JP4700661B2 - Boarding bridge - Google Patents

Description

  The present invention relates to a boarding bridge used for passengers getting on and off an aircraft, a ship or the like.

The boarding bridge is, for example, a tunnel-like walking passage that connects an airport terminal building and an aircraft, and enables passengers to get on and off directly between the terminal building and the aircraft.
The tip of the boarding bridge is connected to the boarding / alighting part of the aircraft, and a walking path is formed by the floor part of the boarding / alighting part and the passage of the boarding bridge.
Since the lower end of the door of the boarding / alighting part is located below the floor part of the boarding / alighting part, if the step between the floor part of the boarding / alighting part and the boarding bridge passage is completely eliminated, the door hits the passage. Since it contacts, it becomes difficult to open and close it.
The doors are opened and closed reliably, and allowance is given in consideration of the following accuracy to follow the boarding bridge while the aircraft moves up and down as passengers get on and off. For example, it is set to be lower by about several hundreds of millimeters than the position of the floor portion.

There is a risk that a passerby may trip over the step and fall, and in particular, a wheelchair passer-by could not easily get on and off the aircraft.
In order to solve this problem, for example, one disclosed in Patent Document 1 has been proposed.
This is provided with an elevating lifter in which the upper passage portion is movable in the vertical direction at the tip of the boarding bridge. With the passage part of the lifter lifter in the lowered position, after connecting the tip and opening the door, for example, when getting off the aircraft, raise the passage part as necessary, and the floor of the boarding / alighting part The height will be the same, and it will be able to move from the aircraft without steps. After moving to the passage part of the lifting lifter, the lifting lifter is lowered so as not to cause a difference in level from the floor on the rear side and moved to the terminal building. The reverse procedure is used when boarding an aircraft.

Further, the intermediate passage portion of the boarding bridge is composed of a plurality of passage bodies fitted in a telescopic manner, and the passage bodies expand and contract by moving relative to each other in the longitudinal direction. As a result, the variation in the distance between the terminal building and the aircraft is accommodated.
However, since the passage bodies are fitted in a nested manner, a step is generated in the passages of the adjacent passage bodies, and there is a risk that a passerby may trip over the step and fall.
As what cancels this level | step difference, what spans a step as shown by patent document 2, for example is used.

JP 2004-155257 A JP 2004-90770 A

By the way, since there are various sizes of aircraft doors, the floor width of the getting-on / off portion also has various sizes.
Since the width direction dimension of the thing shown by patent document 1 is single, in order to prevent the passage part of a raising / lowering lifter and a door from engaging at the time of a raise, the width dimension is the narrowest floor width. It is necessary to have a combined size.
For this reason, for example, when used for an aircraft having a large floor width at the boarding / alighting section, the width of the passage section of the lifter / lifter is narrower than the floor width of the boarding / alighting section, so that a gap is formed and an uneasy feeling is given to the passerby. In addition, if care is not taken when transferring from an aircraft (wide passage) to a narrow lifter, there is a risk of stepping off the lifter passage.

In addition, when the lifter is used, it is necessary to ascend and descend each time, so that smooth boarding / alighting is hindered.
Furthermore, the problem of the level | step difference between several channel bodies remains. For example, as shown in Patent Document 2, in the case where a step is bridged, the step is basically not eliminated, so that there is still a possibility that a passerby will stumble at the step portion and fall down. For wheelchair passers-by, it is difficult to pass.
In particular, with the recent progress of barrier-free, there is a further demand for a road that eliminates the steps.

  In view of the above problems, the present invention provides a boarding bridge that can adjust the width of a passage according to the floor width of a boarding / alighting portion of an aircraft, suppress anxiety of a passerby, and improve safety. With the goal.

In order to solve the above problems, the present invention employs the following means.
That is, the boarding bridge according to the present invention is provided at the distal end portion of the main body, has a fixed passage, and is connected to the boarding / alighting part of the aircraft, and the fixed passage extends to the boarding / alighting part side of the connection part A boarding bridge having a lifting and lowering passage section that is arranged so as to constitute a part and moves up and down a connection floor that is movable in the vertical direction and forms a connection passage that continues to the fixed passage when ascending. An extended connection floor that selectively forms an extended connection passage for extending the length in the width direction of the connection passage is provided on the side of the passage.

According to the present invention, the connecting portion is installed, that is, connected so as to cover the boarding / alighting portion of the aircraft in a state where the connecting floor and the extended connecting floor of the lift passage portion are in the lowered position. At this time, the connection floor and the extended connection floor are set and connected so that the lowered positions of the connection floor and the extended connection floor are lower than the floor portion of the boarding / alighting portion and the lower end position of the door.
Since the door of the aircraft does not contact the connection floor adjacent to the aircraft, the door can be opened without any problem. And after opening a door, a connection floor is raised and it and the floor part surface of a boarding / alighting part are made into the substantially same height position. Thereby, since a connection floor forms the connection channel | path connected to the floor part of a boarding / alighting part, a passerby, especially a wheelchair passerby can move easily without a level | step difference from an aircraft to a raising / lowering channel | path part. In addition, it is possible to suppress the occurrence of a situation such as a fall of a passer-by, a stumbling, and the passer-by can safely travel without worrying about these matters.
At this time, when the width direction length of the floor part of the getting-on / off part is larger than that of the connection floor, the extension connection passage is formed by the extension connection floor. In other words, a passage portion that is widened, that is, has a width corresponding to the length in the width direction of the floor portion of the getting-on / off portion, is formed between the connection floor of the lift passage portion and the extension connection floor.

In this way, the connecting passage and the extended connecting passage form a passage having a width corresponding to the width direction length of the floor portion of the getting-on / off portion, so there is a space cut out on the extension of the floor portion of the getting-on / off portion. Disappear. Thereby, an anxiety of a passerby can be suppressed. Further, when transferring from the aircraft to the connection floor, even if care is not taken, the possibility of stepping off can be prevented, so that safety can be improved.
It is desirable that the width in the width direction of the connection floor is a size that matches the width direction length of the floor portion of the narrowest boarding / alighting portion of the aircraft handled by the boarding bridge. Further, it is desirable that the size of the extended connection floor is set in consideration of the width direction length of the floor portion of the boarding / alighting portion in all aircraft handled by the boarding bridge.

  In the boarding bridge according to the present invention, the extended connection floor is composed of at least one elevating plate installed so as to be movable in the vertical direction on the lateral side of the elevating passage portion. To do.

According to this invention, when the width direction length of the floor part of a boarding / alighting part is larger than that of a connection floor, a raising / lowering board is raised and an extended connection channel | path is formed. In other words, the passage portion that is widened, that is, the width corresponding to the width direction length of the floor portion of the getting-on / off portion can be formed by the connecting floor of the elevating passage portion and the elevating plate.
Further, it is desirable that the number of lifting plates and the length in the width direction are set in consideration of the width direction length of the floor portion of the boarding / alighting section in all aircraft handled by the boarding bridge.
In this way, the lift plate is always in the lowered position where the opened door is located, so even if the aircraft and the boarding bridge move up and down relatively, the lift plate and the door will contact each other. There is little possibility of contact. Therefore, the possibility that the door or the lifting plate is damaged can be suppressed.
The number and size of the lifting plates are preferably set in consideration of the width direction length of the floor portion of the boarding / alighting portion in all aircraft handled by the boarding bridge.

  Moreover, in the boarding bridge according to the present invention, the extended connection floor is configured by a moving plate installed below the connection floor so as to be movable in the width direction.

According to the present invention, since the moving plate is installed at the lower part of the connection floor, the moving plate also rises as the connection floor rises so that the connection floor and the floor surface of the getting-on / off portion are at substantially the same height position. To do. And when the width direction length of the floor part of a boarding / alighting part is larger than that of a connection floor, a movement board is moved to the width direction and an extended connection channel | path is formed. In other words, the passage portion that is widened, that is, has a width corresponding to the width direction length of the floor portion of the getting-on / off portion can be formed by the connection floor of the lifting passage portion and the moving plate.
In this way, since the moving plate is advanced in the width direction, an extended connection floor having an arbitrary width can be formed. Therefore, since the connecting passage and the extended connecting passage having substantially the same width can be formed regardless of the width of the floor portion, the anxiety of the passerby can be suppressed and safety can be improved. it can.

  In the boarding bridge according to the present invention, the main body passage portion located behind the up-and-down passage portion is installed at a position higher than the lowered position of the up-and-down passage portion.

In this way, the main body passage portion located behind the elevating passage portion is installed at a position higher than the lowering position of the elevating passage portion, so that the main body passage portion that does not affect the opening and closing of the door is extended to the aircraft floor. It can be set to be located above.
In this state, when the door is opened and then the connection floor and the lift plate are raised to form the connection passage and the extension connection passage, a passage without a step from the aircraft to the terminal building can be formed.
In this way, a passage without a step can be formed from the aircraft to the terminal building, so that a passer-by can get on and off easily and safely.
In addition, ascending or descending the connecting floor and the lifting plate is performed only at the time of the first connection and at the time of the last disconnection, so that it does not hinder a passenger to get on and off, and can get on and off smoothly. .

  Further, the boarding bridge according to the present invention includes a plurality of cylindrical passage bodies that are fitted in a telescopic manner and expand and contract relative to each other in the longitudinal direction, and are positioned outside and inside the adjacent passage bodies. The outer passage body passage portion constituting the main body passage portion in the outer passage body is movable between a passage position set at a predetermined height position and an outer passage position located below the passage position. The length in the longitudinal direction of the outer passage body passage portion is changed in accordance with the movement distance associated with the relative movement with the inner passage body located inside the nest. It is characterized by.

