B2280/5006—Shape memory

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
  • Transmission Devices (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Description

本発明は、形状記憶合金を用いたアクチュエータに関する。 The present invention relates to an actuator using a shape memory alloy.

従来より、小型化を図れるアクチュエータとして、形状記憶合金を用いたＳＭＡ（Shape Memory Alloy）アクチュエータが知られている。このＳＭＡアクチュエータは、形状記憶合金を用いた伸縮部材の温度変化による伸縮を利用して可動子を往復動させることが可能である。 Conventionally, an SMA (Shape Memory Alloy) actuator using a shape memory alloy has been known as an actuator that can be miniaturized. This SMA actuator can reciprocate the mover by utilizing the expansion and contraction of the expansion and contraction member using the shape memory alloy due to the temperature change.

このＳＭＡアクチュエータには、固定子からの可動子の離脱を防止するために付勢部材を組み込むことがある。特許文献１には、この付勢部材としてコイルバネを用いたＳＭＡアクチュエータが開示されている。このＳＭＡアクチュエータでは、コイルバネを収容する穴部が可動子に形成され、固定子にねじ込まれる雄ねじの頭部をコイルバネに当てることで、固定子からの可動子の離脱が防止されている。 The SMA actuator may incorporate an urging member to prevent the mover from detaching from the stator. Patent Document 1 discloses an SMA actuator using a coil spring as the urging member. In this SMA actuator, a hole for accommodating the coil spring is formed in the mover, and the head of the male screw screwed into the stator is applied to the coil spring to prevent the mover from being detached from the stator.

特開２０１４−８８８１１号公報Japanese Unexamined Patent Publication No. 2014-88811

ところで、特許文献１のＳＭＡアクチュエータでは、コイルバネを収容する穴部を可動子に形成している。これは、雄ねじと協働してコイルバネの固定子に対する位置を保持するためと考えられる。この構造のもとでは、コイルバネの外径より大きい内径の穴部を可動子に形成できるように、可動子の幅寸法を余計に確保しなければならない。また、コイルバネは螺旋状をなす複雑形状であるため、その外径の小型化には限界があり、これに伴い可動子の幅寸法の小型化が困難である。 By the way, in the SMA actuator of Patent Document 1, a hole for accommodating a coil spring is formed in a mover. It is considered that this is to maintain the position of the coil spring with respect to the stator in cooperation with the male screw. Under this structure, it is necessary to secure an extra width dimension of the mover so that a hole having an inner diameter larger than the outer diameter of the coil spring can be formed in the mover. Further, since the coil spring has a complicated spiral shape, there is a limit to the miniaturization of the outer diameter thereof, and it is difficult to miniaturize the width dimension of the mover accordingly.

本発明のある態様は、このような課題に鑑みてなされ、その目的の１つは、ＳＭＡアクチュエータの可動子の小型化を図るのに適した技術を提供することにある。 A certain aspect of the present invention is made in view of such a problem, and one of the objects thereof is to provide a technique suitable for reducing the size of the mover of the SMA actuator.

本発明の第１態様はアクチュエータである。第１態様のアクチュエータは、固定子と、前記固定子と対向し、前記固定子と対向する方向を可動方向として移動可能な可動子と、温度変化により伸縮可能な形状記憶合金を素材として構成され、前記固定子から前記可動子が離れる方向となる前記可動方向の一方側に向けて縮み変形により前記可動子を駆動可能な伸縮部材と、前記可動方向の他方側に向けて前記可動子を付勢する付勢部材と、を備え、前記付勢部材は、前記可動子から離間した箇所で前記固定子に固定される固定部と、前記可動方向の他方側に向けて前記可動子を押さえる押さえ部とを有する。 The first aspect of the present invention is an actuator. The actuator of the first aspect is composed of a stator, a mover that faces the stator and can move in the direction facing the stator as a movable direction, and a shape memory alloy that can expand and contract with a temperature change. A telescopic member capable of driving the mover by contraction deformation toward one side of the movable direction, which is the direction in which the mover is separated from the stator, and the mover attached to the other side of the movable direction. The urging member includes a urging member, and the urging member includes a fixing portion fixed to the stator at a position separated from the mover, and a presser that presses the mover toward the other side in the movable direction. Has a part.

この態様によれば、付勢部材を収容する穴部を可動子に形成しなくとも、付勢部材の固定子に対する位置を保持できる。よって、付勢部材を収容する穴部が可動子に不要となり、可動子の幅寸法の小型化を容易に図れる。 According to this aspect, the position of the urging member with respect to the stator can be maintained without forming a hole for accommodating the urging member in the mover. Therefore, the hole for accommodating the urging member is not required for the mover, and the width of the mover can be easily reduced.

第１実施形態のアクチュエータの斜視図である。It is a perspective view of the actuator of 1st Embodiment. 第１実施形態のアクチュエータの側面断面図である。It is a side sectional view of the actuator of 1st Embodiment. 第１実施形態のアクチュエータの平面図である。It is a top view of the actuator of 1st Embodiment. 図２の一部の拡大図である。It is a partial enlarged view of FIG. 第１実施形態の可動子が伸縮部材により駆動された状態を示す図である。It is a figure which shows the state which the mover of 1st Embodiment is driven by the telescopic member. 第１実施形態のアクチュエータの組み立て方法を説明するための図であり、（ａ）は固定子の上側に可動子を配置した状態を示す図であり、（ｂ）は固定子や可動子の上側に付勢部材を配置した状態を示す図である。It is a figure for demonstrating the assembling method of the actuator of 1st Embodiment, (a) is the figure which shows the state which arranged the mover on the upper side of a stator, (b) is the figure which shows the state where the mover is arranged above the stator It is a figure which shows the state which arranged the urging member in. 第１変形例の付勢部材を示す側面断面図である。It is a side sectional view which shows the urging member of the 1st modification. 第２変形例の付勢部材を示す斜視図である。It is a perspective view which shows the urging member of the 2nd modification.

以下、実施形態、変形例では、同一の構成要素に同一の符号を付し、重複する説明を省略する。また、各図面では、説明の便宜のため、構成要素の一部を適宜省略したり、構成要素の寸法を適宜拡大、縮小して示す。 Hereinafter, in the embodiments and modifications, the same components will be designated by the same reference numerals, and duplicate description will be omitted. Further, in each drawing, for convenience of explanation, some of the constituent elements are appropriately omitted, and the dimensions of the constituent elements are appropriately enlarged or reduced.

（第１実施形態）
図１は、第１実施形態のアクチュエータ１０の斜視図である。図２は、アクチュエータ１０の側面断面図である。本実施形態のアクチュエータ１０は、電気機器を操作するユーザに電気機器に対する操作に連動して触感を付与する触感付与装置として用いられる。本実施形態の電気機器はタッチパネル装置であり、触感付与対象物はタッチパネル装置のタッチパネルとなる。アクチュエータ１０は、タッチパネル装置のケーシング内に収容される。アクチュエータ１０は、可動子１４の可動方向Ｘ（後述する）の一方側を出力方向としたとき、可動子１４の出力方向での動きをタッチパネルに伝達可能に設けられる。アクチュエータ１０は、たとえば、可動子１４の出力方向がタッチパネルの面内方向又は面外方向に沿った方向となるように設けられる。 (First Embodiment)
FIG. 1 is a perspective view of the actuator 10 of the first embodiment. FIG. 2 is a side sectional view of the actuator 10. The actuator 10 of the present embodiment is used as a tactile sensation imparting device that imparts a tactile sensation to a user who operates an electric device in conjunction with an operation on the electric device. The electric device of the present embodiment is a touch panel device, and the object to be given a tactile sensation is a touch panel of the touch panel device. The actuator 10 is housed in the casing of the touch panel device. The actuator 10 is provided so that the movement of the mover 14 in the output direction can be transmitted to the touch panel when one side of the movable direction X (described later) of the mover 14 is set as the output direction. The actuator 10 is provided, for example, so that the output direction of the mover 14 is along the in-plane direction or the out-of-plane direction of the touch panel.

電気機器は、タッチパネルを出力方向とは反対側の反出力方向に向けて付勢する付勢部（不図示）を有する。タッチパネルが可動子１４により出力方向に動かされた後、可動子１４からタッチパネルへの力の伝達が解除されたとき、この付勢部の付勢力によって、可動子１４とともにタッチパネルが反出力方向に向けて押し戻される。このタッチパネルの出力方向と反出力方向への動きが瞬間的に行われることで、タッチパネルに触れているユーザにパルス状の振動が伝達され、ユーザに触感を付与することになる。 The electric device has an urging portion (not shown) that urges the touch panel toward the opposite output direction opposite to the output direction. After the touch panel is moved in the output direction by the mover 14, when the transmission of the force from the mover 14 to the touch panel is released, the urging force of the urging portion causes the touch panel together with the mover 14 to be directed in the counter-output direction. Is pushed back. By momentarily moving the touch panel in the output direction and the counter-output direction, the pulsed vibration is transmitted to the user who is touching the touch panel, and the user is given a tactile sensation.

アクチュエータ１０は、主に、固定子１２と、可動子１４と、伸縮部材１６と、付勢部材１８と、第１雄ねじ部材２０と、第２雄ねじ部材２２と、雌ねじ部材２４と、を備える。 The actuator 10 mainly includes a stator 12, a mover 14, an expansion / contraction member 16, an urging member 18, a first male screw member 20, a second male screw member 22, and a female screw member 24.

