JP2886366B2 - Liquid filled vibration isolator - Google Patents
Liquid filled vibration isolatorInfo
- Publication number
- JP2886366B2 JP2886366B2 JP17722491A JP17722491A JP2886366B2 JP 2886366 B2 JP2886366 B2 JP 2886366B2 JP 17722491 A JP17722491 A JP 17722491A JP 17722491 A JP17722491 A JP 17722491A JP 2886366 B2 JP2886366 B2 JP 2886366B2
- Authority
- JP
- Japan
- Prior art keywords
- rubber film
- plate
- rubber
- opening
- outer peripheral
- 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 - Fee Related
Links
Landscapes
- Combined Devices Of Dampers And Springs (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は液封入防振装置に関し、
特に液室の室壁を構成するゴム膜の確実なシールと、装
置の安定的な取付けとをコンパクトな装置で両立せしめ
た液封入防振装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid filled vibration isolator,
In particular, the present invention relates to a liquid-filled vibration isolator in which a reliable seal of a rubber film constituting a chamber wall of a liquid chamber and stable mounting of the device are compatible with a compact device.
【０００２】[0002]
【従来の技術】従来の液封入防振装置の一例を図２に示
す。図において、振動体を支持するゴム弾性体壁１は下
方へ漸次開放する厚肉半容器状をなし、その開口縁には
筒状側板２の上端が接合してある。筒内空間は仕切板４
により上下に区画され、仕切板４の下方に配設した薄肉
ゴム膜３により閉鎖された空間内は、上記ゴム弾性体壁
１を室壁とする主液室Ａとゴム膜３を室壁とする副液室
Ｂに区画されている。2. Description of the Related Art FIG. 2 shows an example of a conventional liquid filled vibration isolator. In the figure, a rubber elastic body wall 1 for supporting a vibrating body has a thick semi-container shape which is gradually opened downward, and an upper end of a cylindrical side plate 2 is joined to an opening edge thereof. The space inside the cylinder is a partition plate 4
The main liquid chamber A having the rubber elastic body wall 1 as a chamber wall and the rubber film 3 as a chamber wall are defined by a thin rubber film 3 disposed below the partition plate 4. The sub liquid chamber B is partitioned.
【０００３】ゴム膜３の下方にはこれの背後に空気室Ｃ
を形成して半容器状の底板６が設けてあり、上記ゴム膜
３は外周縁を仕切板４の下面に密着せしめた状態で底板
６の開口縁にかしめ固定されている。上下の液室Ａ，Ｂ
は仕切板４の外周に形成した絞り流路４１により互いに
連通し、振動体はゴム弾性体壁１の頂面に接合した上板
７上に載置されてボルト固定される。また、防振装置は
底板６を基体上に位置せしめてボルト固定される。An air chamber C is provided below the rubber film 3 behind it.
Is formed, and a semi-container-shaped bottom plate 6 is provided. The rubber film 3 is caulked and fixed to the opening edge of the bottom plate 6 in a state where the outer peripheral edge is brought into close contact with the lower surface of the partition plate 4. Upper and lower liquid chambers A and B
Are communicated with each other by a throttle channel 41 formed on the outer periphery of the partition plate 4, and the vibrating body is placed on the upper plate 7 joined to the top surface of the rubber elastic body wall 1 and fixed by bolts. Further, the vibration isolator is bolted with the bottom plate 6 positioned on the base.
【０００４】振動が入力するとこれに応じて主液室Ａの
容積が変化し、密封液が絞り流路４１を経て副液室Ｂへ
流通して振動減衰力を生じる。When the vibration is input, the volume of the main liquid chamber A changes in response to the vibration, and the sealing liquid flows through the throttle passage 41 to the sub liquid chamber B to generate a vibration damping force.
【０００５】[0005]
【発明が解決しようとする課題】ところで、ゴム膜３の
液シール性を確保するためには、仕切板４の下面に密着
せしめられるゴム膜外周縁の長さＬを確保する必要があ
り、このため、底板６開口縁のかしめ深さｌ´１は一定
以上深くする必要がある。By the way, in order to ensure the liquid sealing property of the rubber film 3, it is necessary to ensure the length L of the outer peripheral edge of the rubber film which is brought into close contact with the lower surface of the partition plate 4. Therefore, the caulking depth l'1 of the opening edge of the bottom plate 6 needs to be more than a certain depth.
【０００６】一方、防振装置を安定的に基体に固定する
ためには底板６の平面部径ｌ´２は充分な大きさを確保
する必要がある。したがって、装置のコンパクト化を図
る場合に、液シールの確実性と装置固定の安定性を両立
せしめることが困難であった。On the other hand, in order to stably fix the vibration isolator to the base, it is necessary to ensure that the plane portion diameter l'2 of the bottom plate 6 is large enough. Therefore, it has been difficult to achieve both the reliability of the liquid seal and the stability of fixing the device when the device is downsized.
【０００７】本発明はかかる課題を解決するもので、装
置の安定な取付けと確実な液シールをコンパクトな構造
で実現した液封入防振装置を提供することを目的とす
る。An object of the present invention is to provide a liquid filled vibration isolator which realizes stable mounting of the device and reliable liquid sealing with a compact structure.
【０００８】[0008]
【課題を解決するための手段】本発明の構成を説明する
と、振動体を支持し下方へ開放する厚肉半容器状のゴム
弾性体壁１と、該ゴム弾性体壁１の開口縁に一端が接合
された筒状の側板２と、側板２の開口を閉鎖する薄肉の
ゴム膜３と、ゴム弾性体壁１とゴム膜３により密閉され
た空間内を二分して上記ゴム弾性体壁１を室壁とする主
液室Ａとゴム膜３を室壁とする副液室Ｂとを形成する、
絞り流路４１を設けた仕切板４とを具備する液封入防振
装置において、上記仕切板４の外周下面に上記ゴム膜３
の外周縁を密着せしめるとともに、ゴム膜３の外周縁下
面に密着し内方へ所定長さで延びる開口縁フランジ５１
を形成した半容器状の中板５を設け、これら仕切板４、
ゴム膜３および中板５の外周縁を、上方へ開放する半容
器状に成形した底板６の開口縁に上記側板２の他端とと
もにかしめ固定したものである。To explain the structure of the present invention, a rubber elastic body wall 1 in the form of a thick semi-container that supports a vibrating body and opens downward, and one end of the rubber elastic body wall 1 at an opening edge thereof. , A thin rubber film 3 for closing the opening of the side plate 2, a rubber elastic body wall 1 and a space enclosed by the rubber film 3 to divide the rubber elastic body wall 1 into two. Are formed as a main liquid chamber A having a chamber wall and a sub liquid chamber B having a rubber film 3 as a chamber wall.
In a liquid filled vibration isolator provided with a partition plate 4 provided with a throttle channel 41, the rubber film 3
And an opening edge flange 51 that is in close contact with the lower surface of the outer peripheral edge of the rubber film 3 and extends inward at a predetermined length.
Are provided, and these partition plates 4,
The outer peripheral edges of the rubber film 3 and the middle plate 5 are fixed together with the other end of the side plate 2 to the opening edge of a bottom plate 6 formed into a semi-container shape that opens upward.
【０００９】[0009]
【作用】上記構成の防振装置において、底板６の平面部
の径を充分に大きく確保すると、底板開口縁のかしめの
深さは浅くなる。ここにおいて、ゴム膜３の外周縁下面
には中板５の開口縁フランジ５１が所定長さで密着する
から、この部分での液シール性は損なわれることなく確
保される。In the vibration isolator of the above construction, if the diameter of the flat portion of the bottom plate 6 is made sufficiently large, the caulking depth of the opening edge of the bottom plate becomes shallow. Here, since the opening edge flange 51 of the intermediate plate 5 is closely adhered to the lower surface of the outer peripheral edge of the rubber film 3 at a predetermined length, the liquid sealing property at this portion is secured without being impaired.
