JP2007111619A - Vibration generation device - Google Patents

Vibration generation device Download PDF

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JP2007111619A
JP2007111619A JP2005305029A JP2005305029A JP2007111619A JP 2007111619 A JP2007111619 A JP 2007111619A JP 2005305029 A JP2005305029 A JP 2005305029A JP 2005305029 A JP2005305029 A JP 2005305029A JP 2007111619 A JP2007111619 A JP 2007111619A
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vibrator
elastic member
magnet
vibration
core
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Hiroki Hirashima
浩喜 平島
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Alps Alpine Co Ltd
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Alps Electric Co Ltd
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Priority to JP2005305029A priority Critical patent/JP2007111619A/en
Priority to US11/538,494 priority patent/US7755227B2/en
Priority to CN2006101360870A priority patent/CN1951578B/en
Publication of JP2007111619A publication Critical patent/JP2007111619A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a vibration generation device in which at least two resonance frequencies, at different frequencies, are generated, so that a vibration having large reaction force can be generated in a wide frequency range. <P>SOLUTION: The first elastic member 3 and at least the second elastic member 8 of the vibration generation device have spring constants different from each other and a first vibrator 5 and at least a second vibrator 9 can be vibrated separately. The first vibrator 5 and at least the second vibrator 9 are vibrated separately, so that the vibration having at least two resonance frequencies different in frequency is generated and transmitted to a casing 2. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、振動発生装置に係わり、筐体内部に支持した第１振動子、第２振動子を確実に振動させることが可能な振動発生装置に関する。   The present invention relates to a vibration generator, and more particularly to a vibration generator capable of reliably vibrating a first vibrator and a second vibrator supported in a housing.

従来、ゲーム機等の例えばコントローラの筐体に搭載されて操作者に振動を伝える振動発生装置として、例えば下記特許文献１があり、この特許文献１に記載の振動発生装置を図８に基づいて説明する。
特許文献１記載の振動発生装置５０は、筐体５１の天板５１ａに、板ばねからなる弾性部材５２が取り付けられており、この弾性部材５２は、一方側の固定部５２ａが天板５１ａに固定されて片持ち支持され、他方側の結合部５４が可動子５３に接着剤で固着されている。
また、可動子５３の下面には、おもり５８とコイル５５が固定され、筐体５１には、磁石５６、５６が筐体５１の側壁５１ｂ、５１ｂに沿って設けられ、磁石５６、５６と対向してヨーク５７が設けられている。 2. Description of the Related Art Conventionally, as a vibration generating device that is mounted on a housing of a controller such as a game machine and transmits vibrations to an operator, for example, there is Patent Document 1 below, and the vibration generating device described in Patent Document 1 is based on FIG. explain.
In the vibration generating device 50 described in Patent Document 1, an elastic member 52 made of a leaf spring is attached to a top plate 51a of a casing 51. The elastic member 52 has a fixing portion 52a on one side attached to the top plate 51a. It is fixed and cantilevered, and the other connecting portion 54 is fixed to the movable element 53 with an adhesive.
A weight 58 and a coil 55 are fixed to the lower surface of the mover 53, and magnets 56, 56 are provided along the side walls 51 b, 51 b of the casing 51, and face the magnets 56, 56. A yoke 57 is provided.

図８Ａは、コイル５５に通電されていない状態を示しており、コイル５５はヨーク５７と磁石５６の間に位置し、磁石５６で発生する磁束は、コイル５５を垂直に横切ってヨーク５７に達する。
そして、コイル５５に一方向の電流が与えられると、磁束と電流とによって電磁力ＦがＺ方向に発生し、可動子５３に対してＺ方向への駆動力を与えることができる。
可動子５３の側方には、固定接点５９ａと可動接点５９ｂを有するスイッチ５９が設置され、固定接点５９ａが台座６０上に固定されており、配線６１を介してコイル５５の一方の端部に接続されている。可動接点５９ｂは配線６２を介してパルス発生回路（電流供給回路）６３に接続されている。パルス発生回路６３は、コイル５５の他方の端部に接続されている。
図８Ａに示された状態では、スイッチ５９が接続状態になっており、この接続状態の時に、入力部６４から信号が入力されるとパルス発生回路６３で発生するパルス電圧に同期して、コイル５５に電流が流される。このとき、コイル５５に一方向の電流が与えると、磁束と電流とによって電磁力ＦがＺ方向に発生し、可動子５３がＺ方向に移動する。このことにより、可動接点５９ｂがＺ方向に押し下げられてスイッチ５９の接続状態が維持される。 FIG. 8A shows a state where the coil 55 is not energized, and the coil 55 is located between the yoke 57 and the magnet 56, and the magnetic flux generated by the magnet 56 reaches the yoke 57 across the coil 55 vertically. .
When a current in one direction is applied to the coil 55, an electromagnetic force F is generated in the Z direction by the magnetic flux and the current, and a driving force in the Z direction can be applied to the mover 53.
A switch 59 having a fixed contact 59 a and a movable contact 59 b is installed on the side of the mover 53, and the fixed contact 59 a is fixed on the pedestal 60, and is connected to one end of the coil 55 via the wiring 61. It is connected. The movable contact 59 b is connected to a pulse generation circuit (current supply circuit) 63 via a wiring 62. The pulse generation circuit 63 is connected to the other end of the coil 55.
In the state shown in FIG. 8A, the switch 59 is in a connected state. When a signal is input from the input unit 64 in this connected state, the coil is synchronized with the pulse voltage generated in the pulse generating circuit 63. A current is passed through 55. At this time, when a current in one direction is applied to the coil 55, an electromagnetic force F is generated in the Z direction by the magnetic flux and the current, and the mover 53 moves in the Z direction. As a result, the movable contact 59b is pushed down in the Z direction, and the connected state of the switch 59 is maintained.

また、パルス発生回路６３で発生するパルス電圧の電圧変化に同期して、コイル５５に電流が流れなくなると、電磁力Ｆが作用しなくなり、可動子５３が弾性部材５２の弾性力でＺ方向と反対方向に移動して、スイッチ５９の固定接点５９ａと可動接点５９ｂが非接続状態になる。スイッチ５９が非接続状態になると、パルス発生回路６３にパルス電圧が発生し、このパルス電圧に同期してコイル５５に電流が流れ、電磁力ＦがＺ方向に発生し、可動子５３が再度Ｚ方向に移動する。この一連の動作を繰り返すことによって、振動発生装置５０から出力される振動は、図９に示すように、周波数が例えば４０Ｈｚ付近に共振周波数である共振点Ｐが発生し、この部分の振動が略１０（Ｎ）の大きさで出力される。
そして、この共振点Ｐで出力される略１０（Ｎ）の大きな振動がクリック振動となり、このクリック振動を操作者が認識することができる。
特開２００５−９５７４０号公報 In addition, when no current flows through the coil 55 in synchronization with the voltage change of the pulse voltage generated by the pulse generation circuit 63, the electromagnetic force F does not act, and the mover 53 is moved in the Z direction by the elastic force of the elastic member 52. Moving in the opposite direction, the fixed contact 59a and the movable contact 59b of the switch 59 are disconnected. When the switch 59 is disconnected, a pulse voltage is generated in the pulse generation circuit 63, a current flows in the coil 55 in synchronization with the pulse voltage, an electromagnetic force F is generated in the Z direction, and the mover 53 is again Z Move in the direction. By repeating this series of operations, the vibration output from the vibration generator 50 generates a resonance point P having a resonance frequency near 40 Hz, for example, as shown in FIG. It is output in a size of 10 (N).
A large vibration of approximately 10 (N) output at the resonance point P becomes a click vibration, and the operator can recognize this click vibration.
JP 2005-95740 A

しかし、前述したような従来の振動発生装置５０により発生する振動は、図９に示すように、低い周波数の例えば４０Ｈｚ付近に１つの共振周波数である共振点Ｐが発生し、この共振点Ｐで大きな振動を出力することができるが、共振点Ｐから離れるにつれて（振動が高い周波数になるにつれて）、出力される振動が弱まり、高い周波数の振動を操作者が感知しにくくなるという問題があった。
本発明は、前述したような課題を解決するためになされたもので、異なる周波数で少なくとも２つの共振周波数を含む広い周波数範囲で大きな振動を発生させることができる振動発生装置を提供することを目的とする。 However, as shown in FIG. 9, the vibration generated by the conventional vibration generator 50 as described above generates a resonance point P that is one resonance frequency in the vicinity of a low frequency, for example, 40 Hz. Although a large vibration can be output, there is a problem that as the distance from the resonance point P is increased (as the vibration becomes a higher frequency), the output vibration becomes weaker and it becomes difficult for the operator to detect the high frequency vibration. .
The present invention has been made to solve the above-described problems, and an object thereof is to provide a vibration generator capable of generating large vibrations in a wide frequency range including at least two resonance frequencies at different frequencies. And

前記課題を解決するための第１の手段として本発明の第１の実施の形態の振動発生装置は、内部が空洞で下板を有する筐体と、この筐体の前記下板に第１弾性部材を介し所定寸法の隙間を有して積層支持した第１振動子と、この第１振動子に少なくとも第２弾性部材を介し所定寸法の隙間を有して積層支持した少なくとも第２振動子とを備え、前記第１弾性部材、及び前記少なくとも第２弾性部材は、互いにバネ定数が異なり、前記第１振動子、及び少なくとも第２振動子は、それぞれが振動可能になっており、前記第１振動子、及び前記少なくとも第２振動子のそれぞれが振動することで、異なる周波数で少なくとも２つの共振周波数の振動が発生して前記筐体に伝達されることを特徴とする。
また、前記課題を解決するための第２の手段として、前記バネ定数は、前記第１弾性部材より前記少なくとも第２弾性部材の方を小さくして、前記第１振動子の共振周波数より、前記少なくとも第２振動子の共振周波数の方が低い周波数となるようにしたことを特徴とする。 As a first means for solving the above-described problem, the vibration generator of the first embodiment of the present invention includes a housing having a hollow inside and a lower plate, and a first elastic member on the lower plate of the housing. A first vibrator that is stacked and supported with a gap of a predetermined dimension via a member, and at least a second vibrator that is stacked and supported with a gap of a predetermined dimension via at least a second elastic member on the first vibrator; The first elastic member and the at least second elastic member have different spring constants, and the first vibrator and at least the second vibrator can vibrate, and the first elastic member Each of the vibrator and at least the second vibrator vibrates, so that vibrations of at least two resonance frequencies at different frequencies are generated and transmitted to the housing.
Further, as a second means for solving the above-mentioned problem, the spring constant is smaller than the first elastic member and at least the second elastic member is smaller than the resonance frequency of the first vibrator. It is characterized in that at least the resonance frequency of the second vibrator is lower.

また、前記課題を解決するための第３の手段として、前記第２振動子は、磁性材料からなる棒状のコアとこのコアに巻回したコイルとを有し、前記第１振動子には、前記コアの両端部と対向する位置に所定のギャップを有して磁石が固着され、前記コイルに通電することで前記コアに発生する磁界が前記磁石の磁界に作用して、前記第１振動子、及び前記少なくとも第２振動子のそれぞれが振動し、この振動が前記第１弾性部材を介して前記筐体に伝達されることを特徴とする。
また、前記課題を解決するための第４の手段として、前記第１振動子は、下面に前記第１弾性部材を支持すると共に上面に前記第２弾性部材を支持した下壁と、この下壁の両端部に互いに対向配置した磁性材料からなる一対のヨークとを有し、前記一対のヨークに前記磁石をそれぞれ固着したことを特徴とする。 As a third means for solving the above-mentioned problem, the second vibrator has a rod-shaped core made of a magnetic material and a coil wound around the core. A magnet is fixed with a predetermined gap at a position facing both ends of the core, and a magnetic field generated in the core by energizing the coil acts on the magnetic field of the magnet, so that the first vibrator And at least the second vibrator vibrates, and the vibration is transmitted to the housing via the first elastic member.
As a fourth means for solving the above-mentioned problem, the first vibrator has a lower wall that supports the first elastic member on the lower surface and the second elastic member on the upper surface, and the lower wall. And a pair of yokes made of a magnetic material disposed opposite to each other, and the magnets are fixed to the pair of yokes, respectively.

また、前記課題を解決するための第５の手段として、前記第１振動子に固着した前記磁石は、前記コアの端部と対向する位置に互いに異なる磁極を上下に対向させて配設され、前記コアの端部には、前記磁石との対向面積が小さくなるように前記磁石側に突出させて断面積の小さい突起を形成したことを特徴とする。
また、前記課題を解決するための第６の手段として、前記磁石は、互いに異なる磁極が上下に対向して配設され、互いに異なる磁極の境界部分に凹溝を形成し、この凹溝と対向する位置に前記コアの端部を位置させたことを特徴とする。
また、前記課題を解決するための第７の手段として、前記第１、第２弾性部材は、板バネからなり、前記第１弾性部材は、一端部部側が前記筐体の下板に固着されると共に、他端部側が前記第１振動子の下壁に固着され、前記第２弾性部材は、一端部側が前記第１振動子の下壁に固着されると共に、他端部側が前記第２振動子に固着されていることを特徴とする。 Further, as a fifth means for solving the above-mentioned problem, the magnet fixed to the first vibrator is arranged with the different magnetic poles facing each other at a position facing the end of the core, A protrusion having a small cross-sectional area is formed at the end of the core so as to protrude toward the magnet so that the area facing the magnet is small.
Further, as a sixth means for solving the above-mentioned problem, the magnet is arranged such that different magnetic poles are vertically opposed to each other, and a concave groove is formed at a boundary portion between the different magnetic poles, and this magnet faces the concave groove. The end portion of the core is positioned at a position where the core is to be moved.
Further, as a seventh means for solving the above-mentioned problem, the first and second elastic members are made of leaf springs, and one end portion side of the first elastic member is fixed to the lower plate of the casing. The other end side is fixed to the lower wall of the first vibrator, and the second elastic member has one end side fixed to the lower wall of the first vibrator and the other end side to the second vibrator. It is fixed to the vibrator.

また、前記課題を解決するための第８の手段として本発明の第２の実施の形態の振動発生装置は、互いに対向する下板と上板とを有する筐体と、前記下板上に第１弾性部材を介し所定寸法の隙間を有して積層支持した第１振動子と、少なくとも第２弾性部材を介し所定寸法の隙間を有して前記上板に吊り下げられた少なくとも第２振動子とを備え、前記第１弾性部材及び前記少なくとも第２弾性部材は、互いにバネ定数が異なり、前記第１振動子、及び前記少なくとも第２振動子は、それぞれが振動可能になっており、前記第１振動子、及び前記少なくとも第２振動子のそれぞれが振動することで、少なくとも２つの共振周波数の振動が発生して前記筐体に伝達されることを特徴とする。
また、前記課題を解決するための第９の手段として、前記少なくとも第２振動子は、磁性材料からなる棒状のコアに巻回したコイルを有し、前記第１振動子には、前記コアの両端部と対向する位置に所定のギャップを有して一対の磁石が固着され、前記コイルに通電することで前記コアに発生する磁界が前記磁石の磁界に作用して、前記第１振動子、及び前記少なくとも第２振動子のそれぞれが振動し、前記第１振動子の振動が前記第１弾性部材を介して前記筐体に伝達されると共に、前記少なくとも第２振動子の振動が前記少なくとも第２弾性部材を介して前記筐体に伝達されることを特徴とする。 In addition, as an eighth means for solving the above-described problem, a vibration generating apparatus according to the second embodiment of the present invention includes a housing having a lower plate and an upper plate facing each other, and a housing on the lower plate. A first vibrator that is supported by being laminated with a gap of a predetermined dimension via one elastic member; and at least a second vibrator that is suspended from the upper plate with a gap of a predetermined dimension via at least a second elastic member. The first elastic member and the at least second elastic member have different spring constants, and the first vibrator and the at least second vibrator are each capable of vibrating, When each of the one vibrator and the at least second vibrator vibrates, vibrations of at least two resonance frequencies are generated and transmitted to the housing.
As a ninth means for solving the above-mentioned problem, the at least second vibrator has a coil wound around a rod-shaped core made of a magnetic material, and the first vibrator A pair of magnets are fixed with a predetermined gap at positions facing both ends, and a magnetic field generated in the core by energizing the coil acts on the magnetic field of the magnet, and the first vibrator, And at least the second vibrator vibrates, the vibration of the first vibrator is transmitted to the housing via the first elastic member, and the vibration of the at least second vibrator is the at least first vibration. It is transmitted to the said housing | casing through 2 elastic members, It is characterized by the above-mentioned.

本発明の第１の実施の形態の振動発生装置の第１弾性部材、及び少なくとも第２弾性部材は、互いにバネ定数が異なり、第１振動子、及び第２振動子は、それぞれが振動可能になっており、第１振動子、及び少なくとも第２振動子のそれぞれが振動することで、異なる周波数で少なくとも２つの共振周波数の振動が発生して筐体に伝達されるので、この筐体に伝達される少なくとも２つの共振周波数の振動をクリック振動として確実に感知することができる。更に、異なる周波数で少なくとも２つの共振周波数を含む広い範囲で大きな振動を発生させることができる。
また、第１、第２弾性部材のバネ定数は、第１弾性部材より少なくとも第２弾性部材の方を小さくして、第１振動子の共振周波数より、少なくとも第２振動子の共振周波数の方が低い周波数となるようにしたので、第２振動子の振動は、代１弾性部材を通して確実に狂態に伝達される。 The first elastic member and at least the second elastic member of the vibration generator according to the first embodiment of the present invention have different spring constants, and the first vibrator and the second vibrator can vibrate each other. Since each of the first vibrator and at least the second vibrator vibrates, vibrations of at least two resonance frequencies are generated at different frequencies and transmitted to the housing. The vibration of at least two resonance frequencies to be detected can be reliably detected as a click vibration. Furthermore, large vibrations can be generated in a wide range including at least two resonance frequencies at different frequencies.
In addition, the spring constants of the first and second elastic members are set so that at least the second elastic member is smaller than the first elastic member, and at least the resonance frequency of the second vibrator is higher than the resonance frequency of the first vibrator. Therefore, the vibration of the second vibrator is surely transmitted to the crazy state through the elastic member 1.

また、第２振動子は、磁性材料からなる棒状のコアとこのコアに巻回したコイルとを有し、第１振動子には、コアの両端部と対向する位置に所定のギャップを有して磁石が固着され、コイルに通電することでコアに発生する磁界が磁石の磁界に作用して、第１振動子、及び少なくとも第２振動子のそれぞれが振動し、この振動が第１弾性部材を介して筐体に伝達されるので、筐体を取り付けたゲーム機等の外部機器側に、振動を確実に伝達できる。
また、第１振動子は、下面に第１弾性部材を支持すると共に上面に第２弾性部材を支持した下壁と、この下壁の両端部に互いに対向配置した磁性材料からなる一対のヨークとを有し、一対のヨークに磁石をそれぞれ固着したので、磁石の磁界を高めることができる。 The second vibrator has a rod-shaped core made of a magnetic material and a coil wound around the core, and the first vibrator has a predetermined gap at a position facing both ends of the core. When the magnet is fixed and the coil is energized, the magnetic field generated in the core acts on the magnetic field of the magnet, and the first vibrator and at least the second vibrator vibrate, and this vibration is the first elastic member. Therefore, vibration can be reliably transmitted to an external device such as a game machine to which the housing is attached.
The first vibrator has a lower wall that supports the first elastic member on the lower surface and a second elastic member that is supported on the upper surface, and a pair of yokes made of a magnetic material disposed opposite to each other at both ends of the lower wall. Since the magnets are fixed to the pair of yokes, the magnetic field of the magnets can be increased.

