JPH07277615A - Elevator system - Google Patents

Abstract

PURPOSE:To realize an elevator system which is the optimum in respect of transport capacity, fully occupying area, operation performance, cost and the like by arranging an elevator and a multi-car elevator system side by side. CONSTITUTION:An elevator system is formed by arranging an elevator and a multi-car elevator system side by side to satisfy designated condition and object in the same building. As an example, in order to minimize the fully occupying area under a prior condition that the transport capacity is above a designated value, a constant is set according to specifications of a building and an elevator (step 10-1), the area proportion R of an elevator and a multi-car elevator system is calculated (step 10-2), and in order to exceed the input necessary transport capacity T0 (step 10-4), the number (x) of elevators and the number (y) of multi-car elevator system loops are decided by using R (step 10-5 10-8).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator system, and more particularly to a single car elevator that operates one car in one hoistway and a multiple car elevator that operates a plurality of cars in one hoistway. Regarding the system to install and

[0002]

2. Description of the Related Art Conventionally, elevators and escalators have been widely used as elevator systems for vertically transporting passengers in buildings.

The elevator is a single car elevator, in which an individual hoistway is provided for each car, and the car freely travels in the up and down direction.

However, in order to increase the usable area in a building, it is possible to use a plurality of car elevators that allow a plurality of cars to travel in a common hoistway, rather than an elevator system of a single car elevator that has a separate hoistway for each car. A certain multi-car elevator system is advantageous and its technology is known.

For example, as a mechanism of a multi-car type elevator system, a combination of a lifting drive rope and a direction reversing mechanism is disclosed in JP-A-1-267287, and JP-A-3-1522.
There is a self-propelled type which is driven by a linear motor installed in a car in Japanese Patent No. 078.

Group V1000, "Vertical City Concept" (Kaibundou Shuppan, July 1989) pp. 118-12
First, the building is composed of multiple blocks, and there are multiple car elevators between the blocks "Triple Decker", and the inside of the block is a single car elevator "Block elevator"
The idea to transport in is described.

[0007]

The elevator, which is a single car elevator, and the multi-car type elevator system, which is a multiple car elevator, have their own advantages and disadvantages. However, in the above-mentioned conventional technology, there is no idea that the two are provided side by side to compensate for the defects and realize new advantages.

An object of the present invention is to provide an elevator system in which an elevator and a multi-car type elevator system are combined with each other, and to provide a judging method for judging whether or not the adjoining is advantageous from the effect of adjoining.

[0009]

In order to solve the above problems, an elevator that is a single car elevator means and a multi-car type elevator system that is a multiple car elevator means are installed side by side in the same building. .

Regarding the number of installed cars, the number of installed single car elevator means and multiple car elevator means is determined by a method for determining the number of installed cars, the elevator car means, etc. from the respective occupied areas and operation efficiency. .

[0011]

The single car elevator means operates one car in one hoistway.

The multi-car elevator means operates a plurality of cars in one hoistway.

The number of installations can be determined by the transportation capacity, occupied area,
Based on operation performance such as waiting time and boarding time, or installation and operation costs, the number of single car elevator means and multiple car elevator means installed is determined.

[0014]

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

First, an outline of an elevator and a multicar type elevator system will be described with reference to FIG.

FIG. 1 is a diagram showing the outline of (1) elevator and (2) multi-car type elevator system.

(1) In the elevator, the car 1 travels in the hoistway 2. Above and below the hoistway 2 are an upper machine room 3 and a lower machine room 4. The details of these are publicly known and therefore will not be described. Also, the car 1
There are two driving methods such as using a rope and using a hydraulic plunger. As will be described later, the present invention can be similarly applied even if this driving method is different.

Therefore, in the present invention, all the one car 1 operating in one hoistway 2 is treated as a single car elevator means and is referred to as an "elevator" regardless of the drive system or the like. .

(2) The multi-car type elevator system is
A plurality of cars 1 travel in a circulation type hoistway composed of a hoistway 2, an upper machine room 3 and a lower machine room 4. As a traveling mechanism of the car 1, for example, a self-propelled mechanism using a linear motor is disclosed in Japanese Laid-Open Patent Publication No. 3-152078.
A combination of a raising and lowering drive rope and a direction reversing mechanism is disclosed in JP-A-1-267287. However, the present invention can be applied regardless of the drive mechanism as long as the car 1 can travel independently in the circulation type hoistway 2 together with other cars. Any method may be used. In addition, when the present invention is applied, the car may be overtaken and reversible, or the number of cars is not particularly limited.

Therefore, in the present invention, regardless of the drive system or the like, all the cars operated by a plurality of cars 1 in the common hoistway 2 are treated as a multi-car elevator means, and a "multi-car elevator system" is provided. It is written as.

Further, in this embodiment, since the circulation type system is exemplified, hereinafter, the number of systems of the multi-car type elevator system is counted by "the number of loops". However, for example, there is a multi-car type elevator system in which eight cars are operated in four hoistways such as traveling and evacuation, so that the number of systems is actually a more accurate expression.

Next, regarding the method of installing this elevator and the multicar type elevator system in combination,
explain. In the following description, a method for minimizing the occupied area by setting the transportation capacity to a predetermined value or more will be described.

Even when the size of the car is the same, the hoistway area actually required varies depending on the driving method and other differences. A method of calculating an occupied area in a building of an elevator and a multi-car elevator system will be described with reference to FIG.

(1) Occupied area S1 for one elevator
Is the sum of the area of each floor and the machine room area, so if the hoistway area of the first floor for one elevator is a, the machine room area for one elevator is b, and the number of floors passing through is F, It can be represented by S1 = a × F + b (Equation 1). When the hoistway area of the first floor for one elevator is standardized to 1 (a = 1), the machine room area b is, for example, b = 3.5 ... (Equation 2). However, this value is used only in the present embodiment because the value may be different depending on the driving method or the like, or the area of the machine room may be neglected due to the structure of the building. From this, if the building has 15 floors, the number 1
Therefore, S1 = a × F + b = 1 × 15 + 3.5 = 18.5 (Equation 3).

Similarly, (2) the occupying area S2 for one loop of the multi-car type elevator system is as follows: c is the hoistway area of the first floor for one loop, d is the machine room area, and F is the number of floors passing through. Then, it can be expressed by S2 = c × F + d (Equation 4). With respect to the standard value (a = 1) described above, if the values used in this embodiment are c = 2.5 ... (Equation 5) d = 8 ... (Equation 6), from Equation 4, S2 = c × F + d = 2.5 × 15 + 8 = 45.5 (Equation 7).

From this, in the case of x elevators and multi-car type elevator system y loop, the occupied area S of the entire elevator system is S = S1 × x + S2 × y = 18.5x + 45.5y (Equation 8). Further, when the ratio of the occupied area of the elevator and the multicar type elevator system is R, R = S2 / S1 = 45.5 / 18.5 = 2.46 (Equation 9).

FIG. 2 is a diagram showing an example of characteristics of transportation capacity of an elevator and a multicar type elevator system.

Here, the height of the building is 15 floors, and the transportation capacity is measured by the number of people who can transport from the standard floor in 30 minutes. Elevator speed is 150m / min, capacity 20
It is a person's condition. In addition, the multi-car type elevator system is a circulation type shown in FIG. 1 with a speed of 90 m / min, a capacity of 20 people, 30 seconds for reversing direction, and at least one floor floor open between cars, and overtaking is impossible.

From FIG. 2, the transport capacity T1 of the elevator is shown.
Increases in proportion to the number of vehicles. The number of elevators is x, and its characteristic is hereinafter referred to as a function f1 (x).

T1 = f1 (x) (Equation 10) The transport capacity T2 of the multi-car type elevator system has a characteristic of being saturated when the number of cars in the loop increases. This characteristic is f2 (z) where z is the number of cars in the loop.
When the number of loops in the multi-car elevator system increases, the entire transportation capacity increases proportionally. Therefore, when the number of loops is y, T2 = y × f2 (z) (Equation 11).

Therefore, the transport capacity T of the entire elevator system
Is T = T1 + T2 = f1 (x) + y × f2 (z) (Equation 12). From this, the problem of determining the number of installed elevators and multi-car elevator systems can be formulated as minimizing the occupied area S under the condition that the transportation capacity T is a predetermined value or more.

As a method of determining the number of installations, a flow chart in the case where the minimum occupied area is set is shown in FIG.

First, in step 10-1, the above-mentioned constants a, b, are adjusted according to the specifications of the target building and elevator.
Set c, d, and F.

In step 10-2, the ratio R of the occupied area of the elevator and the multicar type elevator system is calculated.

As for the ratio R of the occupying area, when the number of elevators is less than this value, the occupying area is smaller when the elevator is installed, and when it is larger, it is better to use the multi-car type elevator system. It is a boundary value indicating that. In this embodiment, from the equation 9, R = 2.
46.

In step 10-3, the number of elevators x, the number of loops of the multi-car elevator system y, and the number of cars in the loop z are initialized.

In this embodiment, since R = 2.46, the number of elevators x = 1 and the number of loops of the multicar type elevator system y = 0 are set as initial values.

In order to increase the transportation capacity per occupied area, the number of cars in the loop z of the multi-car type elevator system is set to a transportation capacity f1 (3) or more for three elevators (R or more). Since it is necessary, 6 from Fig. 2
It was a stand

In step 10-4, the required transport capacity T
Enter 0.

In step 10-5, the set x, y, z
The transport capacity according to Eq. When the transportation capacity is smaller than T0, the process proceeds to step 10-6.

In step 10-6, the number x of elevators is compared with the occupied area ratio R. If x is small, the number x of elevators is increased by 1 in step 10-7.

If x exceeds R in step 10-6, it is more efficient in area to use the multi-car type elevator system. Therefore, in step 10-8, the number of elevators x is set to 0, and The number of loops y of the car type elevator system is increased by 1 loop. After performing the processing of step 10-7 or step 10-8,
Returning to the judgment of -5, this process is repeated until the required transport capacity T0 is exceeded.

When the required transport capacity T0 is exceeded in step 10-5, the process proceeds to step 10-9 and the process is terminated. The values of x and y at this time are the number of installed elevators and multicar type elevator systems.

As an example of the number of installations, when the required transportation capacity T0 is given and the number of installations of the elevator and the multi-car type elevator system is calculated using the values exemplified in this embodiment, T0 = 300: x = 2 , Y = 0 (Equation 13) T0 = 600: x = 0, y = 1 (Equation 14) T0 = 900: x = 1, y = 1 (Equation 15) T0 = 1200: x = 0, y = 2 (Equation 16) From this, like Equation 13, Equation 14, and Equation 16,
It can be seen that there are cases where it is better to install the elevators or the multi-car type elevator system without mixing them, and cases where it is effective to install them side by side, as in Equation 15.

Using the above-mentioned numerical values, the effect of the side effect in the case of Expression 15 will be compared with the case of the elevator alone and the multicar type elevator system alone.

Transport capacity of 900 for elevator alone
In order to satisfy the number of people / 30 minutes, 5 units are required from FIG. 2, and the occupied area S3 is calculated from Formula 3 as follows: S3 = S1 × 5 = 18.5 × 5 = 92.5 (Formula 17) ) Is. Further, in the case of the multi-car type elevator system, even if there are any number of cars in the loop, one loop is not enough, so two loops are required. From Equation 7, the occupied area S4 is S4 = S2 × 2 = 45.5 × 2 = 91.0 (Equation 18). On the other hand, the present invention is applied to the elevator 1
Assuming that the pedestal and the multi-car type elevator system 1 loop are configured, the occupied area S5 is S5 = S1 × 1 + S2 × 1 = 18.5 × 1 + 45.5 × 1 = 64.0 (Equation 19). Therefore, the improvement effect obtained by applying the present invention is (S5-S4) / S4 × 100≈30% (Equation 20).

The process of the method for determining the number of installations described with reference to FIGS. 2, 3 and 1 to 16 is calculated by using a characteristic diagram and a specification table prepared in advance such as occupied area and transportation capacity.
Alternatively, the implementation means of the present invention is not particularly limited, such as implementation as software on a computer.

Further, as will be described below, the point of the present invention is to determine the number of elevators and multicar type elevator systems to be installed so as to achieve a certain purpose while satisfying a predetermined prerequisite. However, the implementation method is not limited to the method using the occupied area ratio R shown in FIG.

In the above description, the precondition is that the transportation capacity is not less than the predetermined value, and the purpose is that the occupied area is minimized. However, as another realization method, the precondition is that the occupied area is less than the predetermined value Operation performance (waiting time, boarding) Time, etc.) Below a predetermined value Costs (installation costs, operation costs, etc.) Below a predetermined value Purpose: Maximize transportation capacity, optimize operation performance (waiting time, boarding time, etc.) Minimize costs (installation costs, operation costs, etc.) It is also possible to have a plurality of prerequisites and purposes. At this time, the operation performance depending on the waiting time, boarding time, etc. is shown in FIG.
It is possible to create and use a characteristic diagram such as.

As an example, the precondition is a predetermined transportation capacity,
The purpose is to improve waiting time and reduce operating costs. At this time, the monthly average operating cost (electricity, etc.) is 3.5 times that of the rope-type multi-car type elevator system and 6.0 times that of the self-propelled multi-car type elevator system as compared to one elevator. , Etc., and the waiting time when the elevator, the rope-type multi-car type elevator system, and the self-propelled multi-car type elevator system are combined is calculated by simulation, so that the optimum installation can be performed as in the previous embodiment. The number can be determined.

Finally, an example of hoistway arrangement when an elevator and a multi-car type elevator system are installed side by side is shown in FIG.
Shown in.

(1) is an arrangement example in the case of 2 units + 1 loop, and elevators are arranged on both sides of the multi-car type elevator system (side-by-side arrangement).

(2) is an example of arrangement in the case of 1 unit + 1 loop, and between the hoistways of the multicar type elevator system,
Elevators are placed (concentric arrangement).

Since the machine room is larger in the concentric circle arrangement than in the side-by-side arrangement, the occupied area is slightly larger. However, when the doors of the elevator and the multi-car elevator system are installed in the same direction, the two doors on the left side of the three doors when ascending and two on the right side when descending, with respect to the traveling direction when boarding. Since it can be separated into two, the usability for the user is improved.

In the concentric arrangement, a plurality of central elevators may be installed in parallel, or the loop of the multi-car type elevator system may be multiplexed.

As another example to which the present invention is applied, the upper zone in the same building is transported by an elevator and the lower zone is transported by a multi-car type elevator system, or
It is possible to install a multi-car lift system 2 loops on the main entrance side in the same building and an emergency elevator for the back door side. These apply the present invention by dividing the required transportation capacity in the building into zones, and optimize the total occupied area of the elevator system as a whole building,
This is an example of installing an elevator and a multi-car lift system together.

The embodiment described above has the following effects.

By calculating the occupied area ratio R, the number of installed elevators and multicar type elevator systems can be quantitatively set.

According to the specifications of the building and the elevator, there is an effect that the occupied area of the entire elevator system can be minimized. In this embodiment, the effect of reducing the occupied area is about 30%.

The hoistway arrangement has the effect of realizing a convenient elevator system.

[0061]

According to the present invention, transportation capacity, occupied area,
This has the effect of realizing an optimal elevator system in terms of operating performance and costs.

[Brief description of drawings]

FIG. 1 is a schematic diagram of an elevator and a multi-car elevator system.

FIG. 2 is a diagram showing characteristics of transportation capacity.

FIG. 3 is a flow chart for minimum occupied area setting.

FIG. 4 is a diagram showing an arrangement example of hoistways.

[Explanation of symbols]

1 ... Car, 2 ... Hoistway, 3 ... Upper machine room, 4 ... Lower machine room, 10 ... Occupied area minimum setting flowchart.

Claims (8)

[Claims] 1. An elevator system using a car that operates between a plurality of floors, and a single car elevator means that operates one car in one hoistway, and a plurality of cars in one hoistway. An elevator system characterized by being provided with a plurality of car elevator means for operating a car. 2. An elevator system using a car that operates between a plurality of floors. A single car elevator means for operating one car in one hoistway, and a plurality of cars in one hoistway. A plurality of car elevator means for operating a car is provided, and the number of installations of each of the single car elevator means and the plurality of car elevator means is determined so as to satisfy a given transportation capacity. An elevator system, wherein the single car elevator means and the multiple car elevator means based on the respective installed numbers are provided side by side. 3. An elevator system using a car that operates between a plurality of floors, and a single car elevator means that operates one car in one hoistway, and a plurality of cars in one hoistway. A plurality of car elevator means for operating the car, and each of the single car elevator means and the plurality of car elevator means so as to reduce the occupied area of the entire elevator system under the condition of satisfying a given transportation capacity. An elevator system, characterized in that the single car elevator means and the multiple car elevator means based on each installation number determined using a method for determining the number of installations are provided side by side. 4. An elevator system using a car that operates between a plurality of floors. A single car elevator means for operating one car in one hoistway, and a plurality of cars in one hoistway. A plurality of car elevator means for operating a car, and each of the single car elevator means and the plurality of car elevator means are provided so as to improve the waiting time of the entire elevator system under the condition of satisfying a given transportation capacity. An elevator system, wherein the single car elevator means and the multiple car elevator means based on each installation number determined by using the installation number determining method for determining the installation number are provided side by side. 5. An elevator system using a car that operates between a plurality of floors, a single car elevator means for operating one car in one hoistway, and a plurality of cars in one hoistway. In order to improve the sum of waiting time and boarding time of the entire elevator system under the condition of satisfying a given transportation capacity, it is provided with a plurality of car elevator means for operating a car,
The single car elevator means and the multiple car elevator means are provided together based on the number of installations determined by using the installation number determining method for determining the number of installations of each of the single car elevator means and the multiple car elevator means. Elevator system characterized by that. 6. An elevator system using a car that operates between a plurality of floors, and a single car elevator means that operates one car in one hoistway, and a plurality of cars in one hoistway. A plurality of car elevator means for operating the car, and the waiting time of the entire elevator system under the condition that the given occupied area of the entire elevator system is satisfied, or
In order to improve performance such as boarding time, the single car elevator based on each installation number determined by using the installation number determination method for determining the installation number of each of the single car elevator means and the multiple car elevator means And a plurality of car elevator means are provided side by side. 7. An elevator system using a car that operates between a plurality of floors, a single car elevator means for operating one car in one hoistway, and a plurality of cars in one hoistway. It is equipped with a plurality of car elevator means for operating a car, and compared with a case where only a single car elevator means or a plurality of car elevator means is installed, the transportation capacity, the occupied area,
Number of installations determined by using an installation number determination method that determines the number of installations of each of the single car elevator means and the multiple car elevators means so as to improve at least one of operation performance or cost. An elevator system comprising the single car elevator means and the multiple car elevator means based on the above. 8. An elevator system using a car that operates between a plurality of floors, a single car elevator means that operates one car in one hoistway, an ascending side hoistway and a descending side hoistway. And a circulation type multi-car elevator means for operating a plurality of cars in a circulation type hoistway formed by direction-reversing hoistways that connect the ascending / descending side hoistways up and down. By installing the hoistway of the single car elevator means between the ascending side hoistway and the descending side hoistway of the road, the single car elevator means and the circulation type multiple car elevator means are provided side by side. Elevator system.