Anti-vibration device

Abstract

To provide a vibration isolation device having a new structure.SOLUTION: A vibration isolation device comprises a first plate, a first mesh spring on the first plate, a cover on the first mesh spring, a bezel above the cover, a second mesh spring on the bezel, a second plate on the second mesh spring, and a fastening component fastening the first plate, the cover, the bezel, and the second plate. The inner width of the bezel may be larger than the width of the first plate. The vibration isolation device also comprises a third mesh spring between the bezel and the cover. The bezel may comprise a leg surrounding a shaft part of the fastening component and the third mesh spring, and extending downward from a bottom surface.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] One embodiment of the present invention relates to an anti-vibration device. [Background technology]

[0002] Possible noise sources in ships include vibrations from the main and auxiliary engines of the ship, and vibrations from the exhaust gas pipes from these main and auxiliary engines. A wire mesh spring vibration isolation device is known as a mechanism for suppressing the transmission of these vibrations (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-145911 Summary of the Invention [Problem to be solved by the invention]

[0004] An object of one embodiment of the present invention is to provide an anti-vibration device having a novel structure. Another object is to provide an anti-vibration device that maintains its original vibration-damping effect even after installation. Another object is to provide an anti-vibration device that can be installed safely. Furthermore, another object is to provide an anti-vibration device that is easy to handle. [Means for solving the problem]

[0005] A vibration-damping device according to one embodiment of the present invention comprises a first plate, a first mesh spring on the first plate, a cover on the first mesh spring, a bezel on the cover, a second mesh spring on the bezel, a second plate on the second mesh spring, and fastening components that fasten the first plate, the cover, the bezel, and the second plate together.

[0006] A vibration-damping device according to one embodiment of the present invention comprises a first bezel, a first mesh spring on the first bezel, a first cover on the first mesh spring, a second bezel on the first cover, a second mesh spring on the second bezel, a second cover on the second mesh spring, and fastening parts for fastening the first bezel, the first cover, the second bezel, and the second cover together, wherein the inner width of the first bezel is greater than the outer width of the first cover. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a schematic perspective view of an anti-vibration device according to an embodiment of the present invention. [Figure 2] 1A and 1B are schematic side and cross-sectional views of an anti-vibration device according to one embodiment of the present invention. [Figure 3] 1A and 1B are schematic side and cross-sectional views of an anti-vibration device according to one embodiment of the present invention. [Figure 4] 1A and 1B are schematic side and cross-sectional views of an anti-vibration device according to one embodiment of the present invention. [Figure 5] 1A and 1B are schematic side and cross-sectional views of an anti-vibration device according to one embodiment of the present invention. [Figure 6] 1 is a schematic top view of an anti-vibration device according to an embodiment of the present invention; [Figure 7] 1 is a schematic perspective view of an anti-vibration device according to an embodiment of the present invention. [Figure 8] 1A and 1B are schematic side and cross-sectional views of an anti-vibration device according to one embodiment of the present invention. [Figure 9] 1A and 1B are schematic side and cross-sectional views of an anti-vibration device according to one embodiment of the present invention. [Figure 10] 1 is a schematic perspective view of an anti-vibration device according to an embodiment of the present invention. [Figure 11] 1A and 1B are schematic side and cross-sectional views of an anti-vibration device according to one embodiment of the present invention. [Figure 12] 1A and 1B are schematic side and cross-sectional views of an anti-vibration device according to one embodiment of the present invention. [Figure 13] 1 is a schematic perspective view of an anti-vibration device according to an embodiment of the present invention. [Figure 14]1A and 1B are schematic side and cross-sectional views of an anti-vibration device according to one embodiment of the present invention. [Figure 15] 1A and 1B are schematic side and cross-sectional views of an anti-vibration device according to one embodiment of the present invention. [Figure 16] 1 is a schematic top view of an anti-vibration device according to an embodiment of the present invention; [Figure 17] 1A and 1B are schematic side and cross-sectional views of an anti-vibration device according to one embodiment of the present invention. [Figure 18] 1 is a schematic top view of an anti-vibration device according to an embodiment of the present invention; [Figure 19] 1A and 1B are schematic side and cross-sectional views of an anti-vibration device according to one embodiment of the present invention. [Figure 20] 1 is a schematic top view of an anti-vibration device according to an embodiment of the present invention; [Figure 21] 1 is a schematic top view of an anti-vibration device according to an embodiment of the present invention; [Figure 22] 1 is a schematic top view of an anti-vibration device according to an embodiment of the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0008] Hereinafter, each embodiment of the present invention will be described with reference to the drawings, etc. However, the present invention can be embodied in various forms without departing from the spirit of the present invention, and should not be construed as being limited to the description of the embodiments exemplified below.

[0009] In order to clarify the description, the drawings may show the width, thickness, shape, etc. of each part schematically compared to the actual embodiment, but these are merely examples and do not limit the interpretation of the present invention. In this specification and each drawing, elements having the same functions as those explained in the previous drawings may be given the same reference numerals, and duplicate explanations may be omitted. In the attached drawings, for convenience, the XY plane is defined as the horizontal plane, and the Z direction is defined as the vertical direction.

[0010] In this specification and claims, when describing an aspect in which another structure is placed on top of another structure, the term "above" is used unless otherwise specified, and includes both a case in which another structure is placed directly above the structure so as to be in contact with the structure, and a case in which another structure is placed above the structure via another structure. Furthermore, in the Z direction described above, the term "above" may be expressed as "above" or "below," or "upward" or "downward."

[0011] First Embodiment 1. Overall structure In this embodiment, the structure of an anti-vibration device 100 according to one embodiment will be described. As shown in FIG. 1 , the anti-vibration device 100 includes a first plate 102-1 and a second plate 102-2, and a cover 104 and a bezel 106 between the first plate 102-1 and the second plate 102-2. Furthermore, the anti-vibration device 100 includes a screw 108, a first nut 110-1, and a second nut 110-2 as fastening components. The screw 108 passes through the first plate 102-1, the second plate 102-2, the cover 104, and the bezel 106, and can further fasten them together using the first nut 110-1 and the second nut 110-2. While the above description has been given with respect to an example in which two nuts, the first nut 110-1 and the second nut 110-2, are used for the screw 108, the number of nuts is not limited. Furthermore, when fastening, washers 112 may be placed between the head of the screw 108 and the second plate 102-2, and between the first nut 110-1 and the first plate. The washer 112 between the first nut 110-1 and the first plate 102-1 is not shown. Furthermore, although a combination of a screw, nut, and washer has been exemplified as the fastening parts, a quick release, a clamp, a toggle clamp, a cam lever, or the like can also be used.

