JP7514657B2 - Structure to prevent lateral shifting of exterior wall materials - Google Patents

Description

This disclosure relates to a structure that prevents lateral shifting of exterior wall materials.

In the past, in technology for attaching exterior wall materials to a building frame, a technology has been disclosed in which the fastening brackets that secure the exterior wall materials to the building frame are given a function to prevent the exterior wall materials from shifting sideways, so that the exterior wall materials are less likely to shift sideways when the building shakes due to an earthquake or the like (see, for example, Patent Document 1).

JP 2007-321510 A

However, when attaching a fixing bracket with added functionality to prevent lateral displacement to a protruding corner of a building, there is a possibility that the end of the fixing bracket may protrude outside the exterior wall material. If the end of the fixing bracket protrudes outside, the configuration for fitting the fixing bracket into the building becomes complicated. For this reason, there is a demand for a simple structure that can prevent lateral displacement of exterior wall materials placed at protruding corners.

The present disclosure aims to provide a simple structure for preventing lateral displacement of exterior wall materials that can prevent lateral displacement of exterior wall materials placed at protruding corners.

This disclosure relates to a structure for preventing lateral displacement of an exterior wall material, comprising an exterior wall material to be placed at a protruding corner of a building, a fixing member for fixing the exterior wall material to the building frame, and a lateral displacement prevention member that is separate from the fixing member and has an end face opposing portion that is placed opposite the end face of the exterior wall material on the protruding corner side in the lateral direction to prevent lateral displacement of the exterior wall material.

A diagram showing a structure for preventing lateral displacement of an exterior wall material in one embodiment. 1 is a perspective view showing a state in which a lateral displacement prevention bracket is attached to a protruding corner portion where an exterior wall material fixed by a fixing bracket is placed. FIG. This figure shows the installation state when a lateral displacement prevention bracket is attached to the lower of two exterior wall materials that are connected vertically. This is a plan view showing the state in which anti-lateral displacement fittings are attached to the protruding corner portion where the exterior wall material is placed. 1 is a perspective view showing a state in which a lateral displacement prevention bracket is attached to a protruding corner portion where an exterior wall material is placed. FIG. 1 is a perspective view showing a state in which the anti-lateral displacement fitting has been removed from the protruding corner portion where the exterior wall material is placed. FIG.

The following describes in detail an embodiment of the present disclosure with reference to the drawings. As shown in FIG. 1, the lateral displacement prevention structure 1 for the exterior wall material 2 is a structure that prevents lateral displacement of the exterior wall material 2 at a corner portion 10 of a building 11 to which multiple exterior wall materials 2 are attached.

As shown in Figures 1 to 3, the lateral displacement prevention structure 1 comprises a plurality of exterior wall materials 2, a plurality of spacers 3, corner joiners 4, a plurality of fixing brackets 5 (fixing members), and a plurality of lateral displacement prevention brackets 6 (lateral displacement prevention members). Note that in Figure 2, of two exterior wall materials 2 arranged consecutively in the vertical direction, the exterior wall material 2 arranged on the lower side is shown, and the exterior wall material 2 arranged on the upper side is not shown.

As shown in Figs. 1 and 2, the multiple exterior wall materials 2 are arranged at the corner 10 of the building 11. The multiple exterior wall materials 2 are formed with a thickness, have a width in the vertical direction, and extend in the horizontal direction. The exterior wall materials 2 are so-called siding panels that are long and have a longitudinal direction extending in the horizontal direction. The multiple exterior wall materials 2 are arranged parallel to one surface 101 and another surface 102 that are formed perpendicularly across the corner of the column 100 as the building frame, and the ends in the horizontal direction extend toward the corner 10 of the building 11. As shown in Fig. 3, the multiple exterior wall materials 2 are arranged continuously in the vertical direction at the corner 10 of the building 11. In this embodiment, the multiple exterior wall materials 2 are attached to the column 100 using, for example, a sealingless construction method that does not use a sealing material.

As shown in FIG. 3, each of the exterior wall materials 2 has a lower end mating section 21 formed at the lower end and an upper end mating section 22 formed at the upper end. When the exterior wall materials 2 are arranged in a continuous vertical manner, the lower end mating section 21 of the exterior wall material 2 arranged on the upper side and the upper end mating section 22 of the exterior wall material 2 arranged on the lower side are combined so that the two exterior wall materials 2 are arranged in a continuous vertical manner.

As shown in FIG. 3, the lower end fitting portion 21 is formed in a shape in which the back surface 2b side is cut out at the lower end of the exterior wall material 2. The lower end fitting portion 21 has a lower end surface side downward extension portion 211 formed on the front surface 2a side at the lower end of the exterior wall material 2, and a lower end surface side downward protrusion portion 212 formed on the back surface 2b side and positioned above the lower part of the lower end surface side downward extension portion 211.

The lower end surface downward extension 211 is formed on the surface 2a side of the exterior wall material 2, extending downward. A surface lower end 211a is formed at the lower end of the lower end surface downward extension 211. The surface lower end 211a is positioned in contact with the surface upper end 222a of the upper end surface upper extension 222 of the upper end fitting portion 22.

The lower end back surface downward protrusion 212 is formed on the back surface 2b side of the exterior wall material 2, protruding downward with a length shorter than the lower end front surface downward extension 211. A back surface lower end 212a is formed at the lower end of the lower end back surface downward protrusion 212. The back surface lower end 212a is positioned opposite the back surface upper end 221a of the upper end back surface upper extension 221 of the upper end fitting portion 22.

As shown in FIG. 3, the upper end fitting portion 22 is formed in a shape in which the surface 2a side is cut out at the upper end of the exterior wall material 2. The upper end fitting portion 22 has an upper end back surface side upward extension portion 221 formed on the back surface 2b side at the upper end of the exterior wall material 2, and an upper end surface side upward extension portion 222 formed on the surface 2a side and located lower than the upper part of the upper end back surface side upward extension portion 221.

The upper end back surface side upward extension 221 is formed on the back surface 2b side of the upper end fitting portion 22, extending upward. The upper end of the upper end back surface side upward extension 221 is formed with a back surface side upper end 221a. The back surface side upper end 221a is arranged opposite the back surface side lower end 212a of the lower end back surface side downward protrusion 212 of the lower end fitting portion 21. When the lateral displacement prevention bracket 6 is attached, the first fall prevention protrusion 64 (described later) and the second fall prevention protrusion 65 (described later) of the lateral displacement prevention bracket 6 are arranged to abut against the upper surface of the back surface side upper end 221a (see FIG. 2).

As shown in FIG. 3, the upper end surface side upward extension 222 is formed on the surface 2a side of the upper end fitting portion 22, extending upward at a length shorter than the upper end back side upward extension 221. A surface side upper end 222a is formed at the upper end of the upper end surface side upward extension 222. The surface side upper end 222a is positioned in contact with the surface side lower end 211a of the lower end surface side downward extension 211 of the lower end fitting portion 21.

As shown in FIG. 1, the corner joint 4 is placed at the corner 10 of the building 11. The corner joint 4 is formed, for example, by bending a single metal plate. The corner joint 4 is formed so as to cover the end of the exterior wall material 2 on the corner 10 side. The corner joint 4 is formed to extend vertically along the corner of the column 100, which serves as the building structure, and is attached to the column 100 via the spacer 3.

As shown in FIG. 1, the spacer 3 is arranged along one surface 101 and another surface 102 that are formed perpendicular to each other and sandwich the corner of the column 100. One surface of the spacer 3 is fixed to the one surface 101 and the other surface 102 of the column 100. The outside corner joiner 4 is fixed to the other surface of the spacer 3.

The corner joiner 4 has a pair of fixing plate portions 41, a pair of water return portions 42, a connecting portion 43, and a pair of L-shaped protrusions 44.

The pair of fixing plate parts 41 are each formed to extend parallel to one surface 101 or the other surface 102 of the pillar 100 from a position that is a predetermined distance away from the corner of the pillar 100 on the outside of the extension of the diagonal of the pillar 100. The pair of fixing plate parts 41 are arranged perpendicular to each other, forming an L-shape overall. The pair of fixing plate parts 41 are each fixed to a spacer 3 that is fixed to the one surface 101 and the other surface 102 of the pillar 100. The pair of fixing plate parts 41 are fixed to the pillar 100 by being fixed to the spacer 3 that is fixed to the pillar 100.

The pair of water return sections 42 are each arranged at the end of the fixed plate section 41 opposite the protruding corner section 10 of the building 11. The water return sections 42 are formed by folding back the end of the fixed plate section 41 opposite the protruding corner section 10 of the building 11 so that it returns to the protruding corner section 10 side of the building 11.

The connecting portion 43 is formed in a plate shape that extends a predetermined length from the corners of the L-shaped portions of the pair of fixing plate portions 41 at the corner portion 10 of the column 100 to the outside on the extension of the diagonal line of the column 100. The connecting portion 43 connects the corners of the L-shaped portions of the pair of fixing plate portions 41 to the pair of L-shaped protrusions 44.

The pair of L-shaped protrusions 44 are each formed as an L-shaped plate in a plan view with the exterior wall material 2 side open. The pair of L-shaped protrusions 44 are each connected to the outer end of the connecting portion 43 and are arranged on one surface 101 side or the other surface 102 side of the column 100.

The pair of L-shaped protrusions 44 each have a first extension plate 441 and a second extension plate 442. The first extension plate 441 extends a predetermined length from the outer end of the connecting portion 43 away from the one surface 101 and the other surface 102 of the pillar 100. The second extension plate 442 extends a predetermined length from the outer end of the first extension plate 441 in parallel to the one surface 101 or the other surface 102 of the pillar 100.

The multiple fixing brackets 5 each fix the exterior wall material 2 to the spacer 3. As a result, the multiple fixing brackets 5 each fix the exterior wall material 2 to the column 100 via the spacer 3. The fixing brackets 5 fix the exterior wall material 2 to the spacer 3 by being fixed to the spacer 3 with screws while holding the exterior wall material 2 at a mid-way position in the lateral direction on one face 101 or the other face 102 of the column 100.

Each of the multiple anti-lateral displacement fittings 6 prevents lateral displacement of the exterior wall material 2 fixed by the fixing fittings 5. As shown in Figures 1 and 2, the anti-lateral displacement fittings 6 are made of separate members from the fixing fittings 5.

The multiple anti-lateral displacement fittings 6 are arranged on one side 101 of the column 100 or the other side 102 of the column 100, sandwiching the protruding corner 10 of the building 11, at the protruding corner 10 of the building 11. The anti-lateral displacement fittings 6 arranged on the one side 101 of the column 100 and the anti-lateral displacement fittings 6 arranged on the other side 102 of the column 100 are formed in a symmetrical shape. The anti-lateral displacement fittings 6 are fixed to the protruding corner joiner 4 and the spacer 3 with screws, as shown in Figures 1 and 2.

In this embodiment, the lateral displacement prevention metal fittings 6 arranged on one surface 101 of the pillar 100 will be described. The lateral displacement prevention metal fittings 6 arranged on the other surface 102 of the pillar 100 have the same configuration as the lateral displacement prevention metal fittings 6 arranged on the one surface 101 of the pillar 100, except that they are symmetrical in shape. Therefore, in this embodiment, the lateral displacement prevention metal fittings 6 arranged on the one surface 101 of the pillar 100 will be described, and a description of the lateral displacement prevention metal fittings 6 arranged on the other surface 102 of the pillar 100 will be omitted.

As shown in Figures 4 to 6, the lateral displacement prevention fitting 6 has a flat base plate portion 61 (vertically extending plate) extending in the vertical direction, a bent plate portion 62 formed by bending the lower part of the end of the base plate portion 61 on the protruding corner portion 10 side toward the opposite side to the pillar 100, a support plate portion 63 formed by bending the end of the bent plate portion 62 opposite the base plate portion 61 toward the protruding corner portion 10 side so that it is parallel to the base plate portion 61, a first fall prevention protruding piece 64 (fall prevention portion), a second fall prevention protruding piece 65 (fall prevention portion), a lateral displacement prevention end surface opposing piece 66 (end surface opposing portion), and a tilt prevention protruding piece 67 (protruding portion).

As shown in Figures 4 and 5, the base plate 61 is formed in a plate shape extending in the vertical direction parallel to one surface 101 of the column 100. The base plate 61 is disposed between the exterior wall material 2 and the column 100. In this embodiment, the base plate 61 is disposed between the exterior wall material 2 and the fixing plate portion 41 of the corner joiner 4, and is thus disposed between the exterior wall material 2 and the column 100.

As shown in Figures 5 and 6, the base plate 61 has an upper extension piece 611 that extends at the upper part to the opposite side to the corner portion 10. A first fall prevention protrusion 64 is formed at the lower end of the upper extension piece 611. The first fall prevention protrusion 64 is formed in a plate shape that protrudes horizontally from the lower end of the upper extension piece 611 to the opposite side to the column 100. The first fall prevention protrusion 64 is positioned in contact with the upper surface of the back side upper end 221a of the upper end back side upper extension portion 221 of the upper end mating portion 22 of the exterior wall material 2 when the lateral displacement prevention bracket 6 is attached to the column 100.

The lower part of the base portion 61 opposite the protruding corner 10 is cut out in a square shape below the upper extension piece 611. As shown in Figures 4 to 6, a plate-shaped anti-tilt protrusion 67 is formed at the lower end of the cut-out part on the lower side opposite the protruding corner 10 of the base portion 61. The anti-tilt protrusion 67 protrudes from the lower end of the base portion 61 opposite the protruding corner 10 towards the exterior wall material 2 opposite the column 100, and is formed in a plate shape extending in the vertical direction.

The bent plate portion 62 and the support plate portion 63 are arranged at the bottom of the base plate portion 61, as shown in Figures 5 and 6. A second fall prevention protrusion 65 is formed at the upper end of the support plate portion 63. The second fall prevention protrusion 65 is formed in a plate shape that protrudes horizontally from the upper end of the support plate portion 63 to the opposite side to the column 100. The second fall prevention protrusion 65 is formed at the same height as the first fall prevention protrusion 64. The second fall prevention protrusion 65 is arranged in contact with the upper surface of the back side upper end portion 221a of the upper end back side upper extension portion 221 of the upper end mating portion 22 of the exterior wall material 2 when the lateral displacement prevention bracket 6 is attached to the column 100.

As shown in Figures 5 and 6, a lateral displacement prevention end surface facing piece 66 is formed at the lower end of the end of the support plate part 63 on the side of the protruding corner part 10. The lateral displacement prevention end surface facing piece 66 is formed in a plate shape extending from the lower end of the end of the support plate part 63 on the side of the protruding corner part 10 to the opposite side of the column 100. The lateral displacement prevention end surface facing piece 66 is arranged opposite the end surface 23 on the lateral protruding corner part 10 side of the exterior wall material 2. As a result, the lateral displacement prevention end surface facing piece 66 prevents the exterior wall material 2 from shifting laterally. The lateral displacement prevention end surface facing piece 66 may be arranged in contact with the end surface 23 on the lateral protruding corner part 10 side of the exterior wall material 2, or may be arranged away from the end surface 23 on the lateral protruding corner part 10 side of the exterior wall material 2.

As shown in FIG. 3, the upper end 661 of the lateral displacement prevention end surface opposing piece 66 of the lateral displacement prevention bracket 6, which prevents lateral displacement of the exterior wall material 2 arranged below, is positioned so as to be located lower than the surface side lower end portion 211a of the lower end surface side downward extension portion 211 of the exterior wall material 2 arranged above. This makes it possible to prevent the lateral displacement prevention end surface opposing piece 66 of the lateral displacement prevention bracket 6 from interfering with the upper exterior wall material 2 when fixing the lower exterior wall material 2 and attaching the lateral displacement prevention bracket 6, and then fixing the upper exterior wall material 2.

Next, we will explain the construction method of the structure 1 to prevent lateral displacement of the exterior wall material 2. First, at the corner 10 of the building 11, the corner joiner 4 (see Figure 1) is fixed with screws to the spacer 3 fixed to one surface 101 of the pillar 100 and the spacer 3 fixed to the other surface 102.

Next, the exterior wall material 2 is fixed to the spacer 3 fixed to the pillar 100 using the fixing bracket 5. In this embodiment, first, of the exterior wall materials 2 arranged vertically, the exterior wall material 2 arranged on the lower side is fixed to the spacer 3 fixed to the pillar 100 using the fixing bracket 5.

Next, from the state shown in FIG. 6, the lateral displacement prevention bracket 6 is moved from the upper side to the lower side so that the base portion 61 of the lateral displacement prevention bracket 6 is inserted between the fixed plate portion 41 of the corner joiner 4 and the exterior wall material 2. Then, as shown in FIG. 5, the first fall prevention protrusion 64 and the second fall prevention protrusion 65 are placed in contact with the back surface upper end portion 221a of the upper end back surface upper extension portion 221 of the upper end mating portion 22 of the exterior wall material 2, and the lateral displacement prevention bracket 6 is fixed to the spacer 3 with a screw as shown in FIG. 2. This fixes the lateral displacement prevention bracket 6 to the column 100.

By fixing the lateral displacement prevention bracket 6 to the column 100, the lateral displacement prevention end surface opposing piece 612 is positioned opposite the end surface 23 on the corner portion 10 side of the exterior wall material 2. This allows the lateral displacement prevention bracket 6 to prevent lateral displacement of the exterior wall material 2. In particular, when the exterior wall material 2 is fixed to the column 100 using a sealless method that does not use a sealant, as in this embodiment, the exterior wall material 2 is more likely to shift laterally when the building shakes due to an earthquake or the like, so it is effective to prevent lateral displacement of the exterior wall material 2 using the lateral displacement prevention end surface opposing piece 612 of the lateral displacement prevention bracket 6.

Next, after fixing the lateral displacement prevention bracket 6 to the pillar 100 to prevent lateral displacement of the lower exterior wall material 2, the upper exterior wall material 2 is fixed to the spacer 3 fixed to the pillar 100 with the fixing bracket 5. Then, the lateral displacement prevention bracket 6 to prevent lateral displacement of the lower exterior wall material 2 is fixed to the pillar 100. By repeating these steps, multiple lateral displacement prevention brackets 6 to prevent lateral displacement of multiple exterior wall materials 2 fixed to the pillars 100 of the building 11 can be fixed to the pillars 100.

According to this embodiment, the following effects are achieved. The lateral displacement prevention structure 1 for the exterior wall material 2 of this embodiment includes the exterior wall material 2 that is placed at the protruding corner 10 of the building 11, the fixing bracket 5 that fixes the exterior wall material 2 to the column 100, and the lateral displacement prevention bracket 6 that is made of a separate member from the fixing bracket 5 and has a lateral displacement prevention end face opposing piece 66 that is placed opposite the end face 23 on the lateral protruding corner 10 side of the exterior wall material 2 to prevent lateral displacement of the exterior wall material 2.

As a result, the lateral shift prevention end surface opposing pieces 66 can effectively prevent the lateral shift of the exterior wall material 2. In addition, because the lateral shift prevention brackets 6 are constructed as separate members from the fixing brackets 5, the lateral shift prevention brackets 6 can be attached after the exterior wall material 2 is fixed with the fixing brackets 5. This makes it possible to prevent lateral shift of the exterior wall material 2 placed at the protruding corner portion 10 with a simple configuration. In addition, because the lateral shift prevention brackets 6 can be attached after the exterior wall material 2 is fixed, the lateral shift prevention brackets 6 can be attached to match the lateral length of the exterior wall material 2 even if there is variation in the length of the end due to cutting of the lateral end of the exterior wall material 2.

In this embodiment, the lateral slippage prevention bracket 6 further has a first fall prevention protrusion 64 and a second fall prevention protrusion 65 that are arranged in contact with the upper surface of the lower end 211a of the lower end surface side downward extension 211 of the exterior wall material 2. This allows the lateral slippage prevention bracket 6 to be fixed to the column 100 in a state in which the lateral slippage prevention bracket 6 is prevented from falling when the lateral slippage prevention bracket 6 is attached. In addition, since the lateral slippage prevention bracket 6 can be fixed to the column 100 in a state in which the lateral slippage prevention bracket 6 is temporarily placed on the upper end of the exterior wall material 2, the construction work of fixing the lateral slippage prevention bracket 6 to the column 100 can be easily performed.

In this embodiment, the anti-lateral displacement bracket 6 further includes a base portion 61 that is disposed between the exterior wall material 2 and the column 100. Therefore, by inserting the base portion 61 between the exterior wall material 2 and the column 100, the anti-lateral displacement bracket 6 can be easily attached after the exterior wall material 2 is fixed with the fixing bracket 5.

In this embodiment, the lateral displacement prevention bracket 6 further has a tilt prevention protrusion 67 that protrudes from the base portion 61 toward the exterior wall material 2. As a result, when the lateral displacement prevention bracket 6 is inserted between the corner joiner 4 and the exterior wall material 2 when the lateral displacement prevention bracket 6 is attached, the tilt prevention protrusion 67 is positioned between the corner joiner 4 and the exterior wall material 2, so that the lateral displacement prevention bracket 6 can be prevented from tilting relative to the exterior wall material 2.

In this embodiment, the upper end of the lateral displacement prevention end surface opposing piece 66 of the lateral displacement prevention bracket 6 that prevents the lateral displacement of the exterior wall material 2 arranged on the lower side is positioned so as to be lower than the lower end of the exterior wall material 2 arranged on the upper side. This makes it possible to prevent the lateral displacement prevention end surface opposing piece 66 of the lateral displacement prevention bracket 6 from interfering with the upper exterior wall material 2 when fixing the lower exterior wall material 2 and attaching the lateral displacement prevention bracket 6, and then fixing the upper exterior wall material 2. Therefore, even when the lateral displacement prevention bracket 6 that prevents the lateral displacement of the lower exterior wall material 2 is attached, the upper exterior wall material 2 can be attached without the lateral displacement prevention bracket 6 getting in the way.

Note that this disclosure is not limited to the above-described embodiments, and any modifications, improvements, etc. that achieve the objectives of this disclosure are included in this disclosure.

For example, in the above embodiment, the fall prevention part includes two parts, the first fall prevention protruding piece 64 and the second fall prevention protruding piece 65, but is not limited to this. The fall prevention part may be configured with only one of the first fall prevention protruding piece 64 and the second fall prevention protruding piece 65, or may be configured with three or more members.

1. Structure for preventing lateral displacement of exterior wall material, 2. Exterior wall material, 5. Fixing bracket (fixing member), 6. Lateral displacement prevention bracket (lateral displacement prevention member), 10. Corner, 11. Building, 23. End face, 61. Base plate (vertical extension plate), 64. First fall prevention protrusion (fall prevention part), 65. Second fall prevention protrusion (fall prevention part), 66. Lateral displacement prevention end face opposing piece (end face opposing part), 67. Tilt prevention protrusion (protrusion), 100. Pillar (building structure)

Claims (4)

An exterior wall material to be placed at a corner of a building;
A fixing member for fixing the exterior wall material to a building skeleton;
a lateral displacement prevention member formed of a separate member from the fixing member, the lateral displacement prevention member having an end face opposing portion that is arranged opposing the end face of the lateral corner portion side of the exterior wall material to prevent lateral displacement of the exterior wall material; an upper side plate portion that is arranged on the upper side of the lateral displacement prevention member and whose lower end is arranged at the position of the upper end of the exterior wall material; a first fall prevention portion that protrudes horizontally from the lower end of the upper side plate portion and is arranged in contact with the upper surface of the upper end of the exterior wall material; a lower side plate portion that is arranged on the lower side of the lateral displacement prevention member and whose upper end is arranged at the upper end of the exterior wall material; and a second fall prevention portion that protrudes horizontally from the upper end of the lower side plate portion and is arranged in contact with the upper surface of the upper end of the exterior wall material ,
A structure for preventing lateral displacement of exterior wall materials , wherein the end surface opposing portion, the upper side plate portion, the first fall prevention portion, the lower side plate portion and the second fall prevention portion are integrally formed with the lateral displacement prevention member . 2. The structure for preventing lateral displacement of an exterior wall material according to claim 1 , wherein the lateral displacement prevention member further includes a vertical extension plate disposed between the exterior wall material and the building structure. The structure for preventing lateral displacement of an exterior wall material according to claim 2 , wherein the lateral displacement prevention member further has a protruding portion protruding from the vertical extension plate toward the exterior wall material. A plurality of the exterior wall materials are arranged continuously in the vertical direction,
A lateral displacement prevention structure for exterior wall materials as described in any one of claims 1 to 3, wherein an upper end of the end face opposing portion of the lateral displacement prevention member that prevents lateral displacement of the exterior wall material arranged below is positioned lower than a lower end of the exterior wall material arranged above .

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