JPH02232463A - Earthquakeproof device - Google Patents

Abstract

PURPOSE:To improve an earthquakeproof effect by bonding one end of an elastic bonding body with the inner end of the tapered recessed section of a sliding board and coupling the other end with a bonding board supporting a support object in the vicinity of the opening end of the recessed section. CONSTITUTION:An elastic bonding post body 3 is arranged into the tapered recessed section 2 of a sliding board 1 installed onto a floor foundation 15. The lower end of the post body 3 is inserted into the bonding hole 4 of the sliding board 1 and supported by a short cylinder section 5 while the elastic collar 6 of the post body 3 is housed into the bonding recessed section 7 of the sliding board 1. A bolt 8 mounted at the upper end of the post body 3 is inserted into a bolthole 12 formed to the housing recessed section 11 of a bonding board 10 from a lower section, a nut 9 is clamped to the bolt 8 and the bonding board 10 is combined with the upper end of the post 3. A floor board 16 is joined with the top face of the bonding board 10.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention is an insulating material that supports foundations of various buildings, floors in excavated structures, and various devices or articles while protecting them from earthquakes and other vibrations. It is related to seismic equipment. [Conventional technology 1 Conventional seismic isolation devices basically support the floor by
A structure has been proposed in which legs are formed at the bottom of a board and rubber is attached to the lower ends of these legs. There are also types in which elastic material is placed between the foundation and the structure as a seismic isolation device. No seismic isolation device to support the foundation has been proposed. [Problem to be solved by the invention 1 The former is integrated with the floor and cannot be freely used for seismic isolation of various objects. Furthermore, due to its mechanism, it cannot adequately deal with horizontal shaking. Similarly, the latter cannot be freely applied to various objects. The present invention provides a seismic isolation effect while easily supporting various objects requiring seismic isolation, such as the floor of a building, the foundation of the building itself, or other various articles or devices. The purpose is to provide a device to obtain [Thousand Steps for Solving the Problems J] The gist of the configuration of the present invention is that a tapered recess whose diameter becomes larger toward the opening is formed in the center of the slide plate, and the inner end of the tapered recess one end of the elastic coupling body is coupled to the opening end of the tapered recess, the other end of the elastic coupling body located near the opening end of the tapered recess constitutes a coupling means to a supported object, and the back surface of the slide plate is provided with the tapered coupling body. This is a seismic isolation device that has a reinforcing means around the protrusion formed on the back side of the shaped recess. The above-mentioned slide plate can freely adopt various shapes such as square, polygon, or circle when viewed from the plane. However, a circular shape that is uniform in all horizontal directions is most appropriate. The above-mentioned slide base can be molded from plastic or made of metal, depending on the weight of the object to be supported. Preferably, the outer surface of the slide plate has a smooth surface.
This can be constructed, for example, by coating the surface with tetrafluoroethylene resin.

The above tapered recess is. It is best to determine the opening angle by taking into account the acceptable level of horizontal amplitude during earthquakes, etc.

If possible, in the event of the largest expected earthquake, if the upper or lower end of the elastic coupling body oscillates in the horizontal direction,
It is best that the outer end of the elastic connector does not easily come into contact with the opening end of the tapered recess. The connection between the tapered upper recess and the elastic coupling body can be achieved, for example, by first forming an elastic collar at the end of the elastic coupling body, and then connecting the elastic coupling body from the other end and from the back side of the slide plate. , the elastic collar is inserted into a coupling hole bored at the inner end of the tapered recess, and the elastic collar is locked at the rear side edge of the coupling hole. Note that it is preferable to form a locking recess at the rear side edge of the coupling hole with a depth such that a portion of the elastic collar in the thickness direction fits therein.

Further, for example, the above-mentioned connection is constructed by fitting the end portion of the above-mentioned elastic coupling body into a cylindrical body separately provided upright at the inner end of the above-mentioned tapered recessed portion, and applying a mechanism to prevent the elastic coupling body from coming off. Or for example. The above-mentioned coupling consists of forming a small-diameter cylindrical part with a constant diameter from the inner end of the tapered recess to the middle, and fitting the end of the elastic coupling body into the cylindrical part, and taking measures to prevent it from coming off. Construct by applying.

By the way, the above-mentioned elastic bonding body is composed of, for example, a cylindrical rubber member. Alternatively, it may be constructed from a roughly gourd-shaped rubber member with a small diameter in the center.

Although the material of the rubber member is not limited to a specific material, it is preferable to use synthetic rubber having appropriate elasticity. It is appropriate to prepare various types of elasticity in appropriate stages and use them depending on the weight of the object they support. In addition, when the elastic joint is set in the sliding position and no load is applied, the length and elasticity are such that, for example, there is a slight gap between the joint and the facing part. It is appropriate to do so. Furthermore, the connection 'f'-stage of the elastic connection body to the supported object is as follows:
Various configurations can be freely adopted. For example, the above-mentioned coupling means is constituted by a coupling part connected to the end portion of the third part of the above-mentioned elastic coupling body. The above connecting root has a smooth surface facing the slide plate. The other surface will be the connecting surface with the lower surface of the target subject to seismic isolation. This connection may be made using an adhesive or the like. Or you can just post it. In addition, the connection between the end of the elastic connection body and the connection handle can be achieved by, for example, drilling a hole in the center of the connection plate, passing a bolt protruding from the end of the elastic connection body through this hole, and tightening a nut. Tighten it.

The reinforcing means can be constituted by, for example, ribs that stand up from the back surface of the slide plate and extend radially from the outer periphery of the protrusion. If necessary, a plurality of concentric annular ribs centered on the protrusion can be added to the above ribs. Note that it is preferable that the height of the outer end of the second rib be the same as or slightly lower than the height of the above-mentioned protrusion.

Alternatively, the reinforcing means has a structure in which a fitting recess corresponding to the shape of the protrusion on the back side of the slide plate is formed on the lower surface side of the member to be supported, and the fitting recess is joined to the back side of the slide plate. You can also. [Function 1] Since the present invention is configured as described above, a plurality of them can be used to support the internal floors of various buildings.
Alternatively, it can be used to support the building foundation itself, dampen earthquakes and other shaking, and protect the objects mentioned above. For example, when supporting a floor with this seismic isolation device, connect either the protruding end side or the open end side of the slide plate to the bottom surface of the floor member. In the former case, either a type in which the reinforcing means is constituted by ribs or a type in which a fitting recess on the lower surface side of the member to be supported is fitted into the protrusion can be applied.

Therefore, when using the most advanced type of these, the upper surface of the protrusion and the upper end of the rib are connected to the F side of the plate material constituting the substrate part of the floor member described in 1. Adhesion or other fixing means may be applied as necessary.

In addition, when using the latter type, a fitting recess is formed on the lower surface of the plate that constitutes the member to be supported.
Fit the protrusion into the fitting recess. Fix the fitting with adhesive or the like if necessary. In both of these types, the lower end of the elastic joint is joined to the subfloor. If the lower end of the elastic connector is made of a rubber member, it will not move easily, so it can simply be placed on the subfloor. On the other hand, in the latter case where the floor is supported on the frontage end side of the sliding plate, it is appropriate to use a type of reinforcing means composed of ribs.

In this case, first, the end of the elastic coupling body located near the opening end of the simple tapered recess is coupled to the lower surface of the membrane material constituting the substrate part of the floor member using the coupling means. When the coupling means is a coupling plate formed at the end of the elastic coupling body, it is sufficient to simply place the plate material on this. Of course, it can be fixed with adhesive or the like if necessary.

Normally, all you need to do is place the protruding side of the slide plate on the subfloor. In particular, when an elastic collar is formed at the end of the elastic coupling body, the elastic collar is inserted into the coupling hole from the rear side of the slide plate, and the elastic collar is locked at the rear side edge of the coupling hole. Since the elastic flange mentioned above is bonded to the above-mentioned flooring base, it is well fixed with almost no slipping. By performing any of the above at appropriate intervals, floor members are placed on the entire subfloor. In this way, the floor members are supported by the seismic isolation device of the present invention at appropriate intervals.A desired decorative material is applied to the upper surface of the floor members to complete the floor. Note that it is necessary to leave a slight gap at the outer edge of the area where the floor member is installed, that is, at a position adjacent to a wall surface, etc., and to place a cushion member in that gap. Therefore, the seismic isolation device of the present invention can be installed extremely easily at the required position.

In addition, when the floor is supported by this seismic isolation device, even if vibrations are transmitted to the subfloor due to an earthquake, etc.
Depending on the installation state, the outer surface of the slide plate is in slidable contact with the subfloor, or with the lower surface of the floor member, or with the lower surface of the joint root, and is connected to each other by the elastic joint. Therefore, by sliding relative to each other in response to vibration or rocking, those vibrations or rocking are generally blocked here. By the way, when supporting the foundation of a building with the seismic isolation device of the present invention, for example, the corresponding area is dug, gravel is spread, compacted, and a concrete base is poured on top of it. Then, multiple seismic isolation devices of the present invention are arranged vertically and horizontally at appropriate intervals. As for this arrangement, either the protrusion side or the open end side of the tapered recess may be placed upward, as described above. Then, divide the concrete plates into appropriate numbers and place them on top of the seismic isolation system. That is, as in the case described above,
The protrusion and reinforcing means at the back of the slide plate connect to the base concrete or concrete plate, and the connecting means at the end of the elastic joint connect to the concrete plate or base concrete. The concrete plate mentioned above will be buried below the ground line. Additionally, a cushion member will be placed around the concrete plate to separate it from the surrounding ground. After this, the foundation will be constructed on top of the concrete plate mentioned above. In the above case, the concrete plate may be omitted and the separately formed foundation concrete may be directly supported by the seismic isolation device. In the above case, except for constructing a sliding plate of equivalent strength and using an elastic bonding body with the necessary elasticity and strength, it is basically the same as supporting a floor. The usage of the above foundations and foundation concrete is the same as for general foundations. In this way, a foundation with a seismic isolation effect can be easily obtained.

[Examples] Examples of the present invention will be described below based on the drawings. First, a first embodiment of the present invention will be explained based on FIGS. 1 to 3. As shown in FIGS. 1 to 3, a tapered recess 2 is formed in the center of the slide plate 1 and expands toward the open end. The slide plate l has a circular shape when viewed from the plane or the bottom, and the tapered recess 2 is also circular when viewed from the same direction, that is,
It is constructed in a conical shape that expands outward. Furthermore, a coupling hole 4 is bored in the center of the bottom of the tapered recess 2 through which an elastic coupling column 3 (described later) is inserted, and a short cylindrical portion 5 is raised along the edge of the coupling hole 4. On the back side of the slide plate l, a coupling recess 7 is formed with a depth into which the elastic collar 6 at the lower end of the elastic coupling column 3 sinks by about half of its thickness. By the way, as shown in FIGS. 1 and 2, the elastic coupling column 3 is provided with the elastic collar 6 at its lower end, and bolts 8 and bolts 9 extending in the axial direction at its upper end. It is a cylindrical member. Moreover, the Doki elastic bonding column 3 is molded from chloroprene-based synthetic rubber. Its elasticity and stiffness were determined in this example as appropriate for supporting the floorboard. As shown in FIGS. 1 to 3, the elastic coupling column 3 is inserted into the coupling hole 4 from its upper end, and the elastic collar 6 at its lower end is fitted into the coupling recess 7. Let. Of course, as mentioned above, in an unloaded state, about half of it will be exposed below. Furthermore, as shown in FIG. 1, the length of the elastic coupling column 3 is set so that there is a slight gap between the slide ml and the coupling plate 10, which will be described later, in an unloaded state. Further, the coupling plate 10 is connected to the upper end of the elastic coupling column 3. As shown in FIGS. 1 to 3, the joint 3 has a circular shape with a larger diameter than the slide plate 1, and has a bolt 8 and a nut 9 at the -F end of the elastic joint column 3 in the center. It has a storage recess l1 for storing it, and a bolt hole 1 in its center.
2 was drilled. By inserting the bolt 8 into the bolt hole 12 from below and tightening the nut 9 onto the bolt 8 in the storage recess l1, the coupling plate 10 is coupled to the upper end of the elastic coupling column 3.

The lower surface of the connecting plate 10 and the upper surface of the Ichiki slide plate 1 facing the connecting plate 10 are smooth.

On the other hand, on the rear side (lower surface OlII) of the slide plate l, around the conical protrusion l3 that protrudes due to the configuration of the tapered recess 2, as shown in FIGS. 1 to 3 IQ, Ribs 14, l4, . . . extend radially to the peripheral edge of the slide plate l at angular intervals of 60°. These ribs l4, 14... are on the back surface of the slide slope 1.1 (
Its height is the same as the edge of the conical protrusion l3 above. Since this embodiment is configured as described above, it is suitable for use in supporting the floors of various buildings while attenuating earthquakes and other shaking (of course, other uses are also possible). It can be easily adapted to any type of floor, and its installation is also simple.

First, as in the general case, a flat subfloor l5 is constructed in the target 'U) area that constitutes the floor. The floor that adopts this M-reduction device is constructed by installing the corresponding number of floor members 16, 16, etc. on the floor base 15, and placing decorative materials 17, 17 on top of them.
... shall be attached and configured, and each of the above floor members l6
, 16... will be supported at several locations by the above-mentioned seismic isolation device placed in the subfloor 15 soil. This can be explained in some detail as follows. As shown in FIG. 2, the upper surface of the coupling plate 10 of the seismic isolation device is joined to the lower surface of the floor member 16, and both are fixed with adhesive. On the other hand, the seismic isolation device is constructed by bonding the lower surface of the elastic flange 6 exposed from the lower coupling recess 7 onto the floor subfloor 15, and further shrinking the elastic flange 6 due to the weight of the floor member 16, etc. When the load due to member 16 etc. is large), at the same time,
The lower surface of the circular protrusion 13, that is, the lower end surface of the side wall around the coupling recess 7 and the lower end surfaces of the ribs l4, l4, . . . are also joined onto the floor base 15. , 2. Set up a predetermined number of bundle seismic devices. In this case, the second seismic isolation device is not easily moved even if it is simply placed because the elastic collar 6 having a large coefficient of friction is mainly bonded to the subfloor l5.

Furthermore, at this time, the elastic coupling column 3 is also connected to the floor member 16.
etc. (if the load is large). −1=
The lower surface of the coupling handle 10 and the upper surface of the slide plate 1 are brought into a joined state. This joint is slidable with both smooth surfaces. By the way, for the floor members 16, l6, . . ., leave a portion not to be installed at the outer edge of the installation area, that is, the width of the width from the peripheral wall, and a cushion member is provided at this position. After arranging the floor members 16, 16... in the entire area in this way, the decorative materials 17, 17... are pasted thereon (the decorative materials 17, 17... ...It goes without saying that you can also paste it on top.)

Thus, the floor members l6, 16, . . . are arranged in a seismically isolated state on the floor base 15 by the plurality of seismic isolation devices, and a floor is easily constructed in a predetermined area.

