JP2001310883A - Elevator device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator device for arranging first car and second car in a traveling path in a hoistway and elevating/lowering each of the cars by a simple constitution. SOLUTION: Both of a first car 24 elevating/lowering in a first traveling path 22 of the hoistway 1 and a second car 25 elevating/lowering on an upper side of the first car 24 are provided. Corresponding to each of both the cars 24 and 25, a first driving machine 26 and a second driving machine 28 are provided. A counter weight 30 elevating/lowering in a second traveling path 23 is provided. One end of a main rope 32 is connected with the first car 24, is wound on the first driving machine 26, is wound on a suspended wheel 31 of the counter weight 30 and is wound on the second driving machine 28, and the other end is connected with the second car 25. As a result, because the one first traveling path 22 and the one counter weight 30 are required for both of the cars 24 and 25, occupancy area is reduced and manufacturing and installing troubles can be saved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator apparatus having a first car that moves up and down a hoistway and a second car that is arranged above the first car and moves up and down the same hoistway.

[0002]

2. Description of the Related Art FIG.
FIG. 1 is an elevational view conceptually showing a conventional elevator apparatus disclosed in Japanese Patent Application Laid-Open Publication No. HEI 10-202, 1993. In the figure, 1 is a hoistway of an elevator provided in a building, 2 is a first machine room provided above the hoistway 1, 3 is a second machine room provided above the first machine room 2, 4 Is a third machine room provided in the upper part of the second machine room 3, and 5 is a first elevating route provided in the hoistway 1.

The reference numeral 6 designates a first hoisting path 5
The second hoisting path, which is arranged in parallel away from the hoistway, 7 is provided in the hoistway 1 and the third hoisting path, which is arranged in parallel away from the second hoisting path 6, and 8 is provided in the hoistway 1 This is a fourth lifting path that is arranged parallel to the third lifting path 7. 9 is a first car that moves up and down the first elevating path 5, 10 is a second car that is arranged above the first car 9 and moves up and down the first elevating path 5, and 11 is arranged above the second car 10. This is a third car that moves up and down the first elevating path 5.

A first drive unit 12 is provided in the first machine room 2 and comprises a hoist, a drive motor and a deflecting wheel, and 13 is provided in the second machine room 3 and comprises a hoist, a drive motor and a deflecting wheel. The second driving machine 14 includes a hoisting machine, a driving motor, and a deflector wheel, and a third driving machine 15 provided in the third machine room 4.
Denotes a first weight that moves up and down the second elevating path 6, 16 denotes a second weight that moves up and down the third elevating path 7, and 17 denotes a third weight that moves up and down the fourth elevating path 8.

Reference numeral 18 denotes a first main rope having one end connected to the first car 9 and wound around the first drive unit 12 and the other end connected to the first weight 15, and 19 has one end connected to the second car 10. Is connected to the second drive unit 13 and the other end is connected to the second counterweight 16. The other end of the second main rope 20 is connected to the third car 11 and wound around the third drive unit 14. The other end is a third main cable connected to the third weight 17.

[0006] The conventional elevator apparatus is configured as described above, and when the first drive unit 12, the second drive unit 13, and the third drive unit 14 are respectively energized, the respective main ropes are driven and each of the main lines is driven. The car and the counterweight move up and down in opposite directions. In addition, the first car 9, the second car 10, and the third car 11 are controlled so that the respective lifting operations do not collide with each other. In such a configuration, the first car 9, the second car 10, and the third car 11 are arranged in one first hoistway 5 in the hoistway 1, and the area occupied by the hoistway 1 in the building is reduced to save. Space is being planned.

[0007]

In the conventional elevator apparatus as described above, each of the first car 9, the second car 10, and the third car 11 is provided with a counterweight. Therefore, it takes a lot of trouble to manufacture and install the counterweight and hang the main rope, or extra space is required in the hoistway 1 to provide a lifting path for each of the counterweights. There was a problem.

The present invention has been made to solve such a problem, and a first car and a second car are arranged in one hoistway in a hoistway, and the cars respectively move up and down with a simple configuration. The purpose is to obtain an elevator device.

[0009]

In the elevator apparatus according to the present invention, a first car which moves up and down the first hoistway of the hoistway, and which is arranged above the first car and moves up and down the first hoistway. A second car, a first drive and a second drive provided near the hoistway, a counterweight for moving up and down the second hoistway of the hoistway, and one end connected to the first car to drive the first drive. And a main rope connected to the second car at the other end.

In the elevator apparatus according to the present invention, the total weight of each of the first car and the second car is added to the total weight of 上 記 of the rated load capacity of each of the first and second cars. A counterweight of a corresponding weight is provided.

In the elevator apparatus according to the present invention, there are provided a first drive unit and a second drive unit having different rated operation speeds. Then, in the off-hours of use, when only one of the first car and the second car can cope, when there are many passengers, the high-speed driving machine of the above-mentioned twins is operated, and when there are few passengers, the above-mentioned twins are driven Is driven.

Further, in the elevator apparatus according to the present invention, a first car and a second car are provided, one of which is a passenger elevator and the other of which is a cargo elevator.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 1 to 5 are diagrams showing an example of an embodiment of the present invention. FIG. 1 is a conceptual elevational view, FIG. 2 is a diagram for explaining the elevator state of a car in the elevator apparatus of FIG. 1, and FIG. FIG. 4 is a diagram illustrating another elevator state of the car in the elevator apparatus of FIG. 1, FIG. 4 is a view illustrating another elevator state of the car in the elevator apparatus of FIG. 1, and FIG. It is a figure explaining an up-and-down state.

In the drawing, 1 is a hoistway of an elevator provided in a building, 21 is a machine room provided above the hoistway 1, 22 is a first hoistway provided in the hoistway 1, 23.
Is a second hoisting path provided in the hoistway 1 and arranged in parallel with the first hoisting path 22, and 24 is a first hoisting path 22
Is a second car that is arranged above the first car 24 and moves up and down the first elevating path 22.

Reference numeral 26 denotes a first drive unit provided in the machine room 21. The first drive unit 26 includes a hoisting machine, a driving motor, and a deflecting wheel 27 arranged apart from each other. Reference numeral 28 denotes a second driving machine provided in the machine room 21, which is constituted by a hoisting machine, a driving motor, and a deflecting wheel 29 disposed apart from each other.

Reference numeral 30 denotes a counterweight for moving up and down the second elevating path 23, and a suspension wheel 31 is provided. 32 is a main rope, one end of which is connected to the first car 24 and
6. Wrapped around the deflecting wheel 27, wrapped around the hanging wheel 31 of the counterweight 30, then wrapped around the second drive 28, deflecting wheel 29, and the other end is connected to the second car 25. .

In the elevator apparatus constructed as described above, the weight of the counterweight 30 including the lifting wheel 31 is calculated by adding the weights of the first car 24 and the second car 25 to the first car 24 and the second car 25, respectively. The weight is set to the sum of the half of the rated load in each of the two cars 25. When the first driving device 26 and the second driving device 28 are respectively urged, the main rope 32 is driven, and the counterweight 30 moves up and down in the opposite direction with respect to the first car 24 or the second car 25. .

When both the first car 24 and the second car 25 are both lowered, the counterweight 30 is arranged as shown in FIG. 2, and when the both are raised, the counterweight 30 is set. It is arranged as shown in FIG. Further, the balance weight 30 is arranged as shown in FIG. 4 when both of them are at the intermediate position of the hoistway 1, and the balance weight 30 is arranged when one of the two is raised and the other is lowered. It is arranged as shown in FIG.

Further, the two lifting operations are controlled so as not to collide with each other. Then, in a situation where one of the above both goes up and down and the other stops, the counterweight 3
0 moves up and down at half the speed of one of the two. Also,
In a situation where both of the two move up and down in the same direction, the balance weight 30 moves up and down in the opposite direction at the same speed as the two.

The elevator apparatus is simply constructed as shown in FIG. 1, that is, both are arranged in one first hoistway 22 in the hoistway 1, and one counterweight 30 corresponding to both is provided. Provided. Thus, the area occupied by the hoistway 1 in the building can be reduced to save space.

Since both of the above can be dealt with by one balance weight 30, the balance weight 3
It is possible to save time and effort in manufacturing and installing the device, thereby saving costs. Further, the two are suspended by a set of a plurality of main ropes 32 arranged in parallel with each other. Accordingly, the number of steps for hanging the main rope 32 can be reduced, and the number of steps for installation can be reduced, and the cost can be reduced.

Also, the weight of the counterweight 30 including the lifting wheel 31 is calculated by adding the weight of each of the first car 24 and the second car 25 to the total weight of each of the first car 24 and the second car 25 and 重量 of the rated load capacity of each of the two. Is set to the sum of the weights. Then, the average passenger load factor of the above two is 5% of the rated load capacity.
Since it is 0%, the vehicle can be operated with a small amount of electric power at the time of an average load by passengers, and the total amount of energy required for operating the elevator can be reduced.

Embodiment 2 FIG. By applying the configuration in the embodiment of FIGS. 1 to 5, an elevator apparatus can be easily configured as described below. That is, the first driving device 26 and the second driving device 2 having different rated operation speeds from each other.
Place 8 twins. Then, when the elevator car can be handled by only one of the first car 24 and the second car 25 during the off-hours, the number of passengers drives one of the two cars.

For example, when the number of passengers is large, the high-speed drive of the twins is operated and the passengers are transported by the corresponding car. When the number of passengers is small, the low-speed drive of the twins is operated. Then, the passengers are transported by the corresponding car. As a result, the vehicle can be operated with a small amount of electric power according to the number of passengers, and the amount of energy can be reduced. In addition, since one of the twins can be downsized, the equipment cost can be reduced.

Embodiment 3 By applying the configuration in the embodiment of FIGS. 1 to 5, an elevator apparatus can be easily configured as described below. That is, one of the first car 24 and the second car 25 is manufactured as a passenger elevator, and the other is manufactured as a cargo elevator. With such a configuration, the user of the elevator can select and use the passenger elevator and the cargo elevator as needed at the same elevator landing, so that the convenience can be improved.

[0026]

As described above, the present invention provides a first car that moves up and down the first hoistway of a hoistway, and a second car that is arranged above the first car and moves up and down the first hoistway. ,
A first drive and a second drive provided near the hoistway,
A counterweight that lifts and lowers the second hoistway of the hoistway, one end of which is connected to the first car and is wound around the first driving machine, and then is wound around a suspension wheel of the balancing weight and the second driving machine And a main rope connected to the second car at the other end.

Thus, both the first car and the second car are arranged in one first hoistway in the hoistway, and one counterweight corresponding to the both is provided. Thereby, the elevator device is simply configured, and there is an effect that the area occupied by the hoistway in the building is reduced to save space. In addition, since one counterweight can cope with both of the above, the production of the counterweight,
The number of installation steps can be reduced, which has the effect of reducing costs. Further, the two are suspended by a pair of main ropes arranged in parallel with each other.
Accordingly, the number of steps for hanging the main rope can be reduced, and the number of steps for installation can be reduced, which has an effect of reducing costs.

Further, as described above, the present invention is based on the sum of the total weight of each of the first car and the second car and the total of 1/2 of the rated load capacity of each of the two cars. A counterweight of a corresponding weight is provided.

Thus, both the first car and the second car are arranged in one first hoistway in the hoistway, and one counterweight corresponding to the both is provided. Thereby, the elevator device is simply configured, and there is an effect that the area occupied by the hoistway in the building is reduced to save space. In addition, since one counterweight can cope with both of the above, the production of the counterweight,
The number of installation steps can be reduced, which has the effect of reducing costs. Further, the two are suspended by a pair of main ropes arranged in parallel with each other.
Accordingly, the number of steps for hanging the main rope can be reduced, and the number of steps for installation can be reduced, which has an effect of reducing costs. Further, the weight of the counterweight is set to a value corresponding to the sum of the weight of each of the two and the sum of １ ／ of the rated load capacity of each of the two. Since the average load factor of both passengers is 50% of the rated load capacity, the vehicle can be operated with a small amount of electric power at the time of an average load by the passengers, which has the effect of reducing the total amount of energy for driving.

Further, as described above, the present invention is provided with a first drive unit and a second drive unit having different rated operation speeds. Then, in the off-hours of use, when only one of the first car and the second car can cope, when there are many passengers, the high-speed drive of the above two persons is operated, and when there are few passengers, the above two persons are operated. To operate the low-speed driving machine.

Thus, both the first car and the second car are arranged on one first hoistway in the hoistway, and one counterweight corresponding to the both is provided. Thereby, the elevator device is simply configured, and there is an effect that the area occupied by the hoistway in the building is reduced to save space. In addition, since one counterweight can cope with both of the above, the production of the counterweight,
The number of installation steps can be reduced, which has the effect of reducing costs. Further, the two are suspended by a pair of main ropes arranged in parallel with each other.
Accordingly, the number of steps for hanging the main rope can be reduced, and the number of steps for installation can be reduced, which has an effect of reducing costs. In addition, when there is only a large number of passengers, the high-speed drive of the twins is operated when only one of the first and second cages can be used during off-peak hours, and when the number of passengers is small, the twins are used. Drive the low-speed drive in. As a result, it is possible to operate with a small amount of electric power according to the number of passengers, and there is an effect of reducing the amount of energy for driving. In addition, there is an effect that one of the above two can be downsized and the equipment cost can be reduced.

Further, as described above, the present invention is provided with a first car and a second car, one of which is manufactured as a passenger elevator and the other is manufactured as a cargo elevator.

Thus, both the first car and the second car are arranged in one first hoistway in the hoistway, and one counterweight corresponding to the both is provided. Thereby, the elevator device is simply configured, and there is an effect that the area occupied by the hoistway in the building is reduced to save space. In addition, since one counterweight can cope with both of the above, the production of the counterweight,
The number of installation steps can be reduced, which has the effect of reducing costs. Further, the two are suspended by a pair of main ropes arranged in parallel with each other.
Accordingly, the number of steps for hanging the main rope can be reduced, and the number of steps for installation can be reduced, which has an effect of reducing costs. In addition, since one of the first car and the second car can be used as a passenger elevator and the other can be used as a freight elevator, the elevator user can use the passenger elevator and freight elevator at the same elevator platform as necessary. Select and use. This has the effect of improving convenience.

[Brief description of the drawings]

FIG. 1 is a view showing a first embodiment of the present invention and is a conceptual elevation view.

FIG. 2 is a view for explaining a state in which the car shown in FIG. 1 is raised and lowered.

FIG. 3 is a view for explaining another elevator state of the car in FIG. 1;

FIG. 4 is a view for explaining another elevating state of the car in FIG. 1;

FIG. 5 is a view for explaining another elevator state of the car shown in FIG. 1;

FIG. 6 is an elevation view conceptually showing a conventional elevator apparatus.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 hoistway, 22 1st hoistway, 23 2nd hoistway, 24 1st car, 25 2nd car, 26 1st drive machine, 28 2nd drive machine, 30 counterweight, 31 suspension wheel, 32 main rope .

Claims (4)

[Claims] 1. A first car that moves up and down a first hoistway of a hoistway, a second car that is disposed above the first car and moves up and down the first hoistway, and that is provided near the hoistway. The first drive and the second drive, and a counterweight that lifts and lowers the second lift path of the hoistway, and one end is connected to the first car and wound around the first drive, and then the An elevator apparatus comprising: a main weight connected to the second driving machine while being wound around a suspension wheel of a counterweight, and having the other end connected to the second car. 2. The weight of the counterweight is made to correspond to the sum of the weight of each of the first car and the second car plus the sum of half the rated load of each of the two cars. The elevator apparatus according to claim 1, wherein: 3. A case in which the first and second driving machines have different rated operating speeds from each other, and can be handled by only one of the first and second cars during off-peak hours. 3. The system according to claim 1, wherein when the number of passengers is large, the high-speed drive of the twins is driven, and when the number of passengers is small, the low-speed drive of the twins is driven. The elevator device according to any one of the above. 4. The elevator apparatus according to claim 1, wherein one of the first car and the second car is a passenger elevator and the other is a cargo elevator.