JPH09222148A - Liquid sealing type mount - Google Patents

Liquid sealing type mount

Info

Publication number
JPH09222148A
JPH09222148A JP5264096A JP5264096A JPH09222148A JP H09222148 A JPH09222148 A JP H09222148A JP 5264096 A JP5264096 A JP 5264096A JP 5264096 A JP5264096 A JP 5264096A JP H09222148 A JPH09222148 A JP H09222148A
Authority
JP
Japan
Prior art keywords
liquid
hole
diaphragm
negative pressure
valve body
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.)
Granted
Application number
JP5264096A
Other languages
Japanese (ja)
Other versions
JP3678253B2 (en
Inventor
Kazuto Daino
一登 大能
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nok Megulastik Co Ltd
Original Assignee
Nok Megulastik Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nok Megulastik Co Ltd filed Critical Nok Megulastik Co Ltd
Priority to JP5264096A priority Critical patent/JP3678253B2/en
Publication of JPH09222148A publication Critical patent/JPH09222148A/en
Application granted granted Critical
Publication of JP3678253B2 publication Critical patent/JP3678253B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To provide a liquid sealing type mount having a center boss, wherein it is not necessary to provide a hole in the center boss or a steel ball is pressed into this hole while pulling out pressure during injection of work liquid. SOLUTION: A valve element part 28 for switching the opening and closing of an orifice 26 provided in the inner peripheral part of a diaphragm 10 is provided with a hole 43 utilized as a hole for pulling out pressure during the injection of work liquid 15 by liquid caulking and connecting the valve element part 28 having a rivet 44 inserted thereinto after the injection of the work liquid 15 and the operation part 39 of a diaphragm 35 for a negative pressure actuator.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、自動車または産業
機械等において、防振装置ないし防振支持装置として用
いられる液体封入式マウントに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid-filled mount used as an anti-vibration device or anti-vibration support device in automobiles or industrial machines.

【0002】[0002]

【従来の技術】図4に示すように、液体封入式マウント
の内部には、入力振動に対して減衰作用を奏すべく粘性
流体等の作動液51が封入されており、この作動液51
は、容器等に満たされた作動液51の中で液体封入式マ
ウントを組み立てることによって、すなわち所謂液中カ
シメを実施することによって、反対にその一部が液体封
入式マウントの内部に封入される。また封入後における
液体封入式マウントの内圧が高くなり過ぎることがない
ように、一方の取付部のセンターボス52に内部気密空
間53の内外を連通させる圧力抜き用の孔54が設けら
れており、この孔54から圧力を逃がしながら液中で液
体封入式マウントを組み立て、組立後、孔54に鋼球5
5を圧入して、孔54を閉塞している(カバー56は後
付け、実公平3−51539号公報参照)。
2. Description of the Related Art As shown in FIG. 4, a hydraulic fluid 51 such as a viscous fluid is enclosed in a liquid-filled mount to dampen input vibrations.
On the contrary, by assembling the liquid-filled mount in the hydraulic fluid 51 filled in the container or the like, that is, by performing so-called submerged caulking, on the contrary, a part of the liquid-filled mount is sealed inside the liquid-filled mount. . Further, in order to prevent the internal pressure of the liquid-filled mount from becoming too high after the filling, the center boss 52 of the one mounting portion is provided with a pressure releasing hole 54 for communicating the inside and outside of the internal airtight space 53, Assembling the liquid-filled mount in the liquid while releasing the pressure from the hole 54, and after assembling, mount the steel ball 5 in the hole 54.
5 is press-fitted to close the hole 54 (cover 56 is attached later, see Japanese Utility Model Publication No. 3-51539).

【0003】したがって上記従来の液体封入式マウント
によると、センターボス52に孔54が設けられている
ために、センターボス52の大きさ(特に外径寸法d
1 )が大きくならざるを得ず、よってセンターボス52
を小型化ないし軽量化することができない問題がある。
またセンターボス52に孔54が設けられていると、こ
の分、センターボス52の形状が複雑であるために、製
造コストが高い問題がある。尚、液体封入式マウントの
内圧が高過ぎると、特に中高周波域での絶対ばね定数が
上昇して振動低減効果が減少してしまうために、この内
圧は是非ともこれを下げなければならない。
Therefore, according to the conventional liquid-filled mount described above, since the center boss 52 has the hole 54, the size of the center boss 52 (especially, the outer diameter dimension d).
1 ) is inevitably large, so the center boss 52
There is a problem in that it cannot be made smaller or lighter.
Further, if the center boss 52 is provided with the hole 54, the shape of the center boss 52 is complicated by that much, which causes a problem of high manufacturing cost. It should be noted that if the internal pressure of the liquid-filled mount is too high, the absolute spring constant increases, especially in the middle and high frequency regions, and the vibration reducing effect decreases, so this internal pressure must be lowered.

【0004】[0004]

【発明が解決しようとする課題】本発明は以上の点に鑑
み、上記従来技術と同様に作動液の封入時に圧力抜き作
用を奏しながら、センターボスに孔を設けたり、この孔
に鋼球を圧入したりする必要がない液体封入式マウント
を提供することを目的とする。
In view of the above points, the present invention provides a hole in the center boss or a steel ball in the hole while exerting a pressure releasing action when the working fluid is filled as in the prior art. An object is to provide a liquid-filled mount that does not need to be press-fitted.

