Stopper and vibration isolation structure

Abstract

To provide a stopper and vibration-damping structure capable of suppressing the transmission of vibrations. [Solution] A stopper for restricting the relative displacement between a first support member (upper frame 2) on which a vibration source V is provided, and a second support member (lower frame 3) that supports the first support member via a vibration-damping member 4, comprising: a fixing part (fixing part 11, fixing part 21) fixed to either the first support member or the second support member in a position that can be adjusted; and a restricting part (restricting part 12, restricting part 22) that directly or indirectly contacts the other of the first support member or the second support member to restrict the relative displacement between the first support member and the second support member.

Description

Technical Field

[0001] The present invention relates to the technology of stoppers and vibration isolation structures.

Background Art

[0002] Conventionally, a technology of a vibration isolation structure that arranges a vibration isolation member between an upper mounting table and a lower mounting table to prevent the transmission of vibration from a vibration source (for example, an outdoor air conditioner unit, etc.) placed on the upper mounting table is known. For example, it is as described in Patent Document 1.

[0003] In the technology described in Patent Document 1, the vibration of the upper mounting table is absorbed by a vibration isolation member such as a cushion member. Thereby, it is possible to prevent the vibration of the vibration source from being transmitted to the installation location (such as a building, etc.) via the lower mounting table.

[0004] Also, in the technology described in Patent Document 1, a bolt shaft (stopper) is provided so as to penetrate the upper mounting table and the lower mounting table. By arranging the bolt shaft in this way, when the upper mounting table tends to be displaced excessively in the horizontal direction with respect to the lower mounting table, the bolt shaft abuts against the inner periphery of the through hole of the upper mounting table, so that excessive displacement of the upper mounting table can be prevented. In this way, by providing a stopper that regulates the displacement of the upper mounting table, it is possible to prevent the vibration source placed on the upper mounting table from falling or being damaged.

[0005] However, in the technology described in Patent Document 1, when the position of the upper mounting table with respect to the lower mounting table is displaced due to installation errors, dimensional errors, deterioration of the vibration isolation member, etc., there is a risk that the bolt shaft approaches the inner periphery of the through hole. When the vibration source vibrates in this state, there is a risk that vibration is transmitted from the upper mounting table to the lower mounting table via the bolt shaft due to the bolt shaft contacting the inner periphery of the through hole.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Summary of the Invention

[0007] This invention has been made in view of the above circumstances, and the problem it aims to solve is to provide a stopper and vibration-damping structure that can suppress the transmission of vibrations. [Means for solving the problem]

[0008] The problems that this invention aims to solve are as described above, and the means for solving these problems will now be explained.

[0009] That is, claim 1 provides a stopper for restricting the relative displacement of a first support member on which a vibration source is provided and a second support member that supports the first support member via a vibration damping member, comprising: a fixing portion fixed to either the first support member or the second support member so as to be adjustable in position; and a restricting portion that restricts the relative displacement of the first support member and the second support member by directly or indirectly contacting the other of the first support member or the second support member.

[0010] In claim 2, the fixing portion is provided with an elongated hole through which a fastener for fixing the fixing portion to either the first support member or the second support member can be inserted.

[0011] In claim 3, the restricting portion comprises at least two planar portions facing in different directions from one another.

[0012] Claim 4 comprises the stopper, the first support member, the second support member, and the vibration damping member.

[0013] Claim 5 includes a first stopper fixed to the first support member and a second stopper fixed to the second support member and capable of contacting the first stopper.

[0014] In claim 6, the restricting portion of the first stopper is arranged to overlap with the restricting portion of the second stopper in the direction in which the first support member and the second support member face each other.

[0015] In claim 7, the first stopper and the second stopper are formed to have the same shape. [Effects of the Invention]

[0016] In this invention, the transmission of vibrations can be suppressed. [Brief explanation of the drawing]

[0017] [Figure 1] A front view showing the vibration isolation structure according to the first embodiment. [Figure 2] A plan view showing the vibration isolation structure according to the first embodiment. [Figure 3] (a) Perspective view showing the lower stopper. (b) Plan view showing the lower stopper. [Figure 4] (a) Plan view showing the upper stopper being adjusted to the right. (b) Plan view showing the upper stopper being adjusted to the left. [Figure 5] (a) A plan view showing the upper frame being displaced to the left. (b) A plan view showing the upper frame being displaced forward. [Figure 6] (a) Plan view showing the vibration isolation structure according to the second embodiment. (b) Plan view showing the lower stopper according to the second embodiment. [Figure 7] A plan view showing the vibration isolation structure according to the third embodiment. [Figure 8] (a) A plan view showing the vibration isolation structure according to the fourth embodiment. (b) A front view showing the vibration isolation structure according to the fourth embodiment.

Best Mode for Carrying Out the Invention

[0018] In the following description, the vertical direction, the front - rear direction, and the left - right direction are defined according to the arrows shown in the figures. Also, in each figure, for convenience of explanation, the shape and size of members may be appropriately changed (simplified, omitted, etc.).

[0019] Hereinafter, with reference to FIGS. 1 and 2, the vibration - proof structure 1 according to the first embodiment of the present invention will be described.

[0020] The vibration - proof structure 1 is for preventing the transmission of vibration from the vibration source V. As the vibration source V, various devices that generate vibration, such as an outdoor air - conditioner unit, a compressor, etc., are assumed. Also, as the installation location of the vibration source V, various locations, such as the rooftop of a building, the balcony of a condominium, etc., are assumed. By using the vibration - proof structure 1, for example, the vibration of an outdoor air - conditioner unit can be prevented from being transmitted to the building. The vibration - proof structure 1 mainly includes an upper mounting base 2, a lower mounting base 3, vibration - proof members 4, a lower stopper 10, an upper stopper 20, etc.

[0021] The upper mounting base 2 is a part that supports the vibration source V. The upper mounting base 2 is formed in a flat - plate shape with the thickness direction oriented vertically. The upper mounting base 2 is formed in a rectangular shape in plan view. At the center of the upper surface of the upper mounting base 2, the vibration source V is placed. The vibration source V may be fixed to the upper mounting base 2 using a fastening tool such as a bolt.

[0022] The lower mounting base 3 is a part that supports the upper mounting base 2 via the vibration - proof members 4 described later. The lower mounting base 3 is formed in substantially the same shape as the upper mounting base 2. That is, the lower mounting base 3 is formed in a flat - plate shape with the thickness direction oriented vertically. The lower mounting base 3 is formed in a rectangular shape in plan view. The lower mounting base 3 is arranged below the upper mounting base 2 so as to face the upper mounting base 2 vertically. The lower mounting base 3 is placed on the floor surface at the installation location of the vibration source V (such as the rooftop of a building).

[0023] The vibration isolation member 4 is a member that prevents vibrations from being transmitted from the upper frame 2 to the lower frame 3. Various materials capable of absorbing and mitigating vibrations (e.g., vibration-damping rubber, springs, etc.) can be used as the vibration isolation member 4. The vibration isolation member 4 is positioned between the lower surface of the upper frame 2 and the upper surface of the lower frame 3. The vibration isolation member 4 is provided in an appropriate number and at appropriate positions so as to stably support the upper frame 2.

[0024] The lower stopper 10 and the upper stopper 20 are for restricting excessive displacement of the upper frame 2 relative to the lower frame 3. The lower stopper 10 is fixed to the lower frame 3, and the upper stopper 20 is fixed to the upper frame 2. The lower stopper 10 and the upper stopper 20 are positioned near the four corners of the lower frame 3 and the upper frame 2, facing each other vertically. In this embodiment, the lower stopper 10 and the upper stopper 20 are made of the same material. Therefore, the following description will mainly focus on the lower stopper 10 and its configuration, and the description of the upper stopper 20 will be omitted as appropriate.

[0025] The lower stopper 10 shown in Figure 3 mainly comprises a fixing portion 11 and a restricting portion 12.

[0026] The fixing portion 11 is the part that is fixed to the lower frame 3. The fixing portion 11 is formed in the shape of a flat plate with its thickness direction oriented vertically. The fixing portion 11 is formed in the shape of a rectangle in plan view. In the example in Figure 3, the fixing portion 11 is shown in a state where its longitudinal direction is oriented horizontally. An elongated hole 11a is formed in the fixing portion 11.

[0027] The elongated hole 11a is a through-hole formed to penetrate the fixing portion 11 in the thickness direction. The elongated hole 11a is formed in a rectangular shape when viewed from above. The elongated hole 11a is formed so that its longitudinal direction is to the left and right (the longitudinal direction of the fixing portion 11). The elongated hole 11a is formed to extend from near one end of the fixing portion 11 (the left end in Figure 3) to the left and right center of the fixing portion 11.

[0028] The restricting portion 12 is the part that can abut against the upper stopper 20. The restricting portion 12 is formed from a plate-shaped member. The restricting portion 12 is erected perpendicularly to one side of the fixing portion 11 (the top surface in Figure 3). In a plan view, the restricting portion 12 is formed so as to bend its central part by approximately 90 degrees. This creates a first planar portion 12a and a second planar portion 12b (shown only in Figure 3) facing in different directions, forming a V-shape overall in a plan view. The restricting portion 12 is provided near the other end of the fixing portion 11 (the right end in Figure 3). In a plan view, the bent portion (the sharp V-shaped tip) of the restricting portion 12 is positioned toward the other end of the fixing portion 11 (the right side in Figure 3).

[0029] The configuration of the lower stopper 10 has been described above, but the upper stopper 20 is also formed in the same shape as the lower stopper 10. That is, the upper stopper 20 comprises a fixing portion 21 (elongated hole 21a) and a restricting portion 22 (first flat portion 22a, second flat portion 22b). The fixing portion 21 (elongated hole 21a) and restricting portion 22 (first flat portion 22a, second flat portion 22b) of the upper stopper 20 are configured in the same way as the fixing portion 11 (elongated hole 11a) and restricting portion 12 (first flat portion 12a, second flat portion 12b) of the lower stopper 10.

[0030] As shown in Figures 1 and 2, the upper stopper 20 and the lower stopper 10 are fixed to the upper frame 2 and the lower frame 3 so as to face each other in the vertical direction. The method of fixing the upper stopper 20 and the lower stopper 10 will be described below.

[0031] As shown in Figures 1, 2, and 4, the fixing portion 21 of the upper stopper 20 is placed on the upper frame 2 and fixed to the upper frame 2 by appropriate fasteners such as bolts B.

[0032] As shown in Figure 4, focusing on the upper stopper 20 located on the front right side of the upper frame 2, the upper stopper 20 is positioned so that the restricting portion 22 faces downward. In this state, the left side of the fixing portion 21 rests on the upper surface of the upper frame 2. The right side of the fixing portion 21 is positioned to protrude to the right from the upper frame 2. As a result, the restricting portion 22 of the upper stopper 20 is positioned to the right of the upper frame 2 and extends downward.

[0033] A bolt B is inserted from above through the elongated hole 21a of the fixing part 21, and the tip of the bolt B is fastened to the upper frame 2. Before the bolt B is fully tightened, the fixing part 21 is allowed to move along the elongated hole 21a, as shown in Figure 4. Therefore, the position of the upper stopper 20 can be adjusted in this state. After adjusting the position of the upper stopper 20, the upper stopper 20 can be fixed to the upper frame 2 by fully tightening the bolt B. The position of the upper stopper 20 can also be adjusted again by loosening the bolt B. Note that the elongated hole 21a is not shown in Figure 2 for the sake of simplifying the drawing.

[0034] As shown in Figure 2, the other upper stoppers 20 are also positioned so that their restricting portions 22 are located on the left and right outer sides of the upper frame 2, and are fixed to the upper frame 2.

[0035] Furthermore, as shown in Figures 1 and 2, the lower stopper 10 is positioned below the upper stopper 20 (in a position opposite the upper stopper 20 in the vertical direction). The fixing portion 11 of the lower stopper 10 is placed on the lower frame 3 and fixed to the lower frame 3 by appropriate fasteners such as bolts B.

[0036] The method of fixing the lower stopper 10 to the lower frame 3 is generally the same as the method of fixing the upper stopper 20 to the upper frame 2, so a detailed explanation will be omitted. The position of the lower stopper 10 can also be adjusted, just like the upper stopper 20. As shown in Figure 2, the restricting portion 12 of the lower stopper 10 is positioned to the left and right inner sides of the restricting portion 22 of the upper stopper 20. Also, as shown in Figure 1, the restricting portion 12 of the lower stopper 10 and the restricting portion 22 of the upper stopper 20 are positioned to overlap by a predetermined width in the vertical direction.

[0037] The lower stopper 10 and the upper stopper 20 are fixed to the upper frame 2 and the lower frame 3 after the other components of the vibration isolation structure 1 (upper frame 2, lower frame 3, and vibration isolation member 4) are assembled and the vibration source V is installed on the upper frame 2. At this time, the positions of the lower stopper 10 and the upper stopper 20 are adjusted so that a predetermined gap of size is secured in the left-right direction between the restricting portion 12 of the lower stopper 10 and the restricting portion 22 of the upper stopper 20.

[0038] The size of the gap between the restricting portion 12 of the lower stopper 10 and the restricting portion 22 of the upper stopper 20 is set such that the restricting portion 12 and the restricting portion 22 do not come into contact when the upper frame 2 is displaced relative to the lower frame 3 due to vibrations from the vibration source V. Furthermore, the gap is set such that the restricting portion 12 and the restricting portion 22 come into contact when the upper frame 2 attempts to displace excessively relative to the lower frame 3.

[0039] In the vibration isolation structure 1 configured as described above, when the vibration source V shown in Figure 1 vibrates, the vibration isolation member 4 can prevent the vibration of the upper frame 2 from being transmitted to the lower frame 3. This prevents the transmission of vibration to the building on which the vibration source V is installed.

[0040] In this case, as mentioned above, the gap between the restricting portion 12 of the lower stopper 10 and the restricting portion 22 of the upper stopper 20 is set to a size such that they will not come into contact due to the displacement of the upper frame 2 caused by the vibration of the vibration source V. Therefore, it is possible to prevent the vibration of the vibration source V from being transmitted to the building via the lower stopper 10 and the upper stopper 20.

[0041] In particular, in this embodiment, the fixing positions of the lower stopper 10 and the upper stopper 20 can be adjusted. Therefore, the gap between the restricting portion 12 of the lower stopper 10 and the restricting portion 22 of the upper stopper 20 can be adjusted to an appropriate size in response to dimensional errors when assembling the upper frame 2 and the lower frame 3, or to the displacement of the upper frame 2 due to the load when the vibration source V is installed on the upper frame 2. Therefore, in this embodiment, it is possible to appropriately prevent the vibrations of the vibration source V from being transmitted to the building by the restricting portion 12 and the restricting portion 22 coming into contact unexpectedly. Furthermore, even if deformation (such as sagging) of the vibration-damping member 4 occurs due to aging, it is possible to prevent unexpected contact between the restricting portion 12 and the restricting portion 22 by readjusting the fixing positions of the lower stopper 10 and the upper stopper 20 again.

[0042] Furthermore, if the upper frame 2 is displaced significantly horizontally relative to the lower frame 3 for any reason (for example, if an earthquake occurs or if the vibration source V is being blown by strong winds), as shown in Figure 5, the restricting portion 22 of the upper stopper 20 fixed to the upper frame 2 and the restricting portion 12 of the lower stopper 10 fixed to the lower frame 3 will come into contact. In this way, the upper stopper 20 provided on the upper frame 2 indirectly contacts the lower frame 3 via the lower stopper 10, thereby restricting excessive displacement of the upper frame 2 relative to the lower frame 3.

[0043] For example, as shown in Figure 5(a), when the upper frame 2 is displaced to the left relative to the lower frame 3, the left and right inner sides of the restricting portion 22 of the upper stopper 20, which is located on the right side of the upper frame 2, come into contact with the left and right outer sides of the restricting portion 12 of the lower stopper 10. This restricts the leftward displacement of the upper frame 2.

[0044] Furthermore, as shown in Figure 5(b), when the upper frame 2 is displaced forward relative to the lower frame 3, the rear flat portion of the restricting portion 22 of the upper stopper 20 comes into contact with the rear flat portion of the restricting portion 12 of the lower stopper 10. This restricts the forward displacement of the upper frame 2.

[0045] In this embodiment in particular, the restricting portion 12 is formed by two planar portions (first planar portion 12a and second planar portion 12b) facing in different directions (see Figure 3). Therefore, for example, when the restricting portion 22 of the upper stopper 20 comes into contact with the restricting portion 12 of the lower stopper 10 from the outside (right side) as shown in Figure 3, the first planar portion 12a restricts the movement of the upper stopper 20 to the left and rear, and the second planar portion 12b restricts the movement of the upper stopper 20 to the left and forward (see also Figure 5). By forming multiple planar portions in the restricting portion 12 in this way, the displacement of the upper frame 2 in multiple directions can be restricted.

[0046] In this way, the lower stopper 10 and the upper stopper 20 prevent excessive horizontal displacement of the upper frame 2 (in the front-to-back and left-to-right directions). This ensures the seismic resistance of the vibration isolation structure 1, preventing the vibration source V from losing balance and falling, and preventing damage to the vibration source V or components (hoses, etc.) connected to the vibration source V.

[0047] Furthermore, as shown in Figure 1, the restricting portion 12 of the lower stopper 10 and the restricting portion 22 of the upper stopper 20 are arranged to overlap by a predetermined width in the vertical direction. By overlapping the restricting portions 12 and 22 in this way, it is possible to prevent the upper frame 2 from falling off the lower frame 3 if the upper frame 2 is displaced upward relative to the lower frame 3 (preventing it from coming loose).

[0048] The lower stopper 10 and upper stopper 20 described above can be attached to existing vibration-damping structures relatively easily. Therefore, it is possible to add earthquake-resistant functionality to existing vibration-damping structures.

[0049] In the first embodiment, an example was shown in which the restricting portion 12 of the lower stopper 10 was positioned on the left and right inner sides of the restricting portion 22 of the upper stopper 20 (see Figures 1, 2, and 5). However, it is also possible to position the restricting portion 12 of the lower stopper 10 on the left and right outer sides of the restricting portion 22 of the upper stopper 20. By positioning them in this way, the gap between the restricting portion 12 and the restricting portion 22 can be easily seen from the outside, making it easier to adjust the positions of the lower stopper 10 and the upper stopper 20.

[0050] As described above, the stopper (lower stopper 10, upper stopper 20) according to this embodiment is A stopper that restricts the relative displacement between a first support member (upper frame 2) on which a vibration source V is provided, and a second support member (lower frame 3) that supports the first support member via a vibration-damping member 4, A fixing part (fixing part 11, fixing part 21) is fixed to either the first support member or the second support member so as to be adjustable in position, A restricting portion (restricting portion 12, restricting portion 22) that directly or indirectly contacts the other of the first support member and the second support member to restrict the relative displacement between the first support member and the second support member, It is equipped with the following features.

[0051] This configuration makes it possible to suppress the transmission of vibrations. Specifically, by adjusting the positions of the stoppers (lower stopper 10, upper stopper 20), it is possible to prevent the stoppers from unexpectedly coming into contact with the support member. This prevents vibrations from being transmitted through the stoppers, and thus prevents a decrease in the vibration isolation performance of the vibration isolation structure 1. Furthermore, earthquake resistance can be ensured without using large-scale components. In addition, since the stopper can be made with a simple configuration, the overall space of the vibration-damping structure 1 can be reduced.

[0052] Furthermore, in the stopper (lower stopper 10, upper stopper 20) according to this embodiment, The aforementioned fixing parts (fixing part 11, fixing part 21) include: Elongated holes (elongated holes 11a, elongated holes 21a) are formed in either the first support member or the second support member, through which a fastener (bolt B) for fixing the fixing part can be inserted.

[0053] This configuration allows for the creation of a stopper with a simple structure that allows for position adjustment.

[0054] Furthermore, in the stopper (lower stopper 10, upper stopper 20) according to this embodiment, The aforementioned regulatory units (regulatory unit 12, regulatory unit 22) It comprises at least two planar sections (first planar section 12a, second planar section 12b, see Figure 3) facing in different directions from each other.

[0055] With this configuration, the relative displacement of the first support member (upper frame 2) and the second support member (lower frame 3) in multiple directions can be restricted by the multiple planar sections.

[0056] Furthermore, the vibration isolation structure 1 according to this embodiment is Stoppers (lower stopper 10, upper stopper 20), The first support member (upper frame 2), The second support member (lower frame 3) and, The vibration-damping member 4, It is equipped with the following features.

[0057] This configuration makes it possible to suppress the transmission of vibrations. Specifically, by adjusting the positions of the stoppers (lower stopper 10, upper stopper 20), it is possible to prevent the stoppers from accidentally contacting the support member. This prevents vibrations from being transmitted through the stoppers.

[0058] Furthermore, in the vibration isolation structure 1 according to this embodiment, The stopper is, A first stopper (upper stopper 20) is fixed to the first support member (upper frame 2), A second stopper (lower stopper 10) is fixed to the second support member (lower frame 3) and is capable of contacting the first stopper, It includes.

[0059] This configuration prevents the stopper from coming into contact with the support members (upper frame 2 and lower frame 3), thus preventing damage to the support members.

[0060] Furthermore, in the vibration isolation structure 1 according to this embodiment, The restricting portion 22 of the first stopper (upper stopper 20) is The first support member (upper frame 2) and the second support member (lower frame 3) are positioned so as to overlap with the regulating portion 12 of the second stopper (lower stopper 10) in the direction in which they face each other (up and down direction).

[0061] With this configuration, when the first support member (upper frame 2) and the second support member (lower frame 3) are displaced in opposing directions (vertical direction), the first stopper (upper stopper 20) and the second stopper (lower stopper 10) can prevent the first support member from falling or otherwise falling.

[0062] Furthermore, in the vibration isolation structure 1 according to this embodiment, The first stopper (upper stopper 20) and the second stopper (lower stopper 10) are formed to be the same shape.

[0063] This configuration allows for the standardization of components, reducing construction time and costs.

[0064] The following describes other embodiments (modified versions) of the vibration-damping structure (stopper) according to the present invention.

[0065] Figure 6 shows the lower stopper 10A and upper stopper 20A of the vibration isolation structure 1A according to the second embodiment. The difference between the lower stopper 10A and upper stopper 20A according to the second embodiment and the first embodiment (see Figures 3, 5, etc.) is the shape of the restricting portion 12 and the restricting portion 22.