[0012] The vibration isolation device 100 is used to suppress vibration transmission from a vibration source. For example, when the vibration source is piping on a ship, the vibration isolation device 100 can be installed by being fixed to a sandwiching steel member 114, which is part of the structure of the ship, as shown in FIG. 1. The sandwiching steel member 114 is disposed between the cover 104 and the bezel 106, that is, sandwiched between the cover 104 and the bezel 106. Although not shown, the piping is installed on the sandwiching steel member 114 or is installed on the sandwiching steel member 114 via a connecting portion. When the piping is connected to the sandwiching steel member 114, the vibration isolation device 100 is fixed to a main body 116 of the ship. For example, as shown in FIG. 1, the main body 116 is disposed between a first plate 102-1 and a first nut 110-1, and is fastened and fixed by the first nut 110-1 and a screw 108. The screw 108 and the second nut 110-2 maintain a constant distance between the clamping steel material 114 and the main body portion 116, while even if the distance between the clamping steel material 114 and the main body portion 116 changes due to vibration, the change can be absorbed by the mesh spring described below. 2.Cross-sectional structure 2-1. Cross-sectional structure-1

[0013] Fig. 2 shows a side view and a cross-sectional schematic diagram of the vibration isolation device 100 shown in Fig. 1. For convenience of explanation, Fig. 2 defines the X, Y, and Z directions. When facing the side of the vibration isolation device 100, the X direction corresponds to the front-to-rear direction, the Y direction corresponds to the horizontal direction, and the Z direction corresponds to the vertical direction. That is, in the vibration isolation device 100 shown in Fig. 2, the direction in which the screw 108 penetrates the first plate 102-1 and the second plate 102-2 is the Z direction, and the head of the screw 108 is above the screw shank 108-1.

[0014] 2, the vibration isolation device 100 has a pair of a first plate 102-1 and a second plate 102-2. Between the first plate 102-1 and the second plate 102-2, a cover 104, a bezel 106, a first mesh spring 120-1, and a second mesh spring 120-2 are arranged.

[0015] The first plate 102-1 and the second plate 102-2 have through holes through which the screws 108 pass. Washers 112 can be placed between the first plate 102-1 and the first nuts 110-1 and between the second plate 102-2 and the heads of the screws 108, respectively, to prevent the heads of the screws 108 and the first nuts 110-1 from sinking or loosening.

[0016] A first mesh spring 120-1 and a second mesh spring 120-2 are provided between the first plate 102-1 and the second plate 102-2. The first mesh spring 120-1 is disposed on the first plate 102-1, and the second mesh spring 120-2 is disposed below the second plate 102-2. A cover 104 and a bezel 106 are provided between the first mesh spring 120-1 and the second mesh spring 120-2.

[0017] In the above-described arrangement, from the bottom up, there is the first plate 102-1, the first mesh spring 120-1, the cover 104, the bezel 106, the second mesh spring 120-2, and the second plate 102-2.

[0018] The cover 104 on the first mesh spring 120-1 is arranged to cover the top and side surfaces of the first mesh spring 120-1. The bezel 106 below the second mesh spring 120-2 is arranged to house the second mesh spring 120-2. Like the cover 104, the bezel 106 is arranged to cover the bottom and side surfaces of the second mesh spring 120-2.

[0019] The above-described structure that covers the mesh springs can prevent paint from getting into the first mesh spring 120-1 and the second mesh spring 120-2, for example, when painting them after installation on a structure such as a ship. If paint gets in, it hardens inside the first mesh spring 120-1 or the second mesh spring 120-2, which can have a significant impact on the spring characteristics of the first mesh spring 120-1 or the second mesh spring 120-2. By adopting a structure that can prevent paint from getting in, it is possible to prevent the spring characteristics from being affected.

[0020] Furthermore, as shown in FIG. 2, the inner width W1 of the bezel 106 is larger than the width W2 of the second plate 102-2. The inner width W1 of the bezel 106 indicates the width of the inner wall or the diameter of the bottom surface, as shown in FIG. 2. The width W2 of the second plate 102-2 indicates the diameter of the second plate 102-2, as shown in FIG. 2. Since the inner width W1 of the bezel 106 is larger than the width W2 of the second plate 102-2, the side walls of the bezel 106 do not come into contact with the second plate 102-2, and a portion of the second plate 102-2 can be accommodated inside the bezel 106. As a result, the second mesh spring 120-2 can be more reliably covered by the side walls of the bezel 106.

[0021] The cover 104 and the first plate 102-1 have the same configuration as the bezel 106 and the second plate 102-2 described above. Although not shown, if the inner width of the cover 104 is W1 and the width of the first plate 102-1 is W2, the inner width W1 of the cover 104 is larger than the width W2 of the first plate 102-1. Therefore, the side wall of the cover 104 and the first plate 102-1 do not come into contact with each other, and a portion of the first plate 102-1 can be accommodated inside the cover 104. As a result, the side wall of the cover 104 can more reliably cover the first mesh spring 120-1.

[0022] The relationship between the depth of the bezel 106 and the thickness of the second mesh spring 120-2, and the relationship between the depth of the cover 104 and the thickness of the first mesh spring 120-1, are arbitrary. For example, after the vibration isolation device 100 is installed, as shown in FIG. 2, the depth D1 of the bezel 106 may be equal to or greater than the thickness T1 of the second mesh spring 120-2. In other words, the thickness T1 of the second mesh spring 120-2 may be equal to or less than the depth D1 of the bezel 106. Although not shown, the former may be equal to or less than the latter. Preferably, to effectively prevent paint from seeping in, the vibration isolation device 100 is configured so that the depth D1 of the bezel 106 is equal to or greater than the thickness T1 of the second mesh spring 120-2 so that the second mesh spring 120-2 is not exposed between the bezel 106 and the second plate 102-2. However, when spraying paint onto the bezel 106 from an oblique direction relative to the vibration-damping device 100, for example, when spraying paint toward the part where the bottom and side surfaces of the bezel 106 are connected, the thickness T1 of the second mesh spring 120-2 may be greater than or equal to the depth D1 of the bezel 106, since the paint can be prevented from penetrating if the width of the bezel 106 is sufficiently wide.

[0023] 2, the depth D2 of the cover 104 may be equal to or greater than the thickness T2 of the first mesh spring 120-1. In other words, the thickness T2 of the first mesh spring 120-1 may be equal to or less than the depth D2 of the cover 104. Although not shown, the former may be equal to or less than the latter. Preferably, to effectively prevent paint from entering, the vibration isolation device 100 is configured so that the depth D2 of the cover 104 is equal to or greater than the thickness T2 of the first mesh spring 120-1 so that the first mesh spring 120-1 is not exposed from the cover 104 and first plate 102-1. However, when spraying paint onto the cover 104 from an oblique direction relative to the vibration-damping device 100, for example, when spraying paint toward the part where the top and side surfaces of the cover 104 are connected, the thickness T2 of the first mesh spring 120-1 may be greater than or equal to the depth D2 of the cover 104, since the paint can be prevented from penetrating if the width of the cover 104 is sufficiently wide.

[0024] 3, the depth D1 of the bezel 106 may be equal to or less than the thickness T1 of the second mesh spring 120-2, or, although not shown, the former may be equal to or greater than the latter. Similarly, the depth D2 of the cover 104 may be equal to or less than the thickness T2 of the first mesh spring 120-1, or, although not shown, the former may be equal to or greater than the latter.

[0025] 2 indicates the length from the bottom surface of the bezel 106 to the end 106-11 of the side wall. Furthermore, thickness T1 indicates the length of the second mesh spring 120-2 in the Z direction. Furthermore, thickness T1 may indicate the shortest length from the bottom surface of the bezel 106 to the first surface 102-21 when the second mesh spring 120-2 is in contact with the bottom surface of the bezel 106 and the first surface 102-21 of the first plate 102-1 that faces the second mesh spring 120-2.

[0026] 2, when the main body of the vessel is disposed between the first plate 102-1 and the first nut 110-1 after the vibration isolation device 100 is installed, the depth D2 of the cover 104 should be equal to or less than the sum of the thickness T2 and the length of the first plate 102-1 in the Z direction. If the depth D2 is longer than the above-mentioned sum, the cover 104 may come into contact with the main body 116. Here, the definitions of the depth D2 and the thickness T2 are the same as those of the depth D1 and the thickness T1 described above.

[0027] 2, the vibration-damping device 100 further includes a third mesh spring 120-3. The third mesh spring 120-3 is provided so as to cover the periphery of the screw 108. By providing the first mesh spring 120-1, the second mesh spring 120-2, and the third mesh spring 120-3 in this manner, the vibration-damping device 100 can suppress the transmission of vibrations in various directions, such as the vertical and horizontal directions.

[0028] Additionally, the third mesh spring 120-3 is disposed between the first mesh spring 120-1 and the second mesh spring 120-2. Furthermore, a cover 104 is disposed between the first mesh spring 120-1 and the third mesh spring 120-3, and a bezel 106 is disposed between the second mesh spring 120-2 and the third mesh spring 120-3. This arrangement prevents the third mesh spring 120-3 from contacting the first mesh spring 120-1 and the second mesh spring 120-2, and prevents the mesh springs from shifting relative to each other.

[0029] When the third mesh spring 120-3 is placed on a ship or the like, it is covered with the sandwiched steel material 114. The thickness T3 of the third mesh spring 120-3 is variable, and can be adjusted to match the thickness of the sandwiched steel material 114 between the bezel 106 and the cover 104, for example.

[0030] The screw 108 passes through the through-hole of the first plate 102-1, the through-hole of the second plate 102-2, the through-hole of the cover 104, and the through-hole of the bezel 106.

[0031] As an optional configuration, the vibration isolation device 100 may include a cylindrical center stud 128 surrounded by the first mesh spring 120-1, the second mesh spring 120-2, the cover 104, and the bezel 106. As shown in FIG. 2, the center stud 128 is provided between the first plate 102-1 and the second plate 102-2 so as to leave a space 130. The center stud 128 is also arranged so as to partially cover the threaded shank 108-1. As shown in FIG. 2, the center stud 128 may partially cover the threaded shank 108-1 between the first plate 102-1 and the second plate 102-2, and the threaded shank 108-1 may have a portion that is not covered by the center stud 128.

[0032] 2, the above-mentioned space 130 can be provided in the portion of the threaded shaft portion 108-1 that is not covered by the center stud 128. The space 130 is a space that can accommodate compression of the mesh spring that occurs when the vibration isolation device 100 is installed.

[0033] The center stud 128 is disposed between the screw shaft portion 108-1 and the first mesh spring 120-1, second mesh spring 120-2, and third mesh spring 120-3. The center stud 128 is also disposed within through holes formed in the cover 104 and the bezel 106. Therefore, the diameters of the through holes formed in the cover 104 and the bezel 106 are larger than the diameter of the screw 108 and the outer diameter of the center stud 128.

[0034] The center stud 128 prevents excessive tightening of the screw 108 and the first and second nuts 110-1 and 110-2 when installing the vibration isolation device 100. This tightening compresses the first mesh spring 120-1, second mesh spring 120-2, and third mesh spring 120-3 in the vertical direction, shortening the distance between the first plate 102-1 and the second plate 102-2 compared to the distance before installation. However, the presence of the center stud 128 shortens the distance between the first plate 102-1 and the second plate 102-2 by the length of the space 130, but does not shorten it beyond the length L1 of the center stud 128. More specifically, the shortest distance between the first surface 102-11 of the first plate 102-1 facing the first mesh spring 120-1 and the first surface 102-21 of the second plate 102-2 does not shorten it beyond the length L1 of the center stud 128.

[0035] Furthermore, in the case of an anti-vibration device 200 having a different configuration, which will be described later, the center stud 228 is provided so as to be able to contact the first bezel 206-1 and the second plate 202-2, and therefore the distance that is shortened during fastening as described above is the shortest distance between the first bezel 206-1 and the second plate 202-2. In other words, the above-mentioned distance can be the distance between the components that the upper and lower ends of the center stud 228 contact.

[0036] 2, the space 130 disposed between the center stud 128 and the second plate 102-2 has a certain size before the vibration isolation device 100 is installed. However, after the vibration isolation device 100 is installed, as described above, the distance between the first plate 102-1 and the second plate 102-2 becomes shorter than before installation due to the tightening of the screw 108 and the first nut 110-1, and the space 130 becomes smaller by that shortening amount, or when the distance between the first plate 102-1 and the second plate 102-2 is the length L1 of the center stud 128, the space 130 disappears. 2-2. Cross-sectional structure-2

[0037] Figure 4 shows a side view and a cross-sectional view of the vibration isolation device 100 shown in Figure 1. What differs from the vibration isolation device 100 shown in Figure 2 is that the bezel 106 has legs 132. Below, explanations of configurations that are the same as or similar to those in Figure 2 may be omitted.

[0038] As shown in FIG. 4, the bezel 106 is provided to surround the second mesh spring 120-2 and has legs 132 on its bottom surface. The legs 132 are disposed below the bottom surface of the bezel 106 and extend downward. The legs 132 may also be disposed on the cover 104 depending on the installation direction of the vibration isolation device 100. For example, when the vibration isolation device 100 is installed so that the head of the screw 108 is disposed downward in FIG. 2 and the first nut 110-1 is disposed upward, the legs 132 are disposed on the cover 104. The position of the legs 132 in this case is the same as when the bezel 106 has the legs 132.

[0039] Furthermore, for example, when the vibration isolation device 100 is installed so that the threaded shaft portion 108-1 is disposed horizontally, i.e., in the left-right direction in FIG. 4, the legs 132 may be disposed on both the cover 104 and the bezel 106. In this case, the legs 132 of the cover 104 and the bezel 106 are disposed facing each other, so the lengths of the legs 132 of the cover 104 and the bezel 106 need only be long enough so that they do not come into contact with each other. For example, the total length of the legs 132 of the cover 104 and the bezel 106 need only be equal to or less than the thickness T3 of the third mesh spring 120-3, as shown in FIG. 4.

[0040] The legs 132 are disposed around the third mesh spring 120-3 and are provided so as to cover the side surfaces of the third mesh spring 120-3. However, the legs 132 are provided so as to cover only part of the third mesh spring 120-3, rather than the entire third mesh spring 120-3. In other words, the length of the legs 132 is shorter than the thickness T3 of the third mesh spring 120-3. The length of the legs 132 is also equal to or shorter than the thickness of the sandwiching steel material 114.

[0041] An inner width W3 of the leg 132 is smaller than an inner width W1 of the bezel 106. Furthermore, the leg 132 is disposed inside the through hole of the sandwiching steel material 114 through which the screw shaft portion 108-1 passes, and is disposed outside the third mesh spring 120-3. Therefore, the leg 132 is disposed between the third mesh spring 120-3 and the sandwiching steel material 114, and the third mesh spring 120-3 is disposed apart from the sandwiching steel material 114.

[0042] As described above, providing the legs 132 on the bezel 106 makes it possible to prevent paint from getting into the third mesh spring 120-3 when painting after installation of the vibration-damping device 100, without interfering with the installation of the vibration-damping device 100. This makes it possible to prevent paint from adversely affecting the spring characteristics of the third mesh spring 120-3. 2-3. Cross-sectional structure-3

[0043] Figure 5 shows a side view and a cross-sectional view of the vibration isolation device 100 shown in Figure 1. What differs from the vibration isolation device 100 shown in Figure 2 is that the bezel 106 has holes other than the through holes for the screws 108. Hereinafter, explanations of configurations that are the same as or similar to those described above may be omitted.

[0044] 5, when the fastening part is a screw, the bezel 106 may have a discharge hole 134 on the bottom surface in addition to the through hole through which the screw shank 108-1 passes as the shank of the screw. The bezel 106 may also have a plurality of discharge holes 134. The discharge holes 134 are disposed between the through hole of the bezel 106 and the side wall. The discharge holes 134 may be provided so as to overlap with the second mesh spring 120-2.

[0045] FIG. 6 shows a top view of the bezel 106 shown in FIG. 5. As described above, the discharge hole 134 is disposed between the through hole 126 of the bezel 106 and the side wall, surrounding the through hole 126. However, it is preferable not to dispose the discharge hole 134 above the third mesh spring 120-3. Furthermore, if the bezel 106 has legs 132 on its bottom surface, the discharge hole 134 is disposed closer to the side wall of the bezel 106 than the position of the legs 132 on the bottom surface. With this arrangement, paint that has seeped into the bezel 106 during painting after installation of the vibration-damping device 100 can be discharged through the discharge hole 134. Furthermore, even if the discharged paint seeps into the gap between the bezel 106 and the sandwiching steel material 114 due to capillary action, the legs 132 can prevent the paint from seeping into the third mesh spring 120-3.

[0046] 6, the diameter of the discharge hole 134 can be designed to be smaller than the diameter of the through hole 126 of the bezel 106 or smaller than the diameter of the shank of the fastening component. Specifically, the diameter of the discharge hole 134 can be designed to be smaller than the diameter of the threaded shank 108-1. However, if the paint used in painting after installation of the vibration-damping device 100 has high viscosity, the discharge hole 134 should be large enough to allow the paint to be discharged.

[0047] In the vibration isolation device 100, a cover 104 and a bezel 106 are provided to cover the top and side surfaces of the first mesh spring 120-1 and the side surfaces of the second mesh spring 120-2. After the vibration isolation device 100 is installed, the vibration isolation device 100 and its surrounding area are painted, but the cover 104 and bezel 106 protect the first mesh spring 120-1 and the second mesh spring 120-2 from the paint, allowing the spring characteristics and function of the mesh springs to be maintained. Furthermore, because the first mesh spring 120-1 and the second mesh spring 120-2 are covered by the cover 104 and the bezel 106, the vibration isolation device 100 can be installed without touching the first mesh spring 120-1 and the second mesh spring 120-2, providing a vibration isolation device that can be installed safely.

[0048] Second Embodiment In this embodiment, the structure of an anti-vibration device 200 according to one embodiment of the present invention will be described. Explanations of configurations that are the same as or similar to those in the first embodiment may be omitted.

[0049] 1.Overall structure One difference between the vibration isolation device 200 and the vibration isolation device 100 of the first embodiment is that the former has a first cover 204-1, a second cover 204-2, a first bezel 206-1, and a second bezel 206-2. Specifically, as shown in Figures 7 and 8, the first cover 204-1, the second cover 204-2, the first bezel 206-1, and the second bezel 206-2 are provided between the first plate 202-1 and the second plate 202-2. Furthermore, the first bezel 206-1 is disposed on the first plate 202-1, the first cover 204-1 is disposed on the first bezel 206-1, the second bezel 206-2 is disposed on the first cover 204-1, and the second cover 204-2 is disposed on the second bezel 206-2.

