JP2827868B2 - Fluid-filled mount and method of manufacturing fluid-filled mount - Google Patents
Fluid-filled mount and method of manufacturing fluid-filled mountInfo
- Publication number
- JP2827868B2 JP2827868B2 JP33195593A JP33195593A JP2827868B2 JP 2827868 B2 JP2827868 B2 JP 2827868B2 JP 33195593 A JP33195593 A JP 33195593A JP 33195593 A JP33195593 A JP 33195593A JP 2827868 B2 JP2827868 B2 JP 2827868B2
- Authority
- JP
- Japan
- Prior art keywords
- outer peripheral
- fluid
- fitting
- partition member
- mounting bracket
- 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
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Combined Devices Of Dampers And Springs (AREA)
Description
【0001】[0001]
【技術分野】本発明は、仕切部材を挟んだ両側に受圧室
と平衡室が形成されて、それら両室間でオリフィス通路
を通じて流動せしめられる流体の共振作用に基づいて防
振効果が発揮される流体封入式マウントと、そのような
流体封入式マウントの製造方法に関するものである。BACKGROUND OF THE INVENTION In the present invention, a pressure receiving chamber and an equilibrium chamber are formed on both sides of a partition member, and an anti-vibration effect is exerted on the basis of a resonance action of a fluid flowing between the two chambers through an orifice passage. Fluid-filled mounts and methods for manufacturing such fluid-filled mounts.
【0002】[0002]
【背景技術】振動伝達系を構成する部材間に介装されて
それらを防振連結する防振装置の一種として、従来か
ら、特開平4−262141号公報等に開示されている
ように、第一の取付金具が固着されたゴム弾性体によっ
て、円筒形状を呈する第二の取付金具の軸方向一方の開
口部を流体密に閉塞すると共に、第二の取付金具の軸方
向他方の開口部を可撓性膜によって流体密に閉塞せしめ
て第二の取付金具内に密閉された流体室を形成し、かか
る流体室を、第二の取付金具にて支持された仕切部材に
よって二分することにより、壁部の一部がゴム弾性体に
て構成された受圧室と、壁部の一部が可撓性膜にて構成
された平衡室を画成する一方、それら受圧室と平衡室を
相互に連通するオリフィス通路を仕切部材に形成してな
る構造の流体封入式マウントが知られている。このよう
なマウントにおいては、第一の取付金具と第二の取付金
具の間への振動入力時に、オリフィス通路を通じて受圧
室と平衡室の間で流動せしめられる流体の共振作用に基
づいて、所定の防振効果が発揮されることとなる。2. Description of the Related Art As one type of a vibration isolator which is interposed between members constituting a vibration transmission system and is connected by vibration isolation, as disclosed in Japanese Patent Laid-Open No. 4-262141 and the like, With the rubber elastic body to which the one mounting bracket is fixed, one axial opening of the second mounting bracket having a cylindrical shape is fluid-tightly closed, and the other axial opening of the second mounting bracket is closed. A fluid chamber closed in a fluid-tight manner by the flexible membrane to form a sealed fluid chamber in the second fitting, and the fluid chamber is divided into two by a partition member supported by the second fitting, While a part of the wall part defines a pressure receiving chamber composed of a rubber elastic body and a part of the wall part defines an equilibrium chamber composed of a flexible film, the pressure receiving chamber and the equilibrium chamber are mutually connected. Fluid-filled structure with a communicating orifice passage formed in the partition member Count is known. In such a mount, when vibration is input between the first fitting and the second fitting, a predetermined action is performed based on the resonance action of the fluid that flows between the pressure receiving chamber and the equilibrium chamber through the orifice passage. The anti-vibration effect will be exhibited.
【0003】ところで、オリフィス通路は仕切部材の内
部を貫通して形成する必要があることから、従来では、
前記公報にも開示されているように、一般に、仕切部材
を二枚の板材の重ね合わせ構造とし、それらの重ね合わ
せ面間にオリフィス通路が形成されていた。Incidentally, since the orifice passage needs to be formed through the inside of the partition member, conventionally,
As disclosed in the above publication, the partition member generally has a structure in which two plate members are overlapped, and an orifice passage is formed between the overlapping surfaces.
【0004】しかしながら、このようなオリフィス通路
の構造を採用すると、仕切部材の部品点数が多く、構造
が複雑となり易いという不具合があったのであり、特
に、広い周波数域の入力振動に対して有効な防振効果を
得るために、互いに異なるチューニングが施された複数
本のオリフィス通路を形成する場合等には、オリフィス
通路の形成が難しくなるという問題があった。However, when such a structure of the orifice passage is employed, there is a problem that the number of parts of the partition member is large and the structure is liable to be complicated. In particular, it is effective for input vibration in a wide frequency range. In the case where a plurality of orifice passages tuned differently from each other are formed in order to obtain an anti-vibration effect, there is a problem that it is difficult to form the orifice passage.
【0005】そこで、このような問題に対処するため
に、外周面に周溝が形成された仕切部材を第二の取付金
具内に挿入した後、第二の取付金具を絞り加工し、仕切
部材の外周面を第二の取付金具の内周面に密接させて周
溝を覆蓋することによってオリフィス通路を形成するこ
とが考えられる。このようなオリフィス構造を採用する
と、複数のオリフィス通路を形成する場合でも仕切部材
の構造の簡略化が有利に図られ得るのである。In order to cope with such a problem, a partition member having a circumferential groove formed on an outer peripheral surface is inserted into a second mounting member, and then the second mounting member is drawn to form a partition member. It is conceivable to form an orifice passage by bringing the outer peripheral surface of the second mounting member into close contact with the inner peripheral surface of the second mounting bracket to cover the peripheral groove. By adopting such an orifice structure, the structure of the partition member can be advantageously simplified even when a plurality of orifice passages are formed.
【0006】ところが、仕切部材を第二の取付金具に組
み付ける際には、一般に、平衡室への流体封入を容易と
するために流体中で組付作業が行われることとなり、し
かも、仕切部材の位置決めのために仕切部材の外周縁部
を第二の取付金具に形成された外フランジ状の支持部に
重ね合わせること等によって支持せしめると共に、可撓
性膜の膨出防止のために可撓性膜を外部から押圧して内
方に入り込ませた状態下で、第二の取付金具に対する絞
り加工が加えられることとなる。即ち、第二の取付金具
の開口部が仕切部材により閉塞されると共に、可撓性膜
の変形による内部の容積変化も阻止された状態下で、第
二の取付金具に対する絞り加工が加えられることから、
それによって第二の取付金具内に内圧が発生し、仕切部
材が押し出されて位置ずれを生じ易いという問題があっ
たのであり、そのような不具合を防止しつつ仕切部材の
組付作業を行うには、絞り加工を極低速で行わなければ
ならず、生産性が極めて悪いという問題を有していたの
である。However, when assembling the partition member to the second mounting member, generally, an assembling operation is performed in a fluid in order to facilitate the filling of the fluid into the equilibrium chamber. The outer peripheral edge of the partition member is overlapped with an outer flange-shaped support portion formed on the second mounting bracket for positioning, and is supported. While the film is pressed from the outside and enters the inside, a drawing process is performed on the second mounting member. That is, while the opening of the second mounting member is closed by the partition member and the internal volume change due to the deformation of the flexible film is also prevented, drawing processing is performed on the second mounting member. From
As a result, an internal pressure was generated in the second mounting bracket, and there was a problem that the partition member was easily pushed out and caused a positional deviation.Therefore, it was necessary to perform the assembling work of the partition member while preventing such a problem. However, there is a problem that the drawing process must be performed at an extremely low speed, and the productivity is extremely low.
