JPH076276B2 - Seismic isolation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention provides seismic isolation for instructing foundations of various buildings, floors in buildings, or various devices or articles while protecting them from earthquakes and other vibrations. It relates to the device.

[Prior Art] Conventional seismic isolation devices basically support the floor.
It is proposed that legs are formed at the bottom of the plate and rubbers are attached to the lower ends of these legs.

In addition, there is a seismic isolation device in which an elastic material is arranged between the foundation and the structure.

No seismic isolation device to support the foundation has been proposed.

[Problems to be solved by the invention] The former is integrated with the floor and cannot be freely used for seismic isolation of various objects. Furthermore, it is not possible to sufficiently deal with horizontal shaking due to the mechanism.

Similarly, the latter cannot be freely applied to various objects.

The present invention easily supports a base of a building itself in addition to a floor of a building, or various seismic isolation-required objects such as various kinds of articles or devices, while easily supporting the advanced seismic isolation action. It is an object of the present invention to provide a device capable of giving

[Means for Solving the Problems] The gist of the configuration of the present invention is that a tapered recess having a smaller diameter toward the inner end is formed in the center of a slide plate, and at least the depth of the tapered recess is greater than the depth of the tapered recess. A long elastic column is configured, one end of the elastic column is connected to the inner end of the tapered recess of the slide plate, the other end is connected to a connecting means, and one of them is fixedly connected and the other is connected. The slide restricting means is formed on the mating side, slidably joined within the restricting range, and the reinforcing means is formed on the back surface of the slide plate around the projection formed on the back surface of the tapered recess. It is a seismic device.

The slide plate can freely adopt various shapes such as a square shape, a polygonal shape, and a circular shape when viewed from the plane direction. However, a circle that is uniform in both horizontal directions is most suitable. The slide plate may be molded of plastic or made of metal, depending on the weight of the object supported thereby.

The surface of the slide plate is a smooth surface. This can be realized with a free configuration. For example, it can be formed by coating the surface with a tetrafluoroethylene resin.

The opening angle of the tapered recess is preferably determined in consideration of how much horizontal amplitude such as an earthquake can be tolerated. If possible, if the upper or lower end of the elastic column vibrates relatively horizontally in the largest expected earthquake, the outer end of the elastic column may not easily contact the opening end of the tapered recess. good.

As described above, one end of the elastic column and the inner end of the tapered recess of the slide plate and the other end of the elastic column are coupled with a coupling means for coupling to a coupling object. In the case of a simple connection, the other is a slidable connection.

That is, for example, the coupling target is a floor substrate, the coupling means with the floor substrate is a plate member facing the slide plate,
Further, when the slide regulating means is formed in the plate member and one end of the elastic column is slidably joined in the regulating means, for example, as the regulating means, a limiting hole is formed in the plate member. When the plate member is joined to the floor substrate, one end of the elastic column may be slidably joined to the upper surface of the floor substrate which appears to form the bottom surface in the limiting hole. The plate member is formed, for example, in a disk shape having a diameter larger than that of the slide plate, the limiting hole is formed in the central portion thereof, and a short cylindrical start-up is formed on the periphery of the limiting hole. You can also do it. By doing so, even when the horizontal swing becomes large, the sliding movement of the one end of the elastic column can be reliably regulated in the limiting hole.

On the other hand, in this case, the other end of the elastic column is joined and fixed to the inner end of the tapered recess of the slide plate. For example, a coupling cylinder may be provided at the inner end of the tapered concave portion, and the other end of the elastic column may be inserted into this so as to be fixed with an adhesive or the like.

Further, the coupling means for coupling to the coupling object may be composed of an elastic plate combined with a plurality of slide plates. Then, for example, as restricting means to be configured in this, a limiting hole is formed at the center of each position facing the plurality of slide plates. It is arbitrary whether or not a short cylindrical rise is formed at the edge of the limiting hole.

In this case, the method of connection with one end of the elastic column is the same as in the above example. The method of connecting the other end of the elastic column and the inner end of the tapered recess of the slide plate is also the same.

In the case where the object to be combined is a floor base, the connecting means with this is the surface of the target itself, that is, the surface of the floor base in the above example, and one end of the elastic column is directly connected to the surface. It is fixed on the upper surface, or a slide restricting means is formed on this, and slidably joined thereto.

As the slide restricting means, a circular limited recess is formed on the upper surface of the floor base in the above example on the surface of the coupling object itself, and one end of the elastic column is slidably joined to the bottom surface thereof.

Further, for example, when one end of the elastic column is slidably joined to the inner end of the tapered recess of the slide plate, the slide restricting means is formed at the inner end of the tapered recess.

As the slide restricting means, for example, a circular limiting recess is formed at the center of the inner end of the tapered recess. Then, one end of the elastic column is slidably joined to the bottom of the column. Of course, the diameter of the limited recess is set to be sufficiently larger than the diameter of the end of the elastic column joined to the bottom of the limited recess. More theoretically, the diameter is set to a range that allows sliding of the end of the elastic column.

Further, the slide restricting means may be composed of, for example, a large-diameter recess formed at the center of the inner end of the tapered recess and a small-diameter recess formed at the center thereof.

In this case, a small diameter column portion slightly longer than the depth of the small diameter recess is formed at one end of the elastic column, and the tip of the small diameter column part is slidably joined to the bottom surface of the small diameter recess.

In the case of the above two examples, the other end of the elastic column is fixed to the coupling means to be coupled. For example, when the object to be combined is a floor substrate, it is fixed on the surface.

By the way, the elastic column is formed of, for example, a columnar rubber member. The material of the rubber member is not limited to a particular one, but it is preferable to mold it with synthetic rubber having appropriate elasticity. It is appropriate to prepare those having various elasticity in appropriate stage divisions and use them properly according to the weight of the object supported by this.

The elastic column is set on the slide plate,
In the case of a small load, for example, it is appropriate that the slide plate and the coupling object or the coupling means for the coupling object have such a length and elasticity that there is a slight gap between the body surface portions. is there. Alternatively, even in the case of a considerably large load, the length can be set so that there is a slight gap at the above position.

The reinforcing means can be constituted by, for example, a rib that rises from the rear surface of the slide plate and radially extends from the outer periphery of the protrusion that protrudes rearward as the tapered recess is formed.
In some cases, a plurality of concentric ring-shaped ribs centering on the protrusion may be added to the ribs.

[Operation] Since the present invention is configured as described above, a plurality of it is used to support the floor inside it in various buildings,
Alternatively, it can be used to support the foundation of the building itself, dampen earthquakes and other sway, and protect the object.

For example, when supporting the floor with this seismic isolation device, either the protrusion side or the open end side of the slide plate is connected to the lower surface of the floor member.

Taking the former case as an example, first, the upper surface of the protrusion and the reinforcing means, for example, the upper end of the rib are connected to the lower surface of the plate material forming the base plate portion of the floor member. If necessary, adhesion or other fixing means will be provided.

Each end of the elastic column is fixed to either the inner end of the tapered recess of the slide plate or the floor base, and the other end is provided with a slide restricting means to be slidably joined within that range.

For example, a connecting cylinder is formed at the inner end of the tapered recess of the slide plate, and a plate member or an elastic plate that is connected to the floor base is formed.
Alternatively, when the limited recess is formed on the upper surface of the floor base,
The upper end of the elastic column is inserted into and fixed to the coupling cylinder protruding from the inner end of the tapered recess of the slide plate, and the lower end is slidably joined to the bottom surface of the limiting hole of the plate member or elastic plate. To do. Alternatively, it is slidably joined to the bottom surface of the limited recess.

By performing the above at appropriate intervals, the floor members are arranged on the entire floor substrate.

Thus, the floor members are supported by the seismic isolation device of the present invention at appropriate intervals. A desired decorative material is attached to the upper surface of the floor member to complete the floor. It should be noted that it is necessary to leave a slight gap at the outer edge of the installation area of the floor member, that is, at a position adjacent to the wall surface or the like, and to dispose the cushion member in the gap.

Therefore, the seismic isolation device of the present invention can be installed in a required position very easily.

In addition, when the floor is supported by this seismic isolation device, even when vibration is transmitted to the floor base due to an earthquake or the like,
The seismic isolation can be performed very efficiently.

In the case of a relatively small earthquake, the horizontal shaking
In the case of the main sway, the lower end of the elastic column slides relatively with the slide plate on the bottom surface of the limiting hole or the limiting recess according to the vibration, so that the seismic isolation effect can be obtained almost completely. Further, when the vibration becomes large and the lower end of the elastic column comes into contact with the edge of the limiting hole or the limiting recess due to the sliding motion, the lower end of the elastic column engages with the edge of the limiting hole or the like. Further, the relative swinging of the slide plate beyond this can be performed within the range of the elastic stretchability of the elastic column. In this way, when the vibration is small, the sliding motion of the lower end of the elastic column can be performed, and when the vibration is large, an effective seismic isolation can be performed by the elastic elasticity of the elastic column in the range exceeding the slide regulation range.

Also, with respect to vertical vibrations, the elastic column is made sufficiently long so that the slide plate and the floor base etc. do not contact each other, so that the elastic expansion and contraction function of this elastic column in the axial direction functions. Ensure seismic action. Alternatively, when the coupling means for coupling with the coupling object is constituted by the elastic plate, even if the slide plate is in contact with the elastic plate, the elasticity can ensure the seismic isolation.

By the way, when the foundation of a building is supported by the seismic isolation apparatus of the present invention, for example, the corresponding area is dug down, gravel is spread, compacted, and a concrete foundation is placed on it. Then, a plurality of seismic isolation devices of the present invention are arranged vertically and horizontally at appropriate intervals. As for the manner of this arrangement, as in the case described above, either the protrusion side or the opening end side of the tapered recess may be upward. Then, the appropriate number of concrete boards are placed on the seismic isolation device. That is, as in the case described above,
For example, a concrete plate is supported by a projection or the like behind the slide plate, and the plate member or the like is arranged on the base concrete,
Then, one end of the elastic column is fixed to the inner end of the tapered recess of the slide plate, and the other end is slidably joined on the base concrete in the limited hole of the plate member or the like. . Up to the concrete plate, it will be buried below the ground line. Furthermore, a cushion member is arranged around the concrete plate in order to cut an edge from the surrounding ground.

Then, the foundation is constructed on the concrete board.

Further, in the above case, the concrete plate may be omitted and the separately formed basic concrete may be directly supported by the seismic isolation device.

In the above cases, in addition to using a slide plate having a corresponding strength and using an elastic column having necessary elasticity and strength,
Basically, it is the same as when supporting the floor.

Usage of the foundation and concrete for foundation is the same as that of general foundation.

In this way, a foundation having a seismic isolation effect can be easily obtained.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

First, a first embodiment of the present invention will be described with reference to FIGS.

As shown in FIGS. 1 to 3, a tapered recess 2 is formed in the center of the slide plate 1 so as to expand toward the opening end. The slide plate 1 is formed in a circular shape when viewed from a plane or a bottom surface, and the tapered concave portion 2 is also formed in a circular shape when viewed from the same direction, that is, a conical shape that expands outward.

At the center of the inner end of the tapered recessed portion 2, a coupling cylinder 4 into which the upper end of an elastic column 3 to be described later is inserted is hung, and an elastic column is inserted in the middle of the inner periphery of the coupling cylinder 4. The locking projection 5 is provided to perform the retaining function of 3.

Further, on the back side (upper surface side) of the slide plate 1, as shown in FIGS. 1 and 2, as shown in FIGS. Ribs 7, 7 ... Which extend in the radial direction to the peripheral edge of the slide plate 1 are formed at angular intervals of. The ribs 7, 7 ... Stand up from the rear surface (upper surface) of the slide plate 1 and have the same height as the upper surface of the conical projection 6.

Further, on the front surface (lower surface) of the slide plate 1, a regulation disc 8 having a larger diameter than this is faced. A circular limiting hole 9 for limiting the sliding range of the lower end of the elastic column 3 is bored in the central portion of the regulating disc 8 and a regulating short cylinder 10 is raised at the edge thereof.

The upper surface of the regulation disc 8 and the lower surface of the slide plate 1 facing the regulation disc 8 are formed as smooth surfaces.

By the way, as shown in FIG. 1, the elastic column 3 is a substantially columnar member and is made of chloroprene synthetic rubber. Its elasticity and stiffness were determined in this example to be suitable for supporting the floorboard. Further, the length thereof is set so that there is a gap between the lower surface of the slide plate 1 and the upper surface of the restriction disc 8 when the slide plate 1 is coupled to the slide plate 1 as described later. The lower surface of the elastic column 3 is a smooth surface.

Then, as shown in FIG. 1, the elastic column 3 has its upper end inserted into the coupling cylinder 4 projecting from the inner end of the tapered recess 2 of the slide plate 1. The upper end of the elastic column 3 is
By locking the outer periphery thereof to the locking projection 5, it is fixed in the coupling cylinder body 4.

In this embodiment, since it is constructed as described above, it is suitable to be used for supporting the floors of various buildings while attenuating earthquakes and other shaking (of course, other uses). Moreover, it can be easily adapted to any floor and its installation is easy.

First, as in the general case, a flat floor base 11 is formed in a target area forming a floor. The floor that employs this seismic isolation device has a corresponding number of floor members 12, 12 ...
, And the decorative materials 13, 13 ... are pasted on it, and each floor member 12, 12 ... is supported at several places by the seismic isolation device arranged on the floor base 11. It is something to do.

The details are as follows.

As shown in FIG. 1, the upper surface of the conical protrusion 6 and the upper end of the rib 7 of the slide plate 1 of the seismic isolation device are joined to the lower surface of the floor member 12, and they are fixed with an adhesive. Further, the regulating disk 8 is arranged on the floor base 11 so as to be centered on the slide plate 1. This is fixed on the floor base 11 with an adhesive or the like.
Then, the lower end of the elastic column 3 is inserted into the limiting hole 9 of the regulation disk 8 and the floor base 11 which appears like the bottom surface thereof is provided here.
It is slidably joined to the upper surface of.

At this time, as described above, since the elastic column 3 is configured to be sufficiently long, there is a gap between the lower surface of the slide plate 1 and the upper surface of the regulation disc 8. The slide plate 1 when an extremely large load is applied and due to an extremely large swing.
The gap may disappear when is swung relatively largely in the horizontal direction.

It is to be noted that the floor members 12, 12, ... Leave the non-installed portion at the outer edge of the installation region, that is, a portion of the peripheral wall, and the cushion member is arranged at this position.

After arranging the floor members 12, 12 ... In the whole area in this manner, the decorative materials 13, 13 ... are attached thereon (the decorative materials 13, 13 ... are attached beforehand on the floor members 12, 12 ... Needless to say, too).

Thus, the floor members 12, 12 ... Are arranged in a seismically isolated state on the floor base 11 by the plurality of seismic isolation devices, and the floor is simply constructed in a predetermined area.

The seismic isolation device of this embodiment is as described above, and as described above, can be installed extremely easily at a required position.

Further, when the floor members 12, 12, ... Are supported by the seismic isolation device as described above, the seismic isolation can be performed very efficiently even when vibration is transmitted to the floor base 11 due to an earthquake or the like. .

In the case of a comparatively small earthquake, when the horizontal shaking is the main vibration component, the lower end of the elastic column 3 corresponds to the shaking, that is, the bottom surface of the limiting hole 9 of the restriction disk 8, that is, ,
By sliding the upper surface of the floor base 11 shown here relatively, the slide plate 1 and the members above it can almost completely obtain the seismic isolation effect.

In addition, when the swing becomes large and the lower end of the elastic column 3 comes into contact with the restriction short tube 10 which is erected on the edge of the limiting hole 9, the elastic column is in the range of larger swing. Three
The lower end of is engaged with the restriction short tube 10, and the slide plate 1 and other members can be swung within the range where the elastic column 3 is elastically stretchable. In this case, since the elastic column 3 is tilted obliquely, the gap between the slide plate 1 and the regulation disc 8 becomes narrow or comes into contact. When they contact each other, they both slide with each other during the swing. In this way, an effective seismic isolation can be performed by the sliding swing of the lower end of the elastic column 3 in a small swing range, and by elastic elasticity of the elastic column 3 in a large swing range.

Further, with respect to vertical vibration, a gap is provided between the lower surface of the slide plate 1 and the regulating disc 8 so that they do not contact each other, so that the elastic column 3 elastically expands and contracts in the axial direction. The seismic isolation effect can be secured.

Next, a second embodiment of the present invention will be described with reference to FIGS. 4 and 5. Since most of this is similar to the first embodiment, only different parts will be described.

As shown in FIG. 4, this embodiment is different only in the elastic regulating plate 28 arranged on the floor base 31. This elastic regulation plate 28
As shown in Fig. 5, there are nine slide plates on this.
It is configured so that 21, 21, ... Are installed at equal intervals, and nine limiting holes 29, 29 ... Are bored vertically and horizontally. Further, the elastic regulating plate 28 is formed to have a thickness twice or more that of the regulating disc 8.

In the figure, 22 is a tapered recess, 24 is a coupling cylinder, and 25 is a locking projection.

Since this embodiment is configured as described above, it is suitable to be used for supporting floors and the like of various buildings while attenuating earthquakes and other shaking, similarly to the first embodiment.

As for usage, only parts different from those in the first embodiment will be described.

First, a required number of the elastic regulating plates 2 are installed on the floor base 31 in the installation area.
Install 8, 28 ...

Then, the limiting holes 29, 29 of the elastic regulating plates 28, 28 ...
, And the lower ends of the elastic columns 23, 23 ... Set in the slide plates 21, 21 ... In the same manner as in the first embodiment. In this example, since the thickness of the elastic regulating plates 28, 28 ... Is twice or more that of the regulating disc 8 as described above, the lower surfaces of the slide plates 21, 21 ... And the elastic regulating plates 28, 28. The upper surfaces of ... will be slidably joined to each other, and the elastic columns
The lower ends of the 23, 23 ... Are not immediately joined to the upper surface of the floor base 31 which appears like the bottom surfaces of the limiting holes 29, 29.

In this way, the slide plates 21, 21 ...
Etc., and the floor members 32, 32 are arranged while being fixed to the upper surfaces of the conical protrusions 26, 26 ... Of the slide plates 21, 21 ... And the upper ends of the ribs 27, 27. The decorative material 33 is attached to the upper surface.

Also in this case, the seismic isolation effect can be obtained by the same operation as in the first embodiment.

The seismic isolation in the horizontal direction is obtained by the mutual sliding movement of the slide plate 1 and the elastic regulating plate 28. When the swing becomes large and the lower end of the elastic column 23 comes into contact with the edge of the limiting hole 29, the lower end of the elastic column 23 will be locked here, so further swing is The elastic expansion and contraction of the elastic column 23 also works.

If a large load is applied, the elastic regulating plate 28
Contracts, and the lower end of the elastic column 23 also comes into contact with the floor base 31 appearing in the limiting hole 29. Therefore, when swinging, the lower end of the elastic column 23 also slides. In this way, the seismic isolation effect is generated by performing the sliding motion while sufficiently supporting the load.
When the vibration is larger than this, it is the same as described above.

In this way, in a small horizontal swing, the seismic isolation effect is obtained by the sliding movement of the elastic regulating plate 28 and the slide plate 1, or in addition to this, the sliding movement of the lower end of the elastic column 23 provides the seismic isolation effect. The elastic expansion and contraction of the column 23 obtains a seismic isolation effect.

The seismic isolation in the vertical direction can be obtained by the elasticity of the elastic regulation plates 28, 28 ... And by the elasticity of the elastic columns 23.

Finally, a third embodiment of the present invention will be described with reference to FIG.

As shown in FIG. 6, the slide plate 41 is provided with a circular downward tapered recess 42 having a diameter gradually decreasing toward the inner end, and a circular large-diameter recess 44 is formed at the center of the inner end thereof. Further, a circular small-diameter recess 45 is formed in the center thereof. The lower surface of the slide plate 41 has a smooth surface.

The small-diameter recess 45 has an appropriate diameter so that the tip of the small-diameter column portion 48 of the elastic column 43, which will be described later, can freely slide in the event of a small earthquake.