[0050] Furthermore, the width of the first bezel 206-1 is greater than the width of the first cover 204-1, and the width of the second bezel 206-2 is smaller than the width of the second cover 204-2.

[0051] 2.Cross-sectional structure 2-1. Cross-sectional structure-1 FIG. 8 shows a schematic side view and cross-sectional view of the vibration isolation device 200 shown in FIG.

[0052] 8, the first bezel 206-1 is disposed between the first plate 202-1 and the first cover 204-1, and the second cover 204-2 is disposed between the second plate 202-2 and the second bezel 206-2. The first bezel 206-1 and the first cover 204-1 are disposed so as to sandwich the first mesh spring 220-1, and the second bezel 206-2 and the second cover 204-2 are disposed so as to sandwich the second mesh spring.

[0053] Furthermore, the first cover 204-1 is sized to fit within the first bezel 206-1 and is disposed to fit within the first bezel 206-1. Specifically, the inner width W4 of the first bezel 206-1 is larger than the outer width W5 of the first cover 204-1, as shown in FIG. 8. The opposite relationship applies to the second bezel 206-2 and the second cover 204-2. In other words, the second bezel 206-2 is sized to fit within the second cover 204-2 and is disposed to fit within the second cover 204-2. Specifically, as shown in FIG. 8, the outer width of the second bezel 206-2 is smaller than the inner width of the second cover 204-2. Due to this width relationship, when the vibration-damping device 200 is subjected to vertical vibrations, the first cover 204-1 and the first bezel 206-1, and the second cover 204-2 and the second bezel 206-2 do not collide with each other, and the spring function of the first mesh spring 220-1 and the second mesh spring 220-2 is not impaired.

[0054] Furthermore, even if the first mesh spring 220-1 and the second mesh spring 220-2 are compressed by fastening when installing the vibration-damping device 200, the first cover 204-1 and the first bezel 206-1, and the second cover 204-2 and the second bezel 206-2 will not collide with each other, thereby avoiding damage.

[0055] As described above, the first cover 204-1 and the first bezel 206-1 are disposed to sandwich the first mesh spring 220-1. The sum of the depth D2 of the first cover 204-1 and the depth D3 of the first bezel 206-1 is equal to or greater than the thickness T4 of the first mesh spring 220-1. In other words, the thickness T4 of the first mesh spring 220-1 is equal to or less than the sum of the depth D2 of the first cover 204-1 and the depth D3 of the first bezel 206-1. However, if the thickness T4 of the first mesh spring 220-1 is equal to or greater than the sum of the depth D2 of the first cover 204-1 and the depth D3 of the first bezel 206-1 before the vibration isolation device 200 is installed, the thickness T4 of the first mesh spring 220-1 can be equal to or greater than the sum of the depth D2 of the first cover 204-1 and the depth D3 of the first bezel 206-1.

[0056] Similarly, although not shown, the thickness of the second mesh spring 220-2 can be set to be equal to or greater than the sum of the depths of the second cover 204-2 and the second bezel 206-2 if the thickness T1 of the second mesh spring 220-2 is equal to or greater than the sum of the depths of the second cover 204-2 and the second bezel 206-2 before installation of the vibration isolation device 200. By providing the first mesh spring 220-1 and the second mesh spring 220-2 in this manner, when the vibration isolation device 200 is subjected to lateral vibrations, the first cover 204-1 and the first bezel 206-1, and the second cover 204-2 and the second bezel 206-2 will not collide with each other, and damage can be avoided.

[0057] 2-2. Cross-sectional structure-2 Figure 9 shows a side view and a cross-sectional view of the vibration isolation device 200 shown in Figure 7. What differs from the vibration isolation device 200 shown in Figure 8 is that the second bezel 206-2 has legs 232. Below, explanations of configurations that are the same as or similar to those described using Figure 8 may be omitted.

[0058] As shown in Fig. 9, the legs 232 are provided on the bottom surface of the second bezel 206-2. The legs 232 may be arranged on the first cover 204-1 depending on the installation direction of the vibration isolation device 200. For example, if the vibration isolation device 200 is installed so that the head of the screw 208 is arranged downward in Fig. 8 and the first nut 210-1 is arranged upward, the legs 232 are arranged on the first cover 204-1. The position of the legs 232 in this case is the same as when the first bezel 206-1 has the legs 232.

[0059] The legs 232 are arranged on the first cover 204-1 depending on the installation direction of the vibration isolation device 200. For example, when the vibration isolation device 200 is installed so that the head of the screw 208 is arranged downward in Fig. 9 and the first nut 210-1 is arranged upward, the legs 232 are arranged on the first cover 204-1. The position of the legs 232 in this case is the same as when the first bezel 206-1 has the legs 232.

[0060] In the vibration isolation device 200, the first mesh spring 220-1 is sandwiched between and covered by the first cover 204-1 and the first bezel 206-1, thereby reducing the exposure of the first mesh spring 220-1. Furthermore, the second mesh spring 220-2 is sandwiched between and covered by the second cover 204-2 and the second bezel 206-2, thereby reducing the exposure of the second mesh spring 220-2. Therefore, by applying this embodiment, even if the vibration isolation device 200 is painted, the paint can be prevented from penetrating the first mesh spring 220-1 or the second mesh spring 220-2. This allows the mesh springs of the vibration isolation device 200 to maintain their spring function, thereby providing a vibration isolation device that exhibits its inherent vibration-damping effect. Furthermore, by applying this embodiment, the mesh springs are less exposed, providing a vibration isolation device that can be safely installed. Furthermore, by applying this embodiment, a vibration isolation device that is easy to handle is provided.

[0061] Third Embodiment In this embodiment, the structure of an anti-vibration device 300 according to one embodiment of the present invention will be described. Explanations of configurations that are the same as or similar to those of the first and second embodiments may be omitted.

[0062] 1.Overall structure One difference between the vibration isolation device 300 of the second embodiment and the vibration isolation device 300 of the second embodiment is that the vibration isolation device 300 does not have a first plate and a second plate. Specifically, as shown in FIGS. 10 and 11 , the vibration isolation device 300 does not have the first plate 102-1 and the second plate 102-2 shown in FIGS. 1 and 2 between the head of the screw 308 and the nut 210. Therefore, a washer 312 is disposed between the first nut 310-1 and the first bezel 306-1, and the first bezel 306-1 can contact the washer 312 before installation of the vibration isolation device 300, and after installation of the vibration isolation device 300, the first bezel 306-1 contacts the main body 316 on which the vibration isolation device 300 is installed. In addition, a washer 312 is disposed between the head of the screw 308 and the second cover 304-2, and the second cover contacts the washer 312.

[0063] 2.Cross-sectional structure FIG. 11 shows a side view and a cross-sectional view of the vibration isolation device 300 shown in FIG.

[0064] As shown in FIG. 11 , there is no first plate between the first bezel 306-1 and the washer 312, and there is no second plate between the second cover 304-2 and the washer 312. Because the first and second plates are not provided in the vibration isolation device 300, a more rigid material can be used for the first bezel 306-1 and the second cover 304-2, allowing the first bezel 306-1 and the second cover 304-2 to serve as the first and second plates, respectively. The primary role of the first and second plates is to suppress deformation of the first bezel 306-1 and the second cover 304-2 due to pressure exerted when the vibration isolation device 300 is subjected to vibration, for example. By not providing the first and second plates in the vibration isolation device 300, the configuration of the vibration isolation device 300 is simplified, and the installation work for the vibration isolation device 300 can also be simplified.

[0065] 3. Variations 3-1. Variation 1 Figure 12 shows a side view and a cross-sectional view of a modified example of the vibration isolation device 300 shown in Figure 10. What differs from the vibration isolation device 300 shown in Figure 11 is that the thickness of the first bezel 306-1 and / or the second cover 304-2 is greater than the thickness of the second bezel 306-2 and the first cover 304-1, respectively. Below, explanations of configurations that are the same as or similar to those in Figure 11 may be omitted.

[0066] As described above, the vibration isolation device 300 does not include the first plate 102-1 and the second plate 102-2 shown in FIGS. 1 and 2. When the vibration isolation device 300 is subjected to vibration, the first bezel 306-1 and the second cover 304-2, which sandwich the first mesh spring 320-1 and the second mesh spring 320-2, receive pressure due to the vibration. Therefore, by increasing the thickness of the first bezel 306-1 and the second cover 304-2, deformation due to the pressure can be suppressed. While FIG. 12 shows an example in which the thicknesses of the first bezel 306-1 and the second cover 304-2 are increased, the thicknesses of the first cover 304-1 and the second bezel 306-2 can also be increased.

[0067] 3-2. Variation 2 Figure 13 is a perspective view showing a modified example of the vibration isolation device 300 shown in Figure 10. The difference from the vibration isolation device 300 shown in Figure 10 is that the first bezel 306-1 and the second cover 304-2 have multiple ribs 336 and ribs 338, respectively. Below, explanations of configurations that are the same as or similar to those in Figure 12 may be omitted.

[0068] As shown in FIG. 13, the first bezel 306-1 has a plurality of ribs 336. The plurality of ribs 336 are arranged on the sidewall of the first bezel 306-1. The plurality of ribs 336 are also arranged diagonally across the first bezel 306-1. By arranging the plurality of ribs 336 in this manner, the bent portion of the first bezel 306-1 can be reinforced. Here, the bent portion of the first bezel 306-1 refers to the corner between the bottom surface and the sidewall of the first bezel 306-1.

[0069] Similarly, second cover 304-2 also has a plurality of ribs 338. The plurality of ribs 338 are provided on the sidewall and top surface of second cover 304-2 so as to cover the bent portion. In this case, the top surface is the surface facing washer 312. The plurality of ribs 338 have shapes that extend radially from screw 308. The plurality of ribs 338 are also arranged so as to be diagonally positioned with the head of screw 308 in between. By arranging the plurality of ribs 338 in this manner, the pressure due to the vibrations described above can be uniformly received by the plurality of ribs, and the first bezel 306-1 and / or the bent portion of first bezel 306-1 can be reinforced.

[0070] Next, a side view and a cross-sectional view of the vibration isolation device 300 shown in FIG. 13 are shown in FIG.

[0071] As shown in FIG. 14 , the rib 336 is disposed on the side wall of the first bezel 306-1. The rib 336 can have a structure that widens downward in the Z direction, with the head of the screw 308 facing upward. This structure allows the rib 336 to further reinforce the bottom surface of the first bezel 306-1 facing the main body 316. The surface of the rib 336 facing the main body 316 is flush with the bottom surface of the first bezel 306-1, thereby further reinforcing the first bezel 306-1. Furthermore, the height of the rib 336 in the Z direction is preferably equal to or less than the height of the side wall of the first bezel 306-1. By setting the rib 336 to such a height, damage to the rib 336 due to contact with the first cover 304-1 can be prevented when the first cover 304-1 and the first bezel 306-1 move in the Y direction due to vibrations received by the vibration isolation device 300.

[0072] As described above, the ribs 338 of the second cover 304-2 are provided to cover the bent portions of the second cover 304-2. Specifically, as shown in FIG. 14, the ribs 338 are arranged to cover the bent portions of the second cover 304-2. The ribs 338 located on the side walls of the second cover 304-2 can be of a length that aligns with the edges of the side walls of the second cover 304-2 in the Z direction, or can be shorter than that. By arranging the ribs 338 in this manner and of this length, when the second cover 304-2 and the second bezel 306-2 move in the Y direction, the ribs 338 can prevent damage due to contact with the second bezel 306-2 and reinforce the bent portions of the second bezel 306-2. Furthermore, the surface (top surface) of the second cover 304-2 that faces or contacts the washer 312 is arranged away from the screws 308 and the washer 312. By positioning the rib 338 away from the screw 308, the vibration isolation device 300 can be installed smoothly without contact with the screw 308 or washer 312.

[0073] 3-3. Variation 3 Figure 15 shows a side view and a cross-sectional view of a modified example of the vibration isolation device 300 shown in Figure 14. What differs from the vibration isolation device 300 shown in Figure 14 is that it has a plurality of ribs 338-1 and ribs 338-2 on the upper surface of the second cover 304-2. Below, explanations of configurations that are the same as or similar to those in Figure 14 may be omitted.

