JPH03201284A - Oscillation absorbing device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a vibration absorbing device for supporting equipment.

Conventional Technology Vibration absorbers are generally used in various fields, but as acoustic technology has become more sophisticated in recent years, there has been an active development of vibration absorbers that can alleviate the negative effects that vibrations from audio equipment have on sound reproduction. It has become to.

FIG. 4 shows the above-mentioned audio equipment, where 1 is the main body of the audio equipment, and 2 is a vibration absorbing device attached to the main body.

A conventional vibration absorbing device used in such audio equipment will be described below.

FIG. 5 is a perspective view showing a conventional vibration absorbing device.

FIG. 6 is a sectional view showing how the vibration absorbing device shown in FIG. 5 is attached to equipment. The vibration absorber and the device are connected by passing through the third hole.

5 is a contact surface connected to the coupling part 4 and in contact with the bottom surface 3 of the device;
6 is a side wall connected to the contact surface 5 and extends downward; 7 is a vibration absorbing section connected to the side wall 6, which is made of a flexible material such as synthetic rubber, and absorbs vibrations when vibrations occur around the device. . Reference numeral 8 represents an annular outer wall connected to the vibration absorbing portion 7, and reference numeral 9 represents a support surface.

The operation of the vibration absorbing device configured as described above will be explained below.

In general, when such a conventional vibration absorbing device is attached to a light device, its sectional view is shown in FIG. Here, the vibration absorber 7 connected to the side wall 6 bends due to the load of the equipment, but since there is a space S1 between the vibration absorber 7 and the support surface 9, the vibration absorber 7 can further elastically deform. . Therefore, the vibration absorber 7 sufficiently plays the role of absorbing vibrations.

Problems to be Solved by the Invention However, with the above conventional configuration, when a vibration absorber is attached to a heavy device, or when the material forming the vibration absorber is deformed due to aging or environmental temperature, A part of the vibration absorber 7 is in contact with the floor surface 9 as shown in FIG.

In this case, since the vibration absorbing portion 7 cannot be elastically deformed any more, vibration absorption cannot be performed sufficiently, and the problem is that the vibration has an adverse effect on acoustic reproduction.

The present invention solves the above-mentioned conventional problems, and aims to provide a vibration absorbing device that maintains its vibration absorbing effect even if the vibration absorbing portion is significantly deformed.

Means for Solving the Problems To achieve this object, the vibration absorbing device of the present invention comprises a flexible first member located between a device and a supporting surface and absorbing vibrations of said device by flexing. a vibration absorbing section;
The second vibration absorbing section is provided with a flexible second vibration absorbing section having a larger bending force than the second vibration absorbing section.

Effect: With this configuration, when the vibration absorbing device is attached to a device to perform vibration absorption, the first and second vibration absorbing parts are bent, but a part of the first vibration absorbing part is bent on the supporting surface. In the case of contact, vibration absorption by the first vibration absorption cannot be performed sufficiently. However, since the second vibration absorbing section bends and absorbs the vibration, the vibration absorbing effect of the vibration absorbing device as a whole can be maintained.

EXAMPLE An example of the present invention will be described below with reference to the drawings.

Fig. 1 is a cross-sectional view showing the mounting condition when the vibration absorbing device of this embodiment is attached to equipment, and Fig. 2 is a sectional view showing the mounting state when the vibration absorbing device of the present invention is attached to heavy equipment. FIG. 3 is a perspective view of the vibration absorbing device of this embodiment.

1 and 3, 11 is the bottom surface of the device, and 12 is the joint formed on the top of the vibration absorber, which is the bottom surface 11 of the device.
The vibration absorber and equipment are connected by passing through the hole provided in the hole. Reference numeral 13 denotes a second vibration absorbing part which is attached to a flange part extending downward from the coupling part 12 and has a central horizontal part that contacts the bottom surface 11 of the device and a horizontal part that does not contact the bottom surface 11 of the device, and is made of, for example, synthetic rubber. It is made of a thick and flexible material. Reference numeral 14 denotes a side wall that is connected to the second vibration absorbing portion 13 and extends downward; 15 is a first vibration absorbing portion having a flange portion extending outward from the side wall 14 and a portion extending downward from the outer edge of the flange portion; The second vibration absorber 1 is made of a flexible material similar to the vibration absorber 13 of
3, the wall thickness is thin, and when vibration occurs around the device and the support surface 17 vibrates, this first. The second vibration absorber absorbs vibrations by bending. Reference numeral 16 indicates an annular outer wall connected to the first vibration absorbing portion 16, reference numeral 17 indicates a support surface, and reference numeral 18 indicates an auxiliary vibration absorbing portion extending downward from the side wall 14, which is thinner than the outer wall 16. . The outer wall 16 of the housing is structured to protrude below the auxiliary vibration absorbing section 18.

The first vibration absorbing part 15 is thinner than the second vibration absorbing part 13 and is easily bent.
It has priority over the vibration absorbing section 13 of.

The operation of the vibration absorbing device configured as described above will be explained below.

First, when the vibration absorbing device of this embodiment is attached to a light device, the first vibration absorbing portion 15 is mainly bent, as shown in a sectional view of FIG. In this case, since the device is light, even if the first vibration absorber 15 is bent, the auxiliary vibration absorber 18 is not in contact with the support surface 17 of the casing, so the first vibration absorber 15 can further elastically deform. Therefore, the vibration absorption effect of the first vibration absorption section 15 can be fully exhibited.

Note that since there is also a space S2 between the second vibration absorbing section 13 and the bottom surface 11 of the device, the vibration absorbing effect due to the elastic deformation of the second vibration absorbing section 13 can also be exhibited.

Next, when the vibration absorbing device of this example is attached to a heavy device, or when the material forming the vibration absorbing device of this example has changed over time or deformed due to environmental temperature, the installation will be in the second condition. As shown in the figure, the bottom surface of the auxiliary vibration absorber 18 comes into contact with the support surface 1.

In this case, the auxiliary vibration absorber 18 bends to absorb the vibration. In this case, the auxiliary vibration absorbing section 18 has a thinner wall thickness than the outer wall 16, and the pressure receiving section has greater flexibility than the vibration absorbing section 7 shown in FIG. 7, so that the vibration absorbing effect is large. Moreover, even in such a state, the second vibration absorbing section 13
Since there is a space S2 between and the bottom surface 11 of the device, the second vibration absorbing section 13 can further elastically deform, and the second vibration absorbing section 13 exhibits its vibration absorbing effect.

As described above, according to this embodiment, the first vibration absorbing section 15
Even if the vibration absorption effect is no longer sufficient, the vibration absorption effect of the second vibration absorption part and the auxiliary vibration absorption part is sufficient. By providing a vibration absorbing section, the vibration absorbing effect of the device can be maintained. Therefore, the same vibration absorbing device of this embodiment can be used even if the weight of the device is different.

Effects of the Invention As described above, the vibration absorbing device of the present invention has a thin first vibration absorbing portion and a second vibration absorbing portion thicker than the first vibration absorbing portion, thereby reducing the weight of the device. The vibration absorbing effect can be maintained regardless of the degree of deformation due to aging or environmental temperature of the material forming the light/heavy case or the vibration absorbing device.

Therefore, the same vibration absorbing device of the present invention can be used for equipment of different weights.

[Brief explanation of drawings]

Figure 1a is a sectional view showing how the vibration absorbing device according to the embodiment of the present invention is attached to a device; FIG. 2 is a sectional view showing the installation state when the vibration absorbing device according to the embodiment of the present invention is attached to heavy equipment, and FIG. 3 is a sectional view showing the state of the installation. FIG. 4 is a perspective view of an audio equipment such as a record player, FIG. 5 is a perspective view of a conventional vibration absorber, and FIG. 6a is a perspective view of a conventional vibration absorber. Figure 6 is a sectional view showing the installation state when it is installed on a device, Figure 6 is a sectional view showing the installation state when a conventional vibration absorber is installed on a light device, and Figure 7 is a sectional view showing the installation state when it is installed on a light device. This is a sectional view showing how the absorption device is attached to heavy equipment. 13...Second vibration absorbing section, 15...
First vibration absorber, 18...auxiliary vibration absorber.

Claims (4)

[Claims] (1) a flexible first vibration absorbing section that is located between a device and a support surface and absorbs vibrations of the device by bending;
A vibration absorbing device comprising: a flexible second vibration absorbing section having a larger bending force than the first vibration absorbing section. (2) The vibration absorbing device according to claim 1, wherein the first vibration absorbing section is formed to have a thinner wall thickness than the second vibration absorbing section. (3) It has a shape that has two cylindrical parts with different diameters as a whole, and the small diameter part has a connecting part to be connected to the equipment in the center part, and the flange part between the small diameter part and the large diameter part is the second part. 2
Claim 1 or 2, wherein the first vibration absorbing part is a flange part between the small diameter part and the coupling part and a part extending from an outer edge of the flange part to the supporting surface. 2. The vibration absorbing device according to 2. (4) The vibration absorbing device according to claim 3, further comprising an auxiliary vibration absorbing portion extending from one end of the small diameter portion in the direction of the support surface.