JPH1127921A - Vibration actuator for pager - Google Patents

Vibration actuator for pager

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Publication number
JPH1127921A
JPH1127921A JP17369597A JP17369597A JPH1127921A JP H1127921 A JPH1127921 A JP H1127921A JP 17369597 A JP17369597 A JP 17369597A JP 17369597 A JP17369597 A JP 17369597A JP H1127921 A JPH1127921 A JP H1127921A
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Prior art keywords
portion
pager
coil
magnetic
magnetic circuit
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
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JP17369597A
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Japanese (ja)
Inventor
Hideo Suyama
Yutaka Suzuki
裕 鈴木
英夫 陶山
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Hideo Suyama
英夫 陶山
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Abstract

PROBLEM TO BE SOLVED: To secure assembly accuracy easily and to improve reliability, for example, against vibration by fixing the part of the center hole of a vibrator vibrating vertically of moving coil consisting of a magnetic circuit being made entirely of, for example, a permanent magnet, a coil, and a damper by a support post that is made of a non-magnetic material. SOLUTION: A moving coil electroacoustic converter for generating voice is used, a damper 7 for achieving displacement relatively softly in vertical directions for supporting the center position and the vertical positions of a vibrator 1, and a part 9 with a center hole being integrally formed with the damper 7 is supported at a part 19 with the large diameter of the support post. A magnetic circuit has a plate 6 made of a magnetic body with a center hole at one magnetic pole of a permanent magnet 4 which is magnetized in a thickness direction with the center hole, and the other electrode poles also has a yoke 5 made of a magnetic body with the center hole before being fixed by a non-magnetic body post 16 through all center holes. This configuration achieves improved reliability, even if a large shock is repeated from the outside.

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】本発明は、携帯用電話機等に内装され、信号着信時の呼び出しを行うもので、音声だけでなく、振動によっても知らしめるために利用するものである。 BACKGROUND OF THE INVENTION The present invention is furnished in a portable phone or the like, and performs a call in signal incoming, not only the voice is to utilize to occupy also known by the vibration. 特に小型で軽量にする目的で用いることができる。 It may be used particularly for the purpose of the small and light.

【0002】 [0002]

【従来の技術】図8は本発明の前提となる従来の例である。 BACKGROUND ART FIG. 8 is a conventional example as a premise of the present invention. これは、特願平8ー31919、8ー24026 This is, Japanese Patent Application No. 8 over 31919,8 over 24026
1、8ー240262、8ー270790、8ー324 1,8 over 240262,8 over 270790,8 over 324
997、8ー324998で示されたものであるが、コイル39を接着した円環状平坦部44はダンパー43で柔軟に支持され、ダンパー支持部47で磁気回路の中央部で接着固定されるが、接着面積が小さく、また磁気回路の永久磁石40、ヨーク41およびプレート42は中心が一致するように治具で位置を決めて接着固定される。 Although those indicated in 997,8 over 324,998, an annular flat portion 44 which is bonded to the coil 39 is flexibly supported in the damper 43, but are bonded at the center portion of the magnetic circuit a damper supporting section 47, bonding area is small, and the permanent magnet 40 of the magnetic circuit, the yoke 41 and the plate 42 are adhered and fixed position in the jig so that the centers coincide. したがって、磁気回路や振動体の組み立てに時間や人手を要し、小さい面積で接着、固定するゆえに大きな衝撃に対しての信頼性に問題がある。 Therefore, it takes time and labor to assemble the magnetic circuit and the vibration member, the adhesive in a small area, there is a problem in reliability against large impact due to fixing.

【0003】 [0003]

【発明が解決しようとする課題】本発明は、駆動コイルを有する電気音響変換器の構造を用いて、音声と振動をともに発生することができるペイジャー用振動アクチュエータを、組み立てや精度確保に時間や人手がかからなく、強い外部衝撃などに対して信頼性の高い構成にすることである。 [SUMMARY OF THE INVENTION The present invention uses the structure of the electro-acoustic transducer having a drive coil, a pager vibration actuator capable together generate vibration and sound, time Ya to assemble and ensuring accuracy manpower not applied is to reliable configured for such strong external impact.

