JP5496248B2 - Double deck elevator system - Google Patents

Description

  Embodiments of the present invention relate to a double deck elevator system that prevents floor-to-floor variation between an upper car and a lower car.

  2. Description of the Related Art As a double deck elevator system in which an upper car and a lower car are connected and moved up and down, one having a floor adjustment function is known.

  This double deck elevator system has a function to adjust the distance between the upper car and the lower car mounted on the car frame of the double deck type car mechanism according to the floor space of the landing floor, When traveling toward the floor specified by a call from the operation panel in the car or the operation panel in the lower car, the space between the upper and lower cars is adjusted to the target floor by the floor adjustment function. To land.

JP 2011-20788 A

  By the way, in such a conventional double deck elevator system with an inter-floor adjustment function, when a problem occurs in the inter-floor adjustment device, the upper car or the lower car may move. For this reason, conventionally, when a malfunction of the floor adjustment device is detected, the brake is operated to stop the movement of the upper car or the lower car.

  However, if the landing level area is exceeded when the door is open, it is determined that a problem has occurred in the floor adjustment device, and the brake of the floor adjustment device is operated. There was a risk that the distance between the upper cage and the lower cage would fluctuate.

The embodiment of the present invention prevents the brake drive circuit, motor drive circuit, etc. of the floor adjustment device from malfunctioning when the double deck type car mechanism is landing, It aims at providing the double deck elevator system which can hold | maintain a space | interval to a constant value.

In order to achieve the above object, an embodiment of the present invention generates an inter-level adjustment brake release voltage and supplies it to the inter-level adjustment brake to form an interval between an upper car and a lower car constituting a double deck type car mechanism. A brake drive circuit that adjusts the motor, a motor drive circuit that generates a floor adjustment motor drive voltage and supplies it to the floor adjustment motor, and adjusts an interval between the upper car and the lower car, and the double deck type ride While the car mechanism is stopped and the door is opened, the power supply to the brake drive circuit is cut off, and the floor adjustment brake power switching circuit for prohibiting generation of the floor adjustment brake release voltage, and the double deck type riding while the car mechanism is door open to stop, to interrupt the power supply of the motor drive circuit, and interfloor adjustment motor power-off circuit for inhibiting the generation of the floor between the adjusting motor drive voltage, the brake driving circuit及When power is supplied to both of the motor drive circuit, the door opening operation of the double deck type car mechanism is prohibited, and the power of both the brake drive circuit and the motor drive circuit is shut off, And a door opening / closing circuit that permits a door opening operation of the double deck type car mechanism .

The block diagram which shows 1st Embodiment of a double deck elevator system. The block diagram which shows the circuit structural example of the double deck elevator system shown in FIG. The circuit diagram which shows the detailed structural example of the door opening command generation part provided in the door opening / closing control circuit shown in FIG. The circuit diagram which shows the detailed structural example of the floor adjustment motor operation command provided in the floor adjustment control circuit shown in FIG. 2, and the floor adjustment brake operation command generation part. The timing chart which shows the operation example of the double deck elevator system shown in FIG. The timing chart which shows the operation example of the double deck elevator system shown in FIG.

<< First Embodiment >>
FIG. 1 is a configuration diagram illustrating a double deck elevator system according to a first embodiment.

  A double deck elevator system 1 shown in this figure has landing door mechanisms 2a to 2n provided for each floor in a building, an upper car 3 and a lower car 4, and is movable up and down in an elevator shaft formed in the building. A double-deck type car mechanism 5 is provided, and an elevating mechanism 6 that raises and lowers the double-deck type car mechanism 5 by generating a driving force. The double-deck elevator system 1 is also arranged in the upper part of the elevator shaft, and in-car operation panel 8 provided in the upper car 3 of the hall call buttons 7a to 7n provided in each hall and the double-deck type car mechanism 5. Elevator control for controlling the operation of the elevating mechanism 6, the landing door mechanisms 2a to 2n, the double deck type car mechanism 5 and the like in response to a call signal output from the in-car operation panel 9 provided in the lower car 4. A device 10 and a floor adjustment device 11 that adjusts the distance between the upper car 3 and the lower car 4 are provided.

  Each landing door mechanism 2a to 2n is in an open state when the hold door 12 is open, as shown in the circuit diagram of FIG. And a door close detection switch 13 that is closed when the door is closed.

  The double deck type car mechanism 5 includes a car frame 15 to which the upper car 3 and the lower car 4 are attached, a plurality of screw rods 16 for adjusting the floor, and a plurality of floors for rotationally driving each screw rod 16. An adjustment motor 17, an upper car door control mechanism 18, and an upper car door close detection switch 19 are provided. The upper car door control mechanism 18 is disposed at the upper part of the upper car 3 and opens the upper car door 20 when the door opening command DOP (U (upper)) is supplied, and at other times the upper car door 20. Close. The upper car door close detection switch 19 is disposed at the upper part of the upper car 3 and is in an open state when the upper car door 20 is open, and is closed when the upper car door 20 is closed.

Further, the double deck type car mechanism 5 includes a lower car door control mechanism 21, a lower car door closing detection switch 22, a plurality of floor adjustment brakes 23, and a floor adjustment brake switch 24. The lower car door control mechanism 21 is disposed at the upper part of the lower car 4 and opens the lower car door 25 when the door opening command DOP (L) is supplied, and closes the lower car door 25 at other times. The lower car door close detection switch 22 is disposed at the upper part of the lower car 4 and is in an open state when the lower car door 25 is open, and is in a closed state when it is closed. Each floor adjustment brake 23 is attached to each floor adjustment motor 17 or the like, and applies a brake to the brake drum or the like of each floor adjustment motor 17 when the floor adjustment brake release voltage is not supplied. The floor adjustment brake switch 24 detects when each floor adjustment brake 23 is released, and outputs a floor adjustment brake operation signal BAS to the floor adjustment device 11. The elevating mechanism 6 is provided on the wall in the elevator shaft. A counterweight 30 that is attached to a plurality of guide rails that can be moved up and down, a main rope 31 that connects the double deck type car mechanism 5 and the counterweight 30, and an upper portion of the elevator shaft. A hoisting machine 32 that lifts and lowers the double-deck type car mechanism 5 and the counterweight 30 in a slidable manner, and a brake mechanism 33 that restricts rotation of the brake drum of the hoisting machine 32 and applies a brake. .

  As shown in FIG. 2, the elevator control apparatus 10 includes an elevator control circuit 34 and a door opening / closing control circuit 40.

  When the floor adjustment motor abnormality detection signal MES, the floor adjustment brake abnormality detection signal BES, or the like is not output from the floor adjustment device 11, the elevator control circuit 34, the hall call buttons 7 a to 7 n and the car in the upper car 3. A brake release voltage and a lift drive voltage are generated in response to a call signal output from the inner operation panel 8 or the in-car operation panel 9 in the lower car 4, and the brake mechanism 33 and the hoisting machine 32 are driven and controlled. Further, the floor adjustment start command KRUN1 is generated and supplied to the floor adjustment device 11, and control for adjusting the interval between the upper car 3 and the lower car 4 is executed. Further, when the double deck type car mechanism 5 is raised and lowered to land on the target floor, when the landing call button on the floor on which the double deck type car mechanism 5 is landing is operated, the double deck type car When the open button of the in-car operation panel 8 in the upper car 3 is operated while the mechanism 5 is landing on any floor, or the open button of the in-car operation panel 9 in the lower car 4 is When operated, an automatic door opening command (DOPA) or (DOPB) is generated. Furthermore, when the floor adjustment brake abnormality detection signal BES, the floor adjustment motor abnormality detection signal MES, or the like is supplied from the floor adjustment device 11, a process of stopping the operation of the double deck type car mechanism 5 is executed.

  As shown in FIG. 3, the door opening / closing control circuit 40 of the elevator control apparatus 10 includes a floor adjustment motor power-on command detection contact 35, a floor adjustment brake power-on detection contact 36, and two automatic door opening command detection contacts. 37 and 38, and a door opening command relay 39.

  The floor adjustment motor power on command detection contact 35 is opened when the floor adjustment motor power on command KMMC (ANS) is output from the floor adjustment device 11. The floor adjustment brake power-on detection contact 36 is opened when the floor adjustment brake power-on instruction KBMC (ANS) is output from the floor adjustment device 11. The two automatic door opening command detection contacts 37 and 38 are closed when automatic door opening commands (DOPA) and (DOPB) are output from the elevator control circuit 34. The door opening command relay 39 is energized when the floor adjustment motor power-on command detection contact 35, the floor adjustment brake power-on detection contact 36, and the automatic door opening command detection contacts 37, 38 are all closed. The door opening command DOP (U (upper)) and the door opening command DOP (D (lower)) are generated.

  Further, as shown in FIG. 2, the floor adjustment device 11 includes a floor adjustment monitoring circuit 41, a door closing detection circuit 42, a floor adjustment control circuit 43, a power circuit 44, and a floor adjustment brake power cutoff. Circuit 45, floor adjustment brake power switching circuit 46, brake drive circuit 47, floor adjustment motor power cutoff circuit 48, floor adjustment motor power switching circuit 49, motor drive circuit 50, floor adjustment motor And a current detection circuit 51.

  In the state where the floor adjustment brake power supply command KBC is output from the floor adjustment control circuit 43, the floor adjustment monitoring circuit 41 causes each floor adjustment brake 23 to be turned on from each floor adjustment brake switch 24, for example, for 1 second or longer. When the floor adjustment brake operation signal BAS indicating release is not output or when the floor adjustment motor power-on command KMMC is output from the floor adjustment control circuit 43, for example, each floor When the floor adjustment motor current detection circuit 51 does not output the floor adjustment motor current detection signal MIS, some abnormality occurs in the brake drive circuit 47, each floor adjustment brake 23, the motor drive circuit 50, each floor adjustment motor 17, etc. The brake power cut-off command KBCC is generated by determining that it has been supplied and supplied to the inter-story adjustment brake power cut-off circuit 45 Generates a motor power cut-off command KMCC, supplies the interfloor adjustment motor power cutoff circuit 48. Further, the floor adjustment brake abnormality detection signal BES and the floor adjustment motor abnormality detection signal MES are generated and supplied to the elevator control circuit 34 to stop the operation of the elevator.

  The door close detection circuit 42 includes an all door close detection relay 52. The all door close detection relay 52 is connected in series with the door close detection switch 13 of each of the landing door mechanisms 2a to 2n, the upper car door close detection switch 19 of the upper car 3, and the lower car door close detection switch 22 of the lower car 4. It is connected. Then, when the hold door 12, the upper car door 20, and the lower car door 25 provided in each landing door mechanism 2a to 2n are all closed and the relay drive voltage is supplied, the all door close detection relay 52 is excited. The door closing detection signal DCL is generated and supplied to the floor adjustment control circuit 43.

  As shown in FIG. 4, the floor adjustment control circuit 43 includes a door closing detection contact 53, a floor adjustment start command contact 54, a floor adjustment motor power-on relay 55, and a floor adjustment motor power-on detection contact 56. And a floor adjustment start command contact 57 and a floor adjustment motor operation command relay 58.

  The door close detection contact 53 is closed when the door close detection signal DCL is output from the door close detection circuit 42. The floor adjustment start command contact 54 is closed when the floor control start command KRUN1 is output from the elevator control device 10. The floor adjustment motor power-on relay 55 is energized when the door closing detection contact 53 and the floor adjustment start command contact 54 are in the closed state, and the floor adjustment motor power-on command KMMC, floor adjustment motor power is supplied. The input command KMMC (ANS) is output. The floor adjustment motor power on detection contact 56 is closed when the floor adjustment motor power on relay 55 outputs a floor adjustment motor power on command KMMC (ANS). The floor adjustment start command contact 57 is closed when the floor control start command KRUN1 is output from the elevator control device 10. The floor adjustment motor operation command relay 58 is energized and outputs a floor adjustment motor operation command KMT when the floor adjustment motor power-on detection contact 56 and the floor adjustment start command contact 57 are closed. To do.

  Further, the floor adjustment control circuit 43 includes a door closing detection contact 59, a floor adjustment control command contact 60, a floor adjustment brake power on relay 61, a floor adjustment brake power on detection contact 62, and a floor adjustment. A control command contact 63 and a floor adjustment brake operation command relay 64 are provided.

  The door closing detection contact 59 is closed when the door closing detection signal DCL is output from the door closing detection circuit 42. The floor adjustment control command contact 60 outputs a floor adjustment start command KRUN1 from the elevator control device 10 so that each floor adjustment motor 17 can be driven, and the floor adjustment control circuit 43 has a floor adjustment control. When the floor adjustment control command KRUN2 is output from the command generator (not shown), the closed state is entered. The floor adjustment brake power supply relay 61 is energized when the door closing detection contact 59 and the floor adjustment control command contact 60 are in the closed state, and the floor adjustment brake power supply command KBMC, the floor adjustment brake power supply The input command KBC (ANS) is output. The floor adjustment brake power on detection contact 62 is closed when the floor adjustment brake power on relay 61 outputs a floor adjustment brake power on command KBC (ANS). The floor adjustment control command contact 63 outputs a floor adjustment control command KRUN2 (a signal indicating that the floor adjustment motor 17 can be driven) from a floor adjustment control command generator (not shown). Sometimes closes. The floor adjustment brake operation command relay 64 is energized when the floor adjustment brake power-on detection contact 62 and the floor adjustment control command contact 63 are in a closed state, and outputs a floor adjustment brake release command KBK. To do.

  In addition, the power supply circuit 44 takes in power supplied from a commercial power supply, generates a power supply voltage having a specified voltage value (power supply voltage for the floor adjustment brake), and supplies the power to the floor adjustment brake power cutoff circuit 45. At the same time, a power supply voltage having a designated voltage value (power supply voltage for the floor adjustment motor) is generated, and power is supplied to the floor adjustment motor power cutoff circuit 48.

  The floor adjustment brake power cutoff circuit 45 includes a normally closed contact 65. The normally closed contact 65 is closed when the brake power supply cutoff command KBCC is not output from the floor adjustment monitoring circuit 41, and allows the power supply voltage output from the power supply circuit 44 to pass through. The power is supplied to the power switch circuit 46. When the brake power cutoff command KBCC is output from the floor adjustment monitoring circuit 41, the power supply voltage output from the power supply circuit 44 is cut off when the brake power supply cutoff command KBCC is output. Stop supplying.

  The floor adjustment brake power switching circuit 46 includes a normally open contact 66. The normally open contact 66 is closed when the floor adjustment brake power supply closing command KBMC is output from the floor adjustment control circuit 43, and the power supply voltage output from the floor adjustment brake power supply cutoff circuit 45 is supplied. It is passed through and supplied to the brake drive circuit 47. Further, when the floor adjustment brake power supply closing command KBC is not output from the floor adjustment control circuit 43, the floor adjustment brake circuit power supply voltage output from the floor adjustment brake power supply cut-off circuit 45 is cut off and brake driving is performed. The power supply to the circuit 47 is stopped.

  The brake drive circuit 47 is supplied with the power supply voltage from the floor adjustment brake power switching circuit 46 and when the floor adjustment brake release command KBK is supplied from the floor adjustment control circuit 43, a plurality of floor adjustment brake release voltages. Are supplied to the inter-floor adjustment brakes 23 to release the brake operation so that the inter-floor between the upper car 3 and the lower car 4 can be adjusted.

  The floor adjustment motor power cutoff circuit 48 includes a normally closed contact 67. This normally closed contact 67 is closed when the motor power cut-off command KMCC is not output from the floor adjustment monitoring circuit 41, and allows the power supply voltage output from the power supply circuit 44 to pass therethrough, and the floor adjustment motor power supply. This is supplied to the open / close circuit 49. Further, when the motor power cut-off command KMCC is output from the floor adjustment monitoring circuit 41, the power supply voltage output from the power supply circuit 44 is cut off when the motor power cut-off command KMCC is output, and Stop supplying.

  The floor adjustment motor power switching circuit 49 includes a normally open contact 68. The normally open contact 68 is closed when the floor adjustment motor power supply closing command KMMC is output from the floor adjustment control circuit 43, and the power supply voltage output from the floor adjustment motor power supply cutoff circuit 48 is supplied. Pass through and supply to the motor drive circuit 50. Further, when the floor adjustment motor power supply close command KMMC is not output from the floor adjustment control circuit 43, the floor adjustment motor power supply shut-off circuit 48 is cut off and the power supply voltage output from the floor adjustment motor power supply cutoff circuit 48 is cut off. The power supply to the circuit 50 is stopped.

  The motor drive circuit 50 is supplied with a power supply voltage from the floor adjustment motor power switching circuit 49 and outputs a floor adjustment motor operation command KMT from the floor adjustment control circuit 43. An inter-level adjustment motor drive voltage of polarity (or phase direction) and voltage value according to the instruction is generated and supplied to each inter-level adjustment motor 17, and the interval between the upper car 3 and the lower car 4 is adjusted.

  Each floor adjustment motor current detection circuit 51 is interposed between the motor drive circuit 50 and each floor adjustment motor 17, and outputs a floor adjustment motor drive voltage from the motor drive circuit 50. When the intermediate adjustment motor current is output, this is detected, and an intermediate adjustment motor current detection signal MIS is generated and supplied to the adjustment adjustment monitoring circuit 41.

  Next, the operation of the double deck elevator system 1 will be described with reference to FIGS.

  First, the hall call buttons 7a to 7n provided on the landing door mechanisms 2a to 2n, the in-car operation panels 8 and 9 provided in the upper car 3 and the lower car 4 of the double deck type car mechanism 5, respectively. When it is not operated and no call signal is output from each of the hall call buttons 7a to 7n and the operation panels 8 and 9 in the car, the elevator control circuit 34 provided in the elevator control device 10 lifts the hoist. The driving of the machine 32 is stopped, the hoisting drum of the hoisting machine 32 is braked, and the double deck type car mechanism 5 is stopped. The door opening / closing control circuit 40 generates a door opening command DOP (U (upper)) and a door opening command DOP (D (lower)), and the upper car door 20 and the lower car door 25, and the upper car 3 The holder 12 on each floor where the lower car 4 is stopped is opened.

  At this time, if each floor adjustment motor 17 and each floor adjustment brake 23 are normal, it is detected by the floor adjustment monitoring circuit 41, and the brake power supply cutoff command KBCC, the motor power supply cutoff command KMCC, and the floor adjustment brake abnormality detection are detected. The signal BES and the floor adjustment motor abnormality detection signal MES are not generated.

  At this time, the normally closed contact 65 of the floor adjustment brake power cutoff circuit 45 is closed, and the power supply voltage output from the power supply circuit 44 is the power supply circuit 44 → the floor adjustment brake power cutoff circuit 45 → the floor adjustment brake power supply. It is supplied to the floor adjustment brake power supply opening / closing circuit 46 through a path of the opening / closing circuit 46. Further, the normally closed contact 67 of the floor adjustment motor power cutoff circuit 48 is closed, and the power supply voltage output from the power supply circuit 44 is changed to the power supply circuit 44 → the floor adjustment motor power cutoff circuit 48 → the floor adjustment motor power supply. It is supplied to the floor adjustment motor power switching circuit 49 through a path consisting of the switching circuit 49.

  In this state, each of the hall call buttons 7 a to 7 n, the upper car 3, the in-car operation panels 8, 9 provided in the lower car 4, for example, by a passenger who has entered the upper car 3, When a destination button (not shown) provided on the inner operation panel 8 is pressed and a call signal is output, it is detected by the elevator control circuit 34, and as shown in FIG. The output of the door opening command DOP (U (upper)) and the door opening command DOP (D (lower)) from the opening / closing control circuit 40 is stopped, and the upper car door control mechanism 18 and the lower car door control mechanism 21 are used to 20, together with the lower car door 25, the hold doors 12 on the respective floors where the upper car 3 and the lower car 4 are stopped are closed.

  And the door closing detection switch 13 provided in each landing door mechanism 2a-2n, the upper car door closing detection switch 19 provided in the upper car 3 of the double deck type car mechanism 5, and the lower provided in the lower car 4 When all the car door close detection switches 22 are closed, the all door close detection relay 52 of the door close detection circuit 42 is excited, and a door close detection signal DCL is generated as shown in FIG. , To the inter-floor adjustment control circuit 43.

  Further, when the upper car door 20 and the lower car door 25 and the hold doors 12 on each floor where the upper car 3 and the lower car 4 are stopped are completely closed, the elevator control circuit 34 detects them. As shown in FIG. 5E, an elevator travel command ERUN is generated. Further, the difference between the current position (stop floor) of the double deck type car mechanism 5 and the floor specified by the call signal (target floor, planned floor floor), a preset traveling pattern, for example, FIG. Ascending / descending drive voltage corresponding to a traveling pattern having an elevator speed characteristic as shown in (a) is generated, and ascending / descending of the double-deck type car mechanism 5 is started.

  In parallel with this operation, when the floor adjustment start command KRUN1 is generated by the elevator control circuit 34 as shown in FIG. 5 (f), the floor adjustment control circuit 43 (g ), The floor adjustment motor power on command KMMC is generated, the normally open contact 68 of the floor adjustment motor power switching circuit 49 is closed, and the power circuit 44 → the floor adjustment motor power cutoff circuit 48. The power supply voltage is supplied to the motor drive circuit 50 through the path of the step adjustment motor power switching circuit 49 → the motor drive circuit 50, and the step adjustment motor operation command KMT is generated as shown in FIG. It is generated and supplied to the motor drive circuit 50.

  Thereby, the motor drive circuit 50 generates a floor adjustment motor drive voltage having a polarity (or phase direction) and a voltage value according to an instruction from the floor adjustment control circuit 43, and supplies it to each floor adjustment motor 17. Is done.

  After that, when the floor adjustment control command KRUN2 is generated by the floor adjustment control circuit 43 as shown in FIG. 5 (i), the floor adjustment brake power source is supplied as shown in FIG. 5 (j). The closing command KBC is generated, the normally open contact 66 of the floor adjustment brake power switching circuit 46 is closed, and the power circuit 44 → the floor adjustment brake power cutoff circuit 45 → the floor adjustment brake power switching circuit 46 → the brake. The power supply voltage is supplied to the brake drive circuit 47 through the path of the drive circuit 47, and the floor adjustment brake release command KBK is generated and supplied to the brake drive circuit 47 as shown in FIG. The

  As a result, the brake drive circuit 47 generates a floor adjustment brake release voltage, which is supplied to each floor adjustment brake 23, and the brake of each floor adjustment motor 17 is released.

  As a result, the driving force of each floor adjustment motor 17 to which the floor adjustment motor drive voltage from the motor drive circuit 50 is applied becomes effective, and the floor is scheduled to be landed at the floor adjustment speed shown in FIG. The floors of the upper car 3 and the lower car 4 are adjusted until the same interval as the floors of the floors is reached.

  Next, the floor adjustment of the upper car 3 and the lower car 4 is completed, and this is detected by the floor adjustment control circuit 43, and the output of the floor adjustment control command KRUN2 and the floor adjustment brake release command KBK is stopped, When the output of the floor adjustment brake release voltage is stopped from the brake drive circuit 47, the brakes are applied to the floor adjustment motors 17 by the floor adjustment brakes 23, and the floors of the upper car 3 and the lower car 4 are fixed. At the same time, the output of the floor adjustment brake power supply command KBC is stopped, the normally open contact 66 of the floor adjustment brake power supply switching circuit 46 is opened, and the power supply circuit 44 and the brake drive circuit 47 are electrically connected. Is blocked.

  Thereafter, the output of the floor adjustment motor operation command KMT is stopped by the floor adjustment control circuit 43, the output of the floor adjustment motor drive voltage is stopped from the motor drive circuit 50, and each floor adjustment motor 17 is completely stopped. Is done. Further, the output of the floor adjustment motor power supply command KMMC is stopped, the normally open contact 68 of the floor adjustment motor power supply switching circuit 49 is opened, and the power supply circuit 44 and the motor drive circuit 50 are electrically connected. Will be blocked.

  In parallel with this operation, when the double-deck type car mechanism 5 is completely stopped on the planned landing floor, the elevator control circuit 34 in the elevator controller 10 adjusts the floor adjustment from the floor adjustment control circuit 43. It is checked whether the brake power-on command KBMC and the floor adjustment motor power-on command KMMC are output.

  Then, when the double-deck type car mechanism 5 is completely stopped on the planned landing floor, the floor adjustment control circuit 43 outputs the floor adjustment brake power-on command KBMC and the floor adjustment motor power-on command KMMC. Otherwise, when the double deck type car mechanism 5 is completely stopped on the planned landing floor, the elevator control circuit 34 generates automatic door opening commands (DOPA) and (DOPB), and the door opening / closing control circuit. 40 generates a door opening command DOP (U (upper)) and a door opening command DOP (D (lower)). The door opening command DOP (U (upper)) and the door opening command DOP (D (lower)) are supplied to the upper car door control mechanism 18 and the lower car door control mechanism 21, respectively, of the double deck type car mechanism 5. As a result, the upper car door 20, the lower car door 25, and the respective hold doors 12 on the landing floor are opened.

  Further, as shown in FIGS. 6A to 6K, when the double deck type car mechanism 5 is completely stopped on the planned landing floor, the floor adjustment brake power is turned on from the floor adjustment control circuit 43. If the command KBMC and the floor adjustment motor power-on command KMMC are output, the elevator control is performed until the floor adjustment brake power-on command KBMC and the floor adjustment motor power-on command KMMC are not output from the floor adjustment control circuit 43. The circuit 34 prohibits generation of automatic door opening commands (DOPA) and (DOPB).

  Thereafter, when the output of the floor adjustment brake power supply command KBMC and the floor adjustment motor power supply command KMMC from the floor adjustment control circuit 43 is stopped, the elevator control circuit 34 causes the automatic door opening command (DOPA), ( DOPB) is generated, and the door opening / closing control circuit 40 generates a door opening command DOP (U (upper)) and a door opening command DOP (D (lower)). The door opening command DOP (U (upper)) and the door opening command DOP (D (lower)) are supplied to the upper car door control mechanism 18 and the lower car door control mechanism 21, respectively, of the double deck type car mechanism 5. As a result, the upper car door 20, the lower car door 25, and the respective hold doors 12 on the landing floor are opened.

  As described above, in the first embodiment, the interfloor adjustment device 11 performs the interfloor adjustment operation of the double deck type riding mechanism 5 and adjusts the interval between the upper car 3 and the lower car 5 to land on the target floor. When the upper car door 20, the lower car door 25, and the floor holders 12 are opened, the normally open contact 66 of the floor adjustment brake power switching circuit 46 and the floor adjustment motor power switching circuit 49 are provided. The normally open contact 68 is opened so that the power supply circuit 44 and the brake drive circuit 47 are completely cut off, and the power supply circuit 44 and the motor drive circuit 50 are completely cut off. ing. For this reason, even when the brake drive circuit 47, the motor drive circuit 50, etc. of the floor adjustment device 11 malfunction when the double deck type car mechanism 5 is landing, the space between the upper car 3 and the lower car 4 is increased. Can be maintained at a constant value, and it is possible to prevent a step from occurring between the floor surface on the landing side where the upper car 3 and the lower car 4 are landed and the floor surface of the upper car 3 and the lower car 4. can do.

  In the first embodiment, when the power supply voltage is supplied to the brake drive circuit 47 and the power supply voltage is supplied to the motor drive circuit 50, the door opening operation of the double deck type car mechanism 5 is prohibited. When the power supply voltage to the brake drive circuit 47 is cut off and the power supply voltage to the motor drive circuit 50 is cut off, the door opening operation of the double deck type car mechanism 5 is permitted. For this reason, even if the brake drive circuit 47, the motor drive circuit 50, etc. of the floor adjustment device 11 malfunction, the floor of the upper car 3 and the lower car 4 can be held at a constant value.

  Further, in the first embodiment, the instruction content for the inter-story adjustment motor power switching circuit 49 and the power shut-off status of the inter-story adjustment motor power switching circuit 49 are checked. The normally closed contact 67 of the floor adjustment motor power cut-off circuit 48 is opened to cut off the power supply voltage to the motor drive circuit 50 and prohibit generation of the floor adjustment motor drive voltage. For this reason, even if not only the motor drive circuit 50 of the floor adjustment device 11 but also the floor adjustment motor power switching circuit 49 that supplies / shuts off the power supply voltage to the motor drive circuit 50 or the like malfunctions, It is possible to maintain a constant value between the floors of the lower car 4.

  In the first embodiment, the instruction content for the floor adjustment brake power switching circuit 46 and the power shut-off status of the floor adjustment brake power switching circuit are checked, and when the command content and the power shut-off status do not match, The normally closed contact 65 of the floor adjustment brake power cut-off circuit 45 is opened to cut off the power supply voltage to the brake drive circuit 47 and prohibit the generation of the floor adjustment brake release voltage. Therefore, even if not only the brake drive circuit 47 of the floor adjustment device 11 but also the floor adjustment brake power supply open / close circuit 46 that supplies / cuts off the power supply voltage to the brake drive circuit 47 malfunctions, The floor of the lower car 4 can be kept at a constant value.

  Further, in the first embodiment, the floor adjustment motor current detection circuit 51 detects the state of the floor adjustment motor current supplied to the floor adjustment motor 17 and the floor adjustment monitor circuit 41 It is monitored whether the instruction content to the adjustment motor power supply switching circuit 49 and the current detection result of the floor adjustment motor current detection circuit 51 match, and if they do not match, the power supply voltage to the motor drive circuit 50 is cut off. The generation of the inter-level adjustment motor drive voltage is prohibited. Therefore, even if the motor drive circuit 50 of the floor adjustment device 11 and the floor adjustment motor power switching circuit 49 that supplies / shuts off the power supply voltage to the motor drive circuit 50 malfunction, the motor drive circuit 50, Even when a connection error or the like occurs during maintenance of the floor adjustment motor power switching circuit 49 or the like, the floors of the upper car 3 and the lower car 4 can be held at a constant value.

  In the first embodiment, the opening / closing state of the floor adjustment brake 23 is detected by the floor adjustment brake switch 24, and the instruction content to the floor adjustment brake power supply opening / closing circuit 46 is detected by the floor adjustment monitoring circuit 41. It is monitored whether or not the detection result of the floor adjustment brake switch 24 matches, and when they do not match, the power supply voltage to the brake drive circuit 47 is cut off to prohibit generation of the floor adjustment brake release voltage. I have to. For this reason, even if the brake drive circuit 47 of the floor adjustment device 11 and the floor adjustment brake power supply open / close circuit 46 that supplies / cuts off the power supply voltage to the brake drive circuit 47 malfunction, the brake drive circuit 47, Even when a connection error or the like occurs during maintenance of the floor adjustment brake power switching circuit 46 or the like, the floor of the upper car 3 and the lower car 4 can be held at a constant value.

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

DESCRIPTION OF SYMBOLS 1 ... Double deck elevator system 2a-2n ... Platform door mechanism 5 ... Double deck type car mechanism 6 ... Lifting mechanism 7a-7n ... Platform call button 8, 9 ... Car operation panel 10 ... Elevator control device 11 ... Inter-story adjustment Device 12 ... Hold door 13 ... Door closing detection switch 15 ... Car frame 16 ... Screw rod 17 ... Interfloor adjustment motor 18 ... Upper corner door control mechanism 19 ... Door closing detection switch 20 ... Upper cage door 21 ... Lower cage door control mechanism 22 ... Door closing detection switch 23 ... Inter-floor adjustment brake 24 ... Inter-floor adjustment brake switch 25 ... Lower car door 31 ... Main rope 32 ... Hoisting machine 33 ... Brake mechanism 34 ... Elevator control circuit 35 ... Inter-floor adjustment motor power on Command detection contact 36 ... Inter-story adjustment brake power-on detection contact 37 ... Automatic door open command detection contact 39 ... Door open command relay 40 Door opening / closing control circuit 41 ... Floor adjustment monitoring circuit 42 ... Door closing detection circuit 43 ... Floor adjustment control circuit 44 ... Power supply circuit 45 ... Floor adjustment brake power cut-off circuit 46 ... Floor adjustment brake power supply opening / closing circuit 47 ... Brake drive Circuit 48 ... Inter-story adjustment motor power cut-off circuit 49 ... Inter-story adjustment motor power switching circuit 50 ... Motor drive circuit 51 ... Inter-story adjustment motor current detection circuit 52 ... All door close detection relay 53 ... Door close detection contact 54 ... Inter floor Adjustment start command contact 55: Inter-story adjustment motor power-on relay 56 ... Inter-story adjustment motor power-on detection contact 57 ... Inter-story adjustment start command contact 58 ... Inter-story adjustment motor operation command relay 59 ... Door closing detection contact 60 ... Inter-story Adjustment control command contact 61 ... Inter-story adjustment brake power-on relay 62 ... Inter-story adjustment brake power-on detection contact 63 ... Inter-story adjustment control command contact 64 ... Inter-story Adjustment brake operation command relay 65, 67 ... Normally closed contact 66, 68 ... Normally open contact 67 ... Normally closed contact

Claims (5)

A brake drive circuit that generates a floor adjustment brake release voltage and supplies it to the floor adjustment brake, making the distance between the upper car and the lower car constituting the double-deck type car mechanism adjustable.
A motor drive circuit that generates a floor adjustment motor drive voltage and supplies it to the floor adjustment motor, and adjusts the interval between the upper car and the lower car;
A floor adjustment brake power switching circuit that shuts off the power of the brake drive circuit and prohibits generation of the floor adjustment brake release voltage while the double deck type car mechanism is stopped and opened.
A floor adjustment motor power switching circuit that shuts off the power of the motor drive circuit and inhibits generation of the floor adjustment motor drive voltage while the double deck type car mechanism is stopped and opened.
When power is supplied to both the brake drive circuit and the motor drive circuit, the door opening operation of the double deck type car mechanism is prohibited, and the power supply to both the brake drive circuit and the motor drive circuit is cut off. A door opening / closing circuit that allows the door opening operation of the double deck type car mechanism,
A double-deck elevator system characterized by The double deck elevator system according to claim 1,
The instruction content for the floor adjustment motor power switching circuit and the power shut-off status of the floor adjustment motor power switching circuit are checked, and when the command content and the power shut-off status do not match, the power of the motor drive circuit is turned off. A floor adjustment motor power cutoff circuit that shuts off and prohibits generation of the floor adjustment motor drive voltage;
A double-deck elevator system characterized by In the double deck elevator system according to claim 1 or 2,
The instruction content for the floor adjustment brake power switching circuit and the power shut-off status of the floor adjustment brake power switching circuit are checked, and when the command content and the power shut-off status do not match, the power of the brake drive circuit is turned off. A floor adjustment brake power cutoff circuit that shuts off and prohibits generation of the floor adjustment brake release voltage;
A double-deck elevator system characterized by In the double deck elevator system according to any one of claims 1 to 3,
A floor adjustment motor current detection circuit for detecting a state of a current supplied to the floor adjustment motor;
When the instruction content to the floor adjustment motor power switching circuit and the current detection result of the floor adjustment motor current detection circuit do not match, the power of the motor drive circuit is cut off to generate the floor adjustment motor drive voltage. A floor adjustment motor monitoring circuit that prohibits
A double-deck elevator system characterized by In the double deck elevator system according to any one of claims 1 to 4,
A floor adjustment brake switch for detecting an open / close state of the floor adjustment brake;
When the instruction content to the floor adjustment brake power supply switching circuit and the detection result of the floor adjustment brake switch do not match, the power supply of the brake drive circuit is shut off and the generation of the floor adjustment brake release voltage is prohibited. A floor adjustment brake monitoring circuit;
A double-deck elevator system characterized by

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