JP2013170040A - Elevator system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify overall structure and significantly improve transportation capacity when crowded with a large number of passengers.SOLUTION: An elevator system 10 includes: a plurality of cars 1a, 1b, 1c disposed in the same hoistway 10a; and drive devices 2a, 2b, 2c installed in each car 1a, 1b, 1c. Distance sensors composed of a light emitting portion 4A and a light receiving portion 4B are provided among the cars 1a, 1b, 1c. The signals from the distance sensors 4A, 4B are input to the control device 5. The control device 5 has an independent operation mode and an interlocking operation mode. In the interlocking operation mode, the control device 5 keeps distances among the car 1a, 1b, 1c constant on the basis of the signals from the distance sensors 4A, 4B.

Description

  The present invention relates to an elevator system having a plurality of cars arranged in the same hoistway.

  Conventionally, as an elevator system having a plurality of cars arranged in the same hoistway, an elevator system in which a plurality of cars are arranged in the same hoistway and a rope type traction elevator car in the same hoistway. There are known elevator systems arranged in a plurality of columns.

  In any elevator system, among the cars traveling in the same hoistway, the car with the shortest waiting time arrives individually, and the operation control is performed so as to shorten the waiting time of the passenger as much as possible. Yes.

  However, in the conventional mode of operation, even when a large number of passengers are concentrated on a specific floor such as when going to work or holding an event, the passengers are dispatched so that the waiting time of the passengers becomes as small as possible for each car call. For this reason, the transportation efficiency may deteriorate as a large-scale transportation to a certain destination floor.

  In such a case, for the purpose of mass transportation, it is considered that each car is connected by a connecting mechanism and the same control as that of the double deck is performed. However, when such a structure is adopted, each car is connected. Therefore, a complicated connecting mechanism for connecting the car and a complicated connecting action for connecting the cars are also required.

Japanese Patent Laid-Open No. 2001-226048

  The present invention has been made in consideration of the above points, and in an elevator system having a plurality of cars arranged in the same hoistway, a large amount of the system can be obtained without complicating the overall structure. An object of the present invention is to provide an elevator system capable of improving the transportation capacity when passengers concentrate and improving the convenience of the entire user.

  The present invention provides a plurality of cars arranged in the same hoistway, a driving device for driving each car independently of each other, and a pair of adjacent cars, and between the pair of cars A distance sensor that measures the distance of the vehicle, and a control device that receives a signal from the distance sensor and controls a driving device corresponding to each car. The control device operates a plurality of cars independently of each other. Either the operation mode or the linked operation mode in which a plurality of cars are operated in conjunction with each other, and when the linked operation mode is set, the control device responds to each car based on the signal from the distance sensor. The elevator system is characterized in that the distance between the cars is kept constant by controlling the driving device.

  In the present invention, the control device determines a car that operates in the linked operation mode according to a preset date and time and operation conditions, and corresponds to each car based on a signal from a distance sensor for the car that takes the linked operation mode. It is an elevator system characterized by controlling the drive device to perform.

  The present invention is an elevator system characterized in that, when the control device takes the interlock operation mode, when the emergency control device of one of the cars is activated, the emergency control device of the other car is activated.

  The present invention is characterized in that when the control device takes the linked operation mode, the deceleration during the control is adjusted based on the signal from the distance sensor and the signal from the load sensor of each car that takes the linked operation mode. This is an elevator system.

  As described above, according to the present invention, the transportation capacity when a large number of passengers are concentrated can be greatly improved without complicating the overall structure.

FIG. 1 is a diagram showing the overall structure of an elevator system according to the present invention. FIG. 2 is a diagram showing a control device for an elevator system according to the present invention.

  Embodiments of the present invention will be described below with reference to the drawings.

  1 and 2 are views showing an embodiment of an elevator system according to the present invention.

  1 and 2, an elevator system 10 includes a plurality of passenger cars 1a, 1b, 1c arranged in the same hoistway 10a, and the passenger cars 1a, 1b, 1c, which are independent of each other by a hoisting rope 11. Driving devices 2a, 2b, 2c to be driven, distance sensors 4A, 4B provided between a pair of adjacent cars, for example, the cars 1a, 1b, and measuring the distance between the pair of cars 1a, 1b; And a control device 5 that receives signals from the sensors 4A and 4B and controls the driving devices 2a, 2b, and 2c corresponding to the cars 1a, 1b, and 1c.

  Among these, each car 1a, 1b, 1c can move up and down along the guide rail 6 in the same hoistway 10a, and each car 1a, 1b, 1c has each car 1a, 1b. Drive devices 2a, 2b, and 2c are provided to raise and lower 1c independently of each other by the hoisting rope 11.

  The distance sensors 4A and 4B provided between the pair of cars 1a and 1b are composed of a light emitting part 4A and a light receiving part 4B, and the distance between the cars 1a and 1b by the light emitting part 4A and the light receiving part 4B. Can be measured.

  Furthermore, each car 1a, 1b, 1c is provided with load sensors 7a, 7b, 7c, and each car 1a, 1b, 1c is provided with emergency control devices 3a, 3b, 3c. Each of the cars 1a, 1b, 1c can be urgently stopped by the devices 3a, 3b, 3c in an emergency.

  Further, the control device 5 takes either an independent operation mode in which the plurality of cars 1a, 1b, 1c are operated independently from each other or an interlocked operation mode in which the plurality of cars 1a, 1b, 1c are operated in conjunction with each other. be able to.

  Next, the operation of the present embodiment having such a configuration will be described.

  First, the control device 5 determines the cars 1a, 1b, and 1c that operate in the independent operation mode or the linked operation mode according to the preset date and time and operation conditions.

  For example, the control device 5 determines the linked operation mode according to the date and time when mass transportation is scheduled in advance, or determines the linked operation mode based on the landing call information of the landing, and the linked operation mode thus determined. The cars to be operated, for example, the cars 1a, 1b, 1c can be determined.

  First, the operation control in the independent operation mode is described.

  At this time, the control device 5 operates the cars 1a, 1b, and 1c independently of each other based on the hall call information of the hall as usual.

  Next, as described above, for example, the control device 5 takes the linked operation mode in accordance with the date and time when mass transportation is scheduled. At this time, the control device 5 determines the cars 1a, 1b, and 1c operated in the linked operation mode. At this time, distances between the cars 1a, 1b, and 1c are measured by distance sensors 4A and 4B composed of the light emitting section 4A and the light receiving section 4B set in the cars 1a, 1b, and 1c, and the measured cars 1a are measured. The distance between 1b and 1c is input to the control device 5. At the same time, the loads measured by the load sensors 7a, 7b, 7c installed in the cars 1a, 1b, 1c are input to the control device 5.

  During this time, the control device 5 controls the operation while keeping the distance between the cars 1a, 1b, 1c constant.

  That is, the control device 5 drives the driving devices 2a, 2b, 2b, 2c installed in the cars 1a, 1b, 1c based on signals from the distance sensors 4A, 4B installed between the cars 1a, 1b, 1c. By driving and controlling 2c, operation control is performed while keeping the distance between the cars 1a, 1b and 1c constant. Specifically, the control device 5 obtains appropriate speeds and torques of the cars 1a, 1b, 1c so that the distances between the cars 1a, 1b, 1c are constant, and the speeds and torques thus obtained. On the basis of the driving control of the driving devices 2a, 2b, 2c of the cars 1a, 1b, 1c.

  Further, when the control device 5 is in the interlocked operation mode, when one of the cars, for example, the emergency control device 3a of the car 1a is activated, the control device 5 senses the operation of the emergency control device 3a, The emergency control devices 3b and 3c of the cars 1b and 1c are operated simultaneously. As a result, the emergency control devices 3a, 3b, 3c of all the cars 1a, 1b, 1c taking the linked operation mode can be operated to emergency stop the cars 1a, 1b, 1c.

  Furthermore, the control device 5 can also adjust the deceleration at the time of control based on signals from the load sensors 7a, 7b, 7c of the cars 1a, 1b, 1c when taking the interlock operation mode.

  As described above, according to the present embodiment, the control device 5 normally operates in the independent operation mode and can operate the cars 1a, 1b, and 1c independently of each other.

  In addition, the control device 5 keeps the distances between the cars 1a, 1b, and 1c constant by setting a linked operation mode according to the date and time when mass transportation is scheduled in advance or according to the landing call information of the landing. However, the operation can be controlled as if it were a double deck elevator. For this reason, mass transportation becomes possible, and the transportation efficiency of the whole elevator system can be increased.

  In this case, it is not necessary to connect the cars 1a, 1b, and 1c with a connecting mechanism in a complicated manner in order to link the cars 1a, 1b, and 1c. Since it is not necessary to install such a complicated coupling mechanism, the structure of the entire elevator system can be simplified.

  Further, since the control device 5 detects the operation of the emergency control device 3a of one of the cars 1a and operates the emergency control devices 3b and 3c of the other cars 1b and 1c simultaneously, all the cars 1a, 1b, The safety of the entire elevator system can be ensured by simultaneously stopping the emergency stop 1c.

DESCRIPTION OF SYMBOLS 1a, 1b, 1c Car 2a, 2b, 2c Drive device 3a, 3b, 3c Emergency control device 4A Light emission part 4B Light reception part 5 Control device 7a, 7b, 7c Load sensor 10 Elevator system 10a Hoistway

Claims (4)

Multiple cars arranged in the same hoistway,
A driving device for driving each car independently of each other;
A distance sensor provided between a pair of adjacent cars and measuring a distance between the pair of cars;
A signal from the distance sensor is input, and a control device that controls a driving device corresponding to each car is provided.
The control device takes either one of the independent operation mode in which a plurality of cars are operated independently from each other and the interlocked operation mode in which a plurality of cars are operated in conjunction with each other. An elevator system characterized in that the apparatus controls a driving device corresponding to each car based on a signal from a distance sensor to maintain a constant distance between the cars.   The control device determines a car that operates in the linked operation mode according to a preset date and time and operation conditions, and a driving device that corresponds to each car based on a signal from the distance sensor for the car that takes the linked operation mode. The elevator system according to claim 1, wherein the elevator system is controlled.   2. The elevator system according to claim 1, wherein when the controller operates in the interlock operation mode, the emergency control device of the other car is operated when the emergency control device of the other car is operated.   The control device adjusts a deceleration at the time of control based on a signal from a distance sensor and a signal from a load sensor of each car that takes the linked operation mode when the linked operation mode is taken. The elevator system according to 1.

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