【0004】 [0004]

【課題を解決するための手段】上記目的を達成するために、従来は電気音響変換器として使用されるムービングコイル型の上下に振動する振動体を、近接して固定した衝突部に衝突させ、外部に振動を発生させるペイジャー用振動アクチュエータにおいて、永久磁石等からなる磁気回路、および、コイルやダンパ等からなる振動体を中央孔の部分で非磁性の材料からなる支持柱で全体を固定する。 To achieve the above object, according to the Invention The conventionally to collide with the vibrating body to vibrate up and down of the moving coil type which is used as an electroacoustic transducer, the collision portion which is fixed in proximity, in pager vibrating actuator for generating a vibration to the external magnetic circuit comprising a permanent magnet or the like, and to fix the whole support column comprising a vibrating body made of a coil or a damper, etc. in the portion of the central hole of a non-magnetic material.

【0005】 [0005]

【発明の実施の形態】本発明の実施例を図面を参照して説明する。 DETAILED DESCRIPTION OF THE INVENTION be described with reference to the embodiment of the present invention with reference to the accompanying drawings.

【0006】図1は本発明のペイジャー用振動アクチュエータの実施例を断面図で示すものである。 [0006] Figure 1 shows an embodiment of a pager vibrating actuator of the present invention in cross section. 携帯電話機の筐体の一部で、耳に当てる部分に相当する衝突カバー2の裏側に設けられる。 Some of the housing of the mobile phone, is provided on the back side of the collision cover 2 corresponding to the portion against the ear. 図1では、音声を発生するムービングコイル型の電気音響変換器を用いている。 In Figure 1, it uses a moving coil type electroacoustic transducer for generating sound. 振動体1の中心位置と上下の位置を支持するため、上下方向に比較的柔らかく変位できるダンパ7を用い、ダンパ7と一体化した中央孔を有する部分9を支持柱の大きい径の部分19に支持する。 To support the center position and the vertical position of the vibration member 1, using the damper 7 that is relatively soft and displaced in the vertical direction, the portion 9 having a central bore which is integrated with the dampers 7 on a large diameter portion 19 of the supporting column To support.

【0007】磁気回路は中央孔を有する厚さ方向に磁化された永久磁石4の片方の磁極に、やはり中央孔を有する磁性体のプレート6を設け、他方の磁極には成形された、これも中央孔を有す磁性体のヨーク5を設け、支持柱16に全ての中央孔を通し固定して構成されるが、前記振動体1もダンパ7を介して支持柱16に固定される。 [0007] one of the magnetic poles of the magnetic circuit permanent magnet 4 magnetized in the thickness direction having a central hole, the plate 6 of the magnetic body having a central bore provided again, the other pole is formed, which is also the yoke 5 of magnetic material having a central hole provided, is constituted by fixing through all central hole in the support pillar 16, the vibrating body 1 is also fixed to the supporting pillar 16 via a damper 7. 支持柱16を金属で形成し、上の端部18、下の端部20を圧力でつぶし、全体を固く固定するとよい。 The support column 16 is formed of metal, the end 18 of the upper, crushed at a pressure below the end 20, may the whole firmly fixed. その際に、金属のリング17を介して上の端部18をつぶすと中央孔を有する部分9は破損されず、安定して固定される。 At that time, the portion 9 having a central bore the crush end 18 of the upper through the metal ring 17 is not damaged, it is stably fixed. この構成により、外部からの大きな衝撃が繰り返されても信頼性を有する。 With this configuration, it is repeated a large impact from the outside with reliability.

【0008】振動する円環状平坦部8の内側に複数のスパイラル状のダンパ7を形成し、他端を磁気回路の中央の支持柱16に固定して全体の径を小さくして、円環状平坦部8、ダンパ7および中央孔を有する部分9を樹脂で一体成形すると、上下方向に柔らかく、中心方向に固く、磁気回路を支持する構成が精度よく簡単にできることになる。 [0008] The plurality of spiral dampers 7 on the inner side of the annular flat portion 8 to vibrate formed, to reduce the overall diameter to secure the other end to the center of the support column 16 of the magnetic circuit, an annular flat part 8, when the portion 9 having a damper 7 and a central hole integrally molded with resin, soft in the vertical direction, firmly towards the center, configured to support the magnetic circuit is able to better easily accuracy. コイル3を巻くボビン21を有する場合は、 If you are having a bobbin 21 to wind the coil 3,
これも一体成形してもよい。 This may also be integrally molded. さらに、磁気回路のヨーク5の外周の外に複数の爪状突起13を有する円環状の樹脂成形材12を衝突カバー2に接着し、爪状突起13にヨーク5の底部を支持するゴム底部15と連続する支持ゴム14を掛けて磁気回路を上下に柔軟に可動にする。 Further, the rubber bottom 15 which is bonded an annular resin molded member 12 having a plurality of claw-like projections 13 on the outside of the outer periphery of the yoke 5 of the magnetic circuit to the collision cover 2, which supports the bottom portion of the yoke 5 to the claw-like protrusion 13 multiplied by the support rubber 14 which is continuous with flexibly the movable magnetic circuit up and down.

