JPS6283528A - Vibrationproof leg - Google Patents
Vibrationproof legInfo
- Publication number
- JPS6283528A JPS6283528A JP22443685A JP22443685A JPS6283528A JP S6283528 A JPS6283528 A JP S6283528A JP 22443685 A JP22443685 A JP 22443685A JP 22443685 A JP22443685 A JP 22443685A JP S6283528 A JPS6283528 A JP S6283528A
- Authority
- JP
- Japan
- Prior art keywords
- vibration
- movable plate
- isolating
- vibrationproof
- foot
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は防振足に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to anti-vibration feet.
に、防振は単一のスプリングまたはゴム等の弾性体で行
ってお９、共振状態を防止するためのバネ定数のコント
ロール機能は有していなかった。In addition, vibration isolation was performed using a single spring or an elastic body such as rubber,9 and there was no function to control the spring constant to prevent resonance.
上述した従来の防振足は共振状態を避ける之めのバネ常
数のコントロール機構を有していないので、防振足取付
ベースが広範囲の周波数で加振された時、被防振物は防
振足の持っている共振周波数で共振状態に置かれる欠点
があった。The conventional anti-vibration foot described above does not have a spring constant control mechanism to avoid resonance, so when the anti-vibration foot mounting base is vibrated in a wide range of frequencies, the object to be vibration-isolated is It had the disadvantage that it was placed in a resonance state due to the resonant frequency of the legs.
本発明の防振足は被防振物取付部と防振足取付ベースの
間にコイルバネを２ヶ直列に配置し、２個のコイルバネ
の接合部に可動プレート置す、被防振物取付部と可動プ
レートの相対変位がある値以上になった時に被防振物取
付部と可動プレートを固定するための機構を有している
。The vibration isolating foot of the present invention has two coil springs arranged in series between the vibration isolating object mounting part and the vibration isolating foot mounting base, and a movable plate is placed at the joint of the two coil springs. It has a mechanism for fixing the vibration-isolating object attachment part and the movable plate when the relative displacement of the movable plate and the movable plate exceeds a certain value.
また、可動プレートと防振足取付ベースの相対変位があ
る値以上になった時に、被防振物取付部と可動プｖ−ト
を固定している機構を解除するための機構を有している
。In addition, when the relative displacement between the movable plate and the anti-vibration foot mounting base exceeds a certain value, it has a mechanism for releasing the mechanism that fixes the anti-vibration object mounting part and the movable plate. There is.
次に本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
第１図は本発明の一実施例の縦断面図である。FIG. 1 is a longitudinal sectional view of an embodiment of the present invention.
被防振物取付部１と防振足取付ベース２０間に可動グレ
ート３を介してコイルバネ４とコイルバネ５を直列に配
置しである。A coil spring 4 and a coil spring 5 are arranged in series between a vibration-isolating object mounting part 1 and a vibration-isolating foot mounting base 20 via a movable grate 3.
可動プレート３の内部にはスプリング６で内側に押され
た固定具７が取付けており、被防振物取付部１と可動グ
レート３の相対変位が振動で大きくなっ九時固定具７が
被防振物取付部１に設けられた固定用穴に入り可動プレ
ート３は被防振物取付部１に固定される。A fixture 7 that is pushed inward by a spring 6 is installed inside the movable plate 3, and when the relative displacement between the vibration-isolating object attachment part 1 and the movable grate 3 becomes large due to vibration, the nine o'clock fixture 7 is protected. The movable plate 3 enters a fixing hole provided in the vibration-isolating object mounting part 1 and is fixed to the vibration-isolating object mounting part 1.
ま九、固定金具７と防振足取付ペース２には可動プレー
ト３と防振足取付ベース２の間隔が振動で狭くなった時
に固定金具３を外側に拡げ、被防振物取付部１と可動プ
Ｖ−１−３の固定を解除する九めテーバ部を備えている
。第４図は本実施例の振動特性図でｆ、は可動プＶ−ト
３が固定されていない時の共振周波数＋７’！は可動プ
レート３が固定された時の共振周波数を示す。(9) When the distance between the movable plate 3 and the anti-vibration foot mounting base 2 becomes narrow due to vibration, the fixing metal fittings 7 and the anti-vibration foot mounting base 2 can be expanded outwardly, and It is provided with a ninth taper portion for releasing the fixation of the movable plate V-1-3. FIG. 4 is a vibration characteristic diagram of this embodiment, and f is the resonance frequency +7' when the movable plate 3 is not fixed. indicates the resonance frequency when the movable plate 3 is fixed.
加振周波数を低周波数から高周波数に掃引した場合の振
動特性は第４図のａ−＋ｂ→（−＋ｄ→ｅ→ｆの順にま
た高周波数から低周波数に掃引した場合はｇ−＋ｈ−ｈ
ｉ −１−６−＊ Ｊ −＊ Ｋ −＊ Ｃ−＊ ｌ
の順に変化させることができるため、被防振物は共振を
避けることができる。The vibration characteristics when the excitation frequency is swept from low frequency to high frequency are shown in Fig. 4 in the order of a-+b → (-+d → e → f, and when it is swept from high frequency to low frequency, it is g-+h-h.
i -1-6-* J -* K -* C-* l
Since the vibration can be changed in the order of , the object to be vibration-isolated can avoid resonance.
以上説明したように本）Ａ明は、２ケ使用しているコイ
ルバネの内の１ケを振動による変位が大きくなった時に
固定もしくは解除し、被防振物を含めた防振足の系の共
振周波数を変更することにより第４図に示す様に全ての
周波数において、共振状態を回避できる効果がある。As explained above, A-Mei fixed or released one of the two coil springs used when the displacement due to vibration became large, and fixed or released the system of the anti-vibration foot including the object to be anti-vibration. By changing the resonant frequency, it is possible to avoid the resonant state at all frequencies as shown in FIG. 4.
第１図は本発明の防振足の縦断面図、第２図。
第３図は従来の防振足の縦断面図、第４図は本考案の振
動特性図である。
１・・・・・・被防振物取付部、２・・・・・・防振足
取付ペース、３・・・−・・可１１１Ｊ’ｊＶ−）、
４・・・・・・コイルバネ、５・・・・・・コイルバネ
、６・・・・・・スプリング、７・・・・・・固定具、
８・・・・・・カバー、９・・・−・・弾性体。
代理人 弁理士 内 原 晋
ｊｔ ｆ２
司 ５友皺
第４ワFIG. 1 is a longitudinal cross-sectional view of the anti-vibration foot of the present invention, and FIG. FIG. 3 is a longitudinal cross-sectional view of a conventional anti-vibration foot, and FIG. 4 is a vibration characteristic diagram of the present invention. 1... Anti-vibration object attachment part, 2... Anti-vibration foot attachment pace, 3...-- Possible 111J'jV-),
4... Coil spring, 5... Coil spring, 6... Spring, 7... Fixture,
8...Cover, 9...--Elastic body. Agent Patent Attorney Susumu Uchihara Jt f2 Tsukasa 5 Tomoji 4th Wa
Claims (1)
れた２個のコイルバネと、この２個のコイルバネの接合
部に置かれた可動プレートと、前記被防振物取付部と可
動プレートの相対変位が一定量以上になった時、前記被
防振物取付部と前記可動プレートを固定する機構と、前
記可動プレートと防振足取付ベースの相対変位が一定量
以上になった時に前記被防振物取付部と可動プレートを
固定するための機構を解除する機構とを有することを特
徴とする共振防止用防振足。Two coil springs arranged in series between the vibration-isolating object mounting part and the vibration-isolating foot mounting base, a movable plate placed at the joint of these two coil springs, and the vibration-isolating object mounting part. When the relative displacement of the movable plate exceeds a certain amount, the relative displacement between the mechanism for fixing the vibration-isolating object attachment part and the movable plate, and the movable plate and the vibration-isolating foot mounting base exceeds a certain amount. A vibration-isolating foot for preventing resonance, characterized in that it has a mechanism for releasing a mechanism for fixing the vibration-isolated object attachment part and the movable plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22443685A JPS6283528A (en) | 1985-10-07 | 1985-10-07 | Vibrationproof leg |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22443685A JPS6283528A (en) | 1985-10-07 | 1985-10-07 | Vibrationproof leg |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6283528A true JPS6283528A (en) | 1987-04-17 |
Family
ID=16813743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22443685A Pending JPS6283528A (en) | 1985-10-07 | 1985-10-07 | Vibrationproof leg |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6283528A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011196441A (en) * | 2010-03-18 | 2011-10-06 | Nhk Spring Co Ltd | Vibration control device |
-
1985
- 1985-10-07 JP JP22443685A patent/JPS6283528A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011196441A (en) * | 2010-03-18 | 2011-10-06 | Nhk Spring Co Ltd | Vibration control device |
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