【0005】[0005]

【課題を解決するための手段】上記目的を達成するた
め、本発明の請求項1による液体封入式マウントは、セ
ンターボスを備えた一方の取付部にゴム状弾性材製の弾
性体を介して他方の取付部を接続し、前記他方の取付部
の内側にダイアフラムを配置して気密空間を設け、前記
気密空間を仕切部によって複数の液室に仕切り、前記複
数の液室を第一および第二オリフィスを介して互いに連
通させ、前記ダイアフラムの内周部に前記第二オリフィ
スの開閉を切り換える弁体部を設け、前記弁体部を切換
作動させる負圧アクチュエータを設け、前記負圧アクチ
ュエータが負圧アクチュエータ用ダイアフラムを備えて
いる液体封入式マウントであって、前記弁体部に孔を設
けて、この孔を液中カシメによる作動液の封入時に圧力
抜き孔として利用し、前記作動液の封入後に、前記孔お
よび前記負圧アクチュエータ用ダイアフラムの作動部に
設けられた孔にリベットを差し込んで、前記弁体部と前
記作動部とを互いに連結することにした。
In order to achieve the above object, in a liquid-filled mount according to claim 1 of the present invention, an elastic body made of a rubber-like elastic material is interposed in one mounting portion having a center boss. The other mounting portion is connected, a diaphragm is arranged inside the other mounting portion to provide an airtight space, the airtight space is partitioned into a plurality of liquid chambers by a partitioning portion, and the plurality of liquid chambers are divided into first and second liquid chambers. A valve body part which communicates with each other through two orifices, and which switches the opening and closing of the second orifice is provided on the inner peripheral part of the diaphragm, and a negative pressure actuator for switching the valve body part is provided. A liquid-filled mount having a diaphragm for a pressure actuator, wherein a hole is formed in the valve body, and this hole is used as a pressure relief hole when the working fluid is filled by caulking in the liquid. After inclusion of the working fluid, by inserting the rivet into a hole provided in the operation portion of the hole and the negative pressure actuator diaphragm, and in that connecting to the valve body portion and the actuating portion to each other.

【0006】また本発明の請求項2による液体封入式マ
ウントは、センターボスを備えた液体封入式マウントに
おいて、ダイアフラムの内周部に設けられたオリフィス
開閉切換用の弁体部に、液中カシメによる作動液の封入
時に圧力抜き孔として利用されるとともに、前記作動液
の封入後にリベットが差し込まれて前記弁体部と負圧ア
クチュエータ用ダイアフラムの作動部とを互いに連結さ
せる孔が設けられていることにした。
A liquid-filled mount according to a second aspect of the present invention is a liquid-filled mount provided with a center boss, in which a valve body portion for switching the opening and closing of an orifice provided on an inner peripheral portion of a diaphragm is caulked in liquid. Is used as a pressure relief hole when the working fluid is filled with the working fluid, and a rivet is inserted after the working fluid is filled in so as to connect the valve body portion and the working portion of the negative pressure actuator diaphragm to each other. It was to be.

【0007】[0007]

【作用】上記構成を備えた本発明の請求項1または2に
よる液体封入式マウントにおいては、上記従来技術にお
けるセンターボスに代えて、ダイアフラムの内周部に設
けられたオリフィス開閉切換用の弁体部に孔が設けられ
ていて、この孔が液中カシメによる作動液の封入時に圧
力抜き孔として作用するために、この孔から圧力を逃が
しながら液中で液体封入式マウントを組み立てることが
可能である。したがって圧力抜き作用を確保することが
でき、その上でセンターボスに孔を設けたり、孔に鋼球
を圧入したりのを省略することができる。
In the liquid-filled mount according to claim 1 or 2 of the present invention having the above-mentioned structure, the valve body for switching the opening and closing of the orifice provided in the inner peripheral portion of the diaphragm, instead of the center boss in the above-mentioned prior art. Since a hole is provided in the part, and this hole acts as a pressure release hole when filling the hydraulic fluid by caulking in the liquid, it is possible to assemble the liquid filled mount in the liquid while releasing the pressure from this hole. is there. Therefore, the pressure releasing action can be secured, and it is possible to omit forming the hole in the center boss and pressing the steel ball into the hole.

【0008】[0008]

【発明の実施の形態】弁体部と作動部とを互いに連結さ
せるリベットには、その装着作業が液中カシメ後に行な
われるために、作動部に対してその一面側からこれを装
着することができるように、ワンウェイのシールリベッ
トを用いるのが好適である。
BEST MODE FOR CARRYING OUT THE INVENTION A rivet for connecting a valve body portion and an operating portion to each other can be attached to the operating portion from one surface side thereof, because the setting work is performed after caulking in liquid. As possible, it is preferred to use one-way seal rivets.

【0009】[0009]

【実施例】つぎに本発明の実施例を図面にしたがって説
明する。尚、この実施例は本願の請求項1に係る発明お
よび請求項2に係る発明についての共通の実施例であ
る。
Next, an embodiment of the present invention will be described with reference to the drawings. It should be noted that this embodiment is a common embodiment for the invention according to claim 1 and the invention according to claim 2.

