JPS603882Y2 - insulation base plate - Google Patents

Description

[Detailed description of the invention] The invention has a locking piece for fixing a hydraulic inorganic layer to the panel surface of a rigid substrate that is easy to connect, and also has heat insulation and waterproof properties and prevents cracks in the inorganic layer. This invention relates to a heat insulating base plate that prevents peeling.

Conventionally, for example, when forming a cement mortar wall, the underlying structure was: ■ lath board - waterproof paper - lath material, ■ cement mortar material integrally formed on plywood, for example, Patent No. 941718, ■ heat insulation. Japanese Patent Application Laid-Open No. 54-6801, etc., in which a lath material and a lath material are integrally formed, is known.

However, method (2) involves complicated processes, resulting in poor working efficiency and requiring skill, and also has problems with heat insulation, cracking, and peeling.

In addition, although workability was greatly improved in case (2), it lacked heat insulation and weight reduction, and had weaknesses in crack prevention, joints, etc.

Furthermore, although insulation properties were greatly improved in ◎, the biggest weakness was in the fixed structure of the lath material and the insulation material, and no improvements were made to the joints between the boards.

In order to eliminate such drawbacks, the present invention protrudes a part of the panel surface itself of a panel (substrate) with a normal male-female connection structure to serve as a locking piece, and uses a highly rigid lath material. The locking pieces are evenly distributed to integrate the base and hydraulic base material, and the physical bond prevents shrinkage, preventing apparent cracks and peeling, and is lightweight with excellent workability. To provide a heat insulating base plate with high heat insulation properties.

The heat insulating base plate (hereinafter simply referred to as base plate) according to the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a perspective view showing an example of a base plate according to the present invention, and 1 is a base plate with polyurethane foam (
A thin synthetic resin foam layer 2 such as open-cell soft foam) and vinyl chloride foam is integrally attached to provide a highly rigid reinforcing bar (lath material) function, easy connection between adjacent boards, workability, and heat insulation. It has a function to strengthen mechanical strength through accommodating function and compounding.

The shape is such that the cross section is concave, and the bottom part 3
form into a square or rectangle.

Furthermore, a plurality of locking pieces 4 are formed on the surface of the bottom part 3 at appropriate intervals by cutting and bending a part of the bottom part itself.

Reference numeral 5 denotes a side wall, which is formed by bending both ends of the bottom portion 3 vertically or obliquely, and reference numeral 6 denotes a male connecting portion, which has an insertion edge 7 projecting outward from the edge of one side wall.

Reference numeral 8 denotes a female connecting portion, which bends the edge of the other side wall inwardly and projects outward again to form a substantially U-shaped insertion groove 9 and an extension portion 11 extending its lower edge 10 outward. It is formed in one piece.

In particular, the thin synthetic resin foam layer 2 has insulation properties, cushioning properties at the joints, and leakage of the insulation layer raw material from the gaps 3b caused by the formation of the locking pieces 4, which will be described later, from the locking pieces 4. The aim is to suppress this.

The foam layer is approximately 2 to 5 meters thick and is formed, for example, from flexible polyurethane foam, polyethylene foam, vinyl chloride foam, which does not require adhesives and can be produced by foaming in situ.

Of course, other bulky members can also be used using adhesives.

Further, the locking piece 4 is made by cutting and bending a part of the board 1 itself to protrude upward from the surface 3a of the bottom part 3,
Its cross-sectional shape is formed, for example, as shown in FIG. 3g''f.

In other words, figure a shows a curved shape that widens at the end (the whole slope is θ from the base to the tip), and figure b shows the locking piece 4 protruding perpendicularly to the panel surface, and only the tip 4a is bent to form a substantially hook shape. It was formed in

Also, figure 0 is the same as figure b, but with the tip 4a bent horizontally to the panel surface 1, figure d shows the locking piece 4 tilted linearly, and figure e shows the locking piece 4 shown in figure d. tip 4a of
Figure f shows the locking piece 4 bent at an angle θ1, and the locking piece 4 is tapered.

The height H of this locking piece 4 is arbitrarily set depending on the thickness of the hydraulic inorganic wall, but for example, when the wall is 20rrvn thick, it is about 5 or more to 15TrIIIL, and the diameter of the hole is arbitrary.

Furthermore, the shape of the locking piece in plan view is various, as shown in FIGS. 3a to 3j, for example, and may be formed into a crown-like shape consisting of one piece, three pieces, or multiple pieces depending on the purpose.

This locking piece 4 can be formed by using a general press, a notch press, or a burring process, and then applying the force beyond its limit to cause cracks at the local ends of the burring part.

Of course, in order to make the locking piece into a complicated shape, the locking piece may be bent or punched before it is projected.

To explain further, in FIG. 3, figure a shows the case where the rectangular locking piece 4 is formed into three pieces like a', and b-d
The figure shows a case in which four triangular locking pieces 4 or multiple pieces (not shown) are formed on the periphery of a circle as shown in b', and figure e shows a case in which six triangular locking pieces 4 are formed on the periphery of a hexagon. This is a case of monolithic formation.

Of course, when burring is performed using a polygonal punch, the locking piece will be formed accordingly.

Figure 3 f shows the case where the locking piece 4 is formed by dividing the periphery of the ellipse into many pieces, figure g shows the case where the locking piece 4 is formed high in the rectangular shape, and h and i are squares. Figure J shows the case where the peripheral edge of the triangle is formed into four locking pieces 4, and the peripheral edge of the triangle is formed into three pieces.

Furthermore, the distribution of this type of locking piece 4 is arranged as shown in FIG. 4g''-d.

That is, diagram a is a random distribution, diagrams b and 0 are regular distributions, diagram b is a staggered distribution, and diagram 0 is a base pattern distribution.

Of course, the shape is not limited to this, but it can be distributed in a diamond shape, a polygonal shape, a circular shape, etc., and there are also two locking pieces 4 (as shown in FIG. 4d).
Alternatively, it is also possible to arrange three pieces in succession or with narrow intervals.

Note that regular distribution is preferable for forming the base plate.

Reference numeral 12 is a heat insulating layer made of a foamable synthetic resin raw material such as polyurethane foam, polyisocyanurate foam, phenol foam, styrene foam, etc., which can integrate constituent materials by utilizing self-adhesive properties during foaming.

In addition, this type of foam has excellent water resistance, alkali resistance, heat insulation, and elasticity (cushioning properties), and because it has a closed cell foam structure (closed cell ratio of approximately 30% or more), it does not absorb water and is free from chemical reactions. Because it is stable, it does not absorb moisture and does not corrode.

The heat insulating layer 12 may be formed in various shapes, for example as shown in FIGS. 5a to 5h.

Note that illustration of the locking piece 4 is omitted.

That is, Figure a shows the case where the heat insulating layer 12 is integrally provided on the lower edge 10 and the concave portion of the female type connecting part 8, and Figures b-d show the case where the male,
This is the case where a part of the heat insulating layer protrudes downward from the female type connecting part, and Figure e shows the case where a part of the heat insulating layer is also formed on the lower surface of the insertion edge of the male type connecting part.

In addition, in Fig. f, the bottom part 3 is formed in an uneven wave shape, and a locking piece 4 is provided at least on the protruding part 3C, and a heat insulating layer 12 is applied to the entire surface of the concave bottom part 3 and downward from the male and female connecting parts. This is an outstanding case.

Furthermore, in Fig. 5g, both edges 3d of the surface 3a of the bottom part 3 are protruded, and a part of the heat insulating layer 12 is also formed in this part to strengthen the mechanical strength of the joint part when forming a wall structure. It is.

13 is a waterproof sheet, which is a relatively strong sheet-like material such as asphalt felt, kraft paper, synthetic resin sheet, asbestos paper, metal foil, a laminate of one or more of these, or a sheet-like material that has been subjected to waterproof treatment. .

Preferably, the lower edge 7a of the insertion edge 6 and the lower edge 10 of the insertion groove 9
It is best to fasten it in between.

This is because in a composite structure, the strength of the substrate 1 and the waterproof sheet 13 is more closely related to the section modulus than the strength of the core material, so-called heat insulating layer.

What has been described above is only one embodiment of the heat insulating base plate according to the present invention, and the protrusion 11a may be provided in the longitudinal direction in the middle of the extension part 11, or the tongue pieces 7b, llb may be formed as shown in the figure. ,
Perlite grains, zeolite, borax,
Styrene beads, one or more types of fibers are fire resistant, compression resistant,
Approximately 10 to 10 parts per 10 parts of raw materials for sound absorption, etc.
It is also possible to add saliva.

In addition, in FIG. 1, as shown by the dashed line, the entire lower edge of the male and female connectors (and) or the outwardly protruding portion 13a.
A waterproof sheet can also be provided.

Next, we investigated the performance of this base plate and found the following.

As the substrate 1, an embossed color iron plate with a thickness of 0.37rrI11 was formed into the shape shown in Fig. 5C, and this was filled with polyurethane foam 13 (density 30 kp/me) by an in-situ foaming method, and 5 kg of asphalt felt was formed. /rIl
It was made into a base plate that was integrally attached.

Also, in Figure 5C, '1 = 298771m, 1
2=302 diagonal, 13=31mm, ], = 18mm,
ls=17mm, t□=13mm, t2=12mm
The joint width is 5 mm, and the height of the locking piece 4 is H = 5TIr.
The diameter of In1 is 10 mm, and the distribution is about 2 as shown in Figure 4 a.
Assume that they are arranged at 0m intervals.

Of course, the joint width can also be set to zero.

Then, about 20rrvn of cement mortar material 14 was applied, cured for about 20 days, and dried.
Suppose that it is obtained by adhering to the furring 15 through the.

■ Shear strength test (shear strain 1/60 rad) Mortar wall 535k using the base plate according to the present invention.

Lath wood wall 101 to 9■
Adhesive strength (plane tensile adhesive strength kp/c4) Mortar wall 13 or more conventional lath net construction method using base plate according to the present invention
2.6 to 5.0 ■ Free shrinkage mortar wall 12X10-' Mortar wall 2 constructed using the base plate according to the present invention, I
10-4 ■ Heat transmission coefficient Mortar wall according to the present invention 0.853 kcal / 77
1”rrl・h・℃ Conventional mortar wall 5.3kcal/m”・
h・℃■ Watertightness test (JIS-A-6711) was conducted with the exception of cement mortar.

No water leakage was observed.

■ Leakage of the heat insulating layer to the surface 3a Leakage of the heat insulating material to the surface 3a from the gap 3b caused by the formation of the locking piece 4 does not actually become a problem; It was just a convex shape.

As described above, the base plate according to the present invention has excellent heat insulation properties, waterproof properties, workability, and mechanical strength, and when a wall is formed by attaching a hydraulic inorganic wall material, there is no cracking. It has the characteristics of very little flaking and a strong wall.

Another feature is that there is no need to provide a special layer for suppressing leakage of mortar or the like from the heat insulating layer to the surface to which it is attached.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the base plate according to the present invention;
FIGS. 2 a-f and 3 a-j are a longitudinal sectional view, a perspective view, and a plan view showing an example of a locking piece that is one of the main parts of the present invention,
FIG. 4 is a schematic perspective view showing an example of the distribution of the locking pieces, FIGS. 5 a to 5 g are explanatory diagrams showing examples of forming other heat insulating base plates, especially heat insulating layers, and FIG. 6 is a heat insulating according to the present invention. It is a longitudinal cross-sectional view when a cement mortar wall is formed using a base plate. 1... Substrate, 2... Thin synthetic resin foam layer, 12... Heat insulation layer, 13... Waterproof sheet.

Claims (1)

[Scope of utility model registration request] A rectangular or rectangular substrate with a thin synthetic resin foam layer integrally provided on the back side of a thin metal plate is formed with a concave cross section, and a male and female connecting structure of a fitting structure is provided on the left and right side wall edges,
A plurality of locking pieces projecting outward are formed in the concave bottom portion by partially cutting and bending the thin metal plate itself, and the concave portion is integrally filled with a heat insulating layer made of synthetic resin foam. . A heat insulating base plate, characterized in that a waterproof sheet is integrally provided so as to entirely cover the ends of the male and female connecting portions and the back surface of the heat insulating layer.