JP3158072B2 - Vibrator fixing method and vibration generating motor - Google Patents
Vibrator fixing method and vibration generating motorInfo
- Publication number
- JP3158072B2 JP3158072B2 JP11971697A JP11971697A JP3158072B2 JP 3158072 B2 JP3158072 B2 JP 3158072B2 JP 11971697 A JP11971697 A JP 11971697A JP 11971697 A JP11971697 A JP 11971697A JP 3158072 B2 JP3158072 B2 JP 3158072B2
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- insertion groove
- vibrator
- press
- shaft insertion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、例えば携帯通信機
器等の呼び出し機能に用いられる振動発生モータの振動
子の固定方法及びこの固定方法を用いて製造された振動
発生モータに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for fixing a vibrator of a vibration generating motor used for a calling function of, for example, a portable communication device, and a vibration generating motor manufactured by using the fixing method.
【０００２】[0002]
【従来の技術】従来、振動発生モータにおける断面円形
状の回転軸に振動子を固定する方法としては、実公平４
−１３８６０号公報や特許第２５１８７８１号公報のよ
うに振動子に回転軸を挿入して振動子の取付部材で回転
軸をかしめて固定する方法、実開平６−４８３６９号公
報のように振動子に回転軸を圧入して固定する方法、或
いは特開平６−９８４９６号公報のように振動子に回転
軸を挿入して溶接で固定する方法などが知られている。2. Description of the Related Art Conventionally, as a method of fixing a vibrator to a rotating shaft having a circular cross section in a vibration generating motor, a method disclosed in Japanese Utility Model Publication No.
A method of inserting a rotating shaft into a vibrator and caulking and fixing the rotating shaft with an attaching member of the vibrator as disclosed in JP-A-13860 and Japanese Patent No. 2518781, A method of press-fitting and fixing a rotating shaft or a method of inserting a rotating shaft into a vibrator and fixing it by welding as disclosed in JP-A-6-98496 are known.
【０００３】[0003]
【発明が解決しようとする課題】ところで、従来の固定
方法では短時間で確実に回転軸に振動子を固定できる利
点があるが、振動子には回転軸に固定させるための取付
部材が必要となる。しかし、モータが小型になり取付部
材の肉厚が薄くなると、クラックの発生による取付部材
の破損や、回転軸をかしめる力の不足による振動子固定
の不安定などの不都合が生じた。By the way, the conventional fixing method has an advantage that the vibrator can be securely fixed to the rotating shaft in a short time, but the vibrator requires a mounting member for fixing to the rotating shaft. Become. However, when the size of the motor is reduced and the thickness of the mounting member is reduced, inconveniences such as breakage of the mounting member due to generation of cracks and instability of fixing the vibrator due to insufficient force for caulking the rotating shaft occur.
【０００４】本発明は、このような問題を解決し、モー
タが小型になっても十分な力で回転軸に振動子を固定で
きる固定方法を提供することを目的とする。また、モー
タが小型になっても回転軸から振動子が外れ難い、耐久
性に優れた振動発生モータを提供することを目的とす
る。An object of the present invention is to solve such a problem and to provide a fixing method capable of fixing a vibrator to a rotating shaft with a sufficient force even when the size of the motor is reduced. It is another object of the present invention to provide a vibration generating motor having excellent durability, in which the vibrator is hardly detached from the rotating shaft even when the motor is downsized.
【０００５】[0005]
【課題を解決するための手段】請求項１の振動子の固定
方法は、軸固定面を有するブロック状の振動子を振動発
生モータの回転軸に偏芯固定させる方法において、軸固
定面に形成された軸挿入溝に回転軸を挿入し、この状態
でプレス部材を軸固定面まで移動させて、軸固定面の軸
挿入溝近傍をプレス部材に突設したプレス片で圧縮する
ことによって、軸固定面の軸挿入溝近傍にプレス凹部を
形成すると同時に、このプレス凹部の形成により内側に
張り出した軸挿入溝の内壁面で回転軸を保持して、回転
軸に振動子を固定させることを特徴とする。According to a first aspect of the present invention, there is provided a method of fixing a vibrator, wherein a block-shaped vibrator having a shaft fixing surface is eccentrically fixed to a rotating shaft of a vibration generating motor. The rotating shaft is inserted into the shaft insertion groove, and the press member is moved to the shaft fixing surface in this state, and the vicinity of the shaft insertion groove on the shaft fixing surface is compressed by a press piece protruding from the press member, thereby forming the shaft. A press recess is formed in the vicinity of the shaft insertion groove on the fixed surface, and at the same time, the rotation shaft is held by the inner wall surface of the shaft insertion groove that protrudes inward due to the formation of the press recess, and the vibrator is fixed to the rotation shaft. And
【０００６】このような構成を採用した場合、軸挿入溝
に回転軸を挿入した状態でプレス片を軸固定面の軸挿入
溝近傍を圧縮すると、プレス片は軸固定面を凹状に埋没
させてプレス凹部を形成すると共に、このプレス凹部に
近接する軸挿入溝の内壁面を内側に張り出させる。この
張り出しによって軸挿入溝の幅が狭まり、回転軸は軸挿
入溝の内壁面に挟み込まれる。その結果、振動子は回転
軸に確実に固定される。In such a configuration, when the press piece is compressed in the vicinity of the shaft insertion groove on the shaft fixing surface with the rotary shaft inserted into the shaft insertion groove, the press piece is buried in the shaft fixing surface in a concave shape. A press recess is formed, and the inner wall surface of the shaft insertion groove close to the press recess protrudes inward. This overhang reduces the width of the shaft insertion groove, and the rotating shaft is sandwiched between the inner wall surfaces of the shaft insertion groove. As a result, the vibrator is securely fixed to the rotating shaft.
【０００７】特に、モータが小型になると、回転軸に振
動子を取り付けるための構造が微細になる。このため、
例えば、取付部材に回転軸を通して固定するといった従
来の固定方法では、取付部材の肉厚が薄くなり、取付部
材が破損し易くなる。請求項１の固定方法は、軸固定面
に軸挿入溝が形成されただけの極めて単純な構造の振動
子にプレス凹部を形成し、このプレス凹部の形成によっ
て狭まった軸挿入溝で回転軸を挟み込んで固定してい
る。このため、モータの小型化によっても振動子の各部
分は一定の肉厚を保持するので、振動子が破損すること
はない。その結果、請求項１の固定方法で回転軸に振動
子が固定された振動発生モータは、モータの小型化によ
っても耐久性能が高い。In particular, when the size of the motor is reduced, the structure for attaching the vibrator to the rotating shaft becomes fine. For this reason,
For example, in a conventional fixing method of fixing the mounting member through a rotating shaft, the thickness of the mounting member is reduced, and the mounting member is easily damaged. According to the fixing method of the first aspect, a press recess is formed in a vibrator having a very simple structure in which only a shaft insertion groove is formed on a shaft fixing surface, and the rotating shaft is formed by the shaft insertion groove narrowed by the formation of the press recess. It is sandwiched and fixed. For this reason, even if the motor is miniaturized, each part of the vibrator maintains a constant thickness, so that the vibrator is not damaged. As a result, the vibration generating motor in which the vibrator is fixed to the rotating shaft by the fixing method according to the first aspect has high durability even when the motor is downsized.
【０００８】請求項２において、振動子は、軸挿入溝の
延在方向と直交する断面が半月形状であることを特徴と
する。このような構成を採用した場合、重心が振動子の
外周方向に寄るので、振動子の回転によって発生する遠
心力が振動発生に対して最も有利になる。According to a second aspect of the present invention, the vibrator is characterized in that a cross section orthogonal to the extending direction of the shaft insertion groove has a half-moon shape. When such a configuration is adopted, the center of gravity is shifted toward the outer peripheral direction of the vibrator, so that the centrifugal force generated by the rotation of the vibrator is most advantageous for the generation of vibration.
