JP7410504B2 - Fastening fittings - Google Patents

Description

The present invention relates to a fastening fitting that can fasten two types of general-purpose wall boards with different shapes manufactured by two domestic and foreign wall board manufacturers , has excellent load-bearing strength and shape stability, and can reduce material costs. .

Architectural exterior wall boards are called by various names such as exterior wall materials, exterior wall boards, exterior wall boards, and siding, and are currently used for the exterior walls of many houses. The exterior wall board is attached to supporting members such as field boards, pillars, and beams of a building via fastening fittings.
The fasteners are mounted by being sandwiched within a gap inside the assembly structure between the lower end of the upper outer wall board and the upper end of the lower outer wall board.

The applicant previously proposed a fastening fitting that can be applied to any of two types of non-general-purpose fasteners manufactured by two major domestic exterior wall board manufacturing companies (Patent Document 1).
By providing a stepped portion on the downward facing plate portion of this fastening fitting , two types of exterior wall panels can be attached as shown in FIGS. 10(a) and 10(b) of Patent Document 1.
If there are fasteners that are common to these two types of exterior wall panels, the exterior wall panel contractor can install the exterior wall panels without changing the type of fasteners , which reduces the burden of stocking the fasteners . There is no need to manage leftover fittings . Moreover, there is no need to make a mistake in the type of fastening fittings used.

However, the downward plate portion cannot be further reinforced simply by forming bent steps on the downward plate portion by press molding.

Utility model registration No. 3145273

The problem to be solved by the present invention is to reduce the amount of materials used, while providing excellent load-bearing strength and shape stability of the horizontal panel portion, as well as shape stability of the downward facing panel portion. The aim is to provide a fastening fitting that can be applied to either of the two types of general-purpose exterior wall boards manufactured by the company.

A fastening fitting according to claim 1 has the following configuration.
This is a fastening fitting for architectural exterior wall boards that can be used with two types of general-purpose exterior wall boards with different shapes .
This fastening fitting has a back plate part that becomes the surface to be attached to the supporting member on the building side, and a horizontal part that is bent in whole or in part at the lower end or part of the height of the back plate part and directed forward. a plate part, a central part of the front end of the horizontal plate part that is broadly bent and directed upward, and a left and right part of the front end of the horizontal board part that is bent and directed directly downward. It has a downward facing plate portion.
Each low step portion is formed by drawing from the left and right locations on the front surface of the horizontal plate portion toward the upper end of each of the downwardly facing plate portions.
Each of the low step portions has a rectangular shape with greatly rounded corners in a plan view, and the bottom portion is a substantially flat surface, and the left and right sides of each of the low step portions are provided with the drawing process. There is a pressing surface ,
With the flat lower surface of each bulge corresponding to the lower step part on the lower surface of the front end of the horizontal board section placed on the inner protrusion of the lower step side outer wall board, the upper outer wall board is attached to the horizontal board section. Alternatively, place the upper outer wall board on top of the horizontal board with the rear surface of the horizontal board avoiding the bulge placed on the inner protrusion of the lower outer wall board. There are two support methods that can be selected.
The respective low step portions are located below the bent portions of the upper ends of the left and right downward facing plate portions, which face the left and right downward facing plate portions directly below, and the shape stability of the left and right downward facing plate portions is improved. It is being

A fastening fitting according to claim 2 has the following configuration.
(1) A configuration corresponding to claim 1 is provided.
(2) The bulge has a height of 1.8 mm to 10 mm.

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According to the fastening fitting according to the present invention, the amount of material used is reduced, while the load-bearing strength and shape stability of the horizontal board part, and the shape stability of the downward facing board part are excellent. This is a fastening fitting that can be applied to either of the two types of general-purpose exterior wall panels manufactured by the company.

(a) is a perspective view of the fastening fitting according to the first embodiment of the present invention, and (b) is a front view thereof. A perspective view similarly seen from the back side. (a) is a right side view of this fastening fitting , (b) is a sectional view taken along line AA in FIG. 1(b), and (c) is a sectional view taken along line BB in FIG. 1(b). (a) is a plan view of this fastening fitting , (b) is a plan view showing the front part of FIG. 4(a), (c) is a CC sectional view in FIG. 4(b), and (d) is a DD sectional view. (a) is a perspective view of the upwardly facing plate part supported and reinforced by the inclined side plate part, (b) is also a plan view, (c) is a front view, (d) is a left side view, and (e) is a right side view. (a) is a perspective view showing a state in the middle of vertically assembling exterior wall panels manufactured by Nichiha Corporation using fastening fittings according to an embodiment of the present invention, and (b) is a structural diagram of the butted exterior wall panels. FIG. 2 is a side cross-sectional view showing a state in which exterior wall panels manufactured by Nichiha Corporation are being assembled vertically using fastening fittings according to an embodiment of the present invention; FIG. (a) is a perspective view showing a state in which exterior wall panels manufactured by K-MU Co., Ltd. are assembled vertically using fastening fittings according to an embodiment of the present invention, and (b) is a structural diagram of the butted exterior wall panels. (a) is a side cross-sectional view showing a state in the middle of vertically assembling exterior wall panels manufactured by K-Mew Co., Ltd. using fastening fittings according to an embodiment of the present invention, and (b) is a structural diagram of the butted exterior wall panels. FIG. 7 is a perspective view of a fastening fitting according to a second embodiment of the present invention.

Hereinafter, preferred embodiments of the fastening fitting according to the present invention will be described in detail with reference to the drawings.

[ Fixing metal fittings of the first embodiment]
1 to 4 show a fastening fitting 1 according to a first embodiment of the present invention.
The fastening fitting 1 includes a back plate portion 2, left and right side plate portions 3L, 3R, left and right front plate portions 4L, 4R, horizontal plate portion 5, left and right downward facing plate portions 6L, 6R, and left and right lower plate portions. It is a press-molded product made of galvanized steel plate, which has step portions 7L, 7R, an upwardly facing plate portion 8, and left and right inclined plate portions 9L, 9R as main parts.

The back plate portion 2 has a rectangular shape and serves as a surface for attaching the fastening fitting 1 to a support member on the building side.
Approximately in the center of the back plate portion 2 is provided an opening 22 through which the mounting wood screws are inserted.
Although not shown, the surface around the opening 22 in the back plate portion 2 may be an inclined surface protruding forward so that the installation work can be performed by inserting the wood screws slightly diagonally downward.
Apertures 23, 23 are provided on the left and right sides of the opening 22, through which the mounting nails are inserted.
At the upper part of the back plate part 2, a reinforcing part P1 having a single convex step shape is formed extending to both left and right ends to prevent the back plate part 2 from warping and improve its strength.

The side plate parts 3L and 3R are formed by bending both end edges of the back plate part 2 forward.
The side plate parts 3L, 3R are formed with reinforcing parts P3, P3 having a single uneven shape that is long in the front-rear direction, and the reinforcing parts P3, P3 prevent the side plate parts 3L, 3R from warping or twisting. .

The front plate portions 4L, 4R are formed by bending portions along the front edge portions of the side plate portions 3L, 3R in the lateral direction away from each other, and have a short width.
The front plate portions 4L and 4R serve as surfaces along the back surface of the outer wall board.

The horizontal plate portion 5 is formed by bending the lower edge of the back plate portion 2 forward at a portion where the central portion remains.
The front portion of the horizontal plate portion 5 projects further forward than the side plate portions 3L, 3L, and further protrudes laterally to a position 7 in front of the front plate portions 4L, 4R.
The surface of the horizontal plate portion 5 that protrudes in the front and lateral direction becomes a surface that supports the inner lower end surface of the upper outer wall board.

A substantially rectangular opening 51 is formed from the center surface of the horizontal plate portion 5 to the rear end.
When the opening 51 is provided, a back plate tongue portion 21 is formed below the back plate 2.
At the left and right positions of the horizontal plate portion 5, reinforcement portions P4, P4 having an uneven shape extending to the lower part of the back plate 2 are provided.
The reinforcing portions P4, P4 suppress downward deformation of the horizontal plate portion 5 due to external pressure loads.
The external pressure resistance load of the horizontal plate portion 5 is met by being supported by lower support portions 31L and 31R, which are formed by cutting and raising portions of the side plate portions 3L and 3R inward.

The fastening fitting 1 is attached to the support member with the back plate 2, the rear ends of the left and right side plates 3L and 3R, and the back plate tongue portion 21 aligned along the support member.

The upward plate part 8 is an inclined surface formed by bending the central part of the front edge of the horizontal plate part 5 diagonally upward.
In FIG. 4(a), the inclination angle θ of the upwardly facing plate portion 8 is approximately 27°, and this inclination angle is the part that pinches the inner protrusion at the lower end of the outer wall plate from the front.
The front surface of this inner protrusion has an inclination angle, and the inclination angle of the upwardly facing plate part 8 is adjusted to this inclination angle.
The hatched portion shown in FIG. 4(a) becomes a pressing surface when drawing the low step portions 7L and 7R, which will be described later.

As shown in FIG. 5, the upwardly facing plate part 8 has an inclined surface in which the lower end edge 8a is located slightly rearward than the upper end edge 8b when viewed from the side, and the upper end edge 8a when viewed from the front. 8b has a trapezoidal shape that is shorter in width than the lower end edge 8a.

As shown in FIG. 1, FIG. 3, FIG. 4, and FIG. They are connected by inclined side wall portions 9L and 9R having a narrow triangular shape when viewed.
The inclined side wall portions 9L and 9R are formed by a drawing process that accompanies the press start-up process of the upward facing plate portion.

As shown in FIGS. 1, 3, and 4, the left and right portions of the front end of the horizontal plate portion are bent to provide downward plate portions 6L and 6R directed directly below.
As shown in FIGS. 1, 3, and 4, horizontally elongated shallow low step portions 7L and 7R are formed in the downwardly extending plate portion near the front end of the horizontal plate portion 5 and near both left and right ends. ing.
Although the low step portions can be formed by general press working, the low step portions 7L and 7R of the fastening fitting 1 in the embodiment of the present invention are formed by drawing work. The low step portions 7L, 7R have a rectangular shape with two rear corners largely rounded in plan view, the bottom surface is a substantially flat surface, and the front of the low step portions 7L, 7R is open.
As shown in FIGS. 3(b), (c) and 4(d), the low step portions 7L and 7R are located below the bent portion 6a where the upper ends of the left and right downward facing plate portions 6L and 6R are located. ing.

When the horizontal plate portion 5 is viewed from the bottom side, the low step portions 7L and 7R appear as bulged portions 71L and 71R.
The height h of the bulges 71L and 71R is set to a height that contacts the upper surface of the inner protrusion at the upper end of the lower outer wall board. More specifically, this height h is, for example, 1 . It is 8 to 10 mm.

The rear surfaces of the bulging portions 71L and 71R are located closer to the front side than the inclined surface that becomes the front surface of the inner protrusion at the upper end of the lower outer wall board.

The fastening fitting 1 is a common fastening fitting that is compatible with both the installation of a general-purpose exterior wall board manufactured by Nichiha Corporation and the installation of a general-purpose exterior wall board manufactured by K-Mew Corporation.

FIGS. 6(a), 7(a), and 7(b) show how general-purpose exterior wall panels manufactured by Nichiha Corporation are installed.
Among the general-purpose exterior wall boards manufactured by Nichiha Corporation, there is one of the type shown in FIG. 6(b), which has a butted structure consisting of the lower end of the upper exterior wall board 100A and the upper end of the lower exterior wall board 100B.
The lower end of the upper outer wall board 100A and the lower outer wall board 100B have the same shape.
As shown in FIG. 6(b), the front surface of the inner protrusion 120 at the upper end of the outer wall board 100B is a slope 121.

FIGS. 8(a), 9(a), and 9(b) show how general-purpose exterior wall panels manufactured by K-MU Co., Ltd. are installed.
Some of the general-purpose exterior wall boards manufactured by K-MU Co., Ltd. have a structure shown in FIG. 8 in which the lower end of the upper exterior wall board 200A and the upper end of the lower exterior wall board 200B abut against each other.
The upper outer wall board 200A and the lower outer wall board 200B have the same shape.
As shown in FIG. 8(b), the front surface of the inner protrusion 220 at the upper end of the lower outer wall board 200B is a vertical surface 221.
Both outer wall boards 200A,200BIn this case, when the outer opposing surfaces are butted, there is a gap between the opposing end surfaces of the inner protrusions 210 and 220 of both steps.
As shown in FIGS. 8(a), 9(a), and (b), the lower outer wall board 200B manufactured by K-MU Co., Ltd., which has this butt structure, has the upper surface of the inner protrusion 220 in the bulges 7L and 7R. in contact with the bottom surface ofinThe fastening fitting 1 is attached.
As described above, the fastening metal fitting 1 according to the embodiment of the present invention is provided on the lower surface of the front end of the horizontal plate portion 5, as shown in FIGS. , the upper outer wall plate 100A is placed on the horizontal plate portion 5 with the flat lower surfaces of the respective bulging portions 71L and 71R corresponding to the lower step portions 7L and 7R placed on the inner protrusion 120 of the lower outer wall plate 100B. As shown in FIGS. 8(a)(b) and 9(a)(b), the rear surface of the horizontal plate portion 5 avoiding the bulging portions 71L and 71B may be placed on the lower outer wall. Two supporting methods can be selected, in which the upper outer wall board 200A is placed on the horizontal board part 5 while being placed on the inner protrusion 220 of the board 200B..

[Second embodiment fastening fitting ]
FIG. 10 shows a fastening fitting 1A of the second embodiment.
This fastening fitting 1A has a structure in which left and right side plates are not provided and the front and rear widths are narrow. The other parts are common to the fastening fitting 1 of the first embodiment.

The fastening fitting according to the present invention is used in the field of constructing exterior wall panels of buildings such as houses.

1... Fastening metal fittings , 2... Back plate, 3L, 3R... Side plate part, 4L, 4R... Front plate part, 5... Horizontal plate part, 6L, 6R... Downward plate part, 6a... Bent part, 7L, 7R... Low step part, 71L, 71R... bulging part, 8... upward plate part, 9L, 9R... inclined side plate part

Claims (1)

A fastening fitting for architectural exterior wall boards that can be used with either of two types of general-purpose exterior wall boards with different shapes,
A back plate part that becomes a surface to be attached to a supporting member on the building side, a horizontal plate part whose lower end or part of the lower end or part of the height is bent and directed forward; It has an upwardly facing plate part in which the central part of the front end of the plate part is broadly bent and directed upward, and a downwardly facing board part in which the left and right parts of the front end of the horizontal board part are bent and directed directly downward. death,
each low step portion is formed by drawing from the left and right locations on the front surface of the horizontal plate portion toward the upper end of each of the downwardly facing plate portions,
Each of the low step portions has a rectangular shape with greatly rounded corners in a plan view, and the bottom surface is a substantially flat surface. There is a pressing surface, and with the flat lower surface of each bulge corresponding to the low step part on the lower surface of the front end of the horizontal board section placed on the inner protrusion of the lower step side outer wall board, the upper step side outer wall board is placed. on top of the horizontal board, or with the rear surface of the horizontal board avoiding the bulging part placed on the inner protrusion of the lower external wall board, place the upper external wall board on the horizontal board. There are two support methods to choose from: placing it on top of the
The respective low step portions are located below the bent portions of the upper ends of the left and right downward facing plate portions, which face the left and right downward facing plate portions directly below, and the shape stability of the left and right downward facing plate portions is improved. A fastening fitting characterized by:

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