JPS5911162Y2 - siding board - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a metal sitting board (hereinafter simply referred to as a board) suitable for the blank walls of buildings.

Generally, fire-retardant boards are known as external wall members, such as boards that are made of a metal plate with a concave shape and a core material made of one of gypsum board, perlite board, or slate board in the recessed part. .

This type of board had a structure in which no core material was present on the back surface of the female connecting portion, or even if there was a core material, most of the outer peripheral surface was covered with a metal plate to prevent it from peeling off.

As a result, the fire protection and insulation properties of the joints are extremely poor, and when the board is installed on the base, the fragile core material is often destroyed when nails are driven with a hammer.

In addition, when driving a nail, a moment is applied to the support end, which is the distance between the nail driving position and the support end of the female connecting part multiplied by the nail driving force, and a concentrated force is applied to that part. Since the material lacks cushioning properties, this part had the disadvantage of breaking.

Moreover, workers do not always drive nails with great care, and there is a possibility that they may hit not only the nail head but other parts as well, which often doubles the above-mentioned problems.

In order to eliminate these drawbacks, the present invention provides a protrusion in the middle of the fixed part of the surface material, the so-called extension part, a tongue piece at the tip, and a mounting hole for the nail guide in between, which corresponds to the base material. In addition, it prevents stress from concentrating on the core material, the so-called heat insulating layer, and further strengthens the integration by covering the exposed longitudinal surface. This provides a board that is easy to install.

An embodiment of the board according to the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a perspective view showing a typical example of the above-mentioned board, in which 1 is a metal surface material (hereinafter simply referred to as surface material) with a rectangular decorative surface 2 and its both sides facing vertically downward or inwardly. A main body portion 5 having a concave cross section formed from the side walls 3 and 4 extending at an angle (not shown), a male connecting portion 6 projecting the lower end of the side wall 3 outward, and a lower end of the other side wall 4 extending inwards. An insertion groove 7 that is recessed toward the side and has a U-shaped cross section, an extension section whose lower edge 8 extends outward, and a protrusion 10 formed along the longitudinal direction in the middle of the extension section 9 and the extension section. 9 has a tongue piece 11 bent outward, and a female connecting part 13 having a mounting hole 12 formed therein.

To explain further, mounting {L12 is for guiding nails for fixing the board to the base (not shown), and its shape is as shown in Figure 2a, with the collar 12a protruding inward. As shown in Figure b, the attachment hole 12 is formed so that the inorganic porous particles 15 can be easily caught in the attachment hole 12 having a tapered structure.

Note that the collars 12a and 12a' have long guides when driving nails, making it easier to drive the nail at right angles to the body rim (not shown), and the neck of the nail head and the mounting hole 12 fit together. This can suppress the destruction of the porous grains 15 and further strengthen the integration of the heat insulating layer and the surface material 1, which will be described below.

The appearance of the mounting hole 12 may be circular, oval, triangular, square, or
It consists of one long oval shape.

Reference numeral 14 denotes a heat insulating layer consisting of inorganic porous particles 15 and a binder 16.
It is laminated on the back surface of the extension part 9 of the holder and is integrated with the surface material 1.

The inorganic porous particles 15 are pearlite particles, shirasu balloons, glass balloons, calcined vermiculite, etc., and their size is preferably about 20 mmφ or less.

Further, the binder 16 is made of, for example, water glass and a weak acid hardening agent.

Reference numeral 17 is a backing material that covers the exposed surface of the heat insulating layer 14 in the longitudinal direction, and is mainly used to prevent destruction of the heat insulating layer 14 and to make the board have a sandwich structure.

The back material 17 is made of one or more of kraft paper, asbestos paper, synthetic resin film, asphalt felt, net-like material, and the like.

What has been described above is only one embodiment of the board according to the present invention, and as shown in FIG. It is also possible to curve the lower ends of both side walls inward.

As mentioned above, according to the board according to the present invention, when the board is installed on the base, a mounting hole with a brim that serves as a guide for nails and a protection for the heat insulating layer is drilled in the extension of the surface material. , the board can be easily fixed without destroying the brittle heat insulating layer, and the shape of the brim allows the board to be fixed without creating a gap between the nail and the mounting hole.

In addition, during nail driving, the hammer blow is not transmitted to the surface material, and the surface material 1 and the heat insulating layer 14 do not separate.

Furthermore, since the heat insulating layer is hard and brittle, and is made of a layer made of granular pearlite particles, etc., when driving a nail, only the part where the nail passes through will not be destroyed, and cracks will not occur in the entire heat insulating layer. There are some features that don't exist.

Furthermore, since the protrusion is provided in the middle of the extension, there is an advantage that waterproofness is greatly improved.

Furthermore, because the insulation layer is sandwiched between the backing material and the surface material, the mechanical strength of the board can be greatly improved.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the siding board according to the present invention, Fig. 2 a, l) is an explanatory view showing an example of the structure of the mounting hole, which is the main part of the present invention, Fig. 3 a, b FIG. 3 is a vertical cross-sectional view showing another embodiment. 1... Metal surface material, 12... Mounting hole, 14... Heat insulation layer, 17... Back material.

Claims (1)

[Scope of utility model registration request] A long main body with a concave cross section, a male connecting part with an insert edge provided by protruding the lower end of one side wall of the main body outward, and a lower end of the other side wall with a concave inward cross section. A U-shaped insertion groove, an extension portion extending the lower edge of the insertion groove outward, a tongue piece with the tip of the extension portion bent inward, and a shape formed along the side wall in the middle of the extension portion. A metal connecting part formed from a certain protrusion and a female connecting part having a mounting hole in the form of an inwardly protruding flange corresponding to the nailing position in the substrate between the protrusion and the tongue piece. A surface material, a heat insulating layer in which inorganic porous grains filled in the so-called concave portion of the surface material excluding the back surface of the male type connection portion and the back surface of the female type connection portion are bound with a binder, and the heat insulation layer is exposed in the longitudinal direction. A siding board characterized by being integrally constructed with a back material that covers the surface.