According to the present invention, the outer passage body passage portion of the outer passage body located on the outer side is between the passage position set at a predetermined height position and the outside passage position located below the passage position. Since it is comprised so that it can move, the length of the outer side passage body channel | path part in a channel | path position can comprise a part of longitudinal direction of an outer side path body. Thereby, since the passage position in the outer passage body passage portion of the outer passage body can be set to a position that does not interfere with the inner passage body, the passage position of the outer passage body is the inner passage body passage constituting the main body passage portion of the inner passage body. It can be set to approximately the same height as the part.
Further, the length in the longitudinal direction of the passage position of the outer passage body is changed in accordance with the movement distance accompanying the relative movement with the inner passage body, that is, when the outer passage body moves away from the inner passage body. The length in the longitudinal direction of the passage position increases by the amount of movement, and the length in the longitudinal direction decreases when moving in the opposite direction, so that the passage portion can be continuously formed from the inner passage body to the outer passage body.
In this way, since the passage portions can be formed from the inner passage body to the outer passage body at substantially the same height and continuously, a passage without a step can be formed from the aircraft to the terminal building.
Thereby, it can suppress that situations, such as a fall of a passer-by and a trip, generate | occur | produce. In addition, passers-by can travel safely without worrying about these issues.

  In the boarding bridge according to the present invention, an opening / closing passage portion that selectively forms an extension portion of the passage position is provided at a portion where the outer passage body passage portion switches between the passage position and the outside passage position. It is characterized by that.

The opening / closing passage portion can cover the discontinuous portion of the passage position that is likely to occur at the portion where the outer passage body passage portion switches between the passage position and the outside passage position, and the continuity of the passage portion can be ensured reliably.
In addition, the opening / closing passage portion can be separated from the outer passage body passage portion when the outer passage body passage portion is moved between the passage position and the outside passage position, so that the outer passage body passage portion is damaged. Can be prevented.

  In the present invention, the outer passage body passage portion is constituted by a divided passage portion divided into a plurality of portions in the longitudinal direction.

  As described above, the outer passage body passage portion is composed of the divided passage portions divided into a plurality of portions in the longitudinal direction, so that the passage position and the outer passage position in the position changing portion can be obtained by bending or separating the divided passage portions. You can move between the two. Therefore, the division | segmentation channel | path part can be comprised with a rigid material, and can be set as the stable channel | path part.

According to the present invention, the extension connection floor that selectively forms the extension connection passage that extends the length in the width direction of the connection passage is provided on the side of the connection passage. A passage portion having a width corresponding to the width direction length of the floor portion of the boarding / alighting portion can be formed by the connection floor, so that anxiety of a passerby can be suppressed.
Further, when transferring from the aircraft to the connection floor, even if care is not taken, the possibility of stepping off can be prevented, so that safety can be improved.

In the following, a first embodiment of the present invention will be described with reference to FIGS. 1 to 11 as an example of a boarding bridge 1 in which a tunnel portion that expands and contracts is composed of two tunnels.
FIG. 1 is a front view showing an overall schematic configuration of the boarding bridge 1. FIG. 2 is a partial plan view showing the tip of the boarding bridge 1.
The boarding bridge 1 connects the airport terminal building and the aircraft 13, forms a passage for passengers (passengers) between the terminal building and the aircraft 13, and enables direct boarding / exiting.

The boarding bridge 1 includes a roton 5 fixed to a fixed bridge 3 leading to a terminal building, and a proximal tunnel (passage body, inner passage body) 7 connected to the roton 5 so as to be rotatable in a horizontal direction. A front end tunnel (passage body, outer passage body) 9 that is telescopically fitted to the front end side (aircraft 13 side) of the proximal end tunnel 7 and a head (connection portion) provided at the front end portion of the front end tunnel 9 11.
The roton 5, the proximal tunnel 7 and the distal tunnel 9 constitute the main body of the present invention.

A fixed leg 15 fixed to the ground is provided at the bottom of the rotander 5. A movable leg 17 is provided on the distal end side in the longitudinal direction of the distal end tunnel 9.
The boarding bridge 1 is supported by fixed legs 15 and movable legs 17.
The proximal tunnel 7 and the distal tunnel 9 each have a hollow long rectangular column shape. In the proximal tunnel 7 and the distal tunnel 9, steel structural beams are arranged on each side of the quadrangular column, and, for example, panels made of aluminum alloy are attached to both side surfaces and upper and lower surfaces so as to connect the structural beams. It is formed in a cylindrical shape. The panel may be made of resin, transparent material (resin, glass, etc.) and the like.

The cross-sectional area of the hollow portion of the front end tunnel 9 is configured to be larger than the cross-sectional area of the base end tunnel 7. The hollow portion of the distal end tunnel 9 is configured to guide the outer peripheral surface of the proximal end tunnel 7.
The front end tunnel 9 moves in the longitudinal direction N as the movable leg 17 moves, and expands and contracts the length of the boarding bridge 1. This expansion and contraction corresponds to a change in the distance between the roton 5 and the aircraft 13.

The head 11 is provided with a head main body 19 attached to the front end portion of the front end tunnel 9 and a connecting portion 21 that connects the head main body 19 and the boarding / alighting portion 23 of the aircraft 13.
The head body 19 has a substantially cylindrical shape with an axis extending in the vertical direction.
The connecting portion 21 has a substantially rectangular parallelepiped shape. As shown in FIG. 2, the connecting portion 21 is attached so as to be movable along the periphery of the head body 19 within a certain angular range.
A connecting body 25 that extends and contracts in the longitudinal direction N by a bellows structure at the distal end portion of the connecting portion 21, covers the periphery of the getting-on / off portion 23 so that the door 24 can be opened, and is closely attached along the outer plate of the aircraft 13. Is provided.

The rotander 5 is provided with a fixed passage 27 through which passengers pass. The proximal end tunnel 7 is provided with a fixed passage 29 through which passengers pass substantially the entire length.
The front end tunnel 9 is provided with a variable length passage (outer passage body passage portion) 31 in which the length of a passage portion (passage position) 33 through which a passenger passes can be adjusted.
The head main body 19 is provided with a fixed passage 35 through which passengers pass.
As shown in FIG. 3, an opening / closing step (opening / closing passage portion) 37 constituting a passage connecting to the passage passage portion 33 is provided at the rear end of the fixed passage 35 (on the fixed bridge 3 side).

The opening / closing step 37 is configured to swing up and down around the axis extending in the width direction toward the fixed passage 35 by the driving device 39 and the rear end side selectively contacts the passage portion 33. .
The fixed passages 27, 29, 35, the passage portion 33 of the variable length passage 31, and the upper surface of the opening / closing step 37 are configured to have a substantially constant height position.

The variable length passage 31 will be described with reference to FIG. 3 showing a longitudinal section.
The variable length passage 31 includes a pair of chains 41 provided so as to extend in the longitudinal direction on both sides of the front end tunnel 9, and a plurality of steps (divided passages) each having both ends fixed to the chain 41 to form a passage. Part) 43.
A sprocket 45 that meshes and guides the chain 41 is rotatably attached to the distal end side of the distal end tunnel 9.
The lower part of the sprocket 49 protrudes downward from the lower panel of the tip tunnel 9.

The chain 41 has a rear end side end fixed to the proximal end tunnel 7 and is attached so as to wind the sprocket 45. The free end of the chain 41 is firmly connected to the rope 47. The rope 47 is wound around a rope pulling device 49 attached to the lower part of the rear end portion of the front end tunnel 9.
The chain 41 is guided by a guide (not shown) so as to form a substantially linear locus except for the sprocket 45 portion.

The step 43 includes a main body 51 that is a plate having a substantially trapezoidal cross section, a carpet 53 that is attached to the large area side of the main body 45 over substantially the entire surface, and a main body 51 that is fixed to the small area of the main body 51. It is comprised from the reinforcement part 55 which reinforces the intensity | strength of this.
The reinforcing portion 55 is a hollow rectangular parallelepiped, and is disposed over substantially the entire length of the main body portion 45.
The main body 45 and the reinforcement 49 are made of an aluminum alloy.

The step 43 is attached to the chain 41 so that there is almost no gap between adjacent ones.
A step 43 located from the proximal tunnel 7 to the sprocket 45 forms the passage portion 33. And step 37 located in the part ahead of sprocket 45 is a passage part located in the position outside a passage of the present invention. That is, the sprocket 45 is switched between the passage portion 33 that is a passage position and the passage portion that is located at a position outside the passage.
Accordingly, the length of the passage portion 33 is changed corresponding to the position of the sprocket 45, that is, the position of the front end tunnel 9 in the longitudinal direction N.

  Moreover, since step 43 is divided | segmented into the longitudinal direction N, what adjoins in the part of the sprocket 45 can bend. Accordingly, the step 43 can move around the sprocket 45 as the sprocket 45 rotates. Therefore, the step 43 can be made of a rigid material, that is, an aluminum alloy, for example, and forms the passage portion 33 having a stable strength. be able to.

The height position of the chain 41 in the passage portion 33 is set so that the upper surface position of the carpet 53 in step 43 is substantially the same height as the upper surface position of the fixed passage 29.
As described above, since the passage portion 33 is disposed at a position where it does not interfere with the fixed passage 29, it can be set at a height position substantially the same as that of the fixed passage 29.
Further, as the leading end tunnel 9 moves in the longitudinal direction N, the length of the passage portion 33 changes by a length corresponding to the moving distance. Therefore, even if the leading end tunnel 9 moves, the opening / closing step 37 is always performed. The positional relationship in the longitudinal direction N is substantially the same.
Therefore, a path without a step can be continuously formed from the rotander 5 to the head 11.

FIG. 4 is a plan view showing the inside of the connecting portion 21.
A fixed passage 57 that is connected to the fixed passage 35 without a step is provided on the side of the head portion 19 of the connecting portion 21. An operation panel 59 for operating the boarding bridge 1 is provided on one side of the fixed passage 57 to connect the terminal building and the aircraft 13.
A floor panel 61 supported by the structural beam 63 is provided on the distal end side of the connecting portion 21. The floor panel 61 is a substantially rectangular plate member, which is not shown in detail, but is reinforced by a reinforcing member 65 made of steel.
A rubber cushioning member 67 is attached to the front end portion of the floor panel 61 over the entire width so as to alleviate the impact when contacting the aircraft 13.

The floor panel 61 portion of the connecting portion 21 is provided with an elevating floor portion (elevating passage portion) 69, a first elevating plate portion 71, and a second elevating plate portion 73.
FIG. 5 is a plan view showing the lower structure of the lifting floor portion 69, the first lifting plate portion 71, and the second lifting plate 73 portion. 6 and 7 are sectional views taken along line XX in FIG. 8 and 9 are YY sectional views of FIG.

The elevator floor 69 includes an elevator floor (connection floor) 75, an elevator drive unit 77, a support floor 79, and a guide unit 81.
The elevating floor 75 is a plate-like body and has a rectangular corner cut out in a rectangular shape. The elevating floor 75 is installed such that the cut-out short width portion 83 is located on the tip end side, that is, on the getting-on / off portion 23 side of the aircraft 13.
The short width portion 83 constitutes a connection passage 84 that is continuous with the floor portion 85 of the getting on / off portion 23.
In addition, the width direction length of the short width part 83 is set to a size according to the width direction length of the floor part 85 of the narrowest boarding / alighting part 23 in the aircraft 13 handled by the boarding bridge 1.
The raising / lowering floor 75 is reinforced by attaching reinforcing members 87 made of mold steel vertically and horizontally.

The support floor 79 is installed below the floor panel 61 in a substantially parallel manner and supports the lift floor 75, the lift drive unit 77, and the like.
The support floor 79 is supported by a structural beam 63 and the like, and is reinforced by a reinforcing member 89 made of steel.
The lifting drive unit 77 includes a lifting jack 91, a lifting motor 93, a driving force transmission shaft 95, and a driving force transmission chain 97.
Four lifting jacks 91 are used, and are arranged below the lifting floor 75 so as to be positioned at four corners of a substantially rectangular shape.

The raising / lowering jack 91 includes a gear box 99 in which a worm and a worm wheel are housed, a screw shaft 101 that is screwed to the axial center position of the worm wheel of the gear box 99 along the axis, and a screw shaft 101 The screw cover 103 covers the lower part. The upper end of the screw shaft 101 is fixed to the lower part of the lifting floor 75.
The drive jack 91 is arranged so that the screw shaft 101 extends along the vertical direction, and a gear box 99 is fixedly mounted on the support floor 79.
The drive jack 91 is configured such that when the worm is rotated, the worm wheel rotates, and the screw shaft 101 screwed with the worm wheel moves in the vertical direction.

Two driving force transmission shafts 95 are provided, one for synchronizing the worms in the two lifting jacks 91 on the head body 19 side, and the other for synchronizing the worms in the two lifting jacks 91 on the tip side. And connected to rotate.
The driving force transmission chain 97 is attached so as to rotationally drive the two driving force transmission shafts 95 in synchronization.
The drive motor 93 is mounted on the support floor 79 so that its output shaft rotationally drives the worm of one lifting jack 91 on the head body 19 side.
When the driving motor 93 is operated, the worms of the four lifting jacks 91 rotate in synchronization with each other via the driving force transmission shaft 95 and the driving force transmission chain 97. It will move up and down (lift) while maintaining the installed state (for example, a substantially parallel state).

The guide portions 81 are installed at four locations, and are respectively fixed to the lower portions of the elevating floor 75 so as to extend in the vertical direction, and can be freely rotated at positions below the floor panel 61. The guide roller 107 is attached. The guide roller 107 is in contact with two adjacent surfaces facing the outside of the guide rod 105.
As a result, the raising / lowering floor 75 is guided in four directions, and therefore moves up and down without moving in the in-plane direction.
FIG. 7 shows a state where the elevating floor 61 is located at the lowered position. The floor panel 61 is notched at a portion where the reinforcing member 87 of the elevating floor 75 is disposed.

The first elevating plate portion 71 is provided with a first elevating plate (extended connection floor, elevating plate) 109, and the second elevating plate portion 73 is provided with a second elevating plate (extended connection floor, elevating plate) 111.
The first lifting plate 109 is disposed at a position adjacent to the short width portion 83 of the lifting floor 75. The second lifting plate 111 is disposed adjacent to the opposite side of the short width portion 83 of the first lifting plate 109. The length in the longitudinal direction N of the first lifting plate 109 and the second lifting plate 111 is substantially the same as that of the short width portion 83.
The first elevating plate 109 and the second elevating plate 111 are positioned so as to be flush with the short width portion 83, and the length in the width direction of the connection passage 84 is expanded, that is, the connection passage 84 is extended in the width direction. The extension connecting passage 86 is formed.
The lengths in the width direction of the first elevating plate 109 and the second elevating plate 111 are the same size, but they may be different, and a suitable number may be provided.
That is, these numbers and widths are set in consideration of the width direction length of the floor portion 85 of the boarding / alighting portion 23 in all the aircrafts 13 handled by the boarding bridge 1.

Since the first elevating plate portion 71 and the second elevating plate portion 73 are composed of substantially the same members, the suffix “a” or “b” is added after the reference, except for the first elevating plate 109 and the second elevating plate 111. "Is attached and the member of the 1st raising / lowering board part 71 and the member of the 2nd raising / lowering board part 73 will be distinguished. Hereinafter, when it is not necessary to distinguish between the first elevating plate portion 71 or the second elevating plate portion 73, only the reference numerals will be described without attaching a suffix.
8 and 9 are cross-sectional views of the second elevating plate portion 73, but the description of the structure and the reference numerals in the drawings are not suffixed.

In addition to the first lift plate 109 and the second lift plate 111, the first lift plate portion 71 and the second lift plate portion 73 include a lift plate driving jack 113, a support floor 115, a lift plate guide portion 117, Is provided.
The support floor 115 is installed below the floor panel 61 in an approximately parallel manner and supports the lifting plate driving jack 113 and the like.
The support floor 115 is supported by a pair of beam members 119 installed so as to extend in the width direction.

