JP5679602B1 - Elevator with floor adjustment function - Google Patents

Abstract

An object of the present invention is to prevent a confinement accident due to the fact that an adjustment between floors is not completed after the nearest floor stops when an abnormality such as an earthquake occurs. An elevator with a floor adjustment function according to this embodiment includes an elevator control device 10 that causes a car frame 1 to travel to the nearest floor when an abnormality occurs, and a car frame 1 that travels when the car frame 1 travels to the nearest floor. If the floor adjustment operation of the car frame 1 is completed within the first time, it is determined whether or not the floor adjustment operation of the car frame 1 is completed within the first time. And a floor adjustment control device 20 that stops the floor adjustment operation of the car frame 1 when it is determined. [Selection] Figure 1

Description

  The embodiment of the present invention has a car frame in which at least two car rooms are vertically connected, and the distance between the car rooms of the car frame can be adjusted according to the floor length of the destination floor. It relates to the elevator with attached.

  In a high-rise building or the like, an elevator capable of mass transportation in which a car room is configured in two upper and lower stages is used as a vertical transportation means in the building in order to improve the space efficiency of the building. Such an elevator is called a “double deck elevator”.

  This double deck elevator moves the upper and lower cabs in the car frame relative to each other so that the upper and lower cabs can be landed on the destination floor at the same time even if the height of each floor of the building is not constant, Some have a floor adjustment function that adjusts the distance between cabs.

  Further, in an elevator, for example, when an earthquake occurs, an emergency stop is performed at the nearest floor, and an earthquake control operation is performed in which passengers are lowered. At that time, it is determined whether or not it is possible to stop at the nearest floor within a predetermined time (approximately within 10 seconds) from the occurrence of the earthquake.

Japanese Patent No. 5094140 JP 2010-47401 A

However, in the above-described double deck elevator with a floor adjustment function, even if the stop can be stopped within a predetermined time from the occurrence of an earthquake, the floor adjustment between the upper and lower cabs may not be in time. In such a case, since the doors of the upper and lower cabs can not be opened on the nearest floor, passengers are trapped in the cab.

  The problem to be solved by the present invention is to provide an elevator with a floor adjustment function that can prevent a confinement accident due to the fact that the floor adjustment is not completed after the nearest floor stops when an abnormality such as an earthquake occurs.

  The elevator with a floor adjustment function according to the present embodiment has a car frame in which at least two car rooms are connected in the vertical direction, and has a floor adjustment function capable of adjusting the distance between the car rooms of the car frame. In the elevator, when the abnormality occurs, the operation control means for traveling the car frame to the nearest floor, and when the car frame travels to the nearest floor by the operation control means, the floor adjustment operation of the car frame is performed in advance. Completion determination unit for determining whether to complete within the set first time, and when it is determined that the floor adjustment operation of the car frame is not completed within the first time Floor adjustment control means for stopping the floor adjustment operation of the car frame.

FIG. 1 is a diagram illustrating a configuration of an elevator with a floor adjustment function according to the first embodiment. FIG. 2 is a diagram illustrating a configuration of a memory device provided in the elevator according to the embodiment. FIG. 3 is a diagram illustrating an example of an inter-story length table provided in the elevator according to the embodiment. FIG. 4 is a diagram showing an example of an operation speed table provided in the elevator according to the embodiment. FIG. 5 is a block diagram showing functional configurations of the elevator control device and the floor adjustment control device in the same embodiment. FIG. 6 is a flowchart showing the processing operation during the earthquake control operation of the elevator in the embodiment. FIG. 7 is a block diagram showing functional configurations of the elevator control device and the floor adjustment control device in the second embodiment. FIG. 8 is a view for explaining an elevator door opening permission zone in the same embodiment. FIG. 9 is a flowchart showing the processing operation during the earthquake control operation of the elevator in the embodiment.

  Hereinafter, embodiments will be described with reference to the drawings.

(First embodiment)
FIG. 1 is a diagram illustrating a configuration of an elevator with a floor adjustment function according to the first embodiment. Here, a double deck elevator having two car rooms (hereinafter referred to as upper car and lower car) 2 and 3 in one car frame 1 will be described as an example.

  A main rope 13 is wound around the hoisting machine 11 via a deflecting sheave 12 or the like. By driving the hoisting machine 11, the car frame 1 moves up and down in the hoistway via the main rope 13. An upper car 2 and a lower car 3 are connected to the car frame 1 via ball screws 5a, 5b, 6a, 6b so as to be movable in the vertical direction. These ball screws 5a, 5b, 6a, 6b are supported by the upper beam 1a and the intermediate beam 7, and move the upper car 2 and the lower car 3 in the vertical direction by driving the motors 4a, 4b, respectively.

  Further, the car frame 1 is equipped with a floor adjustment control device 20 and a door control device (not shown). These devices are connected to an elevator control device 10 installed in a machine room of a building or the like via a tail cord 14 wired to a car lower duct 15.

  The elevator control device 10 is a so-called “control panel” and controls the entire elevator such as drive control of the hoisting machine 11. An earthquake detector 16 is connected to the elevator control device 10. When an earthquake of a predetermined level or more is detected by the earthquake sensor 16, the elevator control device 10 stops the car frame 1 that is traveling to the nearest floor, where the passenger is lowered and stands by. Such operation is called “earthquake control operation”.

  On the other hand, the floor adjustment control device 20 drives the motors 4 a and 4 b in accordance with an instruction from the elevator control device 10 to adjust the distance between the upper car 2 and the lower car 3. The floor adjustment control device 20 includes a replaceable memory device 30 made of, for example, an EEPROM, a memory card, or a USB memory.

  As shown in FIG. 2, the memory device 30 is provided with an inter-floor length table 31 for the control destination floor and an operation speed table 32 for the departure floor and the destination floor.

  FIG. 3 shows an example of the inter-story length table 31. In this example, the floor length of the control destination floor designated by the floor command signal output from the elevator control device 10 is shown.

  FIG. 4 shows an example of the operation speed table 32. In the operation speed table 32, speeds for performing the floor adjustment operation are set. For example, parameters for moving the upper car 2 and the lower car 3 at a speed of 45 mm / s are set for traveling from 1F to 3F. The minus sign in the figure means that the distance between the upper car 2 and the lower car 3 is reduced at that speed.

  Here, the landing control of the double deck elevator will be briefly described.

  In the double deck elevator, when landing on the destination floor, the car frame 1 is positioned and landed by the car frame landing detection plate 21. Specifically, it stops when the landing switch 24 provided in the car frame 1 enters the range of the landing detection plate 21. In the double deck elevator with the floor adjustment function, the position of the landing detection plate 21 is determined so that the center of the car frame 1 is the center of the upper car 2 and the lower car 3.

  Further, when the destination floor is determined, the adjustment of the floor is started by driving the motors 4a and 4b, and the interval between the upper car 2 and the lower car 3 in the car frame 1 is adjusted according to the floor length of the destination floor. The Similarly to the car frame 1, landing switches 25 and 26 are provided for the upper car 2 and the lower car 3. The positioning (level alignment) of the upper car 2 and the lower car 3 can be confirmed by the positional relationship between the landing switches 25 and 26 and the floor detection plates 22 and 23 for the car room. The landing detection plates 21 to 23 are disposed on the hoistway wall. In addition, 27a and 27b in the figure indicate landings on each floor.

  Reference numerals 40 to 42 in the figure denote PGs (pulse gelators). The PG 40 is installed on the rotating shaft of the hoisting machine 11 and outputs a pulse signal in synchronization with the rotation of the hoisting machine 11. The PGs 41 and 42 are installed on the rotation shafts of the motors 4a and 4b for adjusting the floor, and output pulse signals in synchronization with the rotations of the motors 4a and 4b, respectively. These pulse signals are given to the elevator control device 10.

  In FIG. 1, the elevator control device 10 and the floor adjustment control device 20 are divided according to function. However, only the drive control portions of the motors 4a and 4b are physically mounted on the car frame 1, and the others are the elevators. It is good also as a structure provided in a control apparatus.

  FIG. 5 is a block diagram showing functional configurations of the elevator control device 10 and the floor adjustment control device 20 in the first embodiment.

  The elevator control device 10 and the floor adjustment control device 20 are provided with an input / output device (not shown), and various signals are exchanged via the input / output device. Specifically, when the destination floor (also referred to as the destination floor) of the car frame 1 is determined, an adjustment command is output from the elevator control device 10 to the inter-floor adjustment control device 20 together with a signal indicating the destination floor. Thereby, the floor adjustment control device 20 reads the floor length data corresponding to the destination floor from the memory device 30, and sets the space between the upper car 2 and the lower car 3 in the car frame 1 to the floor length of the destination floor. Adjust to match. The destination floor of the car frame 1 includes two floors, an upper car 2 and a lower car 3.

  Here, the floor adjustment control device 20 has a car frame 1 (upper car 2 and lower car 3) within a predetermined time K0 (generally within 10 seconds) when an adjustment command is received regardless of seismic control operation. The completion determination unit 20a for determining whether to complete the floor adjustment operation is provided. If the floor adjustment operation cannot be completed within the time K0, the floor adjustment control device 20 outputs a determination result (no) to the elevator control device 10. Thereby, in the elevator control apparatus 10, it recognizes that it cannot complete.

  On the other hand, when the earthquake detector 16 detects an earthquake of a predetermined level or higher, the elevator control device 10 performs an earthquake control operation that stops the car frame 1 at the nearest floor. At that time, the elevator control device 10 is provided with a stop possibility determination unit 10a for determining whether or not the car frame 1 can be stopped at the nearest floor within a predetermined time T0. If it is possible to stop at the nearest floor within time T0, the elevator control device 10 causes the car frame 1 to travel with the nearest floor as the destination floor and outputs an adjustment command to the inter-floor adjustment control device 20. On the other hand, if the elevator control device 10 cannot stop at the nearest floor within the time T0, the elevator control device 10 immediately stops the car frame 1 by forced deceleration. If a determination result (no) is output from the floor adjustment control device 20 after outputting the adjustment command, the adjustment command is stopped and the car frame is immediately forcibly decelerated and stopped.

  It is to be noted that the determination result is output from the floor adjustment control device 20 to the elevator control device 10, and if not, the output of the adjustment command to the floor adjustment control device 20 is stopped, whereby the floor adjustment control device 20 is stopped. Stops. The initiative is solely in the elevator control device 10. Otherwise, the adjustment operation may be stopped on the floor adjustment control device 20 side at any time other than when an earthquake occurs.

Hereinafter, the processing operation during the earthquake control operation will be described in detail.
FIG. 6 is a flowchart showing the processing operation during the earthquake control operation of the elevator in the first embodiment.

  If an earthquake of a predetermined level or more is detected by the earthquake detector 16 (Yes in Step A11), the elevator control device 10 determines whether or not the car frame 1 can be stopped at the nearest floor within a predetermined time T0. Is determined (step A12). Specifically, the floor closest to the current position of the car frame 1 is defined as the nearest floor, and the arrival time to the nearest floor is calculated on the basis of the distance to the nearest floor and the traveling speed. It is determined whether or not it can be stopped within. The time T0 is set in advance according to the traveling speed during the control operation, and is, for example, 10 seconds.

  If it is not possible to stop at the nearest floor within time T0 (No in Step A13), the elevator control device 10 forcibly decelerates and immediately stops the car frame 1 (Step A23). This is because, for example, when an earthquake occurs again on the way to the nearest floor, it is dangerous. After the deceleration stop, wait for a predetermined time to elapse, and if an earthquake does not occur again during that time, head to the nearest floor from the position where the deceleration stopped and perform floor adjustment to drop the passengers.

  If it is possible to stop at the nearest floor within time T0 (Yes in Step A13), the elevator control device 10 causes the car frame 1 to travel to the nearest floor at a predetermined speed (Step A14). At that time, the elevator control device 10 outputs an adjustment command with the nearest floor as the destination floor to the inter-floor adjustment control device 20 (step A15).

  In response to this adjustment command, the floor adjustment control device 20 starts the floor adjustment operation (step A16). Specifically, the floor length data corresponding to the nearest floor is read from the floor length table 31, and the operation speed data corresponding to the distance from the current position to the nearest floor is read from the operation speed table 32, and the motor is based on these data. 4a and 4b are driven to adjust the distance between the upper car 2 and the lower car 3 to the floor length of the nearest floor.

  At that time, the floor adjustment control device 20 determines whether or not the floor adjustment operation can be completed within a predetermined time K0 (step A17). When it is determined that the floor adjustment operation can be completed within the time K0 (Yes in step A18), the floor adjustment control device 20 continues the floor adjustment operation as it is, and the upper car 2 and the lower car 3 Is adjusted to the floor length of the nearest floor (step A19). The time K0 is preset according to the operation speed of the floor adjustment control device 20, and is, for example, 10 seconds.

  When the car frame 1 reaches the nearest floor, the elevator control device 10 opens the upper car 2 and the lower car 3 and lowers the passengers, and then stops operation (step A20). The fact that the car frame 1 has landed on the nearest floor can be seen from the positional relationship between the landing switch 24 and the landing detection plate 21. Whether the upper car 2 and the lower car 3 are stopped at the landing positions on the upper and lower two floors designated as the nearest floors is determined by the positions of the landing switches 25 and 26 and the landing detection plates 22 and 23. I understand from the relationship.

  On the other hand, when the floor adjustment operation cannot be completed within the time K0 (No in Step A18), the elevator control device 10 stops the adjustment command to the floor adjustment control device 20 (Step A21), and the floor adjustment control is performed. The device 20 stops the floor adjustment operation (step A22).

In addition, when the elevator control device 10 receives the determination result (no) of the adjustment operation from the floor adjustment control device 20, the car frame 1 is forcibly decelerated and immediately stopped (step A23). After decelerating and stopping, wait for the specified time to elapse, and if an earthquake does not occur again during that time, head to the nearest floor from the position where the deceleration was stopped, and during that time, realignment between the floors will be resumed and passengers will be sent to the nearest floor. take down.

  As described above, when the car frame 1 is stopped at the nearest floor in the event of an earthquake, a function for determining whether or not the floor adjustment operation is completed within a predetermined time K0 is provided. By stopping the adjustment operation, it is possible to prevent a situation where the passenger is trapped in the car room without opening the door after the nearest floor stops.

  When the floor adjustment operation is stopped, the car frame 1 is decelerated and stopped. Thereafter, when safety is confirmed, the vehicle heads to the nearest floor from the position where the vehicle is decelerated and stopped, and the inter-level adjustment is resumed during that time, so that passengers can be safely lowered at the nearest floor.

(Second Embodiment)
Next, a second embodiment will be described.

  In the first embodiment, the floor adjustment operation is stopped when it is determined that the floor adjustment operation is not completed within the predetermined time K0. However, in the second embodiment, the floor adjustment operation is stopped within the time K0. The operation speed of the floor adjustment and the floor length are appropriately changed so as to be in time.

  FIG. 7 is a block diagram showing functional configurations of the elevator control device 10 and the floor adjustment control device 20 in the second embodiment. In addition, the same code | symbol is attached | subjected to the same part as FIG. 5 in the said 1st Embodiment, and the detailed description shall be abbreviate | omitted.

  In the second embodiment, the floor adjustment control device 20 includes a speed change determination unit 20b and a floor length change determination unit 20c in addition to the completion determination unit 20a.

  The speed change determination unit 20b increases the operation speed at the time of adjustment to the maximum speed of the property when the completion determination unit 20a determines that the floor adjustment operation of the car frame 1 is not completed within the predetermined time K0. It is determined whether or not it is in time for K0. When the speed change determination unit 20b determines that the time is within the time K0, the floor adjustment control device 20 performs the floor adjustment of the car frame 1 by switching to the maximum speed.

  The floor length change determination unit 20c changes the floor length within the door opening permission zone when it is determined that the floor adjustment operation of the car frame 1 is not completed within the predetermined time K0. It is determined whether or not it is in time. When it is in time, the floor adjustment control device 20 adjusts the floor of the car frame 1 by changing the floor length with respect to the nearest floor.

  The door opening permission zone is a range in which the door can be opened determined by the landing detection plates 22 and 23 for the cab, and is also referred to as a “door opening traveling protection zone”. When the upper car 2 and the lower car 3 are landing within the range of the door opening permission zone, the door opening is permitted, and when the door is opened outside of this range due to some abnormality, traveling is prohibited.

  Here, as shown in FIG. 8, if the upper car 2 and the lower car 3 are correctly landing on the landings 27a and 27b on the respective floors, the landing switches 25 and 26 are respectively connected to the landing detection plates 22 and 23, respectively. Within the range, that is, within the door opening permission zone. Reference numerals 2a and 3a denote car doors which are opened and closed by engaging with landing doors (not shown) when landing.

  Ideally, it is preferable that the upper car 2 and the lower car 3 are landed so that the landing switches 25 and 26 come to the center positions of the landing detection plates 22 and 23. If it is within the range of 23, door opening is permitted. Therefore, if the floor length with respect to the nearest floor is changed within the range of the detection plates 22 and 23 for the car room during the rescue operation, that is, the door opening permission zone, the floor length is changed if it is in time K0. It is assumed that the floor of frame 1 is adjusted.

Hereinafter, the processing operation during the earthquake control operation will be described in detail.
FIG. 9 is a flowchart showing the processing operation during the seismic control operation of the elevator in the second embodiment. In FIG. 9, the process from step B11 to B20 is the same as the process from step A11 to A20 in FIG. Further, the process of No → B28 in Step B13 is the same as the process of No → A23 in Step A13 of FIG.

  Here, in the second embodiment, when it is determined in Step B18 that the floor adjustment operation cannot be completed within the predetermined time K0 (No in Step A18), the floor adjustment control device 20 The maximum speed is acquired (step B21), and the operation speed at the time of adjustment is increased to the maximum speed, and it is determined whether or not it is in time K0 (step B22).

  The “maximum speed of the property” is the maximum speed defined by the floor adjustment control function installed in the elevator in this case.

  As described with reference to FIG. 4, the operation speed of the inter-floor adjustment is set in advance from the relationship between the departure floor and the destination floor. This operating speed is not the maximum speed but a rated speed with some margin. This is because if the operating speed of the floor adjustment is increased, the upper car 2 and the lower car 3 may be greatly shaken and passengers may feel uncomfortable, and noise may also be generated. However, since it is an emergency due to the occurrence of an earthquake, if it is in time K0 in time (Yes in step B23), the floor adjustment control device 20 increases the operation speed of the floor adjustment to the maximum speed. The floor is adjusted to complete the operation within time K0 (step B19).

  On the other hand, if the operation speed of the floor adjustment is not increased in time K0 even if the operation speed of the floor adjustment is increased to the maximum speed (No in Step B23), the floor adjustment controller 20 determines the range of the door opening permission zone described in FIG. It is determined whether or not the time K0 is in time by changing the floor length (step B24). If the floor length is changed to meet the time K0 (Yes in step B25), the floor adjustment control device 20 adjusts the floor length for the nearest floor within the door opening permission zone. The operation is completed within K0 (step B19).

  If the floor length is not changed within the time K0 (No in Step B25), the floor adjustment control device 20 outputs a determination result (No) to the elevator control device 10 (Step B26). Then, the floor adjustment operation is stopped (step B27).

  When the elevator control device 10 receives the determination result (no) from the floor adjustment control device 20, the elevator car device 10 forcibly decelerates and immediately stops (step B28). After decelerating and stopping, wait for the specified time to elapse, and if an earthquake does not occur again during that time, head to the nearest floor from the position where the deceleration was stopped, and during that time, realignment between the floors was resumed and take down.

  As described above, according to the second embodiment, by appropriately changing the operation speed and the inter-floor length of the inter-floor adjustment so as to be in time within K0, passengers can be prevented from opening the door after stopping the nearest floor. It is possible to prevent the situation of being trapped in the car room.

  In each of the above embodiments, the case where an earthquake occurs has been described. However, for example, when the building is greatly shaken by a strong wind, the elevator (car frame 1) needs to be stopped at the nearest floor. Applicable when an abnormal event occurs.

  According to at least one embodiment described above, it is possible to provide an elevator with a floor adjustment function that can prevent a confinement accident due to the fact that the floor adjustment is not completed after the nearest floor stops when an abnormality such as an earthquake occurs. .

  In addition, although some embodiment of this invention was described, these embodiment is shown as an example and is not intending limiting the range of invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  DESCRIPTION OF SYMBOLS 1 ... Car frame, 2 ... Upper car, 3 ... Lower car, 2a, 3a ... Car door, 4a, 4b ... Motor, 5a, 5b ... Ball screw, 6a, 6b ... Ball screw, 7 ... Intermediate beam, 8, 9 ... Support Mechanism: 10 ... Elevator control device, 10a ... Stop possibility determination unit, 11 ... Hoisting machine, 12 ... Warp sheave, 13 ... Main rope, 14 ... Tail cord, 15 ... Duct under the car, 16 ... Earthquake detector, 20 ... Inter-story adjustment control device, 20a ... completion determination unit, 20b ... speed change determination unit, 20c ... inter-floor length change determination unit, 21-23 ... landing detection plate, 24-26 ... landing switch, 27a, 27b ... Each floor landing, 30 ... memory device, 31 ... inter-floor length table, 32 ... operating speed table, 40 to 42 ... pulse generator.

Claims (4)

In an elevator with a floor adjustment function, wherein at least two car rooms have a car frame connected in the vertical direction, and the distance between the car rooms of the car frame can be adjusted.
Operation control means for driving the car frame to the nearest floor when an abnormality occurs;
When the car frame travels to the nearest floor by the operation control means, it is determined whether or not the car frame floor adjustment operation is completed within a preset first time. And a floor adjustment control means for stopping the floor adjustment operation of the car frame when it is determined that the car floor adjustment operation is not completed within the first time ,
The floor adjustment control means is
Whether it is in time for the first time by changing the floor length within the door opening allowance zone when it is determined that the floor adjustment operation of the car frame is not completed within the first time. The floor length change determining means for determining whether or not it is determined that it is in time for the first time, the floor length for the nearest floor is changed within the door opening permission zone. An elevator with a floor adjustment function, wherein the floor adjustment of the car frame is performed . The floor adjustment control means is
When the car frame travels to the nearest floor, an operation of adjusting the floor of the car frame is started. During the operation, the floor frame adjusting operation of the car frame is performed within the first time by the completion determination unit. 2. The elevator with a floor adjustment function according to claim 1, wherein the floor adjustment operation of the car frame is stopped when it is determined that the car frame is not completed. The floor adjustment control means is
When it is determined that the floor adjustment operation of the car frame is not completed within the first time, the operation speed at the time of adjustment is increased to the maximum speed of the property, and it is determined whether or not it is in time for the first time. 2. The floor according to claim 1, further comprising: a speed change determination means configured to switch to the maximum speed and adjust the floor of the car frame when it is determined that the time is within the first time. Elevator with interval adjustment function. The operation control means includes
A stop possibility determination unit that determines whether or not the car frame can be stopped at the nearest floor within a preset second time, and the car frame is stopped within the second time The car frame is forcibly decelerated and stopped when it is determined that the car frame cannot be adjusted or when it is determined that the operation of adjusting the floor space of the car frame is not completed within the first time. The elevator with a floor adjustment function according to claim 1.

Images