JPH0316347Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to architectural panels used for external walls of buildings, etc.
The present invention relates to the structure of a portion into which fixing nails or screws are driven in an extruded panel made of an inorganic material and having a plurality of hollow holes penetrating the inside in the longitudinal direction.

(Prior art) Conventionally, in order to improve productivity and reduce weight of architectural panels used for exterior wall materials, etc.
An extruded panel formed by extrusion molding an inorganic material such as calcium silicate or cement, in which a plurality of hollow holes penetrating in the long side direction of the panel body are arranged horizontally in the short side direction of the panel body. It is known that the device is provided in a shape.

In such construction panels, conventionally, as shown in Japanese Utility Model Publication No. 59-435, the thickness of the back side wall of any one of the hollow holes is made thicker than that of other hollow holes. At the same time, holes are provided at appropriate intervals in the long side direction of the surface side of the hollow hole, and the holes are deep enough to reach the hollow hole and large enough to allow the head of the fixing screw to pass through to prevent the crack. There has been proposed a device that can be securely fixed with screws without causing problems, and that can improve the appearance by hiding the heads of the screws.

(Problem to be solved by the invention) However, as seen in the above-mentioned publication, in the conventional method, it is necessary to make holes or recesses in the panel surface in advance to hide the heads of fixing screws or nails. As a result, it is not possible to improve productivity, which is the original aim.
On the contrary, productivity will be poor, and since the driving position of screws etc. is limited by the position of the hole etc. mentioned above, depending on the construction site, it may be difficult to drive the screws etc. depending on the position of the base material and the size of the head of the screw etc. There are cases where fixation using the holes etc. mentioned above is not possible.

Further, since the material of the extruded panel is hard and brittle, if the back side is thick as described above, the screws or nails may bend in the middle when driven in, and it takes effort to drive them. Furthermore, stress is concentrated on the back side flesh part during driving, which tends to cause not only partial breakage but also continuous cracks on the front and back sides, which causes problems such as a significant decrease in structural strength and water leakage.

The present invention has been made in view of the above points, and its purpose is to properly set the shape and structure of the hollow hole where the nail or screw will be driven and the thickness of its flesh. By driving the head of the nail or screw, the superficial meat part is actively depressed and destroyed to hide the head, thereby eliminating the need to prepare a hole etc. in advance to hide the head of the nail or screw. This makes it possible to drive and fix nails or screws smoothly at any position in the long side direction, without bending them or creating continuous cracks on the front and back sides of the panel. The object is to allow easy driving and fixing.

(Means for Solving the Problems) In order to achieve the above object, the solution of the present invention is such that a plurality of hollow holes penetrating in the long side direction of the panel body are arranged horizontally in the short side direction of the panel body. For this purpose, the hollow holes at arbitrary positions corresponding to the fixing points among the hollow holes are arranged in two stages in the thickness direction of the panel, with holes on the front side and holes on the back side. form. Furthermore, although the surface side flesh corresponding to the surface side hole is not easily destroyed by normal external impact, when the head of a fixing nail or screw is driven in, the The structure is such that it is formed to a thickness that allows it to cave in due to force.

(Function) With the above configuration, in the construction panel of the present invention, when fixed to the base with fixing nails or screws,
When the nail or screw is driven in at any position in the long side direction of the fixing point corresponding to the two-stage hollow hole of the front side hole and the back side hole, the head is buried below the panel body surface. In response to the driving load of the panel, the surface side meat part caves in by the width of its head, and the panel is fixed to the base with the head of the nail or screw sunk into the surface side hole and hidden.

In that case, since there is a back side hole between the middle layer meat part and the back side meat part on the back side of the front side hole, the penetration resistance of the nail or screw is eased and the nail or screw can be easily inserted. It is possible to penetrate smoothly without bending and is easily driven, and the stress at that time is dispersed, resulting in a slight crack on the inner surface of the front side of the back side hole, but a continuous crack on the front and back sides. Never. Moreover, since it is not necessary to drive the head of the nail or screw into the middle layer, the middle layer does not cave in and a sufficient fixing force is ensured. Furthermore, if the surface layer side wall portions corresponding to the hollow holes other than the surface layer side wall portions are set to be thick, the strength of the entire panel will not decrease so much.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

Figure 1 shows a construction panel A according to an embodiment of the present invention, in which 1 is a panel made of cement board, asbestos-cement board, calcium silicate board, asbestos-cement calcium silicate board, and other materials whose main components are gypsum, perlite, etc. A panel body made of inorganic materials such as
Inside the panel body 1, a large number of hollow holes 2 penetrating in the long side direction of the panel body are formed in a horizontal row in the short side direction of the panel body, and are integrally molded by extrusion molding. Incidentally, reference numeral 3 denotes joining portions provided at both end portions of the panel body 1.

Then, in the long side direction, a predetermined location on the surface of the panel body 1 (in the figure, a location near both ends in the short side direction),
Concave grooves 4, 4, . . . indicating nailing positions are formed. Furthermore, most of the hollow holes 2 are formed of a single hole with a square cross section, but the hollow holes 2 in the portions corresponding to the grooves 4 are on the surface side, each having a horizontally elongated rectangular cross section. Hole 2a and back side hole 2b
It is formed in two stages in the thickness direction of the panel. The front side hole 2a and the back side hole 2b are provided facing each other in the panel thickness direction, as shown in detail in FIGS. 2a is set smaller than the back side hole 2b. Furthermore, the surface side flesh portion 1a corresponding to the surface side of the surface side hole 2a is the surface layer side flesh portion 1d of the other hollow hole 2, the middle layer side flesh portion 1b between the surface side hole 2a and the back side hole 2b, and The head 5a of the nail 5 is formed thinner than each thickness of the back layer side flesh part 1c corresponding to the back side of the back side hole 2b, and is not easily destroyed by normal external impact. The thickness is set so that when the hole is driven, it will cave in due to the driving force.

Therefore, when constructing the above-mentioned architectural panel A, as shown in FIG.
It is brought into contact with a base 6 such as a trunk edge, and fixed by driving nails 5 into the grooves 4 on the surface of the panel body 1. Then, an outer wall or the like is constructed by sequentially fixing adjacent building panels A to this fixed building panel A while joining them together.

In that case, the above-mentioned nail 5 is driven into the two-stage hollow hole 2 consisting of the front side hole 2a and the back side hole 2b corresponding to the groove 4;
The surface layer side flesh part 1a corresponding to the surface side of a is formed thin enough to be depressed by the driving of the head 5a of the nail 5, and the material of this panel body 1 itself is strong against compression. In particular, it has the property of being easily chipped due to tension or peeling, so first, when the tip of the nail 5 reaches the inner surface on the surface side of the surface side hole 2a, the inner surface is chipped, and then the head 5a of the nail 5 cracks the inner surface. The head 5 is pressed by the driving force.
The nail 5 is easily depressed by the width a, and the nail 5 is driven with the head 5a of the nail 5 buried below the surface of the panel body 1 and accommodated in the surface side hole 2a. As a result, the heads 5a of the nails 5 are hidden from the surface of the panel body 1, improving the appearance, and the driving work in which the heads 5a are buried can be easily performed, improving workability. can be achieved. Particularly, as shown in FIG. 3, it is preferable to fill the recessed portion of the surface side flesh portion 1a with waterproofing filler 7, since this further improves the appearance and increases waterproofness. Therefore, since the surface side meat part 1a is sunken in this way and the nail 5 is driven with the head 5a hidden, a hole etc. to hide the head 5a is previously provided as in the conventional method. Therefore, it is possible to form panel A only by extrusion molding, which not only improves productivity, but also allows five nails to be driven at any position along the long side of panel A. Workability can be improved at the site without being so restricted by the position of the base 6, the size of the head 5a of the nail 5, etc. Note that the thickness of the surface side meat part 1a is set to such a value that it will not easily break due to normal external impact, so that the surface side meat part 1a will not cave in when the panel A is transported or handled. It will not be destroyed or destroyed.

Moreover, when driving the nail 5, since the back side hole 2b exists between the middle layer meat part 1b and the back layer side meat part 1c, the penetration resistance of the nail 5 is relaxed and reduced by the back side hole 2b. At the same time, by dispersing the stress, the nail 5 can be driven into the nail easily and smoothly without bending, and the workability can be further improved.
It is possible to prevent the occurrence of continuous cracks on the front and back sides, ensure good structural strength, prevent water leakage, and improve durability.

Further, as mentioned above, only the surface layer side wall portion 1a corresponding to the hollow hole 2 at the nailing position is set to have a relatively thin thickness, and the surface layer side wall portion 1d corresponding to the other hollow hole 2 is set to have a relatively thin thickness. Since it is set relatively thick, the strength of the entire panel A does not decrease so much, and the structural strength can be maintained satisfactorily.

Furthermore, when nailing, chipping occurs on the inner surface side of the back side hole 2b as in the case of the front side hole 2a, but the thickness of the middle layer 1b is relatively thick, and the head of the nail 5 Since the nails 5a are not driven in, they do not cave in, and as a result, the holding force of the nails 5 together with the back layer side flesh portion 1c is sufficiently ensured, and there is no reduction in the adhesion force, and the panel A
can be securely fixed.

It should be noted that the present invention is not limited to the above-mentioned embodiments, but also includes various other modifications. For example, in the above embodiment, the hollow holes 2 corresponding to the nailing positions are provided near both ends of the panel body in the short side direction, but one or more hollow holes 2 may be provided at any arbitrary position. Moreover, instead of the groove 4 described above, the nailing position may be simply indicated by a line or the like to indicate the nailing position.

Further, the cross-sectional shape of the hollow hole 2 (front side hole 2a and back side hole 2b) corresponding to the nailing position is not limited to the rectangular shape as described above, but may be circular or other polygonal shape. It is sufficient if the hollow holes are formed in two stages, a hole on the front side and a hole on the back side.

Furthermore, the present invention can be applied not only to the case where the panel A is fixed by driving the nails 5 as in the above embodiment, but also to the case where the panel A is fixed by screws.

(Effect of the invention) As explained above, according to the architectural panel of the invention, when the panel is fixed to the base with nails or screws at the fixing points on the surface, the holes on the surface side corresponding to the fixing points are The surface side of the hollow hole, which is composed of two stages, the hole and the hole on the back side, is depressed, and the head of the nail or screw can be driven into the panel by being buried below the surface of the panel, so the head can be easily hidden. This not only improves the appearance, but also eliminates the need to prepare a hole to hide the head in advance, which improves productivity. It can be driven in the position of , improving workability on site. Moreover, nails or screws can be driven easily and smoothly without bending or cracking the panel, and can be fixed with sufficient adhesion force, further improving workability. Sufficient structural strength can be ensured, water leakage can be reliably prevented, and durability can be improved.

[Brief explanation of the drawing]

Figures 1 to 3 show embodiments of the present invention;
The figure is a plan view of the construction panel, FIG. 2 is an enlarged sectional view of the main part thereof, and FIG. 3 is an enlarged sectional view of the main part in the construction state. 1...Panel body, 1a...Surface side meat part, 2...
Hollow hole, 2a...front side hole, 2b...back side hole,
5...fixing nail, 5a...head.

Claims (1)

[Scope of utility model registration request] A construction panel in which a plurality of hollow holes penetrating in the long side direction of the panel body are provided in horizontal rows in the short side direction of the panel body, and the hollow hole at an arbitrary position among the hollow holes is , the front side hole and the back side hole are formed in two stages in the panel thickness direction, and the surface side flesh part corresponding to the front side hole is formed when the head of a fixing nail or screw is driven. An architectural panel characterized in that it is formed to a thickness that allows it to cave in due to driving force.