[0074] As shown in FIG. 15 , ribs 338-1 and 338-2 are disposed on the surface of second cover 304-2 opposite the surface facing second mesh spring 320-2. Rib 338-1 is disposed on the second cover 304-2 outside screw 308, and rib 338-2 is disposed further outside rib 338-1. Rib 338-2 is disposed closer to screw 308 than the corner (bent portion) formed by the top surface and side wall of second cover 304-2. Ribs 338-1 and 338-2 extend in the Z direction opposite the direction in which the side wall of second cover 304-2 extends. The height of ribs 338-1 and 338-2 in the Z direction can be smaller than the height of the head of screw 308 in the Z direction. By setting the height in this manner, screw 308 can be smoothly fastened when installing the vibration isolation device 300.

[0075] FIG. 16 shows a top view of the vibration isolation device 300 shown in FIG. 15. As described above, the ribs 338-1 and 338-2 are provided on the second cover 304-2 and are arranged to surround the screw 308. The ribs 338-1 and 338-2 have a circular shape centered on the screw 308. The rib 338-1 is arranged inside the rib 338-2, and the rib 338-2 is arranged between the rib 338-1 and the corner of the second cover 304-2. Although FIG. 16 shows an example of two ribs, rib 338-1 and rib 338-2, the number of ribs is not limited to this and may be three or more.

[0076] 3-4. Variation 4 Figure 17 shows a side view and a cross-sectional view of a modified example of the vibration isolation device 300 shown in Figure 14. What differs from the vibration isolation device 300 shown in Figure 14 is that it is provided by combining rib 338-1 with rib 338. Hereinafter, explanations of configurations that are the same as or similar to those in Figure 14 may be omitted.

[0077] 17, the rib 338-1 is disposed between the rib 338 and the screw 308. The rib 338 is provided so as to cover the bent portion of the second cover 304-2.

[0078] Fig. 18 shows a top view of the vibration isolation device 300 shown in Fig. 17. Rib 338-1 is provided to surround screw 308, and multiple ribs 338 extend radially from rib 338-1. The rib 338 and the multiple ribs 338 are connected to each other. By providing a combination of rib 338 and multiple ribs 338 on the top surface and the bending portion in this manner, various deformations such as warping and bending of second cover 304-2 can be prevented.

[0079] 3-5. Variation 5 Figure 19 shows a side view and a cross-sectional view of a modified example of the vibration isolation device 300 shown in Figure 14. The difference from the vibration isolation device 300 shown in Figure 14 is that the second cover 304-2 has multiple grooves 340. Below, explanations of configurations that are the same as or similar to those in Figure 14 may be omitted.

[0080] As shown in FIG. 19, the second cover 304-2 has multiple grooves 340 on its top surface. The grooves 340 are provided between the through holes of the screws 308 and the sidewall, and are not provided in the portion of the top surface that contacts the washer 312. The grooves 340 may have a triangular recess in a cross-sectional view of the second cover 304-2 and a triangular protrusion on the opposite surface. While FIG. 19 shows an example of a triangular groove 340, the shape is not limited to a triangle. In this way, providing multiple grooves 340 on the second cover 304-2 increases the bending strength and suppresses deformation due to pressure.

[0081] In the vibration isolation device 300, the first bezel 306-1 and the second cover 304-2 are provided with ribs 336 and 338, respectively, thereby ensuring the strength of the first bezel 306-1 and the second cover 304-2. Furthermore, by increasing the thickness of the first bezel 306-1 and the second cover 304-2, the strength can be ensured. Furthermore, by forming grooves 340 or the like on the second cover 304-2, bending resistance can be ensured. Thus, by applying this embodiment, the vibration isolation device 300 can suppress deformation of the first bezel 306-1 and the second cover 304-2 without having plates between the first bezel 306-1 and the nut 310 and between the second cover 304-2 and the head of the screw 308. Furthermore, the configuration of the vibration isolation device 300 is simplified, simplifying the manufacturing process and installation of the vibration isolation device 300.

[0082] <Fourth embodiment> In this embodiment, the structure of an anti-vibration device 400 according to one embodiment of the present invention will be described. Descriptions of configurations that are the same as or similar to those in the first, second, and third embodiments may be omitted.

[0083] 1.Basic structure One of the differences between the vibration isolation device 400 and the vibration isolation device 100 of the first embodiment is that the vibration isolation device 400 does not have a center stud. Also, another difference between the vibration isolation device 400 and the vibration isolation device 100 of the first embodiment is that the vibration isolation device 400 does not have a third mesh spring.

[0084] Specifically, as shown in FIG. 20 , the vibration isolation device 400 does not have a center stud between the first mesh spring 420-1 and the threaded shaft portion 408-1, and between the second mesh spring 420-2 and the threaded shaft portion 408-1. Furthermore, the vibration isolation device 400 does not have a center stud between the first plate 402-1 and the second plate 402-2. The first mesh spring 420-1 and the threaded shaft portion 408-1 may contact each other. Therefore, the widths of the cover 404 and the bezel 406 of the vibration isolation device 400 can be smaller than the widths of the cover 404 and the bezel 406 of the vibration isolation device 100. Furthermore, the widths of the first plate 402-1 and the second plate 402-2 of the vibration isolation device 400 can be smaller than the widths of the first plate 102-1 and the second plate 102-2 of the vibration isolation device 100.

[0085] 20, the vibration isolation device 400 does not have a third mesh spring between the cover 404 and the bezel 406. The vibration isolation device 400 does not have a third mesh spring surrounding the screw shaft portion 408-1 between the cover 404 and the bezel 406. Furthermore, the cover 404 and the bezel 406 can come into contact with the steel material 414 after the vibration isolation device 400 is installed. Therefore, the steel material 414 does not need to have a space in which the third mesh spring is installed, and it is sufficient to provide a space large enough for the screw shaft portion 408-1 to pass through.

[0086] 2. Variations 2-1. Variation 1 Figure 21 shows a modified example of the vibration isolation device 400 shown in Figure 20. The vibration isolation device 400 shown in Figure 21 differs from the vibration isolation device 400 shown in Figure 20 in that the former has a first cover 404-1, a second cover 404-2, a first bezel 406-1, and a second bezel 406-2 instead of the cover 404 and the bezel 406. Specifically, as shown in Figure 21, a first cover 404-1, a second cover 404-2, a first bezel 406-1, and a second bezel 406-2 are provided between a first plate 402-1 and a second plate 402-2. Furthermore, a first bezel 406-1 is disposed on the first plate 402-1, a first cover 404-1 is disposed on the first bezel 406-1, a second bezel 406-2 is disposed on the first cover 404-1, and a second cover 404-2 is disposed on the second bezel 406-2.

[0087] 2-2. Variation 2 Figure 22 shows a modified example of the vibration isolation device 400 shown in Figure 20. The difference from the vibration isolation device 400 shown in Figure 20 is that it has a third mesh spring. Below, explanations of configurations that are the same as or similar to those in Figure 20 may be omitted.

[0088] As shown in FIG. 22, the third mesh spring 420-3 is disposed between the cover 404 and the bezel 406.

[0089] The vibration isolation device 400 does not have a center stud, which simplifies the configuration and reduces the size of the vibration isolation device 400. Therefore, by applying this embodiment, it is possible to simplify the installation work of the vibration isolation device 400 and save space in the installation location.

[0090] Even if there are other effects and advantages different from those brought about by the aspects of each of the above-mentioned embodiments, those that are clear from the description in this specification or that can be easily predicted by a person skilled in the art are naturally understood to be brought about by the present invention. [Explanation of symbols]

[0091] 100: vibration isolation device, 102-1: first plate, 102-11: first surface, 102-2: second plate, 102-21: first surface, 104: cover, 106: bezel, 106-11: end, 108: screw, 108-1: screw shaft, 110-1: first nut, 110-2: second nut, 112: washer, 114: steel material, 116: main body, first mesh spring: 120-1, second mesh mesh spring: 120-2, third mesh spring: 120-3, 126: through hole, 128: center stud, 130: space, 132: leg, 134: discharge hole, 200: vibration isolator, 202-1: first plate, 202-2: second plate, 204-1: first cover, 204-2: second cover, 206-1: first bezel, 206-2: second bezel, first mesh spring: 220-1, Second mesh spring: 220-2, third mesh spring: 220-3, 228: center stud, 232: leg, 300: vibration isolator, 304-1: first cover, 304-2: second cover, 306-1: first bezel, 306-2: second bezel, 308: screw, 310: nut, 312: washer, 316: main body, 336: rib, 338: rib, 338-1: rib, 338-2: rib, 340: Groove, 400: Anti-vibration device, 402-1: First plate, 402-2: Second plate, 404: Cover, 404-1: First cover, 404-2: Second cover, 406: Bezel, 406-1: First bezel, 406-2: Second bezel, 408-1: Screw shaft, 414: Steel material, 420-1: First mesh spring, 420-2: Second mesh spring, 420-3: Third mesh spring

Claims

1. A first plate; a first mesh spring on the first plate; a cover on the first mesh spring; a bezel over the cover; a second mesh spring above the bezel; a second plate above the second mesh spring; a fastening component that fastens the first plate, the cover, the bezel, and the second plate together; The depth of the cover is equal to or greater than the thickness of the first mesh spring. Anti-vibration device.

2. A first plate; a first mesh spring on the first plate; a cover on the first mesh spring; a bezel over the cover; a second mesh spring above the bezel; a second plate above the second mesh spring; a fastening component that fastens the first plate, the cover, the bezel, and the second plate together; The depth of the bezel is equal to or greater than the thickness of the second mesh spring. Anti-vibration device.

3. The inner width of the bezel is greater than the width of the first plate. The vibration isolation device according to claim 1 or 2.

4. a third mesh spring between the bezel and the cover; The bezel surrounds the shaft portion of the fastening component and the third mesh spring and has legs extending downward from a bottom surface. The vibration isolation device according to claim 1 or 2.

5. The inner width of the legs is smaller than the inner width of the bezel. The vibration isolation device according to claim 4.

6. The bezel has a drain hole on a bottom surface thereof, The diameter of the discharge hole is smaller than the diameter of the shank of the fastener. The vibration isolation device according to claim 1 or 2.

7. The depth of the cover is equal to or less than the thickness of the first mesh spring. The vibration isolation device according to claim 2 .

8. The depth of the bezel is equal to or less than the thickness of the second mesh spring. The vibration isolation device according to claim 1 .

9. A first bezel; a first mesh spring on the first bezel; a first cover over the first mesh spring; a second bezel on the first cover; a second mesh spring on the second bezel; a second cover on the second mesh spring; a fastening part for fastening the first bezel, the first cover, the second bezel, and the second cover together; an inner width of the first bezel is greater than an outer width of the first cover; The thickness of the first mesh spring is equal to or greater than the sum of the depth of the first bezel and the depth of the first cover. Anti-vibration device.

10. A first bezel; a first mesh spring on the first bezel; a first cover over the first mesh spring; a second bezel on the first cover; a second mesh spring on the second bezel; a second cover on the second mesh spring; a fastening part for fastening the first bezel, the first cover, the second bezel, and the second cover together; an inner width of the first bezel is greater than an outer width of the first cover; The thickness of the second mesh spring is equal to or greater than the sum of the depth of the second bezel and the depth of the second cover. Anti-vibration device.

11. A first bezel; a first mesh spring on the first bezel; a first cover over the first mesh spring; a second bezel on the first cover; a second mesh spring on the second bezel; a second cover on the second mesh spring; A first plate; A second plate; a fastening component for fastening together the first bezel, the first cover, the second bezel, the second cover, the first plate, and the second plate; an inner width of the first bezel is greater than an outer width of the first cover; the first bezel is disposed on the first plate; The second cover is disposed below the second plate. Anti-vibration device.

12. The first bezel has a rib on a side wall. The vibration isolation device according to any one of claims 9 to 11.

13. a thickness of the first mesh spring that is equal to or less than the sum of the depth of the first bezel and the depth of the first cover; 12. The vibration isolation device according to claim 10 or 11.

14. The thickness of the first mesh spring is equal to or greater than the sum of the depth of the first bezel and the depth of the first cover. The vibration isolation device according to claim 11.

15. The thickness of the second mesh spring is equal to or greater than the sum of the depth of the second bezel and the depth of the second cover. The vibration isolation device according to claim 11.

16. The thickness of the second mesh spring is equal to or less than the sum of the depth of the second bezel and the depth of the second cover.

12. The vibration isolation device according to claim 9 or 11.

17. a third mesh spring between the first cover and the second bezel; the second bezel surrounds the shaft portion of the fastening component and the second mesh spring and has legs extending downward from a bottom surface thereof; The vibration isolation device according to any one of claims 9 to 11.

18. The inner width of the legs is smaller than the inner width of the second bezel.

18. An anti-vibration device according to claim 17.

19. the second bezel has a drain hole on its bottom surface; The diameter of the discharge hole is smaller than the diameter of the shank of the fastener. The vibration isolation device according to any one of claims 9 to 11.

Images