Soundproofing panels

Abstract

To provide a soundproofing panel that can effectively seal the gap between the support column and the panel. [Solution] A gap-filling portion made of an elastic member that protrudes in the longitudinal direction and abuts against the support column is formed on each vertical frame of the soundproof panel installed between the support columns, extending over substantially the entire length in the longitudinal direction, and a narrow portion is provided in the longitudinally protruding part of the gap-filling portion where the width is smaller than the length of the protrusion in the longitudinal direction. Since the gap-filling portion has a narrow section, even if there are fluctuations such as an increase in the distance between the vertical frame and the support column, the gap-filling portion deforms to flex in the width direction at the narrow section, effectively filling the gap between the support column and the vertical frame.

Description

Technical Field

[0001] The present invention relates to a soundproof panel installed between columns to construct a soundproof wall or the like.

Background Art

[0002] A soundproof panel installed between columns erected at intervals in the longitudinal direction is often used as a member for constructing a soundproof wall or the like. For the purpose of effectively blocking and reducing noise with a soundproofing board or sound-absorbing material, it is preferable that the gap between the soundproof panel and the column is smaller, and various configurations have been proposed.

[0003] For example, in Patent Document 1, a wall panel is attached between columns provided at intervals, and the wall panel includes a rectangular panel body and vertical frames attached to opposite left and right end portions of the panel body. The vertical frame is formed with a groove portion that opens toward the column along the vertical direction, and an inner portion of an elastic body is inserted along the vertical direction of the groove portion, and an outer portion of the elastic body is press-fitted to the side surface of the column. A configuration of a wall characterized by this has been proposed by the applicant of the present application.”

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] Although the wall in Patent Document 1 is provided with an elastic body 8 between the wall panel 2 attached via the joint 6 and the column 1 to close the gap, a soundproof panel that can effectively close the gap even when attached to the column without using a joint is provided.

Means for Solving the Problems

[0006] To achieve the above objective, the present invention has the following configuration. In other words, the soundproofing panel according to this invention is a soundproofing panel that is installed between support columns that are erected at intervals in the longitudinal direction, and the soundproofing panel comprises a rectangular sound-insulating plate and vertical frames attached to both edges of the sound-insulating plate, and each vertical frame has a gap-filling portion made of an elastic member that protrudes in the longitudinal direction and abuts against the support columns, extending over substantially the entire length in the longitudinal direction, and the gap-filling portion is characterized in that the width of the portion that protrudes in the longitudinal direction is smaller than the width of the protrusion in the longitudinal direction.

[0007] The soundproofing panel according to the present invention comprises a rectangular sound-insulating panel and vertical frames attached to both edges of the sound-insulating panel. Each of these vertical frames has a gap-sealing portion made of an elastic member that protrudes in the longitudinal direction and abuts against a support column, extending over substantially the entire length in the longitudinal direction. Thus, the sound-insulating panel blocks and reduces noise, and the gap-sealing portion seals the gap between the soundproofing panel and the support column, thereby blocking the passage of noise. Furthermore, since the gap-filling portion has a narrow section in the longitudinal direction where it protrudes, the width of the gap-filling portion is smaller than the width of the longitudinally protruding portion. Therefore, even if there are fluctuations such as an increase in the distance between the vertical frame and the support column, the gap-filling portion deforms by bending in the width direction at the narrow section, effectively filling the gap between the support column and the vertical frame.

[0008] The soundproofing panel may have sound-absorbing material arranged in the width direction of the sound insulation board.

[0009] Furthermore, the soundproofing panel may have an upper frame and a lower frame attached to the top and bottom of the sound insulation board, respectively, with the ends of the vertical frames positioned towards the ends of the longitudinal ends of the upper and lower frames.

[0010] Alternatively, the vertical frame may comprise an inner frame portion and an outer frame portion that is larger in the vertical direction than the inner frame portion, with the inner frame portion, which is attached to the edge of the sound insulation panel, positioned between the upper and lower frames, and the upper and lower ends of the outer frame portion, to which the gap-filling material constituting the gap-filling portion is attached, positioned towards the ends of the longitudinal ends of the upper and lower frames.

[0011] Alternatively, the inner frame portion and the outer frame portion may be formed separately, an engaging portion may be formed on one of the inner frame portion and the outer frame portion, an engaging receiving portion may be formed on the other, and the engaging portion and the engaging receiving portion may be engaged to constitute the vertical frame.

[0012] Further, the portions of the gap blocking portion protruding in the longitudinal direction may be arranged with a gap of two in the width direction.

Advantages of the Invention

[0013] According to the sound insulation panel of the present invention, the gap between the support column and the vertical frame of the sound insulation panel can be effectively blocked by the gap blocking portion that deflects and deforms in the width direction at the narrow width portion.

Brief Description of the Drawings

[0014] [Figure 1] It is a front view showing an embodiment of the sound insulation panel of the present invention. [Figure 2] It is a right side view of FIG. 1. [Figure 3] It is a plan view of FIG. 1 [Figure 4] It is an enlarged view of a part of FIG. 3. [Figure 5] It is an enlarged view of a part of the A-A cross section of FIG. 1. [Figure 6] It is a front view of the upper frame of FIG. 1. <^ [Figure 7] It is a plan view of FIG. 6. [Figure 8] It is a right side view of FIG. 7. [Figure 9] It is an enlarged view of a part of the B-B cross section of FIG. 1. [Figure 10] It is a front view of the vertical frame of FIG. 1. [Figure 11] It is a plan view of FIG. 10. [Figure 12] It is a view showing a state where the inner frame portion, the outer frame portion, and the gap blocking material in FIG. 11 are separated. [Figure 13] It is a perspective view showing an embodiment of the support column for attaching the sound insulation panel of FIG. 1. [Figure 14]It is a front view of FIG. 13. [Figure 15] It is a right side view of FIG. 13. [Figure 16] It is a plan view of FIG. 13. [Figure 17] It is a front view showing the state where the support column shown in FIG. 14 is installed on the installation surface. [Figure 18] It is a front view showing the state where the sound insulation member is attached to the support column of FIG. 17. [Figure 19] It is a front view of the sound insulation member of FIG. 18. [Figure 20] It is a right side view of FIG. 19. [Figure 21] It is a sectional view taken along the line A - A of FIG. 18. [Figure 22] It is a front view showing the state where the soundproof panel of FIG. 1 is attached to the support column of FIG. 20. [Figure 23] It is a sectional view taken along the line A - A of FIG. 22. [Figure 24] It is a view seen in the direction of the arrow B - B of FIG. 22. [Figure 25] It is a view showing the state where a fixing member is attached between the support column and the soundproof panel of FIG. 23.

Embodiments for Carrying Out the Invention

[0015] Embodiments of the present invention will be described based on the drawings. In the drawings, 1 is a soundproof panel. In FIG. 1, the illustration of the through - hole 11a described later is partially omitted to simplify the drawing. The soundproof panel 1 has a rectangular frame body in which vertical frames 3 are respectively connected to the longitudinal ends of the upper frame 2A and the lower frame 2B, and a front panel 11 and a back panel 12 are arranged inside this frame body to form a rectangular box shape. Hereinafter, the description will be made with the left - right direction in the drawing of FIG. 1 as the longitudinal direction, the up - down direction in the drawing as the vertical direction, and the direction perpendicular to the longitudinal direction and the vertical direction as the width direction.

[0016] Each vertical frame 3 is provided with a gap - filling material 6. The gap - filling material 6 is formed such that a part thereof protrudes in the longitudinal direction from the vertical frame 3 to form a gap - filling portion.

[0017] Figure 5 is an enlarged view of a portion of the AA cross-section in Figure 1. Figure 5 shows a magnified view of the upper part of soundproof panel 1. The soundproof panel 1 has sound-absorbing material 13 installed between the front panel 11 and the back panel 12, and is designed to attenuate noise entering the inside of the soundproof panel 1 through numerous circular through-holes 11a formed over almost the entire surface of the front panel 11. The back panel 12 is a sound-insulating panel and functions to block noise from the front panel 11 side. The front panel 11 and the back panel 12 are rectangular plate-like bodies formed from a composite material of metal and synthetic resin. Specifically, they are composite panels in which aluminum alloy plates are bonded to the entire surface of both sides of a synthetic resin plate. Furthermore, a sound-insulating auxiliary plate 14 made of plated steel sheet is attached to substantially the entire inner surface in the width direction of the back panel 12, thereby improving sound insulation performance.

[0018] The upper frame 2A is a long body formed from an extruded aluminum alloy profile, with the cross-section having the same shape along its entire length. The upper frame 2A is provided in a roughly rectangular cylindrical shape with a hollow portion 20 on the inside, and has grooves 21 that open inward in the vertical direction. Two grooves 21 are formed with a gap in the width direction, and the end of the front plate 11 is inserted into one groove 21, and the end of the back plate 12 is inserted into the other groove 21 to attach them.

[0019] Figure 6 is a front view of the upper frame 2A of Figure 1, Figure 7 is a top view of Figure 6, and Figure 8 is a right side view of Figure 7. The upper frame 2A is equipped with a trim piece 25, which is attached to the inside of the groove 21. An engagement groove 21a is formed on the inner surface near the opening edge of the groove 21, and an engagement projection 26 is formed on the trim piece 25 that corresponds to the shape of the engagement groove 21a. The trim piece 25 is attached to the inside of the groove 21 by inserting and engaging the engagement projection 26 into the engagement groove 21a.

[0020] The upper frame 2A has screw grooves 23 with an inner cross-sectional shape that is approximately circular. The screw grooves 23 have a cross-sectional shape that is approximately C-shaped, and are provided at the longitudinal end to form a so-called screw hole into which the male threaded portion of a screw can be screwed in from the outside. One screw groove 23 is formed near the base of each groove portion 21, and one screw groove 23 is formed on each of the trim pieces 25. In other words, when the trim pieces 25 are attached, a total of four screw grooves 23 are formed on the upper frame 2A.

[0021] Returning to Figure 5, by attaching the trim strip 25 so as to narrow the groove width near the opening of the groove 21, the movement of the front plate 11 and the back plate 12 in the width direction is restricted, vibration of the front plate 11 and the back plate 12 is suppressed, and detachment from the groove 21 is prevented. A retaining member R, made of a metal plate that protrudes in the width direction from the plate surface, is attached to the end of the front plate 11 which is inserted into the groove 21. This retaining member R abuts against the retaining edge 25, effectively preventing the front plate 11 from coming out of the groove 21. In addition, a retaining member (not shown), made of a rivet that penetrates the back plate 12, is attached to the end of the back plate 12 which is inserted into the groove 21, and prevents the back plate 12 from coming out of the groove 21 in the same way as the retaining member R. Furthermore, the lower frame 2B is formed to have the same cross-sectional shape as the upper frame 2A, but is positioned with its orientation reversed. The front panel 11 and the back panel 12 are attached to it in the same way as the upper frame 2A shown in Figure 5.

[0022] Figure 9 is an enlarged view of a portion of the BB cross-section in Figure 1. Figure 9 shows an enlarged view of the area around the vertical frame 3 on the right side of Figure 1. The vertical frame 3 has an inner frame portion 4 and an outer frame portion 5, which are formed separately, and the inner frame portion 4, which is positioned on the inside in the longitudinal direction, and the outer frame portion 5, which is positioned on the outside, are integrated by engagement. The inner frame 4 and the outer frame 5 are elongated bodies formed from extruded aluminum alloy profiles, and each has the same cross-sectional shape along its entire length in the vertical direction.

