JP2006290597A - Elevator for base isolation building - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevator for a base isolation building having an in-pit structure preferable for improving the safety of maintenance/inspection work. <P>SOLUTION: The elevator for the base isolation building is provided with a floor member 10 for work, which moves following the movement of the base isolation building 200 relative to a non-base isolation foundation, on a pit floor of the non-base isolation foundation. The floor member 10 for work is fixed to the base isolation building 200 or fixed to a member through a base isolation device such as a guide rail 6. Therefore, contact or collision between a hoistway wall or equipment in a hoistway and a worker is prevented, and the safety of maintenance/inspection work is improved. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an elevator for a base-isolated building.

  Conventionally, in an elevator pit of an elevator for a base-isolated building that is built on a non-base-isolated foundation, a guide rail for a passenger car and a counterweight is fixed on the base-isolated side, and a shock absorber and a shock absorber stand are provided from each of these guide rails. Is suspended (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 10-36031

  Maintenance inspection work in the elevator pit of an earthquake-proof building elevator is usually performed on the pit floor on the non-base-isolated foundation side. For this reason, when an earthquake occurs during work, the floor on the non-isolated side and the base-isolated building move relatively, so that workers do not touch the equipment in the pit or the seismic isolated wall. It is necessary to deal with it quickly.

  The present invention has been made in consideration of the above-described problems, and provides an elevator for a base-isolated building having a structure in a pit suitable for improving safety of maintenance and inspection work.

  In the base-isolated building elevator according to the present invention, a floor member that moves following the movement of the base-isolated building relative to the non-base-isolated foundation is provided on the pit floor of the base-isolated base.

  According to the present invention, since the floor member moves following the base-isolated building, fluctuations in the relative distance between the hoistway wall and the equipment in the hoistway and the operator can be mitigated by working on the floor member. The Accordingly, contact and collision between the hoistway wall and the equipment in the hoistway and the worker are prevented, and the safety of the maintenance inspection work is improved.

FIG. 3 shows the overall configuration of an elevator for a base-isolated building that is an embodiment of the present invention. However, in this drawing, the detailed configuration of the elevator pit is omitted. The base isolation building 200 is installed on the non-base isolation base 100 via the base isolation device 101. In the elevator hoistway 5 provided in the seismic isolation building 200, the car 2 and the counterweight 3 are suspended in a lip shape by the elevator rope 12. The elevator rope 12 is wound around the sheave 1 of the driving device, and when the sheave 1 rotates and the elevator rope 12 is driven, the car 2 and the counterweight 3 move up and down in the elevator hoistway 5. In the elevator pit, shock absorbers 4 are installed on the non-seismic isolation pit floor 11 directly below the car 2 and the counterweight 3, respectively.

  FIG. 1 shows a detailed configuration of an elevator pit in the seismic isolation building elevator according to the embodiment of the present invention shown in FIG. A rail bracket 7 is fixed inside the hoistway wall 51 in the seismic isolation building 200, and a car guide rail 6 for guiding the car to the rail bracket 7 is fixed. A shock absorber base 8 is attached to a lower end of the car guide rail 6, that is, an end portion on the pit floor 11 side so as to be suspended. A shock absorber 4 for a car is fixed on the shock absorber base 8. In this figure, the guide rails for the counterweight, the shock absorber and the shock absorber stand are omitted, but they have the same configuration as that for the passenger car. Further, a bracket 9 is fixed above the lower end of the car guide rail 6, and the work floor 10 is attached to the bracket 9 so as to be suspended. The working floor member 10 is located between the non-seismic isolation floor 11 and the shock absorber base 8. A worker gets on the floor member 10 for work and performs maintenance and inspection work of equipment installed in the pit such as the shock absorber 4. The working floor member 10 may be slidably in contact with the non-seismic isolation floor 11 or may be non-contact.

  FIG. 2 shows a plan configuration when the elevator pit shown in FIG. 1 is viewed from above the hoistway. 1 and 3 are denoted by the same reference numerals. As shown in the figure, the area of the working floor member 10 is wider than the shock absorber table 8. In other words, the floor member 10 for work is provided so as to be wide enough to ensure the workability of the maintenance inspection work and to spread under the shock absorber 4 and the shock absorber base 8 and around them.

With the above-described configuration, the working floor member 10 is fixed to the seismic isolation building 200 via the rail bracket 7 and the car guide rail 6. For this reason, even if the non-seismic isolation floor 11 moves when an earthquake occurs, the work floor member 10 hardly moves relative to the seismic isolation building 200. Furthermore, since the shock absorber 4 is also fixed to the base isolation building 200 via the shock absorber base 8, the car guide rail 6 and the rail bracket 7, the shock absorber 4 also moves almost with respect to the base isolation building 200. do not do. Therefore, if the operator works on the work floor member 10, the relative distance between the worker and the shock absorber 4 hardly changes even when an earthquake occurs, so that the worker and the shock absorber 4 may contact or collide with each other due to the earthquake. Is prevented. In addition to the shock absorber 4, in maintenance and inspection work of elevator equipment fixed to the seismic isolation building 200, such as a shock absorber for a counterweight not shown and an elevator control device fixed to the hoistway wall, Similarly, safety is improved.

FIG. 4 shows a detailed configuration of an elevator pit in an elevator for a base-isolated building that is another embodiment of the present invention. The same components as those in FIGS. 1 to 3 are denoted by the same reference numerals. The overall configuration is the same as in FIG. In this embodiment, instead of fixing the work floor member 10 to the base isolation building 200, the work floor member 10 is provided on the pit floor 11 on the non-base isolation base 100 side via the base isolation device 102. It is done. For this reason, when an earthquake occurs, both the building and the work floor member are seismically isolated. Accordingly, as in the embodiment of FIG. 1, it is possible to prevent the worker and the shock absorber 4 from contacting or colliding with each other due to the earthquake.

  Note that the present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the technical idea of the present invention. For example, the working floor member 10 may be fixed to a bracket fixed inside the hoistway wall 51. Further, the work floor may be provided by dividing it into a plurality of parts.

The detailed structure of the elevator pit in the elevator for base-isolated buildings which is one Example of this invention is shown. The planar structure which looked at the inside of the elevator pit shown in FIG. 1 from the hoistway upper part is shown. The whole structure of the elevator for seismic isolation buildings which is one Example of this invention is shown. The detailed structure of the elevator pit in the elevator for base-isolated buildings which is the other Example of this invention is shown.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Sheave, 2 ... Car, 3 ... Counterweight, 4 ... Buffer, 5 ... Hoistway, 6 ... Guide rail for car, 7 ... Rail bracket, 8 ... Shock absorber stand, 9 ... Bracket, 10 ... Work Floor member for use, 11 ... pit floor, 12 ... elevator rope, 51 ... hoistway wall, 100 ... non-base isolation base, 101, 102 ... base isolation device, 200 ... base isolation building.

Claims (4)

In an elevator for a base-isolated building in which a car goes up and down in the hoistway of a base-isolated building installed on a non-base-isolated foundation,
An elevator for a base-isolated building comprising a floor member that moves following the movement of the base-isolated building relative to the non-base-isolated foundation on a pit floor of the base-isolated base below the hoistway.   2. The base-isolated building elevator according to claim 1, wherein the floor member is fixed to the base-isolated building.   3. The base-isolated building elevator according to claim 1, wherein the floor member is fixed to a guide rail fixed to the hoistway. 2. The base-isolated building elevator according to claim 1, wherein the floor member is provided on the pit floor via a base isolation device.

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