【0007】[0007]
【解決課題】ここにおいて、本発明は、上述の如き事情
を背景として為されたものであって、その解決課題とす
るところは、所定の流体中で第二の取付金具を絞り加工
して仕切部材の外周面に密接させることにより、仕切部
材の外周面に形成された周溝を覆蓋せしめてオリフィス
通路を形成するに際して、第二の取付金具内における内
圧上昇が有利に軽減乃至は防止されて、仕切部材の位置
ずれ等が防止されると共に、生産性の向上が有利に達成
され得る流体封入式マウントおよび流体封入式マウント
の製造方法を提供することにある。Here, the present invention has been made in view of the above-mentioned circumstances, and a problem to be solved is to squeeze a second mounting member in a predetermined fluid to form a partition. By closely contacting the outer peripheral surface of the member, when the orifice passage is formed by covering the peripheral groove formed on the outer peripheral surface of the partition member, an increase in the internal pressure in the second mounting member is advantageously reduced or prevented. Another object of the present invention is to provide a fluid-filled mount and a method of manufacturing the fluid-filled mount that can prevent displacement of a partition member and the like and can advantageously improve productivity.
【0008】[0008]
【解決手段】そして、かかる課題を解決するために、本
発明の特徴とするところは、(a)防振連結される一方
の部材に取り付けられる第一の取付金具と、(b)全体
として円筒形状を有し、軸方向一方の開口部が可撓性膜
によって流体密に閉塞される一方、軸方向他方の開口部
に径方向外方に広がる支持部が設けられた、防振連結さ
れる他方の部材に取り付けられる第二の取付金具と、
(c)前記第一の取付金具が固着されると共に、外周面
に円筒状の連結金具が固着されて、該連結金具が前記第
二の取付金具における支持部側の開口部に固定されるこ
とにより、それら第一の取付金具と第二の取付金具を弾
性的に連結すると共に、該第二の取付金具の支持部側の
開口部を流体密に閉塞するゴム弾性体と、(d)外周縁
部において前記第二の取付金具の支持部に重ね合わさ
れ、該支持部と前記連結金具との間で挟圧支持されて、
前記ゴム弾性体と前記可撓性膜との間を流体密に二分す
ることにより、壁部の一部がゴム弾性体にて構成されて
内部に非圧縮性流体が封入された受圧室と、壁部の一部
が可撓性膜にて構成されて内部に非圧縮性流体が封入さ
れた平衡室とを、両側に画成する仕切部材と、(e)前
記仕切部材を貫通して延び、前記受圧室と前記平衡室を
相互に連通するオリフィス通路とを、含んで構成された
流体封入式マウントにおいて、前記第二の取付金具内に
入り込む嵌入部を前記仕切部材に一体的に設けると共
に、該嵌入部の外周面に周方向に延びる周溝を設けて、
該周溝を前記第二の取付金具の内周面にて覆蓋すること
により前記オリフィス通路を形成する一方、かかる仕切
部材における前記支持部に重ね合わされる外周縁部に、
該外周縁部の該支持部への重ね合わせ状態下で前記嵌入
部の外周面部を前記第二の取付金具の外部に連通し、且
つ該外周縁部の該支持部と前記連結金具との間での挟圧
支持状態下で連通が遮断される圧抜き路を設けたことに
ある。In order to solve the problem, the present invention is characterized by (a) a first mounting bracket which is mounted on one member to be vibration-isolated and connected, and (b) a cylinder as a whole. It has a shape, and one axial opening is fluid-tightly closed by a flexible membrane, while the other axial opening is provided with a support portion that spreads radially outward, and is vibration-proof connected. A second mounting bracket attached to the other member,
(C) The first mounting member is fixed, and a cylindrical connecting member is fixed to the outer peripheral surface, and the connecting member is fixed to the opening on the support portion side of the second mounting member. A rubber elastic body that elastically connects the first mounting bracket and the second mounting bracket and closes the opening of the second mounting bracket on the support portion side in a fluid-tight manner; The peripheral portion is superimposed on the supporting portion of the second mounting bracket, and is squeezed and supported between the supporting portion and the connecting bracket,
A pressure-receiving chamber in which a part of the wall is formed of a rubber elastic body and in which an incompressible fluid is sealed by dividing the rubber elastic body and the flexible membrane into fluid-tight halves, A partition member defining on both sides a equilibrium chamber in which a part of the wall is formed of a flexible membrane and in which an incompressible fluid is sealed, and (e) extending through the partition member An orifice passage for communicating the pressure receiving chamber and the equilibrium chamber with each other, in a fluid-filled mount configured to include a fitting portion that is inserted into the second mounting bracket, integrally with the partition member. Providing a circumferential groove extending in the circumferential direction on the outer peripheral surface of the fitting portion,
While forming the orifice passage by covering the peripheral groove with the inner peripheral surface of the second mounting bracket, the outer peripheral edge of the partition member that is superimposed on the support portion,
The outer peripheral surface of the fitting portion communicates with the outside of the second mounting bracket under a state in which the outer peripheral edge is superimposed on the support portion, and between the support portion of the outer peripheral edge and the connection bracket. A pressure release path is provided in which the communication is interrupted under the state of supporting the pressure.