The lifting plate driving jack 113 includes a gear box 121 in which a worm and a worm wheel are housed, a cylinder portion 123 that houses a nut that rotates integrally with the worm wheel of the gear box 121, and an axis of the nut of the cylinder portion 123. The screw shaft 125 is screwed to the center position along the axis, and a motor 127 that rotationally drives the worm of the gear box 121. The upper end of the screw shaft 125 is attached to the lower portion of the second elevating plate 111 (first elevating plate 109) at a substantially central position of the planar shape.
The lifting plate driving jack 113 is arranged so that the screw shaft 101 extends in the vertical direction, and an attachment portion provided at the lower portion of the gear box 121 is attached on the support floor 115.
The drive jack 91 is configured such that when the worm is rotated, the worm wheel rotates, and the screw shaft 101 screwed with the worm wheel moves in the vertical direction.

The elevating plate guides 117 are installed at two locations, and are respectively cylindrical guide bars 129 fixedly attached to the lower portions of the second elevating plate 111 (first elevating plate 109) so as to extend in the vertical direction, The guide member 131 is attached to the beam member 119. The guide member 131 is provided with a hole penetrating in the vertical direction, and a guide rod 129 is inserted into the hole and guided.
The two lifting plate guides 117 are installed at substantially symmetrical positions with the lifting plate driving jack 113 interposed therebetween.

The operation of the boarding bridge 1 according to the present embodiment described above will be described.
The boarding bridge 1 stands by in a state in which the distal end tunnel 9 is largely fitted to the proximal end tunnel 7 as shown by a two-dot chain line in FIG.
At this time, the lift floor 75 is lowered to the lowered position shown in FIG. 7, and the first lift plate 109 and the second lift plate 111 are lowered to the lowered position as shown in FIG. .
When the aircraft 13 arrives, the movable leg 17 operates, and the tip tunnel 9 moves toward the aircraft 13. That is, the boarding bridge 1 is extended.

  When the tip tunnel 9 moves toward the aircraft 13, the sprocket 49 also moves in the same direction, so that the force applied to one end of the chain 41 fixed to the proximal tunnel 7 overcomes the traction force of the rope traction device 49 and the chain 41 is sprocketed. 45 is rotated toward the proximal tunnel 7 side. As the sprocket 45 rotates, the chain 41 moves from the lower part to the upper part.

As the chain 41 moves, the step 43 moves to the passage passage portion 33, so that the length of the passage passage portion 33 in the longitudinal direction N is automatically increased by the distance traveled by the sprocket 45, that is, the tip tunnel 9.
At this time, the opening / closing step 37 is retracted to a position indicated by a two-dot chain line in FIG. 3 by the driving device 39 so that the carpet 53 of the moving step 43 is not rubbed and damaged.

When the head 11 approaches the boarding / alighting part 23 of the aircraft 13 and the connecting body 25 of the connecting part 21 reaches a predetermined position facing the boarding / alighting part 23, the extension and movement of the boarding bridge 1 are stopped.
At this time, the height position of the fixed passage 57 of the head body 19 is made to substantially coincide with the height position of the floor portion 85 of the getting-on / off portion 23.
In this state, the connecting body 25 is extended to the aircraft 13 side, and its tip is brought into close contact with the outer plate of the aircraft 13.

When the head 11 is connected to the aircraft 13 in this way, the door 24 of the boarding / exiting portion 23 is opened.
At this time, the raising / lowering floor 75, the first raising / lowering plate 109, and the second raising / lowering plate 111 are lowered to the lowered position, that is, at a position sufficiently lower than the floor portion 85, so that the door 24 is not hindered. Can be opened.
After opening the door, according to the width of the floor 85, the lift floor 75, the first lift plate 109 and the second lift plate 111 are raised, and their height positions are shown in FIG. 6 or FIG. As shown in FIG. 5, the floor portion 85, that is, the height position of the fixed passage portion 57 is made to coincide.

As a result, a passage having the same height position is formed from the floor 85 of the boarding / exiting portion 23 to the fixed passage 57, so that a passerby, in particular, a wheelchair passerby easily moves from the aircraft 13 to the head 11 without a step. be able to. In addition, it is possible to suppress the occurrence of a situation such as a fall of a passer-by, a stumbling, and the passer-by can safely travel without worrying about these matters.
Further, the connecting passage formed by the short width portion 83 of the lifting floor 75 and the extended connecting passage formed by the first lifting plate 109 and the second lifting plate 111 match the length in the width direction of the floor portion 85 of the getting on / off portion 23. Since a passage having a wide width is formed, there is almost no space cut out on the extension of the floor portion 85 of the getting-on / off portion 23. Thereby, an anxiety of a passerby can be suppressed. And when transferring from the aircraft 13 to the connection passage and the extension connection passage, it is possible to prevent the possibility of stepping off even if care is not taken, so safety can be improved.

Next, selection of necessary ones of the first lifting plate 109 and the second lifting plate 111 will be described.
As shown in FIG. 10, when the width B1 of the floor 85 is narrower than the sum of the width BN of the short width portion 83 of the lift floor 75 and the width BS of the first lift plate 109, the lift floor Raise only 75.
As shown in FIG. 11, the width B2 of the floor portion 85 is larger than the sum of the width BN of the short width portion 83 of the lifting floor 75 and the width BS of the first lifting plate 109, and the second lifting plate. If it is narrower than the sum of the width BS of 111, the elevating floor 75 and the first elevating plate 109 are raised.

When the width of the floor portion 85 is larger than the sum of the width BN of the short width portion 83 of the lift floor 75, the width BS of the first lift plate 109, and the width BS of the second lift plate 111, the lift floor 75, the first lifting plate 109 and the second lifting plate 111 are raised.
In this way, at a position where the open door 24 exists, at least a member (for example, the first elevating plate 109, the first elevating plate 109, which is a height position substantially lower than the height position of the floor portion 85). Since only the second lifting plate 111) exists, even if the aircraft 13 and the boarding bridge 1 relatively move up and down, there is almost no possibility that the door 24 abuts against these members. Therefore, the possibility that the door 24 or the member of the boarding bridge 1 is damaged can be suppressed.

  At this time, the width BS of the first elevating plate 109 and the second elevating plate 111 is preferably set in consideration of the width of the floor portion of the boarding / exiting portion in all the aircrafts 13 handled by the boarding bridge 1. Also, it is desirable that these numbers be set in the same manner.

  Further, the opening / closing step 37 is lowered to make the passage portion 33 and the fixed passage 35 continuous. Since the chain 41 is pulled by the rope pulling device 49, a tension in the longitudinal direction N acts on the step 43 located in the passage portion 33, and a more stable passage is formed.

Thus, the passage portions can be formed continuously from the proximal end tunnel 7 to the head main body 19 at substantially the same height. Therefore, a passage without a step from the aircraft 13 to the fixed bridge 3 (terminal building), that is, a barrier-free passage can be formed.
Thereby, it can suppress that situations, such as a fall of a passer-by and a trip, generate | occur | produce. In addition, passers-by can travel safely without worrying about these issues. Therefore, it is possible to get on and off easily for wheelchair passers-by.

The weight load applied to the aircraft 13 increases or decreases due to loading and unloading of luggage or passengers getting on and off. As the weight load increases or decreases, the position of the boarding / exiting portion 23 (floor portion 85) of the aircraft 13 changes with respect to the ground, so that a step is generated between the floor portion 85 and the connection passage 84.
For this reason, the boarding bridge 1 has an auto leveler (not shown) that detects the positional relationship between the floor 85 and the connection passage 84. Then, the positional relationship between the floor portion 85 and the connection passage 84 is detected by the auto leveler, and the boarding bridge 1 is moved up and down based on the detected positional relationship, and a step generated between the floor portion 85 and the connection passage 84 is detected. I try to make it smaller.

In this case, for example, as shown in FIG. 12, it is conceivable to connect the fixed passage 57 and the elevating floor 75 with a connecting plate 133. The connecting plate 133 is swingable by a hinge 135 at the tip of the fixed passage 57.
In this way, if a vertical displacement occurs between the fixed passage 57 and the lift floor 75, the connecting plate 133 swings. If the displacement is not large, the gap between the fixed passage 57 and the lift floor 75 is not significant. It is possible to prevent the level difference from being generated on the surface.
Therefore, when a slight shift occurs in the positional relationship between the floor portion 85 and the connection passage 84 in the vertical direction, only the lifting floor 75 is moved up and down so that a step between the floor portion 85 and the connection passage 84 does not occur. it can. In other words, the elevation floor 75 can be moved up and down, and the height of the floor 85 and the connection passage 84 can be finely adjusted quickly. Thereafter, the boarding bridge 1 is moved up and down to adjust for a large movement.
Thereby, a path without a step from the aircraft 13 to the fixed bridge 3 (terminal building), that is, a barrier-free path can be always formed with respect to the relative vertical movement of the aircraft 13 and the boarding bridge 1.

When the passage of the passerby is completed, the lift floor 75, the first lift plate 109, and the second lift plate 111 that have been raised are lowered to the lowered position, and the door 24 is closed.
Next, the connecting body 25 of the head 11 is contracted and detached from the aircraft 13. Then, the front end tunnel 9 is moved to the rotander 5 side. At this time, the opening / closing step 37 is retracted upward.
When the tip tunnel 9 moves toward the rotander 5, the sprocket 45 also moves in the same direction, so that the chain 41 rotates the sprocket 45 toward the head 11 by the traction force of the rope traction device 49. The rotation of the sprocket 45 moves the chain 41 from the upper part to the lower part. As the chain 41 moves, the step 43 moves downward from the passage portion 33, so the length in the longitudinal direction N of the passage portion 33 is automatically shortened by the distance traveled by the sprocket 45, that is, the tip tunnel 9. Become.

In the present embodiment, the extension connecting passage 86 is formed by the first elevating plate 109 and the second elevating plate 111, but is not limited to this.
For example, as shown in FIG. 13 and FIG. 14, a slide floor (extended connection floor, moving plate) 137 may be used.
The slide floor 137 is a substantially rectangular plate member, and is attached by a guide wheel 139 so as to be movable in the width direction along the lower surface of the elevating floor 75.

The front end portion of the slide floor 137 is positioned substantially coincident with the front end portion of the lift floor 75, and the length in the longitudinal direction N is longer than that of the short width portion 83.
The slide floor 137 is moved in the width direction by an electric jack 141 fixedly attached to the elevating floor portion 69, and is configured to appear and disappear from the short width portion 83.
In the slide floor 137, a portion that protrudes from the short width portion 83 (connection passage 84) forms an extended connection passage 86.

Thus, the slide floor 137 can form the extended connection passage 86 having an arbitrary length in the width direction by the electric jack 141.
Therefore, since the connecting passage 84 and the extended connecting passage 86 having substantially the same width can be formed regardless of the width of the floor portion 85, it is possible to suppress anxiety of a passerby and improve safety. Can be made.

In addition, this invention is not limited to the said embodiment, In the range which does not deviate from the summary of this invention, it can change suitably.
For example, the present invention can be applied to the boarding bridge 1 in which an appropriate number of intermediate tunnels are provided between the proximal tunnel 7 and the distal tunnel 9.

1 is a front view showing an overall schematic configuration of a boarding bridge according to an embodiment of the present invention. It is a fragmentary top view which shows the front-end | tip part of the boarding bridge concerning one Embodiment of this invention. It is a longitudinal cross-sectional view of the variable-length channel | path concerning one Embodiment of this invention. It is a top view which shows the inside of the connection part concerning one Embodiment of this invention. It is a top view which shows the lower structure of the raising / lowering floor part, 1st raising / lowering board part, and 2nd raising / lowering board part concerning one Embodiment of this invention. It is XX sectional drawing of FIG. 4 which shows the raising state of the raising / lowering floor concerning one Embodiment of this invention. It is XX sectional drawing of FIG. 4 which shows the descent | fall state of the raising / lowering floor concerning one Embodiment of this invention. It is YY sectional drawing of FIG. 4 which shows the raising state of the 2nd raising / lowering board concerning one Embodiment of this invention. It is YY sectional drawing of FIG. 4 which shows the descent | fall state of the 2nd raising / lowering board concerning one Embodiment of this invention. It is a top view which shows the relationship between the boarding / alighting part concerning one Embodiment of this invention, a raising / lowering floor, etc. FIG. It is a top view which shows the relationship between the boarding / alighting part concerning one Embodiment of this invention, a raising / lowering floor, etc. It is sectional drawing which shows another embodiment of the raising / lowering follower part concerning one Embodiment of this invention. It is a top view which shows another embodiment of the boarding / alighting part concerning one Embodiment of this invention. It is ZZ sectional drawing of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Boarding bridge 7 Base end tunnel 9 Front end tunnel 11 Head 13 Aircraft 23 Boarding part 24 Door 27 Fixed passage 29 Fixed passage 31 Variable length passage 33 Passage passage part 35 Fixed passage 37 Opening / closing step 41 Chain 43 Step 45 Sprocket 57 Fixed passage 69 Elevation Floor portion 75 Elevating floor 84 Connection passage 85 Floor portion 86 Extension connection passage 109 First elevating plate 111 Second elevating plate 137 Slide floor N Longitudinal direction

Claims (7)

A connecting portion that is provided at the tip of the main body, has a fixed passage, and is connected to the landing portion of the aircraft;
Elevating and lowering a connecting floor that is arranged to form an extension part of the fixed passage on the side of the boarding / alighting portion of the connecting portion and is movable in the vertical direction to form a connecting passage that is connected to the fixed passage when ascending. A boarding bridge having a passage portion,
A boarding bridge characterized in that an extension connection floor for selectively forming an extension connection passage for extending the width direction length of the connection passage is provided on a side of the connection passage.   2. The boarding bridge according to claim 1, wherein the extended connection floor is composed of at least one lifting plate installed so as to be movable in a vertical direction on a lateral side of the lifting passage portion. .   2. The boarding bridge according to claim 1, wherein the extended connection floor is configured by a moving plate installed at a lower portion of the connection floor so as to be movable in a width direction.   4. The boarding according to claim 1, wherein the main body passage portion located behind the elevating passage portion is installed at a position higher than a lowered position of the elevating passage portion. 5. bridge. It is fitted in a nested manner, and has a plurality of cylindrical passage bodies that move relative to each other in the longitudinal direction to expand and contract,
Of the adjacent passage bodies, the outer passage body passage portion constituting the main body passage portion in the outer passage body located outside is disposed below the passage position set to a predetermined height position and the passage position. It is configured to be able to move between positions outside the aisle,
The length in the longitudinal direction of the outer passage body passage portion is changed in accordance with the movement distance associated with the relative movement with the inner passage body located inside the nest. The boarding bridge according to any one of claims 1 to 4.   6. The open / close passage portion that selectively forms an extension portion of the passage position at a portion where the outer passage body passage portion switches between the passage position and the outside passage position. Boarding bridge.   The boarding bridge according to claim 5 or 6, wherein the outer passage body passage portion is constituted by a divided passage portion divided into a plurality of portions in the longitudinal direction.

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