JP4631846B2 - Vibration type linear actuator - Google Patents

Vibration type linear actuator Download PDF

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JP4631846B2
JP4631846B2 JP2006340405A JP2006340405A JP4631846B2 JP 4631846 B2 JP4631846 B2 JP 4631846B2 JP 2006340405 A JP2006340405 A JP 2006340405A JP 2006340405 A JP2006340405 A JP 2006340405A JP 4631846 B2 JP4631846 B2 JP 4631846B2
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metal member
view
mover
linear actuator
type linear
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JP2007083073A (en
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昇 小林
宏明 清水
英一 薮内
雅嗣 森口
良 本橋
隆児 大谷
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Panasonic Corp
Panasonic Electric Works Co Ltd
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Panasonic Corp
Matsushita Electric Works Ltd
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Description

本発明は、往復式電気かみそり等の駆動源として利用することができる振動型リニアアクチュエータに関するものである。   The present invention relates to a vibration type linear actuator that can be used as a drive source for a reciprocating electric shaver or the like.

振動型リニアアクチュエータを駆動源としている往復式電気かみそりが特開平７−３１３７４６号公報に示されている。これは固定子とこの固定子に対して往復動する可動子とを備えた振動型リニアアクチュエータ（往復動型電動機）において、複数の刃ヘッドの各可動刃に対応した複数の可動子を有して、これらの複数の可動子を１つの固定子で駆動するようにしたもので、固定子に対して複数の可動子を連結板で往復動自在に支持するとともに、複数の可動子間にはコイルばねからなる連結体を介在させている。この連結体は、複数の可動子を逆位相で振動させる時、一つの可動子のみに大きな負荷がかかって振幅が急激に減少しようとした時、他の可動子によってこの減少を抑えるものであり、片方の可動子のみの振幅減少を防ぎ、バランスの取れた均一な振幅量を得るように機能している。   Japanese Unexamined Patent Publication No. 7-313746 discloses a reciprocating electric shaver using a vibration type linear actuator as a drive source. This is a vibration type linear actuator (reciprocating motor) having a stator and a movable element that reciprocates relative to the stator, and has a plurality of movable elements corresponding to each movable blade of a plurality of blade heads. The plurality of movers are driven by a single stator, and the plurality of movers are supported by the connecting plate so as to be reciprocally movable with respect to the stator, and between the plurality of movers. A coupling body composed of a coil spring is interposed. In this connection body, when a plurality of movers are vibrated in opposite phases, when a large load is applied to only one mover and the amplitude is about to decrease rapidly, the other movers suppress this decrease. It functions to prevent a decrease in amplitude of only one of the movers and to obtain a balanced and uniform amplitude.

ここにおいて、可動子の支持用の上記連結板が固定される固定部は、金属部材に成形品を被覆したものとして形成していたが、この成形品で被覆した分だけ厚みあるいは幅が増大し、アクチュエータの小型化を難しくしていた。   Here, the fixed portion to which the connecting plate for supporting the movable element is fixed is formed by coating a metal member with a molded product. However, the thickness or width increases by the amount covered with the molded product. Therefore, it was difficult to reduce the size of the actuator.

本発明は上記の従来の問題点に鑑みて発明したものであって、小型化について有利な振動型リニアアクチュエータを提供することを課題とするものである。   The present invention was invented in view of the above-described conventional problems, and an object of the present invention is to provide a vibration type linear actuator that is advantageous in terms of downsizing.

上記課題を解決するために本発明は、複数の可動子を固定子で往復駆動する振動型リニアアクチュエータにおいて、固定子が固定されたシャーシの固定部と可動子とに連結された連結板で可動子が往復動自在に支持されているとともに、上記固定部は金属部材と該金属部材に一体成形で被覆された成形品とからなり、該固定部における連結板の連結用の上記成形品は、金属部材外面に設けた肉厚が薄くなった部分もしくは幅が狭くなった部分に設けられていることに特徴を有している。 In order to solve the above-described problems, the present invention provides a vibration type linear actuator that reciprocally drives a plurality of movers with a stator. with children is reciprocatingly supported, the fixing unit is made up of a molded article coated with integrally molded to the metal member and the metal member, the molded article for connection of the connecting plate in the fixing part, It is characterized in that it is provided in a portion where the thickness provided on the outer surface of the metal member is reduced or a portion where the width is reduced.