また、第１振動子に固着した磁石は、コアの端部と対向する位置に互いに異なる磁極を上下に対向させて配設され、コアの端部には、磁石との対向面積が小さくなるように磁石側に突出させて断面積の小さい突起を形成したので、コイルに通電する前の初期状態において、磁石の互いに異なる磁極の境界面と同一線上にセンターを位置させたコアが、それぞれの磁石の磁力によって、センターに吸引（磁気バネ）される力を小さくできる。
また、磁石は、互いに異なる磁極が上下に対向して配設され、互いに異なる磁極の境界部分に凹溝を形成し、この凹溝と対向する位置にコアの端部を位置させたので、前記突起と同様の効果を奏することができる。
また、第１、第２弾性部材は、板バネからなり、第１弾性部材は、一端部部側が筐体の下板に固着されると共に、他端部側が第１振動子の下壁に固着され、第２弾性部材は、一端部側が第１振動子の下壁に固着されると共に、他端部側が第２振動子に固着されているので、コイルに通電することで、第１、第２振動子を確実に振動させることができる。 In addition, the magnet fixed to the first vibrator is disposed at the position facing the end of the core with the different magnetic poles facing each other vertically so that the area facing the magnet is small at the end of the core. In the initial state before the coil is energized, the cores whose centers are located on the same line as the boundary surfaces of the different magnetic poles in the initial state before energizing the coils are projected to the magnet side. The magnetic force attracted to the center (magnetic spring) can be reduced.
Further, the magnet is provided with different magnetic poles facing each other up and down, forming a concave groove at the boundary portion of the different magnetic poles, and positioning the end of the core at a position facing the concave groove. The same effect as the projection can be obtained.
The first and second elastic members are made of leaf springs. The first elastic member has one end fixed to the lower plate of the casing and the other end fixed to the lower wall of the first vibrator. In the second elastic member, one end side is fixed to the lower wall of the first vibrator and the other end side is fixed to the second vibrator. The two vibrators can be reliably vibrated.

また、本発明の第２の実施の形態の振動発生装置は、互いに対向する下板と上板とを有する筐体と、下板上に第１弾性部材を介し所定寸法の隙間を有して積層支持した第１振動子と、少なくとも第２弾性部材を介し所定寸法の隙間を有して上板に吊り下げられた第２振動子とを備え、第１弾性部材及び少なくとも第２弾性部材は、互いにバネ定数が異なり、第１振動子、及び少なくとも第２振動子は、それぞれが振動可能になっており、第１振動子、及び少なくとも第２振動子のそれぞれが振動することで、異なる周波数で少なくとも２つの共振周波数の振動が発生して筐体に伝達されるので、筐体に伝達される少なくとも２つの共振周波数の振動をクリック振動として確実に感知できる。更に、異なる周波数で少なくとも２つの共振周波数を含む広い範囲で大きな振動を発生させることができる。
また、第１振動子の振動が第１弾性部材を介して筐体に伝達されると共に、第２振動子の振動が第２弾性部材を介して筐体に伝達されるので、第１、第２振動子のそれぞれの振動が、独立して筐体に伝達され、この筐体に伝達される振動をクリック振動として、更に確実に感知できる。 The vibration generator according to the second embodiment of the present invention includes a casing having a lower plate and an upper plate facing each other, and a gap of a predetermined size on the lower plate via a first elastic member. A first vibrator supported in a stacked manner; and a second vibrator suspended from an upper plate with a gap of a predetermined dimension through at least a second elastic member, wherein the first elastic member and at least the second elastic member are The spring constants are different from each other, and each of the first vibrator and at least the second vibrator can vibrate, and each of the first vibrator and at least the second vibrator vibrates, so that different frequencies are obtained. Since vibrations of at least two resonance frequencies are generated and transmitted to the housing, the vibrations of at least two resonance frequencies transmitted to the housing can be reliably detected as click vibrations. Furthermore, large vibrations can be generated in a wide range including at least two resonance frequencies at different frequencies.
In addition, the vibration of the first vibrator is transmitted to the housing through the first elastic member, and the vibration of the second vibrator is transmitted to the housing through the second elastic member. The vibrations of the two vibrators are independently transmitted to the housing, and the vibration transmitted to the housing can be more reliably sensed as a click vibration.

以下に、本発明の振動装置の実施の形態を図面に基づいて説明する。図１は本発明の第１の実施の形態の振動発生装置の要部断面図であり、図２は図１の２-２断面図であり、図３、図４、図５は本発明の第１の実施の形態の変形例を説明する要部断面図であり、図６は本発明の第２の実施の形態の振動発生装置の要部断面図であり、図７は本発明の振動発生装置の周波数特性を説明する図である。   Embodiments of a vibration device according to the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view of the main part of the vibration generator according to the first embodiment of the present invention, FIG. 2 is a cross-sectional view taken along the line 2-2 of FIG. 1, and FIGS. FIG. 6 is a cross-sectional view of a main part for explaining a modification of the first embodiment, FIG. 6 is a cross-sectional view of a main part of a vibration generator according to the second embodiment of the present invention, and FIG. 7 is a vibration of the present invention. It is a figure explaining the frequency characteristic of a generator.

まず、本発明の第１の実施の形態の振動発生装置１を、図１に基づいて説明すると、外周部には筐体２が配設され、この筐体２は、互いに対向する下板２ａ、上板２ｂと、一対の側板２ｃ、２ｃとにより内部が空洞状になっている。
そして、下板２ａの内面には、所定のバネ定数で板バネからなる一対の第１弾性部材３の一端部側（図示右側）が接着剤等で固着されている。
また、一対の第１弾性部材３の他端部側(図示左側）が自由端となって、下板２ａから所定寸法図示上方側に離間するように折り曲げされている。そして、第１弾性部材３の自由端状の他端部側には、第１振動子５が接着剤等で固着されて支持されて、図示上下方向に振動可能になっている。
即ち、筐体２の下板２亜に第１弾性部材３を介し所定寸法の隙間を有して第１振動子５が積層支持されている。 First, the vibration generator 1 according to the first embodiment of the present invention will be described with reference to FIG. 1. A casing 2 is disposed on the outer peripheral portion, and the casing 2 has a lower plate 2a facing each other. The upper plate 2b and the pair of side plates 2c, 2c form a hollow interior.
And the one end part side (illustration right side) of a pair of 1st elastic member 3 which consists of a leaf | plate spring with the predetermined | prescribed spring constant is being fixed to the inner surface of the lower board 2a with the adhesive agent.
Further, the other end side (the left side in the figure) of the pair of first elastic members 3 is a free end, and is bent so as to be spaced apart from the lower plate 2a by a predetermined dimension in the figure. The first vibrator 5 is fixed and supported on the other end of the first elastic member 3 with an adhesive or the like so that it can vibrate in the vertical direction in the figure.
That is, the first vibrator 5 is laminated and supported on the lower plate 2 of the housing 2 with a gap of a predetermined dimension through the first elastic member 3.

