JPH059280Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a closure for a boarding bridge connected to a vehicle entrance/exit.

(Prior art) As a boarding bridge that connects an aircraft stopped at an appropriate location at an airport and an airport building, a boarding bridge is installed between a base passage body whose base end is connected to the airport building and a cab for connecting the aircraft at its tip. A structure in which an intermediate passage body is provided, and this intermediate passage body, the base passage body, and the cab for connecting the fuselage are horizontally rotatably connected through circular chambers on both the base end side and the distal side, respectively. It is generally known (for example, see Japanese Patent Publication No. 61-5952).

The fuselage connecting cab of such a boarding bridge is provided with a closure around the periphery of the connecting port to the fuselage, which abuts against the fuselage and seals between the fuselage connecting cab and the fuselage. The closure is formed into a bellows shape using a nylon tarpaulin (waterproof canvas).With the floor of the cabin connecting the aircraft in contact with the aircraft, the closure is folded forward using the expansion and contraction of the bellows, and the aircraft is The contact opening portion of the closure is brought into contact with the upper edge and both side edges of the entrance/exit door.

Furthermore, Japanese Utility Model Application Publication No. 62-56400 discloses that a plate made of a spring plate and a rubber plate is installed between a cushioning material attached to the front surface of a flexible frame member and an exterior sheet covering the cushioning material. It is described that the relevant plate is not joined to the cushioning material but is joined to the exterior sheet material so that the exterior sheet material curves along the curvature of the aircraft body.

In other words, if the front surface of the cushioning material is simply covered with an exterior sheet material, the front surface of the cushioning material will curve with a smaller radius of curvature than the contact surface of the aircraft body when it comes into contact with the aircraft. This is to solve the problem that the outer sheet material is in a contracted state, and as a result, for example, both ends of the exterior sheet material in the left and right direction come into contact with the aircraft body but the center part does not, or the exterior sheet material wrinkles and creates a gap. It is. That is, the purpose is to prevent the exterior sheet material from loosening due to the curvature of the front surface of the cushioning material, by means of the backing plate.

(Problem to be solved by the invention) However, the above-mentioned backing plate that prevents the exterior sheet material from loosening is effective when it is new, but as the number of times it is used increases, the Since the material itself is flexible and stretchable, it stretches due to the influence of rainwater and contact with the aircraft body, and as a result, the exterior sheet material tends to be wrinkled all the time. As a result, the adhesion between the exterior sheet material and the fuselage is reduced, and rain and wind may infiltrate into the fuselage or the fuselage connection cab through the gaps created by the wrinkles.

That is, an object of the present invention is to improve the sealing performance of the closure with a simple structure.

(Means for Solving the Problems) In order to solve these problems, the present invention provides a seal that is more difficult to bend than the waterproof sheet such as the tarpaulin that constitutes the contact surface of the closure to the fuselage. By providing the member, the sealing performance of the closure is improved.

That is, this means is provided in a boarding bridge in which a closure that is extendable and retractable in the front and back direction is provided on the periphery of the connection port to the vehicle, and the contact port of the closure to the vehicle is constructed of a waterproof sheet. At least the upper edge portion of the abutting portion is provided with a sealing member having a protruding strip that projects forward, extends along the edge of the abutting port, and comes into contact with the vehicle, and this sealing member has a bending strength as described above. This is a boarding bridge closure characterized by being set higher than the tarpaulin.

(Function) In the closure described above, a seal is created between the boarding bridge and the fuselage by the sealing member coming into contact with the fuselage. Since the sealing member has higher bending strength than the sealing member, it is difficult to wrinkle itself, and the sealing member functions as a reinforcing rib to prevent the abutment opening from wrinkling.

(Effects of the invention) Therefore, according to the invention, since a protruding seal member having higher bending strength than the waterproof sheet constituting the abutment opening of the closure is provided, this sealing member can be extended over its entire length. The contact surface can be brought into reliable contact with the vehicle over a period of time, thereby improving the sealing performance between the vehicle and the boarding bridge, and preventing the contact surface from wrinkling to improve its durability. You will be able to aim for

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

FIG. 1 shows the overall structure of a boarding bridge 1. As shown in FIG. That is, this boarding bridge 1 is provided with a base passage body 2, an intermediate passage body 4, and a fuselage connection cab 3 having a connection port 3a to the aircraft fuselage in this order. The base passage body 2 and the intermediate passage body 4 are horizontally rotatably connected by a driving means (not shown) via the base-side circular chamber 5, and the intermediate passage body 4 and the cab 3 for connecting the fuselage are connected at the tip. They are also horizontally rotatably connected via a side circular chamber 6 by a drive means (not shown). A shutter 8 for opening and closing the communication port 7 to the cab 3 for connecting the fuselage is provided in the circular chamber 6 on the distal end side.

The base passage body 2 is connected to an airport building, and is supported on the road by pillars 9. The intermediate passage body 4 is formed by fitting an inner tube 4a and an outer tube 4b so that they can expand and contract. In this case, the inner cylinder 4a is vertically movably connected to the proximal circular chamber 5, and the outer cylinder 4b is supported by vertically extendable running legs 10, and is connected to the distal circular chamber 6. There is. A closure 11 is provided on the periphery of the connection port 3a of the aircraft connection cab 3 to the aircraft body, and is brought into contact with the aircraft body to seal between the aircraft connection cab 3 and the aircraft body. 11 is provided with a seal member 12 in the form of a protrusion protruding forward in order to improve the sealing performance.

That is, the closure 11 is connected to the connection port 3a.
The second
As shown in the figure, it has a bellows shape that can be expanded and contracted in the front and rear directions. Then, with the front end of the floor 13 in contact with the lower edge of the entrance/exit of the aircraft W, the closure 1
The abutting port 11a for the body W of No. 1 is tilted forward so as to come into contact with the upper edge and both side edges of the entrance/exit of the body W.

The closure 11 is comprised of a plurality of spring steel frames whose bellows portions 14 are formed into a gate shape, and a bellows cover 15 made of a nylon tarpaulin placed over the frames. Then, the abutment port 11 to the body W
A is composed of the abutting body 16 provided with the above-mentioned tarpaulin cover, and the above-mentioned sealing member 12 provided on the abutting surface of this abutting body 16.

As shown in FIG. 3, the bellows cover 15 has a diamond-shaped hole 17 formed at a corner of the connecting port 3a of the cab 3 for connecting the aircraft body to allow the cover 15 to be bent into a gate shape. and,
The abutting body 16 is attached to the edge of this bellows cover 15.
The covers 18 are integrally connected. This abutting body cover 18 is also formed with a triangular notch 19 for bending into a gate shape. Note that the diamond-shaped hole 17 and the notch 19 are closed by sewing with a sewing machine in the state of being bent into a gate shape.

As shown in FIG. 4, the abutting body 16 is formed by covering a cushion material 20 made of urethane foam with the abutting body cover 18. Then, the seal member 1 is placed on the surface (contact surface) of this contact body cover 18.
It is provided along the edge of the connection port 3a of the cab 3 for connecting the fuselage, extending from the upper edge of the connection port 3a to the upper portions of both side edges.

That is, this sealing member 12 is made of rubber, and includes a flat base 12a and a semicircular arc-shaped abutting part 12b that is integrally provided at the center of the base 12a in the width direction and abuts against the body W. It has a closed cross-sectional structure, and its bending strength is higher than that of the abutting body cover 18.
Both sides of the base portion 12b are fixed to the abutting body cover 18 by sewing. In this case, as shown in FIG.
are provided at the upper edge of the connecting port 3a, slanting downward from the center toward both side edges.

Therefore, in the closure 11 having the above structure, the boarding bridge 1 is operated and the floor 13 of the cab 3 for connecting the fuselage is attached to the lower edge of the entrance/exit of the fuselage W.
The contact opening portion 11a of the closure 11 is brought forward by utilizing the expansion and contraction of the bellows portion 14, and brought into contact with the upper edge and both side edges of the entrance/exit of the aircraft body W. In this case, the seal member 12 mainly contacts the upper edge of the connecting port 3a and the upper portions of both side edges, and the contact body 16 contacts the lower portions of the both side edges.

Then, the sealing member 12 is attached to the abutting body cover 18.
Since the bending strength is higher than that of the fuselage, it is difficult to wrinkle itself, and it reliably contacts the fuselage W over its entire length, improving the sealing performance between the fuselage W and the fuselage connection cab 3. . Furthermore, this sealing member 12 functions as a reinforcing rib for the abutting body cover 18, preventing the abutting body cover 18 from wrinkling, maintaining its appearance, and improving its durability. .

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a perspective view of the boarding bridge, Fig. 2 is a partially sectional side view showing the closure, and Fig. 3 shows the bellows part and the cover of the abutting body. FIG. 4 is a longitudinal sectional view of the abutting portion of the closure, and FIG. 5 is a partially omitted front view showing the closure. 1... Boarding bridge, 3a... Connection port, 11... Closure, 11a... Contact port,
12... Seal member, 18... Contact body cover (waterproof sheet), W... Body (vehicle).

Claims (1)

[Scope of utility model registration request] In a boarding bridge in which a closure that is expandable and retractable in the front and back direction is provided around the periphery of a connection port to the vehicle, and the contact port portion of the closure to the vehicle is made of a waterproof sheet, at least the upper edge of the contact port portion. The portion is provided with a sealing member having a protrusion that projects forward and extends along the edge of the abutment opening portion so as to come into contact with the vehicle, and the bending strength of this sealing member is set higher than that of the waterproof sheet. A boarding bridge closure characterized by: