JP4567347B2 - Elevator door control device - Google Patents

Description

  The present invention relates to an elevator door control device in which a smoke shielding device is provided at an elevator hall.

  The conventional smoke-proof door device for elevators includes a horizontal sliding door installed at the elevator landing, an entrance vertical frame installed on both sides with respect to the elevator car direction of the horizontal sliding door, and an entrance installed on the upper side. Frame, an entrance / exit frame composed of a sill installed on the lower side, and an expansion / contraction part that is disposed on the horizontal sliding door and elastically changes in contact with the entrance / exit frame immediately before the horizontal sliding door is closed, Some include a smoke shield that closes the gap between the lateral sliding door and the entrance / exit frame when the door is closed (see, for example, Patent Document 1).

JP-A-5-338975

  In the elevator hall smoke-shielding door device described in Patent Document 1, the smoke-changeable body arranged on the landing door (lateral sliding door) is provided with an elastic changeable smoke-shielding body immediately before the landing door is closed. When the landing door is closed, the gaps formed between the landing door and the entrance frame of the entrance / exit frame and the entrance upper frame and the sill are closed. Completely occluded by smoke. For this reason, even if a fire or the like occurs in the building where the elevator system is installed, the smoke is blocked from moving from the landing to the hoistway or from the hoistway to the landing, and the smoke passes through the hoistway. Can be prevented from diffusing. Further, this elevator hall smoke-proof door device does not slide between the smoke-shielding body and the entrance / exit frame when the gap is closed, and thus occurs when the smoke-shielding body slides or slides. It is also possible to prevent noise. However, conventional smoke shielding devices, including elevator hall smoke shielding door devices described in Patent Document 1, relate to landing doors or entrance fixed bodies such as entrance / exit frames in order to shut off the landing and the hoistway. As a result, the gap formed between the landing door and the landing stationary body is closed, so the door driving device that opens and closes the landing door and the car door is provided for opening and closing the landing door and the car door. In addition to this power, a power against a resistance force generated by the engagement of the smoke shielding device is also required. For this reason, the door drive device in the smoke-shielding device engaging section where the smoke-shielding device and the landing door or the landing-fixed body are engaged in the hall where the smoke-shielding device is installed and the hall where the smoke-shielding device is not installed Depending on the setting of the door drive device, there is a problem that excessive force acts on the landing door and the car door, or the landing door vibrates in the smoke shield device engaging section. It was. In particular, as in the smoke shielding device described in Patent Document 1, when the smoke shielding device engaging section is immediately before the door is closed until the door is closed, if the driving force of the door driving device is small, the landing door is completely closed. Therefore, there has been a problem that the smoke shielding device cannot sufficiently perform its function.

  The present invention has been made to solve the above-described problems, and its purpose is to smoothly and reliably open and close the landing door based on information on whether or not a smoke prevention device is installed. It is an object of the present invention to provide an elevator door control device capable of performing an operation.

The elevator door control device according to the present invention is provided in an elevator car, and is provided in a door motor for opening and closing the car door, and provided in a landing of the elevator, and interlocked with the opening and closing operation of the car door when the car stops at the landing. And a smoke shielding device that shuts off the elevator hoistway and the landing in a predetermined door closing end section of the landing door, and the smoke shielding device is installed in a landing on an arbitrary floor. In the door control device, the presence / absence of the smoke shielding device is detected for each floor, and the predetermined storage means stores information on the presence / absence of the smoke shielding device for each detected floor, and the storage means stores the information. Door control means for controlling the door motor according to the presence / absence of the smoke shielding device based on the information on the presence / absence of the smoke shielding device , and the detection means measures the torque of the door motor, and the measurement means By Based on a threshold that is previously stored in the measured value and the storage means the measured torque Te is obtained and a determination means for determining the presence or absence of Saegikemuri device.
The elevator door control device according to the present invention is provided in an elevator car, and is configured to open and close the car door when the car stops at a predetermined elevator landing when the car is stopped at a predetermined elevator landing. It is linked to the operation, and includes a connecting device that disconnects the landing door immediately before the closing of the landing door, and a smoke shielding device that shuts off the elevator hoistway and the landing in a predetermined door closing end section of the landing door. In the elevator door control device provided at a landing on any floor, the smoke shielding device stores storage means for storing information on the presence or absence of the smoke shielding device for each floor, and the smoke shielding stored in the storage device Door control means for controlling the door motor according to the presence / absence of the smoke shielding device based on the presence / absence of the device, and the door control means is provided in the door-closing terminal section at the hall where the smoke shielding device is provided. The motor speed of the door motor, and sets a larger value than the motor speed in the same section of the landings Saegikemuri device is not provided.

