JP2000127273A - Sandwich panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To permit the contriving of improvement of prevention of deformation as well as the yield of products and contrive the improvement of a strength by discharging expanded air upon forming quickly to the outside of a panel. SOLUTION: A sandwich panel is equipped with a pair of surface plates 1, core members 3, interposed between the surface plates 1, and a frame member 2, interposed at least at the side parts between the intermediate part and the side parts of both surface plates 1. In this case, projected parts 4, contacted with the core members 3 respectively, are formed at the terminal parts of both surface plates 1 in the side surface of the frame member 2 and one or a plurality of sites at the intermediate part between both terminal parts while vent passages 5, communicated with the outside of the panel, are formed between the projected parts 4. According to this method, expanded air upon forming is discharged quickly to the outside of the panel to permit the contriving of prevention of deformation and the improvement of the yield of products while the improvement of the strength of the panel can also be contrived.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sandwich panel, and more particularly, to a sandwich panel, a core member interposed between the pair of surface panels, and an intermediate portion or a side portion between the two surface panels. And a frame material interposed between at least sides.

[0002]

2. Description of the Related Art In general, sandwich panels are widely used for outer wall materials, roof materials, interior materials and the like. The sandwich panel is formed of a pair of rectangular aluminum alloy surface plates a as shown in FIG. 23, and an aluminum alloy extruded member interposed between peripheral portions of these surface plates a. There is known a structure in which a frame material b and a hollow honeycomb core material c interposed in a space formed by both surface plates a and the frame material b are integrally formed by brazing.

[0003] In order to form the sandwich panel constructed as described above, a frame material b is disposed around one surface plate a, and a honeycomb core material c is arranged on the upper surface of the surface plate a. , The other surface plate a is placed on the upper surface,
Secure with the formwork. Then, the pair of fixed surface plates a, the frame material b, and the honeycomb core material c in a fixed state are inserted into a heat treatment furnace, heat-treated at an appropriate temperature (for example, 610 to 620 ° C.), and integrally formed by brazing. I do. At this time, since the air in the hollow portion of the honeycomb core material c may expand and deform, the honeycomb core material c is provided with an air vent hole d. Further, in order to discharge the air in the honeycomb core member c to the outside, an air vent passage e communicating with the outside is provided on a side wall of the frame member b which contacts the honeycomb core member c. Further, ventilation holes f and g are formed in the side wall of the frame member b so that the air that expands during the heat treatment is discharged to the outside. Note that the air vent passage e is formed by a raised portion j protruding from the end of the frame material b on the side of the surface plate a toward the core material c.

As described above, by providing the air vent passage e and the ventilation holes f and g on the side surface of the frame member b, it is possible to prevent an increase in the internal pressure at the time of the heat treatment, thereby improving the productivity and the product yield. Is being planned.

[0005]

However, in this type of conventional sandwich panel, as shown in FIG. 23, the sandwich panel is fixed to a mounting member, such as a fastener m, with bolts h and nuts i on a frame member b. In this case, an external force F (shear load) such as a wind load is received as shown by an arrow in FIG. As described above, when the shear load F is received, the shear stress concentrates on the joint end k of the honeycomb core material c and the frame material b, and the stress concentration causes the support as compared with the case where the entire surface is joined without providing the air vent passage e. There was a problem that the strength of the part was reduced and the panel was deformed.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and is a sandwich in which expansion air during molding is quickly discharged to the outside to prevent deformation and improve product yield, and to improve strength. It is intended to provide a panel.

[0007]

In order to achieve the above object, a sandwich panel according to the present invention is configured as follows.

[0010] (1) The invention according to claim 1 is a method of manufacturing a semiconductor device, comprising: a pair of surface plates, a core material interposed between the surface plates, and at least a middle portion or a side portion of the both surface plates. In a sandwich panel having an interposed frame material,
At one or a plurality of intermediate portions between the both end portions on the side surfaces of the frame material, ridges that contact the core material are formed at one or a plurality of portions. And an air vent passage communicating with the air passage is formed.

With this configuration, the expanded air generated during the heat treatment can be discharged to the outside through the air vent passage. In addition, since the raised portions formed at one or more of the both ends and the intermediate portion on the side surface of the frame material come into contact with the core material, the contact area increases, and the concentration of shear stress due to the load applied to the panel is dispersed ( (Relaxation), so that the strength of the panel itself can be improved.

(2) According to the second aspect of the present invention, a pair of surface plates, a core material interposed between these surface plates, and at least a middle portion or a side portion between the two side surface plates. In a sandwich panel having an interposed frame material,
A raised portion that is in contact with the core material is formed at an intermediate portion between the side portions of the frame material, and an air vent passage communicating with the outside is formed on both sides of the raised portion.

[0011] With this configuration, the expanded air generated during the heat treatment can be discharged to the outside through the air vent passage. In addition, since the raised portion formed in the middle portion of the side surface of the frame material comes into contact with the core material, the concentration of shear stress due to the load applied to the panel can be dispersed (relaxed). Therefore, the strength of the panel itself can be improved.

(3) The invention according to claim 3 is the invention in which a pair of surface plates, a core material interposed between the surface plates, and at least a middle portion or a side portion between the two surface plates. In a sandwich panel having an interposed frame material,
A ridge that contacts the core material is formed at an end of each of the side surfaces of the frame material on the side of the front plate, and a groove that communicates with the outside is formed between the ridges. And a plurality of pipe members that are in contact with the core material and the frame material are arranged in the space defined by

With this configuration, the expanded air generated during the heat treatment can be discharged to the outside through the gap and the concave groove of the pipe member. Further, a plurality of pipe members arranged in a space formed by the concave groove and the core material come into contact with the core material, thereby increasing the contact area,
Since the concentration of the shear stress due to the load applied to the panel can be dispersed (relaxed), the strength of the panel itself can be improved.

In this case, when the pipe member is formed of a long material, a vent hole is formed in the pipe member so that the vent hole can communicate with the concave groove, and the inflated air is discharged to the outside. It can be discharged (claim 4).

(4) According to a fifth aspect of the present invention, a pair of surface plates, a core material interposed between the surface plates, and at least a middle portion or a side portion between the two side surface plates. In a sandwich panel having an interposed frame material,
A ridge that contacts the core material is formed at an end of each of the side surfaces of the frame material on the side of the front plate, and a groove that communicates with the outside is formed between the ridges. And a sheet member which is bent in a wave shape so as to come into contact with the core material and the frame material in the space defined by the above.

With this configuration, the expanded air generated during the heat treatment can be discharged to the outside through the gap and the groove of the sheet member. Further, the sheet member disposed in the space formed by the concave groove and the core material comes into contact with the core material, thereby increasing the contact area and dispersing (relaxing) the concentration of shear stress due to the load applied to the panel. ), The strength of the panel itself can be improved.

In this case, when the sheet member is formed of a through material, a ventilation hole is formed in the sheet member, so that the ventilation hole can communicate with the concave groove, and the inflated air is discharged to the outside. It can be discharged (claim 6).

(5) The invention according to claim 7 is that the pair of surface plates, the core material interposed between the surface plates, and at least the intermediate portion or the side portion between the two surface plates. In a sandwich panel having an interposed frame material,
At the ends of the side surfaces of the frame material on both the side plate side, while forming a raised portion that comes into contact with the core material,
Forming an air vent passage communicating with the outside between the raised portions,
A reinforcing member that comes into contact with the frame material and the core material is interposed at an appropriate position in the air vent passage.

With this configuration, the expanded air generated during the heat treatment can be discharged to the outside through the air vent passage. In addition, the protrusions formed at both ends on the side surface of the frame material are in contact with the core material, so that the contact area can be increased. Further, by contacting the reinforcing member with the frame material and the core material, The contact area can be increased, and the concentration of shear stress due to the load applied to the panel can be dispersed (relaxed). Therefore, in addition to the improvement of the strength of the panel itself, the attachment of the mounting member to the outside of the panel Can be strengthened.

(6) The invention according to claim 8 is characterized in that: a pair of surface plates, a core material interposed between these surface plates, and at least a middle portion or a side portion between the both surface plates. A sandwich panel having an interposed frame member, wherein a raised portion that contacts the core material is formed at an intermediate portion between the side portions of the frame material, and an air vent passage communicating with the outside on both sides of the raised portion. A sandwich panel, comprising: a reinforcing member that contacts the frame material and the core material at an appropriate position in the air vent passage.

With this configuration, the expanded air generated during the heat treatment can be discharged to the outside through the air vent passage. In addition, by contacting the raised portion formed in the intermediate portion on the side surface of the frame material with the core material, the contact area can be increased, and further, by contacting the reinforcing member with the frame material and the core material, Since the contact area can be partially increased and the concentration of the shear stress due to the load applied to the panel can be dispersed (relaxed), the strength of the panel itself can be improved, and the mounting members for the outside of the panel can be improved. The mounting can be strengthened.

(7) The invention according to claim 9 is the sandwich panel according to claim 7 or 8, wherein the reinforcing member is any one of a plate member, a pipe member, and a sheet member bent in a wave shape. It is characterized by the following.

With such a configuration, the reinforcing member can be selected from any of a plate-shaped member, a pipe member, and a sheet member bent in a wavy shape, and various types of sandwich panels can be easily formed. Can be formed.

(8) The invention according to claim 10 is the invention according to claim 7
10. The sandwich panel according to any one of items 9 to 9, wherein a ventilation hole is formed in the reinforcing member.

With this configuration, a part of the expanded air can be discharged to the outside through the ventilation hole and the air vent passage. Therefore, it is possible to prevent the deformation of the panel due to the increase in the internal pressure.

(9) The invention according to claim 11 is the invention according to claim 7
11. The sandwich panel according to any one of items 1 to 10, wherein the surface plate, the core material, the frame material, and the reinforcing member are formed of an aluminum member, and at least a surface of the reinforcing member is coated with a brazing material. It is characterized by.

[0027] With this configuration, the mounting of the reinforcing member can be made easy and strong, and a lightweight and highly corrosion-resistant sandwich panel can be easily produced.

(10) According to a twelfth aspect of the present invention, in the sandwich panel according to any one of the first to eleventh aspects, the frame member is formed of a hollow member, and a ventilation hole is formed on a side surface of the frame member. Characterized by being drilled.

With this configuration, a part of the expanded air flowing through the air vent passage or the concave groove can be discharged to the outside through the ventilation hole and the hollow portion of the frame material. Therefore, the expansion air can be discharged to the outside more quickly, and the deformation of the panel due to the increase in the internal pressure can be reliably prevented.

[0030]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. First Embodiment FIG. 1 is a sectional perspective view of a first embodiment of the sandwich panel of the present invention, and FIG. 2 is an enlarged sectional view of a main part thereof.

The sandwich panel (hereinafter simply referred to as a panel) includes a pair of surface plates 1, 1 formed in, for example, a rectangular shape, and a frame material 2 interposed in a peripheral portion between the surface plates 1, 1. A main part is constituted by a hollow core material 3 interposed in a space formed by both the face plates 1 and 1 and the frame material 2.

The surface plate 1 is formed of an aluminum alloy plate. The frame member 2 is formed of a substantially hollow rectangular extruded shape member made of an aluminum alloy. A substantially trapezoidal protruding portion 4 is formed at an end portion and at an intermediate portion between the two end portions, each of the protruding portion 4 being in contact with the core material 3. An air vent passage 5 communicating with the outside is provided between the protruding portions 4. Are formed. Also, frame material 2
An air hole 6 communicating with the inside of the hollow portion 2a of the frame member 2 is formed at an appropriate position of the air vent passage 5 on the inner surface of the member, and a vent hole 7 communicating with the inside of the hollow portion 2a is formed on the outer surface. ing.

On the other hand, the core member 3 is formed in a cylindrical shape obtained by rolling a strip made of, for example, an aluminum alloy, and an air vent hole 8 through which adjacent core members 3 communicate with each other is provided on a side surface of the core member 3. Have been.

In this case, at least the core material 3 of the surface plate 1, the frame material 2 and the core material 3 is formed of a brazing sheet having an outer surface clad with a brazing material. It is also possible to form any of the surface plate 1, the frame material 2 and the core material 3 with an aluminum clad material using a brazing material on the surface thereof, or alternatively, the surface plate 1, the frame material 2 and the core material 3 may be used. Instead of using an aluminum clad material for any of the three, a brazing material may be interposed between them, and the brazing material may be melted and brazed during processing. In this case, a non-corrosive flux such as KF
+ AlF3 or KAlF4 + K3AlF6 + K2AlF5
-It is more desirable to join the surface plate 1, the frame material 2, and the core material 3 using a flux such as H2O.

In order to form the panel configured as described above, first, a frame member 2 is arranged on one side of one face plate 1,
A plurality of core members 3 are arranged in a space formed by the surface plate 1 and the frame member 2 in a state where the plurality of core members 3 are brought into contact with each other to form an air vent passage 5. Next, the other surface plate 1 is put on the upper surfaces of the frame member 2 and the core member 3 and then fixed by a mold (not shown).
At this time, an air vent space is formed between the core members 3 and between the core member 3 and the frame member 2. In such a state, it is put into a heat treatment furnace (not shown)
It is heated at a temperature of 20 ° C. and is integrally formed by brazing. At the time of this heat treatment, the air that expands in the hollow portion of the core material 3 flows into the air vent passage 5 of the frame material 2 through the air vent hole 8 provided in the core material 3 and is discharged to the outside. The air is discharged to the outside through the two ventilation holes 6 and 7 and the hollow portion 2a.

Therefore, the air that expands into the core material 3 due to the heat treatment at the time of brazing can be quickly discharged to the outside, and the internal pressure can be prevented from increasing to prevent the panel from being deformed.

Also, the contact area is increased by contact of the raised portions 4 at both ends and the intermediate portion provided on the side surfaces of the frame member 2 with the core member 3, so that the shear stress due to the load applied to the panel during use is reduced. The concentration can be dispersed (relaxed), and the strength of the panel itself can be improved.

Second Embodiment FIG. 3 is an enlarged sectional view of a main part of a sandwich panel according to a second embodiment of the present invention.

The second embodiment is a case where the strength of the panel is further improved. That is, the raised portions 4 that are in contact with the core material 3 are respectively formed at the end portions of the inner surface of the frame material 2 on the side of the both surface plates 1 and at a plurality of, for example, two portions at intermediate portions between the both end portions. In this case, an air vent passage 5 communicating with the outside is formed between the raised portions 4.

The contact area between the raised portion 4 and the core material 3 in the second embodiment is the same as the contact area between the raised portion 4 and the core material 3 in the first embodiment.
In the second embodiment, other parts are the same as those in the first embodiment, and thus the same parts are denoted by the same reference numerals and description thereof will be omitted.

As described above, the protruding portions which come into contact with the core material 3 are respectively provided at the end portions of the inner surface of the frame member 2 on the side of the both surface plates 1 and at a plurality of, for example, two portions at the intermediate portions between the both end portions. 4 and the formation of an air vent passage 5 communicating with the outside between the raised portions 4, thereby dispersing the contact portion between the frame material 2 and the core material 3 as compared with the case of the first embodiment. Therefore, the concentration of shear stress due to the load applied to the panel can be further reduced, and the strength of the panel can be further improved. Also, during the heat treatment,
The air that expands in the hollow portion of the core material 3 flows into the air release passage 5 of the frame material 2 through the air release hole 8 provided in the core material 3 and is discharged to the outside. 7
And since it is discharged to the outside through the hollow portion 2a, the deformation of the panel can be prevented.

Third Embodiment FIG. 4 is an enlarged sectional view showing a main part of a sandwich panel according to a third embodiment of the present invention.

In the third embodiment, the strength of the panel is further improved. That is, a raised portion 4 that comes into contact with the core material 3 is provided at an intermediate portion on the inner side surface of the frame material 2.
And air vent passages 5 communicating with the outside are formed on both sides of the raised portion 4.

The contact area between the raised portion 4 and the core material 3 in the third embodiment is the same as the contact area between the raised portion 4 and the core material 3 in the first embodiment.
In the third embodiment, other parts are the same as those in the first embodiment, and thus the same parts are denoted by the same reference numerals and description thereof will be omitted.

As described above, the raised portion 4 that is in contact with the core material 3 is formed in the middle portion of the inner surface of the frame member 2, and the air vent passage 5 that communicates with the outside is formed on both sides of the raised portion 4.
Is formed, the raised portion 4 formed in the middle part of the side surface of the frame member 2 comes into contact with the core member 3, so that the concentration of shear stress due to the load applied to the panel during use can be dispersed (relaxed). Thus, the strength of the panel itself can be improved. At the time of the heat treatment, the air expanding in the hollow portion of the core material 3 flows into the air vent passage 5 of the frame material 2 through the air vent hole 8 provided in the core material 3 and is discharged to the outside. Since the air is discharged to the outside through the ventilation holes 6 and 7 and the hollow portion 2a, deformation of the panel can be prevented.

Fourth Embodiment FIG. 5 is an enlarged sectional view of a main part of a sandwich panel according to a fourth embodiment of the present invention.

In the fourth embodiment, a pipe member 9 is interposed between the frame member 2 and the core member 3 to improve the strength of the panel. That is, at the end of the side surface of the frame member 2 on the side of the both surface plates 1, a raised portion 4 that comes into contact with the core material 3 is formed, and a concave groove 10 that communicates with the outside is formed between the raised portions 4. A plurality of pipe members 9 that are in contact with the core material 3 and the frame material 2 are arranged in a space formed by the concave groove 10 and the core material 3, and the surface plate 1, the frame material 2, the core material 3, and the pipe This is a case where the member 9 is integrally brazed.

In this case, the pipe member 9 is formed of a circular pipe made of an aluminum alloy. If both the frame member 2 and the core member 3 are not formed of an aluminum clad material, as shown in FIG. And aluminum base material 9a
Is formed by a clad pipe in which a brazing material 9b is coated (cladded) on the surface of the substrate.

The pipe member 9 may be a long material having the same length as the frame material 2 along the frame material 2, or a piece-like material may be formed on a straight line at appropriate intervals. Any one of the pipe members 9 may be provided. However, when the pipe member 9 is formed of a long material, it is necessary to form the ventilation hole 11 at an appropriate position of the pipe member 9 as shown in FIG. is there.

Vent holes 6 and 7 are formed in the frame member 2 on the side of the concave groove 10 and on the outer surface, respectively, so that expanded air generated in the core material 3 during the heat treatment is removed from the concave groove 10 to the outside. And the air is discharged to the outside through the ventilation holes 6, 7 and the hollow portion 2a of the frame material 2.

In the fourth embodiment, other parts are the same as those in the first embodiment, and the same parts are denoted by the same reference numerals and description thereof will be omitted.

In order to form a panel configured as described above, first, a frame member 2 is disposed on a side of one face plate 1 and
A plurality of pipe members 9 are arranged in a row in the concave groove 10 of the frame member 2. Note that the frame member 2 may be provided in a state where a plurality of pipe members 9 are arranged in advance in the concave grooves 10 of the frame member 2. next,
A plurality of core members 3 are arranged in a space formed by the one surface plate 1 and the frame member 2 in a state where the plurality of core members 3 are brought into contact with each other to form an air vent passage 5. Then, after the other surface plate 1 is put on the upper surfaces of the frame member 2 and the core member 3, it is fixed by a mold (not shown). At this time, an air vent space is formed between the core members 3 and between the core member 3, the pipe member 9 and the frame member 2.
In such a state, it is placed in a heat treatment furnace (not shown) (not shown) and heated at a temperature of, for example, 610 to 620 ° C.
Integrally molded by brazing. At the time of this heat treatment, the air that expands in the hollow portion of the core material 3 is recessed in the frame material 2 through the air vent hole 8 provided in the core material 3, the gap of the pipe member 9, or the ventilation hole 11 of the pipe member 9. Flowing into the groove 10,
In addition to being discharged to the outside, the gas is discharged to the outside through the ventilation holes 6 and 7 formed in the frame member 2 and the hollow portion 2a.

Therefore, the air that expands into the core material 3 due to the heat treatment during brazing can be quickly discharged to the outside, and the internal pressure can be prevented from increasing, thereby preventing the panel from being deformed.

The groove 10 provided on the side surface of the frame 2
A plurality of pipe members 9 arranged in a row contact the core member 3 to increase the contact area, so that the concentration of shear stress due to the load applied to the panel during use can be dispersed (relaxed), and The strength of itself can be improved.

In the above description, the case where the pipe member 9 is formed of a circular pipe has been described.
A pipe member 9A having a rectangular cross section as shown in (a) or a pipe member 9 having a trapezoidal cross section as shown in FIG.
B may be used.
By using a or the trapezoidal pipe member 9B, the adhesion between the pipe members 9A and 9B, the frame member 2 and the core member 3 can be improved. In addition to the pipe members 9, 9A and 9B having these shapes, it is also possible to form the pipe members with, for example, triangular or hexagonal pipes.

Fifth Embodiment FIG. 9 is an enlarged sectional view of a main part of a sandwich panel according to a fifth embodiment of the present invention.

In the fifth embodiment, a corrugated sheet member 12 is interposed between the frame member 2 and the core member 3 to improve the strength of the panel. That is, at the end of the side surface of the frame member 2 on the side of the both surface plates 1, a raised portion 4 that comes into contact with the core material 3 is formed, and a concave groove 10 that communicates with the outside is formed between the raised portions 4. In the space formed by the concave groove 10 and the core member 3, the sheet member 1 is bent into a wave shape such as a quadratic curve so as to contact the core member 3 and the frame member 2.
2 is provided, and the surface plate 1, the frame material 2, the core material 3, and the corrugated sheet member 12 are integrally brazed.

In this case, the sheet member 12 is formed of a corrugated plate made of an aluminum alloy. If both the frame member 2 and the core member 3 are not formed of an aluminum clad material, as shown in FIG. In addition, aluminum base material 12
It is formed of a brazing sheet in which a brazing material 12b is coated (cladded) on the surface of a.

Further, the sheet member 12 may be a threaded material having the same length as the frame material 2 along the frame material 2.
Alternatively, any of those in which piece-shaped objects are arranged on a straight line at appropriate intervals may be used.
When formed with a through material, as shown in FIG.
It is necessary to form a ventilation hole 13 at an appropriate position of the sheet member 12.

As in the fourth embodiment, ventilation holes 6 and 7 are formed on the side of the concave groove 10 and the outer surface of the frame member 2, respectively. The generated inflation air is discharged to the outside from the groove 10 and
It is configured to be discharged outside through the ventilation holes 6 and 7 and the hollow portion 2a of the frame member 2.

In the fifth embodiment, the other parts are the same as those in the first embodiment, and the same parts are denoted by the same reference numerals and description thereof will be omitted.

In order to form a panel configured as described above, first, a frame member 2 is disposed on a side of one face plate 1,
A corrugated sheet member 12 is provided in the concave groove 10 of the frame member 2. Note that the sheet member 1 is previously set in the concave groove 10 of the frame member 2.
2, the frame member 2 may be provided. next,
A plurality of core members 3 are arranged in a space formed by the one surface plate 1 and the frame member 2 in a state where the plurality of core members 3 are brought into contact with each other to form an air vent passage 5. Then, after the other surface plate 1 is put on the upper surfaces of the frame member 2 and the core member 3, it is fixed by a mold (not shown). At this time, an air vent space is formed between the core members 3 and between the core member 3, the sheet member 12, and the frame member 2. In this state, it is placed in a heat treatment furnace (not shown) (not shown), heated at a temperature of, for example, 610 to 620 ° C., and integrally formed by brazing. At the time of this heat treatment, the air that expands in the hollow portion of the core material 3 is recessed in the frame material 2 through the air vent hole 8 provided in the core material 3, the gap between the sheet members 12, or the ventilation hole 13 of the sheet member 12. Groove 1
0, and is discharged to the outside as well as to the outside through the ventilation holes 6, 7 and the hollow portion 2a of the frame material 2.

Therefore, the air that expands into the core material 3 due to the heat treatment at the time of brazing can be rapidly discharged to the outside, and the internal pressure can be prevented from increasing to prevent the panel from being deformed.

The groove 10 provided on the side surface of the frame 2
The contact area of the corrugated sheet member 12 disposed inside the core member 3 increases by contact, so that the concentration of shear stress due to the load applied to the panel during use can be dispersed (relaxed), The strength of the panel itself can be improved.

In the above description, the case where the sheet member 12 is formed in a quadratic curve is described.
A sheet member having a waveform other than the quadratic curve, for example, a wave shape such as a triangle and a trapezoid may be used.

Sixth Embodiment In the above embodiment, the case where the frame material 2 is interposed on the side of the face plate 1 has been described. The present invention can be applied to a case where they are also used. That is, as shown in FIG. 12, the reinforcing frame 2A interposed in the intermediate portion of the surface plate 1 is formed of an approximately hollow rectangular extruded shape made of an aluminum alloy, and the core of the frame 2A is formed. In the same manner as in the first embodiment, substantially trapezoidal shapes that contact the core material 3 are provided at both ends of the both surface plates 1 and at an intermediate portion between the both ends, as in the first embodiment. May be formed, and an air vent passage 5 communicating with the outside may be formed between the raised portions 4.
In addition, a ventilation hole 6 communicating with the inside of the hollow portion 2a of the frame member 2 is formed at an appropriate position of the air vent passage 5 on the inner side surface of the frame member 2.

With this configuration, the air that expands in the hollow portion of the core material 3 during the heating process is
The air can be discharged to the outside through the air vent passage 5 of the frame member 2 through the air vent hole 8 provided in the frame member 2A, and can be discharged to the outside through the vent holes 6, 7 and the hollow portion 2a of the frame member 2A.

In the above description, the structure of the air vent passage 5 and the like formed on both side surfaces of the frame member 2A is described as in the first embodiment. However, the structure of the air vent passage 5 and the like is as follows. It is needless to say that the present invention is not limited to the first embodiment, and the above-described second to fifth embodiments may be applied.

Seventh Embodiment FIG. 13 is an enlarged sectional view showing a main part of a sandwich panel according to a seventh embodiment of the present invention.

The seventh embodiment is a case where the periphery of the mounting member in the panel itself is further strengthened in consideration of the mounting of the mounting member to the panel. That is, FIG. 13 and FIG.
As shown in FIG. 5, in the sandwich panel in which the main part is configured in the same manner as in the first embodiment, the inner surface of the frame member 2, that is, the side surface in contact with the core member 3, A raised portion 4A is formed in contact with the core member 3, and an air vent passage 5 communicating with the outside is formed between the raised portions 4A, and an appropriate position in the air vent passage 5, that is, a mounting position of the mounting member 30 is determined. This is a case where a reinforcing member 20 that comes into contact with the frame member 2 and the core member 3 is interposed in a portion including the reinforcing member 20.

In this case, the reinforcing member 20 is formed of a rectangular plate made of aluminum alloy. If both the frame 2 and the core 3 are not formed of aluminum clad, the reinforcing member 20 is shown in FIG. As shown, aluminum base material 2
It is formed of a brazing sheet in which a brazing material 20b is coated (cladded) on the surface of Oa.

In the seventh embodiment, the other parts are the same as those in the first embodiment, and the same parts are denoted by the same reference numerals and description thereof will be omitted.

In order to form a panel configured as described above, first, a frame member 2 is disposed on a side of one face plate 1,
The reinforcing member 20 is disposed at an appropriate position in the air vent passage 5 of the frame member 2, that is, at a portion including the mounting position of the mounting member 30. The frame member 2 may be provided in a state where the reinforcing member 20 is provided in the air vent passage 5 of the frame member 2 in advance. Next, a plurality of core members 3 are arranged in contact with each other in a space formed by the one surface plate 1 and the frame member 2. Then, after the other surface plate 1 is put on the upper surfaces of the frame member 2 and the core member 3, it is fixed by a mold (not shown). At this time, an air vent space is formed between the core members 3 and between the core member 3, the reinforcing member 20, and the frame member 2. In such a state, it is put into a heat treatment furnace (not shown)
It is heated at a temperature of 20 ° C. and is integrally formed by brazing. At the time of this heat treatment, the air that expands in the hollow portion of the core material 3 flows into the air vent passage 5 through the air vent hole 81 provided in the core material 3 and is discharged to the outside.
The air is discharged to the outside through the ventilation holes 6 and 7 formed in the frame member 2 and the hollow portion 2a.

Therefore, the air expanding into the core material 3 by the heat treatment at the time of brazing can be quickly discharged to the outside, and the internal pressure can be prevented from increasing to prevent the panel from being deformed. Further, since the reinforcing member 20 disposed in the air vent passage 5 provided on the side surface of the frame member 2 comes into contact with the core member 3, the contact area increases, so that the shear stress due to the load applied to the panel during use is reduced. The concentration can be dispersed (relaxed), and the strength of the panel itself can be improved. Further, as shown in FIG.
Can be maintained when the panel is attached to the panel with the bolt 31 and the nut (not shown).

In the above description, the case where the reinforcing member is formed of the rectangular plate member 20 has been described. However, the reinforcing member does not necessarily have to be the rectangular plate member 20. For example, as shown in FIG. A reinforcing member is formed by arranging a plurality of short pipe members 21 (in the drawing, four pipe members are shown) or a short sheet member 22 formed in a corrugated shape as shown in FIG. May be. In this case, the pipe member 21 and the sheet member 22 are formed of an aluminum alloy member, and when both the frame member 2 and the core member 3 are not formed of the aluminum clad material, FIGS. In the same manner as shown in the above, it is formed of a clad pipe or brazing sheet in which a brazing material is coated (cladded) on the surface of an aluminum base material. Further, the pipe member 21 may be a rectangular pipe or a trapezoidal pipe instead of the circular pipe, and the waveform of the sheet member 22 may be a triangular or trapezoidal waveform instead of the quadratic curve.

When the mounting member 30 is mounted on the corner of the panel, as shown in FIG. 18, the reinforcing member 20 is mounted on the side where the mounting member 30 is mounted and on the side adjacent to the side. Thereby, the strength of the panel can be further increased.

Eighth Embodiment FIG. 19 is an enlarged sectional view showing a main part of a sandwich panel according to an eighth embodiment of the present invention, and FIG. 20 is a sectional perspective view showing a main part of the eighth embodiment.

In the eighth embodiment, a raised portion 4B which comes into contact with the core material 3 is formed at an intermediate portion of the side of the frame material 2, and
An air vent passage 5 communicating with the outside is formed on both sides of the raised portion 4B, and the frame member 2 and the core member 3 are provided at an appropriate position in the air vent passage 5, that is, at a portion including a mounting portion of the mounting member 30.
Member 2 formed of, for example, a rectangular plate material that comes into contact with
0 is interposed.

In the eighth embodiment, other parts are the same as those in the first and seventh embodiments, and the same parts are denoted by the same reference numerals and description thereof will be omitted.
Further, the reinforcing member 20 may be formed of, for example, a pipe member or a corrugated sheet member, similarly to the seventh embodiment, instead of the rectangular plate.

With the above construction, air expanding into the core material 3 by the heat treatment at the time of brazing can be quickly discharged to the outside, and the internal pressure can be prevented from increasing to prevent deformation of the panel. Can be prevented. Further, since the reinforcing member 20 disposed in the air vent passage 5 provided on the side surface of the frame member 2 comes into contact with the core member 3, the contact area increases, so that the shear stress due to the load applied to the panel during use is reduced. The concentration can be dispersed (relaxed), and the strength of the panel itself can be improved. Further, as shown in FIG. 20, it is possible to maintain the strength when the mounting member 30 is mounted on the panel with the bolt 31 and the nut (not shown).

Ninth Embodiment FIG. 21 is an enlarged sectional view showing a main part of a sandwich panel according to a ninth embodiment of the present invention, and FIG. 22 is an exploded perspective view showing a main part of the ninth embodiment.

The ninth embodiment is a case in which the attachment of the attachment member 30 to the reinforcing frame 2A disposed in the middle of the panel is considered. That is, as shown in FIGS. 21 and 22, in the sandwich panel having the reinforcing frame member 2A in the middle part of the panel as in the sixth embodiment, both sides of the reinforcing frame member 2A, that is, the core member 3 On the side surfaces in contact with each other, raised portions 4C that are in contact with the core material 3 are formed at the end portions on both sides of the surface plate 1, and an air vent passage 5 that communicates with the outside is formed between the raised portions 4C. This is a case where a reinforcing member 20 that comes into contact with the frame member 2 and the core member 3 is interposed at an appropriate position in the air vent passage 5, that is, at a portion including a mounting portion of the mounting member 30.

In the ninth embodiment, the other parts are the same as those in the first and sixth embodiments, and the same parts are denoted by the same reference numerals and description thereof will be omitted.
Further, the reinforcing member 20 may be formed of, for example, a pipe member or a corrugated sheet member, similarly to the seventh embodiment, instead of the rectangular plate.

With the above configuration, air expanding into the core member 3 due to heat treatment during brazing can be quickly discharged to the outside, and an increase in internal pressure can be prevented to prevent deformation of the panel. Can be prevented. Further, since the contact area of the reinforcing member 20 provided in the air vent passage 5 provided on the side surface of the reinforcing frame member 2A comes into contact with the core member 3, the contact area increases. The concentration of stress can be dispersed (relaxed), and the strength of the panel itself can be improved. Further, FIG.
As shown in FIG. 1, the strength when the mounting member 30 is mounted on the panel with the bolts 31 and the nuts 32 can be maintained.

Other Embodiments (1) In the seventh to ninth embodiments, the reinforcing member 20
22 to 22 are formed of a plate-shaped member, a pipe member, or a sheet-shaped member bent in a wave shape,
As shown by imaginary lines in FIGS. 15 to 17, ventilation holes 23 may be formed in these reinforcing members 20 to 22. By forming the ventilation holes 23 in the reinforcing members 20 to 22 as described above, the inflated air can be discharged to the outside through the ventilation holes 23 and the air vent passage 5.

(2) In the above embodiment, the case where the front plate 1, the frame members 2, 2A, the core member 3 and the like are integrally joined by brazing has been described. As long as the members 3 and the like are integrally joined, the present invention can be applied to the case of joining with an adhesive.

(3) In the above embodiment, the case where the core material 3 is a circular cylindrical body has been described. However, the core material 3 is a cylindrical body other than a circle, for example, a triangular, square, pentagonal, or hexagonal cylindrical body. Alternatively, a honeycomb core material formed by joining trapezoidal wave-shaped strips may be used.

(4) In the above embodiment, the case where the surface plate 1 is formed in a rectangular shape has been described. However, the surface plate 1 is not necessarily required to be a rectangular shape. The shape may be as follows.

[0089]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The results of a strength analysis performed to examine the strength of the sandwich panel of the present invention and the conventional sandwich panel will be described below.

As samples, the comparative example shown in FIG. 23, the example 1 shown in the first embodiment (see FIG. 2), and the example 2 shown in the third embodiment (see FIG. 4) are prepared. . However,
The contact area between the raised portion 4 (j) and the core material 3 (c) is the same.

The samples of Comparative Example, Example 1 and Example 2 were subjected to FEM (Finite Element Metho
d) When the maximum shear stress ratio of the core was examined by analysis, the results shown in Table 1 were obtained.

☆ Analysis conditions ・ Analysis 1 Panel thickness: 50 mm, surface plate thickness: 1.5 mm, core material thickness: 0.2 mm, core material diameter: 27 mm ・ Analysis 2 Panel thickness: 50 mm, table Face plate thickness: 2.5 mm, core material thickness: 0.2 mm, core material diameter: 27 mm Analysis 3 Panel thickness: 100 mm, surface plate thickness: 2.5 mm, core material thickness: 0.1 mm 2 mm, core material diameter: 30 mm.

[0093]

[Table 1] As a result of the above experiment, in the comparative example in Analysis 1, the ratio of the maximum shear stress of the core was 1.00, whereas the ratio of Example 1 was
Then, in Example 2, it was 0.80. In the comparative example in Analysis 2, the ratio of the maximum shear stress of the core was 1.00, whereas in Example 1, the ratio was 0.8%.
8. In Example 2, it was 0.82. In the comparative example in Analysis 3, the ratio of the maximum shear stress of the core was 1.0%.
0, whereas in Example 1, 0.78, Example 2
Was 0.79.

From the above results, the samples of Examples 1 and 2 had a lower shear stress than the comparative example. Due to the reduction of the shear stress, the strength of the supporting portion when the panel was used was 12%. It was found to be improved by ~ 20%. Further, it was found that Example 2 was effective when the strength of the surface plate, the bonding strength between the surface plate and the core material, and the bonding strength between the surface plate and the frame material were high. In the panels of the second embodiment, the fourth embodiment and the fifth embodiment, it is presumed that the shear stress is lower than that of the panel of the comparative example.

[0095]

As described above, according to the sandwich panel of the present invention, since it is configured as described above, the following effects can be obtained.

(1) According to the first to sixth and twelfth aspects of the invention, the expanded air generated during the heat treatment for joining the surface plate, the frame material and the core material can be quickly discharged to the outside. Therefore, it is possible to prevent the deformation of the panel due to the increase in the internal pressure, and it is possible to improve the productivity and the product yield.

Also, by increasing the contact area of the frame material with the core material in the air vent portion, the concentration of shear stress due to the load applied to the panel can be dispersed (relaxed), so that the strength of the panel itself can be improved. Can be planned.

(2) According to the invention as set forth in claims 7 to 12, the reinforcing member which comes into contact with the frame member and the core member is interposed in the air vent passage formed on the side surface of the frame member. In addition to this, the strength of the panel itself can be further increased, and the attachment of the attachment member to the outside of the panel can be further enhanced.

[Brief description of the drawings]

FIG. 1 is a sectional perspective view showing a first embodiment of a sandwich panel of the present invention.

FIG. 2 is an enlarged sectional view of a main part of the first embodiment.

FIG. 3 is an enlarged sectional view of a main part showing a second embodiment of the sandwich panel of the present invention.

FIG. 4 is an enlarged sectional view of a main part showing a third embodiment of the sandwich panel of the present invention.

FIG. 5 is an enlarged sectional view of a main part showing a fourth embodiment of the sandwich panel of the present invention.

FIG. 6 is an enlarged sectional view of a pipe member according to a fourth embodiment.

FIG. 7 is a perspective view showing an attachment state of a frame member and a pipe member in a fourth embodiment.

FIG. 8 is an enlarged sectional view of a main part using another pipe member in the fourth embodiment.

FIG. 9 is an enlarged sectional view of a main part showing a fifth embodiment of the sandwich panel of the present invention.

FIG. 10 is an enlarged sectional view showing a corrugated sheet member according to a fifth embodiment.

FIG. 11 is a perspective view showing an attachment state of a frame member and a sheet member in a fifth embodiment.

FIG. 12 is an enlarged sectional view of a main part showing a sixth embodiment of the sandwich panel of the present invention.

FIG. 13 is an enlarged sectional view of a main part showing a seventh embodiment of the sandwich panel of the present invention.

FIG. 14 is an enlarged sectional view of a reinforcing member according to a seventh embodiment.

FIG. 15 is a sectional perspective view showing a main part of a seventh embodiment.

FIG. 16 is a sectional perspective view showing another form of the reinforcing member according to the seventh embodiment.

FIG. 17 is a sectional perspective view showing still another form of the reinforcing member according to the seventh embodiment.

FIG. 18 is a sectional perspective view showing another attachment form of the reinforcing member according to the seventh embodiment.

FIG. 19 is an essential part enlarged cross-sectional view showing an eighth embodiment of the sandwich panel of the present invention.

FIG. 20 is a sectional perspective view showing a main part of the eighth embodiment.

FIG. 21 is an enlarged sectional view showing a ninth embodiment of the sandwich panel of the present invention.

FIG. 22 is an exploded perspective view showing a main part of a ninth embodiment.

FIG. 23 is an enlarged sectional view of a main part showing a conventional sandwich panel.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Surface plate 2 Frame material 2A Reinforcement frame material 3 Core material 4, 4A, 4B, 4C Raised part 5 Air vent passage 6,7 Vent hole 9 Pipe member 10 Recessed groove 11 Vent hole 12 Corrugated sheet member 13 Vent hole 20 Reinforcement Member 20a Aluminum alloy base material 20b Brazing material 21 Pipe member (reinforcing member) 22 Corrugated sheet member (reinforcing member) 23 Vent hole 30 Mounting member

Continuation of the front page (72) Inventor Akihiko Yoshimi 2-2-220 Higashishinagawa, Shinagawa-ku, Tokyo Japan Light Metal Co., Ltd. (72) Inventor Hideaki Endo 2-2-220 Higashishinagawa, Shinagawa-ku, Tokyo Japan Light Metal Stock In-house (72) Inventor Hiroshi Yamamoto 20-1 Shimoda-cho, Sakai-shi, Osaka F-term in Nippon Light Metal Co., Ltd. Osaka factory 2E162 BA03 BB08 BB10 CB08 CB15 4F100 AB10A AB10B AB10C AB31 AT00A AT00B BA03 BA06 BA10A BA10B BA13 CB10 DA11 DB14 DB17 DC02C DC11 DC25 DD05 DD12 DH00 GB07 GB08 JD02 JK01 JL02 JL04

Claims (12)

[Claims] 1. A vehicle comprising a pair of surface plates, a core material interposed between the surface plates, and a frame material interposed between at least sides of an intermediate portion or sides of the surface plates. In the sandwich panel, a ridge that comes into contact with the core material is formed at one or a plurality of end portions on the side surfaces of the frame member on the side of the front surface plate and at an intermediate portion between the both end portions, and the ridge portion is formed. A sandwich panel, wherein an air vent passage communicating with the outside is formed therebetween. 2. It has a pair of surface plates, a core material interposed between these surface plates, and a frame material interposed between at least sides of an intermediate portion or sides of the both surface plates. In the sandwich panel, a raised portion that is in contact with the core material is formed at an intermediate portion between the side portions of the frame material, and air vent passages that communicate with the outside are formed on both sides of the raised portion. And sandwich panel. 3. It has a pair of surface plates, a core material interposed between these surface plates, and a frame material interposed between at least sides of an intermediate portion or sides of the both surface plates. In the sandwich panel, a raised portion that contacts the core material is formed at an end of the side surface of the frame material on the side of the front surface plate, and a concave groove that communicates with the outside is formed between the raised portions; A sandwich panel in which a plurality of pipe members that are in contact with a core material and a frame material are arranged in a space formed by a groove and a core material. 4. The sandwich panel according to claim 3, wherein said pipe member is formed of a long material along a frame material, and a vent hole is formed in said pipe member. . 5. It has a pair of surface plates, a core material interposed between these surface plates, and a frame material interposed between at least one of the intermediate portions or the side portions of the both surface plates. In the sandwich panel, a raised portion that contacts the core material is formed at an end of the side surface of the frame material on the side of the front surface plate, and a concave groove that communicates with the outside is formed between the raised portions; A sandwich panel comprising a space formed by a groove and a core material, wherein a sheet member that is bent in a wave shape to be in contact with the core material and the frame material is disposed. 6. The sandwich panel according to claim 5, wherein said sheet member is formed of a through-material along a frame material, and a vent hole is formed in said sheet member. 7. It has a pair of surface plates, a core material interposed between these surface plates, and a frame material interposed between at least one of the intermediate portions or the side portions of the both surface plates. In the sandwich panel, at the ends of the side surfaces of the frame member on the side of the front surface plates, ridges that respectively contact the core material are formed, and between the ridges, an air vent passage communicating with the outside is formed. A sandwich panel comprising a reinforcing member in contact with the frame member and the core member at an appropriate position in an air vent passage. 8. It has a pair of surface plates, a core material interposed between these surface plates, and a frame material interposed between at least sides of an intermediate portion or sides of the both surface plates. In the sandwich panel, a protruding portion that contacts the core material is formed at an intermediate portion between the side portions of the frame material, and an air vent passage communicating with the outside is formed on both sides of the protruding portion. A sandwich panel comprising a reinforcing member in contact with the frame member and the core member at an appropriate position. 9. The sandwich panel according to claim 7, wherein the reinforcing member is any one of a plate member, a pipe member, and a sheet member bent in a wave shape. 10. The sandwich panel according to claim 7, wherein a ventilation hole is formed in said reinforcing member. 11. The sandwich panel according to claim 7, wherein the surface plate, the core material, the frame material, and the reinforcing member are formed of an aluminum member, and at least a surface of the reinforcing member is provided.
A sandwich panel formed by coating a brazing material. 12. The sandwich panel according to claim 1, wherein said frame member is formed of a hollow member, and a vent hole is formed in a side surface of said frame member. And sandwich panel.