【0009】磁気回路のプレート6は中央孔の近傍が低く形成されているため、ダンパ7を支持する支持柱16 [0009] Since the plate 6 of the magnetic circuit is near the center hole is formed lower, supporting columns for supporting the damper 7 16
の径の大きい部分19は、プレート6の高さの割には低い位置に設けることが可能になり、全体の厚さを薄くできる。 Large portion 19 of the diameter of, it becomes possible to provide a low position in spite of the height of the plate 6, it can be made thin overall thickness of. また永久磁石4から生じる磁束を飽和させることなくヨーク5とで形成されるギャップに磁束を導き、重量を低減することが可能になる。 The guide the magnetic flux in the gap formed by the yoke 5 without saturating the magnetic flux generated from the permanent magnet 4, it is possible to reduce the weight.

【0010】対向するヨーク5とプレート6の間にはコイル3が上下に動くことができる円環状の磁束密度の大きいギャップが形成される。 [0010] large gap annular magnetic flux density that can be coil 3 moves up and down between the opposing yoke 5 and the plate 6 is formed. コイル3を接着した振動体1の円環状平坦部8が衝突する固定した衝突カバー2に弾性材10を設け、衝突時の衝撃の緩和と衝突音の発生を抑制する。 An elastic member 10 provided in the collision cover 2 fixed annular flat portion 8 of the vibrating body 1 bonded with the coil 3 collides, suppressing the occurrence of collision of the impact relaxation and the collision sound. この場合、爪状突起13を有する円環状の樹脂成形材12を衝突カバー2に接着し、円環状平坦部8を、弾性材10を介して接着してもよい。 In this case, bonding the annular resin molded member 12 having a claw-like projections 13 in the collision cover 2, the annular flat portion 8 may be bonded via an elastic member 10. この場合、 in this case,
弾性材10を間に介す代わりに、多少とも弾性を有すシート状の接着層や接着剤で円環状平坦部8を接着してもよい。 Instead of going through the elastic member 10 between, it may be adhered to the annular flat portion 8 in a somewhat sheet-like adhesive layer and the adhesive having a elasticity.

【0011】図2は、図1で示される実施例の磁気回路が下に変位し、コイル3の駆動力とコイル3に磁気回路からの反作用が加わり、円環状平坦部8、弾性材10、 [0011] Figure 2 is displaced down the magnetic circuit of the embodiment shown in Figure 1, joined by the reaction of the magnetic circuit to the driving force and the coil 3 of the coil 3, an annular flat portion 8, the elastic member 10,
円環状の樹脂成形材12を介して衝突力を衝突カバー2 Collision impact force through the annular resin molded material 12 covering 2
に与えた状態を示す。 Showing a state in which given to. 周波数が数十ヘルツと低い場合は、衝突カバー2が比較的大きい変位量で振動し、外部に振動が発生させる。 If the frequency is several tens of hertz and low vibrates at a relatively large amount of displacement collision cover 2, vibration is generated to the outside. また周波数が数百ヘルツから3キロヘルツと高い場合は、衝突カバー2が小さな変位量で振動して外部に音を発生することになる。 Also when the frequency is 3 kHz and the high hundreds hertz would collision cover 2 generates a sound to the outside vibration with a small displacement.

【0012】駆動電流をコイル3に印加する際に、図7 [0012] The drive current when applied to the coil 3, 7
で示すように、図2の振動体1が永久磁石4とは反対側の衝突する方向の駆動力になる極性側を主体とした交流電流にするとよい。 As shown, the better to alternating current mainly polar side to become a driving force in a direction for colliding the side opposite to the vibration member 1 is a permanent magnet 4 in FIG. 方形波35を選択した理由は、振動や音のレベルを大きくするためであるが、低い周波数で振動させる際の衝突時に、高周波成分を多く含む不要音を発生する。 The reason for selecting the square wave 35, but in order to increase the level of vibration and noise at the time of collision when vibrating at a low frequency, to generate an unnecessary sound containing many high-frequency components. そのため、片方に極性を持たせた駆動交流電流の方形波35を、方形波の立ち上がりと立ち下がりの傾きを緩和した36、37にすると不要音を抑制することができる。 Therefore, it is possible to suppress unwanted noise square wave 35 of the driving AC current to have a polarity in one, when the 36 and 37 relieve rising and falling slope of the square wave.

【0013】図1の本発明の実施例の断面図は、衝突カバー2は振動体1の上に複数の孔がなく、振動体1は音を直接発生させるのでなく、コイル3の駆動力や磁気回路の反作用の力で衝突カバー2を振動させて音を発生させるため、図8の従来例で示されるようなドーム状の部分を有する振動体38とは異なり、ドーム状の部分を有していない。 [0013] sectional view of an embodiment of the present invention in FIG. 1, the collision cover 2 has no more holes on top of the vibrating body 1, the vibrating body 1 is not to generate a direct sound, Ya driving force of the coil 3 for generating a sound by vibrating the collision cover 2 with the reaction force of the magnetic circuit, unlike the vibrating body 38 having a dome-shaped portion as shown in the conventional example of FIG. 8 has a dome-shaped portion not.

【0014】本発明に使用するアクチュエータは図5の一部切り欠いた斜視図で示される。 [0014] The actuator used in the present invention is shown in perspective view partially cut-away in FIG. 複数のスパイラル状のダンパ7はコイル3を接着固定した円環状平坦部8の内側に設けられ、永久磁石4の径が比較的大きい割には磁気回路のヨーク5の外径は小さいものにできる。 A plurality of spiral dampers 7 provided on the inner side of the annular flat portion 8 and adhere the coil 3 can be the outer diameter of the yoke 5 of the magnetic circuit is small for relatively large split diameter of the permanent magnet 4 .

【0015】図6は本発明のペイジャー用振動アクチュエータを下から見た斜視図であり、ヨーク5を支持柱の下の端部20で固定した状態を示す。 [0015] Figure 6 is a perspective view from below of the vibration actuator for pager according to the present invention, showing a fixed state yoke 5 at the end 20 of the lower support columns. コイルから引き出す電極線31、32は端子33、34に接続するとよい。 Electrode wires 31, 32 drawn out from the coil may be connected to terminals 33 and 34.

【0016】図3は本発明のペイジャー用振動アクチュエータの他の実施例の断面図を示すものである。 [0016] FIG. 3 shows a cross-sectional view of another embodiment of the pager vibrating actuator of the present invention. 支持柱22は金属で形成され、支持柱22を貫通させ径の大きい支持部25でダンパ7と一体化された中央孔を有する部分9を支持するもので、支持柱22の上の端部の大きい径の部分23で抑え、下の端部24を変形させて磁気回路と振動体を固定する構成である。 Support column 22 is formed of a metal, a large support 25 diameter is passed through the support column 22 intended to support a portion 9 having a central hole which is integral with the damper 7, the end portion on the support column 22 suppressed in the portion 23 of larger diameter, a structure for fixing the vibrating body and the magnetic circuit by deforming the end portion 24 of the lower.

【0017】さらに、図4は本発明のペイジャー用振動アクチュエータの他の実施例の断面図を示すものである。 Furthermore, FIG. 4 shows a cross-sectional view of another embodiment of the pager vibrating actuator of the present invention. 支持柱26は途中に径の大きい部分を有し、振動体と一体化された中央孔を有する部分9を支持し、下の端部の大きい径の部分30でヨーク5を抑え、さらに、固定リング29で支持柱26の上の端部28にはめ込み、 Support pillar 26 has a large portion of the diameter in the middle, a portion 9 having a central hole which is integral with the vibrating body is supported, restrained yoke 5 at the portion 30 of larger diameter of the end portion of the lower, further, the fixed fitted on the end portion 28 of the upper support columns 26 by a ring 29,
必要に応じて接着で磁気回路と振動体を固定、支持するものである。 Fixing the magnetic circuit vibrator with an adhesive if necessary, is intended to support.

