JPH0293543U

JPH0293543U -

Info

Publication number: JPH0293543U
Application number: JP281489U
Authority: JP
Priority date: 1989-01-13
Filing date: 1989-01-13
Publication date: 1990-07-25

Description

[Brief explanation of the drawing]

第１図は本考案の第１実施例の全体構成を示す
正断面図、第２図は第１実施例の要部を示す拡大
正断面図、第３図は第２図の平面図、第４図は本
考案の第２実施例の構成を示すブロツク図、第５
図は従来の流体入り防振装置の一例を示す正断面
図、第６図は流体入り防振装置のモデルを表す図
、第７図は従来の防振装置に種々の周波数の振動
が入力されたときのバネ定数及びロスフアクタの
変動を常温時及び高温時別に示すグラフ、第８図
は第７図の特性を有する防振装置の防振特性を示
すグラフである。１……防振装置（流体入り防振装置）、２ａ，
２ｂ……枠体、３……弾性体、５……第１流体室
、６……仕切板、７……ダイヤフラム、８……第
２流体室、１０……空気室、１２……絞り、１４
……円筒体、１５……摺動体、１６……管体、１
７……コア（錐体）、１９……管体調整部材（管
体調整手段）、２０……温度センサ、２１……振
動センサ、２２……コントローラ、２３……電熱
線。 Fig. 1 is a front sectional view showing the overall configuration of the first embodiment of the present invention, Fig. 2 is an enlarged front sectional view showing main parts of the first embodiment, and Fig. 3 is a plan view of Fig. 2; Figure 4 is a block diagram showing the configuration of the second embodiment of the present invention.
The figure is a front sectional view showing an example of a conventional fluid-filled vibration isolator, Figure 6 is a diagram showing a model of a fluid-filled vibration isolator, and Figure 7 is a diagram showing vibrations of various frequencies input to a conventional vibration isolator. FIG. 8 is a graph showing the vibration damping characteristics of the vibration isolating device having the characteristics shown in FIG. 7. 1... Vibration isolator (fluid-filled vibration isolator), 2a,
2b... Frame body, 3... Elastic body, 5... First fluid chamber, 6... Partition plate, 7... Diaphragm, 8... Second fluid chamber, 10... Air chamber, 12... Throttle, 14
... Cylindrical body, 15 ... Sliding body, 16 ... Tube body, 1
7... Core (cone), 19... Tube adjustment member (tube adjustment means), 20... Temperature sensor, 21... Vibration sensor, 22... Controller, 23... Heating wire.

Claims

[Claims for Utility Model Registration] A rubber-like elastic body between a frame on the vibrating body side and a frame on the support side, the volume of the first fluid chamber therein fluctuating in accordance with the relative movement of these two frames. and a partition plate having an aperture communicating with the first fluid chamber is attached to any of the frame bodies, communicating with the first fluid chamber via the aperture and having a volume of the first fluid chamber. A fluid-filled vibration isolator comprising: a second fluid chamber whose volume fluctuates in response to fluctuations; and a fluid filled in the first and second fluid chambers, wherein the aperture is a cone; a tubular body that communicates with the first and second fluid chambers inside thereof in a surrounding state and whose axial length is variable, and the axial length of the tubular body is variable depending on the temperature of the fluid. A fluid-filled vibration isolator characterized in that it is provided with a tubular adjustment means that can be changed.