JPH0762380B2 - Outer wall structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to an outer wall structure formed by attaching a dry outer wall material on a new building or an existing outer wall through a specially shaped furring strip instead of a nail. It is about.

[Conventional technology]

The following structures have been adopted in order to renovate the outer wall type of new wooden constructions and new non-combustible buildings, or the outer wall of existing buildings and existing houses. That is, in the former case, the structure in which the fixing portion of the dry outer wall material is fixed to the furring strip made of wood, steel square bar, square pipe and C-shaped channel material with nails is common. In addition, in the case of wooden construction, a wooden furring is newly constructed when the dry outer wall material is vertically stretched. In the latter case, the existing outer wall is completely removed and the dry outer wall material is fixed to the furring strip with nails to form a new wall.
A structure in which an existing outer wall is used as a base, and a dry outer wall material is directly fixed to this with nails. A wooden furring strip and a C-shaped furring strip are fixed with nails and anchor bolts on the existing outer wall.
It had a structure in which a dry outer wall material was fixed to this with nails, screws, or the like.

[Problems to be solved by the invention]

However, when forming an outer wall in a new construction, it is necessary to fix the dry outer wall material by driving nails in the case of wooden construction, and in the non-combustible structure, the dry outer wall material is fixed on the furring strip made of steel with screw screws. Therefore, the construction efficiency is poor, and as a result, there is a disadvantage that the cost is increased due to the extension of the construction period. In addition, when renovating the existing outer wall, the cost of the structure is enormous, the renovation period is long, and the residence must be stopped. There were drawbacks such as. Further, the structure of (3) is not only difficult to apply to concrete or the like and is inferior in workability, but also has disadvantages such as waterproofness, dew condensation, corrosion of a fixture due to impermeability, and lack of heat insulation. further,
In this structure, the C-type channel is usually used, so the cost is high and there are many construction sites. In addition, the dry outer wall material was fixed by tapping screws at the portion in contact with the furring strip.
As a result, the work efficiency is poor, and there is a disadvantage that it is necessary to form a large fool hole especially when the expansion is large due to heat such as aluminum.

[Means for solving problems]

In order to eliminate such drawbacks, the present invention makes the furring edge into a hat shape or ladle shape, and forms a fixing piece for fixing the dry type outer wall material on the top surface of the furring edge so that the dry type outer wall material can be installed. Fixing piece of material Fitting groove and fixing piece of furring, male and female mating structure of dry type outer wall material is adopted, easy welding, shortening the construction period to reduce costs, and further skill in construction It is not necessary, and on top of that, fixtures such as nails are eliminated,
Further, the present invention proposes an outer wall structure that can be installed vertically and horizontally so that it can be attached so that the decorative surface does not change even if it is largely deformed by heat like a metal siding material made of aluminum.

〔Example〕

Hereinafter, an embodiment of an outer wall structure according to the present invention, for example, a repaired outer wall structure, will be described in detail with reference to the drawings. 1 (a) and 1 (b) are a partially cutaway perspective view showing a case where the outer wall structure according to the present invention is applied to a cement concrete wall, and a sectional view taken along the line ii, in which 1 is an existing outer wall, Concrete wall, mortar wall, tile wall, 2 is furring and existing outer wall 1
Vertically with a fixed pitch P, for example P300-450mm 2
0, for example, fixed via anchor bolts, screw screws, or nails. 7 is a dry type outer wall material, which is a metallic siding material 7a and a ceramic siding material 7b.
It consists of any one of the following. To further explain, the furring strip 2 is made of metal, synthetic resin, metal molded with synthetic resin in the shape shown in FIG. 2, or wood, wood chip molded product, roll molding, extrusion molding, It is formed by one kind of injection molding, pressing, cutting, or the like, or a combination of two or more kinds. That is, the furring strip 2 includes a fixing portion 3, a rising portion 4, a mounting surface 5, a fixing piece 6 formed by notching and bending the mounting surface 5 and projecting outward from the mounting surface 5, and a fixing portion 3. It is formed to be longer than the mounting hole 3a provided as necessary,
The length L is about 1818 mm to 7272 mm. More specifically, this fixing piece 6 is inserted into a fixing piece fitting groove 13 of a dry type outer wall material 7 to be described later to fix the dry type outer wall material 7 to the furring strip 2 and to fix it on the existing outer wall 1. Is a gap
A plurality of 6a are formed in the same direction at a predetermined pitch P ₁ . As shown in FIG. 3 as an example, a metal siding material 7a, the dry type outer wall material 7 has a sandwich structure including a surface material 8, a male connecting portion 9, a female connecting portion 10, a core material 17, and a back surface material 18. It was formed. That is, the surface material 8 is made of a kind of steel plate such as aluminum, stainless steel, galvalume, galfan, colored zinc iron plate or the like, or a synthetic resin plate, and the male connecting portion 9 formed at one edge is formed in a concave shape in the surface material 8. One end edge of the decorative surface 8a is projected outward, and an engaging groove 12 is formed by bending the tip of the insertion edge 11 inward and outward and bending it outward. When,
A fixed piece fitting groove 13 formed by the upper edge 12a of the engagement groove 12 and the insertion edge 11, and an extension portion 1 in which the lower edge 12b of the engagement groove 12 is extended outward.
It is formed from 4. Further, the female connecting portion 10 is formed by a fitting groove 15 in which the other end edge of the decorative surface 8a is formed inwardly in a U shape, and a fitting piece 16 formed by the fitting groove 15. Further, 14a is a tongue piece, which is provided as necessary. The core material 17 is to be filled in the gutter-shaped portion surrounded by the surface material 8, the male type connecting portion 9 and the male type connecting portion 10, and specifically, synthetic resin foam, for example, resin for polyurethane foam, phenol. Foam resin, polyisocyanurate foam resin, polystyrene foam, perlite coated with phenol foam resin,
Foams that are heated and pressurized to foam them, and flame-retardant materials, flame-retardant aids, (borax, sodium metaborate, antimony trioxide, calcium carbonate, aluminum hydroxide,
Bentonite, perlite grains, shirasu balloon, asbestos, various fibers), or one of rock wool, siding board, glass wool, gypsum board, wood wool cement board, etc. It functions as a heat insulating material, soundproofing material, and waterproof material. Further, the core material 17 in the vicinity of the male connecting portion 9 is formed by cutting out the fixing piece 6 of the furring strip 2 by an amount necessary for engaging with the fixing piece fitting groove 13 to form a concave groove 17a. Is. Back material 1
8 is, for example, asbestos paper, kraft paper, asphalt felt, metal foil (Al, Fe, Pb, Cu), synthetic resin sheet, rubber sheet, cloth sheet, gypsum paper, aluminum hydroxide paper,
It consists of one or more kinds of glass fiber nonwoven fabric laminated, or a waterproof sheet-like material, and mainly covers the back surface of the core material 17 to improve the mechanical strength of the dry outer wall material 7 itself. At the same time, it is useful as a function of a non-combustible sheet, a waterproof film, a heat shield sheet, a water absorbing sheet, a soundproof sheet, a packing material and the like.

The dimensions of the furring strip 2 and the dry outer wall material 7 will be described below with reference to FIGS. 2 and 3. In the furring strip 2 , the width of the fixed portion 3 is W ₁ , the width of the mounting surface 5 is W ₂ , and the height of the mounting surface 5 is W ₂ . H, the width of the fixing piece 6 is W ₃ , the length is 1, the pitch of the fixing piece 6 is P ₁ , the pitch of the mounting holes 3a is P ₂ , and the dry outer wall member 7 has The distance to the tip of the insertion edge 11 is l ₁ , the depth of the fixed piece fitting groove 13 is l ₂ , the length of the fitting piece 16 is l ₃ , and the deepest part of the fitting groove 15 to the fixed piece fitting groove 13 The distance to the innermost side is l ₄ , and the width of the concave groove 17a is l
Assuming ₅ , W ₁ = 15mm to 50mm, W ₂ = 20mm to 50mm, W ₃
= 10 mm to 50 mm, h = 5 mm to 50 mm, l = 10 mm to 50 mm
, P ₂ = 45 mm, or 600 mm, and the relationship between the furring strip 2 and the dry outer wall material 7 is l≈l ₂ , l ₁ ≈l ₃ , l ≦ l ₅ , P ₁ ≈l ₄ ,
Relationship.

Next, the construction method will be described.

First, it is assumed that an outer wall as shown in FIGS. 1 (a) and 1 (b) is formed. That is, the existing outer wall 1 is a concrete wall, the furring strip 2 shown in FIG. 2 is used as the furring strip 2 , the steel plate is used as the material, and the thickness t is 2 mm. The dry type outer wall material 7 has the shape shown in FIG.
Therefore, a plurality of furring strips 2 are fixed to the existing outer wall 1 via a fixture 20 at a pitch P = 450 mm, and the fixing pieces 6 are vertically fixed so that they are aligned horizontally. Next, a starter (not shown), a drainer, and the like are horizontally fixed to the lower end (base side) of the furring strip 2 with screw screws. Then, at the same time the fitting piece 16 of the female coupling portion 10 of the first stage of the dry outer walls 7 engage the starter, the male coupling part 9 side fixing piece fitting groove 13 to the furring strips 2 The fixing piece 6 is engaged to fix the first-stage dry outer wall material 7 on the furring strip 2 . Then at the same time engaging the mating piece 16 of the second stage of the dry outer walls 7 in the engaging groove 12 of the first stage of the dry outer walls 7, the fixed piece of the furring strip 2 to the fixed piece fitting groove 13 Insert 6 and the second
Form the wall of the step. Such a process is sequentially performed from the base to the eaves to form the new outer wall 19. In addition,
It is necessary to use coing materials and well-known accessories for parts such as protrusions, corners, eaves, and vertical joints. Further, the furring strip 2 can be made to function as a horizontal furring strip, and the new outer wall 19 can be formed as a vertical stretch.

[Other Examples]

What has been described above is only one embodiment of the outer wall structure according to the present invention, and the furring strip 2 is formed as shown in FIGS. 4 (a) to (g) and FIGS. 5 (a) to (k). Or dry type outer wall material 7
6 (a) to (t), and FIGS. 7 (a) to (k).
Can be formed as shown in FIG. That is, in FIGS. 4A to 4G, (a) is a furring strip 2 formed by removing one fixing portion 3, and (b) is formed by projecting one fixing portion 3 inward. The furring strip 2 , (c) in the figure, the fixing portion 3 is bent inward to form a C-shaped channel, and the mounting hole 3a is attached to the mounting surface 5.
The furring strip 2 formed above, (d) shows the flow hole 4a in the rising portion 4.
Is formed to connect the spaces α formed at both ends of the furring strip 2 to each other, and in particular, a furring strip 2 in which an air cycle path is formed when it is constructed as a horizontal furring strip, (e) FIG. As shown by the one-dot chain line, a seismic isolation material made of a material that is elastic and somewhat rigid, such as polyurethane rubber, arabic rubber, synthetic rubber, etc., is long or is attached with a gap (not shown). 2 , (f) is a furring strip 2 composed of two members, and is a fixed piece member 2a made of substantially Z-shaped metal, rigid resin, or the like.
Is a hat-shaped long plate member made of metal, synthetic resin, etc.
It is fixed to 2b by spot welding, screwing, bolts, etc. (G) The figure shows the furring strip 2 composed of three members,
A fixing piece member 2a and an iron plate 2d having a width wider than that of the square pipe 2c are welded, screwed, or bolted to the square pipe 2c. In addition, in FIGS. 5 (a) to (k),
(A) is a furring strip 2 in which a tongue piece 6b is formed at the tip of the fixed piece 6,
(B) drawing the furring strip 2, protrusions 6c, or although not shown forming a concave on the fixing piece 6 (c), (d) drawing and the fixing piece 6 is formed in a semicircular shape, a triangular shape or the like barrel edge 2, (e), (f ) drawing furring strip 2 formed by inclined fixing pieces 6 vertically or inwardly, (g), (h) drawing semicircular tip of the fixed piece 6, Alternatively, the furring strip 2 formed by cutting out the corners, (i) shows W ₂
= (W ₃ ), the furring strip 2 formed as = W ₃ , (j) shows the furring strip 2 formed by bending upward except for one end of the upper portion, (k) shows that the tip of the fixing piece 6 is bent outward, extended to the mounting surface 5, it is a fixed piece 6 a furring strip 2 with enhanced strength by the double. Further, FIGS. 6 (a) to 6 (t) are modifications of the metal siding material 7a, FIGS. 6 (a) to 6 (j) are for horizontal lining, and FIGS. 6 (k) to (t) are for vertical lining. It is particularly shown. Further, FIGS. 7 (a) to 7 (k) show an example of the ceramic siding material 7b, which is ALC type, ceramic type, concrete type, tile type or the like. Of course, the outer wall structure is formed by combining FIG. 4 (a) to (g), FIG. 5 (a) to (k), FIG. 6 (a) to (t), and FIG. 7 (a) to (k), respectively. Can also be formed.

〔The invention's effect〕

As described above, according to the outer wall structure of the present invention, since the dry outer wall member having the fixing function is used for fixing to the furring strip, it is possible to easily and without using a fixture such as a nail. The outer wall can be formed with high efficiency. Further, particularly when forming the refurbished outer wall, a space can be formed between the existing outer wall and the new outer wall, and heat insulation and dew condensation prevention can be achieved by ventilation.
Since a new outer wall can be formed without removing the existing outer wall, the renovation period can be shortened without stopping living, and there is also cost reduction efficiency. Since a new outer wall is formed on the existing outer wall, a waterproof sheet is not required at the time of construction and the waterproof function can be performed without concern. There are characteristics and effects.

[Brief description of drawings]

1 (a) and 1 (b) show an example of an outer wall structure according to the present invention, a partially cutaway perspective view and a sectional view taken along the line EE, FIGS. 2 and 3 show the outer wall structure according to the present invention. A partially cutaway perspective view showing an example of a furring strip and a dry outer wall material that are members used for
FIGS. 4 (a) to (g) and FIGS. 5 (a) to (k) are partially cutaway perspective views showing other embodiments of the furring strip, FIGS. 6 (a) to (t) and FIG. 7 (a) to (k) are explanatory views showing other examples of the dry type outer wall material. 1 …… Existing outer wall, 2 …… Furnace edge, 6 …… Fixing piece, 7 …… Dry outer wall material, 13 …… Fixing piece fitting groove, 19 …… New outer wall.

Claims (1)

[Claims] 1. An outer wall structure in which a furring strip is fixed on a body or an existing outer wall at regular intervals, and a dry outer wall material having a male / female type connecting structure is mounted on the furring strip. A fixing piece that is formed in a hat shape or a ladle shape and that protrudes outward and is bent in a substantially L shape in the same direction is formed on the top surface of the furring strip, that is, the mounting surface. A horizontally elongated metal plate or synthetic resin plate is used as a surface material, a male type connection portion is formed at one end of the decorative surface of the outer surface material, and a female type connection portion is formed at the other end, and a synthetic resin foam or the like is formed on the back surface of the surface material. Is formed into a sandwich structure by covering the back surface of the core material with a sheet-shaped back surface material, and the male connecting portion is bent inward at one end edge of the decorative surface in a U shape. And the fixed piece fitting groove formed on the decorative surface side rear surface of the engaging groove, and the female connecting portion is the other end. Formed from a fitting piece that bends outward and protrudes, fix the above-mentioned furring strip on the frame or on the existing outer wall, and insert the fixing piece fitting groove of the dry type outer wall material to fix the outer furring strip An outer wall structure characterized in that the outer dry type outer walls are integrally formed as an engagement groove and a fitting piece.