JP2007153302A - Boarding bridge provided with auxiliary stair and boarding bridge system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a boarding bridge with high safety capable of being attached/detached to various aircrafts, and a boarding bridge system provided with it. <P>SOLUTION: The boarding bridge system 1 is provided with a plurality of boarding bridges 10, 11, 12 connected to a doorway of a terminal building 2 of an airport. The boarding bridges 10, 11 are constituted so as to be connected to a first floor doorway 21 and the boarding bridge 12 is constituted so as to be made connectable to any of the first floor doorway 21 and the second floor doorway 22. In the boarding bridges 10, 11, a linear advancement type auxiliary stair 31 is mounted to a side surface of a second tunnel 15b on a leading end side. Whereas, in the boarding bridge 12, an auxiliary stair 32 is mounted to a side surface of a first tunnel 5a on a base side. The auxiliary stair 32 is a folding type stair and a part is positioned below the tunnel part 5. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a boarding bridge and a boarding bridge system having auxiliary stairs.

  Conventionally, a boarding bridge is often used as an aircraft entry / exit device. The boarding bridge is a tunnel-like walking passage that connects an airport terminal building and an aircraft, and allows passengers to get on and off directly between the terminal building and the aircraft.

  In general, a boarding bridge includes a rotatable rotor connected to an entrance of a terminal building, a telescopic tunnel portion fixed to the rotor, and a rotatable cab provided at the tip of the tunnel portion. A pair of left and right drive columns extending in the vertical direction are provided as support legs having an elevating mechanism on the slightly distal end side of the tunnel portion.

  Some boarding bridges are provided with auxiliary stairs for mechanics, boarding bridge operators and the like to ascend and descend. This type of auxiliary staircase is usually attached to a portion near the cab of the telescopic tunnel portion, and is provided to descend in a straight line while maintaining a gradient of a predetermined angle or less toward the rotor side (for example, , See Patent Document 1).

  By the way, the boarding bridge connects the aircraft to the terminal building by connecting the cab to the entrance of the aircraft and enables passengers to get on and off. However, the height of the aircraft entrance / exit differs from aircraft to aircraft. Therefore, in order to make the boarding bridge detachable to many types of aircraft, an elevating mechanism is provided on the drive column that supports the tunnel portion, and the vertical height of the cab is adjusted to the height of the entrance of the aircraft, It can move freely up and down.

  The upper part of the auxiliary staircase is connected to the tunnel portion near the cab so as to be rotatable about a horizontal axis. When the cab is moved up and down, the auxiliary staircase rotates about the connecting portion as a fulcrum. Thus, the auxiliary staircase moves up and down following the tunnel portion, while the lower end portion always contacts the ground, thereby functioning as a staircase connecting the ground and the tunnel portion. At this time, the gradient of the auxiliary stairs changes according to the vertical position of the cab. That is, when the cab position is low, the gradient of the auxiliary staircase decreases, and conversely, when the cab position increases, the gradient of the auxiliary staircase increases.

  By the way, if the step board of the auxiliary staircase is fixed to the girder so as not to rotate, the inclination of the step board also changes according to the change of the gradient of the auxiliary step. As a result, when the gradient of the auxiliary stairs increases, the gradient of the treads also increases, making it difficult for a mechanic or the like to go up and down smoothly. Therefore, a conventional auxiliary staircase employs a link structure in which a plurality of treads are pin-joined to a pair of girders so that the gradient of the treads does not increase even when the gradient of the auxiliary staircase increases.

However, in recent years, large-sized aircrafts, airplanes with a second-floor seat entrance / exit, and the like have appeared, and the entrance / exit may be provided at a higher position than before. In order to be mounted on such an aircraft, the height of the cab must be raised to a higher level than before, and if the conventional auxiliary staircase is used, the slope must be steep. On the other hand, it is considered that the auxiliary staircase attached to the boarding bridge is preferably designed to have an angle of a predetermined angle (for example, 40 degrees) or less defined as a gradient that can be safely moved up and down. Therefore, it is conceivable to increase the length of the auxiliary stairs in the direction of the girders as a measure that can be mounted on an aircraft with a high entrance and that keeps the gradient of the auxiliary stairs below a specified angle.
JP 2003-291896 A

  However, simply increasing the length of the auxiliary staircase in the direction of the spar (hereinafter referred to as “extension of the auxiliary staircase”) will reduce the time when the tunnel is fully contracted (when the tunnel is in its most contracted state). However, there are concerns about interference between the auxiliary stairs and the foundation of the terminal building and other equipment near the terminal building.

  In an aircraft with many second-floor seats, a second-floor entrance / exit may be provided in addition to the standard first-floor entrance / exit. In such a case, the distance between the boarding bridges installed at each entrance / exit (especially the distance between the boarding bridge installed at the 1st floor entrance / exit and the boarding bridge installed at the 2nd floor entrance / exit) is larger than the conventional one. It is expected to approach. For this reason, the driver of the boarding bridge must consider the interference between the adjacent boarding bridge and the auxiliary staircase, which increases the burden on driving.

  The present invention has been made in view of such points, and an object of the present invention is to provide a boarding bridge that can be attached to and detached from various aircrafts and has high safety, and a boarding bridge system including the boarding bridge system. There is.

  A boarding bridge according to the present invention includes a rotor connected to an entrance / exit of a terminal building, a telescopic tunnel portion having one end swingably connected to the rotor and made up of a plurality of tubular bodies. A cab that is provided at the other end of the tunnel portion, and is attached to and detached from an entrance of an aircraft, a lifting device that moves the cab up and down by moving the tunnel portion or the cab up and down, and is attached to the tunnel portion. An auxiliary staircase that connects the tunnel portion and the ground surface, and the auxiliary staircase is attached to a root-side cylindrical body connected to the rotor among a plurality of cylindrical bodies constituting the tunnel portion. It is what.

  The auxiliary staircase of the boarding bridge is attached to the base-side cylindrical body that has a small vertical fluctuation with respect to the vertical movement of the cab. Therefore, even if the amount of cab rising is large, the auxiliary stair attachment portion (attachment portion to the tunnel portion) does not rise so much. Therefore, the slope does not become steep even if the auxiliary staircase is not lengthened. For this reason, it is possible to make it possible to attach to an aircraft having a high entrance / exit while suppressing the gradient of the auxiliary staircase to a specified angle or less. Moreover, since the gradient of the auxiliary staircase can be suppressed, or interference between the auxiliary staircase and other equipment can be avoided, safety can be improved.

  It is preferable that the auxiliary staircase is attached to the rotor side with respect to a central portion in the longitudinal direction of the root side tubular body.

  According to the boarding bridge, the distance by which the attaching portion of the auxiliary staircase moves up and down as the cab moves up and down becomes smaller. Therefore, the auxiliary staircase can be mounted on an aircraft with a high entrance / exit while maintaining the gradient below a specified angle without lengthening the auxiliary staircase.

  The auxiliary stair includes at least a plurality of tread members and a pair of girder plates that support the tread members, and the plurality of tread members are formed integrally with the girder plate or cannot rotate with respect to the girder plate. It is preferably fixed.

  In the auxiliary staircase of the boarding bridge, since the change in the gradient is small, it is not necessary to provide a link structure between the tread plate member and the girder plate as in the prior art. Therefore, for example, the structure of the auxiliary staircase can be made simpler, for example, by welding the tread plate and the girder plate, and the manufacturing labor can be saved.

  The auxiliary staircase includes a first staircase portion that slopes downward toward the first direction and a second staircase portion that slopes downward toward a second direction different from the first direction. preferable.

  According to the boarding bridge, since the auxiliary staircase is a so-called folding type staircase, the length of the auxiliary staircase in the longitudinal direction of the boarding bridge can be reduced. Therefore, it is possible to more reliably prevent interference with other equipment and improve safety. In addition, since the slope of each staircase can be reduced, mechanics and the like can go up and down more smoothly.

  The auxiliary staircase includes the first staircase portion and the second staircase portion, and an upper end portion of the first staircase portion is attached to a side surface of the base-side cylindrical body, and an upper end portion of the second staircase portion. The portion is continuous with the lower end portion of the first staircase portion, the first direction is a direction parallel to the direction in which the tunnel portion extends in a plan view, and the second direction is a plan view. It is preferable that the direction intersects with the direction parallel to the direction in which the tunnel portion shrinks or the angle formed with the direction parallel to the direction in which the tunnel portion shrinks to 90 degrees or less.

  According to the boarding bridge, the length of the auxiliary staircase in the longitudinal direction of the boarding bridge can be further reduced.

  The tunnel portion is directly or indirectly supported, and includes a drive column with a wheel attached to a lower end portion. When the tunnel portion is fully contracted, the end portion of the auxiliary staircase on the cab side is the tunnel portion. It is preferable that the rotor column is located on the rotor side with respect to the direction parallel to the extending and contracting direction.

  According to the boarding bridge, the drive column and the auxiliary stairs do not interfere even when the tunnel portion is in the most contracted state. Therefore, the safety of the boarding bridge can be improved.

  In a plan view, it is preferable that no gap is formed between the auxiliary staircase and the tunnel portion.

  Since the auxiliary staircase of the boarding bridge is a folding-type staircase, the drive column and the auxiliary staircase do not interfere with each other even when the tunnel portion is contracted most. Therefore, it is not necessary to provide a space for avoiding the drive column between the auxiliary staircase and the tunnel portion. Therefore, in the entire boarding bridge including the auxiliary staircase, the tunnel portion can be reduced in the width direction.

  It is preferable that at least a part of the auxiliary staircase is located below the tunnel portion and overlaps the tunnel portion in plan view.

  According to the boarding bridge, the auxiliary staircase can be folded back without increasing the length in the width direction of the boarding bridge.

  A boarding bridge system according to the present invention is connected to a first boarding bridge connected to the first floor entrance / exit of an aircraft having a first floor entrance / exit and a second floor entrance / exit, and to the second floor entrance / exit of the aircraft. A boarding bridge system comprising a second boarding bridge, wherein at least the second boarding bridge comprises the boarding bridge.

  According to the above boarding bridge system, the auxiliary staircase of the second boarding bridge is in a position where it does not easily interfere with the first boarding bridge. Therefore, the operator can easily avoid such interference. Therefore, according to the boarding bridge system, it is possible to improve safety and reduce the burden on the operator.

  It is preferable that the auxiliary staircase of the second boarding bridge is attached to a side surface of the base-side cylindrical body that does not face the first boarding bridge.

  According to the boarding bridge system, it is possible to more reliably prevent the auxiliary stairs of the second boarding bridge from interfering with the first boarding bridge. Therefore, according to the boarding bridge, safety can be further improved.

  The first boarding bridge is provided with a rotor connected to an entrance / exit of a terminal building, one end connected to the rotor, a telescopic tunnel portion formed of a plurality of cylindrical bodies, and the other end of the tunnel portion. A cab that is attached to and detached from an entrance / exit of an aircraft, and an auxiliary staircase that is attached to the tunnel portion and connects the tunnel portion and the ground surface, and the auxiliary staircase of the first boarding bridge includes the tunnel portion Among the plurality of cylindrical bodies constituting the, it is preferable that the distal end side cylindrical body provided with the cab is attached to a side surface that does not face the second boarding bridge.

  According to the boarding bridge system, it is possible to easily prevent the auxiliary stairs of the first boarding bridge from interfering with the second boarding bridge. Therefore, according to the boarding bridge system, the safety can be further improved.

  As described above, according to the present invention, it is possible to provide a boarding bridge that can be attached to and detached from various aircrafts and has high safety, and a boarding bridge system including the boarding bridge.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  As shown in FIG. 1, the boarding bridge system 1 according to the present embodiment includes a plurality of boarding bridges 10, 11, and 12 connected to an entrance / exit of an airport terminal building 2. The boarding bridge system 1 is compatible with the aircraft 20 in which passenger seats are provided in the first floor space 23 (see FIG. 2) and the second floor space 24, respectively. A first floor entrance / exit 21 is provided in the first floor space 23 of the aircraft 20, and a second floor entrance / exit 22 is provided in the second floor space 24. The boarding bridges 10 and 11 are configured to be connected to the first floor entrance / exit 21 and the boarding bridge 12 is configured to be connectable to both the first floor entrance 21 and the second floor entrance 22. In the following description, it is assumed that the boarding bridges 10 and 11 are connected to the first floor entrance 21 and the boarding bridge 12 is connected to the second floor entrance 22.

  The boarding bridge 10 and the boarding bridge 11 have the same configuration. The boarding bridges 10 and 11 and the boarding bridge 12 have a folding type auxiliary staircase 32 to be described later attached to the boarding bridge 12, whereas the boarding bridges 10 and 11 have a straight type auxiliary staircase 31 that does not return. It differs in that it is attached. The boarding bridges 10 and 11 and the boarding bridge 12 are also different in the attachment positions of the auxiliary stairs 31 and 32. However, other configurations are almost the same.

  Therefore, only the configuration of the boarding bridge 12 will be described below, and only the differences between the boarding bridges 10 and 11 and the boarding bridge 12 will be described. For convenience of explanation, the aircraft 20 side of each boarding bridge is hereinafter referred to as the front side, the terminal building 2 side is referred to as the rear side, the right side and the left side from the rear side to the front side are simply referred to as the right side and the left side, respectively.

  As shown in FIG. 2, the boarding bridge 12 includes a rotor (base circular chamber) 4 connected to the boarding entrance of the terminal building 2, and a tunnel portion 5 connected to the rotor 4 so as to be swingable in the vertical direction. A cab (tip circular chamber) 6 is provided at the tip of the tunnel portion 5 so as to be rotatable about the vertical axis. Here, “the tunnel portion 5 is connected to the rotor 4 so as to be swingable in the vertical direction” means that the tunnel portion 5 is swingable around the rotor 4 side, and the cab 6 of the tunnel portion 5 is It means that the amount of vertical movement is larger on the side than on the rotor 4 side. For example, the tunnel portion 5 is connected to the rotor 4 so as to be rotatable about a horizontal axis.

  The rotor 4 is supported by a column 7 so as to be rotatable around a vertical axis. The tunnel portion 5 is a telescopic tubular body that forms a walking passage that connects the terminal building 2 and the entrance / exit 22 of the aircraft 20 and includes a first tunnel 5a, a second tunnel 5b, and a third tunnel 5c. ing. The third tunnel 5c is assembled to be slidable with respect to the second tunnel 5b, and the second tunnel 5b is assembled to be slidable with respect to the first tunnel 5a. When the third tunnel 5c slides with respect to the second tunnel 5b and the second tunnel 5b slides with respect to the first tunnel 5a, the entire tunnel portion 5 expands and contracts. The tunnel unit 5 is not limited to being composed of three tunnels, the first tunnel 5a, the second tunnel 5b, and the third tunnel 5c. For example, it may be composed of two tunnels.

  The third tunnel 5c is provided with a drive column 8 that supports the tunnel portion 5. The drive column 8 is a support column that can be expanded and contracted vertically, and is expanded and contracted by a drive motor (not shown). In the boarding bridge 12, the stroke of the drive column 8 is set long so that the cab 6 can reach the second floor entrance 22.

  A drive wheel 9 is attached to the lower end of the drive column 8. The drive wheel 9 is configured to be rotatable about a vertical axis. As the drive wheels 9 travel, the boarding bridge 12 moves between a standby position away from the aircraft 20 and a mounting position connected to the aircraft 20 (that is, the positions shown in FIGS. 1 and 2). Become. Further, the tunnel portion 5 expands and contracts as the driving wheel 9 travels. Therefore, the drive column 8 also has a function of expanding and contracting the tunnel portion 5.

  As shown in FIG. 2, an outrigger 50 is provided at the lower end of the drive column 8 as a roll prevention device. The outrigger 50 includes a pair of left and right cylinders 51, a rod 52 and a support base 53, and an electric motor (not shown) is disposed inside the cylinder 51. When the electric motor is driven, the rod 52 and the support base 53 move up and down with respect to the cylinder 51. The outrigger 50 assists the support of the tunnel portion 5 while the driving wheel 9 is grounded by such vertical movement of the support base 53.

  On the right side of the first tunnel 5a, an auxiliary staircase 32 that connects the inside of the tunnel portion 5 and the ground (apron) is attached. The auxiliary staircase 32 is a folding staircase provided with a landing 32c on the way. As shown in FIG. 3, the auxiliary staircase 32 is attached to a floor member 30 extending from the inside of the first tunnel 5a to the outside via a hinge pin 30a (see FIG. 4). Hereinafter, for the sake of convenience, in the auxiliary staircase 32, the portion from the attachment portion to the floor member 30 to the folded portion of the landing 32c (the lower portion in FIG. 3) extends from the upper staircase 32a and the folded landing 32c to the ground. (Upper part of FIG. 3) is referred to as a lower staircase portion 32b.

  As shown in FIG. 5, the lower stepped portion 32 b includes a pair of left and right girder plates 35 b and a plurality of tread plates 36 welded at both ends to both girder plates 35 b. As shown in FIG. 4, the lower staircase portion 32b is supported by support members 34a, 34b, and 34c. Specifically, the lower end of the girder 35b is supported by a horizontally extending support member 34a, and the rear end of the floor plate (near the upper end of the girder 35b) of the landing 32c is supported by a vertically extending support member 34b, and the landing 32c. The front end of the floor plate is supported by a support member 34c extending obliquely upward in the forward direction. These support members 34a, 34b, and 34c are connected at the lower end portion of the support member 34b, and a caster 60 that extends downward is attached to the connection portion. A caster 60 is also attached to the lower end of the beam plate 35b.

  As shown in FIG. 3, the upper staircase portion 32 a protrudes to the right side of the tunnel portion 5, but a part of the lower staircase portion 32 b is located below the tunnel portion 5. That is, a part of the lower staircase portion 32 b overlaps with the tunnel portion 5 in plan view.

  As shown in FIG. 5, the upper staircase portion 32a, like the lower staircase portion 32b, includes a pair of left and right girder plates 35a and a plurality of step plates 36 welded at both ends to the pair of left and right girder plates 35a. . As shown in FIG. 4, the upper end portion of the upper staircase portion 32a is attached to the floor member 30 via the hinge pin 30a so as to be rotatable in the vertical direction (in other words, rotatable around the horizontal axis). . Moreover, the lower end part of the upper step part 32a is supported by the above-mentioned support member 34b. Specifically, the lower end portion of the upper staircase portion 32a is supported by fastening the girder plate 35a to the support member 34b with a bolt. Handrails 37 are attached to the upper and lower staircase portions 32a and 32b over substantially the entire circumference.

  Reference numeral 40 shown in FIG. 4 is a hinge pin that connects the first tunnel 5 a and the rotor 4. By this hinge pin 40, the tunnel portion 5 is connected to the rotor 4 so as to be rotatable in the vertical direction. Therefore, as the cab 6 moves up and down, the tunnel portion 5 rotates about the hinge pin 40 and the gradient of the tunnel portion 5 changes. The hinge pin 40 and the hinge pin 30a are designed to be close to each other. Here, the proximity means specifically that the distance between the hinge pin 40 and the hinge pin 30a is equal to or less than half the length of the first tunnel 5a in the longitudinal direction. Therefore, even if the gradient of the tunnel portion 5 varies as the cab 6 moves up and down, the height variation of the hinge pin 30a becomes slight. Further, the height fluctuation of the hinge pin 30a is absorbed by the slight bending of the upper stepped portion 32a, and therefore does not affect the gradient of the lower stepped portion 32b.

  3 and 4 are diagrams showing a plane and a right side surface when the tunnel portion 5 is most contracted (hereinafter referred to as “when fully contracted”). As shown in these drawings, the auxiliary staircase 32 is designed such that the front end portion 32 d of the auxiliary staircase 32 is located behind the drive column 8 when the tunnel portion 5 is fully contracted. The upper staircase portion 32a and the lower staircase portion 32b are each designed to have a gradient of 40 degrees or less. However, the “40 degrees” is an example of the specified angle in the present embodiment, and the specified angle is not particularly limited.

  Next, the boarding bridges 10 and 11 will be described.

  As shown in FIG. 1, like the boarding bridge 12, the boarding bridges 10 and 11 are also provided with a rotor 4, a tunnel portion 15 connected to the rotor 4, and a tip of the tunnel portion 15 so as to be rotatable around a vertical axis. The cab 6 is provided. The tunnel portion 15 of the boarding bridges 10 and 11 is composed of a first tunnel 15a and a second tunnel 15b. The second tunnel 15b is assembled so as to be slidable with respect to the first tunnel 15a. When the second tunnel 15b slides with respect to the first tunnel 15a, the entire tunnel portion 15 expands and contracts.

  A drive column 8 that supports the tunnel portion 15 is provided at an intermediate portion of the second tunnel 15b. An auxiliary staircase 31 is attached to the side surface of the second tunnel 15b. As shown in FIG. 6, the auxiliary staircase 31 is a rectilinear staircase whose upper end portion is positioned forward of the drive column 8 and descends in a straight line toward the rear. The auxiliary staircase 31 is composed of a pair of left and right girder plates 31a and a plurality of treads whose both ends are pin-joined to the girder plate 31a. The auxiliary staircase 31 is pin-joined to a floor plate 31c projecting laterally from the opening of the second tunnel 15b, and changes the slope of the staircase corresponding to the vertical movement of the cab 6.

  In the boarding bridge 12 according to the present embodiment, the auxiliary staircase 32 is attached to the first tunnel 5a. Therefore, even if the cab 6 is moved upward to be mounted on the second floor entrance / exit 22 of the aircraft 20 as described above, the gradient of the auxiliary staircase 32 is hardly affected. Therefore, it is not necessary to design the length of the auxiliary staircase 32 to be long in order to attach it to the second floor entrance / exit 22 while keeping the gradient of the auxiliary staircase 32 at 40 degrees or less. Further, since the gradient of the auxiliary staircase 32 is not affected by the vertical movement of the cab 6, the auxiliary staircase 32 can be manufactured according to a predetermined standard. Furthermore, the tread plate 36 having a conventional link structure can be fixed to the beam plate 35a or 35b by welding. Therefore, according to the boarding bridge 12 which concerns on this embodiment, the structure of an auxiliary | assistant staircase can be made simpler and manufacture becomes easy. The means for fixing the tread plate 36 to the beam plate 35a or 35b is not limited to welding, and may be means such as adhesion. Further, the tread plate 36 and the girder plate 35a or 35b may be integrally formed.

  Further, the second floor entrance 22 is often provided near the attachment of the main wing of the aircraft 20, and there is a concern about interference between the auxiliary staircase 32, the main wing, the engine, and the like. However, according to the boarding bridge 12 according to the present embodiment, since the auxiliary staircase 32 is attached to the first tunnel 5a, it is possible to prevent interference with the main wing and the engine.

  Furthermore, after the boarding bridge 12 is mounted on the aircraft 20, various operations are performed on the aircraft 20 below the boarding bridge 12 and in the vicinity of the front end portion. Therefore, it is originally desirable that such a work space is secured. According to the boarding bridge 12 according to the present embodiment, the auxiliary staircase 32 is attached to the first tunnel 5a, so that the work space can be secured widely.

  In the boarding bridge 12 according to the present embodiment, the hinge pin 40 that connects the first tunnel 5a and the rotor 4 and the hinge pin 30a that connects the auxiliary staircase 32 and the floor member 30 protruding from the first tunnel 5a are close to each other. Designed to be Therefore, the fluctuation in the vertical direction of the hinge pin 30a due to the vertical movement of the cab 6 is minute. Therefore, the inclination of the auxiliary staircase 32 is not affected by the vertical movement of the cab 6, and it is possible to prevent the auxiliary staircase 32 from being elongated and to simplify the structure of the auxiliary staircase 32.

  In the boarding bridge 12 according to the present embodiment, a folding staircase is used as the auxiliary staircase 32. Therefore, the length of the auxiliary staircase 32 in the longitudinal direction of the boarding bridge 12 can be reduced. Further, in the boarding bridge 12 according to the present embodiment, the front end portion 32 d of the auxiliary staircase 32 is designed so that the front end portion 32 d is positioned behind the drive column 8 when the tunnel portion 5 is contracted to the minimum. Therefore, even if the tunnel portion 5 is contracted, the auxiliary staircase 32 does not interfere with the drive column 8. Therefore, there is no need to provide a space for housing the drive column 8 between the auxiliary staircase 32 and the tunnel portion 5a (in other words, there is no need to form a gap between the auxiliary staircase 32 and the tunnel portion 5a in plan view). ), It is easy to reduce the width of the boarding bridge 12 in the width direction.

  According to the boarding bridge 12 according to the present embodiment, the auxiliary staircase 32 is attached so that a part of the lower staircase portion 32 b is located below the tunnel portion 5. Therefore, it is possible to prevent the boarding bridge 12 from expanding in the width direction even as a folding staircase.

  In the boarding bridge 12 according to the present embodiment, the auxiliary staircase 32 is attached to the first tunnel 5a. Therefore, the auxiliary staircase 32 does not move in the expansion / contraction direction of the tunnel portion 5 with the expansion / contraction of the tunnel portion 5. Therefore, when the boarding bridge 12 is moved along with the attachment / detachment of the boarding bridge 12, the movement distance of the auxiliary staircase 32 may be shorter than the conventional one, and the burden on the auxiliary staircase 32 can be reduced. Further, it is possible to extend the life of the casters 60 and the like. Furthermore, since the amount of movement of the auxiliary staircase 32 is small, it is difficult for a mechanic working on the ground to get in the way.

  In the boarding bridge system 1 according to the present embodiment, the auxiliary staircase 31 of the boarding bridge 11 is attached to the distal end side of the tunnel portion 15, and the auxiliary staircase 32 of the boarding bridge 12 is attached to the root side of the tunnel portion 5. ing. Therefore, according to the boarding bridge system 1 according to the present embodiment, it is possible to prevent the auxiliary stairs 31 and the auxiliary stairs 32 of the adjacent boarding bridge 11 and the boarding bridge 12 from interfering when the aircraft 20 is mounted. . Therefore, the burden on the operator of the cab 6 can be reduced.

  In the boarding bridge system 1 according to the present embodiment, the auxiliary staircase 32 of the boarding bridge 12 is attached to the side surface opposite to the adjacent boarding bridge 11. Therefore, it is possible to prevent the auxiliary staircase 32 of the boarding bridge 12 from interfering with the boarding bridge 11. Therefore, according to the boarding bridge system 1 according to the present embodiment, it is possible to improve safety. However, in the present embodiment, the auxiliary staircase 32 is attached to the right side of the first tunnel portion. However, it can be attached to the left side as long as safety can be ensured.

  In the present embodiment, in the plan view, the first floor entrance / exit 21 to which the boarding bridge 11 is connected and the second floor entrance / exit 22 to which the boarding bridge 12 is connected are close to each other. However, the auxiliary staircase 31 of the boarding bridge 11 is attached to the side surface opposite to the adjacent boarding bridge 12. Therefore, the auxiliary staircase 31 of the boarding bridge 11 can be prevented from interfering with the boarding bridge 12. Therefore, according to the boarding bridge system 1 according to the present embodiment, it is possible to improve safety.

  In the present embodiment, the auxiliary staircase 32 is configured such that the lower staircase portion 32b is folded 180 degrees with respect to the upper staircase portion 32a. However, the folding direction of the lower staircase portion 32b is preferably such that the angle formed by the upper staircase portion 32a and the lower staircase portion 32b is 90 degrees or less, but is not limited thereto. For example, the lower staircase portion 32b may be folded back in a direction orthogonal to the upper staircase portion 32a.

  Further, the auxiliary staircase 32 may not necessarily be a folding type as long as safety can be ensured, and may be a straight type.

  Further, in the boarding bridge system 1 of the present embodiment, the boarding bridges 10 and 11 have the same configuration and are connected to different first-floor entrances and exits 21, respectively. It was configured to be connectable to any of the ports 22. However, the combination of boarding bridges in the boarding bridge system is not limited to the above, and various combinations are possible. For example, the boarding bridge 10 may have the same configuration as the boarding bridge 12 and the boarding bridge 11 may be omitted.

  As described above, the present invention is useful for a boarding bridge and a boarding bridge system having auxiliary stairs.

It is a top view of a boarding bridge system. It is a side view of the boarding bridge connected to the 2nd floor boarding gate of an aircraft. It is a top view of a folding type auxiliary staircase. It is a side view which shows the positional relationship of a folding-type auxiliary | assistant staircase and a drive column at the time of the tunnel part shrink | contracted. It is a rear view of a folding type auxiliary staircase. It is a side view of the boarding bridge connected to the 1st floor entrance / exit of an aircraft.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Boarding bridge system 2 Terminal building 4 Rotunda 5 Tunnel part 5a 1st tunnel (root side cylindrical body)
5b Second tunnel (tubular body)
5c 3rd tunnel (tubular body)
6 Cab 8 Drive column 9 Drive wheel 10 Boarding bridge (first boarding bridge)
11 Boarding bridge (first boarding bridge)
12 Boarding bridge (second boarding bridge)
15 Tunnel part 15a 1st tunnel 15b 2nd tunnel (front end side cylindrical body)
20 Aircraft 21 First floor boarding gate 22 Second floor boarding gate 31 Auxiliary stairs 32 Auxiliary stairs 32a Upper stairs (first stairs)
32b Lower staircase (second staircase)
50 Outrigger

Claims (11)

A rotander connected to the gate of the terminal building;
One end of the tunnel is connected to the rotor so as to be swingable in the vertical direction.
A cab that is provided at the other end of the tunnel portion and is attached to and detached from an entrance of an aircraft;
A lifting device that moves the cab up and down by moving the tunnel or the cab up and down;
An auxiliary staircase attached to the tunnel portion and connecting the tunnel portion and the ground surface;
The auxiliary staircase is a boarding bridge attached to a root-side cylindrical body connected to the rotor among a plurality of cylindrical bodies constituting the tunnel portion.   2. The boarding bridge according to claim 1, wherein the auxiliary staircase is attached to the rotor side with respect to a central portion in a longitudinal direction of the root side tubular body. The auxiliary stair includes at least a plurality of tread members and a pair of girders that support the tread members,
The boarding bridge according to claim 1 or 2, wherein the plurality of tread members are integrally formed with the girder plate or fixed to the girder so as not to rotate.   The auxiliary staircase includes a first staircase portion that is inclined downward in a first direction and a second staircase portion that is inclined downward in a second direction different from the first direction. The boarding bridge as described in any one of 1-3. The auxiliary staircase includes the first staircase portion and the second staircase portion,
An upper end portion of the first staircase portion is attached to a side surface of the root side tubular body,
The upper end of the second staircase is continuous with the lower end of the first staircase,
The first direction is a direction parallel to a direction in which the tunnel portion extends in a plan view,
The second direction is a direction intersecting so that an angle formed between a direction parallel to a direction in which the tunnel portion contracts or a direction parallel to a direction in which the tunnel portion contracts is 90 degrees or less in plan view. Item 5. A boarding bridge according to item 4. Directly or indirectly supporting the tunnel part, comprising a drive column with wheels attached to the lower end part,
The end portion on the cab side of the auxiliary staircase is located closer to the rotor side than the drive column with respect to a direction parallel to a direction in which the tunnel portion expands and contracts when the tunnel portion is fully contracted. The boarding bridge as described in any one of.   The boarding bridge according to claim 6, wherein no gap is formed between the auxiliary staircase and the tunnel portion in plan view.   The boarding bridge according to any one of claims 1 to 7, wherein at least a part of the auxiliary staircase is located below the tunnel portion and overlaps the tunnel portion in plan view. A first boarding bridge connected to the first floor boarding gate of an aircraft having a first floor boarding gate and a second floor boarding gate; and a second boarding bridge connected to the second floor boarding gate of the aircraft A boarding bridge system,
The boarding bridge system comprising at least the second boarding bridge according to any one of claims 1 to 8.   The boarding bridge system according to claim 9, wherein the auxiliary staircase of the second boarding bridge is attached to a side surface of the base-side cylindrical body that does not face the first boarding bridge. The first boarding bridge is:
A rotander connected to the gate of the terminal building;
One end is connected to the rotor, and a telescopic tunnel part composed of a plurality of cylindrical bodies,
A cab that is provided at the other end of the tunnel portion and is attached to and detached from an entrance of an aircraft;
An auxiliary staircase attached to the tunnel portion and connecting the tunnel portion and the ground surface;
With
The auxiliary staircase of the first boarding bridge is attached to a side surface that does not face the second boarding bridge in the front end side tubular body provided with the cab among the plurality of tubular bodies constituting the tunnel portion. The boarding bridge system according to claim 9 or 10, wherein:

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