図２に示すように、固定子１２と可動子１４は対向している。可動子１４は、固定子１２と対向する方向を可動方向Ｘとして移動可能である。可動子１４は、可動子１４の出力方向となる可動方向Ｘの一方側（図２の上側）に配置され、固定子１２は、前述の反出力方向となる可動方向Ｘの他方側（図２の下側）に配置される。本実施形態では、可動方向Ｘの一方側（図２の上側）が固定子１２から可動子１４が離れる方向となり、可動方向Ｘの他方側（図２の下側）が固定子１２に可動子１４が近づく方向となる。以下、説明の便宜のため、可動子１４の可動方向Ｘのうち、固定子１２から可動子１４が離れる方向を「上」とし、固定子１２に可動子１４が近づく方向を「下」とする。 As shown in FIG. 2, the stator 12 and the mover 14 face each other. The mover 14 can move in the direction facing the stator 12 as the moveable direction X. The mover 14 is arranged on one side of the movable direction X (upper side of FIG. 2) which is the output direction of the mover 14, and the stator 12 is located on the other side of the movable direction X which is the opposite output direction (FIG. 2). It is placed on the lower side). In the present embodiment, one side of the movable direction X (upper side in FIG. 2) is the direction in which the mover 14 is separated from the stator 12, and the other side of the movable direction X (lower side in FIG. 2) is the stator 12. 14 is in the approaching direction. Hereinafter, for convenience of explanation, among the movable directions X of the mover 14, the direction in which the mover 14 separates from the stator 12 is referred to as “up”, and the direction in which the mover 14 approaches the stator 12 is referred to as “down”. ..

図３は、アクチュエータ１０の平面図である。図２、図３に示すように、固定子１２と可動子１４は、可動方向Ｘと交差する延び方向Ｙに延びている。本実施形態の延び方向Ｙは可動方向Ｘと直交している。本実施形態の固定子１２と可動子１４は直線状に延びている。以下、説明の便宜のため、可動子１４の延び方向Ｙの一方側（図２の左側）を「左」とし、他方側（図２の右側）を「右」とする。また、可動子１４の可動方向Ｘ及び延び方向Ｙに直交する方向を幅方向Ｚとする。 FIG. 3 is a plan view of the actuator 10. As shown in FIGS. 2 and 3, the stator 12 and the mover 14 extend in the extension direction Y intersecting the movable direction X. The extension direction Y of the present embodiment is orthogonal to the movable direction X. The stator 12 and the mover 14 of the present embodiment extend linearly. Hereinafter, for convenience of explanation, one side (left side in FIG. 2) of the extension direction Y of the mover 14 is referred to as “left”, and the other side (right side in FIG. 2) is referred to as “right”. Further, the direction orthogonal to the movable direction X and the extending direction Y of the mover 14 is defined as the width direction Z.

図２に示すように、固定子１２は、可動子１４の可動方向Ｘで可動子１４側（上側）に臨む箇所に第１掛け部１２ａを有する。可動子１４は、可動子１４の可動方向Ｘで固定子１２側（下側）に臨む箇所に第２掛け部１４ａを有する。第１掛け部１２ａと第２掛け部１４ａは、可動子１４の延び方向Ｙに互い違いに並ぶように配置される。 As shown in FIG. 2, the stator 12 has a first hanging portion 12a at a position facing the mover 14 side (upper side) in the movable direction X of the mover 14. The mover 14 has a second hanging portion 14a at a position facing the stator 12 side (lower side) in the movable direction X of the mover 14. The first hanging portion 12a and the second hanging portion 14a are arranged so as to be arranged alternately in the extending direction Y of the mover 14.

本実施形態の固定子１２は、可動子１４の延び方向Ｙに並ぶ複数の第１掛け部１２ａを有する。本実施形態の第１掛け部１２ａは上向きに突き出る凸状をなす。また、本実施形態の第１掛け部１２ａは上向きに凸となる曲面状をなす。複数の第１掛け部１２ａの間には第１凹部１２ｂが形成される。第１凹部１２ｂは下向きに窪んでおり、下向きに凹となる曲面状をなす。 The stator 12 of the present embodiment has a plurality of first hooking portions 12a arranged in the extending direction Y of the mover 14. The first hanging portion 12a of the present embodiment has a convex shape protruding upward. Further, the first hanging portion 12a of the present embodiment has a curved surface shape that is convex upward. A first recess 12b is formed between the plurality of first hanging portions 12a. The first concave portion 12b is recessed downward and has a curved surface shape that is concave downward.

本実施形態の可動子１４は、可動子１４の延び方向Ｙに並ぶ複数の第２掛け部１４ａを有する。本実施形態の第２掛け部１４ａは下向きに突き出る凸状をなす。また、本実施形態の第２掛け部１４ａは下向きに凸となる曲面状をなす。複数の第２掛け部１４ａの間には第２凹部１４ｂが形成される。第２凹部１４ｂは上向きに窪んでおり、上向きに凹となる曲面状をなす。 The mover 14 of the present embodiment has a plurality of second hanging portions 14a arranged in the extending direction Y of the mover 14. The second hanging portion 14a of the present embodiment has a convex shape protruding downward. Further, the second hanging portion 14a of the present embodiment has a curved surface shape that is convex downward. A second recess 14b is formed between the plurality of second hanging portions 14a. The second recess 14b is recessed upward and has a curved surface shape that is concave upward.

本実施形態では固定子１２の第１掛け部１２ａは可動子１４の第２凹部１４ｂと嵌合しており、固定子１２の第１凹部１２ｂは可動子１４の第２掛け部１４ａと嵌合している。 In the present embodiment, the first hook 12a of the stator 12 is fitted with the second recess 14b of the mover 14, and the first recess 12b of the stator 12 is fitted with the second hook 14a of the mover 14. are doing.

図４は、図２の一部の拡大図である。図３、図４に示すように、固定子１２は、可動方向Ｘから見て、可動子１４との可動方向Ｘでの対向箇所１２ｃよりはみ出るはみ出し部１２ｄを有する。本実施形態のはみ出し部１２ｄは、可動子１４との対向箇所１２ｃより延び方向Ｙの両側にはみ出る。はみ出し部１２ｄには、可動子１４との対向箇所１２ｃより可動方向Ｘでの厚み寸法が小さい薄肉部１２ｅが設けられる。薄肉部１２ｅの下側面は、固定子１２の可動子１４との対向箇所１２ｃの下側面より上側に位置し、薄肉部１２ｅの上側面は、可動子１４の上側面より下側に位置する。 FIG. 4 is an enlarged view of a part of FIG. As shown in FIGS. 3 and 4, the stator 12 has a protruding portion 12d that protrudes from the facing portion 12c in the movable direction X with the mover 14 when viewed from the movable direction X. The protruding portion 12d of the present embodiment protrudes from the portion 12c facing the mover 14 on both sides in the extending direction Y. The protruding portion 12d is provided with a thin portion 12e having a thickness smaller in the movable direction X than the portion 12c facing the mover 14. The lower side surface of the thin-walled portion 12e is located above the lower side surface of the portion 12c of the stator 12 facing the mover 14, and the upper side surface of the thin-walled portion 12e is located below the upper side surface of the mover 14.

固定子１２のはみ出し部１２ｄには第１雄ねじ部材２０、第２雄ねじ部材２２、固定用ねじ２６のそれぞれを挿通するための第１挿通孔１２ｆａ、第２挿通孔１２ｆｂ、第３挿通孔１２ｆｃが形成される。固定用ねじ２６は、アクチュエータ１０の固定相手に固定するために用いられる。本実施形態での固定相手とは、前述した電気機器のケーシングである。 The protruding portion 12d of the stator 12 has a first insertion hole 12fa, a second insertion hole 12fb, and a third insertion hole 12fc for inserting the first male screw member 20, the second male screw member 22, and the fixing screw 26, respectively. It is formed. The fixing screw 26 is used for fixing to the fixing partner of the actuator 10. The fixing partner in the present embodiment is the casing of the above-mentioned electric device.

図２に示すように、伸縮部材１６は、温度変化により伸縮可能な形状記憶合金を素材として構成される。この形状記憶合金は、たとえば、Ｎｉ−Ｔｉ合金等である。この形状記憶合金を用いた伸縮部材１６は、加熱により縮み変形可能であるとともに冷却により伸び変形可能である。本実施形態の伸縮部材１６は線状のワイヤーであるが、帯状のベルト等でもよい。 As shown in FIG. 2, the expansion / contraction member 16 is made of a shape memory alloy that can be expanded / contracted by changing the temperature. This shape memory alloy is, for example, a Ni—Ti alloy or the like. The stretchable member 16 using this shape memory alloy can be shrunk and deformed by heating and can be stretched and deformed by cooling. The telescopic member 16 of the present embodiment is a linear wire, but a band-shaped belt or the like may also be used.

伸縮部材１６は、固定子１２の第１掛け部１２ａと可動子１４の第２掛け部１４ａに交互に掛けるように可動子１４の延び方向Ｙに張り渡される。詳しくは、伸縮部材１６は、可動子１４の可動方向Ｘで第１掛け部１２ａの可動子１４側（上側）に臨む箇所と、その可動方向Ｘで第２掛け部１４ａの固定子１２側（下側）に臨む箇所とに交互に掛けるように張り渡される。固定子１２の第１掛け部１２ａと可動子１４の第２掛け部１４ａの幅方向Ｚ中央部には溝部３０（図４参照）が形成される。伸縮部材１６は、固定子１２や可動子１４の溝部３０の内側を通るように配置される。 The telescopic member 16 is stretched in the extending direction Y of the stator 14 so as to alternately hang on the first hanging portion 12a of the stator 12 and the second hanging portion 14a of the mover 14. Specifically, the telescopic member 16 faces a portion facing the mover 14 side (upper side) of the first hanging portion 12a in the movable direction X of the mover 14, and a stator 12 side (upper side) of the second hanging portion 14a in the movable direction X. It is stretched so that it hangs alternately with the part facing the lower side). A groove 30 (see FIG. 4) is formed at the center of the first hook 12a of the stator 12 and the second hook 14a of the mover 14 in the width direction Z. The telescopic member 16 is arranged so as to pass through the inside of the groove 30 of the stator 12 and the mover 14.

伸縮部材１６は、張力を付与された状態で、第１雄ねじ部材２０を用いて両端部１６ａ、１６ｂが固定される。本実施形態の伸縮部材１６は固定子１２のはみ出し部１２ｄに両端部１６ａ、１６ｂが固定される。伸縮部材１６の端部１６ａ、１６ｂは、第１雄ねじ部材２０の軸部２０ｂに巻き付けた状態で固定される。伸縮部材１６の両端部１６ａ，１６ｂは、不図示の外部電源回路に電気配線を介して電気的に接続される。 Both ends 16a and 16b of the telescopic member 16 are fixed by using the first male screw member 20 in a state where tension is applied. In the telescopic member 16 of the present embodiment, both end portions 16a and 16b are fixed to the protruding portion 12d of the stator 12. The ends 16a and 16b of the telescopic member 16 are fixed in a state of being wound around the shaft portion 20b of the first male screw member 20. Both ends 16a and 16b of the telescopic member 16 are electrically connected to an external power supply circuit (not shown) via electrical wiring.

付勢部材１８は、固定子１２からの可動子１４の離脱を防止するために用いられる。本実施形態の付勢部材１８は、固定子１２や可動子１４の左側部分と右側部分のそれぞれに対応して個別に設けられる。 The urging member 18 is used to prevent the mover 14 from coming off the stator 12. The urging member 18 of the present embodiment is individually provided corresponding to each of the left side portion and the right side portion of the stator 12 and the mover 14.

図４に示すように、付勢部材１８は、可動子１４から離間した箇所で固定子１２に固定される固定部１８ａと、可動子１４を下側（可動方向Ｘの他方側）に向けて押さえる押さえ部１８ｂとを有する。本実施形態では、固定部１８ａが延び方向Ｙの片端側に設けられ、押さえ部１８ｂが固定部１８ａとは延び方向Ｙの反対端側に設けられる。 As shown in FIG. 4, the urging member 18 has a fixing portion 18a fixed to the stator 12 at a position separated from the mover 14, and the mover 14 is directed downward (the other side in the movable direction X). It has a pressing portion 18b for pressing. In the present embodiment, the fixing portion 18a is provided on one end side in the extending direction Y, and the pressing portion 18b is provided on the opposite end side in the extending direction Y from the fixing portion 18a.

固定部１８ａは、固定子１２のはみ出し部１２ｄの上側に配置され、固定子１２のはみ出し部１２ｄに第２雄ねじ部材２２を用いて固定される。詳しくは、固定部１８ａは、第２雄ねじ部材２２の頭部２２ａと固定子１２のはみ出し部１２ｄの間に挟み込むことで固定子１２に固定される。 The fixing portion 18a is arranged above the protruding portion 12d of the stator 12, and is fixed to the protruding portion 12d of the stator 12 by using the second male screw member 22. Specifically, the fixing portion 18a is fixed to the stator 12 by sandwiching it between the head portion 22a of the second male screw member 22 and the protruding portion 12d of the stator 12.

押さえ部１８ｂは、固定部１８ａから延びており、その延び方向Ｙの先端側部分が可動子１４の上側に配置される。押さえ部１８ｂは、可動子１４の可動方向Ｘでの動きに追従して可動方向Ｘに弾性変形可能である。本実施形態の押さえ部１８ｂは板状をなす板ばねとして機能する。本実施形態の押さえ部１８ｂは、幅方向Ｚに沿った寸法である幅寸法が固定部１８ａより小さくなるように形成される（図３参照）。 The pressing portion 18b extends from the fixing portion 18a, and the tip end side portion in the extending direction Y is arranged above the mover 14. The pressing portion 18b can be elastically deformed in the movable direction X following the movement of the mover 14 in the movable direction X. The pressing portion 18b of the present embodiment functions as a leaf spring having a plate shape. The pressing portion 18b of the present embodiment is formed so that the width dimension, which is the dimension along the width direction Z, is smaller than that of the fixing portion 18a (see FIG. 3).

本実施形態の押さえ部１８ｂは、固定部１８ａから上側に向けて延びる第１部分１８ｂａと、第１部分１８ｂａと曲げ部分１８ｂｂを介して連なり延び方向Ｙに沿うように延びる第２部分１８ｂｃとを有する。押さえ部１８ｂの第２部分１８ｂｃは第１雄ねじ部材２０の上側を通るように配置される。 The pressing portion 18b of the present embodiment includes a first portion 18ba extending upward from the fixing portion 18a, and a second portion 18bc connected via the first portion 18ba and the bending portion 18bb and extending along the extending direction Y. Have. The second portion 18bc of the pressing portion 18b is arranged so as to pass above the first male screw member 20.

以上の付勢部材１８の固定部１８ａ及び押さえ部１８ｂは、本実施形態において、固定子１２に対して上側（可動方向Ｘの一方側）に全体が配置される。付勢部材１８の固定部１８ａ及び押さえ部１８ｂは、固定子１２の上側にのみ配置され、固定子１２に対して下側には配置されないということである。別の観点からみると、本実施形態の付勢部材１８は、固定子１２に対して可動方向Ｘに重なる範囲では、固定子１２に対して上側に配置されるともいえる。 In the present embodiment, the fixing portion 18a and the pressing portion 18b of the urging member 18 are all arranged on the upper side (one side of the movable direction X) with respect to the stator 12. The fixing portion 18a and the pressing portion 18b of the urging member 18 are arranged only on the upper side of the stator 12, not on the lower side with respect to the stator 12. From another point of view, it can be said that the urging member 18 of the present embodiment is arranged above the stator 12 as long as it overlaps the stator 12 in the movable direction X.

第１雄ねじ部材２０は、伸縮部材１６と固定子１２を締結する。第２雄ねじ部材２２は、付勢部材１８と固定子１２を締結する。各雄ねじ部材２０、２２は固定子１２の左側部分と右側部分のそれぞれに対応して個別に設けられる（図２も参照）。 The first male screw member 20 fastens the telescopic member 16 and the stator 12. The second male screw member 22 fastens the urging member 18 and the stator 12. The male screw members 20 and 22 are individually provided corresponding to the left side portion and the right side portion of the stator 12 (see also FIG. 2).

雄ねじ部材２０、２２の頭部２０ａ、２２ａは、固定子１２のはみ出し部１２ｄの上側面に設けられた座面１２ｇに座している。本実施形態の第１雄ねじ部材２０や第２雄ねじ部材２２の頭部２０ａ、２２ａは共通の電極部材３２を介して固定子１２の座面１２ｇに座している。この電極部材３２は、固定子１２のはみ出し部１２ｄの上側面と重ね合わせられ、延び方向Ｙに延びる板状をなす。電極部材３２は真鍮等の導電性素材を用いて構成される。固定子１２の左右両側の電極部材３２は不図示の外部電源回路に接続され、伸縮部材１６への通電に用いられる。本実施形態の電極部材３２は、固定用ねじ２６を介して外部電源回路に接続される。 The heads 20a and 22a of the male screw members 20 and 22 are seated on a seating surface 12g provided on the upper side surface of the protruding portion 12d of the stator 12. The heads 20a and 22a of the first male screw member 20 and the second male screw member 22 of the present embodiment are seated on the seating surface 12g of the stator 12 via a common electrode member 32. The electrode member 32 is overlapped with the upper side surface of the protruding portion 12d of the stator 12 to form a plate extending in the extending direction Y. The electrode member 32 is made of a conductive material such as brass. The electrode members 32 on the left and right sides of the stator 12 are connected to an external power supply circuit (not shown) and used to energize the telescopic member 16. The electrode member 32 of this embodiment is connected to an external power supply circuit via a fixing screw 26.

第１雄ねじ部材２０は、固定子１２の座面１２ｇと第１雄ねじ部材２０の頭部２０ａの間で伸縮部材１６を挟持することで伸縮部材１６を固定子１２に締結する。本実施形態では第１雄ねじ部材２０の頭部２０ａと伸縮部材１６の間には板状の押さえ部材３４が配置される。本実施形態の第１雄ねじ部材２０は、固定子１２の座面１２ｇと押さえ部材３４の間に伸縮部材１６を挟持することで伸縮部材１６を固定子１２に締結する。伸縮部材１６は、電極部材３２と押さえ部材３４に対する接触を伴いこれらに挟持される。なお、第１雄ねじ部材２０や押さえ部材３４は、導電性素材を用いて構成される。 The first male screw member 20 fastens the elastic member 16 to the stator 12 by sandwiching the elastic member 16 between the seat surface 12 g of the stator 12 and the head portion 20a of the first male screw member 20. In the present embodiment, a plate-shaped pressing member 34 is arranged between the head portion 20a of the first male screw member 20 and the telescopic member 16. The first male screw member 20 of the present embodiment fastens the expansion / contraction member 16 to the stator 12 by sandwiching the expansion / contraction member 16 between the seat surface 12g of the stator 12 and the pressing member 34. The telescopic member 16 is sandwiched between the electrode member 32 and the pressing member 34 with contact with each other. The first male screw member 20 and the pressing member 34 are made of a conductive material.

