JP2652740B2 - Fluid-filled mounting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluid-filled mounting device, and more particularly to a fluid-filled mounting device provided with a partition member formed by combining a plurality of members for forming an orifice passage and the like.

[0002]

2. Description of the Related Art Conventionally, as one type of a vibration-proof connection or a vibration-proof support device, as disclosed in Japanese Patent Application Laid-Open No. 57-9340, a first mounting bracket arranged at a predetermined distance from each other. And the second mounting bracket are connected by a rubber elastic body interposed therebetween, and vibration is input to one side of the partition member supported by the second mounting bracket. The pressure receiving chamber to be formed has a variable-capacity equilibrium chamber formed on the other side.A predetermined incompressible fluid is sealed in the pressure receiving chamber and the equilibrium chamber, and both chambers are mutually connected by an orifice passage. 2. Description of the Related Art A so-called fluid-filled mounting device having a structure of communicating with each other is known. Such a fluid-filled mounting device can provide an excellent vibration damping effect, which cannot be obtained only with a rubber elastic body, based on the resonance action of a fluid flowing through an orifice passage. And so on.

In such a fluid-filled mounting device, various types of vibration isolation are performed based on the fluid flow or resonance between a pressure receiving chamber and an equilibrium chamber separated by a partition member. In general, because of its effectiveness,
Various mechanisms for permitting or controlling the flow of the fluid between the pressure receiving chamber and the equilibrium chamber are provided for the partition member. Specifically, as shown in the above-mentioned publication, an orifice passage communicating between the pressure receiving chamber and the equilibrium chamber is formed in such a partition member, or a small-amplitude internal pressure fluctuation in the pressure receiving chamber is absorbed and controlled. A movable member for reduction is held.

Further, such a partition member is constituted by a plurality of members in order to secure a sufficient length of the orifice passage and to dispose a movable member therein. There are many. In addition, in the conventional mounting device, as shown in the above-mentioned publication, generally, a partition member having a structure composed of a plurality of press-formed products or cast products is used, and these members are welded or swaged. What is integrated by processing or the like is used.

However, when such a partition member composed of a plurality of members is employed, a troublesome work such as welding or swaging is required to assemble the partition member before assembling it to the mount body. Therefore, there is a problem that the mount productivity is unavoidably deteriorated.

It is also conceivable that a plurality of members constituting such a partitioning member are not integrated beforehand, but are integrated by being clamped and supported by the mount body when assembled to the mount body. . However, in such a method, the operation of assembling the mount in a fluid performed for enclosing the fluid is troublesome,
It is inevitable that mount manufacturability will deteriorate, and it will be difficult to perform relative positioning of a plurality of members constituting the partition member. It was not an effective method when it was necessary to provide support.

[0007]

Here, the present invention has been made in view of the above circumstances, and a problem to be solved is to provide a partition member formed by combining a plurality of members to a mount body. It is an object of the present invention to provide a fluid-filled mounting device that can be easily integrated with excellent positioning accuracy before assembling, and can exhibit excellent mount manufacturability.

[0008]

According to the present invention, in order to solve such a problem, a first mounting bracket and a second mounting bracket disposed at a predetermined distance are interposed therebetween. while linking a rubber elastic body has, superimposed a plurality of members
The partition member formed integrally and integrally is supported by the second mounting bracket, and a part of the wall portion is formed of the rubber elastic body on the first mounting bracket side with respect to the partition member. And a part of a wall portion is formed of a flexible film on a side opposite to the pressure receiving chamber with the partition member interposed therebetween, and an orifice is formed with respect to the pressure receiving chamber. The equilibrium chamber communicated through the passage is formed, and the pressure receiving chamber and
And an equilibrium chamber filled with an incompressible fluid.
At least one surface of the member is not in the pressure receiving chamber.
A rubber film or a rubber plate which receives the action of the compressive fluid is provided.
In the fluid-filled mounting device having the following structure, a plurality of members forming the partition member are formed of a thermoplastic resin, respectively, and are adjacent to each other in a direction in which they are overlapped.
A recess in one of the mating members,
On the other hand, the other member is fitted into the recess and housed.
And the other in the overlapping direction.
The other member can contact the one member.
The rubber film or rubber plate is placed in the recess of the one member.
The rubber film or the outer peripheral edge of the rubber plate is
Between the bottom of the recess of the material and the tip of the protrusion of the other member
The feature is that the members are integrally fixed to each other by ultrasonic welding in the sandwiched state .

[0009]

In the fluid-filled mounting device having the structure according to the present invention, a plurality of members constituting the partition member are integrated by ultrasonic welding. The partition member can be integrated very quickly and easily.

In addition, since the partition member is integrated before assembly to the mount body, it is possible to easily and sufficiently secure the relative positioning accuracy of the plurality of members during the integration. You can.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, in order to clarify the present invention more specifically, embodiments of the present invention will be described with reference to the drawings.
It will be described in detail.

First, FIG. 1 shows an engine mount as one embodiment of the present invention. In this figure, reference numerals 10 and 12 denote a first mounting bracket and a second mounting bracket, respectively, which are opposed to each other with a predetermined distance therebetween. The first mounting member 10 and the second mounting member 12 are elastically connected by a main rubber elastic body 14 interposed therebetween.

In such an engine mount, the first mounting bracket 10 and the second mounting bracket 12 are provided.
In this case, the power unit is attached to one of the vehicle body side and the power unit side, and is interposed between the vehicle body and the power unit, whereby the power unit is supported on the vehicle body with vibration isolation. In such an engine mount, the power unit weight is exerted on the engine mount in such a direction that the first and second mounting brackets 10 and 12 are substantially opposed to each other (substantially up and down in FIG. 1). An anti-vibration effect is exerted against vibrations input in a direction substantially opposite to the first and second mounting members 10 and 12.

More specifically, the first fitting 10
Has an inverted truncated cone shape. An axially protruding mounting bolt 16 is fixedly provided at the center of the large-diameter end surface of the first mounting bracket 10, and the first mounting bracket 10 is moved by the mounting bolt 16 to the power unit side. It can be attached to.

A rubber elastic body 14 is bonded to the first mounting member 10 by vulcanization. The main rubber elastic body 14 has a large diameter substantially truncated cone shape as a whole, and has a concave portion 18 opened at the large diameter side end surface therein. The first mounting member 10 is embedded and vulcanized and bonded to the small-diameter end portion, while the cylindrical connecting metal member 20 has a cylindrical shape with respect to the outer peripheral surface of the large-diameter end portion. Are formed as an integral vulcanized molded product obtained by vulcanization bonding.

On the other hand, the second mounting member 12 includes a cylindrical metal member 22 having a substantially cylindrical shape and a bottom metal member 24. The cylindrical metal fitting 22 has a stepped portion 26 at a central portion in the axial direction, and is formed in a stepped cylindrical shape including a small diameter portion 28 and a large diameter portion 30. An inner flange-shaped support piece 32 is integrally provided on the periphery of the opening on the small-diameter portion 28 side of the cylindrical metal fitting 22.

The bottom fitting 24 has a substantially shallow bottomed cylindrical shape, and an outer flange-shaped locking piece 34 is integrally provided on the periphery of the opening. Then, the locking piece 34 is superimposed on the support piece 32 of the tubular metal fitting 22 from the inside, and the bottom fitting 24 is attached to the cylindrical fitting 22.
Supported by Thereby, the second mounting member 12 having a cylindrical shape with a bottom as a whole is formed.

Further, a plurality of air vent holes 38 are provided in the bottom wall of the bottom fitting 24, and mounting bolts 36 protruding outward are fixedly provided in the center of the bottom wall. ing. And, with this mounting bolt 36,
The second mounting bracket 12 is mounted on the vehicle body side.

In the second mounting member 12, the large-diameter portion 30 of the cylindrical metal member 22 is externally fitted to the connecting metal member 20 which is vulcanized and bonded to the main rubber elastic body 14, and the large-diameter portion is further attached. The peripheral edge of the opening of the portion 30 is caulked and fixed to the axial end surface of the connection fitting 20. Thereby, the second mounting member 12 is fixed to the connecting member 20, so that the second mounting member 12 is elastically connected to the first mounting member 10 via the main rubber elastic body 14. It is.

The partition member 4 having a substantially thick disk shape as a whole is provided inside the second mounting member 12.
0 is provided. The partitioning member 40 includes the upper member 4
2 and a middle member 44 and a lower member 46.
The upper member 42 has a substantially disk shape, and integrally has an outer flange-like holding portion 47 protruding on the outer peripheral surface and a cylindrical tube wall portion 48 protruding downward. ing. The middle member 44 has a substantially thick disk shape and is recessed in the overlapping direction and opened upward, and a second recess 50 opened downward. 52. Furthermore, the lower member 46 is
It has a substantially annular plate shape, and integrally has a cylindrical tubular wall portion 54 protruding upward at an inner peripheral edge portion. Then, the cylindrical wall portion 48 of the upper member 42 is
4 is inserted into the first recess 50, while the cylindrical wall portion 54 of the lower member 46 is inserted into the second recess 52 of the middle member 44 so that the upper member 42 and the middle member 44, the lower member 46 are superimposed each other in the axial direction, further the overlapped
They are brought into contact with each other in the joining direction and assembled.

In this manner, the partition member 40 is configured such that the holding member 47 of the upper member 42 is held between the step 26 of the cylindrical metal fitting 22 and the connecting metal fitting 20, so that the lower member 46 is attached to the bottom metal fitting 24. Is fixedly assembled in the small-diameter portion 28 of the cylindrical metal fitting 22 in a state in which it is brought into contact with the locking piece portion 34 of FIG.

Thus, a pressure receiving chamber 56 is formed on the first mounting member 10 side of the partition member 40, the pressure receiving chamber 56 having a part of the wall formed of the main rubber elastic body 14.

A first rubber film 58 as a flexible film having a thin disk shape is disposed on the bottom fitting 24 side with respect to the partition member 40, and the outer peripheral edge thereof is formed. Is held between the abutting surfaces of the partition member 40 and the bottom fitting 24. Thereby, with the first rubber film 58 interposed therebetween,
On the partition member 40 side, a first equilibrium chamber 60 in which a part of the wall portion is formed of the first rubber film 58 is formed, and on the opposite side to the first equilibrium chamber 60, a first equilibrium chamber 60 is formed. An air chamber 62 that allows deformation of one rubber film 58 is formed.

Further, a second rubber film 64 having a thin disk shape is disposed in the first recess 50 of the middle member 44, and the outer peripheral edge of the second rubber film 64 is formed as a cylinder of the upper member 42. The pressure is held between the distal end surface of the wall portion 48 and the bottom surface of the first recess 50 of the middle member 44. Thereby, a second equilibrium chamber 66 in which a part of the wall is constituted by the second rubber film 64 is formed on the upper member 42 side with the second rubber film therebetween. On the side opposite to the second equilibrium chamber 66, an action chamber 68 that allows the deformation of the second rubber film 64 is formed.

Further, a predetermined incompressible fluid is sealed in each of the pressure receiving chamber 56, the first equilibrium chamber 60, and the second equilibrium chamber 66. Thereby, the pressure receiving chamber 5
In the case of 6, when the vibration is input, the internal pressure fluctuation is caused based on the elastic deformation of the main rubber elastic body 14,
On the other hand, in the first equilibrium chamber 60 and the second equilibrium chamber 66, the volume change is allowed based on the deformation of the first rubber film 58 and the second rubber film 64, respectively. Fluctuations will be absorbed and reduced.

Annular flow paths are formed between the superposed surfaces of the upper member 42 and the middle member 44 and between the superposed surfaces of the middle member 44 and the lower member 46. ing. The flow paths are communicated with each other, thereby forming a first orifice passage 70 extending as a whole with a length of one or more in the circumferential direction, and communicating the pressure receiving chamber 56 and the first equilibrium chamber 60 with each other. Have been.

Further, the upper member 42 extends through the substantially central portion in the axial direction, and extends through the pressure receiving chamber 56 and the first equilibrium chamber 60.
And a second orifice passage 72 which communicates with the other.

At the time of vibration input, a predetermined vibration damping effect can be exerted based on the resonance action of the fluid flowing through the first and second orifice passages 70, 72. In this embodiment,
Based on the resonance action of the fluid caused to flow through the first orifice passage 70, a high damping effect on low-frequency large-amplitude vibration such as shake and bounce can be obtained. The length of the first orifice passage 70 and the length of the second orifice passage 72 are reduced so that a low dynamic spring effect against medium to high frequency vibrations such as idling vibration can be obtained based on the resonance action of the fluid to be flown. The area has been tuned.

On the other hand, the middle member 44 is formed with an air passage 74 extending through the inside thereof in the radial direction and opening to the working chamber 68. However, a valve (not shown) is alternatively connected to the atmosphere and a negative pressure source. When the air passage 74 is communicated with the atmosphere, a predetermined volume of the working chamber 68 appears, and the deformation of the second rubber film 64 is allowed.
When the air passage 74 is communicated with the negative pressure source, the second rubber film 64 is suction-adsorbed to the bottom surface of the first recess 50 of the middle member 44, and the action chamber 68 substantially disappears. As a result, the deformation of the second rubber film 64 is prevented.

Therefore, when the air passage 74 is communicated with the atmosphere, the volume of the second equilibrium chamber 66 is made variable, so that when vibration is input, the fluid flowing through the second orifice passage 72 is The flow is effectively generated,
The low dynamic spring effect for middle to high frequency vibration such as idling vibration can be effectively exhibited. On the other hand, when the air passage 74 is in communication with the negative pressure source, the volume of the second equilibrium chamber 66 is not changed, and the second orifice passage 7
The flow of the fluid through the second orifice 2 is substantially prevented, so that at the time of vibration input, the flow of the fluid is advantageously generated through the first orifice passage 52, so that the vibration against the low-frequency large-amplitude vibration such as shake and bounce is generated. The damping effect can be exerted effectively.

That is, in the mount of the present embodiment, the connection of the air passage 74 to the atmosphere or the negative pressure source can be switched to control the vibration isolation characteristics of the mount.

The above-mentioned upper member 42, middle member 44 and lower member 46 constituting such a partition member 40 are all made of a thermoplastic resin material such as nylon, POM, PPS or the like. It is formed.

The upper member 42 and the middle member 44
Before the lower member 46 is assembled to the second mounting member 12, the lower member 46 is axially overlapped and assembled in advance as shown in FIGS.
It will be joined integrally. That is, the cylinder of the upper member 42
The wall 48 is fitted into the first recess 50 of the middle member 44
The end of the cylindrical wall portion 48 and the bottom of the first recess 50 are housed.
The outer peripheral edge of the second rubber film 64 is sandwiched between
The upper member 42 and the middle member 44
Wave welding is being performed and the cylinder of the lower member 46
The wall 54 is fitted into the second recess 52 of the middle member 44
In the housed state, the middle member 44 and the lower member 4
6 is being ultrasonically welded.

As is well known, the ultrasonic welding method is to transmit ultrasonic vibration by bringing a horn (ultrasonic transmission body) into contact with resin materials stacked on each other. The superposed resin materials are welded to each other, and any of direct welding and transmission welding can be adopted according to the material of the upper member 42, the middle member 44, and the lower member 46, their thickness, and the like. It is.

That is, the members 42, 44, and 46 constituting the partition member 40 are formed of a thermoplastic resin material, and are integrated by ultrasonic welding. The integration of the members 42, 44, 46 can be performed very quickly and easily.

Moreover, the integration of the partition member 40 is
Since the positioning can be performed before the mounting to the mount body, the relative positioning of the members 42, 44, 46 can also be performed accurately and easily.
Circumferential positioning of the members 42, 44, 46 for aligning the openings of the second orifice passage 72, and the upper member 42 for holding the outer peripheral edge of the second rubber film 58 in the middle. This makes it possible to easily perform axial alignment with the member 44 with sufficient accuracy.

Therefore, according to the engine mount having the structure according to the present embodiment, the assembly work of the members 42, 44, and 46 forming the partition member 40 can be sufficiently performed while ensuring sufficient assembly accuracy. Simplification and improved mount fabrication cycles can be achieved very effectively.

Next, FIG. 4 shows an engine mount as another embodiment of the present invention. In the present embodiment, members and portions having the same structure as in the first embodiment are denoted by the same reference numerals as those in the first embodiment, respectively, on the drawings. Detailed description thereof will be omitted.

In the engine mount of this embodiment,
A seal sleeve 76 is provided along the inner peripheral surface of the second mounting member 12. The seal sleeve 76 has a stepped thin cylindrical shape slightly smaller than the second mounting member 12. In addition, a thin seal rubber layer 78 is provided integrally over substantially the entire inner peripheral surface of the seal sleeve 76, and the opening on the small diameter portion 80 side is formed by the first rubber film 58. Fluid tightly closed.

In the seal sleeve 76, the partition member 40 is accommodated in the small-diameter portion 80, and the connecting fitting 20 is formed in the large-diameter portion 82.
It is fitted to the outside. Thus, the inside of the seal sleeve 76 is sealed, and the pressure receiving chamber 56, the first equilibrium chamber 60, and the second equilibrium chamber 66 are formed therein.

The second mounting member 12 is assembled by assembling the seal sleeve 76 to the connecting member 20 and sealing the fluid inside, and then externally inserted into the seal sleeve 76 and fixed by caulking. I have.

That is, the seal sleeve 76 as described above.
Is employed, the spiral groove 77 formed in the outer peripheral surface of the partition member 40 is covered with the seal sleeve 76, and the second orifice passage 72 extending in the circumferential direction for at least one circumference. Can be easily formed, so that the partition member 40 is divided into the upper member 42 and the middle member 4.
6 can be constituted by two members.

In the engine mount of the present embodiment, the upper member 42 and the middle member 46 are both made of a thermoplastic resin material, as shown in FIGS. 5 and 6. So, before they mount,
It is integrated by ultrasonic welding. Thus, as in the first embodiment, simplification of the mount manufacturing operation and improvement of the mount manufacturing cycle can be achieved while sufficiently securing the assembling accuracy of the members 42 and 44 constituting the partition member 40.
It can be achieved very effectively.

FIG. 7 shows an engine mount as still another embodiment of the present invention. In the present embodiment, members and portions having the same structure as the second embodiment are denoted by the same reference numerals as those in the second embodiment on the drawings. Detailed description thereof will be omitted.

In the engine mount of this embodiment,
The partition member 40 disposed in the small-diameter portion 80 of the seal sleeve 76 is formed of an outer member 8 having a substantially thick cylindrical shape as a whole.
4 and an inner member 88 having a substantially disc shape fitted and assembled in the inner hole 86 of the outer member 84.

The spiral groove 90 extending in the circumferential direction provided on the outer peripheral surface of the outer member 84 is covered with the seal sleeve 76, so that the pressure receiving chamber 56 and the first equilibrium chamber 6 are covered.
A first orifice passage communicating with the first orifice is formed.

The inner peripheral surface of the outer member 84 is provided with a support portion 92 in the form of an inner flange projecting radially inward at a central portion in the axial direction. A disk-shaped rubber plate 94 is accommodated in the inner hole 86 of the outer member 84, and the inner member 88 is fitted from above in the axial direction. The outer peripheral edge of the rubber plate 94 is sandwiched and held between the outer flange 84 and the inner flange 92 of the outer member 84. A concave portion 96 is provided at the center of the lower surface of the inner member 88 so that a predetermined gap 98 is formed between the inner member 88 and the upper surface of the rubber plate 94.

Further, the inner member 88 is provided with a peripheral groove 99 which is open on the outer peripheral surface. The peripheral groove 99 is covered by the outer member 84 so that the pressure receiving chamber 56 is
A second orifice passage 72 communicating with the second orifice 8 is formed. That is, in the engine mount of this embodiment, the flow of the fluid through the second orifice passage 72 is allowed based on the elastic deformation of the rubber plate 94. In other words, the rubber Due to the spring rigidity of the plate 94, the pressure receiving chamber 56 passes through the second orifice passage 72.
Thus, the flow rate of the fluid that is allowed to flow between the first balance chamber 60 and the first balance chamber 60 is limited.

Accordingly, at the time of vibration input of a middle to high frequency range having a relatively small amplitude, the second orifice passage 7
The effective low dynamic spring effect can be exerted on the basis of the resonance action of the fluid flowing through the second orifice 2, while the flow of the fluid through the first orifice passage 70 is reduced when a vibration is input in a low frequency range having a relatively large amplitude. By being generated, a high damping effect can be exhibited based on the resonance action of the fluid flowing through the first orifice passage 70.

In the engine mount having the above-described structure, the outer member 8 constituting the partition member 40 is also provided.
The inner member 4 and the inner member 88 are both made of a thermoplastic resin material, and as shown in FIGS. 8 and 9, they are integrated by ultrasonic welding before mounting. I have. As a result, as in the first and second embodiments, simplification of the mount manufacturing operation and improvement of the mount manufacturing cycle can be achieved while sufficiently assembling the members 84 and 88 constituting the partition member 40 with sufficient assembling accuracy. Can be effectively achieved.

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

For example, in each of the above-described embodiments, a plurality of (two) orifice passages 70 and 72, each of which is differently tuned from each other, are formed in the partition member. Alternatively, the present invention can be applied to a partition member having three or more orifice passages or a partition member having no orifice passage.

Further, even when the orifice passage is provided,
The specific structure should be appropriately determined according to the anti-vibration characteristics required for the mount and the like, and is not limited to the above-described embodiment.

Further, in the above-described embodiment, a specific example in which the present invention is applied to an engine mount for an automobile has been described. , Which can be advantageously applied.

In addition, although not enumerated one by one, the present invention
Based on the knowledge of those skilled in the art, various changes, modifications, improvements and the like can be implemented in an embodiment,
It goes without saying that all such embodiments are included within the scope of the present invention, without departing from the spirit of the present invention.

[Brief description of the drawings]

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

FIG. 2 is an exploded view of a partition member constituting the engine mount shown in FIG.

FIG. 3 is an assembly view of the partition member shown in FIG. 2;

FIG. 4 is an explanatory longitudinal sectional view showing an automobile engine mount as another embodiment of the present invention.

FIG. 5 is an exploded view of a partition member constituting the engine mount shown in FIG.

6 is an assembly view of the partition member shown in FIG.

FIG. 7 is an explanatory longitudinal sectional view showing an automobile engine mount as still another embodiment of the present invention.

FIG. 8 is an exploded view of a partition member constituting the engine mount shown in FIG.

FIG. 9 is an assembly view of the partition member shown in FIG.

[Brief description of reference numerals]

 DESCRIPTION OF SYMBOLS 10 First mounting bracket 12 Second mounting bracket 14 Main body rubber elastic body 40 Partition member 42 Upper member 44 Middle member 46 Lower member 56 Pressure receiving chamber 58 First rubber film 60 First equilibrium chamber 64 Second rubber film 66 second equilibrium chamber 70 first orifice passage 72 second orifice passage 84 outer member 88 inner member 94 rubber plate

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-57-9340 (JP, A) JP-A-3-79833 (JP, A) JP-A-3-84243 (JP, A) 229034 (JP, A) JP-A-5-99266 (JP, A) Japanese Utility Model Application Laid-Open No. 62-141941 (JP, U) Japanese Utility Model Application Laid-Open No. 5-22892 (JP, U)

Claims (1)

(57) [Claims] 1. A first mounting bracket and a second mounting bracket which are arranged at a predetermined distance are connected by a rubber elastic body interposed therebetween, and a plurality of members are overlapped. Then, the partition member integrally formed is supported by the second mounting bracket, and a part of the wall portion is provided on the first mounting bracket side with respect to the partition member. A pressure receiving chamber formed of the rubber elastic body is formed, and a part of a wall portion is formed of a flexible film on a side opposite to the pressure receiving chamber with the partition member interposed therebetween. and it allowed formed an equilibrium chamber which is communicated through the orifice passage relative, pressure-receiving chamber and
An incompressible fluid is sealed in the equilibrium chamber, and the partition
At least one surface of the material is not pressurized in the pressure receiving chamber.
A rubber film or rubber plate that is affected by a contractile fluid
In the fluid-filled mounting device having a structure as described above, a plurality of members forming the partition member are formed of thermoplastic resin, respectively, and
In one adjacent member in the overlapping direction.
While the other member fits into the recess.
And a convex portion to be inserted and accommodated, and
So that the other member can contact the one member.
The rubber film or rubber is formed in the recess of the one member.
The rubber film or the outer peripheral edge of the rubber plate is
The bottom of the recess of one member and the tip of the protrusion of the other member;
A fluid-filled mounting device, wherein the members are integrally fixed to each other by ultrasonic welding in a state of being sandwiched between the mounting members .