【００１０】[0010]
【実施例】以下、本発明の一実施例を従来との相違点を
中心に以下に説明する。筒状側板２の内空間を上下に区
画する仕切板４は、中心部をアーチ断面のゴム壁４２で
構成してある。仕切板４は下半の外周縁が外方へ延び、
その下面にゴム膜３の外周縁が密着している。底板６は
平面部の径ｌ2 を充分に確保しており、このため、かし
めの深さｌ1 は浅くなっている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below focusing on differences from the prior art. The partition plate 4 which divides the inner space of the tubular side plate 2 into upper and lower portions has a central portion formed by a rubber wall 42 having an arch cross section. The lower peripheral edge of the partition plate 4 extends outward,
The outer peripheral edge of the rubber film 3 is in close contact with its lower surface. The bottom plate 6 has a sufficient diameter l2 of the flat portion, and therefore, the swaging depth l1 is small.
【００１１】上記ゴム膜３と底板６の間の空間には上方
へ開放する半容器状の中板５が配設してあり、該中板５
の開口縁フランジ５１が上記ゴム膜３の外周縁下面に充
分な一定長さＬで密着している。そして、ゴム膜３下方
の中板５空間内は密閉された空気室Ｃとなっている。In the space between the rubber film 3 and the bottom plate 6, a semi-container-shaped middle plate 5 which is opened upward is provided.
Is tightly adhered to the lower surface of the outer peripheral edge of the rubber film 3 with a sufficient constant length L. The space inside the middle plate 5 below the rubber film 3 is a sealed air chamber C.
【００１２】かかる構造によれば、底板６の平面部の径
ｌ2 が充分確保されているから、基体に底板６を充分な
安定性をもってボルト固定することができる。また、中
板５の開口縁フランジ５１が充分な長さＬでゴム膜３外
周縁に密着して仕切板４下面との間でこれを挟持してい
るから、液シール性も良好に保たれる。According to this structure, since the diameter l2 of the flat portion of the bottom plate 6 is sufficiently ensured, the bottom plate 6 can be bolted to the base with sufficient stability. Further, since the opening edge flange 51 of the middle plate 5 has a sufficient length L and is in close contact with the outer peripheral edge of the rubber film 3 and is sandwiched between the lower surface of the partition plate 4 and the liquid sealing property, the liquid sealing property is also kept good. It is.
【００１３】また、中板５の形状を変更することによ
り、用途に応じてゴム膜３背後の空気室Ｃの容積を調整
することができる。By changing the shape of the middle plate 5, the volume of the air chamber C behind the rubber film 3 can be adjusted according to the application.
【００１４】空気室Ｃの気密性は中板５により確保でき
るから、取付ボルト６１の貫通部周りの気密性を考慮す
る必要はなく、制作組付けが容易となる。Since the airtightness of the air chamber C can be ensured by the middle plate 5, it is not necessary to consider the airtightness around the penetrating portion of the mounting bolt 61, and the production and assembly becomes easy.
【００１５】[0015]
【発明の効果】以上の如く、本発明の防振装置によれ
ば、コンパクトな装置形状で、その取付安定性を確保で
きるとともにゴム膜の液シール性をも良好に維持するこ
とができる。As described above, according to the vibration damping device of the present invention, it is possible to secure the mounting stability of the device in a compact device shape and to maintain the liquid sealing property of the rubber film well.
【図１】本発明の装置の全体縦断面図である。FIG. 1 is an overall vertical sectional view of a device of the present invention.
【図２】従来装置の全体縦断面図である。FIG. 2 is an overall vertical sectional view of a conventional device.
１ ゴム弾性体壁 ２ 側板 ３ ゴム膜 ４ 仕切板 ４１ 絞り流路 ５ 中板 ５１ 開口縁フランジ ６ 底板 REFERENCE SIGNS LIST 1 rubber elastic body wall 2 side plate 3 rubber film 4 partition plate 41 throttle channel 5 middle plate 51 opening edge flange 6 bottom plate
───────────────────────────────────────────────────── フロントページの続き (72)発明者 斉藤 邦夫 愛知県豊田市トヨタ町１番地 トヨタ自 動車株式会社内 (72)発明者 山川 雅弘 愛知県豊田市トヨタ町１番地 トヨタ自 動車株式会社内 (56)参考文献 特開 平３−103636（ＪＰ，Ａ) 特開 昭61−294236（ＪＰ，Ａ) 特開 昭60−220238（ＪＰ，Ａ) 特開 昭58−37337（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) F16F 13/00 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kunio Saito 1 Toyota Town, Toyota City, Aichi Prefecture Inside Toyota Motor Corporation (72) Inventor Masahiro Yamakawa 1 Toyota Town, Toyota City, Aichi Prefecture Inside Toyota Motor Corporation ( 56) References JP-A-3-103636 (JP, A) JP-A-61-294236 (JP, A) JP-A-60-220238 (JP, A) JP-A-58-37337 (JP, A) (58) ) Surveyed field (Int.Cl. 6 , DB name) F16F 13/00
Claims (1)
器状のゴム弾性体壁と、該ゴム弾性体壁の開口縁に一端
が接合された筒状の側板と、側板の開口を閉鎖する薄肉
のゴム膜と、ゴム弾性体壁とゴム膜により密閉された空
間内を二分して上記ゴム弾性体壁を室壁とする主液室と
ゴム膜を室壁とする副液室とを形成する、絞り流路を設
けた仕切板とを具備する液封入防振装置において、上記
仕切板の外周下面に上記ゴム膜の外周縁を密着せしめる
とともに、ゴム膜の外周縁下面に密着し内方へ所定長さ
で延びる開口縁フランジを形成した半容器状の中板を設
け、これら仕切板、ゴム膜および中板の外周縁を、上方
へ開放する半容器状に成形した底板の開口縁に上記側板
の他端とともにかしめ固定したことを特徴とする液封入
防振装置。1. A rubber elastic body wall in the form of a thick semi-container supporting a vibrating body and opening downward, a cylindrical side plate having one end joined to an opening edge of the rubber elastic body wall, and an opening in the side plate. A thin rubber film to be closed, a main liquid chamber having a rubber elastic body wall and a rubber film as a chamber wall, and a sub liquid chamber having a rubber film as a chamber wall. Forming a diaphragm, and a partition plate provided with a throttle flow path, wherein the outer peripheral edge of the rubber film is brought into close contact with the outer peripheral lower surface of the partition plate, and the outer peripheral edge of the rubber film is adhered to the lower peripheral surface of the rubber film. A semi-container-shaped middle plate having an opening edge flange extending inward at a predetermined length is provided, and an outer periphery of the partition plate, the rubber film, and the middle plate is opened upward to form a semi-container-shaped bottom plate opening. A liquid filled vibration isolator, which is fixed to the edge together with the other end of the side plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17722491A JP2886366B2 (en) | 1991-06-21 | 1991-06-21 | Liquid filled vibration isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17722491A JP2886366B2 (en) | 1991-06-21 | 1991-06-21 | Liquid filled vibration isolator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH051740A JPH051740A (en) | 1993-01-08 |
| JP2886366B2 true JP2886366B2 (en) | 1999-04-26 |
Family
ID=16027328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17722491A Expired - Fee Related JP2886366B2 (en) | 1991-06-21 | 1991-06-21 | Liquid filled vibration isolator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2886366B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5524664B2 (en) * | 2010-03-18 | 2014-06-18 | 東洋ゴム工業株式会社 | Liquid-filled vibration isolator |
-
1991
- 1991-06-21 JP JP17722491A patent/JP2886366B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH051740A (en) | 1993-01-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |