JP2000072351A - Base isolation elevator structure for middle base isolation layer building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To carry passengers in the event of a large earthquake in a base isolation elevator set in a building having a base isolation layer in the middle by dividing an elevator shaft to the shaft of the middle base isolation layer part, and upper and lower shafts thereof, and providing a rail attachment and detachment mechanism in each divided part. SOLUTION: The elevator shaft of a base isolation elevator passing the base isolation layer K of a middle base isolation layer building is divided into three of a shaft 1A belonging to the middle base isolation layer part K, and shafts 1B, 1C belonging to an upper structure N and a lower structure M. The shafts 1B, IC are horizontally moved in the state isolated from the shaft 1A together with the corresponding structures in the event of an earthquake so as to follow the interlayer deformation. A guide rail is also divided into three guide rails 2A-2C in the same manner, and a rail attachment and detachment mechanism is provided in each divided part. The rail attachment and detachment mechanism is driven to lay the guide rail 2A of the shaft 1A in the connected state to the guide rails 2B, 2C of the other shafts 1B, 1C.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of a seismic isolation elevator installed in an "intermediate seismic isolation building" having a seismic isolation layer in the middle layer, passing through the seismic isolation layer.

[0002]

2. Description of the Related Art When an elevator E passing through a seismic isolation layer K is installed in an intermediate seismic isolation layer building having a seismic isolation layer K as an intermediate layer as shown in FIG. It is necessary that the “seismic isolation elevator” be provided with a seismic isolation structure (buffer mechanism) that follows the interlayer deformation S (horizontal deformation) of the upper structure N and the lower structure M sandwiching the seismic isolation layer K. That is, if the guide rails G of the elevator do not follow the interlayer deformation, the elevator cage T is sheared into a guillotine state as shown in FIG. 13, and it is not possible to secure the safe use of the load.

As a countermeasure, a conventional seismic isolation elevator structure is known in which an elevator shaft is fixed to and suspended from an upper structure N of a seismic isolation layer, and a lower floor shaft follows a deformation of an upper floor. The configuration is adopted (for example, refer to the invention described in Japanese Patent Publication No. 5-49595).

[0004]

However, according to the conventional suspension type seismic isolation elevator structure described above, the same relative position as the seismic isolation layer K between the elevator shaft and the elevator shaft is provided at each entrance of the lower floor. Horizontal deformation occurs. Therefore,
In order to avoid collision with the shaft, it is essential to provide a wide seismic isolation clearance C (Fig. 12). Incidentally, the seismic isolation clearance C needs to have a width equivalent to 50 cm on only one side of the elevator shaft.

[0005] In addition, at the seismic isolation clearance C around the elevator shaft on the lower floor M, in order to ensure the safety of passengers, a fence for preventing fall and a pier as a platform for getting on and off are required at the entrance of each floor. Becomes Furthermore, from the viewpoint of plan planning, the space of the seismic isolation clearance C becomes a dead space on all lower floors, resulting in a wasteful structure.

Accordingly, an object of the present invention is to prevent the function and safety of passenger transport as an elevator from being impaired even in the event of a large earthquake, and to ensure the safety of passengers including the vicinity of a landing hall. An object of the present invention is to provide a seismic isolation elevator structure for an intermediate seismic isolation building capable of effectively utilizing a space around a shaft on a lower floor in the same manner as a normal building.

[0007]

According to a first aspect of the present invention, there is provided a seismic isolation elevator structure for an intermediate seismic isolation building according to the first aspect of the present invention.
It is divided into a shaft in the middle seismic isolation layer, a shaft of the upper structure and a shaft of the lower structure, and the shaft in the middle seismic isolation layer secures seismic isolation clearance during horizontal movement during an earthquake. That the guide rails installed in each of the elevator shafts are also divided by a common dividing plane with each of the divided shafts, and that a rail attaching / detaching mechanism is provided at each of the divided locations; The mechanism is a position sensor that detects the position of the elevator cage,
Drive control based on the direction sensor that detects the moving direction and the detection signal of the earthquake sensor, the guide rail in the shaft of the middle seismic isolation layer part is fixed in the shaft of the upper structure according to the position and moving direction of the elevator car It is characterized in that interlayer deformation is allowed while being connected to a set guide rail or a guide rail fixed in a shaft of a lower structure.

According to a second aspect of the present invention, in the seismic isolation elevator structure of the intermediate seismic isolation layer building according to the first aspect, the rail attaching / detaching mechanism strongly fixes the connection state when the guide rail is connected and disconnects the connection state when the guide rail is disconnected. A fixing / separation mechanism for loosening the fixed state of the slab and facilitating the separation operation is provided.

[0009]

1 to 11 show an embodiment of a base-isolated elevator structure for an intermediate base-isolated building according to the present invention. First, FIG. 1 shows a structure of an elevator shaft of a base-isolated elevator that passes through a base-isolated layer K of an intermediate base-isolated building. The elevator shaft includes a shaft 1A belonging to the middle seismic isolation layer portion K and a shaft 1B belonging to the superstructure N.
And a shaft 1C belonging to the lower structure M. Therefore, the shaft 1B belonging to the upper structure N and the shaft 1C belonging to the lower structure M move horizontally together with the respective structures during an earthquake, and the middle seismic isolation layer portion K
Freely follows the interlayer deformation due to the cut edge of the shaft 1A belonging to. On the shaft 1A of the middle seismic isolation layer K,
Seismic isolation clearances C and C 'for horizontal movement during an earthquake are secured. C ′ is the seismic isolation clearance of the guide rail.

Next, FIGS. 2A and 2B show a configuration of a guide rail installed in each elevator shaft and an allowable form of interlayer deformation. The guide rail is also constituted by a combination of the three guide rails 2A, 2B, 2C divided by the common dividing plane with each of the above-mentioned divided shafts 1A, 1B, 1C. The upper structure shaft 1B and the lower structure shaft 1C have guide rails 2B,
2C is fixedly installed. On the other hand, the guide rail 2A belonging to the shaft 1A of the middle seismic isolation layer portion K is in a free installation state, and as shown in FIG.
A structure that allows interlayer deformation in a state of being connected to a guide rail 2C fixed in the inside or a state of being connected to a guide rail 2B fixed in a shaft 1B of the upper structure N as shown in FIG. 2B. Have been.

FIG. 3 shows an outline of a seismic isolation elevator structure obtained by combining the structure of the elevator shaft shown in FIG. 1 and the structure of the guide rails shown in FIGS. 2A and 2B. FIG. 4 shows an embodiment in which the guide rail 2A belonging to the shaft 1A of the middle seismic isolation layer K is connected to the guide rail 2C in the shaft 1C of the lower structure as an embodiment at the time of an earthquake, and the interlayer deformation S is allowed. FIG. 5 shows an embodiment in which the guide rail 2A belonging to the shaft 1A of the middle seismic isolation layer K is connected to the guide rail 2B in the shaft 1B of the upper structure. .

As means for connecting and switching the above-mentioned guide rails, a rail attaching / detaching mechanism having the structure shown in FIGS. 6 to 9 is provided at each of the divided portions of the guide rail (at the circle 4 in FIGS. 2A and 2B). Have been. As shown in FIGS. 2B and 5, the guide rail 2A belonging to the shaft 1A of the middle seismic isolation layer portion K is connected to the guide rail 2B fixed in the shaft 1B of the superstructure, or vice versa. And FIG.
The height of the elevator cage 3 (passing position) when the earthquake sensor detects an earthquake is determined by whether the elevator cage 3 is connected to the guide rail 2C fixed in the shaft 1C of the lower structure as shown in FIG. The connection to a safer one is made according to the actual situation of the moving direction of whether it is ascending or descending and the situation.

For example, FIGS. 2A and 4 show the case where the elevator cage 3 is located in the shaft 1A of the middle seismic isolation layer portion K at the time of the earthquake or at a position on the way down from that position. The guide rail 2A belonging to the shaft 1A of the earthquake layer portion K is connected to the guide rail 2C fixed in the shaft 1C of the lower structure. 2B and FIG.
Is the case where the elevator cage 3 is in the shaft 1A of the middle seismic isolation layer K at the time of the occurrence of the earthquake, or is in the middle of ascending from that position.
Are connected to a guide rail 2B fixed in a shaft 1B of the upper structure. Since the connection and switching of the guide rails as described above are premised, in the range of the guide rail 2A belonging to the shaft 1A of the middle seismic isolation layer portion K, the height position of the elevator cage 3 and whether In order to determine the moving direction of the elevator cage 3, the operation speed of the elevator cage 3 is limited and the elevator cage 3 is moved slowly.

Therefore, as shown in the control flow of FIG. 11, the rail attaching / detaching mechanism detects the position of the position sensor 5 for detecting the position of the elevator car 3, the direction sensor 6 for detecting the moving direction, and the detection of the earthquake sensor 7, respectively. In this configuration, the drive unit of the rail attaching / detaching mechanism is drive-controlled based on a control signal calculated by the control device 8 that has received the signal. Incidentally, the position sensor 5 described above and a direction sensor 6 for detecting a moving direction,
Since the existing elevators are equipped with all the earthquake sensors 7, they are implemented by using these.

The rail attaching / detaching mechanism is configured as shown in the embodiment in FIGS. The illustrated example shows a rail attachment / detachment mechanism for a guide rail 2A belonging to the shaft of the middle seismic isolation layer K and a guide rail 2C fixed to the shaft of the lower structure M.
A and 2C are vertically arranged in a series. A rail attachment / detachment mechanism is installed on a seam plate 10 having a divided structure behind the rail. Outer steel pipes 11 and 12 having the same divided configuration are fixed to the seam plate 10 in a series of vertical arrangements. In the outer steel pipe 12 attached to the guide rail 2C fixed to the shaft of the lower structure M, the inner steel pipe entering and exiting the outer steel pipe 11 attached to the guide rail 2A belonging to the shaft of the middle seismic isolation layer portion K. The rod 13 is configured to be driven vertically by the driving means 9. As shown in FIG.
Penetrates deeply into the outer steel pipe 11 attached to the guide rail 2A, whereby the upper and lower two guide rails 2A and 2
B is connected. Conversely, the upper and lower two guide rails 2A and 2B are separated by completely separating the inner steel rod 13 from the outer steel pipe 11 attached to the guide rail 2A as shown in FIG.

This rail attaching / detaching mechanism also allows the elevator cage 3 to be stably moved up and down by strongly fixing the connection state when the upper and lower guide rails 2A and 2C shown in FIG. 6 are connected. At the time of separation, a fixing / separation mechanism for loosening the fixing state and facilitating the separation operation is also provided (the invention according to claim 2). This fixing / separating mechanism is, in short, a cam mechanism 14 attached to the inner steel bar 13 as apparent from a comparison between FIGS.
However, with the rotation of the inner steel bar 13 in the normal rotation direction, the inner steel bar 13 expands in the radial direction to be in a tightened and fixed state, and the cam mechanism 14 is reduced in the radial direction and loosens as the rotation in the reverse rotation direction. Therefore, the inner steel bar 1 moved up and down by the driving means 9
A rotation imparting mechanism 15 for causing the rotation of the motor 3 is also provided (see FIG. 10). The rotation imparting mechanism 15 is composed of a combination of a spiral groove 20 formed in the inner steel bar 13 and a slider 21 moving in the groove, for example, as shown in FIG. In this case, a forward or reverse rotation is provided. Although the driving means 9 shown in FIG. 10 is configured to drive the rack 23 provided on the inner steel bar 13 with the pinion 24 of the electric motor, a hydraulic or pneumatic cylinder, a linear motor, or the like may be employed.

As shown in FIGS. 9 and 10 in an enlarged manner, as a means for realizing the fixing / separating operation by the cam mechanism 14, the outer steel pipes 11 and 12 are provided with longitudinally rib-shaped shoes. A plurality of guides 16 are fixed, and a shoe 17 is provided at an intermediate portion of each shoe guide 16, and the eccentric cam protrudes and strongly presses the shoes 17 to be in a fixed state, or the cam contracts and the shoe 1 contracts.
7 to be loosened.

[0018]

The seismic isolation elevator structure according to the first and second aspects of the present invention is installed so as to pass through the seismic isolation layer of an intermediate seismic isolation building. The function and safety of the vehicle are not impaired. In addition, there is no need to install protective fences and piers near the landings, and yet it is possible to sufficiently secure passenger safety. In addition, there is no dead space in the space around the shaft on the lower floor, and the space can be used effectively like a normal building.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a configuration of a main part of an elevator shaft.

FIGS. 2A and 2B are explanatory views showing the configuration of a guide rail and the position and direction of an elevator car.

FIG. 3 is an explanatory view showing a structural outline of a seismic isolation elevator of the present invention.

FIG. 4 is an explanatory diagram showing a deformed state during an earthquake.

FIG. 5 is an explanatory diagram showing a deformed state during an earthquake.

FIG. 6 is an explanatory view of a rail attaching / detaching mechanism in a vertical direction.

FIG. 7 is a plan view of a rail attaching / detaching mechanism.

FIG. 8 is an explanatory view of a rail attaching / detaching mechanism in a vertical direction.

FIG. 9 is a structural explanatory view of a rail attaching / detaching mechanism and a rail fixing / separating mechanism.

FIG. 10 is an explanatory view of the mechanism.

FIG. 11 is a control flow of a rail attaching / detaching mechanism.

FIG. 12 is an explanatory diagram of a conventional seismic isolation elevator.

FIG. 13 is a diagram illustrating the necessity of a seismic isolation elevator.

[Explanation of symbols]

 1A-1C Elevator shaft 2A-2C Guide rail C Seismic isolation clearance 4 Installation location of rail attaching / detaching mechanism 3 Elevator cage 5 Position sensor 6 Direction sensor 7 Earthquake sensor

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Yoshihiro Mataki 8-21-1, Ginza, Chuo-ku, Tokyo Inside Takenaka Corporation Tokyo Main Store (72) Inventor Tadahiro Yano 8-21 Ginza, Chuo-ku, Tokyo No. 1 Inside the Takenaka Corporation Tokyo head office F-term (reference) 3F301 BB05 BB11 BD11 3F304 CA04 DA01 EA00 EA01 EA05 3F305 BA01 BD01 BD06

Claims (2)

[Claims] An elevator shaft is divided into a shaft of an intermediate seismic isolation layer portion, a shaft of an upper structure thereof, and a shaft of a lower structure thereof. The seismic isolation clearance is secured, and the guide rails installed in each elevator shaft are
Each of the divided shafts is divided by a common division surface, and a rail attachment / detachment mechanism is provided at each of the division locations.The rail attachment / detachment mechanism detects a position of an elevator car, movement. Drive control is performed based on the direction sensor that detects the direction and the detection signal of the seismic sensor, and the guide rail in the shaft of the middle seismic isolation layer part is fixed in the shaft of the upper structure according to the position and movement direction of the elevator car. A seismic isolation elevator structure for an intermediate seismic isolation building, wherein inter-layer deformation is allowed while being connected to a guide rail or a guide rail fixed in a shaft of a lower structure. 2. The rail attaching / detaching mechanism is provided with a fixing / separating mechanism for strongly fixing the connection state when connecting the guide rail and loosening the fixed state when disconnecting the guide rail to facilitate the separating operation. The seismic isolation elevator structure for an intermediate seismic isolation building according to claim 1, wherein: