JP2684999B2 - Electronic device anti-vibration - Google Patents
Electronic device anti-vibrationInfo
- Publication number
- JP2684999B2 JP2684999B2 JP6236554A JP23655494A JP2684999B2 JP 2684999 B2 JP2684999 B2 JP 2684999B2 JP 6236554 A JP6236554 A JP 6236554A JP 23655494 A JP23655494 A JP 23655494A JP 2684999 B2 JP2684999 B2 JP 2684999B2
- Authority
- JP
- Japan
- Prior art keywords
- vibration
- spring
- electronic device
- vibration isolator
- fixing flange
- 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
- Vibration Prevention Devices (AREA)
- Mounting Components In General For Electric Apparatus (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は電子機器の防振器に関
し、特に移動装置搭載電子機器の防振構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration isolator for electronic equipment, and more particularly to a vibration isolation structure for electronic equipment equipped with a mobile device.
【０００２】[0002]
【従来の技術】従来の防振構造は図４に示すように複数
の防振器２を配置した取付台１と複数の防振器２に支持
された電子機器３から構成されている。防振器２はその
内部がゴムまたはバネ等の弾性材料から形成され作用す
る外力に対し弾性材料の弾性率に応じ変形し電子機器３
に作用する振動を減衰する機能を有している。2. Description of the Related Art As shown in FIG. 4, a conventional anti-vibration structure comprises a mount 1 on which a plurality of anti-vibrators 2 are arranged and an electronic device 3 supported by the plurality of anti-vibrators 2. The vibration isolator 2 is formed of an elastic material such as rubber or a spring inside, and is deformed according to the elastic modulus of the elastic material with respect to an external force that acts, and the electronic device 3
It has the function of attenuating the vibration that acts on.
【０００３】このような防振器２に支持された電子機器
３を有する防振構造では、ある周波数の振動に対し共振
し振動伝達率は数〜数十倍にもなる。In the vibration isolating structure having the electronic device 3 supported by the vibration isolator 2 as described above, it resonates with vibration of a certain frequency and the vibration transmissibility becomes several to several tens of times.
【０００４】[0004]
【発明が解決しようとする課題】この従来の電子機器の
防振器では、共振周波数において振動を吸収するために
用いたはずの防振器が逆に振動を増幅させるという問題
点があった。This conventional vibration isolator for electronic equipment has a problem that the vibration isolator, which should have been used to absorb the vibration at the resonance frequency, amplifies the vibration.
【０００５】[0005]
【課題を解決するための手段】本発明の防振器はその内
部に加振による振幅量の変化に伴いバネ定数を変化させ
共振を抑制する２重のバネを備えている。The vibration isolator according to the present invention is provided therein with a double spring that changes the spring constant in response to a change in the amplitude amount due to vibration and suppresses resonance.
【０００６】[0006]
【実施例】次に本発明について図面を参照して説明す
る。図１は本発明の防振器の一実施例の断面図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings. FIG. 1 is a sectional view of an embodiment of the vibration isolator of the present invention.
【０００７】図中防振器２は取付台１の電子機器３（図
４参照）を固定するための機器固定用フランジ２ａと、
その下の下部フランジ２ｄと、機器固定用フランジ２ａ
と下部フランジ２ｄの下板（基板）との間に配置された
第１のバネ２ｂと、機器固定用フランジ２ａがある振幅
以上下方に移動した場合にその動きを受けて可動する可
動板５と、及び可動板５と下部フランジ２ｄの下板との
間に配置された第２のバネ２ｃとを有している。In the figure, the vibration isolator 2 is a device fixing flange 2a for fixing the electronic device 3 (see FIG. 4) of the mounting base 1,
Lower flange 2d below and device fixing flange 2a
And the lower plate (substrate) of the lower flange 2d.
Amplitude with the first spring 2b and the device fixing flange 2a
When moving downward, it is possible to move by receiving the movement.
A rotation plate 5, and and a second spring 2c disposed between the movable plate 5 and the lower plate of the lower flange 2d.
【０００８】この防振器２に振動が作用すると第１のバ
ネ２ｂが電子機器３に作用し図３に示すように固有の振
動数（ω1 ）を有する周波数応答曲線４ａが生じる。作
用する振動周波数（ω）が固有振動数（ω1 ）の近くで
あれば周波数応答曲線４ａに従い伝達率が増大し振幅量
が増加する。この振幅量の増加に伴ない機器固定用フラ
ンジ２ａが第２のバネ２ｃに作用し始め、バネ定数が変
化し固有の振動数（ω2 ）を有する周波数応答曲線４ｂ
が生じる。この周波数応答曲線４ｂに従い振動周波数が
増加すると振幅は徐々に減少し機器固定用フランジ２ａ
の第２のバネ２ｃへの作用が切れ再び周波数応答曲線４
ａに戻る。したがって全体の周波数応答曲線は４ｃ，４
ｄ，４ｅとなり例えば図３の周波数ωの場合２重バネと
することにより伝達率はλからλｄに改善される。When vibration acts on the vibration isolator 2, the first panel 2b acts on the electronic device 3 to generate a frequency response curve 4a having a natural frequency (ω1) as shown in FIG. Occurs. If the acting vibration frequency (ω) is near the natural frequency (ω1), the transmissibility increases and the amplitude amount increases in accordance with the frequency response curve 4a. With this increase in the amount of amplitude, the device fixing flange 2a begins to act on the second spring 2c, the spring constant changes, and the frequency response curve 4b has a natural frequency (ω2).
Occurs. When the vibration frequency increases according to the frequency response curve 4b, the amplitude gradually decreases and the equipment fixing flange 2a
Second re frequency response curve 4 cutting action on the spring 2c of
Return to a. Therefore, the overall frequency response curve is 4c, 4
d and 4e, for example, in the case of the frequency ω in FIG. 3, a double spring is used to improve the transmissibility from λ to λd.
【０００９】[0009]
【発明の効果】以上説明したように本発明は防振器の内
部に振幅量の変化に伴いバネ定数を変化させ共振を抑制
する２重のバネを備えているので電子機器の効果的な防
振ができるという効果を有する。As described above, according to the present invention, since the vibration isolator is provided with the double spring which changes the spring constant according to the change of the amplitude and suppresses the resonance, the electronic device is effectively prevented. It has the effect of shaking.
【図１】本発明の一実施例の断面図FIG. 1 is a cross-sectional view of one embodiment of the present invention.
【図２】図１に示した一実施例のバネ変形図FIG. 2 is a spring deformation diagram of the embodiment shown in FIG.
【図３】図１，図２の周波数応答図FIG. 3 is a frequency response diagram of FIGS. 1 and 2.
【図４】従来の防振構造図[Figure 4] Conventional anti-vibration structure diagram
１ 取付台 ２ 防振器 ２ａ 機器固定用フランジ ２ｂ 第１のバネ ２ｃ 第２のバネ ２ｄ 下部フランジ ３ 電子機器 ４ａ〜４ｅ 周波数応答曲線 ５ 可動板1 Mounting Base 2 Vibration Isolator 2a Device Fixing Flange 2b First Spring 2c Second Spring 2d Lower Flange 3 Electronic Equipment 4a-4e Frequency Response Curve 5 Movable Plate
Claims (2)
と、前記機器固定用フランジと基板との間に配置されて
いる第１のバネと、前記機器固定用フランジと前記基板
との間に配置され前記機器固定用フランジがある振幅以
上前記基板方向に移動した場合にその動きを受けて可動
する可動板と、前記可動板と前記基板との間に配置され
ている第２のバネとを具備することを特徴とする電子機
器の防振器。1. A device fixing flange for fixing an electronic device, a first spring arranged between the device fixing flange and a substrate, the device fixing flange and the substrate.
And the device fixing flange that is placed between
Moves when it moves in the direction of the board above
Is disposed between the movable plate and the substrate.
A second spring which is provided, and a vibration isolator for electronic equipment.
定数より大きいことを特徴とする請求項１の電子機器の
防振器。2. The vibration isolator according to claim 1, wherein a constant of the first spring is larger than a constant of the second spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6236554A JP2684999B2 (en) | 1994-09-30 | 1994-09-30 | Electronic device anti-vibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6236554A JP2684999B2 (en) | 1994-09-30 | 1994-09-30 | Electronic device anti-vibration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08100833A JPH08100833A (en) | 1996-04-16 |
| JP2684999B2 true JP2684999B2 (en) | 1997-12-03 |
Family
ID=17002376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6236554A Expired - Lifetime JP2684999B2 (en) | 1994-09-30 | 1994-09-30 | Electronic device anti-vibration |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2684999B2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5920352B2 (en) * | 1977-04-19 | 1984-05-12 | 東洋醸造株式会社 | Parent antibiotic acreasin Dr. |
-
1994
- 1994-09-30 JP JP6236554A patent/JP2684999B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08100833A (en) | 1996-04-16 |
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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: 19970715 |