Further, on the rear surface side (upper surface side) of the slide plate 41, in the radial direction up to the peripheral end of the slide plate 41 at an angular interval of 60 ° around the conical protrusion 46 that protrudes due to the configuration of the tapered recess 42. It forms the extending ribs 47, 47 .... These ribs 47,
47 are raised from the rear surface (upper surface) of the slide plate 41, and the height thereof is the same as the upper surface of the conical protrusion 46.

Separately, an elastic column 43 having a small-diameter column portion 48 slightly longer than the depth of the small-diameter concave portion 45 at the upper end is formed. Above small diameter column
The edges of 48 are smooth. The length of the elastic column 43 is determined so that the lower end of the elastic column 43 slightly protrudes from the lower end of the slide plate 41 when the elastic column 43 is set on the slide plate 41 as described later. The elastic column 43 is made of chloroprene synthetic rubber, and its elasticity and rigidity are determined to be suitable for supporting the floor board in this example as well.

The elastic column 43 has the upper end of the small-diameter column portion 48 at the upper end slidably joined to the inner end of the small-diameter recess 45 of the slide plate 41.

Since this embodiment is configured as described above, it is suitable to be used for supporting floors and the like of various buildings while attenuating earthquakes and other shaking, as in the first and second embodiments. is there.

First, a flat floor base 51 is formed in a target area of the floor.

Then, the seismic isolation devices are sequentially arranged on the floor base 51 at appropriate intervals. For each seismic isolation device, as shown in FIG. 6, it is only necessary to join the lower end of the elastic column 43 to the floor base 51. Since the lower end of the elastic column 43 is made of rubber, it has a very large coefficient of friction, and after being set as described above, it does not move even if an earthquake is encountered.

Floor members 52, 52 ... Are placed on these seismic isolation devices. The floor members 52, 52 ... Have their lower surfaces and the conical projections 46 of the slide plate 41.
The upper surface of the rib and the upper end of the rib 47 are joined and bonded with an adhesive to be fixed on the seismic isolation device.

Thus, the floor members 52, 52 ... Are supported by the seismic isolation device.

By the way, the floor members 52, 52, ... Are to be provided with cushion members at the positions where the outer edges of the installation regions, that is, a part of the width from the peripheral wall, are left uninstalled.

After arranging the floor members 52, 52 ...
The decorative material 53, 53 ... Is stuck on it.

Then, the floor members 52, 52 ... Are arranged in a seismically isolated state on the floor base 51 by the plurality of seismic isolation devices, and the floor is easily configured in a predetermined area.

In the event of an earthquake or the like, even if vibration is transmitted to the floor base 51, this seismic isolation device will block that vibration, and
Almost no transmission to 52, 52 ...

Horizontal vibration or rocking is an elastic column as long as it is small.
Since the small-diameter column portion 48 at the upper end of 43 freely slides on the inner end of the small-diameter concave portion 45 of the slide plate 41, the vibration can be almost completely cut off here.

If the limit is exceeded, the small diameter column at the top of the elastic column 43
A part of the outer periphery of 48 engages with the edge of the small-diameter recess 45, and this time the elastic column 43 elastically expands and contracts to perform seismic isolation.

When a horizontal vibration or swing exceeding this level occurs, the elastic column 43 tilts obliquely and disengages from the edge of the small-diameter recess 43 and moves to the large-diameter recess 44. There is also. In this case, the outer periphery of the elastic column 43 is engaged with the edge portion,
The elastic expansion and contraction enables seismic isolation.

With respect to the vibration in the vertical direction, the elastic isolation of the elastic column 43 in the axial direction allows the seismic isolation.

[Effect of the Invention] According to the present invention, a floor of a building or a foundation can be easily supported, and when an earthquake or other vibration occurs, vibration or swinging is applied to a member positioned above this. , It is possible to add a seismic isolation effect that significantly blocks. In particular, the seismic isolation device having an extremely large damping rate is obtained by combining both the seismic isolation action by the vertical sliding movement and the elastic isolation of the elastic column.

