JPS58109743A - Liquid sealed damping device - Google Patents

Liquid sealed damping device

Info

Publication number
JPS58109743A
JPS58109743A JP21360481A JP21360481A JPS58109743A JP S58109743 A JPS58109743 A JP S58109743A JP 21360481 A JP21360481 A JP 21360481A JP 21360481 A JP21360481 A JP 21360481A JP S58109743 A JPS58109743 A JP S58109743A
Authority
JP
Japan
Prior art keywords
rubber elastic
wall
hole
chamber
fluid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP21360481A
Other languages
Japanese (ja)
Inventor
Isao Ozawa
小沢　功
Yukio Aono
青野　幸夫
Masato Ueno
正人 上野
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.)
Toyoda Gosei Co Ltd
Original Assignee
Toyoda Gosei 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 Toyoda Gosei Co Ltd filed Critical Toyoda Gosei Co Ltd
Priority to JP21360481A priority Critical patent/JPS58109743A/en
Priority to CA000412297A priority patent/CA1194045A/en
Priority to DE3235865A priority patent/DE3235865C2/en
Priority to FR8216404A priority patent/FR2519721B1/en
Priority to US06/427,533 priority patent/US4492366A/en
Publication of JPS58109743A publication Critical patent/JPS58109743A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
    • F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
    • F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
    • F16F13/08—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper
    • F16F13/10—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper the wall being at least in part formed by a flexible membrane or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
    • B60K5/12—Arrangement of engine supports
    • B60K5/1208—Resilient supports

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Combined Devices Of Dampers And Springs (AREA)

Abstract

PURPOSE:To eliminate the need to assemble extra a separate parting member with a throttle opening by a structure wherein an elastic rubber wall itself, which is the chamber wall of a first fluid chamber, is served as a parting part between the first and second fluid chambers and further the throttle opening is formed in said wall. CONSTITUTION:Because the elastic rubber wall 1 itself, which is the chamber wall of the first fluid chamber A, is served as a parting part between the first and second fluid chambers and further the throttle opening 2 is formed in the wall 1, so no separate parting member with a throttle opening is necessary to be assembled extra. In addition, because the passage of the throttle opening can be formed long enough, the damping action due to flow resistance is imparted effectively. Especially, because the elastic rubber wall is squashed in direct proportion to the amplitude of vibration and correspondingly the passage diameter of the throttle opening 2 is squeezed, the excellent effect of the increase of damping action in proportion to the increase of the amplitude of vibration.

Description

【発明の詳細な説明】 本発＃１はゴム弾性体壁よりなる互に独立の第１および
第２の流体至を有し、＆Ｉ動が作用して上記流体室が変
形したときに両流体室間の仕切部に形成された絞り孔を
両流体室の封入液体が流通することにより振動の減試作
用をなす液封入防振装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention #1 has mutually independent first and second fluid chambers made of rubber elastic walls, and when the fluid chamber is deformed by &I motion, both fluids The present invention relates to a liquid-filled vibration isolator that reduces vibration by causing the liquid sealed in both fluid chambers to flow through a throttle hole formed in a partition between the chambers.

この稙の液封入防振装置１１は、本両のエンジン支持部
などに適用されるものであって、一般に厚内のゴム弾性
体を室壁とする第１の流体室とペロースないしはシート
状の薄肉のゴム弾性体を室壁とする第２の流体室と、両
流体室間を区画する仕切部と、両流体室の封入液体を流
通せしめるために仕切部に設けた絞や孔とを基本的費素
として具備しており、装置に支持せしめたエンジン等が
振動すると第１の流体のゴム弾性体室壁が変形して流体
室の容積が変化し、両流体室間に液圧差が生じて封入液
体は上記絞染孔を流通し、その除の流通抵抗により振動
減衰作用がなされる。This liquid-filled vibration isolator 11 is applied to engine support parts of both cars, and generally has a first fluid chamber whose chamber wall is made of a thick rubber elastic material, and a perose or sheet-like fluid chamber. Basically, it consists of a second fluid chamber whose chamber wall is made of a thin rubber elastic body, a partition section that partitions both fluid chambers, and a restriction or hole provided in the partition section to allow the liquid sealed in both fluid chambers to flow. When the engine, etc. supported by the device vibrates, the rubber elastic chamber wall of the first fluid deforms and the volume of the fluid chamber changes, creating a fluid pressure difference between the two fluid chambers. The enclosed liquid flows through the dyeing hole, and the vibration damping effect is achieved by the flow resistance.

この麺の装置としては振動減衰作用にすぐれていること
が要求されることはいうまでもな≠が、構成部材および
組付は個所の少なく構造が簡素であることも要求される
。Needless to say, this noodle device is required to have an excellent vibration damping effect, but it is also required to have a simple structure with few components and assembly.

本発明はこの要求に応える液封入防振装置を提供するこ
とを目的とするものである。An object of the present invention is to provide a liquid-filled vibration isolator that meets this demand.

本発明においては、被支持体を支持する厚肉のゴム弾性
体壁を外形が円錐台等の錐台形で底面に一所を設けた形
状に成形し、該ゴム弾性体壁の底面に底板を取付けて一
所を被覆することにより第１の流体室を構成する。また
上記ゴム弾性体壁のほぼ軸心部に上記凹所と弾性体壁外
周とを結ぶ貫通孔を設けて絞り孔を構成する。In the present invention, a thick rubber elastic wall that supports a supported object is formed into a truncated cone shape such as a truncated cone, and a bottom plate is provided on the bottom surface, and a bottom plate is attached to the bottom surface of the rubber elastic wall. The first fluid chamber is configured by attaching and covering one area. Further, a through hole connecting the recess and the outer periphery of the elastic wall is provided substantially at the axial center of the rubber elastic wall to form a throttle hole.

そして上記絞り孔の開口するゴム弾性体壁の外Ｉ＃部分
に薄いゴム弾性体シートを上記ゴム弾性体壁外周との間
に空間を形成するように設けて上記絞り孔により第１の
流体室と連通ずる第２の流体室【構成する。A thin rubber elastic sheet is provided on the outer I# portion of the rubber elastic wall where the throttle hole opens, so as to form a space between the rubber elastic wall and the outer periphery of the rubber elastic wall, and the throttle hole opens the first fluid chamber. a second fluid chamber communicating with the second fluid chamber;

本発明の装置は＊＊が簡素で組付けが容易であり、また
第１の流体室の室壁をなすゴム弾性体壁を利用して絞抄
孔を構成したので絞や孔を形成するための特別の部材も
不必要であり、かつ振動により第１の流体室の室壁がｔ
杉したときにこれにより絞り孔の径は縮小されるので振
幅に対応したＩＭ動減該特性が得られる。The apparatus of the present invention is simple and easy to assemble, and since the drawing hole is formed using the rubber elastic wall that forms the chamber wall of the first fluid chamber, the drawing hole can be easily formed. There is no need for a special member, and the vibration causes the chamber wall of the first fluid chamber to
Since the diameter of the aperture hole is reduced when the cedar is removed, the IM dynamic reduction characteristics corresponding to the amplitude can be obtained.

以下、本発明に図示の実階例により説明する０図におい
て、１は第１の流体ｉＡの室壁を構成するとともにエン
ジン尋の被支持体の前置を受ける厚内のゴム弾性体壁で
ある。このゴム弾性体壁１は外形が円錐台形でその底面
部には円絶形の一所が形成されている。肉厚は下方へ潮
吹薄くなっている。またゴム弾性体＃１１１には、凹所
の頂点と上面の中心を結ぶ一糎に沿って絞り孔をなす貫
通孔２が形成しである。Hereinafter, the present invention will be explained with reference to an actual example shown in Fig. 0, where 1 is a rubber elastic wall with a thickness that constitutes the chamber wall of the first fluid iA and receives the front of the supported body of the engine. be. The rubber elastic wall 1 has a truncated conical outer shape, and a conical portion is formed on the bottom surface thereof. The thickness becomes thinner downwards. Further, in the rubber elastic body #111, a through hole 2, which is a constriction hole, is formed along a line connecting the apex of the recess and the center of the upper surface.

凹所を形成したゴム弾性体ｄｌ１１０に部には一所を置
うようにゴム弾性体壁１と加（ｌＩｌｔ徽看されたかし
め金具３１によりかしめられた底板３が設けられている
。なお、底板３には中央部にポル）６ａが溶接されてお
り、このポル）６ａを固定部材例えば１＃ｆ両ボディに
神通しナツトで締付けることにより装置全体が支持され
る。そして該底板３と凹所とにより第１の流体室ムが構
成される◎一方、ゴム弾性体−１の上ｔｒｔ部にはこれ
に埋込まれるようにして上部支持板４０円形をなす中央
部が固着されている。上部支持板本にはその中心に通孔
４１が設けられて上記絞り孔２と合歓しており、また左
右両端に燻下方へ伸びる７ランジ部４２が形成されて−
る０これ婚ゴム弾性体−１、かしめ金具３１、上部支持
板本は一体構造体で、例えばゴム弾性体Ｍｉ１１を成形
すべきキャビティを有する金型にかしめ金具３１および
上部支持板本をキャビティに臨ましめてセット上１キヤ
ビテイ内にゴム材料を注入することにより一体成形され
るＯこの場合、ゴム弾性体Ｊｌｌｌを形成すべきゴム材
料がかしめ金具３１の上端を包み、またゴム材料が上部
支持板本の下面を包むとともに上面中央部を包むように
成形されることにより、相互の結合が強固になされる０ ７はドーム形をなす薄肉のゴム弾性体シートで下熾都に
断面り字形の補強金具８ｂが埋込まれている。一方、上
部支持板本の上面にはかしめ金＾８＆が予め溶接してあ
り、該金具８ａにて上記金具８ｂをかしめることにより
ゴム弾性体シート７は上部支持板４に置場され、これに
よって第２の流体室Ｂが構成される。１ｌｉｊａ体室支
持板４と予め一体化されたゴム弾性体壁１と、底板３、
Ｉ＃強全金具８ｂ具備するゴム弾性体シート７とを液体
中に浸漬し、液体中で底板５をかしめ金具３１でかしめ
、さらに補強＆具８ｂをかしめ金Ｊ４８＆でかしめるこ
とにより容易に行ない得る。A rubber elastic body wall 1 and a bottom plate 3 caulked by a caulking fitting 31 are provided at one place on the rubber elastic body dl110 forming a recess. A pole 6a is welded to the center of the bottom plate 3, and the entire apparatus is supported by tightening the pole 6a to a fixing member such as 1#f with a threaded nut. The bottom plate 3 and the recess constitute a first fluid chamber ◎ On the other hand, the upper support plate 40 has a circular central portion embedded in the upper trt portion of the rubber elastic body-1. is fixed. The upper support plate is provided with a through hole 41 at its center, which merges with the aperture hole 2, and seven flange portions 42 extending downward are formed at both left and right ends.
The rubber elastic body 1, the caulking metal fitting 31, and the upper support plate are integrally constructed, and for example, the caulking metal fitting 31 and the upper support plate are placed in a mold having a cavity in which the rubber elastic body Mi11 is to be molded. In this case, the rubber material to form the rubber elastic body wraps the upper end of the caulking fitting 31, and the rubber material wraps around the upper support plate. 07 is a dome-shaped thin rubber elastic sheet that is molded to wrap the lower surface and the center of the upper surface, thereby making the mutual connection strong. is embedded. On the other hand, a caulking metal ^8& is pre-welded on the upper surface of the upper support plate, and by caulking the metal fitting 8b with the metal fitting 8a, the rubber elastic sheet 7 is placed on the upper support plate 4, and thereby A second fluid chamber B is configured. 1lija body chamber support plate 4 and a rubber elastic body wall 1 integrated in advance, a bottom plate 3,
This can be easily done by immersing the rubber elastic sheet 7 provided with the I# strong metal fittings 8b in a liquid, caulking the bottom plate 5 with the caulking metal fittings 31 in the liquid, and further caulking the reinforcing & fittings 8b with the caulking metal J48&. obtain.

かしめ金具３１によりゴム弾性体壁１と一体化された底
板３にはこれを支えるようにして矩形のストッパ部材６
が組付けられている。ストッパ部材５の左右両端は上方
へ屈曲して垂直部５１を形成し、その上端が所定の１ｓ
１１隔をおいてゴム弾性体で被ｓ１された上部支持板４
０Ｆ面と対向している。ストッパＩＭＮＳの中央部には
ボシト６＆貫通用の穴５２が形成されている。A rectangular stopper member 6 is attached to the bottom plate 3, which is integrated with the rubber elastic wall 1 by means of a caulking fitting 31, to support the bottom plate 3.
is assembled. Both left and right ends of the stopper member 5 are bent upward to form a vertical portion 51, the upper end of which is bent at a predetermined 1s.
Upper support plate 4 covered with rubber elastic bodies at 11 intervals
It faces the 0F surface. A bottom 6 and a through hole 52 are formed in the center of the stopper IMNS.

９は保護カバーで、中央部は第２の流体室Ｂう形状に成
形されている。モしてポル）６ｂ。Reference numeral 9 denotes a protective cover, the central portion of which is shaped like a second fluid chamber B. 6b.

６０を予め重殺した上部支持板盛上に載置される。この
保護カバー９はゴム弾性体シート７を保護するとともに
、装置作動時に第２の流体室Ｂが過度に膨張するのを阻
止するストッパの役−」を果す。60 is placed on top of the upper support plate which has been heavily loaded in advance. This protective cover 9 protects the rubber elastic sheet 7 and also serves as a stopper to prevent the second fluid chamber B from expanding excessively when the device is operated.

保護カバー９で被覆された上部支持板番にはエンジン等
の被支持体が直ｍまたは間接に設置され、ゴム弾性体１
！１ｌｌＦ１上部支持板番を介して被支持体の荷重を受
ける。A supported body such as an engine is installed directly or indirectly on the upper support plate covered with the protective cover 9, and the rubber elastic body 1
! 1llF1 The load of the supported body is received through the upper support plate number.

上記のように構成し、被支持体を支持せしめた液封入防
振装置において、被支持体に振動が作用すると第１の流
体室ムの室壁をなすゴム弾性体Ｗｉ１１が弾性的に閣形
する。こ、れにより第１の流体家人は容積変化して液圧
が鼠化し、封入液体は紋り孔２を通って両流体室Ａ、Ｂ
間を流動し、このときの流通抵抗により振動減衰作用が
なされる。この場合、ゴム弾性体壁１の過度の変形はス
トッパ部材５０当直部６１の先端が上部支持板番に当接
することにより阻止され、装置の損傷を防ぐ。In the liquid-filled vibration isolator constructed as described above and supporting a supported body, when vibration acts on the supported body, the rubber elastic body Wi11 forming the chamber wall of the first fluid chamber elastically forms a cabinet shape. do. As a result, the volume of the first fluid chamber changes and the fluid pressure becomes constant, and the sealed liquid passes through the hole 2 and enters both fluid chambers A and B.
The flow resistance at this time produces a vibration damping effect. In this case, excessive deformation of the rubber elastic wall 1 is prevented by the tip of the duty section 61 of the stopper member 50 coming into contact with the upper support plate number, thereby preventing damage to the device.

ところで本発明の装置では、第１の流体室ムの室壁たる
ゴム弾性体＠ｌ自体を第２の流体室Ｂとの仕切部とし、
これに絞り孔２を形成したので、絞り孔を持つ別体の仕
切部材を組込む会費がなく、かつ充分に絞染孔の経路を
長くすることができるので、流通抵抗による減衰作用が
有効に発揮される。特に、振幅が大きくなるに件ってゴ
ム弾性体壁１が大きく押しつぶされ、これに応じて絞９
孔２０通路径が狭められることにより、振幅の増大に対
応して減衰作用が増大するというすぐれた効果が発揮さ
れる。なお絞９孔２はゴム弾性体Ａｊ１１のほぼ軸心部
に貫通形成すればよいが、応力が比較的小さい軸心に形
成することが好ましい。By the way, in the device of the present invention, the rubber elastic body @l which is the chamber wall of the first fluid chamber B is used as a partition part from the second fluid chamber B,
Since the aperture hole 2 is formed in this, there is no need to incorporate a separate partition member with the aperture hole, and the path of the tie-dye hole can be made sufficiently long, so the damping effect due to flow resistance can be effectively exerted. be done. In particular, as the amplitude increases, the rubber elastic wall 1 is crushed, and the diaphragm 9 corresponds to this.
By narrowing the hole 20 passage diameter, an excellent effect is exhibited in that the damping effect increases in response to an increase in amplitude. Note that the aperture 9 hole 2 may be formed through the rubber elastic body Aj11 almost at the axial center, but it is preferable to form it at the axial center where stress is relatively small.

更に本発明の装置ではゴム弾性体壁内に絞り孔を形成し
たので構成部材も少くてすみ、装置全体モコンパクトに
形成できる。Further, in the device of the present invention, since the aperture hole is formed in the wall of the rubber elastic body, the number of structural members can be reduced, and the entire device can be made compact.

なお、ゴム弾性体壁は角錐台形でもよく、上部支持板、
第２の流体室等の形状は上記実施例に限らずその池の形
状も可能であり、また各部材結合の具体的ｗｔ造も上記
実施例に限定されないＯNote that the rubber elastic wall may be in the shape of a truncated pyramid, and the upper support plate,
The shape of the second fluid chamber etc. is not limited to the above embodiment, and the shape of the pond is also possible, and the specific structure of each member connection is not limited to the above embodiment.

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

図は本発明の一実噸例を示すもので、第１図は乎圓図、
第２図はＪ１図の■−ｎ線断面図、第３図は′＠１図の
ト４線断面図である。 Ａ・・・・・・第１の流体室　Ｂ・・・・・・第２の流
体室１・・・・・・厚肉ゴム・産性体壁　　２・・・・
・・絞り孔３・・・・・・底板　　　４・・・・・・上
部支持板５・・・・・・ストッパ部材　　７・・・・・
・ゴム弾性体シート代理人　　弁理士　　伊　藤　求　
馬（）第２回 第３図The figure shows a practical example of the present invention, and Figure 1 is a circle diagram;
FIG. 2 is a sectional view taken along the line ■-n of FIG. J1, and FIG. 3 is a sectional view taken along line G4 of FIG. A...First fluid chamber B...Second fluid chamber 1...Thick rubber/producer body wall 2...
... Throttle hole 3 ... Bottom plate 4 ... Upper support plate 5 ... Stopper member 7 ...
・Rubber elastic sheet agent Patent attorney Motomi Ito
Horse () 2nd Figure 3

Claims (1)

【特許請求の範囲】[Claims] ゴム弾性体壁よりなる互に独立の第１および第２の流体
室と、両流体室間を連通せしめる絞り孔とを具備し、上
記ゴム弾性体壁に支持された被支持体の振動により上記
両流体室の容積が貧化して上記絞９孔を通って封入液体
が流通するようになした液封入防振装置において、外形
が錐台形で底部に凹所を形成した厚肉のゴム弾性体壁の
該凹所を底板により被−して１Ｉ１１の流体室を構成し
、該ゴム弾性体壁のほぼ軸心部に嚢通孔を設けて紋り孔
を構成し、該弾性体壁の外ｌｌ８Ｉ１１部に該外周部と
の間に上記絞り孔と連通する空間部を形成するようＫｊ
ｌ内のゴム弾性体シートを設けて第２の流体室を構成し
たことを特徴とする液封入防振装置。It has first and second fluid chambers that are independent of each other and are made of a rubber elastic wall, and a throttle hole that communicates between the two fluid chambers, and the vibration of the supported body supported by the rubber elastic wall causes the above-mentioned In a liquid-filled vibration isolator in which the volumes of both fluid chambers are reduced so that the sealed liquid flows through the nine orifices, a thick-walled rubber elastic body has a frustum-shaped outer shape and a recess formed at the bottom. The concave part of the wall is covered with a bottom plate to form a fluid chamber of 1I11, a sac passage hole is provided approximately at the axial center of the rubber elastic wall to form a burlap hole, and a hole is formed on the outside of the elastic wall. Kj so as to form a space communicating with the aperture hole between the ll8I11 part and the outer peripheral part.
1. A liquid-filled vibration isolating device characterized in that a second fluid chamber is configured by providing a rubber elastic sheet within the liquid chamber.
JP21360481A 1981-09-30 1981-12-24 Liquid sealed damping device Pending JPS58109743A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP21360481A JPS58109743A (en) 1981-12-24 1981-12-24 Liquid sealed damping device
CA000412297A CA1194045A (en) 1981-09-30 1982-09-27 Elastically damping device for the suspension of an engine
DE3235865A DE3235865C2 (en) 1981-09-30 1982-09-28 Bearing with hydraulic damping to support an engine in a vehicle
FR8216404A FR2519721B1 (en) 1981-09-30 1982-09-29 ELASTIC DAMPING DEVICE FOR THE SUSPENSION OF A VEHICLE ENGINE
US06/427,533 US4492366A (en) 1981-09-30 1982-09-29 Elastically damping device for the suspension of an engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21360481A JPS58109743A (en) 1981-12-24 1981-12-24 Liquid sealed damping device

Publications (1)

Publication Number Publication Date
JPS58109743A true JPS58109743A (en) 1983-06-30

Family

ID=16641928

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21360481A Pending JPS58109743A (en) 1981-09-30 1981-12-24 Liquid sealed damping device

Country Status (1)

Country Link
JP (1) JPS58109743A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5652640A (en) * 1979-09-29 1981-05-11 Toyoda Gosei Co Ltd Liquid-filled vibration absorbing apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5652640A (en) * 1979-09-29 1981-05-11 Toyoda Gosei Co Ltd Liquid-filled vibration absorbing apparatus

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