JPS5935708Y2 - mortar base plate - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a mortar base plate in which a locking piece that is integrated with a mortar wall and a cationic latex layer are formed on the panel surface of an easily connected and rigid substrate.

Conventionally, for example, when forming a cement mortar wall, the following three base materials are known.

In other words, (■) is lath board - waterproof paper - lath material, (2) is a case where only the base coat layer of cement mortar is adhered on plywood, for example, Patent No. 941718, and (2) is a combination of heat insulating material and lath material. The so-called Japanese Patent Application Publication No. 54-68019
There are numbers etc.

However, all of the bases ① to 0 described above had various drawbacks.

In other words, there is a lot of complicated work involved in forming the base for ■.
It is inefficient and requires skill in construction.

Moreover, this base lacked heat insulation properties and had the disadvantage that cracks and flaking occurred in the mortar walls.

■For the foundation, the efficiency of mortar wall formation has been greatly improved,
Although the construction period was shortened, it had the drawbacks of lacking insulation and being heavy.

Furthermore, although the 0 base has very good insulation properties, it lacks the adhesion between the bases and the mortar wall and the lath material, and the strength of the integration of the lath material and the insulation material, resulting in cracks in the mortar wall. There was a disadvantage that it formed in large numbers and peeled off.

In order to eliminate such drawbacks, the present invention has been developed by cutting and bending a part of the board itself to provide a locking piece for mortar attachment on one side (panel surface) of a board with a normal male-male connection structure. A cationic latex layer is applied to the panel surface with the locking pieces to integrate the mortar wall material and base plate, preventing the mortar wall from cracking and peeling, and greatly improving insulation and workability, reducing construction time. We propose a mortar base plate with a shortened time.

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.

FIG. 1 is a perspective view showing the base plate, and in the figure, 1
is a hard substrate with high rigidity and elasticity, such as metal plates (zinc iron plates, colored iron plates, stainless steel plates), synthetic resin plates (vinyl chloride resin, vinyl acetate resin, acrylic resin, polycarbonate resin, etc.), and lath materials. It has a concave cross-section and a rectangular or rectangular bottom part 2. Form into a rectangle.

Further, on the surface 2a of the bottom part 2, a plurality of locking pieces 3 are formed at appropriate intervals by cutting and bending a part of the bottom part itself.

Reference numeral 4 denotes a side wall which is formed by bending both ends of the bottom portion 2 vertically or obliquely, and reference numeral 5 denotes a male connecting portion having an insertion edge 6 projecting outward from the edge of one side wall.

Reference numeral 7 denotes a female connecting portion, which bends the edge of the other side wall inwardly and protrudes outward again to form a substantially U-shaped insertion groove 8, and an extension portion 10 extending its lower edge 9 outward. It is an integrated form of

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-f.

In other words, figure a shows a curved line that widens at the end (the whole slopes from the base to the base end), and figure b shows the locking piece 3 protruding perpendicularly to the panel surface, with only the tip 3a bent to form a roughly hook shape. It was formed.

Also, figure 0 is the same as figure b, but with the tip 3a bent horizontally to the panel surface 2, figure d shows the locking piece 3 tilted linearly, and figure e shows the locking shown in figure d. The locking piece 3 shown in FIG.

The height H of this locking piece 3 is arbitrarily set depending on the thickness of the mortar wall, but for example, if the wall is 20 mm thick, the height H is 5 m.
m or more to about 15 mm, and the diameter of the hole is arbitrary.

Further, the distribution of the locking pieces 3 is staggered, grid-like, polygonal, circular, or the like.

Further, the number of locking pieces 3 is limited to one, but it is also possible to form two or three pieces in succession.

Reference numeral 11 is a heat insulating layer which is filled in the recessed part and has moisture control properties, sound absorption properties, sound insulation properties, and heat insulation properties depending on the rigidity of the substrate 1 and the material, such as gypsum board, rock wool, asbestos, and sheathing insulator. ration board, polyurethane foam, polyisocyanurate foam, phenol foam, polystyrene foam, etc.

12 is a waterproof sheet, which is made of a relatively strong sheet-like material such as asphalt felt, kraft paper, synthetic resin sheet,
These are asbestos paper, metal foil, laminates of one or more of these, or sheet-like materials that have been subjected to waterproof treatment.

Preferably, it is stretched and fixed between the lower edge 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 substrate 1 and the waterproof sheet 12 is more closely related to the section modulus than the reinforcement of the core material, so-called heat insulating layer.

Reference numeral 13 denotes a cationic latex layer, which is applied to the bottom surface 2a, the surface where the so-called locking piece 3 is present, as shown in an enlarged view in FIG.

This improves the adhesion between the mortar wall material, the substrate, and the locking piece 3, resulting in a strongly integrated mortar wall, and buffers the shrinkage of the mortar wall material with the flexibility of the cationic latex layer. The purpose is to prevent cracks and provide vibration resistance (vibration damping properties).

The thickness of this latex layer 13 is approximately 1 to 5 mm.

What has been described above is only one embodiment of the base plate according to the present invention, and the protrusion 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. , one or more of perlite particles, zeolite, borax, styrene beads, and fibers are added to the synthetic resin foam layer in an amount of about 10 to 10 parts per 100 parts by weight of raw materials for fire resistance, compression resistance, sound absorption, etc.
It is also possible to add 0 parts by weight.

Next, a construction example will be explained.

First, a 0.3 mm colored iron plate was filled with polyurethane foam as a base plate, and asphalt felt was placed on the back side.
18kg/cn+”).

Note that the above foam was made by foaming raw materials using an in-situ foaming method to integrate the above constituent materials.

Further, H = 7 mm, D = 14 mm, and the cationic latex layer was 3 mm.

Therefore, as shown in FIG.
5, the insertion edge of the base plate adjacent to this is inserted, and the extended portion is fastened with nails.

Next, a cationic latex material 16 of the same quality as the cationic latex layer is filled into the joints of this base plate, and then a mortar wall material 17 of 15 mm is attached.

This mortar wall material is cured for 20 days to form a mortar wall.

The following shows the results of measuring the characteristics of this mortar wall material and base plate.

■ Adhesive strength (plane tensile adhesive force kg/cm) Conventional lath net construction method 2.6 - Construction method using base plate according to the invention 13.6 ■ Shrinkage rate Free shrinkage mortar wall 12 × 10-4 invention Mortar wall 3X10-' using the base plate according to the above ■ Vibration test (A 500X 250 mm test piece was mounted upside down on a vibrating sieve machine and a vibration test was conducted for 5 hours.

) Mortar wall using the conventional lath net method Mortar wall using the base plate according to the present invention cracked and peeled off No abnormalities As mentioned above, the base plate according to the present invention has excellent water resistance and waterproof properties. It also has the feature of improving the integration of the base plate and mortar wall material.

Furthermore, since a flexible latex layer is interposed between the base plate and the mortar wall, vibrations from the outside are not directly transmitted to the mortar wall, thereby suppressing cracking and peeling of the mortar wall.

Furthermore, since the locking piece and the mortar wall material are integrated physically and chemically, shrinkage of the mortar wall is greatly suppressed.

In addition, it is easy to connect, making it suitable for construction methods, and it also has excellent sound insulation properties.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing one embodiment of a mortar base plate according to the present invention, Figs. The figure is a longitudinal sectional view showing how the locking piece is covered with the cationic latex layer, and FIG. 4 is a longitudinal sectional view showing an example of construction. 1... Hard substrate, 3... Locking piece, 13
...Cationic latex layer.

Claims (1)

[Scope of utility model registration request] A hard substrate is formed with a concave cross section, and a male,
a female connecting portion is provided, a plurality of locking pieces protrude outward from the concave bottom portion, and a portion of the substrate itself is cut;
A mortar base plate is provided by bending, the concave portion is filled with a heat insulating layer, and at least the back surface of the heat insulating layer and the lower edge of the male connector are covered with a waterproof sheet. A mortar base plate characterized by being coated with a latex layer.