JP2008133126A - Elevator device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevator device capable of preventing or reducing ears being plugged up and ear pain feeling without extremely reducing operation efficiency and without requiring a special device. <P>SOLUTION: The elevator device is provided with a control means 10 for registering a destination floor in response to a car calling 7a and landing calling 8a, and accelerating, operating at a rated speed and decelerating the car 1 by outputting an operation instruction to a drive means 5, and operating to the destination floor. The control means 10 calculates a lifting distance from a departure floor to the destination floor of the car 1, sets acceleration or deceleration of the car 1 to be lower as the lifting distance is longer when the lifting distance is longer than a predetermined value so as to prevent or reduce the ears being plugged up and the ear pain feeling by reducing a rate of a change of an atmospheric pressure in the car 1, and at the same time, achieve operation at the rated speed as much as possible and prevent degradation of the operation efficiency. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to an elevator apparatus having a high rated speed installed in a relatively high-rise building, and in particular, an elevator apparatus that prevents or reduces ear clogging and ear pain caused by changes in atmospheric pressure accompanying raising and lowering of a car. It is about.

  In general, high-rise buildings tend to be equipped with elevators having a high rated speed, and some of them are 750 m / min, and some are over 1000 m / min. When a high-speed elevator is used in such a high-rise building, there is a difference in atmospheric pressure between the upper and lower floors. To occur. In other words, the internal pressure of the external ear automatically becomes equal to the external air pressure in response to changes in the external air pressure, but the original pressure is maintained in the middle ear separated by the eardrum. And the pressure inside the middle ear, which causes discomfort due to the feeling of closing the ears, that is, ear clogging.

As a method for improving this phenomenon, conventionally, an exhaust fan and an intake fan that continuously change while changing the amount of change in atmospheric pressure in the car are provided (see, for example, Patent Document 1), or an earache prevention switch in the car. And lowering the raising / lowering speed of the car when this switch is operated (see, for example, Patent Document 2), and when the raising / lowering distance is long, the raising / lowering speed is set low to reduce the change rate of the atmospheric pressure. (For example, refer to Patent Document 3).
Japanese Patent Laid-Open No. 10-330050 (paragraph numbers 0017 to 0022, FIG. 2) JP-A-11-71077 (paragraph numbers 0026 to 0031, FIG. 1) JP 7-112876 (paragraph numbers 0018 to 0026, FIG. 3)

  However, in the case of continuously changing the atmospheric pressure change amount in the above-described car, a special device such as an exhaust fan and an intake fan is required, which increases the weight of the car. The drive device becomes larger and costs increase. In addition, it is unavoidable that the device provided with the earache prevention switch has a low effect for preventing the ear clogging or the earache feeling because it responds after the ear abnormality is sensed. Furthermore, when the lifting speed is set to be low when the predetermined lifting distance is exceeded, the time to reach the destination floor becomes longer and the driving efficiency is lowered. In particular, this problem becomes more noticeable as the lifting distance is longer. In this case, there is a problem that the user is frustrated.

  The present invention has been made from the actual situation in the above-described prior art, and its purpose is to prevent or reduce ear clogging and ear pain without significantly reducing driving efficiency and without requiring a special device. It is in providing the elevator apparatus which can do.

  In order to achieve the above object, the invention according to claim 1 of the present invention registers a destination floor in response to a car call and a hall call, and outputs an operation command to driving means to accelerate the car, rated speed In the elevator apparatus provided with a control means for operating and decelerating and operating to the destination floor, the control means calculates a lift distance from the departure floor of the car to the destination floor, and the lift distance is longer than a predetermined value. An elevator apparatus characterized by setting the acceleration or deceleration of the car lower as the lift distance is longer.

  In the invention according to claim 1 of the present invention configured as described above, when the car call and the hall call are registered, the lift distance from the departure floor to the destination floor of the car is calculated, and the lift distance is longer than a predetermined value. At this time, the acceleration or deceleration of the car is set low according to the lift distance. Then, the car is accelerated from the departure floor with the set acceleration, and then is driven for a predetermined distance with the rated speed operation, then decelerated with the set deceleration, and stopped on the destination floor. In this way, by setting the acceleration or deceleration of the car low, the rate of change in the atmospheric pressure in the car is reduced, preventing or reducing ear clogging and ear pain, while driving at rated speed as much as possible. It is possible to prevent the decrease in operation efficiency.

  Further, the invention according to claim 2 of the present invention is characterized in that the control means changes the acceleration or deceleration of the car stepwise.

  According to the second aspect of the present invention configured as described above, when the lifting distance is longer than a predetermined value, the acceleration or deceleration of the car is set low according to the lifting distance, and these accelerations or reductions are set. By changing the speed in stages, the passenger's body can gain time to respond physiologically to changes in air pressure in the car, and more effectively prevent or reduce ear clogging and ear pain. it can.

Furthermore, in the invention according to claim 3 of the present invention, the control means controls the acceleration or deceleration of the car so that the change in the atmospheric pressure in the car is in the range of ± 0.3 hPa / s ^2. It is characterized by setting.

According to the third aspect of the present invention configured as described above, by setting the acceleration or deceleration of the car so that the change in the atmospheric pressure in the car is in the range of ± 0.3 hPa / s ^2. , While maintaining the rate of change of the atmospheric pressure in the car at an effective value for preventing or reducing ear clogging and ear pain, unnecessarily lowering the car's lifting and lowering speed and deteriorating driving efficiency Can be prevented.

  According to the present invention, when the lifting distance is longer than a predetermined value, the longer the lifting distance, the lower the acceleration or deceleration of the car, so that the rate of change of the atmospheric pressure in the car is reduced, and ear clogging and While preventing or reducing the feeling of ear pain, it is possible to drive at the rated speed as much as possible, and to prevent a decrease in driving efficiency. This makes it possible to achieve both a comfortable riding comfort and driving efficiency in a high-speed elevator.

  Embodiments of an elevator apparatus according to the present invention will be described below with reference to the drawings.

  FIG. 1 is a schematic configuration diagram showing an embodiment of an elevator apparatus according to the present invention, and FIG. 2 is an explanation showing the relationship between acceleration / deceleration and time, the relationship between lifting speed and time, and the relationship between pressure change rate and time. FIGS. 3 and 3 are explanatory diagrams showing the relationship between the acceleration / deceleration speed and the time and the relationship between the lifting speed and time at a different lifting distance from FIG.

  As shown in FIG. 2, the elevator apparatus according to the present embodiment has a car 1 and a counterweight 2 that move up and down a hoistway formed in a building, and a rope that has one end connected to the car 1 and the other end connected to the counterweight 2. 3, a sheave 4 around which the intermediate portion of the rope 3 is wound, an electric motor 5 that is connected to the sheave 4 and applies driving force to the sheave 4, a commercial power source 6 that supplies power to the elevator apparatus, and a car 1, a car call button 7 that outputs a car call signal 7a, a hall call button 8 that is installed at an elevator hall and outputs a hall call signal 8a, and detects the position of the car 1 In accordance with the car position detector 9 that outputs the signal 9a, the car call signal 7a and the hall call signal 8a, the destination floor is registered, and an operation command 10a is output to the motor 5 to accelerate the car 1 and operate at a rated speed. And decelerate Control means for operating to record has been destination floor, for example, a control unit 10.

  Here, based on FIG. 2, the control of the speed of the car, the time to reach the destination floor, and the change in the pressure inside the car when the acceleration and deceleration of the car 1 are set low, which is the gist of the present invention, are controlled. This will be described in comparison with the method. Here, the case where the car 1 is driven up will be described as an example.

  For example, when the car call button 7 is operated by a passenger who has entered the car 1 and the car call signal 7a is output, the control unit 10 registers the destination floor based on the car call signal 7a, and from the departure floor to the destination floor. The lift distance is calculated, and it is determined whether the lift distance is longer than a predetermined value. This predetermined value is set to a distance (altitude difference) that does not cause ear clogging even when the car 1 travels at a high speed without requiring special control. For example, in the case of an elevator of 600 m / min, the altitude Since it has been confirmed that there is almost no problem if the difference is about 200 m, the value can be set to a predetermined value. When it is determined that the lifting distance is shorter than the predetermined value, a normal operation command 10a is output to the electric motor 5, and the car 1 is accelerated at a normal acceleration, operated at a rated speed, and a normal deceleration. Decelerate at to stop at the destination floor. Further, when it is determined that the distance cannot be traveled at the rated speed as in the first floor operation or the second floor operation, the operation command 10a corresponding to the distance is output to the electric motor 5.

