JPH11100915A - Thermal insulating structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a thermal insulating structure for sufficiently displaying the effect of thermal insulating material and, at the same time, to let the ther mal insulating structure have damping function, if necessary, in the said thermal insulating structural body used for structure of railway car, etc. SOLUTION: For an aluminum hollow shape steel formed of a pair of face plates 2a and 2b, a rib 1 connecting them and a T-shaped rib 7 projected to the inside of a car, a damping material 8 is thermally welded to the rib 1, a damping thermal insulating material 9 is thermally welded to the face plate 2b on an interior finishing side, and a thermal insulating material 10 is stuck on the front end of the T-shaped rib 7. The damping thermal insulating material 9 shuts off heat propagated to the face plate 2b on the interior finishing side through the rib 1, and heat propagated to an interior panel 11 and the inside of the car is reduced. The damping material 8 reduces vibration propagated to the face plate 2b on the interior finishing side through the rib 1, and the damping thermal insulating material 9 controls the vibration of the face plate 2b to reduce vibration propagated to the interior panel 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulating structure for a structural member requiring a heat insulating effect, such as a structure for a transport machine such as an automobile, a railway vehicle, a ship, and an aircraft, and a floor, a ceiling, and a wall material of a building structure. About.

[0002]

2. Description of the Related Art A hollow profile having a pair of face plates and a rib connecting them has a large second moment of area per unit weight and high rigidity, so that it is used as a structural member of a railway vehicle or the like. Have been. For example, JP-A-7-16
Japanese Patent No. 4584 discloses such a rib of hollow profile and / or
Alternatively, it is described that a damping shape member having a damping function by attaching a damping resin to a face plate is used as a structure for a transport machine.

Further, studies have been made on the heat insulating structure of such a hollow profile. For example, Japanese Patent Laid-Open No. 8-1833 discloses a rib 1 and a face plate 2 on the outside of the vehicle as shown in FIG.
Described is a heat-insulating section for a transport machine in which a sheet-like heat-insulating resin foam 3 is attached to the inner surface of a to enhance the heat-insulating function. In this case, by using a material having a vibration damping function as a heat-insulating resin foam, it is said that a heat-insulated profile having both a heat-insulating property and a vibration-damping property can be obtained.

[0004]

However, since the ribs serve as heat bridges (heat bridges) in the hollow profile, the heat insulating structure in which the heat insulating material is adhered to the inner surface of the hollow portion as described above has a problem.
Heat transmitted from the face plate on the outside (outside air) side to the face plate on the indoor side through the ribs cannot be cut off (see the arrow in FIG. 4).
There is a problem that the effect of the heat insulating material is not sufficiently exhibited.
The present invention has been made in view of the above-mentioned problems of the related art, and, for a pair of face plates and a hollow profile having ribs connecting them, to obtain a heat insulating structure sufficiently exhibiting the effect of a heat insulating material, and if necessary. The purpose is to make the heat insulating structure have a vibration damping function.

[0005]

The heat insulating structure according to the present invention is characterized in that a heat insulating material is provided on the outer surface of the interior side face plate of a hollow profile having a pair of face plates and a rib connecting them. And At this time, the heat insulating material may be a vibration damping heat insulating material having a vibration damping function. Further, the heat insulating material or the vibration damping heat insulating material may be provided on the face plate via the vibration damping material,
Further, if necessary, the rib may be provided with a damping material.

In the heat insulating structure according to the present invention, the heat transmitted from the outside (or to the outside) is cut off by using the rib as a thermal bridge by providing the heat insulating material on the outer surface of the interior side face plate of the hollow profile. And has an excellent heat-insulating function as compared with the conventional heat-insulated profiles described in JP-A-8-1833. Then, this heat insulating material is used as a vibration damping heat insulating material having a vibration damping function, or the heat insulating material or the vibration damping heat insulating material is provided on the face plate via the vibration damping material (see FIG. 3), so that the hollow shaped material is damped. By providing the ribs with a damping material, it is possible to obtain a heat insulating structure having the same damping property as the damping shape member described in JP-A-7-164584.

In the heat insulating structure of the present invention, a heat insulating material is attached to the outer surface of the face plate on the interior side of the hollow shape member.
When installing vibration damping insulation, it can better prevent transmission of vibration to the interior material, and in actual transport structures and building structures, it can not be installed outside the hollow shaped material outdoor. Many (especially in the case of structures for transport aircraft, practically impossible), even if it is installed, it is impossible to install it over the entire circumference, and it is impossible to prevent heat energy from entering except for the mounting part, but it is installed over the entire circumference on the interior side Because it can block the transfer of thermal energy.

Further, in the heat insulating structure according to the present invention, a rib for attaching an interior material such as an interior panel, for example, a T-shaped rib may be protrudingly provided on the outer surface of the interior side face plate of the hollow profile. it can. At this time, it is preferable to interpose a heat insulating material between the rib and the interior panel. As a result, heat transmitted from the outside (or to the outside) can be cut off using the rib as a thermal bridge. When the heat insulating material is an elastic or viscoelastic heat insulating material, an effect of blocking vibration to the interior material can be provided.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION As the hollow profile used in the present invention, an aluminum (aluminum or aluminum alloy) extruded profile which is lightweight and has an arbitrary sectional shape is preferable. On the other hand, as the heat insulating material provided on the outer surface of the interior side face plate in the present invention, for example, a matrix such as a crosslinked polyethylene foam, a modified asphalt resin foam, or a urethane foam is a closed or open cell resin foam made of a hard or soft resin. In addition to the body, materials known as heat insulating materials such as glass wool, felt fiber mats, nonwoven fabrics, and fiber aggregates can be appropriately used. These heat insulating materials can be adhered to the surface of the hollow shape member with an adhesive.
As described in Japanese Patent No. 1833, a cross-linked polyethylene foam or a modified asphalt-based resin foam is placed on a surface of a hollow profile, heated to foam and simultaneously heat-fused to the surface. It is desirable for improving the performance. In the case where an age-hardened aluminum shape is used as the hollow shape, this heating can be performed also as heating for age hardening. In addition,
The modified asphalt-based resin foam has a vibration damping function, and corresponds to the vibration damping heat insulating material of the present invention. The vibration damping material is a viscoelastic body that converts vibration energy into heat energy to dampen the vibration. Specifically, a modified asphalt-based resin or a butyl rubber-based special synthetic rubber described in JP-A-7-164584 is used. It is preferable to attach to the hollow profile by heat fusion. Further, in the present invention, any of the above-mentioned heat insulating materials can be used as the heat insulating material interposed between the rib and the interior panel. Suitable as a heat insulating material having an effect of blocking vibration, for example, urethane foam,
Styrofoam, anti-vibration rubber, and the like.

FIG. 1 specifically illustrates an example of a heat insulating structure used for a railway vehicle, and includes a pair of face plates 2a and 2b.
And a rib 1 connecting them, an aluminum hollow profile formed of a T-shaped rib 7 protruding inward from the interior side face plate 2b, a heat-fusible damping material 8 attached to the rib 1, and an interior A heat-sealing type vibration damping heat insulating material 9 attached to the outer surface of the side face plate 2b, and a heat insulating material 10 attached to a portion of the T-shaped rib 7 facing the face plate 2b. An interior panel 11 is attached via a heat insulating material 10.

The heat-fusible damping material 8 is, for example, a sheet of a denatured asphalt-based resin bent and placed in a V-shape on the rib 1 and heat-sealed. The heat insulating material 9 is, for example, a sheet of a foamed modified asphalt-based resin placed on the outer surface of the face plate 2b, which is heated and fused at the same time as the foaming is performed. When it is made of an alloy, it is also used as an aging treatment. The heat insulating material 10 is, for example, a urethane foam sheet adhered with an adhesive.

In this example, the space between the outer surface of the face plate 2b and the interior panel 11 is filled with the vibration-damping and heat-insulating material 9 so that the vibration-damping and heat-insulating material 9 is in close contact with the interior panel 11.
The vibration damping property can be imparted to the interior panel 11 without separately performing the vibration suppression processing on the interior panel 11. As shown in FIG. 2, as a method of filling the interior panel 11 densely, after damping the heat insulating material 9 to a height higher than the mounting position of the interior panel 11 on the T-shaped rib 7, the interior panel 11 is removed. A method of joining to the T-shaped rib can be mentioned (however, the heat insulating material 10 is attached to the side facing the interior panel 11 before joining). By doing so, the compressed vibration damping heat insulating material 9 is brought into close contact with the interior panel 11, and vibration damping properties can be imparted. However, even when an air layer is provided between the damping heat insulating material 9 and the interior panel 11, the damping action on the face plate 2b is ensured.

In this heat insulating structure, the vibration damping heat insulating material 9 thermally fused to the outer surface of the face plate 2b blocks heat from the outside of the vehicle transmitted to the interior side face plate 2b through the face plate 2a and the ribs 1. The heat insulating material 10 interposed between the T-shaped rib 7 and the interior panel 11 blocks the heat transmitted from the face plate 2b to the T-shaped rib 7, and reduces the heat transmitted to the interior panel 11 and the room. On the other hand, the vibration damping material 8 thermally fused to the rib 1 reduces the vibration transmitted from the face plate 2a on the outside of the vehicle to the interior face plate 2b through the rib 1, and the vibration damping heat insulating material 9 thermally fused to the face plate 2b is provided. The vibration of the face plate 2b is suppressed, and the vibration transmitted to the interior panel 11 is reduced. Further, the interior panel 11 is provided with a vibration damping property by the vibration damping heat insulating material 9 and the heat insulating material 10.

In this heat insulating structure, the interior panel 1
Although the thermal bridge was cut off by interposing the heat insulating material 10 between the 1 and the T-shaped rib 7, the number of the T-shaped ribs 7 is required for mounting the interior panel 11 even when such heat insulating material is not interposed. By using a minimum number, the number of thermal bridges between the hollow profile and the interior panel 11 can be reduced, the heat insulation performance can be improved, and the heat transferred to the interior panel 11 can be reduced.

[0014]

According to the present invention, the heat-insulating material is provided on the outer surface of the interior-side face plate of the hollow profile formed by the pair of face plates and the ribs connecting them, so that the heat-insulating material is compared with the conventional heat-insulating shape. Has excellent heat insulation function. Further, by using this heat insulating material as a vibration damping heat insulating material having a vibration damping function, or by providing the heat insulating material or the vibration damping heat insulating material on a face plate on the interior side via a vibration damping material,
Vibration damping properties can be imparted to the hollow profile, and furthermore, by providing the ribs with damping materials, a heat insulating structure having excellent vibration damping properties can be obtained. Also, when a rib for attaching the interior material is provided protrudingly on the outer surface of the face plate on the interior side of the hollow mold material, by interposing a heat insulating material between the rib and the interior material,
Further, the heat insulation can be improved.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view of a heat insulating structure according to the present invention.

FIG. 2 is a view for explaining a method of filling a vibration damping material between a face plate and an interior panel in the heat insulating structure.

FIG. 3 is a schematic cross-sectional view of a heat insulating structure according to the present invention in which a damping material and a heat insulating material are provided on a face plate on the interior side; It is a schematic diagram (b).

FIG. 4 is a sectional view of a conventional heat-insulated profile.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rib 2a Face plate of vehicle exterior 2b Face plate of interior side (vehicle interior) 4 Damping material 5 Heat insulating material 6 Damping heat insulating material 7 T-shaped rib 8 Heat fusion type vibration damping material 9 Heat fusion type vibration damping heat insulating material 10 Insulation material 11 Interior panel

Continuation of the front page (72) Inventor Toshihiko Sasaki 14-1, Chofu Minatomachi, Shimonoseki City, Yamaguchi Prefecture Inside of Kobe Steel's Chofu Works (72) Inventor Hiromichi Okumura 4-3-1 Bigocho, Chuo-ku, Osaka-shi, Osaka Kobe Steel, Ltd.Osaka branch office

Claims (7)

[Claims] 1. A heat insulating structure, wherein a heat insulating material is provided on an outer surface of an interior side face plate of a hollow profile having a pair of face plates and a rib connecting them. 2. The heat insulating structure according to claim 1, wherein the heat insulating material is a vibration damping heat insulating material having a vibration damping function. 3. The heat insulating structure according to claim 1, wherein a heat insulating material is provided on an outer surface of the interior side face plate via a vibration damping material. 4. The heat insulating structure according to claim 1, wherein the rib is provided with a damping material. 5. The heat-insulating structure according to claim 1, wherein a rib for attaching the interior material is provided so as to protrude from an outer surface of the face plate on the interior side of the hollow shape material. 6. The heat insulating structure according to claim 5, wherein the rib is a T-shaped rib. 7. The heat insulating structure according to claim 5, wherein a heat insulating material is provided between the rib and the interior material.