JPH0735500Y2 - Vibration generator for small wireless caller - Google Patents
Vibration generator for small wireless callerInfo
- Publication number
- JPH0735500Y2 JPH0735500Y2 JP1992045927U JP4592792U JPH0735500Y2 JP H0735500 Y2 JPH0735500 Y2 JP H0735500Y2 JP 1992045927 U JP1992045927 U JP 1992045927U JP 4592792 U JP4592792 U JP 4592792U JP H0735500 Y2 JPH0735500 Y2 JP H0735500Y2
- Authority
- JP
- Japan
- Prior art keywords
- vibrator
- rotary shaft
- vibration generator
- motor
- mounting hole
- 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
Description
【０００１】[0001]
【産業上の利用分野】本考案は、小型無線呼び出し機の
振動発生装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration generator for a small wireless calling machine.
【０００２】[0002]
【従来の技術】近年、ページング方式の小型無線呼び出
し機として、振動発生装置を内蔵し、呼び出し音を発す
る代わりに振動を発生させることにより、呼び出しを知
らせる形式ものが普及しつつある。2. Description of the Related Art In recent years, as a paging type small-sized wireless caller, a type that informs a call by incorporating a vibration generator and generating a vibration instead of emitting a ringing sound is becoming popular.
【０００３】図３および図４は、この種の振動発生装置
の一例を示すものである。図中符号１は小型無線機の信
号発生回路に接続される小型モータで、このモータ１の
回転軸２には、黄銅製ブッシュ３が圧入固定され、さら
にこのブッシュ３の外周に扇形板状の振動子４が偏心さ
せられた状態で接着固定されている。そして、この振動
子４は、タングステン焼結合金等の比重の高い金属ある
いは合金によって形成されている。3 and 4 show an example of this type of vibration generator. In the figure, reference numeral 1 is a small motor connected to a signal generation circuit of a small radio, and a brass bush 3 is press-fitted and fixed to a rotating shaft 2 of the motor 1, and a fan-shaped plate-shaped outer periphery of the bush 3 is provided. The vibrator 4 is adhesively fixed in a decentered state. The vibrator 4 is formed of a metal or alloy having a high specific gravity such as a tungsten sintered alloy.
【０００４】なお、前記の例において、回転軸２に振動
子４を直接接着していないのは、振動子４および回転軸
２は接着剤に対する濡れ性が悪く、十分な接着強度が得
られないとの理由によるものである。このため、圧入固
定が容易で、接着剤に対する濡れ性のよい黄銅製ブッシ
ュ３を介裝することにより、接合強度の向上を図ってい
る。In the above example, the vibrator 4 is not directly adhered to the rotary shaft 2 because the vibrator 4 and the rotary shaft 2 have poor wettability with an adhesive and sufficient adhesive strength cannot be obtained. It is because of the reason. Therefore, the joining strength is improved by interposing the brass bush 3 which can be easily press-fitted and fixed and has good wettability to the adhesive.
【０００５】[0005]
【考案が解決しようとする課題】ところで、前述のよう
な振動発生装置においては、振動子４を回転軸２に固定
するに際し、回転軸２にブッシュ３を圧入する工程と、
前記ブッシュ３に接着剤を塗布する工程、さらに、前記
回転軸２に振動子４を取付ける工程とを３工程を要する
ために、生産性が低くコストが嵩むという問題点があっ
た。これを解消するために、本出願人は、図５に示すよ
うに、振動子１０の偏心位置に形成された取付孔１０Ａ
に、モータの回転軸１Ａを挿入し、前記振動子１０の薄
肉部１０Ｂを前記回転軸１Ａの軸方向にずれた２位置Ｐ
において加締めることにより、振動子１０を回転軸１Ａ
に固定する技術を開発した（特開平３−１４６６０５号
公報参照）。しかし、この技術は、振動子を回転軸に固
定するに際しての工程数が少なくなって、生産性が高い
という利点はあるものの、その反面、図５の（ｂ）に示
したように、振動子１０は２点支持で回転軸１Ａに固定
されることになって、振動子１０と回転軸１Ａとの接触
面積が小さく、振動子１０の回転軸１Ａへの固定強度
が、より一層の強力な振動を得ようとするために強力な
モータを使用としたときには、十分ではないということ
を本考案者は見出した。その後の開発、実験等を継続
し、種々の知見を得、実用化に際して加締め方法に係わ
る本考案を考案するに至ったものである。また、周知の
とおり、この種の振動発生装置子においては、振動子の
回転時にに該振動子に作用する遠心力を大きくするため
に、回転軸の軸線に対して振動子の重心側に質量が大き
いほど、また、重心と反対側の部分の質量が小さいほど
好ましい。しかし、上記特開平３−１４６６０５号公報
に記載の技術では、振動子１０が回転する際、この振動
子１０と回転軸１Ａとの接合が弛まないように前記薄肉
部１０Ｂの肉厚を厚くしなければならず、肉厚を厚くす
ると、加締め圧力を大きくする必要があり、また、その
調整も困難であるという問題点がある。本考案は、上記
従来技術の有する問題点に鑑みてなされたものであり、
振動子をモータの回転軸に固定するに際して、生産性の
向上やコストの低減を図るとともに、十分な固定強度を
得ることのできる、小型無線呼び出し機の振動発生装置
を提供することを目的としている。また、本考案は、振
動子の特性上薄いほど好ましい薄肉部の肉厚を厚くする
ことなく、しかも、加締め圧力の調整が不要な小型無線
呼び出し機の振動発生装置を提供することを目的として
いる。 By the way, in the above-described vibration generator, when the vibrator 4 is fixed to the rotary shaft 2, a step of press-fitting the bush 3 into the rotary shaft 2;
There is a problem in that the productivity is low and the cost is high because three steps including the step of applying the adhesive to the bush 3 and the step of attaching the vibrator 4 to the rotating shaft 2 are required. To solve this, the applicant has shown in FIG.
Mounting hole 10A formed in the eccentric position of the vibrator 10
Insert the rotary shaft 1A of the motor into the
Two positions P where the meat portion 10B is displaced in the axial direction of the rotary shaft 1A.
By crimping at the
A technique for fixing to the same has been developed (Japanese Patent Laid-Open No. 3-146605).
See the bulletin). However, this technology does not fix the oscillator on the rotation axis.
Higher productivity due to less number of steps to set
However, on the other hand, it is shown in Fig. 5 (b).
As described above, the oscillator 10 is fixed to the rotary shaft 1A by supporting at two points.
Contact between the vibrator 10 and the rotating shaft 1A
Small area, fixing strength of vibrator 10 to rotating shaft 1A
However, in order to obtain even more powerful vibration,
It's not enough when using a motor
The inventor found out. Continued subsequent development and experiments
However, we obtained various knowledge and were involved in the crimping method when putting it to practical use.
The present invention was devised. Well-known
As you can see, in this type of vibration generator,
To increase the centrifugal force that acts on the vibrator during rotation
In addition, the mass is large on the centroid side of the oscillator with respect to the axis of the rotation axis.
And the smaller the mass on the side opposite the center of gravity
preferable. However, the above-mentioned JP-A-3-146605.
In the technique described in (1), when the vibrator 10 rotates, this vibration
The thin wall is used so that the joint between the child 10 and the rotating shaft 1A is not loosened.
The thickness of the portion 10B must be increased, and the thickness is increased.
Then, it is necessary to increase the crimping pressure, and
There is a problem that adjustment is also difficult. The present invention is the above
It was made in view of the problems of the prior art,
When fixing the oscillator to the rotary shaft of the motor,
Sufficient fixing strength while improving the cost and reducing the cost
Vibration generator for small wireless callers that can be obtained
Is intended to provide. In addition, the present invention
The thinner the pendulum, the better the thickness of the thin part.
Without needing to adjust the caulking pressure
For the purpose of providing a vibration generator for callers
There is.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
の本考案は、モータと、該モータの回転軸に偏心固定さ
れた高比重金属製の振動子とを具備してなる小型無線呼
び出し機の振動発生装置において、前記振動子は、その
偏心位置に取付孔が形成され、この取付孔に前記モータ
の回転軸が挿入されるとともに、前記回転軸の外周部
で、軸線をとおる平面に対して径方向にずれた２位置に
おいて加締められることにより、前記回転軸に固定され
ていることを特徴とする。また、前記加締めの前記２位
置が、好ましくは、前記回転軸と前記振動子の重心とを
結ぶ線とほぼ直交する面上にあり、かつ回転軸の軸心よ
りも振動子の重心側の位置に設定されている。 [Means for Solving the Problems] To achieve the above object
The present invention relates to a vibration generator for a small wireless interrogator comprising a motor and a vibrator made of a metal with a high specific gravity eccentrically fixed to a rotating shaft of the motor, wherein the vibrator is located at the eccentric position. A mounting hole is formed, the rotary shaft of the motor is inserted into the mounting hole, and the outer peripheral portion of the rotary shaft is crimped at two positions radially displaced with respect to a plane passing through the axis, It is characterized by being fixed to the rotating shaft. In addition, the second place of the crimping
Preferably, the rotation axis and the center of gravity of the oscillator are
It is on a plane that is almost orthogonal to the connecting line, and
Rimo is set at the center of gravity of the oscillator.
【０００７】[0007]
【作用】本考案に係わる小型無線呼び出し機の振動発生
装置は、振動子の回転軸の外周部を、回転軸の軸線をと
おる平面に対して径方向にずれた２位置において加締め
ることにより、振動子が、前記回転軸の外周面に、軸線
を挟んだ両側において少なくとも３点において圧接させ
られ、これによって、振動子と回転軸とが強固に結合さ
れる。In the vibration generator for the compact wireless interrogator according to the present invention, the outer peripheral portion of the rotary shaft of the vibrator is swaged at two positions radially displaced from the plane passing through the axis of the rotary shaft. The vibrator is brought into pressure contact with the outer peripheral surface of the rotary shaft at at least three points on both sides of the rotary shaft, whereby the vibrator and the rotary shaft are firmly coupled.
【０００８】また、回転軸と振動子との結合が、振動子
と回転軸との嵌合工程ならびに振動子の加締め工程とい
う簡便な操作によって行われる。Further, the rotation shaft and the vibrator are coupled by a simple operation such as a step of fitting the vibrator and the rotation shaft and a step of crimping the vibrator.
【０００９】さらに、振動子と回転軸との接合面の汚れ
等による接合強度への影響が抑制され、これによって、
接合不良の発生が抑制される。Further, the influence on the joint strength due to dirt on the joint surface between the vibrator and the rotary shaft is suppressed, and by this,
Occurrence of defective bonding is suppressed.
【００１０】[0010]
【実施例】以下、本考案の一実施例を図１および図２を
参照して説明する。なお、以下の説明中、図３および図
４と共通する部分は同一符号を用いて説明を簡略化す
る。図１中、符号１０は振動子であり、この振動子１０
は、ＷーＮｉーＦｅ系、ＷーＮｉーＣｕ系、あるいは、
ＷーＭｏーＮｉーＦｅ系等の、比重が１７〜１８．５ｇ
／ｃｍ3程度の超重合金材料を用いて、粉末冶金法によ
り成形したものである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In the following description, the same parts as those in FIGS. 3 and 4 are designated by the same reference numerals to simplify the description. In FIG. 1, reference numeral 10 is a vibrator, and the vibrator 10
Is W-Ni-Fe system, W-Ni-Cu system, or
Specific gravity of W-Mo-Ni-Fe system is 17-18.5g
It is formed by a powder metallurgy method using a super-polymerized gold material of about / cm3.
【００１１】ここで、前述の振動子１０の成形方法の一
具体例を示すと、Ｗ粉末；８９重量％〜９７重量％、Ｎ
ｉ粉末；１．５重量％〜６重量％、Ｆｅ粉末；０．５重
量％〜４重量％、および、Ｍｏ粉末；２重量％〜５重量
％からなる組成の混合粉末を１ｔｏｎ／ｃｍ2〜４ｔｏ
ｎ／ｃｍ2で扇板状に圧粉成形し、この圧粉体を０℃〜
ー６０℃の露点の水素気流中またはアンモニア分解ガス
中で液相焼結する。A specific example of the method of molding the vibrator 10 described above is as follows: W powder; 89% by weight to 97% by weight, N
i powder; 1.5 wt% to 6 wt%, Fe powder; 0.5 wt% to 4 wt%, and Mo powder; 2 wt% to 5 wt% mixed powder having a composition of 1 ton / cm 2 to 4to
It is pressed into a fan plate at n / cm 2 , and this pressed powder is
Liquid phase sintering is performed in a hydrogen stream having a dew point of −60 ° C. or in an ammonia decomposition gas.
【００１２】さらに、真空、中性、還元性の何れかの雰
囲気中において７００℃〜１４３０±３０℃に加熱後、
少なくとも３００℃まで４０℃／ｍｉｎの冷却速度で冷
却する熱処理を施す。Further, after heating to 700 ° C. to 1430 ± 30 ° C. in any of vacuum, neutral and reducing atmospheres,
A heat treatment is performed to cool at least 300 ° C. at a cooling rate of 40 ° C./min.
