Panel fixing metal fitting and panel fixing structure

Abstract

To provide a fixing metal fitting of a panel capable of being easily driven between the panel and a support even when elastic force is strong.SOLUTION: A panel fixing metal fitting according to the present invention is a panel fixing metal fitting that fixes a panel inserted between erected supports by the elastic force of a bent metal plate, wherein the panel fixing metal fitting is provided with a first vertical side part extended vertically in a straight line in a vertical cross-section, a second vertical side part folded back upward from a lower end of the first vertical side part, a third vertical side part bent in an elbow shape by folding back from an upper end of the second vertical side part toward the first vertical side part, and a flange part folded back from an upper end of the first vertical side part toward the second vertical side part.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a fixing bracket and a panel fixing structure that fixes panels such as soundproof or sound insulating walls installed along noise sources such as highways and railroad tracks to supports made of H-shaped steel or the like by utilizing the elastic restoring force of metal plates. [Background technology]

[0002] Conventionally, soundproof walls have been constructed by erecting H-shaped steel pillars at specified intervals and inserting soundproofing or sound-insulating panels into the flanges of the H-shaped steel, thereby providing soundproofing or blocking (sound insulation) for noise sources such as highways, railways, and factories.

[0003] The soundproof panels of this soundproof wall are fixed to the supports (H-shaped steel or the like) by driving a fixing bracket made of a bent metal plate such as a steel plate into the gap between the soundproof panel and the flange of the H-shaped steel support, as shown in Patent Document 1, and pressing and fixing the panel in place using the elastic restoring force of the fixing bracket as a leaf spring.

[0004] Patent Document 1 discloses a wall panel fixing bracket which is formed of a side panel and a spring panel which form a V-shape via a bent portion, and a bent piece which is bent at an acute angle from the top of the spring panel towards the side panel and further has its tip bent slightly towards the spring panel, and which is driven into the gap between the flanges of the support at both side ends of a soundproof panel or a plastic panel which is installed by dropping it between H-shaped steel supports to fix the wall panel to the support, in which the central part of the side panel is cut out except for one side, and a hooking tongue which is bent towards the spring panel using the one side as a fulcrum is hooked onto and fixed in a hooking tongue receptacle drilled in the bent piece (see Claim 1, Figures 1 and 2, etc. in the Scope of Claims of Patent Document 1). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2001-65523 A Summary of the Invention [Problem to be solved by the invention]

[0006] On the other hand, in recent years, soundproofing panels or soundproofing panels have become larger, and panels with larger areas are often used. For this reason, while a pressing force of 2kN was generally required to fix a panel in the past, a pressing force of 6kN is now required to fix a panel. This has led to a need for fixing metal fittings with stronger elasticity to support panels with larger areas.

[0007] However, with the fixing bracket described in Patent Document 1, as shown in Fig. 10, when inserting the fixing bracket 100 between the panel 8 and the support 7, it is necessary to strike two places, the spring plate 130 and the top plate 150. For this reason, when using a fixing bracket with strong elasticity, there is a problem that the gap between the spring plate 130 and the side plate 120 opens up, making it difficult to insert the fixing bracket between the panel 8 and the support 7.

[0008] Furthermore, with the fixing bracket described in Patent Document 1, when handling a fixing bracket with strong elasticity, there was a problem that the fixing bracket bent at the contact point I between the fixing bracket 100 and the panel 8, making it difficult to insert between the panel 8 and the support 7.

[0009] The present invention has been devised in consideration of the above-mentioned problems, and its object is to provide a panel fixing fixture that can be easily driven between a panel and a support post even when the elastic force is strong. [Means for solving the problem]

[0010] The panel fixing bracket of the first invention is a panel fixing bracket that fixes a panel inserted between upright supports by the elastic force of a folded metal plate, and is characterized in having a first vertical side portion that extends linearly from top to bottom in a vertical cross section, a second vertical side portion that is folded upward from the lower end of the first vertical side portion, a dog-like third vertical side portion that is folded upward from the upper end of the second vertical side portion toward the first vertical side portion, and a flange portion that is folded back from the upper end of the first vertical side portion toward the second vertical side portion.

[0011] The fixing bracket for a panel of the second invention is characterized in that, in the first invention, the first vertical side portion, the second vertical side portion, and the third vertical side portion are inserted between the panel and the support from a bend between the first vertical side portion and the second vertical side portion, so that the first vertical side portion, the second vertical side portion, and the third vertical side portion elastically deform to exert the elastic force.

[0012] The panel fixing bracket of the third invention is characterized in that, in the first invention, the third vertical side portion is inserted between the panel and the support from the bent portion between the first vertical side portion and the second vertical side portion, so that the L-shaped bent portion of the third vertical side portion contacts the first vertical side portion and the lower end of the third vertical side portion contacts the second vertical side portion.

[0013] The panel fixing metal fitting according to a fourth aspect of the present invention is characterized in that, in the first aspect, the second vertical side portion is V-shaped.

[0014] The panel fixing metal fitting according to a fifth aspect of the present invention is characterized in that in the first aspect, it further comprises an end portion folded back from the lower end of the third vertical side portion towards the first vertical side portion.

[0015] The panel fixing structure of the sixth invention is a panel fixing structure comprising a plurality of pillars having grooves formed in the vertical direction, and a panel inserted into the opposing grooves of the pillars, and is characterized in that a panel fixing bracket described in any one of the first to fifth inventions is inserted between the panel and the pillars, and the panel is fixed to the pillars. Effect of the Invention

[0016] According to the first to sixth inventions, the fixing bracket has a flange portion folded back from the upper end of the first vertical side portion towards the second vertical side portion. Therefore, by striking the flange portion, it is possible to drive the fixing bracket between the panel and the support. This makes it possible to easily drive the fixing bracket in by striking one place. Furthermore, by striking the flange portion, the driving force is applied to the entire fixing bracket, making it easy to drive in. As a result, it is possible to provide a fixing bracket for a panel that can be easily driven in between the panel and the support, even if the elasticity of the fixing bracket is strong.

[0017] In particular, according to the second aspect of the present invention, the first vertical side portion, the second vertical side portion, and the third vertical side portion are inserted between the panel and the support column from the bent portion between the first vertical side portion and the second vertical side portion. This allows the bent portion between the first vertical side portion and the second vertical side portion and the bent portion between the second vertical side portion and the third vertical side portion to elastically deform in the opening direction to exert elastic force, making it possible to provide a fastening fixture with stronger elastic force.

[0018] In particular, according to the third aspect of the invention, the third vertical side portion has a dogleg bent portion that contacts the first vertical side portion and a lower end that contacts the second vertical side portion, thereby generating a repulsive force at the contact point, making it possible to provide a fastening member having a stronger elasticity.

[0019] In particular, according to the fourth aspect of the present invention, the second vertical side portion is doglegged, so that even if the distance between the panel and the support post is greater, the panel and the support post can be fixed together by inserting a fixing bracket between the panel and the support post.

[0020] In particular, according to the fifth aspect of the present invention, the fixing bracket further includes an end portion folded back from the lower end of the third vertical side portion toward the first vertical side portion, whereby the bent portion between the third vertical side portion and the end portion elastically deforms in the opening direction to exert an elastic force, making it possible to provide a fixing bracket having a stronger elastic force. [Brief description of the drawings]

[0021] [Figure 1] FIG. 1 is a diagram showing a soundproof wall using fixing brackets according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a perspective view showing a fastening metal fitting for a panel according to the embodiment of the present invention. [Diagram 3] Fig. 3(a) is a side view showing a fastening metal fitting for a panel according to an embodiment of the present invention. Fig. 3(b) is a plan view showing a fastening metal fitting for a panel according to an embodiment of the present invention. Fig. 3(c) is a rear view showing a fastening metal fitting for a panel according to an embodiment of the present invention. Fig. 3(d) is a front view showing a fastening metal fitting for a panel according to an embodiment of the present invention. Fig. 3(e) is a bottom view showing a fastening metal fitting for a panel according to an embodiment of the present invention. [Figure 4] FIG. 4 is a diagram showing a fixing metal fitting when the second vertical side portion is doglegged shaped. [Diagram 5] FIG. 5 is a diagram showing a fastening metal fitting in which a groove is provided in the second vertical side portion. [Figure 6] FIG. 6 is a diagram showing how the fixing brackets are hammered between the panel and the support. [Figure 7] FIG. 7 is a diagram showing the state of force transmitted to a fastener when a strike is applied. [Figure 8] FIG. 8 is a diagram showing a fixing structure of the panel. [Figure 9] FIG. 9 is a diagram showing a process for manufacturing the fastener. [Figure 10] FIG. 10 is a diagram showing how the fixing brackets are hammered between the panel and the support. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a panel fixing bracket and a panel fixing structure according to an embodiment of the present invention will be described in detail with reference to the drawings.

[0023] First, a soundproof wall 10 using a fixing bracket 1 according to an embodiment of the present invention will be described with reference to Fig. 1. The soundproof wall 10 is a wall installed beside an expressway. The soundproof wall 10 is not limited to a soundproof wall, but may be any wall such as a soundproof wall or a light-shielding wall. As shown in Fig. 1, the soundproof wall 10 includes a plurality of posts 7 erected at a predetermined interval and having grooves 71 formed in the vertical direction y, panels 8 inserted into the opposing grooves 71 of the posts 7, and fixing brackets 1 inserted between the panels 8 and the posts 7.

[0024] The pillars 7 have grooves 71 formed in the vertical direction y, such as H-shaped steel. A plurality of pillars 7 are erected at predetermined intervals according to the width of the panels 8. Of course, the pillars 7 according to the present invention are not limited to H-shaped steel, but may be any pillar having grooves 71 formed in the vertical direction y, such as channel steel or I-shaped steel, as long as the panels 8 can be fitted in the opposing grooves 71.

[0025] The panel 8 is, for example, a soundproof panel, but is not limited thereto, and may be any panel such as a soundproof panel or a light-shielding panel. The panel 8 may be, for example, a rectangular frame body made of aluminum, and may be a frame body constituting a panel generally called a light-transmitting plate, in which a transparent plate made of acrylic resin or the like (not shown) is fitted inside and which transmits light through the transparent plate while reflecting noise. Of course, the panel 8 may be a frame body made of resin or rustproof steel instead of aluminum, or may be a general panel made of a box body filled with a sound-absorbing material that is not a light-transmitting plate. The present invention can also be applied to the panel 8 even if it is a panel made of a box body without a panel frame or a panel constituting a wall panel that is not a soundproof panel.

[0026] Next, a fixing bracket 1 according to an embodiment of the present invention will be described with reference to Figures 2, 3, 4 and 5. Figures 2(a) and 2(b) are perspective views showing a fixing bracket 1 according to an embodiment of the present invention. Figure 3 is a six-sided view of a fixing bracket 1 according to an embodiment of the present invention. Figure 4 is a view showing a fixing bracket 1 in which a second vertical side portion 3 is doglegged. Figure 5 is a view showing a fixing bracket 1 in which a groove portion 31 is provided in the second vertical side portion 3.

[0027] The fixing bracket 1 comprises a first vertical side portion 2 that extends vertically in a straight line in a vertical cross section, a second vertical side portion 3 that is folded back upward from a bent portion A that is the lower end of the first vertical side portion 2, a dog-legged third vertical side portion 4 that is folded back from a bent portion B that is the upper end of the second vertical side portion 3 toward the first vertical side portion 2, and a flange portion 5 that is folded back from a bent portion F that is the upper end of the first vertical side portion 2 toward the second vertical side portion 3. The fixing bracket 1 may also comprise an end portion 6 that is folded back from a bent portion D that is the lower end of the third vertical side portion 4 toward the first vertical side portion 2.

[0028] The first vertical side portion 2 is a portion formed of a linear flat plate extending vertically in a vertical cross section.

[0029] The second vertical side portion 3 is a portion consisting of a flat plate folded upward from a bent portion A which is the lower end of the first vertical side portion 2. The second vertical side portion 3 is continuous with the bent portion A which is the lower end of the first vertical side portion 2. The second vertical side portion 3 is formed so that the intersection angle with the first vertical side portion 2 is an acute angle which is less than 90 degrees, but is not limited to this and may be any angle.

[0030] The second vertical side portion 3 may be a portion made of a straight flat plate, but is not limited thereto, and may be a portion made of a dogleg-shaped flat plate that is bent at approximately the middle position of a flat steel plate into a dogleg-shaped vertical cross section, as shown in Fig. 4. This makes it possible to insert the fixing bracket 1 between the panel 8 and the support 7 and fix them by the elastic force of the metal plate, even if the distance between the panel 8 and the support 7 becomes greater.

[0031] 5, the second vertical side portion 3 may be formed with a groove 31. This makes it possible to improve the strength of the fastening metal fitting 1.

[0032] The third vertical side portion 4 is continuous with the bent portion B at the upper end of the second vertical side portion 3, and is a portion folded back from the bent portion B at the upper end of the second vertical side portion 3 toward the first vertical side portion 2. The third vertical side portion 4 is bent at an obtuse angle in a dogleg shape in vertical cross section at approximately the middle position of the flat steel plate, forming a bent portion C. The third vertical side portion 4 is formed so that the intersection angle with the second vertical side portion 3 is an acute angle less than 90 degrees, but is not limited to this and may be any angle.

[0033] The end portion 6 is continuous with the bent portion D which is the lower end of the third vertical side portion 4, and is a portion folded back from the bent portion D which is the lower end of the third vertical side portion 4 towards the first vertical side portion 2. The end portion 6 is, for example, a portion made of a linear flat plate.

[0034] The flange portion 5 is a portion made of a flat plate folded back from the bent portion F, which is the upper end of the first vertical side portion 2, toward the second vertical side portion 3. The flange portion 5 is continuous with the bent portion F, which is the upper end of the first vertical side portion 2. The flange portion 5 is formed so that the intersection angle with the first vertical side portion 2 is 90 degrees or more, but is not limited to this and may be any angle. The flange portion 5 is a portion made of a straight flat plate.

[0035] Furthermore, the flange portion 5 is provided with a wire insertion hole 51 through which a wire (not shown) for preventing the fixing bracket 1 from falling is inserted. This wire insertion hole 51 is provided for preventing the fixing bracket 1 from falling even if a wire (not shown) is inserted and the soundproof wall 10 is destroyed in an accident or the like, and is provided when the soundproof wall 10 is installed on an elevated bridge where a general road runs under an expressway or the like. Therefore, it goes without saying that this is not an essential feature of the present invention.

[0036] Next, a panel fixing structure 11 according to an embodiment of the present invention will be described with reference to Figures 6, 7, and 8. As shown in Figure 6, the fixing structure 11 is installed by hammering the fixing metal fitting 1 into the gap between the panel 8 and the flange 72 of the post 7 with a rubber hammer or the like. In this case, the fixing structure 11 is installed by striking the flange portion 5 of the fixing metal fitting 1 from direction G. This allows the fixing metal fitting 1 to be easily hammered in with a single strike. Also, as shown in Figure 7, by striking the flange portion 5 of the fixing metal fitting 1 from direction G, a hammering force H acts on the entire fixing metal fitting 1, so that the fixing structure 11 can be easily hammered in between the panel 8 and the post 7 even if the elastic force of the fixing metal fitting 1 is strong.

[0037] As shown in FIG. 8, the fixing structure 11 is configured such that the fixing bracket 1 is inserted between the panel 8 and the support 7, and the panel 8 inserted between the support 7 is fixed by the elastic force of the fixing bracket 1. In this case, the fixing bracket 1 is fixed in a predetermined position by pressing the panel 8 and the flange 72 of the support 7 by the restoring elastic force of the steel plate. The fixing structure 11 is inserted between the panel 8 and the support 7 from the bent portion A between the first vertical side portion 2 and the second vertical side portion 3, and is fixed by the first vertical side portion 2, the second vertical side portion 3, and the third vertical side portion 4 elastically deforming to exert an elastic force. In this case, the bent portion A between the first vertical side portion 2 and the second vertical side portion 3 and the bent portion B between the second vertical side portion 3 and the third vertical side portion 4 elastically deform in the opening direction to exert an elastic force, and is fixed. In addition, the fixing structure 11 can function as a leaf spring that exerts an elastic force by the restoring force of the L-shaped bend C of the third vertical side portion 4 and the bend D at the lower end of the third vertical side portion 4, which flatten and elastically deform.

[0038] The third vertical side portion 4 may be provided such that, when the fixing bracket 1 is inserted between the panel 8 and the support 7, a dogleg-shaped bent portion C of the third vertical side portion 4 comes into contact with the first vertical side portion 2 and a bent portion D, which is the lower end of the third vertical side portion 4, comes into contact with the second vertical side portion 3. The end portion 6 may be provided such that, when the fixing bracket 1 is inserted between the panel 8 and the support 7, a lower end E comes into contact with the first vertical side portion 2. This creates a repulsive force at the contact point, resulting in stronger elasticity.

[0039] Furthermore, the first vertical side portion 2 may be provided so as to come into contact with a flange 72 of the support 7 when the fixing bracket 1 is inserted between the panel 8 and the support 7. The second vertical side portion 3 may be provided so as to come into contact with the panel 8 when the fixing bracket 1 is inserted between the panel 8 and the support 7. The flange portion 5 is provided so as to come into contact with the upper surface of the panel 8 when the fixing bracket 1 is inserted between the panel 8 and the support 7, and has the function of latching the fixing bracket 1 to prevent it from falling.

[0040] Next, a manufacturing method of the fixing bracket 1 will be described with reference to Fig. 9. Fig. 9 is a diagram showing the manufacturing process of the fixing bracket 1. First, as shown in Fig. 9(a), the bent portion D of a metal plate is bent to form the end portion 6 of the fixing bracket 1. In this case, a bending process such as press bending may be used, but the metal plate may be bent by any bending process without being limited to this.

[0041] 9(b), the metal plate is bent at bent portion C and bent portion B to form the third vertical side portion 4. In this case, a bending process such as press bending may be used, but the present invention is not limited to this and the metal plate may be bent by any bending process.

[0042] 9(c), the bent portion F of the metal plate is bent to form the flange portion 5. In this case, a bending process such as press bending may be used, but the metal plate may be bent by any bending process.

[0043] 9(d), the bent portion A of the metal plate is bent to form the second vertical side portion 3. In this case, a bending process such as a pocket bending process may be used, but the metal plate may be bent by any bending process.

[0044] The above provides a detailed explanation of the panel fixing brackets, panel fixing structure, and method of manufacturing the fixing brackets according to this embodiment. However, the above-mentioned and illustrated embodiments are merely illustrative of one embodiment embodied in carrying out the present invention, and the technical scope of the present invention should not be interpreted in a limited manner based on these.

[0045] In particular, although the material of the fixing metal fittings has been exemplified as being made of steel, any material made of elastic metal plate may be used. Also, although the panel to be fixed has been exemplified as a soundproof panel having a panel frame, the present invention is not limited to soundproof panels and can be applied to any panel that is attached and fixed to a support pole having a groove in the vertical direction. [Explanation of symbols]

[0046] 1: Fixing bracket (panel fixing bracket) 10: Soundproofing wall 11: Fixed structure (panel fixed structure) 2:First vertical side 3:Second vertical side 31: Groove 4: Third vertical side 5: Flange part 51: Wire insertion hole 6: End 7: Strut 71: Groove 72: Flange 8: Panel 100: Fixing bracket 120: Side plate 130: Spring plate 150: Tabletop

Claims

1. A panel fixing bracket that fixes a panel inserted between upright supports by the elastic force of a bent metal plate, A first vertical side portion that extends vertically in a straight line in a vertical cross section; a second vertical side portion folded upward from a lower end of the first vertical side portion; a third vertical side portion having a dogleg shape that is folded back from an upper end of the second vertical side portion toward the first vertical side portion; a flange portion folded back from an upper end of the first vertical side portion toward the second vertical side portion. A panel fixing bracket characterized by:

2. The first vertical side portion, the second vertical side portion, and the third vertical side portion are inserted between the panel and the support column from a bent portion between the first vertical side portion and the second vertical side portion, so that the first vertical side portion, the second vertical side portion, and the third vertical side portion elastically deform to exert the elastic force. The panel fixing fitting according to claim 1 .

3. The third vertical side portion is inserted between the panel and the support column from a bent portion between the first vertical side portion and the second vertical side portion, so that a dogleg-shaped bent portion of the third vertical side portion contacts the first vertical side portion and a lower end of the third vertical side portion contacts the second vertical side portion. The panel fixing fitting according to claim 1 .

4. The second vertical side portion is doglegged. The panel fixing fitting according to claim 1 .

5. The third vertical side portion further includes an end portion folded back from a lower end thereof toward the first vertical side portion. The panel fixing fitting according to claim 1 .

6. A panel fixing structure including a plurality of posts each having a groove formed in a vertical direction, and a panel inserted into the grooves of the plurality of posts, the panel fixing structure comprising: The panel fixing metal fitting according to any one of claims 1 to 5 is inserted between the panel and the support, and the panel is fixed to the support. A panel fixing structure characterized by:

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