Vibration control structure

Abstract

To provide a vibration control structure which achieves improvement of vibration control performance.SOLUTION: A vibration control structure 1 is formed by installing a vibration generator K on an installation surface S through a vibration control frame 10. The vibration control frame includes: a vibration control frame main part 11 having a lower frame body 2 installed on the installation surface, an upper frame body 3 which is provided above the lower frame body and in which the vibration generator is installed, and a connection member 4 which connects the upper frame body with the lower frame body; and a vibration control material 12 which is provided at the vibration control frame main part and absorbs vibration from the vibration generator. The upper frame body is provided in a frame-like shape and includes an upper corner part 31, and a pair of upper frame materials 32A, 33A which are provided extending from the upper corner part in directions intersecting with each other. The vibration generator, the upper corner part, and each upper frame material are fastened to each other by inserting a first fastening member 6A into upper material communication holes 30A (30B) which are provided at the vibration generator, the upper corner part, and each upper frame material and communicate with each other.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a vibration-isolating structure. [Background technology]

[0002] BACKGROUND ART Conventionally, vibration-generating equipment such as air conditioners has generally been installed on an installation surface via a vibration-isolating stand (see, for example, Patent Document 1).

[0003] The vibration-isolation stand disclosed in Patent Document 1 is configured with a lower frame that is installed on a foundation, an upper frame to which a vibration-generating device is attached, and a spring member that is arranged between the lower and upper frames. The lower and upper frames are each configured by connecting a pair of frame components at their corners. Each corner has a first connection portion that is connected to an end of one of the pair of frame components, and a second connection portion that is connected to an end of the other of the pair of frame components. The lower frame (upper frame) is assembled by fastening one frame component to the first connection portion of the corner, and fastening the other frame component to the second connection portion of the corner.

[0004] When fixing a vibration-generating device to such a conventional vibration-isolated stand, an L-shaped fixing member formed by bending a metal plate is used, and a portion including one end of the L-shaped fixing member is overlapped with the bottom surface of the vibration-generating device and fastened with a bolt, and a portion including the other end of the L-shaped fixing member is overlapped with the side surface of the frame component that forms the upper frame and fastened with a bolt. In this way, the vibration-generating device is fixed to the conventional vibration-isolated stand. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2005-127359 Summary of the Invention [Problem to be solved by the invention]

[0006] However, in the conventional vibration-isolating stand disclosed in Patent Document 1, the vibration-generating device is fixed to the side of the frame component that constitutes the upper frame via an L-shaped fixing member. Therefore, vibrations from the vibration-generating device can loosen the fastening between one frame component that constitutes the upper frame, the corner, and the other frame component, making it difficult to sufficiently absorb the vibrations from the vibration-generating device.

[0007] An object of the present invention is to provide a vibration-isolating structure with improved vibration-isolating properties. [Means for solving the problem]

[0008] The above object can be achieved by the present invention described below. In other words, the present invention is a vibration-damping structure configured by installing a vibration-generating device on an installation surface via a vibration-damping mount, wherein the vibration-damping mount comprises a vibration-damping mount main body having a lower frame body installed on the installation surface, an upper frame body provided above the lower frame body and on which the vibration-generating device is installed, and a connecting member connecting the upper frame body and the lower frame body, and vibration-damping material provided on the vibration-damping mount main body to absorb vibrations from the vibration-generating device, wherein the upper frame body is formed in a frame shape including an upper corner portion and a pair of upper frame members provided extending in directions intersecting each other from the upper corner portion, and the vibration-generating device, the upper corner portion and each upper frame member are fastened to each other by inserting a first fastening member into upper member connecting holes provided in the vibration-generating device, the upper corner portion and each upper frame member that communicate with each other, thereby configuring this vibration-damping structure. [Effects of the Invention]

