JP4942264B2 - Double deck elevator and control method thereof - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention has a structure in which two upper and lower cabs are connected to each other, the relative distance between the upper and lower cabs is automatically adjusted according to the height of each stop floor, and these cabs can be landed simultaneously. The present invention relates to a double deck elevator with a space adjustment mechanism and a control method thereof.
[0002]
[Prior art]
In a high-rise building or the like, in order to improve the space efficiency of a building, a double deck elevator that can be transported in large quantities by configuring a car room in two upper and lower stages is often used as a vertical transportation means in the building.
[0003]
By the way, in high-rise buildings, the distance between the floors of adjacent floors is not always constant. Thus, even when the distance between the floors of adjacent floors is not constant, the double deck elevator has upper and lower cabs. If you do not have a structure that allows you to land almost simultaneously, that is, change the distance between the cars, you cannot open and close the upper and lower cabs at the same time, and you cannot carry people efficiently.
[0004]
As this type of double deck elevator capable of changing the distance between the upper and lower cabs, for example, Japanese Patent Laid-Open No. 48-76242 discloses an upper cab 2 and a lower cab provided in an elevator car frame 1 as shown in FIG. A double deck elevator is disclosed in which a driving device, for example, an actuator 6 is attached to one of the cabs 4, for example, the lower cab 4, and the relative distance between the upper and lower cabs is changed by changing the height of the cab. .
[0005]
Japanese Patent Laid-Open No. 10-279231 discloses a crank mechanism 7a, 7b between the upper cab 2 and the lower cab 4, as shown in FIG. While moving in the opposite directions while balancing, the motor 8 and the ball screw 9 are driven in opposite directions while being balanced by the weight of each other, and according to the height of the first floor of the building, the upper and lower cars A double-deck elevator is disclosed in which the rooms can be landed almost simultaneously and the distance between the upper and lower cabs can be changed with less power consumption.
[0006]
As described above, in a double deck elevator, it is essential to change the distance between the upper and lower cabs. Normally, the distance between the cabs is adjusted gently while the elevator is moving up and down, and the passengers feel uneasy or uncomfortable. It is designed not to feel pleasure.
[0007]
For example, as shown in FIG. 12, the speed of the upper or lower cab in the car frame changes as shown in S3 with respect to the speed change S1 of the elevator car frame having the upper and lower cabs inside, and as a result, The speed of the upper or lower cab changes as shown in S2. In this figure, t1 is the time point when the elevator starts to move up and down, moves at a constant acceleration from time t2, moves at a constant speed from time t2 to time t3, decelerates at a constant acceleration from time t3, and at the destination floor at time t4. Stop.
[0008]
Further, as shown in FIG. 13, since the vehicle is decelerated (S1) from the time point t3 in the middle of the elevator movement, and the upper or lower cab is relatively moved from that point (S3), as a result, until the time point t4 as shown in S2. After moving at a constant speed, it feels like it has slowed down.
[0009]
By the way, as described above, if the moving floor of the elevator is large and the moving time is relatively long, there is room for changing the relative distance between the cabs according to the destination floor, and there are few problems. However, when there is a so-called short run, that is, when the travel time is short, such as a ground floor call response or a nearby floor call response that is added during traveling, there may not be enough time to set the upper and lower cabs to the required interval. In such a conventional double deck elevator, there is a concern of causing anxiety and discomfort to the passengers.
[0010]
[Problems to be solved by the invention]
As described above, in the conventional double deck elevator, there is a concern that anxiety and discomfort are given to the passenger in the case of a short run. The present invention has been made in view of the problems of such a conventional double deck elevator, and does not give passengers anxiety or discomfort even when the destination floor is close, and a control method therefor The purpose is to provide.
[0012]
[Means for Solving the Problems]
According to claim 1 of the present invention, the car frame for mounting the upper cab and lower cab moves in opposite direction to the upper cage chamber and the lower cage chamber vertically, and destination floor of the car frame A car-to-car distance changing means for changing a distance between the upper car room and the lower car room based on a distance between the adjacent floors, a car frame moving means for moving the car frame up and down, Travel time calculation means for calculating the travel time to the destination floor, and both the cars by the distance between the car rooms to obtain the distance between the upper and lower cabs required when arriving at the destination floor. The inter-car distance change time calculating means for calculating the inter-car distance change time required for setting the rooms to the interval, and the inter-car distance change time calculated by this means are calculated by the moving time calculating means. Travel time The vehicle room distance changing means increases the speed of changing the distance between the two car rooms by increasing the speed of changing the distance between the car rooms, thereby shortening the time for changing the distance between the car rooms. Providing the characteristic double deck elevator.
[0013]
According to claim 2 of the present invention, a car frame on which the upper car room and the lower car room are mounted, the upper car room and the lower car room are moved in opposite directions, and the destination floor of the car frame A car-to-car distance changing means for changing a distance between the upper car room and the lower car room based on a distance between the adjacent floors, a car frame moving means for moving the car frame up and down, The travel time calculating means for calculating the travel time to the destination floor, and the distance between the upper cab and the lower cab required when arriving at the destination floor and determining the distance between the two cabs When the required inter-car distance change time calculating means for calculating the required inter-car distance change time and the inter-car distance change time calculated by this means is longer than the moving time calculated by the moving time calculating means, Move the car frame By decelerating the moving speed of the car frame by the steps, the moving time calculated by the moving time calculating means and the car frame moving speed reducing means that lengthens the moving time to the destination floor and the distance change time between the car rooms If the moving speed of the car frame cannot be reduced by the car frame moving speed reducing means, and the speed of changing the distance between the two car rooms by the changing distance between the car rooms is increased, A distance change speed increasing unit between the car rooms for shortening the distance change time, the distance change time between the car rooms is longer than the movement time calculated by the movement time calculation means, and the car frame movement deceleration means When the movement speed of the car frame is reduced and the speed of changing the distance between the two car rooms cannot be increased by the speed changing means for changing the distance between the car rooms, And a closed door holding means for holding the doors of the two cabs closed until the distance between the upper cab and the lower cab reaches a predetermined distance. .
[0015]
According to claim 6 of the present invention, a moving time calculating step for calculating a moving time to a destination floor of a car frame in which the upper car room and the lower car room are mounted, and the upper car required when the car arrives at the destination floor. The inter-car distance change time calculating step for calculating the inter-car distance change time required to obtain the distance between the room and the lower car room and setting the distance between the two car rooms, and the inter-car distance change time calculation When the change time between the car rooms calculated by the step is longer than the movement time calculated by the movement time calculation step, the change speed between the two car rooms is increased to increase the change distance between the car rooms. By shortening, the time for changing the distance between the cabs is shortened, and the upper cab and the lower cab are moved in directions opposite to each other, and the inter-floor distance between the destination floor and its adjacent floors. And changing the distance between the upper cab and the lower cab based on the cab, and changing the distance between the upper cab and the lower cab when changing the distance between the upper cab and the lower cab. A method for controlling a double deck elevator comprising a car frame moving step for moving a frame up and down is provided.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0017]
FIG. 1 shows an example of the overall configuration of a double deck elevator according to an embodiment of the present invention. In this figure, an upper cab 12 and a lower cab 14 are mounted on the car frame 11, and these cabs 12, 14 are separated by a predetermined distance by an inter-cab drive 15.
[0018]
The inter-cab drive unit 15 includes a crank 17, a motor 18, and a ball screw 19, and moves the upper cab 12 and the lower cab 14 up and down and in opposite directions to be separated by a predetermined distance.
[0019]
The car frame 11 on which the upper car room 12 and the lower car room 14 are mounted is connected to a counterweight 22 via a rope 21 and is moved (get on and off) vertically by a sheave 24 of a hoisting machine 23. The hoisting machine 23 is provided with a car position detector (not shown) configured by, for example, a pulse generator or a proximity switch, and detects the position of the car frame 11. The car position signal P <b> 1 detected by the car position detector is input to the hoisting machine control device 25, the movement time calculation circuit 26, and the car room distance change time calculation circuit 27.
[0020]
The signal P2 of the desired floor and the distance between the two car rooms pushed by the passenger who has entered the upper car room 12 or the lower car room 14 is the hoisting machine 25, the movement time calculating circuit 26, and the car room distance changing time calculating circuit 27. And the car room position control device 28.
[0021]
The hoisting machine control device 25 controls the hoisting machine 23 to move the car frame 11 to a predetermined position in the vertical direction according to the desired floor pushed by the passenger who entered the upper car room 12 or the lower car room 14. Move.
[0022]
The movement time calculation circuit 26 calculates the movement time until the car frame 11 reaches the passenger's desired floor. On the other hand, the car-to-car distance change time calculation circuit 27 refers to the car-to-car distance related to the floor height dimension of each floor, stored in advance in the storage device 29 in the car room position control device 28, and determines the current distance. The time for changing the distance between the upper cab 12 and the lower cab is calculated by that distance.
[0023]
The cab position control device 28 calculates the distance between the upper and lower cabs, controls the cab drive device 15, and stores the floor height dimension of the destination floor stored in the storage device 29 after the destination floor is determined. It will be based on the distance.
[0024]
When the elevator car is stopped, that is, when the car inter-cabinet drive device 15 is operated when the car frame 11 is stationary, the car room position control device 28 indicates that the distance between the car compartments is changed. A signal P3 transmitted to the passenger is sent to the display device 31a installed in the upper cab 12 and the display device 31b installed in the lower cab 14, and a message to that effect is displayed.
[0025]
The hoisting machine control device 25 controls the hoisting machine 23 based on a signal P1 indicating the car position of the car frame 11 and a signal P2 including information on the desired floor of the passenger.
[0026]
Next, the operation of the double deck elevator according to this embodiment of the present invention will be described with reference to the drawings. FIG. 2 shows the processing flow of the entire double deck elevator. First, when the destination floor is indicated by the passenger, in step S201, the normal travel time (X) required to travel from the current floor to the destination floor is calculated in the travel time calculation circuit 26. The
[0027]
Next, in step S202, the distance between the upper and lower cabs 12 and 14 which is appropriate between the current distance between the upper and lower cabs and the adjacent floor on the destination floor is determined in the inter-car room distance change time calculation circuit 27. A normal car-to-car distance change time (Y) is calculated when the car-to-car distance is changed based on these distances.
[0028]
In the following step S203, step S204 and step S205, the movement time X calculated in the movement time calculation circuit 26 and the distance change time calculation circuit 27 between the cars in the car room position control device 28, and the car room, respectively. The distance change time Y is compared. First, in step S203, if the travel time X is greater than the inter-car distance change time Y, the process moves to step S301 in FIG. 3 to determine whether the elevator cab has arrived at the destination floor. If the elevator cab has arrived at the destination floor, it is determined in step S302 whether or not the distance between the upper and lower cabs has been changed to the distance corresponding to the destination floor, and the process ends when this change is completed. It becomes. If the elevator cab does not arrive at the destination floor, step S301 is repeated until it arrives, and if the change in the distance between the upper and lower cabs is not completed, step S302 is repeated.
[0029]
By the way, when the movement time X is longer than the car room distance change time Y, it is considered that the car frame and the speed characteristic curve of the car room distance change have a relationship as shown in FIG.
[0030]
In FIG. 4, the speed characteristic curve S11 of the car frame 11 represents the speed characteristic of the car frame 11, and the speed increases at a constant acceleration from time t11 to time t12. The speed is constant from time t12 to time t13. The vehicle decelerates at a constant acceleration from time t13, and stops at the destination floor at time t14. Therefore, the travel time X described above is the time from time t11 to time t14. On the other hand, the moving speed characteristic curve S12 between the upper cab 12 and the lower cab 14 shows that the distance between the two cabs is changed from time t15 as shown in FIG. 4 until the elevator stops at the destination floor. The change of the distance between the cars is completed at time t14. Therefore, the time from the time point t15 to the time point t14 is the above-described inter-cab distance change time Y.
[0031]
As shown in FIG. 4, when the traveling time X is longer than the inter-car distance change time Y, from the time t15 so that the inter-car distance becomes an appropriate distance before the elevator arrives at the destination floor. You can start changing the distance between the cars. Therefore, when X> Y in step S203 of FIG. 2, the process proceeds to step S206, and the distance between the car rooms starts to change from the time point t = XY (t15).
[0032]
On the other hand, if X> Y is not satisfied, the process proceeds to step S204 in FIG. 2 and it is determined whether or not the movement time X is substantially the same as the inter-car room distance change time Y. Even if both times are the same, as shown in FIG. 3, it is determined in step 301 whether the elevator cab has arrived at the destination floor, and if it has arrived, whether the change in the distance between the upper and lower cabs has been completed in step S302. When it is determined and completed, the process ends.
[0033]
In this case, the speed characteristic curve S21 of the car frame and the moving speed curve S22 between the cars have a relationship as shown in FIG.
[0034]
That is, the car frame 11 moves at a constant acceleration from time t21, moves to a constant speed from time t22, decelerates at a constant acceleration from time t23, and stops on the destination floor at time t24. The travel time X is from time t21 to time t24. On the other hand, the change in the distance between the car rooms is also performed from time t21. Similarly, the speed is increased to a constant speed, and then the speed is reduced and the elevator arrives at the destination floor at time t24. To complete.
[0035]
On the other hand, if the movement time X is not longer than the car room distance change time Y (step S203) and not the same (step S204), it is determined in step S205 whether X is smaller than Y. Usually, it is a trap of Y, but when that is not right, it returns to step S201 and calculates movement time again.
[0036]
When the movement time X is smaller than the car-room distance change time Y, the car-room distance change is not completed within the movement time at a normal speed. Therefore, in step S208, it is first determined whether the elevator speed can be reduced. If it is possible to reduce the speed of the elevator, the process proceeds to step S209 to reduce the speed of the elevator. As a result, the travel time X becomes longer and the time to go to the destination floor becomes longer, but the relationship between X and Y is as shown in FIG. 5, and when the passenger arrives at the destination floor, Because the change is complete, passengers are less likely to feel discomfort. In particular, when X is smaller than Y in this way, since it is a case of a so-called short run where the destination floor is close, the elevator travel time is relatively short and therefore does not feel so inconvenient.
[0037]
If the elevator speed cannot be decreased in step S208, the process proceeds to step S210, and it is determined whether the speed of the change in the distance between the cars can be increased more than usual. When the speed of the change in the distance between the cars can be increased, the change speed in the distance between the cars can be shortened by increasing the speed of the change in the distance between the cars in step S211. Therefore, in this case as well, the above Y is almost equal to X, so that both can be in the relationship shown in FIG. 5, and the change in the distance between the cars can be completed during the movement of the elevator. There is little discomfort.
[0038]
If the elevator speed cannot be reduced and the change speed of the car room distance cannot be increased, the result is No in step S210, and the process proceeds to the process shown in FIG.
[0039]
In this case, it means that the distance between the cars cannot be set to an appropriate distance before the elevator arrives at the destination floor. That is, as shown in FIG. 7, the elevator car frame increases in speed from time t31, decelerates from time t32, and arrives at the destination floor at time t33, as indicated by a speed characteristic curve 31. On the other hand, as shown in the inter-car moving speed curve S32, even if the change of the car-to-car distance is started from time t31, it takes time t34 to obtain an appropriate car-to-car distance. That is, the waiting time Z from the time point t33 to the time point t34 occurs after the movement time X is shorter than the inter-car distance change time Y and the destination floor is reached.
[0040]
In FIG. 6, first, in step S601, it is determined whether or not the change in the inter-car distance is to be changed after arrival at the destination floor. Responses to this are recorded and registered in advance in the program.
[0041]
In step S601, in the case of Y, the process proceeds to step S602. When the elevator is stopped, the change of the distance between the cabs is started simultaneously with the start of the movement, and immediately when the elevator is already moving.
[0042]
In step S603, it is detected whether the elevator cab has arrived at the destination floor, and the change in the distance between the cabs is continued until the elevator cab arrives at the destination floor. When the elevator cab arrives at the destination floor, the process moves to step S604, and in order to notify passengers in the cab, a message such as "Please wait a little" is displayed on the display board installed at the top of the cab. Continue changing distance.
[0043]
Then, in step S605, it is detected whether the change of the distance between the car rooms has been completed. When the change is completed, in step S606, a display such as “Wait for waiting” is displayed on the display board in the upper part of the car room. Open the door.
[0044]
In addition, the contents to inform passengers in the car room are indicated with or without the above indications, "Please wait a moment" or "Please wait." Also good.
[0045]
On the other hand, if the change in the distance between the car rooms is not continued after arrival in step S601, it is detected in step S611 whether the elevator is traveling. If not, the error is determined in step S612, and the process is performed. Do.
[0046]
Further, if the elevator is running in step S611, it is impossible to change the distance between the car rooms to an appropriate distance while still arriving at the destination floor. Therefore, in step S613, the call is temporarily ignored and the destination floor is reached. do not stop. Then, in step S614, the next call response floor is selected, the process returns to the start, and as described above, the movement time and the car room distance change time are calculated again.
[0047]
According to the above-described embodiment of the present invention, even in the case of a short run where the destination floor is close, it is confirmed whether the moving speed of the car room can be lowered or the speed of changing the distance between the car rooms can be raised. As long as the distance between the car rooms continues to change even after arriving at the destination floor, there are few such cases, and in such cases, the passengers are notified by display or voice so that the anxiety can be further reduced. .
[0048]
According to the above-described embodiment of the present invention, it is always the same when the speed of the movement of the car frame and the movement of the car is increased and when the speed of the car is decelerated, and the moving time X before the start of the movement of the elevator In addition, it has been described that the distance change time Y between the car rooms can be calculated.
[0049]
However, the call button in the car room is actually pressed while the elevator is moving, and at that time, the travel time to the destination floor pressed and the time for changing the distance between the car rooms are calculated accordingly, It is necessary to perform processing such as Therefore, for example, as shown in FIG. 8, when the moving speed of the elevator car frame is increased, the acceleration is a predetermined acceleration. When decelerating from the time t41, the acceleration of the deceleration is decreased and the moving time X to the destination floor is gained. When reducing the inter-room distance moving speed, increase the degree to shorten the overall car inter-room distance change time Y, and complete the change of the inter-room distance when arriving at the destination floor You can also As described above with reference to FIG. 6, when the travel time X is as long as possible and the distance change time Y between the cabs is as short as possible, Y cannot be less than or equal to X. Do not open the cab door until the distance change is complete.
[0050]
Furthermore, when the destination floor button is pressed during the movement of the elevator, the moving speed can be reduced at that point as shown in FIG. In this case, in the characteristic curve S51, the elevator was moving at a constant speed until the time t51, but decelerated from this time and became a constant speed again from the time t52, and the moving speed was reduced again from the time t53, and the destination at the time t54. It shows the characteristics of arriving at the floor. S52 shows a distance change speed characteristic curve between the car rooms, and indicates that the change of the car room distance is completed at time t54.
[0051]
Further, in the double deck elevator according to the present invention, the speed for changing the distance between cars can be changed in the middle of changing the distance between cars.
[0052]
In this way, even if the passenger presses the destination floor in the middle of moving the elevator by changing the moving speed of the elevator car frame or the distance change speed between the cars, the travel time from that point to that destination floor It is possible to complete the change of the distance between the car rooms within the travel time as much as possible and to calculate the time for changing the distance between the car rooms and flexibly according to those times. You can arrive at the destination floor without feeling uncomfortable.
[0053]
【Effect of the invention】
As described above, according to the present invention, it is possible to obtain a double deck elevator and its control method that do not give passengers anxiety and discomfort even in the case of a so-called short run where the destination floor is close.
[Brief description of the drawings]
FIG. 1 is a diagram showing a configuration example of a double deck elevator according to an embodiment of the present invention.
FIG. 2 is a view for explaining a control operation of the double deck elevator according to the embodiment of the present invention.
FIG. 3 is a view for explaining a control operation of the double deck elevator according to the embodiment of the present invention.
FIG. 4 is a view for explaining control characteristics of a double deck elevator according to an embodiment of the present invention.
FIG. 5 is a view for explaining another control characteristic of the double deck elevator according to the embodiment of the present invention.
FIG. 6 is a view for explaining a control operation of the double deck elevator according to the embodiment of the present invention.
FIG. 7 is a view for explaining still another control characteristic of the double deck elevator according to the embodiment of the present invention.
FIG. 8 is a view for explaining still another control characteristic of the double deck elevator according to the embodiment of the present invention.
FIG. 9 is a view for explaining still another control characteristic of the double deck elevator according to the embodiment of the present invention.
FIG. 10 is a view showing a structure of an example of a conventional double deck elevator.
FIG. 11 is a view showing the structure of another example of a conventional double deck elevator.
FIG. 12 is a diagram for explaining control characteristics of a conventional double deck elevator.
FIG. 13 is a diagram for explaining another control characteristic of a conventional double deck elevator.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11 ... Car frame, 12 ... Upper car room, 14 ... Lower car room, 15 ... Drive apparatus between car rooms, 17 ... Crank, 18 ... Motor, 21 ... Rope , 22 ... counter weight, 23 ... winding machine, 24 ... sheave, 25 ... winding machine control device, 26 ... moving time calculation circuit, 27 ... change in distance between car rooms Time calculation circuit, 28... Cab position control device, 29... Storage device, 31 a, 31 b.

Claims (6)

A car frame carrying the upper and lower cabs;
A car that moves the upper car room and the lower car room in opposite directions and changes the distance between the upper car room and the lower car room based on the inter-floor distance between the destination floor and the adjacent floor. A room-to-room distance changing means;
A car frame moving means for moving the car frame up and down;
Travel time calculating means for calculating the travel time to the destination floor;
Time required for changing the distance between the car rooms required to obtain the distance between the upper car room and the lower car room required when arriving at the destination floor and to set the distance between the two car rooms by the inter-car room distance changing means. A cab-to-room distance change time calculating means for calculating
By increasing the changing speed of the distance between the two car rooms by the inter-car distance changing means when the inter-car distance changing time calculated by this means is longer than the moving time calculated by the moving time calculating means. A double deck elevator, comprising: a car room distance changing speed increasing means for shortening the car room distance changing time. A car frame carrying the upper and lower cabs;
A car that moves the upper car room and the lower car room up and down in opposite directions and changes the distance between the upper car room and the lower car room according to the distance between the destination floor and the adjacent floor. A room-to-room distance changing means;
A car frame moving means for moving the car frame up and down;
Travel time calculating means for calculating the travel time to the destination floor;
Change the inter-car distance to calculate the inter-car distance change time required to determine the distance between the upper and lower car rooms required when arriving at the destination floor A time calculation means;
When the car room distance change time calculated by the means is longer than the moving time calculated by the moving time calculating means, the moving speed of the car frame by the car frame moving means is reduced, thereby reducing the destination floor. A car frame moving speed reducing means to lengthen the moving time to
The distance between cabs when the change time between the cabs is longer than the movement time calculated by the movement time calculation means and the movement speed of the cab frame cannot be reduced by the cab frame movement deceleration means. By increasing the change speed of the distance between the two car rooms by the changing means, thereby shortening the time for changing the distance between the car rooms;
The distance change time between the car rooms is longer than the movement time calculated by the movement time calculation means, and the movement speed of the car frame is reduced by the car frame movement reduction means and the distance change speed between the car rooms is increased. When the speed of changing the distance between the two car rooms cannot be increased by the means, the two car rooms are reached until the distance between the upper car room and the lower car room reaches a predetermined interval when arriving at the destination floor. And a door closing holding means for holding the door closed. The door closing and holding means further includes a warning means for calling attention to passengers in both the car rooms when the doors of the upper and lower cabs are held closed. Item 3. A double deck elevator according to item 2 . The double deck elevator according to claim 3 , wherein the alerting means is alerting by voice. The double deck elevator according to claim 3 , wherein the alerting means is alerting by display. A travel time calculation step for calculating the travel time to the destination floor of the car frame carrying the upper car room and the lower car room;
The inter-car distance change time for calculating the distance between the upper car room and the lower car room required when arriving at the destination floor and calculating the inter-car room distance change time required to set the distance between the two car rooms. A calculation step;
When the car-to-car distance change time calculated by the car-to-car distance change time calculating step is longer than the moving time calculated by the moving time calculating step, by increasing the speed of changing the distance between the two car rooms, By shortening the time for changing the distance between the car rooms, the time for changing the distance between the car rooms is shortened, and the upper car room and the lower car room are moved in directions opposite to each other. A step of changing the distance between the cabs to change the distance between the upper cab and the lower cab based on the inter-floor distance with the floor;
A method for controlling a double deck elevator, comprising: a car frame moving step of moving the car frame up and down when the distance between the upper car room and the lower car room is changed.

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