【０００９】請求項３の振動発生モータは、軸固定面を
有するブロック状の振動子を断面円形状の回転軸に偏芯
固定した振動発生モータにおいて、軸固定面に形成さ
れ、回転軸を挿入させる軸挿入溝と、軸挿入溝に回転軸
を挿入した状態で、軸固定面の軸挿入溝近傍をプレス片
で圧縮して形成されたプレス凹部と、プレス凹部の形成
により軸挿入溝の幅を回転軸の径よりも狭めるように軸
挿入溝の内壁面に形成され、回転軸を保持して固定させ
る張り出しとを備えることを特徴とする。According to a third aspect of the present invention, there is provided a vibration generating motor in which a block-shaped vibrator having a shaft fixing surface is eccentrically fixed to a rotating shaft having a circular cross section. A shaft insertion groove to be formed, a press recess formed by compressing the vicinity of the shaft insertion groove on the shaft fixing surface with a press piece in a state where the rotating shaft is inserted into the shaft insertion groove, and a width of the shaft insertion groove by forming the press recess. Is formed on the inner wall surface of the shaft insertion groove so as to be smaller than the diameter of the rotating shaft, and a projection for holding and fixing the rotating shaft is provided.
【００１０】このような構成を採用した場合、軸挿入溝
の内壁面に形成された張り出しによって軸挿入溝の幅が
狭まり、回転軸は軸挿入溝の内壁面に挟み込まれる。そ
の結果、振動子は回転軸に確実に固定される。特に、モ
ータが小型になると、回転軸に振動子を取り付けるため
の構造が微細になる。このため、例えば、回転軸固定用
の取付部材を振動子が有する従来の振動発生モータで
は、取付部材の肉厚が薄くなり、取付部材が破損し易く
なる。請求項３の振動発生モータは、軸固定面に軸挿入
溝が形成されただけの極めて単純な構造の振動子を備え
ており、プレス凹部の形成によって狭まった軸挿入溝で
回転軸を挟み込んで固定している。このため、モータの
小型化によっても振動子の各部分は一定の肉厚を保持す
るので、振動子が破損することはない。その結果、請求
項３の振動発生モータは、モータの小型化によっても耐
久性能が高い。When such a configuration is employed, the width of the shaft insertion groove is reduced by the protrusion formed on the inner wall surface of the shaft insertion groove, and the rotating shaft is sandwiched between the inner wall surfaces of the shaft insertion groove. As a result, the vibrator is securely fixed to the rotating shaft. In particular, as the motor becomes smaller, the structure for attaching the vibrator to the rotating shaft becomes finer. For this reason, for example, in a conventional vibration generating motor in which the vibrator has a mounting member for fixing the rotating shaft, the thickness of the mounting member is reduced, and the mounting member is easily damaged. The vibration generating motor according to claim 3 includes a vibrator having a very simple structure in which the shaft insertion groove is formed on the shaft fixing surface, and the rotary shaft is sandwiched between the shaft insertion grooves narrowed by the formation of the press recess. It is fixed. For this reason, even if the motor is miniaturized, each part of the vibrator maintains a constant thickness, so that the vibrator is not damaged. As a result, the vibration generating motor according to claim 3 has high durability even when the motor is downsized.
【００１１】請求項４において、振動子は、軸挿入溝の
延在方向と直交する断面が半月形状であることを特徴と
する。このような構成を採用した場合、重心が振動子の
外周方向に寄るので、振動子の回転によって発生する遠
心力が振動発生に対して最も有利になる。According to a fourth aspect of the present invention, the vibrator is characterized in that the cross section orthogonal to the extending direction of the shaft insertion groove has a half-moon shape. When such a configuration is adopted, the center of gravity is shifted toward the outer peripheral direction of the vibrator, so that the centrifugal force generated by the rotation of the vibrator is most advantageous for the generation of vibration.
【００１２】請求項５において、軸挿入溝は、回転軸の
径と略同一の径を有するＲ溝或いはＵ溝であることを特
徴とする。このような構成を採用した場合、軸挿入溝に
挿入された回転軸と内壁面との間にほとんど隙間ができ
ないので、僅かに軸挿入溝の幅が狭まっただけで、回転
軸は軸挿入溝の内壁面で強く押圧され、回転軸は軸挿入
溝内に確実に固定される。According to a fifth aspect of the present invention, the shaft insertion groove is an R groove or a U groove having substantially the same diameter as the diameter of the rotating shaft. When such a configuration is adopted, there is almost no gap between the rotating shaft inserted into the shaft inserting groove and the inner wall surface, so that the width of the shaft inserting groove is slightly reduced, and the rotating shaft is The rotating shaft is securely pressed into the shaft insertion groove.
【００１３】請求項６において、プレス凹部は、軸挿入
溝の両脇に形成された、開口側に広い断面台形状である
ことを特徴とする。このような構成を採用した場合、プ
レス凹部の形成によって軸挿入溝の内壁面が内側に張り
出すので、軸挿入溝の幅は開口側が最も狭くなる。この
ため、回転軸は軸挿入溝内で確実に固定され、回転軸が
軸挿入溝から外れることはほとんどない。According to a sixth aspect of the present invention, the press concave portion is formed on both sides of the shaft insertion groove and has a trapezoidal cross section wide on the opening side. When such a configuration is adopted, the inner wall surface of the shaft insertion groove projects inward due to the formation of the press concave portion, so that the width of the shaft insertion groove becomes narrowest on the opening side. For this reason, the rotating shaft is securely fixed in the shaft inserting groove, and the rotating shaft hardly comes off the shaft inserting groove.
【００１４】[0014]
【発明の実施の形態】以下、本発明の好適な実施形態に
ついて添付図面を参照して説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.
【００１５】図１は、本実施形態である振動発生モータ
を示す斜視図である。図１に示すように、振動発生モー
タ１は、モータ本体２の回転軸３に偏芯固定されたタン
グステンニッケル製の振動子４を備えている。回転軸３
は、図示するように、従来と同様に断面円形状を有して
いる。振動子４は、円柱を軸線方向に切断したブロック
形状を有しており、この切断面が回転軸３を固定するた
めの軸固定面５となっている。軸固定面５には両端面を
貫通する軸挿入溝６が形成され、振動子４における軸挿
入溝６の延在方向と直交する断面は半月形状である。図
２に示すように、軸挿入溝６は回転軸３の径と略同一の
径を有するＲ溝であり、軸挿入溝６には回転軸３が挿入
されている。また、軸固定面５の軸挿入溝６近傍には、
軸挿入溝６を挟んで一対のプレス凹部７が圧縮成形され
ている。プレス凹部７は開口側に広い断面台形状を有し
ており、プレス凹部７の圧縮成形によって軸挿入溝６の
内壁面６ａに張り出し８が形成されている。この張り出
し８で回転軸３はかしめられ、振動子４は回転軸３に確
実に固定される。なお、軸挿入溝６は回転軸３の径と略
同一の径を有するＵ溝であってもよい。また、軸挿入溝
６の幅は約０．８ｍｍであり、一対のプレス凹部７の間
隔は約１．０ｍｍである。FIG. 1 is a perspective view showing a vibration generating motor according to the present embodiment. As shown in FIG. 1, the vibration generating motor 1 includes a vibrator 4 made of tungsten nickel and eccentrically fixed to a rotating shaft 3 of a motor body 2. Rotary axis 3
Has a circular cross-section as in the prior art, as shown in the figure. The vibrator 4 has a block shape obtained by cutting a cylinder in the axial direction, and the cut surface serves as a shaft fixing surface 5 for fixing the rotating shaft 3. A shaft insertion groove 6 penetrating both end surfaces is formed on the shaft fixing surface 5, and a cross section of the vibrator 4 orthogonal to the extending direction of the shaft insertion groove 6 has a half-moon shape. As shown in FIG. 2, the shaft insertion groove 6 is an R groove having a diameter substantially equal to the diameter of the rotating shaft 3, and the rotating shaft 3 is inserted into the shaft inserting groove 6. In the vicinity of the shaft insertion groove 6 of the shaft fixing surface 5,
A pair of press recesses 7 are compression molded with the shaft insertion groove 6 interposed therebetween. The press recess 7 has a wide trapezoidal cross section on the opening side, and a protrusion 8 is formed on the inner wall surface 6 a of the shaft insertion groove 6 by compression molding of the press recess 7. The rotating shaft 3 is swaged by the overhang 8, and the vibrator 4 is securely fixed to the rotating shaft 3. Note that the shaft insertion groove 6 may be a U-shaped groove having substantially the same diameter as the diameter of the rotating shaft 3. The width of the shaft insertion groove 6 is about 0.8 mm, and the interval between the pair of press recesses 7 is about 1.0 mm.
【００１６】次に、本実施形態である振動子の固定方法
について説明する。図３（ａ）に示すように、振動子４
は振動子固定台９に載置され、振動子固定台９の上方に
タングステンカーバイト製のプレス部材１０が配置され
ている。プレス部材１０の下端には断面台形状の一対の
プレス片１１が突設されており、プレス部材１０の上端
は駆動アーム（図示せず）に固定されている。そして、
駆動アームが上下動することによりプレス部材１０は上
昇及び下降する。Next, a method of fixing the vibrator according to the present embodiment will be described. As shown in FIG.
Is mounted on the vibrator fixing base 9, and a press member 10 made of tungsten carbide is disposed above the vibrator fixing base 9. A pair of press pieces 11 having a trapezoidal cross section project from the lower end of the press member 10, and the upper end of the press member 10 is fixed to a drive arm (not shown). And
As the drive arm moves up and down, the press member 10 moves up and down.
【００１７】軸挿入溝６の径は回転軸３の径と略同一な
ので、図３（ｂ）に示すように、振動子４の一方の端面
から軸挿入溝６に回転軸３を押し込むだけで、簡単に回
転軸３を軸挿入溝６に挿入させることができる。その
後、図４（ｃ）に示すように、駆動アームを駆動させて
プレス部材１０を下降させると、一対のプレス片１１で
振動子４の軸固定面５が均一に圧縮される。その結果、
図４（ｄ）に示すように、一対のプレス凹部７が軸挿入
溝６の両脇に圧縮成形される。また、これらのプレス片
１１の圧縮により軸挿入溝６の内壁面に一対の張り出し
８が形成される。これらの張り出し８によって回転軸３
は軸挿入溝６の内壁面に包み込まれ、軸挿入溝６の内壁
面で回転軸３をかしめることができる。その結果、振動
子４は回転軸３に確実に固定される。Since the diameter of the shaft insertion groove 6 is substantially the same as the diameter of the rotary shaft 3, it is only necessary to push the rotary shaft 3 into the shaft insertion groove 6 from one end face of the vibrator 4 as shown in FIG. Thus, the rotary shaft 3 can be easily inserted into the shaft insertion groove 6. Thereafter, as shown in FIG. 4C, when the drive arm is driven to lower the press member 10, the shaft fixing surface 5 of the vibrator 4 is uniformly compressed by the pair of press pieces 11. as a result,
As shown in FIG. 4D, a pair of press recesses 7 are compression-molded on both sides of the shaft insertion groove 6. Further, a pair of overhangs 8 are formed on the inner wall surface of the shaft insertion groove 6 by the compression of the press pieces 11. The overhang 8 causes the rotation shaft 3
Is surrounded by the inner wall surface of the shaft insertion groove 6, and the rotating shaft 3 can be swaged by the inner wall surface of the shaft insertion groove 6. As a result, the vibrator 4 is securely fixed to the rotating shaft 3.