上記固定部における連結板の連結用の成形品は、金属部材に設けた貫通孔部分に設けられているものであってもよい。   The molded product for connecting the connecting plate in the fixing portion may be provided in a through hole portion provided in the metal member.

シャーシの固定部における成形品が厚みあるいは幅を増大させてしまうことがないものとすることができる。   The molded product in the fixed portion of the chassis can be prevented from increasing in thickness or width.

本発明は、固定部における連結板の連結用の成形品を、金属部材外面に設けた肉厚が薄くなった部分もしくは幅が狭くなった部分、あるいは金属部材に設けた貫通孔部分に設けていることから、成形品が固定部の厚みあるいは幅を大きくしてしまうことがなく、小型化の点で有利なものである。   According to the present invention, the molded product for connecting the connecting plate in the fixing portion is provided in a portion where the thickness is reduced or a portion where the width is reduced provided on the outer surface of the metal member, or a through-hole portion provided in the metal member. Therefore, the molded product does not increase the thickness or width of the fixed portion, which is advantageous in terms of miniaturization.

以下本発明を実施の形態の一例に基づいて詳述すると、図１乃至図３は本発明に係る振動型リニアアクチュエータの一例を示している。往復式電気かみそりの駆動源用として形成されている図示例の振動型リニアアクチュエータは、固定子１と一対の可動子２，２、シャーシ３，２つの可動子２，２同士を連結している連結体１２で構成されている。   Hereinafter, the present invention will be described in detail based on an example of an embodiment. FIG. 1 to FIG. 3 show an example of a vibration type linear actuator according to the present invention. The vibration type linear actuator of the illustrated example formed as a driving source for a reciprocating electric shaver connects a stator 1 and a pair of movers 2 and 2, a chassis 3 and two movers 2 and 2. It is composed of a connecting body 12.

上記可動子２はバックヨーク５が一体成形されたもので、磁性材料からなるバックヨーク５には永久磁石４が接着してある。また、電気かみそりにおける可動刃が連結される駆動子２２を備えている。なお、この駆動子２２は図４〜及び図５に示すように、可動子２の上面から側方に突出するとともに先端部が可動子２の振動方向に延長されているＬ型のアーム２１の先端部上面に設けており、一対の同一形状の可動子２，２はその駆動子２２が他方の可動子２上に位置するように組み立てられるとともに、各可動子２，２の駆動子２２，２２は、共に可動子２の振動方向における振動ストロークの中央位置に並んで位置する。図５中の２８は可動子２側面とアーム２１の底面とをつないでいる補強部である。   The mover 2 has a back yoke 5 integrally formed, and a permanent magnet 4 is bonded to the back yoke 5 made of a magnetic material. Moreover, the drive element 22 with which the movable blade in an electric shaver is connected is provided. As shown in FIGS. 4 and 5, the driver 22 protrudes laterally from the upper surface of the mover 2 and has an L-shaped arm 21 whose tip is extended in the vibration direction of the mover 2. The pair of movable elements 2, 2 having the same shape is provided on the top surface of the tip, and is assembled so that the driver 22 is positioned on the other movable element 2. Both 22 are located side by side at the center position of the vibration stroke in the vibration direction of the mover 2. Reference numeral 28 in FIG. 5 denotes a reinforcing portion that connects the side surface of the mover 2 and the bottom surface of the arm 21.

固定子１は磁性材料の焼結体や磁性材料の鉄板を積層したものにボビン１６を介して巻線８を施して電磁石としたもので、ねじ具等によりシャーシ３に固定されている。   The stator 1 is an electromagnet obtained by laminating a sintered body of magnetic material or an iron plate of magnetic material with a bobbin 16 through a bobbin 16, and is fixed to the chassis 3 with a screw or the like.

そして上記可動子２は、シャーシ３に板ばねからなる連結板９で吊り下げられてその永久磁石４と固定子１とが面対向しているとともに両者の間にギャップ８が確保されている。なお、上記連結板９はその上端部がシャーシ３に固定された固定プレート１０に、下端部が可動子２に固定されている。固定プレート１０は、該振動型リニアアクチュエータを電気かみそり本体などに組み付ける場合の固定部としての役割も持つ。   The mover 2 is suspended from the chassis 3 by a connecting plate 9 made of a leaf spring, and the permanent magnet 4 and the stator 1 face each other and a gap 8 is secured between the two. The connecting plate 9 has an upper end fixed to a fixed plate 10 fixed to the chassis 3 and a lower end fixed to the mover 2. The fixing plate 10 also has a role as a fixing portion when the vibration type linear actuator is assembled to an electric razor main body or the like.

ばね性を有している連結板９，９で吊り下げられているとともに逆向きに且つ平行並列に配設された２つの可動子２，２は、固定子１である電磁石の電流方向を交番にした時、電磁石である固定子１との間に吸引・反発力が作用する永久磁石４を備えているために、連結板９を撓ませつつ往復動を行う。なお、固定子１を構成する電磁石の巻線８が１本である場合は、往復運動の右方向運動と左方向運動で巻線８に与える電流の向きを反転させる。つまり移動方向に推進力が働く方向に電流を流すことで可動子２を往復動させる。   The two movers 2 and 2 that are suspended by the connecting plates 9 and 9 having spring properties and arranged in parallel and in opposite directions alternate the current direction of the electromagnet that is the stator 1. In this case, since the permanent magnet 4 acting with the attractive / repulsive force is provided between the stator 1 which is an electromagnet, the reciprocating motion is performed while the connecting plate 9 is bent. When the number of the electromagnet windings 8 constituting the stator 1 is one, the direction of the current applied to the windings 8 is reversed by the reciprocating rightward movement and the leftward movement. That is, the movable element 2 is reciprocated by flowing a current in a direction in which a driving force acts in the moving direction.

また、ここでは２つの可動子２の永久磁石４の極性を逆にしていることから、複数の可動子２，２は１８０°ずれた振動位相を有するものとなっており、しかも２つの可動子２，２は同じ形状である上に、各可動子２における駆動子２２は他方の可動子２の直上に相互に位置しており、また駆動子２２は図４に示すように可動子２の振動方向ｘにおいて中央位置にあって、振動方向ｘと直交する方向ｙに駆動子２２，２２が並ぶことから、可動子２，２に往復振動を行わせた時、余分な振動が発生せず、振動バランスがきわめて良好な状態に保たれている。   Here, since the polarities of the permanent magnets 4 of the two movers 2 are reversed, the plural movers 2 and 2 have vibration phases shifted by 180 °, and the two movers 2 and 2 have the same shape, and the drive element 22 in each mover 2 is positioned directly above the other mover 2, and the drive element 22 is formed of the mover 2 as shown in FIG. Since the drive elements 22 and 22 are arranged in a center position in the vibration direction x and perpendicular to the vibration direction x, no extra vibration is generated when the movable elements 2 and 2 are caused to reciprocate. The vibration balance is kept in a very good state.

さらに、上記両可動子２，２間は、可動子２の往復動方向にばね性を有する連結体１２で連結されているのであるが、この連結体１２は可動子の振動方向と直交する平面上に位置するＵ字形の板ばねで形成されているとともに、可動子２の振動方向の一方の端部に２枚の連結体１２，１２を、他方の端部に２枚の連結体１２，１２を夫々配置しており、総計４枚の連結体１２で２つの可動子２，２間を連結している。これら連結体１２は、一方の可動子２の負荷が大きく振幅が急激に減少しようとした時、他方の可動子２の動きでこの減少を抑えるものであり、このために片方のみの振幅減少を防ぎ、常にバランスの取れた均一な振幅量を発生させる。また、この連結体１２は、各可動子２の固有振動数を一定にするための固有振動数設定ばねともなるようにしてある。   Further, the two movable elements 2 and 2 are connected by a connecting body 12 having a spring property in the reciprocating direction of the moving element 2, and this connecting body 12 is a plane orthogonal to the vibration direction of the movable element. It is formed of a U-shaped leaf spring located on the top, and two connecting bodies 12 and 12 are provided at one end in the vibration direction of the mover 2, and two connecting bodies 12 and 12 are provided at the other end. 12 are arranged, and the two movable elements 2 and 2 are connected by a total of four connecting bodies 12. These coupling bodies 12 suppress the decrease by the movement of the other movable element 2 when the load of one movable element 2 is large and the amplitude is about to decrease rapidly. For this reason, the decrease in the amplitude of only one of the movable elements 2 is suppressed. Prevent and always generate a balanced and uniform amount of amplitude. In addition, the connecting body 12 is configured to be a natural frequency setting spring for making the natural frequency of each movable element 2 constant.

なお、図示形状の連結体１２は一端の固定用係合部３０を一方の可動子２の端部から突出する連結用突起部２０に嵌合固定し、他端の固定用係合部３０を他方の可動子２の端部から突出する連結用突起部２０に嵌合固定したもので、その全長がすべて有効なばね部として機能するために、所要のばね長を小さな板ばねで確保することができる。   In addition, the connecting body 12 having the illustrated shape is fitted and fixed to the connecting protrusion 20 projecting from the end of one of the movable elements 2 and the fixing engaging portion 30 at the other end is fixed. The required length is secured by a small leaf spring in order to function as an effective spring part, which is fitted and fixed to the connecting projection part 20 protruding from the end part of the other mover 2. Can do.

図６もしくは図７は可動子２が備えるバックヨーク５の上面側に凹部もしくは凸部を設けて可動子２との間に凹凸係合部２７が生じるようにしたものであり、このような凹凸係合部２８の存在は、バックヨーク５と可動子２との結合強度を高めて、バックヨーク５が剥がれたりずれたりすることを防ぐ。図８に示すように、バックヨーク５の上面に段差を形成しておくことで可動子２との間に凹凸係合部２７が生じるようにしておいてもよい。いずれにしても、このような凹凸係合部２７は、駆動子２２の近傍に設けておくことが望ましい。駆動子２２と可動子２との間の連結部分の強度を高めることにもなるからである。また、バックヨーク５の内部に形成される磁気回路のことを考えれば、バックヨーク５の断面積を小さくしてしまうことがないもの、つまり図７に示す形態の凹凸係合部２７が最も好ましいものとなる。   FIG. 6 or FIG. 7 shows a case where a concave or convex portion is provided on the upper surface side of the back yoke 5 provided in the movable element 2 so that a concave and convex engaging portion 27 is formed between the movable element 2 and such concave and convex parts. The presence of the engaging portion 28 increases the coupling strength between the back yoke 5 and the mover 2 and prevents the back yoke 5 from peeling off or shifting. As shown in FIG. 8, an uneven engagement portion 27 may be formed between the back yoke 5 and the movable element 2 by forming a step on the upper surface of the back yoke 5. In any case, it is desirable to provide such an uneven engagement portion 27 in the vicinity of the driver element 22. This is because the strength of the connecting portion between the driver element 22 and the movable element 2 is also increased. In view of the magnetic circuit formed inside the back yoke 5, the concave / convex engaging portion 27 having the configuration shown in FIG. 7 that does not reduce the cross-sectional area of the back yoke 5 is most preferable. It will be a thing.

図９は可動子２における駆動子２２をオフセット配置するためのアーム２１の他の形状例を示すものである。このような斜辺としてのアーム２１であっても、振動バランスを良好に保つことができる。   FIG. 9 shows another example of the shape of the arm 21 for arranging the driver element 22 in the movable element 2 in an offset manner. Even with the arm 21 as such a hypotenuse, a good vibration balance can be maintained.

図１０に示すように、駆動子２２を可動子２の振動方向の中央からずれたところに設けたものであってもよい。この場合においても、可動子２，２同士の重心を合わせることができる。   As shown in FIG. 10, the drive element 22 may be provided at a position shifted from the center of the vibration direction of the mover 2. Even in this case, the centers of gravity of the movers 2 and 2 can be matched.

図１１及び図１２は上記固定子１の詳細形状を示しており、巻線７の端末の端子部７０は、ボビン１６に設けた引き出しガイド部９０のガイド溝９１を通ってボビン１６から引き出されている。また、上記引き出しガイド部９０の底面部は、図１２(b)に示すように曲面９２を持つ面とされており、上記端子部７０を屈曲させた横方向に引き出す時、曲面９２に沿って端子部７０が曲げられるために、端子部７０にクラック等の破損が生じることがない。上記引き出しガイド部９０や曲面９２は、図１３に示すようにボビン１６から突出する突起部として設けてもよく、この場合の曲面９２は突起部である引き出しガイド部９０の下面全面に設けるとよい。引き出しガイド部９０及び曲面９２を備えたボビン１６の成形が容易となる。   11 and 12 show the detailed shape of the stator 1, and the terminal portion 70 of the end of the winding 7 is pulled out from the bobbin 16 through the guide groove 91 of the pull-out guide portion 90 provided in the bobbin 16. ing. Further, the bottom surface portion of the drawer guide portion 90 is a surface having a curved surface 92 as shown in FIG. 12B. When the terminal portion 70 is pulled out in the lateral direction, the curved surface 92 is taken along. Since the terminal portion 70 is bent, the terminal portion 70 is not damaged such as a crack. The drawer guide portion 90 and the curved surface 92 may be provided as a protruding portion protruding from the bobbin 16 as shown in FIG. 13, and the curved surface 92 in this case may be provided on the entire lower surface of the drawer guide portion 90 which is a protruding portion. . The bobbin 16 having the drawer guide portion 90 and the curved surface 92 can be easily formed.

図１４にシャーシ３における連結板９の固定用の固定部を構成している前記固定プレート１０を示す。この固定プレート１０は、両端が金属製のシャーシ３に溶接固定される金属部材１３と、金属部材１３に一体成形で被覆されて前記連結板９の一端の固定に供される成形品１４とからなるが、金属部材１３が図１４(a)に示す平板状のものであると、成形品１４を成形した時、固定プレート１０の厚みや幅は成形品１４の厚み分だけ金属部材１３単体より大きくなってしまう。   FIG. 14 shows the fixing plate 10 constituting a fixing portion for fixing the connecting plate 9 in the chassis 3. The fixing plate 10 includes a metal member 13 which is welded and fixed to the metal chassis 3 at both ends, and a molded product 14 which is covered with the metal member 13 by integral molding and used for fixing one end of the connecting plate 9. However, if the metal member 13 has a flat plate shape as shown in FIG. 14A, when the molded product 14 is molded, the thickness and width of the fixed plate 10 are equal to the thickness of the molded product 14 than the metal member 13 alone. It gets bigger.

しかし、図１５に示すように金属部材１３の両端部下面側、あるいは図１６に示すように金属部材１３の両端部上面側を切り欠く段差６０で厚みを薄くした部分を設け、この部分に成形品１４を成形すれば、成形品１４の表面を金属部材１３の表面と同一に保つことができるものであり、このために固定プレート１０の厚みを薄くすることができる。もちろん、図１７に示すように、金属部材１３の両端部の上面と下面の双方を切り欠く段差６０，６０を設けておくならば、成形品１４の部分の厚みを金属部材１３の厚みと同じにすることができるために、薄型化の点でより有利となる。   However, as shown in FIG. 15, there is provided a portion with a reduced thickness at a step 60 that cuts out the lower surface of both ends of the metal member 13 or the upper surface of both ends of the metal member 13 as shown in FIG. If the product 14 is molded, the surface of the molded product 14 can be kept the same as the surface of the metal member 13, and for this purpose, the thickness of the fixed plate 10 can be reduced. Of course, as shown in FIG. 17, if the steps 60, 60 that cut out both the upper surface and the lower surface of both ends of the metal member 13 are provided, the thickness of the molded product 14 is the same as the thickness of the metal member 13. Therefore, it is more advantageous in terms of thinning.

図１８に示すように、金属部材１３の側面に切り欠き６１を設けても良い、この場合、切り欠き６１部分に成形品１４を成形することで、幅方向（可動子２の振動方向）に成形品１４が突出することがないものを得ることができて、振動方向の寸法の小型化を図ることができるものとなる。   As shown in FIG. 18, a notch 61 may be provided on the side surface of the metal member 13. In this case, by forming the molded product 14 in the notch 61 portion, in the width direction (vibration direction of the mover 2). The molded product 14 can be obtained without protruding, and the size in the vibration direction can be reduced.

上記金属部材１３の側面に切り欠き６１を設けることに代えて、図１９に示すように、金属部材１３に貫通孔６２を設けておき、この貫通孔６２の部分に成形品１４の成形を行う場合も、幅方向（可動子２の振動方向）に成形品１４が突出することがないものを得ることができる。   Instead of providing the notch 61 on the side surface of the metal member 13, as shown in FIG. 19, a through hole 62 is provided in the metal member 13, and the molded product 14 is formed in the portion of the through hole 62. Also in this case, it is possible to obtain a product in which the molded product 14 does not protrude in the width direction (vibration direction of the mover 2).

更には、図２０に示すように、金属部材１３の上下面に段差６０を、側面に切り欠き６１を設けたり、図２１に示すように金属部材１３の上下面に段差６０と貫通孔６２を設けたり、あるいは図２２に示すように金属部材１３の上下面に段差６０を、側面に切り欠き６１を設け、更に貫通孔６２を設けたりする場合には、成形品１４が金属部材１３から厚み方向にも幅方向にも突出することがないものを得ることができて、小型化の点で更に有利となる。   Furthermore, as shown in FIG. 20, a step 60 is provided on the upper and lower surfaces of the metal member 13, and a notch 61 is provided on the side surface, or a step 60 and a through hole 62 are provided on the upper and lower surfaces of the metal member 13 as shown in FIG. When the step is provided on the upper and lower surfaces of the metal member 13 as shown in FIG. 22, the notch 61 is provided on the side surface, and the through hole 62 is further provided, the molded product 14 has a thickness from the metal member 13. A product that does not protrude in either the direction or the width direction can be obtained, which is further advantageous in terms of miniaturization.

図２３〜図２５は上記の振動型リニアアクチュエータを駆動源としている往復式の電気かみそりを示している。この電気かみそりは、電源部を内蔵しているとともに使用時のグリップ部となる本体部４４と、本体部４４上にあって本体部４３に対して上下に可動で且つ左右に揺動自在となっている可動ケース４３と、可動ケース４３を覆う外刃枠４２とを備え、振動型リニアアクチュエータは可動ケース４３内に収容して可動子２における駆動子２２に可動刃（図示せず）を連結し、リニアアクチュエータによって往復駆動される該可動刃を外刃枠４２に保持された外刃４７，４７，４８の内面に摺接させたものである。   23 to 25 show a reciprocating electric shaver using the above-described vibration type linear actuator as a drive source. This electric razor has a built-in power supply unit and a main body part 44 that is a grip part in use, and is movable on the main body part 44 up and down and swingable left and right. A movable case 43 and an outer blade frame 42 covering the movable case 43. The vibration type linear actuator is housed in the movable case 43 and a movable blade (not shown) is connected to the driver 22 in the movable element 2. The movable blade that is reciprocally driven by the linear actuator is brought into sliding contact with the inner surfaces of the outer blades 47, 47, 48 held by the outer blade frame 42.

本発明の実施の形態の一例の斜視図である。It is a perspective view of an example of an embodiment of the invention. 同上の側面図である。It is a side view same as the above. 同上の分解斜視図である。It is an exploded perspective view same as the above. 同上の可動子の平面図である。It is a top view of the needle | mover same as the above. 同上の可動子の正面図である。It is a front view of a needle | mover same as the above. 可動子の他例の側面図である。It is a side view of the other example of a needle | mover. 可動子の更に他例の側面図である。It is a side view of the other example of a needle | mover. 可動子の別の例の側面図である。It is a side view of another example of a needle | mover. 可動子の更に別の例の平面図である。It is a top view of another example of a mover. 可動子の異なる例の平面図である。It is a top view of the example from which a needle | mover differs. 固定子の斜視図である。It is a perspective view of a stator. (a)は固定子の正面図、(b)は固定子のＡ−Ａ線断面図、(c)は固定の底面図である。(a) is a front view of the stator, (b) is a cross-sectional view taken along the line AA of the stator, and (c) is a bottom view of the stator. 固定子の他例の斜視図である。It is a perspective view of other examples of a stator. (a)は固定プレートにおける金属部材の斜視図、(b)は固定部レートの平面図、(c)は固定プレートの斜視図、(d)は固定プレートの側面図である。(a) is a perspective view of a metal member in the fixed plate, (b) is a plan view of a fixed portion rate, (c) is a perspective view of the fixed plate, and (d) is a side view of the fixed plate. 固定プレートの他例を示すもので、(a)は固定プレートにおける金属部材の斜視図、(b)は金属部材の側面図、(c)は固定プレートの斜視図、(d)は固定プレートの側面図である。FIG. 4 shows another example of a fixing plate, in which (a) is a perspective view of a metal member in the fixing plate, (b) is a side view of the metal member, (c) is a perspective view of the fixing plate, and (d) is a perspective view of the fixing plate. It is a side view. 固定プレートの更に他例を示すもので、(a)は固定プレートにおける金属部材の斜視図、(b)は金属部材の側面図、(c)は固定プレートの斜視図、(d)は固定プレートの側面図である。FIG. 4 shows still another example of a fixing plate, (a) is a perspective view of a metal member in the fixing plate, (b) is a side view of the metal member, (c) is a perspective view of the fixing plate, and (d) is a fixing plate. FIG. 固定プレートの別の例を示すもので、(a)は固定プレートにおける金属部材の斜視図、(b)は金属部材の側面図、(c)は固定プレートの斜視図、(d)は固定プレートの側面図である。Fig. 4 shows another example of a fixing plate, (a) is a perspective view of a metal member in the fixing plate, (b) is a side view of the metal member, (c) is a perspective view of the fixing plate, and (d) is a fixing plate. FIG. 固定プレートの更に別の例を示すもので、(a)は固定プレートにおける金属部材の斜視図、(b)は金属部材の平面図、(c)は固定プレートの斜視図、(d)は固定プレートの平面図である。Fig. 3 shows still another example of a fixing plate, (a) is a perspective view of a metal member in the fixing plate, (b) is a plan view of the metal member, (c) is a perspective view of the fixing plate, and (d) is a fixing plate. It is a top view of a plate. 固定プレートの異なる例を示すもので、(a)は固定プレートにおける金属部材の斜視図、(b)は金属部材の平面図、(c)は固定プレートの斜視図、(d)は固定プレートの平面図である。Fig. 4 shows different examples of the fixing plate, (a) is a perspective view of a metal member in the fixing plate, (b) is a plan view of the metal member, (c) is a perspective view of the fixing plate, and (d) is a perspective view of the fixing plate. It is a top view. 固定プレートの他例を示すもので、(a)は固定プレートにおける金属部材の斜視図、(b)は金属部材の平面図、(c)は金属部材の平面図、(d)は固定プレートの斜視図、(e)は固定プレートの平面図、(f)は固定プレートの側面図である。FIG. 4 shows another example of a fixing plate, (a) is a perspective view of a metal member in the fixing plate, (b) is a plan view of the metal member, (c) is a plan view of the metal member, and (d) is a plan view of the fixing plate. (E) is a plan view of the fixed plate, and (f) is a side view of the fixed plate. 固定プレートの更に他例を示すもので、(a)は固定プレートにおける金属部材の斜視図、(b)は金属部材の平面図、(c)は金属部材の平面図、(d)は固定プレートの斜視図、(e)は固定プレートの平面図、(f)は固定プレートの側面図である。FIG. 4 shows still another example of a fixing plate, (a) is a perspective view of a metal member in the fixing plate, (b) is a plan view of the metal member, (c) is a plan view of the metal member, and (d) is a fixing plate. (E) is a top view of a fixed plate, (f) is a side view of a fixed plate. 固定プレートの別の例を示すもので、(a)は固定プレートにおける金属部材の斜視図、(b)は金属部材の平面図、(c)は金属部材の平面図、(d)は固定プレートの斜視図、(e)は固定プレートの平面図、(f)は固定プレートの側面図である。Fig. 2 shows another example of a fixing plate, (a) is a perspective view of a metal member in the fixing plate, (b) is a plan view of the metal member, (c) is a plan view of the metal member, and (d) is a fixing plate. (E) is a top view of a fixed plate, (f) is a side view of a fixed plate. 本発明にかかる振動型リニアアクチュエータを備えた電気かみそりの斜視図である。It is a perspective view of the electric shaver provided with the vibration type linear actuator concerning this invention. 同上の正面図である。It is a front view same as the above. 同上の分解斜視図である。It is an exploded perspective view same as the above.

符号の説明Explanation of symbols

１ 固定子
２ 可動子
３ シャーシ
１０ 固定プレート
１３ 金属部材
１４ 成形品 DESCRIPTION OF SYMBOLS 1 Stator 2 Movable element 3 Chassis 10 Fixed plate 13 Metal member 14 Molded article

Claims (2)

複数の可動子を固定子で往復駆動する振動型リニアアクチュエータにおいて、固定子が固定されたシャーシの固定部と可動子とに連結された連結板で可動子が往復動自在に支持されているとともに、上記固定部は金属部材と該金属部材に一体成形で被覆された成形品とからなり、該固定部における連結板の連結用の上記成形品は、金属部材外面に設けた肉厚が薄くなった部分もしくは幅が狭くなった部分に設けられていることを特徴とする振動型リニアアクチュエータ。 In a vibration type linear actuator that reciprocally drives a plurality of movers by a stator, the mover is supported in a freely reciprocating manner by a connecting plate connected to a fixed portion of a chassis to which the stator is fixed and the mover. the fixed part consists of molded article coated with integrally molded to the metal member and the metal member, the molded article for connection of the connecting plate of the fixing unit, thinner wall thickness provided on the metal member outer surface A vibration type linear actuator, characterized in that the vibration type linear actuator is provided in a portion where the width is reduced or a portion where the width is reduced. 複数の可動子を固定子で往復駆動する振動型リニアアクチュエータにおいて、固定子が固定されたシャーシの固定部と可動子とに連結された連結板で可動子が往復動自在に支持されているとともに、上記固定部は金属部材と該金属部材に一体成形で被覆された成形品とからなり、該固定部における連結板の連結用の上記成形品は、金属部材に設けた貫通孔部分に設けられていることを特徴とする振動型リニアアクチュエータ。 In a vibration type linear actuator that reciprocally drives a plurality of movers by a stator, the mover is supported in a freely reciprocating manner by a connecting plate connected to a fixed portion of a chassis to which the stator is fixed and the mover. the fixing unit is made up of a metal member and a molded article coated with integrally molded with the metal member, the molded article for connection of the connecting plate of the fixing portion is provided in the through-hole portion formed in the metal member This is a vibration type linear actuator.
JP2006340405A 2006-12-18 2006-12-18 Vibration type linear actuator Expired - Fee Related JP4631846B2 (en)

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KR101027215B1 (en) 2008-04-24 2011-04-06 파나소닉 전공 주식회사 Vibratory linear actuator
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JP6876506B2 (en) * 2017-04-27 2021-05-26 マクセルホールディングス株式会社 Electric razor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1094684A (en) * 1996-09-25 1998-04-14 Matsushita Electric Works Ltd Reciprocative electric razor
JPH11276727A (en) * 1998-03-26 1999-10-12 Matsushita Electric Works Ltd Reciprocating electric shaver
JP2001352740A (en) * 2000-06-07 2001-12-21 Matsushita Electric Works Ltd Vibration type linear actuator
JP2002177665A (en) * 2000-12-15 2002-06-25 Matsushita Electric Works Ltd Reciprocating electric razor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1094684A (en) * 1996-09-25 1998-04-14 Matsushita Electric Works Ltd Reciprocative electric razor
JPH11276727A (en) * 1998-03-26 1999-10-12 Matsushita Electric Works Ltd Reciprocating electric shaver
JP2001352740A (en) * 2000-06-07 2001-12-21 Matsushita Electric Works Ltd Vibration type linear actuator
JP2002177665A (en) * 2000-12-15 2002-06-25 Matsushita Electric Works Ltd Reciprocating electric razor

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