JPH0399251U - - Google Patents
Info
- Publication number
- JPH0399251U JPH0399251U JP800590U JP800590U JPH0399251U JP H0399251 U JPH0399251 U JP H0399251U JP 800590 U JP800590 U JP 800590U JP 800590 U JP800590 U JP 800590U JP H0399251 U JPH0399251 U JP H0399251U
- Authority
- JP
- Japan
- Prior art keywords
- partition plate
- elastic
- thin film
- liquid
- chamber
- 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
Links
- 239000007788 liquid Substances 0.000 claims description 11
- 238000005192 partition Methods 0.000 claims description 10
- 239000010409 thin film Substances 0.000 claims description 9
- 238000013016 damping Methods 0.000 claims 3
- 230000003068 static effect Effects 0.000 claims 2
- 238000002955 isolation Methods 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Combined Devices Of Dampers And Springs (AREA)
Description
第１図は本考案の１実施例を示す縦断面図、第
２図および第３図は弾性薄膜を取付けた仕切板の
断面図と平面図、第４図〜第６図はそれぞれ他の
実施例を示す縦断面図、第７図Ａは振動数と動的
ばね定数の関係を示す線図、同図Ｂは振動数と損
失ばね定数の関係を示す線図である。
１……ゴム製基体、４……受支器体、５……弾
性可撓部材、６……液体、７……空気室、８……
仕切板、９……液体封入室、９ａ，９ｂ……上下
液室、１０……オリフイス、１１ａ，１１ｂ……
弾性薄膜、１２……貫通孔、１４ａ，１４ｂ……
小空気室、１８……バネ手段。
Fig. 1 is a longitudinal sectional view showing one embodiment of the present invention, Figs. 2 and 3 are sectional views and a plan view of a partition plate to which an elastic thin film is attached, and Figs. 4 to 6 respectively show other embodiments. A longitudinal sectional view showing an example, FIG. 7A is a diagram showing the relationship between vibration frequency and dynamic spring constant, and FIG. 7B is a diagram showing the relationship between vibration frequency and loss spring constant. DESCRIPTION OF SYMBOLS 1...Rubber base, 4...Brace body, 5...Elastic flexible member, 6...Liquid, 7...Air chamber, 8...
Partition plate, 9...liquid sealing chamber, 9a, 9b...upper and lower liquid chambers, 10...orifice, 11a, 11b...
Elastic thin film, 12... Through hole, 14a, 14b...
Small air chamber, 18...spring means.
Claims (1)
内部に室を形成するとともに該室内に液体を封入
し、前記ゴム製基体と前記弾性可撓部材間に仕切
板を介装して前記液体封入室を上下液室に画成し
、該仕切板にオリフイスを形成して上下液室を連
通せしめてなる液体減衰式防振装置において、 オリフイスの上下液室への開口部を除く仕切板
の両面に、該面に密接する可撓性の弾性薄膜を周
縁部シール状態に装着し、この両弾性薄膜内の仕
切板に貫通孔を設けるとともにこの貫通孔を外気
と連通せしめ、さらに前記弾性可撓部材の外面と
有底の受支器体との間を空気の給排可能な空気室
となし、この空気室内を負圧状態にしたとき、前
記弾性薄膜が仕切板より離間して仕切板との間に
小空気室を形成するようになしたことを特徴とす
る液体減衰式防振装置。 ２ 前記弾性薄膜は、ゴム製基体に静荷重が負荷
されていない状態において、該弾性薄膜と仕切板
の間に空隙を有し、静荷重が負荷された状態で仕
切板に密接状態となる請求項１に記載の液体減衰
式防振装置。 ３ 弾性薄膜の外側にその動きを制限する通水自
在なストツパー部材が配されてなる請求項１また
は２に記載の液体減衰式防振装置。[Claims for Utility Model Registration] 1. A rubber base for vibration isolation and an elastic flexible member are combined to form a chamber therein, and a liquid is sealed in the chamber, and between the rubber base and the elastic flexible member. In a liquid damping type vibration isolating device, the liquid-filled chamber is divided into upper and lower liquid chambers by interposing a partition plate between the upper and lower liquid chambers, and an orifice is formed in the partition plate to communicate the upper and lower liquid chambers. A flexible elastic thin film is attached to both sides of the partition plate excluding the opening to the chamber with the peripheral edges sealed, and a through hole is provided in the partition plate within both elastic thin films. communicates with the outside air, and further forms an air chamber between the outer surface of the elastic flexible member and the bottomed support body to which air can be supplied and discharged, and when this air chamber is brought into a negative pressure state, the elastic A liquid damping type vibration isolator characterized in that a thin film is spaced apart from a partition plate to form a small air chamber between the thin film and the partition plate. 2. Claim 1, wherein the elastic thin film has a gap between the elastic thin film and the partition plate when no static load is applied to the rubber base, and comes into close contact with the partition plate when a static load is applied. Liquid-damped vibration isolator described in . 3. The liquid damping type vibration isolator according to claim 1 or 2, further comprising a water-permeable stopper member disposed outside the elastic thin film to restrict its movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP800590U JPH0729323Y2 (en) | 1990-01-29 | 1990-01-29 | Liquid damping type anti-vibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP800590U JPH0729323Y2 (en) | 1990-01-29 | 1990-01-29 | Liquid damping type anti-vibration device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0399251U true JPH0399251U (en) | 1991-10-16 |
| JPH0729323Y2 JPH0729323Y2 (en) | 1995-07-05 |
Family
ID=31511657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP800590U Expired - Fee Related JPH0729323Y2 (en) | 1990-01-29 | 1990-01-29 | Liquid damping type anti-vibration device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0729323Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005048588A (en) * | 2004-09-09 | 2005-02-24 | Maruun Kensetsu Kk | Member for preventing jumping up of grating and apparatus for its attachment |
| JP2006233564A (en) * | 2005-02-24 | 2006-09-07 | Mie Jukogyo Kk | Jumping preventive mechanism for grating |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7416173B2 (en) | 2004-05-24 | 2008-08-26 | Tokai Rubber Industries, Ltd. | Pneumatically switchable type fluid-filled engine mount |
-
1990
- 1990-01-29 JP JP800590U patent/JPH0729323Y2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005048588A (en) * | 2004-09-09 | 2005-02-24 | Maruun Kensetsu Kk | Member for preventing jumping up of grating and apparatus for its attachment |
| JP4528071B2 (en) * | 2004-09-09 | 2010-08-18 | 丸運建設株式会社 | Grating jump-up prevention device and its mounting equipment |
| JP2006233564A (en) * | 2005-02-24 | 2006-09-07 | Mie Jukogyo Kk | Jumping preventive mechanism for grating |
| JP4514139B2 (en) * | 2005-02-24 | 2010-07-28 | 三重重工業株式会社 | Grating jumping prevention mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0729323Y2 (en) | 1995-07-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |