JP3421388B2 - Liquid filled vibration isolator - Google Patents
Liquid filled vibration isolatorInfo
- Publication number
- JP3421388B2 JP3421388B2 JP14578793A JP14578793A JP3421388B2 JP 3421388 B2 JP3421388 B2 JP 3421388B2 JP 14578793 A JP14578793 A JP 14578793A JP 14578793 A JP14578793 A JP 14578793A JP 3421388 B2 JP3421388 B2 JP 3421388B2
- Authority
- JP
- Japan
- Prior art keywords
- plate
- rubber
- side plate
- wall
- partition plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Combined Devices Of Dampers And Springs (AREA)
Description
【発明の詳細な説明】
【０００１】
【産業上の利用分野】本発明は液封入防振装置に関し、
特に仕切板の位置決め構造の改良に関する。
【０００２】
【従来の技術】図３に従来の液封入防振装置の一例を示
す。図において、下方へ開放する碗状の厚肉ゴム壁１に
は、頂面に上板６が接合され、その中心ボルト６１に振
動体が連結載置される。ゴム壁１の開口縁には全周に筒
状側板２の上半部が埋設され、その下半部は下方へ延び
た後、下端部２２が大きく外方へ拡径屈曲している。
【０００３】上記側板２の内周面には一定厚でゴム壁１
の一部が延びてシールゴム層１１となっており、かかる
シールゴム層１１に密接して仕切板３が挿入されて、そ
の上方に上記ゴム壁１を室壁とする主液室Ａが形成され
ている。仕切板３の下方にはこれに沿って自由変形可能
なゴム膜４が配設され、該ゴム膜４の外周縁上面は仕切
板３の外周縁下面に密接し、これにより形成される閉鎖
空間が副液室Ｂとなっている。
【０００４】すなわち、上記仕切板３は外周下端部がフ
ランジ状に外方へ拡径し、かかるフランジ部３２とこれ
に接するゴム膜４外周縁が上記側板２の拡径された下端
部２２内に位置せしめられる。そして、下方より上記ゴ
ム膜４を覆って設けた容器状の底板５の開口縁を、上記
フランジ部３２を包むようにカシメ変形せしめて仕切板
３とゴム膜４を挟着し、仕切板３の位置決めと液の封入
を行っている。
【０００５】なお、上記主液室Ａと副液室Ｂとは仕切板
３の外周に形成された絞り流路３１により互いに連通
し、防振装置は底板５の下面中心に立設した連結ボルト
５１により基体に固定される。
【０００６】
【発明が解決しようとする課題】しかし、上記従来の仕
切板３の位置決め構造では、側板２の下端部２２を大き
く外方へ突出せしめているため、以下の如き問題点があ
る。すなわち、上記下端部２２がいわゆる深絞りとなる
ため、板体のプレス成形により注意深く製造する必要が
あり、加工に手間取る。
【０００７】また、ゴム材を接合する側板２の内周面に
は接合に先立って下地処理液を塗布する必要があるが、
突出する下端部２２は塗布時に影となるため、図４に示
す如く、処理液の塗布ノズルＮの向きを下端部２２と他
の部分とで変更するか（塗布部を×印で示す）、あるい
は図５（１），（２）に示す如く下端部２２の塗布時に
側板２を反転させる等の作業上の手間を必要とする。
【０００８】さらに、側板２の下端部とこれのカシメ部
が外方へ大きく突出するため、装置全体の外径が大きく
なるという問題もある。
【０００９】本発明はかかる課題を解決するもので、製
造の手間を要することなく、コンパクトな構造で、仕切
板の確実な位置決めをなし得る液封入防振装置を提供す
ることを目的とする。
【００１０】
【課題を解決するための手段】本発明の構成を説明する
と、頂面上に振動体を載置した、下方へ開放する容器状
の厚肉ゴム壁１の開口全周に筒状側板２を接合するとと
もに、上記側板２の筒内空間を仕切板３により上下に区
画して、その上方に上記ゴム壁１を室壁とする主液室Ａ
を形成するとともに、仕切板３の下方に配した自由変形
可能なゴム膜４により副液室Ｂを形成して、これら主液
室Ａと副液室Ｂを仕切板３の絞り流路３１により連通せ
しめ、上記側板２をその開口を覆って下端部にカシメ固
定される底板５により基体上に支持せしめてなる液封入
防振装置において、上記ゴム壁１の開口縁から下方へ略
一定径で延びる上記側板２の下半部内周面全周に上記ゴ
ム壁１を所定厚で延出せしめてシールゴム層１１となす
とともに、側板２の上記略一定径とした下半部内周面を
軸方向の一箇所で全周にわたって内方へ突出せしめて、
この突出部２１によって内方へ突出せしめられる上記シ
ールゴム層１１に上記仕切板３の外周縁上面を当接せし
め、上記突出部２１およびこれによって内方へ突出せし
められる上記シールゴム層１１と底板５の板面との間
に、仕切板３下面とゴム膜４の外周縁を互いに密接せし
めて挟着固定したものである。
【００１１】
【作用】上記構成において、仕切板３は外周縁上面が側
板２の突出部２１によって内方へ突出せしめられる上記
シールゴム層１１に当接し、その下面にはゴム膜４の外
周縁が接して、底板５の板面との間で両者が挟持され、
位置決めされる。
【００１２】側板２の突出部２１は内方へ向いているか
ら、側板２の外径が大きくなることはなく、装置体格が
全体として小さくなる。
【００１３】上記突出部２１の突出量は、仕切板３に当
接してこれを位置決めするに必要な程度で良いから小さ
くなる。したがって下地処理剤の塗布は一方向から側板
２内周全面に行うことができ、塗布時の作業工数が低減
される。また、深絞り加工が不要であるから、パイプ材
を使用して側板２を簡易に製造することができる。
【００１４】
【実施例】図１において、下方へ拡開する碗状の厚肉ゴ
ム壁１には頂面に上板６が接合され、振動体がストッパ
板７を介してボルト６１により支持連結される。上記ゴ
ム壁１の開口縁外周には筒状の側板２が接合してあり、
これは上半部がゴム壁１に沿って下方へやや縮径しつつ
延び、ゴム壁１の開口縁から下方へ延びる略一定径の下
半部は途中全周がく字断面をなして内方へ屈曲せしめら
れて突出部２１となっている。ゴム壁１の一部がこの突
出部２１を含む側板２の略一定径の下半部内周面全面に
所定厚で延びてシールゴム層１１となっており、その下
端は側板２の下端よりもやや下方へ延びている（図には
示さず）。
【００１５】側板２内には下方より仕切板３が挿入され
て、その外周縁上面が上記突出部２１のシールゴム層１
１に密接し、ゴム壁１の開口を閉鎖して主液室Ａを形成
している。仕切板３の下方にはこれに沿ってゴム膜４が
配設され、その外周縁は仕切板３の外周縁下面に密接し
て、仕切板３との間に副液室Ｂを形成している。これら
主液室Ａと副液室Ｂは仕切板３の外周に形成した絞り流
路３１により互いに連通している。
【００１６】ゴム膜４の下方より容器状の底板５が覆着
され、その段付きとした開口縁の板面と上記突出部２１
との間で上記仕切板３およびゴム膜４を挟持している。
底板５の開口縁は側板２の下端部外周に沿って延び、上
記突出部２１の外周凹所内にカシメて固定されている。
この底板５は、中心に立設したボルト５１により基体に
連結固定される。
【００１７】かかる構造によれば、仕切板３は突出部２
１と底板５により確実に位置決めされ、同時に側板２内
周に形成したシールゴム層１１の下端が底板５の開口縁
板面に密接して液密性が確保される。
【００１８】突出部２１は側板２の周面を内方へ屈曲せ
しめて形成されるから、側板２の外径が大きくなること
はなく、これに伴って仕切板３、ゴム膜４も小径とでき
るから、装置全体が安価かつコンパクトになる。また、
突出部２１の突出量は仕切板３の位置決めに必要な比較
的小さい量で良いから、下地処理液の側板２内周への塗
布を一方向から行うことができ、塗布作業の手間が軽減
される。
【００１９】また、突出部２１の突出量が小さいことか
ら、深絞り加工は不要であり、側板２をパイプ材により
簡易に製造することができる。
【００２０】なお、側板２と底板５の連結は、図２に示
す如く、底板５の外周縁を挟むように側板２の下端縁を
折り曲げてカシメ固定する構造によっても良い。
【００２１】
【発明の効果】以上の如く、本発明の液封入防振装置に
よれば、コンパクトかつ安価な構造により、仕切板の位
置決めを確実に行うことができる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid filled vibration isolator,
In particular, the present invention relates to an improvement in a partition plate positioning structure. 2. Description of the Related Art FIG. 3 shows an example of a conventional liquid filled vibration isolator. In the figure, an upper plate 6 is joined to a bowl-shaped thick rubber wall 1 that opens downward, and a vibrator is connected and mounted on a center bolt 61 of the upper wall 6. The upper half portion of the cylindrical side plate 2 is buried all around the opening edge of the rubber wall 1, and the lower half portion extends downward, and then the lower end portion 22 is greatly bent outward in a large diameter. The inner peripheral surface of the side plate 2 has a rubber wall 1 having a constant thickness.
Is extended to form a seal rubber layer 11, a partition plate 3 is inserted in close contact with the seal rubber layer 11, and a main liquid chamber A having the rubber wall 1 as a chamber wall is formed above the partition plate 3. I have. A rubber film 4 that can be freely deformed is disposed below and below the partition plate 3, and the upper surface of the outer peripheral edge of the rubber film 4 is in close contact with the lower surface of the outer peripheral edge of the partition plate 3, thereby forming a closed space. Is the auxiliary liquid chamber B. [0004] That is, the partition plate 3 has a flange portion 32 whose outer peripheral lower end portion is outwardly expanded in a flange shape, and the outer peripheral edge of the flange portion 32 and the rubber film 4 in contact with the flange portion 32 are formed in the enlarged lower end portion 22 of the side plate 2. It is located in. Then, the opening edge of the container-like bottom plate 5 provided so as to cover the rubber film 4 from below is deformed by caulking so as to wrap the flange portion 32, and the partition plate 3 and the rubber film 4 are sandwiched. Positioning and liquid filling are performed. The main liquid chamber A and the sub liquid chamber B communicate with each other through a throttle channel 31 formed on the outer periphery of the partition plate 3. It is fixed to the base by 51. However, in the above-described conventional positioning structure of the partition plate 3, since the lower end portion 22 of the side plate 2 is largely protruded outward, there are the following problems. That is, since the lower end portion 22 is a so-called deep drawing, it is necessary to carefully manufacture the plate body by press molding, and it takes time to process. Further, it is necessary to apply a base treatment liquid to the inner peripheral surface of the side plate 2 to which the rubber material is bonded before the bonding.
Since the protruding lower end portion 22 becomes a shadow at the time of application, as shown in FIG. 4, the orientation of the processing liquid application nozzle N may be changed between the lower end portion 22 and other portions (the application portion is indicated by an X mark). Alternatively, as shown in FIGS. 5 (1) and 5 (2), a labor for work such as reversing the side plate 2 when applying the lower end portion 22 is required. Further, since the lower end portion of the side plate 2 and the caulking portion thereof largely protrude outward, there is a problem that the outer diameter of the entire apparatus becomes large. SUMMARY OF THE INVENTION The object of the present invention is to solve the above-mentioned problem, and an object of the present invention is to provide a liquid-filled vibration isolator capable of performing reliable positioning of a partition plate with a compact structure without requiring any manufacturing labor. [0010] The construction of the present invention will be described. A vibrating body is mounted on a top surface and a cylindrical wall is formed around the entire opening of a thick rubber wall 1 which is open downward. The main liquid chamber A, which joins the side plates 2 and divides the in-cylinder space of the side plates 2 up and down by a partition plate 3 and has the rubber wall 1 as a chamber wall thereabove.
And a sub-liquid chamber B is formed by a freely deformable rubber film 4 disposed below the partition plate 3, and the main liquid chamber A and the sub-liquid chamber B are formed by the throttle channel 31 of the partition plate 3. allowed communication, substantially the side plate 2 in the liquid filled vibration isolating device comprising brought supported on a substrate by a bottom plate 5 which is caulked and fixed to the lower end portion covers the opening, downwardly from an opening edge of the rubber wall 1
On the entire inner peripheral surface of the lower half of the side plate 2 extending with a constant diameter,
The rubber wall 1 is extended to a predetermined thickness to form the seal rubber layer 11.
At the same time, the lower half inner peripheral surface of the side plate 2 having the substantially constant diameter is made to protrude inward at one location in the axial direction over the entire circumference,
The is caused to protrude to the protruding portion 21 thus inwardly Shi
The upper surface of the outer peripheral edge of the partition plate 3 is brought into contact with the rubber layer 11, and the protrusion 21 and the inward protrusion of the protrusion 21 are thereby caused.
The lower surface of the partition plate 3 and the outer peripheral edge of the rubber film 4 are closely fixed to each other between the sealing rubber layer 11 and the plate surface of the bottom plate 5 to be sandwiched and fixed. [0011] [action] In the above configuration, the partition plate 3 is that the outer periphery upper surface is made to protrude Therefore inwardly projecting portion 21 of the side plate 2
The outer surface of the rubber film 4 is in contact with the lower surface of the seal rubber layer 11, and the lower surface of the rubber film 4 is sandwiched between the rubber film 4 and the bottom plate 5.
Positioned. Since the projecting portion 21 of the side plate 2 faces inward, the outer diameter of the side plate 2 does not increase, and the size of the apparatus becomes smaller as a whole. The projecting amount of the projecting portion 21 is small as it is sufficient to contact the partition plate 3 and position it. Therefore, the application of the base treating agent can be performed on the entire inner peripheral surface of the side plate 2 from one direction, and the number of work steps during application can be reduced. Further, since deep drawing is not required, the side plate 2 can be easily manufactured using a pipe material. In FIG. 1, an upper plate 6 is joined to a bowl-shaped thick rubber wall 1 which expands downward and a vibrating body is supported and connected by a bolt 61 via a stopper plate 7. Is done. A cylindrical side plate 2 is joined to the outer periphery of the opening edge of the rubber wall 1,
This is because the upper half extends downward along the rubber wall 1 while slightly reducing its diameter, and extends downward from the opening edge of the rubber wall 1 with a substantially constant diameter.
The half part is bent inward to form a protruding part 21 in the form of a V-shaped cross section on the entire circumference. A part of the rubber wall 1 extends over the entire inner peripheral surface of the lower half portion of the side plate 2 including the protruding portion 21 with a predetermined thickness to form a seal rubber layer 11, and the lower end thereof is more than the lower end of the side plate 2. It extends slightly downward (not shown). A partition plate 3 is inserted into the side plate 2 from below.
1, the opening of the rubber wall 1 is closed to form a main liquid chamber A. A rubber film 4 is disposed along and below the partition plate 3, and its outer peripheral edge is in close contact with the lower surface of the outer peripheral edge of the partition plate 3 to form a sub liquid chamber B with the partition plate 3. I have. The main liquid chamber A and the sub liquid chamber B communicate with each other through a throttle channel 31 formed on the outer periphery of the partition plate 3. A container-like bottom plate 5 is covered from below the rubber film 4 and the stepped opening plate surface and the projecting portion 21 are provided.
And the partition plate 3 and the rubber film 4 are sandwiched therebetween.
The opening edge of the bottom plate 5 extends along the outer periphery of the lower end portion of the side plate 2 and is fixed by caulking in the outer peripheral recess of the projecting portion 21.
The bottom plate 5 is connected and fixed to the base by a bolt 51 erected at the center. According to such a structure, the partition plate 3 is
1 and the bottom plate 5 are reliably positioned, and at the same time, the lower end of the seal rubber layer 11 formed on the inner periphery of the side plate 2 is in close contact with the opening edge plate surface of the bottom plate 5 to ensure liquid tightness. Since the projecting portion 21 is formed by bending the peripheral surface of the side plate 2 inward, the outer diameter of the side plate 2 does not increase, and accordingly the partition plate 3 and the rubber film 4 also have a small diameter. As a result, the entire apparatus is inexpensive and compact. Also,
Since the protrusion amount of the protrusion 21 may be a relatively small amount required for positioning the partition plate 3, the base treatment liquid can be applied to the inner periphery of the side plate 2 from one direction, and the labor of the coating operation can be reduced. You. Further, since the amount of protrusion of the protruding portion 21 is small, deep drawing is not required, and the side plate 2 can be easily manufactured from a pipe material. The side plate 2 and the bottom plate 5 may be connected by a structure in which the lower end edge of the side plate 2 is bent so as to sandwich the outer peripheral edge of the bottom plate 5 as shown in FIG. As described above, according to the liquid filled vibration isolator of the present invention, the partition plate can be reliably positioned with a compact and inexpensive structure.
【図面の簡単な説明】
【図１】本発明の一実施例を示す防振装置の全体断面図
である。
【図２】本発明の他の例を示す防振装置の全体断面図で
ある。
【図３】従来装置の全体断面図である。
【図４】従来の処理液塗布工程を示す半断面図である。
【図５】従来の処理液塗布工程を示す半断面図である。
【符号の説明】
１ ゴム壁
２ 側板
２１ 突出部
３ 仕切板
３１ 絞り流路
４ ゴム膜
５ 底板
Ａ 主液室
Ｂ 副液室BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall sectional view of an anti-vibration device according to an embodiment of the present invention. FIG. 2 is an overall sectional view of a vibration isolator showing another example of the present invention. FIG. 3 is an overall sectional view of a conventional device. FIG. 4 is a half sectional view showing a conventional treatment liquid application step. FIG. 5 is a half sectional view showing a conventional processing liquid application step. [Description of Signs] 1 Rubber wall 2 Side plate 21 Projection 3 Partition plate 31 Throttle channel 4 Rubber film 5 Bottom plate A Main liquid chamber B Sub liquid chamber
───────────────────────────────────────────────────── フロントページの続き (72)発明者 波間 太 愛知県西春日井郡春日町大字落合字長畑 １番地 豊田合成株式会社内 (56)参考文献 特開 平５−126187（ＪＰ，Ａ) 特開 平５−44770（ＪＰ，Ａ) 特開 昭61−167733（ＪＰ，Ａ) 特開 昭61−2940（ＪＰ，Ａ) 米国特許4641817（ＵＳ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) F16F 13/00 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Futami Hatama 1 Ochiai Nagahata, Kasuga-cho, Nishikasugai-gun, Aichi Prefecture Inside Toyoda Gosei Co., Ltd. (56) References JP-A-5-126187 (JP, A) JP-A Heihei 5-44770 (JP, A) JP-A-61-167733 (JP, A) JP-A-61-2940 (JP, A) US Pat. No. 4,618,817 (US, A) (58) Fields investigated (Int. Cl. 7) , DB name) F16F 13/00
Claims (1)
する容器状の厚肉ゴム壁の開口全周に筒状側板を接合す
るとともに、上記側板の筒内空間を仕切板により上下に
区画して、その上方に上記ゴム壁を室壁とする主液室を
形成するとともに、仕切板の下方に配した自由変形可能
なゴム膜により副液室を形成して、これら主液室と副液
室を仕切板の絞り流路により連通せしめ、かつ側板をそ
の開口を覆って下端部にカシメ固定される底板により基
体上に支持してなる液封入防振装置において、上記ゴム
壁の開口縁から下方へ略一定径で延びる上記側板の下半
部内周面全周に上記ゴム壁を所定厚で延出せしめてシー
ルゴム層となすとともに、側板の上記略一定径とした下
半部内周面を軸方向の一箇所で全周にわたって内方へ突
出せしめて、この突出部によって内方へ突出せしめられ
る上記シールゴム層に上記仕切板の外周縁上面を当接せ
しめ、上記突出部およびこれによって内方へ突出せしめ
られる上記シールゴム層と底板の板面との間に、仕切板
下面とゴム膜の外周縁を互いに密接せしめて挟着固定し
たことを特徴とする液封入防振装置。(57) [Claim 1] A cylindrical side plate is joined to the entire periphery of an opening of a thick rubber wall of a downwardly opened container shape on which a vibrating body is mounted on a top surface. The in-cylinder space of the side plate is vertically divided by a partition plate, a main liquid chamber having the rubber wall as a chamber wall is formed above the partition wall, and a sub-liquid is formed by a freely deformable rubber film disposed below the partition plate. A liquid formed by forming a chamber, allowing the main liquid chamber and the sub liquid chamber to communicate with each other by a throttle channel of a partition plate, and supporting the side plate on the base by a bottom plate that covers the opening and is fixed to the lower end portion by swaging. In the enclosed vibration isolator, the rubber
Lower half of the side plate extending downward from the opening edge of the wall with a substantially constant diameter
The parts in circumference entire periphery to the rubber wall occupies not extend a predetermined thickness with forming and sealing rubber layer, under which was the substantially constant diameter of the side plate
Within half peripheral surface of the axially one place and brought inwardly projecting over the entire periphery, it is allowed projecting the projected portions thus inwardly
The upper surface of the outer peripheral edge of the partition plate is brought into contact with the seal rubber layer, and the protrusions and the protrusions are thereby made to project inward.
A liquid filled vibration isolator, wherein the lower surface of the partition plate and the outer peripheral edge of the rubber film are closely fixed to each other between the sealing rubber layer and the plate surface of the bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14578793A JP3421388B2 (en) | 1993-05-25 | 1993-05-25 | Liquid filled vibration isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14578793A JP3421388B2 (en) | 1993-05-25 | 1993-05-25 | Liquid filled vibration isolator |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002274157A Division JP2003106368A (en) | 2002-09-19 | 2002-09-19 | Liquid-filled vibration isolating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06330981A JPH06330981A (en) | 1994-11-29 |
| JP3421388B2 true JP3421388B2 (en) | 2003-06-30 |
Family
ID=15393157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14578793A Expired - Fee Related JP3421388B2 (en) | 1993-05-25 | 1993-05-25 | Liquid filled vibration isolator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3421388B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4054079B2 (en) * | 1996-09-10 | 2008-02-27 | 株式会社ブリヂストン | Vibration isolator |
-
1993
- 1993-05-25 JP JP14578793A patent/JP3421388B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06330981A (en) | 1994-11-29 |
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