JP2001323965A - Vibration control device - Google Patents
Vibration control deviceInfo
- Publication number
- JP2001323965A JP2001323965A JP2000141259A JP2000141259A JP2001323965A JP 2001323965 A JP2001323965 A JP 2001323965A JP 2000141259 A JP2000141259 A JP 2000141259A JP 2000141259 A JP2000141259 A JP 2000141259A JP 2001323965 A JP2001323965 A JP 2001323965A
- Authority
- JP
- Japan
- Prior art keywords
- rubber elastic
- inner cylinder
- elastic body
- upper rubber
- projection
- 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
- Springs (AREA)
- Body Structure For Vehicles (AREA)
- Vibration Prevention Devices (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、所定の支持部材の
上に載置される被支持部材を弾性的に支持するにあたり
上記支持部材の上下に防振ゴムを介装したタイプの防振
装置に関し、特にピックアップ型車等の自動車の車体フ
レーム（シャシーフレーム）にボデー（キャビン）を支
持させるにあたって、その両者の連結部での騒音振動特
性の改善を目的としたいわゆるラバーインシュレータタ
イプの防振装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-vibration device of the type in which anti-vibration rubbers are interposed above and below the above-mentioned supporting member for elastically supporting a supported member placed on a predetermined supporting member. In particular, when a body (cabin) is supported on a body frame (chassis frame) of an automobile such as a pickup type vehicle, a so-called rubber insulator type vibration isolator for improving noise and vibration characteristics at a connection portion between the both. About.
【０００２】[0002]
【従来の技術と発明が解決しようとする課題】例えば図
７に示すように、はしご型等の車体フレーム１の上にボ
デー２を架装するピックアップ型車タイプの自動車で
は、両者の連結部たるａ部に図８に示すような防振装置
３が採用されている。2. Description of the Related Art For example, as shown in FIG. 7, in a pickup-type vehicle type vehicle in which a body 2 is mounted on a body frame 1 such as a ladder-type body, a connecting portion between the two is used. A vibration isolator 3 as shown in FIG.
【０００３】この防振装置３は、上側のワッシャプレー
ト４と一体成形されていて、且つ車体フレーム１に予め
溶接固定されたカップ状のホルダ６の中に位置決めされ
る中空円筒状の上側ゴム弾性体５と、下側のワッシャプ
レート７と一体成形されていて車体フレーム１の下面に
当てがわれる中空円筒状の下側ゴム弾性体８と、上側ゴ
ム弾性体５と車体フレーム１および下側ゴム弾性体８の
三者を貫通する金属製の内筒９とを備えていて、ワッシ
ャプレート４の上に載置されるボデー２とともに上記三
者を上記内筒９に挿入されるボルト１０とナット１１と
で圧締するかのごとく共締めすることで、ボデー２が車
体フレーム１に対して弾性的に支持される。なお、内筒
９はボルト１０とナット１１との締め込みに応じてその
上下両端面がそれぞれワッシャプレート４または７に着
座することで双方のゴム弾性体５，８の初期撓み量を規
制する役目をする。The vibration isolator 3 is integrally formed with an upper washer plate 4 and is positioned in a cup-shaped holder 6 which is welded and fixed to the body frame 1 in advance. Body 5, a hollow cylindrical lower rubber elastic body 8 integrally formed with the lower washer plate 7 and applied to the lower surface of the body frame 1, an upper rubber elastic body 5, the body frame 1 and the lower rubber A metal inner cylinder 9 penetrating the three members of the elastic body 8, and a bolt 10 and a nut inserted into the inner tube 9 together with the body 2 mounted on the washer plate 4. The body 2 is elastically supported by the vehicle body frame 1 by performing the joint tightening as if the body 2 is pressed together. The inner cylinder 9 has a function of regulating the initial deflection amount of the rubber elastic members 5 and 8 by having the upper and lower end surfaces thereof respectively seat on the washer plate 4 or 7 in accordance with the tightening of the bolt 10 and the nut 11. do.
【０００４】このような従来の構造では、車両組付状態
下で特に上側ゴム弾性体５が撓み変形するとそのゴム弾
性体５と内筒９との接触部で異音が発生することがあ
り、その対策として内筒９の外周面に予めシリコーンオ
イル等の潤滑剤を塗布することが行われているが、上記
潤滑効果のために車両組立ラインにおいて内筒９と下側
ゴム弾性体８が自重落下してしまうという二次的不具合
の発生が余儀なくされている。In such a conventional structure, when the upper rubber elastic body 5 is bent and deformed particularly in a vehicle assembled state, an abnormal noise may be generated at a contact portion between the rubber elastic body 5 and the inner cylinder 9. As a countermeasure, a lubricant such as silicone oil is applied to the outer peripheral surface of the inner cylinder 9 in advance, but due to the above-described lubrication effect, the inner cylinder 9 and the lower rubber elastic body 8 have their own weight in the vehicle assembly line. A secondary problem of falling down has been forced.
【０００５】より詳しくは、車両組立ラインでは、車体
フレーム１がコンベア等にて搬送される過程で、先ずホ
ルダ６に上側ゴム弾性体５を位置決めするとともに、予
め下側ゴム弾性体８に圧入した潤滑剤塗布済みの内筒９
を車体フレーム１の下側から上側ゴム弾性体５に挿入
し、さらに上側ゴム弾性体５の上にボデー２が搭載され
るのに続いてボルト１０が挿入されることで初めてそれ
らボルト１０とナット１１とによる締め込みが可能とな
る。More specifically, in the vehicle assembly line, while the body frame 1 is being conveyed by a conveyor or the like, the upper rubber elastic body 5 is first positioned in the holder 6 and pressed into the lower rubber elastic body 8 in advance. Inner cylinder 9 with lubricant applied
Is inserted into the upper rubber elastic body 5 from the lower side of the body frame 1 and the bolts 10 are inserted only after the body 2 is mounted on the upper rubber elastic body 5 and then the bolts 10 and nuts are inserted. 11 can be tightened.
【０００６】そして、上側ゴム弾性体５に内筒９を挿入
してからボルト１０とナット１１との締め込み作業を行
うまでに時間があると、上記のように潤滑剤塗布によっ
て上側ゴム弾性体５の摩擦保持力が乏しくなっているた
めに、搬送過程での振動等を受けて内筒９が下側ゴム弾
性体８とともに自重にて脱落してしまい、結果として組
付作業性が悪化してしまうことなる。If there is time between the insertion of the inner cylinder 9 into the upper rubber elastic member 5 and the tightening of the bolt 10 and the nut 11, the upper rubber elastic member is coated with a lubricant as described above. 5, the inner cylinder 9 is dropped by its own weight together with the lower rubber elastic body 8 due to vibrations and the like in the transportation process, and as a result, the assembling workability is deteriorated. It will be.
【０００７】一方、上記構造の防振装置３に代えて、例
えば特公平５−５６４１３号公報に記載されているよう
に、実質的に上記上側のワッシャプレート４と内筒９と
を一体化しつつその内筒９の上端部をテーパ状に形成し
て、内筒９を上側ゴム弾性体５の上端から挿入するよう
にしたタイプの防振装置も提案されている。On the other hand, instead of the vibration isolator 3 having the above structure, the upper washer plate 4 and the inner cylinder 9 are substantially integrated with each other as described in, for example, Japanese Patent Publication No. 5-56413. A vibration isolator of a type in which the upper end of the inner cylinder 9 is formed in a tapered shape and the inner cylinder 9 is inserted from the upper end of the upper rubber elastic body 5 has also been proposed.
【０００８】しかしながら、この構造では上記のような
一部の構成部品の脱落の問題は解消されるものの、内筒
および上側ゴム弾性体の形状が複雑となるためにコスト
アップを招きやすいばかりでなく、車体フレームから下
方に突出した内筒に対して下側ゴム弾性体を挿入せざる
を得ないことから、その下側ゴム弾性体自体が挿入しに
くいものとなって好ましくない。[0008] However, although this structure solves the problem of the detachment of some components as described above, the shape of the inner cylinder and the upper rubber elastic body is complicated, which not only tends to increase the cost but also increases the cost. However, since the lower rubber elastic body must be inserted into the inner cylinder projecting downward from the vehicle body frame, the lower rubber elastic body itself becomes difficult to insert, which is not preferable.
【０００９】本発明は以上のような課題に着目してなさ
れたもので、図８に示した構造であって且つその内筒に
予め潤滑剤を塗布することを前提としつつも、内筒や下
側ゴム弾性体の脱落を確実に防止して、コストアップを
招くことなく組付作業性を改善した防振装置の構造を提
供しようとするものである。The present invention has been made in view of the above problems, and has a structure shown in FIG. 8 and presupposes that a lubricant is applied to the inner cylinder thereof in advance. An object of the present invention is to provide a structure of an anti-vibration device in which the lower rubber elastic body is reliably prevented from falling off and the assembling workability is improved without increasing the cost.
【００１０】[0010]
【課題を解決するための手段】請求項１に記載の発明
は、支持部材とその支持部材の上に載置される被支持部
材との間に介装される上部ゴム弾性体と、前記支持部材
の下面側に当てがわれる下側ゴム弾性体と、前記上側ゴ
ム弾性体と支持部材および下側ゴム弾性体の三者を貫通
するように内挿される内筒と、前記内筒に挿入されて支
持部材と被支持部材および双方のゴム弾性体の四者を共
締め固定する締結部材とを備えた防振装置であることを
前提としている。According to a first aspect of the present invention, there is provided an upper rubber elastic body interposed between a support member and a supported member mounted on the support member, and A lower rubber elastic body applied to the lower surface side of the member, an inner cylinder inserted so as to penetrate the upper rubber elastic body, the support member, and the lower rubber elastic body, and an inner cylinder inserted into the inner cylinder. It is assumed that the vibration isolator includes a support member, a supported member, and a fastening member that fastens and fixes the four members of both rubber elastic bodies.
【００１１】その上で、上記内筒の一部に上側ゴム弾性
体からの脱落を阻止する突起部を形成したことを特徴と
している。Further, a projection is formed on a part of the inner cylinder to prevent the inner cylinder from falling off from the upper rubber elastic body.
【００１２】この場合、上側ゴム弾性体への挿入性を考
慮すると上記突起部は先細りのテーパ形状に形成されて
いるのが望ましい。また、上記突起部はその内筒自体と
下側ゴム弾性体とが自重にて上側ゴム弾性体から抜け落
ちないだけの保持力があれば機能上十分であるが、請求
項２に記載の発明のように、上側ゴム弾性体の内周にも
内筒側突起部と係止可能な弾性体側突起部が形成されて
いると保持力向上効果もしくは脱落防止効果の向上の上
でより好ましいものとなる。同時に、上側ゴム弾性体の
自由長状態で、双方の突起部以外の部分ではその上側ゴ
ム弾性体の内周面と内筒の外周面との間に所定の隙間を
確保しておくと、両者の接触面積が小さくなって内筒の
挿入作業性がより良好となる。In this case, considering the ease of insertion into the upper rubber elastic body, it is desirable that the protrusion is formed in a tapered shape. In addition, the protrusion is functionally sufficient if the inner cylinder itself and the lower rubber elastic body have a holding force enough to prevent the inner rubber itself and the lower rubber elastic body from falling off from the upper rubber elastic body by its own weight. As described above, it is more preferable that the elastic body-side projection that can be locked to the inner cylinder-side projection is also formed on the inner periphery of the upper rubber elastic body in order to improve the holding force improving effect or the dropout preventing effect. . At the same time, in the free length state of the upper rubber elastic body, if a predetermined gap is secured between the inner peripheral surface of the upper rubber elastic body and the outer peripheral surface of the inner cylinder in portions other than the two projections, And the contact area of the inner cylinder is reduced, and the workability of inserting the inner cylinder is further improved.
【００１３】さらに、請求項３に記載の発明のように、
上記内筒は支持部材の下方側から上側弾性体に対して挿
入されるようになっていて、その内筒のうち内筒側突起
部よりも上側ゴム弾性体への挿入始端部側に挿入ガイド
部が形成されていると挿入作業性の向上の上でより好ま
しいものとなる。Further, as in the invention according to claim 3,
The inner cylinder is inserted into the upper elastic body from the lower side of the support member, and an insertion guide is provided at a start end side of the inner cylinder that is inserted into the upper rubber elastic body with respect to the inner cylinder side protrusion. The formation of the portion is more preferable in terms of improving the insertion workability.
【００１４】したがって、請求項１に記載の発明では、
内筒側に形成された突起部が上側ゴム弾性体の内周の一
部を弾性変形させながら食い込むことで自己保持効果が
発揮され、ボルトおよびナットが締結される前であって
も少なくとも内筒と下側ゴム弾性体との自重によってそ
れら両者が脱落するようなことはなくなる。Therefore, according to the first aspect of the present invention,
The protrusions formed on the inner cylinder side bite while elastically deforming a part of the inner periphery of the upper rubber elastic body, thereby exerting a self-holding effect, and at least even before the bolts and nuts are fastened, at least the inner cylinder. The weight of the lower rubber elastic body and the lower rubber elastic body do not drop off.
【００１５】特に、請求項２に記載の発明のように、上
側ゴム弾性体の内周にも内筒側突起部と係止可能な弾性
体側突起部が形成されていると、弾性力に依存せずに双
方の突起部同士の機械的係止によって内筒や下側ゴム弾
性体の脱落が阻止され、その脱落防止効果が顕著とな
る。[0015] In particular, as in the second aspect of the present invention, if an elastic-body-side protrusion that can be engaged with the inner-cylinder-side protrusion is also formed on the inner periphery of the upper rubber elastic body, it depends on the elastic force. Without this, the inner cylinder and the lower rubber elastic body are prevented from falling off by mechanical locking between the two projections, and the effect of preventing the falling off is remarkable.
【００１６】また、請求項３に記載の発明のように、内
筒が支持部材の下方側から上側ゴム弾性体に対して挿入
されるようになっていることを前提とした上で、その内
筒のうち内筒側突起部よりも上側ゴム弾性体への挿入始
端部側に挿入ガイド部が形成されていると、上側ゴム弾
性体への内筒の挿入に際して案内効果が発揮されるため
に、内筒の挿入作業が容易となる。Also, on the premise that the inner cylinder is inserted from below the support member into the upper rubber elastic body as in the invention according to claim 3, When the insertion guide portion is formed at the insertion start end side of the upper rubber elastic body with respect to the inner cylinder side protrusion portion of the cylinder, a guide effect is exhibited when the inner cylinder is inserted into the upper rubber elastic body. The work of inserting the inner cylinder becomes easy.
【００１７】[0017]
【発明の効果】請求項１に記載の発明によれば、内筒や
上側ゴム弾性体の大幅な形状変更等を行うことなく、ご
くわずかな突起部を付加するだけで上側ゴム弾性体から
の内筒の脱落を防止できるようになり、コストアップを
招くことなく防振装置の組付作業性を改善できる効果が
ある。According to the first aspect of the present invention, it is possible to remove the inner cylinder and the upper rubber elastic body from the upper rubber elastic body by adding only a small number of projections without significantly changing the shape. It is possible to prevent the inner cylinder from falling off, and it is possible to improve the workability of assembling the vibration isolator without increasing the cost.
【００１８】特に、請求項２に記載の発明のように、上
側ゴム弾性体側にも突起部を形成すると、弾性力に依存
せずに突起部同士の係止によって脱落が阻止されるよう
になり、脱落防止効果が一段と顕著となって信頼性が高
くなるほか、請求項３に記載の発明のように内筒側に突
起部とともに挿入ガイド部を形成すると、上側ゴム弾性
体への内筒挿入時の挿入作業性をも良好なものとなる利
点がある。In particular, when the projections are also formed on the upper rubber elastic body side as in the second aspect of the present invention, the projections are prevented from falling off by locking the projections independently of the elastic force. In addition, the effect of preventing the falling off becomes more remarkable and the reliability is enhanced. In addition, when the insertion guide portion is formed together with the projection on the inner cylinder side as in the invention of claim 3, the inner cylinder can be inserted into the upper rubber elastic body. There is an advantage that the insertion workability at the time is also improved.
【００１９】[0019]
【発明の実施の形態】図１〜図４は本発明に係る防振装
置の好ましい第１の実施の形態を示す図であって、特に
図１は防振装置構成要素の分解図を、図２および図３は
その組付手順をそれぞれ示している。なお、本実施の形
態の説明にあたり、先に図７，８に基づいて説明した従
来の防振装置の構造と共通する部分には同一符号を付し
てある。1 to 4 show a first preferred embodiment of a vibration isolator according to the present invention. FIG. 1 is an exploded view of components of the vibration isolator. 2 and 3 show the assembling procedure, respectively. In the description of the present embodiment, the same reference numerals are given to portions common to the structure of the conventional vibration isolator described above with reference to FIGS.
【００２０】図１に示すように、防振装置１３は、予め
ワッシャプレート４と一体に形成された上側ゴム弾性体
５と、同じく予めワッシャプレート７と一体に形成され
た下側ゴム弾性体８、およびそれら上下のゴム弾性体
５，８に内挿されることになる内筒１２とを主要素とし
て構成されているものであるが、図４に拡大して示すよ
うに、内筒１２の上端外周部には内筒側突起部として先
細りテーパ形状をなす斜状突起部１４が一体に形成され
ている一方、その内筒１２が挿入されることになる上側
ゴム弾性体５の下端内周面には弾性体側突起部として環
状突起部１５が同じく一体に形成されている。なお、上
記環状突起部１５の下方には、支持部材たる車体フレー
ム１側の取付穴１ａと内筒１２との直接接触を回避する
ためのカラー部１６が一体に形成されている。As shown in FIG. 1, an anti-vibration device 13 comprises an upper rubber elastic body 5 previously formed integrally with the washer plate 4 and a lower rubber elastic body 8 also formed previously integrally with the washer plate 7. , And the inner cylinder 12 to be inserted into the upper and lower rubber elastic bodies 5 and 8 as main elements. As shown in an enlarged manner in FIG. The outer peripheral portion is integrally formed with an inclined projection 14 having a tapered tapered shape as an inner cylinder side projection, while the lower inner peripheral surface of the upper rubber elastic body 5 into which the inner cylinder 12 is inserted. An annular projection 15 is also integrally formed as an elastic body side projection. In addition, a collar portion 16 for avoiding direct contact between the mounting hole 1a on the vehicle body frame 1 side serving as a support member and the inner cylinder 12 is integrally formed below the annular projection portion 15.
【００２１】そして、この斜状突起部１４の最大直径と
環状突起部１５の最小内径ならびに上側ゴム弾性体５の
内周面の直径との相互関係についてみたとき、上側ゴム
弾性体５の自由長状態では、図２の（Ｂ）および図３の
（Ａ）に示すように、斜状突起部１４が環状突起部１５
を乗り越えるようにその内筒１２を上側ゴム弾性体５に
一旦挿入すると、上記斜状突起部１４が環状突起部１５
に引っ掛かって上側ゴム弾性体５から内筒１２が抜け落
ちないように設定されていて、同時に、上側ゴム弾性体
５の内周面のうち斜状突起部１４が接する部分と環状突
起部１５が内筒１２の外周面に接する部分とを除いた部
分では、内筒１２との間に所定の隙間Ｇが確保されるよ
うに設定されている。When the maximum diameter of the oblique projection 14 and the minimum inner diameter of the annular projection 15 and the diameter of the inner peripheral surface of the upper rubber elastic body 5 are correlated with each other, the free length of the upper rubber elastic body 5 is obtained. In the state, as shown in FIG. 2B and FIG. 3A, the oblique projection 14 is
Once the inner cylinder 12 is inserted into the upper rubber elastic body 5 so as to get over the
The inner cylinder 12 is set so as not to fall off from the upper rubber elastic body 5 by being caught in the upper rubber elastic body 5. At the same time, the portion of the inner peripheral surface of the upper rubber elastic body 5 where the oblique projection 14 contacts and the annular projection 15 are formed inside. Except for a portion in contact with the outer peripheral surface of the cylinder 12, a predetermined gap G is set between the cylinder 12 and the inner cylinder 12.
【００２２】したがって、本実施の形態によれば、図２
の（Ａ）に示すように車体フレーム１側のホルダ６内に
上側ゴム弾性体５を位置決めする一方、内筒１２の下端
面が下側ゴム弾性体８側のワッシャプレート７に着座す
るようにその内筒１２を下側ゴム弾性体８に予め圧入
し、さらに内筒１２のうち下側ゴム弾性体８から突出す
ることになる部分の外周面にシリコーンオイル等の潤滑
剤を塗布する。Therefore, according to the present embodiment, FIG.
(A), the upper rubber elastic body 5 is positioned in the holder 6 on the body frame 1 side, while the lower end surface of the inner cylinder 12 is seated on the washer plate 7 on the lower rubber elastic body 8 side. The inner cylinder 12 is press-fitted into the lower rubber elastic body 8 in advance, and a lubricant such as silicone oil is applied to the outer peripheral surface of a portion of the inner cylinder 12 that will protrude from the lower rubber elastic body 8.
【００２３】なお、図１にも示すように、下側ゴム弾性
体８の内周にも予め環状突起部１７が形成されていて、
その自由状態では内周の一部が狭窄状のものとなってい
ることから、下側ゴム弾性体８に一旦内筒１２を圧入す
ると下側ゴム弾性体８の内周面全面にて内筒１２に接触
し、しかも下側ゴム弾性体８の弾性圧締力が十分に大き
いために、両者が容易に離脱することはない。また、上
記潤滑剤の塗布は、従来と同様に上側ゴム弾性体５と内
筒１２との相対変位に基づく異音発生を防止するために
行われる。As shown in FIG. 1, an annular projection 17 is also formed on the inner periphery of the lower rubber elastic body 8 in advance.
In the free state, a part of the inner circumference is narrowed. Therefore, once the inner cylinder 12 is press-fitted into the lower rubber elastic body 8, the inner cylinder is entirely formed on the inner peripheral surface of the lower rubber elastic body 8. Since the lower rubber elastic body 8 is in contact with the lower rubber elastic body 8 and the elastic pressing force of the lower rubber elastic body 8 is sufficiently large, the two are not easily separated from each other. Further, the application of the lubricant is performed in order to prevent the generation of abnormal noise based on the relative displacement between the upper rubber elastic body 5 and the inner cylinder 12 as in the related art.
【００２４】そして、同図（Ｂ）に示すように、上側ゴ
ム弾性体５を押さえながら車体フレーム１の下方からそ
の上側ゴム弾性体５に内筒１２を挿入する。すなわち、
内筒１２の先端の斜状突起部１４が上側ゴム弾性体５側
の環状突起部１５を乗り越えるようにして上側ゴム弾性
体５の内周部に挿入し、内筒１２に予め圧入されている
下側ゴム弾性体８を車体フレーム１の下面に密着させ
る。この時、上記斜状突起部１４が環状突起部１５を一
旦通過してしまうと、内筒１２自体に予め潤滑剤が塗布
されていて、しかも上側ゴム弾性体５と内筒１２とは斜
状突起部１４および環状突起部１５の先端で接触してい
るだけであるから、斜状突起部１４自体が先細り形状で
あることとも相俟って、きわめて小さい操作力で内筒１
２を上側ゴム弾性体５に挿入することができる。また、
上側ゴム弾性体５に内筒１２を挿入すると、小さいなが
らも上側ゴム弾性体５の弾性圧締力が内筒１２に作用し
て、同図の状態を自己保持することができる。Then, as shown in FIG. 2B, the inner cylinder 12 is inserted into the upper rubber elastic body 5 from below the vehicle body frame 1 while pressing the upper rubber elastic body 5. That is,
The oblique projection 14 at the tip of the inner cylinder 12 is inserted into the inner peripheral portion of the upper rubber elastic body 5 so as to get over the annular projection 15 on the upper rubber elastic body 5 side, and is press-fitted into the inner cylinder 12 in advance. The lower rubber elastic body 8 is brought into close contact with the lower surface of the vehicle body frame 1. At this time, once the slanted projections 14 have passed the annular projections 15, the inner cylinder 12 itself has been coated with a lubricant in advance, and the upper rubber elastic body 5 and the inner cylinder 12 are slanted. Since only the tips of the projections 14 and the annular projections 15 are in contact with each other, the slanted projections 14 themselves have a tapered shape, so that the inner cylinder 1 can be operated with extremely small operating force.
2 can be inserted into the upper rubber elastic body 5. Also,
When the inner cylinder 12 is inserted into the upper rubber elastic body 5, the elastic pressing force of the small but upper rubber elastic body 5 acts on the inner cylinder 12 so that the state shown in FIG.
【００２５】続いて、図３の（Ａ）に示すように、上側
ゴム弾性体５の上方に被支持部材であるボデー２が締結
手段であるボルト１０とともに位置決めされた上で、そ
のボルト１０が内筒１２に挿入されることになるのであ
るが、それ以前に何らかの振動等を受けて内筒１２が下
側ゴム弾性体８とともに自重で滑り落ちたとしても、内
筒１２側の斜状突起部１４が上側ゴム弾性体５の環状突
起部１５に引っ掛かった時点で停止することから、内筒
１２が下側ゴム弾性体８とともに上側ゴム弾性体５から
完全に抜け落ちてしまうことはない。Subsequently, as shown in FIG. 3A, the body 2 as the supported member is positioned above the upper rubber elastic body 5 together with the bolt 10 as the fastening means. Although it is inserted into the inner cylinder 12, even if the inner cylinder 12 slides down by its own weight together with the lower rubber elastic body 8 due to some vibration or the like before that, the oblique projection on the inner cylinder 12 side Since the portion 14 stops when it is hooked on the annular projection 15 of the upper rubber elastic body 5, the inner cylinder 12 does not completely fall out of the upper rubber elastic body 5 together with the lower rubber elastic body 8.
【００２６】以降は、同図（Ｂ）に示すように、一旦下
方に移動した内筒１２を下側ゴム弾性体８とともに押し
戻しつつその内筒１２にボルト１０を挿入した上でナッ
ト１１を螺合させ、内筒１２の上端面が上側ゴム弾性体
５のワッシャプレート４に、内筒１２の下端面が下側ゴ
ム弾性体８のワッシャプレート７にそれぞれ着座するま
で締め付けて、実質的に上側ゴム弾性体５と下側ゴム弾
性体８のほか車体フレーム１およびボデー２を含む四者
を圧締固定する。以上をもって防振装置１３としての機
能を発揮することができるようになり、同時に斜状突起
部１４や環状突起部１５はその機能を失うことになる。Thereafter, as shown in FIG. 2B, the bolt 10 is inserted into the inner cylinder 12 while the inner cylinder 12 once moved downward is pushed back together with the lower rubber elastic body 8, and then the nut 11 is screwed. The inner cylinder 12 is tightened until the upper end surface of the inner cylinder 12 is seated on the washer plate 4 of the upper rubber elastic body 5 and the lower end surface of the inner cylinder 12 is seated on the washer plate 7 of the lower rubber elastic body 8. Four members including the vehicle body frame 1 and the body 2 as well as the rubber elastic body 5 and the lower rubber elastic body 8 are pressed and fixed. As described above, the function as the vibration isolator 13 can be exhibited, and at the same time, the oblique projection 14 and the annular projection 15 lose their functions.
【００２７】なお、上記防振装置１３として機能する際
に上側ゴム弾性体５が圧縮変形するとその円筒面が外側
に膨出することになるが、上側ゴム弾性体５の過大な膨
出変形はその外側のホルダ６によって規制される。When the upper rubber elastic body 5 is compressed and deformed when functioning as the vibration isolator 13, its cylindrical surface swells outward. It is regulated by the outer holder 6.
【００２８】また、上記ボルト１０およびナット１１の
締め付け形態としては種々の変形が可能であり、例えば
図３のボルト１０とナット１１との相対位置関係を逆に
してボルト１０を上側からでなく下側から挿入すること
も可能であり、さらに、ナット１１はウエルドナットと
して下側ゴム弾性体８のワッシャプレート７もしくはボ
デー２側に予め溶接固定されていてもよい。The bolt 10 and the nut 11 can be variously tightened in various forms. For example, the bolt 10 and the nut 11 shown in FIG. It is also possible to insert from the side, and the nut 11 may be welded and fixed in advance to the washer plate 7 or the body 2 side of the lower rubber elastic body 8 as a weld nut.
【００２９】このように本実施の形態によれば、図３の
（Ａ）に示したように上側ゴム弾性体５に挿入した内筒
１２が下側ゴム弾性体８とともに滑り落ちようとして
も、同図の状態を限度としてそれ以上の脱落が確実に阻
止されるので、従来のように内筒１２の完全脱落によっ
て組付作業性が阻害されることがない。As described above, according to the present embodiment, even if the inner cylinder 12 inserted into the upper rubber elastic body 5 slides down together with the lower rubber elastic body 8 as shown in FIG. Further dropping is reliably prevented with the condition shown in the drawing as a limit, so that the assembly workability is not hindered by the complete dropping of the inner cylinder 12 as in the conventional case.
【００３０】図５，６は本発明に係る防振装置１３の好
ましい第２，第３の実施の形態を示す図で、図５では内
筒側突起部である斜状突起部２４よりも上側ゴム弾性体
５への挿入始端部側、すなわち斜状突起部２４の上端側
に、内筒１２自体の一般部直径と同等径で且つ所定長さ
Ｌの挿入ガイド部１８を形成したものあり、また図６で
は内筒側突起部と挿入ガイド部１８とを併存させること
を前提としつつもその内筒側突起部として断面半円状の
突起部３４を形成したものである。FIGS. 5 and 6 are views showing preferred second and third embodiments of the vibration isolator 13 according to the present invention. In FIG. 5, the upper side of the oblique projection 24 which is the inner cylinder side projection is shown. An insertion guide portion 18 having a diameter equal to the diameter of the general portion of the inner cylinder 12 and a predetermined length L is formed on the side of the insertion start end of the rubber elastic body 5, that is, on the upper end side of the oblique projection 24. In FIG. 6, a projection 34 having a semicircular cross section is formed as the projection on the inner cylinder side, assuming that the projection on the inner cylinder side and the insertion guide 18 coexist.
【００３１】これら第２，第３の実施の形態では、斜状
突起部２４や突起部３４は第１の実施の形態の斜状突起
部１４と同等の脱落防止機能が発揮される一方、挿入ガ
イド部１８があることによって同じく第１の実施の形態
と同等の内筒１２の挿入容易性を確保できることにな
る。In the second and third embodiments, the slanted projections 24 and 34 have the same drop-prevention function as the slanted projections 14 of the first embodiment, while they are inserted. By the presence of the guide portion 18, the same ease of insertion of the inner cylinder 12 as in the first embodiment can be secured.
【図１】本発明に係る防振装置の第１の実施の形態を示
す図で、その防振装置の主たる構成要素の分解図。FIG. 1 is a diagram showing a first embodiment of an anti-vibration device according to the present invention, and is an exploded view of main components of the anti-vibration device.
【図２】上記防振装置の組付手順を示す工程説明図。FIG. 2 is a process explanatory view showing a procedure for assembling the vibration isolator.
【図３】図２に続く防振装置の組付手順を示す工程説明
図。FIG. 3 is an explanatory process diagram showing a procedure of assembling the vibration isolator subsequent to FIG. 2;
【図４】図１に示す内筒の要部拡大図。FIG. 4 is an enlarged view of a main part of the inner cylinder shown in FIG. 1;
【図５】本発明に係る防振装置の第２の実施の形態を示
す内筒の要部拡大図。FIG. 5 is an enlarged view of a main part of an inner cylinder showing a second embodiment of the vibration isolator according to the present invention.
【図６】本発明に係る防振装置の第３の実施の形態を示
す内筒の要部拡大図。FIG. 6 is an enlarged view of a main part of an inner cylinder showing a third embodiment of the vibration isolator according to the present invention.
【図７】ピックアップ型車の車体フレームとボデーとの
関係を示す側面説明図。FIG. 7 is an explanatory side view showing a relationship between a body frame and a body of the pickup type vehicle.
【図８】図７のａ部拡大断面図。FIG. 8 is an enlarged sectional view of a part a in FIG. 7;
１…車体フレーム（支持部材） ２…ボデー（被支持部材） ４…ワッシャプレート ５…上側ゴム弾性体 ７…ワッシャプレート ８…下側ゴム弾性体 １０…ボルト（締結手段） １１…ナット １２…内筒 １３…防振装置 １４…斜状突起部（内筒側突起部） １５…環状突起部（弾性体側突起部） １８…挿入ガイド部 ２４…斜状突起部（内筒側突起部） ３４…斜状突起部（内筒側突起部） DESCRIPTION OF SYMBOLS 1 ... Body frame (support member) 2 ... Body (supported member) 4 ... Washer plate 5 ... Upper rubber elastic body 7 ... Washer plate 8 ... Lower rubber elastic body 10 ... Bolt (fastening means) 11 ... Nut 12 ... Inside Cylinder 13: Anti-vibration device 14: Oblique projection (inner cylinder side projection) 15: Annular projection (elastic body side projection) 18: Insertion guide section 24: Oblique projection (inner cylinder side projection) 34 ... Oblique projection (inner cylinder side projection)
Claims (3)
る被支持部材との間に介装される上部ゴム弾性体と、前
記支持部材の下面側に当てがわれる下側ゴム弾性体と、
前記上側ゴム弾性体と支持部材および下側ゴム弾性体の
三者を貫通するように内挿される内筒と、前記内筒に挿
入されて支持部材と被支持部材および双方のゴム弾性体
の四者を共締め固定する締結部材とを備えた防振装置に
おいて、 前記内筒の一部に上側ゴム弾性体からの脱落を阻止する
突起部が形成されていることを特徴とする防振装置。An upper rubber elastic body interposed between a supporting member and a supported member placed on the supporting member, and a lower rubber elastic body applied to a lower surface side of the supporting member. When,
An inner cylinder inserted so as to penetrate the upper rubber elastic body, the support member, and the lower rubber elastic body; and a support member, a supported member, and both rubber elastic bodies inserted into the inner cylinder. A vibration damping device comprising: a fastening member for fastening and fastening a person together, wherein a protrusion for preventing the inner cylinder from dropping off from the upper rubber elastic body is formed.
部と係止可能な弾性体側突起部が形成されていることを
特徴とする請求項１に記載の防振装置。2. An anti-vibration device according to claim 1, wherein an elastic-body-side projection that can be engaged with the inner-cylinder-side projection is formed on an inner periphery of the upper rubber elastic body.
性体に対して挿入されるようになっていて、その内筒の
うち内筒側突起部よりも上側ゴム弾性体への挿入始端部
側に挿入ガイド部が形成されていることを特徴とする請
求項２に記載の防振装置。3. The inner cylinder is inserted into the upper elastic body from the lower side of the support member, and the insertion start end of the inner cylinder into the upper rubber elastic body from the inner cylinder-side protrusion. The anti-vibration device according to claim 2, wherein an insertion guide part is formed on the side of the part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000141259A JP2001323965A (en) | 2000-05-15 | 2000-05-15 | Vibration control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000141259A JP2001323965A (en) | 2000-05-15 | 2000-05-15 | Vibration control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001323965A true JP2001323965A (en) | 2001-11-22 |
Family
ID=18648399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000141259A Pending JP2001323965A (en) | 2000-05-15 | 2000-05-15 | Vibration control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001323965A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005082095A (en) * | 2003-09-10 | 2005-03-31 | Mitsubishi Motors Corp | Body mount device |
| KR101361827B1 (en) | 2012-01-30 | 2014-02-14 | 삼성탈레스 주식회사 | Vibration Proof Pad Having Supporting Member |
| JP2014152583A (en) * | 2013-02-13 | 2014-08-25 | Toyo Tire & Rubber Co Ltd | Shock absorbing apparatus and tank support structure for construction machine using the same |
| CN107806491A (en) * | 2017-09-27 | 2018-03-16 | 安徽江淮汽车集团股份有限公司 | A kind of beam |
| CN108657281A (en) * | 2018-06-08 | 2018-10-16 | 滁州市外星人装备科技有限公司 | A kind of body of a motor car is connect with chassis uses reinforced support |
-
2000
- 2000-05-15 JP JP2000141259A patent/JP2001323965A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005082095A (en) * | 2003-09-10 | 2005-03-31 | Mitsubishi Motors Corp | Body mount device |
| KR101361827B1 (en) | 2012-01-30 | 2014-02-14 | 삼성탈레스 주식회사 | Vibration Proof Pad Having Supporting Member |
| JP2014152583A (en) * | 2013-02-13 | 2014-08-25 | Toyo Tire & Rubber Co Ltd | Shock absorbing apparatus and tank support structure for construction machine using the same |
| CN107806491A (en) * | 2017-09-27 | 2018-03-16 | 安徽江淮汽车集团股份有限公司 | A kind of beam |
| CN108657281A (en) * | 2018-06-08 | 2018-10-16 | 滁州市外星人装备科技有限公司 | A kind of body of a motor car is connect with chassis uses reinforced support |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5040917A (en) | Device for fixing mechanical parts to the body of a motor vehicle | |
| US4014588A (en) | Mounting device for elastically mounting cab | |
| US5941511A (en) | Bushing apparatus | |
| US5975505A (en) | Mount insulator | |
| JPH0776575B2 (en) | A support bracket that elastically connects the vehicle parts, especially the subframe to the vehicle body | |
| JP2004521276A (en) | Apparatus for elastically supporting a hydraulic unit of a vehicle brake system to a vehicle | |
| KR100794439B1 (en) | Anchor post non-articulating idler socket joint | |
| JP2001323965A (en) | Vibration control device | |
| JP2001295886A (en) | Vibration control device | |
| JP3334039B2 (en) | Automotive anti-vibration device | |
| JP3295322B2 (en) | Spring seat rubber for vehicle suspension system | |
| JPH09196095A (en) | Elastic stopper for vibration control device | |
| US20220333662A1 (en) | Damping apparatus and method for installation thereof | |
| JP4205424B2 (en) | Vibration isolator | |
| JP3178591B2 (en) | Anti-vibration device for power unit | |
| JPH08326811A (en) | Vibration control device | |
| JP3162317B2 (en) | Dynamic damper | |
| JP2002174289A (en) | Vibration damping bolt and fastening structure with vibration damping function imparted thereto | |
| JPH068012U (en) | Suspension arm mounting structure | |
| JP2602271Y2 (en) | Anti-vibration mount | |
| JP2003042217A (en) | Assembly structure of shock absorber | |
| JP2000018326A (en) | Vibration isolating rubber structure | |
| JP2002303347A (en) | Vibration control device for automobile | |
| JPH0914327A (en) | Strat mount | |
| KR100205901B1 (en) | Double clip assembly for the cable and wire-ring fastening |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20040611 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20040720 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20040916 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20041214 |