[0009] According to the present invention, it is possible to improve vibration isolation. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a side view showing an anti-vibration structure according to an embodiment of the present invention. [Figure 2]1A and 1B are diagrams showing a vibration-isolating frame that constitutes the vibration-isolating structure, in which (A) is a plan view, (B) is a side view seen from the front, and (C) is a side view seen from the right. [Figure 3] FIG. 3 is a perspective view showing a corner portion of the vibration-isolating stand. [Figure 4] FIG. 3 is an exploded perspective view showing a corner portion of the vibration-isolating frame. DETAILED DESCRIPTION OF THE INVENTION

[0011] A vibration-isolating structure 1 according to one embodiment of the present invention will be described below with reference to Figures 1 to 4. Figure 1 is a side view showing a vibration-isolating structure 1 according to one embodiment of the present invention. Figure 2 shows a vibration-isolating pedestal 10 constituting the vibration-isolating structure 1, with (A) being a plan view, (B) being a side view seen from the front, and (C) being a side view seen from the right (lateral direction X). Figure 3 is a perspective view showing a corner of the vibration-isolating pedestal 10. Figure 4 is an exploded perspective view showing the corner of the vibration-isolating pedestal 10.

[0012] As shown in FIG. 1, the vibration-isolating structure 1 is a structure for installing an outdoor air conditioner K (sometimes referred to as vibration-generating equipment K) as a vibration-generating equipment on an installation surface S via a vibration-isolating stand 10. In this embodiment, arrows X, Y, and Z are directions that are perpendicular to each other. Arrows XY indicate the planar direction (horizontal direction) in which the installation surface S extends, and arrow Z indicates the direction in which the lower frame body 2 and the upper frame body 3 face each other. Below, arrow Z may be referred to as the "up-down direction Z," arrow Y may be referred to as the "longitudinal direction Y," and arrow X may be referred to as the "lateral direction X."

[0013] As shown in Figures 1 and 2, the vibration-isolating structure 1 is a structure configured by installing a vibration-generating device K on an installation surface S via a vibration-isolating stand 10, and includes the vibration-generating device K, the vibration-isolating stand 10, and an installation stud bolt 5A (second fastening member, shown in Figure 1) erected on the installation surface S.

[0014] As shown in Figures 1 and 2, the vibration-isolating stand 10 comprises a vibration-isolating stand main body 11 which is configured to have a rectangular frame-shaped lower frame body 2 which is placed on an installation surface S, a rectangular frame-shaped upper frame body 3 on which a vibration-generating device K is placed, and a connecting member 4 which connects the lower frame body 2 and the upper frame body 3, and a vibration-isolating material 12 which is provided on the vibration-isolating stand main body 11 and which absorbs vibrations from the vibration-generating device K by contracting in the vertical direction Z.

[0015] As shown in Fig. 2, the lower frame 2 has four lower corner portions 21 (only two are shown in Fig. 2), a pair of lower vertical pipe members 22A (only one is shown in Fig. 2), and a pair of lower horizontal pipe members 23A (only one is shown in Fig. 2). Fig. 3 shows the lower corner portion 21A located at the lower right of the vibration-isolating rack 10 shown in Fig. 2, one 22A of the pair of lower vertical pipe members 22A, 22B, and one 23A of the pair of lower horizontal pipe members 23A, 23B. The lower vertical pipe member 22A and the lower horizontal pipe member 23A are formed to extend in directions that intersect with each other. The lower vertical pipe member 22A and the lower horizontal pipe member 23A constitute the "pair of lower frame members" in the claims.

[0016] The four lower corner portions 21A, 21 are provided at the four corners of the lower frame 2. Each lower corner portion 21A, 21 is a casting made of aluminum alloy, or formed by die-casting (aluminum die-casting) the aluminum alloy. As shown in FIG. 3 , the lower corner portion 21A integrally includes a lower corner portion main body 24, a lower first connecting portion 25 having a rectangular cylindrical shape that protrudes from the lower corner portion main body 24 and extends in the vertical direction Y, and a lower second connecting portion 26 having a rectangular cylindrical shape that protrudes from the lower corner portion main body 24 and extends in the horizontal direction X.

[0017] 3 and 4, lower corner body 24 includes a rectangular plate-shaped lower base plate portion 241, a lower first wall 242 extending downward from one edge of lower base plate portion 241, and a lower second wall 243 extending downward from another edge adjacent to the first edge of lower base plate portion 241. Lower corner bolt hole 2A is provided in the center of lower base plate portion 241, through which a hexagon bolt 4A of connecting member 4, which will be described later, is inserted.

[0018] As shown in FIG. 4, the lower first connection portion 25 is fixed to the lower first wall 242, has a rectangular cylindrical shape, and extends in the vertical direction Y. The lower first connection portion 25 is configured to be inserted into a lower vertical pipe member 22A (described later). The lower first connection portion 25 also has a pair of lower first bolt holes 2B and a pair of lower first screw holes 2C. The pair of lower first bolt holes 2B are provided in a pair of lower first opposing walls 25A and 25B that face each other in the vertical direction Z at the lower first connection portion 25, respectively, and are configured to receive an installation stud bolt 5A erected on the installation surface S. The pair of lower first screw holes 2C are provided side by side in the vertical direction Z in a lower first side wall 25C that is continuous with the pair of lower first opposing walls 25A and 25B. The pair of lower first screw holes 2C, 2C are configured so that screws (not shown) can be inserted therethrough.

[0019] As shown in FIG. 4 , the lower second connection portion 26 is fixed to the lower second wall 243, has a rectangular cylindrical shape, and extends in the horizontal direction X. The lower second connection portion 26 is configured to be inserted into a lower horizontal pipe member 23A (described later). The lower second connection portion 26 also has a pair of lower second bolt holes 2D, 2D and a pair of lower second screw holes 2E, 2E. The pair of lower second bolt holes 2D, 2D are provided in each of a pair of lower second opposing walls 26A, 26B opposing each other in the vertical direction Z, and are configured to receive an installation stud bolt 5A erected on the installation surface S. The pair of lower second screw holes 2E, 2E are provided side by side in the vertical direction Z in a lower second side wall 26C that is continuous with the pair of lower second opposing walls 26A, 26B. The pair of lower second screw holes 2E, 2E are configured so that screws (not shown) can be inserted therethrough.

[0020] As shown in Fig. 4, the lower vertical pipe member 22A is formed in a square tube shape that can be extrapolated to the lower first connection portion 25 of the lower corner portion 21A. In this lower vertical pipe member 22A, a lower first bolt communication hole 2F is formed at a position communicating with the lower first bolt hole 2B formed in the lower first connection portion 25 when the lower vertical pipe member 22A is extrapolated to the lower first connection portion 25 of the lower corner portion 21A, and a pair of lower first screw communication holes 2G, 2G is formed at a position communicating with the pair of lower first screw holes 2C, 2C formed in the lower first connection portion 25. The lower first bolt hole 2B and the lower first bolt communication hole 2F constitute the "lower member communication hole 20A" in the claims.

[0021] As shown in Fig. 4, the lower horizontal pipe member 23A is formed in a square tube shape that can be fitted around the lower second connection portion 26 of the lower corner portion 21A. When the lower horizontal pipe member 23A is fitted around the lower second connection portion 26 of the lower corner portion 21A, a lower second bolt communication hole 2H is formed in the lower horizontal pipe member 23A at a position that communicates with the lower second bolt hole 2D formed in the lower second connection portion 26, and a pair of lower second screw communication holes 2I, 2I are formed at positions that communicate with the pair of lower second screw holes 2E, 2E formed in the lower second connection portion 26. The lower second bolt hole 2D and the lower second bolt communication hole 2H constitute the "lower member communication hole 20B" in the claims.

[0022] When assembling the lower frame 2 by fixing such lower corner portions 21A, lower vertical pipe members 22A, and lower horizontal pipe members 23A, the lower vertical pipe member 22A is extrapolated to the lower first connection portion 25 provided in the lower corner portion 21A, as shown in Figures 3 and 4. This allows the lower first bolt hole 2B provided in the lower first connection portion 25 to communicate with the lower first bolt communicating hole 2F provided in the lower vertical pipe member 22A, and also allows the pair of lower first screw holes 2C, 2C provided in the lower first connection portion 25 to communicate with the pair of lower first screw communicating holes 2G, 2G provided in the lower vertical pipe member 22A. This forms a lower member communicating hole 20A in which the lower first bolt hole 2B and the lower first bolt communicating hole 2F are connected. In this state, screws are inserted into the lower first screw holes 2C and the lower first screw communicating holes 2G to fix the lower vertical pipe material 22A to the lower first connecting portion 25, that is, the lower corner portion main body 24.

[0023] Similarly, the lower horizontal pipe member 23A is extrapolated to the lower second connection portion 26 provided in the lower corner portion 21A. This forms the lower member communication hole 20B, which communicates with the lower second bolt hole 2D and the lower second bolt communication hole 2H. After this, screws are inserted into each lower second screw hole 2E and each lower second screw communication hole 2I to fix the lower horizontal pipe member 23A to the lower second connection portion 26, i.e., the lower corner portion main body 24. This fixes the lower corner portion 21A, the lower vertical pipe member 22A, and the lower horizontal pipe member 23A. This process is repeated four times to assemble the lower frame body 2.

[0024] As shown in Fig. 2, the upper frame 3 includes four upper corners 31, a pair of upper vertical pipe members 32A and 32B, and a pair of upper horizontal pipe members 33A and 33B. Fig. 3 shows the upper corner 31A (31) located at the lower right of the vibration-isolating rack 10 shown in Fig. 2, one 32A of the pair of upper vertical pipe members 32A and 32B, and one 33A of the pair of upper horizontal pipe members 33A and 33B. The upper vertical pipe member 32A and the upper horizontal pipe member 33A are formed to extend in directions that intersect with each other. The upper vertical pipe member 32A and the upper horizontal pipe member 33A constitute a "pair of upper frame members" in the claims.

[0025] As shown in FIG. 2, the four upper corner portions 31A, 31 are provided at the four corners of the upper frame 3. Each upper corner portion 31A, 31 is a casting made of aluminum alloy, or formed by die-casting (aluminum die-casting) an aluminum alloy. As shown in FIG. 3, the upper corner portion 31A integrally includes an upper corner portion main body 34, a rectangular tubular upper first connecting portion 35 that protrudes from the upper corner portion main body 34 and extends in the vertical direction Y, and a rectangular tubular upper second connecting portion 36 that protrudes from the upper corner portion main body 34 and extends in the horizontal direction X.

[0026] 3 and 4, the upper corner body 34 is formed in a flattened rectangular shape. The upper corner body 34 is provided with a bolt insertion portion 340 that penetrates the upper corner body 34 in the vertical direction Z. The bolt insertion portion 340 has an upper corner bolt hole 3A (shown in FIG. 4) through which a bolt shank 40B of a hexagonal bolt 4A constituting a connecting member 4 (described later) is inserted, and is configured with a mounting surface 341 (shown in FIG. 4) on which the bolt head 40A is placed, and a cylindrical peripheral surface 342 that is provided above the mounting surface 341 and stands upright to accommodate the bolt head 40A.

[0027] As shown in FIG. 4, the upper first connection portion 35 is fixed to the upper corner portion main body 34, has a rectangular cylindrical shape, and extends in the vertical direction Y. The upper first connection portion 35 is configured to be inserted into an upper vertical pipe member 32A (32B) described later. The upper first connection portion 35 also has a pair of upper first bolt holes 3B, 3B and a pair of upper first screw holes 3C, 3C. The pair of upper first bolt holes 3B, 3B are provided in a pair of upper first opposing walls 35A, 35B facing each other in the vertical direction Z, respectively, and are configured to receive an equipment mounting bolt 6A (first fastening member, shown in FIG. 1). The pair of upper first screw holes 3C, 3C are provided side by side in the vertical direction Z in an upper first side wall 35C that is continuous with the pair of upper first opposing walls 35A, 35B. The pair of upper first screw holes 3C, 3C are configured so that screws (not shown) can be inserted therethrough.

[0028] As shown in FIG. 4, the upper second connection portion 36 is fixed to the upper corner portion main body 34, has a rectangular cylindrical shape, and extends in the horizontal direction X. The upper second connection portion 36 is configured to be inserted into an upper horizontal pipe member 33A (33B) described below. The upper second connection portion 36 also has a pair of upper second bolt holes 3D, 3D and a pair of upper second screw holes 3E, 3E. The pair of upper second bolt holes 3D, 3D are provided in a pair of upper second opposing walls 36A, 36B facing each other in the vertical direction Z, respectively, and are configured to receive second stud bolts B2. The pair of upper second screw holes 3E, 3E are provided side by side in the vertical direction Z in an upper second side wall 36C that is continuous with the pair of upper second opposing walls 36A, 36B. The pair of upper second screw holes 3E, 3E are configured so that screws (not shown) can be inserted therethrough.

[0029] As shown in Fig. 4, the upper vertical pipe member 32A is formed in a square tube shape that can be extrapolated to the upper first connection portion 35 of the upper corner portion 31A. In this upper vertical pipe member 32A, when the upper vertical pipe member 32A is extrapolated to the upper first connection portion 35 of the upper corner portion 31A, an upper first bolt communication hole 3F is formed at a position communicating with the upper first bolt hole 3B formed in the upper first connection portion 35, and a pair of upper first screw communication holes 3G, 3G is formed at positions communicating with a pair of upper first screw holes 3C, 3C formed in the upper first connection portion 35. The upper first bolt hole 3B and the upper first bolt communication hole 3F constitute the "upper member communication hole 30A" in the claims.

[0030] As shown in Fig. 4, the upper horizontal pipe member 33A is formed in a square tube shape that can be fitted around the upper second connection portion 36 of the upper corner portion 31A. When the upper horizontal pipe member 33A is fitted around the upper second connection portion 36 of the upper corner portion 31A, the upper horizontal pipe member 33A is provided with an upper second bolt communication hole 3H at a position communicating with the upper second bolt hole 3D provided in the upper second connection portion 36, and a pair of upper second screw communication holes 3I, 3I at positions communicating with a pair of upper second screw holes 3E, 3E provided in the upper second connection portion 36. The upper second bolt hole 3D and the upper second bolt communication hole 3H constitute the "upper member communication hole 30B" in the claims.

[0031] When assembling the upper frame 3 by fixing such upper corner portions 31A, upper vertical pipe members 32A, and upper horizontal pipe members 33A, the upper vertical pipe member 32A is extrapolated to the upper first connection portion 35 provided in the upper corner portion 31A, as shown in Figures 3 and 4. This allows the upper first bolt hole 3B provided in the upper first connection portion 35 to communicate with the upper first bolt communicating hole 3F provided in the upper vertical pipe member 32A, and also allows the pair of upper first screw holes 3C, 3C provided in the upper first connection portion 35 to communicate with the pair of upper first screw communicating holes 3G, 3G provided in the upper vertical pipe member 32A. This forms an upper member communicating hole 30A in which the upper first bolt hole 3B and the upper first bolt communicating hole 3F communicate with each other. In this state, screws are inserted into the upper first screw holes 3C and the upper first screw communicating holes 3G to fix the upper vertical pipe material 32A to the upper first connecting portion 35, that is, the upper corner portion main body 34.

[0032] Similarly, the upper horizontal pipe member 33A is inserted into the upper second connection portion 36 provided in the upper corner portion 31A. This forms the upper member communication hole 30B, which communicates with the upper second bolt hole 3D and the upper second bolt communication hole 3H. After this, screws are inserted into each upper second screw hole 3E and each upper second screw communication hole 3I to fix the upper horizontal pipe member 33A to the upper second connection portion 36, i.e., the upper corner portion main body 34. This fixes the upper corner portion 31A, upper vertical pipe member 32A, and upper horizontal pipe member 33A. This process is repeated four times to assemble the upper frame body 3.

[0033] 4, the connecting member 4 is configured to include a hexagon bolt 4A having a bolt head 40A and a bolt shank 40B, a spring washer 4B, a pair of plain washers 4C and 4D, a pair of insulating washers 4E and 4F, a hexagonal nut 4G, a snubber 4H, a rubber bushing 4I, and a locking nut 4J. The rubber bushing 4I includes a large-diameter portion 42 having a hole 41 through which the bolt shank 40B is inserted, and a small-diameter cylindrical portion 43 standing cylindrically from the hole 41 of the large-diameter portion 42.

[0034] As shown in FIG. 4, in the connecting member 4, with the bolt shank 40B inserted into the upper corner bolt hole 3A of the upper frame 3 and the lower corner bolt hole 2A of the lower frame 2, the bolt head 40A of the hexagon bolt 4A, the spring washer 4B, the flat washer 4C, and the insulating washer 4E are positioned above the mounting surface 341 of the bolt insertion portion 340 provided in the upper frame 3, and the insulating washer 4F, the flat washer 4D, the hexagon nut 4G, and the snubber 4 H is located between the mounting surface portion 341 of the bolt insertion portion 340 and the lower base plate portion 241 of the lower frame body 2, and the rubber bushing 4I and the anti-loosening nut 4J are located below the lower base plate portion 241 of the lower frame body 2 with the small diameter cylindrical portion 43 of the rubber bushing 4I inserted into the lower corner bolt hole 2A provided in the lower base plate portion 241 of the lower frame body 2, and the large diameter portion 42 of the rubber bushing 4I and the anti-loosening nut 4J are located below the lower base plate portion 241 of the lower frame body 2.

[0035] In such a connecting member 4, the bolt head 40A and the hexagonal nut 4G clamp the mounting surface portion 341 of the bolt insertion portion 340 provided on the upper frame 3, with the spring washer 4B, the plain washer 4C, the insulating washers 4E and 4F, and the plain washer 4D interposed therebetween, and the rubber bushing 4I is in contact with the lower base plate portion 241 of the lower frame 2 by the locking nut 4J. As a result, when the vibration generating device K vibrates, for example, the rubber bushing 4I contracts to absorb the vibration.

[0036] Next, the assembly procedure for assembling such a vibration-proof structure 1 will be described below with reference to FIGS.

[0037] First, the lower frame body 2 and the upper frame body 3 are assembled. Then, the lower frame body 2 and the upper frame body 3 are connected using the connecting member 4. When connecting the lower frame body 2 and the upper frame body 3, the upper frame body 3 is installed on the lower frame body 2 via the vibration-damping material 12. This positions the four lower corner bolt holes 2A of the lower frame body 2 and the four upper corner bolt holes 3A of the upper frame body 3 in positions that communicate in the vertical direction Z.

[0038] In this state, as shown in Figure 4, spring washer 4B, plain washer 4C, and insulating washer 4E are inserted in this order onto bolt shank 40B of hexagon bolt 4A, and then inserted into upper corner bolt hole 3A, followed by insulating washer 4F and plain washer 4D. Thereafter, hexagon nut 4G is brought close to the tip of bolt shank 40B and screwed onto it to fasten it.

[0039] After this, the small diameter cylindrical portion 43 of the rubber bushing 4I is inserted from below into the lower corner bolt hole 2A and left to fit into the lower corner bolt hole 2A, and the bolt shank portion 40B is inserted successively through the snubber 4H, the lower corner bolt hole 2A, and the rubber bushing 4I, and the anti-loosening nut 4J is screwed on and fastened.

[0040] As a result, the bolt head 40A and the hexagonal nut 4G clamp the mounting surface 341 of the bolt insertion portion 340 provided on the upper frame 3, and the locking nut 4J brings the rubber bushing 4I into contact with the lower base plate portion 241 of the lower frame 2. As a result, when the vibration-generating device K vibrates, for example, the vibration is absorbed by the contraction of the vibration-proof material 12 and the rubber bushing 4I. In this manner, the vibration-proof stand 10 is assembled.

[0041] After this, the lower frame 2 is brought close to a predetermined position on the installation surface S, and the tip of the installation stud bolt 5A erected on the installation surface S is brought close to and inserted into the lower member communicating hole 20A (20B) provided in the lower frame 2. Next, as shown in FIG. 1 , a square washer 5B is inserted into the installation stud bolt 5A, and nuts 5C and 5D are screwed on and fastened. As a result, the installation stud bolt 5A is fastened in a state where it is inserted through the lower vertical pipe member 22A and the lower first connection portion 25, and the installation stud bolt 5A is fastened in a state where it is inserted through the lower horizontal pipe member 23A and the lower second connection portion 26. This process is repeated to fix the lower frame 2 in a predetermined position on the installation surface S.

[0042] Finally, the vibration generating device K is placed close to a predetermined position on the upper frame 3. Then, a square washer 6B is inserted through the device mounting bolt 6A, and the tip of the device mounting bolt 6A is brought close from below and inserted through the upper material communication hole 30A (30B) provided in the upper frame 3 and the bolt hole (not shown) provided in the vibration generating device K. Next, as shown in FIG. 1, a square washer 6C is inserted through the device mounting bolt 6A, and nuts 6D and 6E are screwed and fastened.

[0043] As a result, with the equipment mounting bolt 6A inserted through the upper vertical pipe member 32A and the upper first connection portion 35, the vibration generating device K, the upper corner portion 31A, and the upper vertical pipe member 32A are fastened together, and with the equipment mounting bolt 6A inserted through the upper horizontal pipe member 33A and the upper second connection portion 36, the vibration generating device K, the upper corner portion 31A, and the upper horizontal pipe member 33A are fastened together. By repeating this process, the vibration generating device K is fixed to the upper frame 3. In this way, the assembly of the vibration-isolation structure 1 is completed. As a result, the vibration generating device K is installed on the installation surface S via the vibration-isolation frame 10.

[0044] In the vibration-proof structure 1 assembled in this manner, vibrations from the vibration-generating device K are transmitted to the vibration-proofing material 12 via the upper frame 3, and the transmitted vibrations are absorbed by the contraction of the vibration-proofing material 12. Furthermore, vibrations from the vibration-generating device K are absorbed by the contraction of the rubber bushing 4I. As a result, the vibrations transmitted from the vibration-generating device K to the installation surface S are reduced.

[0045] According to the above-described embodiment, the upper frame body 3 is formed in a frame shape including an upper corner portion 31A, and an upper vertical pipe material 32A and an upper horizontal pipe material 33A (a pair of upper frame materials) extending from the upper corner portion 31A in the vertical direction Y and the horizontal direction X which intersect with each other, and the vibration generating equipment K, the upper corner portion 31A, the upper vertical pipe material 32A and the upper horizontal pipe material 33A are fastened to each other by inserting an equipment mounting bolt 6A (first fastening member) into upper material communication holes 30A (30B) which are provided in the vibration generating equipment K, the upper corner portion 31A, the upper vertical pipe material 32A and the upper horizontal pipe material 33A and which communicate with each other. As a result, the vibration generating device K, the upper corner portions 31A constituting the upper frame 3, and the upper vertical pipe members 32A and upper horizontal pipe members 33A are firmly fastened together without any rattle, and the vibration of the vibration generating device K is directly transmitted to the vibration-proof material 12. This improves the vibration-proofing properties of the vibration-proof structure 1.

[0046] The lower frame 2 is formed in a frame shape and includes a lower corner 21A and lower vertical pipe members 22A and lower horizontal pipe members 23A (a pair of lower frame members) extending from the lower corner 21A in the vertical direction Y and horizontal direction X, which intersect with each other. The installation surface S, the lower corner 21A, and each pipe member 22A, 23A are fastened together by inserting installation stud bolts 5A (second fastening members) into lower member communication holes 20A (20B) provided in the installation surface S, the lower corner 21A, and each pipe member 22A, 23A, which communicate with each other. This allows the lower corner 21A and each pipe member 22A, 23A constituting the lower frame 2 to be firmly fastened together without rattle, and vibrations from the vibration-generating device K are sufficiently absorbed by the vibration-isolation rack 10. This further improves the vibration-isolation performance of the vibration-isolation structure 1.

[0047] The present invention is not limited to the above-described embodiment, but includes other configurations that can achieve the object of the present invention, and the following modified examples are also included in the present invention.

[0048] In the above embodiment, the lower vertical pipe member 22A and the lower corner portion main body 24 are fixed together using screws. Also, the lower horizontal pipe member 23A and the lower corner portion main body 24 are fixed together using screws, but the present invention is not limited to this. Rivets may be used instead of screws to fix the lower vertical pipe member 22A and the lower corner portion main body 24, or to fix the lower horizontal pipe member 23A and the lower corner portion main body 24. Similarly, rivets may be used to fix the upper vertical pipe member 32A and the upper corner portion main body 34, or to fix the upper horizontal pipe member 33A and the upper corner portion main body 34.

[0049] Although the best configurations and methods for carrying out the present invention have been disclosed above, the present invention is not limited thereto. That is, although the present invention has been particularly illustrated and described mainly with reference to specific embodiments, those skilled in the art can make various modifications to the above-described embodiments in terms of shape, material, quantity, and other detailed configurations without departing from the scope of the technical idea and purpose of the present invention. Therefore, the above-disclosed descriptions limiting the shape, material, etc. are provided as examples to facilitate understanding of the present invention and are not intended to limit the present invention. Therefore, descriptions using names of components that are free from some or all of the limitations on shape, material, etc. are included in the present invention. [Explanation of symbols]

[0050] 1. Vibration-proof structure 2 Lower frame 3 Upper frame 4 Connecting members 10 Vibration-proof stand 11 Vibration isolation stand body 12 Vibration isolation material 21A Lower corner 31A Upper corner 22A, 23A Lower vertical pipe and lower horizontal pipe (pair of lower frame members) 32A, 33A Upper vertical pipe and upper horizontal pipe (pair of upper frame members) 20A, 20B Bottom material communication hole 30A, 30B Top material communication hole 5A Installation stud bolt (secondary fastening member) 6A Equipment mounting bolt (first fastening member) K Vibration generating equipment S installation surface

Claims

1. A vibration-isolating structure configured by installing a vibration-generating device on an installation surface via a vibration-isolating stand, The vibration-isolating pedestal includes a vibration-isolating pedestal main body including a lower frame body to be installed on the installation surface, an upper frame body provided above the lower frame body and on which the vibration-generating device is installed, and a connecting member connecting the upper frame body and the lower frame body; a vibration-isolating material provided on the vibration-isolating frame body to absorb vibrations from the vibration-generating device, the upper frame body is provided in a frame shape including an upper corner portion and a pair of upper frame members extending from the upper corner portion in directions intersecting each other, A vibration-damping structure characterized in that the vibration-generating device, the upper corner portion, and each upper frame material are fastened to each other by inserting a first fastening member into upper material communication holes that are provided in the vibration-generating device, the upper corner portion, and each upper frame material and communicate with each other.

2. the lower frame body is formed in a frame shape including a lower corner portion and a pair of lower frame members extending from the lower corner portion in directions intersecting each other, The vibration-damping structure described in claim 1, characterized in that the installation surface, the lower corner portion, and each lower frame material are fastened to each other by inserting a second fastening member into lower material communicating holes that are provided in the installation surface, the lower corner portion, and each lower frame material and communicate with each other.

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