【0010】図1に示すように、センターボス2、取付
ボルト3およびカバー4を備えた一方の取付部1と、そ
れぞれ環状を呈する第一ないし第三ケース6,7,8を
備えた他方の取付部5とがゴム状弾性材製の弾性体(ゴ
ム脚部とも称する)9を介して接続されており、他方の
取付部5の内側(第三ケース8の内周側)にゴム状弾性
材製のダイアフラム10がその外周縁部をもって接続さ
れ、これらに囲まれて当該マウントの内部に気密空間1
1が設けられ、この気密空間11が、他方の取付部5の
内側(第三ケース8の内周側)に配置された仕切部(仕
切板またはオリフィス部材とも称する)12によって、
一方の取付部1側(上側)の第一液室(主液室とも称す
る)13と、ダイアフラム10側(下側)の第二液室
(副液室とも称する)14とに仕切られ、両室13,1
4に粘性流体等の作動液(内封液とも称する)15が封
入されている。ゴム状弾性材製の弾性体9は、その成形
時にセンターボス2および第一ケース6に対してそれぞ
れ加硫接着されており、またこの第一ケース6が仕切部
12、ダイアフラム10、後記する負圧アクチュエータ
用第一ケース32および第二ケース7とともに、それぞ
れの外周縁部をもって第三ケース8にカシメ固定されて
いる(このカシメが液中カシメによって行なわれる)。
またカバー4の端部の上下面にゴムストッパ16が設け
られるとともに第三ケース8にストッパ17がゴムスト
ッパ16の上側に回り込むように設けられており、この
両ストッパ16,17またはゴムストッパ16と第一ケ
ース6とにより、両取付部1,5の相対変位を所定量ま
でに制限し、弾性体9が過度に弾性変形するのを防止す
るストッパ構造が設けられている。センターボス2に上
記従来技術における圧力抜き用の孔は設けられていな
い。
As shown in FIG. 1, one mounting portion 1 provided with a center boss 2, a mounting bolt 3 and a cover 4 and the other provided with first to third cases 6, 7 and 8 each having an annular shape. The attachment portion 5 is connected via an elastic body (also referred to as a rubber leg portion) 9 made of a rubber-like elastic material, and the rubber-like elasticity is provided inside the other attachment portion 5 (the inner peripheral side of the third case 8). A diaphragm 10 made of material is connected with its outer peripheral edge portion, surrounded by these, and an airtight space 1 is provided inside the mount.
1 is provided, and this airtight space 11 is provided by a partition portion (also referred to as a partition plate or an orifice member) 12 arranged inside the other mounting portion 5 (on the inner peripheral side of the third case 8).
It is partitioned into a first liquid chamber (also referred to as a main liquid chamber) 13 on one mounting portion 1 side (upper side) and a second liquid chamber (also referred to as a sub liquid chamber) 14 on the diaphragm 10 side (lower side). Chamber 13, 1
A working fluid (also referred to as an internal sealing fluid) 15 such as a viscous fluid is enclosed in the container 4. The elastic body 9 made of a rubber-like elastic material is vulcanized and adhered to the center boss 2 and the first case 6 at the time of molding, and the first case 6 has a partition 12, a diaphragm 10, and a negative part which will be described later. The first case 32 for the pressure actuator and the second case 7 are caulked to the third case 8 with their respective outer peripheral edge portions (this caulking is performed by submerged caulking).
Further, a rubber stopper 16 is provided on the upper and lower surfaces of the end portion of the cover 4, and a stopper 17 is provided on the third case 8 so as to wrap around the upper side of the rubber stopper 16. With the first case 6, a stopper structure is provided which limits the relative displacement of both the mounting portions 1 and 5 to a predetermined amount and prevents the elastic body 9 from being elastically deformed excessively. The center boss 2 is not provided with the pressure relief hole in the above-mentioned conventional technique.

【0011】仕切部12に接する弾性体9の下面に凹部
21が設けられ、第一ケース6の円周上一箇所に切欠部
22が凹部21と連通するように設けられ、仕切部12
に透孔(図示せず)が凹部21と連通するように設けら
れ、これらによって第一および第二液室13,14を互
いに連通させる第一オリフィス23が設けられている。
凹部21は溝状であって、かつ所定の角度に亙って環状
(平面円弧形または平面C字形)に形成されており、こ
れによって第一オリフィス23が比較的細くて長い低周
波大振幅振動用のオリフィスとして設けられている。ま
た略円盤状を呈する板金製の仕切部12の中央に円筒部
24が下向きに一体成形され、円筒部24の下端部にテ
ーパ状のフランジ部(弁座部とも称する)25が斜め下
向きに一体成形され、これらの内周側に孔状の第二オリ
フィス26が第一および第二液室13,14を互いに連
通させるように設けられている。この第二オリフィス2
6は、オリフィス切換弁27が開いたときにオリフィス
作動するもので、比較的太くて短い中周波中振幅振動用
または高周波小振幅振動用のオリフィスとして設けられ
ている。オリフィス切換弁27はダイアフラム10の内
周部中央に設けられて弁体部28を備えており、この弁
体部28が、略円盤状を呈する金属または樹脂等剛材製
の保形部材29と、この保形部材29の上面に加硫接着
されてフランジ部25の内周面に接離自在に当接する環
状を呈するゴム状弾性材製のシール部30とを備えてい
る。シール部30はダイアフラム10に対して一体に成
形されている。
A recess 21 is provided on the lower surface of the elastic body 9 in contact with the partition 12, and a notch 22 is provided at one location on the circumference of the first case 6 so as to communicate with the recess 21.
A through hole (not shown) is provided so as to communicate with the recess 21, and a first orifice 23 is provided for communicating the first and second liquid chambers 13 and 14 with each other.
The recess 21 has a groove shape and is formed in an annular shape (planar arc shape or plane C shape) over a predetermined angle, whereby the first orifice 23 is relatively thin and long and has a low frequency and large amplitude. It is provided as an orifice for vibration. Further, a cylindrical portion 24 is integrally formed downward in the center of the partition 12 made of a sheet metal having a substantially disc shape, and a tapered flange portion (also referred to as a valve seat portion) 25 is integrated obliquely downward at the lower end of the cylindrical portion 24. A second orifice 26, which is molded and has a hole shape, is provided on the inner peripheral side of the first and second liquid chambers 13 and 14 so as to communicate with each other. This second orifice 2
6 is an orifice that operates when the orifice switching valve 27 is opened, and is provided as an orifice for medium frequency medium amplitude vibration or high frequency small amplitude vibration that is relatively thick and short. The orifice switching valve 27 is provided in the center of the inner peripheral portion of the diaphragm 10 and includes a valve body portion 28. The valve body portion 28 is provided with a shape-retaining member 29 made of a rigid material such as metal or resin having a substantially disc shape. The shape-retaining member 29 is provided with a seal portion 30 made of a rubber-like elastic material, which is vulcanized and adhered to the upper surface of the shape-retaining member 29 and has an annular shape that comes into contact with the inner peripheral surface of the flange portion 25 so as to come into contact with and separate from the inner peripheral surface of the flange portion 25. The seal portion 30 is formed integrally with the diaphragm 10.

【0012】第二ケース7の内周側であってダイアフラ
ム10の下側に、負圧アクチュエータ用第一ないし第三
ケース32,33,34、ゴム状弾性材製の負圧アクチ
ュエータ用ダイアフラム35、負圧ポート36、負圧室
37および戻しスプリング38を備えた負圧アクチュエ
ータ31が設けられており、負圧アクチュエータ用ダイ
アフラム35の内周部に、板金等剛材製のスプリングリ
テーナ(インナーケースとも称する)40およびゴムス
トッパ41を備えた作動部(ストローク作動部とも称す
る)39が設けられ、この作動部39のスプリングリテ
ーナ40と上記した弁体部28の保形部材29とに孔4
2,43が設けられ、この孔42,43にリベット44
が差し込まれて、スプリングリテーナ40と保形部材2
9、すなわち弁体部28と作動部39とが互いに連結さ
れている。
On the inner peripheral side of the second case 7 and below the diaphragm 10, the first to third cases 32, 33, 34 for the negative pressure actuator, the diaphragm 35 for the negative pressure actuator made of a rubber-like elastic material, A negative pressure actuator 31 having a negative pressure port 36, a negative pressure chamber 37, and a return spring 38 is provided, and a spring retainer made of a rigid material such as sheet metal (both inner case and inner case is provided on the inner peripheral portion of the diaphragm 35 for the negative pressure actuator. 40) and a rubber stopper 41, and an operating portion (also referred to as a stroke operating portion) 39 is provided. The spring retainer 40 of the operating portion 39 and the shape retaining member 29 of the valve body portion 28 have a hole 4
2, 43 are provided, and rivets 44 are provided in these holes 42, 43.
The spring retainer 40 and the shape-retaining member 2 are inserted.
9, that is, the valve body portion 28 and the operating portion 39 are connected to each other.

【0013】リベット44はワンウェイのシールリベッ
トであって、以下のようなものである。すなわち、図2
(A)に示すように、このリベット44は、筒状部46
の軸方向一端部に鍔部47を設けたリベット本体45
と、このリベット本体45に摺動自在に差し込まれたシ
ャフト48とを備えており、シャフト48の軸方向他端
部に略球状を呈する大径部49が設けられ、その直ぐ内
側にシャフト48の外周の一部を切り欠いて小径部(切
断箇所特定部)50が設けられている。符号51および
52で示した二つの部材に孔53,54が設けられてい
て、この二つの部材51,52を互いに連結する場合、
上記リベット44が以下のように組み付けられる。すな
わち、先ず同図(B)に示すように、右側の部材52に
鍔部47が当接するまで孔53,54に筒状部46を差
し込み、次いで同図(C)に示すように、チャック機能
を備えた治具55によってシャフト48をチャックす
る。次いで治具55によってシャフト48を右方向に強
く引っ張ると、同図(D)に示すように、大径部49が
筒状部46の内周側に入り込んで筒状部46の軸方向他
端部を拡大変形させ、更にシャフト48を引っ張ると、
シャフト48が小径部50から切断されて、小径部50
より右側の部分がリベット本体45から引き抜かれる。
したがって拡大された筒状部46の軸方向他端部と鍔部
47との間に二部材51,52を挾み込む結果となり、
これにより二部材51,52を互いに連結することがで
きる。作業は二部材51,52の右側のみから行なわ
れ、図1で言うと、これがマウントの下側からとなる。
The rivet 44 is a one-way seal rivet and is as follows. That is, FIG.
As shown in (A), the rivet 44 has a tubular portion 46.
Rivet body 45 having a collar 47 at one axial end of the
And a shaft 48 slidably inserted into the rivet body 45. A large diameter portion 49 having a substantially spherical shape is provided at the other end of the shaft 48 in the axial direction, and the large diameter portion 49 is provided immediately inside the shaft 48. A small diameter portion (cutting portion specifying portion) 50 is provided by cutting out a part of the outer circumference. When the two members 51 and 52 are provided with the holes 53 and 54 and the two members 51 and 52 are connected to each other,
The rivet 44 is assembled as follows. That is, first, as shown in FIG. 7B, the tubular portion 46 is inserted into the holes 53 and 54 until the collar portion 47 contacts the right member 52, and then, as shown in FIG. The shaft 48 is chucked by the jig 55 provided with. Next, when the shaft 48 is strongly pulled rightward by the jig 55, the large diameter portion 49 enters the inner peripheral side of the tubular portion 46 and the other end of the tubular portion 46 in the axial direction is pulled, as shown in FIG. When the part is expanded and deformed and the shaft 48 is further pulled,
When the shaft 48 is cut from the small diameter portion 50,
The portion on the right side is pulled out from the rivet body 45.
Therefore, the two members 51 and 52 are sandwiched between the collar 47 and the other axial end of the enlarged tubular portion 46,
This allows the two members 51, 52 to be connected to each other. The work is performed only from the right side of the two members 51 and 52, and in FIG. 1, this is from the lower side of the mount.