前記第１振動子５は、図示横長状の下壁５ａと、この下壁５ａの左右両端部に互いに対向配置した磁性材料からなる一対のヨーク５ｂ、５ｂとを有している。
また、第１振動子５には、図示左端部側に第１磁界形成部６が形成されると共に、図示右端部側に第２磁界形成部７が形成されている。
そして、図示左端部側の第１磁界形成部６には、下部磁石６ａと、この下部磁石６ａと対向する上部側に上部磁石６ｂが積層され、この下部と上部の磁石６ａ、６ｂが第１振動子５のヨーク５ｂに接着剤等で固着されている。そして下部と上部の磁石６ａ、６ｂとは、図１に示すように、互いに対向する部分が境界面６ｃとなっている。 The first vibrator 5 includes a horizontally long lower wall 5a and a pair of yokes 5b and 5b made of a magnetic material arranged opposite to each other at both left and right ends of the lower wall 5a.
Further, the first vibrator 5 is formed with a first magnetic field forming portion 6 on the left end side in the figure and a second magnetic field forming portion 7 on the right end side in the figure.
In the first magnetic field forming unit 6 on the left end side in the figure, a lower magnet 6a and an upper magnet 6b are stacked on the upper side facing the lower magnet 6a, and the lower and upper magnets 6a and 6b are first. The vibrator 5 is fixed to the yoke 5b with an adhesive or the like. As shown in FIG. 1, the lower and upper magnets 6a and 6b have a boundary surface 6c at a portion facing each other.

また、図示右端部側の第２磁界形成部７には、下部磁石７ａと、この下部磁石７ａと対向する上部側に上部磁石７ｂが積層され、この下部と上部の磁石７ａ、７ｂが第１振動子５の図示右側のヨーク５ｂに接着剤等で固着されている。
そして下部と上部の磁石７ａ、７ｂとは、互いに対向する部分が境界面７ｃとなっている。
また、第１振動子５の下壁５ａ上には、板バネからなる一対の第２弾性部材８が配設されており、この第２弾性部材８のバネ定数は、第１弾性部材３より小さくなっている。 Further, in the second magnetic field forming unit 7 on the right end side in the figure, a lower magnet 7a and an upper magnet 7b are stacked on the upper side facing the lower magnet 7a, and the lower and upper magnets 7a and 7b are the first magnets. The vibrator 5 is fixed to the yoke 5b on the right side of the figure with an adhesive or the like.
The lower and upper magnets 7a and 7b are opposed to each other at a boundary surface 7c.
A pair of second elastic members 8 made of leaf springs are disposed on the lower wall 5 a of the first vibrator 5. The spring constant of the second elastic members 8 is greater than that of the first elastic member 3. It is getting smaller.

前記一対の第２弾性部材８は、一端部側（図示右側）が第１振動子５の下壁５ａに接着剤等で固着され、他端部側（図示左側）が自由端となって下壁５ａから所定寸法図示上方側に離間するように折り曲げされている。そして、第２弾性部材８の自由端状の他端部側には、第２振動子９が接着剤等で固着されて支持されて、図示上下方向に振動可能になっている。
即ち、第２振動子９は、第１振動子５に代２弾性部材８を介し所定寸法の隙間を有して積層支持されている。
また、第２振動子９は、第１、第２磁界形成部６、７間に配設された横長状で磁性材料からなる棒状のコア１０と、このコア１０の外周にボビン(図示せず）を介してコイル１１が巻回されている。 The pair of second elastic members 8 have one end side (right side in the figure) fixed to the lower wall 5a of the first vibrator 5 with an adhesive or the like, and the other end side (left side in the figure) is a free end. It is bent so as to be separated from the wall 5a by a predetermined dimension upward in the figure. The second vibrator 9 is fixed and supported on the other end of the second elastic member 8 with an adhesive or the like, and can vibrate in the vertical direction in the figure.
That is, the second vibrator 9 is laminated and supported on the first vibrator 5 with a gap of a predetermined size through the second elastic member 8.
The second vibrator 9 includes a horizontally long rod-shaped core 10 made of a magnetic material disposed between the first and second magnetic field forming units 6 and 7, and a bobbin (not shown) on the outer periphery of the core 10. ) Through which the coil 11 is wound.

そして、第２振動子９は、コア１０の左右両端部が、第１振動子５のヨーク５ｂに固着した磁石６ａ、６ｂ、及び７ａ、７ｂと所定寸法のギャップを有して対向している。また、第２振動子９は、コイル１１に通電する前の初期状態において、コア１０の左右両端部のセンターと、それぞれの磁石の境界面６ｃ、７ｃとが略同一線上に位置するように、第２弾性部材８の曲げ高さが調整されて組み立てられている。
このような第２振動子９は、図２に示すように、コ字状の保持部材１２に保持されて、この保持部材１２が、第２弾性部材８の自由端状の他端部に支持されて、第２振動子９が図示上下方向に振動可能になっている。 In the second vibrator 9, the left and right end portions of the core 10 are opposed to the magnets 6 a, 6 b and 7 a, 7 b fixed to the yoke 5 b of the first vibrator 5 with a gap of a predetermined dimension. . Further, in the initial state before the coil 11 is energized, the second vibrator 9 is such that the centers of the left and right ends of the core 10 and the boundary surfaces 6c and 7c of the respective magnets are positioned on substantially the same line. The bending height of the second elastic member 8 is adjusted and assembled.
As shown in FIG. 2, the second vibrator 9 is held by a U-shaped holding member 12, and this holding member 12 is supported by the other end of the second elastic member 8 having a free end shape. Thus, the second vibrator 9 can vibrate in the vertical direction in the figure.

