JPH0885478A - Packing box by bonded structure - Google Patents

Abstract

PURPOSE: To provide a strong packing box having good watertightness and simple to assemble by sticking a metal plate to at least one face of a plate-like heat insulating material, providing a connecting member having recesses retaining an adhesive on the adhesion section of the metal plate, and inserting the adhesive between the connecting member and the adhesion section. CONSTITUTION: A plate-like heat insulating material 2a made of a synthetic resin foam is provided at the center of a side wall 2, and thin metal plates 2b, 2c are stuck on both faces. The side wall 2 and a roof section 4 are connected by outside and inside conneecting members 8, 9, multiple adhesive retaining grooves 8a, 9a, retaining an adhesive 10 are provided in the longitudinal direction, and they are connected by the adhesive 10. An outside connecting member is formed with a lower side rail 11, adhesive retaining grooves 11a are formed, an inside connecting member 12 is provided on the inside of the portion where a floor section 7 is kept in contact with the side wall 2, and they are connected by the adhesive 10 of the adhesive retaining grooves 12a. The side wall 2 and a front wall are likewise connected by a front post 15 forming an outside connecting member and an inside connecting member 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint structure for a cargo box of a van type vehicle such as a van truck and a ban trailer having a heat insulating structure, and particularly to a corner portion or a flat portion of a cargo box to which a sandwich panel is joined. The present invention relates to a new joint structure.

[0002]

2. Description of the Related Art A luggage box placed at the rear of a van type vehicle is
A six-sided body including a floor portion, a front wall portion, a rear wall provided with a door for loading and unloading, left and right side wall portions, and a roof portion is assembled into a box-shaped body in the listed order. The front wall and the rear wall are connected to the floor by connecting the end of the floor material such as a board floor and the lower part of the wall by bolts or welding, and the connection between the floor and the left and right side walls is performed by connecting the inside lower part of the side wall with the flushing side and the floor. The ends of the constituent board floors are joined by welding, and the cross member provided at the bottom of the floor and the outer lower side rails of the side walls are joined by rivets or the like. The connection between the front and rear walls and the left and right side walls is
Similarly, it is joined by rivets or the like via the side posts. Similarly, the roof portion is also placed on the side wall, the front wall, and the rear wall, and the upper end portions of the face bodies with which the four sides are in contact are joined by rivets or the like.

[0003] In a cold storage / freezing van vehicle, there is a refrigerating packing box in which a synthetic resin liquid is injected and foamed in the space between the inner and outer clad boards to assemble and form a heat insulating layer after the box body is assembled. There is a frozen packing box in which a sandwich panel having no frame inside is assembled in a box, in which a heat insulating material is firmly sandwiched. In the former case, the side wall skeleton has upper and lower end portions of side posts laid at regular intervals fixed to the upper side rail and the lower side rail by rivets or the like, which provides strength to the hexahedron packing box. As for the skeleton of the roof part, the roof beams laid on the roof plate at regular intervals are fixed to the upper and side rails of the side wall to give strength.

The latter is a packing box using a sandwich panel in which a heat insulating material is sandwiched between two inner and outer plates,
It is used as a light-weight luggage box for refrigerating vehicles and cold storage vehicles of medium-sized vehicles and below, but even when joining panels, the four peripheral edges of one face piece are adjacent to the edges of the adjacent face piece with rivets etc. via corner members etc. It is similar in that it is joined by, but is different in that side posts and roof beams are not provided inside the face piece.

[0005]

Conventionally, on-site assembly work by rivets and the like of face pieces has been processed into the shape and dimensions predetermined in the design drawing at the manufacturing stage of each face piece. Aligning the center lines of the bolt holes with the face pieces to be joined, such as hammering, applying sealant, covering the cover plate, etc., is a laborious process that requires a lot of man-hours. Changing the pitch depending on the size on the side of the sea (for example, different cab back or different W / B) is a troublesome work that involves changing the design drawing.

For this reason, various performances of the adhesive were investigated and experiments were repeated to arrive at a bonding structure using an adhesive instead of the rivet. The adhesive strength of the adhesive is superior to that of rivets in terms of tensile tension and shearing force. Conventionally, some adhesives or sealants have been used supplementarily to ensure water-tightness at the joints with rivets, etc., but adhesives are mainly used in the corner joint structure of sandwich panel luggage boxes. There is no example that was done. In order to secure the watertightness of the rivet connecting part, an example in which a cover for covering the head of the rivet is adopted as shown in FIG.
Issue gazette).

As described above, in the sandwich panel van type vehicle, the joining structure of the luggage box using the joining member such as the rivet is as follows. Water penetrates through the holes of the connecting member, 2. 2. Many man-hours and poor workability. Since the heads of the joining members are exposed, the appearance is unfavorable in terms of design, and there are various inconvenient problems such that the joining portions are not strongly joined. The present invention is intended to eliminate such a conventional inconvenience, and an object thereof is to provide a panel van type vehicle with good watertightness, easy assembly, and a stronger joint portion than a conventional riveting. An object of the present invention is to provide a novel packing box which does not use rivets or other tacks and whose head does not project to the surface.

[0008]

In order to achieve the above-mentioned object of the present invention, the present invention provides a packing box having a hexahedral adhesive structure in which edges of plate-like bodies are connected to each other. Attach a metal plate to at least one surface of the formed heat insulating material,
A plate-shaped material in which the bonding portion of the metal plate is formed flat, a bonding member that is in contact with the bonding portion of the plate-shaped material, and has a recess for retaining the adhesive in the bonding portion, the bonding member and the plate There is provided a structure of a luggage box having an adhesive structure, the adhesive box being provided between the adhesive portion of the sheet material and an adhesive agent for adhering the both.

[0009]

Operation: A metal plate is attached to a heat insulating material, two plate-shaped materials having the adhesive portion of the metal plate formed flat are arranged, and the two adhesive portions are arranged so as to straddle a joining member. The portion and the bonding member are bonded with an adhesive. In addition, a recess for retaining an adhesive is provided in a portion of the joining member that is in contact with the adhesive portion to retain the adhesive and increase the adhesive force.

[0010]

An embodiment of the present invention will be described in detail with reference to the drawings. As shown in FIG. 1, a packing box 1 is a hexahedron including side walls 2 and 3, a roof portion 4, a front wall 5, a rear wall 6 provided with openable / closable doors 6a and 6b, and a floor portion 7. Is. The rear wall 6 is composed of doors 6a and 6b having a heat insulating structure which is provided in a double door opening type with respect to a gate frame composed of a rear lower rail 7e, a header 17 and a rear side post 18. FIG. 2 is A-A of FIG.
It is sectional drawing cut | disconnected along the line. As can be seen from FIG. 2, the floor 7 has a plate-shaped heat insulating material 7a made of foamed synthetic resin in the center, and thin metal plates are attached to both surfaces thereof. 7b is a floor plate provided on the upper surface of the floor 7, and 7d
Is a front lower rail provided at the lower end of the front wall 5, 7e is a rear lower rail provided at the lower end of the rear wall 6, and 7f is a lateral joist. The front wall 5 has a plate-shaped heat insulating material 5a made of foamed synthetic resin in the center, and thin metal plates 5b and 5c are attached to both surfaces thereof. The roof portion 4 has a plate-shaped heat insulating material 4a made of foamed synthetic resin in the center, and thin metal plates 4b and 4c are attached to both surfaces thereof. Incidentally, the door portion of the rear wall 6 has a structure for blocking the inside and outside of the luggage box at the portions a and b, but this is outside the scope of the present invention, so the description thereof will be omitted.

FIG. 3 is a sectional view taken along the line BB of FIG. As can be seen from FIG. 3, the side wall 2 has a plate-shaped heat insulating material 2a made of foamed synthetic resin at the center, and thin metal plates 2b and 2c are attached to both surfaces thereof. The door portion of the rear wall 6 that opens and closes has a structure that shuts the inside and outside of the luggage box at d and e portions, and the door swings at the hinge portion of c. Since it is outside the scope of the above, its explanation is omitted.

Next, a description will be given of the mutual connection of the face bodies forming the packing box. FIG. 4 is a cross-sectional view taken along the line CC of FIG. As can be seen from FIG. 4, the side wall 2 and the roof portion 4 are joined by the outer joint member 8 and the inner joint member 9. The outer joint member 8 is an extruded aluminum material and has a substantially L-shaped cross section. FIG. 5 shows an enlarged view of a circle indicated by D in FIG. Outer joining member 8
A plurality of adhesive retaining grooves 8a for retaining the adhesive in the longitudinal direction of the wall material are provided in the longitudinal direction of the surface of the wall material that comes into contact with and adheres to the wall material. The depth of the adhesive retaining groove 8a is preferably about 2.5 mm, and the adhesive force is lowered even if it is deeper or shallower than this. An inner joint member 9 is bonded to an inner corner of the joint between the side wall 2 and the roof portion 4. The inner joining member 9 is an extruded aluminum material, and has a substantially L-shaped cross section.
As shown in FIG. 5, on the surface of the inner joining member 9 that comes into contact with and adheres to the wall material, there are provided a plurality of adhesive retaining grooves 9a for retaining the adhesive in the longitudinal direction thereof. It is provided in the direction. The depth of the adhesive retaining groove 9a is about 2.5 mm. Since the outer and inner joining members 8 and 9 are extruded products, the adhesive retaining groove preferably has a groove shape formed in the longitudinal direction of the joining member. In the state where the side wall 2 and the roof portion 4 are connected by the outer joint member 8 and the inner joint member 9, the adhesive 10 bonds them between them. Moreover, since the adhesive retaining grooves 8a and 9a are filled with the adhesive and solidified, the adhesive force is enhanced.

In FIG. 4, reference numeral 11 denotes a lower side rail attached to the lower edge of the side wall 2. The upper end portion of the lower side rail along the side wall 2 forms an outer joint member, and the portion contacting the side wall 2 has an adhesive. Retaining grooves 11a are formed, and the adhesive 10 is interposed between them. 12 is the floor 7 and the side wall 2
It is an inner joint member that is adhered to the inside of the contacting portion of the above with an adhesive 10 and supports these from the inside. An adhesive retaining groove 12a is formed in a portion of the inner joint member 12 which is in contact with the floor portion 7 and the side wall 2, and when these are retained by the inner joint member 12, the adhesive 10 is provided therebetween. Combines both. Moreover, since the adhesive retaining groove 12a is filled with the adhesive and solidified, the adhesive force is enhanced. Reference numeral 14 is a connecting member for connecting the lower side rail 11 and the lateral joist 7f.

The side wall 2 and the front wall 5 are joined by a front post 15 and an inner joining member 16 which form an outer joining member in the same manner as described above. The connection between the rear lower rail 7e of the rear wall 6, the header 17, the rear side post 18 and the gate frame of the roof 4 and the side walls 2 and 3 of the roof 4 and the floor 7 is performed by the same method as described above. The front wall 5 and the floor portion 7 The front wall 5 and the roof portion 4 are also joined in the same manner as the above joining method.

Next, the assembling of the luggage box according to the present invention will be described. First, the pretreatment as described below is performed. 1. The front lower rail 7d of the front wall 5 is adhered to the lower end of the front wall. 2. Similarly, the side lower rails 11 on the left and right wall sides are bonded to the lower end portions of the side walls. 3. The front upper rail is bonded at the stage of joining the front wall and the roof. 4. Similarly, the side upper rails are bonded at the stage of joining the side wall and the roof. 5. The header, the rear lower rail, and the rear side post integrally form a gate frame of the rear wall. Next, a procedure for assembling the face bodies such as the front wall, the left and right side walls, the roof portion, the rear wall, and the floor portion, which have been pretreated as described above, will be described. 1. The front side posts with adhesives are vertically joined along both outer corners of the front wall, which are formed by abutting the side wall and the front wall. For adhesion, tents are temporarily fixed with rivets (temporarily fixed at a pitch of 600 mm) until cured. 2. The floor portion is bonded to the front lower rail, which is previously bonded to the lower portion of the front wall, by accumulating an adhesive on the joint surface with the floor portion of the front lower rail. Use temporary fastening fasteners. 3. After assembling the front wall and the side wall, the roof portion is placed on the front wall and the side wall, and the adhesive is collected and bonded to the joint surface of the front upper rail along the corner where the roof portion is abutted, and the same. The side upper rails are adhered as described above, but as an embodiment of the present invention, both the side and front upper rails are integrally formed and preformed into, for example, an L-shape or a U-shape. Things can be used. 4. Since the rear department entrance is a door for loading and unloading, in the case of a double door, the header, rear lower rail, and side posts that compose it are welded or bolted to the inside of the concave cross-sectional form of the entrance. The roof part,
The rear end of the box, which is joined to the left and right side walls and the floor, is inserted to form a hexahedron.

In the above-described embodiment of the present invention, it is necessary to fix the two wall surfaces so that the joint member and the wall surface do not move relative to each other until the adhesive solidifies when the two wall members are joined by the joint member. is there. In such a case, small rivets are driven from the outer surface of the joining member toward the wall surface to fix them until the adhesive is solidified, or the adhesive tape is applied between the joining member and the wall surface until the adhesive is solidified. It is good to stick it so as to cover it.

In the above embodiment, the portions in which the walls are in contact with each other at a right angle are bonded with an adhesive, but two walls of a sandwich structure having a planar structure can be bonded in a planar shape. . As shown in FIG. 6, the wall surfaces 20 and 21 are connected to each other in a plane by two connecting members 22 and 23. The wall surface 20 has a heat insulating material 24 at the center, and metal plates 25 and 26 are attached to the outside thereof. 27 and 2
8 is a mountain of corrugates. The wall 21 has a heat insulating material 2 at the center.
9 and metal plates 30 and 31 are attached to the outside thereof. Note that 32 and 33 are mountains of corrugates.

The connecting members 22 and 23 have adhesive retaining grooves 34 and 35 formed inside. The adhesive portion of the wall surface joined by the joining member is formed flat. And
A solidified adhesive is interposed between the joining member and the metal plate, and the adhesive retaining groove is also filled with the adhesive.
In this embodiment, the boundary between the heat insulating material may be bonded with an adhesive.

In the above embodiment, since the joining member was formed by extrusion molding, the portion for retaining the adhesive was formed by the groove extending in the longitudinal direction thereof. However, this shape is not limited to the groove, and may be, for example, a circular recess, a hexagonal honeycomb-shaped recess, or a myriad of small recesses. Further, the heat insulating material need not be a foamed synthetic resin, and may be a plate having a heat insulating property such as a plywood board of wood, a laminated material, or a plate formed by compression-molding sawdust.

[0020]

As described in detail above, the present invention is
In a packing box having a hexahedral bonding structure in which edges of plate-like bodies are connected to each other, a metal plate is attached to at least one surface of a heat insulating material formed in a plate shape, and the bonding portion of the metal plate is formed flat. A plate-like material, a bonding member that is in contact with the adhesive portion of the plate-shaped material, and has a recess for retaining the adhesive in the adhesive portion, and is interposed between the bonding member and the adhesive portion of the plate-shaped material. Since the adhesive for adhering the both is provided, the joint between the wall surface and the wall surface is tightly joined by the adhesive, so that the watertightness of the joined portion becomes extremely good. Further, since no rivet is used for the adhesive portion, this portion is flat, and even if an object comes into contact with this portion, it does not get caught and the functionality is good. Further, in addition to having a flat adhesive surface, since the joint member is provided with a recess for retaining the adhesive, there is an effect that the adhesive force is large.

[Brief description of drawings]

FIG. 1 is a perspective view of a luggage box according to the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

3 is a cross-sectional view taken along line BB of FIG.

4 is a cross-sectional view taken along the line CC of FIG.

5 is an enlarged cross-sectional view showing a circle D portion of FIG. 4 in an enlarged manner.

FIG. 6 is a sectional view of another embodiment of the present invention.

FIG. 7 is a sectional view of a conventional example.

[Explanation of symbols]

 1 ... Packing box 2 ... Side wall 2a ... Insulation material 2b ... Metal plate 2c ... Metal plate 3 ... Side wall 4 ... Roof Part 4a ... Heat insulating material 4b Metal sheet 4c Metal plate 5 Front wall 5a Heat insulating material 5b Metal plate 5c Metal Board 6 ... Rear wall 6a ... Door 6b ... Door 7 ... Floor 7a ... Insulation 7b ... Floor board 7d ... Front lower rail 7e ... ・ Rear lower rail 7f ・ ・ ・ ・ Horizontal joist 8 ・ ・ ・ Outer joining member 8a ・ ・ ・ ・ Adhesive retaining groove 9 ・ ・ ・ ・ ・ Inner joining member 9a ・ ・ ・ ・ ・ ・ Adhesive retaining Groove 10 ... Adhesive 11 ... Lower side rail 11a ... Adhesive retaining groove 12 ... Internal joining member 14 ... Coupling member 15 ...・ ・ ・ Front post 16 ・ ・ ・ ・ ・ Inner coupling member 17 ・ ・ ・ Header 18 ・ ・ ・ ・ ・ Rear side post 20 ・ ・ ・ Wall surface 21 ・ ・ ・ Wall surface 22 ・ ・ ・ Coupling Member 23 ... Coupling member 24 ... Insulation material 25 ... Metal plate 26 ... Metal plate 27 ... Mountain 28 ... Mountain 29 ...・ ・ ・ Insulation 30 ・ ・ ・ Metal plate 31 ・ ・ ・ Metal plate 32 ・ ・ ・ Mounting 33 ・ ・ ・ Mounting 34 ・ ・ ・ Adhesive retaining groove 35 ・ ・ ・・ Adhesive retention groove

Claims (11)

[Claims] 1. A packing box having a hexahedral adhesive structure in which edges of plate-like members are connected to each other, wherein a metal plate is attached to at least one surface of a heat insulating material formed in a plate shape, and the adhesive portion of the metal plate is attached. A plate-shaped material having a flat surface, a bonding member that is in contact with the bonding portion of the plate-shaped material, and has a recess for retaining the adhesive in the bonding portion; and a bonding portion between the bonding member and the plate-shaped material. A packing box having an adhesive structure, characterized in that it comprises an adhesive which is interposed between the two and adheres them. 2. The packing box according to claim 1, wherein the bonding portion is a ridge portion of a hexahedron packing box. 3. The packing box according to claim 1, wherein the bonding portion is a flat surface portion of the packing box. 4. The packing box according to claim 1, wherein the plate-shaped body has a structure in which metal plates are attached to both surfaces of a heat insulating material. 5. The packing box with the bonding structure according to claim 4, wherein the bonding portion is outside and inside a ridge portion of a hexahedron packing box. 6. The packing box with the bonding structure according to claim 4, wherein the bonding portion is outside and inside the planar surface portion of the packing box. 7. The packing box with an adhesive structure according to claim 1, wherein the recess for retaining the adhesive provided in the adhesive portion of the joining member has a long groove shape extending in the longitudinal direction of the joining member. . 8. The packing box according to claim 1, wherein the recess for retaining the adhesive provided in the bonding portion of the joining member is a circular recess. 9. The packing box according to claim 1, wherein the recess for retaining the adhesive provided in the bonding portion of the joining member has a hexagonal honeycomb shape. 10. The packing box according to claim 1, wherein the heat insulating material of the plate-shaped body is a plate material based on wood. 11. The packing box according to claim 1, wherein the heat insulating material of the plate-shaped body is a plate material of foamed synthetic resin.