However, the seismic isolation device of this embodiment can be installed extremely easily in the required position. In addition, by using this seismic isolation device, the floor members l6, 16
..., when vibrations are transmitted to the subfloor 15 due to an earthquake etc., the joint @10 supporting the slide plate 1 and the floor member 16 has a relatively small load on each other. In some cases, they are facing each other with a slight gap, and Iiii
As mentioned in I, when a load above a certain level is applied,
Since the mutual sliding surfaces are slidably in contact with each other and are connected by the elastic coupling column 3, the vibrations or oscillations can be suppressed by freely sliding each other in response to the vibrations or oscillations. The motion is blocked here and is no longer transmitted to the upper coupling plate 10 side, that is, to these and other floor members 16, 16, . . . . Since the tapered recess 2 is enlarged toward its opening end and its diameter is set sufficiently large, the slidable range can be made sufficiently large and it can reliably cope with large vibrations and rocking.

Next, a second embodiment of the present invention will be explained based on FIG. Most of this is similar to the first embodiment, so only the different parts will be explained with emphasis.

As shown in FIG. 4, a tapered recess 22 is formed in the center of the slide plate 21, expanding toward the lower open end. The slide plate 2l has a circular shape when viewed from the plane or the bottom, and the tapered recess 22 also has a circular shape when viewed from the same direction.
In other words, it is configured in a conical shape that expands outward. Further, a fixing tube 24 is formed hanging from the inner end surface of the tapered recess 22 in the center thereof, into which the upper end of an elastic coupling body 23, which will be described later, is inserted and fixed. A retaining protrusion 25 is formed in the middle of the inner circumference. As shown in the figure, the elastic coupling body 23 is a member roughly shaped like a gourd with a small diameter in the center. The elastic bonding body 23 is molded from chloroprene-based synthetic rubber. Its elasticity and stiffness were determined in this example as appropriate for supporting the floorboard. Thus, the upper end of the elastic coupling body 23 is inserted into the fixing tube 24, and is fixed there by the slip-out protrusion 25 on its inner circumference.

As shown in FIG. 4, the length of the elastic coupling body 23 is set so that, when the load is small, there is a slight gap between the slide plate 2l and the floor base 26, which will be described later. Note that the lower surface of the slide plate 2l is configured to be a smooth surface. Further, on the upper side of the slide root 21, around the circular protrusion 27 that protrudes due to the configuration of the tapered recess 22, there are radially extending sections at angular intervals of 60 degrees to the peripheral edge of the slide plate 2l. It constitutes extending ribs 28, 28...
These ribs 28, 28... stand up from the upper surface of the slide plate 21, and their height is the same as the upper surface of the conical projection 27.

Since this embodiment is constructed as described above, it is suitable for use in supporting floors and the like of various buildings while attenuating earthquake and other shaking, similar to the first embodiment. First, a flat subfloor 26 is constructed in the area where the floor is to be constructed, in the same way as in the general case. The floor that adopts this seismic isolation device has the corresponding number of floor members 29 on the floor base 26.
, 29... are stretched, and decorative materials 30, 30... are placed thereon.
・ shall be attached to each of the above-mentioned floor members 29, 2.
9... are each supported at several locations by the above-mentioned seismic isolation device placed on the subfloor 26.

This will be briefly explained below.

As shown in FIG. 4, the upper surface of the conical projection 27 of the seismic isolation device, the upper end surfaces of the ribs 28, 28, and the lower surface of the floor member 29 are joined. Fix the above joint with adhesive. On the other hand, in the lower part of the seismic isolation device, the lower end of the elastic coupling body 23 is connected to the floor base 26.
Join on top.

In this way, a predetermined number of seismic isolation devices are set. In this case, the seismic isolation device does not easily move even if it is simply placed in this way, mainly because the lower end of the elastic coupling body 23 having a large coefficient of friction is joined to the subfloor 26.

