JP5705069B2 - Connector lock confirmation system, connector lock detection device, and connector lock confirmation method - Google Patents

Description

  The present invention relates to a connector locking confirmation system for an operator to confirm that locking has been performed in a connecting operation of an automatic connector for connecting a railway vehicle.

  In general, an automatic coupler of a railway vehicle widely used in Japan is called an open-type coupler. As shown in FIG. 8, the automatic coupler 1 has a W-shaped tip (substantially concave shape). ), A knuckle (elbow) 4 pivotally supported by a knuckle pin 3 at one end 2a of the connector cylinder 2, and a lock 5 for fixing the knuckle 4 (see FIG. 9 to FIG. 11), a lock lift 6 that operates the lock 5, a knuckle opening 7 that operates the knuckle 4 in conjunction with the operation of the lock 5 (see FIGS. 10 and 11), and a position above the coupler body 2. A release lever 8 that is rotatably supported and a suspension link 9 having an upper end loosely fitted to the release lever 8 and a lower end loosely fitted to the upper end of the locker 6 are provided (FIG. 3 of Non-Patent Document 1). 6, Non-Patent Document 2, FIGS. 1, 2, 4 to 7 of Patent Document 1, and FIGS. 1 to 9 of Patent Document 2). An extending portion 5a for confirming the position of the lock 5 protrudes from the lower portion of the lock 5 (see FIGS. 10 and 11).

  Further, as shown in FIG. 8, the release lever 8 is composed of three parts: a crankshaft portion 8a, a lever lever portion 8b, and an operation shaft portion 8c. The straight rod-shaped crankshaft portion 8 a is rotatably supported in the bearing holes of the link bearing portions 10 and 10 fixed to the connector body 2. The lever lever portion 8b is formed by vertically bending the base end side of the crankshaft portion 8a. The operation shaft portion 8c is bent at the distal end side of the crankshaft portion 8a, and a distal end portion parallel to the crankshaft portion 8a is formed to be eccentric with respect to the crankshaft portion 8a.

  The automatic coupler 1 has three states: a locked state, a locked state, and a knuckle (elbow) opened state (see FIGS. 5 to 9 of Patent Document 2). The locked state is a state where the knuckle 4 is closed and the lock 5 is inserted and fixed during connection or non-connection. The locked state is a state in which the lock 5 is released by operating the release lever 8 from the state where the vehicle is connected, the knuckle 4 becomes free, and the vehicle can be separated. The knuckle (elbow) open state is a state in which the knuckle 4 is open and connectable.

  9 is a view showing each state of the automatic coupler 1, FIG. 10 is a cross-sectional view taken along the line AA in FIG. 9, and FIG. 11 is cut along the line BB in FIG. It is arrow sectional drawing of each state at the time. FIG. 9A shows a locked state when not connected, FIG. 9B shows a knuckle open state, and FIG. 9C shows a locked state when connected. 10A shows a locked state, FIG. 10B shows a state when the lock 5 reaches the maximum height position by the lift 6, and FIG. 10C shows a locked state. FIG. 11A shows a locked state, and FIG. 11B shows a locked state.

  In the locked state when not connected, the knuckle 4 is fixed by the lock 5 as shown in FIG. At this time, the lock 5 is at the lowest position as shown in FIGS. 10 (a) and 11 (a), and the lock 5 is located in the gap between the elbow butt of the knuckle 4 and the lock chamber wall of the coupler body 2. The entering knuckle 4 is in a fixed state. In the locking position, the extended portion 5a at the lower end of the lock 5 is in a state of protruding from the opening on the lower surface of the coupler body 2, and the locking portion is in a locked state by visually confirming the protrusion of the extended portion 5a. Can be confirmed.

  From this state, the release lever 8 is turned and the lock 6 is pulled up by the suspension link 9. As the release lever 8 rotates, the lock 6 is moved from the locked position shown in FIGS. 10 (a) and 11 (a) to the maximum height shown in FIG. 10 (b), as shown in FIG. It moves to the lock position in FIG. Accordingly, the lock 5 is also pulled up to the lock-reserved position in conjunction with it. Thereby, the elbow buttocks of the knuckle 4 are released, and the knuckle 4 is in a free state. In this lock-retained position, the extended portion 5a at the lower end of the lock 5 is housed in the lock chamber inside the connector barrel 2.

  When the locking state is set, the elbow butt of the knuckle 4 of the left and right automatic couplers 1 is kicked by the knuckle opening 7, and the knuckle (elbow) opening state as shown in FIG. 9B is obtained. In this state, the left and right vehicles are brought close to each other, and the knuckles 4 and 4 of the left and right automatic couplers 1 are engaged as shown in FIG. Then, the release lever 8 is turned in the reverse direction again, and the lock 6 is dropped by its own weight by the suspension link 9. As a result, as shown in FIG. 9C, the lock 5 enters the gap between the elbow butt of the knuckle 4 and the lock chamber wall of the coupler body 2, and the knuckle 4 is fixed, and is in a locked state.

JP 2002-308094 A JP-A-11-278265 Japanese Utility Model Application No. 46-106068 (Japanese Utility Model Publication No. 48-61507) Japanese Patent Application No. 55-155974 (Japanese Utility Model Publication No. 57-77076) Japanese Utility Model No. 51-15922 (Japanese Utility Model Publication No. 52-108709) JP-A-8-127340

Masayuki Miyamoto, “Science of Illustrated Railways”, Kodansha, June 2006, pp.63-69. Hiroshi Maruyama, “A book that makes railway science and travel fun”, Kodansha, July 1980, pp.126-153.

  As described above, in the connecting operation in the conventional automatic coupler 1, after the lever lever portion 8b is operated so that the lock lifter 6 is in the locking position, the extension portion 5a below the lock 5 is connected to the coupler. By confirming that it protrudes from the lower surface of the trunk | drum 2, it confirms that connection was performed reliably. This connection confirmation work is extremely important for preventing accidents.

  In particular, since the trolley for transporting molten steel and molten iron is transported between factories without stopping for 24 hours, the connection / release of the coupler is performed several tens of times a day. Further, in addition to working in areas other than insufficient illumination, rainy weather, and flat parts, the working environment of the connecting lock body is also difficult to visually check due to dust and the like. When the locked state of the connecting lock cannot be determined only by visual observation, entry into the rail is required. Furthermore, no braking device is permanently installed on the bogie body side, and the entire vehicle is stopped only by the braking force on the locomotive side, and the bogie cannot be stopped when the connection is poor. In the past, there have been cases of bogie runaway due to poor bogie connection.

  The connection confirmation work requires a peek at the lower surface of the automatic coupler 1, which is difficult for the operator. In addition, in nighttime connection work, the vicinity of the automatic coupler 1 is a portion that is difficult to be exposed to illumination light, so it is often dark, and the operator has to bother with a portable light to check. For this reason, workability is poor, and there is a possibility of causing a human error that the operator forgets to confirm.

  FIG. 12 is a photograph of an automatic coupler that is actually used, but the extended portion 5a that protrudes from the lower surface of the coupler cylinder 2 is small in structure and is not easily noticeable, and the position is also difficult for the operator to see. You can see that

  Accordingly, an object of the present invention is to provide a coupler locking confirmation system and a coupler locking detection device that enables an operator to easily confirm that locking has been performed in a connecting operation of an automatic coupler of a railway vehicle. It is to provide.

The first configuration of the connector locking confirmation system according to the present invention is that the knuckles are connected by engaging each other, and when the lock is moved to the locking position, the knuckle is locked and moved to the locking position. In the coupler where the knuckle is unlocked, the coupler locking confirmation system for confirming the locking of the coupler,
The body of the coupler;
A magnet,
A magnetic sensor that converts the magnetic field of the magnet into an electrical signal;
Magnetic detection means for detecting the magnetic field of the magnet by the magnetic sensor and outputting a magnetic detection signal indicating the presence or absence of magnetic field detection;
A coupler transmitting detection device comprising: a wireless transmission unit that wirelessly transmits the magnetic detection signal;
A wireless receiver for receiving the magnetic detection signal transmitted from the wireless transmitter of the coupler locking detection device;
A portable notification device comprising: a notification unit that notifies the presence or absence of locking of a coupler based on the magnetic detection signal received by the wireless reception unit;
One of the magnet and the magnetic sensor is arranged so as to move in conjunction with a lock, and the other is fixed to the main body of the coupler, and the lock is located at the lock position. The magnet and the magnetic sensor are sometimes opposed to each other, and the magnet and the magnetic sensor are arranged so as to be separated from each other when the magnet and the magnetic sensor are opposite to each other.

  According to this configuration, when the lock is moved to the locking position, the magnet of the coupler locking detection device faces the magnetic sensor, and therefore the magnetic detection means outputs a magnetic detection signal. This magnetic detection signal is wirelessly transmitted from the transmission unit to the portable notification device. When the mobile notification device receives the magnetic detection signal, the notification unit notifies the operator of unlocking / locking based on the magnetic detection signal. Thereby, the worker can easily confirm that the locking has been performed only by confirming the notification of the portable notification device.

  Here, as a notification unit of the portable notification device, a sound notification unit that notifies the reception of the magnetic detection signal by sound, a light notification unit that notifies by light such as lighting of an LED, or a vibration that is notified by vibration (vibration). Notification means or the like can be used.

According to a second configuration of the coupler locking confirmation system of the present invention, in the first configuration, the coupler locking detection device supplies power to the magnetic sensor, the magnetic detection means, and the transmitter. With
The transmission unit is configured to intermittently transmit the magnetic detection signal.

  According to this configuration, the coupler locking detection device can intermittently transmit the magnetic detection signal, thereby suppressing power consumption in wireless transmission and extending the battery life.

  Here, although the interval of intermittent transmission of the magnetic detection signal is not particularly specified in the present invention, it is usually preferable to set it to about 0.3 to 3 seconds. This is because if the intermittent transmission interval is shorter than 0.3 seconds, the battery is consumed too quickly, and if the interval is longer than 3 seconds, the waiting time for the operator to check the LED and voice becomes too long.

  According to a third configuration of the coupler locking confirmation system of the present invention, in the first or second configuration, the notification unit of the portable notification device is in a locked state when the magnetic detection signal represents magnetic field detection. It is characterized by comprising a display device for displaying that there is a lock state when the magnetic detection signal indicates non-detection of the magnetic field.

  According to this configuration, by displaying on the display device of the portable informing device whether it is in the locked state or in the locked state, it is possible to prevent misidentification by the operator and further improve the safety of the connecting work.

  Here, an LED lamp, an LED character display board, a liquid crystal character display board, etc. can be used as a display apparatus.

  According to a fourth configuration of the coupler locking confirmation system according to the present invention, in any one of the first to third configurations, the notification unit of the portable notification device is configured such that the magnetic detection signal represents magnetic field detection. An audio device is provided that outputs a sound indicating that the lock is engaged and outputs a sound indicating that the lock is in a locked state when the magnetic detection signal indicates non-detection of the magnetic field.

  According to this configuration, it is possible to reliably prevent the operator from forgetting to confirm the locked state by outputting a voice indicating whether the locked state or the locked state is provided by the audio device.

According to a fifth configuration of the connector locking confirmation system according to the present invention, in any one of the first to fourth configurations, the magnetic sensor is located between the magnet and the magnet when the lock is located at the locking position. Is disposed at a position where the distance becomes 0.5 cm to 5 cm,
The transmission unit and the wireless reception unit have a maximum distance of 5 m or less that allows wireless communication.

  According to this configuration, by setting the communication distance between the coupler locking detection device and the portable notification device to 5 m or less (usually 1 m to 5 m), from the coupler locking detection device of the automatic coupler during the coupling work. It is possible to prevent only the magnetic detection signal of the other automatic coupler from being received by interfering with the magnetic detection signal from the coupler lock detection device of the other automatic coupler.

  Here, the distance between the magnetic sensor and the magnet when the lock is locked is set to 0.5 cm to 5 cm so that the magnetic sensor can reliably detect the magnetic field of the magnet in any environment. Because. If the distance is longer than 5 cm, there is a high possibility that the magnetic sensor will not be able to detect the magnetic field when dirt or the like is attached. If the distance is closer than 0.5 cm, the magnetic sensor and the magnet may collide and be damaged by some external impact. Because it becomes higher. The maximum distance that can be wirelessly communicated is 5 m or less. When the communication distance is longer than 5 m, the magnetic detection signal from the coupler lock detection device of the automatic coupler of the railway vehicle that is parked adjacently. This is because there is a higher possibility that the message will be received in error. Since the position where the operator operates the lever is usually in the range of 1 m to 2 m from the coupler lock, it is more preferable that the maximum communication distance is 1 m to 2 m.

The connector locking detection device according to the present invention is connected by knuckles being engaged with each other, and the knuckle is locked when the lock is moved to the lock position, and the knuckle is moved when the lock is moved to the lock position. In the connecting operation of the coupler to be unlocked, a coupler locking detection device for detecting the locking state of the coupler,
The body of the coupler;
A magnet,
A magnetic sensor that converts the magnetic field of the magnet into an electrical signal;
Magnetic detection means for detecting the magnetic field of the magnet by the magnetic sensor and outputting a magnetic detection signal indicating the presence or absence of magnetic field detection;
A wireless transmission unit that wirelessly transmits the magnetic detection signal,
One of the magnet and the magnetic sensor is arranged so as to move in conjunction with a lock, and the other is fixed to the main body of the coupler, and the lock is located at the lock position. The magnet and the magnetic sensor are sometimes opposed to each other, and the magnet and the magnetic sensor are arranged so as to be separated from each other when the magnet and the magnetic sensor are opposite to each other.

  With this configuration, it is possible to provide a coupler locking detection device that can be used in the coupler locking confirmation system of the first configuration.

The connector locking confirmation method according to the present invention is such that the knuckles are connected by engaging each other, and the knuckle is locked when the lock is moved to the lock position, and the knuckle is moved when the lock is moved to the lock position. Is a connector locking confirmation method for confirming the locking of the coupler in the coupling operation of the coupler to be unlocked,
Of the magnetic sensor for converting the magnetic field of the magnet and the magnet into an electric signal, one of them, arranged so as to move in conjunction with the tablets, while the, fixed to the body of the coupler, the tablets Tablets hooking position The magnet and the magnetic sensor are opposed to each other when positioned at the position, and the magnet and the magnetic sensor are spaced apart when positioned at the opposite position,
Detecting the magnetic field of the magnet with the magnetic sensor, wirelessly transmitting a magnetic detection signal by a wireless transmission device,
The magnetic detection signal is received by a portable notification device that can be carried by an operator, and the notification means notifies the presence or absence of locking of the coupler based on the magnetic detection signal.

  With this configuration, the operator can easily confirm that the locking has been performed only by confirming the notification of the portable notification device.

  As described above, according to the present invention, the magnet that moves in conjunction with the lock and the magnetic sensor that detects that the magnet has moved to the locking position are provided, and the magnetic detection signal of the magnetic sensor is displayed by the operator. By transmitting wirelessly to a portable portable notification device and notifying whether the lock of the automatic coupler is in the locked position in the portable notification device, the operator only checks the notification of the portable notification device. Thus, it can be easily confirmed that the locking has been performed. As a result, confirmation work at night becomes easy and workability is improved, and human errors such as the operator forgetting to check the lock can be effectively prevented.

It is sectional drawing showing the structure of the automatic coupler provided with the coupler locking detection apparatus which concerns on Example 1 of this invention. FIG. 2 is a block diagram illustrating a circuit configuration of an active RFID 22 in FIG. 1. It is a figure showing the whole structure of the connector locking confirmation system which concerns on Example 1. FIG. 1 is an external view of a portable notification device 30. FIG. 3 is a block diagram illustrating a circuit configuration of a portable notification device 30. FIG. It is a flowchart showing operation | movement of the coupling device locking confirmation system which concerns on Example 1. FIG. It is a figure showing the whole structure of the connector locking confirmation system which concerns on Example 2 of this invention. It is a perspective view of the conventional automatic coupler (release type coupler). It is a figure which shows each state of the automatic coupler 1. FIG. It is arrow sectional drawing of each state when cut by the AA line of FIG. It is arrow sectional drawing of each state when cut by the BB line of FIG. It is the photograph of the automatic coupler actually used.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

