JPH0413860Y2 - - Google Patents
Info
- Publication number
- JPH0413860Y2 JPH0413860Y2 JP1987104347U JP10434787U JPH0413860Y2 JP H0413860 Y2 JPH0413860 Y2 JP H0413860Y2 JP 1987104347 U JP1987104347 U JP 1987104347U JP 10434787 U JP10434787 U JP 10434787U JP H0413860 Y2 JPH0413860 Y2 JP H0413860Y2
- Authority
- JP
- Japan
- Prior art keywords
- vibrator
- rotating shaft
- motor
- mounting hole
- vibration generator
- 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
Links
- 230000005484 gravity Effects 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 description 12
- 230000001070 adhesive effect Effects 0.000 description 12
- 238000002788 crimping Methods 0.000 description 6
- 229910018054 Ni-Cu Inorganic materials 0.000 description 4
- 229910018481 Ni—Cu Inorganic materials 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 230000007774 longterm Effects 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 229910003271 Ni-Fe Inorganic materials 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Landscapes
- Structure Of Receivers (AREA)
- Mobile Radio Communication Systems (AREA)
Description
【考案の詳細な説明】
［産業上の利用分野］
本考案は、小型無線呼出機の振動発生装置に関
する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a vibration generator for a small radio paging machine.
［従来の技術］
最近、ページング方式の小型無線呼出機とし
て、振動発生装置を内蔵し、呼出音を発する代わ
りに音を立てずに振動で呼び出しを知らせる形状
のものが普及しつつある。[Prior Art] Recently, paging-type compact radio calling devices that have a built-in vibration generator and that silently notify a call by vibration instead of emitting a ringing tone have become popular.
第３図および第４図は、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
呼出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１Ａには黄銅製のブツ
シユが圧入固定され、さらにこのブツシユ２の外
周に扇板状の振動子３が偏心して接着固定されて
いる。この振動子３は、タングステン焼結合金か
らなり、比重が極めて大きいものである。 3 and 4 show an example of this type of vibration generator. Reference numeral 1 in the figure is a small motor that is connected to the signal generation circuit of a small radio paging machine. The vibrator 3 is eccentrically fixed with adhesive. This vibrator 3 is made of tungsten sintered alloy and has extremely high specific gravity.
なお、前記回転軸１Ａに振動子３を直接接着し
ていないのは、振動子３および回転軸１Ａは接着
剤に対する漏れ性が悪く、充分な接着剤強度が得
られないとの理由による。このため、圧入固定が
容易で、接着剤に対する漏れ性の良い黄銅製ブツ
シユ２を介装することにより、接合強度の向上を
図つているのである。 The reason why the vibrator 3 is not directly bonded to the rotary shaft 1A is that the vibrator 3 and the rotary shaft 1A have poor leakage properties to the adhesive, and sufficient adhesive strength cannot be obtained. For this reason, the joint strength is improved by interposing a brass bush 2 that is easy to press-fit and has good leakage against adhesive.
［考案が解決しようとする課題］
しかし、上記のような振動発生装置においては
振動子３を回転軸１Ａに固定するに際し、
回転軸１Ａにブツシユ２を圧入固定し、
ブツシユ２に接着剤を塗付して振動子３を取
り付ける。[Problem to be solved by the invention] However, in the vibration generator as described above, when fixing the vibrator 3 to the rotating shaft 1A, the bushing 2 is press-fitted and fixed to the rotating shaft 1A, and the bushing 2 is coated with adhesive. and attach the vibrator 3.
という２段階の手間を要するため、生産性が低く
コストがかかるという問題があつた。Since this requires two steps of effort, there was a problem of low productivity and high costs.
また、振動子３と回転軸１Ａとの接着界面に汚
れが付着し、振動子３の接着不良により充分な接
合強度が得られないといつた不良品の発生がしば
しば起るため、歩留りが極めて悪いという欠点も
あつた。 In addition, dirt adheres to the adhesive interface between the vibrator 3 and the rotating shaft 1A, which often results in defective products in which sufficient bonding strength cannot be obtained due to poor adhesion of the vibrator 3, resulting in extremely low yields. It also had some drawbacks.
そこで、本考案者等は、上記欠点を解決すべく
鋭意研究を重ねた結果、振動子を、一般にはこの
種の強い振動を受ける部材においては上述した接
着よりも接合強度が低いと考えられていた加締め
によつてモータの回転軸に固定すると、接合界面
の汚れの影響をほとんど受けない結果、かえつて
上記接着よりも大きな接合強度が得られるうえ
に、さらに、回転軸に対して振動子の重心位置の
反対側に位置する外周部を上記回転軸に加締める
と、他の部分を加締めた場合に比較して長期間の
使用においてもその接合強度が低下しない、とい
う知見を得るに至つた。 Therefore, the inventors of the present invention have conducted intensive research to resolve the above-mentioned drawbacks, and have found that the bonding strength of the vibrator is generally considered to be lower than that of the above-mentioned adhesive for components that are subjected to strong vibrations of this type. If the oscillator is fixed to the rotating shaft of the motor by caulking, it will be almost unaffected by dirt on the bonding interface, resulting in greater bonding strength than the adhesive described above. It was discovered that if the outer peripheral part located on the opposite side of the center of gravity is crimped to the rotating shaft, the joint strength will not decrease even after long-term use compared to when other parts are crimped. I've reached it.
［課題を解決するための手段］
本考案は、上記知見に基づいてなされたもの
で、振動子を、その偏心位置に形成された取付孔
にモータの回転軸を貫入するとともに、上記回転
軸に対してその重心位置の反対側に位置する外周
部を上記回転軸に加締めることによつて上記回転
軸に固定したものである。[Means for Solving the Problems] The present invention has been made based on the above findings, and includes inserting a rotating shaft of a motor into a mounting hole formed at an eccentric position of the vibrator, and attaching the vibrator to the rotating shaft. On the other hand, the outer circumferential portion located on the opposite side of the center of gravity is fixed to the rotating shaft by crimping the rotating shaft.
［作用］
上記構成の小型無線呼出機の振動発生装置によ
れば、組み立て作業が極めて容易であり、ブツシ
ユや接着剤を使用しないためコストが低減する。[Function] According to the vibration generator for a small radio paging machine having the above configuration, assembly work is extremely easy, and costs are reduced because no bushings or adhesives are used.
また、振動子と回転軸との接合強度が接合界面
の汚れの影響をほとんど受けないので、充分な接
合強度が得られ接合不良の発生頻度が小さい。さ
らに、回転軸に対して振動子の重心位置の反対側
に位置する外周部を上記回転軸に加締めているか
ら、他の部分を加締めた場合に比較して長期間の
使用においてもその接合強度が低下しない。 Furthermore, since the bonding strength between the vibrator and the rotating shaft is hardly affected by dirt at the bonding interface, sufficient bonding strength can be obtained and the frequency of occurrence of bonding defects is low. Furthermore, since the outer periphery located on the opposite side of the vibrator's center of gravity with respect to the rotation axis is crimped to the rotation axis, it will not hold up even during long-term use compared to the case where other parts are crimped. Bonding strength does not decrease.
［実施例］
第１図及び第２図は、本考案に係わる小型無線
呼出機の振動発生装置の一例を示す縦断面図およ
び正面図である。[Example] FIGS. 1 and 2 are a longitudinal sectional view and a front view showing an example of a vibration generator for a small radio paging machine according to the present invention.
図中符号１０は扇板状の振動子であり、この振
動子１０は、Ｗ−Ni−Fe系、Ｗ−Ni−Cu系、Ｗ
−Mo−Ni−Fe系等の17〜18.5g／cm3程度の比重
を有する超重合金材料を、展性を付与する焼結方
法により成形したものである。この成形方法の一
例を以下に挙げる。 The reference numeral 10 in the figure is a fan-shaped resonator, and this resonator 10 is a W-Ni-Fe system, a W-Ni-Cu system, a W-Ni-Cu system, a W-Ni-Cu system, a W-Ni-Cu system, a
A super-heavy alloy material such as -Mo-Ni-Fe having a specific gravity of about 17 to 18.5 g/cm 3 is molded by a sintering method that imparts malleability. An example of this molding method is given below.
