Landing door unlocking system

Abstract

To provide a landing door unlocking system capable of easily unlocking a locking mechanism of a landing door.SOLUTION: A landing door unlocking system 100 includes a communication device 21, a control part 110, and an unlocking device 22. The unlocking device 22 can unlock the locking mechanism 40 based on an unlocking signal input from the control unit 110. At least one of the communication device 21 and the mobile terminal 29 transmits, to the control unit 110, floor information on a floor where the mobile terminal 29 is located among a plurality of floors, based on communication between the communication device 21 and the mobile terminal 29 held by the worker 28. Based on the floor information, the control unit 110 outputs an unlocking signal to the unlocking device 22 provided in the landing 20 corresponding to the floor information.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to a landing door lock release system. [Background technology]

[0002] Generally, elevator maintenance and inspection is performed by workers with specialized knowledge. One of the maintenance and inspection tasks is the inspection of equipment installed in the elevator shaft. During this task, the worker works while standing on top of the car. Typically, the worker unlocks the locking mechanism of the landing door using a special unlocking key, and then climbs onto the car from the landing. Specifically, for example, the worker unlocks the locking mechanism of the landing door by inserting the unlocking key into the elevator shaft through the gap in the landing door and operating the unlocking device installed on the landing door.

[0003] As a technology related to unlocking the locking mechanism of a landing door using an unlocking key, JP 2015-024881 A (Patent Document 1) describes an elevator system equipped with a holder that holds the unlocking key and a transmitter that emits a signal to allow the unlocking key to be removed from the holder. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-024881 Summary of the Invention [Problem to be solved by the invention]

[0005] In elevator maintenance and inspection, from the viewpoint of workability, it is required to be able to easily release the locking mechanism of the landing door.

[0006] The present disclosure has been made in view of the above, and an object of the present disclosure is to provide a landing door lock release system that can easily release the lock mechanism of a landing door. [Means for solving the problem]

[0007] A landing door unlocking system according to the present disclosure unlocks a locking mechanism that prevents an elevator landing door from being manually opened. The landing door unlocking system includes a communication device, a control unit, and an unlocking device. The communication device is provided at each landing of a plurality of floors where the elevator car can stop. The control unit is capable of communicating with at least one of the communication device and a mobile terminal. The unlocking device is provided at each landing of the plurality of floors. The unlocking device is capable of unlocking the locking mechanism based on an unlocking signal input from the control unit. At least one of the communication device and the mobile terminal transmits floor information regarding a floor on which the mobile terminal is located among the plurality of floors to the control unit based on communication between the communication device and the mobile terminal held by an operator. The control unit outputs an unlocking signal to the unlocking device provided at the landing corresponding to the floor information based on the floor information. [Effects of the Invention]

[0008] According to the present disclosure, it is possible to provide a landing door lock release system that can easily release the lock mechanism of a landing door. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a diagram schematically illustrating the structure of an elevator. [Figure 2] FIG. 2 is a schematic diagram showing the configuration of a landing door lock release system. [Figure 3] FIG. 2 is a diagram schematically illustrating an elevator hall. [Figure 4] FIG. 2 is a schematic diagram showing the configuration of a landing door and an unlocking device. [Figure 5] FIG. 2 is a perspective view showing the configuration of the unlocking device. [Figure 6] FIG. 2 is a first partial cross-sectional schematic view showing the configuration of the lock release device. [Figure 7] FIG. 2 is a second partial cross-sectional schematic view showing the configuration of the lock release device. [Figure 8] FIG. 2 is a cross-sectional view showing the configuration of the housing of the unlocking device. [Figure 9]10 is a schematic diagram showing a state in which the unlocking device releases the lock mechanism. FIG. [Figure 10] 10 is a flowchart of an unlocking process. [Figure 11] 10 is a flowchart of an abnormality detection process. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In the following drawings, the same or corresponding parts are designated by the same reference numerals, and description thereof will not be repeated.

[0011] (Outline of elevator)

[0012] First, an overview of the elevator will be described. As shown in FIG. 1, a hoistway 98 is provided inside a building (not shown). An elevator car 90 is installed inside the hoistway 98. The car 90 moves up and down inside the hoistway 98 to move between multiple floors. In this embodiment, the building is assumed to be five stories tall. It is assumed that one elevator is installed inside the building. The car 90 can stop at each floor from the first floor (1F) to the fifth floor (5F).

[0013] For example, a machine room 95 is provided directly above the hoistway 98. The machine room 95 is provided with a hoisting machine 130 and a control unit 110. The control unit 110 is a control panel that controls various devices of the elevator. The hoisting machine 130 has a motor. The control unit 110 drives the hoisting machine 130 to cause the car 90 installed in the hoistway 98 to travel upward or downward.

[0014] A landing entrance 1 is provided at each of the landings 20 on the multiple floors. The landing entrance 1 connects the landing 20 to an elevator shaft 98. A landing door 4 is provided at the landing entrance 1. When the landing door 4 is open, the landing 20 communicates with the elevator shaft 98 via the landing entrance 1. When the landing door 4 is closed, the landing 20 is separated from the elevator shaft 98. A pit 96 is provided below the elevator shaft 98. A car door 94 is provided at the car 90.

[0015] FIG. 1 shows a worker 28. The worker 28 performs an elevator inspection. The worker 28 holds a mobile terminal 29. The mobile terminal 29 is used by the worker 28 during the elevator inspection. The mobile terminal 29 is, for example, a smartphone.

[0016] In this embodiment, the elevator is a traction elevator. A traction elevator is one type of rope elevator. The elevator has a car 90, a counterweight 92, a rope 91, and a hoist 130. The rope 91 is hung on the hoist 130. The car 90 and the counterweight 92 are suspended from both ends of the rope 91.

[0017] The elevator is not limited to a traction elevator. For example, the elevator may be a drum elevator or a hydraulic elevator. A drum elevator is one type of rope elevator. A drum elevator raises and lowers a car 90 by winding a rope 91 around a drum. A drum elevator does not use a counterweight 92. A hydraulic elevator raises and lowers a car 90 by using an electric pump to send oil to a hydraulic jack.

[0018] If there is no machine room 95, the hoisting machine 130 and the control unit 110 are installed inside the hoistway 98. Specifically, the hoisting machine 130 and the control unit 110 are installed on the wall surface of the hoistway 98 or inside the pit 96.

[0019] (Configuration of the landing door unlocking system)

[0020] Next, the configuration of the landing door lock release system 100 according to this embodiment will be described.

[0021] As shown in Fig. 2, the landing door unlocking system 100 includes a control unit 110, a plurality of landing devices 120, and a hoist 130. The landing door unlocking system 100 is a system that unlocks a locking mechanism 40, which will be described later. The locking mechanism 40 prevents the landing doors 4 of the elevator from being opened manually. The landing door unlocking system 100 is installed in the building described above.

[0022] The control unit 110 has an individual car control unit 111 and an unlocking control unit 112. The individual car control unit 111 is a control board that controls the operation of the elevator. The unlocking control unit 112 is a control board that controls the unlocking device 22, which will be described later. The unlocking control unit 112 may be a control board different from that of the individual car control unit 111, or may be the same control board.

[0023] The hall device 120 is provided at the hall 20 on each of the first to fifth floors. In other words, the hall device 120 is provided at each of the halls 20 on a plurality of floors at which the car 90 can stop.

[0024] Each of the multiple hall devices 120 is connected to the individual car control unit 111 via a first control cable 26. The first control cable 26 has multiple bundled signal lines. The first control cable 26 runs along the wall surface of the elevator shaft 98 (see FIG. 1).

[0025] The landing device 120 has a communication device 21, an unlocking device 22, a landing button 23, and an alarm unit 24. From another perspective, the communication device 21, the unlocking device 22, the landing button 23, and the alarm unit 24 are each provided at each landing 20 of a plurality of floors at which the car 90 can stop.

[0026] The communicator 21 can communicate with the mobile terminal 29 by wireless communication. Specifically, the communicator 21 and the mobile terminal 29 are communicatively connected using dedicated application software installed on the mobile terminal 29, for example. The dedicated application software is used by the worker 28.

[0027] Based on communication between the communicator 21 and the mobile terminal 29, the communicator 21 transmits information (floor information) relating to the floor on which the mobile terminal 29 is located among the plurality of floors to the control unit 110. From another perspective, the control unit 110 acquires the floor information from the communicator 21. Specifically, for example, when a communication connection between the communicator 21 and the mobile terminal 29 is established, the communicator 21 outputs a signal to the control unit 110. The control unit 110 is configured to be able to determine the communicator 21 that has output the signal among the communicators 21 provided on each of the plurality of floors. The communicator 21 may output the signal to the individual machine control unit 111 or to the unlocking control unit 112.

[0028] An unlocking signal and an unlocking completion signal are input to the unlocking device 22 from an unlocking control unit 112 of the control unit 110. The unlocking control unit 112 can control the power supplied to the motor 35 of the unlocking device 22. A signal relating to the position of the movable part 34 and an abnormality signal are input to the unlocking control unit 112 from a movable part position detection unit 36 ​​described below.

[0029] The unlocking device 22 is configured to be able to release a locking mechanism 40 of the landing door 4, which will be described later, based on the release signal. The unlocking device 22 is configured to be able to complete the release of the locking mechanism 40 based on the release completion signal. The details of the unlocking device 22 will be described later.

[0030] When the landing button 23 is pressed, it outputs a signal to the individual-machine control unit 111. The notification unit 24 notifies the worker 28 that the lock mechanism 40 has been released by the lock release device 22. Specifically, the notification unit 24 emits a sound based on the signal from the individual-machine control unit 111, for example.

[0031] The hoist 130 outputs a signal relating to the stopping position of the car 90 to the control unit 110. Specifically, for example, the hoist 130 outputs a signal relating to the floor on which the car 90 is stopped, among the first to fifth floors, to the individual car control unit 111.

[0032] The control unit 110 can set the operation mode of the elevator to either the normal operation mode or the unlock mode. Specifically, when a maintenance terminal used by an operator 28 is connected to the individual elevator control unit 111 and the maintenance terminal is operated, the control unit 110 sets the operation mode of the elevator to either the normal operation mode or the unlock mode. The maintenance terminal is, for example, a personal computer. The control unit 110 can determine whether the operation mode of the elevator is either the normal operation mode or the unlock mode.

[0033] In the unlocking mode, the control unit 110 can unlock the locking mechanism 40 by controlling the unlocking device 22. From another perspective, when the operation mode of the elevator is the unlocking mode, the control unit 110 can output an unlocking signal to the unlocking device 22. When the operation mode of the elevator is the normal operation mode, the control unit 110 does not output an unlocking signal to the unlocking device 22. From another perspective, in the normal operation mode, the unlocking device 22 does not operate.

[0034] Each platform control unit 111 is connected to the hoisting machine 130 via a second control cable 27. Each platform control unit 111 has a plurality of bundled signal lines. Each platform control unit 111 has a processor, a memory, and a communication interface. The processor is a CPU (Central Processing Unit). The memory is, for example, a ROM (Read Only Memory) and a RAM (Random Access Memory). These are connected to each other via a bus so that they can communicate with each other.

[0035] The ROM of each platform control unit 111 stores a management software program for controlling the hall device 120 and the hoist 130. The CPU of each platform control unit 111 loads the program stored in the ROM into the RAM and executes it to control the hall device 120 and the hoist 130. The RAM is a working area when the CPU executes the program, and temporarily stores the program, data when the program is executed, and the like.

[0036] Each platform control unit 111 is configured to be able to communicate with the hall device 120 and the hoisting machine 130 by serial communication or parallel communication via a communication interface.

[0037] Like the individual machine control unit 111, the unlocking control unit 112 has a processor, memory, and a communication interface. The ROM of the unlocking control unit 112 stores a software program for controlling the unlocking device 22. The CPU of the unlocking control unit 112 loads the program stored in the ROM into the RAM and executes it to control the unlocking device 22.

[0038] (Example of a boarding area)

[0039] Next, a description will be given of an example of the elevator hall 20. Fig. 3 is a schematic diagram showing an example of the elevator hall 20. Fig. 3 shows a schematic diagram of the hall 20 as seen from the front.

[0040] The following description will be given taking the second floor hall 20 as an example. The hall 20 is provided with a hall door 4 and a hall operating panel 70. The hall operating panel 70 is included in a hall device 120 (see FIG. 2).

[0041] The hall operating panel 70 has a panel 72, a hall button 23, an indicator 71, a communication device 21, and an alarm unit 24. For ease of explanation, the alarm unit 24 is not shown in Fig. 3. The panel 72 is fitted into the wall of the hall 20.

[0042] The landing button 23 is attached to the panel 72. The landing button 23 has an up button 81 and a down button 82. When either the up button 81 or the down button 82 is pressed, a landing call is registered to call a car 90 (see Figure 1) to the floor where the landing button 23 is located. When the up button 81 is pressed, a car 90 traveling in an upward direction is called. When the down button 82 is pressed, a car 90 traveling in a downward direction is called.

[0043] The indicator 71 is attached to a panel 72. The indicator 71 indicates the direction in which the car 90 is traveling and the floor on which the car 90 is located.

[0044] When viewed from the landing 20, the communication device 21 is covered by the panel 72. From another perspective, the communication device 21 is not exposed to the landing 20. The communication device 21 is configured to be able to communicate with a mobile terminal 29 located in the landing 20 of the floor on which the communication device 21 is installed. The communication device 21 cannot communicate with a mobile terminal 29 located in a landing 20 of a floor other than the floor on which the communication device 21 is installed. Specifically, for example, the communication device 21 installed in the landing 20 on the Nth floor cannot communicate with a mobile terminal 29 located in the landing 20 on the N+1th floor.

[0045] The notification unit 24 is covered by, for example, the panel 72. From another perspective, the notification unit 24 is not exposed to the landing 20. The notification unit 24 is, for example, a speaker. The notification unit 24 emits a sound when, for example, the up button 81 or the down button 82 is pressed.

[0046] (Configuration of landing door and lock release device)

[0047] Next, the configuration of the landing door 4 and the unlocking device 22 will be described with reference to Fig. 4. Fig. 4 shows a state in which the landing door 4 is closed. Fig. 4 shows the configuration of the landing door 4 and the unlocking device 22 when looking at the top of the landing door 4 from the elevator shaft 98 towards the landing 20.

[0048] The landing door 4 has a pair of door movable parts 46 and a door fixed part 47. For ease of explanation, one of the pair of door movable parts 46 is not shown in Fig. 4. As shown in Fig. 4, the door movable part 46 has a door panel 5, a door hanger 6, and a pair of door rollers 7.

[0049] The door panel 5 is the portion exposed to the landing 20 (see FIG. 3). A door hanger 6 is attached to the upper part of the door panel 5. From another perspective, the door panel 5 is suspended by the door hanger 6. A pair of door rollers 7 are attached to the door hanger 6. Each of the pair of door rollers 7 is rotatable on its own axis.

[0050] The door fixing portion 47 has a hanger case 2 and a door rail 3. The hanger case 2 is fixed to an upper part of the landing entrance / exit 1. The door rail 3 is fixed to the hanger case 2. The door rail 3 is provided along the width direction 101. A door roller 7 is positioned on the door rail 3. The door roller 7 is configured to be movable while rotating on the door rail 3. From another perspective, the door roller 7, the door hanger 6, and the door panel 5 are configured to be movable along the width direction 101. The width direction 101 is the width direction of the landing entrance / exit 1. The height direction of the landing entrance / exit 1 is the vertical direction 102. The vertical direction 102 is the vertically downward direction.

[0051] The landing door 4 has a lock mechanism 40 and an interlock switch 42. The lock mechanism 40 prevents the landing door 4 from being manually opened. The lock mechanism 40 has a latch 9 and a latch receiving member 8. The latch 9 is attached to the door hanger 6. The latch 9 is rotatable relative to the door hanger 6.

[0052] The latch receiving member 8 is fixed to the hanger case 2. The latch receiving member 8 is a metal fitting. When the landing door 4 is closed, the latch 9 is hooked onto the latch receiving member 8. When the latch receiving member 8 and the latch 9 are hooked together, the locking mechanism 40 restricts movement of the door movable part 46 in the width direction 101.

[0053] The interlock switch 42 detects whether the latch 9 is hooked on the latch receiving member 8. The interlock switch 42 is in the ON state when the hall door 4 is closed, and is in the OFF state when the hall door 4 is open. When the interlock switch 42 is in the OFF state, for safety reasons, the control unit 110 controls the hoisting machine 130 to prevent the car 90 from traveling. The hall device 120 (see FIG. 2) includes the interlock switch 42.

[0054] The interlock switch 42 has a fixed contact 43 and a movable contact 44. The fixed contact 43 is provided on the hanger case 2. The fixed contact 43 is provided on the latch 9. When the latch receiving member 8 and the latch 9 are engaged, the movable contact 44 comes into contact with the fixed contact 43.

[0055] When the movable contact 44 and the fixed contact 43 are in contact, the interlock switch 42 is in the ON state. Conversely, when the movable contact 44 is separated from the fixed contact 43, the interlock switch 42 is in the OFF state. When the interlock switch 42 is in the ON state, the interlock switch 42 outputs a signal to the individual machine control unit 111 (see FIG. 2).

[0056] The hanger case 2 has a main portion 25, a plate member 45, and a fastening screw 49. The plate member 45 is fixed to the main portion 25. The plate member 45 is, for example, a metal plate. The latch receiving member 8 is attached to the plate member 45. The latch receiving member 8 is positioned in the vertical direction 102 relative to the plate member 45.

[0057] The unlocking device 22 is fixed to the plate member 45. Specifically, the unlocking device 22 is positioned in the direction opposite to the vertical direction 102 with respect to the plate member 45. The plate member 45 is sandwiched between the unlocking device 22 and the latch receiving member 8. The unlocking device 22 is not exposed to the landing 20 (see FIG. 3 ). In other words, the unlocking device 22 cannot be seen from the landing 20.

[0058] The unlocking device 22 can unlock the lock mechanism 40 based on an unlocking signal input from the unlocking control unit 112. Specifically, the unlocking device 22 releases the latch 9 from the latch receiving member 8. The operation of the unlocking device 22 will be described in detail later.