【００１３】このような処理によれば、一般的な同種合
金に比べて格段に高い展性を付与することができ、本願
構成の振動子１０に好適な特性が得られる。According to such a treatment, it is possible to impart markedly higher malleability as compared with a general alloy of the same kind, and it is possible to obtain suitable characteristics for the vibrator 10 having the constitution of the present application.
【００１４】なお、前述の各成分の配合比が前記数値の
範囲を外れると、振動子１０の展性が低下して脆くな
り、加締める際に割れを生じるおそれがあるものであ
る。If the mixing ratio of the above-mentioned respective components deviates from the range of the above numerical values, the malleability of the vibrator 10 is lowered and the vibrator 10 becomes brittle, and cracks may occur during crimping.
【００１５】一方、前記振動子１０の扇形の中心部近傍
には、モータ１の回転軸２の外径と略等しい内径の取付
孔１１が厚さ方向に貫通して形成されている。On the other hand, a mounting hole 11 having an inner diameter substantially equal to the outer diameter of the rotary shaft 2 of the motor 1 is formed in the vicinity of the central portion of the vibrator 10 so as to penetrate in the thickness direction.
【００１６】そして、この振動子１０は、取付孔１１内
に回転軸２を挿入したのちに、図１に示すように、この
回転軸２の外周部で、軸線Ｘをとおる平面Ｃに対して径
方向にずれた２位置（本実施例においては、図１に
Ｐ 1 ，Ｐ 2 で示すように、振動子１０の重心側に距離γだ
けずれた２位置）において、ポンチ等によって加締めら
れることにより、前記回転軸２に固定されている。After the rotary shaft 2 is inserted into the mounting hole 11 of the vibrator 10, as shown in FIG. 1, the outer peripheral portion of the rotary shaft 2 with respect to the plane C passing through the axis line X. Two positions displaced in the radial direction (in this embodiment, in FIG.
As shown by P 1 and P 2 , the distance γ is on the centroid side of the oscillator 10.
It is fixed to the rotating shaft 2 by being caulked by a punch or the like at the two displaced positions ).
【００１７】以上の構成からなる振動発生装置にあって
は、振動子１０をモータ１の回転軸２に加締めることに
よって固定したので、組立作業が簡素化され、かつ、ブ
ッシュや接着剤を使用しないことと相俟って、コストの
低減が図られるとともに、自動機への適用が容易にな
る。In the vibration generator having the above structure, the vibrator 10 is fixed to the rotating shaft 2 of the motor 1 by crimping, so that the assembling work is simplified and a bush and an adhesive are used. In combination with not doing so, the cost can be reduced and the application to an automatic machine becomes easy.
【００１８】また、前述した加締めの際に振動子１０
は、図２の（ａ）にＷで示すように、その取付孔１１の
内面が、その半周以上に亙って前記回転軸２の表面に接
触するように塑性変形させられることとなり、振動子１
１の回転軸２との大きな接触面積が得られ、この結果、
両者が強固に接合される。なお、振動子１０は、図２の
（ｂ）に示すように、３箇所において回転軸２に固定さ
れる場合もある。 Further, when the above-mentioned caulking is performed, the vibrator 10
2A , as shown by W in FIG. 2A, the inner surface of the mounting hole 11 is plastically deformed so as to come into contact with the surface of the rotating shaft 2 over the half circumference thereof, and 1
A large contact area with the rotating shaft 2 of 1 is obtained, and as a result,
Both are firmly joined. The oscillator 10 is shown in FIG.
As shown in (b), it is fixed to the rotary shaft 2 at three points.
In some cases
【００１９】さらに、振動子１０と回転軸２との接合強
度が、接合界面の汚れの影響を殆ど受けないので、前記
効果と相俟って、接合不良の発生頻度が減少し、歩留ま
りが向上する。Further, since the bonding strength between the vibrator 10 and the rotary shaft 2 is hardly affected by the contamination at the bonding interface, the frequency of bonding failure is reduced and the yield is improved in combination with the above effect. To do.
【００２０】さらにまた、本実施例においては、加締め
位置を、回転軸２と振動子１０の重心とを結ぶほぼ直交
するする面上で、かつ回転軸２の軸心よりも振動子１０
の重心側に設定したことにより、取付孔１１の内面が、
振動子１０の重心と反対側において回転軸２と接触させ
られることとなり、この結果、振動子１０によって回転
軸２に与えられる荷重の方向において隙間がなくなり、
がた等に起因して生じる耐久性の低下が防止される。そ
して、特開平３−１４６６０５号公報のような薄肉部を
加締めものではないので、振動子１０の特性上薄いほど
好ましい薄肉部の肉厚を厚くすることなく、しかも、加
締め圧力の調整も不要である。 Furthermore, in the present embodiment, the caulking position is substantially orthogonal to the rotation axis 2 and the center of gravity of the vibrator 10.
