JPH086777B2 - Manufacturing method of fluid-filled mount 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 method for manufacturing a fluid-filled mount device in which the assembly work of the fluid-filled mount device can be facilitated and simplified, and at the same time, the sealing performance of the enclosed fluid can be improved. .

[0002]

2. Description of the Related Art Conventionally, as disclosed in JP-A-57-9340, as a type of mount device that is interposed between members constituting a vibration transmission system and connects the two members in a vibration-proof manner. , A rubber elastic body having a substantially frusto-conical shape, a first support metal fitting attached to one member to be vibration-isolated at its small-diameter side end, and a cylindrical connection to the outer peripheral surface of the large-diameter side end. A fluid chamber in which a predetermined incompressible fluid is sealed between the flexible film and the rubber elastic body by fixing the metal fittings to each other and covering the opening of the connection metal fitting with a flexible film. On the other hand, there is known a fluid-filled mount device having a structure in which the second support metal fitting attached to the other member to be vibration-proof connected to the opening side end of the connecting metal fitting is caulked and fixed. Has been. In such a mounting device, the fluid chamber is partitioned into a pressure receiving chamber and an equilibrium chamber, which are communicated with each other through a fluid flow path, by a partitioning member disposed inside the fluid chamber, and these fluid chambers are separated when a vibration is input. A predetermined vibration damping effect can be exerted based on the resonance action of the fluid that flows between the two chambers.

By the way, in such a fluid-filled mount device, in order to secure the liquid-tightness of the fluid chamber, a high degree of sealing property is required for the attachment portion of the flexible film to the connecting fitting. The Rukoto. Therefore, conventionally, as generally disclosed in the above publication, the outer peripheral edge portion of the flexible film is clamped and held in the axial direction at the crimped portion of the second support fitting with respect to the connecting fitting. A structure is adopted in which the opening of the connecting fitting is covered in a fluid-tight manner with such a flexible film.

Further, in the mount device having such a structure, a vulcanized molded product obtained by integrally connecting the first support fitting and the connecting fitting with a rubber elastic body is usually enclosed in the fluid chamber. It is dipped in the fluid to be formed, and in the fluid, the partition member, the rubber elastic film, and the second supporting metal fitting are assembled to the connecting metal fitting, and the metal fitting is further formed by caulking, whereby, The fluid is filled and sealed in the fluid chamber.

However, in such a fluid-filled mount device having a conventional structure, not only the operation of assembling the partition member and the flexible film with respect to the connecting metal fitting but also the operation of assembling the second support metal fitting is performed by the fluid. Because it needs to be done inside,
The mount assembling work was troublesome, and in particular, a large-sized one having a bracket was often used as the second supporting metal fitting, and there was a problem that the assembling work in a fluid was difficult. Of.

Moreover, since the first and second support fittings are usually directional ones due to their mounting positions and mounting structures for the members to be vibration-isolated, they are added. When assembling the second support fitting to the sulfur molded product, the directionality of the fitting must be taken into consideration, and in combination with the work in a fluid, the assembly workability is extremely poor. It was extremely difficult to automate the assembly work because the alignment had to be done manually.

Further, if the assembly of the second support fitting to the connecting fitting is carried out in a fluid, the fluid will enter the inside of the second support fitting, so the assembly was taken out of the fluid. After that, there was also a problem that the fluid that entered the second support metal had to be discharged.

Furthermore, in addition to the above, the outer peripheral edge portion of the flexible membrane is axially clamped at the portion of the second support metal fitting that is caulked with respect to the connecting metal fitting, and the sealing property is based on the clamping force by the caulking. In the conventional fluid-filled mount device, the vibration load from the outside affects the direction of the clamping force by caulking between the second support fitting and the connecting fitting. Therefore, there is also a problem that the sealing property of the enclosed fluid is deteriorated and liquid leakage may be caused due to the fact that the crimping is gradually weakened by the vibration input and the clamping force is reduced. is there.

[0009]

Here, the present invention has been made in view of the above circumstances, and the problem to be solved is to assemble the second support fitting to the connecting fitting outside the fluid. Provided is a method of manufacturing a fluid-filled mount device, which can be carried out and effectively facilitates assembly work in a fluid, and can also advantageously secure the sealability of a fluid chamber with excellent durability. To do.

[0010]

In order to solve such a problem, a feature of the present invention resides in that (a) a rubber elastic body having a substantially frustoconical outer shape is provided with a first support at its small-diameter side end portion. A step of preparing an integrally vulcanized molded product in which the metal fittings have cylindrical connecting fittings fixed to the outer peripheral surface of the end on the large diameter side, and (b) a substantially bottomed cylindrical shape, Has a through hole that is fluid-tightly closed by the bottom, and the opening is
A step of preparing a mounting metal fitting having a fitting portion having a diameter larger than that of the connecting metal fitting; and (c) by being housed in the mounting metal fitting, the inside thereof is partitioned into axially opposite side parts and both side parts thereof are A step of preparing a partition member that forms a fluid flow path that communicates with each other; (d) after the partition member is housed and arranged inside the fitting, the flexible membrane in the fitting is pressed from the outside. The fitting part of the fitting is externally inserted into the connecting fitting of the integrally vulcanized molded product in a predetermined non-compressible fluid under the condition that the fitting is integrally vulcanized and molded. A step of filling the incompressible fluid with a product and discharging the excess incompressible fluid to the outside through a space between the fitting portion and the connecting fitting in accordance with the extrapolation operation; If the fitting part of the mounting bracket is Then, the fitting portion is subjected to a diameter reduction process, and the fitting portion is fitted and fixed to the connecting fitting by sandwiching a seal rubber layer, so that a predetermined amount of incompressible fluid is applied to both sides of the partition member. A step of obtaining an assembly in which a sealed pressure receiving chamber and an equilibrium chamber are formed, and (f) after the assembly is taken out from the fluid, a second support provided with a cylindrical caulking portion outside the fluid. The fitting is externally inserted into the fitting, and the caulking portion is axially crimped and fixed to the fitting portion of the fitting, thereby fixing the connecting fitting to the fitting in the axial direction. Process and
A method of manufacturing a fluid-filled mount device has.

[0011]

According to the method of the present invention as described above, the fluid chamber (pressure receiving chamber and equilibrium chamber) can be formed and sealed by assembling the mounting metal fitting to the integrally vulcanized molded product. Therefore, it is not necessary to assemble the second support metal fitting, which is a relatively large metal fitting, in the fluid, and furthermore, the fluid can be completely prevented from entering the inside of the second support metal fitting, and Since liquid draining and the like are unnecessary, simplification of mount assembly operation and improvement of workability can be achieved extremely effectively.

Further, according to such a method of the present invention, the seal at the assembly portion of the connecting metal fitting and the mounting metal fitting of the integrally vulcanized molded product is in the direction perpendicular to the axis of the connecting metal fitting and the mounting metal fitting (fitting portion). This is done by pinching the seal rubber layer between the opposing surfaces, whereby the pinching force on the seal rubber layer is substantially orthogonal to the acting direction of the vibration load exerted between the connecting metal fitting and the mounting metal fitting. Since it is allowed to act in the direction, the deterioration of the sealing property due to the vibration load can be prevented very effectively, and the mounting device capable of exhibiting excellent durability can be advantageously realized.

[0013]

The embodiments of the present invention will now be described in detail with reference to the drawings in order to clarify the present invention more specifically.

FIG. 1 shows an automotive engine mount 10 to which the inventive technique may be advantageously applied. The engine mount 10 includes a rubber elastic body 1 in which a first support fitting 12 and a second support fitting 14 arranged at a predetermined distance from each other in the vibration input direction are interposed between them.
6 has a structure in which it is elastically connected, and inside it, parts of the walls that are connected to each other through an orifice passage 18 are made up of a rubber elastic body 16 so that internal pressure is applied when vibration is input. Pressure receiving chamber 2 that causes fluctuations
0, and the equilibrium chamber 22 in which a part of the wall portion is constituted by the diaphragm 48 and the volume change is easily allowed.
In the engine mount 10, the first support fitting 12 is attached to the power unit side, and the second support fitting 14 is attached to the vehicle body side.
It is interposed between the engine unit and the vehicle body, and in such a mounted state, the first support fitting 12 and the second support fitting 14 are substantially opposed to each other (vertical direction in the figure). Against the vibration input to the orifice passage 18
Through this, the vibration damping effect is exerted by the fluid that is made to flow between the pressure receiving chamber 20 and the equilibrium chamber 22.

Details of the manufacturing method and structure of the engine mount 10 will be described below in accordance with the manufacturing process. That is, when manufacturing the engine mount 10, first, in a molding die in which the first support fitting 12 and the cylindrical connecting fitting 26 are arranged,
By molding the rubber elastic body 16 and applying a vulcanization operation, an integrally vulcanized molded article 28 as shown in FIG. 2 is obtained.

In this, the rubber elastic body 16 is
It has a generally frustoconical shape as a whole, and has a recess 24 that opens at the large-diameter side end face. The first support fitting 12 is fixed to the small-diameter side end face, while the large diameter The connecting fitting 26 is fixed to the outer peripheral surface of the side end portion. Also, the first support fitting 1
2 has a solid rod shape as a whole, one end of which in the axial direction is a tapered portion 32, and a stopper portion 30 which projects outward in the radial direction is integrally formed in the central portion in the axial direction. And is fixed to the rubber elastic body 16 in a state where the tapered portion 32 axially protrudes from the small diameter side end portion of the rubber elastic body 16, while having a predetermined thickness on the stopper portion 30. The cushioning rubber layer 36 is provided. Furthermore, a screw hole 34 and a positioning hole 35 are provided on the other end side in the axial direction of the first support fitting 12, and a positioning protrusion provided on the power unit side is fitted into the positioning hole 35. The first support fitting 12 is attached to the power unit side by a mounting bolt (not shown) screwed into the screw hole 34 in the aligned state.

Further, in a step different from that of the integrally vulcanized molded product 28, as shown in FIG. 3, a mounting metal member having a diaphragm 48 as a flexible film at its bottom portion and having a substantially bottomed cylindrical shape as a whole. 38 is formed. Such mounting bracket 38
The cylindrical wall portion of is a stepped cylindrical shape having a stepped portion 40 at an axially intermediate portion, and has a larger diameter at its opening than the connecting fitting 26 constituting the integrally vulcanized molded product 28. In addition, an outwardly tapered fitting portion 44 is formed that expands in diameter outward in the axial direction. A seal rubber layer 50 is provided on the inner peripheral surface of the fitting portion 44 over substantially the entire surface thereof. A through hole 46 is formed in the bottom wall portion of the mounting member 38, and the through hole 46 is formed.
A diaphragm 48, which is a flexible film made of a thin disk-shaped rubber film, is vulcanized and adhered to the peripheral edge portion of the opening at the outer peripheral edge portion thereof. 46 is closed fluid-tightly.

Further, as shown in FIG. 4, the integral vulcanization molded product 28 and the mounting member 38 separately form a partition member 52 having a generally shallow bottomed cylindrical shape as a whole. The partition member 52 includes a first partition fitting 54 and a second partition fitting 56, each of which has a substantially shallow bottomed cylindrical shape with an outwardly facing flange portion at the outer peripheral edge thereof.
The structure is such that they are axially overlapped with each other.
Then, in the cylindrical wall portion of the partition member 52, between the first and second partition fittings 54, 56, there are circumferentially opened openings on both axial sides of the partition member 52 through the communication holes 51, 53. An orifice passage 18 is formed as a fluid passage extending a predetermined length. In addition, the bottom wall portion of the partition member 52 has first and second partition fittings 54,
Between the spaces 56, cavities 66 are formed which are opened on both sides in the axial direction of the partition member through the plurality of communication holes 55, and the cavities 66 are partitioned on both sides in the axial direction so that the partition rubber film 60 is formed. Are arranged to be deformable by a predetermined amount.

Then, the integrally vulcanized molded product 28, the mounting member 38 and the partition member 52 formed as described above are immersed in a predetermined incompressible fluid 61 to be sealed in the pressure receiving chamber 20 and the equilibrium chamber 22. In fact, as shown in Figure 5,
Assemble them in such a fluid 61. As the non-compressible fluid, generally, water, alkylene glycol, polyalkylene glycol, silicone oil and the like are preferably used.

Specifically, first, the mounting member 38 is connected to the fluid 6
The partition member 52 is inserted into the mounting member 38 in the outside of the fluid before the immersion in 1 or in the fluid after the immersion, and the outer peripheral edge portion thereof is placed on the stepped portion 40 of the mounting member 38 so as to overlap with each other. Excuse me. Next, as shown in FIG. 5, in the fluid 61, the fitting portion 44 of the fitting 38 is attached.
On the other hand, the connecting fitting 26 of the integrally vulcanized product 28 is inserted and assembled. By this assembly, the opening of the mounting bracket 38 is covered with the integrally vulcanized molded product 28, and the mounting bracket 3
The pressure receiving chamber 20 and the equilibrium chamber 22 are formed between the unit 8 and the integrally vulcanized molded product 28 on both sides of the partition member 52, and inside the pressure receiving chamber 20 and the equilibrium chamber 22,
The predetermined incompressible fluid 61 will be filled.

As shown in the drawing, the mounting operation of the mounting member 38 and the integrally vulcanized molded article 28 is performed by pressing the diaphragm 48 fixed to the mounting member 38 from the outside with a jig. 62 is brought into contact, and the diaphragm 48 is bent inward or bulged inward. That is, this prevents the diaphragm 48 from bulging outwardly when the connecting metal fitting 26 of the integrally vulcanized molded product 28 is inserted into the fitting portion 44 of the mounting metal fitting 38, so that the inside of the mounting metal fitting 38 is prevented. The excess fluid is forced to be discharged to the outside through the space between the fitting portion 44 and the connecting fitting 26, so that the amount of fluid filled in the pressure receiving chamber 20 and the equilibrium chamber 22 is reduced. It can be defined advantageously.

Further, the vulcanization molded product 2 integrated with the mounting member 38
8 is assembled, and then the fitting portion 44 of the mounting fitting 38 is subjected to a diameter reduction process such as an eight-sided drawing so that the fitting portion 44 is attached to the connecting fitting 26 of the integrally vulcanized molded product 28. Attach them to each other and assemble them together. That is, as shown in FIG. 6, when the diameter of the fitting portion 44 is reduced,
The seal rubber layer 50 is squeezed in the radial direction between the fitting portion 44 and the connecting fitting 26, so that the fitting portion 44 and the connecting fitting 26
Since the sealability between the pressure receiving chamber 20 and the equilibrium chamber 22 is liquid-tightly closed to the outside, the pressure receiving chamber 20 and the equilibrium chamber 22 can be secured.
A predetermined amount of the incompressible fluid 61 will be sealed in.
In addition, the vulcanization molded product 2 integrated with the mounting bracket 38 is thereby provided.
8 is integrally assembled to form an assembly 64.

Then, the assembly 6 thus obtained
4 is taken out from the fluid, and the assembly 64 is placed outside the fluid.
On the other hand, the second support fitting 14 formed separately is caulked and fixed, so that it is fixedly mounted. As shown in FIG. 7, the second support fitting 14 is formed to have a bottomed cylindrical shape that is thicker than the mounting fitting 38 and is slightly larger than the mounting fitting 38. It has a stepped cylindrical shape composed of a small-diameter portion 70 and a large-diameter portion 72, the diameter of which is larger on the opening side with a stepped portion 68 provided in the central portion in the direction, and the outer periphery of the small-diameter portion 70 A bracket 73 is fixedly provided on the surface. Then, in such a second support fitting 14, as shown in FIG. 1, after the large diameter portion 72 is externally inserted into the fitting portion 44 of the mounting fitting 38, the large diameter portion 72 By caulking the opening peripheral portion of the portion 72 inward in the radial direction, the large diameter portion 72
The fitting portion 44 of the mounting member 38 is clamped in the axial direction together with the connecting member 26 so as to be caulked and fixed to the connecting member 26. That is, the caulking fixing of the second support metal fitting 14 to the mounting metal fitting 38 fixes the connecting metal fitting 26 to the fitting portion 44 of the mounting metal fitting 38 and prevents the axial fitting thereof from coming off. As is apparent from this, in the present embodiment, the large diameter portion 72 of the second support fitting 14 constitutes a caulking portion for fixing the connecting fitting 26 to the mounting fitting 38. .

When the second support fitting 14 is attached to the assembly 64, the bracket 73 provided on the second support fitting 14 has the first support fitting 12 constituting the assembly 64. It will be positioned and caulked and fixed in consideration of the relative directionality with respect to.

Further, when the second support fitting 14 is assembled to the assembly 64, a separately formed stopper fitting 74 is caulked and fixed at the large diameter portion 72 of the second support fitting 14 at the same time. The second support fitting 1
4 is fixedly supported. The stopper metal fitting 74 has a substantially cylindrical shape, and has an outward flange-shaped mounting portion 76 on one end side in the axial direction and an inward flange-shaped contact portion 78 on the other end side in the axial direction. . Then, the mounting portion 76 is clamped at the caulked portion of the large diameter portion 72 of the second support fitting 14,
The abutting portion 78 protruding toward the first support fitting 12 side is positioned axially outward with respect to the stopper portion 30 of the first support fitting 12. Note that the contact portion 78 of the stopper metal fitting 74 is subjected to the weight of the power unit between the first support metal fitting 12 and the second support metal fitting 14 in the mount mounted state, and the rubber elastic body 16 is deformed. Thus, the stopper portion 30 is axially outwardly opposed to the stopper portion 30 with a predetermined distance therebetween, and the stopper portion 30 is brought into contact with the corresponding contact portion 78 so that the first support metal fitting is provided. 12 and second support fitting 14
Therefore, the relative displacement amount in the separating direction, and thus the deformation amount of the rubber elastic body 16 can be regulated.

In the engine mount 10 manufactured as described above, the first support metal fitting 1 under the mounted condition.
When vibration is input between the second support fitting 14 and the second support fitting 14,
On the basis of the relative internal pressure difference generated between the pressure receiving chamber 20 and the equilibrium chamber 22, the flow of the fluid through the orifice passage 18 or the cavity 66 is generated, and thus the flow action of the fluid is generated. Or based on resonance action,
A predetermined anti-vibration effect can be exhibited.

Then, according to the above-mentioned method, the fitting portion 44 of the mounting member 38 is fitted to the connecting member 26 when the fluid is filled in the fluid chamber (the pressure receiving chamber 20 and the equilibrium chamber 22). As a result, the liquid-tightness of the fluid chamber is ensured and the fluid is sealed, so that the operation of assembling the second support fitting 14 can be performed outside the fluid. It is not necessary to immerse the second support metal fitting 14 which is a relatively large metal fitting in the fluid to be assembled, and furthermore, the fluid can be completely prevented from entering the inside of the second support metal fitting 14, and after the assembly, Since the liquid draining operation is also unnecessary, simplification of the mount manufacturing process and improvement of workability can be achieved extremely advantageously.

Further, according to such a mount assembling method, when the second supporting metal fitting 14 is assembled, the orientation with respect to the first supporting metal fitting 12 can be performed outside the fluid. Since the assembling work of the support metal fittings 14 becomes easy and it is not necessary to consider the directionality of the assembling member in the fluid, the assembling work in the fluid can be simplified, whereby the fluid It is easy to automate the assembly work inside.

Furthermore, in this embodiment, since the fitting portion 44 of the mounting metal fitting 38 into which the connecting metal fitting 26 of the integrally vulcanized molded product 28 is inserted is formed in a tapered cylindrical shape, The operation of inserting the connecting fitting 26 into the fitting portion 44 can be performed more easily. However,
The tapering of the fitting portion 44 is not an essential requirement of the present invention, and the fitting portion 44 is formed in a non-tapered cylindrical shape having a predetermined size larger than that of the connecting fitting 26. You may do it.

Further, according to the above-described method, the diaphragm 48 is pressed inward by the pressing jig 62 during the assembling operation of the integrally vulcanized molded product 28 and the mounting member 38, so that the product ( The volumes of the pressure receiving chamber 20 and the equilibrium chamber 22 in the engine mount 10) can be advantageously defined, and the bulging deformation allowance of the diaphragm 48 in the product, that is, the volume increase variable amount of the equilibrium chamber 22 can be advantageously ensured. This also has the advantage that the internal pressure rise in the fluid chamber due to the power unit load exerted under the mounted state of the mount can be effectively suppressed, and the desired mount vibration isolation characteristics can be obtained advantageously and stably. -ing

Further, the vibration inputted between the first support fitting 12 and the second support fitting 14 is also applied between the connecting fitting 26 and the mounting fitting 38, so that the connecting fitting 26 and the fitting are attached. Although a displacement stress in the mount axial direction is generated between the metal fitting 38 and the metal fitting 38, in the engine mount 10 manufactured by the above-described method, the connecting metal fittings 26
Since the seal between the mounting member 38 (fitting portion 44) and the mounting metal fitting 38 is formed by fitting the members 26, 38 in the direction perpendicular to the axis, the vibration load is generated between the members 26, 38. The input is made in a direction orthogonal to the sealing direction at. Therefore, the vibration load does not directly cause the deformation of the coupling member 26 and the mounting member 38 which deteriorates the sealing property between them, and the sealing property against the enclosed fluid due to the vibration load. It is possible to very effectively avoid the decrease of the above, and thus the initial sealability can be stably exhibited with excellent durability.

Furthermore, such an engine mount 1
In 0, since the looseness of the caulked portion in the large diameter portion 72 of the second support fitting 14 does not directly lead to the deterioration of the sealing performance against the enclosed fluid, the stopper is stopped by the caulked portion as in the present embodiment. Even when the metal fitting 74 is supported, the sealing performance is not deteriorated due to the shocking displacement regulating load input through the stopper metal fitting 74. However, such a stopper metal fitting 7
Providing 4 is not an essential requirement in the present invention.

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

For example, in the above embodiment, the seal rubber layer 5 for sealing between the fitting surfaces of the connecting fitting 26 and the mounting fitting 38.
Although 0 was formed on the inner peripheral surface of the mounting member 38, in addition to or instead of this, a seal rubber layer may be formed on the outer peripheral surface of the connecting member 26, or a separate rubber layer may be interposed. May be.

Further, in the above-mentioned embodiment, a specific example in which the method of the present invention is applied to a mount having a relative directivity between the first and second support fittings 12 and 14 is shown. It goes without saying that the present invention can be advantageously applied to a mount having no relative orientation between the two support fittings.

Furthermore, the first and second support fittings 12,
The specific shape of 14 and the specific structure of the fluid chamber including the orifice passage are not limited to the above-described embodiments, and the mounting structure of the mounting device, the vibration damping characteristics required for the mounting device, and the like. Therefore, design changes should be made as appropriate.

In addition, in the above embodiment, the method of the present invention is
Although a specific example of application to an automobile engine mount has been shown, the method of the present invention can be effectively applied to other various fluid-filled mount devices.

In addition, although not enumerated one by one, the present invention
Based on the knowledge of those skilled in the art, it can be implemented in various modified, modified, and improved modes, and
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 drawings]

FIG. 1 is a vertical cross-sectional view showing a specific example of an automobile engine mount manufactured according to the method of the present invention.

FIG. 2 is a vertical cross-sectional view showing an integrally vulcanized molded product formed in a manufacturing process of the engine mount shown in FIG.

FIG. 3 is a vertical cross-sectional view showing a mounting member formed in a manufacturing process of the engine mount shown in FIG.

FIG. 4 is a vertical sectional view for explaining an assembling operation in one manufacturing process of the engine mount shown in FIG.

5 is a vertical sectional view showing an assembly obtained in a manufacturing process of the engine mount shown in FIG. 1. FIG.

6 is a vertical cross-sectional view showing a stopper metal fitting formed in a process of manufacturing the engine mount shown in FIG.

FIG. 7 is a vertical cross-sectional view showing a second support fitting used for manufacturing the engine mount shown in FIG.

[Explanation of symbols]

10: Engine mount 12: First support fitting 14: Second support fitting 16: Rubber elastic body 18: Orifice passage 20: Pressure receiving chamber 22: Equilibrium chamber 26: Connecting fitting 28: Integrated vulcanization molded product 38: Mounting fitting 44: Fitting part 46: Through hole 48: Diaphragm 50: Seal rubber layer 52: Partition member 61: Incompressible fluid 62: Holding jig 64: Assembly 70: Small diameter part 72: Large diameter part

Claims (1)

[Claims] 1. A rubber elastic body having a substantially frustoconical outer shape, a first supporting metal fitting is fixed to an end portion of the small diameter side thereof, and a cylindrical connecting metal fitting is fixed to an outer peripheral surface of the end portion of the large diameter side thereof. And a step of preparing an integrally vulcanized molded article having a substantially bottomed cylindrical shape, and having a through hole that is fluid-tightly closed by a flexible film in the bottom portion, and the opening is larger than the connecting fitting. A step of preparing a mounting fitting having a large-diameter fitting portion, and by being housed in the mounting fitting, the inside thereof is partitioned into axially opposite side portions, and a fluid flow path that connects these both side portions to each other is formed. A step of preparing a partition member, and after placing the partition member inside the mounting metal fitting, the flexible membrane in the mounting metal fitting is pressed from the outside to enter inward, In the non-compressible fluid, Is externally inserted into the connecting metal fitting of the integrally vulcanized molded product, and the non-compressible fluid is filled between the mounting metal fitting and the integrally vulcanized molded product, and the fitting portion is connected with the external fitting operation. Discharging a surplus of incompressible fluid to the outside through the metal fitting, and reducing the diameter of the fitting portion of the mounting fitting in the fluid so that the fitting portion is attached to the connecting fitting. By sandwiching and fixing the seal rubber layer, on both sides sandwiching the partition member,
A step of obtaining an assembly in which a pressure receiving chamber and an equilibrium chamber each containing a predetermined amount of incompressible fluid are formed, and after the assembly is taken out of the fluid, a cylindrical caulking portion is placed outside the fluid. The second supporting metal fitting provided is externally inserted to the mounting metal fitting, and the caulking portion is axially caulked and fixed to the fitting portion of the mounting metal fitting so that the connecting metal fitting is attached to the fitting portion. And a step of axially fixing the fluid-filled mount device.