JPH0544770A - Vibration control device - Google Patents

Abstract

PURPOSE:To provide a vibration control device that reduces the number of part items and make it compact in size and lighter in weight in addition to ease of setting work besides inexpensive in cost. CONSTITUTION:This vibro-isolator is made up of the following procedures that a recess 9 is formed in a rubber elastic body 1 at the side being attached to at least a vibro-isolating object 10 and a projection 11 formed in this vibration control object 10 itself and a nonbonded jog are made so as to be fitted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration damping device containing a fluid, which is preferably used as an engine mount, a body mount, a radiator mount, a battery mount of an automobile.

[0002]

2. Description of the Related Art As an anti-vibration device containing liquid, as shown in FIG. 7, a cavity 101 is formed in a rubber-like elastic body 100.
A partition plate 102 and a flexible film 103 that closes the space 101 are provided in the partition wall 102, and throttling passage means 104 that connects the two liquid chambers A and B defined by the partition plate 102 and filled with liquid with each other is provided. Things are known. The rubber-like elastic body 100 is vulcanized and adhered to the frame body 105, and is also vulcanized and adhered to the first mounting member 106 on the side to be attached to the vibration isolation target. Partition plate 102, flexible film 1 on frame 105
03 and the second mounting member 107 are fixed. The first mounting bracket 106 is mounted with the mounting bracket 108 on the side of the image stabilization.

[0003]

The conventional one requires a mounting member to be adhered to a rubber-like elastic body, which leads to an increase in the number of parts and weight and an increase in cost, and the mounting member is a rubber-like elastic member. Since they are bonded, there is a restriction on the mounting space and there is a limit to miniaturization. Furthermore, in order to attach the vibration-proof object to the first metal fitting, the nut must be tightened on the bolt of the first mounting metal fitting, which makes the mounting work troublesome.

Therefore, the present invention reduces the number of parts,
It is an object of the present invention to provide a vibration proof device which is compact and lightweight, easy to install and inexpensive.

[0005]

In order to achieve the above-mentioned object, the present invention is to form a concave or convex portion at least on a rubber-like elastic body on the side to be attached to a vibration-proof object, and to set the vibration-proof object itself or a fitting. The convex portion or the concave portion formed in the above is fitted to the non-adhesive concave and convex portions.

[0006]

According to the present invention, at least a concave portion or a convex portion is formed on the rubber-like elastic body on the side to be attached to the vibration isolator, and the convex portion or the concave portion formed on the vibration-proof object itself or the mounting metal fitting is not bonded to the concave-convex portion. Since the conventional fittings are unnecessary, the number of parts can be reduced, and the weight and size can be reduced. In addition, it is not necessary to tighten the bolts and nuts to attach the vibration-proof object, and the work can be facilitated because only the concavo-convex fitting is sufficient.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the drawings.

In the embodiment shown in FIG. 1, a partition plate 3 is provided in a space 2 formed in a rubber-like elastic body 1 and a flexible film 4 for closing the space 2.
And a throttle passage means 5 for connecting the two fluid chambers A and B defined by the partition plate 3 and filled with fluid with each other. The rubber elastic body 1 has a frame 6
Is vulcanized and adhered, and a partition plate 3, a flexible film 4, and a lid portion 7 are fixed to one end side of the frame body 6, and an air chamber is provided between the flexible membrane 4 and the lid portion 7. 8 is formed. Further, a concave portion 9 is formed on the side of the rubber-like elastic body 1 that is attached to the vibration isolation target 10. The anti-vibration object 10, for example, a radiator or a battery is formed with a convex portion 11 that fits into the concave portion 9. Ring-shaped protrusions 9A and 9B are formed in the recess 9, and these protrusions 9A and 9B prevent the protrusion 11 from coming out. The upper end side of the frame body 6 has a flange portion 6A that spreads outward in the radial direction. To prevent the anti-vibration device from falling. Install the anti-vibration device shown in FIG.
After the flange 6A is set in a state in which the flange 6A is mounted on the mounting bracket 12, the convex portion 11 of the vibration isolation target 10 such as a radiator or a battery is recessed in the rubber elastic body 1.
If it is fitted to, the installation work is completed.

In the embodiment shown in FIG. 2, the second frame body 13 is inserted into the rubber-like elastic body 1, and the second frame body 1 is inserted.
The partition plate 3, the flexible film 4, and the lid portion 7 are fixed to the lower end side of the frame 3, and the frame body 6 is fixed to the mounting bracket 12 with bolts and nuts. This is similar to the embodiment shown in FIG.

The embodiment shown in FIG. 3 shows an example in which the means for attaching the partition plate 3, the flexible film 4, and the lid portion 7 is changed to the lower end side of the frame body 6, and the other construction is shown in FIG. Similar to that shown.

In the embodiment shown in FIG. 4, a convex portion 91 is formed in place of the concave portion 9 formed in the rubber-like elastic body 1, and the convex portion 91 is formed in the concave portion 11 formed in the vibration isolation target 10.
Fit to 1.

In another embodiment shown in FIG. 5, a vibration isolation target 10 is used.
A recess 113 (in this case, a hole) is formed in the mounting metal fitting 112 to be mounted on, and the projection 91 formed on the rubber-like elastic body 1 is fitted into this recess 113. Since the recess 113 is a hole, the protrusion 91 is formed so as to extend upward from the bottom of the hole and cover the upper surface of the mounting member 112.

FIG. 6 shows a further downsized one,
The lid 7 is unnecessary, the second frame 13 is downsized and inserted into the rubber-like elastic body 1, and the partition plate 3 and the flexible film 4 are attached to the second frame 13.

In any of the embodiments, the vibration-proof target 10 or the mounting member 112 and the rubber-like elastic body 1 are in a non-bonded state. Further, the mounting metal fitting 12 that is mounted on the body side and the like and the frame body 6 are also in a non-bonded state. The configurations of the fluid chambers A and B, the throttle passage means 5 and the like are not limited to the illustrated example. Further, the frame 6 as in the embodiment shown in FIG.
It is also possible to abolish the above and replace the mounting bracket 12 with the mounting bracket 112 having a hole as shown in FIG. 5, and to mount the rubber-like elastic body 1 in the same manner as the convex portion 91 of FIG. In this case, the rubber-like elastic body 1 becomes a convex portion and is attached to the body side.
The same as the recess 113 is formed in this. In this way, the frame 6 is unnecessary, and instead, only the second frame 13 as shown in FIG. 2 needs to be provided.

[0015]

As described above, according to the present invention, at least the rubber-like elastic body on the side to be attached to the vibration isolator is formed with the concave portion or the convex portion on the vibration isolating object itself or the mounting metal fitting. By fitting the convex portion or the concave portion into a non-adhesive concave-convex fitting, the mounting metal fitting that has been vulcanized and bonded to the rubber-like elastic body becomes unnecessary, and the number of parts and the weight can be reduced and the cost can be reduced. Further, the size can be further reduced, and the fitting work can be facilitated because it is simply the concave and convex fitting.

[Brief description of drawings]

FIG. 1 is a sectional view showing a first embodiment of the present invention.

FIG. 2 is a sectional view showing a second embodiment.

FIG. 3 is a sectional view showing a third embodiment.

FIG. 4 is a sectional view showing a fourth embodiment.

FIG. 5 is a sectional view showing a fifth embodiment.

FIG. 6 is a sectional view showing a sixth embodiment.

FIG. 7 is a sectional view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rubber-like elastic body 2 Empty space 3 Partition plate 4 Flexible film 5 Throttle passage means 9 Recessed portion 10 Anti-vibration target 11 Convex portion

Claims (1)

[Claims] 1. A partition plate and a flexible film for closing the space are provided in a space formed in a rubber-like elastic body, and two liquid chambers defined by the partition plate and containing a fluid are mutually sealed. In a vibration isolator provided with a throttle passage means for communicating, at least a concave portion or a convex portion is formed on a rubber-like elastic body on a side to be attached to a vibration isolation target, and a convex portion or a recess formed on the vibration isolation target itself or a mounting metal fitting. An anti-vibration device, which is fitted with a non-adhesive concave and convex portion.