JP2017217952A - Passenger boarding bridge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a passenger boarding bridge capable of followingly moving a cab connected to an entrance part of an aircraft according to vertical movement of the aircraft more properly than before.SOLUTION: A passenger boarding bridge 100 comprises a rotunda 12 connected to a terminal building, a tunnel part 10 connected to the rotunda 12 in a liftable and lowerable manner, a lifting device supporting the tunnel part 10 such that the tunnel part 10 is lifted and lowered, a cab 20 provided at the end of the tunnel part 10, a distance measuring device 23 measuring a reference distance from the ground 18 to the cab 20 or the tunnel part 10, a level measuring device 25 measuring a deviation amount of a relative distance between the floor of an entrance part 201 of an aircraft 200 and the floor of the cab 20 after the cab 20 is connected to the entrance part 201 of the aircraft 200, and a control device 50 controlling the lifting device such that the cab 20 connected to the entrance part 201 of the aircraft 200 is followingly moved according to vertical movement of the aircraft 200 on the basis of the measured values of the distance measuring device 23 and the level measuring device 25.SELECTED DRAWING: Figure 1

Description

  The present disclosure relates to passenger boarding bridges.

  A passenger boarding bridge is known as a facility used for passengers getting on and off between an airport terminal building and an aircraft. When the cab of the passenger boarding bridge is connected to the boarding / alighting section of the aircraft, a walking path for passengers to the aircraft is formed using the passenger boarding bridge.

  Specifically, the passenger boarding bridge includes a tunnel portion composed of a plurality of nested tunnels, and the drive columns are connected at appropriate positions of the tunnel portion so as to sandwich the tunnel portion from both the left and right sides. . When the tire of the driving device provided at the lower end of the drive column travels on the ground on the apron, the power of telescopic movement and / or horizontal movement in the front-rear direction is transmitted to the tunnel portion. In this way, when the entire length of the tunnel portion extends, the cab arranged at the front end of the tunnel portion is connected to the landing portion of the aircraft.

  At this time, when the aircraft moves up and down due to passengers getting on and off, the vertical extension mechanism of the drive column is controlled so that the cab follows the vertical movement. For example, Patent Documents 1 and 2 propose an auto leveler for performing this control. The auto-leveler has a function of detecting the amount of vertical movement of the aircraft. Thereby, the shift | offset | difference amount of the relative distance of the floor surface of a cab and the floor surface of the boarding / alighting part of an aircraft can be known. When the relative distance shift amount is equal to or greater than a predetermined value, the drive column is controlled so that the cab moves following the vertical movement of the aircraft.

Japanese Patent No. 2747906 No. 3-49999

  However, in the above conventional example, the factors that change the relative distance between the floor surface of the aircraft getting on and off and the floor surface of the cab are not sufficiently studied, and the drive column is operated even when the relative distance changes. It may not be appropriate. Details will be described in the embodiment.

  An aspect of the present disclosure has been made in view of such circumstances, and a passenger boarding bridge that can move a cab connected to a boarding / alighting section of an aircraft more appropriately following the vertical movement of the aircraft than before. I will provide a.

  In order to solve the above problems, a passenger boarding bridge according to an aspect of the present disclosure includes a rotander connected to a terminal building, a tunnel portion connected to the rotander so as to be movable up and down, and the tunnel portion ascends and descends. A lifting device that supports the tunnel part, a cab provided at the tip of the tunnel part, a distance measuring device that measures a reference distance from the ground to the cab or the tunnel part, and the cab is an aircraft landing part After connecting, a level measuring device that measures the amount of deviation of the relative distance between the floor surface of the boarding / alighting part of the aircraft and the floor surface of the cab, and the cab connected to the boarding / alighting part of the aircraft include the distance measuring device and the level A control device that controls the lifting device to move following the vertical movement of the aircraft based on the measurement value of the measuring device.

  The passenger boarding bridge according to one aspect of the present disclosure has an effect that the cab connected to the boarding / alighting part of the aircraft can be moved to follow the vertical movement of the aircraft more appropriately than in the past.

Drawing 1 is a figure showing an example of a passenger boarding bridge of an embodiment. Drawing 2 is a figure showing an example of the cab of the passenger boarding bridge of an embodiment. Drawing 3 is a figure showing an example of a cab of a passenger boarding bridge of an embodiment. Drawing 4 is a figure for explaining an example of operation of a passenger boarding bridge of an embodiment. FIG. 5 is a flowchart illustrating an example of the operation of the passenger boarding bridge according to the embodiment. FIG. 6 is a flowchart illustrating an example of the operation of the passenger boarding bridge according to the embodiment.

(Embodiment)
As a result of intensive studies on the factors that change the relative distance between the floor surface of the aircraft entry and exit and the floor surface of the cab, the following findings were obtained.

  As a factor that changes the relative distance between the floor surface of the boarding / alighting portion of the aircraft and the floor surface of the cab, there is a change in the reference distance from the ground to the cab or the tunnel portion in addition to the vertical movement of the aircraft. If the reference distance from the ground to the cab or tunnel changes when no operation command is issued to the drive column, there is a high possibility that an emergency such as a passenger boarding bridge failure has occurred. For example, when the tire of the driving device provided at the lower end of the drive column is punctured, the reference distance from the ground to the cab changes, and the amount of deviation of the relative distance becomes a predetermined value or more. Therefore, in the conventional passenger boarding bridge, although the position (height) of the boarding / alighting part of the aircraft has not changed, the wheel of the auto leveler rotates, so that a drive signal to the drive column is output. However, in this case, it is not appropriate to operate the drive column. Rather, it is necessary to stop the operation of the passenger boarding bridge.

  Accordingly, the inventors have arrived at the idea of providing a distance measuring device (for example, a laser sensor) for measuring a reference distance from the ground to the cab on the passenger boarding bridge in order to eliminate the above disadvantages.

  That is, the passenger boarding bridge according to the first aspect of the present disclosure has been devised based on the above knowledge, and a rotander connected to the terminal building, and a tunnel portion connected to the rotander so as to be capable of ascending and descending. A lifting device that supports the tunnel portion so that the tunnel portion moves up and down, a cab provided at the tip of the tunnel portion, a distance measuring device that measures a reference distance from the ground to the cab or the tunnel portion, and the cab is an aircraft After connecting to the boarding / alighting part of the aircraft, the level measuring device for measuring the amount of deviation of the relative distance between the floor surface of the boarding / alighting part of the aircraft and the floor surface of the cab, and the cab connected to the boarding / alighting part of the aircraft And a control device that controls the lifting device so as to follow the vertical movement of the aircraft based on the measurement value of the measuring device.

  According to such a configuration, the cab connected to the boarding / alighting part of the aircraft can be moved following the vertical movement of the aircraft more appropriately than in the past.

  Specifically, the passenger boarding bridge according to the second aspect of the present disclosure is the passenger boarding bridge according to the first aspect. In the passenger boarding bridge according to the first aspect, the control device has a predetermined deviation amount of the relative distance based on the measurement value of the level measurement device. And determining whether or not the reference distance has changed based on the measurement value of the distance measuring device, and the control device determines that the amount of deviation in the relative distance is equal to or greater than a predetermined value. If the reference distance does not change, the cab is moved following the vertical movement of the aircraft.

  As a factor that changes the relative distance between the floor surface of the landing area of the aircraft and the floor surface of the cab, there is a change in the reference distance from the ground to the cab in addition to the vertical movement of the aircraft. Therefore, in the passenger boarding bridge according to this aspect, the distance measuring device is used to monitor the change in the reference distance and respond to the change in the relative distance deviation between the floor surface of the boarding / exiting portion of the aircraft and the floor surface of the cab. Thus, the cab can be moved following the vertical movement of the aircraft more appropriately than in the past.

  Further, in the passenger boarding bridge according to the third aspect of the present disclosure, in the passenger boarding bridge according to the second aspect, the control device is configured such that the relative distance shift amount is equal to or greater than a predetermined value, and the reference distance is changed. If this happens, stop the passenger boarding bridge.

  In the passenger boarding bridge of this aspect, when the reference distance from the ground to the cab changes, there is a high possibility that an emergency such as a failure of the passenger boarding bridge has occurred. Therefore, in this case, the passenger boarding bridge can be brought to an emergency stop.

  Further, in the passenger boarding bridge according to the fourth aspect of the present disclosure, in the passenger boarding bridge according to the first to third aspects, the distance measuring device is a laser sensor, and the level measuring device is an auto leveler.

  Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. Each embodiment described below shows a specific example of the present disclosure. Numerical values, shapes, components, arrangement positions and connection forms of components, steps, order of steps, and the like shown in the following embodiments are merely examples, and do not limit the present disclosure. In addition, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims indicating the highest concept of the present disclosure are described as arbitrary constituent elements. In the drawings, the same reference numerals are sometimes omitted. In addition, the drawings schematically show each component for easy understanding, and there are cases where the shape and dimensional ratio are not accurately displayed.

[Overall configuration of the device]
Drawing 1 is a figure showing an example of a passenger boarding bridge of an embodiment. Here, a state in which the entire length of the tunnel portion 10 is extended is shown.

  Hereinafter, for convenience, the direction in which the entire length of the tunnel portion 10 of the passenger boarding bridge 100 expands and contracts is defined as the front-rear direction, the direction in which gravity acts on the passenger boarding bridge 100 is defined as the up-down direction, and the width direction of the passenger boarding bridge 100 A direction orthogonal to the direction) will be described as the left-right direction. Further, as shown in FIG. 1, in the passenger boarding bridge 100, the aircraft 200 side is described as “front”, and the terminal building (not shown) side is described as “rear”.

  A passenger boarding bridge 100 according to the present embodiment is provided at a rotunda (rear circular chamber) 12 connected to a terminal building, a tunnel unit 10 connected to the rotander 12 so as to be movable up and down, and a tip of the tunnel unit 10. A cab (front circular chamber) 20, a drive column 15 that supports the tunnel portion 10 so that the tunnel portion 10 moves up and down, and an auxiliary staircase 16 are provided.

  The tunnel portion 10 is configured such that adjacent tunnels 10A and 10B are nested in a relative relationship between the inside and the outside, and the entire length of the tunnel portion 10 is configured to be extendable in the front-rear direction.

  The drive column 15 (elevating device) is a device that is connected to the tunnel unit 10 and used for the vertical movement of the tunnel unit 10. That is, the drive column 15 is connected to a suitable place (specifically, a front portion of the tunnel 10B) of the outer tunnel 10B so as to sandwich the tunnel portion 10 from both left and right sides. Thereby, the tunnel part 10 and the cab 20 can be rock | fluctuated in the up-down direction on the basis of the rotander 12 near the boarding / alighting part of a terminal building.

  A drive device is disposed at the lower end of the drive column 15. The drive device is a device that supports the drive column 15 and is used for expansion and contraction movement and / or horizontal movement of the tunnel portion 10. For example, when the tire 14 of the driving device travels in the left-right direction on the ground 18 of the apron, the power of horizontal movement is transmitted to the tunnel portion 10. When the tire 14 of the drive device travels in the front-rear direction on the ground 18 of the apron, the power of the telescopic movement in the front-rear direction is transmitted to the tunnel portion 10. When the cab 20 disposed at the front end of the tunnel part 10 reaches the boarding / alighting part 201 of the aircraft 200 by extending the entire length of the tunnel part 10, the boarding / alighting part (not shown) of the airport terminal building and the aircraft 200. A passenger walking passage (not shown in FIG. 1) is formed between the passenger boarding and unloading portion 201.

  The cab 20 is rotatably disposed at the front end of the tunnel portion 10. An operation panel is installed in the cab 20, and an operator can operate equipment (for example, the drive column 15) of the passenger boarding bridge 100 using the joystick of the operation panel. The detailed configuration of the cab 20 will be described later.

  The auxiliary staircase 16 is provided on the side of the tunnel portion 10 so as to connect the inside of the tunnel portion 10 and the ground 18 of the apron. The auxiliary staircase 16 is used, for example, for an operator to enter and exit the cab 20.

[Composition of cab]
Hereinafter, an example of the cab of the embodiment will be described with reference to the drawings.

  2 and 3 are diagrams illustrating an example of a cab of a passenger boarding bridge according to an embodiment. 2 shows a plan view of the front end portion of the cab 20 of FIG. 1 in the vertical direction, and FIG. 3 shows a view of the cab 20 of FIG. 1 as viewed from the front.

  The cab 20 includes a walking passage 21, a cab frame 22, and a closure 24.

  The walking passage 21 includes a fixed floor (not shown) connected at the tip of the tunnel portion 10 (see FIG. 1), and an inclined floor 21A connected to the fixed floor and configured to be tiltable in the width direction 300. . In addition, since such a tilting mechanism of the tilted floor 21A is known, it will be outlined below without detailed description of this mechanism.

  For example, the fixed floor and the inclined floor 21A are connected to each other through a connection hinge portion (not shown). The right end or left end of the inclined floor 21A moves up and down by the power of a power generator (not shown) such as a power cylinder or an electric motor. Then, the front end portion of the inclined floor 21A can swing around the connecting hinge portion. Thereby, the inclined floor 21 </ b> A can be inclined in the width direction 300. A synthetic rubber bumper 21B is disposed at the front end of the inclined floor 21A. Bumper 21 </ b> B has a function of mitigating impact when sloped floor 21 </ b> A comes in contact with boarding / alighting portion 201 of aircraft 200, and a function of maintaining the distance between the front end of sloped floor 21 </ b> A and boarding / alighting portion 201 of aircraft 200.

  The closure 24 is provided when the bellows part 24A (see FIG. 4) that can be expanded and contracted in the front-rear direction, the portal contact part 24B that is provided at the front end of the bellows part 24A and contacts the aircraft 200, and the bellows part 24A contracts. 24 A of bellows parts are accommodated, The accommodation part 24C integrally connected with said fixed floor or cab frame is provided. Thereby, when the cab 20 is connected to the aircraft 200, the contact portion 24 </ b> B can contact the periphery of the getting-on / off portion 201 of the aircraft 200 by tilting forward.

The cab frame 22 is a part of a cab structure that protrudes downward from the main body of the cab 20. A distance measuring device 23 is disposed on the cab frame 22. The distance measuring device 23 is a sensor that measures a reference distance H ₁ (see FIG. 1) from the ground 18 of the apron to the cab 20. Distance measuring device 23, if the measurement of this reference distance H _1, may be of any type. An example of the distance measuring device 23 is a laser sensor.
In the present embodiment, the distance measuring device 23 is disposed on the cab frame 22, but is not limited thereto, and may be disposed on the lower surface of the accommodating portion 24 </ b> C, for example. The cab frame 22 and the accommodating portion 24C are members arranged on the foremost side of the cab 20, and are not connected to the inclined floor 21A and are not inclined together with the inclined floor 21A. Convenient to install.

Further, a level measuring device 25 is disposed on the side wall (the accommodating portion 24C) of the cab 20. After the cab 20 is connected to the boarding / alighting part 201 of the aircraft 200, the level measuring device 25 is configured such that a deviation ΔH of the relative distance H ₂ (see FIG. 4) between the floor surface of the boarding / alighting part 201 of the aircraft 200 and the floor surface of the cab 20 is obtained. _This is a device that measures ₂ . The level measuring device 25 may be anything as long as it can measure the deviation amount ΔH ₂ of the relative distance H ₂ . In the present embodiment, the following auto leveler 25 is used as the level measuring device 25.

  The auto-leveler 25 includes, for example, a foil 25A, a contact limit switch (not shown) when the wheel 25A moves forward, and a rotation limit switch (not shown) when the wheel 25A rotates.

The contact limit switch is adjusted in advance so that the pressure of the foil 25A on the aircraft body surface of the aircraft 200 is optimized, and when the auto leveler 25 moves forward, the contact limit switch is turned on, and the forward limit switch is turned on. The movement can be stopped by a desired movement amount. As a result, the auto-leveler 25 can push the foil 25A onto the body surface of the aircraft 200 with an optimum pressure, and can appropriately detect the relative vertical position of the passenger boarding bridge 100 with respect to the aircraft 200. That is, when the aircraft 200 moves up and down, the wheel 25A of the auto leveler 25 rotates. Therefore, the relative position of the passenger boarding bridge 100 with respect to the aircraft 200 is detected by the rotation angle of the wheel 25A. In this manner, the automatic leveler 25 can measure the deviation amount ΔH ₂ of the relative distance H ₂ between the floor surface of the getting-on / off unit 201 of the aircraft 200 and the floor surface of the cab 20.

  The rotation limit switch is adjusted to be turned on when the wheel 25A is rotated clockwise and counterclockwise by a predetermined angle. When the rotation limit switch is turned on, the cab 20 moves up and down the aircraft 200. The drive column 15 is controlled to move following.

  Further, a control device 50 is disposed in the operation panel of the cab 20. The control device 50 controls the drive column 15 so that the cab 20 connected to the getting-on / off unit 201 of the aircraft 200 moves following the vertical movement of the aircraft 200 based on the measurement values of the distance measurement device 23 and the level measurement device 25. .

Specifically, based on the measurement value of level measurement device 25, control device 50 has a deviation amount ΔH ₂ of the relative distance H ₂ between the floor surface of boarding / exiting portion 201 of aircraft 200 and the floor surface of cab 20 greater than or equal to a predetermined value. And whether or not the reference distance H ₁ from the ground 18 of the apron to the cab 20 has changed is determined based on the measurement value of the distance measuring device 23. Then, the control unit 50, the deviation amount [Delta] H ₂ above the relative distance H ₂ is equal to or greater than the predetermined value, when the reference distance H ₁ described above did not change, follow the cab 20 to vertical movement of the aircraft 200 moves Let On the other hand, the control unit 50, the deviation amount [Delta] H ₂ above the relative distance H ₂ is equal to or greater than the predetermined value, when the reference distance H ₁ of the changes, causes stop passenger boarding bridge 100 (emergency stop). Details of the operation of the control device 50 will be described later.

  The control device 50 may have any configuration as long as it has a control function. The control device 50 includes, for example, an arithmetic circuit (not shown) and a storage circuit (not shown) that stores a control program. Examples of the arithmetic circuit include a PLC, an MPU, and a CPU. Examples of the memory circuit include a semiconductor memory. The control device 50 may be composed of a single controller or a plurality of controllers.

[Operation]
Drawing 4 is a figure for explaining an example of operation of a passenger boarding bridge of an embodiment.

  5 and 6 are flowcharts illustrating an example of the operation of the passenger boarding bridge according to the embodiment.

  The following automatic control operation of the passenger boarding bridge 100 is performed by the control program of the control device 50. However, it is not always necessary to perform the following automatic control operation by the control device 50. An operator may perform some of the operations.

  Further, in the operation of the passenger boarding bridge 100 described above, the order of the steps can be changed as necessary. Further, other known steps can be added as necessary. For example, in this embodiment, after the passenger boarding bridge 100 is set to the auto level mode in step S9, the distance measuring device 23 is set to ON in step S10. However, the operation in step S9 and the operation in step S10 may be performed simultaneously, or the order may be reversed. Moreover, you may add well-known steps, such as the operation | movement which extends the bellows part 24A of the closure 24 ahead, for example between step S9 and step S10.

  First, step S1 to step S8 in FIG. 5 will be described. FIG. 5 shows an operation until the passenger boarding bridge 100 moves from the parking position to the mounting position on the aircraft 200.

  In addition, these step S1-step S8 may be the same as operation | movement of a well-known auto docking function.

  In step S1, the operator selects a model of the aircraft 200 by pressing a model selection button on an operation panel (not shown) of the operation panel. Based on this model selection, a predetermined mounting position corresponding to the model is determined from a plurality of preset mounting positions.

  Next, when the operator presses the start button on the operation panel, the following automatic control starts. In the present embodiment, the start button is configured as a button that is turned on only when the operator is pressing the button, that is, a deadman switch button. Therefore, when the operator releases the button, the following automatic control is forcibly stopped.

  In step S2, various control amounts (for example, the rotation angle of the cab 20, up to the mounting position) based on the model selection and detection results of an appropriate angle sensor (not shown) and a position sensor (not shown). The vertical movement amount of the tunnel portion 10 and the rotation angle and travel distance of the tire 14 of the driving device disposed at the lower end of the drive column 15 are calculated.

  Next, based on the calculation result, in step S4, the cab 20 is rotated, and in step S5, the tunnel unit 10 is moved up and down.

  At the same time, in step S3 and step S6, the above-described drive device is controlled. Specifically, in step S3, the tire 14 of the driving device rotates in the direction of the mounting position (target position), and then in step S6, the tire 14 of the driving device moves toward the apron ground 18 in this direction. Drive on top.

  In step S7, a distance between the bumper 21B of the inclined floor 21A of the cab 20 and the aircraft 200 is determined based on a detection result of a photoelectric distance sensor (not shown) (for example, 1 m). It is determined whether or not.

  When the determination result of step S7 is NO, the above operation is performed as it is. On the other hand, if YES, the process proceeds to step S8.

  In step S8, the inclination angle automatic control in the width direction 300 of the inclined floor 21A of the cab 20 is performed based on the output signal of the angle adjustment detector (not shown) of the inclination angle in the width direction 300. Specifically, the power generator is controlled so that the inclination angle of the inclined floor 21A becomes a predetermined target value based on the output signal of the angle adjustment detector. For example, the power generator is controlled so that the inclined floor 21 </ b> A is parallel to the apron ground 18. As a result, the control device 50 outputs the output of the angle adjustment detector when the floor surface of the inclined floor 21A of the cab 20 and the floor surface 201A (see FIG. 4) of the boarding / alighting portion 201 of the aircraft 200 are not parallel. The inclination angle in the width direction 300 of the inclined floor 21A is automatically controlled based on the signal.

  Thereafter, the cab 20 is connected to the getting-on / off unit 201 of the aircraft 200 by the manual operation of the operator, and the mounting of the cab 20 on the aircraft 200 is completed.

  Next, step S9 to step S16 in FIG. 6 will be described. FIG. 6 shows the operation of the passenger boarding bridge 100 after the cab 20 has been attached to the aircraft 200.

  By the manual operation of the operator, the passenger boarding bridge 100 is set to the auto level mode in step S9 by using a key switch (not shown) on the operation panel, and the distance measuring device 23 is set to ON in step S10.

Then, the reference distance _{H 1} from the apron ground 18 by the distance measuring device 23 until the cab 20 is measured in step S11, the inclined floor of the floor surface 201A and the cab 20 of the landing portion 201 of the aircraft 200 by autoleveller 25 in step S12 A deviation amount ΔH ₂ of a relative distance H _{2 from} the floor surface of 21A is measured.

Next, in step S13, the deviation amount [Delta] H ₂ in the relative distance of _{H 2} step S12 whether a predetermined value or more is determined.

As described above, the auto leveler 25 includes a rotation limit switch when the wheel 25A rotates. Therefore, (when the determination result of step S13 is NO) when the rotational limit switch so as not to turn on the shift amount [Delta] H _2, not the cab 20 to follow the movement to the vertical movement of the aircraft 200. In this case, the operations in step S11 and step S12 are performed again.

In contrast, when the shift amount [Delta] H ₂ in the relative distance H ₂ is equal to or greater than a predetermined value (if the determination result in step S13 is YES), the rotation limit switch autoleveller 25 is turned on. In this case, the process proceeds to the next determination step S14.

In step S14, whether the reference distance _{H 1} in step S11 has been changed is determined.

When the reference distance _{H 1} in step S11 has not changed (when the determination result of step S14 is NO), the cab 20 to follow the movement to the vertical movement of the aircraft 200 at step S15. That is, as the deviation amount [Delta] H ₂ in the relative distance H ₂ becomes zero, vertically moving the passenger boarding bridges 100 (tunnel portion 10) with a drive column 15. Thereby, for example, when the aircraft 200 moves up and down due to passengers getting on and off, the cab 20 can be moved following the vertical movement.

On the other hand, if the reference distance _{H 1} in step S11 is changed (when the determination result of step S14 is YES), it causes stop passenger boarding bridge 100 in step S16 (emergency stop).

  As described above, in the passenger boarding bridge 100 of the present embodiment, the cab 20 connected to the boarding / exiting portion 201 of the aircraft 200 can be moved following the vertical movement of the aircraft 200 more appropriately than in the past.

Specifically, as a factor relative distance _{H 2} is changed with the floor surface of the sloped floor 21A of the floor surface 201A and the cab 20 of the landing portion 201 of the aircraft 200, in addition to the vertical movement of the aircraft 200, the ground of the apron 18 There is a change in the reference distance H ₁ from the cab 20 to the cab 20. Accordingly, the passenger load bridge of the present embodiment, by using the distance measuring device 23, while monitoring the change of such reference distance H _1, the sloped floor 21A of the floor surface 201A and the cab 20 of the landing portion 201 of the aircraft 200 Floor The cab 20 can be moved to follow the up-and-down movement of the aircraft 200 more appropriately than in the past in accordance with the change in the deviation amount ΔH ₂ of the relative distance H _{2 from} the surface.

Moreover, the passenger boarding bridge 100 of the present embodiment, when the reference distance H ₁ from the apron of the ground 18 until the cab 20 is changed, it is likely that emergency such as failure of the passenger boarding bridges 100 has occurred . Therefore, in this case, the passenger boarding bridge 100 can be brought to an emergency stop.

From the above description, many modifications and other embodiments of the present disclosure are apparent to persons skilled in the art. For example, in the present embodiment, the distance measuring device 23 is arranged on the cab frame 22, but measures the reference distance H ₁ from the ground 18 to the cab 20 is not limited to this, a distance measuring device to the tunnel portion 10 The reference distance from the ground 18 to the tunnel portion 10 may be measured. Even in this case, the same effect can be obtained if the drive column 15 is controlled to move following the vertical movement of the aircraft 200 based on the measured values of the distance measuring device and the level measuring device 25. However, the change in the reference distance from the ground 18 is easier to capture in the part away from the rotander 12. Therefore, it is preferable to measure the reference distance from the ground 18 to the tip (front) tunnel 10B rather than the reference distance from the ground 18 to the root (rear) tunnel 10A. It is more preferable to measure the reference distance from 15 to the front part. Further, it is more preferable to measure the reference distance H ₁ from the ground 18 to the cab 20 as in the present embodiment.

Further, detection of a change in the reference distance used in the present disclosure includes detection when a predetermined detection width (threshold value) is exceeded.
Accordingly, the foregoing description is to be construed as illustrative only and is provided for the purpose of teaching those skilled in the art the best mode of carrying out the disclosure. Details of the structure and / or function may be substantially changed without departing from the spirit of the present disclosure.

  The passenger boarding bridge according to one aspect of the present disclosure can move the cab connected to the boarding / alighting part of the aircraft more appropriately following the vertical movement of the aircraft than before. Therefore, one aspect of the present disclosure can be used for, for example, a passenger boarding bridge.

DESCRIPTION OF SYMBOLS 10: Tunnel part 10A: Tunnel 10B: Tunnel 12: Rotunda 14: Tire 15: Drive column 16: Auxiliary stairs 18: Ground 20: Cab 21: Walking passage 21A: Inclined floor 21B: Bumper 22: Cab frame 23: Distance measuring device 24: Closure 24A: Bellows part 24B: Contact part 24C: Storage part 25: Level measuring device (auto leveler)
25A: Wheel 50: Control device 100: Passenger boarding bridge 200: Aircraft 201: Boarding / exiting part 201A: Floor surface

Claims (4)

Rotunda connected to the terminal building,
A tunnel portion connected to the rotander so as to be movable up and down;
An elevating device that supports the tunnel portion so that the tunnel portion is raised and lowered;
A cab provided at the tip of the tunnel part;
A distance measuring device for measuring a reference distance from the ground to the cab or the tunnel part;
After the cab is connected to the boarding / alighting part of the aircraft, a level measuring device that measures a deviation amount of the relative distance between the floor surface of the boarding / alighting part of the aircraft and the floor surface of the cab,
A control device that controls the lifting device so that a cab connected to the boarding / alighting section of the aircraft follows the vertical movement of the aircraft based on the measured values of the distance measuring device and the level measuring device. Boarding bridge. The control device determines whether or not the amount of deviation of the relative distance is greater than or equal to a predetermined value based on the measurement value of the level measurement device, and whether the reference distance has changed based on the measurement value of the distance measurement device Determine whether or not
2. The passenger boarding according to claim 1, wherein the control device moves the cab following the vertical movement of the aircraft when the deviation amount of the relative distance is equal to or greater than the predetermined value and the reference distance does not change. bridge.   The passenger boarding bridge according to claim 2, wherein the control device stops the passenger boarding bridge when a shift amount of the relative distance is equal to or greater than the predetermined value and the reference distance changes. The passenger boarding bridge according to any one of claims 1 to 3, wherein the distance measuring device is a laser sensor, and the level measuring device is an auto-leveler.

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