JP7491968B2 - Boarding Arcade - Google Patents

Description

Application of Article 30, Paragraph 2 of the Patent Act: In accordance with a request from the client, SAS Co., Ltd., MHI Aerospace Production Co., Ltd. installed and opened to the public the boarding arcade invented by MHI Aerospace Production Co., Ltd. employees Yasuhiro Takemoto and Shigenobu Saito at Prefectural Nagoya Airport on July 11, 2022, the day of construction.

This application relates to a boarding arcade that protects passengers from the wind and rain as they leave the airport building and walk along the airport apron to the boarding gate.

Patent document 1 describes an access tunnel to an aircraft. The access tunnel is made up of a number of tunnel members, each of which has a longitudinal axis and is conically tapered in the direction of the longitudinal axis so that the tunnel members can be pushed into each other.

US Patent Application Publication No. 2016/0376030

However, in the passage tunnel described in Patent Document 1, if each tunnel member receives a lateral force while stretched out like a passage, there is a risk that the lateral force will cause each tunnel member to move laterally.

The present application aims to provide a boarding arcade that can maintain the state of the passage as much as possible even when each tunnel member is stretched out like a passage and receives a lateral force.

In order to achieve the above object, the boarding arcade of the present application comprises a plurality of tunnel members each having two arch-shaped frames provided at both ends of each tunnel member, the front end frame being large enough to include the rear end frame when the front end frame is stacked on the rear end frame in the fore-and-aft direction, a cover that covers at least a ceiling portion spanning the front end frame and the rear end frame, and wheels provided on both legs of each of the two frames, and a balancer provided on at least one of the plurality of tunnel members, wherein the rearmost tunnel member of the plurality of tunnel members is anchored, each of the plurality of tunnel members and the adjacent tunnel member in front of it are connected by a rope of a predetermined length, and the tunnel member provided with the balancer and the adjacent tunnel member in front of it are further connected by a wire rope of the balancer, and when each of the plurality of tunnel members is stored, the adjacent tunnel member in front of it is connected by a wire rope of the balancer, When a tunnel member is moved rearward and the adjacent tunnel member in front of it enters inside the tunnel member behind it and is stored, and each of the stored multiple tunnel members is extended, among the multiple tunnel members, each of the tunnel members other than the tunnel member on which the balancer is provided and the tunnel member adjacent to it in front of it moves to a position regulated by a rope of a predetermined length, the tunnel member on which the balancer is provided and the tunnel member adjacent to it in front of it move to a position within the position regulated by the rope of the predetermined length and to a position where the wire rope of the balancer is extended, and the balancer pulls the tunnel member adjacent to the front of the tunnel member on which the balancer is provided via the wire rope with a predetermined force, thereby controlling so that a tension of a predetermined tension or more is applied to all of the ropes connected between the tunnel member on which the balancer is provided and each of the tunnel members other than the tunnel member adjacent to it in front of it and the tunnel member adjacent to it in front of it, and the tunnel member located furthest forward of the multiple tunnel members is towed by the towing vehicle via the exit member, and among the multiple tunnel members towed and pulled out by the towing vehicle, the tunnel member located furthest forward is maintained in its position with the towing vehicle acting as an anchor .

According to the present application, when each of the stored tunnel members is extended, the balancer pulls the tunnel member adjacent to the tunnel member on which the balancer is provided with a predetermined force via the wire rope, thereby controlling all of the ropes connected between the tunnel member on which the balancer is provided and each of the tunnel members other than the tunnel member adjacent to the tunnel member in front of it and the tunnel member adjacent to the tunnel member in front of it to be tensioned with a predetermined tension or more. Therefore, even if each tunnel member is subjected to a lateral force while stretched out like a passage, it is possible to maintain the state of the passage as much as possible.

1A and 1B are diagrams showing a boarding arcade according to an embodiment of the present application in a stored state and an extended state. FIG. 2 is a more detailed plan view of the boarding arcade of FIG. 1 in a stowed state. FIG. 2 is a more detailed plan view of the boarding arcade of FIG. 1 when extended. FIG. 2 is a perspective view showing an example of the boarding arcade of FIG. 1 when extended. 2 is an enlarged perspective view showing the vicinity of a balancer included in the boarding arcade of FIG. 1.

The following describes the embodiments of the present application in detail with reference to the drawings.

1 shows a boarding arcade 1 according to one embodiment of the present application in a retracted state and an extended state. The boarding arcade 1 guides passengers who have left the airport building to the boarding gate while protecting them from rain and wind when they walk along the airport apron or the like to the boarding gate of the aircraft. In this embodiment, as shown in FIG. 1, the boarding arcade 1 is connected to an entrance member 20 and an exit member 30 on either side of the boarding arcade 1, and a towing vehicle 40 is connected to the exit member 30. The entrance member 20 is fixed to a predetermined position of the airport building B by an anchor 21, as will be described later with reference to FIG. 2, and further, the tunnel member 10a included in the boarding arcade 1 is also fixed by an anchor 21, as will be described later with reference to FIG. 2. Therefore, when the exit member 30 connected to the boarding arcade 1 in the stowed state is towed by the towing vehicle 40 and moved to the passenger step A1 of the aircraft A, the boarding arcade 1 extends accordingly, forming a passageway that connects the airport building B and the passenger step A1 of the aircraft A while protecting them from the wind and rain.

Figure 4 is a perspective view showing the boarding arcade 1 in Figure 1 when extended in more detail. As shown in Figure 4, the boarding arcade 1 is mainly composed of multiple tunnel members 10a to 10l. In this embodiment, the boarding arcade 1 is composed of 12 tunnel members 10a to 10l, but this number varies depending on the distance between the passenger step A1 of the aircraft A and the installation position of the entrance member 20. Note that when the boarding arcade 1 is not in use, that is, when passengers are not being guided, it can be stored by shortening the length when extended as described above. Figure 2 shows the boarding arcade 1 in Figure 1 when stored in more detail. Specifically, each of the tunnel members 10a to 10l can be stored by shortening the length when extended by inserting the front tunnel member 10b into the rear tunnel member 10a in the case of adjacent tunnel members in the front and rear, for example, the tunnel member 10b and the tunnel member 10a adjacent in the front and rear. In addition, when referring to directions in Figures 2 to 5, please refer to the direction of the arrows shown in each figure.

Next, the configuration of the tunnel members 10a to 10l will be described. Since the tunnel members 10a to 10l all have the same shape, the configuration will be described using the tunnel member 10a as an example that represents the tunnel members 10a to 10l. Note that when it is not necessary to distinguish between the tunnel members 10a to 10l, they may be referred to as "tunnel member 10" without the alphabetical letters.

As shown in FIG. 4, the tunnel member 10 has two arch-shaped frames 11, 12. The two frames 11, 12 form the front and rear ends of the tunnel member 10, and so hereinafter, frame 11 will be referred to as the "front end frame 11" and frame 12 as the "rear end frame 12." When the front end frame 11 and the rear end frame 12 are stacked in the front-to-rear direction, the front end frame 11 is formed large enough to include the rear end frame 12 within it. This is so that adjacent tunnel members 10 in the front and rear can be stored by shrinking them by inserting the front tunnel member 10 into the rear tunnel member 10, as described above.

Between the front end frame 11 and the rear end frame 12, a plurality of frames 13 are suspended to fix the front end frame 11 and the rear end frame 12 in a spaced apart state. A frame 13a is also provided to reinforce the frame 13. The frames 13, 13a also serve as mounting members for mounting a cover 15 that covers the tunnel member 10. In this embodiment, a polycarbonate plate material is used as the cover 15, but this is not limited thereto. In this embodiment, the cover 15 covers the entire tunnel member 10, but this is not limited thereto, and it may cover only a part of the entire tunnel member 10, for example, the ceiling portion. In FIG. 4, only the left side of the tunnel member 10 is shown, but the frames 13, 13a are also provided on the right side and are covered by the cover 15.

As shown in FIG. 5, wheels 14 are provided at the bottom of each leg of the front end frame 11 and the rear end frame 12. Therefore, each tunnel member 10 can move freely on the installation surface by means of the four wheels 14.

In addition, ring-shaped mounting parts 11a, 11b for mounting the rope 16 are provided at predetermined positions on the left and right of the front end frame 11 of the tunnel members 10a to 10l (for example, near the center of the vertical pillars on both the left and right sides). The rope 16 is attached to the mounting parts 11a, 11b provided at two positions on the left and right sides of each of the tunnel members 10 adjacent to each other in the front and rear directions. For example, the tunnel member 10b and the tunnel member 10a adjacent to its rear side are connected by attaching the front ends of the left and right ropes 16 to the respective mounting parts 11b of the front end frame 11 of the tunnel member 10b and attaching the rear ends of the left and right ropes 16 to the respective mounting parts 11a of the front end frame 11 of the tunnel member 10a. In this way, the two ropes 16 (see FIG. 3) attached to the left and right sides of the tunnel members 10 adjacent to each other in the front and rear directions connect the tunnel members 10 adjacent to each other in the front and rear directions with a degree of freedom. The rope 16 is made of a non-elastic material (wire rope is used in this embodiment, but is not limited to this), so the movement of adjacent tunnel members 10 in the front and rear is restricted by the rope length of the rope 16 and does not move any further apart. Even when adjacent tunnel members 10 in the front and rear are separated to the maximum extent possible, it is preferable that no gap is generated between the rear end frame 12 of the front tunnel member 10 and the front end frame 11 of the rear tunnel member 10, so that the rope length of the rope 16 is preferably a predetermined length shorter than the distance between the front end frame 11 and the rear end frame 12 of one tunnel member 10.

In addition, mounting parts 12a for mounting one end of each of the two metal chains 19 are provided at two predetermined positions (for example, near the lower ends of the vertical columns on both sides) on the left and right of each rear end frame 12 of the tunnel members 10a to 10l, and one end of each of the two metal chains 19 is fixedly attached to each mounting part 12a. Two rails 13b are suspended between two predetermined positions (for example, near the lower ends of the vertical columns on both sides) on the left and right of each front end frame 11 of the tunnel members 10a to 10l and two predetermined positions (for example, near the lower ends of the vertical columns on both sides) on the left and right of each rear end frame 12, and the other ends of each of the two metal chains 19 are tethered to each rail 13b. Since the other ends of each of the two metal chains 19 move smoothly on the rails 13b, even if each of the tunnel members 10a to 10l moves in the forward and backward directions, the movement in the forward and backward directions is not restricted. Therefore, the two metal chains 19 on the left and right serve to restrict the distance between the adjacent tunnel members 10a to 10l in the left and right direction from exceeding the chain length.

Each balancer 18 is attached to a predetermined position on the left and right of the front end frame 11 of the tunnel member 10a (for example, a position downward from the center of the vertical pillars on both sides) via each mounting plate 17. The wire rope 18a of each balancer 18 is connected to a predetermined position on the left and right of the adjacent tunnel member 10b in front (for example, a position downward from the center of the vertical pillars on both sides). The wire rope 18a of each balancer 18 is pulled out to the maximum rope length of each rope 16. Even if the balancer 18 can pull out the wire rope 18a beyond the rope length of the rope 16, the movement of the adjacent tunnel member 10b in front is restricted by the rope length of the rope 16, so the wire rope 18a is not pulled out any further from the balancer 18. However, the wire rope 18a may be pulled out from the balancer 18 by a length shorter than the rope length of the rope 16. This is because the tunnel members 10a to 10l may not be fully extended, as will be described later with reference to FIG. 3.

When the wire rope 18a is pulled out and stops at a position within the range regulated by the rope 16 connecting the tunnel member 10b to the adjacent tunnel member 10a behind it, the balancer 18 controls the balancer 18 to maintain the stopped state. In other words, even if a force is applied to the tunnel member 10b in a direction that causes the tunnel member 10b to approach the adjacent tunnel member 10c in front after the movement of the adjacent tunnel member 10b in front stops, a force in the opposite direction to the force is applied to the tunnel member 10b, so the stopped state of the tunnel member 10b is maintained. Note that the force applied by the balancer 18 to the tunnel member 10b, that is, the force that pulls the tunnel member 10b, is about 60 kg in this embodiment, but this force does not cause the entire tunnel members 10b to 10l to move backwards. This is because the towing vehicle 40 plays the role of an anchor.

The operation of the boarding arcade 1 configured as above when it moves from the stored state in FIG. 2 to the extended state in FIG. 3 will be explained, but before that explanation, the configuration associated with the boarding arcade 1 will be explained. As described above, the boarding arcade 1 is provided with an entrance member 20, an exit member 30, and a towing vehicle 40.

The entrance member 20 serves as an entrance for guiding passengers to the boarding arcade 1, and is useful when passengers are in a location where they cannot enter the boarding arcade 1 directly. In this embodiment, the boarding arcade 1 is pulled out in a straight line and installed as shown in FIG. 3. Therefore, when passengers cannot enter the boarding arcade 1 as it is pulled out in a straight line, they can enter the boarding arcade 1 through the entrance member 20. As shown in FIG. 2, the entrance member 20 is provided with a number of anchors 21 to restrict its movement after installation. Anchors 21 are also provided on the tunnel member 10a of the boarding arcade 1. Therefore, the movement of the tunnel member 10a of the boarding arcade 1 is restricted even when it is stored.

The exit member 30 serves as an exit that guides passengers from the boarding arcade 1 to the passenger step A1 (see FIG. 1) of the aircraft A. Since it is difficult to bring the tunnel member 10l of the boarding arcade 1, which is pulled out in a straight line, directly close to the passenger step A1, the exit member 30 is connected to the tunnel member 10l in order to fill the gap between the boarding arcade 1 and the passenger step A1.

The towing vehicle 40 is powered by, for example, an electric motor (not shown) and is connected to the exit member 30 to pull out the tunnel members 10a-10l in a straight line through the exit member 30. When the power supply to the electric motor of the towing vehicle 40 is turned off and a force is applied in a direction to move the towing vehicle 40 from its stopped position, the electric motor tries to generate electricity and generates a force in the opposite direction to the force. As a result, the towing vehicle 40 tries to maintain its stopped state, so that after the towing vehicle 40 stops and the power supply to the electric motor is turned off, it serves as an anchor for the boarding arcade 1.

Figure 2 shows the state of the boarding arcade 1 and the associated components 20, 30, 40 when stored. In this state, the operator turns on the power of the electric motor of the towing vehicle 40 and moves the towing vehicle 40 closer to the passenger step A1 of the aircraft A. Then, the operator moves the towing vehicle 40 to the destination position and turns off the power of the electric motor of the towing vehicle 40. Figure 3 shows this state. At this time, among the tunnel members 10a to 10l, the rope 16 connecting the adjacent tunnel members 10 in the front and rear is in a state in which the rope length is stretched linearly to the maximum in the tunnel members 10b to 10l except for the tunnel member 10a. On the other hand, the rope 16 connecting the tunnel member 10a and the adjacent tunnel member 10b in front of it may be in a state in which the rope length is stretched linearly to the maximum, or in a state shorter than that, that is, in a slack state. This is because the stopping position of the aircraft is not always constant, and other factors may also be involved, and the boarding arcade 1 may not be usable in a state in which it is fully extended.

Conventional boarding arcades are preferably used in a fully extended state. When used in a fully extended state, a tension equal to or greater than a predetermined tension is applied to the ropes 16 between each of the tunnel members 10a to 10l, which restricts the movement of each of the tunnel members 10a to 10l, making it possible to maintain the state of the passage as much as possible even when a lateral force is applied. In contrast, when conventional boarding arcades cannot be used in a fully extended state, a tension equal to or greater than a predetermined tension is not applied to the ropes 16 between each of the tunnel members 10a to 10l, which makes it difficult to maintain the state of the passage when a lateral force is applied.

To deal with this, in the present application, a balancer 18 is provided in a conventional boarding arcade, so that even when the boarding arcade 1 cannot be used in a fully extended state, a tension equal to or greater than a predetermined tension is applied to the ropes 16 between each of the tunnel members 10b-10l, and a tension equal to or greater than a predetermined tension is applied to the wire rope 18a between the tunnel members 10a and 10b, in the same manner as when the conventional boarding arcade is used in a fully extended state. In other words, the balancer 18 pulls the tunnel member 10b adjacent to the front of the tunnel member 10a on which the balancer 18 is provided with a predetermined force (in this embodiment, a force of about 60 kg as described above) via the wire rope 18a, thereby controlling so that a tension equal to or greater than a predetermined tension is applied to all of the ropes 16 connected between the tunnel member 10a on which the balancer 18 is provided, each of the tunnel members other than the tunnel member 10b adjacent to the front of it, and the tunnel member adjacent to the front of it. This restricts the movement of each tunnel member 10a to 10l, so that the state of the passage can be maintained as much as possible even if a lateral force is applied.

As described above, after the power supply to the electric motor is turned off, the movement of the towing vehicle 40 is restricted by the electric motor. However, during the short time when the power supply is changed from the on state to the off state, the movement of the towing vehicle 40 is not restricted. Due to the tension generated in the wire rope 18a during this short time, the balancer 18 moves the front tunnel member 10 in the direction of the rear tunnel member 10a.
b. As a result, the tunnel member 10b attracts the tunnel member 10c in front of it via the rope 16, the tunnel member 10c attracts the tunnel member 10d in front of it via the rope 16, and so on. Finally, the tunnel member 10k attracts the tunnel member 10l in front of it via the rope 16, so that each of the tunnel members 10b to 10l moves slightly backward. As a result, the orientations of the wheels 14 provided on each of the tunnel members 10b to 10l except for the tunnel member 10a are all aligned. Therefore, when the extended boarding arcade 1 is stored, the orientations of the wheels 14 provided on each of the tunnel members 10b to 10l are already aligned, so that the storage efficiency of the boarding arcade 1 can be improved.

Next, the operation of the boarding arcade 1 when it moves from the extended state of FIG. 3 to the stored state of FIG. 2 will be described. In the state of FIG. 3, when the operator turns on the power of the electric motor of the towing vehicle 40 and starts moving the towing vehicle 40 backward, the leading tunnel member 10l starts moving backward. In response to this, the tension applied to the rope 16 connecting the leading tunnel member 10l to the adjacent tunnel member 10k behind it decreases, so that the force of the balancer 18 to pull the tunnel member 10b through the wire rope 18a exceeds the tension applied to the rope 16 connecting the tunnel member 10b to the tunnel member 10c adjacent to it in front of it. As a result, as the leading tunnel member 10l moves backward, the tunnel member 10b adjacent to it in front of it is first pulled into the tunnel member 10a on which the balancer 18 is provided. Next, the leading tunnel member 10l is stored in the adjacent tunnel member 10k behind it by the towing vehicle 40, and the tunnel member 10k with the leading tunnel member 10l stored in it is stored in the adjacent tunnel member 10j behind it, and finally, the tunnel member 10c with tunnel members 10l to 10d stored in it is stored in the tunnel member 10a with tunnel member 10b stored in it, resulting in the state shown in FIG. 2.

As described above, the boarding arcade 1 of this embodiment is equipped with a plurality of tunnel members 10a to 10l each having two arch-shaped frames 11, 12 provided at both ends of each tunnel member 10a to 10l, the front end frame 11 being formed large enough to include the rear end frame 12 when the front end frame 11 is stacked on the rear end frame 12 in the fore-and-aft direction, a cover that covers at least the ceiling portion of the front end frame 11 and the rear end frame 12, and wheels 14 provided on both legs of each of the two frames 11, 12, and a balancer 18 provided on at least one tunnel member 10a of the plurality of tunnel members 10a to 10l.

Each of the multiple tunnel members 10a to 10l is connected to the adjacent tunnel member in front of it by a rope 16 of a predetermined length, and the tunnel member 10a equipped with the balancer 18 is further connected to the tunnel member 10b adjacent to it in front of it by the wire rope 18a of the balancer 18.

Furthermore, when each of the multiple tunnel members 10a to 10l is stored, the tunnel member adjacent to it in front of it is moved backward, and the tunnel member adjacent to it in front of it is stored by entering inside the tunnel member behind it, and when each of the stored multiple tunnel members 10a to 10l is extended, each of the multiple tunnel members 10a to 10l, except for the tunnel member 10a with the balancer 18 and the tunnel member 10b adjacent to it in front of it, moves to a position restricted by the rope 16 of a predetermined length, and the tunnel member 10a with the balancer 18 and the tunnel member 10b adjacent to it in front of it moves to a position within the position restricted by the rope 16 of a predetermined length and to a position where the wire rope 18a of the balancer 18 is extended.

The balancer 18 pulls the tunnel member 10b adjacent to the front of the tunnel member 10a on which the balancer 18 is provided with a predetermined force via the wire rope 18a, thereby controlling so that a tension of a predetermined tension or more is applied to all of the ropes 16 connected between the tunnel member 10a on which the balancer 18 is provided and each of the tunnel members other than the tunnel member 10b adjacent to the front of it and the tunnel member adjacent to the front of it.

In this way, in the boarding arcade 1 of this embodiment, when each of the stored tunnel members 10a to 10l is extended, the balancer 18 pulls the tunnel member 10b adjacent to the front of the tunnel member 10a on which the balancer 18 is provided with a predetermined force via the wire rope 18a, thereby controlling all of the ropes 16 connected between the tunnel member 10a on which the balancer 18 is provided and each of the tunnel members other than the tunnel member 10b adjacent to the front of it and the tunnel member adjacent to the front of it to be tensioned with a predetermined tension or more. Therefore, even if each of the tunnel members 10a to 10l is stretched out like a passage and receives a lateral force, it is possible to maintain the state of the passage as much as possible.

The balancer 18 is also provided on the tunnel member 10a, which is located furthest to the rear among the multiple tunnel members 10a to 10l.

This makes it possible to properly adjust the overall length of the boarding arcade 1.

In addition, the tunnel member 10l located most forward among the multiple tunnel members 10a to 10l is towed by the towing vehicle 40 via the exit member 30, and the position of the tunnel member 10l located most forward among the multiple tunnel members 10a to 10l towed and pulled out by the towing vehicle 40 is maintained by the towing vehicle 40 acting as an anchor.

As a result, the towing vehicle 40 can act as an anchor simply by stopping at the towing position, eliminating the need to connect the boarding arcade 1 to the anchor after it has been extended.

When a force is applied to the pulled-out tunnel members 10a-10l in a direction that shortens their overall length, the towing vehicle 40 applies a force in a direction that maintains their overall length, and when a force is applied to the pulled-out tunnel members 10a-10l in a direction that extends their overall length, the balancer 18 applies a force in a direction that maintains their overall length.

This makes it possible to maintain the passage state as much as possible even when each tunnel member 10a to 10l is stretched into a passage and receives a lateral force.

The present invention is not limited to the above embodiment, and various modifications are possible without departing from the spirit of the invention.

(1) In the above embodiment, the balancer 18 is provided only on one tunnel member 10a of the boarding arcade 1, but this is not limited, and it may be provided on two or more tunnel members. If the balancer 18 is provided on all of the tunnel members 10a to 10l, even if each tunnel member 10a to 10l is stopped at any position within the rope length of each rope 16, the wire rope 18a of each balancer 18 pulls each tunnel member 10a to 10l with a tension equal to or greater than a predetermined tension, so that even if a lateral force is applied in this passage state, it is possible to maintain the state of the passage as much as possible. Also, even if the balancer 18 is provided only on one tunnel member, it is not limited to the tunnel member 10a as in the above embodiment, but may be any of the other tunnel members 10b to 10k.

(2) In the above embodiment, the boarding arcade 1 is extended using a towing vehicle 40, but this is not limited to the above and may be done manually.

(3) In the above embodiment, a rope 16 is used as the member connecting each of the tunnel members 10a to 10l, but this is not limited to this and other members such as a chain may also be used.

1...boarding arcade, 10a-10l...tunnel members, 11-13, 13a...frame, 13b...rail, 14...wheel, 15...cover, 16...rope, 17...mounting plate, 18...balancer, 18a...wire rope, 19...metal chain, 20...entrance member, 30...exit member, 40...tow vehicle.

Claims (3)

two arch-shaped frames provided at both ends of each tunnel member, the front end frame being large enough to include the rear end frame when the rear end frame is stacked on the front end frame in the front-rear direction;
a cover that covers at least a ceiling portion of the front end frame and the rear end frame;
Wheels provided on both legs of each of the two frames;
A plurality of tunnel members having
a balancer provided in at least one of the plurality of tunnel members;
Equipped with
Among the plurality of tunnel members, the tunnel member located most rearward is anchored,
Each of the plurality of tunnel members is connected to an adjacent tunnel member in front of it by a rope of a predetermined length,
The tunnel member provided with the balancer and the adjacent tunnel member in front of it are further connected by a wire rope of the balancer,
When storing each of the plurality of tunnel members, the tunnel member adjacent to the front of the tunnel member is moved backward, and the tunnel member adjacent to the front of the tunnel member is stored by entering inside the tunnel member behind the tunnel member,
When each of the plurality of stored tunnel members is extended,
Among the plurality of tunnel members, each of the tunnel members other than the tunnel member on which the balancer is provided and the tunnel member adjacent thereto in front of it is moved to a position regulated by the rope of the predetermined length,
The tunnel member on which the balancer is provided and the adjacent tunnel member in front of it are moved to a position within the range regulated by the rope of the predetermined length and to a position where the wire rope of the balancer is extended,
The balancer controls the tension of the ropes connected between the tunnel member on which the balancer is provided and each of the tunnel members other than the tunnel member on which the balancer is provided and the tunnel member on which the balancer is provided and the tunnel member on which the balancer is provided and the tunnel member on which the balancer is provided and the tunnel member on which the balancer is provided and the tunnel member on which the balancer is provided and the tunnel member on which the balancer is provided and the tunnel member on which the balancer is provided are connected to each of the tunnel members,
Among the plurality of tunnel members, the tunnel member located most forward is towed by a towing vehicle through an exit member,
Among the plurality of tunnel members pulled out by the towing vehicle, the tunnel member located at the frontmost position is maintained in its position by the towing vehicle serving as an anchor.
Boarding arcade. The balancer is provided in the rearmost tunnel member among the plurality of tunnel members.
2. The boarding arcade of claim 1. When a force is applied to the pulled out plurality of tunnel members in a direction to shorten their overall length, the towing vehicle applies a force to the pulled out plurality of tunnel members in a direction to maintain their overall length,
the balancer applies a force in a direction to maintain the overall length of the pulled-out tunnel members when a force in a direction to extend the overall length of the pulled-out tunnel members is applied to the pulled-out tunnel members.
3. A boarding arcade as claimed in claim 1 or 2 .

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