JP4761902B2 - Elevator equipment - Google Patents

Description

  The present invention relates to an elevator apparatus that lifts and stops a plurality of elevator cars moving up and down in a hoistway at arbitrary positions.

  In Patent Document 1, a hoistway having a predetermined normal operating range of an elevator car and a specific operating range (a range exceeding the uppermost floor or the lowermost floor of the normal operating range) that is determined in advance and a car, Detecting means for detecting whether or not the vehicle is located within a specific operating range in the hoistway, and control for controlling the operation of the car located in the specific operating range and in the inspection mode based on the detection result by the detecting means An elevator comprising means is disclosed.

In a conventional elevator system, when there is only one elevator car to be controlled, the safety switch is manually turned on and off by the inspection worker, so that the elevator operating range is changed from the normal operating range to the specific operating range. By driving to the elevator in the maintenance operation mode after changing to, the car can be inspected while ensuring the safety of the worker. Thereby, for example, an inspection worker who has boarded the upper part of the car can perform work such as cleaning at a location above the top floor landing in the hoistway. Even in the case where the observation glass is provided, it is possible to clean the inside of the upper end of the observation glass satisfactorily.
JP 2004-284863 A

  However, according to the conventional elevator apparatus, when a plurality of units that are respectively operated in the same hoistway are provided, the control unit provided in one unit has the normal operation mode and the inspection operation of the unit. It is only necessary to perform control in each mode by switching between the modes, and the inspection worker is inspected for the machine that he / she is inspecting, even if safety is ensured by the technique of Patent Document 1. In the situation where the unit adjacent to the unit being operated is operating in the normal operation mode, maintenance inspections are performed by the wind that is generated when the adjacent unit is lifted and the dust flying in the hoistway. There is a problem in that the health and safety of inspection workers may be impaired.

  The present invention has been made in view of the above problems, and when a plurality of units are operating in one hoistway, the operating range corresponds to the specific operating range of the unit operating in the inspection mode. By controlling the operation of adjacent units in operation, it is possible to ensure the safety of maintenance inspection work in the inspection mode and health management of workers in any of the multiple units operating in the same hoistway. An object of the present invention is to provide an elevator apparatus capable of realizing the above.

  In order to solve the above-described problems, an elevator apparatus according to the basic configuration of the present invention includes a normal operation range that can be set in advance for a range in which the elevator car normally moves up and down, and a specific operation that is a range that is continuous with the normal operation range. A hoistway having a range, a detecting means for detecting whether the car is located within the specific operating range in the hoistway, and the specific operation based on a detection result detected by the detecting means And an elevator apparatus comprising a control means for controlling the car located within a range in an inspection mode, wherein each of the plurality of cars installed in the hoistway and each of the plurality of cars are adjacent to each other. Regardless of the operating range of the second car when located in the first car specific operating range other than the first car normal operating range set for the first car, Characterized in that it comprises a control means for controlling said second car adjacent the car inspection mode in which addition of certain limitations with respect to the second car of the lift operation.

  In the elevator apparatus according to the basic configuration described above, the control unit is configured such that the detection unit of the first car has a first car specific operation range between an upper limit of the normal operation range of the first car and an uppermost end of the hoistway. The second car may be controlled in the adjacent car inspection mode when it is detected that the first car is located.

  In the elevator apparatus according to the above basic configuration, the control means is configured such that the detection means of the first car is in a first car specific operation range between a lower limit of the first car normal operation range and a lowermost end of the hoistway. The second car may be controlled in the adjacent car inspection mode when it is detected that the first car is located.

In the elevator apparatus according to the basic configuration, the control means controls the second car so as to stop the operation of the second car in the first car specific operation range in the adjacent car inspection mode. It is good as a feature.

  In the elevator apparatus according to the basic configuration, the control means controls the second car so that the second car in the first car specific operation range is operated at a low speed in the adjacent car inspection mode. It is good as a feature.

  In the elevator apparatus according to the basic configuration, the control means causes the second car to input an operation signal when the first car is in the first car specific operation range in the inspection mode. The second car may be controlled so as to stop the operation.

  In the elevator apparatus according to the basic configuration, the control means causes the second car to input the operation signal when the first car is in the first car specific operation range in the inspection mode. The second car may be controlled so that the normal operation is performed only outside the first car specific operation range.

  In the elevator apparatus according to the basic configuration, the first car control means provided in the first car controls the first car in the inspection mode, and the second car control means provided in the second car includes the first car. Display for controlling the current state of the first and second cars to be displayed on the operation state display means including the hall indicator and the monitor panel display when the two cars are controlled in the adjacent car inspection mode. A control unit may be further provided.

  According to the elevator apparatus according to the present invention, when the first car is being inspected in the specific operating range in the inspection mode in the same hoistway, the second car that moves up and down in the range corresponding to the specific operating range. Since the operation is controlled so as to operate with a specific restriction, the safety and health management of the inspection worker who performs the inspection work of the first car can be ensured. In addition, by configuring the system so that the elevator user is informed that the inspection work is being performed, it is possible to widely inform the user of the execution of the inspection work, so that not only the inspection workers but also many users can check. It becomes possible to provide work information, and the safety of the entire elevator drive system can be improved.

  Hereinafter, embodiments of an elevator apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

[First Embodiment]
First, the elevator apparatus by 1st Embodiment of this invention is demonstrated using FIG. 1 thru | or FIG. In FIG. 1 showing the basic configuration of the first embodiment, an elevator hoistway 1 is provided with an observation glass 1a, and elevator cars 2A and 2B of two elevators, Unit A and Unit B, are moved up and down in the hoistway 1. To do. The method of driving these cars 2A and 2B may be a balance raising / lowering method in which the sheaves 4a and 4b are lifted / lowered by the balance of the counterweight 5 via the rope 3; This method may be used.

  In Unit A shown on the left side of FIG. 1, a forced deceleration limit switch 7a is provided in the vicinity of the uppermost floor 6a of the hoistway 1, and this switch 7a is matched to the size of the spiral cam 10 provided on the side surface of the car 2A. Thus, a plurality of forced deceleration limit switches 7c are installed at regular intervals so that the ON state of the forced deceleration limit switch 7a is not interrupted. The direction limit switch 8a and the final limit switch 9a are installed at a location near the ceiling at the upper end of the hoistway 1. On the side surfaces of the cars 2A and 2B facing the various switch mounting walls of the hoistway 1, there are provided spiral cams 10 that come into contact with the contacts of each switch. On the bottom surface of the hoistway 1, a car buffer 11 a for receiving the cars 2 </ b> A and 2 </ b> B at the lowermost end of the hoistway 1 and a counterweight buffer 11 b for receiving the lowering of the counterweight 5 are provided in two pairs for the A machine and the B machine, respectively. It has been.

  In the example shown in FIG. 1, the case where Unit B moves up and down in consideration of safety with respect to the worker 12 while the inspection worker 12 gets on the car 2A of Unit A and performs the inspection work is shown. However, the safety switch 13 is also provided on the car 2B because the A and B machines may be in opposite operating states. Since the top floor 6a of Unit B is above the top floor 6a of Unit A, this first embodiment shows an example of an upper step, and is located on the right side of the hoistway 1 where switches of Unit B are provided. Described on the side walls are the top floor 6a of Unit B from the top, the top floor 6ab of Unit A, and the bottom floor 6b common to Units A and B. Unit B should operate normally in the normal operating range 6a-6b on the right side of the hoistway 1 in FIG. 1, which is the normal operating range of its own unit, but when Unit A is under maintenance inspection work Is determined to be between the adjacent machine specific angle ranges between 6a to 6ab, which is the specific operation range of the A car, and is controlled to perform limited operations such as stopping the car 2B and low speed operation.

  The elevator apparatus according to the first embodiment having the basic configuration described above includes a normal operation range (between 6a and 6b) that can be set in advance for a range in which the elevator car 2A or 2B performs a normal lifting operation, and this normal Whether the hoistway 1 having a specific operation range (above 6a or lower than 6b) that is a range continuous with the operation range and whether the car 2A or 2B is located within the specific operation range in the hoistway 1 is determined. In an elevator apparatus comprising a detecting means 7a for detecting, and a control means 15 for controlling the car 2A or 2B located within a specific operating range (above 6a) in an inspection mode based on the detection result detected by the detecting means 7a. A plurality of cars 2A and 2B installed in the hoistway 1 and a plurality of cars 2A and 2B are provided in the first car 2A. When the second car 2B moves up and down regardless of the operating range of the second car 2B when it is located within the first car specific operating range (above 6a) other than the normal operating range of the first car. A control means 15B is provided for controlling the second car 2B in the adjacent car inspection mode that adds a specific restriction.

  The elevator control device 15 includes a No. A machine control unit 15A and a No. B machine control unit 15B. Unit A control unit 15A outputs an operation signal 20 indicating that Unit A is operating within its specific operating range to Unit B control unit 15B, and Unit B control unit 15B The operation signal 21 indicating that the vehicle is operating is output to the No. A machine control unit 15A.

  In the first embodiment shown in FIG. 1, the mounting positions of the forced deceleration limit switch 7a, the direction limit switch 8a, and the final limit switch 9a for Unit B whose normal operating range is different from the upper level are the top floor 6a of Unit B. However, a plurality of forced deceleration limit switches 7c such as No. A may be provided between the forced deceleration limit switch 7a and the direction limit limit switch 8a.

  Next, the operation of the elevator apparatus of FIG. 1 will be described with reference to FIG. 2 showing a flowchart for explaining the operation of the first embodiment. The flow chart of FIG. 2 is described centering on the operation of the A-unit, and it is assumed that the car 2A is operating from the lower side to the upper side with respect to the top floor landing 6a in the elevator operation. In FIG. 2, first, when the worker 12 presses the safety switch 13 on the car 2A of the No. A car to set the maintenance inspection mode, an inspection signal 13a is output to the No. A controller 15A of the elevator controller 15. The A machine controller 15A determines whether the current operation mode is the normal operation mode or the maintenance operation mode (step S101).

  As a result of the determination, if it is determined that the current operation mode is the normal operation mode, it is determined in step S130 whether the adjacent car, that is, in this case, car B is in the maintenance operation mode. When the vehicle is operated in the mode, the vehicle is operated in the adjacent car inspection mode described later with reference to FIG. When it is determined in step S130 that the adjacent car is not in the maintenance operation mode, the elevator control device 15 operates the car 2A at a predetermined speed for normal operation mode (for example, 90 meters per minute) (step S109). . If it is determined in step S101 that the current operation mode is set to the normal operation mode, the ascending / descending speed of the car 2A is set to a predetermined low speed (for example, 15 meters per minute) for the maintenance operation mode. (Step S102). When the spiral cam 10 comes into contact with the forced deceleration limit switch 7a due to the operation of the car 2A, the switch 7a is turned on (step S103), and then it is determined whether there is an adjacent machine in step S120. If there is an adjacent machine, the processing described later in FIG. 3 is performed. When it is determined that there is no adjacent car, the car 2A operates as it is in the hoistway 1 and upwards to the uppermost floor (step S104).

  When the car 2A operates further upward and the spiral cam 10 comes into contact with the direction limit limit switch 8a, the switch 8a is turned on (step S105), and the car 2A is moved upward by a lift operation button (not shown) in the car 2A. The operation for instructing the operation of the vehicle is invalidated and the upward operation of the No. A machine is prohibited (step S106). When the car 2A moves further upward and the spiral cam 10 contacts the final limit switch 9a, the switch 9a is turned on, and when the switch 9a is determined to be on (step S107), the car 2A The raising / lowering operation is forcibly stopped (step S108), and the processing operation ends.

  On the other hand, in the normal operation mode (step S109), when the car 2A is operated above the landing position of the top floor landing 6a due to an abnormality in the equipment and the like, and the spiral cam 10 comes into contact with the forced deceleration limit switch 7a, The car 2A is decelerated so that the ascending / descending speed is 45 meters or less per minute (steps S110 to S111). The car 2A is further moved upward to determine whether or not the spiral cam 10 is in contact with the final limit switch 9a (step S112). When the car 2A is in contact, the operation is stopped (step S113), and the process is terminated. .

  According to the above operation, since the direction limit switch 8a and the final limit switch 9a are installed above the landing position of the top floor landing 6a of Unit A, the car 2A is attached to the top floor landing 6a. Even if it operates above the floor position, the operation of the car of Unit A can be continued. As a result, the worker 12 who has boarded the upper surface of the car 2A can perform an inspection operation at a location above the top floor landing 6a in the hoistway 1, for example, the observation glass 1a of the hoistway 1 is made up of the hoistway 1. Even when it is provided up to the upper end of the inside, the observation glass 1a and the like can be cleaned.

  FIG. 3 is a flowchart showing the processing operation after step S120 in the maintenance operation mode of the No. A machine in FIG. 2, in which the car 2A of the No. A machine is operating in a specific operating range exceeding the top floor 6a. When the car 2A is operating in the specific operating range, the car A is operated within the specific operating range for the adjacent car, in this case, the B car. The operation signal 20 which shows that it is present is output (step S122). Unit A always repeats the determination in step S121 while its own car 2A is operating within the specific operating range. If it is determined in step S121 that the car 2A of the No. A car is not in operation within the specific operating range, it is within the specific operating range of the No. A machine that has been output to the adjacent No. B machine. The output of the operation signal 20 indicating the operation is stopped (step S123).

  FIG. 4 is a flowchart showing the control of Unit B in contrast to the control of Unit A operating in the maintenance operation mode. If the overall operation flow of FIG. 2 is also applied to Unit B, FIG. 2. If it is determined in Step S130 of No. 2 that the adjacent car, that is, Car A is in the maintenance operation mode, is the operation signal 20 indicating that the car is operating in the specific operating range from Car A being input. It is determined whether or not (step S131). If it is determined that Unit A is operating in the specific operating range, Unit B stops the elevator operation (step S132), but the operation signal 20 in the specific operating range is not input from Unit A. If it is determined that the vehicle is the one, the elevator of the Unit B performs normal operation (step S133).

  In addition, 1st Embodiment outputs the driving signal 20 in the specific operation range (range exceeding a top floor) to the adjacent elevator with respect to the conventional elevator apparatus described in the cited reference 1, and FIG. 3 and FIG. 4 is different in that the processing shown in the flowchart of FIG. 4 is added. According to the configuration of the first embodiment, the car 2A is located in a specific operation range that is continuous with the normal operation range in the hoistway 1. In this case, when the maintenance inspection work is being performed in the maintenance operation mode, the raising and lowering of the car 2B of the car No. B, which is an adjacent car No., is stopped to ensure work safety.

[Second Embodiment]
Next, an elevator apparatus according to the second embodiment will be described with reference to FIG. In the second embodiment, as shown in FIG. 4, the operation of the B machine in the first embodiment is stopped when the A machine outputs an operation signal in a specific operating range. On the other hand, as shown in FIG. 5, the B machine is normally operated only outside the A machine specific operation range.

  Since the configuration and the flow of processing shown in FIGS. 1 to 3 are the same as those of the elevator apparatus of the first embodiment, a duplicate description is omitted. When the flowchart of FIG. 2 is applied to the operation of Unit B, since Unit B is not in the maintenance operation mode, the process proceeds from Step S101 to Step S130 to determine whether the adjacent unit, that is, Unit A is in the maintenance operation mode. Since Unit No. is in the maintenance operation mode, the process proceeds to the flowchart of FIG. 5 and the processing operation in Unit B is started.

  In step S141, it is determined whether or not Unit B is receiving an operation signal 20 in a specific operating range from Unit A. While this operation signal 20 is being output from Unit A, Unit B is in specific operation of Unit A. A normal operation is performed outside the range (step S142). If it is determined that the operation signal 20 in the specific operating range is not input from the A machine, the B machine performs a normal operation in step S143.

  As described above, according to the second embodiment, when the machine A is in the inspection mode as in the first embodiment, the operation of the machine B is not completely stopped, but only within the specific operation range of the machine A. Since normal operation is performed outside the specific operating range of Unit A, even if one of the multiple units is in maintenance inspection mode, the other units are in maintenance inspection mode. Normal operation can be performed within a range that does not hinder the operation.

   In the first and second embodiments, the operation signal 20 is output when the machine A is in the specific operation range, and the operation of the machine B is completely stopped while the operation signal 20 is being input. However, the present invention is not limited to this, but only the second car in the specific operating range of the A machine in the adjacent car A inspection mode is described. The second car 2B may be controlled so as to stop the operation of 2B. In the adjacent car inspection mode, the second car 2B in the specific operating range of the No. A machine may be operated at a low speed without being stopped.

[Third Embodiment]
Next, an elevator apparatus according to a third embodiment will be described with reference to FIGS. 6 and 7. In the first and second embodiments, the normal operation range of Unit B is different from the normal operation range of Unit A. However, in the third embodiment, the normal operation range of Unit A is This is an example in which the normal operating range of Unit B is stepped downward.

  In FIG. 6, the normal operating range of Unit A is between the top floor 6a and the bottom floor 6b. In both the A and B machines, the cars 2A and 2B are lifted and lowered in balance with the counterweight 5 by sheaves 4a and 4b via the rope 3. In the vicinity of the lowest floor 6b of the hoistway 1, there are a plurality of forced deceleration switches 7b so that the forced deceleration switch 7b is not interrupted according to the size of the spiral cam 10 provided on the car 2A from the forced deceleration limit switch 7b. 7d are arranged at regular intervals. Further, the direction limit switch 8b and the final limit switch 9b are also provided with their positions shifted below the hoistway 1.

  The normal operation range of Unit B in FIG. 6 is shifted to the lower side of the hoistway 1 from the normal operation range of Unit A, and the top floor 6a of Unit B is the same as the top floor 6a of Unit A. However, the position of the lowest floor 6b of Unit B is shifted to a lower side than 6ab corresponding to the lowest floor of Unit A. The positions of the forced deceleration limit switch 7b, the direction limit switch 8b, the final limit switch 9b, and the like are the same as those of a normal elevator device.

  FIG. 7 is a flowchart for explaining the processing operation of the elevator apparatus according to the third embodiment. In this elevator lifting / lowering operation, the car 2A operates from the upper position to the lower position with respect to the lowest floor landing 6b. It shall be. First, when the maintenance operation mode for inspection is set by the operator 12 pressing the safety switch 13 provided on the upper surface of the car 2A of the No. A machine, an inspection signal 13a is output to the No. A controller 15A. The A machine controller 15A determines whether the current operation mode is set to the normal operation mode or the maintenance operation mode (step S101).

  As a result of the determination in step S101, if it is determined that the current operation mode is the normal operation mode, it is determined in step S130 whether or not the adjacent car, that is, in this case, car B is in the maintenance operation mode. When the vehicle is operated in the maintenance operation mode, the vehicle is operated in the adjacent car inspection mode described above with reference to FIG.

  When it is determined in step S130 that the adjacent car is not in the maintenance operation mode, the elevator control device 15 operates the car 2 at a predetermined speed (for example, 90 meters per minute) for the normal operation mode (step S109). .

  If it is determined in step S101 that the current operation mode is set to the maintenance operation mode, the raising / lowering speed of the car 2A is set to a predetermined low speed (for example, 15 meters per minute) for the maintenance operation mode. (Step S102). When the spiral cam 10 comes into contact with the forced deceleration limit switch 7b due to the operation of the car 2A, the switch 7b is turned on (step S103), and then it is determined whether there is an adjacent machine in step S120. If there is an adjacent machine, the above-described processing of FIG. 3 is performed. When it is determined that there is no adjacent car, the car 2A operates as it is in the hoistway 1 downward and below the lowest floor (step S104).

  When the car 2A operates further downward and the spiral cam 10 comes into contact with the direction limit limit switch 8b, the switch 8b is turned on (step S105), and the car 2A is moved downward by an elevator operation button (not shown) in the car 2A. The operation for instructing the operation of the vehicle No. becomes invalid, and the downward operation of Unit A is prohibited (step S106). When the car 2A further moves downward and the spiral cam 10 comes into contact with the final limit switch 9b, the switch 9b is turned on, and when the switch 9b is determined to be on (step S107), the car 2A The raising / lowering operation is forcibly stopped (step S108), and the processing operation ends.

  On the other hand, in the normal operation mode (step S109), when the car 2A is operated below the landing position of the lowest floor landing 6b due to an abnormality of the equipment, etc., and the spiral cam 10 contacts the forced deceleration limit switch 7b. The car 2A is decelerated so that the ascending / descending speed is 45 meters or less per minute (steps S110 to S111). The car 2A further moves downward to determine whether or not the spiral cam 10 has come into contact with the final limit switch 9b (step S112). If so, the operation is stopped (step S113), and the process ends. .

  According to such a configuration, the direction limit switch 8b and the final limit switch 9b are provided below the landing position of the lowest floor landing 6b, so that the car 2A can be landed on the lower floor landing 6b. Even if it is operated downward with respect to the position, the operation of the car of the No. A machine can be continued. As a result, the worker 12 riding on the upper part of the car 2A of Unit A can perform maintenance and inspection work at a location below the lowest floor landing 6b in the hoistway 1, for example, the observation glass of the hoistway 1 Even when 1a is provided up to the lowest end portion of the hoistway 1, the lowest end portion of the observation glass 1a can be cleaned.

  The flow of the processing operation in the elevator apparatus according to the third embodiment at this time is the same as the operation flow in the first embodiment shown in FIG. FIG. 3 is a flowchart showing the processing operation after step S120 in the maintenance operation mode of the No. A machine in FIG. 2, in which the car 2A of the No. A machine is operating in a specific operating range exceeding the lowest floor 6b. (Step S121), when the car 2A is operating in the specific operating range, the A unit is operated within the specific operating range for the adjacent unit, in this case, the B unit. The operation signal 20 which shows that it is present is output (step S122). Unit A always repeats the determination in step S121 while its own car 2A is operating within the specific operating range. If it is determined in step S121 that the car 2A of the No. A car is not in operation within the specified operating range, the No. A car that has been output to the adjacent No. B machine, that is, the No. B car is in the specified operating range. The output of the operation signal indicating that the vehicle is operating is stopped (step S123).

  FIG. 4 is a flowchart showing the control of Unit B in contrast to the control of Unit A operating in the maintenance operation mode. If the overall operation flow of FIG. 2 is also applied to Unit B, FIG. If it is determined in step S130 of No. 2 that the adjacent car, that is, car A is in the maintenance operation mode, whether or not an operation signal indicating that the car is operating in the specific operating range from car A is being input. Is determined (step S131). When it is determined that Unit A is operating in its specific operating range, Unit B stops the operation of the elevator (Step S132), but the operation signal in the specific operating range is not input from Unit A If it is determined that, the elevator of Unit B performs normal operation (step S133).

  In addition, 1st Embodiment outputs the driving signal 20 in the specific operation range (range exceeding a lowest floor) with respect to the conventional elevator apparatus described in the cited reference 1, and FIG. 4 is different in that the processing shown in the flowchart of FIG. 4 is added. According to the configuration of the third embodiment, the car 2A is located within a specific operation range that is continuous with the normal operation range in the hoistway 1. In this case, when the inspection operation is performed in the maintenance operation mode, the adjacent unit is stopped to ensure the safety of the operation. In the processing step S130 of FIG. 7, it is determined whether the adjacent car No. B in this case is in the maintenance operation mode by pressing the safety switch 13 provided on the upper surface of the car 2B of the car B and checking the signal 13a. Is output to the Unit B control unit 15B, and the operation signal 21 is output from the Unit B control unit 15B to the Unit A control unit 15A to indicate that the Unit B is operating within the specific operating range. It is done.

  Although not described repeatedly, also in the third embodiment, the control as shown in FIG. 5 can be performed in the No. B machine as in the second embodiment relative to the first embodiment. That is, it is determined whether or not the B car controller 15B is inputting the operation signal 20 within the specific operating range of the car A of the A car, and the car 2A of the A car is operating in the specific operating range. In such a case, the operation of the car 2B of the car B is normally operated only outside the specific operation range of the car A, and the car 2A of the car A is not operating within the specific operation range and is operating normally. The B machine is also controlled to operate normally.

[Fourth Embodiment]
Finally, an elevator apparatus according to a fourth embodiment of the present invention will be described with reference to FIG. In the elevator apparatus according to the fourth embodiment, as described in the first to third embodiments, in the elevator apparatus having the adjacent unit, the specific unit is operated in the maintenance operation mode in the specific operation range. In addition to the configuration in which the operation of the adjacent unit is operated in an operating state that can ensure the safety of the inspection worker, the specified (A) unit is in the maintenance operation mode, and the adjacent (B) unit is in the specified operating range of the A unit. The system is configured to notify the elevator user that the operation is stopped or the save operation is being performed.

  This will be described in detail with reference to FIG. FIG. 8 is an explanatory view showing the configuration of the elevator apparatus according to the fourth embodiment, and the same reference numerals as those in FIGS. 1 and 6 denote the same components as those of the elevator apparatus of the first and third embodiments. A duplicate description is omitted as shown. In FIG. 8, a car position detection switch 14 is provided between the forced deceleration switch 7a of the observation glass 1a on the left side of the figure and a plurality of forced deceleration limit switches 7c, and this switch 14 is provided. When the car 2A of the No. A car is located at the given location, this is detected and a car position signal 14a is output to the No. A car controller 15A. The car position detection switch 14 and the car position signal 14a are also provided on the display glass 1a side of the No. B side.

  Although not shown in the figure, between each of a plurality of forced deceleration limit switches 7c, or between the upper limit switch 7c and the direction limit limit switch 8a and between the direction limit limit switch 8a and the final limit switch 9a. A car position detection switch 14 may be provided between them. The car position detection switch 14 may be provided on the lower side of the observation glass 1a.

  Further, in FIG. 8, the A-unit control unit 15A and the B-unit control unit 15B are connected to the hall indicator 16 and the monitoring panel display 17, and the car position detection signal 14a when the car 2 of the own car is in a specific operating range. Is displayed on the hall indicator 16 or the monitoring panel display 17. In the fourth embodiment, the operation signal 20 (or 21) in the maintenance operation mode in the specific operation range is output to the adjacent car, and the processes shown in FIGS. 3, 4, and 5 are performed. This is different from the conventional elevator device. According to such a configuration, when the car 2A or 2B of any car is located in a place other than the normal operating range (between 6a and 6b) in the hoistway 1, the car position is displayed. It is possible to widely inform the elevator users that maintenance work is being performed and to gain the understanding of the users.

  In addition, when maintenance inspection work is performed in Unit A and Unit B is stopped, as shown in the fourth embodiment, for example, to the hall indicator 16, the monitor panel display 17, or the hall notification device (not shown) , "We are currently cleaning the hoistway observation glass. Please wait for a while until it can be used."

Explanatory drawing which shows the structure of the elevator apparatus by 1st Embodiment. The flowchart explaining operation | movement of 1st Embodiment. The flowchart explaining operation | movement of A machine. A flow chart explaining an example of operation of No. B machine. The flowchart explaining another example of No. B machine operation | movement as 2nd Embodiment. Explanatory drawing which shows the structure of the elevator apparatus by 3rd Embodiment. The flowchart explaining operation | movement of 3rd Embodiment. Explanatory drawing which shows the structure of an elevator apparatus by 4th Embodiment.

Explanation of symbols

1 hoistway 2A Car of Unit A (first car)
2B Car of Unit B (second car)
15 Elevator control device (control means)
15A Unit A control unit (control means)
15B Unit B control section (control means)
6a Top floor platform 6b Bottom floor platform 6ab Adjacent unit top / bottom platform 12 Inspection worker 13 Safety switch 13a Inspection signal

Claims (8)

A hoistway having a normal operation range that can be set in advance for a range in which the elevator car performs normal lifting operation and a specific operation range that is continuous with the normal operation range, and the specification in the hoistway Detection means for detecting whether or not the vehicle is located within the operating range; and control means for controlling the car located within the specific operating range in an inspection mode based on a detection result detected by the detection unit. In an elevator apparatus comprising:
Wherein a plurality of cars having a particular operating range of different Rutotomoni respectively installed in the hoistway, said plurality of first other than the first cage normal operation range set in the first squirrel adjacent with provided each cage only adding certain restrictions on vertical movement of the second cage regardless of the operating range of the second cage adjacent to the first cage when the first car into the car specific operating range is located Control means for controlling the second car in such an adjacent car inspection mode;
An elevator apparatus comprising:   In the control means, the first car is positioned in a first car specific operating range between the upper limit of the normal operating range of the first car and the uppermost end of the hoistway. The elevator apparatus according to claim 1, wherein the second car is controlled in the adjacent car inspection mode when this is detected.   In the control means, the first car is positioned in a first car specific operating range between the lower limit of the normal operating range of the first car and the lowest end of the hoistway. The elevator apparatus according to claim 1, wherein the second car is controlled in the adjacent car inspection mode when this is detected.   The said control means controls the said 2nd car so that the operation | movement of the said 2nd car in the said 1st car specific operation range may be stopped in the said adjacent car inspection mode. Elevator device.   The said control means controls the said 2nd car so that the said 2nd car in the said 1st car specific operation range may be operated at low speed in the said adjacent car inspection mode. Elevator device. The control means causes the second car to input an operation signal when the first car is in the first car specific operation range in the inspection mode, so that the second car in the first car specific operation range is input. The elevator apparatus according to claim 1, wherein the second car is controlled to stop operation.   The control means inputs an operation signal to the second car when the first car is in the first car specific operating range in the inspection mode, and the second car is only out of the first car specific operating range. The elevator apparatus according to claim 1, wherein the second car is controlled so as to be normally operated.   The first car control means provided in the first car controls the first car in the inspection mode, and the second car control means provided in the second car controls the second car in the adjacent car inspection mode. And a display control unit for controlling the operating state display means including the hall indicator and the monitoring panel display so as to display the current state of the first and second cars. The elevator apparatus according to claim 1.

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