JP2001097651A - Elevator shaft for base isolation building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator shaft for a base isolation building of high reliability and safety allowing to suppress a construction cost. SOLUTION: In the elevator shaft 13 between a lower layer 2 and an upper layer 3 of the building having a base isolation device 1 inserted, rigid pillars 4, 4 to secure guide rails 5, 5 are supported on the upper layer 3 at an upper end and on the lower layer 2 at a lower end through lateral direction rocking shafts 8, 8 and longitudinal direction rocking shafts 6, 6 so as to freely rock. The rigid pillars 4, 4 are connected to a base isolation interval guide housing 15 placed between the upper layer 3 and the lower layer 2 to synchronize rocking of the guide rails 5, 5, and the base isolation interval guide housing 15 is formed with a surrounding part 16 of a balance weight 14 to avoid an interference with an elevator car 19.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator hoistway for a base-isolated building, and more particularly, to an elevator hoistway by following a relative displacement between an upper layer and a lower layer of a building interposed with a seismic isolation device during an earthquake. It is possible to avoid the disabled state.

[0002]

2. Description of the Related Art A seismic isolation building is a building in which a seismic isolation device is interposed between the lower and upper layers of a building, and it is clear that relative displacement occurs between the upper and lower layers during an earthquake. If an elevator hoistway communicating with the upper layer is provided, the elevator hoistway may be interrupted between the lower layer and the upper layer, so that the elevator may not be able to move up and down. Therefore, in order to avoid such a situation, in many seismic isolation buildings, elevators are separately provided for the lower and upper layers sandwiching the seismic isolation device, and the elevators are switched when going to the uppermost layer.

However, in order to eliminate the hassle of transferring, an elevator hoistway communicating between the lower layer and the upper layer is provided, and the guide rail of the elevator car is configured to follow the relative displacement between the lower layer and the upper layer via the seismic isolation device. It has been proposed that the elevator hoistway be prevented from being interrupted by this (JP-A-9-278315, JP-A-10-278).
No. 231075 and JP-A-11-29277).

[0004]

However, according to the invention described in Japanese Patent Application Laid-Open No. 9-278315, a rail support provided with ball joints at upper and lower ends is swingably mounted on an intermediate layer having a seismic isolation device. Since the intermediate rail is supported and fixed to this rail support material, and the upper and lower ends of the intermediate rail are also swingably connected to the upper rail and the lower rail by a ball joint or a deformable connection rail, Although its structure is simple, it has poor reliability and safety.

According to the invention described in Japanese Patent Application Laid-Open No. Hei 10-231076, a column support beam is provided across a high-rise building and a low-rise building with a seismic isolation device interposed therebetween, and the lifting support is used by the column support beam. Since the guide rails are supported by the supporting members, the reliability and safety are expected to be improved in a structurally robust manner, but the construction cost is high and there is a drawback in terms of economy.

Further, in the invention described in Japanese Patent Application Laid-Open No. 11-29277, reinforcing struts are installed in parallel on both sides of the guide rail separately from the guide rails over a plurality of floors including the seismic isolation floor, and the upper and lower ends of the reinforcing strut are provided. The part is supported on the upper layer and the lower layer so that it can swing back and forth, right and left, and the cross beam is connected between the reinforcing columns to form a substantially parallelogram frame, and the guide rail is slidably mounted on the horizontal beam. The frame is deformed in a parallel link state with respect to the relative displacement between the layers, thereby promoting the elastic deformation of the guide rails. The structure to support as much as possible is complicated and requires much time for the construction work, so there is a problem that the construction cost increases.

Accordingly, the present invention provides an elevator hoistway for a base-isolated building which can reduce the construction cost and is highly reliable and safe.

[0008]

In order to achieve the above object,
According to the present invention, in an elevator hoistway that connects a lower layer and an upper layer of a building with a seismic isolation device interposed therebetween, a rigid column body is provided in the elevator hoistway with an upper end at an upper layer and a lower end at a lower end. The elevator hoistway of a seismic isolation building is characterized in that the lower layer is supported swingably in the front-rear and left-right directions, and the guide rails of the elevator car are fixed to the rigid pillars.

According to a second aspect of the present invention, the rigid column is connected to a seismic isolation guide box forming an elevator car hoistway and interposed between the lower layer and the upper layer of the building with the seismic isolation device interposed therebetween. The elevator hoistway of the seismic isolation building according to claim 1 is configured.

According to a third aspect of the present invention, an elevator hoistway of a seismic isolation building according to the first aspect is characterized in that a surrounding of a counterweight of an elevator car is formed in the guide housing between the seismic isolations. did.

In this way, the rigid columns are arranged in the elevator hoistway between the lower layer and the upper layer interposed with the seismic isolation device so as to be able to swing back and forth and left and right. Since the body swings while holding the guide rail without being deformed, the deformation and destruction of the guide rail that hinders the elevation of the elevator can be prevented.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.

An embodiment configured for the above purpose will be described. As shown in FIGS. 1 and 2, a rigid column is provided in a hoistway 13 between a lower layer 2 and an upper layer 3 with a seismic isolation device 1 interposed therebetween. The guide rails 5 extending from the lower layer 2 to the upper layer 3 are supported by the rigid pillars 4 so as to be swingable in the front-rear and left-right directions.

The hoistway 13 is formed between the seismic isolation layers separated by a predetermined distance between the lower layer 2 and the upper layer 3 with the seismic isolation device 1 interposed therebetween. 4
However, the upper end portion thereof is disposed in the upper layer 3 and the lower end portion thereof is disposed in the lower layer 2 so as to be swingable via the left-right swing shaft 8 and the front-back swing shaft 6, respectively.

The rigid column 4 is slightly larger than the width of the guide rail 5, and the lower layer 2 and the upper layer 3 with the seismic isolation device 1 interposed therebetween.
A free bracket 7 made of a metal rod having a quadrangular or U-shaped cross section having a required length that can be bridged therebetween and having a front and rear swinging shaft 6 at upper and lower ends thereof is swung by a left and right swinging shaft 8. It is movably connected.

As shown in FIGS. 3 and 4, the left and right swing shafts 8 are elongated holes 9, 9 on the right and left sides of the upper and lower ends of the rigid column 4, respectively.
Are opposed to each other, and are supported by the elongated holes 9 and 9 so as to be rotatable in the horizontal direction.

The fore-and-aft swing shaft 6 is inserted into a through hole formed substantially at the center of a connecting portion 10 rotatably connecting the left and right swing shaft 8 and a U-shaped free bracket 7 for fitting the connecting portion 10. I have.

The free bracket 7 is the upper layer 3 (or the lower layer 2)
Overhang 12 connected to mounting bracket 11 fixed to
Is bound to. Therefore, the rigid column 4 can swing in the hoistway 13 in the hoistway 13 via the swing shaft 8 in the left-right direction, and can swing in the hoistway 13 in the hoistway 13 via the swing shaft 6 in the front-rear direction.

The guide rail 5 guides the elevator car 19 up and down, and has a T-shaped cross section in which a pair of rollers (not shown) provided on the side surface of the elevator car 19 sandwich and slidably contact.

As shown in FIG. 5, the guide rail 5 is slidably fixed to the rigid column 4 by a pair of holding members 18 for holding the guide rail 5 therebetween. The holding member 18 is formed of an elongated sheet metal having offset both ends, one end of which is fixed to one side of the rigid column 4 by welding, and the other end of which is one side of the iron floor of the guide rail 5 having a T-shaped cross section. , But the guide rail 5 is restricted to be movable in the vertical and horizontal directions.

Further, as shown in FIG. 2, the rigid columns 4 are provided with a seismic isolation space 1 for moving and guiding the elevator car 19.
5 is connected. Guide frame 15 for seismic isolation is balanced weight 1
Side walls 17, 17 on the left and right sides of a surrounding body 16 surrounding
And are suspended in the hoistway 13 by the rigid pillars 4, 4.

The seismically isolated space 15 is a counterweight 14.
The purpose of this is not to interfere with the elevator car 19 and to swing the rigid columns 4 and 4 synchronously. Therefore, when the lower layer 2 and the upper layer 3 are displaced relative to each other, the rigid pillars 4 and 4 and the surrounding body 16 can be synchronized with each other, and the weights 14 are balanced with the elevator car 19.
Do not interfere with each other.

Therefore, when a relative displacement occurs between the lower layer 2 and the upper layer 3, as shown in FIGS. At 6 and 6, they swing in the front-rear direction (from FIG. 5 (A) to (B)) and in the left-right direction (FIGS. 1 to 6) via the left-right swing shafts 8 and 8, respectively. Accordingly, the guide rails 5 and 5 also oscillate in synchronization with each other, but the guide rails 5 and 5 are protected by the rigid pillars 4 and 4 without being greatly deformed and destroyed, and are not affected by relative displacement between the layers. Can follow.

In this way, the rigid columns 4 are provided so as to be able to swing relative to the relative displacement between the layers in the base-isolated building, so that the guide rails 5 and 5 of the elevator car 19 are prevented from being destroyed. Since the elevator can not be raised or lowered in the hoistway 13 of the base-isolated building without smooth operation, the safety can be improved.

[0025]

According to the present invention described above, a rigid column for supporting a guide rail is disposed on an elevator hoistway between a lower layer and an upper layer interposed with a seismic isolation device so as to be able to swing back and forth and left and right. Therefore, the construction cost can be kept low, and since the guide rail is supported by a rigid body, a highly reliable and safe elevator hoistway of a seismically isolated building can be obtained.

In addition, by connecting the seismic isolation guide housing to the rigid column, the swinging of the pair of guide rails can be synchronized, and the surrounding portion of the counterweight is formed in the seismic isolation guide housing. In this way, it is possible to prevent the elevator and the counterweight from interfering with each other due to the swinging of the rigid column and the guide rail due to the relative displacement of the vehicle, thereby ensuring safe ascent and descent.

[Brief description of the drawings]

FIG. 1 is a sectional side view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line XX of FIG.

FIG. 3 is an enlarged view of a section a in FIG. 1;

FIG. 4 is an enlarged view of a circle c in FIG. 2;

5A is a view taken in the direction of the arrow b in FIG. 1, and FIG.

FIG. 6 is an operation explanatory view of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Seismic isolation device 2 ... Lower layer 3 ... Upper layer 4 ... Rigid column body 5 ... Guide rail 6 ... Front-back direction swing shaft 7 ... Free bracket 8 ... Front-back direction swing shaft 9 ... Long hole 10 ... Connecting part 11 ... Mounting Bracket 12 ... Overhang 13 ... Hoistway 14 ... Balance weight 15 ... Seismic isolation guide housing 16 ... Surrounding part 17 ... Side wall 18 ... Nipping member

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Makoto Yoshihara 2-4-1 Nishi Shinjuku, Shinjuku-ku, Tokyo Shinjuku NS Building Japan Otis Elevator Co., Ltd. F-term (reference) 3F305 BA01 BD08 BD32

Claims (3)

[Claims] 1. An elevator hoistway connecting a lower layer and an upper layer of a building with a seismic isolation device interposed therebetween, a rigid column being provided in the elevator hoistway with its upper end at the upper layer and lower end at the lower layer. An elevator hoistway for a base-isolated building, wherein the elevator shaft is swingably supported in a direction, and a guide rail of an elevator car is fixed to a rigid column. 2. The structure according to claim 1, wherein the rigid column is connected to a seismic isolation guide housing forming an elevator car hoistway and interposed between a lower layer and an upper layer of the building with the seismic isolation device interposed therebetween. Elevator shaft of seismic isolated building. 3. The elevator hoistway of a base-isolated building according to claim 1, wherein a surrounding of a counterweight of an elevator car is formed in the guide housing between the base-isolated systems.