JP2007008639A - Landing device for base isolation elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevator device for a base isolation building eliminating a level difference of a floor surface of a getting on/off passage and having an inexpensive and simple constitution. <P>SOLUTION: In the landing device, a hoistway is formed over a base construction body 2 and an base isolation construction body 4 supported on the base construction body 2 through an base isolation device and the getting on/off passage provided between the elevator landing of the construction body and the car stopped at the landing is interlocked with relative displacement between both construction bodies and is deformed. The landing device is provided with a movable floor at the construction body having one end provided on a fixed body at the construction body side to form a floor surface at the construction body side of the getting on/off passage and the other end provided with a first comb tooth projected to the hoistway side; a hoistway side movable floor 26 having one end provided on a fixed body at the hoistway to form a floor surface at the hoistway side of the getting on/off passage and the other end provided with a second comb tooth projected to the construction body side and engaged with the first comb tooth; and an under-floor support plate 29 provided between the fixed body at the construction body and the fixed body at the hoistway side below the movable floor 25 at the construction body and the movable floor 26 at the hoistway side and curved toward a downward side. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an elevator landing device installed in a base-isolated building.

  A base-isolated building composed of a base building constructed on the ground and a base-isolated building supported by a base-isolating device at the top of this base building A horizontal relative displacement occurs between the base building and the base-isolated building. In an elevator for a base-isolated building in which a hoistway is formed so as to run vertically from the base building of the base-isolated building to the base-isolated building, both of the above-mentioned buildings (base building and base-isolated building) generated during an earthquake The relative position between the two buildings is linked with the relative displacement between the two buildings, because the relative displacement between the two buildings is changed due to the relative displacement between the two bodies. A deforming boarding / exiting passage is provided at a landing on a predetermined floor.

  In a conventional seismic isolation building elevator device provided with such a boarding / exiting passage, one end is fixed to the building and the other end projects from the hoistway side, and one end In which the floor of the boarding passage is formed by a hoistway side movable floor plate in which the other end protruding to the building side is always superposed on the upper surface of the building side floor plate. It has been proposed (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 2004-155582

  In the elevator landing device for the seismic isolation building described in Patent Document 1, since the hoistway side movable floor board is superposed on the lower surface of the building side floor board, a step is always formed on the floor surface of the boarding passage. For this reason, there is a problem that when a user passes through the getting-on / off passage, or when the user pulls a baggage with a caster or a cart loaded with the baggage, the baggage is caught on a step. In addition, when adopting a structure in which the space between the floor surface and the side wall of the entrance / exit passage is closed with a movable baseboard, the structure of the movable baseboard needs to be complicated, and it takes time for production and installation, and costs It was a factor inviting high. In addition, since the structure of the movable skirting board is complicated, there is also a problem that a gap is easily formed between the floor surface of the boarding passage and the movable skirting board when an earthquake occurs.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an elevator apparatus for a seismic isolation building that eliminates a step on the floor surface of an entrance / exit passage and has an inexpensive and simple configuration. That is.

  The elevator landing apparatus for a seismic isolation building according to the present invention includes a base building and a seismic isolation building supported by the base building through a seismic isolation device, and a hoistway is formed, and the elevator landing of the building In the elevator system for seismically isolated buildings, where the boarding / alighting path provided between the car and the car stopped at this landing is deformed in conjunction with the relative displacement between the two buildings, one end is provided on the building-side stationary body The building-side movable floor is provided with the first comb teeth protruding to the hoistway side at the other end and the one end is provided on the hoistway-side fixed body. A hoistway-side movable floor that forms a hoistway-side floor surface of the passage and is provided with a second comb tooth that protrudes toward the building body and meshes with the first comb teeth at the other end, and the building-side movable floor and the hoistway-side movable floor The building side fixed body and ascending below Provided over between the roadside stationary body, in which a floor supporting plate which is curved downward.

  In this invention, a hoistway is formed over the base building and the base-isolated building supported by the base building via a base-isolating device, and between the elevator landing of the building and the car stopped at this landing In the elevator apparatus for a seismic isolation building in which the entrance / exit passage is deformed in conjunction with the relative displacement between the two buildings, one end of the entrance / exit passage is provided on the building side fixed body, and the building side floor surface of the entrance / exit passage is provided. While forming, the other end part is provided with the first comb teeth projecting toward the hoistway side, and the one end part is provided on the hoistway side fixed body to form the hoistway side floor surface of the entrance / exit passage A hoistway side movable floor provided with a second comb tooth projecting toward the building body and meshing with the first comb teeth at the other end, and the building side fixed body and the hoistway side below the building side movable floor and the hoistway side movable floor Provided between fixed bodies, below Headed by construction and the further comprising a floor support plate which is curved, with eliminating the step of floor boarding passage, can be simply constructed at low cost.

  In order to explain the present invention in more detail, it will be described with reference to the accompanying drawings. In addition, in each figure, the same code | symbol is attached | subjected to the part which is the same or it corresponds, The duplication description is simplified or abbreviate | omitted suitably.

Embodiment 1 FIG.
1 is a longitudinal sectional view conceptually showing an elevator for a base-isolated building, FIG. 2 is a diagram for explaining the situation of the earthquake-proof building elevator shown in FIG. 1, and FIG. 3 is a diagram according to Embodiment 1 of the present invention. FIG. 4 is a detailed view of a main part thereof, FIG. 5 is a plan view of the elevator device for a base-isolated building according to Embodiment 1 of the present invention, and FIG. FIG. 7 is a diagram corresponding to FIG. 5, FIG. 8 is a diagram corresponding to FIG. 3, FIG. 9 is a diagram corresponding to FIG. 5, FIG. 10 is a diagram corresponding to FIG. FIG. 10 is a diagram corresponding to FIG. 3 for explaining another situation at the time of an earthquake different from the case shown in FIG. 9.

  1 and 2, the base-isolated building is composed of a base building 2 built on the ground 1 and a base-isolating building 4 supported via a base-isolating device 3 on the top of the base building 2. Is done. And the hoistway 5 is provided so that it may pass through from the base building 2 to the seismic isolation building 4, and between the upper part of the base building 2 in the hoistway 5 and the lower part of the seismic isolation building 4 is provided. That is, a plurality of movable hoistway frames 6 are arranged at predetermined intervals from each other over a predetermined distance above and below the height of the seismic isolation device 3. Moreover, the boarding / alighting path 7 is provided between the movable hoistway frame 6 and the elevator halls of the two buildings 2 and 4 corresponding to the installation height of the movable hoistway frame 6.

  Also, in the hoistway 5, a car guide rail 9 that guides the elevator car 8 is lifted from the bottom of the base building 2 to the upper part of the seismic isolation building 4 from the bottom to the top. Standing up. The car guide rail 9 is connected to each movable hoistway frame 6 provided from the upper part of the base building 2 to the lower part of the seismic isolation building 4. On the other hand, the counterweight guide rail 11 that guides the lifting and lowering of the counterweight 10 is erected from the bottom of the hoistway 5 to the top and from the top of the base building body 2, similarly to the car guide rail 9. The lower part of the seismic isolation building 4 is connected to each movable hoistway frame 6.

  A machine room 12 is provided above the seismic isolation building 4 above the hoistway 5, and a hoisting machine having a drive sheave 13 is installed in the machine room 12. A main rope 14 that suspends the car 8 and the counterweight 10 in a fishing bottle shape is wound around the driving sheave 13 of the hoisting machine, and the driving rope 13 rotates to move the main rope 14. As a result, the car 8 and the counterweight 10 move up and down in the hoistway 5 in opposite directions. A shock absorber 15 is erected on the bottom surface of the hoistway 5 so as to face the car 8 and the counterweight 10.

  In the seismic isolation building having such a configuration, when an earthquake occurs, as shown in FIG. 2, a horizontal relative displacement occurs between the base building 2 and the seismic isolation building 4 with the seismic isolation device 3 as a boundary. In addition, both the guide rails 9 and 11 standingly arranged in the hoistway 5 are comprised so that it may be displaced according to the relative displacement between the said both buildings 2 and 4 which generate | occur | produce at the time of an earthquake. That is, each part of both guide rails 9 and 11 arranged from the upper part of the base building 2 to the lower part of the base-isolated building 4 is inclined according to the relative displacement generated between the two buildings 2 and 4. Thus, even when an earthquake occurs, both guide rails 9 and 11 are configured to continue from the top to the bottom of the hoistway.

Further, the movable hoistway frame 6 connected to both the guide rails 9 and 11 is also tilted together with the both guide rails 9 and 11 when an earthquake occurs. For this reason, the entrance / exit passage 7 provided between the two buildings 2 and 4 and the movable hoistway frame 6 is configured to be deformed in response to the displacement of the movable hoistway frame 6 when an earthquake occurs. .
Below, the structure of the boarding / alighting passage 7 provided between the predetermined landing of the buildings 2 and 4 and the movable hoistway frame 6, that is, the car 8 stopped at the landing will be described in detail.

  3 to 5, the boarding passage 7 provided on a predetermined floor of the base-isolated building forms a hoistway side entrance which is one side of the boarding passage 7 on the car 8 side, that is, the hoistway 5 side. The hoistway side entrance / exit three-way frame 16 is provided on the movable hoistway frame 6 via a support member or the like. The movable hoistway frame 6 has a landing door 17 that opens and closes the hoistway side doorway of the boarding passage 7 formed by the hoistway side doorway three-way frame 16, and a threshold 18 that guides the lower end portion of the landing door 17. Is provided. On the other hand, on the side of the building 2 or 4 (hereinafter referred to as “building 2” in the embodiment) facing the hoistway side entrance / exit three-way frame 16, the building side forming the building side entrance which is the other side of the entrance / exit passage 7. An entrance / exit three-way frame 19 is provided.

  And the building side movable ceiling board 20 arrange | positioned in the upper edge part of the building side entrance / exit three-way frame 19 and the hoistway side movable ceiling 21 arrange | positioned in the upper edge part of the hoistway side entrance / exit three-side frame 16 of the entrance / exit passage 7 are provided. A ceiling surface is formed. The building-side movable ceiling plate 20 has a building-side end rotatably provided on the building-side entrance / exit three-way frame 19, and a hoistway-side end projecting toward the hoistway-side entrance / exit three-sided frame 16. It is configured to be freely displaceable. On the other hand, the hoistway side movable ceiling 21 is composed of a plurality of, for example, three portal stainless steel plates. That is, the hoistway side movable ceiling 21 is slid inside the first hoistway side movable ceiling plate 21a and the first hoistway side movable ceiling plate 21a slidably fitted inside the building side movable ceiling plate 20. It is composed of a second hoistway side movable ceiling plate 21b that is movably fitted, and a third hoistway side movable ceiling plate 21c that is slidably fitted inside the second hoistway side movable ceiling plate 21b. It has a three-layer structure. Then, the hoistway side movable ceiling 21 expands and contracts at the portions slidably fitted to each other when an earthquake occurs, and is displaced according to the shaking of the earthquake. The hoistway side end of the third hoistway side movable ceiling plate 21c is pivotally attached to the hoistway side entrance / exit three-way frame 16 via a horizontal axis.

  In addition, the expansion and contraction connection which consists of the pantograph operation mechanism arrange | positioned in the horizontal direction in the two places on the right and left above the building-side movable ceiling plate 20 and the hoistway-side movable ceiling plates 21a to 21c that form the ceiling surface of the entrance / exit passage 7 A link 22 is provided. Both ends of the telescopic connection link 22 are pivotally supported on the building-side movable ceiling plate 20 and the third hoistway-side movable ceiling plate 21c by pivot pins 23a and 23b. The pivot pins 23c and 23d at the intermediate portion of the telescopic connection link 22 are pivotally supported by the first and second hoistway side movable ceiling plates 21a and 21b, respectively. A long hole (not shown) into which the pivot pins 23c and 23d are inserted is formed in the pivotal support portion of the second hoistway side movable ceiling plate 21b.

  Moreover, each side wall surface of the boarding / alighting passage 7 is a side edge part of the building side vertical frame 19a of the building side entrance / exit three-way frame 19 that forms the side edge part of the building side entrance / exit of the boarding / exiting passage 7 and the side entrance of the hoistway side entrance / exit Are formed by a movable side wall plate 24 made of a single spring steel plate, stainless steel plate or the like provided between the hoistway side entrance / exit three-way frame 16 and the hoistway side vertical frame 16a. And each movable side wall board 24 is curved so that it may protrude toward the outer side of the boarding passage 7 across the building side edge part and the hoistway side edge part, and a building side edge part is the building side vertical frame 19a. In addition, the hoistway side end is pivotally provided on the hoistway side vertical frame 16a. In Embodiment 1, the building side end of the movable side wall plate 24 is pivoted to the building side vertical frame 19a, and the hoistway side end is pivoted to the hoistway side vertical frame 16a. What is necessary is just to arrange | position between the building side vertical frame 19a and the hoistway side vertical frame 16a so that it may curve toward the outer side of the boarding / alighting passage 7, and to form the side wall surface of the boarding / alighting passage 7, for example, one end part is construction The body-side fixed body may be configured such that the other end is pivotally provided on the hoistway-side fixed body.

  The floor surface of the entrance / exit passage 7 is arranged at the lower edge of the building side entrance / exit three-way frame 19 to form the building side movable floor 25 forming the building side floor surface of the entrance / exit passage 7 and the hoistway side entrance / exit side three-way frame 16. By the hoistway-side movable floor 26 that is arranged at the edge and forms the hoistway-side floor of the boarding passage 7, the upper surfaces of the hoistway-side movable floors 26 are arranged flush with each other. The building-side movable floor 25 has a building-side end rotatably provided on the building 2 or the building-side fixed body, and a hoistway-side end projecting toward the hoistway-side entrance / exit three-way frame 16, It is configured to be freely displaceable in the direction. And, at the end of the hoistway side of the building-side movable floor 25, innumerable comb teeth 25a (first comb teeth) arranged at equal intervals over the frontage direction are provided so as to protrude toward the hoistway side, The comb teeth 25a are provided so that the tip end protruding to the hoistway side is displaceable in the frontage direction so that the counter tip is rotatable on a rotation shaft having an axial direction in the vertical direction.

  On the other hand, the hoistway side movable floor 26 is provided on the sill 18 whose hoistway side end is one of the hoistway side fixed bodies via a horizontal axis 27 or the like, and the building side end is provided on the building side entrance three-way frame 19. It protrudes toward you. And the innumerable comb teeth 26a (second comb teeth) arranged at equal intervals in the frontage direction project to the building side at the end of the hoistway side movable floor 26 in the frontage direction, and the building side movable floor 25 It is provided so as to mesh with the comb teeth 25a. The comb teeth 26a, like the comb teeth 25a, have a countershaft portion as a rotating shaft having an axial direction in the vertical direction so that the tip portion protruding toward the building can be displaced in the frontage direction. It is provided rotatably. Further, the comb teeth 25a of the building-side movable floor 25 and the comb teeth 26a of the hoistway-side movable floor 26 are engaged with each other with a considerable distance in the direction of the getting-on / off passage 7, and when the earthquake occurs, the building-side movable floor 25 and the hoistway-side movable floor are engaged. Even if the meshing distance with 26 is minimized, the floor surface of the entrance / exit passage 7 is configured to be surely and sufficiently secured.

  Further, below the building-side movable floor 25 and the hoistway-side movable floor 26, a single spring steel plate, stainless steel plate or the like is provided between the building body 2 and the support body 28 connected to the movable hoistway frame 6. An underfloor support plate 29 for reinforcement is provided. The underfloor support plate 29 is curved so as to project downward, and its hoistway side edge is rotatably provided on the support 28 via a horizontal axis 30 provided in the frontage direction. Yes. Further, the end of the underfloor support plate 29 on the side of the building is rotatable through the slide mechanism 31 provided in the building 2 and the horizontal axis 32 provided in the frontage direction of the slide mechanism 31 and the building 2 It is provided so as to be movable in the frontage direction. The slide mechanism 31 includes an L-shaped attachment plate 31a having a lower end fixed to the building body 2 such that the upper end protrudes toward the hoistway, and a rail 31b provided on the attachment plate 31a. The moving body 31c is guided by the rail 31b and slides in the frontage direction, and the horizontal axis 32 is provided on the moving body 31c.

Next, the operation of the hall device having such a configuration when an earthquake occurs will be described.
6 and 7 show a state in which the entrance / exit passage 7 is shortened the most due to the shaking of the earthquake, and the building side entrance / exit three-way frame 19 and the lift passage side entrance / exit three-way frame 16 are closest to each other. 6 and 7, when the earthquake occurs, the building-side movable floor 25 and the hoistway-side movable floor 26 approach each other, so that the amount of meshing of the comb teeth 25a and 26a increases and the boarding / alighting passage 7 is shortened. At this time, the tip of the comb teeth 25a of the building-side movable floor 25 is not in contact with the hoistway-side movable floor 26, and the tip of the comb teeth 26a of the hoistway-side movable floor 26 is not in contact with the building-side movable floor 25. In this way, the length of each comb tooth 25a and 26a and the length of the gap between the comb teeth 25a or 26a are set.

  On the other hand, the underfloor support plate 29 is in a state of being further curved as compared with the normal time due to the shortening of the entrance / exit passage 7. At this time, the building side edge and the hoistway side edge rotate around the horizontal axes 32 and 30 in accordance with the elastic deformation of the underfloor support plate 29. The underfloor support plate 29 is configured to return to its original state when the shaking of the earthquake is settled without causing plastic deformation even when the boarding passage 7 is in the state shown in FIG. .

  8 and 9 show a case where the boarding / exiting passage 7 is most elongated due to the shaking of the earthquake, and the building side entrance / exit three-way frame 19 and the hoistway side entrance / exit three-side frame 16 are most separated. 8 and 9, when the earthquake occurs, the building-side movable floor 25 and the hoistway-side movable floor 26 are separated from each other, so that the meshing amount of the comb teeth 25a and 26a is reduced and the getting-on / off passage 7 is extended. As described above, the lengths of the comb teeth 25a and 26a are set so that the floor surface of the entrance / exit passage 7 can be surely and sufficiently secured even when the meshing amount of the comb teeth 25a and 26a is minimized.

  On the other hand, the underfloor support plate 29 is in a state in which the curvature is larger than that in the normal state due to the extension of the passenger passage 7. At this time, the building side edge and the hoistway side edge rotate around the horizontal axes 32 and 30 in accordance with the elastic deformation of the underfloor support plate 29. The underfloor support plate 29 is regulated so as to be always curved in a downward convex direction even when the boarding passage 7 is in the state shown in FIG. That is, the underfloor support plate 29 is set such that the length from the building side edge to the hoistway side edge is longer than the linear distance between the horizontal axes 32 and 30 that change due to the shaking of the earthquake.

  FIG. 10 shows a state in which displacement in the lateral direction (frontage direction) occurs in the boarding / alighting passage 7 due to the shaking of the earthquake. In FIG. 10, when an earthquake occurs, if a displacement in the frontage direction occurs between the building-side movable floor 25 and the hoistway-side movable floor 26, the comb teeth 25a and 26a are on the building side while maintaining the state where the tips are engaged. It follows the displacement in the frontage direction between the movable floor 25 and the hoistway side movable floor 26. That is, the comb teeth 25a and 26a operate so as to maintain a parallel state by rotating the building side of the comb teeth 25a and the hoistway side of the comb teeth 26a, respectively.

  On the other hand, when a relative displacement in the frontage direction occurs between the building-side movable floor 25 and the hoistway-side movable floor 26, the under-floor support plate 29 is interlocked with the hoistway-side movable floor 26 by the operation of the slide mechanism 31. Then move in the frontage direction. In the first embodiment, the slide mechanism 31 is provided at the building side edge of the underfloor support plate 29. However, the slide mechanism 31 is provided at the edge of the hoistway so that the underfloor support plate 29 is provided when an earthquake occurs. It goes without saying that the same effect can be obtained even if the structure is configured to move in the frontage direction in conjunction with the building 2.

  According to the first embodiment of the present invention, even when the getting-on / off passage 7 is deformed by an earthquake, the comb teeth 25a and 26a follow the displacement of the building-side movable floor 25 and the hoistway-side movable floor 26, It becomes possible to absorb the displacement in the direction. In addition, the building-side movable floor 25 and the hoistway-side movable floor 26 are configured so that the upper surface serving as the floor surface of the boarding passage 7 is flat throughout. For this reason, it is possible to prevent a user who passes through the getting-on / off passage 7 from crawling or a cart, baggage, or the like from being caught on a step, and a wheelchair user can easily pass through. Since the entire floor surface of the entrance / exit passage 7 is configured to be flat, the structure of the movable baseboard is simplified even when adopting a configuration in which the space between the floor surface and the side wall of the entrance / exit passage 7 is closed by the movable baseboard. can do.

  Further, since the reinforcing underfloor support plate 29 is provided below the building-side movable floor 25 and the hoistway-side movable floor 26, it is safe in terms of strength. The underfloor support plate 29 has a function of receiving a fallen object from the gap between the comb teeth 25a and 26a, and prevents a user passing through the getting-on / off passage 7 from looking down from the gap between the comb teeth 25a and 26a. It also has a blindfold function.

1 is a longitudinal sectional view conceptually showing an elevator for a base-isolated building. It is a figure explaining the condition at the time of the earthquake of the elevator for seismic isolation buildings shown in FIG. BRIEF DESCRIPTION OF THE DRAWINGS It is a side view of the elevator apparatus for base-isolated buildings in Embodiment 1 of this invention. It is a principal part detail drawing of the landing apparatus of the elevator for seismic isolation buildings shown in FIG. BRIEF DESCRIPTION OF THE DRAWINGS It is a top view of the landing apparatus of the elevator for seismic isolation buildings in Embodiment 1 of this invention. FIG. 4 is a diagram corresponding to FIG. 3 for explaining the situation at the time of an earthquake. FIG. 6 is a diagram corresponding to FIG. 5 for explaining the situation at the time of an earthquake. FIG. 4 is a diagram corresponding to FIG. 3 for explaining another situation during an earthquake. FIG. 6 is a diagram corresponding to FIG. 5 for explaining another situation during an earthquake. FIG. 4 is a diagram corresponding to FIG. 3 for explaining another situation during an earthquake.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Ground 2 Base building body 3 Seismic isolation apparatus 4 Seismic isolation building body 5 Hoistway 6 Movable hoistway frame 7 Boarding passage 8 Car 9 Car guide rail 10 Counterweight 11 Counterweight guide rail 12 Machine room 13 Drive sheave 14 Main rope 15 Shock absorber 16 Hoistway side entrance three-way frame 16a Hoistway side vertical frame 17 Door of door 18 Sill 19 Building side doorway three way frame 19a Building side vertical frame 20 Building side movable ceiling plate 21 Hoistway side movable ceiling 21a-21c First- 3rd hoistway side movable ceiling board 22 telescopic connection link 23a-23d pivot pin 24 movable side wall board 25 building side movable floor 25a, 26a comb tooth 26 hoistway side movable floor 27, 30, 32 horizontal axis 28 support body 29 underfloor support board 31 Slide mechanism 31a Mounting plate 31b Rail 31c Moving object

Claims (5)

  A hoistway is formed across the base building and the base-isolated building supported by the base building via a seismic isolation device, and is provided between the elevator landing of the building and the car stopped at the landing. In an elevator hall device for a seismic isolation building in which the entrance / exit passage is deformed in conjunction with the relative displacement between the two buildings, one end is provided on the building-side fixed body to form the building-side floor surface of the entrance / exit passage And, at the other end, the building-side movable floor provided with the first comb teeth protruding toward the hoistway, and the one end provided on the hoistway-side fixed body to form the hoistway-side floor of the boarding passage. A hoistway-side movable floor provided at the other end with a second comb tooth projecting toward the building body and meshing with the first comb tooth, and the building-side fixed body below the building body-side movable floor and the hoistway-side movable floor And between the hoistway side fixed bodies Provided, hall device seismic isolation building elevator, characterized in that a floor support plate which is curved downward.   The underfloor support plate is rotatably provided at one end on the building-side fixed body and at the other end on the hoistway-side fixed body, and one of the one end and the other end is provided on the building-side fixed body. Alternatively, the elevator apparatus for a seismic isolation building according to claim 1, wherein the landing apparatus is provided so as to be movable in a frontage direction with respect to the hoistway side fixed body.   The underfloor support plate is regulated so as to be always curved downward when the boarding passage is deformed in conjunction with the relative displacement between the two buildings. The elevator equipment for the seismically isolated building described.   The first comb teeth and the second comb teeth are provided with anti-tip portions that are rotatable so that the tip portions meshing with each other can move in the frontage direction. A base device for an elevator for a base-isolated building according to any one of the above. 5. The elevator landing device for a seismic isolation building according to claim 1, wherein the building-side movable floor and the hoistway-side movable floor are arranged so that the upper surfaces thereof are flush with each other.

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