JPS603887Y2 - mortar base plate - Google Patents

Description

[Detailed description of the invention] This invention involves cutting and bending a part of the board itself to attach a retaining piece for attaching mortar wall material to a hard board having rigidity and elasticity.
The present invention also relates to a mortar base plate having a structure in which locking pieces provided at least on both edges thereof can be fitted to suppress cracks in the mortar wall at the connecting portion of the base plate.

Generally, in mortar walls, cracks occur due to shrinkage (drying) of the wall material after construction, which seriously impairs the appearance.

Most of these cracks were caused by deformation or vibration of the underlying structure, or by shrinkage of the mortar wall material itself during drying.

Particularly when a mortar base plate is used, the connecting portions, so-called joint portions, have a different base structure from the rest, and are therefore the weakest point where cracks can occur in the mortar wall.

In addition, in mortar walls, although the base is rigid and functions as a structural material, shrinkage gradually progresses over a long period of time as the mortar wall material hardens, and reinforcing materials or isolation materials to suppress the occurrence of cracks are used. A base structure in which members exist was desired.

The present invention is in response to these demands, and includes a reinforcing material, a rigid base material, a heat insulating material, and an elastic locking piece that suppresses the shrinkage of the mortar wall, and also has a locking piece that fits into the joint between the base plates. We propose a mortar base plate that forms a structure and improves the suppression of cracks in mortar walls at joints.

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 described below.

In the figure, reference numeral 1 denotes a hard substrate (hereinafter simply referred to as a substrate) which serves as a highly rigid reinforcing bar (lath material) such as a thin metal plate or synthetic resin plate and reinforces the joint between base plates.

To explain further, the board 1 is a long plate and is formed to have a larger area than the surface of a heat insulating board to be described later, and the surface 1a of the board 1 has a female locking piece 2 and a male mold. A large number of mold locking pieces 3 are formed by cutting and bending a part of the substrate 1 itself parallel to the side edges.

In particular, the female locking piece 2 is formed parallel to the side edge of the substrate 1 in a region of the substrate 1 that protrudes from the cross-sectional plate, that is, from the so-called overlapping piece 1b to the vicinity of the other end.

Further, the male locking pieces 3 are arranged in a row parallel to the side edge at the other end of the substrate 1 facing the overlapping piece 1b, and the female locking pieces 3
It is formed in the shape of a mountain at the position corresponding to .

Furthermore, the female mold locking pieces 2 have a cross section as shown in FIGS. 2a to 2e, and have a shape that opens outward from the surface 1a of the substrate 1, and are formed at the same pitch in the pattern of the substrate or in a zigzag pattern. The height H is set according to the thickness of the mortar wall, and the diameter of the through hole 2a created when the substrate 1 is cut is the same as the outer diameter ΔD of the male mold locking piece 3. The dimensions are as follows.

Here, the above-mentioned locking piece 2 for female mold and locking piece 3 for male mold will be explained in detail. In FIG. piece,
Figure b shows a female mold locking piece 2 formed perpendicularly to the plane of the substrate 1, with only its tip 2b bent to form an almost hook shape, and Figure C shows a female mold locking piece in section b. The female mold locking piece has the same shape as the female mold locking piece shown in , but the cross section of the female mold locking piece is bent with the tip 2b parallel to the substrate 1. Figure d shows the female mold locking piece in a straight line with an inclined angle (θ □) Female type locking piece with a cross section bent to
Figure e shows a cross-section of the female locking piece 2 shown in figure d, with the tip 2b bent at an angle θ2.

Moreover, FIG. 3 is a longitudinal cross-sectional view showing an example of the male-type locking piece 3, and the male-type locking piece 3 is formed in a tapered cross section.

Note that the diameter is set to ΔD≧D1 and the height is set to ΔH≧H to facilitate connection of the base plate.

Also, locking pieces 2 and 3 for female and male molds on the edge of the board 1
is formed at a position where the pitch is ΔP=ΔP□.

Of course, the width 1 of the heat insulating plate, the width 11 of the substrate 1, and the width 12 of the overlapping part 1b described below are determined relative to each other, and at least a row of locking pieces 2 for female molds are present in the overlapping part 1b. It is something.

Reference numeral 4 denotes a heat insulating board, which is made of one of hard, semi-hard, and soft materials, and is integrated with the back surface of the substrate 1 by foaming in place or by forming a molded body through an adhesive.

Specifically, these include gypsum board, rock wool, asbestos, sheathing insulation board, polyurethane foam, phenol foam, polyisocyanurate foam, polystyrene foam, and the like.

The heat insulating plate 4 has a thickness h of 10 to 50 TfrIn, a length L that is the same as or shorter than the substrate 1, and a width 1 that is 1° shorter than the substrate 1.

What has been described above is only one embodiment of the present invention, and the first embodiment
As shown by the two-dot chain line in the figure, a waterproof sheet 5, such as asphalt felt, a synthetic resin sheet, or aluminum foil, is provided, or one or more of pearlite grains, shirasu balloons, boron, silicates, etc. are added to the heat insulating board 4. You can also.

Next, a construction example will be briefly explained.

FIG. 4 is an enlarged vertical cross-sectional view of a part of a mortar wall formed using the base plate, in which 6 is a mortar wall, 7 is a rim, 8 is a mounting bracket, and 9 is an anchor.

First, base plate X1. A colored iron plate of 0.3wn was used as the base material for X2, and the locking piece 2 for the female mold had the shape shown in FIG. 2a, and the locking piece 3 for the male mold had the shape shown in FIG. 3.

In addition, the dimensions of each part are l = 300mm, l□ = 3
10mm, l□=20mm, 13=10mm, P=2
0mm, ΔP=10mm, h=10mm, H=
ΔH=5 and D=ΔD=1 orran.

The heat insulating board 4 was made of polyurethane foam with a bulk density of 40 to 9/m, and the waterproof sheet 5 was made of asphalt felt of 18 kg/-, and these constituent materials were integrally formed using an on-site foaming manufacturing method using polyurethane foam raw materials. .

Therefore, base plate X1. X2 is laid and fitted as shown in Fig. 4, and the mounting bracket 8 is arranged on the part where the female mold locking piece and the male mold locking piece 2 and 3 are fitted, and then Drive nails 9 as shown in the figure to connect the base boards.

Next, a mortar wall material was attached under this condition and cured to form a mortar wall 6.

This mortar wall has an adhesion strength of 8 between the mortar wall material and the base plate.
ko/aI! 100% in the horizontal shear strength test
Ko was 1/20.

Furthermore, there was no peeling and only a few hair cracks, indicating that the mortar wall had excellent sound absorption and insulation properties.

As mentioned above, the mortar base plate according to the present invention suppresses shrinkage of the mortar wall material by the elasticity of the female locking piece and the male locking piece, and significantly reduces the occurrence of cracks. There is.

In addition, the base plate connecting portion is provided with a locking piece for the female mold and a locking piece for the male mold of a fitting structure, which prevents cracks from occurring at the joint portion of the weakest part of the mortar wall.

Furthermore, since the mortar wall material and the locking pieces for the female mold and the locking piece for the male mold have strong adhesion, the mortar wall does not come off.

In addition, because the base plate is rigid, it also functions as a structural material.
It has the advantage of effectively preventing cracks in mortar walls.

Furthermore, the base plate is characterized by being easy to manufacture, highly economical, and easy to construct.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an embodiment of the mortar base plate according to the present invention, Figs. 2 a `` e and 3 show an example of a locking piece which is a main part of the mortar base plate according to the present invention. The vertical cross-sectional view and FIG. 4 are explanatory diagrams showing a portion of the mortar wall extracted when the mortar wall is formed using the base plate. 1...Substrate, 2, 3... ...For female type, piece,
4...Insulation board. Locking for male type

Claims (1)

[Scope of utility model registration request] One side edge of a hard substrate larger than the surface area of the heat insulation board is aligned with the one side edge of the heat insulation board on a long heat insulation board, and is laminated integrally, and the other side edge is laminated with an overlapping piece. In the mortar base plate, a large number of locking pieces for female molds are formed on the surface of the polymerized piece and near the other side edge, and are spread out from the surface of the hard base plate in parallel with the side edge, and one part of the hard base plate itself. At the side end facing the overlapping piece of the hard substrate, a male locking piece protruding into a mountain shape that can be fitted into the female locking piece formed at the overlapping part is attached to the side. parallel to the edge,
A mortar base plate characterized in that the mortar base plate is formed at a position corresponding to the female locking piece formed on the overlapping piece.