By the way, the above floor members 29, 29... are... The outer edge of the installation area, that is, a slight width from the surrounding wall, will be left uninstalled, and the cushion member will be placed in this position. After the floor members 29, 29, . . . are disposed over the entire area in this manner, the decorative materials 30, 30, . . . are pasted thereon. Accordingly, the floor members 29, 29, . . . are arranged in a seismically isolated state on the floor base 26 by the plurality of seismic isolation devices, and a floor is easily constructed in a predetermined area.

However, in the event of an earthquake or the like, even if vibrations are transmitted to the subfloor 26, the slide plate 21 and the subfloor 26 may face each other with a slight gap if the mutual load is relatively small. On the other hand, when a load above a certain level is applied, they come into contact with each other so that they can slide freely, and since they are connected to each other by the elastic coupling body 23, they can slide freely in response to vibration or rocking. Therefore, those vibrations or swings are blocked here and are no longer transmitted to members beyond the slide plate 21, ie, the floor members 29, 29, . . . .

Finally, a third embodiment of the present invention will be explained based on FIG. Most of this is the same as the second embodiment, so the explanation will focus only on the different parts. As shown in FIG. 5, a coupling cylinder part 34 having the same small diameter halfway is formed in the center of the slide plate 3, and a tapered recess 32 is formed from its lower end to expand toward the lower open end. . The slide plate 31 has a circular shape when viewed from the top or the bottom, and the tapered recess 32 also has a circular shape when viewed from the same direction, that is, an outwardly expanding conical shape.

Further, as shown in the figure, an elastic coupling body 33 having a roughly gourd shape with a small diameter in the center is constituted. The elastic coupling body 33
is made of chloroprene-based synthetic rubber, and its elasticity and rigidity are determined to be suitable for supporting the floorboard in this example.

The upper end of the elastic coupling body 33 is inserted into the coupling cylinder part 34, and the coupling is fixed with adhesive. As shown in FIG. 5, the length of the neutral bonding body 33 is determined by
Set so that there is a slight gap between 1 and the subfloor 36 described below. Note that the lower surface of the slide plate 3l is configured to be a smooth surface. Since this embodiment is constructed as described above, it is suitable for use in supporting floors and the like of various buildings while attenuating earthquakes and other shaking, similar to the second embodiment. First, a flat subfloor 36 is constructed in the target area that will constitute the floor. Further, as shown in FIG. 5, on the lower surface of the floor member 39 used for the construction of the target floor, joints corresponding to the protrusions 37 protruding from the upper surface of the slide plate 31 are pre-arranged at appropriate intervals. A recess 38 shall be formed in advance. Thus, the above-mentioned seismic isolation device is connected to each of its protruding parts 37 to the joining recesses 38, 38 of the required number of the above-mentioned floor members 39, 39...
... and then bond and fix it by gluing it. After doing so, the floor members 39, 39, . . . are sequentially arranged on the floor base 36 with the seismic isolation device facing down. In this way, the floor members 39, 39... are supported by the seismic isolation device. At this time, in the lower part of the seismic isolation device, the lower end of the elastic coupling body 33 is joined to the subfloor 36. In this case, the seismic isolation device is not easily moved even if it is simply placed in this way because the lower end of the elastic coupling body 33 with a large coefficient of friction is mainly joined to the subfloor 36. By the way, for the floor members 39, 39, etc., a portion not to be installed is left at the outer edge of the installation area, that is, a certain width from the peripheral wall, and a cushion member is provided at this position. After the floor members 39, 39, . . . are arranged in the entire area in this way, the decorative materials 40, 40, . . . are pasted thereon. Thus, the floor members 39, 39, . . . are arranged in a seismically isolated state on the floor base 36 by the plurality of seismic isolation devices, and the floor is easily constructed in a predetermined manner.

Therefore, in the event of an earthquake or the like, even if vibrations are transmitted to the subfloor 36, for the same reason as the second embodiment, the vibrations are blocked and hardly transmitted to the floor members 39, 39, . . . . [Effects of the Invention] According to the present invention, it is possible to easily support the floor or foundation of a building, and when an earthquake or other vibration occurs, vibration or rocking is not caused to the members located above this. , it is possible to provide a seismic isolation effect that significantly blocks the earthquake.

[Brief explanation of the drawing]

The drawings show an embodiment of the invention. 1 to 3 show the first embodiment, in which FIG. 1 is a partially cutaway schematic front view, FIG. 2 is a schematic front sectional view showing a state in which the floor member is supported, and FIG. The figure is a schematic bottom view. FIG. 4 shows a second embodiment, and is a schematic front sectional view showing a state in which a floor member is supported. FIG. 5 shows a third embodiment, and is a schematic front sectional view showing a state in which a floor member is supported. 1, 21.31...Sliding board. 2.22, 32...
・Tapered recess, 3... Elastic coupling column, 4... Coupling hole, 5... Short cylinder part, 6... Elastic collar, 7... Coupling recess, 8... Bolt, 9 ... Nut, 10 ... Binding plate, 11 ... Storage recess, 12 ... Bolt hole, 13,
27... Circular protrusion, l4, 28... Rib, 15, 2
6, 36... Flooring area, 16% 29, 39... Floor member, 17, 30, 40... Decorative material, 23, 33... Elastic bonding body, 24... Fixed tube, 25 ...protrusion,
37...Protrusion part, 38...Joint recessed part.

Claims (1)

[Claims] 1. A tapered recess whose diameter becomes larger toward the opening is formed in the center of the slide plate, and one end of an elastic coupling body is connected to an inner end of the tapered recess, The other end of the elastic connector located near the open end of the recess constitutes a means for connecting to the supported object, and the back surface of the slide plate is reinforced around a protrusion formed on the back surface of the tapered recess. A seismic isolation device that constitutes a means. 2. The seismic isolation device according to claim 1, wherein the elastic coupling body is composed of a cylindrical rubber member. 3. The seismic isolation device according to claim 1, wherein the elastic coupling body is constituted by a roughly gourd-shaped rubber member with a small diameter in the center. 4. One end of the elastic coupling body and the inner end of the tapered recess are connected by forming an elastic collar at the end of the elastic coupling body, and connecting the elastic coupling body from the other end to the slide plate. 2. The seismic isolation device according to claim 1, wherein the seismic isolation device is inserted from the rear side into a coupling hole bored at the inner end of the tapered recess, and the elastic collar is locked at the rear side edge of the coupling hole. 5. One end of the elastic coupling body and the inner end of the tapered recess are connected by fitting the end of the elastic coupling body into a cylinder separately erected at the inner end of the tapered upper recess; 2. The seismic isolation device according to claim 1, wherein the seismic isolation device is constructed by applying a slip-off prevention treatment. 6. The connection between one end of the elastic coupling body and the inner end of the tapered recess is formed into a small diameter cylindrical part having a constant diameter halfway from the inner end of the tapered recess, and the cylindrical part has the 2. The seismic isolation device according to claim 1, wherein the end portions of the elastic joints are fitted together and are prevented from coming off. 7. The means for connecting the support object is connected to the end of the elastic connector at its center, the surface facing the slide plate is a smooth surface, and the back side of the smooth surface is connected. 2. The seismic isolation device according to claim 1, comprising a flat connecting plate. 8. The seismic isolation device according to claim 1, wherein the reinforcing means is constituted by a rib that stands up from the back surface of the slide plate and extends radially from the outer periphery of the protrusion. 9. The reinforcing means according to claim 1, wherein the reinforcing means is constituted by ribs that stand up from the back surface of the slide plate and extend radially from the outer periphery of the protrusion, and a plurality of concentric annular ribs centered on the protrusion. Seismic isolation device. 10. The reinforcing means is configured such that a fitting recess corresponding to the shape of the protrusion on the back side of the slide plate is formed on the lower surface side of the member to be supported, and the fitting recess is fitted into the protrusion. The seismic isolation device according to claim 1.