雌ねじ部材２４は、固定子１２を挟んで可動子１４とは可動方向Ｘの反対側、つまり、固定子１２の下側に配置される。本実施形態の雌ねじ部材２４は、固定子１２の左側部分と右側部分のそれぞれに対応して個別に設けられる（図２も参照）。本実施形態の雌ねじ部材２４は、固定子１２のはみ出し部１２ｄの下側に配置される。本実施形態の雌ねじ部材２４は板状をなしており、固定子１２のはみ出し部１２ｄの下側面に重ね合わせられる。本実施形態の雌ねじ部材２４の下側面は、固定子１２の可動子１４との対向箇所１２ｃの下側面と面一をなすように設けられる。 The female screw member 24 is arranged on the side opposite to the mover 14 in the movable direction X with the stator 12 interposed therebetween, that is, on the lower side of the stator 12. The female screw member 24 of the present embodiment is individually provided corresponding to each of the left side portion and the right side portion of the stator 12 (see also FIG. 2). The female screw member 24 of the present embodiment is arranged below the protruding portion 12d of the stator 12. The female screw member 24 of the present embodiment has a plate shape and is superposed on the lower side surface of the protruding portion 12d of the stator 12. The lower side surface of the female screw member 24 of the present embodiment is provided so as to be flush with the lower side surface of the portion 12c of the stator 12 facing the mover 14.

本実施形態の雌ねじ部材２４には、第１雄ねじ部材２０用の第１雌ねじ孔２４ａと第２雄ねじ部材２２用の第２雌ねじ孔２４ｂが形成される。雄ねじ部材２０、２２は、雌ねじ部材２４の対応する雌ねじ孔２４ａ、２４ｂにねじ込まれることで、雄ねじ部材２０、２２による締結対象と固定子１２を締結する。ここでの締結対象とは、第１雄ねじ部材２０では伸縮部材１６が該当し、第２雄ねじ部材２２では付勢部材１８が該当する。 The female screw member 24 of the present embodiment is formed with a first female screw hole 24a for the first male screw member 20 and a second female screw hole 24b for the second male screw member 22. The male screw members 20 and 22 are screwed into the corresponding female screw holes 24a and 24b of the female screw member 24 to fasten the stator 12 to the object to be fastened by the male screw members 20 and 22. The fastening target here corresponds to the expansion / contraction member 16 in the first male screw member 20 and the urging member 18 in the second male screw member 22.

なお、固定子１２や可動子１４は、加熱により縮み変形した伸縮部材１６の放熱性を高めるため、熱伝導率に優れた素材を用いて構成される。本実施形態の固定子１２や可動子１４はアルミニウムを用いて構成される。また、固定子１２や可動子１４は、アクチュエータ１０の動作時に通電状態になる伸縮部材１６から絶縁するため、表面に絶縁層（不図示）が被覆されている。絶縁層は、たとえば、アルマイト処理により得られるアルマイト層等である。 The stator 12 and the mover 14 are made of a material having excellent thermal conductivity in order to improve the heat dissipation of the elastic member 16 that has been shrunk and deformed by heating. The stator 12 and the mover 14 of the present embodiment are made of aluminum. Further, since the stator 12 and the mover 14 are insulated from the expansion / contraction member 16 which is energized when the actuator 10 is operated, the surface thereof is covered with an insulating layer (not shown). The insulating layer is, for example, an alumite layer obtained by anodizing.

アクチュエータ１０の動作を説明する。
図５は、可動子１４が伸縮部材１６により駆動された状態を示す図である。伸縮部材１６は、外部電源回路から電気配線を介して通電されると、通電加熱により縮み変形しようとする。これにより、伸縮部材１６は、可動子１４を上側（可動方向Ｘの一方側）に向かう方向Ｐａに押圧することで、可動子１４を同方向Ｐａに駆動する。 The operation of the actuator 10 will be described.
FIG. 5 is a diagram showing a state in which the mover 14 is driven by the telescopic member 16. When the telescopic member 16 is energized from an external power supply circuit via electrical wiring, the telescopic member 16 tends to shrink and deform due to energization heating. As a result, the telescopic member 16 drives the mover 14 in the same direction Pa by pressing the mover 14 in the direction Pa toward the upper side (one side of the movable direction X).

可動子１４が上側に変位すると、付勢部材１８の押さえ部１８ｂは、可動子１４の変位に追従して上側に向かう方向Ｐｂに弾性的に曲げ変形する。付勢部材１８の押さえ部１８ｂは、自らの弾性変形量に応じた大きさの反発力を付勢力として可動子１４に付与する。この付勢力は、可動子１４の下側（可動方向の他方側）に向けて可動子１４に付与される。 When the mover 14 is displaced upward, the pressing portion 18b of the urging member 18 elastically bends and deforms in the upward direction Pb following the displacement of the mover 14. The pressing portion 18b of the urging member 18 applies a repulsive force having a magnitude corresponding to its own elastic deformation amount to the mover 14 as an urging force. This urging force is applied to the mover 14 toward the lower side (the other side in the movable direction) of the mover 14.

伸縮部材１６は、外部電源回路による通電状態を解除すると、放熱することで元の形状に戻るように伸び変形する。これに伴い、可動子１４は、電気機器の付勢部の付勢力や付勢部材１８の付勢力により、伸縮部材１６により駆動される前の元の位置に向けて押し戻される。 The telescopic member 16 expands and deforms so as to return to its original shape by dissipating heat when the energized state by the external power supply circuit is released. Along with this, the mover 14 is pushed back toward the original position before being driven by the telescopic member 16 by the urging force of the urging portion of the electric device or the urging force of the urging member 18.

アクチュエータ１０の効果を説明する。
本実施形態の付勢部材１８は、可動子１４から離間した箇所で固定子１２に固定される固定部１８ａと、可動子１４を下側（可動方向Ｘの他方側）に向けて押さえられる押さえ部１８ｂとを有する。この構造のもとでは、特許文献１の開示技術のように、コイルバネを収容する穴部を可動子に形成しなくとも、付勢部材１８の固定子１２に対する位置を保持できる。よって、付勢部材を収容する穴部が可動子１４に不要となり、可動子１４の幅寸法の小型化を容易に図れる。 The effect of the actuator 10 will be described.
The urging member 18 of the present embodiment has a fixing portion 18a fixed to the stator 12 at a position separated from the mover 14, and a presser that holds the mover 14 downward (the other side in the movable direction X). It has a part 18b. Under this structure, the position of the urging member 18 with respect to the stator 12 can be maintained without forming a hole for accommodating the coil spring in the mover as in the technique disclosed in Patent Document 1. Therefore, the hole portion for accommodating the urging member is not required for the mover 14, and the width dimension of the mover 14 can be easily reduced.

また、付勢部材を収容する穴部が可動子１４に不要となることに伴い、次の利点がある。形状記憶合金は、形状記憶合金に応じた変態温度以上の温度に加熱されることで原型に復元する性質がある。この変態温度は、形状記憶合金に付与される応力の増大に伴い高温化することが知られる。形状記憶合金製の伸縮部材１６の誤作動を防ぐ観点からは、アクチュエータ１０の動作環境下での温度に対して、伸縮部材１６の変態温度が十分に高温であること好ましい。この目的を果たすうえで、所要の伸縮部材１６の変態温度を得られるように、付勢部材１８の押さえ力を伸縮部材１６に付与する手段が考えられる。 Further, the movable element 14 does not need a hole for accommodating the urging member, which has the following advantages. The shape memory alloy has the property of restoring to its original shape by being heated to a temperature higher than the transformation temperature according to the shape memory alloy. It is known that this transformation temperature increases as the stress applied to the shape memory alloy increases. From the viewpoint of preventing the expansion / contraction member 16 made of shape memory alloy from malfunctioning, it is preferable that the transformation temperature of the expansion / contraction member 16 is sufficiently higher than the temperature of the actuator 10 in the operating environment. In order to achieve this purpose, it is conceivable to apply a pressing force of the urging member 18 to the telescopic member 16 so that a required transformation temperature of the telescopic member 16 can be obtained.

ここで、特許文献１のコイルバネを付勢部材として用いた場合、付勢部材１８の押さえ力を大きくするためには、コイルスプリングの線径の増大、巻き数の増大が想定される。しかしながら、コイルスプリングの線径を増大させた場合、可動子に形成される穴部の内径寸法が増大し、可動子の幅寸法の増大を招く。また、コイルスプリングの巻き数を増大させた場合、可動子に形成される穴部の深さ寸法が増大し、可動子の高さ寸法の増大を招く。つまり、特許文献１の構造のもとでは、付勢部材１８の押さえ力を大きくするうえで、可動子の幅寸法又は高さ寸法が増大してしまう。 Here, when the coil spring of Patent Document 1 is used as the urging member, it is expected that the wire diameter of the coil spring and the number of turns are increased in order to increase the pressing force of the urging member 18. However, when the wire diameter of the coil spring is increased, the inner diameter dimension of the hole formed in the mover increases, which leads to an increase in the width dimension of the mover. Further, when the number of turns of the coil spring is increased, the depth dimension of the hole formed in the mover increases, which leads to an increase in the height dimension of the mover. That is, under the structure of Patent Document 1, the width dimension or the height dimension of the mover increases in order to increase the pressing force of the urging member 18.

これに対して、本実施形態によれば、押さえ部１８ｂの固定部１８ａからの長さの低減や、押さえ部１８ｂの厚みの増大によって、付勢部材１８の押さえ力を大きくできる。この押さえ部１８ｂは、特許文献１の構造のように、可動子の穴部内に配置されるものではなく、可動子１４を可動方向Ｘの上側から押さえているに過ぎない。よって、押さえ部１８ｂの長さの低減や、押さえ部１８ｂの厚みの増大があっても、可動子１４の幅寸法や高さ寸法が増大しない。このため、伸縮部材１６の変態温度の高温化を果たすため、付勢部材１８の押さえ力を大きくするように設計しても、可動子１４の寸法の増大を防止できる利点がある。 On the other hand, according to the present embodiment, the pressing force of the urging member 18 can be increased by reducing the length of the pressing portion 18b from the fixed portion 18a and increasing the thickness of the pressing portion 18b. The pressing portion 18b is not arranged in the hole portion of the mover as in the structure of Patent Document 1, but merely presses the mover 14 from the upper side in the movable direction X. Therefore, even if the length of the pressing portion 18b is reduced or the thickness of the pressing portion 18b is increased, the width dimension and the height dimension of the mover 14 do not increase. Therefore, since the transformation temperature of the telescopic member 16 is raised, there is an advantage that the size of the mover 14 can be prevented from increasing even if the pressing force of the urging member 18 is designed to be increased.

かりに、締結対象を固定子１２に締結するにあたり、固定子１２に雄ねじ部材２０、２２をねじ込む場合を考える。この場合、雄ねじ部材２０、２２のねじ込みに伴い固定子１２の絶縁層が削れてしまい、導電性のある固定子１２の素地部が露出してしまう恐れがある。この点、本実施形態の雄ねじ部材２０、２２は、雌ねじ部材２４の雌ねじ孔２４ａ、２４ｂにねじ込まれることで締結対象と固定子１２を締結する。よって、締結対象を固定子１２に締結するにあたり、固定子１２へのねじ込みが不要となる。このため、雄ねじ部材２０、２２のねじ込みに伴い固定子１２の絶縁層が削れてしまう事態を防止でき、良好な絶縁信頼性を得られる。 Consider the case where the male screw members 20 and 22 are screwed into the stator 12 when the object to be fastened is fastened to the stator 12. In this case, the insulating layer of the stator 12 may be scraped as the male screw members 20 and 22 are screwed in, and the base portion of the conductive stator 12 may be exposed. In this respect, the male screw members 20 and 22 of the present embodiment are screwed into the female screw holes 24a and 24b of the female screw member 24 to fasten the fastening target and the stator 12. Therefore, when fastening the fastening target to the stator 12, it is not necessary to screw it into the stator 12. Therefore, it is possible to prevent the insulating layer of the stator 12 from being scraped due to the screwing of the male screw members 20 and 22, and good insulation reliability can be obtained.

次に、アクチュエータ１０の組み立て方法の一例を説明する。
図６は、アクチュエータ１０の組み立て方法を説明するための側面図である。図６（ａ）では、固定子１２と可動子１４の間に伸縮部材１６を挟み込む前の工程を示す。固定子１２と可動子１４の間に弛んだ状態で伸縮部材１６が挟み込まれてしまうと、その後に伸縮部材１６に両端側から張力を付与しても、固定子１２や可動子１４との摩擦により伸縮部材１６の一部の弛みが解消しない事態があり得る。この状態のまま伸縮部材１６が雄ねじ部材により固定子１２に締結されてしまうと、動作不良の原因となり得る。これを避けるため、伸縮部材１６には予め張力を付与しておき、その状態で可動子１４を動かすことで固定子１２と可動子１４の間に挟み込むようにする。この後は、伸縮部材１６に張力を付与した状態のまま、第１雄ねじ部材２０を用いて伸縮部材１６を固定子１２に締結する。 Next, an example of how to assemble the actuator 10 will be described.
FIG. 6 is a side view for explaining a method of assembling the actuator 10. FIG. 6A shows a step before sandwiching the expansion / contraction member 16 between the stator 12 and the mover 14. If the telescopic member 16 is sandwiched between the stator 12 and the mover 14 in a loosened state, friction with the stator 12 and the mover 14 even if tension is subsequently applied to the telescopic member 16 from both ends. As a result, there may be a situation where the slack of a part of the telescopic member 16 is not eliminated. If the telescopic member 16 is fastened to the stator 12 by the male screw member in this state, it may cause a malfunction. In order to avoid this, tension is applied to the telescopic member 16 in advance, and the mover 14 is moved in that state so as to be sandwiched between the stator 12 and the mover 14. After that, the expansion / contraction member 16 is fastened to the stator 12 by using the first male screw member 20 while the tension is applied to the expansion / contraction member 16.

次に、図６（ｂ）に示すように、固定子１２や可動子１４の上側に付勢部材１８を配置する。この後、付勢部材１８を下側に動かすことで、付勢部材１８の押さえ部１８ｂを可動子１４に接触させるとともに付勢部材１８の固定部１８ａを固定子１２に当てる。この状態のもと、第２雄ねじ部材２２を用いて付勢部材１８の固定部１８ａを固定子１２に締結する。 Next, as shown in FIG. 6B, the urging member 18 is arranged above the stator 12 and the mover 14. After that, by moving the urging member 18 downward, the holding portion 18b of the urging member 18 is brought into contact with the mover 14, and the fixing portion 18a of the urging member 18 is brought into contact with the stator 12. Under this state, the fixing portion 18a of the urging member 18 is fastened to the stator 12 by using the second male screw member 22.

ここで、付勢部材１８の固定部１８ａ及び押さえ部１８ｂは、固定子１２に対して上側（可動方向Ｘの一方側）に全体が配置されている。よって、固定子１２に付勢部材１８を組み付けるにあたり、固定子１２に対して下側（可動方向Ｘの他方側）に付勢部材１８の固定部１８ａや押さえ部１８ｂを配置する作業が不要となる。これにより、固定子１２に対して上側の空間のみを作業空間として、付勢部材１８を固定子１２に組み付け可能となる。このため、付勢部材１８の組み付け作業で良好な作業性を得られるうえ、付勢部材１８の組み付け作業の自動化が容易となる。 Here, the fixing portion 18a and the pressing portion 18b of the urging member 18 are entirely arranged on the upper side (one side of the movable direction X) with respect to the stator 12. Therefore, when assembling the urging member 18 to the stator 12, it is not necessary to arrange the fixing portion 18a and the pressing portion 18b of the urging member 18 on the lower side (the other side of the movable direction X) with respect to the stator 12. Become. As a result, the biasing member 18 can be assembled to the stator 12 with only the space above the stator 12 as the working space. Therefore, good workability can be obtained in the assembling work of the urging member 18, and the assembling work of the urging member 18 can be easily automated.

また、付勢部材１８の固定部１８ａは、固定子１２のはみ出し部１２ｄに固定される。これにより、可動子１４と固定子１２の間に付勢部材１８を配置しないレイアウトを実現できる。よって、図６（ｂ）に示すように、固定子１２や可動子１４に対して上側に配置した付勢部材１８を、固定子１２や可動子１４に対して下側に近づけるだけで、付勢部材１８を固定予定位置に配置できる。これにより、付勢部材１８の組み付け作業でより良好な作業性を得られるうえ、付勢部材１８の組み付け作業の自動化が更に容易となる。 Further, the fixing portion 18a of the urging member 18 is fixed to the protruding portion 12d of the stator 12. As a result, it is possible to realize a layout in which the urging member 18 is not arranged between the mover 14 and the stator 12. Therefore, as shown in FIG. 6B, the biasing member 18 arranged on the upper side with respect to the stator 12 and the mover 14 is attached by simply bringing it closer to the lower side with respect to the stator 12 and the mover 14. The force member 18 can be arranged at a fixed planned position. As a result, better workability can be obtained in the assembling work of the urging member 18, and automation of the assembling work of the urging member 18 becomes easier.

かりに、伸縮部材１６と付勢部材１８を単一の雄ねじ部材を用いて固定子１２に締結する場合を考える。この場合、前述した次の作業（Ｘ）、（Ｙ）を同時に進行する必要がある。この作業では、所要の張力を伸縮部材１６に付与した状態のまま、可動子１４や付勢部材１８の位置合わせ作業をしつつ雄ねじ部材を締結することになり、高い作業難度を要求されることに伴い作業性が悪いという問題がある。
（Ｘ）伸縮部材１６に張力を付与した状態のもと、可動子１４を動かすことで固定子１２と可動子１４の間に伸縮部材１６を挟み込んだうえで、その張力が付与された伸縮部材１６を雄ねじ部材を用いて固定子１２に締結する作業。
（Ｙ）可動子１４の上側に一部が配置される付勢部材１８を伸縮部材１６と同じ雄ねじ部材を用いて固定子１２に締結する作業。 Consider a case where the telescopic member 16 and the urging member 18 are fastened to the stator 12 using a single male screw member. In this case, it is necessary to simultaneously proceed with the following operations (X) and (Y) described above. In this work, the male screw member is fastened while the movable element 14 and the urging member 18 are aligned while the required tension is applied to the telescopic member 16, which requires a high degree of work difficulty. As a result, there is a problem that workability is poor.
(X) Under the state where tension is applied to the telescopic member 16, the telescopic member 16 is sandwiched between the stator 12 and the mover 14 by moving the mover 14, and then the stretchable member to which the tension is applied. Work of fastening 16 to the stator 12 using a male screw member.
(Y) An operation of fastening a biasing member 18 whose part is arranged on the upper side of the mover 14 to the stator 12 using the same male screw member as the telescopic member 16.

この点、本実施形態では、伸縮部材１６と付勢部材１８は個別の雄ねじ部材２０、２２を用いて固定子１２に締結される。よって、第１雄ねじ部材２０を用いて伸縮部材１６を先に固定子１２に締結してから、第２雄ねじ部材２２を用いて付勢部材１８を後で固定子１２に締結できるようになる。よって、前述した作業（Ｘ）、（Ｙ）を同時ではなく順次に行えるようになり、作業難度の低下により良好な作業性を得られる。 In this respect, in the present embodiment, the telescopic member 16 and the urging member 18 are fastened to the stator 12 by using the individual male screw members 20 and 22. Therefore, the telescopic member 16 can be fastened to the stator 12 first by using the first male screw member 20, and then the urging member 18 can be fastened to the stator 12 later by using the second male screw member 22. Therefore, the above-mentioned operations (X) and (Y) can be performed sequentially instead of simultaneously, and good workability can be obtained by reducing the work difficulty.