[0023] Figure 10 is a front view of the vertical frame 3 in Figure 1, Figure 11 is a top view of Figure 10, and Figure 12 shows the inner frame 4, outer frame 5, and gap-filling material 6 of Figure 11 separated. Figure 10 shows the vertical frame 3 positioned on the right side in Figure 1. The inner frame portion 4 of the vertical frame 3 is formed in a roughly rectangular cylindrical shape with a hollow portion on the inside, and an engaging portion 43 that engages with the outer frame portion 5 is formed on the base portion 40 which constitutes the outer end in the longitudinal direction. The engaging portion 43 is provided with a ridge-like outer shape that protrudes outward in the longitudinal direction, and the protruding tip is formed to be wider than the base. Furthermore, the inner frame portion 4 has grooves 41 that open inward in the longitudinal direction, and two grooves 41 are arranged with a gap between them in the width direction. Each groove 41 is provided so that the ends of the front plate 11 and the back plate 12 are inserted into and attached to it.

[0024] The outer frame portion 5 of the vertical frame 3 is formed in a roughly U-shape in cross-section, having a base portion 50 that constitutes the inner end in the longitudinal direction, and substantially flat extension portions 51 that extend outward in the longitudinal direction from both ends of the base portion 50 in the width direction, and a cylindrical portion 52 between each extension portion 51 in which the base portion 50 is part of the cylindrical wall. The base portion 50 has an engaging portion 53 that can engage with the engaging portion 43. The engaging portion 53 is provided in the shape of a recessed groove into which the engaging portion 43 can be inserted, and is formed in the shape of a bag groove, with the groove width near the opening being narrower than the width at the back. In other words, the bag groove-shaped engaging portion 53 functions as an engaging receiving portion that engages with the engaging portion 43 of the inner frame portion 4. The inner frame portion 4 is attached integrally to the outer frame portion 5 by inserting its engaging portion 43 into the inside of the engaging portion 53 of the outer frame portion 5 from its vertical end, and bringing the base portion 40 into contact with the base portion 50. Furthermore, although the vertical frame 3 has an engaging portion 43 of the inner frame portion 4 formed in a ridge shape and an engaging portion 53 of the outer frame portion 5 formed in a groove shape, the engaging portion 43 may be provided in a groove shape that functions as an engaging receiving portion, and the engaging portion 53 may be provided in a ridge shape that can engage with the engaging portion 43, or the engaging portion 43 and the engaging portion 53 may be formed in other shapes that function as an engaging portion and an engaging receiving portion.

[0025] The outer frame portion 5 has an engaging portion 56 formed at its longitudinally outer end. The engaging portion 56 is a recessed groove formed in the cylindrical portion 52, and is formed in a bag-shaped groove with a narrower groove width near the opening than towards the back. The engaging portion 56 is also formed to have a screw insertion portion 56a with a substantially circular cross-section that constitutes a so-called screw hole into which the male threaded portion of a screw can be screwed in from the outside of the vertical end at the opening.

[0026] The gap-filling material 6 is a long, elongated body made of an elastic material, and is made of an olefin-based elastomer. The gap-filling material 6 has a cross-section that is the same shape along its entire length and includes an engaging portion 66 that can engage with the engaging portion 56, and a shielding portion 61 that extends longitudinally outward from the engaging portion 66. The engaging portion 66 is formed to have an outer shape corresponding to the inner shape of the engaging portion 56. By inserting it inward from the vertical end of the engaging portion 56 and engaging it, it is prevented from coming loose in the longitudinal direction and is attached to the outer frame portion 5. Furthermore, when the engaging portion 66 is engaged with the engaging portion 56, the male threaded portions of the screws B1 are screwed into the inside of the screw insertion portion 56a from both the outer and vertical sides, thereby restricting the vertical movement of the gap-filling material 6 and preventing it from coming loose from the outer frame portion 5.

[0027] The shielding portion 61 of the gap-filling material 6 is formed in the shape of a vertically elongated rectangular flat plate, and two of them are provided extending from the engaging portion 66. Specifically, in a plan view, the shielding portion 61 extending inclined toward one side in the width direction from the engaging portion 66 and the shielding portion 61 extending inclined toward the other side in the width direction are arranged in a roughly V-shape. Specifically, each of the shielding portions 61 is formed in a roughly rectangular flat plate shape with a thickness of 2 mm in the width direction and a projection of 30 mm in the longitudinal direction. Each shielding portion 61 is formed of a highly flexible olefin-based elastomer, so it easily undergoes elastic deformation to bend significantly when subjected to external force. Although the material forming the gap-filling material 6 is made of an olefin-based elastomer, it is not limited to this, and other elastic materials such as thermoplastic resin elastomers other than polyolefins, thermosetting resin elastomers, natural rubber, and synthetic rubber can be selected or combined to suitably utilize. Each of the shielding portions 61 is provided to constitute the gap-closing portion.

[0028] As shown in Figure 10, the vertical frame 3 has an outer frame portion 5 that is larger than the inner frame portion 4 in the vertical direction, and the ends of the outer frame portion 5 are positioned to protrude above the upper end and below the lower end of the inner frame portion 4, respectively. The ends of the upper frame 2A and lower frame 2B are brought into contact with the base portions 50 of each of these protruding ends of the outer frame portion 5, and the male threads of screws (not shown) are screwed into the screw holes formed by the screw insertion grooves 23 of the upper frame 2A and lower frame 2B from the longitudinal outside of the base portion 50, thereby fixing the vertical frame 3 to the upper frame 2A and lower frame 2B. In other words, the outer frame portion 5 of the vertical frame 3 is positioned on the longitudinal outside of the upper frame 2A and lower frame 2B, and the inner frame portion 4 is positioned between the upper frame 2A and lower frame 2B.

[0029] Returning to Figure 9, the front panel 11 and the back panel 12 are attached to the inner frame 4 by inserting their ends into the grooves 41 of the inner frame 4. Furthermore, the vertical frame 3 on the left side of Figure 1 is the same shape as the vertical frame 3 shown in Figures 10-12, but is positioned with its left and right orientation reversed, and has the front panel 11 and back panel 12 attached in the same way as the vertical frame 3 shown in Figure 9.

[0030] Figure 13 is a perspective view showing one embodiment of the support column 7 to which the soundproof panel 1 of Figure 1 is attached, Figure 14 is a front view of Figure 13, Figure 15 is a right side view of Figure 13, and Figure 16 is a top view of Figure 13. The support column 7 has a base plate 79 that is installed on the installation surface G, and a column portion 70 that extends vertically upward from the base plate 79. The column portion 70 is formed in a roughly H-shape in cross-section, comprising a web portion 71 connected to the approximate center of the substrate 79, a first flange portion 72 connected to the front end of the web portion 71 in the width direction, and a second flange portion 73 connected to the rear end of the web portion 71 in the width direction. The second flange portion 73 is formed in a roughly rectangular flat plate shape and is positioned perpendicular to the substrate 79. The first flange portion 72 has a curved plate shape at its lower end, with the gap between it and the second flange portion 73 decreasing as it approaches the top, while near the top end, it is formed into a substantially flat plate shape with the gap between it and the second flange portion 73 being approximately the same size both vertically and horizontally. As shown in Figure 14, the first flange portion 72 is formed to have the same longitudinal size throughout its entire length from the upper end to the lower end, and similarly, the second flange portion 73 is formed to have the same longitudinal size as the first flange portion 72.

[0031] At the lower part of the support column 7, stepped portions 75 with a flat upper surface are formed on both sides in the longitudinal direction of the web portion 71. Each stepped portion 75 is formed in a substantially flat shape, protruding from the web portion 71 on both sides in the longitudinal direction, and its longitudinal size is the same as that of the second flange portion 73. Furthermore, the rear end of each stepped portion 75 is connected to the second flange portion 73. The upper surface of each stepped portion 75 is positioned parallel to the substrate 79, and is provided so that its upper surface is positioned parallel to the mounting surface G.

[0032] At the lower part of the support column 7, vertical plate sections 77 are formed on both sides of the web section 71. Each vertical plate portion 77 is formed in the shape of a rectangular flat plate with its surface oriented in the width direction, with its upper end positioned near the front end of the stepped portion 75 and its lower end connected to the substrate 79.

[0033] Each support column 7 has rectangular, flat contact portions 76 that protrude longitudinally on both sides of the web portion 71. Each contact portion 76 is arranged in a vertical plate shape with its plate surface facing the width direction, and is positioned parallel to the second flange portion 73. The distance between the plate surface of each contact portion 76 and the inner surface of the second flange portion 73 is formed to be larger than the width of the vertical frame 3 of the soundproof panel 1.

[0034] Figure 17 is a front view showing the support column 7 shown in Figure 14 installed on the installation surface G. As shown in Figure 17, each support column 7 is positioned at intervals corresponding to the longitudinal size of the soundproof panel 1, and the lower surface of the base plate 79 is in contact with the installation surface G, and it is fixed using anchor bolts (not shown) embedded and fixed in the installation surface G.

[0035] Figure 18 is a front view showing the sound-insulating member 8 attached to the support column 7 in Figure 17. The sound-insulating member 8 is installed to seal the gap between the soundproof panel 1, which is installed between the support columns 7, and the installation surface G, thereby preventing noise from passing from the front in the width direction to the rear.

[0036] Figure 19 is a front view of the sound-insulating member 8 shown in Figure 18, and Figure 20 is a right side view of Figure 19. The sound-insulating member 8 comprises a rectangular flat sound-insulating portion 82 arranged in a vertical plate shape with its lower end in contact with the installation surface G, and a rectangular flat base portion 81 extending backward in the width direction from the upper end of the sound-insulating portion 82. The base portion 81 also has a contact plate portion 81a extending upward at its rear end. The base portion 81 and the sound-insulating portion 82 are formed by bending a metal plate, specifically made of galvanized steel plate. At the lower end of the sound-insulating section 82, a long spacer 82a made of an elastic material with a rectangular cross-section is attached and installed along approximately its entire length in the longitudinal direction.

[0037] Figure 21 is a cross-sectional view of AA in Figure 18. The sound-insulating member 8 shown in Figures 18 and 21 has sound-insulating sections 82 positioned in front of the vertical plate sections 77 at both ends in the longitudinal direction, and its base 81 rests on the stepped sections 75 of each support column 7. The sound-insulating member 8's movement in the width direction is restricted by the contact of the sound-insulating sections 82 with the vertical plate sections 77. Furthermore, as shown in Figure 21, the gap between the sound-insulating part 82 and the installation surface G is sealed by an elastically deformable spacer 82a.

[0038] Figure 22 is a front view showing the soundproof panel 1 from Figure 1 attached to the support column 7 from Figure 20, and Figure 23 is a cross-sectional view AA of Figure 22. In Figure 23, the internal view of the soundproof panel 1 is omitted to simplify the drawing. In Figures 22 and 23, the soundproof panel 1 is installed between the support columns 7 by inserting each vertical frame 3 from above between the first flange portion 72 and the second flange portion 73, and placing the lower frame 2B on top of the stepped portion 75. The soundproof panel 1 attached to the support column 7 has its vertical frame 3 positioned between the first flange portion 72 and the second flange portion 73 at the top, thereby restricting movement in the width direction and preventing it from detaching from the support column 7. Furthermore, the soundproof panel 1 has its vertical frame 3 positioned between the contact portion 76 and the second flange portion 73 at the bottom, thereby restricting movement in the width direction and preventing it from detaching from the support column 7.

[0039] As shown in Figures 22 and 23, the sound-insulating member 8 has its base 81 sandwiched between the stepped portion 75 and the lower frame 2B of the soundproof panel 1, thereby restricting its movement. Furthermore, since the contact plate portion 81a of the sound-insulating member 8 is positioned behind the lower frame 2B, forward movement of the sound-insulating member 8 in the width direction can be prevented by contact between the contact plate portion 81a and the lower frame 2B. Furthermore, when the movement in the width direction to the rear is restricted by the contact between the sound insulation portion 82 and the vertical plate portion 77, the contact plate portion 81a of the sound insulation member 8 and the lower frame 2B come into contact, which is expected to have the effect of restricting the movement of the soundproof panel 1 to the rear in the width direction.

[0040] Figure 24 is a view taken along arrow BB in Figure 22. When attached to the support column 7, the gap-filling material 6 of the soundproof panel 1 is positioned to fill the gap between the outer frame portion 5 and the web portion 71 of the vertical frame 3. The gap-filling material 6 is designed so that each flat shielding portion 61 protruding in the longitudinal direction deforms significantly, and a part of its surface comes into contact with the surface of the web portion 71. By forming the gap-filling material 6 in this manner, even if errors occur in the spacing between each support column 7 or misalignment of the soundproofing panel 1 during construction, causing fluctuations in the distance between the web portion 71 and the vertical frame 3, the shielding portion 61 can deform to flex in the width direction, thereby sealing the gap between the web portion 71 and the vertical frame 3.

[0041] The gap-filling material 6 is preferable because, as shown in Figure 24, each shielding portion 61 can be easily deformed to bend in the width direction, with a projection of 30 mm in the longitudinal direction of the shielding portion 61 and a thickness of 2 mm in the width direction. The thickness of each shielding portion 61 is preferably 1% to 25% of the projection in the longitudinal direction, and more preferably 1% to 15%, in order to allow it to be easily deformed to bend in the width direction.

[0042] In the gap-filling material 6 of the soundproof panel 1, each shielding portion 61 that deforms to flex in the width direction is positioned between the first flange portion 72 and the second flange portion 73 of the support column 7. Therefore, strong winds from the width direction are blocked by the flange portions 72 and 73, preventing each shielding portion 61 from being directly hit, thus suppressing deformation of the shielding portion 61 due to wind, and allowing for a stable noise shielding effect from the shielding portion 61.

[0043] Figure 25 shows the state in which the fixing member F is attached between the support column 7 and the soundproof panel 1 in Figure 23. The fixing member F is a spring member, positioned between the vertical frame 3 and the second flange portion 73, with a portion of it in contact with the upper surface of the upper frame 2A. The upper end of the vertical frame 3 of the soundproof panel 1, which is biased by the fixing member F to move away from the second flange portion 73, is strongly pressed against the inner surface of the first flange portion 72, thereby suppressing vibrations and rattling of the soundproof panel when it is subjected to strong winds or vibrations from vehicles passing nearby.

[0044] As shown in Figures 1-5, the soundproof panel 1 has an upper frame 2A and a lower frame 2B attached to the top and bottom of a back panel 12 that functions as a sound insulation panel. The ends of the outer frame portions 5 of each vertical frame 3 are positioned and fixed to the ends of the longitudinal ends of the upper frame 2A and lower frame 2B. This allows the gap-filling material 6 attached to the outer frame portion 5 to be placed along the entire length of the vertical direction from the top to the bottom of the soundproof panel 1. By providing the gap-filling material 6 in this way, the gap between the vertical frame 3 and the web portion 71 of the support column 7 that occurs on the longitudinal side of the soundproof panel 1 can be effectively sealed by the shielding portion 61 of the gap-filling material 6, improving the sound insulation performance of the soundproof panel.

[0045] Furthermore, as shown in Figures 9 to 12, the vertical frame of the soundproof panel 1 comprises an inner frame portion 4 and an outer frame portion that is larger in the vertical direction than the inner frame portion. The inner frame portion 4, which is attached to the edge of the back panel 12 that functions as a sound insulation panel, is positioned between the upper frame 2A and the lower frame 2B. The upper and lower ends of the outer frame portion 5, to which the gap-filling material 6 is attached, are positioned and fixed to the ends of the longitudinal ends of the upper frame 2A and the lower frame 2B. Thus, the four sides of the back panel 12 are firmly held by the upper frame 2A, the lower frame 2B and each inner frame portion 4, and the gap-filling material 6 attached to the outer frame portion 5 can be easily positioned to extend along the entire vertical length of the soundproof panel 1 from the upper frame 2A to the lower frame 2B.

[0046] Furthermore, as shown in Figures 11 and 12, the inner frame portion 4 and the outer frame portion 5 are formed separately, and an engaging portion is formed on one of the inner frame portion 4 and the outer frame portion 5, while an engaging receiving portion is formed on the other, so that the engaging portion and the engaging receiving portion are engaged. This makes it possible to easily integrate the inner frame portion 4, which has a different vertical size, with the outer frame portion 5. In other words, it is possible to easily form a vertical frame 3 comprising an inner frame portion 4 and an outer frame portion 5 that is larger in the vertical size than the inner frame portion 4.

[0047] Furthermore, the soundproof panel 1 according to the present invention is not limited to the above-described embodiment, and various modifications are possible without departing from the spirit of the present invention. For example, the gap-filling material 6, which functions as a gap-filling part, has a flat outer shape for each shielding part 61, thereby forming the entire shielding part 61 into a narrow shape where the width is smaller than the size of the protrusion, but it is not limited to this. The shielding part 61 may be formed into another shape in which a narrow part is included in the shielding part 61, where the width is smaller than the size of the protrusion in the longitudinal direction, so that the shielding part 61 can be easily bent in the width direction. Furthermore, although the gap-filling material 6 is formed to have two shielding portions 61 protruding, it is not limited to this, and it may be provided with one shielding portion 61 protruding, or with three or more protruding portions.

[0048] Furthermore, although the soundproof panel 1 is formed by engaging a separate inner frame portion 4 and an outer frame portion 5 to form a vertical frame 3, it is not limited to this, and the vertical frame 3 may be formed from a single elongated body, or from combining three or more elongated bodies.

[0049] Furthermore, although the soundproof panel 1 has through holes 11a formed on substantially the entire surface of the front panel 11, it is not limited to this, and the front panel 11 may function as a sound insulation panel in the same way as the back panel 12 without forming through holes 11a. [Explanation of Symbols]

[0050] 1. Soundproofing panel 11 Front plate 12 Back plate 13 Sound-absorbing material 14. Soundproofing support board 2A Upper frame 2B Bottom frame 20 Hollow part 21 Groove 23 Screw groove 25. Folding 26 Engagement protrusion 3 Vertical frame 4. Inner frame section 40 base 41 Groove 43 Engagement part 5. Outer frame 50 base 51 Extension part 52 Cylindrical part 53 Engaging part 56 Engaging part 6. Gap-filling material 61 Shielding part 66 Engaging part 7 pillars 70 Column section 71 Web Department 72 First flange section 73 Second flange section 75 Step part 76 Contact part 77 Vertical board section 79 circuit boards 8. Sound insulation material F Fixing member

Claims

1. A soundproofing panel that is installed between support columns that are erected at intervals in the longitudinal direction, The soundproof panel comprises a rectangular sound-insulating plate and vertical frames attached to both edges of the sound-insulating plate, and each vertical frame has a gap-filling portion made of an elastic member that protrudes in the longitudinal direction and abuts against the support column, extending over substantially the entire length in the vertical direction. The soundproof panel is characterized in that the gap-filling portion has a narrow section in the longitudinally protruding portion where the width is smaller than the length of the longitudinal protrusion.

2. The soundproof panel according to claim 1, characterized in that the soundproof panel comprises a sound-absorbing material arranged in the width direction of the sound-insulating panel.

3. The aforementioned soundproof panel includes an upper frame and a lower frame attached to the top and bottom of the sound insulation panel, respectively. The soundproof panel according to claim 1, characterized in that the ends of each vertical frame are positioned on the leading side of the longitudinal ends of the upper frame and the lower frame.

4. The aforementioned vertical frame comprises an inner frame portion and an outer frame portion that is formed to be larger in the vertical direction than the inner frame portion. The soundproof panel according to claim 3, characterized in that the inner frame portion attached to the edge of the soundproofing panel is positioned between the upper frame and the lower frame, and the outer frame portion to which the gap-filling material constituting the gap-filling portion is attached has its upper and lower ends positioned towards the ends in the longitudinal direction of the upper and lower frames.

5. The soundproof panel according to claim 4, characterized in that the inner frame portion and the outer frame portion are formed separately, an engaging portion is formed on one of the inner frame portion and an engaging receiving portion is formed on the other, and the engaging portion and the engaging receiving portion are engaged.

6. The soundproof panel according to any one of claims 1 to 5, characterized in that the portions of the gap-filling section that protrude in the longitudinal direction are arranged with two portions spaced apart in the width direction.

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