JPH11198865A - Body panel for vehicle and panel manufacturing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a body panel for vehicle excellent in the heat insulating performance and offer a panel manufacturing device suitable for manufacture of a large-sized body panel, etc. SOLUTION: A panel core 3 is formed by fitting a heat insulating plate material in a framing 1 consisting of a peripheral frame 1A made of a square metal cylinder and a reinforcing frame 1B laid inside the peripheral frame 1A. An exterior wall material 4 and interior wall material 5 are laid on the panel core 3 and they are subjected to vacuum adhesion. A clamping rod 11 having a rectangular section is furnished circumferentially at the periphery of a base 10. The peripheral edge of a vacuum sheet 20 is fixed to the clamping rod 11 using a plurality of clamps 12 which press the outer side face of the clamping rod 11. The vacuum sheet 20 is kept in the sealed condition by the top side edge of the clamping rod 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for manufacturing a body panel and a panel of a special vehicle such as a refrigerator car or a camper, and more particularly to a body panel and a panel having excellent heat insulating properties manufactured by using a vacuum sheet. It relates to a manufacturing device.

[0002]

2. Description of the Related Art Conventionally, as a body panel formed by a vacuum forming apparatus, there is an application for an automobile body panel described in Japanese Patent Publication No. 6-88237. In this application, a film to which a paint coat and a clear coat are adhered is vacuum-adhered to the surface of the body instead of the work of painting the body panel.

On the other hand, as a method of forming a laminated panel using a vacuum sheet, a method of manufacturing a laminated body described in Japanese Patent Publication No. Sho 62-55982 and a sandwich panel described in Japanese Utility Model Publication No. Sho 60-30050 are disclosed. There are applications such as molding equipment. In the former manufacturing method, a thermoplastic resin sheet is disposed on both the front and back surfaces of the laminate, and the periphery of the sheet is heat-sealed and sealed, and then the inside of the sealed sheet is degassed by a vacuum pump. is there.

In the latter molding apparatus, a seal frame and a lip frame are provided around a vacuum bag-type seal, and the adhesiveness of the sheet is enhanced by utilizing a step between the seal frame and the lip frame. In addition, a cushion tube is interposed between the vacuum suction tube and the vacuum pump in order to uniformly suction the entire sheet.

[0005]

However, a vehicle body panel formed by a conventional vacuum forming apparatus is used instead of painting the surface of the panel, and does not change the structure of the body panel itself. Was. Therefore,
With a conventional vacuum forming apparatus used for a vehicle body panel, it is not possible to manufacture a special body panel having excellent heat insulation properties, such as a refrigerator car or a camper.

[0006] On the other hand, in the conventional methods of forming a laminated panel using a vacuum sheet, although all of them show an improvement for improving the sealing property of the sheet, the heat insulating property suitable for a refrigerator car, a camper car, etc. No special body panels are mentioned.

Moreover, in the former method using a vacuum sheet, the periphery of the thermoplastic resin sheet is heat-sealed and hermetically sealed. Therefore, a separate device for this heat-sealing is required, so that a large-sized panel is required. It is not suitable for manufacturing and it is difficult to manufacture a vehicle body panel.

Further, in the latter case in which the sheet is sealed using the step between the seal frame and the lip frame, the adhesion of the sheet is inferior when a laminate having a height exceeding this step is formed. Similar to the former, there are disadvantages in the production of large panels for refrigerated vehicles and campers.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has as its object to provide a vehicle body panel having excellent heat insulating properties and to manufacture a large panel such as a vehicle body panel. Panel manufacturing device.

[0010]

In order to achieve the above-mentioned object, a first means of the present invention is to provide a frame 1 in which a peripheral frame 1A and a reinforcing frame 1B inside the peripheral frame 1A are assembled by a metal square tube. A panel core material 3 is formed by fitting the heat insulating plate material 2 therein, and an outer wall material 4 made of an aluminum plate material or an FRP plate material is adhered to the surface of the panel core material 3 by an adhesive and a vacuum compression bonding. An inner wall material 5 made of an FRP plate material, an aluminum plate material, or a veneer plate material is bonded to an adhesive and a vacuum on the back surface.

The frame 1 of the second means uses an aluminum square tubular member and the heat insulating plate 2 uses a foamed resin plate.

The third means is an apparatus for vacuum-pressing a plate P having a laminated structure, comprising a base 10 on which the plate P is mounted, an upper surface P1 of the mounted plate P and an upper surface 10A of the base. Sheet 20, which covers the base, and the vacuum sheet 20 and the base upper surface 10
And a vacuum pump 30 for forcibly discharging air between the base A and a plurality of clamps which are provided around a base 10 and which have a rectangular tube-shaped crimping rod 11 and which press the outer surface of the crimping rod 11. In 12, the peripheral edge of the vacuum sheet 20 is fixed to the pressure rods 11, and a suction port 11 </ b> A is provided on the side surface of each crimping rod 11.
The purpose is to forcibly discharge the air between 0 A and maintain the sealed state of the vacuum sheet 20 at the upper edge of the crimping rod 11.

The fourth means is to provide a suction port 11B on the upper surface of the pressure rod 11, and to suck the vacuum sheet 20 on the upper surface of the pressure rod 11 to the pressure rod 11 with the suction port 11B. Means.

According to the vehicle body panel of the present invention, the laminated plate P bonded to the adhesive by the vacuum pressure has an extremely strong bonding force because the adhesive reaches and adheres to the minute deep portion of the bonding surface. .

Further, in the manufacturing apparatus of the present invention, since the upper edge of the crimping rod 11 is in close contact with the vacuum sheet 20 and the vacuum state of the vacuum sheet 20 is maintained, regardless of the thickness of the laminated plate P, it is simple and reliable. Vacuum bonding can be performed.

[0016]

Embodiments of the present invention will be described below in detail with reference to the drawings. In the body panel of the present invention, the outer wall material 4 is adhered to the surface of the panel core material 3 with an adhesive by vacuum pressing.
Further, a laminated structure in which the inner wall material 5 is bonded to the back surface of the panel core material 3 with an adhesive by vacuum pressure is formed (see FIGS. 5 and 6).

The panel core material 3 includes a heat insulating plate material 2 inside the frame 1.
It is preferable that the frame 1 is made of an aluminum square tube material and the heat insulating plate 2 is made of a foamed resin plate.

Then, an outer wall material 4 made of an aluminum plate material or an FRP plate material is pressure-bonded to the surface of the panel core material 3 via an adhesive. On the other hand, the inner wall material 5 made of an FRP plate material, an aluminum plate material or a veneer plate material is vacuum-pressed in a vacuum state on the back surface of the panel core material via an adhesive to form a laminated plate body P (see FIG. 5). The laminated plate body P shown in FIG.
Has a three-layer structure consisting of a panel core material 3, an outer wall material 4, and an inner wall material 5, but if necessary, a plywood material 6 is bonded between the outer wall material 4 and the panel core material 3 to increase the strength. You may. When the veneer plate material 6 is used for the inner wall material 5, it is also possible to decorate the inner wall material 5 by attaching an interior cloth 5A (see FIG. 7).

FIG. 1 shows a manufacturing process of a vehicle body panel according to the present invention. That is, in FIG. 1A, a frame 1 is formed by assembling a peripheral frame 1A and a reinforcing frame 1B inside the peripheral frame 1A with a metal square tubular body. The connecting means of the peripheral frame 1A and the reinforcing frame 1B includes welding means, screwing means, and the like.
It is appropriately selected according to the material of the metal square cylinder. At this time, when an aluminum square tube material is used, welding means is appropriate. FIG. 2B shows a heat insulating plate 2 inside the frame 1.
Are fitted to form the panel core material 3. The heat insulating plate 2 is preferably a foamed resin plate, but may be another heat insulating material. The thickness of the heat insulating plate 2 is formed to be substantially the same as the thickness of the metal square cylinder of the frame 1. At this time, when an opening 3A such as a window or an entrance is provided in a part of the laminated plate P, the panel core material 3
The heat insulating plate 2 is not fitted into the opening 3A, but a filler 2A having the same thickness as the frame 1 is inserted into this opening to prevent the inner wall 5 from sinking during vacuum bonding. deep. FIG. 3C shows a state in which the outer wall material 4, the panel core material 3, and the inner wall material 5 are sequentially stacked on the base upper surface 10A of the base 10 from below. An adhesive is applied to each polymerized surface. FIG. 4D shows a state in which vacuum bonding is performed by the manufacturing apparatus of the present invention, in which the upper surface of the laminated plate P is covered with a vacuum sheet 20. As shown in FIG. 4E, the vacuum sheet 20 and the base upper surface 10A are
And a pressure is applied to the laminated plate body P to adhere the same.

The manufacturing apparatus used in the present invention has a rectangular tube-shaped crimping rod 11 provided around a base 10 and a plurality of clamps 12 for crimping the outer surface of the crimping rod 11 to form a vacuum sheet. The peripheral edge of 20 is fixed to the crimping rod 11 (see FIGS. 2 and 3). In this state, when a vacuum is applied between the vacuum sheet 20 and the base upper surface 10A, the sealed state of the vacuum sheet 20 is maintained at the upper edge of the crimping rod 11 regardless of the height of the laminated plate P. (See FIG. 4).

A suction port 11 is provided on the side surface of each crimping rod 11.
A is provided, and the air between the vacuum sheet 20 and the base upper surface 10A is forcibly discharged from the suction port 11A. The hollow portion of each crimping rod 11 is in communication with each other.
It is configured so that air is discharged from 1A. The suction port 11B is provided on the upper surface of the pressure rod 11, and the vacuum sheet 20 on the upper surface of the pressure rod 11 is suctioned to the pressure rod 11 by the suction port 11B. The suction port 11B is effective in increasing the adhesion between the vacuum sheet 20 and the pressure rod 11, and has an effect of promoting the discharge of air at the beginning of suction to assist the suction port 11A.

A plurality of clamps 12 for pressing the outer surface of the pressure rod 11 are provided on the outer surface of the base 10 so as to be swingable. In order to effectively fix the peripheral edge of the vacuum sheet 20 to the pressure rod 11, in the illustrated example, the pressure rod 1 having a rectangular cross section that is pressed against the outer surface of the pressure rod 11 and the base upper surface 10A.
2A is provided at the tip of the clamp 12, and the vacuum sheet 20 is fixed to the crimping rod 11 and the base upper surface 10A by crimping (see FIG. 4).

[0023]

According to the present invention, the above-mentioned configuration achieves the original object. That is, according to the first aspect, the outer wall member 4 and the inner wall member 5 are firmly joined to both surfaces of the panel core member 3, and the respective plate members are integrated. As a result,
It is possible to provide a vehicle body panel excellent in heat insulation and suitable for a refrigerator car, a camper, and the like.

According to the second aspect, the vehicle body panel can be reduced in weight and increased in strength.

According to the third aspect, the sealing state of the vacuum sheet 20 can be easily and reliably maintained by the pressure rod 11. Therefore, unlike a device for forming a laminated panel using a conventional vacuum sheet, a device for heat fusion or a seal frame or a lip frame is not required, and an extremely strong pressing effect is obtained. Irrespective of the thickness of the laminated body P, it is possible to easily and surely perform vacuum pressure bonding. As a result, it is possible to provide an apparatus suitable for manufacturing various large-sized panels, such as a ship and an aircraft, as well as a vehicle body panel.

Further, according to the present invention, it is possible to improve the adhesion performance between the vacuum sheet 20 and the pressure rod 11, and the conventional inconvenience of poor adhesion due to the height of the laminate is eliminated. Moreover, the suction port 11B is connected to the vacuum sheet 20.
Until the air is adsorbed on the suction port 11B, the air is also discharged from the suction port 11B. Therefore, the suction port 11B can assist the suction port 11A, thereby shortening the air discharge time.

As described above, according to the present invention, it is possible to provide a body panel for a vehicle having excellent heat insulating properties suitable for a refrigerator car, a camper, and the like, and a panel manufacturing apparatus suitable for manufacturing various large panels. And various other effects can be achieved.

[Brief description of the drawings]

FIG. 1 is a process chart showing a manufacturing process of the panel of the present invention.

FIG. 2 is a perspective view showing the manufacturing apparatus of the present invention.

FIG. 3 is a sectional view showing a main part of the manufacturing apparatus of the present invention.

FIG. 4 is an enlarged sectional view of a main part showing a crimping rod of the manufacturing apparatus of the present invention.

FIG. 5 is an exploded perspective view showing one embodiment of the vehicle body panel of the present invention.

FIG. 6 is a sectional view showing one embodiment of the vehicle body panel of the present invention.

FIG. 7 is a sectional view of a main part showing another embodiment of the vehicle body panel of the present invention.

[Explanation of symbols]

 P Laminated plate P1 Upper surface 1 Frame 1A Peripheral frame 1B Reinforcement frame 2 Insulating plate 2A Filler 3 Panel core 3A Opening 4 Outer wall 5 Inner wall 5A Interior cloth 6 Veneer plate 10 Base 10A Base upper surface 11 Crimping rod 11A suction port 11B suction port 12 clamp 12A pressing rod 20 vacuum sheet 30 vacuum pump

Claims (4)

[Claims] 1. A panel core is formed by fitting a heat insulating plate inside a frame in which a peripheral frame and a reinforcing frame inside the peripheral frame are assembled with a metal square tubular body, and a surface of the panel core is formed of aluminum. An outer wall material made of a plate material or an FRP plate material is adhered to the adhesive by vacuum bonding, and an inner wall material made of an FRP plate material, an aluminum plate material, or a plywood plate is bonded to the back surface of the panel core material by an adhesive and vacuum compression bonding. Vehicle body panel. 2. The frame body is made of an aluminum prismatic body, and the heat insulating board is made of a foamed resin board.
A vehicle body panel as described. 3. An apparatus for vacuum-pressing a plate body having a laminated structure, comprising: a base on which the plate body is mounted; a vacuum sheet covering the upper surface of the mounted plate body and the upper surface of the base; A vacuum pump for forcibly discharging air between the sheet and the upper surface of the base, a plurality of clamps for forming a rectangular tubular crimping rod around the base, and pressing the outer surface of the crimping rod. Then, the peripheral edge of the vacuum sheet is crimped and fixed to the crimping rods, a suction port is provided on the side of the glue of each crimping rod, and the air between the vacuum sheet and the upper surface of the base is forcibly discharged from these suction ports. A panel manufacturing apparatus characterized in that the vacuum sheet is kept sealed at the upper edge of the crimping rod. 4. The panel manufacturing apparatus according to claim 3, wherein a suction port is provided on an upper surface of the pressure rod, and the vacuum sheet on the upper surface of the pressure rod is suctioned to the pressure rod by the suction port.