[Brief description of drawings]

The drawings show embodiments of the present invention. 1 to 3 show the first embodiment, FIG. 1 is a partially cutaway schematic front view of the seismic isolation device in a state of supporting a floor member, and FIG. 2 is the seismic isolation device. Schematic plan view, FIG. 3 is the second
It is a partial notch schematic bottom view of a figure. FIG. 4 and FIG. 5 show the second embodiment.
FIG. 5 is a schematic front sectional view showing a state of supporting a floor member, and FIG. 5 is a schematic plan view of an elastic regulating plate. FIG. 6 shows a third embodiment and is a schematic front sectional view showing a state of supporting a floor member. 1, 21, 41 ... slide plate, 2, 22, 42 ... tapered recessed portion, 3, 23, 43 ... elastic column, 4, 24 ... coupling cylinder body 5,
25 ... Locking protrusion, 6, 26, 46 ... Conical protrusion, 7, 27, 47
...... Ribs, 8 ...... Regulating discs, 9, 29 ...... Limit holes, 10 ......
Regulated short cylinder, 11, 31, 51 …… Floor base, 12, 32, 52 …… Floor member, 13, 33, 53 …… Decorative material, 28 …… Elasticity regulation plate, 44 ……
Large diameter recess, 45 …… Small diameter recess, 48 …… Small diameter column.

Claims (6)

[Claims] 1. A slide plate is provided with a tapered concave portion having a smaller diameter toward the inner end, and an elastic column at least longer than the depth of the tapered concave portion is formed in the center of the slide plate. Within the restriction range, the inner end of the tapered recess of the plate and the other end of the plate are fixedly connected, and one of them is fixedly connected, and the other is a slide restricting device on the other side of the connection. A seismic isolation device that is slidably joined to the base plate, and has reinforcing means around the projection formed on the back surface of the tapered recess on the back surface of the slide plate. 2. The coupling means for coupling to the coupling object is a plate member facing the slide plate, and the plate member is coupled to the coupling object as the slide restricting means, and one end of the elastic column is disposed therein. When inserted in
One end of the elastic column can be slidably joined to the surface to be joined that appears to form the bottom surface, and a limiting hole that limits the sliding range is provided, and the surface facing the slide plate is The slide plate is configured as a plate member, and further, the inner end of the tapered recess of the slide plate and the other end of the elastic column are provided with a coupling cylinder protruding from the inner end of the tapered recess.
The seismic isolation device according to claim 1, wherein the other end of the elastic column can be inserted and fixed thereto. 3. The plate member is formed in a disk shape having a diameter larger than that of the slide plate, the limiting hole is located at the center thereof, and the peripheral edge of the limiting hole is raised in a short tubular shape. The seismic isolation device according to claim 2. 4. An elastic plate, which is provided with a plurality of slide plates facing the coupling means to be coupled and each of which has a slide regulating means at the center of the facing position, wherein the slide regulating means includes: When one end of the elastic column is inserted into the elastic plate after the elastic plate is coupled to the coupling target, the one end of the elastic column can be slidably joined to the surface of the coupling target that appears to form the bottom surface of the elastic column. The slide plate has a limiting hole that limits the sliding range, and the surface facing the surface of the slide plate is a smooth elastic plate, and the inner end of the tapered recess of each slide plate is The seismic isolation device according to claim 1, wherein the other end of the elastic column is formed by projecting a coupling cylinder at the inner end of the tapered recess, and the other end of the elastic column can be inserted and fixed to the coupling cylinder. 5. The coupling means for coupling to the coupling object is the surface of the coupling object itself, and the slide regulating means is slidably joined to the surface of the coupling object itself at the bottom surface thereof. And forming a circular limiting recess that limits the sliding range, and the inner end of the tapered recess of the slide plate and the other end of the elastic column project a coupling cylinder into the inner end of the tapered recess. Set up
The seismic isolation device according to claim 1, wherein the other end of the elastic column can be inserted and fixed thereto. 6. A slide restricting means is formed at an inner end of the tapered recess of the slide plate, and the slide restricting means is formed at a large-diameter recess formed at the center of the inner end of the tapered recess and further at the center thereof. And a small diameter column portion slightly longer than the depth of the small diameter recess portion is formed at one end of the elastic column, and the tip of the small diameter column portion is slidably joined to the bottom surface of the small diameter recess portion, The seismic isolation device according to claim 1, wherein the other end of the pillar is joined and fixed to the surfaces to be joined as joining means.