JP2017132373A - Boarding bridge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a boarding bridge capable of hardly generating a gap between an external surface of an aircraft in the upper part at the tip of a canopy part when connecting to a small-sized or medium-sized aircraft.SOLUTION: A boarding bridge includes a head part 14 having an opening for passengers to go in and out, and a canopy part 30 provided in the head part 14 and connected to an aircraft. The canopy part 30 has a hood part 33 provided on the extension of the wall and ceiling of the head part 14, a frame part 32 provided along the end part of the hood part 33, and a drive part 34 for moving the upper part of the frame part 32 in the front and back direction. The frame part 32 has in the tip parts on both side parts of the hood part 33, long two spring steels 35 installed in the vertical direction from a floor part 39 of the head part 14 to the ceiling part of the hood part 33. The two spring steels 35 have in advance a form in which the upper end part is positioned ahead of a length direction intermediate part of the spring steel 35, and the upper part is curved.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a boarding bridge.

  The boarding bridge is installed at the airport and is used when passengers get on and off between the terminal building and the aircraft. The boarding bridge is provided with a head part connected to the aircraft at the tip of the passage body, and the head part turns so that the opening of the head part faces the entrance / exit of the aircraft, and the floor part enters and exits in the front-rear direction. Or has a function of moving up and down.

  A canopy portion having a hood portion is provided at a tip portion located on the aircraft side of the head portion. The hood part is formed in an accordion shape on the extension of the wall and ceiling of the head part, and the upper part can be extended forward, that is, on the aircraft side by a driving device. Thereby, when the opening part of the canopy part inclines forward and downward and the canopy part comes into contact with the outer surface of the aircraft, entry of wind and rain is prevented.

  In Patent Document 1 below, the invention relates to a closure of a boarding bridge corresponding to the above-described canopy portion, and the contact opening portion of the closure that contacts the airframe has a pair of vertical substrates extending in the vertical direction. It is described that three or more plates separated from each other are connected to each other, and each component plate has a lower bending rigidity as the lower one.

Japanese Utility Model Publication No. 3-28997

  Conventionally, a pair of linear spring steels are arranged in the vertical direction at the tip of the canopy part, and the upper part of the spring steel is moved forward by the drive device. As a result, the upper part of the hood part extends forward, and the opening of the canopy part tilts forward and downward. When the canopy portion is connected to a large aircraft, the outer diameter of the fuselage has a small curvature, so that the spring steel is easily deformed along the outer surface of the airframe, and a gap is not easily formed between the tip of the canopy portion and the outer surface of the airframe. Note that the spring steel of the canopy portion is covered with a bag-like contact material containing a sponge. FIG. 15 shows a canopy portion 52 provided on the front end side of the head portion 51. The canopy portion 52 includes a contact member 53, a frame portion 54, a hood portion 55, a driving device 56, and the like, and the frame portion 54 is made of spring steel 57.

As shown in FIG. 15, when connecting to a small or medium-sized aircraft 11 having a relatively large curvature, when the rigidity of the spring steel 57 of the canopy portion 52 is high and the force applied by the drive device 56 to the spring steel 57 is weak, the spring The steel 57 cannot be deformed along the outer surface of the fuselage. Therefore, compared with the case of connecting to a large aircraft, a gap is likely to be formed between the upper surface and the lower portion of the tip of the canopy portion 52 and the outer surface of the airframe.
Here, the small or medium-sized aircraft 11 refers to a aircraft whose outer diameter is in the range of about 2.5 m to about 3.5 m, for example.

  On the contrary, if the force applied to the spring steel 57 by the driving device 56 is excessive, the force transmitted from the canopy portion 52 to the outer surface of the airframe becomes too large, and the outer surface of the airframe of the aircraft 11 may be deformed.

  Conventionally, the spring steel 57 has a linear shape, and since it is necessary to apply a force to the spring steel 57 to such an extent that the outer surface of the aircraft 11 is not deformed, the amount of bending of the spring steel 57 is limited. Therefore, when connecting to a small or medium-sized aircraft having a relatively large curvature, it is difficult for the floor portion 58 of the head portion 51 to approach the aircraft 11 even when the tip of the canopy portion 52 is bent and in contact with the outer surface of the aircraft body.

  The present invention has been made in view of such circumstances, and when connecting to a small or medium-sized aircraft, it is difficult to form a gap between the outer surface of the aircraft at the top of the tip of the canopy portion. The purpose is to provide a boarding bridge capable of the above.

In order to solve the above problems, the boarding bridge of the present invention employs the following means.
That is, the boarding bridge according to the present invention includes a head portion having an opening through which passengers enter and exit, and a canopy portion provided at a tip side of the head portion, the tip portion being connected to an aircraft. A top part provided on an extension of the wall and ceiling of the head part, a frame part provided along an end part of the top part, and an upper part of the frame part connected to the frame part in the front-rear direction And the frame portion is a long 2 installed in the vertical direction from the floor portion of the head portion to the ceiling portion of the hood portion at the tip of both sides of the hood portion. The two plate members have an upper end portion positioned in front of the intermediate portion in the longitudinal direction of the plate member, and an upper portion of the plate member has a curved shape or a bent shape in advance.

According to this configuration, the tip portion of the canopy portion is connected to the aircraft, and at the tip portion, the two plate members are installed in the vertical direction from the floor portion to the ceiling portion, and the upper portion of the frame portion is moved in the front-rear direction by the drive portion. Moved to.
Since the upper end portion of the plate material is located in front of the middle portion in the longitudinal direction of the plate material and the upper portion of the plate material has a curved shape or a bent shape in advance, the upper end portion of the tip portion of the canopy portion is in contact with the outer surface of the aircraft. It becomes difficult to produce a gap between them.
In addition, since the upper part of the plate material has a curved shape or a bent shape in advance, the drive unit does not apply excessive force to the frame part, and the upper end part at the tip part of the canopy part is between the outer surface of the aircraft. It becomes difficult to produce a gap in

  In the above invention, the two plate members may have a shape in which a lower end portion is positioned in front of a middle portion in the length direction of the plate member and a lower portion of the plate member is curved or bent.

  According to this configuration, since the lower end portion of the plate material is located in front of the intermediate portion in the length direction of the plate material, and the lower portion of the plate material has a curved shape or a bent shape in advance, the intermediate portion in the length direction of the plate material is When the fuselage of the aircraft is pressed, even if the amount of bending of the plate material is relatively small, a gap is hardly generated between the lower surface of the tip portion of the canopy portion and the outer surface of the aircraft.

  In the above invention, a head portion having an opening through which passengers get in and out, and a canopy portion provided at a tip of the head portion, the tip portion being connected to an aircraft, the canopy portion is a wall of the head portion. And a top part provided on the extension of the ceiling, a frame part provided along an end of the top part, and a drive part connected to the frame part and moving the upper part of the frame part in the front-rear direction. The frame portion has two long plate members installed in the vertical direction from the floor portion of the head portion to the ceiling portion of the hood portion at the front ends of both sides of the hood portion, The two plate members have a lower end portion positioned in front of a middle portion in the length direction of the plate member, a lower portion of the plate member having a curved shape or a bent shape in advance, and an upper portion of the plate member having a linear shape. The plate thickness is thinner than the intermediate portion in the longitudinal direction of the plate material.

According to this configuration, the tip portion of the canopy portion is connected to the aircraft, and at the tip portion, the two plate members are installed in the vertical direction from the floor portion to the ceiling portion, and the upper portion of the frame portion is moved in the front-rear direction by the drive portion. Moved to.
Since the upper part of the plate material is thinner than the middle part in the longitudinal direction of the plate material and the rigidity is relatively low, when the force is applied by the drive unit, the upper surface at the tip of the canopy unit It becomes difficult to produce a gap between them.
In addition, since the rigidity of the upper end of the plate material is relatively low, a gap is formed between the drive unit and the outer surface of the aircraft at the upper part of the tip of the canopy unit without applying excessive force to the frame unit. It becomes difficult.
Furthermore, since the lower end portion of the plate material is positioned in front of the middle portion in the length direction of the plate material, and the lower portion of the plate material has a curved shape or a bent shape in advance, the middle portion in the length direction of the plate material has the fuselage of the aircraft. When pressed, even if the amount of bending of the plate material is relatively small, a gap is unlikely to form between the outer surface of the aircraft at the lower portion of the tip portion of the canopy portion.

  In the above invention, the upper portion of the plate material is one piece above the intermediate portion in the longitudinal direction, and the plate thickness above the lower portion is thinner.

  According to this configuration, the plate material has a single upper portion with respect to the middle portion in the length direction, and can be handled as an integrated one. The difference in the thickness direction of the plate thickness is formed by cutting a plate material, for example. Portions having different thicknesses may be formed in a plurality of stages in the length direction of the plate material, or may be formed so that the thickness continuously changes in the length direction of the plate material.

  In the above invention, the plate member is formed by connecting a plurality of divided plate members having different plate thicknesses, and the upper divided plate member is thinner than the lower divided plate member.

  According to this configuration, since the plate material is configured by connecting the divided plate materials having a short length, it is easy to handle the plate material during assembly, and it is easy to form a plate material whose thickness is changed in the length direction. . Adjacent divided plate materials may be connected by overlapping the end portions with bolts or the like, or by matching the end portions and overlapping other end plates with both ends and connecting with bolts or the like. .

  In the above invention, the frame portion is further connected to an upper portion of the plate material, and further includes an upper beam member installed in a horizontal direction along the end portion of the ceiling portion of the hood portion between the two plate materials. The driving unit may be connected to the two plate members or the upper beam member.

  According to this configuration, the frame portion has two plate members and an upper beam member, and the drive unit is connected to the two plate members or the upper beam member to move the upper portion of the frame portion in the front-rear direction.

  In the above invention, the head part is attached to the fixed cover part fixed to the floor part of the head part, the moving cover part moving in the front-rear direction with respect to the fixed cover part, and the floor part of the head part, A passage portion that can be moved in and out of the floor portion of the head portion, and the canopy portion is provided at a tip of the movable cover portion.

  According to this configuration, the passage portion attached to the floor portion of the head portion can enter and exit from the floor portion of the head portion. For example, when the boarding bridge 1 is connected to a small machine, the head portion is Connect the floor of the small aircraft and the floor of the small machine entrance. The moving cover portion is movable with respect to the fixed cover portion, and the tip portion of the canopy portion can be brought into contact with the outer surface of the aircraft when the moving cover portion approaches the outer surface of the aircraft. And by using the board | plate material in a canopy part mentioned above, even when a boarding bridge connects to a small machine, it becomes difficult to produce a clearance gap between the body outer surface in the upper part and lower part in the front-end | tip part of a canopy part.

  ADVANTAGE OF THE INVENTION According to this invention, when connecting with a small or medium-sized aircraft, it can make it difficult to produce a clearance gap between the outer surface of an aircraft in the upper part in the front-end | tip of a canopy part.

It is a side view showing the boarding bridge concerning a 1st embodiment of the present invention. It is a top view which shows the boarding bridge which concerns on 1st Embodiment of this invention. It is a front view which shows the head part and canopy part of the boarding bridge which concern on 1st Embodiment of this invention. It is a side view which shows the head part and canopy part of the boarding bridge which concern on 1st Embodiment of this invention. It is a side view which shows the spring steel of the canopy part of the boarding bridge which concerns on 1st Embodiment of this invention. It is a side view which shows the head part and canopy part of the boarding bridge which concern on 1st Embodiment of this invention, and shows the state connected with the small or medium-sized aircraft. It is a side view which shows the head part and canopy part of the boarding bridge which concern on 1st Embodiment of this invention, and shows the state connected with the large sized aircraft. It is a side view which shows the spring steel of the canopy part of the boarding bridge which concerns on 2nd Embodiment of this invention. It is a side view which shows the connection part of the split plate material of the spring steel of the canopy part of the boarding bridge which concerns on 2nd Embodiment of this invention. It is a side view which shows the connection part of the split plate material of the spring steel of the canopy part of the boarding bridge which concerns on 2nd Embodiment of this invention. It is a side view which shows the head part and canopy part of the boarding bridge which concern on 3rd Embodiment of this invention, Fig.11 (a) shows the state connected with the large sized aircraft, FIG.11 (b) shows small size. Or it shows the state connected with the medium-sized aircraft. It is a front view which shows the head part and canopy part of the boarding bridge which concern on 3rd Embodiment of this invention. It is a side view which shows the 1st modification of the head part of the boarding bridge which concerns on 3rd Embodiment of this invention, and a canopy part, Fig.13 (a) shows the state connected with the large sized aircraft, FIG. b) shows a state connected to a small or medium-sized aircraft. It is a side view which shows the head part and canopy part of the boarding bridge which concern on 3rd Embodiment of this invention, FIG.14 (a) shows the state connected with the large sized aircraft, FIG.14 (b) shows small size. Or it shows the state connected with the medium-sized aircraft. It is a side view which shows the head part and canopy part of the conventional boarding bridge, and shows the state connected with the small or medium-sized aircraft.

Embodiments according to the present invention will be described below with reference to the drawings.
[First Embodiment]
Hereinafter, a first embodiment of the present invention will be described with reference to FIG.
As shown in FIGS. 1 and 2, the boarding bridge 1 according to the first embodiment of the present invention connects a passenger facility (for example, a terminal building 10) built at an airport and an aircraft 11 (see FIG. 6). Passengers of the aircraft 11 can pass through the internal passage and are used when the passengers get on and off the aircraft 11.

  The boarding bridge 1 according to the present embodiment is provided on the surface side where the terminal building 10 faces the runway, and is connected to the entrance / exit of the terminal building 10. The entrance / exit of the terminal building 10 to which the boarding bridge 1 is connected is at a height higher than the ground surface of the runway, for example.

  For example, as shown in FIGS. 1 and 2, the boarding bridge 1 includes a turning part 12, a passage body 13, a head part 14, a traveling part 15, and the like.

  As shown in FIG. 1, the turning part 12 includes a cylindrical part 16 and a building side connecting part 17 surrounded by a bottom part, a wall part, and a roof part, a leg part 18 and the like.

  The swivel unit 12 has a space in which the passengers can pass inside the cylindrical unit 16 and the building side connection unit 17, one side is connected to the terminal building 10, and the other side is connected to the passage body 13. The floor part inside the cylindrical part 16 and the building side connection part 17 of the turning part 12 and the floor part of the entrance / exit of the terminal building 10 are substantially horizontal and are provided at the same height.

  As for the turning part 12, the cylindrical part 16 and the building side connection part 17 are supported by the leg part 18. As shown in FIG. The passage body 13 can turn around the turning portion 12.

  The swivel unit 12 includes a support pin 19 that inclines the passage body 13 at a connection portion between the swivel unit 12 and the passage body 13. Thereby, the passage body 13 can incline the floor part of the passage body 13 with respect to the floor part inside the cylindrical part 16 of the turning part 12, that is, with respect to the floor part of the entrance / exit of the terminal building 10. The support pin 19 is provided so as to be able to turn around the cylindrical portion 16 together with the passage body 13.

  The passage body 13 is linear and has a cylindrical shape surrounded by a bottom portion, a wall portion, and a roof portion. A space provided with a passage through which passengers can pass is formed inside the passage body 13. One end portion of the passage body 13 is connected to the turning portion 12, for example, the wall surface of the cylindrical portion 16, and the other end portion of the passage body 13 is connected to the head portion 14 and supported by the traveling portion 15.

  The passage body 13 has a configuration that can be expanded and contracted in the length direction. For example, the passage body 13 has a so-called telescopic structure, and includes a first cylinder body 13A and a second cylinder body 13B that enters and exits the first cylinder body 13A. One end side of the first cylinder 13A is connected to the turning portion 12, and the other end side of the first cylinder 13A is inserted into the inside from one end side of the second cylinder 13B. One end side of the second cylinder 13B is movable along the outer wall of the first cylinder 13A, and the other end side of the second cylinder 13B is connected to the head portion 14. When the second cylinder 13B moves relative to the first cylinder 13A, the length of the passage body 13 expands and contracts.

  The head portion 14 has a space through which passengers can pass, and one side is connected to the tip of the passage body 13. On the other side of the head portion 14, an opening is formed to serve as a boarding gate for passengers to enter and exit, and can be connected to the aircraft 11. The head part 14 continuously connects the floor part of the passage body 13 and the floor part of the entrance / exit of the aircraft 11. The entrance / exit of the head portion 14 is turnable with respect to the passage body 13. Thereby, regardless of the extending direction of the passage body 13, the entrance / exit of the head part 14 can be directed to the aircraft 11 side.

  The head portion 14 is provided with a portal-shaped canopy portion 30 on the tip side that comes into contact with the airframe. Details of the canopy unit 30 will be described later.

  The head portion 14 may be adjustable by raising and lowering the floor portion 39 of the head portion 14 according to the height of the floor portion at the entrance of the aircraft 11. Further, the length of the head portion 14 from the floor portion of the passage body 13 to the floor portion of the entrance / exit of the aircraft 11 may be adjustable by expansion and contraction. Thereby, even when there is a difference in height between the floor portion of the passage body 13 and the floor portion of the entrance / exit of the aircraft 11, even when there is a gap, the head portion 14 compensates for the difference in height. , Can close the gap.

The head unit 14 has a function that can automatically adjust the height and length of the floor 39 of the head unit 14 in response to the vertical movement of the aircraft 11 using a sensor or a mechanical mechanism. Also good.
Note that the existing technology can be applied to the various functions of the head unit 14 described above, and a detailed description of the configuration is omitted here.

As shown in FIG. 1, the traveling unit 15 includes a wheel unit 20 and a support body 21.
The wheel part 20 has a turning part 22 that can turn. Thereby, the traveling unit 15 can freely move, and the traveling unit 15 can be moved in the circumferential direction around the turning unit 12 described above, or can be moved in the length direction of the passage body 13.

  The support body 21 is connected to the wheel section 20 at the lower end portion and is connected to the passage body 13 at the upper portion, and supports the load of the passage body 13. The support body 21 has two pillar portions 23 and supports the passage body 13 between the pillar portions 23. The column part 23 in the support body 21 of the traveling part 15 includes an elevating part 24 having a function capable of ascending and descending, and the traveling part 15 supports while adjusting the height of the passage body 13.

Hereinafter, the canopy unit 30 provided in the head unit 14 will be described with reference to FIGS. 1, 3, and 4.
The canopy unit 30 is provided on the distal end side of the head unit 14 and can contact the outer surface of the fuselage of the aircraft 11. The size of the opening of the canopy unit 30 is larger than the entrance / exit of the aircraft 11, and the floor 39 of the head unit 14 and the walls and ceiling of the canopy unit 30 can surround four sides of the entrance / exit of the aircraft 11. The size of the opening of the canopy unit 30 is determined according to the entrance / exit of the aircraft 11 to be connected.

The canopy portion 30 includes a contact material 31, a frame portion 32, a hood portion 33, a drive portion 34, and the like.
The contact material 31 is installed on the wall of the canopy 30 and the tip of the ceiling. The contact material 31 has a flexible sponge having a thickness greater than or equal to a predetermined thickness and a bag portion containing the sponge, and covers the frame portion 32 so that the frame portion 32 does not directly contact the outer surface of the aircraft 11. Further, since a sponge is used for the contact material 31, it is possible to prevent a concentrated load from being locally applied to the outer surface of the aircraft 11. Further, since the sponge is a thick material that expands and contracts due to external force, there is a slight difference in the stop position of the canopy unit 30 with respect to the outer surface of the aircraft 11, and the left and right approach distances of the canopy unit 30 with respect to the outer surface of the aircraft 11. Generation of gaps due to differences can be prevented.

  As shown in FIG. 3, the frame portion 32 is a gate-shaped plate-like member, and includes two spring steels 35 and one upper beam member 40. The frame portion 32 is provided along the end portion of the hood portion 33, and is installed between the end portion of the hood portion 33 and the contact material 31. Each spring steel 35 is made of steel, for example, and is installed in the vertical direction from the floor portion 39 of the head portion 14 to the ceiling portion of the hood portion 33 along the end portion of the wall portion of the hood portion 33. The upper beam member 40 is connected to the upper portion of the spring steel 35 and is installed between the two spring steels 35 in the horizontal direction along the end portion of the ceiling portion of the hood portion 33. The spring steel 35 is an example of a plate material, and the plate material of the present invention is not limited to steel.

  The hood part 33 is made of cloth, for example, and is formed in a bellows shape on the extension of the wall and the ceiling of the head part 14. Since the hood portion 33 is formed in a bellows shape, it can be expanded and contracted in the front-rear direction of the canopy portion 30 according to the bending of the spring steel 35.

  The drive unit 34 is connected to the upper portion of the frame unit 32 and is driven by an air pressure mechanism, a hydraulic mechanism, or an electric motor. The drive part 34 moves the upper part of the frame part 32 to the front or back of the canopy part 30. When the upper part of the frame part 32 moves forward, the hood part 33 expands, and when the upper part of the frame part 32 moves rearward, the hood part 33 contracts. The drive part 34 moves the frame part 32 forward, inclines the opening part of the canopy part 30 to the front downward, and makes the contact material 31 contact an outer surface of a body. At this time, the drive unit 34 drives the frame 32 with an appropriate force that does not form a gap between the contact material 31 and the outer surface of the machine body and does not deform the outer surface of the machine body.

Next, with reference to FIG.4 and FIG.5, a pair of spring steel 35 arrange | positioned in the up-down direction among the frame parts 32 is demonstrated.
As shown in FIG. 4, the spring steel 35 has a curved shape in advance in a state where it does not receive a force from the drive unit 34 and does not receive a force from the outer surface of the body. In other words, the spring steel 35 has an upper end portion and a lower end portion positioned in front of the middle portion in the length direction of the spring steel 35, and an upper portion and a lower portion having a curved shape in advance. The curved shape of the spring steel 35 is determined according to the size (outer diameter) of the fuselage of the aircraft 11 to be connected.

  For example, the spring steel 35 has a length of about 3 m, and as shown in FIG. 5, the upper part of the length La of ¼ to ３ of the total length L and ¼ to 1 of the total length. The lower part of the / 3 length Lb is a curved shape, and the remaining intermediate portion in the length direction is a straight line. Although FIG. 5 shows a case where the upper and lower portions of the spring steel 35 are curved curves, the present invention is not limited to this example, and the upper and lower portions of the spring steel 35 include several linear members. It may be bent at a place and may have a bent shape having a plurality of bent portions.

  When the canopy unit 30 is brought into contact with the outer surface of the airframe, as shown in FIG. 6, the drive unit 34 moves the upper part of the frame unit 32 forward and tilts the opening of the canopy unit 30 forward and downward. Then, the contact member 31 provided at the tip of the canopy unit 30 is brought into contact with the outer surface of the machine body with an appropriate force of the drive unit 34.

  In the present embodiment, the upper end portion of the spring steel 35 is located in front of the intermediate portion in the length direction of the spring steel 35, and the upper portion of the spring steel 35 has a curved shape in advance. In the upper part, a gap is less likely to occur between the outer surface of the fuselage.

  In addition, since the upper portion of the spring steel 35 has a curved shape in advance, the drive unit 34 does not apply excessive force to the spring steel 35, and the upper portion at the tip of the canopy unit 30 is between the outer surface of the airframe. A gap is less likely to occur.

  Furthermore, the lower end part of the spring steel 35 is located in front of the middle part in the longitudinal direction of the spring steel 35, and the lower part of the spring steel 35 has a curved shape in advance. Therefore, even when the tip of the canopy portion 30 moves forward and the intermediate portion in the longitudinal direction of the spring steel 35 presses the fuselage of the aircraft, even if the amount of bending of the spring steel 35 is relatively small, the canopy portion In the lower part of the front end portion of 30, a gap is hardly formed between the outer surface of the body.

  When a large aircraft is included as the aircraft 11 to be connected, the curved shape of the spring steel 35 described above is the height direction when the tip of the canopy portion 30 is brought into contact with the outer surface of the aircraft as shown in FIG. It is necessary to determine so that a gap does not occur in the intermediate portion.

  In addition, although 1st Embodiment mentioned above demonstrated the case where the lower end part of the spring steel 35 was located ahead rather than the intermediate part of the length direction of the spring steel 35, and the lower part had a curve shape previously, this invention is described. It is not limited to this example. The lower part of the spring steel 35 does not have a curved shape, and may be a straight line arranged on an extension of the middle part in the length direction.

[Second Embodiment]
Next, a boarding bridge 1 according to a second embodiment of the present invention will be described.
The boarding bridge 1 according to the present embodiment is different in the configuration of the spring steel 35 in the frame portion 32 of the canopy portion 30. Since other components are the same as those in the first embodiment, detailed description thereof will be omitted below.

  As shown in FIGS. 4 and 5, the spring steel 35 of the first embodiment has an upper end portion and a lower end portion positioned in front of the middle portion in the length direction of the spring steel 35, and an upper portion and a lower portion are curved in advance. However, in this embodiment, as shown in FIG. 8, in the spring steel 35, only the lower end portion is positioned forward of the middle portion in the length direction of the spring steel 35, and only the lower portion has a curved shape. Have in advance.

  The spring steel 35 has a shape in which the lower part is curved in advance in a state in which no force is received from the drive unit 34 and no force is received from the outer surface of the machine body. The curved shape of the spring steel 35 is determined according to the size (outer diameter) of the fuselage of the aircraft 11 to be connected.

For example, the spring steel 35 has a length of about 3 m, and as shown in FIG. 8, the lower part of the length Lb of 1/4 to 1/3 of the total length L is curved, and the remaining part. Is linear.
The spring steel 35 has a linear shape in which the upper part of the length La of 1/4 to 1/3 of the total length L is on the extension of the intermediate portion in the length direction, but is thicker than the intermediate portion in the length direction. Is thin.
In addition, in FIG. 8, although the case where the lower part of the spring steel 35 was curving curved was shown, this invention is not limited to this example, and the lower part of the spring steel 35 bends a linear member in several places, A bent shape having a plurality of bent portions may be used.

  Since the upper part of the spring steel 35 is thinner than the middle part in the longitudinal direction of the spring steel 35 and has a relatively low rigidity, it is easy to bend when a force is applied by the drive part 34, and the tip part of the canopy part 30 In the upper part, a gap is less likely to occur between the outer surface of the aircraft.

  Further, since the rigidity of the upper portion of the spring steel 35 is relatively low, the drive unit 34 does not apply excessive force to the spring steel 35, and the upper portion at the tip of the canopy portion 30 is between the outer surface of the airframe. A gap is less likely to occur.

  Furthermore, the lower end part of the spring steel 35 is located in front of the middle part in the longitudinal direction of the spring steel 35, and the lower part of the spring steel 35 has a curved shape in advance. Therefore, even when the tip of the canopy portion 30 moves forward and the intermediate portion in the longitudinal direction of the spring steel 35 presses the fuselage of the aircraft, even if the amount of bending of the spring steel 35 is relatively small, the canopy portion In the lower part of the front end portion of 30, a gap is hardly formed between the outer surface of the body.

  The spring steel 35 is formed of a single sheet over the entire length in the length direction, or at least an upper part of the middle part in the length direction of the spring steel 35, and more than the middle part and the lower part in the length direction of the spring steel 35. The top plate is thin.

  Thereby, the spring steel 35 can be handled as what was integrated. The difference in the thickness direction of the plate thickness is formed by cutting a plate material that is a material of the spring steel 35, for example. In addition, the spring steel 35 may be formed so that a part having different thicknesses is formed in a plurality of stages in the length direction and the thickness is continuously changed in the length direction.

  In addition, the spring steel 35 does not necessarily need to be formed by one piece, and as shown in FIGS. 9 and 10, a plurality of divided plate members 41 having a short length may be connected in the length direction. .

  The plurality of divided plate members 41 have different plate thicknesses and are connected to each other at or near the end of each divided plate member 41. At this time, it connects so that the plate | board thickness of the division | segmentation board | plate material 41 upper than the division | segmentation board | plate material 41 of a lower part may become thin.

  Thereby, since the plate material is constituted by connecting the divided plate materials 41 having a short length, the handling at the time of assembling the spring steel 35 is facilitated. Moreover, it is easy to form the spring steel 35 in which the plate thickness is changed in the length direction. As shown in FIG. 9, the adjacent divided plate members may be connected by overlapping the end portions with bolts or the like, or as shown in FIG. The eye plates 42 may be overlapped and connected by bolts or the like.

[Third Embodiment]
Next, with reference to FIG.11 and FIG.12, the boarding bridge 1 which concerns on 3rd Embodiment of this invention is demonstrated.
In said 1st and 2nd embodiment, although the head part 14 provided in the front-end | tip part of the channel | path body 13 demonstrated the case where the wall and the ceiling were fixed, this invention is not limited to this example. Hereinafter, differences from the first and second embodiments will be described, and detailed description of overlapping components will be omitted.

  In the boarding bridge 1 according to the present embodiment, the head unit 14 further includes a fixed cover unit 36 and a movable cover unit 37 in which the canopy unit 30 is provided. The moving cover part 37 is movable forward and backward with respect to the fixed cover part 36 of the head part 14 fixed to the floor part 39.

  The fixed cover portion 36 has a space through which passengers can pass and has one end connected to the tip of the passage body 13. The fixed cover portion 36 includes a plate-like wall portion and a roof portion, and is fixed to the floor portion 39 of the head portion 14.

  The movable cover portion 37 includes a plate-like wall portion and a roof portion, and has a space in which passengers can pass. The moving cover part 37 has a structure which can move so that the outer side of the fixed cover part 36 may be covered, for example. The other end side of the fixed cover portion 36 is inserted into one end side of the movable cover portion 37. The canopy unit 30 described in the first and second embodiments is provided on the other end side of the movable cover unit 37.

  Further, as shown in FIGS. 11 and 12, a passage portion 38 is provided in the floor portion 39 of the head portion 14. The passage portion 38 is attached to the lower portion of the floor portion 39 of the head portion 14 via the connection member 48. When the boarding bridge 1 is connected to a small or medium-sized aircraft, as shown in FIG. 11B, the passage portion 38 moves while turning outward from the lower side of the floor portion 39 of the head portion 14, for example. It is installed between the unit 14 and the entrance of the aircraft 11. On the other hand, as shown to Fig.11 (a), when the boarding bridge 1 connects with a large sized machine, it is accommodated under the floor part 39. FIG. In addition, the installation method of the channel | path part 38 is not restricted to a thing by turning, You may be performed by moving back and forth in the length direction from the floor part 39. FIG.

  When the boarding bridge 1 is connected to a small aircraft 11, the head unit 14 interferes with the door / stairs 43 and the stair rail 44 of the entrance / exit provided in the aircraft 11, so the head unit 14 is placed on the outer surface of the aircraft. It may not be possible to make them close.

  In that case, the floor part 39 of the head part 14 and the floor part of a small machine entrance / exit are connected using the channel | path part 38 mentioned above. Thus, the passenger can get on and off between the aircraft 11 and the head unit 14 without the head unit 14 interfering with the door-use stairs 43 and the stairs handrail 44.

  At this time, in the case of the head portion 14 of the first embodiment in which the canopy portion 30 does not move, even if the opening portion of the canopy portion 30 is tilted forward and downward by the drive portion 34, the canopy portion 30 is extended to the outer surface of the small aircraft. The tip does not reach, leaving a gap, preventing the entry of wind and rain.

  On the other hand, while the passage portion 38 is installed between the floor portion 39 of the head portion 14 and the floor of the small machine entrance / exit, the moving cover portion 37 approaches the outer surface of the airframe so that the tip portion of the canopy portion 30 is moved. Appropriate contact with the outer surface of the small aircraft. And when the boarding bridge 1 connects with a small machine by using the spring steel 35 of the frame part 32 in the canopy part 30 demonstrated in 1st and 2nd embodiment, in the front-end | tip part of the canopy part 30 In the upper part and the lower part, a gap is hardly generated between the outer surface of the body.

In addition, although embodiment mentioned above demonstrated the case where the movable cover part 37 consists of a plate-shaped wall part and a roof part, this invention is not limited to this example.
For example, the movable cover part 37 may be configured by a movable frame 45 and a hood 46 as shown in FIG. The moving frame 45 is provided between, for example, two horizontal members 61 that are provided on the wall portion side and arranged in the horizontal direction from the fixed cover portion 36 to the front end portion on the aircraft 11 side, and the two horizontal members 61. A gate-shaped member 62 having a gate-shaped shape is provided. The moving frame 45 is movable forward and backward with respect to the fixed cover portion 36 of the head portion 14 fixed to the floor portion 39, and has a configuration capable of moving outside the fixed cover portion 36, for example.

The hood 46 includes a bellows-like wall portion and a roof portion, and has a space in which passengers can pass. The other end side of the fixed cover portion 36 is inserted into one end side of the hood 46. The other end side of the hood 46 is connected to the gate-shaped material 62 of the moving frame 45. The canopy unit 30 described in the first and second embodiments is provided on the distal end side of the moving frame 45.
Also in this case, the moving cover portion 37 approaches the outer surface of the aircraft body while the passage portion 38 is installed between the floor portion 39 of the head portion 14 and the floor of the small machine entrance, so that the tip portion of the canopy portion 30 is moved. Appropriate contact with the outer surface of the small aircraft.

  Moreover, the moving cover part 37 may be comprised from the above-mentioned moving frame 45 and the expansion-contraction cover part 47, as shown in FIG. The extendable cover part 47 includes a plurality of covers 63 and has a space inside which passengers can pass. Each cover 63 has a plate-like wall portion and a roof portion, and one end portion of one cover 63 is arranged in a nested manner so that the other end side of the adjacent cover 63 is inserted therein. .

The other end side of the fixed cover portion 36 is inserted into one end side of the telescopic cover portion 47. The other end side of the elastic cover part 47 is connected to the moving frame 45. The canopy unit 30 described in the first and second embodiments is provided on the distal end side of the moving frame 45.
Also in this case, the moving cover portion 37 approaches the outer surface of the aircraft body while the passage portion 38 is installed between the floor portion 39 of the head portion 14 and the floor of the small machine entrance, so that the tip portion of the canopy portion 30 is moved. Appropriate contact with the outer surface of the small aircraft.

DESCRIPTION OF SYMBOLS 1: Boarding bridge 10: Terminal building 11: Aircraft 12: Turning part 13: Passage body 13A: 1st cylinder 13B: 2nd cylinder 14: Head part 15: Traveling part 16: Cylindrical part 17: Building side connection part 18 : Leg portion 19: support pin 20: wheel portion 21: support body 22: turning portion 23: column portion 24: elevating portion 30: canopy portion 31: contact material 32: frame portion 33: hood portion 34: drive portion 35: spring Steel 36: Fixed cover portion 37: Moving cover portion 38: Passage portion 39: Floor portion 40: Upper beam member 41: Split plate member 42: Eye plate 43: Door combined stairs 44: Stair handrail 45: Moving frame 46: Top 47: Telescopic cover part 48: Connection member 51: Head part 52: Canopy part 53: Contact material 54: Frame part 55: Top part 56: Drive device 57: Spring steel 58: Floor part 61: Horizontal material 62: Portal material 63: Cap Over

Claims (7)

A head portion having an opening through which passengers enter and exit;
A canopy portion provided on the tip side of the head portion, the tip portion being connected to the aircraft;
With
The canopy part is
A hood provided on an extension of the wall and ceiling of the head,
A frame provided along an end of the hood,
A drive unit connected to the frame unit and moving an upper part of the frame unit in the front-rear direction;
Have
The frame portion has two long plate members installed in the vertical direction from the floor portion of the head portion to the ceiling portion of the hood portion at the front ends of both sides of the hood portion,
The two plate members are boarding bridges having an upper end portion positioned in front of an intermediate portion in a longitudinal direction of the plate member and an upper portion of the plate member having a curved shape or a bent shape in advance.   2. The boarding bridge according to claim 1, wherein the two plate members have a lower end portion positioned in front of an intermediate portion in a length direction of the plate member and a lower portion of the plate member having a curved shape or a bent shape in advance. A head portion having an opening through which passengers enter and exit;
A canopy portion provided at a tip of the head portion, the tip portion being connected to an aircraft;
With
The canopy part is
A hood provided on an extension of the wall and ceiling of the head,
A frame provided along an end of the hood,
A drive unit connected to the frame unit and moving an upper part of the frame unit in the front-rear direction;
Have
The frame portion has two long plate members installed in the vertical direction from the floor portion of the head portion to the ceiling portion of the hood portion at the front ends of both sides of the hood portion,
The two plate members have a lower end portion located in front of a middle portion in the length direction of the plate member, and a lower portion of the plate member has a curved shape or a bent shape in advance,
A boarding bridge in which an upper portion of the plate material is linear and a plate thickness is thinner than an intermediate portion in a length direction of the plate material.   4. The boarding bridge according to claim 3, wherein an upper portion of the plate material is one piece above the lengthwise intermediate portion, and a plate thickness above the lower portion is thinner.   The boarding bridge according to claim 3, wherein a plurality of divided plate members having different plate thicknesses are connected to each other, and a plate thickness of the divided plate member above the lower divided plate member is thinner. The frame portion is further connected to an upper portion of the plate material, and further includes an upper beam member installed between the two plate materials in a horizontal direction along an end portion of the ceiling portion of the hood portion,
The boarding bridge according to claim 1, wherein the driving unit is connected to the two plate members or the upper beam member. The head portion is
A fixed cover portion fixed to the floor portion of the head portion;
A moving cover portion that moves in the front-rear direction with respect to the fixed cover portion;
A passage portion attached to the floor portion of the head portion and capable of entering and exiting the floor portion of the head portion;
Have
The boarding bridge according to any one of claims 1 to 6, wherein the canopy part is provided at a tip of the movable cover part.

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