【0009】また、本発明は、(a)防振連結される一
方の部材に取り付けられる第一の取付金具が固着される
と共に、外周面に円筒状の連結金具が固着されたゴム弾
性体を準備する工程と、(b)全体として円筒形状を有
し、軸方向一方の開口部が可撓性膜によって流体密に閉
塞される一方、軸方向他方の開口部に径方向外方に広が
る支持部が設けられた、防振連結される他方の部材に取
り付けられる第二の取付金具を準備する工程と、(c)
外周面に周方向に延びる周溝が設けられた嵌入部と、径
方向外方に延び出す外周縁部とを有する仕切部材を準備
する工程と、(d)該仕切部材の嵌入部を前記第二の取
付金具内に挿入位置せしめると共に、該仕切部材の外周
縁部を該第二の取付金具の支持部に重ね合わせ、且つ前
記可撓性膜を外部から押圧せしめて内方に入り込ませた
状態下で、所定の非圧縮性流体中において、かかる第二
の取付金具を絞り加工することにより、該第二の取付金
具の内周面を該嵌入部の外周面に密接させて前記周溝を
覆蓋する工程と、(e)前記所定の非圧縮性流体中にお
いて、前記第二の取付金具の支持部側に前記連結金具を
固定して該第二の取付金具の支持部側の開口部を前記ゴ
ム弾性体にて流体密に閉塞すると共に、それら第二の取
付金具の支持部と連結金具との間で前記仕切部材の外周
縁部を挟圧支持せしめる工程とを含んで、壁部の一部が
前記ゴム弾性体にて構成されて内部に非圧縮性流体が封
入された受圧室と、壁部の一部が前記可撓性膜にて構成
されて内部に非圧縮性流体が封入された平衡室が、前記
仕切部材を挟んだ両側にそれぞれ形成されると共に、前
記仕切部材の周溝によってそれら受圧室と平衡室を相互
に連通するオリフィス通路が形成されてなる流体封入式
マウントを製造するに際して、前記仕切部材の外周縁部
に、該外周縁部の前記支持部への重ね合わせ状態下で前
記嵌入部の外周面部を前記第二の取付金具の外部に連通
し、且つ該外周縁部の該支持部と前記連結金具との間で
の挟圧支持状態下で連通が遮断される圧抜き路を設け
て、前記第二の取付金具の絞り加工に際して該第二の取
付金具内に生ずる内圧を該圧抜き路を通じて逃がす流体
封入式マウントの製造方法をも、特徴とするものであ
る。The present invention also provides (a) a rubber elastic body having a first mounting member fixed to one member to be vibration-isolated and fixed and a cylindrical connecting member fixed to the outer peripheral surface. A step of preparing; and (b) a support having a cylindrical shape as a whole, and one opening in the axial direction is fluid-tightly closed by the flexible film, while the other opening in the axial direction extends radially outward. Providing a second mounting bracket provided with the portion and mounted on the other member to be vibration-proof connected; (c)
A step of preparing a partition member having a fitting portion provided with a circumferential groove extending in the circumferential direction on the outer peripheral surface, and a peripheral member extending radially outward; and (d) setting the fitting portion of the partition member to the first position. The partitioning member was inserted into the second mounting member, the outer peripheral edge of the partition member was overlapped with the supporting portion of the second mounting member, and the flexible film was pressed from the outside to enter the inside. Under the condition, in a predetermined incompressible fluid, by drawing the second mounting member, the inner peripheral surface of the second mounting member is brought into close contact with the outer peripheral surface of the fitting portion to thereby form the peripheral groove. (E) in the predetermined incompressible fluid, fixing the connection metal fitting to the support part side of the second mounting metal part, and opening the support part side of the second mounting metal part. Is closed in a fluid-tight manner by the rubber elastic body, and the supporting portions of the second mounting brackets are closed. Pressurizing and supporting an outer peripheral edge of the partition member with a metal fitting, wherein a part of a wall portion is formed of the rubber elastic body and an incompressible fluid is sealed therein. Chambers, and equilibrium chambers in which a part of a wall portion is formed of the flexible film and in which an incompressible fluid is sealed are formed on both sides of the partition member, respectively, and the partition member When manufacturing a fluid-filled mount in which an orifice passage that connects the pressure receiving chamber and the equilibrium chamber to each other is formed by the circumferential groove, the outer peripheral edge of the partition member is provided on the outer peripheral edge of the support member. Under the superimposed state, the outer peripheral surface of the fitting portion communicates with the outside of the second mounting bracket, and the communication is performed under the clamping support state between the supporting portion of the outer peripheral edge and the connecting bracket. Providing a pressure relief path to be cut off, for drawing of the second mounting bracket Also a method of manufacturing a fluid-filled mount to release the internal pressure generated within said second mounting member via the piezoelectric vent passage to and is characterized.
【0010】そして、かくの如き流体封入式マウントの
製造方法において、前記圧抜き路は、例えば、前記仕切
部材の外周縁部における前記第二の取付金具の支持部へ
の重ね合わせ面に形成された径方向に延びる凹溝によっ
て構成され得る。In the method for manufacturing a fluid-filled mount as described above, the pressure release path is formed, for example, on a surface of the outer peripheral edge of the partition member that overlaps the support of the second mounting member. May be constituted by concave grooves extending in the radial direction.
【0011】[0011]
【実施例】以下、本発明を更に具体的に明らかするため
に、本発明の実施例について、図面を参照しつつ、詳細
に説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, in order to clarify the present invention more specifically, embodiments of the present invention will be described in detail with reference to the drawings.
【0012】先ず、図1には、本発明の一実施例として
の自動車用エンジンマウント10が示されている。この
エンジンマウント10は、第一の取付金具12と第二の
取付金具14が、ゴム弾性体16によって弾性的に連結
されてなる構造とされている。そして、第一の取付金具
12がパワーユニット側に、第二の取付金具14が車体
側に、それぞれ取り付けられてそれらの間に介装される
ことにより、パワーユニットを車体に対して防振支持せ
しめるようになっている。FIG. 1 shows an engine mount 10 for an automobile according to an embodiment of the present invention. The engine mount 10 has a structure in which a first mounting member 12 and a second mounting member 14 are elastically connected by a rubber elastic body 16. Then, the first mounting bracket 12 is mounted on the power unit side and the second mounting bracket 14 is mounted on the vehicle body side and interposed therebetween, so that the power unit is supported on the vehicle body with vibration isolation. It has become.
【0013】以下、本実施例のエンジンマウント10の
構造をより具体的に明らかにするために、製造工程に従
って説明を加える。Hereinafter, in order to clarify the structure of the engine mount 10 of this embodiment more specifically, an explanation will be given according to the manufacturing process.
【0014】かかるエンジンマウント10を製造するに
際しては、先ず、ゴム弾性体16を製作する。このゴム
弾性体16は、全体として略円錐台形状を呈していると
共に、大径側端面に開口する凹部18を有している。ま
た、このゴム弾性体16の小径側端部には、第一の取付
金具12が加硫接着されている一方、大径側端部の外周
面には、円筒形状の連結金具20が加硫接着されてい
る。In manufacturing the engine mount 10, a rubber elastic body 16 is first manufactured. The rubber elastic body 16 has a substantially truncated conical shape as a whole, and has a concave portion 18 opened at the large-diameter end surface. A first mounting member 12 is vulcanized and bonded to the small-diameter end of the rubber elastic body 16, while a cylindrical connecting metal 20 is vulcanized to the outer peripheral surface of the large-diameter end. Glued.
【0015】なお、第一の取付金具12は、全体として
略円形ロッド形状を呈しており、下端部が逆円錐台状と
されてゴム弾性体16内に埋入されている一方、上端部
がゴム弾性体16から軸方向外方に突出せしめられて、
そこにボルト穴22と位置決め突起24が形成されてい
る。また、第一の取付金具12の軸方向中央部分には、
外方に広がる鍔状のストッパ部26が形成されていると
共に、該ストッパ部26の外面上に緩衝ゴム層28が設
けられている。The first mounting member 12 has a substantially circular rod shape as a whole, and has a lower end portion in the shape of an inverted truncated cone and is embedded in the rubber elastic body 16 while the upper end portion has an upper end. It is made to protrude outward from the rubber elastic body 16 in the axial direction,
A bolt hole 22 and a positioning protrusion 24 are formed there. Also, at the axial center portion of the first mounting bracket 12,
A flange-shaped stopper portion 26 extending outward is formed, and a cushioning rubber layer 28 is provided on the outer surface of the stopper portion 26.
