WO2015008345A1

WO2015008345A1 - Elevator device

Info

Publication number: WO2015008345A1
Application number: PCT/JP2013/069376
Authority: WO
Inventors: 圭悟山本
Original assignee: 三菱電機株式会社
Priority date: 2013-07-17
Filing date: 2013-07-17
Publication date: 2015-01-22
Also published as: JPWO2015008345A1; CN105307965B; KR20160020534A; KR101800559B1; CN105307965A; JP6049881B2

Abstract

In this elevator device, at least one landing door opening detection unit detects the opening of a corresponding landing door among a plurality of landing doors. An opening/closing device opens/closes an opening that interconnects the inside/outside of an elevator shaft separately from the landing exit/entrance. An opening/closing unit opens/closes the opening by means of the opening/closing device in accordance with a detection signal from the landing door opening detection unit.

Description

Elevator equipment

The present invention relates to an elevator apparatus in which a car is moved up and down in a hoistway at high speed, and more particularly to reduction of sudden draft noise at a landing.

The landing draft noise is generated by the turbulence of the air flow passing through the gap around the landing door due to the pressure difference between the landing and the hoistway. Also, hall draft noise generally tends to occur in the winter when the outside is cold and the building is warm. This is because the air entering the building from the outside on the lower floor is warmed in the building, and ascending airflow is generated in the hoistway, and it is easy for air to flow from the landing to the hoistway on the lower floor, This is because air easily flows out from the hoistway to the landing and the amount of air passing through the gap around the landing door increases.

In the conventional elevator apparatus, rubber sealing pipes are fixed to the hoistway side of the left and right side frames of the three-way frame. Moreover, the shielding frame is being fixed to the door pocket side edge part of the landing door. When the landing doorway is fully closed, the shielding frame comes into contact with the sealing tube, so that noise generated by raising and lowering the car is prevented from being transmitted to the landing (see, for example, Patent Document 1).

Also, in other conventional elevator devices, a flexible shielding plate is fixed to the end of the landing door on the door pocket side. The shielding plate contacts the side frame of the three-way frame when the landing entrance is fully closed. Thereby, the amount of air flowing into the hoistway from the gap between the side frame and the landing door is reduced (see, for example, Patent Document 2).

Furthermore, in the conventional elevator hoistway device, draft detecting means such as an air flow meter, an anemometer, or a noise meter is provided in the clearance at the lower landing doorway. A draft control means including an electric damper is provided in the air flow path that communicates the hoistway and the outside of the building. When the detection value by the draft detection means exceeds the set value, the air flow path is opened by the draft control means, and air outside the building flows into the hoistway (see, for example, Patent Document 3).

JP-A-8-239185 JP-A-8-53279 JP-A-4-213579

As shown in

Patent Documents

1 and 2, if the landing doors on all floors are closed, sealing the clearance at the landing doorway reduces the amount of air flowing into or out of the hoistway. Therefore, it is effective as a countermeasure against draft noise.

However, when the car arrives at the destination floor and the car door and the landing door are opened, the inside of the hoistway and the landing are communicated. At this time, if there is a pressure difference between the landing and the hoistway, an air flow is generated.

Here, if the landing doors on all floors are closed, the hoistway is in an equilibrium state where the law of conservation of mass is almost established. On the other hand, when the landing door on a certain floor is opened, the equilibrium state in the hoistway collapses and changes to another state. That is, the amount of air flowing from the landing to the hoistway and the amount of air flowing out from the hoistway to the landing vary.

For example, in winter, ascending airflow is likely to occur in the hoistway, so when the landing door on the upper floor is opened, the amount of air flowing out from the hoistway to the landing increases. As a result, due to the law of conservation of mass, the flow rate of air flowing from the landing to the hoistway increases on the lower floor. At this time, if the landing door on the lower floor is closed and the clearance at the entrance / exit is sealed, air will try to forcefully flow through the slight clearance and the wind speed will increase suddenly. A heavy platform draft noise is generated, which causes discomfort to users near the lower floor platform.

The above describes the case where the landing door on the upper floor is opened. However, when the landing door on the lower floor is opened, sudden landing draft noise may occur on other floors.

In the conventional elevator hoistway device shown in Patent Document 3, sudden draft noise can be suppressed, but it is necessary to add draft detection means. Also, in order to monitor and respond to draft noise on multiple floors, it is necessary to install draft detection means on each monitoring floor, and the installed equipment becomes large-scale, causing problems in terms of cost and space.

The present invention has been made to solve the above-described problems, and an object thereof is to obtain an elevator apparatus that can suppress sudden draft noise with a simple configuration.

The elevator apparatus according to the present invention detects at least opening of a corresponding landing door among at least one car that is moved up and down in a hoistway, a plurality of landing doors provided in a landing on a plurality of floors, and a landing door. One landing door opening detection unit, at least one opening / closing device that opens / closes at least one opening communicating with the inside / outside of the hoistway other than the landing doorway, and a switching device according to a detection signal from the landing door opening detection unit An opening / closing control unit for opening and closing the opening is provided.

In the elevator apparatus according to the present invention, the opening is opened and closed by the opening / closing device in accordance with the detection signal from the landing door opening detection unit, and therefore, an unexpected draft is obtained with a simple configuration using the detection signal from the landing door opening detection unit. Noise can be suppressed.

1 is a schematic configuration diagram showing an elevator apparatus according to Embodiment 1 of the present invention. It is a front view which shows the boarding place of FIG. FIG. 3 is a sectional view taken along line III-III in FIG. 2. It is a block diagram which shows the principal part of the elevator apparatus of FIG. It is a front view which shows the boarding place of the elevator apparatus by Embodiment 2 of this invention. FIG. 6 is a sectional view taken along line VI-VI in FIG. 5. It is a schematic block diagram which shows the elevator apparatus by Embodiment 3 of this invention.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
Embodiment 1 FIG.
1 is a schematic configuration diagram showing an elevator apparatus according to Embodiment 1 of the present invention. In the figure, a machine room 2 is provided in the upper part of the hoistway 1. In the machine room 2, a hoisting machine (driving device) 3, a deflecting wheel 4, and an elevator control device 5 are installed. The hoisting machine 3 includes a drive sheave 6, a hoisting machine motor that rotates the driving sheave 6, and a hoisting machine brake that brakes the rotation of the driving sheave 6.

A suspension body 7 is wound around the driving sheave 6 and the deflecting wheel 4. As the suspension body 7, a plurality of ropes or a plurality of belts are used. A car 8 is connected to the first end of the suspension body 7. A counterweight 9 is connected to the second end of the suspension body 7.

The car 8 and the counterweight 9 are suspended in the hoistway 1 by the suspension body 7, and are raised and lowered in the hoistway 1 by the hoisting machine 3. The elevator control device 5 raises and lowers the car 8 at a set speed by controlling the rotation of the hoisting machine 3.

In the hoistway 1, a pair of car guide rails (not shown) for guiding the raising and lowering of the car 8 and a pair of counterweight guide rails (not shown) for guiding the raising and lowering of the counterweight 9 are installed. Has been. A car shock absorber 10 and a counterweight shock absorber 11 are installed at the bottom of the hoistway 1.

The car 8 is provided with a pair of car doors 12 that open and close the car doorway, and a car door device 13 that opens and closes the car door 12 and guides the opening and closing operation of the car door 12. The car door 12 is suspended from the car door device 13.

A plurality of halls are provided with a pair of hall doors 14 for opening / closing the hall doorway and a hall door device 15 for guiding the opening / closing operation of the hall door 14. The landing door 14 is suspended from the landing door device 15. When the car 8 reaches the floor, the landing door 14 on that floor opens and closes in conjunction with the opening and closing operation of the car door 12.

When the hall door 14 is located at the fully closed position, the gap between the hall door 14 and the hall entrance is almost sealed.

Further, the hoistway 1 is provided with a plurality of openings 16 (FIG. 2) communicating with the inside and outside of the hoistway 1. In this example, the opening 16 is provided between the hall on the plurality of floors and the hoistway 1. Each opening portion 16 is provided with an opening amount adjusting device 17 as an opening / closing device. The opening amount adjusting device 17 opens and closes the corresponding opening 16. Further, the opening amount adjusting device 17 adjusts the opening amount of the corresponding opening 16.

The opening amount adjusting device 17 includes an opening / closing member that opens and closes the opening 16, and an opening / closing drive motor that displaces the opening / closing member between an open position that opens the opening 16 and a closed position that closes the opening 16. ing. Moreover, as the opening amount adjusting device 17, for example, a device having a louver structure that can be automatically opened and closed can be used.

FIG. 2 is a front view showing the landing of FIG. 1, and FIG. 3 is a sectional view taken along line III-III of FIG. Three-way frames 18 are provided on both the left and right sides and the upper part of the landing entrance. The opening 16 of the first embodiment is provided on the upper frame of the three-way frame 18 so as to face the landing entrance. The opening amount adjusting device 17 is provided on the upper frame of the three-way frame 18.

FIG. 4 is a block diagram showing a main part of the elevator apparatus of FIG. Each landing door device 15 is provided with an interlock device (not shown) for locking the landing door 14. Each interlock device is provided with an interlock switch 19 that detects that the landing door 14 is locked in the fully closed position.

The detection signal from the interlock switch 19 is input to the elevator control device 5. When the car 8 arrives at a certain floor and the landing door 14 on that floor is opened, the interlock switch 19 is turned off.

For this reason, in the elevator control device 5, whether or not the landing doors 14 of all the floors are fully closed depending on the state of the interlock switch 19, and if not, which floor of the landing doors 14 is opened. I understand. The landing door opening detection unit of the first embodiment is an interlock switch 19.

The elevator control device 5 opens and closes the opening 16 by the opening amount adjusting device 17 in response to a detection signal from the interlock switch 19. Specifically, when the elevator control device 5 detects that the landing door 14 of any floor is opened, it identifies which floor of the landing door 14 is opened. Then, depending on which floor landing door 14 is opened, which floor opening 16 is opened is selected. The opening / closing control unit of the first embodiment is an elevator control device 5.

When the landing doors 14 on all the floors are fully closed, draft noise can be reduced by reducing the air flow between the landing and the hoistway 1 as much as possible. For this reason, a highly airtight structure (for example, a smoke-proof door) is applied to the landing door 14.

However, if the sealing between the hall door 14 and the hall entrance / exit is enhanced, when the hall door 14 on any floor is opened, sudden draft noise may occur as described above.

In contrast, when the elevator control device 5 according to the first embodiment detects that any of the landing doors 14 is opened, it opens the opening 16 on the other floor and positively sends air to the opening 16. To distribute. As a result, the flow of air that is forced to pass through a slight gap between the landing door 14 and the landing doorway in the fully closed position is suppressed, and sudden draft noise is prevented from being generated.

For example, it is assumed that the stop floors of the car 8 are floors 1 to 20, the car 8 stops on the first floor (the lowest floor), and the landing door 14 on the first floor is opened. In the winter, air easily flows from the landing to the hoistway 1 in the lower floor area, so that a large amount of air flows into the hoistway 1 when the landing door 14 on the first floor is opened.

On the other hand, on the 20th floor (the top floor), air easily flows from the hoistway 1 to the landing. growing.

For this reason, when the elevator control device 5 detects that the interlock switch 19 on the first floor is turned off, the opening control device 17 on the 20th floor opens the opening 16 on the 20th floor. This prevents sudden draft noise from occurring at the 20th floor hall.

Moreover, in addition to the 20th floor, the openings 16 near the 20th floor, for example, the 19th floor and the 18th floor may be opened. On the other hand, since the landing door 14 is open on the first floor, the opening 16 on the first floor is closed. It is also preferable to close the openings 16 in the vicinity of the first floor, for example, the second and third floor openings 16.

When the car 8 stops on the 20th floor and the landing door 14 on the 20th floor is opened, a large amount of air flows out from the hoistway 1 to the landing on the 20th floor, and the lower floor area, particularly the first floor which is the entrance floor. A large amount of air tends to flow into the hoistway 1 from the landing.

Therefore, when the elevator control device 5 detects that the interlock switch 19 on the 20th floor is turned off, the opening adjustment device 17 on the first floor opens the opening portion 16 on the first floor. This prevents sudden draft noise from occurring at the landing on the first floor.

Further, in addition to the first floor, openings 16 in the vicinity of the first floor, such as the second and third floors, may be opened. On the contrary, since the landing door 14 is open on the 20th floor, the opening 16 on the 20th floor is closed. It is also preferable to close the openings 16 on the 20th floor, for example, the 19th and 18th floors.

Thus, the elevator control device 5 closes all the openings 16 when the landing doors 14 of all the floors are closed. Further, the elevator control device 5 opens at least the opening 16 on the uppermost floor when the landing door 14 on the lowermost floor is opened. Further, the elevator control device 5 opens at least the opening 16 on the lowermost floor or the entrance floor when the landing door 14 on the uppermost floor is opened. Thereby, the flowing air can be maintained in a relatively well-balanced state with the lower floor landing → the hoistway 1 → the higher floor landing.

In such an elevator apparatus, an opening 16 communicating between the inside and outside of the hoistway 1 is provided between the hoistway 1 and the landing, an opening amount adjusting device 17 is provided in the opening 16, and a detection signal from the interlock switch 19 is provided. Accordingly, since the opening 16 is opened and closed by the opening amount adjusting device 17, sudden draft noise can be suppressed with a simple configuration using the detection signal from the interlock switch 19.

Also, when it is detected that the landing door 14 of any floor is opened, the floor 16 of the opening 16 is selected depending on which floor of the landing door 14 is opened. The occurrence of sudden draft noise on any floor can be suppressed.

Furthermore, since the opening of the landing door 14 is detected using a signal from the existing interlock switch 19, the configuration can be further simplified.

Furthermore, since the opening part 16 is provided in the three-way frame 18, it is not necessary to newly construct an opening part on the building side, and the deterioration of the installation property can be prevented.
In addition, since the opening 16 is provided in the upper frame of the three-way frame 18 that is difficult to be seen by the user, it is possible to suppress a decrease in design properties.

Embodiment 2. FIG.
Next, FIG. 5 is a front view showing the hall of the elevator apparatus according to Embodiment 2 of the present invention, and FIG. 6 is a sectional view taken along line VI-VI in FIG. Although the opening 16 is provided in the three-way frame 18 in the first embodiment, the opening 20 is provided in the landing wall in the second embodiment. The opening 20 is disposed above the landing doorway and communicates the landing and the inside of the hoistway 1. The opening amount adjusting device 17 is provided in the opening 20. Other configurations and operations are the same as those in the first embodiment.

In such an elevator apparatus, since the opening 20 is provided in the landing wall, the design of the three-way frame 18 is not impaired.

Embodiment 3 FIG.
Next, FIG. 7 is a schematic configuration diagram showing an elevator apparatus according to Embodiment 3 of the present invention. In the third embodiment, four cars 8 are moved up and down (parallel running) in one hoistway 1. That is, the hoistway 1 according to the third embodiment is a space in which hoistway portions corresponding to the respective cars 8 are communicated with each other in the lateral direction. The operation of each car 8 is controlled independently of each other or group management controlled. In this case, the opening / closing control unit determines whether the car 16 of each car stops at which floor, and the opening 16 (or from the balance of ventilation in the entire hoistway 1 depending on which floor landing door 14 is opened. It is determined whether the opening 20) needs to be opened or closed.

For example, if all the cars 8 are open on the lower floors, the openings 16 on the higher floors are opened. However, if one car 8 is open on the lower floor, the other car 8 is open on the higher floor, and the other two cars 8 are moving up and down, the ventilation balance is maintained. The openings 16 on each floor may remain closed because they are likely to be closed.

As described above, when two or more cars 8 move up and down one hoistway 1, the opening of the landing doors 14 of all the units facing the hoistway 1 is monitored and the open / close state of the opening 16 is adjusted. There is a need. For that purpose, an open / close control unit to which a detection signal from the interlock switch 19 of all the units is input is necessary.

Even in such an elevator apparatus, sudden draft noise can be suppressed by a simple configuration using the detection signal from the interlock switch 19.

In the third embodiment, the opening 16 does not need to be installed for each unit, and may be provided at one place on each floor.
In the third embodiment, an elevator apparatus in which two or more cars 8 run in parallel is shown. However, the present invention is a type in which two or more cars 8 are arranged in the same place as viewed from directly above. That is, the present invention can also be applied to a one-shaft multi-car type elevator apparatus.

Furthermore, in Embodiment 1, the elevator control device 5 that controls the operation of the car 8 is used as the opening / closing control unit. However, the opening / closing control unit independent of the elevator control device 5 may control the opening / closing of the opening. .

Furthermore, in the above example, the opening 16 (or opening 20) and the opening amount adjusting device 17 are provided on all the floors, but not all floors. For example, the opening is provided only on the entrance floor or the lowermost floor and the uppermost floor, and when the entrance door 14 on the entrance floor or the lowermost floor is opened, the opening on the uppermost floor is opened, and the uppermost floor or the uppermost floor is opened. When the nearby hall door 14 is opened, the opening of the entrance floor or the lowest floor may be opened. Alternatively, the opening may be provided only on the entrance floor or the lowermost floor, and only the control of opening the opening when the landing door 14 near the uppermost floor or the uppermost floor is opened may be performed.

In the above example, the interlock switch 19 is shown as the landing door opening detection unit. However, a switch or sensor different from the interlock switch 19 may be used.
Furthermore, it is possible to determine which floor the car 8 stops in the elevator control device 5 that controls the operation of the car 8, and use the information for detecting the opening of the landing door 14. That is, a landing door opening detection unit and an opening / closing control unit may be provided in the elevator control device 5. In this case, the opening can be opened before the opening operation of the landing door 14 is started.

Furthermore, the opening / closing device may not simply adjust the opening amount, but may simply open and close the opening.
The position of the opening is not limited to the above example. For example, the opening may be provided in the upper end of the side frame of the three-sided frame, the lower end of the side frame of the three-sided frame, or the landing operation panel. Good.

Furthermore, the present invention can be applied to, for example, a machine room-less elevator, a 2: 1 roping type elevator device, a double deck elevator, or the like.

Claims

At least one car lifted and lowered in the hoistway;
Multiple landing doors on multiple floors,
At least one landing door opening detection unit for detecting opening of a corresponding landing door among the landing doors;
At least one opening / closing device that opens / closes at least one opening communicating with the inside / outside of the hoistway other than the entrance / exit, and the opening / closing device opens / closes the opening according to a detection signal from the landing door opening detection unit. The elevator apparatus provided with the opening / closing control part to perform.
Two or more landing door opening detectors detect the opening of the landing doors on two or more floors, respectively.
The openings are respectively provided between landings on two or more floors and the hoistway,
When the opening / closing control unit detects that the landing door of any floor is opened, the opening / closing control unit selects which floor of the opening to open depending on which floor of the landing door is opened. The elevator apparatus according to claim 1.
The elevator apparatus according to claim 2, wherein the opening / closing control unit closes all the openings when the landing doors on all floors are closed.
The elevator apparatus according to claim 2 or 3, wherein the opening / closing controller opens the opening on the top floor when the landing door on the bottom floor is opened.
The elevator apparatus according to any one of claims 2 to 4, wherein the opening / closing control unit opens the opening of the lowermost floor or the entrance floor when the landing door on the uppermost floor is opened. .
The elevator apparatus according to any one of claims 1 to 5, wherein the landing door opening detection unit is an interlock switch.
There is a three-way frame at the entrance / exit,
The elevator apparatus according to any one of claims 1 to 6, wherein the opening is provided in the three-way frame.
The elevator apparatus according to any one of claims 1 to 6, wherein the opening is provided on a landing wall.
Two or more of the cars are adapted to move up and down in one hoistway,
The elevator apparatus according to any one of claims 1 to 8, wherein the opening / closing control unit monitors the opening of the landing doors of all the units facing the hoistway.