JPH11344078A - Vibration control device - Google Patents
Vibration control deviceInfo
- Publication number
- JPH11344078A JPH11344078A JP15331098A JP15331098A JPH11344078A JP H11344078 A JPH11344078 A JP H11344078A JP 15331098 A JP15331098 A JP 15331098A JP 15331098 A JP15331098 A JP 15331098A JP H11344078 A JPH11344078 A JP H11344078A
- Authority
- JP
- Japan
- Prior art keywords
- support spring
- spring portion
- attached
- rubber
- source side
- 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
Landscapes
- Vibration Prevention Devices (AREA)
- Springs (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、産業機械、鉄
道、自動車などに用いられ、支持荷重条件の変動差の大
きな個所に使用される防振装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-vibration device which is used in industrial machines, railways, automobiles and the like, and is used in places where there is a large variation in the supporting load condition.
【０００２】[0002]
【従来の技術】従来の例えば貨車やトラック等の荷台を
防振支持するものとして、図６に示すような防振装置が
知られている。これは、トラックの荷台を支持する場
合、一方の金具１００にトラックの車体を取付け、他方
の金具１０１に荷台を取付け、これら金具１００，１０
１間にゴム状弾性体１０２を設け、ゴム状弾性体１０２
の中心は一方の金具１００側から他方の金具１０１側へ
窪み、この窪み１０３の周囲のゴム状弾性体で支持バネ
部１０４を形成してある。2. Description of the Related Art Conventionally, a vibration isolator as shown in FIG. 6 has been known as a conventional type for supporting a carrier such as a wagon or a truck. That is, when supporting the truck bed, the truck body is attached to one of the brackets 100, and the truck is attached to the other bracket 101.
A rubber-like elastic body 102 is provided between
Is recessed from one metal fitting 100 side to the other metal fitting 101 side, and a supporting spring portion 104 is formed by a rubber-like elastic body around the hollow 103.
【０００３】[0003]
【発明が解決しようとする課題】防振支持した際の支持
系の固有値は、次式で表わされる。 Ｍ：支持重量 Ｋ：バネ定数 ある一定の防振効果を得たい場合、上式のｆを一定値
（発生する強制振動数Ｎの７０％以下）にすればよいこ
とは判明している。このとき、支持重量Ｍが決まれば、
必要なバネ定数Ｋが決まる。ここで、耐久性を考え、最
大荷重を想定してＫを決定すると、荷重が軽くなった場
合（Ｍが小さくなった場合）、ｆが大きくなり、防振効
果が得られない。反対に、軽荷重時に合わせてバネ定数
Ｋを決定すると、大荷重時の支持バネ部１０４の撓みが
大きくなり、耐久性が著しく低下してしまう。従来の防
振装置は、支持バネ部１０４が１つであり、そのためバ
ネ定数Ｋも１つとなり、軽荷重時及び大荷重時の双方に
対応させることはできなかった。The characteristic value of the support system when the vibration is supported is represented by the following equation. M: supporting weight K: spring constant It is clear that when it is desired to obtain a certain vibration damping effect, f in the above equation should be set to a certain value (70% or less of the generated forced frequency N). At this time, if the supporting weight M is determined,
The required spring constant K is determined. Here, when K is determined in consideration of the durability and the maximum load is assumed, when the load becomes lighter (when M becomes smaller), f becomes larger, and the vibration damping effect cannot be obtained. Conversely, if the spring constant K is determined according to a light load, the bending of the support spring portion 104 under a large load increases, and the durability is significantly reduced. The conventional anti-vibration device has one support spring portion 104, and therefore has one spring constant K, and cannot cope with both a light load and a large load.
【０００４】そこで、この発明は、軽荷重時でも大荷重
時でも対応できる防振装置を提供することを目的とす
る。Accordingly, an object of the present invention is to provide an anti-vibration device which can cope with a light load or a large load.
【０００５】[0005]
【課題を解決するための手段】上述の目的を達成するた
め、この発明は、振動源側と被振動源側とに夫々取付く
金具間にゴム状弾性体を設け、このゴム状弾性体を第１
及び第２の支持バネ部に区分し、第１の支持バネ部を両
金具間に取付け、第２の支持バネ部を一方の金具にのみ
取付け、大荷重作用時に第２の支持バネ部の金具に取付
いていない面が振動源側と被振動源側のいずれか一方の
部材又は金具に当接するように構成したものである。In order to achieve the above-mentioned object, the present invention provides a rubber-like elastic body between metal fittings to be attached to a vibration source side and a vibration-source side, respectively. First
And a second support spring portion, the first support spring portion is mounted between the two brackets, the second support spring portion is mounted on only one of the brackets, and the bracket of the second support spring portion is operated when a large load is applied. Is attached to one of the members or metal fittings on the vibration source side and the vibration source side.
【０００６】[0006]
【発明の実施の形態】以下に、この発明の好適な実施例
について図面を参照にして説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings.
【０００７】図１に示す実施例において振動源側と被振
動源側とに夫々取付く金具１，２間にゴム状弾性体３を
設け、このゴム状弾性体３の中心が一方の金具２側から
他方の金具１側へ窪んで窪み４を形成している。この窪
み４の周囲のゴム状弾性体で第１の支持バネ部５を形成
し、窪み４の径を従来よりも拡げてこの窪み４内に前記
支持バネ部５の高さよりも低い第２の支持バネ部６を形
成してある。この第２の支持バネ部６にも一方の金具７
が設けてある。支持バネ部５とこの第２の支持バネ部６
との間の深い窪み４Ａが従来の窪みと同等の機能を果た
す。In the embodiment shown in FIG. 1, a rubber-like elastic body 3 is provided between metal fittings 1 and 2 attached to the vibration source side and the vibration source side, respectively, and the center of the rubber-like elastic body 3 is one metal fitting 2. A recess 4 is formed from the side toward the other metal fitting 1 side. The first support spring portion 5 is formed of the rubber-like elastic body around the depression 4, and the diameter of the depression 4 is made larger than before so that the second support spring portion 5 is lower in the depression 4 than the height of the support spring portion 5. A support spring 6 is formed. The second support spring portion 6 also has one metal fitting 7.
Is provided. The support spring portion 5 and the second support spring portion 6
The deep depression 4A between them functions similarly to the conventional depression.
【０００８】図２は、例えば被振動源側の部材８に他方
の金具２を取付けた状態を示し、この部材８は支持バネ
部５に囲まれた空間に嵌まり込み、金具７との隙間Ｈを
設けてある。他方の金具１は例えばトラックの荷台に取
付く。トラックの荷台に重量物を積載しない状態におい
ては、隙間Ｈの範囲内で主として支持バネ部５が振動を
吸収している。支持バネ部５のバネ定数をＫ1とする
と、 式中Ｍ1は軽荷重を示す。FIG. 2 shows, for example, a state in which the other metal fitting 2 is attached to a member 8 on the side of the source to be vibrated, and this member 8 fits into a space surrounded by the support spring portion 5 and a gap with the metal fitting 7. H is provided. The other fitting 1 is attached to, for example, a truck bed. In a state where no heavy object is loaded on the truck bed, the support spring portion 5 mainly absorbs vibration in the range of the gap H. When the spring constant of the supporting spring part 5 and K 1, Wherein M 1 indicates a light load.
【０００９】図３に示すように金具１の上方から大荷重
が作用するとき、支持系の固有値ｆは次の式で表わされ
る。 ここで、Ｍ2は大荷重を示す。この状態においては第２
の支持バネ部６も作用して合計バネ定数は、Ｋ1＋Ｋ2に
アップする。この場合、増加した荷重Ｍ2に合わせて設
計することにより防振効果を維持することができる。As shown in FIG. 3, when a large load acts from above the metal fitting 1, the characteristic value f of the support system is expressed by the following equation. Here, M 2 represents a large load. In this state, the second
The total spring constant is increased to K 1 + K 2 by the action of the support spring portion 6 of FIG. In this case, it is possible to maintain the vibration damping effect by designed for load M 2 was increased.
【００１０】上述した実施例では２つの支持バネ部を設
けたが、３以上の支持バネ部を設けることもできる。ま
た、部材８と第２の支持バネ部６の金具７との隙間Ｈの
間隔は増加する荷重に合わせて変更することができる。In the above embodiment, two support springs are provided, but three or more support springs may be provided. Further, the interval of the gap H between the member 8 and the metal fitting 7 of the second support spring portion 6 can be changed according to the increasing load.
【００１１】図４は他の実施例を示し、金具１，２に第
１の支持バネ部５（ゴム状弾性体３の外周側）を取付
け、第２の支持バネ部６（ゴム状弾性体の中心側）を金
具１にのみ取付け、両バネ部５，６の間に窪み４Ａを形
成したものである。金具２は振動源側又は被振動源側の
部材に取付き、大荷重作用時に第２の支持バネ部６の図
面上下面が金具２の取付いた側の部材に当接するように
なっている。この第２の支持バネ部６の上記部材に当接
する下面は無荷重時ないし軽荷重時には上記部材との間
に図２に示すと同様の隙間Ｈが形成される。FIG. 4 shows another embodiment, in which a first support spring portion 5 (outer side of the rubber-like elastic body 3) is attached to the metal fittings 1 and 2, and a second support spring portion 6 (the rubber-like elastic body 3) is attached. (Center side) is attached to the metal fitting 1 only, and a depression 4A is formed between the spring portions 5 and 6. The metal fitting 2 is attached to a member on the vibration source side or the vibration source side, and when a large load is applied, the upper and lower surfaces of the second support spring portion 6 in the drawing come into contact with the member on the side where the metal fitting 2 is attached. The lower surface of the second support spring portion 6 which comes into contact with the above-described member has a gap H as shown in FIG.
【００１２】図５はさらに他の実施例を示すものであ
り、第１の支持バネ部５をゴム状弾性体３の中心側に設
け、この第１の支持バネ部５の外周に第２の支持バネ部
６を設けてある。また、第１の支持バネ部５の下面の中
心には窪み４を形成してある。この実施例でも、大荷重
作用時に第２の支持バネ部６の下面が金具２に当接す
る。FIG. 5 shows still another embodiment, in which a first support spring portion 5 is provided on the center side of a rubber-like elastic body 3 and a second support spring portion 5 is provided on the outer periphery of the first support spring portion 5. A support spring portion 6 is provided. A depression 4 is formed at the center of the lower surface of the first support spring portion 5. Also in this embodiment, the lower surface of the second support spring portion 6 contacts the metal fitting 2 when a large load is applied.
【００１３】[0013]
【発明の効果】以上説明したように、この発明によれ
ば、振動源側と被振動源側とに夫々取付く金具間にゴム
状弾性体を設け、このゴム状弾性体を第１及び第２の支
持バネ部に区分し、第１の支持バネ部を両金具間に取付
け、第２の支持バネ部を一方の金具にのみ取付け、大荷
重作用時に第２の支持バネ部の金具に取付いていない面
が振動源側と被振動源側のいずれか一方の部材又は金具
に当接するように構成したので、軽荷重時でも大荷重時
でも対応できるとともに、耐久性にも優れたものとな
る。また構造も簡単であり、低コストで製造することが
できる。As described above, according to the present invention, the rubber-like elastic body is provided between the metal fittings to be attached to the vibration source side and the vibration-source side, respectively, and the rubber-like elastic bodies are first and second. The first support spring portion is mounted between the two brackets, the second support spring portion is mounted on only one of the brackets, and mounted on the second support spring portion when a large load is applied. The non-contact surface is configured to contact one of the vibration source side and the vibration source side member or metal fitting, so that it can cope with both light and large loads and has excellent durability. . Further, the structure is simple, and it can be manufactured at low cost.
【図１】この発明の好適な実施例を示す断面図。FIG. 1 is a sectional view showing a preferred embodiment of the present invention.
【図２】一方の金具に被振動源側の部材を取付けた状態
を示す断面図。FIG. 2 is a cross-sectional view showing a state in which a member on a vibration source side is attached to one metal fitting.
【図３】大荷重が作用した状態の断面図。FIG. 3 is a cross-sectional view in a state where a large load is applied.
【図４】他の実施例を示す断面図。FIG. 4 is a sectional view showing another embodiment.
【図５】さらに他の実施例を示す断面図。FIG. 5 is a sectional view showing still another embodiment.
【図６】従来例を示す断面図。FIG. 6 is a sectional view showing a conventional example.
１，２，７ 金具 ３ ゴム状弾性体 ５ 第１の支持バネ部 ６ 第２の支持バネ部 1, 2, 7 metal fittings 3 rubber-like elastic body 5 first support spring part 6 second support spring part
Claims (1)
具間にゴム状弾性体を設け、 このゴム状弾性体を第１及び第２の支持バネ部に区分
し、 第１の支持バネ部を両金具間に取付け、 第２の支持バネ部を一方の金具にのみ取付け、 大荷重作用時に第２の支持バネ部の金具に取付いていな
い面が振動源側と被振動源側のいずれか一方の部材又は
金具に当接するように構成したことを特徴とする防振装
置。1. A rubber-like elastic body is provided between metal fittings to be attached to a vibration source side and a vibration source side, respectively, and the rubber-like elastic body is divided into a first and a second support spring portion. The support spring portion is attached between the two brackets, the second support spring portion is attached only to one of the brackets, and the surface of the second support spring portion that is not attached to the bracket when a large load is applied is the vibration source side and the vibration source side. Characterized in that it is configured to contact one of the members or the metal fittings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15331098A JPH11344078A (en) | 1998-06-02 | 1998-06-02 | Vibration control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15331098A JPH11344078A (en) | 1998-06-02 | 1998-06-02 | Vibration control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11344078A true JPH11344078A (en) | 1999-12-14 |
Family
ID=15559700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15331098A Pending JPH11344078A (en) | 1998-06-02 | 1998-06-02 | Vibration control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11344078A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018096513A (en) * | 2016-12-16 | 2018-06-21 | 清水建設株式会社 | Vibration-isolating mechanism |
-
1998
- 1998-06-02 JP JP15331098A patent/JPH11344078A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018096513A (en) * | 2016-12-16 | 2018-06-21 | 清水建設株式会社 | Vibration-isolating mechanism |
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