JP3040246U - Viscous fluid filled damper - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: It is possible to seal a viscous fluid in a short time without performing vulcanization adhesion, and therefore productivity is improved and reliability for sealing is high. A viscous liquid-filled damper with improved anti-vibration properties by reducing the amount and increasing the filling amount of viscous fluid. SOLUTION: A container body made of a rubber-like elastic body and a lid body that closes an opening are included, and a viscous fluid is sealed inside the container, and viscous flow of the viscous fluid causes vibration between a support body and a supported body. A viscous liquid-sealed damper for insulation, in which a caulking tool seals a sealed portion which is a combination of the mouth edge of the container body and the edge of the lid body for sealing the viscous fluid by the container body and the lid body. did.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention comprises a container body made of a rubber-like elastic body and a lid body that closes an opening. A viscous fluid is enclosed inside a container, and the viscous flow of the viscous fluid causes the viscous fluid to flow between a support and a supported body. The present invention relates to a viscous liquid-filled damper that performs vibration isolation.

[0002]

[Prior art]

 It is known that a CD player is vibration-isolated via a viscous fluid-sealed damper in order to prevent sound skipping due to vehicle body vibration in a vehicle-mounted CD player or the like. A viscous fluid is enclosed and the viscous flow absorbs vibrations. Conventionally, a container body made of a rubber-like elastic body is divided into a container body and a lid body, and after filling the body body with a viscous fluid, the body and the lid body are vulcanized and bonded together to make a sealed state.

[0003] A general conventional vulcanization bonding method is to use a vulcanization adhesive made of the same material as a rubber-like elastic material, compounding a compounding agent such as carbon and a vulcanizing agent, and then adding toluene and acetone. It is manufactured as a solvent-dissolved adhesive by dissolving it in a solvent such as, and after the adhesive is applied to the container body and lid of the adherend, a solvent drying process is required, resulting in a product in process of 12 hours or more. occured.

[0004]

[Problems to be solved by the device]

 Since the conventional container body and lid are integrated by vulcanization bonding, it is necessary to use an adhesive for this vulcanization bonding, to apply the adhesive, and for the bonding time. It was a factor that increased costs. The adhesive has a low pot life of 7 days, and although the application method includes brush painting, painting, dispenser, etc., the adhesiveness is low because it is difficult to apply it uniformly because of its high viscosity. In addition, since the solvent is used, the environment is bad and the health of workers is impaired. Since the adhesion conditions were vulcanization adhesion, heat and several minutes were required, and productivity did not increase.

In addition, the integration by vulcanization adhesion is performed by setting the container body and the lid body, which are filled with the viscous fluid, in a preheated mold and adhering them, so that the mold is filled when the container body is set in the mold. The viscous fluid is heated and expands. Therefore, it was necessary to reduce the filling amount of the viscous fluid with respect to the internal volume of the container main body in consideration of the expansion of the viscous fluid. Therefore, the amount of air in the closed container increases. In addition, the absolute amount of viscous fluid is reduced, which adversely affects the vibration damping characteristics.

[0006]

[Means for Solving the Problems]

 The present invention is intended to solve the above-mentioned problems, and its gist includes a container body made of a rubber-like elastic body and a lid that closes an opening. A viscous liquid-sealed damper that performs vibration isolation between a support and a supported body by viscous flow of a fluid. The viscous fluid is sealed by the container body and lid. This is because the encapsulation part that fits the edge of the body was encapsulated using caulking metal fittings.

The material of the rubber-like elastic body used is not limited, and butyl rubber, chloroprene rubber, natural rubber, thermoplastic elastomer, etc. can be used. The material for the caulking tool is not limited, and iron, aluminum, stainless steel, resin, etc. can be used.

Since no vulcanization-curing adhesive is used, a container body or a lid made of a thermoplastic elastomer can be used.

The crimping tool is preliminarily inserted into a molding die for the lid body or the container body, and is integrally molded with the lid body or the container body. Enclose the fluid.

Since the damper of the present invention does not use an adhesive and thus does not use a solvent, the working environment is improved without harming the health of the worker.

Since there is no vulcanization adhesion step, productivity and reliability can be improved.

Further, since heat during vulcanization and curing according to the conventional method is not applied to the container body, the viscous fluid does not expand and the filling amount can be increased. Therefore, the air inside the closed container can be reduced and the vibration damping property is improved.

[0013]

[Embodiment of the invention]

 Next, an embodiment of the present invention will be described with reference to the drawings.

In FIG. 1, a viscous fluid-sealed damper 10 is composed of a container body 11 and a lid body 14, in which a viscous fluid 12 is sealed, and the viscous flow of the viscous fluid 12 separates a support body and a supported body. Vibration isolation between them. At the center of the container body 11, a cylindrical stirring portion 13 for stirring the viscous fluid projects into the viscous fluid. A shaft member from a supporting member or a supported member is inserted into the cylindrical portion 20 of the stirring unit 13.

A cylindrical caulking tool 15 having an L-shaped cross section is applied to a viscous fluid sealing portion 21 where the mouth edge portion 11a of the container body 11 and the edge portion 14a of the lid body 14 are combined.

FIG. 2 shows a state in which the bent portion 17 of the crimping tool 15 is crimped so that the viscous fluid sealing portion 21 is compressed. In this case, the bent portion is on the lid side, and the viscous fluid 12 is enclosed. The ribs 16 are provided as necessary so that the compression force is increased when the caulking is performed, so that the compression force is partially increased.

FIG. 3 shows a caulking tool 15 having a cylindrical L-shaped cross section with the bending portion 17 on the container body 11 side.

In FIG. 4, the edge of the lid 14 of the viscous fluid-sealed damper 10 is a caulking tool 15 having a cylindrical L-shaped cross section, and the bent portion 17 of the caulking tool 15 is located on the container body 11 side. Caulking, viscous fluid 12 is enclosed.

The crimping tool is not limited to a cylindrical L-shaped cross section, and various cross-sectional shapes are conceivable.

FIG. 5 shows a caulking tool 18 having a U-shaped cross section.

FIG. 6 shows a caulking tool 19 having a C-shaped cross section.

Further, the crimping tool is not limited to a cylinder, but may be a triangular crimping tool 22, a square crimping tool 23, or an elliptical crimping tool 23 as shown in FIG. Needless to say

[0023]

[Effect of the invention]

 According to the present invention, the viscous fluid is generated by bending and crimping the caulking tool so that a compressive force is applied to the fluid sealing portion of the main body and the lid, with respect to the sealing portion for sealing the viscous fluid by the container body and the lid body. Can be easily enclosed.

Further, according to the present invention, the viscous fluid can be enclosed in a short time without performing the vulcanization adhesion, so that the productivity is improved. Also, the reliability of encapsulation is increased.

Furthermore, according to the present invention, since the vulcanization adhesion is not performed, the vibration isolation characteristics are improved by reducing the air in the closed container body and increasing the filling amount of the viscous fluid.

[Brief description of the drawings]

FIG. 1 shows a cross-sectional shape of a damper.

FIG. 2

FIG. 1 shows a crimped state.

FIG. 3 shows a case where the caulking direction is opposite.

FIG. 4 shows that the lid and the caulking tool are integrated.

FIG. 5 is a partial cross-sectional view obtained by crimping with a crimping tool having a U-shaped cross section.

FIG. 6 is a partial cross-sectional view obtained by crimping with a crimping tool having a C-shaped cross section.

FIG. 7 is a plan view showing various shapes of the crimping tool.

[Explanation of symbols]

 10 Viscous Fluid-enclosed Damper 11 Container Main Body 12 Lid Body 13 Cylindrical Stirring Part 14 Viscous Fluid 15 Cylindrical Section L-Shaped Caulking Tool, 16 Rib 17 Bending Section 18 Cross-sectional C-shaped Caulking Tool 19 Cross-sectional C-shaped Caulking Tool 20 Cylindrical Section 22 Triangular crimping tool 23 Square crimping tool 24 Elliptical crimping tool 20 Hole

Claims (5)

[Utility model registration claims] 1. A viscous fluid-sealed damper in which a viscous fluid is sealed in an elastic container, wherein the mouth edge of the container body filled with the viscous fluid and the edge of the lid are crimped by using a caulking tool. A viscous fluid-filled damper characterized by being enclosed. 2. The viscous fluid-sealed damper according to claim 1, wherein the caulking tool is integrally formed with the container body or the lid. 3. The viscous fluid-sealed damper according to claim 1, wherein an edge portion of the lid body is a caulking tool. 4. The crimping tool is iron, aluminum, stainless steel,
Alternatively, the viscous fluid-sealed damper according to claim 1, 2 or 3, which is made of resin. 5. The elastic container and lid are made of thermosetting rubber-like elastic material, butyl rubber, chloroprene rubber, natural rubber,
Alternatively, the viscous fluid-sealed damper according to claim 1, 2, 3, or 4, which is made of a thermoplastic elastomer.