JPH04321833A - Liquid-type mount device - Google Patents

Abstract

PURPOSE:To stably develop a prescribed mount-vibration isolating characteristic by providing a thick wall-thickness part on the outer circumference of a rubber plastic plate, and retaining the thick wall-thickness part with a partitioning member, and also by forming a lip on the one surface of the rubber plastic plate, so that the rubber plastic plate can be restrained by pressing down the lip with the partitioning member in the direction of the plate thickness. CONSTITUTION:In an engine mount 16, when vibration is input between first and second supporting members 10 and 12, the fluid movement between a pressure-receiving chamber 46 and a balancing chamber 48 through an orifice passage 74 due to the difference in the internal pressure caused therebetween, and the fluid movement due to the elastic deformation of a rubber elastic plate 60 are caused respectively, and a prescribed vibration isolating effect can be developed. In this case, a lip (projection) 64 is provided to the rubber elastic plate 60 which is pressedly held by a partitioning member 44, and by pressedly restraining the lip 64 with the partitioning member 44, the dispersion both in the effective area and in the spring constant of the rubber elastic plate 60 can be restrained. And the rubber elastic plate 60 is strongly retained by the partitioning member 44 in the thick wall-thickness retaining part 62 which has been formed on the outer circumference of the lip 64, and the retaining force thereof is sufficiently secured.

Description

[Detailed description of the invention]

0001

TECHNICAL FIELD The present invention relates to a fluid-filled mount device that obtains a vibration damping effect based on the flow action of a fluid sealed inside, and particularly relates to a fluid-filled mounting device that achieves a vibration damping effect advantageously and stably. It is related to the technology that can be obtained by

0002

[Background Art] Conventionally, as a type of mount device that is interposed between members constituting a vibration transmission system, such as an automobile engine mount or a differential mount, and connects these two members in a vibration-proof manner, a mount device is used that is mounted at a predetermined distance from each other. The arranged first support metal fittings and second support metal fittings are connected by a rubber elastic body interposed between them, while sandwiching the partition member supported by the second support metal fittings, On one side, a part of the wall is made of a rubber elastic body to form a pressure receiving chamber in which internal pressure fluctuations are caused when vibration is input, and on the opposite side to the pressure receiving chamber, a part of the wall is made of a rubber elastic body. It has a structure in which an equilibrium chamber is formed of a flexible membrane and whose volume can easily be changed, and an orifice passage is provided to allow fluid to flow between the pressure receiving chamber and the equilibrium chamber. A so-called fluid-filled mounting device is known.

[0003] In addition, in such a fluid-filled mount device, it is possible to reduce or reduce the high dynamic spring of the mount characteristics caused by an increase in the flow resistance of the orifice passage when vibration is input in a high frequency range. In order to avoid this, for example, the partition member that partitions the pressure receiving chamber and the equilibrium chamber is allowed to deform by a predetermined amount based on the internal pressure difference between the pressure receiving chamber and the equilibrium chamber on both sides thereof. A rubber elastic plate is supported, and when high-frequency vibrations are input, a low dynamic spring effect is exerted based on the fluid flow action (hydraulic pressure absorption action) and resonance action produced by the elastic deformation of the rubber elastic board. It is effective to try to obtain it.

By the way, in order to support the rubber elastic plate on the partition member, as disclosed in US Pat. No. 4,511,126, the outer peripheral edge of the rubber elastic plate is vulcanized and bonded to the partition member. Although it is conceivable to hold the rubber elastic plate by holding it together, if the partition member is constituted by two press-formed plates or the like that are stacked on top of each other, it is possible to hold the outer peripheral edge of the rubber elastic plate under pressure by the partition member, Adopting such a pressure holding structure eliminates the need for special vulcanization and adhesion operations, which is advantageous in manufacturing the mount.

However, the inventors of the present application conducted numerous experiments and made detailed studies, and found that when the rubber elastic plate is supported against the partition member with such a pressure holding structure, the partition Due to variations in the size of the tightening allowance applied to the rubber elastic plate depending on the member, the characteristics of the rubber elastic plate may change and the desired mount vibration isolation characteristics may not be effectively exhibited. It has become clear that even a variation of only about 0.1 mm in the tightening allowance applied to the rubber elastic plate can have a non-negligible adverse effect on the vibration damping characteristics of the mount.

[0006] That is, the above-mentioned vibration damping effect exerted based on the deformation of the rubber elastic plate is determined by taking into consideration the spring constant, effective area, etc. of the rubber elastic plate.
If the rubber elastic plate is deflected or the position of the clamping support is changed due to dimensional errors in the manufacturing of the partition members and rubber elastic plates, or errors in combination when assembling them, the rubber Since the spring constant and effective area of the elastic plate change, the low dynamic spring effect against high frequency vibration due to the fluid flow action and resonance action that is exerted based on the elastic deformation of the rubber elastic plate is inhibited, and In this case, it becomes difficult to ensure a sufficient flow rate of the fluid flowing through the orifice passage, and there is a risk that the damping effect against low-frequency vibrations exerted based on the flow action of the fluid flowing within the orifice passage may be inhibited. There was.

[0007]

[Problem to be solved] Here, the present invention has been made against the background of the above-mentioned circumstances, and the problem to be solved is caused by errors in component dimensions, errors during assembly, etc. To provide a fluid-filled mount device that can effectively prevent changes in the spring constant, effective area, etc. of a rubber elastic plate, and can advantageously and stably obtain desired mount vibration damping characteristics. It is in.

[0008]

[Solution] In order to solve such problems, the gist of the present invention is to provide a first support metal fitting and a second support metal fitting arranged at a predetermined distance from each other. A part of the wall portion is made of the rubber elastic body on one side, with the partition member supported by the second support fittings being connected by the interposed rubber elastic body, and vibrating. There is a pressure receiving chamber filled with a predetermined incompressible fluid that causes internal pressure fluctuations during input, and on the other side, a part of the wall is made of a flexible membrane, making it easy to change the volume. In addition, an orifice passage is provided to communicate the pressure receiving chamber and the equilibrium chamber with each other. By disposing a rubber elastic plate with its outer periphery held under pressure against the partition member that partitions the space, the pressure-receiving chamber and the equilibrium chamber exerted on both sides of the rubber elastic plate are separated. In a fluid-filled mounting device that allows a predetermined amount of deformation based on an internal pressure difference, a thick wall portion is provided on the outer peripheral portion of the rubber elastic plate, and the thick wall portion is held by the partition member; A protrusion is formed on at least one surface of the rubber elastic plate, the protrusion is located at a predetermined distance on the inner circumferential side of the thick portion, protrudes at a predetermined height, and extends in the circumferential direction. The rubber elastic plate is restrained by being pressed down in the thickness direction by the partition member.

[0009]

[Operation/Effect] That is, in the fluid-filled mount device having the structure according to the present invention, the rubber elastic plate is restrained by the partition member at the region where the protrusions are formed, so that the elastic plate is restrained by the partition member. The pinching position can be advantageously defined, and variations in the interference caused by the partition member can be effectively absorbed and alleviated by the elastic deformation action of the protrusions.

Therefore, in the fluid-filled mount device according to the present invention, even if there is a dimensional error in the partition member or the rubber elastic plate, the influence on the spring characteristics of the rubber elastic plate is minimized as much as possible. This can be reduced or avoided, and as a result, the desired mount vibration isolation characteristics can be advantageously and stably exhibited.

[0011]

EXAMPLES In order to clarify the present invention more specifically, examples of the present invention will be described in detail below with reference to the drawings.

First, FIG. 1 shows an embodiment in which the present invention is applied to an automobile engine mount. In this figure, 10 and 12 are a first support metal fitting and a second support metal fitting, which are arranged facing each other at a predetermined distance, and are supported by a rubber elastic body 14 interposed between them. , elastically coupled. And, in such an engine mount 16,
The first support metal fitting 10 is attached to the power unit side, and the second support metal fitting 12 is attached to the vehicle body side, so that the power unit is supported against vibration with respect to the vehicle body. Further, when the engine mount 16 is mounted, the power unit load is applied to the engine mount 16, so that the first support fitting 10 and the second support fitting 12 are moved in the approaching direction by a predetermined distance, and The engine mount 1 is positioned substantially coaxially, and under such a mounting condition, the engine mount 1
6, the main vibration load to be vibration-proofed is inputted in the substantially opposing direction of the first support metal fitting 10 and the second support metal fitting 12.

More specifically, the first support fitting 10 is formed in a substantially truncated conical shape, and has an outer flange-like shape that projects radially outward with a predetermined width at its large diameter end. An annular protrusion 18 is integrally provided. Further, a female threaded portion 20 that projects outward in the axial direction is integrally formed on the axial end portion of the first support fitting 10 on the large diameter side, and is screwed into the female threaded portion 20. The first support fitting 10 can be attached to a power unit (not shown) by the attached bolt member. Furthermore, on the protruding end surface of the female threaded portion 20,
A mounting plate 24 on which a positioning protrusion 22 is erected is fixedly attached, and this mounting plate 24
supports a protective skirt 25 that covers the top of the mount.

The first support fitting 10 includes a rubber elastic body 1 having an approximately truncated conical shape as a whole.
4, it is vulcanized and bonded in a state where it enters in the axial direction from the end face on the small diameter side. Furthermore, a connecting fitting 26 having a substantially cylindrical shape is vulcanized and bonded to the outer circumferential surface of the large-diameter end of the rubber elastic body 14 . That is, the rubber elastic body 14 has the first support fitting 10 at its small diameter end.
The connecting fittings 26 are each vulcanized and bonded to the outer circumferential surface of the large-diameter end to form an integral vulcanized molded product. Note that the rubber elastic body 14 is provided with a recess 28 that opens at the end surface on the large diameter side.

On the other hand, the second support fitting 12 is composed of an inner metal fitting 30 having a substantially thin-walled cylindrical shape and an outer metal fitting 32 having a substantially thick-walled cylindrical shape with a bottom. The inner metal fitting 30 has a stepped portion 34 in the axially intermediate portion.
It has a stepped cylindrical shape consisting of a small diameter part 36 and a large diameter part 38. Further, a thin sealing rubber layer 40 is provided on the inner peripheral surface of the large diameter portion 38 over almost the entire surface, while a diaphragm 42 as a flexible membrane is provided at the opening on the small diameter portion 36 side. is vulcanized and bonded at its outer peripheral edge, and the small diameter portion 3 is attached to the diaphragm 42.
The opening on the 6th side is fluid-tightly closed.

This inner metal fitting 30 is fitted at its large diameter portion 38 to the connecting metal fitting 26 constituting the integrally vulcanized molded product, and further, by drawing or the like, the outer periphery of the connecting metal fitting 26 is It is fitted and fixed by being crimped onto the surface. As a result, the opening on the large diameter portion 38 side of the inner fitting 30 is fluid-tightly closed by the rubber elastic body 14, thereby forming a sealed chamber inside the inner fitting 30. In addition, a predetermined incompressible fluid is sealed in the sealed chamber by inserting and fitting the inner fitting 30 into the connecting fitting 26 into the fluid, and the sealed chamber is configured as a fluid chamber. There is. In addition,
As such an incompressible fluid, for example, water, alkylene glycol, polyalkylene glycol, silicone oil, or a mixture thereof is preferably employed in order to effectively obtain a vibration damping effect based on the fluid flow action described below. It will be done.

Furthermore, inside the fluid chamber thus formed, there is a partition member 4 having an approximately disk shape as a whole.
4 is accommodated, and its outer peripheral edge is held between the stepped part 34 of the inner fitting 30 and the axial end surface of the connecting fitting 26, so that it is fixed to the inner fitting 30. is supported by The fluid chamber is partitioned by this partition member 44, and thus the partition member 44
On the side of the first support fitting 10, a part of the wall is made of a rubber elastic body 14, and internal pressure fluctuations are induced based on the elastic deformation of the rubber elastic body 14 when vibration is input. A pressure receiving chamber 46 is formed, and on the opposite side from the pressure receiving chamber 46, a part of the wall is constituted by a diaphragm 42, and a change in volume is easily allowed based on the deformation of the diaphragm 42. An equilibrium chamber 48 is formed.

[0018] Also, in this case, such a partition member 44
As shown in FIGS. 2 and 3, the upper metal fitting 52 has a substantially annular plate shape with a through hole 50 in the center, a circular recess 54 in the center, and a circular recess 54 in the outer peripheral edge. and substantially disk-shaped lower metal fittings 58 each having an annular recess 56 are stacked on top of each other in the axial direction and are welded by spot welding or the like as necessary. Further, a rubber elastic plate 60 is interposed between the upper metal plate 52 and the lower metal plate 58.

The rubber elastic plate 60 is formed into a substantially disk shape, as shown in enlarged form in FIGS. 4 and 5. Further, an annular holding part 62 as a thick walled part is provided on the outer peripheral edge of the holding part 62 and has a substantially circular cross section. Annular lips 64, 64, each of which has a tapered cross-sectional shape and project at a predetermined height and extend continuously in the circumferential direction, are integrally formed approximately concentrically at a predetermined distance apart. Furthermore, a substantially rectangular block-shaped partition wall 6 is provided on the outer peripheral edge of the rubber elastic plate 60 at one location on the periphery.
6 is integrally formed in a protruding manner. In addition, in FIGS. 4 and 5, 68 is a seal lip formed on the surface of the partition wall 66.

As shown in FIGS. 2 and 3, such a rubber elastic plate 60 is arranged between the radially outer side of the through hole 50 in the upper metal plate 52 and the circular recess 54 in the lower metal plate 58. The holding portion 62 is held under pressure between the outside in the radial direction, so that a predetermined amount of elastic deformation in the thickness direction is allowed. On the other hand,
The partition wall 66 is fitted into the annular recess 56 of the lower metal plate 58. In addition, in the figure, 69 is a hole for positioning the rubber elastic plate 60 with respect to the lower metal plate 58.

That is, the partition member 4 is formed by overlapping the upper and lower metal plates 52 and 58 with the rubber elastic plate 60 sandwiched therebetween.
4, an annular passage extending in the circumferential direction is formed by covering the annular recess 56 of the lower metal plate 58 with the upper metal plate 52 at its outer peripheral edge. The annular passage is partitioned at one point on the circumference by a partition wall 66, and communication holes 70, 72 are formed in the upper and lower metal fittings 52, 58 on both sides of the partition wall 66. An orifice passage 7 extending in the circumferential direction for a length of a little less than one circumference connects the pressure receiving chamber 46 and the equilibrium chamber 48 with each other by communicating with the pressure receiving chamber 46 and the equilibrium chamber 48 through the
4 is formed.

In addition, in the central part of the partition member 44, a through hole 50 of the upper metal plate 52 and a circular recess 5 of the lower metal plate 58 are formed.
4 is fluid-tightly closed by a rubber elastic plate 60, and the internal pressure of the pressure receiving chamber 46 and the equilibrium chamber 48 is applied to both sides of the rubber elastic plate 60. A through hole 76 provided in the center of the through hole 50 and the lower plate metal fitting 58
Through this, each of them is affected. Then, the rubber elastic plate 60 is elastically deformed based on the internal pressure difference between the pressure receiving chamber 46 and the equilibrium chamber 48.
Fluid flow between the chambers 46, 48 is substantially permitted.

[0023] When vibration is input, the orifice passage 74
Based on the resonance effect of the fluid flowing through the
While a high damping effect against low frequency and large amplitude vibrations is exhibited, high frequency and small amplitude vibrations are suppressed based on the flow action (hydraulic pressure absorption action) or resonance action of the fluid that is caused to flow due to the elastic deformation of the rubber elastic plate 60. Therefore, a low dynamic spring effect can be exhibited. In addition, the vibration damping effect exerted by the action of the orifice passage 74 and the rubber elastic plate 60 can be achieved by appropriately setting the cross-sectional area and length of the orifice passage 74 and the spring constant and effective area of the rubber elastic plate 60. It will be tuned by this, but in particular,
In this embodiment, based on the resonance effect of the fluid flowing through the orifice passage 74, a high damping effect against low-frequency large-amplitude vibrations such as shake and bounce is achieved, and the fluid is caused to flow in accordance with the elastic deformation of the rubber elastic plate 60. Based on the flow action or resonance action of the fluid, the low dynamic spring effect is tuned so that it can be effectively exerted on high-frequency, small-amplitude vibrations such as muffled sounds.

[0024] Furthermore, the rubber elastic plate 60
In this case, under the arrangement condition between the upper and lower plate metal fittings 52 and 58,
The lips 64, 64 are connected to the upper and lower plate fittings 52, 58.
The plate is held down in the thickness direction to the extent that it does not collapse completely. This allows the rubber elastic plate 60 to
It is restrained by the upper and lower metal plates 52 and 58,
Substantially only the inner portions of such lips 64,64
It is designed to function as a rubber elastic plate that can be elastically deformed. Note that in order to effectively restrain the rubber elastic plate 60, the upper and lower plate fittings 52, 58 should be adjusted such that the height of the lips 64, 64 is approximately 1/2 of the free protruding height.
It is desirable to set a tightening allowance according to

That is, in this way, the rubber elastic plate 60 is connected to the upper and lower metal fittings 52, 58 by its lips 64, 64.
Since the upper and lower metal plates 52 and 58 are clamped and restrained, the restraint positions by the upper and lower metal plates 52 and 58 can be advantageously defined, and variations in the restraint positions due to manufacturing dimensional errors etc. can be prevented as much as possible. It can be done. In addition, these lips 64, 64 can advantageously absorb variations in the tightening margin due to the upper and lower plate fittings 52, 58 based on their elastic deformation.
Variations in the amount of deformation caused in the rubber elastic plate 60 due to the squeezing action can also be reduced or prevented as much as possible.

Furthermore, on the outer peripheral surface of the inner metal fitting 30,
The outer metal fitting 32 is externally inserted and integrally attached. This outer metal fitting 32 has a generally thick-walled cylindrical shape with a bottom as a whole, and the cylindrical wall portion is connected to a small diameter portion 80 on the bottom side with a stepped portion 78 formed in the axially intermediate portion in between. , a large-diameter portion 82 on the opening side, and a stepped cylindrical shape, and a mounting bracket 84 is fixed to the outer circumferential surface thereof. Since the outer metal fitting 32 is fitted and fixed to the outer peripheral surface of the inner metal fitting 30, the second support metal fitting 12 is constituted by the inner metal fitting 30 and the outer metal fitting 32. Moreover, the second support metal fitting 12 is attached to the vehicle body (not shown) via a bracket 84 provided on the outer metal fitting 32. Note that the attachment of the outer metal fitting 32 to the inner metal fitting 30 is normally performed outside the fluid.

A stopper fitting 86 having a substantially stepped cylindrical shape is inserted into the opening side end of the outer fitting 32 constituting the second support fitting 12 on its large diameter side. The connecting fitting 26 is caulked and held in the axial direction by the outer fitting 32 with the side end surface in contact with the axial end surface of the connecting fitting 26 . Also, thereby, the connecting fitting 26
This makes it possible to prevent the metal member from coming off in the axial direction from the inner metal fitting 30.

Furthermore, in the stopper metal fitting 86, the small diameter portion thereof extends in the axial direction, and the rubber elastic body 1
4 and the outside of the first support fitting 10, and an annular protrusion provided on the first support fitting 10 that protrudes radially inward with a predetermined width is provided at the opening on the small diameter side. An inward protrusion 88 is integrally formed with the portion 18 and is positioned opposite to the portion 18 at a predetermined distance in the vibration input direction. When the mount is attached, the annular protrusion 18 and the inner protrusion 88 come into contact with each other via the buffer rubber 19, thereby separating the first support metal fitting 10 and the second support metal fitting 12. The amount of relative displacement in this direction can be regulated.

Therefore, in the engine mount 16 having the above-described structure, when vibration is input between the first support metal fitting 10 and the second support metal fitting 12 while the engine mount 16 is mounted, the receiving pressure will be reduced. Based on the internal pressure difference induced between the chamber 46 and the equilibrium chamber 48, fluid flows between the two chambers 46 and 48 through the orifice passage 74 and due to the elastic deformation of the rubber elastic plate 60. and are brought forth respectively,
Therefore, as described above, a predetermined vibration damping effect can be achieved based on the flow action or resonance action of these fluids.

In this engine mount 16, lips 64, 64 are provided on the rubber elastic plate 60 which is supported under pressure by the partition member 44, and the lips 64, 64 are pressed and restrained by the partition member. As a result, variations in the effective area and spring constant of the rubber elastic plate 60 caused by component dimensional errors, tightening margin dimensional errors, etc. can be extremely effectively suppressed by the restraining action and elastic deformation action by the lips 64, 64. This can be suppressed or prevented and can be advantageously made to match the target design value, thereby reducing the fluid flow effect caused by the elastic deformation of the rubber elastic plate 60 as described above. The vibration damping effect due to the resonance effect can be exhibited extremely effectively and stably.

Moreover, as the deformation of the rubber elastic plate 60 and the change in the spring constant can be advantageously prevented, the orifice passage caused by excessive deformation of the rubber elastic plate 60 when low frequency, large amplitude vibration is inputted can be advantageously prevented. A decrease in the amount of fluid flowing through the orifice passage 74 can be extremely effectively prevented, and as a result, the vibration damping effect due to the resonance effect of the fluid flowing through the orifice passage 74 can be effectively and stably exhibited. It can be done.

[0032] Furthermore, in such a rubber elastic plate 60,
A thick holding portion 6 formed on the outer peripheral side of the lips 64, 64
2, since it is firmly held by the partition member 44, its holding force can be sufficiently ensured even if excessive hydraulic pressure is repeatedly applied.

In particular, in the engine mount 16 of this embodiment, lips (projections) 64 for restraining the rubber elastic plate 60 are provided on both sides of the rubber elastic plate 60 in the circumferential direction. Since the lip is formed protrudingly in a continuous annular shape, the above-mentioned effect of the lip is greater than in the case where such a lip is formed on one side of the rubber elastic plate or in a discontinuous annular shape in the circumferential direction. Rubber elastic plate 60 based on restraint action and elastic deformation action, such as
The effect of preventing variations in the effective area and spring constant can be more effectively exhibited.

Although the embodiments of the present invention have been described in detail above, these are literal illustrations, and the present invention is not to be construed as being limited to these specific examples.

For example, in the above embodiment, the rubber elastic plate 60
Continuous protrusions (lips 64) in the circumferential direction were formed on both sides of the rubber elastic plate, but such protrusions were formed only on one side of the rubber elastic plate, or discontinuous in the circumferential direction. It is also possible to form it so as to extend in an annular form, and even with such a form of protrusion, the rubber elastic plate 60 as described above can be
The effect of preventing variations in the effective area and spring constant can be obtained to some extent.

In addition, the shape, size, number, etc. of the through holes (50, 76) formed in the partition member for applying the internal pressure of the pressure receiving chamber and the equilibrium chamber to both sides of the rubber elastic plate are determined by the mount. It is determined as appropriate depending on the vibration damping characteristics required for the purpose of the invention, and should not be construed as being limited to those of the above embodiments.

Furthermore, the specific structure and number of orifice passages are by no means limited to those in the embodiments described above, and can be changed as appropriate depending on the vibration-proofing characteristics required of the mount. be.

In addition, in the above embodiment, a specific example of the application of the present invention to an automobile engine mount was shown, but the present invention is also applicable to automobile differential mounts, body mounts, or non-automobile engine mounts. It goes without saying that the present invention can be advantageously applied to various mounting devices.

[0039] In addition, although not listed one by one, the present invention includes:
Based on the knowledge of those skilled in the art, it can be implemented with various changes, modifications, improvements, etc.
It goes without saying that all such embodiments are included within the scope of the present invention as long as they do not depart from the spirit of the present invention.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view showing an engine mount for an automobile as an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view showing a partition member constituting the engine mount shown in FIG. 1;

FIG. 3 is a plan view of the partition member shown in FIG. 2;

4 is a plan view showing a rubber elastic plate that constitutes the partition member shown in FIG. 3; FIG.

FIG. 5 is a cross-sectional view taken along line V-V in FIG. 4;

[Explanation of symbols]

10: First support metal fitting 12:
Second support fitting 14: Rubber elastic body 1
6: Engine mount

Claims (1)

[Claims] Claim 1: A first support metal fitting and a second support metal fitting arranged at a predetermined distance from each other are connected by a rubber elastic body interposed between them, and the second support metal fitting On one side, with the partition member supported by On the other side, a part of the wall is made of a flexible membrane to easily allow volume changes, and a predetermined incompressible fluid is sealed inside. A rubber elastic plate is attached to the outer peripheral edge of the partition member that partitions the pressure receiving chamber and the equilibrium chamber. A fluid-filled type that allows the rubber elastic plate to undergo a predetermined amount of deformation based on the internal pressure difference between the pressure receiving chamber and the equilibrium chamber exerted on both sides of the rubber elastic plate. In the mounting device, a thick wall portion is provided on the outer peripheral portion of the rubber elastic plate, and the thick wall portion is held by the partition member, and an inner portion of the thick wall portion is provided on at least one surface of the rubber elastic plate. The rubber elastic plate is restrained by forming protrusions located at a predetermined distance on the circumferential side, protruding at a predetermined height and extending in the circumferential direction, and pressing the protrusions in the thickness direction by the partition member. A fluid-filled mounting device characterized by: