JP2003108145A - Soundproof member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a soundproof member which is high in smoothness, excellent in appearance characteristic, small in weight and size, high in durability and mechanical strength and is low in manufacturing cost. SOLUTION: The soundproof member 1 has aluminum or aluminum alloy structural angles 2 and two parallel perforated metallic sheets 4 fixed to projecting parts 3 apart spacings between the structural angles 2. The perforated metallic sheet 4 on the inner side is fitted and fixed into grooves 5 of a pair of the projecting parts 3 facing each other and the perforated metallic sheet 4 on the outer side is fitted and fixed by adhesives to level difference 6 of a pair of the projecting parts 3 facing each other. The perforated metallic sheets are formed by drilling metallic sheets with a multiplicity of through-holes.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to structural members for railway vehicles (bullet trains, subways, conventional lines), structural members for automobiles,
Soundproofing materials used for soundproof walls (bullet trains, highways, national roads), road sound absorbing boards (back surface sound absorbing board, horizontal sound absorbing board for excavation, wall sound absorbing board for excavation / tunnel) The present invention relates to a soundproof member made of material.

[0002]

2. Description of the Related Art For example, an extruded aluminum profile having zigzag ribs or partitions between two parallel face plate parts is used as a structural member of a vehicle, particularly as a surface member arranged on the surface. By using this aluminum extruded profile, the weight of the structural member is reduced. But,
Since aluminum profiles easily transmit sound, it is necessary to take noise reduction measures to improve the riding comfort of passengers or passengers.

Therefore, conventionally, in the Shinkansen and automobiles, a damping material is attached to the vehicle body for natural vibration sound,
As a noise countermeasure against noise generated from the engine, road noise from the wheels, rolling noise, etc., a sound absorbing material is installed on the inner surface of the vehicle, the underside of the floor, the inner surface of the skirt, and the inside of the engine, and the structure. It is practiced to increase the rigidity of members.

On the other hand, for vehicles running at high speed such as Shinkansen and automobiles, noise countermeasures against wind noise caused by high-speed air flow may be necessary. In that case, it is necessary to add soundproofing performance to a structural member on the vehicle surface (hereinafter, also referred to as a surface member). For this purpose, a sound absorbing material may be attached to the surface of the surface member, or the surface member itself may be composed of a sound absorbing material. However, generally used sound absorbing materials are often flexible, and as a part of the surface member. Insufficient mechanical strength.

Therefore, as a noise countermeasure against wind noise, from the viewpoint of maintaining mechanical strength and preventing scattering of the sound absorbing material, for example, when the wind speed is 60 to 90 km / s, it is applied to the structural member of the vehicle from below. , Sound absorbing material, glass cloth, metal scraps, wire mesh over the soundproof material, to prevent scattering of the sound absorbing material and glass cloth due to high-speed air flow, the aperture ratio is 2
It is common to provide a soundproof member in which 0% or more porous metal plates are stacked. This perforated metal plate suppresses the soundproof material, and the aperture ratio is as high as 20% or more so that the sound wave of noise reaches the sound absorbing material and the glass cloth without being reflected by the perforated metal plate. ing.

[0006]

However, the conventional soundproofing member is made by stacking soundproofing materials in multiple layers, and since it is necessary to use a plurality of materials having a high specific gravity, the mass becomes heavy and the durability is poor. It is enough. In addition, there are drawbacks that the surface smoothness is low and the design is low. Further, there is a problem that the volume becomes large and the manufacturing cost becomes high.

The present invention has been made in view of the above problems, and has high smoothness, excellent appearance, light weight and small size, and high durability and mechanical strength.
It is an object of the present invention to provide a soundproofing member having a low manufacturing cost.

[0008]

A soundproofing member according to the present invention comprises an aluminum or aluminum alloy extruded profile having a sectional shape of a structure in which ribs are connected between a pair of parallel plane plates, and one of the profiles. A plurality of protrusions provided on the outer surface of the face plate, and a porous metal plate fixed to the protrusion so as to be spaced from the one face plate and having a plurality of through holes formed therein. And

In this soundproof member, it is preferable that a plurality of the metal plates are arranged in parallel and are fixed to the protrusions.

In this case, the method of fixing the metal plate to the protrusion is preferably as follows.

That is, in the invention described in claim 1,
Grooves are formed on the side surfaces of the protrusions, and the metal plate is fitted into and bonded to the grooves of a pair of opposing protrusions and fixed to the protrusions.

In the invention according to claim 2, a flange portion extending parallel to the surface of the one face plate portion is formed on the protrusion, and the metal plate is provided on the upper surface of the flange portion. It is joined by rivets and fixed to the protrusion.

In the invention according to claim 3, a flange portion extending parallel to the surface of the one face plate portion is formed on the protrusion, and both ends of the metal plate are folded back. The both ends are fitted in the gap between the flanges or in the gap between the flange and the face plate portion, joined to the lower surface of the flange by rivets, and fixed to the protrusion.

In the invention according to claim 4, the protrusions are linear protrusions formed in parallel to each other so as to extend in one direction on the outer surface of the one face plate portion, and the metal plate is Ribs are formed by bending so as to match the shape of the linear projections, and the metal plate is fixed to the projections by being joined to the tops of the projections by rivets at the tops of the ribs. .

According to a fifth aspect of the present invention, the protrusions are formed parallel to each other so as to extend in one direction on the outer surface of the one face plate portion, and the protrusions have their tops from the outer surface. A flange portion extending parallel to the metal plate is formed so that the metal plate is curved to match the flange portion to form a curved surface portion, and the metal plate is the curved surface portion of the flange of the protrusion. It is fixed to the protrusion by being joined to the portion by rivets.

In the invention according to any one of claims 2 to 5, when there are a plurality of metal plates, the outermost metal plate is a flat plate and is joined to the top of the protrusion by rivets. It can be configured to be fixed to the protrusion.

In the invention according to claim 7, the protrusions are linear protrusions formed in parallel to each other so as to extend in one direction on the outer surface of the one face plate, and the metal plate is Ribs are formed by bending so as to match the shape of the linear projections, and the metal plate is fixed to the projections by being joined to the tops of the projections by overlapping friction welding at the tops of the ribs. ing.

According to an eighth aspect of the present invention, the protrusions are formed parallel to each other so as to extend in one direction on the outer surface of the one face plate portion, and the protrusions have their tops from the outer surface. A flange portion extending parallel to the metal plate is formed so that the metal plate is curved to match the flange portion to form a curved surface portion, and the metal plate is the curved surface portion of the flange of the protrusion. And is fixed to the protrusion by being joined to the portion by lap friction welding.

In the invention described in claim 7 or 8,
When there are a plurality of metal plates, the outermost metal plate may be a flat plate that is joined to the top of the protrusion by lap friction bonding and is fixed to the protrusion.

According to a tenth aspect of the present invention, the metal plate is formed with a rib that fits into the protrusion, and the rib of the metal plate is spot-welded to the protrusion.
The metal plate is fixed to the protrusion by being joined by arc welding, laser welding, lap friction joining or rivet joining or spot welding, arc welding, laser welding or lap joining and rivet joining.

Another soundproofing member according to the present invention is an aluminum or aluminum alloy extruded profile having a sectional shape of a structure in which ribs are connected between a pair of parallel plane plates, and an outer surface of one face plate of this profile. A plurality of protrusions provided on the base plate, and a porous metal molded body disposed between the protrusions so as to be spaced from the one face plate portion, and the porous metal molded body has a plurality of through holes. A corrugated perforated metal plate with holes formed therein or a perforated metal plate with a plurality of through holes formed into a box-shaped assembly, between the protrusions of the profile having a temperature higher than the operating temperature. It is characterized in that the porous metal molded body is fitted, and the metal molded body is fixed to the projection portion by baking at a lowered use temperature.

Yet another soundproof member according to the present invention is an aluminum or aluminum alloy extruded profile having a cross-sectional shape of a structure in which ribs are connected between a pair of parallel plane plates, and one face plate of this profile. A plurality of protrusions provided on the outer surface, a surface plate that is fixed on the protrusions and is superposed on the protrusions so as to connect the plurality of protrusions, and the surface plate on the side of the profile. With a porous metal molded body fixed at a position between the protrusions on the surface, the porous metal molded body is a corrugated porous metal plate having a plurality of through holes formed or a plurality of through holes. The formed porous metal plate is assembled in a box shape, and the protrusion is fitted in a groove formed between the porous metal molded bodies.

In the present invention, it is needless to say that the metal plate includes an alloy plate in addition to the metal simple substance.

In the present invention, since the porous metal plate (or the porous metal molded body) having a plurality of through holes is arranged at a distance from the outer surface of the aluminum or aluminum alloy extruded profile, the Helmholtz resonance principle is obtained. Due to the viscous damping principle, it is possible to satisfactorily absorb noise in a frequency band around the resonance frequency and a wide range of frequency bands other than the resonance frequency, and to exert a soundproof effect. Thereby, soundproofing can be added to the metal plate. Moreover, since this porous metal plate (or porous metal molded body) is located on the outermost surface, the surface flatness is high, and since the porous metal plate (or porous metal molded body) is made of a metal or an alloy, it has excellent durability. There is.

In the present invention, since the shape member as the structural member is the extruded shape member of aluminum or aluminum alloy, the weight can be reduced and the metal plate can be
Further weight reduction can be achieved by using an aluminum or aluminum alloy plate.

[0026]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be specifically described below with reference to the accompanying drawings. FIG. 1 is a sectional view showing a soundproof member 1 according to the first embodiment of the present invention. The soundproof member 1 has a shape member 2 and two perforated metal plates 4 fixed to the shape member 2 with a distance therebetween. The cross section of the shape member 2 has a structure in which a pair of face plate portions 2a and 2b are arranged in parallel, and ribs 2c inclined with respect to the face plate portions 2a and 2b are bridged between the face plate portions 2a and 2b. . Then, the protrusions 3 are formed on the outer surface of the one face plate portion 2b of the shape member 2 at appropriate intervals. The frame 2 is manufactured by extruding aluminum or an aluminum alloy.

The projection 3 of the shape member 2 has a trapezoidal or rectangular cross section, and is cut on both side surfaces thereof at positions approximately half in the height direction in parallel with the outer surface of the face plate portion 2b. The groove 5 is formed. A step 6 is formed at the upper end of the protrusion 3. Since the shape member 2 including the protruding portion 3 is formed by extrusion molding, the protruding portion 3 extends in the direction perpendicular to the paper surface of FIG. 1 and is a linear protruding portion.

Two perforated metal plates 4 are arranged between the protrusions 3 in parallel with the face plate 2b with a gap between them and the face plate 2b. , The inner porous metal plate 4 is fitted and fixed in the grooves 5 of the pair of opposing projections 3, and the outer porous metal plate 4 is attached to the step 6 of the pair of opposing projections 3 by an adhesive. It is joined and fixed. The inner porous metal plate 4 may be fitted in the groove 5 and may be fixed to the protrusion 3 using an adhesive.

The porous metal plate 4 is a metal plate having a large number of through holes formed therein, and can be manufactured from an aluminum or aluminum alloy plate, a steel plate or the like. In addition,
From the viewpoint of recyclability, it is preferable that the porous metal plate 4 is made of the same material as the aluminum or aluminum alloy as the shape member. Further, by using an aluminum or aluminum alloy plate as the porous metal plate 4, the soundproof member 1 can be further reduced in weight in combination with the shape member 2 being an extruded shape member of aluminum or an aluminum alloy.

In the soundproof member thus constructed, the two perforated metal plates 4 are arranged at an appropriate distance from the face plate portion 2b of the shape member 2, so that resonance is caused by the Helmholtz resonance principle and the viscous damping principle. It is possible to satisfactorily absorb noise in a frequency band around the frequency and a wide frequency band other than the frequency band, and exhibit a soundproof effect. Further, in this embodiment, the surface of the outer porous metal plate 4 and the upper end surface of the protrusion 3 are substantially flush with each other, and when the soundproof member 1 is used as a surface member of a vehicle, its outer surface is It has no irregularities and is flat, and has excellent design.

In the manufacturing process of the soundproof member 1, a thermosetting resin is used as an adhesive, and when the profile 2 is inserted into the annealing furnace and annealed, the thermosetting resin is simultaneously cured. By doing so, the process can be shortened.

Next, a second embodiment of the present invention will be described with reference to FIG. 2, the same components as those in FIG. 1 are designated by the same reference numerals, and detailed description thereof will be omitted. Shape 2
A plurality of protrusions 3a are formed on the outer surface of the at regular intervals. The protrusion 3a is erected perpendicularly to the face plate 2b, and extends linearly parallel to the surface of the face plate 2b.

A laterally extending flange 7 is formed in the middle of the protrusion 3a, and the inner porous metal plate 4 has a width that matches the interval between the opposing protrusions 3a. Both ends thereof are superposed on the upper surface of the flange 7 at each intermediate portion of the projecting portion 2a facing each other, and are joined and fixed to the flange 7 by the rivets 8. The outer porous metal plate 4a is a large single plate that covers the entire soundproof member 1, and is joined and fixed to the upper end of each protrusion 3a by a rivet 8.

In this embodiment, the porous metal plates 4, 4a are used.
The projection 3a and the projection 3a are joined by the rivet 8, but the same effect as that of the first embodiment shown in FIG. 1 is obtained. The outer porous metal plate 4a may also be divided at each protrusion 3a. However, the strength of the soundproofing member 1 can be increased and the outer surface of the soundproofing member 1 can be increased by forming the outer porous metal plate 4a as a large plate that covers the entire soundproofing member 1 as in the present embodiment. Is completely flat, and the design is extremely excellent.

FIG. 3A is a perspective view showing a third embodiment of the present invention, and FIG. 3B is a sectional view taken along the line AA of FIG. 3A. 3A and 3B, the same components as those in FIG. 2 are designated by the same reference numerals, and detailed description thereof will be omitted. In this embodiment, the outer porous metal plate 4 of the second embodiment shown in FIG. 2 is used.
Instead of a, a porous metal plate 4b in which a rectangular convex portion 40b is provided between the protruding portions 3a is used. This convex portion 40
“B” is a rectangular island shape extending in the longitudinal direction of the protrusion 3a in plan view.

In this embodiment, since the convex portion 40b is formed on the porous metal plate 4b, the rigidity is high and the porous metal plate 4b can be made thinner.

Next, a fourth embodiment of the present invention will be specifically described with reference to the sectional view of FIG. In the present embodiment, the projections 3a are formed on the outer surface of the face plate 2b of the shape member 2 so as to extend parallel to each other. A flange 7 is formed on the top and the middle of the protrusion 3a, and the protrusion 3a has a portion below the lower flange 7 wider than a portion above the lower flange 7. The perforated metal plate 4c is fixed to the lower surfaces of the upper and lower flanges 7 by rivets 8. Both ends of the porous metal plate 4c in the width direction (projection 3a side) are folded back, and two vertical bent portions are formed at each end. The both ends of the porous metal plate 4c are fitted to the lower part of the flange between the opposing projections 3a, and the flange 7 and the porous metal plate 4c overlapping the lower surface thereof are joined by the rivets 8 to form the porous metal plate. 4c is fixed to the protrusion 3a.

In this embodiment, the flange 7 at the top of the protrusion 3a projects to the outer surface of the soundproof member 1. However, this flange 7 is thin and does not impair the design. Since both ends of the porous metal plate 4c of this embodiment are folded back, there is an advantage that the strength thereof is high.

Next, a fifth embodiment of the present invention will be described with reference to FIG. The outer surface of the face plate 2b of the shape member 2 is shown in FIG.
A protrusion 3 similar to that of the embodiment shown in FIG. The outer porous metal plate 4a is a large plate that covers the entire soundproof member 1 or covers a plurality of protrusions 3 as in the embodiment shown in FIG. However, the inner porous metal plate 4d is bent following the shape of the upper half of the protrusion 3, and the bent portion of the inner porous metal plate 4d is fitted to the protrusion 3 and the outer porous metal These perforated metal plates 4d and 4a are simultaneously joined to the tops of the protrusions 3 by the rivets 8 in the state where the plates 4a are stacked.

In this embodiment, the number of joints by rivets is small and the assembly work is easy.

FIG. 6 (a) is a perspective view showing a sixth embodiment of the present invention, and FIG. 6 (b) is a sectional view taken along line BB of FIG. 6 (a). In this embodiment, instead of the outer porous metal plate 4a of the embodiment shown in FIG. 5, a porous metal plate 4b having a convex portion 40b of the embodiment shown in FIG. 3 is used. 6, the same components as those in FIG. 5 are designated by the same reference numerals, and detailed description thereof will be omitted. The porous metal plate 4b of this embodiment has the convex portion 4
0b is formed between the projections 3a, and the porous metal plate 4b is fixed to the projections 3a by the rivets 8.

In this embodiment, since the convex portion 40b is formed on the porous metal plate 4b, the rigidity is high and the thickness of the porous metal plate 4b can be reduced.

7 (a) and 7 (b) are sectional views showing a seventh embodiment of the present invention. The present embodiment is different from the embodiment shown in FIG. 5 in that the projection 3 formed on the outer surface of the face plate portion 2b of the profile member 2 is different.
The difference is that b has a curved flange 7a on its top, and the inner porous metal plate 4e has irregularities shaped to follow the curved surface of the flange 7a. Then, the irregularities of the inner porous metal plate 4e are fitted to the flanges 7a of the projections 3b, and the large outer porous metal plate 4a is stacked on the flange 7a. 4e is simultaneously joined to the flange 7a of the protrusion 3b. The porous metal plate 4e shown in FIG. 7 (a) has a convex portion that widens toward the end aligned with the flange 7a, and the porous metal plate 4e shown in FIG. 7 (b) has a convex portion that is bent vertically. Is.

In addition to the same effect as the embodiment shown in FIG. 5, this embodiment also has the flange 7a formed on the top of the projection 3b in this embodiment.
The position where the rivet 7 is driven is flexible, and the work is easy.

FIG. 8 is a sectional view showing an eighth embodiment of the present invention. In the present embodiment, the porous metal plates 4a and 4d in the embodiment of FIG. 5 are joined to the protrusions 3 by friction stir welding (FSW) using the tool 10 instead of the rivets. In this case, first, the inner porous metal plate 4d is
After friction stir welding to the protrusion 3 with the SW tool 10,
Further, the outer porous metal plate 4a is overlaid on the protrusion 3, and again,
By friction stir welding, the porous metal plate 4a is replaced with the porous metal plate 4d.
And the protrusion 3 (lapped FSW junction).

In the case where two porous metal plates 4a and 4d are fixed to the protrusion 3 in a state where they are stacked, if the two plates are friction stir welded at the same time, the interface between the porous metal plates 4a and 4d will be rolled up by stirring, and depending on the direction. The joint strength will decrease.
Therefore, in order to secure the joint strength, when joining two porous metal plates, friction stir welding is performed for each one porous metal plate, and the porous metal plates 4a and 4d are joined by two friction stir welding. There is a need to. The same applies to the case where there are three or more porous metal plates, and it is necessary to perform friction stir welding as many times as the number of porous metal plates. The rib 2d between the face plates 2a and 2b of the shape member 2 may be perpendicular to the face plates 2a and 2b as in the present embodiment.

FIG. 9 is a sectional view showing a ninth embodiment of the present invention. In this embodiment, a projection 3c having a rectangular cross section is formed on the outer surface of the face plate 2b of the profile 2. The inner porous metal plate 4f is bent so as to follow the shape of the protrusion 3c, and the porous metal plate 4f is joined to the side surface of the protrusion 3c by spot welding 11. Also,
The outer porous metal plate 4a of the large plate is at the top of the protrusion 3c,
Inner porous metal plate 4f by friction stir welding or mechanical joining
Is joined to. The outer porous metal plate 4a may be joined by friction stir welding or mechanical joining so as to penetrate the inner porous metal plate 4f and reach the top of the protrusion 3c.

As described above, not only rivet welding or friction stir welding but also a plurality of welding methods may be combined, and welding methods such as spot welding, arc welding, and laser welding are combined with friction stirring welding or mechanical welding. May be.

FIG. 10A is a sectional view showing a tenth embodiment of the present invention. A protrusion 3d having a T-shaped cross section is formed on the outer surface of the face plate 2b of the shape member 2. The protrusion 3d is provided at its top with a flange 7b extending in the lateral direction. In this embodiment, a box-shaped porous metal molded body 4g is used instead of the porous metal plate of each of the above-described embodiments. The porous metal molded body 4g is formed by assembling or assembling a porous metal plate into a box shape. The porous metal molded body 4g is arranged between a pair of opposing protruding portions 3d, and the flange 7b is interposed between the protruding portion 3d and the face plate portion 2b via the spacer 13.
It is sandwiched between and the face plate portion 2b and is restrained by shrink fitting. The porous metal molded body 4g is arranged in parallel with the face plate portion 2b with a proper distance from the face plate portion 2b by the spacer 13.

As shown in FIG. 10 (b), the bent portion 40g is formed by folding back both ends of the box-shaped porous metal molded body 4g, and this bent portion 40g is used in place of the spacer 13. Is also good.

Further, the sum of the thickness of the porous metal molded body 4g and the height of the spacer 13 or the entire height of the bent portion 40g of the porous metal molded body 4g having the bent portion 40g is the protrusion during extrusion molding at room temperature. It is longer than the distance between the flange 7b of the portion 3c and the face plate portion 2b. And
After heating the profile 2 to a high temperature, the porous metal molded body 4g and the spacer 13 are fitted between the flange 7b and the face plate portion 2b, and the profile 2 is cooled to room temperature. As a result, the porous metal molded body 4g is restrained and fixed by the protrusion 3d by shrink fitting.

Instead of the porous metal molded body 4g, a porous metal molded body having a recess as shown in FIGS. 3 and 6b is used, and this is restrained and fixed between the protrusions 3d by shrink fitting. You can also

FIG. 11 is a sectional view showing an eleventh embodiment of the present invention. In this embodiment, instead of fixing the porous metal molded body 4g between the protrusions 3d by shrink fitting in the embodiment of FIG. 10, a plurality of porous metal molded bodies 4g are provided on the surface plate 40.
The surface plate 40h is fixed to the lower surface of h at appropriate intervals and fixed to the top of the projection 3d by the rivet 8. The interval between the porous metal moldings 4g is the same as the width of the projection 3d, and the projections 3d are fitted in the grooves formed between the porous metal moldings 4g. The surface plate 40h is superposed so as to contact the top of the protrusion 3d, and is directly joined to the protrusion 3d by the rivet 8.

[Brief description of drawings]

FIG. 1 is a sectional view showing a soundproof member according to a first embodiment of the present invention.

FIG. 2 is a sectional view showing a soundproof member according to a second embodiment of the present invention.

3A is a perspective view showing a soundproof member according to a third embodiment of the present invention, and FIG. 3B is a sectional view taken along the line AA of FIG. 3A.

FIG. 4 is a sectional view showing a soundproof member according to a fourth embodiment of the present invention.

FIG. 5 is a sectional view showing a soundproof member according to a fifth embodiment of the present invention.

6A is a perspective view showing a soundproof member according to a sixth embodiment of the present invention, and FIG. 6B is a sectional view taken along line BB in FIG. 6A.

7A is a sectional view showing a soundproof member according to a seventh embodiment of the present invention, and FIG. 7B is a modification thereof.

FIG. 8 is a sectional view showing a soundproof member according to an eighth embodiment of the present invention.

FIG. 9 is a sectional view showing a soundproof member according to a ninth embodiment of the present invention.

10A is a sectional view showing a soundproof member according to a tenth embodiment of the present invention, and FIG. 10B is a modification thereof.

FIG. 11 is a sectional view showing a soundproof member according to an eleventh embodiment of the present invention.

[Explanation of symbols]

1: Soundproof member 2: Profile 2a, 2b: face plate part 2c: rib 3, 3a, 3b, 3c, 3d: protrusions 4, 4a, 4b, 4c, 4d, 4e, 4f: Perforated metal plate 4g: Porous metal molding 5: groove 6: Step 7, 7a, 7b: Flange 8: Rivet 9: Patch 10: FSW tool 11: Spot welding 12: Friction stir welding or mechanical welding 13: Spacer

Front page continuation (51) Int.Cl. ⁷ Identification code FI theme code (reference) E01F 8/02 (72) Inventor Seiji Sasabe Fujiwara City, Kanagawa 100-1 Urakawachi Urakawachi Co., Ltd. In-house (72) Inventor Toshimitsu Tanaka 1-5-5 Takatsukadai, Nishi-ku, Kobe-shi, Hyogo Kobe Steel Works, Ltd. Kobe Technical Research Institute F-term (reference) 2D001 AA01 CA02 CB05 CC01 CD02 3D003 AA07 AA16 BB01 CA02 CA31 CA44 DA20 5D061 AA16 BB02 BB37 DD01

Claims (13)

[Claims] 1. An aluminum or aluminum alloy extruded profile having a sectional shape of a structure in which ribs are connected between a pair of parallel plane plates, and a plurality of protrusions provided on the outer surface of one face plate of the profile. And a porous metal plate fixed to the protrusion so as to be spaced from the one face plate and having a plurality of through holes formed therein, and a groove is formed on the side surface of the protrusion. The soundproof member is characterized in that the metal plate is fitted into and bonded to the grooves of a pair of opposing projections and fixed to the projections. 2. An aluminum or aluminum alloy extruded profile having a cross-sectional shape of a structure in which ribs are connected between a pair of parallel plane plates, and a plurality of protrusions provided on the outer surface of one face plate of the profile. And a porous metal plate having a plurality of through holes fixed to the protrusion so as to be spaced from the one face plate, and the protrusion has a surface of the one face plate. A soundproof member, characterized in that a flange portion extending in parallel with is formed, and the metal plate is fixed to the projection portion by being joined to the upper surface of the flange portion by a rivet. 3. An aluminum or aluminum alloy extruded profile having a sectional shape of a structure in which ribs are connected between a pair of parallel plane plates, and a plurality of protrusions provided on the outer surface of one face plate of the profile. And a porous metal plate having a plurality of through holes fixed to the protrusion so as to be spaced from the one face plate, and the protrusion has a surface of the one face plate. A flange portion extending in parallel with the metal plate is formed, and both end portions of the metal plate are folded back, and the both end portions are fitted in the gap between the flanges or the gap between the flange and the face plate portion. The soundproof member is joined to the lower surface of the flange by a rivet and fixed to the protrusion. 4. An aluminum or aluminum alloy extruded profile having a sectional shape of a structure in which ribs are connected between a pair of parallel plane plates, and a plurality of protrusions provided on the outer surface of one face plate of the profile. And a porous metal plate fixed to the protrusion so as to be spaced from the one face plate portion and having a plurality of through holes formed therein, the protrusion being on the outer surface of the one face plate portion. The linear protrusions are formed in parallel to each other so as to extend in one direction, the metal plate is bent to form a rib to match the shape of the linear protrusions,
The soundproof member, wherein the metal plate is fixed to the protrusion by being joined to the top of the protrusion by a rivet at the top of the rib. 5. An extruded aluminum or aluminum alloy profile having a cross-sectional shape in which ribs are connected between a pair of parallel plane plates, and a plurality of protrusions provided on the outer surface of one face plate of the profile. And a porous metal plate having a plurality of through-holes fixed to the protrusion so as to be spaced from the one face plate, and the protrusion is formed on the outer surface of the one face plate. Are formed in parallel to each other so as to extend in a direction, and a flange portion is formed on the projection portion so as to extend parallel to the outer surface from the top portion thereof, so that the metal plate is aligned with the flange portion. A soundproof member, characterized in that it is curved to form a curved surface portion, and that the metal plate is fixed to the projection portion by being joined to the flange portion of the projection portion by a rivet at the curved surface portion. 6. The plurality of metal plates, wherein the outermost metal plate is a flat plate and is fixed to the protrusion by being joined to the top of the protrusion by rivets. The soundproof member according to any one of 2 to 5. 7. An aluminum or aluminum alloy extruded profile having a sectional shape of a structure in which ribs are connected between a pair of parallel plane plates, and a plurality of protrusions provided on the outer surface of one face plate of the profile. And a porous metal plate fixed to the protrusion so as to be spaced from the one face plate portion and having a plurality of through holes formed therein, the protrusion being on the outer surface of the one face plate portion. The linear protrusions are formed in parallel to each other so as to extend in one direction, the metal plate is bent to form a rib to match the shape of the linear protrusions,
The soundproofing member according to claim 1, wherein the metal plate is joined to the top of the protrusion at the top of the rib by lap friction welding and is fixed to the protrusion. 8. An extruded aluminum or aluminum alloy profile having a sectional shape of a structure in which ribs are connected between a pair of parallel plane plates, and a plurality of protrusions provided on the outer surface of one face plate of the profile. And a porous metal plate having a plurality of through-holes fixed to the protrusion so as to be spaced from the one face plate, and the protrusion is formed on the outer surface of the one face plate. Are formed in parallel to each other so as to extend in a direction, and a flange portion is formed on the projection portion so as to extend parallel to the outer surface from the top portion thereof, so that the metal plate is aligned with the flange portion. A soundproof member, characterized in that it is curved to form a curved surface portion, and the metal plate is fixed to the projection portion by being joined to the flange portion of the projection portion at the curved surface portion by lap friction welding. 9. When the number of the metal plates is plural, the outermost metal plate is a flat plate and is joined to the top of the protrusion by lap friction bonding and is fixed to the protrusion. The soundproofing member according to claim 7. 10. An extruded aluminum or aluminum alloy profile having a sectional shape of a structure in which ribs are connected between a pair of parallel plane plates, and a plurality of protrusions provided on the outer surface of one face plate of the profile. And a porous metal plate fixed to the protrusion so as to be spaced from the one face plate and having a plurality of through holes formed therein, and the metal plate is fitted to the protrusion. Ribs are formed, the ribs of the metal plate on the protrusions, spot welding, arc welding, laser welding, lap friction joining or rivet joining or spot welding, arc welding, laser welding or lap friction joining and rivet joining. A soundproof member, characterized in that the metal plate is fixed to the protrusion by being joined by merging. 11. The soundproofing member according to claim 1, wherein a plurality of the metal plates are arranged in parallel and are fixed to the protrusion. 12. An aluminum or aluminum alloy extruded profile having a sectional shape of a structure in which ribs are connected between a pair of parallel plane plates, and a plurality of protrusions provided on the outer surface of one face plate of the profile. And a porous metal molded body disposed between the protrusions so as to be spaced apart from the one face plate section, the porous metal molded body having a plurality of through holes formed therein. Is a corrugated metal plate or a perforated metal plate having a plurality of through-holes formed in a box shape, and the porous metal molded body is fitted between the protrusions of a profile having a temperature higher than the operating temperature. The soundproof member is characterized in that the metal molded body is fixed to the protrusion by baking at a lowered use temperature. 13. An aluminum or aluminum alloy extruded profile having a sectional shape of a structure in which ribs are connected between a pair of parallel plane plates, and a plurality of protrusions provided on the outer surface of one face plate of the profile. Part, a surface plate that is fixed on the protrusion and is superposed on the protrusion so as to connect the plurality of protrusions, and at a position between the protrusions on the surface of the surface plate on the side of the profile. Having a fixed porous metal molded body,
The porous metal molded body is a corrugated porous metal plate formed with a plurality of through holes or a porous metal plate having a plurality of through holes formed into a box-shaped assembly, the protrusions are A soundproof member fitted into a groove formed between porous metal molded bodies.