JPS6228546A - Vibration-proof support device - Google Patents

Abstract

PURPOSE:To simplify the structure by supporting the dead load of a material to be supported in the vibration-proof state by a support spring member, and damping the amplitude of vibration in directions of X-axis, Y-axis and Z-axis by spring members disposed in + or - directions in the Y-axis direction. CONSTITUTION:A space portion 3 is disposed between a material 1 to be supported in the vibration-proof state and a vibrator 2, and the dead load of the material 1 is supported by a spring member 5 disposed in direction of Z-axis. A pair of spring members 7U, 7L capable of following the displacement of vibration in directions of X, Y, Z axes are disposed between the side walls 31 and 33 and between the side walls 32 and 34 of the space portion 3. Thus, with a spring having a low spring constant, the amplitude of vibration can be decreased without any additional member.

Description

[Detailed description of the invention] The present invention provides a vibration-isolated support for a vibrating body,
, relates to a device for vibration-proof support in the Y and Y-axis directions.

Obedience! Conventionally, in order to provide anti-vibration support for a device to be protected from vibration, such as a computer, on a vibrating body such as a car, the following steps have been taken: Support from the vibrating body with rubber, coil springs, leaf springs, air springs, etc. 2. The vibration-isolated support is in the shape of a cube or rectangular parallelepiped, and the vibrating body is in the same cube or rectangular parallelepiped shape. However, a space portion with dimensions slightly larger than that of the supports to be vibration-isolated is formed, and the supports to be vibration-isolated are loosely housed inside this space of the vibrating body, and the outer peripheral surfaces of these supports to be vibration-isolated and , installing a buffer body in each of the six gaps between the side wall or earth wall of the vibrating body and the earth wall and the bottom wall that face each other, or the side wall or the top wall and the bottom wall, etc. method has been adopted.

[Problem to be solved by 1] However, in these conventionally known methods, the spring member that supports the weight of the object to be vibration-isolated also serves as a buffer member, and therefore the vibration-isolating effect cannot be sufficiently exerted. If it is attempted to do so, it is necessary to use a spring member with a low spring constant, which increases the vibration amplitude and makes handling difficult. To overcome this difficulty, it is necessary to add elements to provide vibration damping.

Therefore, the present invention uses a spring with a low spring constant while
It is an object of the present invention to provide a novel vibration-isolating support device that is capable of reducing vibration amplitude without adding a member for providing vibration damping.

■Means for producing
And as shown in Figure 2, in the rectangular coordinate system,
In order to vibration-proofly support a substantially cubic or rectangular parallelepiped support 1 having four side surfaces parallel to the Y and Y-axis directions and one top and bottom surface on a vibrating body 2. , the vibrating body 2 has a space 3 having the same shape as the vibration-isolated support 1 but having a slightly larger size, and the side walls 31 to 3
4 and the bottom wall 35 on the side surface 4.4 of the vibration-isolated support 1. ~4. and is provided parallel to the bottom surface 45 and at a distance from them, and the self-weight of the vibration-isolated support 1, the bottom surface 45, and the vibrating body 2
The vibrating body 2 is mainly supported by a spring member 5 disposed in the Y-axis direction between the bottom wall 35 of the space 3 and the vibrating body 2. Each side wall 31 and 3. which face each other in the X- and Y-axis directions of the space 3 provided in 3. A pair of spring members 7U and 7L that can follow the vibration displacement in the J, Y and Y axis directions are arranged between 32 and 34 and facing each other in the two axial directions. Opposing upper surfaces in the Y-axis direction of the vibration-isolated support 1 4. The device is characterized by a #3 swing support device that surrounds and supports the bottom surface 46 and the bottom surface 46, respectively.

A1〒-11□□-U Since the present invention has the above-mentioned configuration, the self-weight of the vibration-isolated support 1 can be reduced by the spring member 5 having a sufficiently low spring constant.
Furthermore, vibrations in the three directions of the X, Y, and Z axes can be similarly damped by spring members 7U and 7L made of rubber net or the like having a low spring constant.

and-1-Takumi Hereinafter, the present invention will be described with reference to No. 1 and No. 2 of the attached drawings showing the embodiments thereof.
This will be explained in detail based on the figures.

For example, in the Cartesian coordinate system X, Y and Y, as shown in the figure
For vibration-isolating support on a vibrating body 2 a vibration-isolated support 1 having a cubic or rectangular parallelepiped shape having four circumferential sides and one top and bottom surface in the axial direction. In addition, a space 3 is formed in the vibrating body 2, which has a cube or rectangular parallelepiped shape that is almost the same as the vibration-isolated support 1, or whose dimensions are generally slightly larger than that. This space 3 is divided into four side walls 3. ~3. and a bottom wall 35, and inside this space 3, the vibration-isolated support 1 is placed between its four vertical circumferential surfaces 41 to 44 and the bottom surface 4. However, each side wall 31 to 3 of the space 3 formed in the vibrating body 2 is and bottom wall 3. and parallel to each other and spaced approximately equally apart from each other. The dead weight of the vibration-isolated support 1 is determined by the spring constants of several pieces arranged between the bottom surface 4° and the bottom wall 35 of the space 3 of the vibrating body 2, which have sufficiently low spring constants in two axial directions. It is supported by the spring member 5 that is

, In order to buffer the vibration-isolated support 1 from vibration input from the vibrating body 2 with a sufficiently low spring constant, a pair of opposing side walls bounding a space 3 formed in the vibrating body 2,
That is, 31 and 33 and 32 and 3. To, respectively,
Those opposite sides 41 and 4, and 42 and 4 of the support to be vibration-isolated 1. on each side 41 to 4. at a position slightly smaller than the height and width dimensions of . Four hooks 6 are placed in each of the two upper and lower stages in the height direction of the vibration-isolated support 1 symmetrically with respect to the center of the vibration-isolated support 1, and and 3. and 32 and 3. The opposing hooks 6, which are arranged in upper and lower rows, are connected to two sets of strands of wire 7. ．． 72 and an upper rubber net or string group 7U consisting of 2 ffl strands 7, . 7. The rubber net or rubber string group 7L is installed so as to cover the top surface 46 and bottom surface 4° of the vibration-isolated support 1, respectively. In addition, the rubber net or rubber string group 70 above and below these. The spring constant of the spring is such that it can smoothly follow vibration displacement in the X, Y, and Z axis directions, and provides high frequency isolation and high vibration damping properties.
The spring should be selected to be sufficiently low in the x, y, and Z axis directions, or should have a predetermined spring constant in each axis direction.

Also, these rubber nets or rubber string groups 711.71
The arrangement of is not limited to that shown in the diagram,
It is of course possible that other arrangements could be made to provide separate predetermined damping in each axial direction if desired.

Since the present invention has the above configuration, the dead weight of the vibration-isolated support 1 is supported by the spring member 5 having a sufficiently low spring constant in the Z-axis direction, and its X
, Y- and Z-axis directions can be damped by the rubber net or the rubber string groups 711, 7L.

Effects of the Invention Since the present invention has the above-described structure and operation, the self-weight of the vibration-isolated support is supported by its own support spring member, and the vibration amplitude in the X, Y, and Z axis directions is reduced. This provides an excellent effect in that it can be damped in the l-axis direction by a rubber net or a group of rubber strings as a buffer spring member disposed above the l-axis. Therefore, the present invention provides an optimal vibration-isolating support device for supporting, for example, a computer mounted on an automobile while isolating it from the vibrations of the automobile.

[Brief explanation of the drawing]

FIG. 1 is a schematic front view showing one embodiment of the present invention, and FIG. 2 is a schematic plan view thereof. DESCRIPTION OF SYMBOLS 1... Vibration-isolated support, 2... Vibrating body, 3... Space, 31-3,... Side wall, 35... Bottom wall, 41-44
・Surrounding surface, 45.・Bottom surface, 5.・Spring member for supporting own weight, 6
・Hook, 7U, 几...Rubber net or rubber string group.

Claims (1)

[Claims] 1. In a rectangular coordinate axis system, a substantially cubic or rectangular parallelepiped having four side surfaces parallel to the X, Y, and Z axis directions, and six circumferential surfaces: a top surface and a bottom surface. In order to provide vibration-isolated support for a vibration-isolated support on a vibrating body, a space having a shape similar to that of the vibration-isolated support but slightly larger than that of the vibration-isolated support is provided in the vibrator with side walls and a bottom wall thereof. , is installed parallel to and spaced apart from the side and bottom surfaces of the support to be vibration-isolated, and the self-weight of the support to be vibration-isolated is distributed along the Z-axis between the bottom surface and the bottom wall of the space of the vibrating body. In order to support the vibrating body mainly by spring members arranged in the direction of the vibration body, and to buffer the vibration input of the vibrating body with a sufficiently low spring constant, A pair of spring members capable of following vibration displacement in the X, Y, and Z axis directions are installed between the side walls, and are arranged mutually in the Z axis direction so as to cover the top and bottom surfaces of the vibration-isolated support. A vibration isolating support device characterized by being arranged opposite to, respectively. 2. The spring constant of the spring member that supports the weight of the object to be vibration-isolated is selected to have a sufficiently low spring constant so that it can exhibit the vibration-isolating effect in the Z-axis direction. A vibration isolation support device according to claim 1. 3. The spring member that can follow the vibration displacement in the X, Y and Z axis directions is selected to have high frequency blocking properties and high vibration damping properties. Anti-vibration support device. 4. Claim 3, wherein the spring member having high frequency blocking properties and high frequency damping properties is a rubber net or a group of rubber strings.
Anti-vibration support device as described in section. 5. The vibration isolation support device according to claim 4, wherein the spring constants of the rubber net or the group of rubber strings in the X, Y, and Z directions are selected to be sufficiently low. 6. The vibration isolating support device according to claim 4, wherein the spring constants of the rubber net or the group of rubber strings in the X, Y, and Z axis directions can be arbitrarily set to desired values.