[0066] In the second embodiment, the restricting portion 12 of the lower stopper 10A is formed in an L-shape in plan view. More specifically, as shown in Figure 6(b), the restricting portion 12 of the lower stopper 10A has a first planar portion 12a facing in the front-rear direction and a second planar portion 12b facing in the left-right direction, and is formed in an L-shape overall in plan view. In plan view, the restricting portion 12 is arranged so that the bent portion (L-shaped corner) is located on the left and right outer sides of the fixing portion 11. As shown in Figure 6(b), the lower stoppers 10A arranged on both the left and right sides of the vibration isolation structure 1 are formed in a shape that is symmetrical to each other. Although not shown in the figure, the lower stoppers 10A arranged on both the front and rear sides of the vibration isolation structure 1 are also formed in a shape that is symmetrical to each other in the front and rear.

[0067] Furthermore, the upper stopper 20A is also provided with a restricting portion 22 that is formed in an L-shape in plan view, similar to the lower stopper 10A. The restricting portion 12 of the lower stopper 10A and the restricting portion 22 of the upper stopper 20A, which are arranged to face each other vertically, are positioned so that their bent portions (L-shaped corners) face the same direction.

[0068] Even when using the lower stopper 10A and upper stopper 20A configured in this way according to the second embodiment, excessive displacement of the upper frame 2 relative to the lower frame 3 can be prevented, just as in the first embodiment.

[0069] Figure 7 shows the lower stopper 10B of the vibration-damping structure 1B according to the third embodiment. The difference between the lower stopper 10B according to the third embodiment and the first embodiment (see Figures 3, 5, etc.) is the shape of the restricting portion 12.

[0070] In the third embodiment, the restricting portion 12 of the lower stopper 10B is formed in a cylindrical shape that extends in the vertical direction. In a plan view, the restricting portion 12 is positioned on the left and right inner sides of the restricting portion 22 of the upper stopper 20.

[0071] Even when using the lower stopper 10B and upper stopper 20 configured in this third embodiment, excessive displacement of the upper frame 2 relative to the lower frame 3 can be prevented, similar to the first embodiment. Specifically, if the upper frame 2 is displaced significantly horizontally relative to the lower frame 3 for any reason, the restricting portion 22 of the upper stopper 20 fixed to the upper frame 2 and the restricting portion 12 of the lower stopper 10B fixed to the lower frame 3 come into contact, thereby restricting excessive displacement of the upper frame 2. In this case, since the restricting portion 22 of the upper stopper 20 has two planar portions (first planar portion 12a and second planar portion 12b; see Figure 3) facing in different directions, displacement of the upper frame 2 in multiple directions can be restricted.

[0072] As shown in the second and third embodiments (see Figures 6 and 7), the shapes of the restricting portion 12 and restricting portion 22 can be arbitrarily changed. Furthermore, the shapes of the fixing portion 11 and fixing portion 21 can also be arbitrarily changed in accordance with the shapes of the restricting portion 12 and restricting portion 22, etc.

[0073] Figure 8 shows the upper stopper 20C of the vibration-damping structure 1C according to the fourth embodiment. The differences between the fourth embodiment and the first embodiment (see Figures 1 and 5, etc.) are that the lower stopper 10 is not provided, and the shape of the upper stopper 20C.

[0074] In the fourth embodiment, the fixing portion 21 of the upper stopper 20C is positioned to protrude outward from the four corners of the upper frame 2 in a plan view. The restricting portion 22 is formed in an L-shape in a plan view, similar to the second embodiment (see Figure 6). The restricting portion 22 is positioned to extend downward from the lower surface of the fixing portion 11. The lower end of the restricting portion 22 is positioned to overlap with the lower frame 3 in the vertical direction. In a plan view (see Figure 8(a)), the restricting portion 22 is positioned to surround the corners of the lower frame 3 from the outside (two directions). The restricting portion 22 is positioned so as to ensure a predetermined gap between it and the lower frame 3. By adjusting the position of the fixing portion 21, the size of the gap between the restricting portion 22 and the lower frame 3 can be adjusted.

[0075] In the vibration isolation structure 1 according to the fourth embodiment, if the upper frame 2 is displaced significantly horizontally relative to the lower frame 3, the restricting portion 22 of the upper stopper 20C fixed to the upper frame 2 will come into contact with the corner of the lower frame 3. By the upper stopper 20C provided on the upper frame 2 directly contacting the lower frame 3, excessive displacement of the upper frame 2 relative to the lower frame 3 is restricted. In this way, it is also possible to restrict excessive displacement of the upper frame 2 by directly contacting the upper stopper 20C with the lower frame 3 without providing a lower stopper 10.

[0076] In the fourth embodiment, an example was shown in which the upper stopper 20C provided on the upper frame 2 is in direct contact with the lower frame 3. However, it is also possible to configure the system so that, for example, the stopper provided on the lower frame 3 is in direct contact with the upper frame 2.

[0077] Although embodiments of the present invention have been described above, the present invention is not limited to the above configuration, and various modifications are possible within the scope of the invention as described in the claims.

[0078] For example, the vibration isolation structure 1 shown in the above embodiment is just one example, and the shape, size, number, etc. of each part (upper frame 2, lower frame 3, vibration isolation member 4, lower stopper 10 and upper stopper 20, etc.) can be changed as desired.

[0079] Furthermore, in the above embodiment, examples were shown in which rectangular (longitudinal) elongated holes 11a and 21a (see Figure 3) were formed in the fixing part 11 and fixing part 21, but the shape of the elongated holes 11a and 21a is not limited to this. In other words, the shape of the elongated holes 11a and 21a can be arbitrarily changed so that the position of the stopper (lower stopper 10 and upper stopper 20, etc.) can be adjusted in the required direction.

[0080] Furthermore, while the above embodiment illustrates a method for adjusting the position of stoppers (lower stopper 10 and upper stopper 20, etc.) using elongated holes 11a and 21a, the method for adjusting the position of stoppers according to the present invention is not limited to this. For example, it is also possible to use a rail or the like that guides the stopper so that it can move in a predetermined direction.

[0081] Furthermore, although not illustrated in the above embodiment, it is also possible to adjust the position of the lower stopper 10 and the upper stopper 20, for example, by using spacers of an appropriate shape when fixing them.

[0082] Furthermore, while the first embodiment (see Figure 3) shows an example in which the lower stopper 10 and the upper stopper 20 are formed to the same shape, it is also possible to form the lower stopper 10 and the upper stopper 20 to different shapes. [Explanation of symbols]

[0083] 1. Vibration isolation structure 2 Upper stand 3 Lower mount 4. Vibration Isolator 10 Lower stopper 11 Fixed part 11a long hole 12 Regulatory Department 12a First planar section 12b Second planar section 20 Upper stopper 21 Fixed part 21a long hole 22 Regulatory Department 22a First planar section 22b Second planar section

Claims

1. A stopper that restricts the relative displacement between a first support member on which a vibration source is provided and a second support member that supports the first support member via a vibration-damping member, A fixing portion is provided that is fixed to either the first support member or the second support member in such a way that its position can be adjusted. A restricting portion that directly or indirectly contacts the other of the first support member and the second support member to restrict the relative displacement between the first support member and the second support member, A stopper equipped with the following features.

2. The aforementioned fixing part includes, An elongated hole is formed in either the first support member or the second support member through which a fastener for fixing the fixing portion can be inserted. The stopper according to claim 1.

3. The aforementioned regulatory body, It comprises at least two planar sections facing in different directions, The stopper according to claim 1.

4. A stopper according to any one of claims 1 to 3, The first support member and, The second support member and, The vibration-damping member and, A vibration-damping structure equipped with the following features.

5. The stopper is, A first stopper fixed to the first support member, A second stopper fixed to the second support member and capable of contacting the first stopper, including, The vibration isolation structure according to claim 4.

6. The restricting portion of the first stopper is In the direction in which the first support member and the second support member face each other, the second stopper is positioned so as to overlap with the restricting portion. The vibration isolation structure according to claim 5.

7. The first stopper and the second stopper are formed to have the same shape. The vibration isolation structure according to claim 5.

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