Mounting brackets and mounting structures for exterior wall materials

Abstract

This increases the fastening force to the underlying steel material, preventing detachment and other issues. [Solution] The mounting bracket 1 for the exterior wall material comprises a main body 2 having an elongated hole 23 and an engaging portion 3 provided at one end of the main body 2. The engaging portion 3 is bent in a mountain shape relative to the first surface 21 of the main body 2 to form an engaging recess 30 in the width direction X perpendicular to the extension direction Y of the elongated hole 23, and comprises a plurality of claw portions 4 extending inward toward the inside of the engaging recess 30. The claw portions 4 extend in directions that intersect each other and are provided to clamp the part of the base steel material to be clamped.

Description

Technical Field

[0001] The present disclosure relates to a mounting fitting for an exterior wall material and a mounting structure for an exterior wall material using the same.

Background Art

[0002] Conventionally, as disclosed in Patent Document 1, while fixing a base steel material to a steel frame beam of a steel frame house, a mounting fitting is engaged with a lip portion of the base steel material and fixed to an exterior wall panel via a bolt to attach the exterior wall panel. This has been proposed.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] For example, when the exterior wall panel undergoes interlayer deformation with respect to a structural body such as a steel frame beam due to an earthquake or the like, there is a risk that the fastening force acting on the lip portion of the base steel material in the mounting fitting decreases or the engaging portion rides up on the lip portion.

[0005] The present disclosure has been made in view of the above problems, and its object is to provide a mounting fitting for an exterior wall material and a mounting structure for an exterior wall material that can increase the fastening force to the base steel material and can stably maintain the fixed state of the exterior wall panel.

Means for Solving the Problems

[0006] The present disclosure provides a mounting bracket for an exterior wall material, comprising a main body having an elongated hole and an engaging portion provided at one end of the main body, wherein the engaging portion is bent in a mountain shape with respect to a first surface which is one surface of the main body, to form an engaging recess extending in a width direction perpendicular to the extending direction of the elongated hole, and is provided with a plurality of claw portions extending toward the inside of the engaging recess, wherein the plurality of claw portions extend in directions intersecting each other and are provided to clamp a portion of the base steel material to be clamped.

[0007] Furthermore, in the mounting bracket, it is preferable that the multiple claw portions are arranged at least at both ends and the center in the width direction.

[0008] Furthermore, in the mounting bracket, the engaging recess is preferably provided with a first inclined portion that is continuous with the main body and slopes in a valley-like manner with respect to the first surface, and a second inclined portion that is continuous with the first inclined portion and slopes in a mountain-like manner with respect to the first inclined portion, with the two inclined portions having a U-shaped or V-shaped cross-section, and the plurality of claw portions preferably include a first claw portion provided on the first inclined portion and a second claw portion provided on the second inclined portion.

[0009] Furthermore, in the mounting bracket, it is preferable that at least one of the first claw portion and the second claw portion be provided in multiple quantities and arranged at both ends in the width direction.

[0010] Furthermore, in the mounting bracket, the first claw portion may be provided in the center of the first inclined portion in the width direction, and the second claw portions may be provided at both ends of the second inclined portion in the width direction.

[0011] Furthermore, in the mounting bracket, it is preferable that a protruding portion extending in the width direction is provided convexly on the second surface opposite to the first surface at the other end of the main body.

[0012] Furthermore, in the mounting bracket, it is preferable that the protruding portion is a rounded convex shape.

[0013] The mounting structure for exterior wall materials using the aforementioned mounting brackets for exterior wall materials also falls within the scope of the technical concept of this disclosure. Specifically, the mounting structure for exterior wall materials is characterized in that a mounting member is attached to the exterior wall material, the base steel material is supported by a beam disposed on the indoor side of the exterior wall material and the clamped portion is positioned facing the indoor side, the mounting bracket has an engaging portion that engages with the clamped portion of the base steel material, a plurality of claws that clamp and hold the clamped portion, and the mounting bracket is bolted to the mounting member via the elongated hole, thereby fixing the exterior wall material to the beam. [Effects of the Invention]

[0014] According to this disclosure, it is possible to increase the fastening force to the underlying steel material when using mounting brackets for exterior wall materials. [Brief explanation of the drawing]

[0015] [Figure 1] This is a plan view showing a mounting bracket according to an embodiment of the present disclosure. [Figure 2] Figure 1 is a side view of the mounting bracket. [Figure 3] Figure 1 is a perspective view of the mounting bracket, seen from diagonally above. [Figure 4] Figure 1 is a perspective view of the mounting bracket, seen from a diagonal downward angle. [Figure 5] Figure 1 is a front view of the mounting bracket. [Figure 6] This is a longitudinal cross-sectional view showing a mounting structure for an exterior wall material using a mounting bracket according to the embodiment of this disclosure. [Figure 7] Figure 6 is a front view of the mounting structure for the exterior wall material. [Modes for carrying out the invention]

[0016] The mounting bracket 1 according to an embodiment of the present disclosure will be described with reference to the drawings. FIGS. 1 to 5 show the mounting bracket 1 for an outer wall material according to an embodiment of the present disclosure. FIG. 1 is a plan view of the mounting bracket 1, FIG. 2 is a side view of the mounting bracket 1, FIG. 3 is a perspective view of the mounting bracket 1 seen obliquely from above, FIG. 4 is a perspective view of the mounting bracket 1 seen obliquely from below, and FIG. 5 is a front view of the mounting bracket 1.

[0017] The mounting bracket 1 includes a main body portion 2 and an engaging portion 3 provided continuously with the main body portion 2. The main body portion 2 has an overall shape of a substantially rectangular flat plate that is long in the Y direction in the drawing, and a long hole 23 is provided that is long in the Y direction. On the first surface 21, which is one surface of the main body portion 2, two ribs 24 project with the long hole 23 interposed therebetween. The ribs 24 are provided long in the extending direction Y of the long hole 23 and are formed in a convex shape with a rounded shape. An engaging portion 3 is provided at one end of the main body portion 2, and chamfered portions 27 are provided at the other end with both corner portions removed. One end of the rib 24 is provided with a length that reaches the engaging portion 3 and serves to reinforce the main body portion 2 and the engaging portion 3.

[0018] Further, a protruding strip portion 5 that extends long in the width direction X is provided at the other end of the main body portion 2. The protruding strip portion 5 projects on the second surface 22, which is opposite to the first surface 21. As shown in FIG. 4, the protruding strip portion 5 is formed in a convex shape with a single rounded shape and has no sharp corners. The second surface 22 of the main body portion 2 serves as a contact surface with the outer wall material or the mounting member of the outer wall material. The protruding strip portion 5 that projects on the second surface 22 serves to properly hold the mounting position of the mounting bracket 1. As shown in FIG. 3, on the side of the first surface 21 of the main body portion 2, the portion of the protruding strip portion 5 appears as a concave portion 51. [[ID=​The engaging portion 3 of the mounting fitting 1 is bent in a mountain shape with respect to the first surface 21 of the main body portion 2, and includes an engaging recess 30 extending in the width direction X orthogonal to the extending direction Y of the long hole 23. In the illustrated form, as shown in FIG. 5, the engaging recess 30 includes a first inclined portion 31 that is continuous with the main body portion 2 and is inclined in a valley fold with respect to the first surface 21, and a second inclined portion 32 that is continuous with the first inclined portion 31 and is inclined in a mountain fold with respect to the first inclined portion 31. The first inclined portion 31 and the second inclined portion 32 are provided so as to form a substantially U-shaped or substantially V-shaped cross section with rounded corners. The angle θ formed by the first inclined portion 31 and the second inclined portion 32 is set to be narrower than before, and can be, for example, 60 degrees.

[0020] The engaging portion 3 includes a plurality of claw portions 4 extending toward the inside of the engaging recess 30. In the mounting fitting 1 according to the present embodiment, as the claw portions 4, a first claw portion 41 and two second claw portions 42 are provided.

[0021] As shown in FIG. 3, the first claw portion 41 is provided on the first inclined portion 31. In this case, it is formed by bending a part of the first inclined portion 31 toward the inside of the engaging recess 30. An opening 25 penetrating through the front and back of the first inclined portion 31 is formed around the first claw portion 41. The first claw portion 41 is provided at the central portion in the width direction X of the first inclined portion 31.

[0022] As shown in FIG. 4, the second claw portion 42 is provided on the second inclined portion 32. In this case, it is formed by bending a part of the second inclined portion 32 toward the inside of the engaging recess 30. A slit-shaped opening 26 penetrating through the front and back of the second inclined portion 32 is formed around the second claw portion 42. In the illustrated form, the second claw portions 42 are provided at both ends in the width direction X of the second inclined portion 32, respectively.

[0023] Referring to Figure 5, both the first claw portion 41 and the second claw portion 42, which constitute the claw portion 4, extend in the direction from the first surface 21 side to the second surface 22 side of the main body portion 2. That is, if the first surface 21 is considered the upper surface and the second surface 22 is considered the lower surface, the base of the first claw portion 41, which is continuous with the first inclined portion 31, is located above, and the tip is located below. The first claw portion 41 extends at an angle to the first inclined portion 31 and is located inside the engaging recess 30. Similarly, the base of the second claw portion 42, which is continuous with the second inclined portion 32, is located above, and the tip is located below. The second claw portion 42 extends at an angle to the second inclined portion 32 and is located inside the engaging recess 30.

[0024] Furthermore, the first claw portion 41 and the second claw portion 42 are capable of gripping the lip portion 151 of the base steel material 15, which will be described later. The first claw portion 41 and the two second claw portions 42 extend in directions that intersect each other, and their tips are formed to grip the lip portion 151 of the base steel material 15 placed in the engagement recess 30. In a front view, the distance D shown in the figure between the tips of the first claw portion 41 and the second claw portions 42 is set to correspond to the thickness of the lip portion 151. The first claw portion 41 and the second claw portions 42 are spaced apart in the width direction X, but in the extension direction Y, for example, the distance D between the tips can be 3.5 mm.

[0025] Multiple claw portions 4, including the first claw portion 41 and the second claw portion 42, are evenly arranged in the width direction X of the mounting bracket 1. The lip portion 151 of the base steel material 15 is inserted into the engagement recess 30, so that the tip of the lip portion 151 is sandwiched between the multiple claw portions 4. At both ends in the width direction X, the second claw portion 42 abuts against the lip portion 151, and in the center of the width direction X, the first claw portion 41 abuts against the lip portion 151. The first claw portion 41 and the second claw portion 42 hold the lip portion 151 of the base steel material 15 by sandwiching it.

[0026] As a result, even if an external force in the rotational direction acts on the mounting bracket 1 centered on the bolt 6 inserted into the elongated hole 23 of the mounting bracket 1, the lip portion 151 is stably held by the multiple claw portions 4 evenly arranged in the width direction X, thus maintaining the engagement state with the base steel material 15. Furthermore, since the protruding portion 5 of the mounting bracket 1 is formed in a rounded convex shape, there is no risk of damaging the exterior wall panel 10 even if it comes into contact with the exterior wall panel 10, and a stable mounting state can be maintained.

[0027] Figures 6 and 7 show the mounting structure of the exterior wall material using the mounting bracket 1. Figure 6 is a vertical cross-sectional view, and Figure 7 is a front view as seen from the indoor side.

[0028] The mounting bracket 1 having the above-described configuration can be used to attach an exterior wall panel 10, which serves as an exterior wall material, to a base steel member 15 provided on the structural frame of a building. The exterior wall panel 10 is, for example, a precast concrete panel, with a decorative finish applied to its outdoor surface, and constitutes the exterior wall surface of the building.

[0029] As an example of the mounting structure, as shown in Figures 6 and 7, a lower support plate 14 is fixed to the upper surface of the upper flange 12 of the steel beam 11 via bolts and nuts, and a base steel member 15 is welded and fixed onto the lower support plate 14. The lower support plate 14 extends to the outdoor side, protruding from the lower surface of the base steel member 15. An upper support plate 16 is fixed to the lower surface of the lower flange 13 of the steel beam 11 via bolts and nuts, and the base steel member 15 is welded and fixed to the lower surface of the upper support plate 16. For the base steel member 15, for example, a channel steel having a lip portion 151 can be used. The base steel member 15 is positioned with the lip portion 151 facing the indoor side (steel beam 11 side).

[0030] An attachment rail 18 is provided on the exterior wall panel 10 along the height direction as an attachment member. The attachment rail 18 is made of, for example, channel steel or hat-shaped steel, and reinforces the exterior wall panel 10 and provides a joint for attachment fitting 1. The attachment fitting 1 is positioned along the attachment rail 18. When the attachment fitting 1 is fixed to the lower part of the exterior wall panel 10, the engaging portion 3 is positioned downward relative to the main body 2, and when it is fixed to the upper part of the exterior wall panel 10, the engaging portion 3 is positioned upward relative to the main body 2.

[0031] The mounting bracket 1 is bolted to the mounting rail 18 by screwing a bolt 6 through the elongated hole 23. An insert nut is provided on the mounting rail 18, and the bolt 6 is screwed in by aligning it with the axis of the insert nut. The engaging portion 3 of the mounting bracket 1 engages with the lip portion 151 of the base steel material 15, and by tightening the bolt 6, the exterior wall panel 10 is fixed to the steel beam 11. In this way, the exterior wall panel 10 can be fixed to the steel beam 11 by the simple operation of engaging the mounting bracket 1 with the lip portion 151 of the base steel material 15 and bolting it in place.

[0032] After the mounting bracket 1 is installed, a fibrous covering material 17 is fixed to the mounting rail 18 and the steel beam 11. The fibrous covering material 17 covers the indoor side of the exterior wall panel 10 and the exposed parts of the mounting rail 18 and the steel beam 11 from the indoor side. The fibrous covering material 17 is, for example, a felt-like rock wool with high fire resistance or glass wool made of glass fibers with heat insulation properties, and is flexible enough to be easily bent and adhere closely to each component.

[0033] In the mounting structure configured as described above, the mounting bracket 1 is fixed in a state where the first claw portion 41 and the second claw portion 42 of the engaging portion 3 sandwich the lip portion 151 from both sides in the extension direction Y, as shown in Figure 5. As a result, the movement of the elongated hole 23 in the extension direction Y is suppressed for the mounting bracket 1. Consequently, the engaging portion 3 is less likely to ride up onto the lip portion 151, preventing the mounting bracket 1 from falling off, and also suppressing the movement of the bolt 6 to the end of the elongated hole 23, thereby maintaining a stable mounting state.

[0034] Furthermore, the engaging portion 3 is engaged by having multiple claw portions 4 that grip the lip portion 151 of the base steel material 15. As a result, even if an external force acts on the mounting bracket 1 in a rotational direction centered on the bolt 6, the state in which these multiple claw portions 4 grip the lip portion 151 is maintained. For example, even if the exterior wall panel 10 is displaced between layers due to an earthquake or the like, the fastening force of the mounting bracket 1 is less likely to decrease, horizontal movement of the exterior wall panel 10 is suppressed, and the mounting bracket 1 is prevented from rotating and detaching from the base steel material 15, making it possible to stably maintain the mounting state of the exterior wall panel 10.

[0035] In the mounting bracket 1, the protruding portion 5 that projects from the second surface 22 of the main body portion 2 is a rounded convex shape. Therefore, even if inter-story displacement occurs, there is no risk of scraping the exterior wall panel 10 by contact with it, thus preventing damage to the exterior wall panel 10. Furthermore, since the protruding portion 5 is integrally attached to the main body portion 2 and projects from the second surface 22, it has high rigidity and is less susceptible to deformation. Consequently, the effect of properly maintaining the mounting position of the mounting bracket 1 can be sustained, and a stable mounting state can be maintained.

[0036] The mounting bracket 1 may be attached to the mounting rail 18 of the exterior wall panel 10 in advance, or the exterior wall panel 10 may be erected with the mounting bracket 1 in place, the engaging portion 3 may be engaged with the lip portion 151 of the base steel material 15, and the bolt 6 may be tightened to fix it in place. Furthermore, the arrangement and number of the first claw portion 41 and the second claw portion 42 provided on the engaging portion 3 of the mounting bracket 1 are not limited to the above configuration and may be arranged in any way toward the inside of the engaging recess 30. For example, the first claw portion 41 may be provided at both ends in the width direction X of the first inclined portion 31, and the second claw portion 42 may be provided in the center in the width direction X of the second inclined portion 32. In addition to precast concrete panels, various exterior wall materials such as extruded cement panels or ALC panels can be applied to the exterior wall panel 10. Furthermore, the fibrous covering material 17 that covers the indoor side of the exterior wall panel 10, the mounting rail 18, and the steel beam 11, etc., does not necessarily have to be fixed.

[0037] This disclosure is not limited to the embodiments described above, and various modifications are possible without departing from the technical essence thereof. All technical matters included in the technical idea described in the claims are subject to this disclosure. The embodiments described above are preferred examples, but various modifications can be realized from the disclosed content, and such modifications are also included in the technical scope described in the claims.

[0038] The following additional information is disclosed regarding the technical details described in the above embodiments.

[0039] (Note 1) These are mounting brackets for exterior wall materials, It comprises a main body having an elongated hole and an engaging portion provided at one end of the main body, The aforementioned engaging portion is It is bent in a mountain shape relative to the first surface, which is one of the surfaces of the main body, and is provided to form an engaging recess that extends in the width direction perpendicular to the extension direction of the elongated hole, It comprises a plurality of claw portions extending toward the inside of the engagement recess, The mounting bracket is characterized in that the multiple claw portions extend in directions that intersect each other and are provided to clamp the portion of the underlying steel material to be clamped.

[0040] (Note 2) In the mounting bracket described in Appendix 1, A mounting bracket characterized in that the multiple claw portions are arranged at least at both ends and the center in the width direction.

[0041] (Note 3) In the mounting bracket described in Appendix 1 or 2, The engagement recess is provided such that a first inclined portion, which is continuous with the main body and slopes in a valley-like manner with respect to the first surface, and a second inclined portion, which is continuous with the first inclined portion and slopes in a mountain-like manner with respect to the first inclined portion, have a cross-sectional shape of U or V. The mounting bracket is characterized in that the plurality of claw portions include a first claw portion provided on the first inclined portion and a second claw portion provided on the second inclined portion.

[0042] (Note 4) In the mounting bracket described in Appendix 3, A mounting bracket characterized in that at least one of the first claw portion and the second claw portion is provided in multiple quantities and arranged at both ends in the width direction.

[0043] (Note 5) In the mounting bracket described in Appendix 3, The first claw portion is provided in the center of the first inclined portion in the width direction, The mounting bracket is characterized in that the second claw portion is provided at both ends of the second inclined portion in the width direction.

[0044] (Note 6) In the mounting bracket described in any one of the appendices 1 to 5, The mounting bracket is characterized in that a protruding portion extending in the width direction is provided convexly on the second surface opposite to the first surface at the other end of the main body.

[0045] (Note 7) In the mounting bracket described in Appendix 6, The mounting bracket is characterized in that the aforementioned protruding portion is rounded and convex.

[0046] (Note 8) An exterior wall material mounting structure using mounting brackets described in any one of the appendices 1 to 7, The exterior wall material has mounting components attached to it. The aforementioned base steel material is supported by a beam installed on the indoor side of the exterior wall material, and the clamped portion is positioned facing the indoor side. The mounting bracket is configured such that the engaging portion engages with the clamped portion of the base steel material, and the multiple claw portions grip and hold the clamped portion. An exterior wall material mounting structure characterized in that the mounting bracket is bolted to the mounting member through the elongated hole, and the exterior wall material is fixed to the beam. [Explanation of Symbols]

[0047] 1 Mounting bracket 10. Exterior wall panels (exterior wall materials) 11 Steel beam 12 Upper flange 13 Lower flange 15. Base steel materials 151 Lip portion (part to be clamped) 2 Main body 21 Page 1 22 Side 2 23 long hole 24 Ribs 25, 26 Openings 27 Chamfered section 3 Engaging part 30 Engaging recess 31 1st slope part 32 2nd slope part 4. Claw part 41 1st claw part 42 2nd claw part 5 Projection part 51 Recess 6 volts

Claims

1. These are mounting brackets for exterior wall materials, It comprises a main body having an elongated hole and an engaging portion provided at one end of the main body, The aforementioned engaging portion is It is bent in a mountain shape relative to the first surface, which is one of the surfaces of the main body, and is provided to form an engaging recess that extends in the width direction perpendicular to the extension direction of the elongated hole, It comprises a plurality of claw portions extending toward the inside of the engagement recess, The mounting bracket is characterized in that the multiple claw portions extend in directions that intersect each other and are provided to clamp the portion of the underlying steel material to be clamped.

2. In the mounting bracket described in claim 1, A mounting bracket characterized in that the multiple claw portions are arranged at least at both ends and the center in the width direction.

3. In the mounting bracket described in claim 1, The engagement recess is provided such that a first inclined portion, which is continuous with the main body and slopes in a valley-like manner with respect to the first surface, and a second inclined portion, which is continuous with the first inclined portion and slopes in a mountain-like manner with respect to the first inclined portion, have a cross-sectional shape of U or V. The mounting bracket is characterized in that the plurality of claw portions include a first claw portion provided on the first inclined portion and a second claw portion provided on the second inclined portion.

4. In the mounting bracket described in claim 3, A mounting bracket characterized in that at least one of the first claw portion and the second claw portion is provided in multiple quantities and arranged at both ends in the width direction.

5. In the mounting bracket described in claim 3, The first claw portion is provided in the center of the first inclined portion in the width direction, The mounting bracket is characterized in that the second claw portion is provided at both ends of the second inclined portion in the width direction.

6. In the mounting bracket described in claim 1, The mounting bracket is characterized in that a protruding portion extending in the width direction is provided convexly on the second surface opposite to the first surface at the other end of the main body.

7. In the mounting bracket described in claim 6, The mounting bracket is characterized in that the aforementioned protruding portion is rounded and convex.

8. A mounting structure for an exterior wall material using a mounting bracket according to any one of claims 1 to 7, The exterior wall material has mounting components attached to it. The aforementioned base steel material is supported by a beam installed on the indoor side of the exterior wall material, and the clamped portion is positioned facing the indoor side. The mounting bracket is configured such that the engaging portion engages with the clamped portion of the base steel material, and the multiple claw portions grip and hold the clamped portion. An exterior wall material mounting structure characterized in that the mounting bracket is bolted to the mounting member through the elongated hole, and the exterior wall material is fixed to the beam.

Images