【0018】 [0018]

【発明の効果】本発明は、以上説明したように構成されているので、以下に記載されるような効果を奏する。 According to the present invention, which is configured as described above, an effect as described below.

【0019】本発明のペイジャー用振動アクチュエータは磁気回路を構成する永久磁石、ヨークやプレート、さらに、振動体をほぼ同じ径の中央孔で全体を支持柱で固定できる。 The pager vibrating actuator of the present invention is a permanent magnet, a yoke and the plate constituting the magnetic circuit, further, it can be fixed by supporting columns across the central hole of substantially the same diameter as the vibrator. したがって、組み立て行程での中心合わせの手間が省け、さらに、同時に固定する事ができる。 Accordingly, eliminates the need for centering of the assembly process, further, it can be fixed at the same time. また実施例で示したように、接着行程を省くことも可能なため、短時間に完成させることができる。 Also as shown in the examples, since also possible to omit the bonding process can be completed in a short time.

【0020】そして、機械的に固定されるため、外部から大きい衝撃が繰り返し加わった場合でも破壊される確率が小さく、信頼性の高いものにできる。 [0020] Then, because it is mechanically fixed, the probability of being destroyed even when applied repeatedly a large external impact is small, it can be a highly reliable. また、接着で固定する場合でも接着面積を比較的大きくできるため、 Moreover, since the relatively large bonding area even when fixing with an adhesive,
同様に信頼性を比較的高いものにすることができる。 Similarly it is possible to make reliable relatively high.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明のペイジャー用振動アクチュエータの断面図である。 1 is a cross-sectional view of a pager vibrating actuator of the present invention.

【図2】図1の動作状態を示す断面図である。 2 is a cross-sectional view showing an operating state of FIG.

【図3】本発明の他の実施例の断面図である。 3 is a cross-sectional view of another embodiment of the present invention.

【図4】本発明の他の実施例の断面図である。 4 is a cross-sectional view of another embodiment of the present invention.

【図5】本発明に使用するアクチュエータの一部断面斜視図である。 5 is a partially sectional perspective view of the actuator used in the present invention.

【図6】図1または図3の実施例を下から見た斜視図である。 6 is a perspective view of an embodiment viewed from below in FIG. 1 or FIG.

【図7】本発明に使用する駆動電流の波形の例を示す図である。 7 is a diagram showing an example of a waveform of the drive current to be used in the present invention.

【図8】本発明の前提の従来のペイジャー用振動アクチュエータの断面図である。 8 is a sectional view of a conventional pager vibrating actuator premise of the present invention.

【符号の説明】 DESCRIPTION OF SYMBOLS

1、38 振動体 2、39 衝突カバー 3、40 コイル 4、41 永久磁石 5、42 ヨーク 6、43 プレート 7、44 ダンパ 8、45 円環状平坦部 9 中央孔を有する部分 10 弾性材 11、46 ヨーク頂部 12 円環状の樹脂成形材 13 爪状突起 14、47 支持ゴム 15 ゴム底部 16、22、26 支持柱 17、29 リング 18、23、28 上の端部 19、25、27 大きい径の部分 20、24、30 下の端部 21 ボビン 31、32 電極線 33、34 端子 35 方形波 1 and 38 vibrator 2,39 collision cover 3,40 portion 10 elastic member having a coil 4 and 41 permanent magnets 5, 42, the yoke 6, 43 plates 7, 44, the damper 8, 45 annular flat portion 9 central hole 11,46 portion of the end portion 19,25,27 larger diameter on the yoke apex 12 annular resin molded member 13 claw-shaped projections 14,47 support rubber 15 rubber bottom 16,22,26 supporting columns 17, 29 ring 18,23,28 20,24,30 lower end 21 the bobbin 31 electrode lines 33, 34 terminal 35 a square wave

Claims (7)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 永久磁石とコイルで磁気回路を構成し、 [Claim 1] constitute a magnetic circuit with a permanent magnet and a coil,
    上下に可動な振動体からなる電気音響変換器において、 In electro-acoustic transducer comprising a movable vibrating member vertically,
    前記コイルへの低周波電気信号入力で前記振動体と一体に動く部分を、固定した衝突部に衝突させることにより外部に振動を発生させるに際し、前記永久磁石からなる磁気回路の中央孔の部分と前記コイルを有する前記振動体の中央孔の部分を非磁性の支持柱で固定したことを特徴とするペイジャー用振動アクチュエータ。 Moving parts together with the vibrator at a low frequency electrical signal input to said coil, when a vibration is generated externally by impinging on the fixed collision portion, and a portion of the central hole of the magnetic circuit composed of the permanent magnet the pager vibration actuator, wherein a portion of the central hole and fixed in a non-magnetic support column of the vibrating body having the coil.
  2. 【請求項2】 前記振動体の前記コイルを支持する円環状平坦部とスパイラル状のダンパ部と前記中央孔を有する部分を樹脂の一体成形で構成したことを特徴とする請求項1記載のペイジャー用振動アクチュエータ。 2. A pager according to claim 1, characterized in that a portion having an annular flat portion and the spiral damper portion and the central bore for supporting the coil of the vibrating member constituted by integral molding of resin use vibration actuator.
  3. 【請求項3】 前記振動体の前記コイルを支持するボビンを円環状平坦部とスパイラル状のダンパ部と前記中央孔を有する部分を樹脂の一体成形で構成したことを特徴とする請求項1記載のペイジャー用振動アクチュータ。 3. A process according to claim 1, wherein the configuring the bobbin for supporting said coil of said vibrating body portion having an annular flat portion and the spiral damper portion and the central hole in the integral molding of resin pager vibration Akuchuta of.
  4. 【請求項4】 前記磁気回路の前記永久磁石の上に中央孔の部分が低くなった構造の磁性体のプレートを用いたことを特徴とする請求項1記載のペイジャー用振動アクチュエータ。 Wherein said magnetic circuit pager vibrating actuator according to claim 1, wherein the portion of the central bore, characterized in that it uses a magnetic plate of the structure becomes lower on the permanent magnet.
  5. 【請求項5】 前記支持柱の途中に大きい径の部分を設け、支持柱の上下の端部を変形させて固定したことを特徴とする請求項1記載のペイジャー用振動アクチュエータ。 Wherein said middle large diameter portion of the support column is provided, pager vibrating actuator according to claim 1, wherein the deforming the upper and lower ends of the support posts, characterized in that the fixing.
  6. 【請求項6】 前記支持柱を通す大きい径の部分を独立して設け、前記支持柱の上の端部は大きい径にして下の端部を変形させて固定したことを特徴とする請求項1記載のペイジャー用振動アクチュエータ。 6. provided independently portion of large diameter passing the support pillar claims, characterized in that fixed to the ends of the upper support columns deforms the end portion of the lower in the larger diameter 1 pager vibration actuator according.
  7. 【請求項7】 前記支持柱を通す大きい径の部分を独立して設け、前記支持柱の下の端部は大きい径にして上の端部に固定リングをはめ込み固定したことを特徴とする請求項1記載のペイジャー用振動アクチュエータ。 7. provided independently portion of larger diameter through the support column, characterized in that the ends of the lower support columns is fixed fitting the fixing ring to the end of the above with the large diameter claims pager vibration actuator in claim 1.
JP17369597A 1997-06-30 1997-06-30 Vibration actuator for pager Pending JPH1127921A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17369597A JPH1127921A (en) 1997-06-30 1997-06-30 Vibration actuator for pager

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP17369597A JPH1127921A (en) 1997-06-30 1997-06-30 Vibration actuator for pager
JP2000100577A JP3493599B2 (en) 1997-06-30 2000-04-03 Voice and low-frequency vibration generator vibrating actuator

Publications (1)

Publication Number Publication Date
JPH1127921A true true JPH1127921A (en) 1999-01-29

Family

ID=15965408

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17369597A Pending JPH1127921A (en) 1997-06-30 1997-06-30 Vibration actuator for pager

Country Status (1)

Country Link
JP (1) JPH1127921A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6377145B1 (en) 1999-03-03 2002-04-23 Tokin Corporation Vibration actuator having magnetic circuit elastically supported by a spiral damper with increased compliance
JP2016082536A (en) * 2014-10-22 2016-05-16 日本電信電話株式会社 Acceleration generator and information presentation method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6377145B1 (en) 1999-03-03 2002-04-23 Tokin Corporation Vibration actuator having magnetic circuit elastically supported by a spiral damper with increased compliance
JP2016082536A (en) * 2014-10-22 2016-05-16 日本電信電話株式会社 Acceleration generator and information presentation method

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