タングステン粉末89〜97wt％、ニッケル粉末
1.5〜6wg％、鉄粉末0.5〜4wt％、およびモリブ
デン粉末２〜5wt％からなる組成の混合粉末を１
〜4ton／cm2で扇板状に圧粉し、この圧粉体を０〜
−60℃の露点の水素気流またはアンモニア分解ガ
ス中で液相焼結する。さらに、真空、中性、還元
性のいずれかの雰囲気中において700〜1470℃に
加熱後、少なくとも300℃まで40℃／min.の冷却
速度で急冷する熱処理を施す。以上の処理によれ
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る。なお、以上挙げた各因子
が前記数値の範囲を外れると、振動子１０の延性
が低下し、脆くなつて加締める際に割れるおそれ
が生じる。 Tungsten powder 89-97wt%, nickel powder
A mixed powder with a composition consisting of 1.5 to 6 wg%, iron powder 0.5 to 4 wt%, and molybdenum powder 2 to 5 wt% is
The powder is compacted into a fan plate shape at ~4ton/ cm2 , and the compacted powder is
Liquid phase sintering in a hydrogen stream or ammonia decomposition gas with a dew point of -60°C. Further, a heat treatment is performed in which the material is heated to 700 to 1470°C in a vacuum, neutral, or reducing atmosphere, and then rapidly cooled to at least 300°C at a cooling rate of 40°C/min. According to the above treatment, it is possible to impart much higher malleability than general alloys of the same type. It should be noted that if each of the above-mentioned factors is out of the range of the above numerical values, the ductility of the vibrator 10 decreases, and there is a risk that the vibrator 10 will become brittle and crack during crimping.
前記振動子１０の扇の中心部には、モータ１の
回転軸１Ａと略等しい直径の取付孔１０Ａが形成
されている。そして、この振動子１０は、取付孔
１０Ａに回転軸１Ａが挿入されたうえ、その外周
部（図中Ｐ参照）がポンチ等によつて加締められ
ることにより回転軸１Ａに固定されている。すな
わち、振動子１０は、回転軸１Ａに対してその重
心位置の反対側に位置する外周部が加締められる
ことにより回転軸１Ａに固定されている。 At the center of the fan of the vibrator 10, a mounting hole 10A having a diameter substantially equal to that of the rotating shaft 1A of the motor 1 is formed. The vibrator 10 is fixed to the rotating shaft 1A by inserting the rotating shaft 1A into the mounting hole 10A and tightening the outer peripheral portion (see P in the figure) with a punch or the like. That is, the vibrator 10 is fixed to the rotary shaft 1A by crimping the outer peripheral portion of the vibrator 10 located on the opposite side of the center of gravity of the vibrator 10 to the rotary shaft 1A.
以上の構成からなる振動発生装置にあつては、
振動子１０をモータ１の回転軸１Ａに加締めるこ
とによつて固定してので、組み立て作業が極めて
容易であり、ブツシユ接着剤を使用しない分、コ
ストを低減することができる。また、接着剤を使
用して固定する構成に比べ、組み立て作業を自動
化しやすいという利点もある。 In the vibration generator having the above configuration,
Since the vibrator 10 is fixed by caulking to the rotating shaft 1A of the motor 1, assembly work is extremely easy, and costs can be reduced by not using bushing adhesive. It also has the advantage that assembly work can be automated more easily than in a structure that uses adhesive to fix the structure.
さらに、この装置においては、振動子１０と回
転軸１Ａとの接合強度が接合界面の汚れの影響を
ほとんど受けないので、接合不良の発生頻度が小
さく、歩留りの向上が図れる。 Furthermore, in this device, the bonding strength between the vibrator 10 and the rotating shaft 1A is hardly affected by contamination at the bonding interface, so that bonding defects occur less frequently and the yield can be improved.
加えて、回転軸１Ａに対して振動子１０の重心
位置の反対側に位置する外周部Ｐを回転軸１Ａに
加締めているから、他の部分を加締めた場合に比
較して長期間の使用においてもその接合強度が低
下しない。すなわち、第５図に示すように、モー
タの回転軸１Ａに対して振動子１０の重心位置Ｇ
の反対側に位置する外周部Ｐを回転軸１Ａに加締
めると、取付孔１０Ａは加締め方向に潰れる一方
で、これと直交する同図中左右方向に幾分内径が
広がる。この状態で振動子１０を回転させると、
振動子１０には、図中矢印で示す方向に遠心力Ｆ
が作用する。すなわち、上記遠心力Ｆは、取付孔
１０Ａの縮径方向に作用することになる。したが
つて、長期間にわたつて使用していても、振動子
１０と回転軸１Ａとの間にガタを生じることがな
い。 In addition, since the outer peripheral part P located on the opposite side of the center of gravity of the vibrator 10 with respect to the rotating shaft 1A is crimped to the rotating shaft 1A, the long-term The bonding strength does not decrease during use. That is, as shown in FIG. 5, the center of gravity position G of the vibrator 10 is
When the outer circumferential portion P located on the opposite side is crimped onto the rotation shaft 1A, the mounting hole 10A collapses in the crimping direction, while the inner diameter expands somewhat in the left-right direction in the figure perpendicular to this. When the vibrator 10 is rotated in this state,
A centrifugal force F is applied to the vibrator 10 in the direction shown by the arrow in the figure.
acts. That is, the centrifugal force F acts in the direction of diameter reduction of the attachment hole 10A. Therefore, even if the vibrator is used for a long period of time, no play will occur between the vibrator 10 and the rotating shaft 1A.
これに対して、第６図に示すように、仮に振動
子１０′をモータの回転軸１Ａと重心位置G′とを
結ぶ線と直交する方向から加締めると、取付孔１
０A′は加締め方向に潰れる一方で、これと直交
する同図中上下方向に幾分内径が広がる。そし
て、この状態で振動子１０′を回転させると振動
子１０′には、図中矢印で示す方向に遠心力F′が
作用する。ところが、上記振動子１０′の取付孔
１０A′は、上述したように第６図中上下方向、
すなわち遠心力F′の作用方向に拡径しているか
ら、使用に伴い経時的に力F′の作用方向に回転軸
１Ａと取付孔１０Ａとがガタを生じて使用に耐え
得なくなつてしまう。 On the other hand, as shown in FIG. 6, if the vibrator 10' is tightened from the direction perpendicular to the line connecting the motor's rotating shaft 1A and the center of gravity G', the mounting hole 1
While 0A' collapses in the crimping direction, its inner diameter expands somewhat in the vertical direction in the figure, which is perpendicular to this. When the vibrator 10' is rotated in this state, a centrifugal force F' acts on the vibrator 10' in the direction indicated by the arrow in the figure. However, as described above, the mounting hole 10A' of the vibrator 10' is located in the vertical direction in FIG.
In other words, since the diameter is expanded in the direction in which the centrifugal force F' acts, over time the rotating shaft 1A and the mounting hole 10A become loose in the direction in which the force F' acts, making it unusable. .
したがつて、加締め位置である上記外周部Ｐと
しては、加締めた際に振動子１０の取付孔１０Ａ
が遠心力Ｆの作用方向に縮径されるような位置、
すなわちモータの回転軸１Ａに対して振動子１０
の重心位置Ｇの反対側に位置する外周部でなけれ
ばならない。このような外周部Ｐにおいて振動子
１０を加締めれば、長期間の使用においても充分
な接合強度を保持し続けることができる。 Therefore, the outer circumference P, which is the crimped position, is located at the mounting hole 10A of the vibrator 10 when crimped.
a position where the diameter is reduced in the direction of action of centrifugal force F,
In other words, the vibrator 10 is
The outer periphery must be located on the opposite side of the center of gravity G. By tightening the vibrator 10 at such an outer peripheral portion P, sufficient bonding strength can be maintained even during long-term use.
なお、本考案に使用される振動子は図示の形状
のみに限られず、種々の変形が可能であることは
勿論である。 Note that the vibrator used in the present invention is not limited to the shape shown in the drawings, and of course can be modified in various ways.
［考案の効果］
以上説明したように、本考案の小型無線呼出機
の振動発生装置は、振動子を、その偏心位置に形
成された取付孔にモータの回転軸を貫入するとと
もに、上記回転軸に対してその重心位置の反対側
に位置する外周部を上記回転軸に加締めることに
よつて上記回転軸に固定したので、振動子の取付
作業が極めて容易であり、コストを低減すること
ができる。また、接着剤を使用する場合のように
接合面の汚れ等の影響を受けないために、不良品
が生じにくく、製品の歩留り向上を図ることがで
きるとともに、さらに長期にわたつて高い接合強
度を保持し続けることができるといつた効果が得
られる。[Effects of the invention] As explained above, in the vibration generator for a small radio paging machine of the present invention, the rotating shaft of the motor is inserted into the mounting hole formed at the eccentric position of the vibrator, and the rotating shaft is The outer periphery located on the opposite side of the center of gravity of the transducer is fixed to the rotating shaft by crimping it to the rotating shaft, so the installation work of the vibrator is extremely easy and costs can be reduced. can. In addition, because it is not affected by contamination on the bonded surfaces as is the case when adhesives are used, it is less likely to produce defective products, improving product yields and maintaining high bonding strength over a long period of time. If you can continue to hold it, you will get the same effect.
第１図及び第２図は本考案の振動発生装置の一
実施例を示す縦断面図および正面図、第３図およ
び第４図は従来の振動発生装置の縦断面図及び正
面図、第５図および第６図はそれぞれ本考案にお
ける振動子の加締め位置を説明するための正面図
である。
１……モータ、１Ａ……回転軸、１０……振動
子、Ｐ……加締めた箇所。
1 and 2 are a vertical sectional view and a front view showing an embodiment of the vibration generator of the present invention, FIGS. 3 and 4 are a vertical sectional view and a front view of a conventional vibration generator, and FIG. FIG. 6 is a front view for explaining the crimp position of the vibrator in the present invention, respectively. 1... Motor, 1A... Rotating shaft, 10... Vibrator, P... Tightened part.
Claims (1)
高比重合金製の振動子とを具備する小型無線呼出
機の振動発生装置において、 前記振動子は、こ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貫入され
るとともに、上記回転軸に対してその重心位置の
反対側に位置する外周部が上記回転軸に加締めら
れることによつて上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出機の振動発生装置。[Claims for Utility Model Registration] A vibration generator for a small radio paging machine comprising a motor and a vibrator made of a high-density alloy that is eccentrically fixed to the rotating shaft of the motor, wherein the vibrator is located at the eccentric position. A mounting hole is formed in the mounting hole, and the rotating shaft of the motor is inserted into the mounting hole, and the outer peripheral portion of the motor located on the opposite side of the center of gravity with respect to the rotating shaft is crimped to the rotating shaft. A vibration generator for a small radio calling machine, characterized in that the vibration generator is fixed to the rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987104347U JPH0413860Y2 (en) | 1987-07-07 | 1987-07-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987104347U JPH0413860Y2 (en) | 1987-07-07 | 1987-07-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS648858U JPS648858U (en) | 1989-01-18 |
| JPH0413860Y2 true JPH0413860Y2 (en) | 1992-03-30 |
Family
ID=31335980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987104347U Expired JPH0413860Y2 (en) | 1987-07-07 | 1987-07-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0413860Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5942659B2 (en) * | 1979-09-19 | 1984-10-16 | デグッサ アクチェン ゲゼルシャフト | Hydroxylation method of cyclic olefin having 1 or 2 double bonds |
| JPS61250123A (en) * | 1985-04-26 | 1986-11-07 | アライド・コ−ポレ−シヨン | Compressed article prepared from heat-treated amorphous lumpy parts |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5942659U (en) * | 1982-09-10 | 1984-03-19 | 昭和マネ−ジメント株式会社 | radio call receiving device |
-
1987
- 1987-07-07 JP JP1987104347U patent/JPH0413860Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5942659B2 (en) * | 1979-09-19 | 1984-10-16 | デグッサ アクチェン ゲゼルシャフト | Hydroxylation method of cyclic olefin having 1 or 2 double bonds |
| JPS61250123A (en) * | 1985-04-26 | 1986-11-07 | アライド・コ−ポレ−シヨン | Compressed article prepared from heat-treated amorphous lumpy parts |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS648858U (en) | 1989-01-18 |
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