The oscillator 10 on the surface to be rotated and more than the axis of the rotary shaft 2.
The inner surface of the mounting hole 11 is
The vibrator 10 is brought into contact with the rotary shaft 2 on the side opposite to the center of gravity, and as a result, there is no gap in the direction of the load applied to the rotary shaft 2 by the vibrator 10,
A decrease in durability caused by rattling or the like is prevented. So
Then, a thin portion such as that disclosed in Japanese Patent Laid-Open No. 3-146605 is used.
Since it is not caulked, the thinner the characteristics of the vibrator 10,
Without increasing the preferable thin wall thickness,
No adjustment of tightening pressure is required.
【００２１】なお、前述した構成は一実施例であって、
設計要求等に基づき種々変更可能である。例えば、前記
実施例においては、加締め位置を回転軸２と振動子１０
の重心とを結ぶ線とほぼ直交する面で、かつ、回転軸２
の軸心よりも振動子１０の重心側に位置する２位置で加
締めを行った例について示したが、これに限定されるも
のではなく、前記重心と反対側にずれた位置であっても
よく、一方の加締位置を重心側に他方をその反対側に位
置させるようにしてもよいものである。The above-mentioned configuration is one embodiment, and
Various changes can be made based on design requirements. For example, in the above embodiment, the crimping position is set to the rotary shaft 2 and the vibrator 10.
On a plane that is substantially orthogonal to the line connecting the center of gravity of the
Although an example in which the caulking is performed at two positions located closer to the center of gravity of the vibrator 10 than the axis center of is shown, the present invention is not limited to this, and even if the position is shifted to the side opposite to the center of gravity. Of course, one caulking position may be positioned on the center of gravity side and the other caulking position may be positioned on the opposite side.
【００２２】[0022]
【考案の効果】以上説明したように、本願考案に係わる
小型無線呼び出し機の振動発生装置は、モータと、該モ
ータの回転軸に偏心固定された高比重金属製の振動子と
を具備してなる小型無線呼び出し機の振動発生装置にお
いて、前記振動子は、その偏心位置に取付孔が形成さ
れ、この取付孔に前記モータの回転軸が挿入されるとと
もに、前記回転軸の外周部で、軸線をとおる平面に対し
て径方向にずれた２位置において加締められることによ
り、前記回転軸に固定されていることを特徴とするもの
で、次のような優れた効果を奏する。As described above, the vibration generator for a compact wireless interrogator according to the present invention comprises a motor and a vibrator of high specific gravity metal eccentrically fixed to the rotary shaft of the motor. In the vibration generator of the small wireless calling device, the vibrator has a mounting hole formed at an eccentric position, the rotary shaft of the motor is inserted into the mounting hole, and an axis line is formed at an outer peripheral portion of the rotary shaft. It is characterized in that it is fixed to the rotary shaft by being caulked at two positions that are displaced in the radial direction with respect to the plane passing through, and has the following excellent effects.
【００２３】振動子をモータの回転軸に加締めることに
よって固定したので、組立作業が簡素化され、かつ、ブ
ッシュや接着剤を使用しないことと相俟って、コストの
低減を図ることができる。Since the vibrator is fixed to the rotary shaft of the motor by crimping, the assembling work is simplified, and the cost can be reduced in combination with not using the bush or the adhesive. .
【００２４】また、振動子の加締めの際に、振動子の取
付孔の内面を、その半周以上に亙って前記回転軸の表面
に接触させ、振動子と回転軸との大きな接触面積を確保
し、両者を強固に接合することができる。Further, when the vibrator is caulked, the inner surface of the mounting hole of the vibrator is brought into contact with the surface of the rotary shaft over more than half the circumference thereof, so that a large contact area between the vibrator and the rotary shaft is ensured. It is possible to secure them and firmly bond them.
【００２５】さらに、振動子と回転軸との接触強度が、
接合界面の汚れの影響を殆ど受けないので、前記効果と
相侯って、接合不良の発生頻度を減少させ、歩留まりを
向上させることができる。また、加締め位置を、回転軸
と振動子の重心とを結ぶほぼ直交するする面上で、かつ
回転軸の軸心よりも振動子の重心側に設定したことによ
り、特開平３−１４６６０５号公報のような薄肉部を加
締めるものではないので、振動子１０の特性上薄いほど
好ましい薄肉部の肉厚を厚くすることなく、しかも、加
締め圧力の調整も不要である。 Furthermore, the contact strength between the vibrator and the rotary shaft is
Since it is hardly affected by the contamination of the bonding interface, the frequency of occurrence of bonding failure can be reduced and the yield can be improved in combination with the above effect. Also, set the crimping position to the rotation axis.
On a plane that is almost orthogonal to the center of gravity of the oscillator, and
Because it is set closer to the center of gravity of the oscillator than the axis of the rotary shaft.
In addition, a thin-walled portion as in Japanese Patent Laid-Open No. 3-146605 is added.
Since it is not something to tighten, the thinner the oscillator 10
Without increasing the preferable thin wall thickness,
No adjustment of tightening pressure is required.
【図１】本考案の一実施例を示す振動子と回転軸との正
面図である。FIG. 1 is a front view of a vibrator and a rotary shaft according to an embodiment of the present invention.
【図２】本考案の一実施例を示す振動子と回転軸との接
合部分の拡大正面図である。FIG. 2 is an enlarged front view of a joint portion between a vibrator and a rotary shaft according to an embodiment of the present invention.
【図３】従来の小型無線呼び出し機の振動発生装置を示
す側面図である。FIG. 3 is a side view showing a vibration generator of a conventional small-sized wireless interrogator.
【図４】従来の小型無線呼び出し機の振動発生装置を示
す正面図である。FIG. 4 is a front view showing a vibration generator of a conventional small-sized wireless calling machine.
【図５】（ａ）は他の従来の振動発生装置における回転
軸と振動子の側面図、（ｂ）は（ａ）の正面図である。5A is a side view of a rotary shaft and a vibrator in another conventional vibration generator, and FIG. 5B is a front view of FIG.
１ モータ ２ 回転軸 １０ 振動子 １１ 取付孔 1 motor 2 rotating shaft 10 oscillator 11 mounting hole
Claims (2)
された高比重金属製の振動子とを具備してなる小型無線
呼び出し機の振動発生装置において、前記振動子は、そ
の偏心位置に取付孔が形成され、この取付孔に前記モー
タの回転軸が挿入されるとともに、前記回転軸の外周部
で、軸線をとおる平面に対して径方向にずれた２位置に
おいて加締められることにより、前記回転軸に固定され
ていることを特徴とする小型無線呼び出し機の振動発生
装置。1. A vibration generator for a compact wireless interrogator comprising a motor and a vibrator made of a metal with a high specific gravity, which is eccentrically fixed to a rotating shaft of the motor, wherein the vibrator is located at an eccentric position. A mounting hole is formed, the rotary shaft of the motor is inserted into the mounting hole, and the outer peripheral portion of the rotary shaft is crimped at two positions radially displaced with respect to a plane passing through the axis, A vibration generator for a small wireless interrogator, wherein the vibration generator is fixed to the rotary shaft.
と前記振動子の重心とを結ぶ線とほぼ直交する面上にあOn the plane almost orthogonal to the line connecting the
り、かつ回転軸の軸心よりも振動子の重心側の位置に設The center of gravity of the oscillator relative to the axis of the rotary shaft.
定されている請求項１に記載の小型無線呼び出し機の振The vibration of the small wireless calling machine according to claim 1, which is defined.
動発生装置。Motion generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992045927U JPH0735500Y2 (en) | 1992-07-01 | 1992-07-01 | Vibration generator for small wireless caller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992045927U JPH0735500Y2 (en) | 1992-07-01 | 1992-07-01 | Vibration generator for small wireless caller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0619336U JPH0619336U (en) | 1994-03-11 |
| JPH0735500Y2 true JPH0735500Y2 (en) | 1995-08-09 |
Family
ID=12732896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1992045927U Expired - Lifetime JPH0735500Y2 (en) | 1992-07-01 | 1992-07-01 | Vibration generator for small wireless caller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0735500Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH075931B2 (en) * | 1990-08-02 | 1995-01-25 | 株式会社東富士製作所 | Resonator for small vibration generator and manufacturing method thereof |
-
1992
- 1992-07-01 JP JP1992045927U patent/JPH0735500Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0619336U (en) | 1994-03-11 |
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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: 19960206 |
|
| EXPY | Cancellation because of completion of term |