Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
1999-11-12
2001-08-14
Dixon, Merrick (Department: 1774)
Stock material or miscellaneous articles
Composite
Of inorganic material
C428S212000, C156S272200, C156S182000, C156S307100
Reexamination Certificate
active
06274255
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an interior component decorated with a vinyl leather which is used as a surface decoration of an interior of an aircraft, and more specifically, relates to an interior component having the required combustion characteristics, and the method of manufacturing the same.
2. Description of the Prior Art
Heretofore, a combustion characteristic is regulated as one of the requirements for an interior decoration of an aircraft, in order to prevent fire from occurring in case of an aircrash and the like.
As an interior of an aircraft, such as a console, it may be required to decorate the surface of an aluminum plate which is a base material with a vinyl leather as a surface material.
The structure of an interior component recommended by manufacturers of vinyl leather is explained according to FIG.
3
.
An interior component
10
comprises a vinyl leather
15
pasted as a surface material to an aluminum plate
11
through a soluble self-digesting adhesive
13
.
The adhesing strength of the aluminum plate
11
and the vinyl leather
15
of the interior component
10
is weak, and inconveniences such as exfoliation of the surface material (vinyl leather) occurred during combustion test.
SUMMARY OF THE INVENTION
Also, combustion index to time is experimented using the interior component
10
having the above-mentioned structure. The result is shown in FIG.
4
.
The graph shows the relation between time and thermal energy when thermal energy is provided to the interior component
10
. According to this graph, the component
10
reached the peak value of 80.87 kW/m
2
at approximately 20 seconds after heating.
A regulation concerning heat value during a combustion is provided to the materials of this kind in an aircraft. According to the regulation, the peak heat value should be 65 kW/m or less, and total heat value should be 65 kW min/m
2
or less.
The total heat value to time according to the above-mentioned experiment is shown in TABLE 1.
TABLE 1
(unit: kW · min/m
2
)
Time (minutes)
sample
00:30
01:00
02:00
03:00
05:00
1
15.92
20.47
27.01
35.22
55.89
From the experiment, the conventional interior component
10
showed the total heat value of 65 kW·min/m
2
or less and is within the range of the regulation. However, the peak heat value exceeded the regulation, and moreover, reached the peak heat value at such a short period of time as 20 seconds.
That is, when fire occurs, the interior equipped in an aircraft reaches the peak heat value in a short period of time, and there is not enough time for passengers to escape. Therefore, it cannot be used as the interior of an aircraft alone.
The present invention provides an interior component which could maintain the total heat value within the regulation, lowers the peak heat value, as well as delaying the time before reaching the peak heat value. Moreover, it provides a method of manufacturing an interior component which could improve productivity by securing the adhesive strength of a surface material.
A component for decorating the interior of an aircraft composed by adhering a surface material for decorating the surface of a base material according to the present invention comprises a first adhesive layer formed by applying a first adhesive on the adhesive layer, a surface material having a second adhesive layer formed by applying a second adhesive to the upper surface of the first adhesive layer, and a base material adhesive layer formed by applying the second adhesive to the adhering surface of the base material, which are adhered together.
The first adhesive is a soluble self-digesting adhesive, the second adhesive is a contact adhesive of a two-part synthetic resin. The first adhesive layer has a thicker layer compared to the second adhesive layer, and also has a filling effect of the surface material.
The method of manufacturing the interior component of an aircraft according to the present invention consists of a first adhesive layer forming step where a first adhesive consisting of a soluble self-digesting adhesive is applied to the adhering surface of the surface material, a second adhesive layer forming step where a second adhesive consisting of a contact adhesive of two-part synthetic resin is applied to the upper surface of the first adhesive layer, a base material adhesive layer forming step where the second adhesive consisting of a contact adhesive of two-part synthetic resin is applied to the adhering surface of the base material, and an adhering step where the second adhesive layer of the surface material and the adhesive layer of the base material are adhered.
REFERENCES:
patent: 3919035 (1975-11-01), Warrach
patent: 4746385 (1988-05-01), Wagner et al.
patent: 6048622 (2000-04-01), Hagood, IV et al.
patent: 6050315 (2000-04-01), Deckers et al.
Hayakawa Tomio
Kikuchi Hiroaki
Armstrong Westerman Hattori McLeland & Naughton LLP
Dixon Merrick
Jamco Corporation
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