  FIG. 1 is a cross-sectional view illustrating a configuration of an automatic coupler including a coupler lock detection device according to Embodiment 1 of the present invention. FIG. 1A shows a locked state, and FIG. 1B shows a locked state. In FIG. 1, the automatic coupler 1 includes a coupler body (connector body) 2, a knuckle pin 3, a knuckle 4, a lock 5, an extension part 5 a, a lock lift 6, and a knuckle opening 7. It is the same as the corresponding code | symbol part of FIG.

  The automatic coupler 1 according to this embodiment includes a magnet 21 at the lower end of the extension portion 5 a of the lock 5. A mounting portion 23 is extended on the lower surface of the connector body 2, and an active RFID 22 is fixed to the tip of the mounting portion 23. The active RFID 22 faces the magnet 21 when the lock 5 is positioned at the locking position (FIG. 1A), and is separated from the magnet 21 when positioned at the key holding position (FIG. 1B). It is arranged. Inside the active RFID 22, a magnetic sensor 24 for detecting the magnetic field generated by the magnet 21, magnetic detection means 25 for detecting the magnetic field of the magnet 21 by the magnetic sensor 24 and outputting a magnetic detection signal, and wireless transmission of the magnetic detection signal A transmitter 26 and a battery 27 are mounted (see FIG. 2). When the lock 5 is positioned at the “locking position” (FIG. 1A), the distance between the magnet 21 and the magnetic sensor 24 is about 3 to 5 cm, and the lock 5 is in the “locking position” (FIG. 1). When located in (b)), the distance between the magnet 21 and the magnetic sensor 24 is 10 cm or more. Thereby, when the lock 5 is in the “locking position”, the magnetic sensor 24 detects a magnetic field, and when the lock 5 is in the “locking position”, the magnetic sensor 24 does not detect the magnetic field.

  The active RFID 22 has a waterproof / dustproof specification equivalent to IP54. The battery 27 is preferably a button battery from the viewpoint of weight reduction and size reduction. The active RFID 22 may be a disposable type as a button battery built-in type. Further, the active RFID 22 and the magnet 21 are fixed with sufficient strength to withstand vibration, and can be attached and replaced.

  FIG. 2 is a block diagram showing a circuit configuration of the active RFID 22 of FIG. The active RFID 22 includes a magnetic sensor 24, magnetic detection means 25, a wireless transmission unit 26, and a battery 27. The magnetic sensor 24 detects a magnetic field created by the magnet 21 and converts it into an electrical signal. As the magnetic sensor 24, a magnetic switch, a Hall element, a magnetoresistive element, or the like can be used. The magnetic detection means 25 detects the magnetic field of the magnet 21 by the magnetic sensor 24 and outputs a magnetic detection signal. The magnetic detection means 25 is configured using a microcomputer. The “magnetism detection signal” is a signal indicating either a magnetic detection state indicating that the magnetic sensor 24 has detected a magnetic field or a magnetic non-detection state indicating that the magnetic sensor 24 has not detected a magnetic field. It is. The wireless transmission unit 26 wirelessly transmits the magnetic detection signal output from the magnetic detection unit 25 to the portable notification device, and wirelessly transmits an identification code (ID) uniquely assigned to the active RFID 22 to the portable notification device. The battery 27 is a power source that supplies power to the magnetic sensor 24, the magnetic detection unit 25, and the wireless transmission unit 26.

  In addition, the transmission of the magnetic detection signal and the identification code by the wireless transmission unit 26 is intermittently performed in order to suppress the power consumption of the battery 27. From this viewpoint, if the intermittent transmission interval is short, the battery will be consumed too quickly, and if the interval is too long, the waiting time for the operator to check the LED and voice will be too long. The time is preferably 0.3 to 3 seconds.

  FIG. 3 is a diagram illustrating the overall configuration of the coupler locking confirmation system according to the first embodiment. The coupler locking confirmation system includes a magnet 21 and an active RFID 22 attached to the automatic coupler 1 and a portable alarm device 30 carried by the worker W. The magnetic detection signal transmitted from the active RFID 22 is received by the portable notification device 30.

  FIG. 4 is an external view of the portable notification device 30. The portable notification device 30 includes a casing 31, LED display lamps 32 a, 32 b, 32 c, a speaker 33, a power supply switch 34, and an audio output button 35. The casing 31 is made of plastic and has a substantially rectangular parallelepiped shape. In addition, a mounting cover (not shown) that can be mounted on a control controller (telecom) that wirelessly controls the railway locomotive is provided. The LED display lamps 32a, 32b, and 32c are lamps for displaying the reception of the magnetic detection signal, and are arranged in parallel on the front side surface of the casing 31, and red, yellow, and blue LEDs are used, respectively. . The speaker 33 is provided in the vicinity of the center of the front side surface of the casing 31, and notifies the reception of the magnetic detection signal by voice. The power switch 34 is a toggle switch for turning on / off the power of the portable notification device 30 and switching the function of the portable notification device 30. With this power switch 34, the function of the portable alarm device 30 can be switched to either a rolling operation or a connection confirmation operation. When the rolling work is selected, the portable notification device 30 becomes a transmitter, and when the connection confirmation work is selected, the portable notification device 30 becomes a receiver. In addition, when switching functions, guidance is provided by voice guidance. In addition, since the present invention is not directly related to the function of the rolling work, description thereof is omitted below. The audio output button 35 is a switch for turning on / off the speaker 33 and also serves as a volume of the speaker 33.

  Note that the communicable distance (maximum communication distance) between the active RFID 22 and the portable notification device 30 is 5 m or less by default. Thereby, it can suppress that the signal from active RFID22 of the automatic coupler 1 adjacent is mixed and received.

  FIG. 5 is a block diagram illustrating a circuit configuration of the portable notification device. The LED display lamp 32 represents the three LED display lamps 32a, 32b, and 32c of FIG. The speaker 33 is the same as that shown in FIG. The wireless reception unit 36 receives a magnetic detection signal and an identification code transmitted from the active RFID 22. The control unit 36 is configured by a microcomputer, and outputs a notification signal to the voice synthesis unit 38 when the wireless reception unit 36 receives a magnetic detection signal, and performs lighting control of the LED display lamps 32a, 32b, and 32c. . When the notification signal is input, the voice synthesis unit 38 outputs a voice guide signal set in advance according to the notification signal to the speaker 33. Thereby, a voice guide is notified from the speaker 33. The battery 39 is a power source that supplies power to the LED display lamps 32, 32a, 32b, and 32c, the speaker 33, the wireless reception unit 36, the control unit 37, and the voice synthesis unit 38. Any battery 27 may be used, but from the viewpoint of resource saving, it is preferable to use a rechargeable dry battery.

  When the control unit 36 starts to receive a new identification code, it outputs a reception start signal indicating that it has entered the communicable area to the voice synthesis unit 38. When the reception start signal is input, the voice synthesizer 38 notifies the speaker 33 that it has entered the communicable area through a voice guide (for example, “I entered the communication area”).

  The operation of the coupler lock confirmation system of the present embodiment configured as described above will be described below. FIG. 6 is a flowchart illustrating the operation of the coupler locking confirmation system according to the first embodiment.

  When starting the connection confirmation work, first, in step S1, the operator W turns on the power switch 34 of the portable alarm device 30.

  Next, in step S2, the control unit 37 of the mobile notification device 30 monitors the output from the wireless reception unit 36 for a certain period of time, and determines whether the magnetic detection signal and the ID signal are received within the monitoring time. When the magnetic detection signal is not received, in step S3, all the LED display lamps 32a, 32b, 32c are turned off, and the process returns to step S2. On the other hand, when the magnetic detection signal and the ID signal are received within the monitoring time, the process proceeds to the next step S4.

  In step S4, the control part 37 of the portable alerting | reporting apparatus 30 determines whether several ID signal was received. If only one ID signal is received, the process proceeds to step S8. If a plurality of ID signals are received, the process proceeds to the next step S5.

  In step S5, the control unit 37 of the portable notification device 30 blinks the yellow LED display lamp 32b and turns off the other LED display lamps 32a and 32c to display that a plurality of ID signals have been received. . In step S6, the control unit 37 determines whether or not the audio output button 35 is in the on state. If the sound output button 35 is in the on state, the control unit 37 approaches the operator W to the automatic coupler to be operated in step S7. A voice guide prompting the user (for example, “out of communicable area”) is notified, and the process returns to step S2. Thereby, the operator W is prompted to approach the automatic coupler to be operated. On the other hand, if the audio output button 35 is in the OFF state, the process returns to step S2 without doing anything.

  When only one ID signal is received in step S4, in step S8, the control unit 37 determines whether the received magnetic detection signal is “magnetic detection state” or “magnetic non-detection state”. If it is “magnetic detection state”, the process proceeds to step S9, and if it is “magnetic non-detection state”, the process proceeds to step S12.

  In the case of the “magnetic detection state” in step S8, in step S9, the control unit 37 turns on the blue LED display lamp 32c and turns off the other LED display lamps 32a and 32b. Display that there is. Thereby, the operator W can confirm by visually observing the lamp color that the automatic coupler to be operated is in the “locked state”. In step S10, the control unit 37 determines whether or not the audio output button 35 is in an on state. Information is provided by a guide (for example, “connected”), and the process returns to step S2. As a result, the operator W can accurately confirm by voice that the automatic coupler to be operated is in the “locked state”. On the other hand, if the audio output button 35 is in the OFF state, the process returns to step S2 without doing anything.

  In the case of the “magnetic non-detection state” in step S8, in step S12, the control unit 37 turns on the red LED display lamp 32a and turns off the other LED display lamps 32b and 32c. Is displayed. Thereby, the operator W can confirm by visually observing the lamp color that the automatic coupler to be operated is in the “key holding state”. Then, in step S13, the control unit 37 determines whether or not the audio output button 35 is in an on state. Information is provided by a guide (for example, “not connected”), and the process returns to step S2. As a result, the operator W can accurately confirm by voice that the automatic coupler to be operated is in the “key holding state”. On the other hand, if the audio output button 35 is in the OFF state, the process returns to step S2 without doing anything.

  As described above, according to the coupler locking confirmation system of the present embodiment, the operator W confirms the lighting of the LED display lamps 32a, 32b, 32c of the portable notification device 30 or the notification by the voice guide output from the speaker 33. It is possible to easily confirm whether the automatic coupler 1 is in the “locking state” or the “key holding state”. For this reason, it is easy to check the connection at night and the workability is improved, and it is possible to effectively prevent human error such as the operator W forgetting to check the connection.

  FIG. 7 is a diagram illustrating the overall configuration of the coupler locking confirmation system according to the second embodiment of the present invention. The structure of the coupler locking confirmation system of the present embodiment is basically the same as that shown in FIG. 3 except that the arrangement of the magnet 21 and the active RFID 22 is reversed. Even with such a configuration, it is possible to obtain the same effects as those of the first embodiment.

DESCRIPTION OF SYMBOLS 1 Automatic coupler 2 Connector body 2a, 2b End part 3 Knuckle pin 4 Knuckle 5 Lock 5a Extension part 6 Locking 7 Knuckle opening 8 Release lever 8a Crank shaft part 8b Lever lever part 8c Operation shaft part 9 Suspension link 10, 10 Link bearing 21 Magnet 22 Active RFID
23 Attaching part 24 Magnetic sensor 25 Magnetic detection means 26 Wireless transmission part 27 Battery 30 Portable alarm device 31 Casing 32, 32a, 32b, 32c LED display lamp 33 Speaker 34 Power switch 35 Audio output button 36 Wireless reception part 37 Control part 38 Speech synthesis unit 39 Battery W Worker

Claims (7)

In the coupler in which the knuckles are connected by engaging each other and the knuckle is locked when the lock is moved to the locking position, and the knuckle is unlocked when the lock is moved to the locking position. It is a coupling lock confirmation system for confirming the lock of the container,
The body of the coupler;
A magnet,
A magnetic sensor that converts the magnetic field of the magnet into an electrical signal;
Magnetic detection means for detecting the magnetic field of the magnet by the magnetic sensor and outputting a magnetic detection signal indicating the presence or absence of magnetic field detection;
A coupler transmitting detection device comprising: a wireless transmission unit that wirelessly transmits the magnetic detection signal;
A wireless receiver for receiving the magnetic detection signal transmitted from the wireless transmitter of the coupler locking detection device;
A portable notification device comprising: a notification unit that notifies the presence or absence of locking of a coupler based on the magnetic detection signal received by the wireless reception unit;
One of the magnet and the magnetic sensor is arranged so as to move in conjunction with a lock, and the other is fixed to the main body of the coupler, and the lock is located at the lock position. The coupler locking confirmation system, wherein the magnet and the magnetic sensor are sometimes opposed to each other, and the magnet and the magnetic sensor are arranged so as to be separated from each other when the magnet and the magnetic sensor are opposite to each other. The coupler locking detection device includes a battery for supplying power to the magnetic sensor, the magnetic detection means, and the wireless transmission unit,
The said wireless transmission part transmits the said magnetic detection signal intermittently, The coupling device locking confirmation system of Claim 1 characterized by the above-mentioned.   The notification unit of the portable notification device displays that the magnetic detection signal indicates a locked state when the magnetic detection signal indicates magnetic field detection, and indicates that the lock is in a locked state when the magnetic detection signal indicates magnetic field non-detection. The connector locking confirmation system according to claim 1 or 2, further comprising a display device for displaying.   The notification unit of the portable notification device outputs a sound that the locked state is detected when the magnetic detection signal indicates magnetic field detection, and is in a locked state when the magnetic detection signal indicates non-detection of the magnetic field. The connector locking confirmation system according to any one of claims 1 to 3, further comprising a sound device that outputs the sound. The magnetic sensor is disposed at a position where a distance between the lock and the magnet is 0.5 cm to 5 cm when the lock is positioned at the locking position.
The coupler locking confirmation system according to any one of claims 1 to 4, wherein a maximum distance in which the wireless transmission unit and the wireless reception unit can perform wireless communication is 5 m or less. In the connecting operation of the coupler, the knuckles are connected by engaging each other, and the knuckle is locked when the lock is moved to the lock position, and the knuckle is unlocked when the lock is moved to the lock position. A coupler locking detection device for detecting the locking state of the coupler,
The body of the coupler;
A magnet,
A magnetic sensor that converts the magnetic field of the magnet into an electrical signal;
Magnetic detection means for detecting the magnetic field of the magnet by the magnetic sensor and outputting a magnetic detection signal indicating the presence or absence of magnetic field detection;
A wireless transmission unit that wirelessly transmits the magnetic detection signal,
One of the magnet and the magnetic sensor is arranged so as to move in conjunction with a lock, and the other is fixed to the main body of the coupler, and the lock is located at the lock position. The coupler locking detection device, wherein the magnet and the magnetic sensor are sometimes opposed to each other, and the magnet and the magnetic sensor are disposed so as to be separated from each other when positioned opposite to each other. In the connecting operation of the coupler, the knuckles are connected by engaging each other, and the knuckle is locked when the lock is moved to the lock position, and the knuckle is unlocked when the lock is moved to the lock position. , A coupler locking confirmation method for confirming the locking of the coupler,
Of the magnetic sensor for converting the magnetic field of the magnet and the magnet into an electric signal, one of them, arranged so as to move in conjunction with the tablets, while the, fixed to the body of the coupler, the tablets Tablets hooking position The magnet and the magnetic sensor are opposed to each other when positioned at the position, and the magnet and the magnetic sensor are spaced apart when positioned at the opposite position,
Detecting the magnetic field of the magnet with the magnetic sensor, wirelessly transmitting a magnetic detection signal by a wireless transmission device,
A connector locking confirmation method, wherein the magnetic detection signal is received by a portable notification device that can be carried by an operator, and the notification means notifies the presence or absence of locking of the coupler based on the magnetic detection signal.