【００１８】特に、モータが小型になると、回転軸３に
振動子４を取り付けるための構造が微細になる。しかし
ながら、本実施形態の振動発生モータ１は、軸固定面５
に設けられた軸挿入溝６に回転軸３を挿入するといった
単純な構造であるため、モータの小型化によって振動子
４が破損し易くなることはない。また、従来は、振動子
の取付部材をかしめて回転軸を固定していたので、モー
タの小型化によって肉厚の薄くなった取付部材が破損す
ることがあった。しかしながら、本実施形態の固定方法
は、最も肉厚のある軸固定面５に対して垂直に力を加え
て回転軸３をかしめているので、モータが小型になって
も振動子４にクラックや欠けが生じる心配がなく、振動
子４の安定した固定が可能になる。In particular, when the size of the motor is reduced, the structure for attaching the vibrator 4 to the rotating shaft 3 becomes fine. However, the vibration generating motor 1 of the present embodiment has the shaft fixing surface 5
Since the rotary shaft 3 is simply inserted into the shaft insertion groove 6 provided in the motor, the vibrator 4 is not easily damaged by downsizing of the motor. Conventionally, since the rotating shaft is fixed by caulking the mounting member of the vibrator, the mounting member having a reduced thickness may be damaged by downsizing of the motor. However, in the fixing method of the present embodiment, since the rotating shaft 3 is caulked by applying a force perpendicular to the thickest shaft fixing surface 5, even if the motor becomes small, cracks or There is no fear of chipping, and the oscillator 4 can be stably fixed.
【００１９】なお、本発明は上記実施形態に限定される
ことなく、本発明の趣旨から逸脱しない範囲内におい
て、例えば以下のように変更することも可能である。It should be noted that the present invention is not limited to the above-described embodiment, but can be modified as follows, for example, without departing from the spirit of the present invention.
【００２０】（１）上記実施形態では、一対のプレス片
１１を有するプレス部材１０を用いて、振動子４の軸挿
入溝６に一対の張り出し８を形成しているが、単一のプ
レス片１１を有するプレス部材１０を用いて、振動子４
の軸挿入溝６に単一の張り出し８を形成してもよい。ま
た、３個以上のプレス片１１を有するプレス部材１０を
用いて、振動子４の軸挿入溝６に３個以上の張り出し８
を形成してもよい。これらの場合でも、軸挿入溝６の内
壁面で回転軸３を確実にかしめることができる。(1) In the above embodiment, a pair of overhangs 8 are formed in the shaft insertion groove 6 of the vibrator 4 by using the press member 10 having a pair of press pieces 11. The vibrator 4 is formed by using the press member 10 having
A single overhang 8 may be formed in the shaft insertion groove 6. Further, by using a press member 10 having three or more press pieces 11, three or more protrusions 8 are formed in the shaft insertion groove 6 of the vibrator 4.
May be formed. Even in these cases, the rotating shaft 3 can be securely caulked on the inner wall surface of the shaft insertion groove 6.
【００２１】（２）上記実施形態では、振動子４の断面
は、半月形状であったが、長方形状、台形状などであっ
てもよい。(2) In the above embodiment, the cross section of the vibrator 4 is a half-moon shape, but may be a rectangular shape, a trapezoidal shape, or the like.
【００２２】（３）上記実施形態では、プレス凹部７の
断面は、開口側に広い台形状であったが、三角形状、長
方形状などであってもよい。(3) In the above embodiment, the cross section of the press recess 7 has a trapezoidal shape wide on the opening side, but may have a triangular shape, a rectangular shape, or the like.
【００２３】[0023]
【発明の効果】本発明は、以上のように構成されている
ため次のような効果を得ることができる。According to the present invention, the following effects can be obtained since the present invention is configured as described above.
【００２４】即ち、プレス片で軸固定面の軸挿入溝近傍
を押し込み圧縮することにより、プレス片はプレス凹部
を形成すると共に軸挿入溝の内壁面を内側に張り出させ
る。この張り出しによって軸挿入溝の幅が狭まり、回転
軸は軸挿入溝の内壁面に挟み込まれる。このため、振動
子は回転軸に確実に固定され、たとえモータが小型にな
っても回転軸から振動子が外れることはない。その結
果、本発明を用いれば、耐久性に優れた振動発生モータ
が製造できる。That is, by pressing and compressing the vicinity of the shaft insertion groove of the shaft fixing surface with the press piece, the press piece forms a press concave portion and protrudes the inner wall surface of the shaft insertion groove inward. This overhang reduces the width of the shaft insertion groove, and the rotating shaft is sandwiched between the inner wall surfaces of the shaft insertion groove. For this reason, the vibrator is securely fixed to the rotating shaft, and the vibrator does not come off from the rotating shaft even if the motor is downsized. As a result, according to the present invention, a vibration generating motor having excellent durability can be manufactured.
【図１】本発明に係る振動発生モータの一実施形態を示
す斜視図である。FIG. 1 is a perspective view showing an embodiment of a vibration generating motor according to the present invention.
【図２】図１の振動子の要部を示す断面図である。FIG. 2 is a sectional view showing a main part of the vibrator of FIG.
【図３】（ａ）（ｂ）は、本発明に係る振動子の固定方
法の工程を示す斜視図である。FIGS. 3A and 3B are perspective views showing steps of a method for fixing a vibrator according to the present invention.
【図４】（ｃ）（ｄ）は、本発明に係る振動子の固定方
法の工程を示す斜視図である。FIGS. 4 (c) and 4 (d) are perspective views showing steps of a method for fixing a vibrator according to the present invention.
１…振動発生モータ、３…回転軸、４…振動子、５…軸
固定面、６…軸挿入溝、６ａ…内壁面、７…プレス凹
部、８…張り出し、１１…プレス片。DESCRIPTION OF SYMBOLS 1 ... Vibration generating motor, 3 ... Rotating shaft, 4 ... Vibrator, 5 ... Shaft fixing surface, 6 ... Shaft insertion groove, 6a ... Inner wall surface, 7 ... Press recess, 8 ... Overhang, 11 ... Press piece.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) H02K 7/075 ──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. 7 , DB name) H02K 7/075
Claims (6)
振動発生モータの回転軸に偏芯固定させる方法におい
て、 前記軸固定面に形成された軸挿入溝に前記回転軸を挿入
し、この状態でプレス部材を前記軸固定面まで移動させ
て、前記軸固定面の前記軸挿入溝近傍を前記プレス部材
に突設したプレス片で圧縮することによって、前記軸固
定面の前記軸挿入溝近傍にプレス凹部を形成すると同時
に、このプレス凹部の形成により内側に張り出した前記
軸挿入溝の内壁面で前記回転軸を保持して、前記回転軸
に前記振動子を固定させることを特徴とした振動子の固
定方法。1. A method for eccentrically fixing a block-shaped vibrator having a shaft fixing surface to a rotation shaft of a vibration generating motor, comprising: inserting the rotation shaft into a shaft insertion groove formed in the shaft fixing surface; By moving the press member to the shaft fixing surface in the state and compressing the vicinity of the shaft insertion groove of the shaft fixing surface with a press piece protruding from the press member, the vicinity of the shaft insertion groove of the shaft fixing surface Forming a press recess at the same time, holding the rotary shaft on the inner wall surface of the shaft insertion groove that protrudes inward by forming the press recess, and fixing the vibrator to the rotary shaft. How to fix the child.
と直交する断面が半月形状であることを特徴とした請求
項１記載の振動子の固定方法。2. The method of fixing a vibrator according to claim 1, wherein the vibrator has a semi-lunar cross section orthogonal to the extending direction of the shaft insertion groove.
断面円形状の回転軸に偏芯固定した振動発生モータにお
いて、 前記軸固定面に形成され、前記回転軸を挿入させる軸挿
入溝と、 前記軸挿入溝に前記回転軸を挿入した状態で、前記軸固
定面の前記軸挿入溝近傍をプレス片で圧縮して形成され
たプレス凹部と、 前記プレス凹部の形成により前記軸挿入溝の幅を前記回
転軸の径よりも狭めるように前記軸挿入溝の内壁面に形
成され、前記回転軸を保持して固定させる張り出しとを
備えることを特徴とした振動発生モータ。3. A vibration generating motor in which a block-shaped vibrator having a shaft fixing surface is eccentrically fixed to a rotation shaft having a circular cross section, wherein a shaft insertion groove formed on the shaft fixing surface and for inserting the rotating shaft is provided. A press recess formed by compressing the vicinity of the shaft insertion groove on the shaft fixing surface with a press piece in a state where the rotary shaft is inserted into the shaft insertion groove; and a press recess formed by forming the press recess. A vibration generating motor, comprising: a projection formed on an inner wall surface of the shaft insertion groove so as to have a width smaller than a diameter of the rotation shaft, and holding and fixing the rotation shaft.
と直交する断面が半月形状であることを特徴とした請求
項３記載の振動発生モータ。4. The vibration generating motor according to claim 3, wherein a cross section of the vibrator orthogonal to an extending direction of the shaft insertion groove has a half-moon shape.
一の径を有するＲ溝或いはＵ溝であることを特徴とした
請求項３又は請求項４に記載の振動発生モータ。5. The vibration generating motor according to claim 3, wherein the shaft insertion groove is an R groove or a U groove having substantially the same diameter as the diameter of the rotating shaft.
に形成された、開口側に広い断面台形状であることを特
徴とした請求項３から請求項５のいずれか一項に記載の
振動発生モータ。6. The pressing recess according to claim 3, wherein the pressing recess is formed on both sides of the shaft insertion groove and has a trapezoidal cross section wide on the opening side. Vibration generating motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11971697A JP3158072B2 (en) | 1997-05-09 | 1997-05-09 | Vibrator fixing method and vibration generating motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11971697A JP3158072B2 (en) | 1997-05-09 | 1997-05-09 | Vibrator fixing method and vibration generating motor |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000401827A Division JP3766590B2 (en) | 2000-12-28 | 2000-12-28 | Vibration generating motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10313549A JPH10313549A (en) | 1998-11-24 |
| JP3158072B2 true JP3158072B2 (en) | 2001-04-23 |
Family
ID=14768353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11971697A Expired - Lifetime JP3158072B2 (en) | 1997-05-09 | 1997-05-09 | Vibrator fixing method and vibration generating motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3158072B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3708731B2 (en) * | 1998-03-18 | 2005-10-19 | アルプス電気株式会社 | Vibration generator and method of attaching a weight to the vibration generator |
| US6600246B2 (en) | 1998-03-18 | 2003-07-29 | Alps Electric Co., Ltd. | Vibration generating device having a weight caulked to a shaft |
| JP3614093B2 (en) * | 2000-01-28 | 2005-01-26 | 三菱マテリアルシ−エムアイ株式会社 | Small radio vibration generator |
-
1997
- 1997-05-09 JP JP11971697A patent/JP3158072B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10313549A (en) | 1998-11-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3051230B2 (en) | Manufacturing method of stator for small motor | |
| JP2814908B2 (en) | Vibration motor | |
| JPS6325880Y2 (en) | ||
| JP3158072B2 (en) | Vibrator fixing method and vibration generating motor | |
| JP4005665B2 (en) | Method for fixing vibrator of vibration generating motor | |
| JP3766590B2 (en) | Vibration generating motor | |
| EP1193834A2 (en) | Miniature electric motor for generating vibration | |
| JP4119913B2 (en) | Vibration generating motor | |
| JP4119915B2 (en) | Vibration generation motor vibrator | |
| JP4119914B2 (en) | Vibration generating motor | |
| JP3673576B2 (en) | Cylindrical micro vibration motor | |
| JPH0583900A (en) | Small-sized motor and its manufacture | |
| JP3536061B2 (en) | Rotating vibrator and its mounting method | |
| JP4223837B2 (en) | Brush device and motor with brush | |
| JP3390568B2 (en) | Brush device for small motor | |
| JPS6038457Y2 (en) | Electric razor inner blade mounting structure | |
| EP0993126A2 (en) | Antenna holding device and method for mounting antenna | |
| JPH08111960A (en) | Small-sized motor for generating vibration and manufacture of its vibrator | |
| JP2002330567A (en) | Electromagnetic vibration body | |
| JP2571833Y2 (en) | motor | |
| JP2007215376A (en) | Motor and portable device | |
| JP2840547B2 (en) | Method of fixing vibrator for vibration generator of small wireless paging device and crimping jig | |
| JPH0312049Y2 (en) | ||
| JP3431727B2 (en) | Pulley integrated with rotor holder, method of manufacturing the same, and motor using the same | |
| JP2004052848A (en) | Joint and rotary electric machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20010124 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100209 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110209 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120209 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120209 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130209 Year of fee payment: 12 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140209 Year of fee payment: 13 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |