WO2007132964A1

WO2007132964A1 - Soundproofing board

Info

Publication number: WO2007132964A1
Application number: PCT/KR2006/003251
Authority: WO
Inventors: Ki Soung Park
Original assignee: Ki Soung Park
Priority date: 2006-05-15
Filing date: 2006-08-18
Publication date: 2007-11-22

Abstract

The present invention provides a soundproofing board which is constructed such that several soundproofing boards can be engaged together in vertical and horizontal directions without a separate connection member. The soundproofing board of the present invention includes front and rear panels (11), which have bent ends (11a) having hooks (11b), an upper frame (12), which has an upside-down U-shaped cross-section and includes coupling extensions (12a) having hooks (12b), and a bent insertion part (12c) protruding upwards between the coupling extensions, and a lower frame (13), which has a U-shaped cross-section and includes coupling extensions (13a) having hooks (13b), and an insertion bent part (13c) protruding upwards between the coupling extensions. The soundproofing board further includes first and second side frames (14) and (15), which are inserted into opposite side edges of the front and rear panels, and a sound absorption member (19), which is placed in a space defined by the above-mentioned frames and panels.

Description

SOUNDPROOFING BOARD

Technical Field

[1] The present invention relates, in general, to soundproofing boards and, more particularly, to a soundproofing board, for constituting a roadside or building soundproofing wall, which is constructed around a noise generating site, such as a road, a construction site, a factory or a machinery room, to prevent noise from spreading. Background Art

[2] Generally, soundproof walls are erected around noise generating sites, such as roads, construction sites, factories and machinery rooms, to prevent noise from spreading.

[3] Such a soundproofing wall is constructed by stacking and engaging soundproofing boards, such as sound insulation boards for insulating (reflecting) noise or sound absorption boards for absorbing and removing noise, in vertical and horizontal directions. Depending on the kind of material, the soundproofing walls are classified into metal soundproofing walls, wooden soundproofing walls and synthetic resin soundproofing walls (typically, transparent soundproofing walls). Depending on the place where the soundproofing wall is constructed, the soundproofing walls are classified into road soundproofing walls, indoor soundproofing walls, etc.

[4] Soundproofing boards constituting the soundproofing wall have upper and lower ends that correspond to each other such that the soundproofing boards can be stacked. Here, the stacked soundproofing boards are supported by H-beams or channels. That is, the H-beams or the channels for supporting the soundproofing boards are installed depending on the length of the soundproofing board.

[5] However, in the conventional soundproofing wall, many H-beams or channels for supporting the soundproofing boards are required. Thus, there is a problem in that a relatively long time is required to install the H-beams or channels.

[6] Furthermore, the conventional soundproofing wall has limited soundproofing ability, because each soundproofing board has only either a sound insulation function or a sound absorption function. Disclosure of Invention

Technical Problem

[7] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a soundproofing board, which has a structure such that several soundproofing boards can be stacked in the vertical direction and be arranged in the horizontal direction without a separate connection member, and in which upper and lower frames and front and rear panels are securely assembled by a fitting method, and which is constructed such that the single soundproofing board has a sound absorption function, a sound insulation function, a double-sided soundproofing function and a double-sided sound insulation function.

[8] Another object of the present invention is to provide a soundproofing board, which has a structure on which it is possible to grow vegetation. Technical Solution

[9] In order to accomplish the above objects, the present invention provides a soundproofing board, including: front and rear panels having planar shapes and directly responding to noise, each of the front and rear panels having bent ends, which are formed by bending opposite ends of the panel in one direction, and each of which has a removal prevention hook on an edge thereof; an upper frame having an upside- down U-shaped cross-section and including a pair of coupling extensions, each having a removal prevention hook corresponding to the removal prevention hook of one bent end of each of the front and rear panels, and a bent insertion part protruding upwards between the coupling extensions and bent in a predetermined shape; a lower frame having a U-shaped cross-section and including a pair of coupling extensions, each having a removal prevention hook corresponding to the removal prevention hook of the remaining bent end of each of the front and rear panels, and an insertion bent part protruding upwards between the coupling extensions and bent in a shape corresponding to the shape of the bent insertion part of the upper frame; first and second side frames respectively having structures equal to the upper and lower frames, the first and second side frames being inserted into opposite side edges of the front and rear panels, thus closing the opposite sides of the upper and lower frames; and a sound absorption member placed in a space defined by the upper and lower frames, the front and rear panels and the first and second side frames.

[10] The bent ends of the front and real panels are locked to the respective coupling extensions of the upper and lower frames.

[11] Here, the bent ends of the front and real panels and the coupling extensions of the upper and lower frames maintain the locked state using the removal prevention hooks, which are provided on the edges thereof.

[12] Of course, the sound absorption member is placed between the upper and lower frames before or after the front and rear panels are coupled to the upper and lower frames.

[13] Thereafter, the first and second side frames, which respectively have the same structures as those of the upper and lower frames and are notched such that they can engage the opposite ends of the upper and lower frames, are inserted between and locked to the front and rear panels using bolts.

[14] Thanks to this structure, the upper end of the soundproofing board can be brought into close contact with the lower end of another soundproofing board, so that several soundproofing boards can be stacked, and the left end of the soundproofing board can be brought into close contact with the right end of another soundproofing board so that several soundproofing boards can be engaged and consecutively arranged in a horizontal direction. At this time, the horizontal arrangement of the soundproofing boards may be conducted merely by engagement therebetween, without using an H- beam.

Advantageous Effects

[15] The present invention provides a soundproofing board, which has bent insertion parts on upper, lower, left and right ends thereof, so that several soundproofing boards can be stacked in a vertical direction and be arranged in a horizontal direction without requiring a separate connection member, thus enhancing workability and con- structability in an installation process.

[16] Furthermore, in the present invention, when the soundproofing boards are arranged in a horizontal direction, it is not required to provide H-beams, which serve to support the soundproofing boards, to every soundproofing board. Therefore, time and cost required to construct the H-beams are reduced.

[17] As well, in the present invention, the soundproofing boards to be stacked in a vertical direction and be arranged in a horizontal direction can be changed in size. Thus, soundproofing walls having various designs can be produced.

[18] In addition, because gaps between the soundproofing boards, which engage together in vertical and horizontal directions, are reduced and reliably closed, soundproofing efficiency is further enhanced.

[19] Moreover, vegetation can be grown on the present invention, thus creating an environment-friendly appearance. Furthermore, the soundproofing board of the present invention increases the time during which noise that has entered the soundproofing board remains in the soundproofing board, thus enhancing sound absorption efficiency. Brief Description of the Drawings

[20] FIG. 1 is an exploded perspective view of a soundproofing board according to an embodiment of the present invention;

[21] FIG. 2 is a side sectional view of the soundproofing board of FIG. 1 ;

[22] FIG. 3 is a plan sectional view of the soundproofing board of FIG. 1 ;

[23] FIG. 4 is a side sectional view showing several stacked soundproofing boards according to the present invention; [24] FlG. 5 is a plan sectional view showing several stacked soundproofing boards, which engage together in a horizontal direction, according to the present invention; [25] FlG. 6 is a side sectional view showing a first example of a method of stacking the soundproofing boards using an H-beam according to the present invention; [26] FlG. 7 is a side sectional view showing a second example of a method of stacking the soundproofing boards using an H-beam according to the present invention; [27] FlG. 8 is a plan sectional view showing an example of a method of engaging the soundproofing boards using H-beams according to the present invention; [28] FlG. 9 is a view showing a first example of construction and installation of front and rear panels of the soundproofing board according to the present invention; [29] FlG. 10 is a view showing a second example of construction and installation of front and rear panels of the soundproofing board according to the present invention; [30] FlG. 11 is a view showing a third example of construction and installation of front and rear panels of the soundproofing board according to the present invention; [31] FlG. 12 is a view showing a fourth example of construction and installation of front and rear panels of the soundproofing board according to the present invention; [32] FlG. 13 is a view showing a fifth example of construction and installation of front and rear panels of the soundproofing board according to the present invention; [33] FlG. 14 is a view showing a sixth example of construction and installation of front and rear panels of the soundproofing board according to the present invention; [34] FlG. 15 is a view showing a seventh example of construction and installation of front and rear panels of the soundproofing board according to the present invention; [35] FlG. 16 is a view showing an eighth example of construction and installation of front and rear panels of the soundproofing board according to the present invention; [36] FlG. 17 is a side sectional view showing another embodiment of installation of the soundproofing boards according to the present invention, showing the use of a transparent panel;

[37] FlG. 18 is a front view showing the embodiment of FlG. 17;

[38] FlG. 19 is a perspective view showing an embodiment in which wooden bars are used as front and rear panels of a soundproofing board according to the present invention;

[39] FlG. 20 is a side sectional view of HG. 19;

[40] FlG. 21 is a side sectional view showing another embodiment in which wooden bars are used as front and rear panels of a soundproofing board according to the present invention; [41] FlG. 22 is a plan sectional view showing the embodiment of FlG. 19, in which the wooden bars are used as the front and rear panels of the soundproofing board; [42] FlG. 23 is a plan sectional view showing the embodiment of FlG. 21, in which the wooden bars are used as the front and rear panels of the soundproofing board;

[43] FlG. 24 is a front view showing an embodiment, in which various kinds of soundproofing boards having different front and rear panels are combined, according to the present invention;

[44] FlG. 25 is a front view showing another embodiment, in which various kinds of soundproofing boards having different front and rear panels are combined, according to the present invention;

[45] FlG. 26 is a perspective view showing an embodiment, in which wire mesh is used as front and rear panels of a soundproofing board according to the present invention;

[46] FlG. 27 is an exploded perspective view showing in detail the construction of FlG.

26;

[47] FlG. 28 is a side sectional view showing in detail the construction of FlG. 26;

[48] FlG. 29 is a side sectional view illustrating vegetation growing on the soundproofing board of FlG. 26;

[49] FlG. 30 is a sectional view showing another example of the embodiment of FlG.

26; and

[50] FlG. 31 is an exploded perspective view showing another example of the embodiment of FlG. 26. Best Mode for Carrying Out the Invention

[51] FlG. 1 is an exploded perspective view of a soundproofing board according to an embodiment of the present invention. FlG. 2 is a side sectional view of the soundproofing board of FlG. 1. FlG. 3 is a plan sectional view of the soundproofing board of FlG. 1. FlG. 4 is a side sectional view showing several stacked soundproofing boards according to the present invention. FlG. 5 is a plan sectional view showing several stacked soundproofing boards, which engage together in a horizontal direction, according to the present invention. FlG. 6 is a side sectional view showing a first example of a method of stacking the soundproofing boards using an H-beam according to the present invention. FlG. 7 is a side sectional view showing a second example of a method of stacking the soundproofing boards using an H-beam according to the present invention. FlG. 8 is a plan sectional view showing an example of a method of engaging the soundproofing boards using H-beams according to the present invention. FlG. 9 is a view showing a first example of construction and installation of front and rear panels of the soundproofing board according to the present invention. FlG. 10 is a view showing a second example of construction and installation of front and rear panels of the soundproofing board according to the present invention. FlG. 11 is a view showing a third example of construction and installation of front and rear panels of the soundproofing board according to the present invention. FlG. 12 is a view showing a fourth example of construction and installation of front and rear panels of the soundproofing board according to the present invention. FlG. 13 is a view showing a fifth example of construction and installation of front and rear panels of the soundproofing board according to the present invention. FlG. 14 is a view showing a sixth example of construction and installation of front and rear panels of the soundproofing board according to the present invention. FlG. 15 is a view showing a seventh example of construction and installation of front and rear panels of the soundproofing board according to the present invention. FlG. 16 is a view showing an eighth example of construction and installation of front and rear panels of the soundproofing board according to the present invention. FlG. 17 is a side sectional view showing another embodiment of installation of the soundproofing boards according to the present invention, showing the use of a transparent panel. FlG. 18 is a front view showing the embodiment of FlG. 17. FlG. 19 is a perspective view showing an embodiment, in which wooden bars are used as front and rear panels of a soundproofing board according to the present invention. FlG. 20 is a side sectional view of FlG. 19. FlG. 21 is a side sectional view showing another embodiment, in which wooden bars are used as front and rear panels of a soundproofing board according to the present invention. FlG. 22 is a plan sectional view showing the embodiment of FlG. 19, in which the wooden bars are used as the front and rear panels of the soundproofing board. FlG. 23 is a plan sectional view showing the embodiment of FlG. 21, in which the wooden bars are used as the front and rear panels of the soundproofing board. FlG. 24 is a front view showing an embodiment, in which various kinds of soundproofing boards having different front and rear panels are combined, according to the present invention. FlG. 25 is a front view showing another embodiment, in which various kinds of soundproofing boards having different front and rear panels are combined, according to the present invention. FlG. 26 is a perspective view showing an embodiment, in which wire mesh is used as front and rear panels of a soundproofing board according to the present invention. FlG. 27 is an exploded perspective view showing in detail the construction of FlG. 26. FlG. 28 is a side sectional view showing in detail the construction of FlG. 26. FlG. 29 is a side sectional view illustrating vegetation growing on the soundproofing board of FlG. 26. FlG. 30 is a sectional view showing another example of embodiment of FlG. 26. FlG. 31 is an exploded perspective view showing another example of embodiment of FlG. 26.

[52] Hereinafter, the present invention will be described in detail with reference to the attached drawings.

[53] As shown in FIGS. 1 through 3, the soundproofing board of the present invention includes front and rear panels 11, each of which has a planar shape overall and directly responds to noise. Each panel 11 has opposite bent ends lla, which are formed by bending opposite ends of the panel 11 in one direction, and each of which has a removal prevention hook 1 Ib on an edge thereof. The soundproofing board further includes an upper frame 12, which has an upside-down U-shaped cross-section overall. The upper frame 12 includes a pair of coupling extensions 12a, each of which has a removal prevention hook 12b to be locked to the removal prevention hook 1 Ib of one bent end of each of the front and rear panels 11. The upper frame 12 further includes a bent insertion part 12c, which protrudes upwards between the coupling extensions 12a and is bent in a predetermined shape. The soundproofing board further includes a lower frame 13, which has a U-shaped cross-section overall. The lower frame 13 includes a pair of coupling extensions 13a, each of which has a removal prevention hook 13b to be locked to the removal prevention hook 1 Ib of the remaining bent end of each of the front and rear panels 11. The lower frame 13 further includes an insertion bent part 13c, which protrudes upwards between the coupling extensions 13a and is bent in a shape corresponding to the shape of the bent insertion part 12c of the upper frame 12. The soundproofing board further includes first and second side frames 14 and 15, which respectively have the same structures as those of the upper and lower frames 12 and 13, and are inserted into opposite side edges of the front and rear panels 11 to close the opposite sides of the upper and lower frames 12 and 13. The soundproofing board further includes a sound absorption member 19, which is charged in a space defined by the upper and lower frames 12 and 13, the front and rear panels 11 and the first and second side frames 14 and 15.

[54] In the present invention having the above-mentioned construction, each of the front and rear panels 11 may be, for example, an opaque or transparent planar panel, and may be a panel which is bent in a specific shape.

[55] Furthermore, perforations may be formed in the surface of each panel 11. Alternatively, slots may be formed in the surface of each panel 11. As a further alternative, both perforations and slots may be formed in the surface of each panel 11.

[56] Furthermore, each of the front and rear panels 11 may be, for example, a wire mesh or a cell hole board (the above-mentioned perforations are holes formed in the panel at positions spaced apart from each other at regular intervals, while holes of the cell hole board are defined by partition walls constructing the cell hole board).

[57] The removal prevention hook 1 Ib, which is provided on each bent end 1 Ia, may be provided on an edge of the bent end lla. Alternatively, one or more hooks may be provided on the surface of each bent end 1 Ia to form an uneven surface texture. In this case, the coupling force between the removal prevention hook 1 Ib and the associated removal prevention hook 12b or 13b of the upper or lower frame 12 or 13, which will be explained later herein, is increased.

[58] Meanwhile, the upper frame 12 comprises a plate structure having an upside-down

U-shaped cross-section overall. The bent insertion part 12c is protruded upwards by bending a longitudinal central portion of the plate structure into a trapezoidal shape. Part of the protruding part is again bent downwards. Each coupling extension 12a protrudes from each inclined surface of the bent insertion part 12c in a direction parallel to the overall surface of the upper frame 12.

[59] Of course, the removal prevention hook 12b, which is provided on each coupling extension 12a, may be provided on an edge of the coupling extension 12a. Alternatively, one or more hooks may be provided on the surface of each coupling extension 12a to form an uneven surface shape.

[60] In this case, the coupling force of the removal prevention hook 12b to the associated removal prevention hook 1 Ib of the front or rear panel 11 is increased.

[61] Furthermore, the lower frame 13 comprises a plate structure having a U-shaped cross-section overall. The bent insertion part 13c is protruded upwards by bending the longitudinal central portion of the plate structure into a trapezoidal shape (in the same shape as that of the bent insertion part of the upper frame). Part of the protruding part is bent upwards once more. Each coupling extension 13a protrudes from each inclined surface of the bent insertion part 13c in a direction parallel with the overall surface of the lower frame 13.

[62] Of course, the removal prevention hook 13b, which is provided on each coupling extension 13a, may be provided on an edge of the coupling extension 13a. Alternatively, one or more hooks may be provided on the surface of each coupling extension 13a to form an uneven surface shape.

[63] In this case, the coupling force of the removal prevention hook 13b to the associated removal prevention hook 1 Ib of the front or rear panel 11 is increased.

[64] Here, a transparent soundproofing panel or a typical soundproofing panel may be inserted into and fastened to the center bent surfaces, which are formed in the longitudinal central portion of the bent insertion parts 12c and 13c of the adjacent upper and lower frames 12 and 13 of adjacent soundproofing boards.

[65] That is, for example, when several soundproofing boards are stacked, a transparent soundproofing panel or a typical soundproofing panel may be inserted between the center bent surface, which is formed at the central position in the bent insertion part 12c of the upper frame 12 of the soundproofing board disposed at a lower position, and the center bent surface, which is formed at the central position in the bent insertion part 13c of the lower frame 13 of the soundproofing board disposed at an upper position. Furthermore, the soundproofing panel may be fastened to the center bent surfaces using bolts or other locking means. [66] The first side frame 14 has, for example, the same structure and shape as those of the upper frame 12, and opposite ends of the first side frame 14 are notched by press- punching such that they can engage with ends of the upper and lower frames 12 and 13.

[67] Here, the opposite ends of the first side frame 14 may be notched to have shapes corresponding to the shapes into which the upper and lower frames 12 and 13 are bent. Alternatively, the contact ends of the first side frame 14 and the upper and lower frames 12 and 13 may be cut at angles of 45° such that they can be brought into close contact with each other.

[68] The second side frame 15 has, for example, the same structure and shape as those of the lower frame 13, and opposite ends of the second side frame 15 are notched by press-punching such that they can engage with ends of the upper and lower frames 12 and 13. The shapes of the opposite notched ends of the second side frame 15 are the same as those of the first side frame 14.

[69] For reference, because the first and second side frames 14 and 15 respectively have the same structures as those of the upper and lower frames 12 and 13, detailed parts thereof will be given the same reference numerals as those of the upper and lower frames 12 and 13.

[70] The sound absorption member 19 is satisfactory if it is made of material, such as glass wool, having sound absorbing ability.

[71] Embodiments according to installation and structure of the present invention having the above-mentioned construction will be explained herein below.

[72] As shown in FIG. 4, when the soundproofing boards 10 of the present invention are stacked and coupled to each other, the bent insertion part 13c of the lower frame 12 of the soundproofing board 10, which is disposed at an upper position, is placed on the bent insertion part 12c of the upper frame 12 of the soundproofing board 10, which is disposed at a lower position, and the bent surfaces of the bent insertion parts 12c and 13c are brought into close contact with each other.

[73] Thereafter, the stacked soundproofing boards 10 are fastened to each other using bolts or other locking means. At this time, gaps between the adjacent soundproofing boards 10 are closed and finished using finishing members 16, which are aluminum members.

[74] Then, the stacked structure of the soundproofing boards 10 becomes steadier, and noise is prevented from being transmitted through the gaps. Therefore, soundproofing efficiency is enhanced.

[75] Furthermore, as shown in FIG. 5, the soundproofing boards 10 of the present invention may be arranged in a horizontal direction.

[76] In this case, when adjacent soundproofing boards 10 are coupled to each other, the first side frame 14 of the right soundproofing board 10, which has the same structure as that of the upper frame 12, is inserted into and brought into close contact with the second side frame 15 of the left soundproofing board 10, which has the same structure as that of the lower frame 13.

[77] In detail, the bent insertion part 12c of the first side frame 14 of the right soundproofing board 10 is brought into close contact with the bent insertion part 13c of the second side frame 15 of the left soundproofing board 10, so that the left and right soundproofing boards 10 are coupled to each other.

[78] Subsequently, the soundproofing boards 10, which are arranged in a horizontal direction, are fastened to each other using bolts or other locking means. At this time, gaps between the adjacent soundproofing boards 10 are closed and finished using finishing members 16, which are aluminum members.

[79] As shown in FIGS. 6 and 7, the soundproofing boards 10 to be stacked by the above-mentioned method may be installed by a method in which each soundproofing board 10 is placed between a pair of C-shaped steel members 2, which are fastened to a surface of an H-beam 1, or, alternatively, by a method, in which a bent insertion part 12c of an upper frame 12 of a lower soundproofing board 10 is inserted into and is brought into close contact with a bent insertion part 13c of a lower frame 13 of an upper soundproofing board 10 while the uppermost and lowermost soundproofing boards 10 are fastened to the H-beam by C-shaped steel members 2.

[80] Furthermore, as shown in FlG. 8, the soundproofing boards 10 of the present invention to be arranged in a horizontal direction by the above-mentioned method are consecutively installed through a method in which the soundproofing boards 10 are inserted between a pair of C-shaped steel members 2, each of which is fastened to the surface of each H-beam 1 using bolts.

[81] Meanwhile, in the soundproofing board 10 having the above-mentioned construction, as shown in FlG. 9, a plurality of perforations may be formed in the front and rear panels 11. Alternatively, as shown in FlG. 10, a plurality of slots may be formed in the front and rear panels 11. As a further alternative, the front and rear panels 11 may be transparent panels. These are selectively determined depending on the amount of noise and characteristics of sites.

[82] Furthermore, as shown in FlG. 12, a plurality of front and rear panels 11 may be provided between the upper and lower frames 12 and 13. In this case, a panel 11 having perforations, a planar panel 11 and a panel 11 having slots may be combined.

[83] Furthermore, the planar panel may be transparent, opaque or semitransparent.

[84] In this case, a single soundproofing board can perform a sound absorption function and a sound insulation function.

[85] For reference, it is preferable that front and rear panels having the same structure be used, for example, if the front panel is a perforated panel, the rear panel is also a perforated panel, if the front panel is a panel having slots, the rear panel is also a panel having slots, and, if the front panel is a transparent panel (or an opaque panel), the rear panel is also a perforated panel (or an opaque panel). However, the present invention is not limited to this, that is, panels having different structures may be used as the front and rear panels.

[86] As described above, the soundproofing boards 10 of the present invention, which are stacked and arranged in a horizontal direction, are supported by and fastened to the H-beams 1 and the C-shaped steel members 2 (for example, the soundproofing boards 10 are fastened to the H-beams 1 and the C-shaped steel members 2 using bolts). As shown in FIGS. 13 and 14, the arrangement of the soundproofing boards 10, which are supported by and fastened to the H-beams 1 and the C-shaped steel members 2, may be vertical or horizontal. Alternatively, as shown in FIGS. 15 and 16, the arrangement of the soundproofing boards 10 may be diagonal.

[87] In this case, the front and rear panels 11 and the upper and lower frames 12 and 13 are cut at an incline. The first and second side frames 14 and 15 are machined to correspond to the inclined surfaces of the front and rear panels 11 and the upper and lower frames 12 and 13, and they securely engage with each other.

[88] Furthermore, in the present invention, as shown in FIGS. 17 and 18, a transparent panel 3 or a normal panel may be inserted between and fastened to the center bent surfaces, which are formed in the central portions of the bent insertion parts 12c and 13c of the upper and lower frames 12 and 13 of the adjacent soundproofing boards 10.

[89] For example, in the case in which the soundproofing boards 10 are stacked, the transparent panel 3 or typical panel is inserted between and fastened to the center bent surface of the bent insertion part 12c of the upper frame 12 of the soundproofing board, which is disposed at a lower position, and the center bent surface of the bent insertion part 13c of the lower frame 12 of the soundproofing board, which is disposed at an upper position, using bolts or other locking means.

[90] In this case, the upper and lower soundproofing boards 10 and the transparent panel

3 are supported by soundproofing boards 10, which engage with the opposite edges of the upper and lower soundproofing boards 10 and the transparent panel 3. Particularly, the soundproofing boards 10, which are disposed on opposite sides, serve as support frames for supporting the transparent panel 3.

[91] Furthermore, as shown in FIGS. 19 through 21, wooden bars 4 may be coupled to opposite bent sides of the upper and lower frames 12 and 13 using bolts or rivets or by a mechanical coupling method.

[92] The wooden bars 4 may be oriented in vertical directions, or, alternatively, as shown in FIGS. 22 and 23, the wooden bars 4 may be oriented in horizontal directions, that is, they may be fastened to the first and second side frames 14 and 15 through the above-mentioned coupling methods.

[93] In this case, unlike the metal front and rear panels, which have a hard appearance, the wooden bars suggest the beauty of nature.

[94] Overall, as shown in FIGS. 24 and 25, in the present invention, various soundproofing boards 10 having different kinds of front and rear panels 11 may be reliably installed without several H-beams.

[95] Furthermore, because various designs of soundproofing boards 10 engage with each other, a good appearance of the soundproofing wall is ensured. Of course, each soundproofing board 10 may be colored to have various colors, and an image may be formed on the surface thereof.

[96] Moreover, as shown in FIGS. 26 through 28, the present invention can support vegetation. In detail, as shown in FIGS. 26 through 28, front and rear panels 11 comprise wire mesh 17. The wire mesh is placed in and fastened to opposite bent sides 12d and 13d of upper and lower frames 12 and 13. Support protrusions 12e and 13e are respectively provided in the upper and lower frames 12 and 13 at positions spaced apart from the opposite bent sides 12d and 13d by predetermined distances. Cell hole boards 18, each of which has honeycomb holes therein, are fastened to the support protrusions 12e and 13e. A sound absorption member 19 is placed between opposite cell hole boards 18.

[97] Here, the wire mesh 17 and the cell hole boards 18 may be fastened to the opposite bent sides 12d and 13d of the upper and lower frames 12 and 13 using rivets or locking pieces. Alternatively, as shown in FlG. 30, the wire mesh 17 and the cell hole boards 18 may be securely fitted between the opposite bent sides 12d and 13d and the support protrusions 12e and 13e which are adjacent to each other.

[98] Furthermore, seeds may be planted in the sound absorption member 19, and the sound absorption member 19 may contain nutrients for the seeds.

[99] Here, the wire mesh 17 serves as support walls for the growth of plants, and the cell hole boards 18 provide paths for the growth of the plants and serve to reliably support the upper and lower frames 12 and 13. In addition, because noise, which enters the cell hole board 18, is reflected by the partition walls constructing the cell hole board 18, the cell hole board 18 increases the time during which noise remains in the cell hole board 18, thus enhancing the sound absorbing efficiency thereof.

[100] In this case, as shown in FlG. 29, the plants grow from the sound absorption member 19, and the plants extend outside the wire mesh 17 through the cell hole boards 19 while their roots are fastened in the sound absorption member 19. Therefore, the plants can create the feeling of a plant wall.

[101] In the present invention, as shown in FlG. 31, a wire mesh 17 may be constructed by forming pipes to have a lattice shape, thus increasing the strength thereof.

[102] Furthermore, several vegetation soundproofing boards having the above-mentioned constructions can be engaged together in vertical and horizontal directions, as described above, thus forming a single vegetation soundproofing wall. Industrial Applicability

[103] The present invention provides a soundproofing board, which has bent insertion parts on upper, lower, left and right ends thereof, so that several soundproofing boards can be stacked in a vertical direction and be arranged in a horizontal direction without a separate connection member, thus enhancing workability and constructability in an installation process.

[104] Furthermore, in the present invention, when the soundproofing boards are arranged in a horizontal direction, it is not required to provide H-beams, which serve to support the soundproofing boards, to every soundproofing board. Therefore, the time and cost required to construct the H-beams are reduced.

[105] As well, in the present invention, the soundproofing boards to be stacked in a vertical direction and be arranged in a horizontal direction can be changed in size. Thus, various designs of soundproofing walls can be produced.

[106] In addition, because gaps between the soundproofing boards, which engage together in vertical and horizontal directions, are reduced and reliably closed, soundproofing efficiency is further enhanced.

[107] Moreover, vegetation can be grown on the present invention, thus creating an environment-friendly sensation. Furthermore, the soundproofing board of the present invention increases the time during which noise that has entered the soundproofing board remains in the soundproofing board, thus enhancing sound absorbing efficiency.

[108] Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.

Claims

[1] A soundproofing board, comprising: front and rear panels having planar shapes and directly responding to noise, each of the front and rear panels having bent ends, which are formed by bending opposite ends of the panel in one direction, and each of which has a removal prevention hook on an edge thereof; an upper frame having an upside-down U-shaped cross-section and comprising: a pair of coupling extensions, each having a removal prevention hook corresponding to the removal prevention hook of one bent end of each of the front and rear panels; and a bent insertion part protruding upwards between the coupling extensions and bent in a predetermined shape; a lower frame having a U-shaped cross-section and comprising: a pair of coupling extensions, each having a removal prevention hook corresponding to the removal prevention hook of the remaining one bent end of each of the front and rear panels; and an insertion bent part protruding upwards between the coupling extensions and bent in a shape corresponding to the shape of the bent insertion part of the upper frame; first and second side frames respectively having structures equal to the upper and lower frames, the first and second side frames being inserted into opposite side edges of the front and rear panels, thus closing the opposite sides of the upper and lower frames; and a sound absorption member charged in a space defined by the upper and lower frames, the front and rear panels and the first and second side frames.

[2] The soundproofing board according to claim 1, wherein each of the removal prevention hooks of the front and rear panels comprises one or more hooks provided on a surface of each of the bent ends of the front and rear panels to form an uneven surface shape, and each of the removal prevention hooks of the upper and lower frames and the first and second side frames comprises one or more hooks provided on a surface of each of the coupling extensions of the upper and lower frame and first and second side frames to form an uneven surface shape.

[3] The soundproofing board according to claim 1, wherein the upper frame comprises a plate structure having an upside-down U-shaped cross-section, the bent insertion part of the upper frame is protruded upwards by bending a central portion of the plate structure in a trapezoid shape while part of the bent central portion is bent downwards, and each of the coupling extensions protrudes from each of inclined surfaces of the bent insertion part in a direction parallel with an overall surface of the upper frame.

[4] The soundproofing board according to claim 1, wherein the lower frame comprises a plate structure having a U-shaped cross-section, the bent insertion part of the lower frame is protruded upwards by bending a central portion of the plate structure in a trapezoid shape (in a same shape as the shape of the bent insertion part of the upper frame) while part of the bent central portion is bent upwards, and each of the coupling extensions protrudes from each of inclined surfaces of the bent insertion part in a direction parallel with an overall surface of the lower frame.

[5] The soundproofing board according to claim 1, wherein the first side frame has a shape and structure equal to a shape and structure of the upper frame, and opposite ends of the first side frame are notched by press-punching such that the opposite ends of the first side frame respectively engage with ends of the upper and lower frames.

[6] The soundproofing board according to claim 1, wherein the second side frame has shape and structure equal to shape and structure of the lower frame, and opposite ends of the second side frame are notched by press-punching such that the opposite ends of the second side frame engage with respective ends of the upper and lower frames.

[7] The soundproofing board according to any one of claim 5 or 6, wherein the opposite ends of the first or second side frame are notched to have shapes respectively corresponding to the shapes in which the upper and lower frames are bent.

[8] The soundproofing board according to any one of claim 5 or 6, wherein contact edges of the first or second side frame and the upper and lower frames may be cut at angles of 45°.

[9] The soundproofing board according to claim 1, wherein, when several soundproofing boards are stacked, the bent insertion part of the lower frame of the soundproofing board, which is disposed at an upper position, is placed onto the bent insertion part of the upper frame of the soundproofing board, which is disposed at a lower position, and gaps between the adjacent soundproofing boards are closed and finished using a finishing member, which comprises an aluminum frame.

[10] The soundproofing board according to claim 9, wherein each of the soundproof! ng boards to be vertically stacked is installed between a pair of C-shaped steel members, which are fastened to one surface of an H-beam using a bolt.

[11] The soundproofing board according to claim 9, wherein, among the stacked soundproofing boards, the bent insertion part of the lower frame of the soundproofing board, which is disposed at an upper position, and the bent insertion part of the upper frame of the soundproofing board, which is disposed at a lower position, engage with each other, and the uppermost soundproofing board and the lowermost soundproofing board are fastened to an H-beam through C-shaped steel members.

[12] The soundproofing board according to claim 1, wherein each of the front and rear panels comprises a perforated panel, a planar panel and a slotted panel, which are provided together between the upper and lower frames.

[13] The soundproofing board according to claim 1, wherein a transparent panel is fitted between a bent surface, which is formed in a central portion of the bent insertion part of the upper frame, and a bent surface, which is formed in a central portion of the bent insertion part of the lower frame of an adjacent soundproofing board.

[14] The soundproofing board according to claim 1, wherein each of the front and rear panels comprises a wire mesh, opposite ends of which are bent, the wire mesh is placed in opposite bent sides of upper and lower frames, cell hole boards, each of which has honeycomb holes therein, are provided between the wire mesh, and a sound absorption member is placed between opposite cell hole boards.

[15] The soundproofing board according to claim 14, wherein the wire meshes and the cell hole boards are fastened to opposite bent sides of the upper and lower frames using rivets.

[16] The soundproofing board according to claim 14, wherein the wire mesh and the cell hole boards are fitted between the bent sides of upper and lower frames and support protrusions, which are provided in upper and lower frames at positions spaced apart from the opposite bent sides by predetermined distances.

[17] The soundproofing board according to claim 14, wherein the wire mesh has a net structure.

[18] The soundproofing board according to claim 14, wherein the wire mesh is constructed by coupling pipes in a lattice shape.

[19] The soundproofing board according to claim 14, wherein the sound absorption member has seeds of plants therein.