JPH0331952B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vibration isolating device using a spring.

In the conventional vibration isolator, a rubber 16 is disposed between a supporting member 1 and a supported member 3, as shown in FIG. For this reason, there was a drawback that sufficient vibration damping performance could not be maintained over many years due to deterioration of the rubber 16.

This invention was made to eliminate the above-mentioned drawbacks, and provides a vibration isolating device that does not deteriorate and has good vibration damping performance.

The figures will be explained below. In Figures 2 to 4, reference numeral 1 denotes a support member that can be attached to a device 2 that generates vibrations, such as a gas vent or disconnector, and is composed of a main body 1a and connecting plates 1b and 1c provided on the main body 1a. There is. 1d, 1e, 1f are the main body 1a and the connecting plate 1
The first to third through holes provided in b and 1c penetrate in the directions of the X, Y, and Z axes, which are orthogonal to each other. Reference numeral 3 denotes a supported member to which a device 4, such as a gas detector, which is easily damaged by vibration, can be attached, and is composed of a main body 3a and connecting plates 3b, 3c. 3d, 3e, and 3f are fourth to sixth through holes provided in the main body 3a and the connecting plates 3b, 3c, which penetrate in the X, Y, and Z axis directions. Reference numeral 5 designates a first shaft that passes through the first and fourth through holes 1d and 3d so as to be movable in the axial direction, and has clasps 6 at both ends and in the center.
is fixed. Reference numeral 7 denotes a first coiled metal spring, which is compressed and arranged between the main bodies 1a, 3a and the stopper 6. 8 is the second and fifth through hole 1e,
A second shaft penetrating 3e movably in the axial direction,
Clamps 9 are fixed at both ends and at the center. A second coiled metal spring 10 is compressed and placed between the stop 9 and the connecting plates 1b and 3b. 11
A third shaft passes through the second and sixth through holes 1f and 3f so as to be movable in the axial direction, and a stopper 12 is fixed to both ends and the center. A third coiled metal spring 13 is compressed and placed between the stopper 12 and the connecting plates 1c and 3c.

Each shaft 5, 8, 11 has a through hole 1d, 1e, 1
The diameter is smaller than that of holes f, 3d, 3e, and 3f, and a gap D is provided as shown in FIG.

Next, the operation will be explained. Now, when the device 2 vibrates in the Y-axis direction (FIG. 2, vertical direction), the second spring 10 vibrates and absorbs the vibration energy. Furthermore, when the device 2 vibrates in the Z-axis direction (in the left-right direction in FIG. 2), the third spring 13 expands and contracts to absorb the vibration energy. Further, when the device 2 vibrates in the X-axis direction (FIG. 3, left-right direction), the first spring 7 expands and contracts to absorb the vibration energy. Each shaft 5, 8, 11 and each through hole 1d, 3d, 1e, 3
As shown in FIG. 5, a gap D was provided between e, 1f, and 3f to allow each shaft 5, 8, and 11 to move freely in each axial direction. Furthermore, when device 2 is vibrating in the X-axis direction (Fig. 3, horizontal direction of the drawing),
Assume that vibration is applied in the axial direction (Fig. 3, vertical direction of the drawing). In this case, as shown in FIG. 7, the shaft 5 can be tilted until the side surface of the shaft 5 contacts the corners of each end of the first through hole 1d and the fourth through hole 3d. That is, if the device 2 is fixed, the device 4 can be moved a distance corresponding to the inclination angle of the shaft 5. At this time, the second spring 10 expands and contracts to absorb the vibration energy in the Y-axis direction. The shaft 11 is also inclined within the range of the gap between the second through hole 1f and the sixth through hole 3f. In addition, the movement (vibration) of the equipment is controlled by each spring 7,
This is possible within a range corresponding to the maximum compression amount of 10 and 13. Therefore, the vibration damping performance is good against vibrations in either direction.

Although the above description has been made regarding the case where the coiled springs 7, 10, and 13 are used, the same effect can be obtained by combining the corrugated washer 14 and the flat plate 15, as shown in FIG.

In addition, although the above description has been made using the shafts 5, 8, and 11 to support the respective springs 7, 10, and 13, the springs are assumed to be leaf springs (not shown), and the ends thereof are connected to each of the connecting plates 1b. , 1c, 3b, 3c and the main bodies 1a, 3a, the shafts 5, 8,
11 can be omitted.

As described above, according to the present invention, a plurality of springs that generate spring pressure between the supporting member and the supported member in the three axes directions of the X-axis, Y-axis, and Z-axis, which are orthogonal to each other, are used to connect the supporting member and the supported member. By connecting the support member to the supported member, vibration damping performance can be improved without deterioration.

[Brief explanation of the drawing]

Fig. 1 is a front view of a conventional vibration isolator, Fig. 2 is a front view of an embodiment of the present invention, Fig. 3 is a side view of Fig. 2, and Fig. 4 is a plan view of Fig. 2; FIG. 5 is a partially enlarged view of one embodiment of this invention, FIG. 6 is a partially enlarged view of another embodiment of this invention, and FIG. 7 is an operation explaining the operation when vibration is applied in the Y-axis direction. It is a diagram. In the figure, 1 is a support member, 2 is a device (first device),
3 is a supported member, 4 is a device (second device), 5 is a first shaft, 8 is a second shaft, 11 is a third shaft, 7 is a first spring, 10 is a second spring , 13 is the third spring.

Claims (1)

[Claims] 1. A support member to which a first device that generates vibration is attached, a supported member to which a second device that is insulated from the vibration is attached, which is arranged at a predetermined distance from this support member, and this supported member. a first axis that is movable in the X-axis direction passing through the supporting member; a second axis that is movable in the Y-axis direction passing through the supported member and the supporting member; a third shaft penetrating the support member and movable in the Z-axis direction; a third shaft disposed between the support member and the first shaft and between the supported member and the first shaft; a first spring that generates spring pressure when the support member and the supported member move in the X-axis direction; a second spring that is respectively disposed between the supporting member and the third axis and generates spring pressure when the supporting member and the supported member move in the Y-axis direction; and a third spring disposed between the supported member and the third axis to generate spring pressure when the supporting member and the supported member move in the Z-axis direction. Device.