JP2013147347A - Elevator system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator system that can stop a car more safely in a time of disaster like an earthquake.SOLUTION: An elevator system 10 includes: a recording part 180 that records data premeasured and correlated in a hoistway where no foreign matter exists, the data including the position of a car 20, an upper side recording distance D, and a lower side recording distance D; and a control part 18 that stops the car 20 at the nearest floor when disaster occurs. The control part 18 determines whether the foreign matter exists or not in a hoistway 30 based on an upper side measuring distance D, a lower side measuring distance D, and data recorded in the recording part 180, and stops the car more safely when the foreign matter exists.

Description

  The present invention relates to an elevator system.

  Currently, elevator systems are installed in various places such as commercial facilities. In such an elevator system, various measures are taken in preparation for disasters such as earthquakes.

  As a technology related to the present invention, for example, in Patent Document 1, a non-service floor where passengers are not allowed to get on and off is provided between service floors where passengers are allowed to get on and off. There is disclosed an elevator including an express car provided, a control device that controls the operation of the express car, and a monitoring panel that transmits disaster information to the control device when a disaster occurs.

  Here, when the control device receives the disaster information from the monitoring panel, the control device determines whether or not the express car is moving up and down in a direction away from the first service floor as the evacuation floor A passenger detecting means for detecting the presence of a passenger in the express car and an express car when the means and the judging means determine that the elevator is moving up and down in a direction away from the first service floor. A calculation means for calculating an estimated arrival time at the second service floor that can be stopped and a position at which the express car is stopped when the estimated arrival time exceeds a predetermined time; and information on the calculated stop position. And an instruction creating means for creating an instruction to stop the express car and move the express car toward the first service floor.

JP 2011-51731 A

  By the way, as a countermeasure against disasters such as earthquakes, when an earthquake is detected, measures are taken such as detecting the position of the car at that time and moving the car to the nearest floor and stopping it. ing. However, in the unlikely event that an earthquake occurs and a part of a commercial building where an elevator system is installed is damaged, it is impossible to say that foreign objects enter the hoistway. In this case, since there is a possibility of affecting the raising / lowering operation of the car, a countermeasure against such a foreign matter is necessary.

  An object of the present invention is to provide an elevator system that can safely stop a car in a disaster such as an earthquake.

  The elevator system according to the present invention is pre-measured and associated data in a hoistway in which no foreign matter exists, and the position of the car and the upper side between the upper part of the car and the ceiling part of the hoistway A recording unit for recording the data including a recording distance and a lower recording distance between a lower part of the car and a bottom part of the hoistway; and the nearest floor when the disaster occurs. A control unit for stopping the vehicle, wherein the control unit is measured by emitting light toward the upper side of the car and by emitting light toward the lower side of the car. Based on the lower measurement distance and the data recorded in the recording unit, it is determined whether or not the foreign object exists in the hoistway, and the car is stopped more safely when the foreign object exists. Features that let you To.

  Further, in the elevator system according to the present invention, the control unit, after the disaster has occurred, stops the car while gradually lowering the raising / lowering speed of the car, and then the upper measurement distance and the lower It is preferable to measure the side measurement distance.

  Further, in the elevator system according to the present invention, the control unit determines whether the nearest floor is on the upper side or the lower side, and determines that the nearest floor is on the upper side. It is determined whether or not the measurement distance and the upper recording distance match, and if the upper measurement distance matches the upper recording distance, the car is moved to the nearest floor and stopped. When the upper measurement distance does not coincide with the upper recording distance, it is determined whether the lower measurement distance coincides with the lower recording distance, and the lower measurement distance is determined to be the lower recording distance. If it matches the distance, the car is moved to a lower nearest floor different from the upper nearest floor and stopped, and the lower measurement distance does not match the lower recording distance. Stops the car and notifies the monitoring center It is preferable.

  Further, in the elevator system according to the present invention, the control unit determines whether the nearest floor is on the upper side or the lower side, and determines that the nearest floor is on the lower side, It is determined whether the lower measurement distance matches the lower recording distance, and if the lower measurement distance matches the lower recording distance, the car is moved to the nearest floor If the lower measurement distance does not match the lower recording distance, it is determined whether the upper measurement distance matches the upper recording distance, and the upper measurement distance is When the upper recording distance coincides with the upper recording distance, the car is moved to an upper nearest floor different from the lower nearest floor and stopped, and the upper measurement distance does not coincide with the upper recording distance. Stop the car and notify the monitoring center It is preferable.

  Further, in the elevator system according to the present invention, the upper measurement distance and the lower measurement distance may be calculated by measuring a time until the measurement target portion is irradiated with a laser beam, reflected, and returned. preferable.

  According to the present invention, the car can be stopped more safely during a disaster such as an earthquake.

In embodiment which concerns on this invention, it is a figure which shows an elevator system. In embodiment which concerns on this invention, it is a figure which shows the mode in a passenger car. In embodiment which concerns on this invention, it is a figure which shows the mode of the surroundings of the landing door of the landing of each floor. 1 is a perspective view of a car in an embodiment according to the present invention. In embodiment which concerns on this invention, it is a flowchart which shows the procedure which performs the function to stop a car more safely at the time of the occurrence of an earthquake.

  Embodiments according to the present invention will be described below in detail with reference to the drawings. Also, in the following, in all the drawings, the same symbols are attached to the same elements, and the duplicate description is omitted. In the description in the text, the symbols described before are used as necessary.

  FIG. 1 is a diagram showing an elevator system 10. FIG. 2 is a diagram illustrating a state in the car 20. FIG. 3 is a diagram showing a situation around the landing door 28 of the landing 27 on each floor. The elevator system 10 includes a main rope 12, a counterweight 14, a hoisting machine 16, a control unit 18 that controls the entire elevator system 10, a recording unit 180 installed in the vicinity of the control unit 18, A car 20, a landing door 28, and a hoistway 30 are provided. Moreover, the elevator system 10 moves a passenger by raising and lowering between the halls 27 of each floor with respect to the car 20.

  The main rope 12 is a rope for suspending the car 20 and is wound around the hoisting machine 16. The main rope 12 has one end connected to the car 20 and the other end connected to a counterweight 14.

  The counterweight 14 is connected to the other end of the main rope 12, and a weight necessary for balancing with the car 20 connected to one end of the main rope 12 is set.

  The hoisting machine 16 is a device for raising and lowering the car 20 by driving the wound main rope 12 under the control of the control unit 18. The hoisting machine 16 is disposed in the machine room 8.

  The car 20 is a structure for moving up and down in the hoistway 30 when the hoisting machine 16 is operated under the control of the control unit 18 to carry passengers. The interior space of the car 20 is a space that is large enough to accommodate a predetermined number of people. The car 20 includes a car operating device 24 and a car door 26.

  The car operating device 24 includes a push button 242 for a passenger who has entered the car 20 to select a destination floor and open / close the car door 26, a floor where the car 20 is located, and other information. It is an operation panel provided with an indicator 244 for displaying. The car operating device 24 is attached to the sleeve wall 20 a adjacent to the car door 26 on the side wall of the car 20.

  The car door 26 is a door provided in the car 20, and when the car 20 reaches the landing 27 on the destination floor, both the landing doors 28 of the landing 27 open. Thereby, the passenger can get on and off the car 20.

  The landing doors 28 are doors provided at the landings 27 and open together with the passenger doors 26 when the passenger cars 20 land. Thereby, the passenger can get on and off the car 20.

  The hall 27 on each floor is provided with a three-way frame 32 composed of vertical frames 32a, 32b and a horizontal frame 32c, a hall operating device 34, and a hall door 28.

  The landing operating device 34 is an operation panel that displays a call button 342 for calling the car 20 and an indicator 344 for displaying a floor where the car 20 is located and other information. The landing operating device 34 is attached to a landing wall 35 adjacent to the landing door 28.

  The landing door 28 is a single-open door that can open and close an opening region 37 defined by the vertical frames 32 a and 32 b and the horizontal frame 32 c of the three-way frame 32.

  The vertical frames 32 a and 32 b and the horizontal frame 32 c of the three-way frame 32 are members provided at the landing 27 on each floor in order to define an opening area 37 that serves as an entrance for a passenger to get on and off the car 20. . The vertical frames 32a and 32b and the horizontal frame 32c are composed of members having appropriate strength and ferromagnetism. For example, it can be configured using iron.

  Here, in the elevator system 10, in particular, the upper measurement unit 40 provided at the upper part of the car 20, the lower measurement unit 42 provided at the lower part of the car 20, the recording unit 180, and the control unit 18 are characterized. Since it has, it explains in full detail below.

  The upper measuring unit 40 is a distance measuring device provided in plural on the upper surface of the car 20. The upper measurement unit 40 measures the time from irradiation of the laser beam toward the ceiling 30T of the hoistway 30 that is the measurement target unit, and reflection and return. And the ceiling portion 30T of the hoistway 30 can be measured. In addition, as shown in FIG. 4, it is preferable to install a total of five upper measurement units 40 at least at the four corners and the center of the upper surface of the car 20, and it is more preferable to install the upper measurement unit 40 by increasing the number. is there.

  The lower measurement unit 42 is a distance measurement device that is provided in a plurality on the lower surface of the car 20. The lower measurement unit 42 irradiates a laser beam from the lower surface of the car 20 toward the bottom 30B of the hoistway 30, which is a measurement target part, and measures the time until it returns and returns to the lower part of the car 20. And the bottom portion 30B of the hoistway 30 can be measured. As shown in FIG. 4, it is preferable to install a total of five lower corners 42 at least at the four corners and the center of the lower surface of the car 20, and it is more preferable to install the lower measurement unit 42 by increasing the number. It is.

The recording unit 180 moves the car 20 up and down when no foreign matter is present in the hoistway 30, and uses the upper measuring unit 40 and the lower measuring unit 42 to upper the car 20 and the ceiling of the hoistway 30. The upper recording distance D _UR , which is the distance to the portion 30T, the lower recording distance D _DR, which is the distance between the lower portion of the car 20 and the bottom 30B of the hoistway 30, and the position of the car 20 A database for recording associated data. Note that the recording unit 180 can be incorporated into a part of the control unit 18.

  Next, a procedure for executing a function of stopping the car 20 more safely when an earthquake occurs, which is one of the characteristic functions of the control unit 18, will be described with reference to the flowchart shown in FIG.

  The control unit 18 determines whether an earthquake has occurred in a commercial facility or the like where the elevator system 10 is installed, based on a notification from an earthquake detection unit (not shown) (S2). If it is determined in step S2 that no earthquake has occurred, the process returns to step S2.

If it is determined in step S2 that an earthquake has occurred, the car 20 is temporarily stopped while gradually reducing the speed of the car 20, and then the control unit 18 controls the car 20 at that time. The upper measurement distance D _UM and the car that are measured by detecting the position and measuring the time from irradiation of the laser beam toward the ceiling 30T of the hoistway 30 toward the ceiling 30T and reflection and return. The upper measuring unit 40 and the lower measuring unit 40 so as to measure the lower measuring distance _DDM measured by measuring the time from the lower part of 20 to the bottom 30B of the hoistway 30 irradiating and reflecting the laser beam. The side measuring unit 42 is controlled (S4). In the hoistway 30, if a foreign object is present on the upper side of the car 30, the laser beam is reflected by the foreign object. _Therefore , at least one of the upper measurement distances D _UM measured by the plurality of upper measurement units 40 is for upper recording. The distance _DUR does not match. Further, in the hoistway 30, since the laser beam when the foreign material on the lower side of the car 20 there is reflected to the foreign substance, at least one Tsugashita of lower measured distance D _DM measured by a plurality of upper measuring section 40 It does not coincide with the side recording distance _DDR . That is, when all the upper measurement distances D _UM and the upper recording distance D _UR match, it can be determined that there is no foreign object on the upper side of the car 20. Further, when all the lower measurement distances _DDM and the lower recording distance _DDR coincide with each other, it can be determined that there is no foreign object on the lower side of the car 20. In the following description, for the sake of easy understanding, it is assumed that the upper measurement distance D _UM , the upper recording distance D _UR , the lower measurement distance D _DM, and the lower recording distance D _DR are one.

  After the process of S4, the control unit 18 determines whether the nearest floor of the position of the car 20 at that time is on the upper side or the lower side (S6).

If it is determined in step S6 that the nearest floor is on the upper side, it is determined whether or not the upper measured distance D _UM matches the upper recording distance D _UR corresponding to the position of the car 20 at that time. (S10). If it is determined in step S10 that the upper measurement distance D _UM matches the upper recording distance D _UR , it is determined that there is no foreign object on the upper side, and the car 20 is moved to the uppermost nearest floor. To stop (S12).

If it is determined in step S10 that the upper measurement distance D _UM does not match the upper recording distance D _UR , it is determined that there is a foreign object on the upper side, and the lower measurement distance D _DM is that of the car 20 at that time. It is determined whether or not the lower recording distance _DDR corresponding to the position matches (S14). If it is determined in step S14 that the lower measurement distance _DDM is equal to the lower recording distance _DDR , it is determined that there is no foreign object on the lower side, and the uppermost floor described above is The car 20 is moved to a different nearest floor and stopped (S16).

In S16 in step, when the lower measuring distance D _DM does not match the lower recording distance D _DR is the one of the upper and lower judges that foreign matter is also present, the process proceeds to S28 in step.

If it is determined in step S6 that the nearest floor is on the lower side, it is determined whether or not the lower measurement distance _DDM matches the lower recording distance _DDR (S20). If it is determined in step S20 that the lower measurement distance _DDM matches the lower recording distance _DDR , it is determined that there is no foreign matter on the lower side, and the lower nearest floor is located. The car 20 is moved and stopped (S22).

If it is determined in step S20 that the lower measurement distance _DDM does not match the lower recording distance _DDR , it is determined that there is a foreign object on the lower side, and the upper measurement distance _DUM is the upper recording distance. It is determined whether or not the distance _DUR matches (S24). If it is determined in step S24 that the upper measurement distance _DUM is equal to the upper recording distance _DUR , it is determined that there is no foreign object on the upper side, and an upper side different from the lower nearest floor described above. The car 20 is moved to the nearest floor and stopped (S26).

If it is determined in step S26 that the upper measurement distance _DUM does not coincide with the upper recording distance _DUR , it is determined that foreign matter exists on both the upper side and the lower side, and the process proceeds to step S28.

  In step S28, the car 20 is stopped and notified to the monitoring center (S28). After the steps S12, S16, S22, S26, and S28, the process proceeds to the END process.

  Next, the operation of the elevator system 10 will be described.

  In the prior art, when an earthquake occurs in a commercial facility where an elevator system is installed, the car 20 is stopped at the nearest floor, but depending on the position of the car 20 at the time of the earthquake, In some cases, it may move upward or in some cases. In addition, due to the influence of this earthquake, foreign matter may enter the hoistway 30 and hinder the elevator 20 from moving up and down.

However, the elevator system 10 of the present embodiment measures the upper measurement distance D _UM and the lower measurement distance D _DM after stopping while slowly reducing the speed of the car 20 when an earthquake occurs. It is determined whether the nearest floor is on the upper side or the lower side. Based on the position of the car 20, the upper measurement distance D _UM , the lower measurement distance D _DM , the upper recording distance D _UR and the lower recording distance D _DR , the control unit 18 When it is determined that there is a foreign object on either the upper side or the lower side of the car 20, the car 20 is moved to the nearest floor where the car 20 can be stopped more safely and stopped. When the controller 18 determines that there is a foreign object on both the upper side and the lower side of the car 20 in the hoistway 30, the control unit 18 notifies the monitoring center while the car 20 is kept on standby for maintenance. Wait for rescue by workers. Therefore, according to the elevator system 10, the car can be stopped more safely when an earthquake occurs.

  8 machine room, 10 elevator system, 12 main rope, 14 counterweight, 16 hoisting machine, 18 control unit, 20a sleeve wall, 24 car operation device, 26 car door, 27 landing, 28 landing door, 30 hoistway , 30B bottom, 30T ceiling, 32 three-sided frame, 32a, 32b vertical frame, 32c horizontal frame, 34 landing operating device, 35 landing wall, 37 opening area, 40 upper measurement unit, 42 lower measurement unit, 180 recording unit, 242 push button, 244 indicator, 342 call button, 344 indicator.

Claims (5)

Pre-measured and associated data in a hoistway where no foreign object exists, the position of the car, the upper recording distance between the upper part of the car and the ceiling of the hoistway, and the car A recording unit for recording the data including a lower recording distance between a lower part of the hoistway and a bottom part of the hoistway;
A control unit that stops the car at the nearest floor when a disaster occurs;
With
The controller is
Upper measurement distance measured by emitting light toward the upper side of the car, lower measurement distance measured by emitting light toward the lower side of the car, and the recorded in the recording unit An elevator system that determines whether or not the foreign object is present in the hoistway based on the data and stops the car safely when the foreign object is present. The elevator system according to claim 1,
The controller is
An elevator system, wherein when the disaster occurs, the upper measurement distance and the lower measurement distance are measured after the car is stopped while gradually lowering the raising / lowering speed of the car. In the elevator system according to claim 1 or 2,
The controller is
Determine whether the nearest floor is above or below,
If it is determined that the nearest floor is on the upper side, determine whether the upper measurement distance and the upper recording distance match,
If the upper measurement distance coincides with the upper recording distance, move the car to the nearest floor and stop it,
If the upper measurement distance does not match the upper recording distance, determine whether the lower measurement distance matches the lower recording distance,
If the lower measurement distance coincides with the lower recording distance, the car is moved to a lower nearest floor different from the upper nearest floor and stopped.
When the lower measurement distance does not coincide with the lower recording distance, the elevator system is stopped and notified to the monitoring center. In the elevator system according to any one of claims 1 to 3,
The controller is
Determine whether the nearest floor is above or below,
If it is determined that the nearest floor is on the lower side, determine whether or not the lower measurement distance and the lower recording distance match,
If the lower measurement distance matches the lower recording distance, move the car to the nearest floor and stop it.
If the lower measurement distance does not match the lower recording distance, determine whether the upper measurement distance matches the upper recording distance;
If the upper measurement distance coincides with the upper recording distance, the car is moved to an upper nearest floor different from the lower nearest floor and stopped.
When the upper measurement distance does not coincide with the upper recording distance, the elevator is stopped and notified to the monitoring center. The elevator system according to any one of claims 1 to 4,
The upper measurement distance and the lower measurement distance are calculated by measuring the time taken to irradiate and reflect a laser beam toward the measurement target part and return.

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