JP2716308B2 - Maintenance mat - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aircraft
The present invention relates to a maintenance mat used when performing inspection and repair of road vehicles .

[0002]

2. Description of the Related Art In general, when inspecting and repairing an airplane and manufacturing and assembling an airplane, the airframe is often made of a composite material, and work is performed using an assembling / maintenance hanger constituted by pipes, crossovers, and the like. The work shall be performed so that the person does not directly get on the upper surface of the aircraft. At this time, there is a possibility that an operator may accidentally drop a tool on the machine and damage the machine. FIG.
When the work must be performed on the upper surface of the wing A of the fuselage as shown in the figure, the airplane maintenance mat B is widely spread and laid without directly riding on the fuselage.
An airplane is inspected and repaired by a worker on top of it.

[0003] In recent railway vehicles, an outer plate is used.
AL alloy honeycomb as the main structural material that also serves as the framework
Some have been used. AL alloy honeycomb, per weight
The rigidity is extremely high and the weight is reduced. However,
The outer panel is extremely thin.
There is a high risk that holes will be formed in the outer panel when tools are dropped. this
Inspection and repair of railway vehicles and production and assembly of vehicles
The maintenance mats for railway vehicles are also laid on the roof of the vehicles.
It is.

[0004]

However, the above-mentioned conventional maintenance mat B is a heavy rubber product.
Therefore, there is a problem that the handling and carrying are very inconvenient, and the folding and winding are very bulky.

[0005] The present invention is made in view of the above circumstances, it is an object of the present invention, aircraft or railway cars during the assembly of the inspection, repair and airplane or rail vehicle of the airplane or rail vehicle
By laying on both, it is possible to protect the aircraft or rail vehicle, also Hakare the dispersion of high load rigidity in a lightweight, handling, carry convenient, can be folded into a compact, it does not take up storage space development To provide a mat for use .

[0006]

Means and operation for solving the problems] integer of first invention
The equipment mat is to be used on the aircraft or
A lower surface in contact with the railway vehicle is an open end, a unit honeycomb core having an upper surface as a closed surface is provided, and an intermediate layer that continuously connects the closed surfaces of the unit honeycomb cores is provided, and the upper surface of the intermediate layer is covered. This is because the anti-slip layer is provided.

[0007] For maintenance of the first invention constructed as described above .
According to the mat, the open end of the unit honeycomb core body
Alternatively, the contact with the surface of the railcar increases the rigidity, the load can be dispersed, and the shape of the opening end has no direction, so that the mat does not shift and the weight is reduced. In addition, since it is continuously connected via the intermediate layer, it is convenient to carry and the storage space when folded can be reduced.

[0008] maintenance for the mat to a second aspect of the present invention, aircraft or
A lower surface in contact with the railway vehicle is a closed surface, a unit honeycomb core having an upper surface as an open end is provided, and an intermediate layer is provided which closes and continuously connects the open ends of the unit honeycomb cores. The present invention is configured by providing a coated anti-slip layer.

[0009] The maintenance of the second invention constructed as described above .
According to the mat , the closed surface of the lower surface of the unit honeycomb core is attracted to the surface of the body or the railway vehicle , so that the mat does not shift, the rigidity is increased, the load is dispersed, and the weight is reduced. In addition, since it is continuously connected via the intermediate layer, it is convenient to carry, and the storage space when folded can be reduced.

[0010] In addition, since the maintenance mat is formed by imparting conductivity to at least one of the intermediate layer and the anti-slip layer, the chargeability of the mat can be reduced.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the maintenance mat of the present invention will be described below with reference to the drawings. 1 to 5 show a first embodiment, and show an airplane maintenance mat 1. FIG. The mat 1 for airplane maintenance has a unit honeycomb core 4 having an open end 2 on a lower surface which is in contact with the fuselage, and a closed surface on the upper surface by a base 3. This unit honeycomb core 4
Is, for example, 3 to 10 mm thick and 3 to 20 cm square,
The material is made of polyurethane, nylon, polyvinyl chloride, olefin-based thermoplastic elastomer or the like. That is, the unit honeycomb core 4 is an aggregate of a plurality of honeycomb cores 5, and an edge 5 a is provided upright on the periphery of the unit honeycomb core 4.

On the upper surface of the unit honeycomb core 4, an intermediate layer 6 for continuously connecting the bases 11 of the unit honeycomb cores 4 is provided. This intermediate layer 6 is made of a hot melt film or the like, and may be made of the same material as the unit honeycomb core 4 described above. On the upper surface of the intermediate layer 6, a coated non-slip layer 7 is provided. The non-slip layer 7 is also made of the same hot melt film as the intermediate layer 6 described above, and may be made of the same material as the unit honeycomb core 4 described above. A net 8 impregnated with an adhesive is provided on the upper surface of the non-slip layer 7.
Are heated and fused by a hot press. Instead of the net 8, the surface of the anti-slip layer 7 may be formed in a net shape or a grid shape. Further, instead of the anti-slip layer 7, a pulverized resin having an acute angle of 3 to 7 mm in diameter may be heat-sealed.

Since the method of processing the anti-slip layer 7 is not directly related to the essence of the present invention, it is obvious that a product having the same performance can be formed by using the anti-slip processing which exerts the same effect. It is.

The mat 1 for aircraft maintenance has a rectangular shape of 1 to 3 m as a whole, and these mats are connected and fixed by a magic tape 9 or the like as shown in FIG. In addition, at least one of the intermediate layer 6 and the anti-slip layer 7 is provided with conductivity, and reduces the chargeability.

[0015] For maintenance of the first invention constructed as described above .
According to the mat , since the open end 2 of the unit honeycomb core 4 comes into contact with the surface of the body, the rigidity is increased and the body can be protected without damage even if a tool or the like is dropped. In addition, since the load can be dispersed and the shape of the opening end 2 has no directionality, the mat does not slip off on the inclined surface or curved surface of the fuselage, and the weight is significantly reduced. Moreover, since the intermediate layer 6 is continuously connected via the intermediate layer 6, the intermediate layer 6 can be folded as a fold at the time of folding, and the storage space can be reduced. Moreover, this airplane maintenance mat 1
Since the conductivity is provided, the charging property of the airframe is reduced.

Further, since the net 8 or the crushed resin is heat-sealed to the anti-slip layer 7 on the upper surface of the airplane maintenance mat 1, it is difficult for the operator to slip when riding and working.
It can work safely even on inclined or curved surfaces of the aircraft. Next, the maintenance mat of the second invention will be described. The same components as those in the first embodiment are denoted by the same reference numerals, and the description will not be repeated.

As shown in FIG. 6, the unit honeycomb core 1
The lower surface in contact with the airframe 0 is a closed surface by the base 11, and the upper surface is the open end 12. The intermediate layer 6 is welded to the open end of this upper surface, and the open ends of the unit honeycomb cores 10 are closed to be continuously connected. On the upper surface of the intermediate layer 6, a coated non-slip layer 7 is provided. This unit honeycomb core 10
Has a thickness of 3 to 10 mm, a size of 3 to 20 cm square, and is made of polyurethane, nylon, polyvinyl chloride, olefin-based thermoplastic elastomer, etc., and has a very good adsorbing property, as a closed surface of the unit honeycomb core 10. The base 11 adheres to the surface of the fuselage.

[0018] The maintenance of the second invention constructed as described above .
According to the mat , the base 11 as the closed surface of the lower surface of the unit honeycomb core 10 is attracted to the surface of the fuselage, so that it is not displaced, the rigidity is increased, and even if a tool is dropped on the fuselage, it is damaged. Without protection. Further, the load can be dispersed and the weight can be reduced. Moreover, since the intermediate layer 6 is continuously connected via the intermediate layer 6, the intermediate layer 6 can be folded as a fold at the time of folding, and the storage space can be reduced.

In the first and second embodiments described above,
The airplane maintenance mat 1 is installed on the airframe
However, even if laid on the roof of a railway car,
Functions and effects substantially similar to those of the second embodiment can be obtained.

[0020]

According to the present invention, since was constructed as described above, Fei
Inspection and repair of aircraft or railway vehicles and airplanes or railways
By laying on the fuselage or railway vehicle when assembling the vehicle , the fuselage or railway vehicle can be protected,
Light weight, high rigidity, load distribution, airframe or railway
Along the top of the vehicle flexibly, the mat does not shift,
Easy to carry and does not take up storage space when folded,
Maintenance mats can be provided.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a maintenance mat according to a first embodiment of the present invention.

FIG. 2A is a partial cross-sectional view of the maintenance mat of the embodiment, and FIG. 2B is an enlarged view of a portion X in FIG.

FIG. 3 is a plan view of the maintenance mat of the embodiment as viewed from below.

FIG. 4 is a plan view of the maintenance mat of the embodiment as viewed from above.

FIG. 5 is a plan view of the airplane on which the mat of the embodiment is laid.

6A is a partial cross-sectional view of a maintenance mat according to a second embodiment of the present invention, and FIG. 6B is an enlarged view of a Y portion of FIG.

FIG. 7 is a view showing a use state of a conventional maintenance mat .

[Explanation of symbols]

4 unit honeycomb core, 6 intermediate layer, 7 anti-slip layer.

Claims (3)

(57) [Claims] 1. A unit honeycomb core having an open end on a lower surface in contact with an airframe or a railway vehicle and an intermediate layer for continuously connecting the closed surfaces of the unit honeycomb cores with an upper surface as a closed surface; A maintenance mat characterized by comprising an anti-slip layer coated on the upper surface.
G. 2. A unit honeycomb core having a lower surface in contact with an airframe or a railroad vehicle as a closed surface and an upper surface as an open end, an intermediate layer which closes open ends of the unit honeycomb cores and continuously connects the unit honeycomb cores, and Maintenance characterized by comprising a non-slip layer coated on the upper surface of the intermediate layer
Mat . 3. The method according to claim 1, wherein at least one of the intermediate layer and the non-slip layer has electrical conductivity.
Or the maintenance mat according to claim 2.