On the other hand, when determining that the lift distance is longer than the predetermined value, the control unit 10 sets the acceleration and deceleration of the car 1 to be lower as the lift distance is longer, and outputs an operation command 10 a based on this determination to the electric motor 5. . When the relationship between the acceleration / deceleration and time according to the operation command 10a is illustrated, a curve A1 is obtained. That is, the car 1 is accelerated from the departure floor at an acceleration A1a lower than the normal acceleration, and when the rated speed is reached, the acceleration is set to 0 and the rated speed is maintained for a predetermined time. Thereafter, the deceleration A1b lower than the normal acceleration is maintained. Decelerate at and stop at the destination floor. Moreover, if the relationship between the raising / lowering speed and time of the car 1 according to the operation command 10a is illustrated, a curve A2 is obtained. That is, the car 1 is accelerated from the departure floor, operated at the rated speed for a time T10, and then decelerated to stop at the destination floor. The time required for operation from the departure floor to the destination floor is time T1. Furthermore, if the relationship between the atmospheric pressure change rate in the car 1 and the time according to the operation command 10a is illustrated, a curve A3 is obtained. That is, the car 1 is accelerated from the departure floor at an acceleration A1a lower than the normal acceleration, and traveling at the rated speed at which the altitude difference changes greatly in a short time is suppressed to a relatively short time T10, and the decrease is lower than usual. By decelerating at the speed A1b, the change rate of the atmospheric pressure in the car 1 is made small. Specifically, by controlling the raising and lowering of the car 1 so that the change in the atmospheric pressure in the car 1 is always within a range of ± 0.3 hPa / s ² , it is possible to prevent or reduce the feeling of ear clogging and ear pain that a passenger can feel. To do.

  In FIG. 3, the relationship between acceleration / deceleration and time is curve B1, the relationship between elevating speed and time is curve B2, and atmospheric pressure when the same elevating distance is operated with normal acceleration B1a and deceleration B1b. Curve B3 shows the relationship between the rate of change and time, and curve C1 shows the relationship between acceleration / deceleration and time when the same elevating distance is operated with the elevating speed set low, and the relationship between elevating speed and time. Curve C2 and the relationship between the rate of change in atmospheric pressure and time are shown in curve C3. As is apparent from the comparison of these curves, if the same elevation distance is operated with the normal acceleration B1a and deceleration B1b, the required time is time T2 and the destination floor is reached in a short time, but as shown by the curve B3. The rate of change of the atmospheric pressure in the car 1 increases, and the passengers feel clogged ears and ear pain. On the other hand, when the vehicle is operated at a low elevation speed, the rate of change of the atmospheric pressure in the car 1 can be further reduced as shown by the curve C3, while the required time becomes time T3 as shown by the curve C2. The driving efficiency is reduced as compared with the present embodiment in which the driving is performed with the acceleration or deceleration set low according to the lifting distance.

When the controller 10 determines that the lift distance is longer than a predetermined value, the controller 10 sets the acceleration and deceleration of the car 1 to be low according to the lift distance. When it is determined that the distance is longer than the distance, that is, the altitude difference is larger, the car 1 is accelerated from the departure floor at an acceleration D1a lower than the acceleration A1a as shown by a curve D1 in FIG. When the traveling at the rated speed at which the altitude difference changes greatly in a short time is made shorter than the time T10 and the car 1 is decelerated by the deceleration D1b lower than the deceleration A1b, the change in the atmospheric pressure in the car 1 is achieved. The range is always within a range of ± 0.3 hPa / s ² to prevent or reduce ear clogging and ear pain that can be felt by passengers. On the other hand, when it is determined that the lift distance is longer than the predetermined value but shorter than the lift distance shown in FIG. 2 described above, the departure floor is at an acceleration E1a higher than the acceleration A1a as shown by a curve E1 in FIG. The car 1 is accelerated from the start, and the car 1 is decelerated at a deceleration E1b that is longer than the time T10 and at a deceleration E1b that is higher than the deceleration A1b as shown by a curve E2. The atmospheric pressure change is always within the range of ± 0.3 hPa / s ² to prevent or reduce ear clogging and ear pain that can be felt by passengers, and to improve driving efficiency as much as possible. ing.

  According to the present embodiment, when the lifting distance is longer than a predetermined value, the rate of change in the atmospheric pressure in the car 1 is reduced by setting the acceleration and deceleration of the car lower as the lifting distance is longer. While preventing or reducing the feeling of clogging and earache, it is possible to drive at the rated speed as much as possible, and to prevent a decrease in driving efficiency. This makes it possible to achieve both a comfortable riding comfort and driving efficiency in a high-speed elevator.

  Although the present embodiment has been described by taking as an example the case where the car 1 is in the ascending operation, the same control is possible in the descending operation if the speed command is reversed. Further, in this embodiment, when the lifting distance is longer than the predetermined value, the acceleration and deceleration of the car are set lower as the lifting distance is longer. However, the present invention is not limited to this, and the lifting distance is a predetermined value. When it is longer, at least one of the acceleration and deceleration of the car 1 may be set lower as the lifting distance is longer. That is, in the structure of the human ear, when the car 1 is traveling upward (in the direction in which the atmospheric pressure decreases), a passive opening through which the ear canal naturally expands and the atmospheric pressure is released as the atmospheric pressure in the middle ear increases. It is said that the ear pain sensation is relatively weak, while the car 1 travels downward (in the direction in which the atmospheric pressure increases), since the atmospheric pressure in the middle ear decreases. It is said that the pressure inside the ear is hard to escape and the ear pain sensation is relatively strong. Considering the difference in the influence of the ascending operation and the descending operation of the car 1 on the person, only one of the acceleration and deceleration of the car 1 is set low depending on the raising and lowering distance and the raising and lowering direction of the car 1. You may make it do. Further, in FIG. 2 and FIG. 3 described above, the acceleration / deceleration of the car 1 is drawn as a rectangle, but actually the car 1 is controlled so as to draw a smooth curve during acceleration and deceleration. Needless to say.

  FIG. 4 is an explanatory view showing another embodiment of the elevator apparatus according to the present invention. A part of an elevator apparatus according to another embodiment will be described with reference to FIG. 1 described above.

  When the control means 10 that outputs an operation command in the elevator apparatus according to another embodiment determines that the lift distance is longer than a predetermined value, the longer the lift distance, the lower the acceleration and deceleration of the car 1 are set. These accelerations and decelerations are changed step by step. For example, the car 1 is accelerated from the departure floor at the first acceleration, and when the first speed V1 is reached as shown in FIG. 4, this speed V1 is maintained for a predetermined time, and then the car is driven at the second acceleration. When the raising / lowering speed of the car 1 is increased and the second speed V2 is reached, the speed V2 is maintained for a predetermined time, and thereafter, the raising / lowering speed of the car 1 is increased by the third acceleration to reach the third speed V3. Then, this speed V3 is maintained for a predetermined time, and then the raising / lowering speed of the car 1 is increased by the fourth acceleration. When the rated speed V4 is reached, the rated speed V4 is maintained for a predetermined time. Then, the car 1 is decelerated from the rated speed by the first deceleration, and when the third speed V3 is reached, this speed V3 is maintained for a predetermined time, and then the elevator 1 is raised and lowered by the second deceleration. When the second speed V2 is reached, the speed V2 is maintained for a predetermined time. After that, the elevator 1 is lowered by the third deceleration, and when the first speed V1 is reached, the speed V1 is maintained for a predetermined time. Next, the elevator 1 is lowered at the fourth deceleration to stop at the destination floor.

  According to another embodiment, by changing the acceleration and deceleration stepwise, the time during which the passenger's body physiologically responds to the change in air pressure in the car 1, that is, the time during which the air pressure naturally falls off. Earning can be achieved and ear clogging and ear sensation can be prevented or reduced more effectively. In addition, it is possible to effectively prevent or reduce the clogging of ears and ear pain by changing the acceleration and deceleration in stages, so that acceleration and deceleration can be relatively increased. Accordingly, the driving efficiency can be improved as compared with the case where the acceleration and deceleration of the car 1 are simply set low.

  In the other embodiments described above, the car 1 is accelerated and decelerated in four stages. However, the present invention is not limited to this, and in consideration of conditions such as the lifting distance and the atmospheric pressure change rate, It is desirable to accelerate and decelerate the car 1 step by step so as to satisfy the most appropriate conditions from the viewpoint of comfort and driving efficiency.

1 is a schematic configuration diagram showing an embodiment of an elevator apparatus according to the present invention. It is explanatory drawing which shows the relationship between acceleration / deceleration and time, the relationship between raising / lowering speed and time, and the relationship between atmospheric | air pressure change rate and time. It is explanatory drawing which shows the relationship between the acceleration / deceleration and time in the raising / lowering distance different from FIG. 2, and the relationship between raising / lowering speed and time. It is explanatory drawing which shows other embodiment of the elevator apparatus which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car 2 Balance weight 3 Rope 4 Sheave 5 Electric motor (drive means)
6 Commercial Power Supply 7 Car Call Button 7a Car Call Signal 8 Landing Call Button 8a Landing Call Signal 9 Car Position Detector 9a Car Position Signal 10 Control Unit (Control Means)
10a Operation command

Claims (3)

In an elevator apparatus provided with a control means for registering a destination floor in response to a car call and a hall call, and outputting a driving command to a driving means to accelerate, decelerate and drive the car, and drive to the destination floor. ,
The control means calculates a lift distance from the departure floor to the destination floor of the car, and when the lift distance is longer than a predetermined value, the longer the lift distance, the lower the acceleration or deceleration of the car. A featured elevator system.   The elevator apparatus according to claim 1, wherein the control means changes the acceleration or deceleration of the car stepwise. ^2. The elevator according to claim 1, wherein the control means sets the acceleration or deceleration of the car so that a change in air pressure in the car is in a range of ± 0.3 hPa / s ^2. apparatus.

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