[0059] The landing door 4 has a fixed roller 10 and a movable roller 11. The fixed roller 10 and the movable roller 11 are provided on the latch 9. Each of the fixed roller 10 and the movable roller 11 is a portion that comes into contact with the car door 94 of the car 90.

[0060] When the car door 94 opens while the car 90 is stopped at a floor, the movable roller 11 is pushed by a release device (not shown) provided on the car door 94. This causes the latch 9 to rotate. The latch 9 is released from the latch receiving member 8. Thereafter, the movable roller 11 and the fixed roller 10 are each pushed by the release device, and the landing door 4 is opened. When the landing door 4 closes from an open state, the latch 9 is engaged with the latch receiving member 8.

[0061] (Details of the unlocking device)

[0062] Next, a detailed description will be given of the unlocking device 22. As shown in Figures 5 and 6, the unlocking device 22 has a housing 38, a movable part 34, and a dust cover 37.

[0063] The outer shape of the housing 38 is, for example, a rectangular parallelepiped. An opening 59 is provided in the housing 38. The movable part 34 protrudes from the opening 59 to the outside of the housing 38. A part of the movable part 34 is located inside the housing 38. The movable part 34 is in the shape of a flat plate.

[0064] The dustproof cover 37 covers at least a part of the opening 59. The dustproof cover 37 is flexible. The dustproof cover 37 is made of, for example, rubber. The dustproof cover 37 prevents dust and the like from entering the inside of the housing 38. The dustproof cover 37 is in contact with the movable part 34.

[0065] 6 and 7, the lock release device 22 has a motor 35, a first power transmission unit 31, a second power transmission unit 32, a third power transmission unit 33, a movable unit position detection unit 36, a cable 39, a nut 58, and an elastic body 30. For ease of explanation, the dust cover 37 (see FIG. 5) is not shown in FIGS. 6 and 7.

[0066] The motor 35 is located inside the housing 38. The motor 35 generates power for moving the movable part 34. The first power transmission part 31, the second power transmission part 32, and the third power transmission part 33 are aligned along the width direction 101.

[0067] The first power transmission unit 31 is attached to the shaft of the motor 35. The first power transmission unit 31 is located inside the housing 38. The first power transmission unit 31 is a gear. The first power transmission unit 31 transmits the rotation generated by the motor 35 to the second power transmission unit 32.

[0068] The second power transmission unit 32 is attached to the housing 38. The second power transmission unit 32 is located inside the housing 38. The second power transmission unit 32 transmits the rotation received from the first power transmission unit 31 to the third power transmission unit 33.

[0069] The second power transmission unit 32 has two first gears 51, a first shaft 52, and two first brackets 53. Each of the two first brackets 53 is fixed to the housing 38. The first shaft 52 is attached to each of the two first brackets 53. The first shaft 52 is rotatable with respect to the two first brackets 53.

[0070] Each of the two first gears 51 is fixed to a first shaft 52. Of the two first gears 51, one of the first gears 51 is in mesh with the first power transmission part 31.

[0071] The third power transmission unit 33 is located inside the housing 38. The third power transmission unit 33 transmits the rotation received from the second power transmission unit 32 to the movable unit 34. From another perspective, the movable unit 34 rotates together with the third power transmission unit 33.

[0072] The third power transmission unit 33 has two second gears 54, a second shaft 55, and two second brackets 56. Each of the two second brackets 56 is fixed to the housing 38. The second shaft 55 is attached to each of the two second brackets 56. The second shaft 55 is rotatable relative to the two second brackets 56. Each of the two second gears 54 is fixed to the second shaft 55. The two second gears 54 mesh with the two first gears 51.

[0073] The movable part 34 is fixed to the second shaft 55. Specifically, the movable part 34 is fixed to the second shaft 55 so that the second shaft 55 passes through an end of the movable part 34. The movable part 34 rotates together with the second shaft 55.

[0074] The movable part position detector 36 is attached to the motor 35. The movable part position detector 36 is a rotary encoder. The movable part position detector 36 can detect the position of the movable part 34 by detecting the amount of rotation of the shaft of the motor 35.

[0075] The movable part position detection unit 36 ​​outputs a signal related to the position of the movable part 34 to the unlocking control unit 112 (see FIG. 2). The movable part position detection unit 36 ​​may be capable of outputting an abnormality signal, which will be described later, to the unlocking control unit 112, for example.

[0076] The cable 39 is connected to each of the motor 35 and the movable part position detection unit 36. The cable 39 includes a power line that supplies power to the motor 35 and a signal line that transmits a signal output from the movable part position detection unit 36. The cable 39 is drawn out from the housing 38. The cable 39 is located inside the elevator shaft 98 along the first control cable 26. The cable 39 is connected to the lock release control unit 112.

[0077] The nut 58 is fixed to the housing 38. Specifically, the nut 58 is joined to the housing 38 by welding. A fastening screw 49 (see FIG. 4) is screwed into the nut 58. From another perspective, the fastening screw 49 fastens the housing 38, the plate member 45, and the latch receiving member 8 together. The housing 38 is located on the plate member 45. The plate member 45 is sandwiched between the housing 38 and the latch receiving member 8.

[0078] The cross section shown in FIG. 8 is a cross section perpendicular to the width direction 101. As shown in FIG. 8, the housing 38 has an inner frame 61, an outer frame 62, and a plurality of screws 63. In the cross section perpendicular to the width direction 101, the inner frame 61 is C-shaped. The inner frame 61 is made of, for example, iron. The outer frame 62 is located on the inner frame 61. The outer frame 62 covers a portion of the inner frame 61. The outer frame 62 is made of, for example, iron.

[0079] The plurality of screws 63 fasten the inner frame 61 and the outer frame 62. Specifically, the plurality of screws 63 are screwed into female threads (not shown) provided in the inner frame 61. The outer frame 62 is sandwiched between each of the plurality of screws 63 and the inner frame 61.

[0080] As shown in FIG. 6, the elastic body 30 is located between the housing 38 and the movable part 34. An end of the elastic body 30 is fixed to the housing 38. The end of the elastic body 30 opposite the end fixed to the housing 38 is fixed to the movable part 34. The elastic body 30 is configured to be expandable and contractible along a vertical direction 102. The elastic body 30 is, for example, a spring. The elastic body 30 applies a force to the movable part 34 along the vertical direction 102. The elastic body 30 is located in a width direction 101 with respect to the second axis 55. The elastic body 30 is located inside the housing 38.

[0081] (Unlocking device operation)

[0082] Next, the operation of the unlocking device 22 will be described.

[0083] FIG. 4 shows the movable part 34 of the lock unlocking device 22 in a standby position. FIG. 9 shows the movable part 34 of the lock unlocking device 22 in an unlocked position. As shown in FIGS. 4 and 9, the lock unlocking device 22 is configured to move the movable part 34 from the standby position to the unlocked position. Specifically, the lock unlocking device 22 rotates the shaft of the motor 35 based on an unlock signal input from the control unit 110. The rotation of the shaft of the motor 35 is transmitted to the movable part 34 via the first power transmission unit 31, the second power transmission unit 32, and the third power transmission unit 33. As a result, the movable part 34 rotates around the second shaft 55.

[0084] As shown in FIG. 9 , when the movable part 34 moves from the standby position to the release position, the movable part 34 comes into contact with the latch 9. When the movable part 34 moves toward the release position while in contact with the latch 9, the latch 9 is pushed. This causes the latch 9 to rotate. The latch 9 is disengaged from the latch receiving member 8. In other words, the locking mechanism 40 is released. As described above, by moving from the standby position to the release position, the movable part 34 can apply a force to the locking mechanism 40 so that the locking mechanism 40 is released.

[0085] The lock unlocking device 22 is configured to be able to move the movable part 34 from the release position to the standby position. Specifically, based on an unlock completion signal input from the control unit 110, the lock unlocking device 22 rotates the shaft of the motor 35 in a direction opposite to the rotation direction of the shaft of the motor 35 when moving the movable part 34 from the standby position to the release position.

[0086] (Processing performed by the landing door unlocking system)

[0087] Next, the process executed by the landing door lock release system 100 will be described in detail.

[0088] <Unlock process>

[0089] The landing door lock release system 100 executes an unlocking process. As shown in Fig. 10, in the unlocking process, the control unit 110 determines whether a specific operation has been performed on the landing button 23 (step S10). Specifically, based on a signal output from the landing button 23, the control unit 110 determines whether a specific operation has been performed on the landing button 23. The specific operation is not particularly limited, but is, for example, an operation of pressing either the up button 81 or the down button 82 once and then pressing and holding the same button for one second or more.

[0090] If a specific operation has not been performed on the hall button 23 (NO in step S10), the control unit 110 continues to execute the processing of step S10. If a specific operation has been performed on the hall button 23 (YES in step S10), the control unit 110 determines whether the operation mode of the elevator is the unlock mode (step S20).

[0091] If the operation mode is not the unlocking mode (NO in step S20), the control unit 110 executes the processing of step S10. If the operation mode is the unlocking mode (YES in step S20), the control unit 110 determines whether or not the communication device 21 is connected for communication with the mobile terminal 29 (step S30). Specifically, the control unit 110 determines whether or not each of the communication devices 21 provided at each of the halls 20 on multiple floors is connected for communication with the mobile terminal 29.

[0092] If none of the communication devices 21 provided at the halls 20 on the plurality of floors is connected to the mobile terminal 29 for communication (NO in step S30), the control unit 110 executes the process of step S10.

[0093] If any of the communication devices 21 provided at the landings 20 on each of the plurality of floors is communicatively connected to the mobile terminal 29 (YES in step S30), the control unit 110 acquires the position of the mobile terminal 29 (step S40). Specifically, for example, a signal is output from the communication device 21 communicatively connected to the mobile terminal 29 to the control unit 110. Based on the signal, the control unit 110 determines the floor on which the communication device 21 that output the signal is located. In this way, the control unit 110 acquires information (floor information) about the floor on which the communication device 21 is installed. The floor information is considered to be information about the floor on which the mobile terminal 29 is located.

[0094] Next, the control unit 110 determines whether the floor on which the operated hall button 23 is located is the same as the floor on which the mobile terminal 29 is located, based on the floor information and the signal output from the hall button 23 in step S10 (step S50). If the operated hall button 23 and the mobile terminal 29 are not on the same floor (NO in step S50), the control unit 110 executes the processing of step S10.

[0095] If the operated hall button 23 and the mobile terminal 29 are on the same floor (YES in step S50), the control unit 110 determines whether or not the mobile terminal 29 is on the lowest floor based on the floor information (step S60). From another perspective, the control unit 110 determines whether or not the worker 28 is located on the lowest floor based on the acquired floor information. The lowest floor is the first floor in the building shown in FIG. 1.

[0096] If the mobile terminal 29 is on the lowest floor (YES in step S60), the control unit 110 executes the processing of step S90, which will be described later. If the mobile terminal 29 is on a floor other than the lowest floor (NO in step S60), the control unit 110 acquires the position of the car 90 (step S70). Specifically, the control unit 110 acquires information on the stopping position of the car 90 from the hoisting machine 130.

[0097] After acquiring the stopping position of the car 90, the control unit 110 determines whether or not the position of the car 90 and the position of the mobile terminal 29 satisfy a condition (step S80). The condition is, for example, that either one of the following (Condition 1) or (Condition 2) is satisfied. (Condition 1) The car 90 and the mobile terminal 29 are located on the same floor. (Condition 2) The car 90 is located on the floor one floor below the floor on which the mobile terminal 29 is located.

[0098] If the above condition is not met (NO in step S80), the control unit 110 executes the process of step S10. If the above condition is met (YES in step S80), the control unit 110 executes the process of step S90.

[0099] In step S90, the control unit 110 moves the movable unit 34 of the unlocking device 22 from the standby position to the unlocking position. Specifically, the unlocking control unit 112 outputs an unlocking signal to the unlocking device 22 provided at the hall 20 corresponding to the floor information acquired in step S60. For example, if the mobile terminal 29 is located on the second floor, the control unit 110 outputs an unlocking signal to the unlocking device 22 provided at the hall 20 on the second floor. This unlocks the locking mechanism 40 provided at the hall 20 on the second floor. From another perspective, the control unit 110 outputs the unlocking signal to the unlocking device 22 based on the signal input from the hall button 23, the floor information, the stopping position of the car 90, and information on whether the elevator operation mode is the unlocking mode.

[0100] Next, the control unit 110 activates the alarm unit 24 (step S100). Specifically, the control unit 110 determines that the movable unit 34 has reached the release position based on a signal output from the movable unit position detection unit 36. The control unit 110 may activate the alarm unit 24 when the movable unit 34 has reached the release position. The control unit 110 may continue to activate the alarm unit 24 while the movable unit 34 is located at the release position. The control unit 110 may determine that the movable unit 34 has reached the release position based on a signal output from the interlock switch 42. The control unit 110 may activate the alarm unit 24 when the processing of step S90 is started.

[0101] The control unit 110 determines whether a predetermined time (hereinafter also referred to as the release time) has elapsed since the movable unit 34 moved to the release position (step S110). The release time is not particularly limited, but is, for example, less than 10 seconds. If the release time has not elapsed since the movable unit 34 moved to the release position (NO in step S110), the control unit 110 continues to execute the processing of step S110.

[0102] If the release time has elapsed since the movable part 34 moved to the release position (YES in step S110), the control unit 110 moves the movable part 34 from the release position to the standby position (step S120). Specifically, the control unit 110 outputs an release completion signal to the unlocking device 22. This causes the motor 35 of the unlocking device 22 to move the movable part 34 from the release position to the standby position. In this way, the unlocking process is executed.

[0103] As described above, when the mobile terminal 29 is located on the lowest floor (YES in step S60), the control unit 110 moves the movable unit 34 of the lock release device 22 from the standby position to the release position (step S90). From another perspective, when the worker 28 is located on the lowest floor, the control unit 110 executes a process to release the lock mechanism 40 regardless of the position of the car 90. In other words, the control unit 110 outputs a release signal to the lock release device 22 based on the signal input from the hall button 23 and the floor information.

[0104] In the unlocking process, the order in which steps S10, S20, and S30 are executed is not particularly limited. Specifically, for example, if the answer is YES in step S20, step S10 may be executed, and if the answer is YES in step S10, step S30 may be executed. In this case, if the answer is NO in each of steps S20, S10, and S30, step S20 is executed.

[0105] In the unlocking process, the processes of step S10 and step S20 do not necessarily have to be performed. In this case, the control unit 110 outputs an unlocking signal to the unlocking device 22 based on the floor information, or based on the floor information and the stopping position of the car 90. In the landing door unlocking system 100 according to the present disclosure, the control unit 110 may output an unlocking signal to the unlocking device 22 based on the floor information and at least one of the signal output from the landing button 23, the stopping position of the car 90, and information on whether the operation mode of the elevator is the unlocking mode. Note that if step S10 is not performed, step S50 is also not performed.

[0106] <Abnormality detection processing>

[0107] Next, the abnormality detection process will be described. The landing door lock release system 100 executes the abnormality detection process.

[0108] 11, in the abnormality detection process, the movable part position detection unit 36 ​​(see FIG. 2) determines whether the movable part 34 has moved from the standby position to the release position (step S130). Specifically, the movable part position detection unit 36 ​​determines whether the movable part 34 has moved from the standby position to the release position by detecting the amount of rotation of the shaft of the motor 35.

[0109] If the movable part 34 has not moved from the standby position to the release position (NO in step S130), the movable part position detection unit 36 ​​continues to execute the process of step S130. If the movable part 34 has moved from the standby position to the release position (YES in step S130), the movable part position detection unit 36 ​​determines whether a predetermined time (hereinafter also referred to as the standby time) has elapsed since the movable part 34 moved to the release position (step S140). The standby time is longer than the release time in the above-mentioned unlocking process. The standby time is not particularly limited, but is, for example, 10 seconds.

[0110] If the standby time has not elapsed (NO in step S140), the movable part position detection unit 36 ​​continues to execute the process of step S140. If the standby time has elapsed (YES in step S140), the movable part position detection unit 36 ​​determines whether the movable part 34 is located at the standby position (step S150). Specifically, the movable part position detection unit 36 ​​determines whether the movable part 34 is located at the standby position by detecting the amount of rotation of the shaft of the motor 35.

[0111] If the movable part 34 is located at the standby position (YES in step S150), the landing door unlocking system 100 determines that there is no abnormality in the unlocking device 22 and ends the abnormality detection process. If the movable part 34 is not located at the standby position (NO in step S150), the movable part position detection unit 36 ​​outputs an abnormality signal to the unlocking control unit 112 (step S160). The unlocking control unit 112 determines that there is an abnormality in the unlocking device 22 based on the abnormality signal. From another perspective, if the time that the movable part 34 is located at the unlocked position is equal to or longer than the standby time, the control unit 110 determines that there is an abnormality in the unlocking device 22.

[0112] After step S160, the control unit 110 stops the operation of the unlocking device 22 and the elevator (step S170). Specifically, the unlocking control unit 112 stops the supply of power to the motor 35 of the unlocking device 22. This stops the transmission of power from the motor 35 to the movable unit 34. Therefore, the movable unit 34 moves from the unlocked position to the standby position due to the force acting in the vertical direction 102 from the elastic body 30.

[0113] In step S170, the individual car control unit 111 controls the elevator so that the automatic operation of the elevator is not performed. The automatic operation is an operation for causing the cars 90 to respond sequentially to registered calls. In this way, the abnormality detection process is executed.

[0114] In the above, the processes of steps S130, S140, and S150 are each executed by the movable part position detection unit 36, but these processes may also be executed by the control unit 110. Specifically, in step S130, the control unit 110 may determine whether the movable part 34 has moved from the standby position to the release position based on a signal relating to the position of the movable part 34 output from the movable part position detection unit 36.

[0115] In step S140, the control unit 110 may determine whether a predetermined time (standby time) has elapsed since the movable unit 34 moved to the release position. In step S150, the control unit 110 may determine whether the movable unit 34 is located at the standby position based on a signal relating to the position of the movable unit 34 output from the movable unit position detection unit 36. In step S160, the control unit 110 may determine that there is an abnormality in the lock release device 22 based on the signal relating to the position of the movable unit 34 output from the movable unit position detection unit 36.

[0116] (How to release the locking mechanism of the landing door)

[0117] Next, a description will be given of a method for releasing the locking mechanism 40 of the landing door 4. The method for releasing the locking mechanism 40 of the landing door 4 is carried out by the worker 28.

[0118] First, the maintenance terminal is connected to the control unit 110. If there is a machine room 95 (see FIG. 1), the maintenance terminal and the control unit 110 are connected, for example, by a wire. If there is no machine room 95, the maintenance terminal and the control unit 110 are connected, for example, by either a wired connection or a wireless connection.

[0119] The operation mode of the elevator is set to the unlock mode using the maintenance terminal. The car 90 is operated so that the car 90 stops at a predetermined position. Specifically, for example, the car 90 is operated so that the car 90 stops at the floor one floor below the floor where the worker 28 will board the car 90. The operation of the car 90 may be performed by operating the maintenance terminal or by operating the operation panel inside the car 90.

[0120] Next, worker 28 moves to a floor where he / she will board car 90. Dedicated application software is executed using portable terminal 29 carried by worker 28. Using this application software, communication is established between portable terminal 29 and communication device 21 provided on the floor where worker 28 is located.

[0121] Next, the specific operation described above is performed using the hall button 23 provided on the floor where the worker 28 is located. As a result, the unlocking process described above is executed, and the locking mechanism 40 of the hall door 4 on the floor where the worker 28 is located is released. Thereafter, the hall door 4 on the floor where the worker 28 is located is manually opened.

[0122] Next, the effects of the landing door lock release system 100 according to this embodiment will be described.

[0123] Normally, the locking mechanism 40 of the landing door 4 is released using a dedicated unlocking key. When releasing the locking mechanism 40 using the unlocking key, the worker 28 needs to pay attention not to damage the landing door 4 when inserting the unlocking key into the gap in the landing door 4. Furthermore, depending on the structure of the landing 20, it may be difficult to release the locking mechanism 40 of the landing door 4 using the unlocking key.

[0124] The landing door unlocking system 100 according to this embodiment includes a control unit 110 and an unlocking device 22. The unlocking device 22 is capable of unlocking the locking mechanism 40 based on an unlocking signal input from the control unit 110. Therefore, the worker 28 can unlock the locking mechanism 40 of the landing door 4 without using a dedicated unlocking key. This eliminates the need for the worker 28 to pay attention not to damage the landing door 4 when inserting the unlocking key into the gap of the landing door 4. Furthermore, the locking mechanism 40 of the landing door 4 can be easily unlocked regardless of the structure of the landing 20. Therefore, the locking mechanism 40 of the landing door 4 can be easily unlocked.

[0125] The landing door lock release system 100 according to this embodiment has a communication device 21. Based on communication between the communication device 21 and a mobile terminal 29, the communication device 21 transmits floor information relating to the floor on which the mobile terminal 29 is located to the control unit 110. Based on the floor information, the control unit 110 outputs an unlock signal to the lock release device 22 provided in the landing 20 corresponding to the floor information. This makes it possible to prevent the lock mechanism 40 of the landing door 4 of a floor on which no worker 28 is present from being released.

[0126] Normally, when the lock mechanism 40 of the landing door 4 is released using an unlocking key, the landing door 4 can be opened regardless of the position of the car 90. For this reason, the worker 28 needs to know the floor on which the car 90 is stopped when opening the landing door 4. According to the landing door unlocking system 100 according to this embodiment, the control unit 110 outputs an unlock signal to the lock release device 22 based on the floor information and the stopping position of the car 90. This reduces the burden on the worker 28 that is caused by knowing the floor on which the car 90 is stopped.

[0127] The landing door unlocking system 100 according to this embodiment has a landing button 23. When the landing button 23 is pressed, the landing button 23 outputs a signal to the control unit 110. The control unit 110 outputs an unlock signal to the lock release device 22 based on the signal output from the landing button 23, the floor information, and the stop position of the car 90. This allows the control unit 110 to determine whether or not a signal is being output from the landing button 23 provided at the landing 20 corresponding to the floor information. Therefore, when the landing 20 at which the worker 28 operates the landing button 23 is different from the landing 20 at which the mobile terminal 29 is located, it is possible to prevent the landing door 4 from being opened.

[0128] According to the landing door unlocking system 100 of this embodiment, the operation mode of the elevator can be set to a normal operation mode or an unlocking mode. When the operation mode of the elevator is the normal operation mode, the control unit 110 does not output an unlocking signal to the unlocking device 22. Therefore, when the operation mode of the elevator is the normal operation mode, it is possible to prevent the landing door 4 from being opened.

[0129] There may be cases where the movable part 34 of the unlocking device 22 does not return from the unlocked position to the standby position due to a malfunction of the unlocking device 22. According to the landing door unlocking system 100 of this embodiment, if the time that the movable part 34 of the unlocking device 22 is positioned at the unlocked position is equal to or longer than a predetermined time (standby time), the control unit 110 determines that there is an abnormality in the unlocking device 22. Therefore, it is possible to detect that the movable part 34 of the unlocking device 22 has been positioned at the unlocked position for an excessively long time.

[0130] The landing door lock release system 100 according to this embodiment has a notification unit 24. The notification unit 24 notifies the worker 28 that the lock mechanism 40 has been released by the lock release device 22. Therefore, the worker 28 can easily understand that the lock mechanism 40 has been released by the lock release device 22.

[0131] Although the configuration in which the communication device 21 transmits floor information to the control unit 110 has been described above, the configuration of the landing door unlocking system 100 according to the present disclosure is not limited to the above configuration. The mobile terminal 29 may transmit floor information to the control unit 110. Specifically, when a communication connection between the communication device 21 and the mobile terminal 29 is established, the mobile terminal 29 may transmit floor information to the control unit 110 via a communication network (for example, the Internet). In the landing door unlocking system 100 according to the present disclosure, at least one of the communication device 21 and the mobile terminal 29 may transmit floor information to the control unit 110. The control unit 110 may be capable of communicating with at least one of the communication device 21 and the mobile terminal 29. When the mobile terminal 29 transmits floor information to the control unit 110, the communication device 21 does not have to be able to output a signal to the control unit 110. The communication device 21 may be a transmitter (beacon).

[0132] Although the configuration in which the landing door 4 is of a double-swing type has been described above, the landing door 4 may also be of a single-swing type. In the above, the notification unit 24 is provided in the landing operating panel 70, but the notification unit 24 may also be provided in, for example, the unlocking device 22. The notification unit 24 may also be a maintenance terminal. Specifically, the maintenance terminal may be capable of displaying on a screen of the maintenance terminal whether the interlock switch 42 is in an ON state or an OFF state. In this way, the maintenance terminal notifies the worker 28 that the lock mechanism 40 has been released by the unlocking device 22.

[0133] The embodiments disclosed herein are to be considered as illustrative in all respects and not restrictive. The scope of the present disclosure is defined by the claims, not by the above description, and is intended to include meanings equivalent to the claims and all modifications within the scope thereof.

[0134] Various aspects of the present disclosure are summarized below as appendices. (Appendix 1) A landing door lock release system that releases a lock mechanism that prevents an elevator landing door from being manually opened, A control unit; a communication device provided at each landing of a plurality of floors at which the elevator car can stop; a lock release device that is provided at each of the landings of the plurality of floors and that is capable of releasing the lock mechanism based on a release signal input from the control unit; based on communication between the communication device and a mobile terminal carried by the worker, at least one of the communication device and the mobile terminal transmits floor information relating to a floor on which the mobile terminal is located among the plurality of floors to the control unit; The control unit outputs the release signal to the lock release device provided at the landing corresponding to the floor information based on the floor information. (Appendix 2) The landing door unlocking system described in Appendix 1, wherein the control unit outputs the unlocking signal to the unlocking device based on the floor information and the stopping position of the car. (Appendix 3) Further provided is a landing button provided at each of the landings on the plurality of floors, The hall button outputs a signal to the control unit when the hall button is pressed, The landing door unlocking system described in Appendix 2, wherein the control unit outputs the unlocking signal to the unlocking device based on the signal, the floor information, and the stopping position of the car. (Appendix 4) The operation mode of the elevator can be set to a normal operation mode or an unlock mode; When the operation mode of the elevator is the unlocking mode, the control unit is capable of outputting the unlocking signal to the unlocking device, 4. The landing door lock release system according to claim 1, wherein when the operation mode of the elevator is the normal operation mode, the control unit does not output the release signal to the lock release device. (Appendix 5) the unlocking device has a movable part that can apply force to the locking mechanism so that the locking mechanism is unlocked by moving from a standby position to a release position, 5. The landing door lock release system according to any one of Supplementary Note 1 to Supplementary Note 4, wherein, when the time during which the movable part is positioned at the release position is equal to or longer than a predetermined time, the control unit determines that there is an abnormality in the lock release device. (Appendix 6) 6. The landing door lock release system according to any one of Supplementary Note 1 to Supplementary Note 5, further comprising a notification unit that notifies the worker that the lock mechanism has been released by the lock release device. [Explanation of symbols]

[0135] 1 landing entrance / exit, 2 hanger case, 3 door rail, 4 landing door, 5 door panel, 6 door hanger, 7 door roller, 8 latch receiving member, 9 latch, 10 fixed roller, 11 movable roller, 20 landing, 21 communication device, 22 lock release device, 23 landing button, 24 notification unit, 25 main unit, 26 first control cable, 27 second control cable, 28 worker, 29 portable terminal, 30 elastic body, 31 first power transmission unit, 32 second power transmission unit, 33 third power transmission unit, 34 movable unit, 35 motor, 36 movable unit position detection unit, 37 dust cover, 38 housing, 39 cable, 40 lock mechanism, 42 interlock switch, 43 fixed contact, 44 movable contact, 45 plate member, 46 door movable unit, 47 door fixed unit, 49 Fastening screw, 51 first gear, 52 first shaft, 53 first bracket, 54 second gear, 55 second shaft, 56 second bracket, 58 nut, 59 opening, 61 inner frame, 62 outer frame, 63 screw, 70 platform control panel, 71 indicator, 72 panel, 81 up button, 82 down button, 90 car, 91 rope, 92 counterweight, 94 car door, 95 machine room, 96 pit, 98 elevator shaft, 100 platform door lock release system, 101 width direction, 102 vertical direction, 110 control unit, 111 each car control unit, 112 lock release control unit, 120 platform device, 130 hoisting machine.

Claims

1. A landing door lock release system that releases a lock mechanism that prevents an elevator landing door from being manually opened, A control unit; a communication device provided at each landing of a plurality of floors at which the elevator car can stop; a lock release device that is provided at each of the landings of the plurality of floors and that is capable of releasing the lock mechanism based on a release signal input from the control unit; based on communication between the communication device and a mobile terminal carried by the worker, at least one of the communication device and the mobile terminal transmits floor information relating to a floor on which the mobile terminal is located among the plurality of floors to the control unit; The control unit outputs the release signal to the lock release device provided at the landing corresponding to the floor information based on the floor information.

2. The landing door unlocking system according to claim 1 , wherein the control unit outputs the unlock signal to the unlocking device based on the floor information and the stopping position of the car.

3. Further provided is a landing button provided at each of the landings on the plurality of floors, The hall button outputs a signal to the control unit when the hall button is pressed, The landing door unlocking system according to claim 2 , wherein the control unit outputs the unlocking signal to the unlocking device based on the signal, the floor information, and the stopping position of the car.

4. The operation mode of the elevator can be set to a normal operation mode or an unlock mode; When the operation mode of the elevator is the unlocking mode, the control unit is capable of outputting the unlocking signal to the unlocking device, 4. The landing door lock release system according to claim 1, wherein when the operation mode of the elevator is the normal operation mode, the control unit does not output the release signal to the lock release device.

5. the unlocking device has a movable part that can apply force to the locking mechanism so that the locking mechanism is unlocked by moving from a standby position to a release position, 4. The landing door lock release system according to claim 1, wherein, when a time during which the movable part is positioned at the release position is equal to or longer than a predetermined time, the control unit determines that an abnormality has occurred in the lock release device.

6. The landing door lock release system according to claim 1 , further comprising a notification unit that notifies the worker that the lock mechanism has been released by the lock release device.

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