【0016】また、かかるゴム弾性体16の一体加硫成
形品とは別途、第二の取付金具14を製作する。この第
二の取付金具14は、図2に仮想線で示されているよう
に、全体として円筒形状を呈しており、その軸方向下側
の開口部に薄肉のゴム膜30が固着されて、かかる開口
が流体密に閉塞されていると共に、内周面にシール材お
よび緩衝材としてのゴム層32が設けられている。ま
た、第二の取付金具14の軸方向上側の開口部には、径
方向外方に向かってフランジ状に広がる円環板状の支持
部33が一体的に形成されていると共に、この支持部3
3の外周縁部には、更に軸方向外方に突出する大径円筒
形状の嵌着筒部34が一体的に形成されている。なお、
嵌着筒部34は、軸方向外方に向かって拡開するテーパ
筒形状とされていると共に、内周面にシールゴム層36
が設けられている。A second mounting member 14 is manufactured separately from the integrally vulcanized molded product of the rubber elastic body 16. The second mounting member 14 has a cylindrical shape as a whole as shown by a virtual line in FIG. 2, and a thin rubber film 30 is fixed to an opening on the lower side in the axial direction. The opening is closed in a fluid-tight manner, and a rubber layer 32 as a sealing material and a cushioning material is provided on the inner peripheral surface. In addition, an annular plate-shaped support portion 33 that expands radially outward in a flange shape is integrally formed in an axially upper opening portion of the second mounting member 14. 3
A large-diameter cylindrical fitting cylinder portion 34 that protrudes further outward in the axial direction is integrally formed on the outer peripheral edge portion 3. In addition,
The fitting tube portion 34 has a tapered tube shape that expands outward in the axial direction, and has a seal rubber layer 36 on the inner peripheral surface.
Is provided.
【0017】更にまた、上述のゴム弾性体16および第
二の取付金具14とは別途、仕切部材38を製作する。
この仕切部材38は、図2に示されているように、略有
底円筒形状を呈する外側部材40と、略円板形状を呈す
る内側部材42を含んで構成されている。そこにおい
て、外側部材40には、その筒壁部の外周面に開口して
周方向に一周弱の長さで延び、周方向両端部がそれぞれ
軸方向各一方の側に開口せしめられた第一の周溝44が
形成されていると共に、開口側周縁部から径方向外方に
向かって広がる円環板状の外周縁部46が一体的に設け
られている。また、内側部材42には、外周面に開口し
て周方向に一周弱の長さで延び、周方向両端部がそれぞ
れ軸方向各一方の側に開口せしめられた第二の周溝48
が形成されている。Further, a partition member 38 is manufactured separately from the rubber elastic body 16 and the second mounting member 14 described above.
As shown in FIG. 2, the partition member 38 includes an outer member 40 having a substantially bottomed cylindrical shape and an inner member 42 having a substantially disk shape. In this case, the outer member 40 has a first opening which is opened on the outer peripheral surface of the cylindrical wall portion and extends in the circumferential direction by a length of less than one turn, and both ends in the circumferential direction are respectively opened on one side in the axial direction. And an annular outer peripheral edge 46 extending radially outward from the opening side peripheral edge is integrally provided. The inner member 42 has a second circumferential groove 48 which is opened on the outer peripheral surface and extends in the circumferential direction by a length of less than one round, and both ends in the circumferential direction are respectively opened on one side in the axial direction.
Are formed.
【0018】そして、内側部材42が外側部材40の内
部に嵌め込まれて固定されることによって、内側部材4
2に設けられた第二の周溝48が外側部材40の筒壁部
で覆蓋されており、以て、厚肉の円板形状を呈する嵌入
部50と外フランジ状に広がる外周縁部46とを備えた
仕切部材38が形成されている。また、この仕切部材3
8の内部には、外側部材40の底壁部と内側部材42と
の重ね合わせ面間に位置して、円板形状の可動ゴム膜5
2が外周縁部を挟圧保持されて、中央部分における所定
量の変形が許容され得る状態で収容配置されている。そ
して、この可動ゴム膜52で仕切られた一方の側が、内
側部材42に設けられた周溝48を通じて仕切部材38
の軸方向上方に連通されている一方、可動ゴム膜52で
仕切られた他方の側が、外側部材40の底壁部に設けら
れた複数の通孔54を通じて仕切部材38の軸方向下方
に連通されている。The inner member 42 is fitted and fixed inside the outer member 40, so that the inner member 4
The second peripheral groove 48 provided on the outer member 40 is covered with a cylindrical wall portion of the outer member 40, so that the fitting portion 50 having a thick disk shape and the outer peripheral portion 46 extending in an outer flange shape are provided. Is formed. Also, this partition member 3
8, a disk-shaped movable rubber film 5 is located between the overlapping surfaces of the bottom wall portion of the outer member 40 and the inner member 42.
2 is accommodated and arranged in such a manner that the outer peripheral edge portion is clamped and held and a predetermined amount of deformation in the central portion can be allowed. One side partitioned by the movable rubber film 52 is connected to the partition member 38 through a peripheral groove 48 provided in the inner member 42.
While the other side partitioned by the movable rubber film 52 communicates axially below the partition member 38 through a plurality of through holes 54 formed in the bottom wall of the outer member 40. ing.
【0019】ここにおいて、仕切部材38を構成する外
側部材40の外周縁部46は、図2に示されているよう
に、第二の取付金具14に形成された嵌着筒部34およ
びシールゴム層36の小径側端部の内径よりも僅かに小
さな外径寸法をもって形成されている。また、この外周
縁部46の軸方向下面56には、図3及び図4に示され
ているように、径方向に連続して延び、外周面に開口す
る凹溝58が、周方向に所定距離を隔てて複数個設けら
れている。Here, as shown in FIG. 2, the outer peripheral portion 46 of the outer member 40 constituting the partition member 38 has a fitting cylindrical portion 34 formed on the second mounting member 14 and a seal rubber layer. 36 are formed with an outer diameter slightly smaller than the inner diameter of the small diameter side end. As shown in FIGS. 3 and 4, a concave groove 58 extending continuously in the radial direction and opening on the outer peripheral surface is formed on the lower surface 56 in the axial direction of the outer peripheral edge portion 46 in the circumferential direction. A plurality is provided at a distance.
【0020】次いで、図2に示されているように、第二
の取付金具14と仕切部材38を所定の非圧縮性流体6
2中に浸漬せしめて、かかる流体62中で、或いは流体
中への浸漬前に、仕切部材38を第二の取付金具14内
に挿入する。それによって、仕切部材38の嵌入部50
を第二の取付金具14内に挿入位置せしめると共に、仕
切部材38の外周縁部46を第二の取付金具14の支持
部33上に載置して支持せしめる。なお、これにより、
第二の取付金具14の軸方向上側の開口部が仕切部材3
8によって閉塞された状態となるが、図2中に仮想線で
示されているように、かかる状態下、仕切部材38の外
周面と第二の取付金具14に形成されたゴム層32との
間には所定大きさの間隙が存在しており、この間隙が、
仕切部材38の外周縁部46に形成された凹溝58を通
じて、第二の取付金具14の外部に連通されている。Next, as shown in FIG. 2, the second mounting member 14 and the partition member 38 are connected to the predetermined incompressible fluid 6.
The partition member 38 is inserted into the second mounting member 14 in the fluid 62 or before the immersion in the fluid. Thereby, the fitting portion 50 of the partition member 38
Is inserted into the second mounting member 14, and the outer peripheral edge 46 of the partition member 38 is placed on the supporting portion 33 of the second mounting member 14 to be supported. By the way,
The opening above the second mounting bracket 14 in the axial direction is the partition member 3.
2, the outer peripheral surface of the partition member 38 and the rubber layer 32 formed on the second mounting member 14 under such a state, as indicated by a virtual line in FIG. There is a gap of a predetermined size between them, and this gap is
The partition member 38 communicates with the outside of the second mounting member 14 through a concave groove 58 formed in the outer peripheral edge 46.
【0021】続いて、第二の取付金具14の軸方向下側
の開口部から、球面状の押圧面を有する押え具60を挿
入してゴム膜30を外部から内方に押し込んで外方への
膨出変形を阻止せしめた後、第二の取付金具14に対し
て、八方絞り等の絞り加工を施す。それによって、図2
中に実線で示されているように、第二の取付金具14を
仕切部材38の外周面に圧接せしめて、仕切部材38に
形成された第一の周溝44を覆蓋する。Subsequently, a pressing member 60 having a spherical pressing surface is inserted from the axially lower opening of the second mounting member 14, and the rubber film 30 is pressed inward from the outside to move outward. After the swelling deformation is prevented, the second mounting member 14 is subjected to drawing such as octagonal drawing. As a result, FIG.
As shown by a solid line therein, the second mounting member 14 is pressed against the outer peripheral surface of the partition member 38 to cover the first peripheral groove 44 formed in the partition member 38.
【0022】なお、かかる第二の取付金具14に対する
絞り加工によって、第二の取付金具14内の容積が減少
することとなるが、第二の取付金具14内は、仕切部材
38の外周部と第二の取付金具14の間に形成された間
隙および仕切部材38の外周縁部46に形成された凹溝
58を通じて外部に連通されていることから、絞り加工
に伴って余剰となった流体が凹溝58を通じて外部に排
出されて、第二の取付金具14内における液圧上昇が速
やかに解消され得る。The volume of the inside of the second mounting member 14 is reduced by the drawing process on the second mounting member 14, but the inside of the second mounting member 14 is in contact with the outer peripheral portion of the partition member 38. Since the fluid is communicated to the outside through the gap formed between the second mounting members 14 and the concave groove 58 formed in the outer peripheral edge portion 46 of the partition member 38, excess fluid due to the drawing process is removed. The liquid is discharged to the outside through the concave groove 58, and the rise in the liquid pressure in the second mounting member 14 can be quickly eliminated.
【0023】そして、その後、流体62中において、第
二の取付金具14の嵌着筒部34に、ゴム弾性体16に
加硫接着された連結金具20を挿入し、仕切部材38の
外周縁部46上に重ね合わせて位置せしめる。続いて、
連結金具20を仕切部材38の外周縁部46上に押圧せ
しめた状態下で第二の取付金具14の嵌着筒部34に絞
り加工を施し、かかる嵌着筒部34を連結金具20の外
周面に嵌着固定する。Then, in the fluid 62, the connection fitting 20 vulcanized and bonded to the rubber elastic body 16 is inserted into the fitting cylinder 34 of the second mounting fitting 14, and the outer peripheral edge of the partition member 38 is inserted. Position it on top of 46. continue,
While the connection fitting 20 is pressed onto the outer peripheral edge 46 of the partition member 38, drawing is performed on the fitting cylinder 34 of the second mounting fitting 14, and the fitting cylinder 34 is attached to the outer periphery of the connection fitting 20. Fit to the surface.
【0024】それにより、仕切部材38の外周縁部46
を、第二の取付金具14の支持部33と連結金具20の
間で挟圧保持させて、第二の取付金具14に固定的に支
持せしめると共に、第二の取付金具14の軸方向上側の
開口部をゴム弾性体16によって流体密に閉塞せしめ
て、第二の取付金具14の内部に流体62を封入する。
また、第二の取付金具14の嵌着筒部34を連結金具2
0に外嵌固定し、それらの嵌着面間をシールゴム層36
によって流体密にシールすることにより、仕切部材38
の外周縁部46に形成された凹溝58の外周側開口を流
体密に閉塞せしめる。Thus, the outer peripheral edge 46 of the partition member 38
Is held between the support portion 33 of the second mounting member 14 and the connecting metal member 20 to be fixedly supported by the second mounting member 14, and the upper part of the second mounting member 14 in the axial direction is The opening is closed in a fluid-tight manner by the rubber elastic body 16, and the fluid 62 is sealed inside the second fitting 14.
Also, the fitting cylinder 34 of the second mounting fitting 14 is connected to the connecting fitting 2.
0, and a sealing rubber layer 36 is provided between their fitting surfaces.
The sealing member is fluid-tightly sealed by the partition member 38.
The outer peripheral side opening of the concave groove 58 formed in the outer peripheral edge portion 46 is fluid-tightly closed.
【0025】これによって、図1に示されているよう
に、壁部の一部がゴム弾性体16にて構成されると共
に、内部に所定の非圧縮性流体62が封入されて振動入
力時に内圧変動が生ぜしめられる受圧室64と、壁部の
一部がゴム膜30にて構成されると共に、内部に所定の
非圧縮性流体62が封入されて容積可変とされた平衡室
66が、仕切部材38を挟んだ両側に形成される。な
お、封入流体62としては、流体の共振作用に基づく防
振効果を有利に得るために、粘性率が0.1Pa・s以
下の低粘性流体を用いることが望ましく、例えば、水や
アルキレングリコール,ポリアルキレングリコール,シ
リコーン油等が好適に採用される。Thus, as shown in FIG. 1, a part of the wall is formed of the rubber elastic body 16 and a predetermined incompressible fluid 62 is sealed therein so that the internal pressure can be reduced during vibration input. A pressure receiving chamber 64 in which fluctuations occur, and a balancing chamber 66 in which a part of the wall is formed of the rubber film 30 and which has a variable volume with a predetermined incompressible fluid 62 sealed therein are partitioned. It is formed on both sides of the member 38. As the sealed fluid 62, it is desirable to use a low-viscosity fluid having a viscosity of 0.1 Pa · s or less in order to advantageously obtain a vibration damping effect based on the resonance action of the fluid. Polyalkylene glycol, silicone oil and the like are preferably employed.
【0026】また、仕切部材38には、第一の周溝44
および第二の周溝48によって、受圧室64と平衡室6
6を相互に連通する第一のオリフィス通路68および第
二のオリフィス通路70が形成される。そして、振動入
力時に、受圧室64と平衡室66の間に惹起される内圧
差に基づいて、これら第一及び第二のオリフィス通路6
8,70を通じての流体流動が生ぜしめられることによ
り、流体の共振作用に基づく防振効果が発揮されること
となる。なお、本実施例では、第一のオリフィス通路6
8を通じて流動せしめられる流体の共振作用に基づい
て、シェイク等の低周波振動に対する減衰効果が発揮さ
れる一方、第二のオリフィス通路70を通じて流動せし
められる流体の共振作用に基づいて、アイドリング振動
等の中乃至高周波振動に対する振動絶縁効果が発揮され
るように、各オリフィス通路68,70の長さや断面積
等がチューニングされていると共に、第二のオリフィス
通路70を通じて流動せしめられる流体量が、可動ゴム
膜52にて制限されるようになっている。The partition member 38 has a first peripheral groove 44.
And the second circumferential groove 48, the pressure receiving chamber 64 and the balance chamber 6
A first orifice passage 68 and a second orifice passage 70 are formed to communicate the second orifice 6 with each other. Then, at the time of vibration input, based on the internal pressure difference caused between the pressure receiving chamber 64 and the equilibrium chamber 66, these first and second orifice passages 6 are formed.
By generating the fluid flow through 8, 70, an anti-vibration effect based on the resonance action of the fluid is exhibited. In this embodiment, the first orifice passage 6
8, a damping effect against low-frequency vibration such as a shake is exerted on the basis of the resonance action of the fluid caused to flow through the second orifice passage 70, while idling vibration and the like are caused based on the resonance action of the fluid caused to flow through the second orifice passage 70. The length and cross-sectional area of each of the orifice passages 68 and 70 are tuned so that a vibration insulating effect against medium to high frequency vibrations is exerted. It is limited by the film 52.
【0027】従って、上述の如き製造方法に従えば、第
二の取付金具14を絞り加工する際の第二の取付金具1
4内における内圧上昇が有利に緩和乃至は防止されるの
であり、それ故、仕切部材38の第二の取付金具14に
対する優れた位置決め精度と良好なる製造作業性が有利
に確保され得るのであり、目的とするエンジンマウント
10を安定して且つ優れた製作性をもって製造すること
が可能となるのである。Therefore, according to the manufacturing method as described above, the second mounting member 1 when drawing the second mounting member 14 is drawn.
4 is advantageously reduced or prevented, and therefore, excellent positioning accuracy of the partition member 38 with respect to the second mounting member 14 and good manufacturing workability can be advantageously secured. This makes it possible to manufacture the target engine mount 10 stably and with excellent manufacturability.
【0028】そして、このような製造方法に従えば、仕
切部材38の外周面に設けられた周溝を第二の取付金具
14にて覆蓋することによってオリフィス通路を有利に
形成することが可能となることから、オリフィス部材の
構造の簡略化も有利に図られ得るのである。具体的に
は、本実施例の如く、二つのオリフィス通路68,70
を形成する場合にも、二つの部材40,42の組み合わ
せによって仕切部材38を構成することが可能となり、
また、一つのオリフィス通路を形成する場合には、単一
の部材によって仕切部材を構成することが可能となるの
である。According to such a manufacturing method, the orifice passage can be advantageously formed by covering the peripheral groove provided on the outer peripheral surface of the partition member 38 with the second mounting member 14. Therefore, the structure of the orifice member can be advantageously simplified. Specifically, as in the present embodiment, two orifice passages 68, 70
Is formed, the partition member 38 can be configured by a combination of the two members 40 and 42,
When one orifice passage is formed, the partition member can be constituted by a single member.
【0029】以上、本発明の実施例について詳述してき
たが、これは文字通りの例示であって、本発明は、かか
る具体例にのみ限定して解釈されるものではない。Although the embodiment of the present invention has been described in detail, this is a literal example, and the present invention is not construed as being limited to such a specific example.
【0030】例えば、前記実施例では、仕切部材38に
二つのオリフィス通路68,70が形成されていたが、
仕切部材の外周面に設けられた周溝によって形成された
オリフィス通路の一つのみ、或いはそのようなオリフィ
ス通路を含む三つ以上のオリフィス通路が形成されてな
る仕切部材を備えた流体封入式マウントおよびその製造
に対しても、本発明は、有利に適用され得る。For example, in the above embodiment, two orifice passages 68 and 70 are formed in the partition member 38.
Fluid-filled mount including a partition member having only one orifice passage formed by a peripheral groove provided on the outer peripheral surface of the partition member, or three or more orifice passages including such an orifice passage The present invention can also be advantageously applied to and its manufacture.
【0031】また、仕切部材の外周面を周方向に一周以
上の長さで螺旋状形態をもって延びる周溝等によって、
オリフィス通路を形成することも可能である。Further, a peripheral groove or the like extending in a helical form with a length of at least one circumference in the circumferential direction on the outer peripheral surface of the partition member,
It is also possible to form an orifice passage.
【0032】更にまた、前記実施例では、第二の取付金
具14における嵌着筒部34の連結金具20への嵌着固
定によって、連結金具20が第二の取付金具14に固定
されていたが、連結金具の第二の取付金具に対する固定
構造は限定されるものではなく、例えば、連結金具を第
二の取付金具に対して軸方向に挟圧固定したり、かしめ
固定すること等も可能であり、第二の取付金具14の嵌
着筒部34は必ずしも必要ではない。Further, in the above-described embodiment, the connecting fitting 20 is fixed to the second fitting 14 by fitting the fitting cylinder portion 34 of the second fitting 14 to the connecting fitting 20. The fixing structure of the connecting metal to the second mounting metal is not limited, and for example, the connecting metal can be axially pinched and fixed to the second mounting metal, or caulked and fixed. The fitting tube portion 34 of the second mounting member 14 is not always necessary.
【0033】さらに、仕切部材38の外周縁部46に設
けられる凹溝58は、少なくとも一つ以上であれば良
く、その数や大きさ等は限定されるものでない。また、
そのような凹溝58によって圧抜き路を構成する他、外
周縁部46を軸方向に貫通して延びる通孔や、外周縁部
46の外周縁部から径方向内方に延びる径方向の切欠き
等によって、圧抜き路を構成することも可能である。Further, the number of the concave grooves 58 provided on the outer peripheral edge portion 46 of the partition member 38 may be at least one, and the number and size thereof are not limited. Also,
In addition to forming a depressurizing path by such a concave groove 58, a through hole extending through the outer peripheral edge 46 in the axial direction, and a radial cut extending radially inward from the outer peripheral edge of the outer peripheral edge 46. It is also possible to form a pressure relief path by notch or the like.
【0034】また、圧抜き路は、仕切部材の外周縁部が
支持部と連結金具の間で挟圧保持された状態下で、仕切
部材の外周面部の外部空間への連通が遮断されるよう
に、換言すれば、受圧室64および平衡室66の圧抜き
路を通じての液漏れが防止されるようになっていれば良
い。従って、前記実施例のように、凹溝58の平衡室6
6側の開口部が第二の取付金具14の絞り加工によって
閉塞される場合には、かかる凹溝58の外部空間への連
通が遮断されていれば良く、凹溝58が受圧室64側に
連通されたままでも良い。Further, the pressure release path is configured such that the communication of the outer peripheral surface of the partition member to the external space is interrupted in a state where the outer peripheral edge of the partition member is clamped and held between the support portion and the connection fitting. In other words, it suffices if liquid leakage through the pressure release passage between the pressure receiving chamber 64 and the equilibrium chamber 66 is prevented. Therefore, as in the above embodiment, the equilibrium chamber 6 of the concave groove 58 is formed.
When the opening on the sixth side is closed by drawing of the second mounting member 14, it is sufficient that the communication of the concave groove 58 to the external space is interrupted, and the concave groove 58 faces the pressure receiving chamber 64. It may be left connected.
【0035】加えて、本発明は、例示の自動車用エンジ
ンマウントの他、自動車用ボデーマウントやメンバマウ
ント等、或いは自動車以外に用いられる各種の流体封入
式マウントおよび流体封入式マウントの製造方法に対し
て適用され得ることは、勿論である。In addition, the present invention is directed to an automotive engine mount, an automotive body mount, a member mount, and the like, or various fluid-filled mounts used for non-vehicles and a method of manufacturing the fluid-filled mount. Of course, it can be applied.
【0036】その他、一々列挙はしないが、本発明は、
当業者の知識に基づいて、種々なる変更,修正,改良等
を加えた態様において実施され得るものであり、また、
そのような実施態様が、本発明の趣旨を逸脱しない限
り、何れも、本発明の範囲内に含まれるものであること
は、言うまでもないところである。In addition, although not enumerated one by one, the present invention
Based on the knowledge of those skilled in the art, the present invention can be implemented in a form in which various changes, modifications, improvements, and the like are made.
It goes without saying that all such embodiments are included within the scope of the present invention, without departing from the spirit of the present invention.
【0037】[0037]
【発明の効果】上述の説明から明らかなように、本発明
に従えば、第二の取付金具の絞り加工に伴って余剰とな
る封入流体が圧抜き路を通じて速やかに外部に排出され
ることから、第二の取付金具内に生ぜしめられる内圧上
昇が有利に緩和乃至は防止されて、第二の取付金具に対
して位置決めされた仕切部材に及ぼされる圧力が効果的
に軽減され得る。As is apparent from the above description, according to the present invention, the surplus sealed fluid accompanying the drawing work of the second mounting member is quickly discharged to the outside through the pressure release passage. The internal pressure build-up created in the second fitting is advantageously reduced or prevented, so that the pressure exerted on the partition positioned relative to the second fitting can be effectively reduced.
【0038】それ故、仕切部材の外周面に設けられた周
溝を第二の取付金具で覆蓋することによってオリフィス
通路が形成された、構造簡略な流体封入式マウントを、
仕切部材の第二の取付金具に対する優れた位置決め精度
を確保しつつ、良好なる作業性をもって有利に製造する
ことができるのである。Therefore, a fluid-filled mount having a simple structure in which an orifice passage is formed by covering a peripheral groove provided on the outer peripheral surface of the partition member with a second mounting member,
The partition member can be advantageously manufactured with good workability while ensuring excellent positioning accuracy with respect to the second mounting member.
【図1】本発明の一実施例としてのエンジンマウントを
示す縦断面説明図である。FIG. 1 is an explanatory longitudinal sectional view showing an engine mount as one embodiment of the present invention.
【図2】図1に示されたエンジンマウントを本発明方法
に従って製造する場合の一製造工程を説明するための縦
断面説明図である。FIG. 2 is an explanatory longitudinal sectional view for explaining one manufacturing process when the engine mount shown in FIG. 1 is manufactured according to the method of the present invention.
【図3】図1に示されたエンジンマウントを構成する仕
切部材の要部を拡大して示す断面説明図である。FIG. 3 is an enlarged sectional explanatory view showing a main part of a partition member constituting the engine mount shown in FIG. 1;
【図4】図3におけるIV−IV矢視図である。4 is a view taken in the direction of arrows IV-IV in FIG. 3;
10 エンジンマウント 12 第一の取付金具 14 第二の取付金具 16 ゴム弾性体 20 連結金具 30 ゴム膜 33 支持部 34 嵌着筒部 36 シールゴム層 38 仕切部材 40 外側部材 42 内側部材 44 第一の周溝 46 外周縁部 48 第二の周溝 50 嵌入部 52 可動ゴム膜 56 下面 58 凹溝 60 押え具 62 非圧縮性流体 64 受圧室 66 平衡室 68 第一のオリフィス通路 70 第二のオリフィス通路 DESCRIPTION OF SYMBOLS 10 Engine mount 12 1st mounting bracket 14 2nd mounting bracket 16 Rubber elastic body 20 Connecting bracket 30 Rubber film 33 Support part 34 Fitting cylinder part 36 Seal rubber layer 38 Partition member 40 Outer member 42 Inner member 44 First circumference Groove 46 Outer peripheral edge 48 Second peripheral groove 50 Fitting portion 52 Movable rubber film 56 Lower surface 58 Depressed groove 60 Presser 62 Incompressible fluid 64 Pressure receiving chamber 66 Equilibrium chamber 68 First orifice passage 70 Second orifice passage
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6,DB名) F16F 13/00──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. 6 , DB name) F16F 13/00
Claims (3)
付けられる第一の取付金具と、(b)全体として円筒形
状を有し、軸方向一方の開口部が可撓性膜によって流体
密に閉塞される一方、軸方向他方の開口部に径方向外方
に広がる支持部が設けられた、防振連結される他方の部
材に取り付けられる第二の取付金具と、(c)前記第一
の取付金具が固着されると共に、外周面に円筒状の連結
金具が固着されて、該連結金具が前記第二の取付金具に
おける支持部側の開口部に固定されることにより、それ
ら第一の取付金具と第二の取付金具を弾性的に連結する
と共に、該第二の取付金具の支持部側の開口部を流体密
に閉塞するゴム弾性体と、(d)外周縁部において前記
第二の取付金具の支持部に重ね合わされ、該支持部と前
記連結金具との間で挟圧支持されて、前記ゴム弾性体と
前記可撓性膜との間を流体密に二分することにより、壁
部の一部がゴム弾性体にて構成されて内部に非圧縮性流
体が封入された受圧室と、壁部の一部が可撓性膜にて構
成されて内部に非圧縮性流体が封入された平衡室とを、
両側に画成する仕切部材と、(e)前記仕切部材を貫通
して延び、前記受圧室と前記平衡室を相互に連通するオ
リフィス通路とを、含んで構成された流体封入式マウン
トにおいて、 前記第二の取付金具内に入り込む嵌入部を前記仕切部材
に一体的に設けると共に、該嵌入部の外周面に周方向に
延びる周溝を設けて、該周溝を前記第二の取付金具の内
周面にて覆蓋することにより前記オリフィス通路を形成
する一方、かかる仕切部材における前記支持部に重ね合
わされる外周縁部に、該外周縁部の該支持部への重ね合
わせ状態下で前記嵌入部の外周面部を前記第二の取付金
具の外部に連通し、且つ該外周縁部の該支持部と前記連
結金具との間での挟圧支持状態下で連通が遮断される圧
抜き路を設けたことを特徴とする流体封入式マウント。(A) a first mounting bracket which is mounted on one member to be vibration-isolated and connected; (b) a cylindrical shape as a whole, and one opening in the axial direction is formed of a fluid by a flexible film. A second mounting bracket attached to the other member to be vibration-isolated, wherein the second mounting member is closed tightly and provided with a support portion extending radially outward at the other opening in the axial direction; The first fitting is fixed, and a cylindrical connecting fitting is fixed to the outer peripheral surface, and the connecting fitting is fixed to the opening of the second mounting fitting on the support portion side. A rubber elastic body that elastically connects the mounting bracket of the second mounting bracket and the second mounting bracket, and closes the opening of the second mounting bracket on the support portion side in a fluid-tight manner; Superimposed on the supporting portion of the second mounting bracket, and between the supporting portion and the connecting bracket. It is nip-supported and fluid-tightly divides the rubber elastic body and the flexible membrane into two parts, so that a part of the wall is made of a rubber elastic body and an incompressible fluid is sealed inside. The pressure receiving chamber and the equilibrium chamber in which a part of the wall is formed of a flexible film and in which an incompressible fluid is sealed,
A fluid-filled mount comprising: a partition member defined on both sides; and (e) an orifice passage extending through the partition member and interconnecting the pressure receiving chamber and the balancing chamber. A fitting portion that enters into the second mounting bracket is provided integrally with the partition member, and a circumferential groove extending in the circumferential direction is provided on an outer peripheral surface of the fitting portion, and the circumferential groove is formed inside the second mounting bracket. The orifice passage is formed by covering the peripheral surface with the cover, and the fitting portion is formed on an outer peripheral edge of the partition member, which is overlapped with the support portion, in a state where the outer peripheral edge is overlapped with the support portion. And a pressure release path that communicates with the outer peripheral surface of the second mounting bracket outside the second mounting bracket, and in which the communication is interrupted under a pressure supporting state between the supporting portion of the outer peripheral edge and the connecting bracket. A fluid-filled mount, characterized in that:
付けられる第一の取付金具が固着されると共に、外周面
に円筒状の連結金具が固着されたゴム弾性体を準備する
工程と、(b)全体として円筒形状を有し、軸方向一方
の開口部が可撓性膜によって流体密に閉塞される一方、
軸方向他方の開口部に径方向外方に広がる支持部が設け
られた、防振連結される他方の部材に取り付けられる第
二の取付金具を準備する工程と、(c)外周面に周方向
に延びる周溝が設けられた嵌入部と、径方向外方に延び
出す外周縁部とを有する仕切部材を準備する工程と、
(d)該仕切部材の嵌入部を前記第二の取付金具内に挿
入位置せしめると共に、該仕切部材の外周縁部を該第二
の取付金具の支持部に重ね合わせ、且つ前記可撓性膜を
外部から押圧せしめて内方に入り込ませた状態下で、所
定の非圧縮性流体中において、かかる第二の取付金具を
絞り加工することにより、該第二の取付金具の内周面を
該嵌入部の外周面に密接させて前記周溝を覆蓋する工程
と、(e)前記所定の非圧縮性流体中において、前記第
二の取付金具の支持部側に前記連結金具を固定して該第
二の取付金具の支持部側の開口部を前記ゴム弾性体にて
流体密に閉塞すると共に、それら第二の取付金具の支持
部と連結金具との間で前記仕切部材の外周縁部を挟圧支
持せしめる工程とを含んで、壁部の一部が前記ゴム弾性
体にて構成されて内部に非圧縮性流体が封入された受圧
室と、壁部の一部が前記可撓性膜にて構成されて内部に
非圧縮性流体が封入された平衡室が、前記仕切部材を挟
んだ両側にそれぞれ形成されると共に、前記仕切部材の
周溝によってそれら受圧室と平衡室を相互に連通するオ
リフィス通路が形成されてなる流体封入式マウントを製
造するに際して、 前記仕切部材の外周縁部に、該外周縁部の前記支持部へ
の重ね合わせ状態下で前記嵌入部の外周面部を前記第二
の取付金具の外部に連通し、且つ該外周縁部の該支持部
と前記連結金具との間での挟圧支持状態下で連通が遮断
される圧抜き路を設けて、前記第二の取付金具の絞り加
工に際して該第二の取付金具内に生ずる内圧を該圧抜き
路を通じて逃がすことを特徴とする流体封入式マウント
の製造方法。(A) a step of preparing a rubber elastic body having a first mounting member fixed to one member to be vibration-isolated and fixed and a cylindrical connecting member fixed to an outer peripheral surface; , (B) has a cylindrical shape as a whole, and one opening in the axial direction is fluid-tightly closed by a flexible membrane,
A step of preparing a second mounting bracket provided with a support portion extending radially outward in the other opening in the axial direction and mounted on the other member to be vibration-isolated; and (c) a circumferential direction on the outer peripheral surface. A step of preparing a partition member having a fitting portion provided with a circumferential groove extending in the outer peripheral edge portion extending outward in the radial direction;
(D) The fitting portion of the partition member is inserted into the second mounting member, the outer peripheral edge of the partition member is overlapped with the supporting portion of the second mounting member, and the flexible film is provided. Under a state of being pressed from the outside and entering the inside, in a predetermined incompressible fluid, by drawing the second fitting, the inner peripheral surface of the second fitting is removed. (E) in the predetermined incompressible fluid, fixing the connection fitting to the supporting portion side of the second mounting fitting in a step of covering the peripheral groove by closely contacting the outer peripheral surface of the fitting portion; The opening on the supporting portion side of the second mounting member is closed in a fluid-tight manner by the rubber elastic body, and the outer peripheral edge of the partition member is provided between the supporting portion of the second mounting member and the connecting member. Including a step of clamping and supporting, wherein a part of the wall portion is formed of the rubber elastic body. A pressure receiving chamber in which an incompressible fluid is sealed in a portion, and an equilibrium chamber in which a part of a wall portion is formed of the flexible film and in which an incompressible fluid is sealed sandwich the partition member. When manufacturing a fluid-filled mount formed on both sides and having an orifice passage communicating the pressure receiving chamber and the equilibrium chamber with each other by the circumferential groove of the partition member, the outer peripheral edge of the partition member The outer peripheral surface of the fitting portion communicates with the outside of the second mounting bracket in a state where the outer peripheral edge is superimposed on the support portion, and the outer peripheral portion is connected to the supporting portion and the connecting bracket. A pressure release path is provided in which communication is interrupted under a sandwiching pressure support state between the pressure release path and the internal pressure generated in the second mounting bracket during drawing of the second mounting bracket is released through the pressure release path. Characteristic method of manufacturing a fluid-filled mount.
二の取付金具の支持部への重ね合わせ面に形成された径
方向に延びる凹溝によって、前記圧抜き路が構成されて
いる請求項2に記載の流体封入式マウントの製造方法。3. The pressure relief path is formed by a radially extending groove formed on a surface of the outer peripheral edge of the partition member that overlaps the support of the second mounting member. 3. The method for manufacturing a fluid-filled mount according to 2.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP33195593A JP2827868B2 (en) | 1993-12-27 | 1993-12-27 | Fluid-filled mount and method of manufacturing fluid-filled mount |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP33195593A JP2827868B2 (en) | 1993-12-27 | 1993-12-27 | Fluid-filled mount and method of manufacturing fluid-filled mount |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH07190130A JPH07190130A (en) | 1995-07-28 |
JP2827868B2 true JP2827868B2 (en) | 1998-11-25 |
Family
ID=18249514
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP33195593A Expired - Fee Related JP2827868B2 (en) | 1993-12-27 | 1993-12-27 | Fluid-filled mount and method of manufacturing fluid-filled mount |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2827868B2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4128731B2 (en) * | 2000-09-07 | 2008-07-30 | 東洋ゴム工業株式会社 | Engine mount |
JP3989482B2 (en) * | 2004-11-04 | 2007-10-10 | 本田技研工業株式会社 | Vibration isolator |
JP6297371B2 (en) * | 2014-03-17 | 2018-03-20 | 住友理工株式会社 | Method for manufacturing fluid-filled vibration isolator |
-
1993
- 1993-12-27 JP JP33195593A patent/JP2827868B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH07190130A (en) | 1995-07-28 |
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