According to the present invention , the landing door can be opened and closed smoothly and reliably based on the information on whether or not the smoke shielding device is installed .

  FIG. 1 is a side view of an elevator door device according to the present invention, and FIG. 2 is a block diagram showing a configuration of an elevator door control device according to the present invention. The basic configuration and control of the door device according to the present invention will be described below with reference to FIGS.

  In FIG. 1, the elevator landing on each floor provided in the building where the elevator apparatus is installed includes a landing floor 1 a that forms the floor of the landing, and 2 erected on the landing floor 1 a. There is provided a landing frame 1 composed of two vertical columns 1b and a top plate 1c provided across the upper portion of the vertical columns 1b. The hall of each floor leads to the hoistway 2 through the hall entrance / exit formed by the hall frame 1, and on the hoistway 2 side of the hall frame 1 A landing door 3 is installed to prevent the vehicle from falling. Above the landing door 3, a roller 5 is rotatably provided via a door hanger 4 provided on the upper portion of the landing door 3. Rails 6 are horizontally installed on both sides of the landing frame body 1 on the upper wall surface of the landing frame body 1 of the hoistway 2, and the roller 5 is engaged with the upper surface of the rail 6, thereby lowering the roller 5. A landing door 3 provided in the room is suspended. Further, the landing floor portion 1a constituting the landing frame body 1 is provided so as to protrude toward the hoistway 2 from the vertical frame 1b, and the landing threshold is positioned below the landing door 3 of the landing floor portion 1a. 7 is installed. A groove is formed in the upper surface of the sill 7 in the same direction as the rail 6, and a guide portion 3 a provided so as to protrude downward at the lower part of the landing door 3 is guided by the groove.

  An elevator car 8 that is suspended by a main rope (not shown) and moves up and down in the hoistway 2 is provided with a car doorway 8a at a position opposite to the landing doorway of each floor when going up and down. A car door 9 is installed on the landing side 8a so as to face the landing door 3 installed at the landing on each floor. Above the car door 9, a roller 11 is rotatably provided via a door hanger 10 provided on the top of the car door 9. A rail 12 is horizontally installed on both sides of the car doorway 8a on the upper side surface of the car doorway 8a of the car 8, and the roller 11 is engaged with the upper surface of the rail 12 to be provided below the roller 11. A car door 9 is suspended. Above the rail 12, a motor pulley 13a is provided on one side of the rail 12, and another pulley (not shown) is provided on the other side, and an endless drive belt 14 is wound around the pulley and the motor pulley 13a. ing. The motor pulley 13a is provided on the rotating shaft of the door motor 13 provided on the upper side surface of the car entrance 8a of the car 8, and the drive belt 14 is interlocked with the motor pulley 13a that rotates when the door motor 13 operates. Moving. Further, the upper end portion of the door hanger 10 provided on the upper portion of the car door 9 is connected to a part of the drive belt 14, and the car door 9 moves in conjunction with the drive belt 14 via the door hanger 10. To do. A sill 15 of the car 8 is installed at a position below the car door 9 of the car floor 8b. A groove is formed on the upper surface of the sill 15 in the same direction as the rail 12, and a guide portion 9 a provided so as to protrude downward at the lower part of the car door 9 is guided by the groove.

  Further, a part of the coupling device 16 is provided on each of the facing surfaces of the landing door 3 and the car door 9. When the car 8 stops at a landing on a certain floor, the door motor 13 is activated and the car door 9 is opened through the drive belt 14. At this time, a part of the connecting device 16 provided in each of the car door 9 and the landing door 3 is mechanically engaged with each other when the car door 9 moves in the horizontal direction, so that the landing door 3 is It moves in the horizontal direction in conjunction with the door 9. When the opening and closing operations of the landing door 3 and the car door 9 are completed and the door closing is completed, a part of the connecting device 16 provided to each of them is separated so as not to interfere with each other when the car 8 moves in the vertical direction. It becomes a state. As described above, the landing door 3 and the car door 9 are driven by the door motor 13 provided in the car 8, and the door motor 13 is controlled by the door control device 17 installed on the upper part of the car 8.

  In FIG. 2, the door control device 17 includes a door control circuit 18, a gate signal generation circuit 19, and a power circuit 20. Among these, the door control circuit 18 is a control circuit that takes in an external input signal from an operation panel or the like installed in the car 8 and controls the opening / closing of the car door 9 based on these signals. The door control circuit 18 includes a CPU 18a that controls the door motor 13 based on an external input signal, a ROM 18b that stores various data such as a speed command of the door motor 13 and a torque limiter value described later, processing data, input data, and the like. A PWM signal is sent to the gate signal generation circuit 19 and a RAM 18c for storing various data, an input / output port 18d, a pulse counter unit 18e for counting the number of output pulses from the pulse encoder 21 and detecting the rotation speed of the door motor 13. An output PWM unit 18f is provided. The gate signal generation circuit 19 outputs a gate signal to the power circuit 20 based on the PWM signal input from the PWM unit 18 f in the door control circuit 18. The door motor 13 to which electric power is supplied from the power source 22 is subjected to PWM control by the power circuit 20 to which the gate signal is input from the gate signal generation circuit 19. Various information and signals related to the landing door 3 and the car door 9 are output from the door control device 17 to the control panel 23 for controlling the elevator device, and if necessary, a maintenance display installed in a monitoring room or the like. The contents are displayed on the device 24. The maintenance staff can grasp the state related to the door of the elevator by confirming the contents displayed on the display device 24.

  Although not shown in the drawings, a gap formed between the landing door 3 and the landing fixed body such as the landing frame 1 is closed when the landing door 3 is completely closed. In the hall of the floor where such a smoke shield is installed, the hoistway 2 and the hall are completely blocked when the landing door 3 is completely closed. It has a structure. In the present invention, since it is possible to deal with various smoke shielding devices, it is not necessary to particularly limit the configuration of the smoke shielding device, the smoke shielding method, or the like, but in the following embodiment, Patent Document 1 The smoke-shielding device engaging section where the smoke-shielding device and the landing door 3 or the landing stationary body are engaged is set in the door closing terminal section from just before the door closing to the door closing completion as described in I will explain things.

Embodiment 1 FIG.
FIG. 3 is a diagram for explaining the elevator door control device according to Embodiment 1 of the present invention, and an example of the presence or absence of a smoke shielding device for each floor of a building where the elevator device is installed. It is shown. In the case of the building shown in FIG. 3, a smoke shielding device is installed at the elevator halls on the first to fourth floors, and no smoke shielding device is installed at the halls above the fifth floor. Information about the presence or absence of a smoke shielding device for each floor is registered in advance in a storage means such as a ROM 18b provided in the door control device 17. When the car 8 is landed on the fourth floor where the smoke shield device is installed, the landing door 3 and the car door are based on the information that “the smoke shield device is present” stored in the storage means in the door control device 17. 9 open / close control is performed. That is, the motor speed, torque limiter value, and the like of the door motor 13 are set by door control means including the door control device 17 and the door motor 13, and the opening / closing control of the landing door 3 and the car door 9 is performed. On the other hand, when the car 8 is landed on the fifth floor where the smoke shielding device is not installed, the car door 9 and the landing door are based on the information “no smoke shielding device” stored in the storage means. 3 is controlled by the door control means. As described above, the door control unit 3 opens and closes the landing door 3 and the car door 9 based on the information on the presence / absence of a smoke shielding device for each floor where the car 8 stops. .

  According to the first embodiment of the present invention, the information about the presence or absence of the smoke shielding device for each floor is registered in advance in the storage means provided in the door control device 17, and is stored in this storage means. Since the door control means controls the opening and closing of the landing door 3 and the car door 9 based on the information on the presence or absence of the smoke shielding device for each floor, the optimal landing according to the landing where the car 8 is landing Opening / closing control of the door 3 and the car door 9 can be performed. Therefore, for example, by changing the setting of the door control means only in the smoke-shielding device engaging section where the smoke-shielding device and the landing door 3 or the landing stationary body are engaged, The landing door 3 can be opened and closed smoothly and surely at the landings that are not.

Embodiment 2. FIG.
FIG. 4 is a diagram for explaining an elevator door control apparatus according to Embodiment 2 of the present invention. In the figure, a solid line 41 indicates a torque waveform acting on the door motor 13 when the landing door 3 and the car door 9 are opened and closed at the landing where the smoke shielding device is installed, and a broken line 42 indicates the smoke shielding device. The torque waveform which acts on the door motor 13 of the area corresponding to a smoke-shielding device engagement area in case the opening / closing operation | movement of the landing door 3 and the car door 9 is performed in the landing which is not installed is shown. When the door control means closes the landing door 3 and the car door 9 from the fully opened state, until the smoke shielding device engages with the landing fixed body such as the landing frame 1 or the landing door 3 from the door closing start. There is no difference in the torque acting on the door motor 13 regardless of whether or not the smoke shielding device is installed. However, in the smoke shield device engaging section, the torque acting on the door motor 13 varies depending on whether or not the smoke shield device is installed. That is, in the hall where the smoke shield device is installed, the door motor 13 is provided with the smoke shield device because of the resistance generated by the engagement of the smoke shield device with the hall door 3 or the hall fixing body. In addition to the torque necessary for closing the landing door 3 and the car door 9 when there is no torque, a torque is required to overcome the resistance force due to this engagement. For this reason, the torque of the door motor 13 in the smoke-shielding device engaging section in the hall where the smoke-shielding device is installed has a larger value than when the smoke-shielding device is not installed. Accordingly, the threshold value of the torque of the door motor 13 in the smoke shield device engaging section is registered in advance in a storage means such as the ROM 18b provided in the door control device 17 so that the landing door 3 and the car door 9 can be opened and closed. Based on the measured torque value in the smoke shield device engagement section of the door motor 13 and the torque threshold value stored in advance in the storage means, a determination is made as to whether or not the smoke shield device is installed.

  When the elevator car 8 is landed on the landing, the door motor 13 is activated to open and close the landing door 3 and the car door 9. When the landing door 3 and the car door 9 are opened and closed, the torque of the door motor 13 is measured by the measuring means, and the maximum value of the torque of the door motor 13 in the smoke shield device engaging section measured by the measuring means is the door control device. 17 is stored in the RAM 18c included in the unit 17. Further, in the storage means such as the ROM 18b provided in the door control device 17, a torque threshold value of the door motor 13 in the smoke shield device engaging section is registered in advance. The judging means such as the CPU 18a provided in the door control device 17 compares the maximum torque value measured by the measuring means with the torque threshold value stored in advance in the storage means, and the car 8 stops. Judgment is made on whether or not a smoke shielding device is installed at the boarding place. That is, when the maximum value of the torque measured by the detection means is smaller than the torque threshold value, it is judged by the determination means that no smoke shielding device is installed at the landing, and when the torque value is larger than the torque threshold value. It is judged that a smoke shielding device is installed at the landing. Information on the presence / absence of the smoke shielding device for each floor detected by the detection means constituted by the measurement means and the determination means is stored in the storage means, and when the car 8 reaches the landing again, Based on the information on the presence / absence of the smoke shielding device for the floor stored in the storage means, the door control means opens and closes the landing door 3 and the car door 9 according to the landing place as in the first embodiment. Control is performed.

  According to the second embodiment of the present invention, the maximum value of the torque in the smoke shield device engaging section of the door motor 13 measured by the measuring means during the opening / closing operation of the landing door 3 and the car door 9 is stored in the storage means in advance. The stored threshold value of torque is compared by the determination means provided in the door control device 17 so that it is possible to determine whether a smoke shielding device is installed for each floor. It is possible to set the presence or absence of a smoke shielding device for each floor. Therefore, even when the installation floor of the smoke shielding device is changed before the installation of the elevator apparatus, it is not necessary to change the information stored in the storage device and the workability is excellent. In addition, when the storage device stores the presence / absence of the installation of the smoke shielding device for each floor determined by the judging means, and when landing again on the same floor, the installation of the smoke shielding device stored in the storage device Since the opening / closing control of the landing door 3 and the car door 9 can be performed based on the presence / absence information, the opening / closing operation of the landing door 3 can be performed smoothly and reliably as in the first embodiment. It becomes. In the second embodiment, since the smoke shielding device engaging section is the door closing end section from immediately before the door closing to the door closing completion, the torque of the door motor 13 in the door closing end section is measured. When the smoke shield device engaging section is different, the torque may be measured in accordance with the smoke shield device engaging section. In addition, it is possible to determine the presence or absence of a smoke shielding device based not only on the maximum value of torque but also on the shape and inclination of the torque waveform.

Embodiment 3 FIG.
FIG. 5 is a diagram for explaining an elevator door control apparatus according to Embodiment 3 of the present invention. In the figure, a solid line 51 indicates a torque waveform acting on the door motor 13 when the landing door 3 and the car door 9 are opened and closed at the landing where the smoke shielding device is installed, and a broken line 52 indicates that the smoke shielding device is installed. The torque waveform which acts on the door motor 13 of the area corresponding to a smoke-shielding device engagement area in case the opening / closing operation | movement of the landing door 3 and the car door 9 is performed in the landing which is not done is shown. A solid line 53 shows a torque limiter waveform of the door motor 13 when the landing door 3 and the car door 9 are opened and closed at the landing where the smoke shielding device is installed, and a broken line 54 shows the smoke shielding device installed. The torque limiter waveform of the door motor 13 in the vicinity of the section corresponding to the smoke shield device engaging section when the landing door 3 and the car door 9 are opened and closed at the landing that is not present is shown. The torque limiter of the door motor 13 is set to a value larger than the torque required for the opening / closing operation of the landing door 3 and the car door 9 to prevent insufficient torque of the door motor 13 during the opening / closing operation of the landing door 3 and the car door 9. Has been. However, when an elevator passenger is sandwiched between the landing door 3 and the car door 9, the torque required for opening and closing the landing door 3 and the car door 9 is prevented so that an excessive load is not applied to the passenger. It cannot be extremely large. Therefore, by setting the torque required for opening / closing the landing door 3 and the car door 9 within a certain range, a smooth and safe opening / closing operation is possible. Further, in a hall where a smoke shielding device is installed, a resistance force is generated by the engagement of the smoke shielding device and a hall fixing body such as the hall door 3 or the hall frame 1, so that the smoke shielding force is generated. In the device engagement section, a value different from the torque limiter at the landing where no smoke shielding device is installed is set. That is, in the smoke shield device engaging section, the torque limiter at the hall where the smoke shield device is installed is set to a larger value than the torque limiter at the hall where the smoke shield device is not installed.

  Next, the control of the door control device 17 when the setting of the torque limiter of the door motor 13 differs depending on the presence or absence of the smoke shielding device will be described based on the flowchart of FIG. When the elevator car 8 arrives at the landing, the floor of the landing where the car 8 has stopped is determined by the control panel 23 installed in the elevator hoistway 2 or the like (step S601), and the car 8 stops. The floor information is output to the door control device 17 provided in the car 8. When the information on the floor where the car 8 is stopped is input from the control panel 23, the smoke prevention device for the stopped floor is based on the information on the presence or absence of the smoke prevention device for each floor registered in the storage means in advance. Is determined by the door control device 17 (step S602). Here, when it is determined that no smoke shielding device is installed on the stopped floor, the door motor 13 and the car are set by the door motor 13 in a state where the torque limiter of the normal door motor 13 without the shielding device is installed. The door 9 is opened and closed. In addition, when it is determined that a smoke shield device is installed on the stopped floor, information that “the smoke shield device is present” is stored in the RAM 18c (step S603), and the shield device is installed. The setting is changed to the torque limiter of the door motor 13 (step S604). Thereafter, the door motor 13 opens and closes the landing door 3 and the car door 9 in the changed torque limiter setting state.

  According to the third embodiment of the present invention, since the setting of the torque limiter of the door motor 13 is changed depending on the presence or absence of the floor shielding device where the elevator car 8 stops, the torque limiter suitable for each floor to be stopped is used. The landing door 3 and the car door 9 can be opened and closed. That is, since a different torque limiter is set in the smoke-shielding device engaging section between the hall where the smoke-shielding device is installed and the hall where the smoke-shielding device is not installed, the landing door 3 and the car door 9 are caused by insufficient torque of the door motor 13. No vibration is generated, and no gap is formed when the landing door 3 is completely closed. Even when the passenger is caught between the landing door 3 and the car door 9, there is no fear that an excessive load acts on the passenger due to excessive torque of the door motor 13, and the landing door 3 and the car door 9 can be opened and closed smoothly and safely. Can be done. In addition, when the smoke shield device engagement section is not in the door closing end section immediately before the door closing completion, the torque limiter may be set according to the smoke shield device engagement section, and it corresponds to various smoke shield devices. Is possible. Further, when the presence or absence of the smoke shielding device is not registered in the storage device in advance, the same effect can be obtained even if the presence or absence of the smoke shielding device is detected after installation of the elevator device as in the second embodiment. It is possible.

Embodiment 4 FIG.
FIG. 7 is a diagram for explaining an elevator door control apparatus according to Embodiment 4 of the present invention. In the figure, the solid line 71 indicates the motor speed of the door motor 13 when the landing door 3 and the car door 9 are opened and closed at the landing where the smoke shielding device is installed, and the broken line 72 indicates that the smoke shielding device is installed. The motor speed of the door motor 13 in the vicinity of the section corresponding to the smoke shield device engaging section when the landing door 3 and the car door 9 are opened and closed at the landing that is not performed is shown. The motor speed of the door motor 13 is set so that the motor speed decreases in the door closing end section from immediately before the door closing is completed to the door closing completion in order to suppress a collision sound generated when the landing door 3 and the car door 9 are closed. Is set. Further, the landing door 3 is engaged with the car door 9 by the connecting device 16 when the door is opened and closed, and moves in conjunction with the landing door 3. However, if the connecting device 16 remains engaged, it becomes an obstacle when the car 8 is raised and lowered. The disconnection of the connecting device 16 is completed before the car 8 starts moving up and down. Here, when the disconnection of the connecting device 16 is performed immediately before the door closing is completed, power from the door motor 13 is not transmitted to the landing door 3 between the disconnection of the connecting device 16 and the completion of the door closing. Therefore, in a hall where a smoke shielding device is installed in the door closing terminal section, the landing door 3 is not completely closed by the resistance force due to the engagement between the smoke shielding device and the hall fixing body, and a slight gap is generated when the door is closed. Therefore, the motor speed of the door motor 13 in the door closing end section is set to a value larger than the motor speed at the landing where no smoke shielding device is installed.

  Note that the control of the door control device 17 when the motor speed setting in the door closing end section of the door motor 13 differs depending on the presence or absence of the smoke shielding device is the same as the flowchart shown in FIG. Here, when the smoke shield device is installed on the stopped floor, the information that “the smoke shield device is present” is stored in the RAM 18c (step S603), and the shield device is installed by the door control device 17. In this case, the setting is changed to the motor speed of the door motor 13 (step S604). Thereafter, the door motor 13 opens and closes the landing door 3 and the car door 9 with the changed motor speed setting.

  According to the fourth embodiment of the present invention, the setting of the motor speed of the door motor 13 is changed depending on the presence / absence of the shielding device for the floor where the elevator car 8 stops. Therefore, the smoke shielding device is installed in the door closing end section. Even when the landing door 3 is closed, it is possible to prevent a problem that a slight gap is formed when the landing of the landing door 3 is completed. It should be noted that, as in the second embodiment, it is naturally possible to deal with an elevator apparatus that detects the presence or absence of a smoke shielding apparatus after the elevator apparatus is installed.

Embodiment 5 FIG.
FIG. 8 is a diagram for explaining an elevator door control apparatus according to Embodiment 5 of the present invention. In the figure, a solid line 81 indicates a torque waveform acting on the door motor 13 when the landing door 3 and the car door 9 are opened and closed at the landing where the smoke shielding device is installed. As described above, in the hall where the smoke shield device is installed, the torque of the door motor 13 in the smoke shield device engaging section is smoke-proof because of the resistance generated by the engagement of the smoke shield device and the landing fixture. The value is larger than the torque of the door motor 13 in the section corresponding to the smoke-shielding device engagement section of the hall where no device is installed. However, when a failure such as failure or deterioration over time occurs in the smoke shield device, it becomes impossible to close the gap formed between the landing door 3 and the landing fixture, or the sliding portion of the smoke shield device In the case where the wearer no longer functions as a smoke shield device, the torque value of the door motor 13 in the smoke shield device engaging section decreases. Therefore, the threshold value of the torque of the door motor 13 in the smoke shield device engaging section is registered in advance in a storage means such as the ROM 18b provided in the door control device 17 so that the landing door 3 and the car door 9 can be opened and closed. The state of the smoke shield device is detected based on the measured torque value in the smoke shield device engagement section of the door motor 13 and the torque threshold value stored in advance. Then, when it is determined that the smoke shield device is not functioning normally, the state of the detected smoke shield device is notified to the outside such as maintenance personnel.

  Below, the control when the door control device 17 determines whether or not the smoke shielding device is functioning normally will be described based on the flowchart of FIG. 9. When the elevator car 8 reaches the landing, the floor of the landing where the car 8 has stopped is judged by the control panel 23 installed in the elevator hoistway 2 or the like (step S901), and the floor where the car 8 has stopped. The floor information is output to the door control device 17 provided in the car 8. When the information on the floor where the car 8 is stopped is input from the control panel 23, the smoke prevention device for the stopped floor is based on the information on the presence or absence of the smoke prevention device for each floor registered in the storage means in advance. Is determined by the door control device 17 (step S902). When no smoke shielding device is installed on the stopped floor, the opening / closing operation of the landing door 3 and the car door 9 is performed in the normal setting of the door motor 13 without the shielding device, and the opening / closing operation ends. . On the other hand, when a smoke shield device is installed on the stopped floor, the opening / closing operation of the landing door 3 and the car door 9 is performed based on the setting of the door motor 13 when the smoke shield device is installed. The torque of the door motor 13 during the opening / closing operation is measured by the measuring means. The maximum value of the torque of the door motor 13 in the smoke shield device engaging section measured by this measuring means is stored in the RAM 18c provided in the door control means 17. Further, in the storage means provided in the door control device 17, the threshold value of the torque of the door motor 13 in the smoke shielding device engaging section at the landing where the smoke shielding device is installed is registered in advance. The determination means such as the CPU 18a provided is compared with the maximum torque value measured by the measurement means and the torque threshold value stored in advance in the storage means (step S903), and the state of the smoke shield device Is judged. That is, when the maximum value of the torque measured by the detecting means is larger than the threshold value of the torque, it is determined by the determining means that the smoke shield device is functioning normally, and when it is smaller than the threshold value of the torque, It is determined that the smoke shield is not functioning properly due to aging or wear. When it is determined by the detection means composed of the measurement means and the determination means that the smoke shielding device is not functioning normally, information to that effect is output to the control panel 23 and the control panel 23 blocks the smoke shielding device. Information necessary for the maintenance of the smoke shield device, such as malfunction of the smoke device or replacement time, is displayed on the maintenance display device 24 (step 904).

  According to Embodiment 5 of the present invention, the maximum torque of the door motor 13 in the smoke shield device engaging section measured by the measuring means when the landing door 3 and the car door 9 are opened and closed at the landing where the smoke shield device is installed. The value is compared with the torque threshold value stored in advance in the storage means to determine whether or not the smoke shield is functioning normally, and the smoke shield is in the maintenance display device 24. Therefore, it is possible to prevent functional deterioration such as aging deterioration and wear state of the smoke shielding device. That is, by checking the display content of the display device 24, for example, in the case of a smoke shielding device engaged by sliding, the maintenance staff can grasp the progress of wear due to sliding, and the elastic body In the case of a smoke shielding device that engages with a landing fixed body or the like, it is possible to grasp that the elastic body is not functioning normally due to loosening of a bolt or the like.

It is a side view of the door apparatus of the elevator in this invention. It is a block diagram which shows the structure of the control apparatus of the door of the elevator in this invention. It is a figure for demonstrating the control apparatus of the door of the elevator in Embodiment 1 of this invention. It is a figure for demonstrating the control apparatus of the door of the elevator in Embodiment 2 of this invention. It is a figure for demonstrating the control apparatus of the door of the elevator in Embodiment 3 of this invention. It is a flowchart which shows control of the door of the elevator in Embodiment 3 of this invention. It is a figure for demonstrating the control apparatus of the door of the elevator in Embodiment 4 of this invention. It is a figure for demonstrating the control apparatus of the elevator door in Embodiment 5 of this invention. It is a flowchart which shows control of the door of the elevator in Embodiment 5 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Platform frame 1a Platform floor 1b Vertical column 1c Top plate 2 Hoistway 3 Platform door 3a, 9a Guide part 4, 10 Door hanger 5, 11 Roller 6, 12 Rail 7, 15 Sill 8 Car 8a Car entrance 8b Car floor 9 Car door 13 Door motor 13a Motor pulley 14 Drive belt 16 Coupling device 17 Door control device 18 Door control circuit 18a CPU
18b ROM
18c RAM
18d I / O port 18e Pulse counter unit 18f PWM unit 19 Gate signal generation circuit 20 Power circuit 21 Pulse encoder 22 Power supply 23 Control panel 24 Display device

Claims (6)

A door motor provided in the elevator car for opening and closing the car door;
A landing door provided at an elevator landing and interlocked with an opening / closing operation of the car door when the car stops at the landing;
In a predetermined door closing end section of the landing door, a smoke shielding device that blocks an elevator hoistway and the landing;
In the control device for an elevator door provided at the landing on any floor,
Detecting means for detecting the presence or absence of the smoke shielding device for each floor, and storing the information on the presence or absence of the smoke shielding device for each detected floor in a predetermined storage means;
Door control means for controlling the door motor according to the presence or absence of the smoke shielding device based on the information on the presence or absence of the smoke shielding device stored in the storage means ;
The detection means includes
Measuring means for measuring the torque of the door motor;
Determining means for determining the presence or absence of the smoke shielding device based on a measured value of torque measured by the measuring means and a threshold value stored in advance in the storage means;
Control device for a door of an elevator, characterized in that it comprises a. The door control means is configured such that, at the landing provided with the smoke shielding device, the door motor torque in the door closing end section is larger than the torque in the same section of the landing where the smoke shielding device is not provided. The elevator door control device according to claim 1 , wherein The door control means is configured such that, in the hall where the smoke shield device is provided, the door motor torque limiter in the door closing end section is more than the torque limiter in the same section of the hall where the smoke shield device is not provided. 3. The elevator door control device according to claim 2 , wherein the control device is set to a large value. A state of detecting the state of the smoke shield device when it is determined that the smoke shield device is installed at the landing place based on the information on the presence or absence of the smoke shield device stored in the storage means Detection means;
The elevator according to claim 1, further comprising a display device that displays information necessary for maintenance of the smoke shield device based on the state of the smoke shield device detected by the state detection means. Door control device. The state detection means includes
Measuring means for measuring the torque of the door motor;
To claim 4, characterized in that a state determining means for determining the state of the measurement value of the torque measured by the measuring means and on the basis of the thresholds stored in advance in the storage means the Saegikemuri device The elevator door control device described. A door motor provided in the elevator car for opening and closing the car door;
When the car stops at a predetermined elevator hall, the landing door of the hall is interlocked with the opening and closing operation of the car door, and the disconnection device is performed immediately before the completion of the door closing of the hall door; and
In a predetermined door closing end section of the landing door, a smoke shielding device that blocks an elevator hoistway and the landing;
In the control device for an elevator door provided at the landing on any floor,
Storage means for storing information on the presence or absence of the smoke shielding device for each floor;
Door control means for controlling the door motor according to the presence / absence of the smoke shielding device based on the information on the presence / absence of the smoke shielding device stored in the storage means;
With
The door control means is configured such that, in the hall where the smoke shielding device is provided, the motor speed of the door motor in the door closing end section is higher than the motor speed in the same section of the hall where the smoke shielding device is not provided. A control device for an elevator door, which is set to a large value.

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