JP2014077290A - Soundproof panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a soundproof panel in which a sound insulation plate is mounted to a frame body without providing a mounting hole for screwing or the like in the sound insulation plate and the sound insulation plate is unlikely to be removed from the frame body to which the sound insulation plate has been mounted.SOLUTION: The soundproof panel comprises a rectangular sound insulation plate and a frame body including frame members which are mounted to four sides of the sound insulation plate. In the frame member, a recessed groove is formed into which an edge of the sound insulation plate is inserted. In the recessed groove, a stopper part protruding inwards is formed in a dovetail-groove shape at an opening side. A mounting member is affixed and mounted to the edge of the sound insulation plate without opening a mounting hole in the sound insulation plate. When such a force as to pull the sound insulation plate out of the recessed groove acts on the sound insulation plate, the mounting member is stopped in the stopper part of the recessed groove, and the sound insulation plate is prevented from being dropped from the frame body. The mounting member is affixed and mounted without providing the mounting hole in the sound insulation plate, such that a glass plate or a solar cell panel for which hole processing is difficult can be easily used for the sound insulation plate.

Description

  The present invention relates to a soundproof panel that is installed mainly along a road and prevents noise pollution caused by a vehicle.

Conventionally, various inventions have been made for soundproof walls for preventing noise pollution by vehicles.
For example, in Patent Document 1, a long frame material having an opening along the length direction is framed in a rectangular shape with the opening inside, and a frame is formed, and an edge member made of an elastic material is attached. In addition, the peripheral portion of the translucent plate in which the retaining hole is formed is press-fitted into the opening of the frame member, and the translucent plate is held in the frame body, and corresponds to the retaining hole of the translucent plate. From the insertion hole formed in the side surface of the frame member, a retaining pin having a small diameter is inserted relative to the retaining hole, and the distal end of the retaining hole is opposed to the inserting hole. A light-transmitting sound insulation board characterized by being supported by the inner wall of the present invention has been disclosed by the present applicant.

  Patent Document 2 discloses a panel having translucency made of a synthetic resin molded product such as polycarbonate and an annular shape that matches the contour shape of the panel, and a groove formed over the entire inner edge includes an outer edge of the panel. And an outer frame member in which a groove portion that holds the edge member in an inserted shape is formed over the entire inner edge, and the gap between the inner wall surface of the groove portion and the outer edge end surface of the panel in the edge member. In addition, there is disclosed a daylighting soundproof wall characterized in that a gap allowing thermal expansion and contraction of the panel is formed.

Japanese Patent Application No. 11-13024 Japanese Utility Model Publication No. 5-67614

The translucent sound insulation board as disclosed in Patent Document 1 is a retaining pin inserted into a retaining hole of the translucent plate when an accident or the like occurs on the installed road and a vehicle or cargo collides with it. However, it is difficult to cause a problem that the translucent plate is detached from the frame body due to the structure. However, because the translucent plate is provided with a retaining hole, glass and other plate materials that are relatively difficult to process are used for the translucent plate. It was hard to do.
Moreover, although the daylighting soundproof wall as shown in Patent Document 2 is formed without providing a mounting hole or the like in the panel, when the vehicle or the like collides with the panel in the installed state, the panel has an outer frame. There was concern about the possibility of being pulled out from the member.

  Therefore, the present invention provides a soundproof panel that is not provided with a mounting hole for screwing or the like in the sound insulating plate and is difficult to come off from a frame body to which the sound insulating plate is attached.

In order to achieve the above object, the present invention is configured as follows.
That is, the soundproof panel according to the present invention is a soundproof panel including a rectangular sound insulating plate and a frame body made of a frame member attached to each of the four sides of the sound insulating plate,
The frame member is formed with a concave groove into which an edge of the sound insulating plate is inserted, and the concave groove is formed in a dovetail shape in which a retaining portion protruding inward of the concave groove is formed on the opening side. Has been
An attachment member is attached and attached to the edge of the sound insulation plate without opening an attachment hole in the sound insulation plate.

According to the soundproof panel according to the present invention, a rectangular sound insulating plate and a frame body made of a frame member attached to each of the four sides of the sound insulating plate are provided, and a concave groove for inserting an edge portion of the sound insulating plate is formed in the frame member. The groove is formed in a dovetail shape by forming a retaining portion protruding inward of the groove on the opening side, and a mounting member is attached to the edge of the sound insulating plate. When a force such that a vehicle or the like collides with the sound insulating plate is applied to the sound insulating plate, the mounting member stops at the retaining portion of the concave groove, and the sound insulating plate is prevented from falling off the frame.
Further, since the attachment member is attached to the sound insulation plate without attaching an attachment hole, a glass plate or a solar cell panel that is difficult to drill can be easily used as the sound insulation plate.

  In addition, if a shock absorbing member is mounted between the mounting member and the recessed portion of the concave groove, a force that can be pulled out of the concave groove due to a collision of a vehicle or the like is applied to the sound insulation board. Since the shock that peels off the mounting member from the sound insulating plate received from the retaining portion is alleviated by the buffer member, the mounting member attached to the sound insulating plate is difficult to come off, and the falling off of the sound insulating plate from the frame body is suppressed. Therefore, it is preferable.

  In addition, the mounting member is formed with a protruding piece projecting toward the retaining portion, and an engaging portion is formed at the retaining portion so that the projecting piece of the mounting member pulled toward the retaining portion is If the buffer member is formed so as to be engageable with the engaging portion, the engagement of the mounting member and the retaining portion prevents the sound insulating plate from coming out of the concave groove, and the sound insulating plate This is preferable because dropping from the frame is further suppressed.

Further, the retaining portion is formed at one opening edge of the concave groove, and the buffer member is disposed in a gap between the sound insulating plate and the mounting member and the wall surface of the concave groove, Is attached to one opening edge of the concave groove and the other end is attached to a retaining portion formed on the other opening edge of the concave groove so as to wrap around the end of the sound insulating plate. Since the shock to the mounting member, which is given by contacting the wall surface of the groove other than the engaging portion, is alleviated by the buffer member disposed therebetween, the falling off of the mounting member from the sound insulating plate is suppressed.
In addition, an impact on the sound insulating plate due to contact between the sound insulating plate and the groove wall surface is suppressed by the buffer member disposed therebetween, and damage to the sound insulating plate is suppressed.

  Further, if a plurality of the mounting members are attached to the sound insulation plate, and the respective attachment members are attached to the sound insulation plate at intervals, a vehicle or the like collides with the sound insulation plate, and some of the attachment members are sound insulation plates. Even if it is peeled off from the frame, the sound insulation plate is held on the frame by another mounting member, and therefore, complete removal of the sound insulation plate from the frame is suppressed, which is preferable.

  In addition, when the mounting member is attached to the edge of the upper side and the lower side of the sound insulation plate, and a larger number of attachment members are attached to the edge of the upper side than the edge of the lower side, in fixing the sound insulation plate and the frame body The fixing with the frame member with the upper edge inserted is stronger than the fixing with the frame member with the lower edge inserted. For this reason, the sound insulation board inserts the edge of the upper side even when a strong force is applied that causes the sound insulation board to completely come off from the frame material where the edge of the lower side is inserted due to a vehicle collision, etc. It can be expected that the sound insulation plate is prevented from being completely detached from the frame body.

  According to the soundproof panel according to the present invention, the sound insulating plate attached to the frame body without providing a screwing attachment hole or the like is not easily detached from the frame body.

BRIEF DESCRIPTION OF THE DRAWINGS (b) is a top view and (b) is a front view which shows one Embodiment of the soundproof panel which concerns on this invention. It is AA sectional drawing of FIG. It is a figure which shows the sound insulation board of FIG. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is CC sectional drawing of FIG.

Embodiments of the present invention will be specifically described with reference to the drawings.
In the drawing, reference numeral 1 denotes a soundproof panel.
The soundproof panel 1 according to the present embodiment includes a frame composed of a light-transmitting sound insulating plate 3 formed in a rectangular plate shape, and four frame members 2 respectively attached to four sides of the sound insulating plate 3. I have.

The frame material 2 of this embodiment is formed from a hollow long mold material having a substantially rectangular cross section, and is formed by extrusion molding of an aluminum alloy.
Further, a concave groove 21 is formed on one side surface of the frame member 2 along the length direction.
The frame member 2 includes an upper frame 2A, a lower frame 2B, a left frame 2C, and a right frame 2D that are respectively attached to the upper, lower, left and right sides of the sound insulating plate 3. These four frame members 2 are arranged on the four sides of the sound insulating plate 3. The frame body is formed by attaching and fixing the ends of each other by fixing means such as bolts, nuts and rivets.

The sound insulation plate 3 of this embodiment is formed of a glass plate. Specifically, the sound insulating plate 3 is formed in a structure in which a synthetic resin layer 32 for preventing fragment scattering is sandwiched between two glass plates 33 formed in the same rectangular shape, and prevents the fragment scattering. The synthetic resin layer 32 for use is provided over the entire surface of each glass plate 33.
The sound insulating plate 3 of the present embodiment is formed of a glass plate, but is not limited thereto, and an acrylic resin plate, a polycarbonate resin plate, a rigid polyvinyl chloride plate, or the like is used as a light-transmitting plate material. In the case where translucency is not necessary, a synthetic resin, a metal plate, or the like can be preferably used, and a functional member such as a solar cell panel can be further used.

2 is a cross-sectional view taken along the line AA in FIG.
FIG. 2 shows a structure for attaching the sound insulating plate 3 to the left frame 2C, and the sound insulating plate 3 is attached by inserting the left edge 31 thereof into the concave groove 21 of the left frame 2C.
The concave groove 21 has a tongue piece 22 projecting inwardly at one of opposing opening edges, and a pushing edge 24 inserted into the bag groove 23 projecting inwardly at the other opening edge. The concave groove 21 is formed in a dovetail shape in which the groove width of the opening edge portion where the tongue piece 22 and the pushing edge 24 are formed is narrower than the back side.
Further, the tongue piece 22 and the pushing edge 24 projecting inwardly from the concave groove 21 are formed in a shape in which each tip is bent toward the back side of the concave groove 21.

The buffer member 4 is attached to the inside of the concave groove 21.
The buffer member 4 is formed in a substantially U-shaped cross-sectional shape, and the length in the longitudinal direction is the length over the entire length of the edge 31 of the sound insulating plate 3 inserted into the groove 21. It is attached so that it may be arrange | positioned between the inner wall surface and the sound insulation board 3. FIG.
Further, the buffer member 4 of the present embodiment has one end of the substantially U-shaped cross section attached to the tongue piece 22 of the concave groove 21 and the other end attached to the push edge 24. Is attached so as to cover the entire edge 31 of the sound insulating plate 3 inserted into the groove 21. By attaching the buffer member 4 in this way, the transmission of an impact or the like to the edge 31 of the sound insulating plate 3 due to the contact with the inner wall surface of the concave groove 21 is mitigated, so that the vehicle or the like contacts the soundproof panel 1. Then, when a force such as an impact is applied to the soundproof panel 1, breakage of the edge 31 of the sound insulating plate 3 is suppressed.

A groove-like recess 41 is formed at the end of the buffer member 4 attached to the tongue piece 22 of the concave groove 21 over the entire length in the longitudinal direction, and the tip of the tongue piece 22 is inserted into the recess 41. Thus, the end of the buffer member 4 is attached to the tongue piece 22.
Further, a groove-like recess 42 is formed at the other end of the buffer member 4 over the entire length in the longitudinal direction, and the tip of the pressing edge 24 is inserted into the recess 42 so that the buffer member 4 The end is attached to the pushing edge 24.
Even if the frame member 2 and the sound insulating plate 3 are displaced due to the external force applied to the sound insulating panel 1 or deformation due to thermal expansion of the sound insulating plate 3 or the frame member 2 by being formed in this way. The buffer member 4 is unlikely to come off the concave groove 21.
The groove width of the opening edge of the concave groove 21 in which the tongue piece 22 and the pushing edge 24 are formed is such that the inner side of both ends of the cushioning member 4 attached to the tip of each of the sound insulating plates 3 is inserted with an edge portion. It is formed in the size which touches both sides.
In addition, the mounting structure of the sound insulating plate 3 to the right frame 2D is a structure in which the mounting structure to the left frame 2C is reversed left and right.

FIG. 3 is a view showing the sound insulating plate 3 of FIG.
The sound insulating plate 3 according to the present embodiment is a rectangular light-transmitting plate in which a synthetic resin layer 32 is sandwiched between two glass plates 33, and a cushioning material S made of an elastic material is provided at the upper and lower ends thereof. A total of 4 stickers are attached.
Moreover, the elongate attachment member 5 is attached to one board surface of the sound insulation board 3 of this embodiment.
Four attachment members 5 are attached along the upper side of the sound insulation plate 3 with the longitudinal direction thereof turned sideways, and two attachment members 5 are attached along the lower side, and a total of six attachment members 5 are attached to the sound insulation plate 3.

4 is a cross-sectional view taken along the line AA in FIG.
The attachment member 5 of the present embodiment is formed in a substantially rectangular cross-sectional shape, and is attached with its one surface abutting against the plate surface of the sound insulating plate 3. Specifically, the mounting member 5 of the present embodiment is adhered to the sound insulating plate 3 by an adhesive material T made of double-sided tape, and without mounting holes such as screw holes for screwing the sound insulating plate 3. Is attached.
The attachment member 5 of the present embodiment is adhered to the sound insulating plate 3 with the adhesive material T, but is not limited thereto, and may be bonded with an adhesive.

The mounting member 5 is formed with a projecting piece 51 protruding in the direction along the plate surface of the sound insulating plate 3 over the entire length in the longitudinal direction.
Specifically, the protruding piece 51 is formed at a distance from the plate surface of the sound insulating plate 3. Specifically, the protruding member 51 protrudes from the opposite side of the sound insulating plate 3 attached to the mounting member 5. A protrusion 52 is formed, and the protrusion 51 protruding from the protrusion 52 in a direction along the plate surface of the sound insulating plate 3 is formed.
The protruding pieces 51 of the mounting members 5 are provided so as to protrude toward the inner side of the sound insulating plate 3.
That is, the projecting piece 51 of the mounting member 5 shown in FIG. 4 attached in the vicinity of the upper side of the sound insulating plate 3 is provided so as to protrude downward, which is the inner direction of the sound insulating plate 3. The two attachment members 5 attached in the vicinity of the lower side are attached upside down with respect to the embodiment shown in FIG. 4, and the projecting pieces 51 are directed upward, which is the inner direction of the sound insulating plate 3. Each is provided so as to protrude.

5 is a cross-sectional view taken along the line BB of FIG. 1, and FIG. 6 is a cross-sectional view taken along the line CC of FIG.
The concave groove 21 that opens downward in the upper frame 2A and the concave groove 21 that opens upward in the lower frame 2B are formed in a dovetail shape like the left frame 2C and the right frame 2D. In addition, the tongue piece 22 is projected inwardly at one of the opposed opening edges, and the pushing edge 24 inserted into the bag groove 23 is projected inwardly at the other opening edge. The tongue piece 22 and the tip of the pushing edge 24 are each formed in a shape that bends toward the back side of the concave groove 21.

Further, as in the case of the left frame 2C and the right frame 2D, a substantially U-shape having a size over the entire length of the edge 31 of the sound insulating plate 3 is formed inside the concave grooves 21 of the upper frame 2A and the lower frame 2B. The shock-absorbing member 4 formed in the cross section is attached so as to be disposed between the inner wall surface of the concave groove 21 and the sound insulating plate 3 and the attachment member 5.
The shock-absorbing member 4 of the present embodiment is attached by inserting the tip of the tongue piece 22 of the groove 21 into the groove-shaped recess 41 formed at one end and the groove-shaped recess formed at the other end. 42, the tip of the pushing edge 24 of the groove 21 is inserted and attached, and the buffer member 4 is attached so as to cover the entire edge 31 of the sound insulating plate 3 including the attachment member 5 inserted into the groove 21. Yes.
By attaching the buffer member 4 in this way, damage to the edge 31 of the sound insulating plate 3 due to contact with the inner wall surface of the groove 21 is suppressed as in the case of the left frame 2C and the right frame 2D.
Further, by mounting the buffer member 4 between the mounting member 5 attached to the sound insulating plate 3 and the inner wall surface of the groove 21, an impact on the mounting member 5 due to contact with the inner wall surface of the groove 21. Is reduced, and when a force such as an impact is applied to the soundproof panel 1, the occurrence of a problem that the mounting member 5 falls off the sound insulating plate 3 is suppressed.

The groove width of the opening edge of each concave groove 21 of the upper frame 2A and the lower frame 2B is the buffer attached to the tip of the tongue piece 22 and the push edge 24, respectively, like the concave groove 21 of the left frame 2C and the right frame 2D. The inside of the both ends of the member 4 is formed in such a size as to contact both surfaces of the sound insulating plate 3 into which the edge portion 31 is inserted.
In the present embodiment, the tongue piece 22 functions as the retaining portion 25 in the tongue piece 22 and the pressing edge 24 provided with the groove width of the recess 21 narrower than the back side.

  The attachment member 5 attached to the plate surface of the sound insulating plate 3 is housed inside the concave groove 21. When a force is applied to pull out the sound insulation plate 3 from the frame body, for example, when the vehicle collides with the sound insulation panel 1, the mounting member 5 is caught by the retaining portion 25 formed by the tongue piece 22, and the sound insulation plate 3 The upper frame 2 </ b> A and the lower frame 2 </ b> B are provided so as to suppress dropping from the respective concave grooves 21.

In the concave groove 21 of the upper frame 2 </ b> A, the tongue piece 22 and the tip of the pushing edge 24 are formed in a shape that bends toward the back side of the concave groove 21, that is, upward, and is mounted in the concave groove 21. The protruding piece 51 formed on the member 5 is provided so as to protrude inward of the sound insulating plate 3, that is, downward.
For this reason, when the force which pulls out the sound insulation board 3 from the upper frame 2A is given, the lower surface of the attachment member 5 on which the projecting piece 51 is formed has the retaining portion 25 composed of the tongue piece 22 bent upward. Since the buffer member 4 is engaged and caught on the upper surface of the engaging portion 26 formed in a concave shape at the base, the sound insulating plate 3 is more difficult to drop out from the concave groove 21 of the upper frame 2A.
For example, even when a force for pulling out the sound insulating plate 3 from the upper frame 2A is applied and at the same time, a force is applied to widen the groove width of the concave groove 21, the mounting member 5 and the tongue piece 22 on which the protruding piece 51 is formed. Can be prevented from falling off the upper frame 2A of the sound insulating plate 3.

In the concave groove 21 of the lower frame 2B, the tongue piece 22 and the tip of the pushing edge 24 are formed in a shape that bends toward the back side of the concave groove 21, that is, downward, and is mounted in the concave groove 21. The projecting pieces 51 formed on the member 5 are provided so as to project inwardly of the sound insulating plate 3, that is, upward.
For this reason, when the force which pulls out the sound insulation board 3 from the lower frame 2B is given, the upper surface of the attachment member 5 on which the projecting piece 51 is formed of the retaining portion 25 formed of the tongue piece 22 bent downward. Since the buffer member 4 is engaged with the lower surface while being bent, the sound insulating plate 3 is more unlikely to drop out of the concave groove 21 of the lower frame 2B, as in the case of the upper frame 2A.

Moreover, although the said sound-insulating board 3 of this embodiment attaches the said attachment member 5 only to the one board surface, you may attach to both surfaces of the sound-insulating board 3 without restricting to this. For example, the mounting member 5 is attached to both surfaces of the sound insulating plate 3, and this is housed inside the concave groove 21 of the upper frame 2 </ b> A or the lower frame 2 </ b> B, and the force to pull out the sound insulating plate 3 from the concave groove 21 is given. Sometimes, each attachment member 5 can be provided so as to be caught by the retaining portion 25 composed of the tongue piece 22 and the pushing edge 24.
Further, each of the mounting members 5 is provided with a protruding piece 51 protruding inward of the sound insulating plate 3, and the tongue piece 22 and the pushing edge 24 whose front ends are bent toward the back side of the concave groove 21 are attached as the retaining portions 25. It may be provided so that the member 5 can be engaged.

Moreover, although the sound insulation board 3 of this embodiment attaches the said attachment member 5 only to upper side and lower part vicinity, and is accommodated in each concave groove 21 of 2 A of upper frames, and 2 B of lower frames, it is not restricted to this. .
For example, the attachment member 5 may be attached along the left side or the right side of the sound insulating plate 3 and stored in the groove 21 of the left frame 2C or the right frame 2D.
By providing in this way, in the concave groove 21 of the left frame 2C and the right frame 2D, the tongue piece 22 and the pushing edge 24 function as a retaining portion 25, and a force is given to pull out the sound insulating plate 3 from the concave groove 21. In this case, the attachment member 5 is caught by the retaining portion 25, and the sound insulation plate 3 can be prevented from falling off.

As shown in FIG. 3, the sound insulating plate 3 of the present embodiment has four attachment members 5 attached near the upper side and two attachment members 5 attached near the lower side.
Specifically, the four attachment members 5 attached in the vicinity of the upper side of the sound insulation plate 3 are attached over substantially the entire length of the upper side of the sound insulation plate 3 with an interval smaller than the length in the longitudinal direction of the attachment member. The two attachment members 5 attached in the vicinity of the lower side are attached in the vicinity of the left and right ends of the lower side of the sound insulating plate 3, respectively.
By attaching the mounting member 5 in this way, the sound insulating plate 3 is more firmly fixed to the upper frame 2A than the lower frame 2B and is difficult to drop off, so that the sound insulating plate 3 is pulled out from the frame. Even when a strong force is applied such that when the force is applied, the sound insulation plate 3 is completely removed from the lower frame 2B and is removed, the sound insulation plate 3 does not fall off the frame body in a state where it is suspended from the upper frame 2A. Can be expected.

In addition, since the two mounting members 5 are attached near the left and right ends of the lower side of the sound insulating plate 3 near the lower side of the sound insulating plate 3, the sound insulating plate 3 is fixed to the lower frame 2B near the left and right ends rather than the center. It is fixed more firmly.
For this reason, when a vehicle or an article collides with the sound insulation plate 3 of the sound insulation panel 1 and the sound insulation plate 3 is deformed, the sound insulation plate 3 is fixed in the vicinity of the left and right ends of the lower frame 2B, but the sound insulation plate 3 is recessed in the vicinity of the center. It can be expected that the inhibition of the deformation of the sound insulating plate 3 due to being pulled out from 21 and fixed to the lower frame 2B is made smaller.
By making the inhibition of the deformation of the sound insulating plate 3 smaller, it is possible to absorb the impact received from the vehicle or the article that the sound insulating plate 3 is deformed more greatly and collide, and to suppress the damage of other parts of the sound insulating panel 1. I can expect. In addition, since the sound insulating plate 3 is held by the frame near the left and right ends of the upper side and the lower side, it can be expected that the complete removal of the sound insulating plate 3 from the frame is suppressed.

  Since the soundproof panel 1 of this embodiment attaches the attachment member 5 to the plate surface of the sound insulation plate 3 with an adhesive or an adhesive material, a glass plate, a solar battery panel, or the like as in this embodiment in which drilling is relatively difficult. Can be easily used as the sound insulating plate 3. Further, since the hole is not formed in the sound insulating plate 3, when the solar cell panel is used for the sound insulating plate 3, water or the like enters the inside of the solar cell panel from the perforated hole and impedes its power generation function. Problems are less likely to occur.

DESCRIPTION OF SYMBOLS 1 Soundproof panel 2 Frame material 2A Upper frame 2B Lower frame 2C Left frame 2D Right frame 21 Concave groove 22 Tongue piece 23 Bag groove 24 Push edge 25 Stopping part 26 Engagement part 3 Sound insulation board 31 Edge part 32 Synthetic resin layer 33 Glass Plate 4 Buffer member 41 Recess 42 Recess 5 Mounting member 51 Projection piece 52 Projection S Buffer material T Adhesive material

Claims (6)

A sound insulation panel comprising a rectangular sound insulation plate and a frame body made of a frame member attached to each of the four sides of the sound insulation plate,
The frame member is formed with a concave groove into which an edge of the sound insulating plate is inserted, and the concave groove is formed in a dovetail shape in which a retaining portion protruding inward of the concave groove is formed on the opening side. Has been
A soundproof panel, wherein a mounting member is attached to an edge of the sound insulating plate without attaching a mounting hole to the sound insulating plate. The soundproof panel according to claim 1, wherein a buffer member disposed between the attachment member and the retaining portion is attached.   The mounting member is formed with a projecting piece projecting toward the retaining portion, and an engaging portion is formed at the retaining portion, and the projecting piece of the mounting member pulled toward the retaining portion is The soundproof panel according to claim 2, wherein the soundproof panel is formed so as to be engageable with the engaging portion with the buffer member interposed therebetween. The retaining portion is formed at one opening edge of the concave groove,
The buffer member is disposed in a gap between the sound insulating plate and the mounting member and the wall surface of the groove, and one end is attached to a retaining portion formed at one opening edge of the groove. The soundproof panel according to any one of claims 2 to 3, wherein the other end is attached to the other opening edge of the groove so that the other end wraps around the end of the sound insulating plate.   5. The soundproof panel according to claim 1, wherein a plurality of the attachment members are attached to the sound insulation plate, and each attachment member is attached to the sound insulation plate with a space therebetween. .   6. The mounting member according to claim 5, wherein the mounting member is mounted on each of the upper and lower edges of the sound insulating plate, and more mounting members are mounted on the upper edge than the lower edge. Soundproof panel as described.

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