JPS603883Y2 - mortar base plate - Google Patents

Description

[Detailed description of the invention] This invention is very easy to form as a base for mortar walls, and has rigidity, heat insulation, moisture control, sound insulation, crack resistance and peeling resistance of mortar walls, and is highly efficient. The present invention relates to a mortar base plate having workability.

Conventionally, when forming a cement mortar wall, the base structure was (1) lath board - waterproof paper - lath material, and (0) cement mortar material was integrally formed on plywood.

For example, Japanese Patent No. 941718 and JP-A-54-6801 in which a heat insulating material and a lath material are integrally formed are 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 the thermal insulation properties of 0 were greatly improved, the biggest weakness was in the fixed structure of the lath material and the heat insulating 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 retaining pieces are evenly distributed to integrate the base and cement mortar, and the physical bond is caused by a chemical reaction between the zinc component of the base and the cement mortar to prevent shrinkage.
Furthermore, the present invention provides a mortar base plate that suppresses apparent cracks through the mutual effect of moisture control properties, prevents peeling, and has excellent heat insulation, sound absorption, sound insulation, workability, and waterproof properties. .

The mortar 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.

FIGS. 1a and 1b are a perspective view and a partially enlarged vertical sectional view showing an example of the base plate.

In the figure, 1 is a bottom part 2 formed by molding a thin metal plate with a surface material.
A part of the bottom part 2 itself is cut, and a large number of locking pieces 3 protruding outward from the surface 2a and both side edges of the bottom part 2 are formed on the side wall 4 bent inward and the lower end of the side wall 4. It is composed of a male type connecting part 5 and a female type connecting part 7 having a inserted edge 6.

To explain further, the surface material 1 has a lath bending function and a bottom part 2.
It has the function of storing a heat insulating layer in the recess formed by the side wall 4 and the side wall 4.

The female connecting portion bends the lower end of the side wall 4 inward, projects outward again, and integrates the substantially U-shaped insertion groove 8 and the extension portion 10 extending the lower edge 9 outward. It was formed in

In particular, the locking piece 3 is made by cutting and bending a part of the substrate 1 itself to protrude upward from the surface 2a, and its cross-sectional shape is formed, for example, as shown in FIGS. 2a to 2f.

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 3 protruding perpendicularly to the panel surface, and only the tip 3a is bent to form a substantially hook shape. This is what I did.

Also, figure 0 is the same as figure b, but the tip 3a is connected to the panel surface 2.
Figure d shows the locking piece 3 bent horizontally, Figure e shows the tip 3a of the locking piece 3 shown in Figure d.
Figure f shows the locking piece 3 bent at an angle θ1, and the locking piece 3 is tapered.

The height H of this locking piece 3 is arbitrarily set depending on the thickness of the hydraulic inorganic wall. For example, if the wall is 20 m thick, the height H is 5 m.
m or more to about 15rrrIIt, 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-j, for example, and may be formed into a crown-like shape consisting of one piece, three pieces, or multiple pieces depending on the purpose.

The locking piece 3 can be formed by a general press, a notched press, or a burring process, which is applied beyond its limit to generate cracks at the periphery of the burring part.

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

To explain further, in Fig. 3, figure a shows a case where three rectangular locking pieces 3 are formed as shown in a', and figures b-d show a case where triangular locking pieces 3 are formed on the periphery of a circle as shown in b. Fig. e shows a case where six triangular locking pieces 3 are formed on the periphery of a hexagon.

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 3 is formed by dividing the periphery of the ellipse into a large number of pieces, and figure g shows the case where the locking piece 3 is formed high in the rectangular shape, and h and i are This is a case where the periphery of a square is formed into four locking pieces 3, and Figure J is a case where the periphery of a triangle is formed into three pieces.

Furthermore, the distribution of this type of locking piece 3 is arranged as shown in FIGS. 4a and 4d.

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

Of course, the distribution is not limited to this, and can be distributed in a rhombus, polygon, circle, etc.

It is also possible to arrange two or three locking pieces 3 in succession (as shown in FIG. 4d).

Note that a regular distribution is preferable for manufacturing the base plate.

The most suitable material for the substrate 1 provided with such a locking piece 3 is a thin metal plate or a synthetic resin plate.

Specific examples include surface-treated steel plates (galvanized iron plates, colored iron plates...) stainless steel plates, ribbed steel plates, etc., with a thickness of approximately 3mm.
It is desirable that it is 2 rra or less.

Furthermore, examples of the synthetic resin board include vinyl chloride, vinyl acetate, acrylic resin 1, polycarbonate, and the like.

Reference numeral 11 is a heat insulating layer that is inserted into the recessed portion and has the function of reinforcing the rigidity of the surface material 1, providing moisture control and sound absorption properties, and suppressing cracks in the mortar wall by integrating with the mortar wall. .

A specific example thereof is a sheathing insulation board, which is preferably held between both edges of the side wall 4 or formed integrally with the surface material 1 via an adhesive.

In particular, this type of heat insulating layer prevents rapid drying when the cement mortar material is sprayed or applied, and slowly shrinks and dries to suppress cracks due to the mutual effect with the locking pieces.

Moreover, since the surface material 1 itself has high rigidity, it functions more strongly to prevent cracks.

An adhesive 12 is applied to at least a portion of the lower edge 6a of the insertion edge, the back surface of the heat insulating layer 11, the lower edge 9, and the back surface of the extension portion 10, and is used for pasting the waterproof sheet 13.

As the adhesive 12, (1) thermoplastic, (2) thermosetting, (2) rubber adhesive, (2) other adhesives, or (2) hydraulic adhesive is used.

The above ■ is vinyl resin, acrylic resin, asphalt; Rubber, butyl rubber, (2) casein, starch, gum arabic, sodium silicate, (2) gypsum, cement, polyurethane elastomer, etc.

Reference numeral 13 denotes 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 sheet laminated with one or more of these materials, or a sheet-like material subjected to waterproof treatment.

This waterproof sheet 13 is stretched and fixed between the lower f&6a of the insertion edge 6 and the lower edge 9 of the insertion groove 8.

This is because in a composite structure, the strength of the surface material 1 and the waterproof sheet 13 has a greater influence on 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 mortar base plate according to the present invention, and the projecting strip 10a may be provided in the longitudinal direction in the middle of the extension portion 10, or the tongue pieces 6b, 10b may be formed as shown in the figure. can do.

Further, in FIG. 1a, the edge of the waterproof sheet can be made to protrude outward from the extension, as shown by the dashed line.

Furthermore, the heat insulating layer can be formed so as to be sandwiched between both side wall ends.

Next, in order to examine the characteristics of this base plate, a mortar wall as shown in FIG. 5 was formed.

In addition, 14 is a rim, 15 is a nail, and 16 is a cement mortar wall, tt = 25 mm, t-t = 12 m
m, joint width W = 5 mm.

The heat insulating layer will be a 12m sheathing isolation board, and the waterproof sheet will be a 15kg/i asphalt felt.

■Sound insulation is approximately 30dB at 1000Hz, ■Bending strength is 5
0kg/CI! , ■Plane tensile adhesive strength is 13kg/cIt
, ■ Shrinkage rate is 2 x 10-', ■ Passion rate is 3.5k.
Ca11 H・h・℃,■ The cracking and peeling of the cement mortar wall is largely related to the moisture control effect of the heat insulating layer, and some hair cracks were seen due to the physical bonding of the locking pieces 3, but in practical use No problematic cracks were observed at all.

As described above, the base plate according to the present invention has excellent sound absorption and insulation properties and adhesion of mortar wall materials, and furthermore, the shrinkage of mortar wall materials is slowed by the humidity control effect of the heat insulating layer. It is characterized by promoting the suppression of cracks and preventing peeling due to its integration with the locking piece.

[Brief explanation of the drawing]

FIGS. 1a and 1b are a perspective view and a partially enlarged vertical sectional view showing an embodiment of a mortar base plate according to the present invention, and FIGS. 2a-f
3a to 3j are a vertical 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, and FIG. 4 is a schematic diagram showing an example of the distribution of the locking piece. The perspective view and FIG. 5 are longitudinal sectional views when a mortar wall is formed using the mortar base plate according to the present invention. DESCRIPTION OF SYMBOLS 1... Surface material, 3... Locking piece, 5... Bent male connection part, 10... Extension part, 11...
...insulation layer.

Claims (1)

[Scope of utility model registration request] A thin metal plate is formed to have a concave cross section, and a male and female connecting structure with a fitting structure is provided on the left and right side wall edges thereof, and a plurality of locking pieces projecting outward are provided on the bottom of the concave shape, and the thin metal plate A surface material formed by cutting and bending a part of itself, a heat insulating layer with moisture control properties like a sheathing board filled in the recessed part, and the lower edge of the male and female connecting parts and the back surface of the heat insulating layer. A mortar base plate characterized in that a waterproof sheet and a waterproof sheet are fixed together with an adhesive so as to cover the base plate.