【0014】上記液体封入式マウントを製造するに際し
て気密空間11に作動液15を封入する作業は、液中カ
シメによってこれを行なう。すなわち、第一ケース6、
仕切部12、ダイアフラム10、負圧アクチュエータ用
第一ケース32および第二ケース7を第三ケース8によ
ってカシメ固定するに際して、このカシメを容器等に満
たされた作動液15の中で行ない、このカシメの終了と
同時に作動液15の封入を終了し、このカシメないし作
動液15の封入を、マウントの内圧が高くなり過ぎるこ
とがないように、リベット44未装着の状態で行なう。
すなわち、カシメ作業が進行して気密空間11が気密化
されると、この気密空間11に封入された作動液15の
一部が高圧を解消すべく、弁体部28の保形部材29に
設けられた孔43から中間室56に溢れ出し、ダイアフ
ラムと負圧アクチュエータ用ダイアフラムの間のこの中
間室56の周壁(負圧アクチュエータ用第一ケース3
2)に設けられた通気孔(図示せず、この通気孔は中間
室56を常時大気圧に維持するために設けられている)
を介してマウントの外部へ溢れ出す。またこのような通
気孔が無い場合には、中間室56に溢れ出した作動液1
5が作動部39のスプリングリテーナ40に設けられた
孔42から負圧室37および負圧ポート36を介して外
部へ溢れ出し、したがって何れにしろマウントの内圧が
高くなり過ぎることがないように、気密空間11からマ
ウントの外部へ通じる圧力抜き流路が設定されているた
めに、マウントの内圧を適度の大きさに設定することが
できる。
The operation of filling the working fluid 15 into the airtight space 11 when manufacturing the liquid-filled mount is performed by submerged caulking. That is, the first case 6,
When the partition 12, the diaphragm 10, the first case 32 for the negative pressure actuator and the second case 7 are caulked and fixed by the third case 8, the caulking is performed in the hydraulic fluid 15 filled in the container and the caulking is performed. At the same time as the above, the filling of the working fluid 15 is completed, and the caulking or the filling of the working fluid 15 is performed without mounting the rivet 44 so that the internal pressure of the mount does not become too high.
That is, when the caulking work progresses and the airtight space 11 is made airtight, a part of the hydraulic fluid 15 sealed in the airtight space 11 is provided on the shape-retaining member 29 of the valve body portion 28 in order to eliminate the high pressure. The peripheral wall of the intermediate chamber 56 between the diaphragm and the diaphragm for the negative pressure actuator (the first case 3 for the negative pressure actuator 3) overflows from the hole 43 to the intermediate chamber 56.
2) Ventilation hole (not shown, this ventilation hole is provided to maintain the intermediate chamber 56 at atmospheric pressure at all times)
Through the mount to the outside of the mount. If there is no such vent hole, the hydraulic fluid 1 overflowing into the intermediate chamber 56
5 does not overflow to the outside from the hole 42 provided in the spring retainer 40 of the operating portion 39 through the negative pressure chamber 37 and the negative pressure port 36, and therefore the internal pressure of the mount does not become too high anyway. Since the pressure relief flow path leading from the airtight space 11 to the outside of the mount is set, the internal pressure of the mount can be set to an appropriate size.

【0015】上記構成を備えた液体封入式マウントは、
例えば一方の取付部1を自動車のエンジン側に接続する
とともに他方の取付部5を車体側に接続してエンジンを
防振支持するもので、以下のように作動する。
The liquid-filled mount having the above structure is
For example, one mounting portion 1 is connected to the engine side of the automobile and the other mounting portion 5 is connected to the vehicle body side to support the engine in a vibration-proof manner, and operates as follows.

【0016】すなわち、先ず図1は、負圧アクチュエー
タ31の負圧室37に所定の大きさの負圧が導入されて
おらず(負圧アクチュエータOFF)、負圧アクチュエ
ータ用ダイアフラム35の作動部39、弁体部28およ
びリベット44が戻しスプリング38の弾性によって持
ち上げられて作動ストロークの上端限に位置した状態を
示している。この状態においては、弁体部28のシール
部30が第二オリフィス26の下側開口周縁部(フラン
ジ部25の内周面)に当接して第二オリフィス26を閉
塞している。したがって常時開の第一オリフィス23の
みがオリフィス作動可能状態となっており、これにより
低周波大振幅の振動が有効に吸収抑制される。
That is, first, in FIG. 1, the negative pressure of a predetermined magnitude is not introduced into the negative pressure chamber 37 of the negative pressure actuator 31 (negative pressure actuator OFF), and the operating portion 39 of the diaphragm 35 for the negative pressure actuator. , The valve body 28 and the rivet 44 are lifted by the elasticity of the return spring 38 and positioned at the upper end of the operating stroke. In this state, the seal portion 30 of the valve body portion 28 abuts the lower opening peripheral edge portion (the inner peripheral surface of the flange portion 25) of the second orifice 26 to close the second orifice 26. Therefore, only the first orifice 23, which is normally open, is in a state in which the orifice can be operated, so that the vibration of low frequency and large amplitude is effectively absorbed and suppressed.

【0017】またこの状態から、負圧アクチュエータ3
1の負圧室37に所定の大きさの負圧が導入されると
(負圧アクチュエータON)、負圧アクチュエータ用ダ
イアフラム35の作動部39、弁体部28およびリベッ
ト44が戻しスプリング38の弾性に抗して下降し、図
3に示すように、弁体部28のシール部30が第二オリ
フィス26の下側開口周縁部(フランジ部25の内周
面)から離れる。したがってこの第二オリフィス26と
常時開の第一オリフィス23とが共にオリフィス作動可
能状態となり、これにより高周波小振幅の振動または中
周波中振幅の振動と低周波大振幅の振動とがそれぞれ有
効に吸収抑制される。
From this state, the negative pressure actuator 3
When a negative pressure of a predetermined magnitude is introduced into the negative pressure chamber 37 of No. 1 (negative pressure actuator ON), the operating portion 39 of the diaphragm 35 for the negative pressure actuator, the valve body portion 28, and the rivet 44 are elasticized by the return spring 38. 3, the seal portion 30 of the valve body portion 28 separates from the lower opening peripheral edge portion of the second orifice 26 (the inner peripheral surface of the flange portion 25) as shown in FIG. Therefore, both the second orifice 26 and the normally-open first orifice 23 are in a state in which the orifices can be operated, whereby high-frequency small-amplitude vibration or medium-frequency medium-amplitude vibration and low-frequency large-amplitude vibration are effectively absorbed. Suppressed.

【0018】また上記したように当該マウントを製造す
るに際しては、容器等に満たされた作動液15の中で当
該マウントを組み立て、すなわち液中カシメを実施する
ことによって、作動液15の一部を当該マウントの内部
に封入し、この液中カシメによる作動液15の封入をリ
ベット44未装着の状態で行なう。したがってリベット
44挿入用の孔43から圧力を逃がしながら作動液15
を封入することができ、これにより封入後における当該
マウントの内圧が高くなり過ぎるのを未然に防止するこ
とができる。
When manufacturing the mount as described above, the mount is assembled in the working fluid 15 filled in the container or the like, that is, caulking in the solution is performed, so that part of the working fluid 15 is removed. The mount is sealed inside the mount, and the working fluid 15 is sealed by caulking in the mount without mounting the rivet 44. Therefore, the hydraulic fluid 15 is released while releasing the pressure from the hole 43 for inserting the rivet 44.
It is possible to prevent the internal pressure of the mount from becoming too high after sealing.

【0019】上記構成を備えた液体封入式マウントは、
以下の効果を奏する。 センターボス2に上記従来技術における圧力抜き用
の孔が設けられていないために、センターボス2の大き
さ(特に外径寸法d2 )を従来より小さくすることがで
きる。したがってセンターボス2を小型化ないし軽量化
し、コンパクトな製品を提供することができる。 同じ理由からセンターボス2の形状が単純化される
ために、製造コストを低減させることができる。 センターボス2に圧力抜き用の孔が設けられていな
くても、同じ作用を奏する孔43が弁体部28の保形部
材29に設けられているために、作動液15の封入後に
おけるマウントの内圧が高くなり過ぎるのを未然に防止
することができる。したがって上記従来技術に劣らぬ防
振性能を発揮するマウント製品を提供することができ
る。 ダイアフラム10の内周部に設けられたオリフィス
開閉切換用の弁体部28と、この弁体部28を切換作動
させる負圧アクチュエータ31の負圧アクチュエータ用
ダイアフラム35の作動部39とは、その機能からして
必ず互いに連結されるものであり、この両者28,39
を連結するリベット挿入用の一方または双方の孔42,
43を圧力抜き孔として利用することにしたために、上
記従来技術のように圧力抜き専用の孔を設ける必要がな
い。したがってこれによってもコンパクトなマウント製
品を提供することができる。
The liquid-filled mount having the above structure is
The following effects are obtained. Since the center boss 2 is not provided with the pressure relief hole in the above-mentioned conventional technique, the size of the center boss 2 (in particular, the outer diameter dimension d 2 ) can be made smaller than the conventional one. Therefore, the center boss 2 can be reduced in size or weight and a compact product can be provided. For the same reason, since the shape of the center boss 2 is simplified, the manufacturing cost can be reduced. Even if the center boss 2 is not provided with a pressure relief hole, the hole 43 having the same function is provided in the shape-retaining member 29 of the valve body portion 28. It is possible to prevent the internal pressure from becoming too high. Therefore, it is possible to provide a mount product exhibiting vibration damping performance comparable to that of the above-mentioned conventional technique. The function of the valve body portion 28 provided on the inner peripheral portion of the diaphragm 10 for switching the opening and closing of the orifice, and the operating portion 39 of the negative pressure actuator diaphragm 35 of the negative pressure actuator 31 for switching the valve body portion 28 is performed. They are always connected to each other.
One or both holes 42 for inserting rivets for connecting
Since 43 is used as a pressure relief hole, it is not necessary to provide a dedicated pressure relief hole as in the above-described conventional technique. Therefore, this can also provide a compact mount product.

【0020】[0020]

【発明の効果】上記構成を備えた本発明の請求項1また
は2による液体封入式マウントは、以下の効果を奏す
る。
The liquid-filled mount according to claim 1 or 2 of the present invention having the above-described structure has the following effects.