このような構成の第１の実施の形態の振動発生装置１の動作を説明すると、まず、コア１０の左右両端部のセンターと、それぞれの磁石の境界面６ｃ、７ｃとが略同一線上に位置した初期状態において、第２振動子９のコイル１１に所定の電流を通電すると、コア１０に磁束が発生し、この磁束がそれぞれの磁石６ａ、６ｂ、及び７ａ、７ｂの磁界に作用する。
すると、それぞれの磁石６ａ、６ｂ、及び７ａ、７ｂと、コア１０との間に作用、反作用の互いに反対向きの力が発生する。そして、第１振動子５と第２振動子９とが、互いに反対方向に振動する。 The operation of the vibration generator 1 according to the first embodiment having such a configuration will be described. First, the centers of the left and right ends of the core 10 and the boundary surfaces 6c and 7c of the respective magnets are positioned on substantially the same line. In the initial state, when a predetermined current is passed through the coil 11 of the second vibrator 9, a magnetic flux is generated in the core 10, and this magnetic flux acts on the magnetic fields of the respective magnets 6a, 6b and 7a, 7b.
Then, forces in the opposite directions of action and reaction are generated between the magnets 6a, 6b and 7a, 7b and the core 10. Then, the first vibrator 5 and the second vibrator 9 vibrate in opposite directions.

そして、第１振動子５が振動することで、図６に示すように、周波数の高い、例えば３３０Ｈｚ付近に共振周波数である第１共振点Ｐ１が発生する。そして、第１共振点Ｐ１で、略６（Ｎ）と大きな振動を出力することができる。
また、同時に第２振動子９が振動することで、周波数の低い、例えば略３８Ｈｚ付近に共振周波数である第２共振点Ｐ２が発生する。そして、第２共振点Ｐ２で、略１０（Ｎ）と大きな振動を出力することができる。
そのために、本発明の振動発生装置１は、従来例のような、振動が高い周波数になるにつれて反力（Ｎ）が大きく減衰することが無く、略２８Ｈｚから略４３０Ｈｚの間の広い周波数範囲で、反力が略２（Ｎ）以上と大きな振動を発生させることができる。
このような振動発生装置１を、例えばゲーム機等の外部機器のコントローラ（図示せず）に用いることで、広い周波数範囲で発生する振動を、操作者が確実に感知することができ、興味あるゲーム機とすることができる。 Then, as the first vibrator 5 vibrates, as shown in FIG. 6, a first resonance point P1 having a high frequency, for example, around 330 Hz, is generated as a resonance frequency. A large vibration of approximately 6 (N) can be output at the first resonance point P1.
At the same time, the second vibrator 9 vibrates to generate a second resonance point P2 having a low frequency, for example, around 38 Hz, which is a resonance frequency. A large vibration of approximately 10 (N) can be output at the second resonance point P2.
For this reason, the vibration generator 1 of the present invention does not attenuate the reaction force (N) as the frequency of vibration increases as in the conventional example, and in a wide frequency range between approximately 28 Hz and approximately 430 Hz. In addition, a large vibration with a reaction force of approximately 2 (N) or more can be generated.
By using such a vibration generator 1 for a controller (not shown) of an external device such as a game machine, for example, the operator can surely detect vibrations generated in a wide frequency range, which is interesting. It can be a game machine.

尚、本発明の実施の形態では、それぞれ第１、第２弾性部材３、８、及び第１、第２振動子５、９を備えて、共振周波数である２つの共振点Ｐ１、Ｐ２を発生させることで説明したが、例えば２つ以上の複数の弾性部材（図示せず）、及び２つ以上の複数の振動子（図示せず）を備えて、２つ以上の複数の共振周波数を発生させるようにしたものでも良い。
即ち、第１弾性部材３と少なくとも第２弾性部材８と、第１振動子５と少なくとも第２振動子９とを備え、第１振動子５及び少なくとも第２振動子９のそれぞれが振動することで、異なる周波数で少なくとも２つの共振周波数が発生して筐体２に伝達するものでも良い。
また、広い周波数範囲で反力の大きな振動を発生させることができる本発明の振動発生装置１に、オーディオ信号（アナログ信号）を入力し、通常のスピーカと同時に音楽を再生させたり、音階に対応した周波数で振動させて、メロディー等を奏でたりすることも可能である。 In the embodiment of the present invention, the first and second elastic members 3 and 8 and the first and second vibrators 5 and 9 are provided to generate two resonance points P1 and P2 that are resonance frequencies. As described above, for example, two or more elastic members (not shown) and two or more vibrators (not shown) are provided to generate two or more resonance frequencies. You may make it let you.
In other words, the first elastic member 3, at least the second elastic member 8, the first vibrator 5 and at least the second vibrator 9 are provided, and each of the first vibrator 5 and at least the second vibrator 9 vibrates. Thus, at least two resonance frequencies may be generated at different frequencies and transmitted to the housing 2.
In addition, an audio signal (analog signal) can be input to the vibration generator 1 of the present invention capable of generating a large reaction force vibration in a wide frequency range, and music can be reproduced simultaneously with a normal speaker, or can be adapted to a scale. It is also possible to play a melody or the like by vibrating at a selected frequency.

また、第１の実施の形態の第１変形例として、図３に示すように、第２振動子９のコア１０の左右両端部には、それぞれの磁石６ａ、６ｂ、及び７ａ、７ｂ側に突出させて断面積の小さい突起１０ａ、１０ａを形成しても良い。前記突起１０ａの厚さ寸法を略１ｍｍと薄く形成することで、コイル１１に通電する前の初期状態において、境界面６ｃ、７ｃと同一線上にセンターを位置させたコア１０に、それぞれの磁石の磁力が作用して、第２弾性部材８の弾性力に抗して、第２振動子９がセンターに吸引（磁気バネ）される力を小さくすることができる。
また、磁気バネの影響を無くする第１変形例の他の方法として、図４に示すように、コア１０の端部と対向する磁石６ａ、６ｂ、及び７ａ、７ｂの境界部分に凹溝６ｄ、７ｄを形成しても良い。
あるいは、図示を省略するが、互いの磁石６ａ、６ｂ及び７ａ、７ｂに着磁する際に、境界面６ｃ、７ｃ近傍に無着磁領域（ニュートラルゾーン）を形成しても良い。 Further, as a first modification of the first embodiment, as shown in FIG. 3, the left and right ends of the core 10 of the second vibrator 9 are arranged on the magnets 6a, 6b and 7a, 7b side. The protrusions 10a and 10a having a small cross-sectional area may be formed. By forming the thickness of the protrusion 10a as thin as approximately 1 mm, the core 10 having the center positioned on the same line as the boundary surfaces 6c and 7c in the initial state before the coil 11 is energized is provided. The magnetic force acts to resist the elastic force of the second elastic member 8, and the force with which the second vibrator 9 is attracted (magnetic spring) to the center can be reduced.
Further, as another method of the first modified example that eliminates the influence of the magnetic spring, as shown in FIG. 4, a groove 6d is formed at the boundary between the magnets 6a, 6b and 7a, 7b facing the end of the core 10. 7d may be formed.
Or although illustration is abbreviate | omitted, when magnetizing each magnet 6a, 6b and 7a, 7b, you may form a non-magnetized area | region (neutral zone) in the boundary surfaces 6c and 7c vicinity.

また、本発明の第１の実施の形態の第２変形例として、図５に示すように、第１、第２弾性部材３、８の一端部側が第１振動子５の下壁５ａの同一位置を挟むように支持して、第１弾性部材３の他端部側が筐体２の下板２ａに支持されると共に、第２弾性部材８の他端部側が第２振動子９を支持するようにしたものでも良い。即ち、第１、第２弾性部材３、８は、一端部側が第１振動子５の下壁５ａの同一位置を支持すると共に、それぞれの他端部側が下壁５ａから互いに離れる方向傾斜させたものでも良い。
このようにすることで、第１振動子５の下壁５ａの同一位置に、第１、第２弾性部材３、８をスポット溶接等で固着することができ、組み立て性を向上できる。 Further, as a second modification of the first embodiment of the present invention, as shown in FIG. 5, the first and second elastic members 3, 8 have the same one end side as the lower wall 5 a of the first vibrator 5. The other end side of the first elastic member 3 is supported by the lower plate 2 a of the housing 2 and the other end side of the second elastic member 8 supports the second vibrator 9. It may be something like this. In other words, the first and second elastic members 3 and 8 are inclined in the direction in which one end side supports the same position of the lower wall 5a of the first vibrator 5 and the other end side is away from the lower wall 5a. Things can be used.
By doing in this way, the 1st, 2nd elastic members 3 and 8 can be fixed to the same position of lower wall 5a of the 1st vibrator 5 by spot welding etc., and assemblability can be improved.

また、本発明の第２の実施の形態を図６に基づいて説明すると、第２の実施の形態の振動発生装置２１は、ほとんどの構成が第１の実施の形態と同じであるが、少なくと第２振動子９が筐体２の上板２ｂに、少なくとも第２弾性部材２２を介して吊り下げられている点が異なる。
このような第２の実施の形態は、第１振動子５、及び第２振動子９が、それぞれ独立して筐体２に支持されているので、第１振動子５に発生する共振周波数と、第２振動子９に発生する共振周波数とを、確実に筐体２に伝達することができる。
そのために、少なくとも２つの共振周波数を操作者が感知することができ、操作性に優れている。また、第２の実施の形態で発生する振動の周波数特性は、図７に示すものと同じであり、広い周波数範囲で大きな振動を発生させることができる。 Further, the second embodiment of the present invention will be described with reference to FIG. 6. The vibration generator 21 of the second embodiment is almost the same as the first embodiment, but there are few And the second vibrator 9 is suspended from the upper plate 2b of the housing 2 via at least the second elastic member 22.
In such a second embodiment, since the first vibrator 5 and the second vibrator 9 are independently supported by the housing 2, the resonance frequency generated in the first vibrator 5 and The resonance frequency generated in the second vibrator 9 can be reliably transmitted to the housing 2.
Therefore, the operator can sense at least two resonance frequencies, and the operability is excellent. Further, the frequency characteristics of vibrations generated in the second embodiment are the same as those shown in FIG. 7, and large vibrations can be generated in a wide frequency range.

本発明の第１の実施の形態の振動発生装置の要部断面図である。It is principal part sectional drawing of the vibration generator of the 1st Embodiment of this invention. 図１の２-２断面図である。FIG. 2 is a sectional view taken along the line 2-2 in FIG. 1. 本発明の第１の実施の形態の変形例を説明する要部断面図である。It is principal part sectional drawing explaining the modification of the 1st Embodiment of this invention. 本発明の第１の実施の形態の変形例を説明する要部断面図である。It is principal part sectional drawing explaining the modification of the 1st Embodiment of this invention. 本発明の第１の実施の形態の変形例を説明する要部断面図である。It is principal part sectional drawing explaining the modification of the 1st Embodiment of this invention. 本発明の第２の実施の形態の振動発生装置の要部断面図である。It is principal part sectional drawing of the vibration generator of the 2nd Embodiment of this invention. 本発明の振動発生装置の周波数特性を説明する図である。It is a figure explaining the frequency characteristic of the vibration generator of this invention. 従来の振動発生装置を説明する概略図である。It is the schematic explaining the conventional vibration generator. 従来の振動発生装置により発生する共振周波数を説明する図である。It is a figure explaining the resonant frequency generate | occur | produced by the conventional vibration generator.

符号の説明Explanation of symbols

１ 第１の実施の形態の振動発生装置
２ 筐体
２ａ 下板
３ 第１弾性部材
５ 第１振動子
５ａ 下壁
５ｂ ヨーク
６ 第１磁界形成部
６ａ 下部磁石
６ｂ 上部磁石
６ｃ 境界面
７ 第２磁界形成部
７ａ 下部磁石
７ｂ 上部磁石
７ｃ 境界面
８ 第２弾性部材
９ 第２振動子
１０ コア
１０ａ 突起
１１ コイル
１２ 保持部材
DESCRIPTION OF SYMBOLS 1 Vibration generator 2 of 1st Embodiment Case 2a Lower board 3 1st elastic member 5 1st vibrator 5a Lower wall 5b Yoke 6 1st magnetic field formation part 6a Lower magnet 6b Upper magnet 6c Boundary surface 7 2nd Magnetic field forming portion 7a Lower magnet 7b Upper magnet 7c Interface 8 Second elastic member 9 Second vibrator 10 Core 10a Projection 11 Coil
12 Holding member

Claims (9)

内部が空洞で下板を有する筐体と、この筐体の前記下板に第１弾性部材を介し所定寸法の隙間を有して積層支持した第１振動子と、この第１振動子に少なくとも第２弾性部材を介し所定寸法の隙間を有して積層支持した少なくとも第２振動子とを備え、
前記第１弾性部材、及び前記少なくとも第２弾性部材は、互いにバネ定数が異なり、前記第１振動子、及び少なくとも第２振動子は、それぞれが振動可能になっており、前記第１振動子、及び前記少なくとも第２振動子のそれぞれが振動することで、異なる周波数で少なくとも２つの共振周波数の振動が発生して前記筐体に伝達されることを特徴とする振動発生装置。 A casing having a hollow inside and having a lower plate, a first vibrator that is laminated and supported on the lower plate of the housing with a gap of a predetermined dimension via a first elastic member, and at least the first vibrator Comprising at least a second vibrator that is laminated and supported with a gap of a predetermined dimension via a second elastic member,
The first elastic member and the at least second elastic member have different spring constants, and the first vibrator and at least the second vibrator are each capable of vibrating, and the first vibrator, And the vibration generating device, wherein each of the at least second vibrators vibrates to generate vibrations of at least two resonance frequencies at different frequencies and transmit them to the housing. 前記バネ定数は、前記第１弾性部材より前記少なくとも第２弾性部材の方を小さくして、前記第１振動子の共振周波数より、前記少なくとも第２振動子の共振周波数の方が低い周波数となるようにしたことを特徴とする請求項１項記載の振動発生装置。   The spring constant is such that at least the second elastic member is smaller than the first elastic member, and the resonance frequency of the at least second vibrator is lower than the resonance frequency of the first vibrator. The vibration generator according to claim 1, wherein the vibration generator is configured as described above. 前記第２振動子は、磁性材料からなる棒状のコアとこのコアに巻回したコイルとを有し、前記第１振動子には、前記コアの両端部と対向する位置に所定のギャップを有して磁石が固着され、前記コイルに通電することで前記コアに発生する磁界が前記磁石の磁界に作用して、前記第１振動子、及び前記少なくとも第２振動子のそれぞれが振動し、この振動が前記第１弾性部材を介して前記筐体に伝達されることを特徴とする請求項１、または２記載の振動発生装置。   The second vibrator has a rod-shaped core made of a magnetic material and a coil wound around the core, and the first vibrator has a predetermined gap at a position facing both ends of the core. When the magnet is fixed and the coil is energized, the magnetic field generated in the core acts on the magnetic field of the magnet, and each of the first vibrator and at least the second vibrator vibrates. The vibration generator according to claim 1, wherein vibration is transmitted to the housing via the first elastic member. 前記第１振動子は、下面に前記第１弾性部材を支持すると共に上面に前記第２弾性部材を支持した下壁と、この下壁の両端部に互いに対向配置した磁性材料からなる一対のヨークとを有し、前記一対のヨークに前記磁石をそれぞれ固着したことを特徴とする請求項３記載の振動発生装置。   The first vibrator has a lower wall supporting the first elastic member on the lower surface and supporting the second elastic member on the upper surface, and a pair of yokes made of a magnetic material disposed opposite to each other at both ends of the lower wall. The vibration generator according to claim 3, wherein the magnet is fixed to the pair of yokes. 前記第１振動子に固着した前記磁石は、前記コアの端部と対向する位置に互いに異なる磁極を上下に対向させて配設され、前記コアの端部には、前記磁石との対向面積が小さくなるように前記磁石側に突出させて断面積の小さい突起を形成したことを特徴とする請求項２乃至４のいずれか１項記載の振動発生装置。   The magnet fixed to the first vibrator is disposed at a position facing the end portion of the core, with different magnetic poles facing each other up and down, and the end portion of the core has a facing area with the magnet. The vibration generator according to any one of claims 2 to 4, wherein a projection having a small cross-sectional area is formed so as to protrude toward the magnet so as to be reduced. 前記磁石は、互いに異なる磁極が上下に対向して配設され、互いに異なる磁極の境界部分に凹溝を形成し、この凹溝と対向する位置に前記コアの端部を位置させたことを特徴とする請求項２乃至４のいずれか１項記載の振動発生装置。   The magnet is configured such that different magnetic poles are vertically opposed to each other, a concave groove is formed at a boundary portion between the different magnetic poles, and an end of the core is positioned at a position facing the concave groove. The vibration generator according to any one of claims 2 to 4. 前記第１、第２弾性部材は、板バネからなり、前記第１弾性部材は、一端部部側が前記筐体の下板に固着されると共に、他端部側が前記第１振動子の下壁に固着され、前記第２弾性部材は、一端部側が前記第１振動子の下壁に固着されると共に、他端部側が前記第２振動子に固着されていることを特徴とする請求項３乃至６のいずれか１項記載の振動発生装置。   The first and second elastic members are made of leaf springs. The first elastic member has one end fixed to the lower plate of the housing and the other end is the lower wall of the first vibrator. 4. The second elastic member, wherein one end side of the second elastic member is fixed to the lower wall of the first vibrator, and the other end side is fixed to the second vibrator. The vibration generator of any one of thru | or 6. 互いに対向する下板と上板とを有する筐体と、前記下板上に第１弾性部材を介し所定寸法の隙間を有して積層支持した第１振動子と、少なくとも第２弾性部材を介し所定寸法の隙間を有して前記上板に吊り下げられた少なくとも第２振動子とを備え、前記第１弾性部材及び前記少なくとも第２弾性部材は、互いにバネ定数が異なり、前記第１振動子、及び前記少なくとも第２振動子は、それぞれが振動可能になっており、前記第１振動子、及び前記少なくとも第２振動子のそれぞれが振動することで、少なくとも２つの共振周波数の振動が発生して前記筐体に伝達されることを特徴とする振動発生装置。   A housing having a lower plate and an upper plate that face each other, a first vibrator that is stacked and supported on the lower plate with a gap of a predetermined size via a first elastic member, and at least a second elastic member At least a second vibrator suspended from the upper plate with a gap of a predetermined dimension, wherein the first elastic member and the at least second elastic member have different spring constants, and the first vibrator And at least the second vibrator can vibrate, and the first vibrator and the at least second vibrator vibrate to generate vibrations of at least two resonance frequencies. The vibration generator is transmitted to the housing. 前記少なくとも第２振動子は、磁性材料からなる棒状のコアに巻回したコイルを有し、前記第１振動子には、前記コアの両端部と対向する位置に所定のギャップを有して一対の磁石が固着され、前記コイルに通電することで前記コアに発生する磁界が前記磁石の磁界に作用して、前記第１振動子、及び前記少なくとも第２振動子のそれぞれが振動し、前記第１振動子の振動が前記第１弾性部材を介して前記筐体に伝達されると共に、前記少なくとも第２振動子の振動が前記少なくとも第２弾性部材を介して前記筐体に伝達されることを特徴とする請求項８記載の振動発生装置。
The at least second vibrator has a coil wound around a rod-shaped core made of a magnetic material, and the first vibrator has a pair with a predetermined gap at positions facing both ends of the core. When the magnet is fixed and the coil is energized, the magnetic field generated in the core acts on the magnetic field of the magnet, so that each of the first vibrator and at least the second vibrator vibrates. Vibration of one vibrator is transmitted to the housing via the first elastic member, and vibration of the at least second vibrator is transmitted to the housing via the at least second elastic member. 9. The vibration generator according to claim 8, wherein
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