JPS6111120Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a highly versatile scaffolding device for maintaining the main wing of an aircraft, which is configured to be applicable to most types of aircraft.

[Conventional technology]

In recent years, the number of inspection and maintenance operations has increased with the increase in demand for aircraft, and as aircraft models have become more diverse and the shape of the aircraft has changed year by year, we have There is a strong demand for a highly versatile maintenance scaffolding device that can be used without any need for maintenance.

By the way, conventional scaffolding devices of this type include a so-called multi-tiered deck structure in which the entire aircraft is covered with a plurality of multi-tiered decks, and a hanging gondola that can partially reach any part of the aircraft. There are two main types of gondola configurations:

[Problem that the invention attempts to solve]

In other words, the scaffolding device with the above-mentioned multi-tiered deck structure,
It is designed to cover the entire aircraft by moving only horizontally and close to both sides of the aircraft, and it is not only unable to be raised or lowered, but also has a multi-stage deck configuration that matches the external shape of the applicable aircraft. It could only be applied to at most two types of aircraft that were very similar in appearance and size, and therefore separate similar scaffolding devices had to be provided for other types of aircraft. Providing a scaffolding system with a complicated multi-tiered deck configuration for each type of aircraft would result in large-scale equipment, resulting in problems with space occupancy and increased costs. Since it is necessary to approach and separate from the sides, there are major disadvantages in terms of maintenance, such as a lot of time loss and poor workability.

On the other hand, while the gondola-structured scaffolding device can be adapted to any type of aircraft and has a small turning radius, it must be moved frequently, so there is a time loss until inspection and maintenance of the aircraft is completed. There are problems with the model, such as the fact that the number is much larger than that of the conventional model, resulting in a significant decrease in work efficiency.

This idea was made to eliminate the above-mentioned problems all at once, and its purpose was to create a scaffolding structure specifically for the main wing area, separate from those around the fuselage and tail of the aircraft, so that it could be used to secure the front part of any type of aircraft. All inspection points around the main wing, including the engine area, can be easily and quickly approached.
We have developed a highly versatile scaffolding device for aircraft main wing maintenance that can minimize time loss during maintenance, improve work efficiency, and significantly reduce equipment costs. It is on offer.

[Means for solving problems]

In order to achieve the above objectives, the present invention introduces a group of work floors that are divided into a number of parts and placed under both main wings of the aircraft, each of which can be raised and lowered independently, and which can be moved, and an engine for each type of aircraft. A plurality of cut-out windows provided on the leading edge side of the stationary work floor group, a plurality of sliding floors arranged in parallel to open and close these cut-out windows, and a sliding floor that can be raised and lowered and that runs on the floor surface and that are arranged on both sides and below the aircraft engine. The present invention is equipped with a plurality of movable working floors and a plurality of parallel sliding floors provided on these movable working floors so as to be horizontally retractable from the edge of each floor.

〔Example〕

A preferred embodiment of this invention will be described below with reference to the drawings. First, the main wing maintenance scaffolding device shown in Fig. 1 consists of work floor groups F, F' and movable work floors E ₁ -
It consists of a combination of E ₄ and M ₁ to _{M 6} ,
Their related configurations are as follows.

In other words, the work floor groups F and F' consist of unit work floors 1 to 14 divided into many units, and as a whole, the work floor groups F and F' are divided into many unit work floors 1 to 14, and as a whole, the work floor groups F and F' are divided into many unit work floors 1 to 14.
It is designed to accommodate the main wing dimensions of .

These unit working floors 1 to 14 are the rear row unit working floors 1 to 9 arranged on the floor below the main wing along the main wing W of the large aircraft P, and the lower main wing floor in the front part. It is divided into a front row of unit work floors 10 to 14 arranged on the surface, and each unit work floor is arranged next to each other, and all the unit work floors 1 to 14 are individually movable in the form of a traveling trolley. Yes, and it is designed to be able to go up and down independently.

In such work floor groups F and F', the front edge of the unit work floor 6 on the rear side straddles between the unit work floors 13 and 14 on the front row side, and the outer engine E of the large machine P is A cutout window 15 is formed to match the shape of the engine so that it can be introduced from the side, and between the unit work floors 11 and 12 on the front row side, on the leading edge side, the main wing engine of an Airbus or other small or medium-sized aircraft can be inserted. A cutout window 16 is formed to introduce the rear part of the housing. Further, on one side of the front part of one of the unit work floors 11 forming this notch window 16, there is a notch that allows the rear part of the inner engine E' of the large machine P to approach near the front part of the notch 16. 17 are provided.

The unit work floors 6, 13, 14 and 11, 12 having respective notches 15, 16 have a plurality of parallel slides whose inner edges on both sides appear and retract in order to open and close the respective notches 15, 16. floor 1
8 ₁ to 18 _o and 19 ₁ and 19 ₂ are attached, respectively. Similarly, a plurality of sliding floors 20 ₁ and 20 ₂ are attached to the cutout portion 17 of the unit work floor 11 as well, which extend and retract in the horizontal direction toward the cutout window 16 side.

All these sliding floors 18 ₁ to 18 _o , 19
₁ , 19 ₂ , 20 ₁ , and 20 ₂ are adapted to slide individually.

Further, in the case of the illustrated example, the unit work floor groups F and F' have jack up holes 21 for large machines and jack up holes 11 for small and medium machines, which are bored in the transfer work floors 7 and 12. , opening/closing floors 23 and 24 are attached to these jack up holes 21 and 22.

In this case, the opening/closing floors 23, 24 may be opened and closed by sliding or by flipping upwards.

The above is a work floor group F consisting of a combination of a plurality of unit work floors 1 to 14 each of which can be independently raised and lowered.
When these are installed and fixed, the distance between the two work platform groups F, F' is set to a dimension that allows the fuselage of a large machine P to pass through with ease.

On the other hand, the movable working floors E ₁ to F ₄ and M ₁ to _{M 6} are movable working floors for the lower part of the engine located directly below the front engine of the aircraft P, as shown in an enlarged view in FIG.
They can be used as E ₁ to _{E 4} and engine side movable work floors M ₁ to _{M 6} placed on both sides of the front engine.

Each of the moving work floors E ₁ to _{E 4} and M ₁ to _{M 6} has a plurality of parallel sliding floors that appear horizontally from both sides of each floor, except for the innermost working floors M ₃ and M ₄ . 25 ₁ to 25 _o and 26 ₁
~26 _° , each of which can be driven up and down, and has a trolley configuration that can move forward, backward, left and right on the floor.

Such mobile work floors E ₁ to E ₄ and M ₁ to _{M 6} are always provided in numbers corresponding to the number of engines on both wings of the aircraft, and the mobile work floors E ₁ to _{E 4} for the lower part of the engines are connected to the floor surface. In order to be able to easily place and move it at any time under the aircraft engine, where the space between the two is close, it is lowered to a much lower position than the engine side movable work platform _M1 to _M6 . It is configured so that it can be done.

Next, the operation of the above embodiment will be explained. First of all,
Before the aircraft P arrives after completing its flight, each unit work floor 1 to 14 of the work floor groups F to F'
As shown in Figure 2, all of the mobile work platforms E ₁ to _{E 4} and
M ₁ to _{M 6} will be kept in standby positions where they will not interfere with aircraft intrusion. Further, in this case, when the incoming aircraft is a large aircraft P such as a jumbo aircraft, the sliding floors 18 ₁ to 18 _o and 20 ₁ of the engine introduction notch window 15 and the notch 17 are
20 ₂ are retracted, and the cutout windows 16 for introducing small and medium-sized aircraft engines are closed with dedicated sliding floors 19 ₁ and 19 ₂ , respectively, and each mobile work floor E ₁
~ _E4 and _M1 ~ _M6 slide beds 251 _{~ 25o} and ₂₆₁ ~ _26o are also retracted.

While the large aircraft P is moving backward in such a standby state, its fuselage enters between the work floor groups F and F', causing both main wings W to be positioned apart from each other above the floor surfaces, and the aircraft stops. Then, the large machine P is jacked up to the required height using the large machine jack up holes 21 of the work floor groups F and F'.

In parallel with the jack-up or after the jack-up, each of the unit work floors 1 to 14 of the work floor groups F and F' is individually raised. In this case, each unit work floor 1 to 14 is raised to a position where each floor surface approaches the lower surface of the main wing at approximately equal intervals according to the height to the lower surface of the aircraft main wing W located directly above them. (See Figure 3). Furthermore, when the flap PF of the main wing W of the aircraft is in a lowered state as shown in Figure 5, the unit working floors 7 to 9 in the rear row located below it are stopped at a lower position corresponding to the lowered flap PF. to rise to.

By raising each unit work floor 1 to 14 individually in this way, the outer engine E of the aircraft P enters the respective cutout window 15, and the inner engine
A portion of the rear side of E' approaches the notch 17 of the unit work floor 11.

In such a state, gaps are created between the outer engine E and the inner edge of the cutout window 15, and between the inner engine E' and the cutout window 17, so in order to eliminate these gaps, the cutout is removed. window 15
and each slide floor 18 ₁ to 18 _o and 2 of the notch 17
The required amount of each of 0 ₁ and 20 ₂ is withdrawn.

At the same time, movable work floors M ₁ to _{M 6} are moved below both sides of each engine E and E' of the aircraft P, and movable work floors E ₁ to E ₄ for the same are moved directly below the engines E and E', respectively. and place it.

Then, by driving the movable working floors M ₁ to _{M 6} and E ₁ to _{E 4} upward, the floor surfaces of the movable working floors M ₁ to _{M 6} for engine sides are moved near both sides of the engines E and E'. In addition, the floor surfaces of movable working floors E ₁ to _{E 4} for the lower part of the engine are brought close to directly below the engines E and E', respectively.

Therefore, moving work floors for the engine side M ₁ , M ₂ ,
The sliding floors 26 ₁ to 26 _o of M ₅ and M ₆ are pulled out and operated toward the engines E and E' as shown in FIGS. 1 and 4, and the working floors M ₁ to _{M 6} and the engines E and E' The sliding floors 25 ₁ to 25 _o are pulled out in order to eliminate the gap between them and to expand the floor surfaces of the moving working floors E ₁ to _{E 4} for the lower part of the engine. In this way, the scaffolding device with the above-mentioned configuration immediately approaches the vicinity of the lower parts of both main wings W of the large aircraft P and all around the engine, so that workers can quickly and thoroughly inspect all of these inspection points. It can be safely inspected and maintained.

In the above embodiment, each of the unit working floors 1 to 14 of the working floor groups F and F' was raised from the lowest position to approach the lower part of the main wing W of the large aircraft P. 14 may be raised in advance to a position where they should approach the lower part of the main wing W before the aircraft P approaches between them. In this case, as the body of the large aircraft P enters between the work floor groups F and F' from the tail side, its outer engine E is inevitably introduced into the cutout window 16, so the large aircraft P The time required for each unit work floor 1 to 14 to rise and approach after the approach can be saved.

The above-described scaffolding device, which is used to approach large aircraft P, can also be applied to small and medium-sized aircraft. Since the approach procedure in this case is almost the same as in the case of the large aircraft P, only the differences from the case of the large aircraft P will be described.

That is, since the position of the engine and the height of the main wing are different compared to the small and medium-sized aircraft P, the floor surface of each unit work floor 1 to 14 is placed at the lower approach position depending on the height of the main wing of the small and medium-sized aircraft. Adjust the height of these working floors so that the engine can be opened, and slide the sliding floors 19 ₁ , 19 to open the cutout windows 16 for introducing small and medium-sized aircraft engines.
₂ is retracted to open the cutout window 15 for introducing a large aircraft engine.
If the sliding floor ₁₈₁ to _18o of the window is closed to prevent workers from falling, from then on, use the same procedure as for the large machine P described above to install the scaffolding device on the small or small machine.
Can be approached by medium-sized aircraft. However, if the main wing engine e of a small or medium-sized aircraft is one on one wing, the number of movable work floors E ₁ to E ₄ and M ₁ to _{M 6} used around the engine is the same as that of a large aircraft P. decreases compared to In this case, the movable work floor that is not in use may be kept in a place where it will not get in the way.

In addition, in the above embodiment, work floor group F,
Each unit work floor 1 to 14 of F′ and mobile work floor E ₁ to _{E 4}
Each of the lifting drive means M ₁ to M ₆ may be an automatic means powered by power. All sliding floors 18 ₁
Although it is preferable that slides 18 _o , 19 ₁ , 19 ₂ , 20 ₁ , 20 ₂ and 25 ₁ -25 _o and 26 ₁ -26 _o be operated by automatic means, the operations may be performed manually. Furthermore, it is preferable that each of the movable working floors E ₁ to _{E 4} and M ₁ to _{M 6} be self-propelled by power.

In addition, symbols 27 and 28 in the figure indicate work floor group F,
F′ and movable work floors M ₁ to _{M 6} for the side of the engine are equipped with ramps for raising and lowering workers, 2
Reference numerals 9 and 30 designate handrails that can be raised and lowered, which are attached to the floor periphery of each of the unit work floors 1 to 14 and each of the movable work floors E ₁ to _{E 4} and M ₁ to _{M 6} .

In addition to the above, in the example, the upper surfaces of all the working floors are inclined to approximate the slope of the main wings of the aircraft, but the upper surfaces of all the floors are made horizontally and when used for work, the upper surfaces of the working floors are inclined to match the inclination of the main wings. It may be approximated and used as a two-stage shape.

[Effect of idea]

In summary, this invention provides the following remarkable effects.

(1) Each unit of the work floor in a group of work floors that is divided into many parts and placed under the main wing of an aircraft can move and be raised and lowered individually, and a designated place on the leading edge side of the group of work floors is provided for each type of aircraft. Since there is a cutout window through which the engine can be introduced, each of the unit working floors can be approached under the main wing of any aircraft at approximately equal intervals, and a group of working floors can be arranged. They can be moved individually freely and easily, and can be moved to another location, hangar, etc., and can be used not only as a whole, but also as a single unit in spots.

(2) In addition to the group of working floors, a plurality of movable working floors are provided on both sides and below the aircraft engine, each of which can be raised, lowered and moved freely, and each of these movable working floors and the cutout window are horizontal. By having a sliding floor that can freely move in and out of the direction, gaps created between the cutout window into which the aircraft engine is introduced and the engine, and between another engine and the movable work floor placed on both sides thereof can be reduced. This type of inspection is possible because the sliding floor can be used to reliably eliminate the problem, and unused cutout windows can be closed using the sliding floor.
The safety of workers during maintenance can be improved, and since the floor area of each work floor is also increased, work efficiency is also improved.

(3) Furthermore, when an aircraft enters or exits, it is only necessary to move the movable work platform, which can turn easily, to a place where it does not get in the way, so time loss can be kept to a minimum.

(4) Therefore, according to the scaffolding device of this invention, it is possible to easily and quickly approach all the inspection points around the main wings, including the front engine, of any type of aircraft at any time. This greatly contributes to simplification and reduction of equipment costs.

[Brief explanation of the drawing]

The drawing shows a preferred embodiment of this invention.
Figure 1 is a plan view of the entire scaffolding system, Figures 2 and 3 are front views of the arrangement of the work floor group on one wing side of the aircraft, Figure 4 is an enlarged front view of the arrangement of the movable work floor group on one wing side, and Figure 5 The figure partially explains the function of the work floor. In the figure, F and F' are work floor groups, _E1 to _E4 are movable work floors for the lower part of the engine, _M1 to _M6 are movable work floors for the side of the engine, 15 and 16 are cutout windows for introducing the engine,
18 ₁ ~ 18 _o , 19 ₁ ~ 19 ₂ , 20 ₁ , 20
₂ , 25 ₁ to 25 _o , and 26 ₁ to 26 _o are sliding floors.

Claims (1)

[Scope of utility model registration request] A work floor group that is divided into a number of parts and placed under both main wings of the aircraft, each of which can be raised and lowered independently and is movable, and a work floor group that is provided on the leading edge side of the work floor group to accommodate the engines of each type of aircraft. A plurality of cutout windows, a sliding floor configured in parallel to open and close these cutout windows, a plurality of movable working floors that can be raised and lowered and can be moved freely on the floor, placed on both sides and below the aircraft engine, and movement of these. 1. A scaffolding device for maintenance of an aircraft main wing, comprising a working floor and a plurality of sliding floors arranged in parallel so as to extend and retract horizontally from the edge of each floor.