JP3597510B2 - Seismic isolation door - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a seismic isolation door provided in a building having an intermediate floor seismic isolation structure.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in order to improve the earthquake resistance of a building, a new building has an intermediate floor seismic isolation structure in which a seismic isolation device is incorporated in a middle floor of the building. In addition, the seismic isolation of the existing building is being improved by using the seismic isolation retrofit method to make the existing building an intermediate floor seismic isolation structure. In these cases, seismic isolation devices will be incorporated into the pillars, and the upper structure will be seismically isolated from the seismic isolation devices to form a seismic isolation structure. However, in this case, the seismic isolation device will shift from the seismic isolation device to the non-seismic structure, which is the lower structure, during the earthquake. It is necessary to separate them from each other and make them specifications that absorb the displacement of the roll during an earthquake.
[0003]
In this regard, the gap between the seismic isolation structure and the non-seismic isolation structure cannot be left as it is for aesthetics, crime prevention, or indoor air conditioning. In this publication, a gap between the base-isolated structure part and the non-seismic-isolated structure part is covered by a pair of panel elements arranged in series in the horizontal direction by being connected by a free hinge (provided with a return spring). Further, one panel element is supported by a free hinge (provided with a return spring) so as to be able to swing freely, and by hitting the other panel element, a pair of panel elements is formed in a state where no external force acts. When the panel elements are located on the same plane and an external force is applied, the pair of panel elements bends so as to buckle around a free hinge (provided with a return spring) so that the panel elements can move in any direction. And allow displacement of the roll to be displaced.
[0004]
[Problems to be solved by the invention]
However, in the related art described in Japanese Patent Application Laid-Open No. 2001-32390, the other panel element is merely abutted, and the other panel element is required to be abutted against the part. Accordingly, it can be used as an inner wall because it is provided with an airtight material such as packing, but from the viewpoint of security and airtightness, it cannot be used as a fitting to be installed on the outer wall. There was a problem.
[0005]
Then, this invention was made in order to solve the above-mentioned problem, and makes it a subject to provide the seismic isolation door which can be used as a fitting installed in the outer wall of the building of the middle floor seismic isolation structure.
[0006]
[Means for Solving the Problems]
The invention according to claim 1, which has been made to solve this problem, is provided on a wall attached to a seismic isolation structure of an intermediate floor seismic isolation structure and a non-seismic isolation structure of the intermediate floor seismic isolation structure. The seismic isolation slit separating the separated wall is provided with a frame that follows the relative displacement in the horizontal direction when the seismic isolation structure and the non-seismic isolation structure swing, and through a plurality of pivot means. A seismic isolation door covering the frame with a plurality of panels connected in a row, wherein both panels of both panels are pivotally connected to the frame via the pivot means, and all the pivot means are Is provided inside the middle floor seismic isolation structure, in the gap between the frame portion and the panel, or in the gap between two adjacent panels, and at least one of all the pivot means is provided. The pivot shaft is made of resin and the front is sealed with airtight rubber around each panel. Sealing the frame portion, and characterized.
[0007]
According to a second aspect of the present invention, there is provided the seismic isolation door according to the first aspect, wherein each panel is pivoted in a state in which a vertical projection surface of two adjacent panels has a "-" shape. It is characterized by being held by the urging force of the means.
[0008]
According to a third aspect of the present invention, there is provided the seismic isolation door according to the first or second aspect, wherein the seismic isolation door is sandwiched across an entrance of a drainage passage reaching the outside of the middle floor seismic isolation structure. It is characterized in that, of the two gaskets doubly interposed in the seismic slit, the gasket inside the middle floor seismic isolation structure is a fireproof gasket.
[0009]
That is, in the seismic isolation door of the present invention, after all the panels of all the panels are pivotally mounted on the frame via the pivoting means, all the pivoting means are placed inside the middle floor seismic isolation structure or , Provided in one of the gap between the frame and the panel, or the gap between two adjacent panels to prevent contact from the outside, security against intrusion from outside the frame is secured, In addition, since the frame is sealed with airtight rubber interposed around each panel, airtightness that at least surpasses wind and rain is secured, but the horizontal direction of the seismic isolation structure and non-seismic structure With regard to the relative displacement, the frame portion is allowed to follow the inward relative displacement by folding a plurality of connected panels via a plurality of pivot means, and all the pivot means are The resin pivot provided on at least one of them breaks The frame is allowed to follow relative displacements other than inward, and it is possible to follow the roll during an earthquake while securing security and airtightness. It has added value that can be used as a fitting to be installed on the outer wall of a building.
[0010]
Further, in the seismic isolation door of the present invention, when the plurality of panels connected via the plurality of pivot means are on the same plane, the horizontal of the seismic isolation structure and the non-seismic isolation structure are provided. When the relative displacement in the direction is inward, two panels adjacent to each other may hit due to the impact of an earthquake or the like, and multiple panels may not be folded. If the frame part forcibly follows the horizontal relative displacement of the non-seismic structure part, all or part of the panel will be greatly deformed, but in this respect, in the seismic isolation door of the present invention, If each panel is held by the urging force of the pivoting means in a state where the vertical projection planes of the two panels are in the shape of a square, the relative displacement in the horizontal direction of the seismically isolated structure and the non-seismic structure is inward. Even when the relative displacement is such that multiple panels are folded Is always able to act, it is possible to prevent damage to the panel.
[0011]
In addition, the conventional seismic isolation slit secures waterproofness by interposing one gasket having a waterproof structure, and furthermore, secures fireproofness by interposing two gaskets having fireproof performance, and at the same time, waterproofing. In this respect, in the seismic isolation door of the present invention, two gaskets which are interposed in the seismic isolation slit doubly with the entrance of the drainage passage reaching the outside of the middle floor seismic isolation structure If the inside of the seismic isolation structure on the middle floor is used as a fireproof gasket, the drainage path provided in the seismic isolation slit is larger than the fireproof gasket, as well as the fireproof gasket, ensuring waterproofness. The gasket having the fireproof performance is allowed to be one, which is useful for cost reduction and the like.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. First, the middle floor seismic isolation structure provided with the seismic isolation door of the present embodiment will be described. As shown in FIG. 2, in the middle floor seismic isolation structure 101, the seismic isolation device 103 is incorporated in the pillar 102. In this regard, the structure above the seismic isolation device 103 is the seismic isolation structure 104, and the structure below the seismic isolation device 103 is the non-seismic structure 105.
[0013]
Then, as shown in FIG. 3, in the first floor portion 107 (the portion corresponding to the so-called “seismic isolation layer”) of the middle floor seismic isolation structure 101, the seismic isolation device 103 (FIG. 2) is covered with a fireproof covering 106 divided into two parts in the horizontal direction to protect the seismic isolation device 103 (see FIG. 2) from fire and to protect the seismic isolation structure 104. And the deviation of the roll of the non-seismic structure 105 during an earthquake is allowed.
[0014]
On the other hand, on the outer wall 108, the seismic isolation door 11 and the seismic isolation slit 12 of the present embodiment are provided in order to allow the seismic isolation structure 104 and the non-seismic isolation structure 105 to be displaced in the horizontal motion during an earthquake. ing. Therefore, the seismic isolation door 11 and the seismic isolation slit 12 of the present embodiment will be described below with reference to an example provided around the sash 109.
[0015]
FIG. 4 is a front view of the base isolation door 11 and the base isolation slit 12 provided around the sash 109 (see FIG. 3). FIG. 5 is a cross-sectional view of the base isolation door 11 and the base isolation slit 12 provided around the sash 109. In FIG. 5, reference numeral 106 denotes a fireproof coating, reference numeral 111 denotes a wall material constituting a part of the non-seismic structure 105 (see FIGS. 2 and 3), and reference numerals 112 and 113 denote seismic isolation structures. A steel material and an outer wall material constituting a part of the portion 104 (see FIGS. 2 and 3).
[0016]
FIG. 1 is a sectional view of the seismic isolation door 11 taken along a line AA in FIG. As shown in FIG. 1, the seismic isolation door 11 has two doors 25, 26 ("panel") connected via three hinges 22, 23, 24 (corresponding to "pivot means"). And covers the frame 21 provided in the seismic isolation slit 12. In this regard, one door 25 is provided rotatably with respect to the frame 21 via a hinge 22 attached from the inside of the middle floor seismic isolation structure 101 (see FIGS. 2 and 3). . The other door 26 is provided rotatably with respect to the frame 21 via a hinge 24 attached to a gap between the frame 21 and the door 26. Furthermore, both doors 25 and 26 are provided rotatably with respect to each other via a hinge 23 attached from the inside of the middle floor seismic isolation structure 101 (see FIGS. 2 and 3).
[0017]
The hinge 23 is constantly urged in a direction in which the two doors 25 and 26 are on the same plane by a torsion coil spring provided outside the rotation shaft. Also, the hinge 24 will always rotate the other door 26 in the direction inside the middle floor seismic isolation structure 101 (see FIGS. 2 and 3) by a spring provided inside the rotation shaft. And Thereby, as shown in FIG. 1, the two doors 25 and 26 are held in a state where their cross sections (corresponding to the “vertical projection plane”) have a “C” shape.
[0018]
The hinge shaft (corresponding to the “pivot shaft”) of the hinge 22 is made of resin that can withstand a frequent small earthquake.
[0019]
An airtight rubber 27 is provided between one door 25 and the frame 21, and an airtight rubber 28 is provided between the other door 26 and the frame 21. Further, an airtight rubber 29 is interposed between both doors 25 and 26, respectively. Further, as shown in the cross-sectional view of FIG. 6, airtight rubbers 30 and 31 are interposed between the doors 25 and 26 and the frame 21, respectively. With these, when the two doors 25 and 26 are held in a state of a “C” shape, the gap between the two doors 25 and 26 and the two doors 25 and 26 and the frame The gap with 21 is sealed by hermetic rubber 27, 28, 29, 30, 31.
[0020]
FIG. 7 is a sectional view of the seismic isolation slit 12 taken along line BB in FIG. As shown in FIG. 7, in the seismic isolation slit 12, a lower slit 41 provided at the upper end of the non-seismic structure 105, and an upper slit 42 provided at the lower end of the seismic isolation structure 104. Between them, two gaskets 43, 44 having different cross-sectional shapes are doubly interposed. In this regard, one gasket 43 has a waterproof structure that at least surpasses wind and rain, and the other gasket 44 has fire resistance.
[0021]
The lower slit portion 41 and the upper slit portion 42 are filled with a refractory material, and the lower slit portion 41 has an intermediate floor seismic isolation structure 101 (see FIGS. 2 and 3). ) Are provided at equal intervals, and a groove provided with an inlet 46 of the drainage path 45 is provided between the two gaskets 43 and 44.
[0022]
In FIG. 7, the wall material 111, the outer wall material 114, the inner wall material 115, and the like are “wall surfaces” provided on the non-seismic structure 105 of the middle floor seismic isolation structure 101 (see FIGS. 2 and 3). Is equivalent to In addition, the steel material 112, the outer wall materials 113 and 116, the inner wall material 117, and the like correspond to “wall surfaces” attached to the seismic isolation structure 104 of the middle floor seismic isolation structure 101 (see FIGS. 2 and 3). It is. The frame 21 shown in FIGS. 1 and 6 is formed by forming a space between the lower slit 41 and the upper slit 42 in a frame shape.
[0023]
As described in detail above, in the seismic isolation door 11 of the present embodiment, as shown in FIG. 1, the two doors 25 and 26 are pivoted to the frame 21 via the hinges 22, 23 and 24. All the hinges 22, 23, and 24 are freely provided, and all the hinges 22, 23, and 24 are connected to the inside of the middle floor seismic isolation structure 101 (see FIGS. 2 and 3) or the gap between the frame 21 and the doors 25 and 26. Since the contact from the outside of the middle floor seismic isolation structure 101 (see FIGS. 2 and 3) is cut off by being provided in one of the gaps between the two adjacent doors 25 and 26, the outside intrusion from the frame 21 is prevented. Security that prevents crime is assured. Further, as shown in FIGS. 1 and 6, the frame portion 21 is sealed by airtight rubbers 27, 28, 29, 30, 31 interposed around the doors 25, 26. Airtightness is also ensured.
[0024]
On the other hand, in the case of an earthquake, relative displacements in the horizontal direction of the base isolation structure 104 and the non-base isolation structure 105 are connected via three hinges 22, 23, and 24. The folding of the doors 25 and 26 allows the frame portion 21 to follow the inward relative displacement.
[0025]
The hinge shaft 22 (corresponding to the “pivot shaft”) is made of a resin that can withstand frequent small earthquakes. The frame 21 is allowed to follow a relative displacement other than the inward direction by breaking the dynamic shaft. Specifically, as shown in FIGS. 8 and 9, the resin-made rotating shaft 32 of the hinge 22 is screwed via a nut 33. When the relative displacement in the horizontal direction of the non-seismic structure 105 is large outward, as shown in FIGS. 10 and 11, the resin rotation shaft 32 of the hinge 22 is cut off, thereby opening the door 25. The frame 21 is separated from the frame 21 and follows the horizontal outward relative displacement of the base-isolated structure 104 and the non-base-isolated structure 105. This is performed not only when the relative displacement in the horizontal direction of the seismic isolation structure 104 and the non-seismic isolation structure 105 is outward but also in the case other than inward. After the hinge shaft 32 made of the hinge 22 is cut, as shown in FIG. 12, it can be repaired by replacing the hinge shaft 32 with a new swing shaft 32 made of resin.
[0026]
With these, the seismic isolation door 11 of the present embodiment can keep up with crime prevention and airtightness, and can follow the roll during an earthquake. 3) can be used as fittings to be installed on the outer wall.
[0027]
Further, in the seismic isolation door 11 of the present embodiment, a state in which two doors 25 and 26 connected via three hinges 22, 23 and 24 are on the same plane as in the prior art is assumed. When the relative displacement in the horizontal direction of the seismic isolation structure 104 and the non-seismic isolation structure 105 is inward, two doors 25 and 26 adjacent to each other collide due to an impact at the time of an earthquake or the like. The two doors 25 and 26 may not be folded. In this feared state, when the frame 21 forcibly follows the horizontal relative displacement of the seismic isolation structure 104 and the non-seismic isolation structure 105, the doors All or a part of 25 and 26 will be greatly deformed.
[0028]
However, in the seismic isolation door 11 of the present embodiment, as shown in FIG. 1, each door 25, 26 is connected to each other in a state where the cross-section of two adjacent doors 25, 26 has a “U” shape. Even when the horizontal relative displacement of the seismic isolation structure 104 and the non-seismic isolation structure 105 is inward, the two doors 25 and 26 fold the relative displacement even when the horizontal displacement is inward. The doors 25 and 26 can be prevented from being damaged.
[0029]
In addition, the conventional seismic isolation slit secures waterproofness by interposing one gasket having a waterproof structure, and furthermore, secures fireproofness by interposing two gaskets having fireproof performance, and at the same time, waterproofing. In this regard, in the seismic isolation door 11 of the present embodiment, as shown in FIG. 7, the drainage reaching the outside of the middle floor seismic isolation structure 101 (see FIGS. 2 and 3) is provided. Of the two gaskets 43 and 44 doubly interposed in the seismic isolation slit 12 with the entrance 46 of the road 45 interposed therebetween, the one 44 inside the middle floor seismic isolation structure 101 (see FIGS. 2 and 3) is fireproof. In this case, the drainage path 45 provided in the seismic isolation slit 12 is larger than the gasket 44 having the fire resistance and is larger than the gasket 44 having the fire resistance to provide waterproofness. It is possible to perform the function of, it is allowed to the gasket 44 having a fire resistance to one, help and cost savings.
[0030]
Note that the present invention is not limited to the above-described embodiment, and various changes can be made without departing from the gist of the present invention.
For example, the seismic isolation door 11 of the present embodiment has two doors 25 and 26, but may have three or more doors. Therefore, here, the configuration of the seismic isolation door having four doors will be described. As shown in the cross-sectional view of FIG. 13, the seismic isolation door 51 has four doors connected via five hinges 52, 53, 54, 55, 56 (corresponding to "pivot means"). 57, 58, 59, and 60 (corresponding to “panels”) that cover the frame 21 provided in the seismic isolation slit 12.
[0031]
In this regard, the first door 57 is provided rotatably with respect to the frame portion 21 via the hinge 52 attached from the inside of the middle floor seismic isolation structure 101 (see FIGS. 2 and 3). Have been. The fourth door 60 is rotatably provided with respect to the frame 21 via a hinge 56 attached to a gap between the frame 21 and the door 60. Further, the first door 57 and the second door 58 are turned with respect to each other via a hinge 53 attached from the inside of the middle floor seismic isolation structure 101 (see FIGS. 2 and 3). It is movably provided. Similarly, the third door 59 and the fourth door 60 are also connected to each other via the hinge 55 attached from the inside of the middle floor seismic isolation structure 101 (see FIGS. 2 and 3). It is provided so as to be rotatable with respect to. Further, the second door 58 and the third door 59 can be rotated with respect to each other via a hinge 54 attached to a gap between the second door 58 and the third door 59. It is provided in.
[0032]
The hinge 53 is constantly urged in a direction in which the first door 57 and the second door 58 are flush with each other by a torsion coil spring provided outside the rotation shaft. Similarly, the hinge 55 is constantly urged in a direction in which the third door 59 and the fourth door 60 are on the same plane by a torsion coil spring provided outside the rotation shaft. Further, the hinge 54 is constantly urged in a direction in which the second door 58 and the third door 59 are flush with each other by a torsion coil spring provided outside one of the two rotation shafts. ing. Further, the hinge 56 always rotates the fourth door 60 in the direction inside the middle floor seismic isolation structure 101 (see FIGS. 2 and 3) by a spring provided inside the rotation shaft. I'm trying to get it. As a result, the four doors 57, 58, 59, and 60 are held in a state in which two adjacent cross sections (corresponding to the “vertical projection plane”) each have a “U” shape. .
[0033]
The hinge shaft 52 (corresponding to the "pivot shaft") is made of a resin that can withstand frequent small earthquakes.
[0034]
An airtight rubber 61 is provided between the first door 57 and the frame 21, and an airtight rubber 62 is provided between the fourth door 60 and the frame 21. I have. Furthermore, between the first door 57 and the second door 58, between the second door 58 and the third door 59, between the third door 59 and the fourth door 60, Also, airtight rubbers 63, 64, 65 are interposed respectively. Although not shown, airtight rubber is also interposed between the four doors 57, 58, 59, 60 and the frame portion 21, respectively. Thus, when the four doors 57, 58, 59, and 60 are held in a "-" shape, the gap between the four doors 57, 58, 59, and 60 and the four The gap between the doors 57, 58, 59 and 60 and the gap between the frame portion 21 are sealed by hermetic rubber 61, 62, 63, 64, 65 and the like.
[0035]
The second door 58 and the third door 59 can be folded via two pivot shafts 66 and 67 of the hinge 54 as shown in FIGS.
[0036]
In addition, in the seismic isolation door 11 of the present embodiment, in order to allow the frame portion 21 to follow a relative displacement other than inward, a resin material capable of withstanding a frequent small earthquake is used for the hinge 22. In this regard, the screw 50 for attaching the hinge 22 to the frame portion 21 or the door 25 in place of the rotating shaft of the hinge 22 is made of a resin that can withstand frequent small earthquakes. (See FIGS. 8 to 12).
[0037]
【The invention's effect】
In the seismic isolation door of the present invention, after all of the panels at both ends are pivotally mounted on the frame via the pivot means, all the pivot means are connected to the inside of the middle floor seismic isolation structure or to the frame. It is provided in one of the gap between the panel and the panel, or the gap between two adjacent panels to prevent the contact from the outside, so that the security to prevent the invasion of the outside from the frame is secured. Because the frame is sealed with airtight rubber interposed around each panel, at least airtightness that can withstand wind and rain is secured, but the horizontal relative position of the seismic isolation structure and the non-seismic structure is maintained. Regarding the displacement, the frame portion is allowed to follow the inward relative displacement by folding the plurality of connected panels through the plurality of pivot means, and at least one of all the pivot means is provided. Inward by breaking the plastic pivot provided on one thing The frame is allowed to follow the relative displacement outside, and it is possible to follow the roll during an earthquake while securing security and airtightness. It has added value that can be used as a fitting for installation.
[0038]
Further, in the seismic isolation door of the present invention, when the plurality of panels connected via the plurality of pivot means are on the same plane, the horizontal of the seismic isolation structure and the non-seismic isolation structure are provided. When the relative displacement in the direction is inward, two panels adjacent to each other may hit due to the impact of an earthquake or the like, and multiple panels may not be folded. If the frame part forcibly follows the horizontal relative displacement of the non-seismic structure part, all or part of the panel will be greatly deformed, but in this respect, in the seismic isolation door of the present invention, If each panel is held by the urging force of the pivoting means in a state where the vertical projection planes of the two panels are in the shape of a square, the relative displacement in the horizontal direction of the seismically isolated structure and the non-seismic structure is inward. Even when the relative displacement is such that multiple panels are folded Is always able to act, it is possible to prevent damage to the panel.
[0039]
In addition, the conventional seismic isolation slit secures waterproofness by interposing one gasket having a waterproof structure, and furthermore, secures fireproofness by interposing two gaskets having fireproof performance, and at the same time, waterproofing. In this respect, in the seismic isolation door of the present invention, two gaskets which are interposed in the seismic isolation slit doubly with the entrance of the drainage passage reaching the outside of the middle floor seismic isolation structure If the inside of the seismic isolation structure on the middle floor is used as a fireproof gasket, the drainage path provided in the seismic isolation slit is larger than the fireproof gasket, as well as the fireproof gasket, ensuring waterproofness. Therefore, a single gasket having fireproof performance is allowed, which contributes to cost reduction and the like.
[Brief description of the drawings]
FIG. 1 is a sectional view of a seismic isolation door according to an embodiment of the present invention.
FIG. 2 is a diagram illustrating a seismic isolation structure of an intermediate floor seismic isolation structure provided with a seismic isolation door according to an embodiment of the present invention.
FIG. 3 is a diagram illustrating an appearance of an intermediate floor seismic isolation structure provided with a seismic isolation door according to an embodiment of the present invention.
FIG. 4 is a front view of a base isolation door and a base isolation slit according to an embodiment of the present invention.
FIG. 5 is a cross-sectional view of a base-isolated door and a base-isolated slit according to an embodiment of the present invention (including a part of an intermediate floor base-isolated structure).
FIG. 6 is a vertical sectional view of a base isolation door according to an embodiment of the present invention.
FIG. 7 is a sectional view of a seismic isolation slit according to an embodiment of the present invention.
FIG. 8 is a front view of a hinge (having a rotating shaft made of resin) of the seismic isolation door according to the embodiment of the present invention.
FIG. 9 is a sectional view of a hinge (provided with a resin rotary shaft) of the seismic isolation door according to one embodiment of the present invention.
FIG. 10 is a front view of the seismic isolation door according to the embodiment of the present invention when a hinge-made resin rotation shaft is broken.
FIG. 11 is a plan view of the seismic isolation door according to the embodiment of the present invention when a hinge-made resin rotation shaft is broken.
FIG. 12 is a front view of the seismic isolation door according to the embodiment of the present invention when a hinge-made rotating shaft is replaced.
FIG. 13 is a sectional view of a seismic isolation door according to another embodiment of the present invention.
FIG. 14 is a cross-sectional view showing the movement of the hinge when the second door and the third door are folded in the seismic isolation door according to another embodiment of the present invention.
FIG. 15 is a cross-sectional view showing the movement of the hinge when the second door and the third door are folded in the seismic isolation door according to another embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 Seismic isolation door 12 Seismic isolation slit 21 Frame part 22 Hinge 24 Hinge 25 Door 26 Door 27 Hermetic rubber 28 Hermetic rubber 29 Hermetic rubber 32 Resin-supporting shaft 43 Waterproof gasket 44 Fire resistant Gasket 101 Intermediate floor seismic isolation structure 104 Seismic isolation structure 105 Non-seismic isolation structure 111 Wall material of non-isolation isolation structure 112 Steel material of seismic isolation structure 113 Exterior wall material of isolation system

Claims (3)

The seismic isolation slit separating the wall attached to the seismic isolation structure of the middle floor seismic isolation structure and the wall attached to the non-seismic isolation structure of the middle floor seismic isolation structure, A seismic isolation door that is provided with a frame that follows relative displacement in the horizontal direction when the non-seismic structure swings, and covers the frame with a plurality of panels connected via a plurality of pivoting means. At
Among all the panels, both ends are pivotally mounted on the frame via the pivot means, and all the pivot means are provided inside the middle floor seismic isolation structure or the frame and the panel. Or a gap between two adjacent panels, and at least one of all the pivot means is made of a resin, and an airtight rubber is provided around each panel. Wherein the frame portion is sealed. The seismic isolation door according to claim 1,
A seismic isolation door, characterized in that each panel is held by the urging force of said pivoting means in a state where the vertical projection planes of two adjacent panels are in the shape of a square. The seismic isolation door according to claim 1 or claim 2,
Of the two gaskets that are doubly interposed in the seismic isolation slit with the entrance of the drainage passage reaching the outside of the intermediate floor seismic isolation structure, the two gaskets inside the intermediate floor seismic isolation structure are A seismic isolation door characterized by a fireproof gasket.

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