JPH0958332A - Cold reserving cargo chamber in insulated vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cold reserving cargo chamber in an insulated vehicle constructed to restrain cost and improve a cold reserving effect. SOLUTION: An end jointing fixed frame 6 is composed of a fiber reinforcing plastic lining plate 7 to fixedly interconnecting ends of heat insulating wall materials inside a cold reserving cargo chamber 2 and a fiber reinforcing plastic outer covering plate to fixedly interconnecting ends of heat insulating wall materials outside the cold reserving cargo chamber 2, while a cavity part formed of ends 5a of adjacent heat insulating wall materials 5 in the inner part, the lining plate 7 and outer covering plate 8 is constructed to have a foaming resin material filled and foamed therein.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cold storage compartment in a cold storage vehicle for transporting food or the like that requires cold storage.

[0002]

2. Description of the Related Art Generally, a conventional cold storage room in a cold storage room has a heat insulating wall material having a styrofoam resin interposed therein,
It is formed in a box-like and airtight manner by an end coupling fixing frame provided at a corner portion of each wall surface and fixing an end portion of the heat insulating wall material.

[0003]

However, in the cold storage compartment having the conventional structure described above, the heat insulating effect by the heat insulating wall material and the heat insulating effect by the structure at the joint portion (corner portion) of each wall surface are not sufficient. Therefore, various measures have been taken such as creating a double luggage compartment on the car body from the past, but the structure is complicated and the cost is increased, and the cold insulation effect just by increasing the cost can be obtained. There was a problem saying that there was no.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a cold storage load compartment in a cold storage vehicle having a structure capable of suppressing the cost and enhancing the cold insulation effect. Further, other objects will be clarified sequentially in the contents described below.

[0005]

In order to achieve the above object, the present invention provides a heat insulation made of fiber reinforced plastic which is attached to a wall surface of a cold storage load compartment in a box-shaped cold storage vehicle. A wall material and an end-joint fixing frame that is provided at a wall-member joining portion of each wall surface and fixes an end portion of the heat insulating wall material are provided, and the end-joint fixing frame is inside the luggage compartment. Made of a fiber reinforced plastic lining plate that connects and fixes the ends of the heat insulating wall material and a fiber reinforced plastic lining plate that connects and fixes the ends of the heat insulating wall material outside the luggage compartment. A structure in which a cavity formed by the end face of the heat insulating wall material and the inner lining plate and the outer lining plate which are adjacent to each other is provided inside, and a foamed resin material is filled and foamed in the cavity. Is.

In this structure, since the heat insulating wall material and the end joint fixing frame are formed of the fiber reinforced plastic excellent in the heat insulating effect, the heat insulation of the wall surface and the end joint portion can be satisfactorily obtained by this fiber reinforced plastic. To be Further, the airtightness between the end portions of each heat insulating wall material is enhanced by the foamed resin material filled in the cavity formed by the end surface of the heat insulating wall material and the inner lining plate and the outer lining plate adjacent to each other, A high heat insulating effect and strength can be obtained between the ends of the heat insulating wall material.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. 1 is an enlarged vertical sectional view taken along the line AA of FIG. 3, FIG. 2 is a plan view of an essential part seen from the direction of arrow B in FIG.
FIG. 3 is a side view of a cold-insulated vehicle having a cold-insulated cargo room shown as an embodiment of the present invention.

In FIGS. 1 to 3, the cold storage vehicle 1 is
A cargo box 3 that constitutes a cold cargo compartment 2 (see FIG. 2) is mounted on the rear cargo bed. The packing box 3 has front, rear, left and right wall surfaces, and top and bottom wall surfaces (4).
It is made as a hexahedron. Also, on each wall surface (4),
A panel-shaped heat insulating wall member 5 made of fiber-reinforced plastic (FRP) having excellent heat insulating properties is stretched, and the heat insulating wall members 5 adjacent to each other at the corners of each wall surface (4).
The ends of are fixed to each other by an end coupling fixing frame 6.

As shown in detail in FIG. 2, the end-coupling fixing frame 6 is provided with a lining plate 7 for connecting and fixing the ends of the heat-insulating wall material 5 inside the cold-packing load chamber 2 and the cold-packing load. It is made with an outer covering plate 8 that connects and fixes the ends of the heat insulating wall member 5 outside the chamber 2,
Inside is provided a cavity formed by the end surface 5a of the adjacent heat insulating wall material 5 and the inner lining plate 7 and the outer lining plate 8, and the foamed resin material 9 such as urethane foam is filled and foamed in the cavity. The inside of this cavity is closed. In addition, the lining plate 7 is formed with a hole 10 for communicating with the hollow portion for injecting the undiluted solution of the foamed resin material 9 into the hollow portion.

Therefore, in this structure, the heat insulating wall material 5 and the inner lining plate 7 and the outer lining plate 8 of the end connecting and fixing frame 6 are formed of fiber reinforced plastics having excellent heat insulating properties. Due to the reinforced plastic, good heat insulation of the wall surface (4) and the wall material connecting portion (corner portion) can be obtained. In addition, since the foamed resin material 9 is filled and foamed in the cavity formed by the end surface 5a of the heat insulating wall material 5 and the inner lining plate 7 and the outer lining plate 8 which are adjacent to each other, at the time of production, each wall material is temporarily joined. Even if there is a gap or the like in the portion, the foamed resin material 9 enters into every corner due to foaming, the gap is completely closed, and the airtightness is enhanced, and the heat insulation between the end portions of the heat insulation wall member 5 is achieved. The effect can be obtained by simple work. As a result, the degree of freedom of the shape and structure of the connecting portion can be obtained, and it is easy to change from the prior art. Furthermore, during use, even if the joint portions of the heat insulating wall members 5 are separated to some extent due to traveling vibration or the like, the airtightness is not immediately impaired, and the joint portions are integrally formed with each heat insulating member 5. Therefore, it is also advantageous in terms of strength.

In the above description, the portion along the line AA in FIG. 3, that is, the wall material joining portion between the top wall and the side wall has been described, but in the cargo box 3 which constitutes the cold storage compartment 2, Other than this, all wall material connecting portions such as a wall material connecting portion, for example, a connecting portion between a side wall and a ceiling wall, a portion where three walls of a front wall, a bottom wall and a side wall intersect and are connected It goes without saying that the same structure is taken.

[0012]

As described above, according to the present invention,
Since the heat insulating wall material and the end joint fixing frame are formed of the fiber reinforced plastic having an excellent heat insulating effect, the heat insulation of the wall surface and the end joint portion can be satisfactorily obtained by this fiber reinforced plastic. Further, the airtightness between the end portions of each heat insulating wall material is enhanced by the sealing of the foamed resin material filled in the cavity formed by the end surface of the heat insulating wall material and the inner lining plate and the outer lining plate which are adjacent to each other. Therefore, the heat insulating effect between the end portions of the heat insulating wall material and the strength are improved.

[Brief description of drawings]

FIG. 1 is an enlarged vertical sectional view taken along the line AA of FIG.

FIG. 2 is a plan view of a main part as seen from the direction of arrow B in FIG.

FIG. 3 is a side view of a cold-insulating vehicle having a cold-insulating cargo room as an embodiment of the present invention.

[Explanation of symbols]

 1 Cold storage vehicle 2 Cold storage luggage room 3 Packing box 5 Insulating wall material 6 End connection fixing frame 7 Inner lining plate 8 Outer lining board 9 Foam resin material

Claims (1)

[Claims] 1. A heat-insulating wall member made of fiber reinforced plastic, which is attached to a wall surface of the luggage chamber, and a wall member connecting portion of each wall surface in a cold-keeping luggage chamber of a cold-insulated vehicle formed in a box shape. And an end coupling fixing frame for fixing the end of the heat insulating wall material, and the end coupling fixing frame is made of fiber reinforced plastic for connecting and fixing the ends of the heat insulating wall material inside the luggage compartment. Made of a fiber-reinforced plastic outer lining plate for connecting and fixing the ends of the heat insulating wall material outside the luggage compartment, and inside the end surface of the heat insulating wall material and the inner side. A cold storage compartment in a cold storage vehicle, wherein a hollow portion formed by a stretch plate and the outer stretch plate is provided, and a foamed resin material is filled and foamed in the hollow portion.