【0021】 センターボスに上記従来技術における
圧力抜き用の孔が設けられていないために、センターボ
スの大きさ(特に外径寸法)を従来より小さくすること
ができる。したがってセンターボスを小型化ないし軽量
化し、コンパクトな製品を提供することができる。 同じ理由からセンターボスの形状が単純化されるた
めに、製造コストを低減させることができる。 センターボスに圧力抜き用の孔が設けられていなく
ても、同じ作用を奏する孔が弁体部に設けられているた
めに、作動液の封入後におけるマウントの内圧が高くな
り過ぎるのを未然に防止することができる。したがって
上記従来技術に劣らぬ防振性能を発揮するマウント製品
を提供することができる。 ダイアフラムの内周部に設けられたオリフィス開閉
切換用の弁体部と、この弁体部を切換作動させる負圧ア
クチュエータの負圧アクチュエータ用ダイアフラムの作
動部とは、その機能からして必ず互いに連結されるもの
であり、この両者を連結するリベット挿入用の孔を圧力
抜き孔として利用することにしたために、上記従来技術
のように圧力抜き専用の孔を設ける必要がない。したが
ってこれによってもコンパクトなマウント製品を提供す
ることができる。
Since the center boss is not provided with the pressure relief hole in the above conventional technique, the size of the center boss (in particular, the outer diameter dimension) can be made smaller than before. Therefore, the center boss can be reduced in size or weight, and a compact product can be provided. For the same reason, the manufacturing cost can be reduced because the shape of the center boss is simplified. Even if the center boss is not provided with a pressure relief hole, the valve body is provided with a hole that performs the same function, so the internal pressure of the mount does not become too high after the hydraulic fluid is filled. Can be prevented. Therefore, it is possible to provide a mount product exhibiting vibration damping performance comparable to that of the above-mentioned conventional technique. The valve body part for switching the opening and closing of the orifice provided on the inner peripheral part of the diaphragm and the operating part of the diaphragm for the negative pressure actuator of the negative pressure actuator for switching the valve body part are always connected to each other due to their functions. However, since the rivet insertion hole connecting the two is used as a pressure relief hole, it is not necessary to provide a dedicated pressure relief hole as in the prior art. Therefore, this can also provide a compact mount product.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の実施例に係る液体封入式マウントの断
面図
FIG. 1 is a sectional view of a liquid-filled mount according to an embodiment of the present invention.

【図2】リベットの説明図FIG. 2 is an explanatory view of rivets.

【図3】同実施例に係る液体封入式マウントの作動状態
を示す断面図
FIG. 3 is a sectional view showing an operating state of the liquid-filled mount according to the embodiment.

【図4】従来例に係る液体封入式マウントの断面図FIG. 4 is a cross-sectional view of a liquid-filled mount according to a conventional example.

【符号の説明】[Explanation of symbols]

1 一方の取付部 2 センターボス 3 取付ボルト 4 カバー 5 他方の取付部 6,7,8 ケース 9 弾性体 10 ダイアフラム 11 気密空間 12 仕切部 13,14 液室 15 作動液 16,41 ゴムストッパ 17 ストッパ 21 凹部 22 切欠部 23 第一オリフィス 24 円筒部 25 フランジ部 26 第二オリフィス 27 オリフィス切換弁 28 弁体部 29 保形部材 30 シール部 31 負圧アクチュエータ 32,33,34 負圧アクチュエータ用ケース 35 負圧アクチュエータ用ダイアフラム 36 負圧ポート 37 負圧室 38 戻しスプリング 39 作動部 40 スプリングリテーナ 42,43 孔 44 リベット 46 筒状部 47 鍔部 48 シャフト 49 大径部 50 小径部 56 中間室 1 One mounting part 2 Center boss 3 Mounting bolt 4 Cover 5 Other mounting part 6,7,8 Case 9 Elastic body 10 Diaphragm 11 Airtight space 12 Partition part 13,14 Liquid chamber 15 Working fluid 16,41 Rubber stopper 17 Stopper Reference Signs List 21 recessed portion 22 notched portion 23 first orifice 24 cylindrical portion 25 flange portion 26 second orifice 27 orifice switching valve 28 valve body portion 29 shape retention member 30 seal portion 31 negative pressure actuator 32, 33, 34 negative pressure actuator case 35 negative Diaphragm for pressure actuator 36 Negative pressure port 37 Negative pressure chamber 38 Return spring 39 Operating part 40 Spring retainer 42, 43 hole 44 Rivet 46 Cylindrical part 47 Collar part 48 Shaft 49 Large diameter part 50 Small diameter part 56 Intermediate chamber

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 センターボス(2)を備えた一方の取付
部(1)にゴム状弾性材製の弾性体(9)を介して他方
の取付部(5)を接続し、前記他方の取付部(5)の内
側にダイアフラム(10)を配置して気密空間(11)
を設け、前記気密空間(11)を仕切部(12)によっ
て複数の液室(13)(14)に仕切り、前記複数の液
室(13)(14)を第一および第二オリフィス(2
3)(26)を介して互いに連通させ、前記ダイアフラ
ム(10)の内周部に前記第二オリフィス(26)の開
閉を切り換える弁体部(28)を設け、前記弁体部(2
8)を切換作動させる負圧アクチュエータ(31)を設
け、前記負圧アクチュエータ(31)が負圧アクチュエ
ータ用ダイアフラム(35)を備えている液体封入式マ
ウントであって、 前記弁体部(28)に孔(43)を設けて、この孔(4
3)を液中カシメによる作動液(15)の封入時に圧力
抜き孔として利用し、 前記作動液(15)の封入後に、前記孔(43)および
前記負圧アクチュエータ用ダイアフラム(35)の作動
部(39)に設けられた孔(42)にリベット(44)
を差し込んで、前記弁体部(28)と前記作動部(3
9)とを互いに連結することを特徴とする液体封入式マ
ウント。
1. The other mounting portion (5) is connected to one mounting portion (1) provided with a center boss (2) through an elastic body (9) made of a rubber-like elastic material, and the other mounting portion (1) is connected. The diaphragm (10) is arranged inside the portion (5) to form the airtight space (11).
Is provided and the airtight space (11) is partitioned into a plurality of liquid chambers (13) and (14) by a partition part (12), and the plurality of liquid chambers (13) and (14) are divided into first and second orifices (2).
3) A valve body portion (28) which communicates with each other through (26) and which switches the opening and closing of the second orifice (26) is provided on the inner peripheral portion of the diaphragm (10), and the valve body portion (2) is provided.
8) A liquid-filled mount, comprising: a negative pressure actuator (31) for switching and operating the negative pressure actuator (31), and the negative pressure actuator (31) including a negative pressure actuator diaphragm (35). A hole (43) is provided in the
3) is used as a pressure release hole when the working fluid (15) is sealed by caulking in the liquid, and after the working fluid (15) is sealed, the working portion of the hole (43) and the diaphragm (35) for the negative pressure actuator (35). Rivet (44) in hole (42) in (39)
By inserting the valve body portion (28) and the operating portion (3
9) A liquid-filled mount characterized in that it is connected to each other.
【請求項2】 センターボス(2)を備えた液体封入式
マウントにおいて、 ダイアフラム(10)の内周部に設けられたオリフィス
(26)開閉切換用の弁体部(28)に、液中カシメに
よる作動液(15)の封入時に圧力抜き孔として利用さ
れるとともに、前記作動液(15)の封入後にリベット
(44)が差し込まれて前記弁体部(28)と負圧アク
チュエータ用ダイアフラム(35)の作動部(39)と
を互いに連結させる孔(43)が設けられていることを
特徴とする液体封入式マウント。
2. A liquid-filled mount comprising a center boss (2), wherein a valve body portion (28) for opening and closing an orifice (26) provided in an inner peripheral portion of a diaphragm (10) is caulked in the liquid. Is used as a pressure relief hole when the working fluid (15) is filled with the working fluid (15), and a rivet (44) is inserted after the working fluid (15) is filled into the valve body (28) and the negative pressure actuator diaphragm (35). ) The liquid-filled mount, characterized in that it is provided with a hole (43) for connecting the actuating part (39) of FIG.
JP5264096A 1996-02-16 1996-02-16 Liquid filled mount Expired - Fee Related JP3678253B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5264096A JP3678253B2 (en) 1996-02-16 1996-02-16 Liquid filled mount

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5264096A JP3678253B2 (en) 1996-02-16 1996-02-16 Liquid filled mount

Publications (2)

Publication Number Publication Date
JPH09222148A true JPH09222148A (en) 1997-08-26
JP3678253B2 JP3678253B2 (en) 2005-08-03

Family

ID=12920440

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5264096A Expired - Fee Related JP3678253B2 (en) 1996-02-16 1996-02-16 Liquid filled mount

Country Status (1)

Country Link
JP (1) JP3678253B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1122460A2 (en) * 2000-02-01 2001-08-08 Toyo Tire & Rubber Co., Ltd . Switchable liquid-filled vibration absorbing mount
EP1055840A3 (en) * 1999-05-27 2003-04-23 Toyo Tire & Rubber Co., Ltd . Switchable liquid-filled vibration isolating mount
WO2003071156A1 (en) * 2002-02-19 2003-08-28 Trelleborg Automotive Technical Centre Gmbh Hydraulically damping bearing
JP2011247381A (en) * 2010-05-28 2011-12-08 Tokai Rubber Ind Ltd Fluid-filled vibration damping device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1055840A3 (en) * 1999-05-27 2003-04-23 Toyo Tire & Rubber Co., Ltd . Switchable liquid-filled vibration isolating mount
EP1122460A2 (en) * 2000-02-01 2001-08-08 Toyo Tire & Rubber Co., Ltd . Switchable liquid-filled vibration absorbing mount
EP1122460A3 (en) * 2000-02-01 2003-04-09 Toyo Tire & Rubber Co., Ltd . Switchable liquid-filled vibration absorbing mount
US6592110B2 (en) 2000-02-01 2003-07-15 Toyo Tire & Rubber Co., Ltd. Switchable liquid-filled vibration absorbing mount
WO2003071156A1 (en) * 2002-02-19 2003-08-28 Trelleborg Automotive Technical Centre Gmbh Hydraulically damping bearing
US6921067B2 (en) 2002-02-19 2005-07-26 Trelleborg Automotive Technical Centre Gmbh Hydraulic damping mount
KR100914731B1 (en) * 2002-02-19 2009-08-31 트렐레보르그 아우토모티브 테크니컬 센터 게엠베하 Hydraulically damping bearing
JP2011247381A (en) * 2010-05-28 2011-12-08 Tokai Rubber Ind Ltd Fluid-filled vibration damping device

Also Published As

Publication number Publication date
JP3678253B2 (en) 2005-08-03

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