アクチュエータ１０の他の工夫点を説明する。
図３、図４に示すように、付勢部材１８の押さえ部１８ｂは、可動子１４の一部と延び方向Ｙでの位置が重なるように配置される。可動子１４には、付勢部材１８の押さえ部１８ｂと可動方向Ｘに対向する箇所に溝部１４ｃが形成される。付勢部材１８の押さえ部１８ｂは、可動子１４の溝部１４ｃ内に収まるように配置される。付勢部材１８の押さえ部１８ｂは、その押さえ部１８ｂと延び方向Ｙでの位置が重なる可動子１４の一部が幅方向Ｚ両側に変位しようとしたとき、可動子１４の溝部１４ｃと接触することで、その幅方向Ｚ両側への変位を規制する。このように、付勢部材１８の押さえ部１８ｂは、延び方向Ｙでの位置が重なる可動子１４の一部の幅方向Ｚ両側への変位を規制する第１変位規制部１８ｄとして機能する。 Other ingenuity of the actuator 10 will be described.
As shown in FIGS. 3 and 4, the pressing portion 18b of the urging member 18 is arranged so that a part of the mover 14 and the position in the extending direction Y overlap. A groove portion 14c is formed in the mover 14 at a position facing the pressing portion 18b of the urging member 18 and the movable direction X. The pressing portion 18b of the urging member 18 is arranged so as to fit in the groove portion 14c of the mover 14. The pressing portion 18b of the urging member 18 comes into contact with the groove portion 14c of the mover 14 when a part of the mover 14 whose position overlaps the pressing portion 18b in the extending direction Y is about to be displaced to both sides in the width direction Z. This regulates the displacement to both sides in the width direction Z. In this way, the pressing portion 18b of the urging member 18 functions as a first displacement regulating portion 18d that regulates the displacement of a part of the mover 14 whose positions overlap in the extending direction Y to both sides in the width direction Z.

これにより、付勢部材１８の第１変位規制部１８ｄを用いて可動子１４の幅方向Ｚでの位置決めをできる。また、可動子１４の可動方向Ｘの方向軸周りでの可動子１４の位置ずれを付勢部材１８の第１変位規制部１８ｄにより防止でき、その位置ずれに起因する可動子１４の固定子１２からの分離を防止できる。 As a result, the mover 14 can be positioned in the width direction Z using the first displacement restricting portion 18d of the urging member 18. Further, the displacement of the mover 14 around the direction axis of the movable direction X of the mover 14 can be prevented by the first displacement restricting portion 18d of the urging member 18, and the stator 12 of the mover 14 due to the displacement can be prevented. Can be prevented from separating from.

図３に示すように、付勢部材１８の全体は、可動子１４の可動方向Ｘから見て、可動子１４の幅方向両側の側面１４ｄに対して幅方向Ｚ内側に収まる形状である。ここでの「収まる」には、可動子１４の側面１４ｄと言及している構成要素（ここでは付勢部材１８）の側面が重なる場合と、可動子１４の側面１４ｄより幅方向Ｚ内側に言及している構成要素の側面が位置する場合の両方が含まれる。つまり、付勢部材１８の全体は、可動子１４の可動方向Ｘから見て、可動子１４の側面１４ｄより幅方向外側にはみ出ない形状であるといえる。これにより、可動子１４の側面１４ｄから付勢部材１８がはみ出なくなるため、可動子１４に連動して付勢部材１８が動いたとき、付勢部材１８の周辺構造物との干渉を避け易くなる。なお、固定子１２の全体も、可動子１４の可動方向Ｘから見て、可動子１４の幅方向Ｚ両側の側面１４ｄに対して幅方向内側に収まる形状である。 As shown in FIG. 3, the entire urging member 18 has a shape that fits inside the width direction Z with respect to the side surfaces 14d on both sides of the mover 14 in the width direction when viewed from the movable direction X of the mover 14. Here, "fitting" refers to the case where the side surfaces of the component (here, the urging member 18) referred to as the side surface 14d of the mover 14 overlap, and the case where the side surface 14d of the mover 14 is inside the width direction Z. Includes both when the sides of the component are located. That is, it can be said that the entire urging member 18 has a shape that does not protrude outward in the width direction from the side surface 14d of the mover 14 when viewed from the movable direction X of the mover 14. As a result, the urging member 18 does not protrude from the side surface 14d of the mover 14, so that when the urging member 18 moves in conjunction with the mover 14, it becomes easier to avoid interference with the peripheral structure of the urging member 18. .. The entire stator 12 also has a shape that fits inside in the width direction with respect to the side surfaces 14d on both sides of the width direction Z of the mover 14 when viewed from the movable direction X of the mover 14.

図４に示すように、固定子１２のはみ出し部１２ｄの上側面には、はみ出し部１２ｄの座面１２ｇより第１掛け部１２ａ寄りの箇所に、はみ出し部１２ｄの座面１２ｇより上側に突き出る山部１２ｈが形成される。山部１２ｈは第１掛け部１２ａの一部として設けられ、伸縮部材１６の一部が接触している。 As shown in FIG. 4, on the upper side surface of the protruding portion 12d of the stator 12, a mountain protruding above the seating surface 12g of the protruding portion 12d at a position closer to the first hanging portion 12a than the seating surface 12g of the protruding portion 12d. The portion 12h is formed. The mountain portion 12h is provided as a part of the first hanging portion 12a, and a part of the expansion / contraction member 16 is in contact with the mountain portion 12h.

本実施形態の付勢部材１８の押さえ部１８ｂは、可動子１４と可動方向Ｘに対向する箇所に下側に向けて円弧状に凸となる曲げ部１８ｃを有し、その曲げ部１８ｃが可動子１４に接触している。かりに、付勢部材１８が押さえ部１８ｂの先端のエッジ部で可動子１４に接触してしまうと、可動子１４の絶縁層が削れる事態が懸念される。この点、本実施形態によれば、付勢部材１８の押さえ部１８ｂとの接触により可動子１４が削れてしまう事態を防止でき、良好な絶縁信頼性を得られる。 The pressing portion 18b of the urging member 18 of the present embodiment has a bent portion 18c that is convex downward in an arc shape at a position facing the mover 14 and the movable direction X, and the bent portion 18c is movable. It is in contact with the child 14. If the urging member 18 comes into contact with the mover 14 at the edge of the tip of the holding portion 18b, there is a concern that the insulating layer of the mover 14 may be scraped. In this respect, according to the present embodiment, it is possible to prevent the mover 14 from being scraped due to contact with the pressing portion 18b of the urging member 18, and good insulation reliability can be obtained.

押さえ部材３４は、伸縮部材１６より低硬度の素材を用いて構成される。第１雄ねじ部材２０は、通常、伸縮部材１６より高硬度となる。よって、かりに、第１雄ねじ部材２０の頭部２０ａを伸縮部材１６に直接に接触させた場合、高硬度な第１雄ねじ部材２０との接触に伴う伸縮部材１６の負担の増大が懸念される。この点、本実施形態によれば、押さえ部材３４が伸縮部材１６より低硬度であるため、第１雄ねじ部材２０との接触から伸縮部材１６を保護でき、伸縮部材１６の負担を軽減できる。 The pressing member 34 is made of a material having a hardness lower than that of the elastic member 16. The first male screw member 20 usually has a higher hardness than the telescopic member 16. Therefore, when the head portion 20a of the first male screw member 20 is brought into direct contact with the telescopic member 16, there is a concern that the load on the telescopic member 16 will increase due to the contact with the high hardness first male screw member 20. In this respect, according to the present embodiment, since the pressing member 34 has a lower hardness than the elastic member 16, the elastic member 16 can be protected from contact with the first male screw member 20, and the burden on the elastic member 16 can be reduced.

図６（ｂ）に示すように、固定子１２と可動子１４の間に伸縮部材１６を張り渡した状態で、固定子１２と可動子１４の間に伸縮部材１６を挟み込む場合を考える。この場合、伸縮部材１６は、固定子１２の第１掛け部１２ａや可動子１４の第２掛け部１２ｂによって、固定子１２の第１凹部１２ｂや可動子１４の第２凹部１４ｂ内に押し込まれる。このとき、伸縮部材１６には固定子１２や可動子１４との接触箇所で摩擦抵抗が生じ、固定子１２や可動子１４の凹部１２ｂ、１４ｂ内に伸縮部材１６をスムーズに押し込み難くなる。また、伸縮部材１６に生じる摩擦により伸縮部材１６に過大な張力が付与される恐れもある。 As shown in FIG. 6B, consider a case where the telescopic member 16 is sandwiched between the stator 12 and the mover 14 in a state where the telescopic member 16 is stretched between the stator 12 and the mover 14. In this case, the telescopic member 16 is pushed into the first recess 12b of the stator 12 and the second recess 14b of the mover 14 by the first hook 12a of the stator 12 and the second hook 12b of the mover 14. .. At this time, frictional resistance is generated in the telescopic member 16 at the contact point with the stator 12 and the mover 14, and it becomes difficult to smoothly push the stretchable member 16 into the recesses 12b and 14b of the stator 12 and the mover 14. In addition, excessive tension may be applied to the telescopic member 16 due to the friction generated in the telescopic member 16.

この対策として、固定子１２の第１掛け部１２ａや可動子１４の第２掛け部１４ａには、伸縮部材１６との接触箇所に潤滑剤が塗布されていてもよい。潤滑剤は、たとえば、フッ素系グリース、モリブデン系グリース等が用いられる。これにより、伸縮部材１６の組み付け作業で良好な作業性を得られるうえ、伸縮部材１６の組み付け作業で伸縮部材１６に付与される張力を軽減できる。なお、同様の目的を果たすうえで、固定子１２の第１掛け部１２ａや可動子１４の第２掛け部１４ａには、潤滑性をあげるための表面処理が施されていてもよい。この表面処理は、たとえば、フッ素系コーティング、モリブデンコーティング等である。 As a countermeasure, a lubricant may be applied to the first hanging portion 12a of the stator 12 and the second hanging portion 14a of the mover 14 at the contact points with the expansion / contraction member 16. As the lubricant, for example, fluorine-based grease, molybdenum-based grease, or the like is used. As a result, good workability can be obtained in the work of assembling the stretchable member 16, and the tension applied to the stretchable member 16 in the work of assembling the stretchable member 16 can be reduced. In order to achieve the same purpose, the first hanging portion 12a of the stator 12 and the second hanging portion 14a of the mover 14 may be subjected to surface treatment for improving lubricity. This surface treatment is, for example, a fluorine-based coating, a molybdenum coating, or the like.

図７は、第１変形例の付勢部材１８を示す側面断面図である。付勢部材１８は、第２雄ねじ部材２２の軸部２２ｂの中心軸線Ｌａ周りの変位を規制するための第２変位規制部１８ｅを有する。第２変位規制部１８ｅは、図７の例では、付勢部材１８の固定部１８ａが接触する電極部材３２や固定子１２に設けられた穴部４０に差し込まれる。第２変位規制部１８ｅは、電極部材３２や固定子１２の穴部４０と接触することで、第２雄ねじ部材２２の中心軸線Ｌａ周りの変位を規制する。 FIG. 7 is a side sectional view showing the urging member 18 of the first modification. The urging member 18 has a second displacement regulating portion 18e for regulating the displacement of the shaft portion 22b of the second male screw member 22 around the central axis La. In the example of FIG. 7, the second displacement regulating portion 18e is inserted into the electrode member 32 or the hole portion 40 provided in the stator 12 with which the fixing portion 18a of the urging member 18 comes into contact. The second displacement regulating portion 18e regulates the displacement of the second male screw member 22 around the central axis La by coming into contact with the electrode member 32 and the hole portion 40 of the stator 12.

図８は、第２変形例の付勢部材１８を示す斜視図である。第２変位規制部１８ｅは、図８の例では、電極部材３２や固定子１２に対して幅方向Ｚ両側に設けられる。第２変位規制部１８ｅは、電極部材３２や固定子１２の幅方向Ｚの両側の側面と接触することで、第２雄ねじ部材２２の中心軸線Ｌａ周りの変位を規制する。 FIG. 8 is a perspective view showing the urging member 18 of the second modification. In the example of FIG. 8, the second displacement regulating unit 18e is provided on both sides of the electrode member 32 and the stator 12 in the width direction Z. The second displacement regulating unit 18e regulates the displacement of the second male screw member 22 around the central axis La by contacting the side surfaces of the electrode member 32 and the stator 12 on both sides in the width direction Z.

以上、本発明の実施形態の例について詳細に説明した。前述した実施形態は、いずれも本発明を実施するにあたっての具体例を示したものにすぎない。実施形態の内容は、本発明の技術的範囲を限定するものではなく、請求の範囲に規定された発明の思想を逸脱しない範囲において、構成要素の変更、追加、削除等の多くの設計変更が可能である。前述の実施形態では、このような設計変更が可能な内容に関して、「実施形態の」「実施形態では」等との表記を付して強調しているが、そのような表記のない内容でも設計変更が許容される。また、図面の断面に付したハッチングは、ハッチングを付した対象の材質を限定するものではない。 The examples of the embodiments of the present invention have been described in detail above. All of the above-described embodiments are merely specific examples for carrying out the present invention. The content of the embodiment does not limit the technical scope of the present invention, and many design changes such as changes, additions, and deletions of components are made without departing from the idea of the invention defined in the claims. It is possible. In the above-described embodiment, the contents that can be changed in such a design are emphasized by adding notations such as "in the embodiment" and "in the embodiment", but the content without such notation is also designed. Changes are allowed. Further, the hatching attached to the cross section of the drawing does not limit the material of the object to which the hatching is attached.

アクチュエータ１０は触感付与装置として用いられる例を説明したが、その用途は特に限定されない。アクチュエータ１０は、たとえば、駆動装置として用いられてもよい。 Although the example in which the actuator 10 is used as a tactile sensation imparting device has been described, its use is not particularly limited. The actuator 10 may be used, for example, as a driving device.

固定子１２や可動子１４の形状や、伸縮部材１６の配置態様は、伸縮部材１６の縮み変形により固定子１２から可動子１４が離れる方向に向けて可動子１４を駆動可能であれば、特に限定されない。固定子１２や可動子１４は、たとえば、直線状に延びる場合の他に曲線状に延びていてもよい。 The shape of the stator 12 and the mover 14 and the arrangement of the telescopic member 16 are particularly limited as long as the mover 14 can be driven in the direction in which the mover 14 is separated from the stator 12 by the contraction deformation of the telescopic member 16. Not limited. The stator 12 and the mover 14 may extend in a curved line in addition to the case where the stator 12 and the mover 14 extend in a straight line, for example.

固定子１２は、複数の第１掛け部１２ａを有し、可動子１４は、固定子１２の第１掛け部１２ａと互い違いに並ぶように配置される複数の第２掛け部１４ａを有する例を説明した。第１掛け部１２ａと第２掛け部１４ａを互い違いに並ぶように配置する場合、第１掛け部１２ａと第２掛け部１４ａの数は単数でもよい。 An example in which the stator 12 has a plurality of first hanging portions 12a, and the mover 14 has a plurality of second hanging portions 14a arranged so as to be arranged alternately with the first hanging portion 12a of the stator 12. explained. When the first hanging portion 12a and the second hanging portion 14a are arranged so as to be arranged alternately, the number of the first hanging portion 12a and the second hanging portion 14a may be singular.

伸縮部材１６及び付勢部材１８のそれぞれが個別の雄ねじ部材２０、２２を用いて固定子１２に締結される例を説明した。この他にも、伸縮部材１６及び付勢部材１８の両方が共通の雄ねじ部材を用いて固定子１２に締結されてもよい。 An example in which the telescopic member 16 and the urging member 18 are fastened to the stator 12 by using individual male screw members 20 and 22 has been described. In addition, both the telescopic member 16 and the urging member 18 may be fastened to the stator 12 using a common male screw member.

雄ねじ部材２０、２２は、雌ねじ部材２４の雌ねじ孔２４ａ、２４ｂにねじ込まれることで、締結対象と固定子１２を締結する例を説明した。この他にも、雄ねじ部材２０、２２は、固定子１２にねじ込まれることで、締結対象と固定子１２を締結してもよい。 An example has been described in which the male screw members 20 and 22 are screwed into the female screw holes 24a and 24b of the female screw member 24 to fasten the fastening target and the stator 12. In addition to this, the male screw members 20 and 22 may be screwed into the stator 12 to fasten the fastening target and the stator 12.

付勢部材１８は、押さえ部１８ｂが板ばねとして機能するばね部材を例に説明したが、その具体例は特に限定されない。付勢部材１８は、ばね部材とする場合、たとえば、一部が線ばねとして機能してもよい。また、付勢部材１８は、ばね部材の他にゴム部材が用いられてもよい。付勢部材１８は、ばね部材、ゴム部材等の弾性部材でもよいということである。 The urging member 18 has been described by taking a spring member in which the pressing portion 18b functions as a leaf spring as an example, but the specific example thereof is not particularly limited. When the urging member 18 is a spring member, for example, a part of the urging member 18 may function as a wire spring. Further, as the urging member 18, a rubber member may be used in addition to the spring member. The urging member 18 may be an elastic member such as a spring member or a rubber member.

付勢部材１８の第１変位規制部１８ｄは付勢部材１８の押さえ部１８ｂが兼ねている例を説明したが、押さえ部１８ｂとは別に設けられてもよい。この場合、付勢部材１８の第１変位規制部１８ｄは、たとえば、可動子１４の幅方向Ｚ両側に一部が配置されてもよい。また、付勢部材１８は第１変位規制部１８ｄがなくともよい。 Although the example in which the first displacement restricting portion 18d of the urging member 18 also serves as the pressing portion 18b of the urging member 18, it may be provided separately from the pressing portion 18b. In this case, a part of the first displacement restricting portion 18d of the urging member 18 may be arranged on both sides of the mover 14 in the width direction Z, for example. Further, the urging member 18 does not have to have the first displacement regulating portion 18d.

付勢部材１８の固定部１８ａ及び押さえ部１８ｂは、固定子１２に対して可動方向Ｘの一方側に全体が配置される例を説明したが、これに限定されない。たとえば、付勢部材１８は、固定子１２に対して可動方向Ｘの他方側に固定部１８ａが配置され、固定子１２に対して可動方向Ｘの一方側に押さえ部１８ｂが配置されてもよい。また、付勢部材１８の固定部１８ａ及び押さえ部１８ｂは、固定子１２に対して可動方向Ｘの一方側に全体を配置するうえで、その一部が固定子１２と可動子１４の間に配置されてもよい。 The example in which the fixing portion 18a and the pressing portion 18b of the urging member 18 are entirely arranged on one side of the movable direction X with respect to the stator 12 has been described, but the present invention is not limited to this. For example, in the urging member 18, the fixing portion 18a may be arranged on the other side of the movable direction X with respect to the stator 12, and the pressing portion 18b may be arranged on one side of the movable direction X with respect to the stator 12. .. Further, the fixing portion 18a and the pressing portion 18b of the urging member 18 are partially arranged between the stator 12 and the mover 14 when the whole is arranged on one side of the movable direction X with respect to the stator 12. It may be arranged.

付勢部材１８は、可動方向Ｘから見て、可動子１４の幅方向Ｚ両側の側面１４ｄからはみ出る形状でもよい。固定子１２も同様に、可動方向Ｘから見て、可動子１４の幅方向Ｚ両側の側面１４ｄからはみ出る形状でもよい。 The urging member 18 may have a shape that protrudes from the side surfaces 14d on both sides of the movable element 14 in the width direction Z when viewed from the movable direction X. Similarly, the stator 12 may have a shape that protrudes from the side surfaces 14d on both sides of the width direction Z of the mover 14 when viewed from the movable direction X.

１０…アクチュエータ、１２…固定子、１２ｃ…対向箇所、１２ｄ…はみ出し部、１４…可動子、１４ｄ…側面、１６…伸縮部材、１８…付勢部材、１８ａ…固定部、１８ｂ…押さえ部、１８ｄ…第１変位規制部、２０…第１雄ねじ部材、２２…第２雄ねじ部材、２４…雌ねじ部材、２４ａ…雌ねじ孔。 10 ... Actuator, 12 ... Stator, 12c ... Opposing part, 12d ... Overhanging part, 14 ... Movable element, 14d ... Side surface, 16 ... Telescopic member, 18 ... Biasing member, 18a ... Fixed part, 18b ... Holding part, 18d ... 1st displacement regulating unit, 20 ... 1st male screw member, 22 ... 2nd male screw member, 24 ... female screw member, 24a ... female screw hole.

Claims (6)

固定子と、
前記固定子と対向し、前記固定子と対向する方向を可動方向として移動可能な可動子と、
温度変化により伸縮可能な形状記憶合金を素材として構成され、前記固定子から前記可動子が離れる方向となる前記可動方向の一方側に向けて縮み変形により前記可動子を駆動可能な伸縮部材と、
前記可動方向の他方側に向けて前記可動子を付勢する付勢部材と、を備え、
前記付勢部材は、前記可動子から離間した箇所で前記固定子に固定される固定部と、前記可動方向の他方側に向けて前記可動子を押さえる押さえ部とを有し、
前記固定部及び前記押さえ部は、前記固定子に対して前記可動方向の一方側に全体が配置されるアクチュエータ。 Stator and
A mover that faces the stator and is movable with the direction facing the stator as the movable direction.
A stretchable member made of a shape memory alloy that can be expanded and contracted by a temperature change, and that can drive the mover by shrinking and deforming toward one side of the movable direction, which is the direction in which the mover is separated from the stator.
An urging member that urges the mover toward the other side in the movable direction.
Wherein the biasing member is, possess a fixed portion fixed to the stator at a location spaced from said movable element, and a pressing portion for pressing the movable member toward the other side of the movable direction,
Before SL fixing portion and the pressing portion, the entire one side of the movable direction with respect to the stator are arranged luer actuator. 固定子と、
前記固定子と対向し、前記固定子と対向する方向を可動方向として移動可能な可動子と、
温度変化により伸縮可能な形状記憶合金を素材として構成され、前記固定子から前記可動子が離れる方向となる前記可動方向の一方側に向けて縮み変形により前記可動子を駆動可能な伸縮部材と、
前記可動方向の他方側に向けて前記可動子を付勢する付勢部材と、を備え、
前記付勢部材は、前記可動子から離間した箇所で前記固定子に固定される固定部と、前記可動方向の他方側に向けて前記可動子を押さえる押さえ部とを有し、
前記可動子は、前記可動方向と交差する延び方向に延びており、
前記付勢部材は、前記可動子の一部と前記延び方向での位置が重なるように配置される変位規制部を有し、
前記可動方向及び前記延び方向に直交する方向を幅方向としたとき、前記変位規制部は、前記変位規制部と前記延び方向での位置が重なる前記可動子の一部の幅方向両側への変位を規制可能であるアクチュエータ。 Stator and
A mover that faces the stator and is movable with the direction facing the stator as the movable direction.
A stretchable member made of a shape memory alloy that can be expanded and contracted by a temperature change, and that can drive the mover by shrinking and deforming toward one side of the movable direction, which is the direction in which the mover is separated from the stator.
An urging member that urges the mover toward the other side in the movable direction.
The urging member has a fixing portion fixed to the stator at a position separated from the mover, and a holding portion for pressing the mover toward the other side in the movable direction .
Before SL armature extends in the extension direction intersecting the moving direction,
The urging member has a displacement regulating portion arranged so that a part of the mover and a position in the extending direction overlap with each other.
When the movable direction and the direction orthogonal to the extending direction are defined as the width direction, the displacement regulating portion is displaced in both sides in the width direction of a part of the mover whose position overlaps with the displacement regulating portion in the extending direction. regulation possible der Rua actuator a. 固定子と、
前記固定子と対向し、前記固定子と対向する方向を可動方向として移動可能な可動子と、
温度変化により伸縮可能な形状記憶合金を素材として構成され、前記固定子から前記可動子が離れる方向となる前記可動方向の一方側に向けて縮み変形により前記可動子を駆動可能な伸縮部材と、
前記可動方向の他方側に向けて前記可動子を付勢する付勢部材と、を備え、
前記付勢部材は、前記可動子から離間した箇所で前記固定子に固定される固定部と、前記可動方向の他方側に向けて前記可動子を押さえる押さえ部とを有し、
前記伸縮部材及び前記付勢部材の少なくとも一方の締結対象と前記固定子を締結する雄ねじ部材と、
前記固定子を挟んで前記可動子とは前記可動方向の反対側に配置され、雌ねじ孔が形成される雌ねじ部材と、を備え、
前記雄ねじ部材は、前記雌ねじ孔にねじ込まれることで前記締結対象と前記固定子を締結するアクチュエータ。 Stator and
A mover that faces the stator and is movable with the direction facing the stator as the movable direction.
A stretchable member made of a shape memory alloy that can be expanded and contracted by a temperature change, and that can drive the mover by shrinking and deforming toward one side of the movable direction, which is the direction in which the mover is separated from the stator.
An urging member that urges the mover toward the other side in the movable direction.
Wherein the biasing member is, possess a fixed portion fixed to the stator at a location spaced from said movable element, and a pressing portion for pressing the movable member toward the other side of the movable direction,
A male screw member for fastening at least one fastening object and the stator of the previous SL elastic member and the biasing member,
A female screw member, which is arranged on the opposite side of the stator with the stator in the movable direction and has a female screw hole formed therein, is provided.
The male screw member, luer actuator conclude the fastening object and the stator by being screwed into the female screw hole. 固定子と、
前記固定子と対向し、前記固定子と対向する方向を可動方向として移動可能な可動子と、
温度変化により伸縮可能な形状記憶合金を素材として構成され、前記固定子から前記可動子が離れる方向となる前記可動方向の一方側に向けて縮み変形により前記可動子を駆動可能な伸縮部材と、
前記可動方向の他方側に向けて前記可動子を付勢する付勢部材と、を備え、
前記付勢部材は、前記可動子から離間した箇所で前記固定子に固定される固定部と、前記可動方向の他方側に向けて前記可動子を押さえる押さえ部とを有し、
前記伸縮部材と前記固定子を締結する第１雄ねじ部材と、
前記付勢部材と前記固定子を締結する第２雄ねじ部材とを備えるアクチュエータ。 Stator and
A mover that faces the stator and is movable with the direction facing the stator as the movable direction.
A stretchable member made of a shape memory alloy that can be expanded and contracted by a temperature change, and that can drive the mover by shrinking and deforming toward one side of the movable direction, which is the direction in which the mover is separated from the stator.
An urging member that urges the mover toward the other side in the movable direction.
Wherein the biasing member is, possess a fixed portion fixed to the stator at a location spaced from said movable element, and a pressing portion for pressing the movable member toward the other side of the movable direction,
A first male screw member for fastening the stator to the previous SL telescopic member,
Rua actuator and a second male screw member for fastening the stator and the biasing member. 前記固定子は、前記可動方向から見て、前記可動子との対向箇所よりはみ出るはみ出し部を有し、
前記固定部は、前記はみ出し部に固定される請求項１から４のいずれかに記載のアクチュエータ。 The stator has a protruding portion that protrudes from a portion facing the mover when viewed from the movable direction.
The actuator according to any one of claims 1 to 4 , wherein the fixing portion is fixed to the protruding portion. 前記可動子は、前記可動方向と交差する延び方向に延びており、
前記可動方向及び前記延び方向に直交する方向を幅方向としたとき、前記付勢部材は、前記可動方向から見て、前記可動子の幅方向両側の側面に対して幅方向内側に収まる形状である請求項１から５のいずれかに記載のアクチュエータ。 The mover extends in an extension direction that intersects the move direction.
When the direction orthogonal to the movable direction and the extending direction is the width direction, the urging member has a shape that fits inside the width direction with respect to both side surfaces of the actuator in the width direction when viewed from the movable direction. The actuator according to any one of claims 1 to 5.
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Family Cites Families (13)

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US7690621B2 (en) * 2003-04-15 2010-04-06 Board Of Trustees Operating Michigan State University Prestrained thin-film shape memory actuator using polymeric substrates
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JP2008027843A (en) * 2006-07-25 2008-02-07 Omron Corp Switch device
JP5656030B2 (en) * 2012-08-17 2015-01-21 Smk株式会社 Driving device and manufacturing method thereof
JP5967366B2 (en) * 2012-09-11 2016-08-10 Smk株式会社 Flat shape memory cable body and driving device using the same
CN102889188B (en) * 2012-09-29 2015-11-25 黑龙江科技大学 The bidirectional linear actuator of Shape-based interpolation memory material actuator
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JP5765588B2 (en) * 2013-01-18 2015-08-19 Smk株式会社 Force feedback type touch panel device
JP5787120B1 (en) * 2014-06-09 2015-09-30 Smk株式会社 Drive device
JP6213738B2 (en) * 2014-10-10 2017-10-18 Smk株式会社 Drive device and mounting structure thereof
JP6741339B2 (en) * 2016-04-12 2020-08-19 東洋電装株式会社 Impact feedback operating device
JP6156666B2 (en) * 2016-05-19 2017-07-05 Smk株式会社 Drive device

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