JPH06330558A - Deck material - Google Patents

Abstract

PURPOSE:To preclude the possibility that deformation and peeling between a core material and a surface layer material occur. CONSTITUTION:A deck material 6 is formed in a long-sized plate, and mainly composed of a core material 7 made of expanded polyvinyl chloride and a surface layer material 8 made of rigid polyvinyl chloride covering the surface of the core material 7 and being integrally molded with the core material 7. Wood meal is mixed into a raw material at the time of injection molding in the surface layer material 8, thus suppressing the linear expansion coefficient of the surface layer material 8 to approximately four or five. The expansion ratio of the core material 7 is set to approximately two and a half times, and the linear expansion coefficient of the core material 7 after expansion is set to approximately four or five. Accordingly, the linear expansion coefficient of the surface layer material 8 and the linear expansion coefficient of the core material 7 are equalized approximately.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deck material formed by arranging a plurality of floors of a deck mainly installed outdoors such as a building in parallel.

[0002]

2. Description of the Related Art As a conventional one of this kind, there is known one as shown in FIGS. That is, as shown in FIG. 15, the deck 2 arranged outdoors of the building 1 has a plurality of long deck materials 3 arranged in parallel,
The floor portion 4 of this deck 2 is mainly configured.

Since this type of deck material 3 is used outdoors, it is often made of synthetic resin in consideration of corrosion resistance. The deck material 3 made of synthetic resin uses, as the core material 5a, foamed polyvinyl chloride or the like foamed about 2 to 5 times. Then, around the core material 5a, a hard polyvinyl chloride or the like which is not foamed is used as the surface layer material 5b, and the surface layer material 5b and the core material 5a are integrally molded to prevent the fading of the surface and the strength. To improve the weather resistance (Jitsuko Sho 61-3).
5114, Japanese Utility Model Laid-Open No. 47-23248, Japanese Utility Model Laid-Open No. 50-76632, etc.).

[0004]

However, in such a conventional deck material 3, in order to adjust the widthwise dimension at the construction site, it is possible to cut along the longitudinal direction as shown in FIG. It is often done. The expanded polyvinyl chloride used for the core material 5a has a linear expansion coefficient of about 4 to 5 because it has been expanded, whereas the rigid polyvinyl chloride used for the surface layer material 5b has a linear expansion coefficient of , About 7 because there is no foaming. For this reason,
Due to the temperature change, the core material 5a and the surface layer material 5b, which are integrally formed as the deck material 3, once have different lengths in the longitudinal direction.

Therefore, in such a deck material 3,
Deformation due to temperature change and peeling between the core material 5a and the surface layer material 5b significantly appeared during this cutting, and as shown in FIG. 17, it was often curved.

[0006] Therefore, an object of the present invention is to provide a deck material that is free from deformation and separation between the core material and the surface material.

[0007]

In order to solve the above-mentioned problems, according to the present invention, a flat plate-shaped long deck material constituting a deck floor portion, wherein the deck material is a foamed synthetic resin such as foamed polyvinyl chloride. A core material made of a material, and a surface layer material made of a synthetic resin material such as hard polyvinyl chloride covering the surface portion of the core material, and by mixing wood powder into the surface layer material, The deck material is characterized in that the linear expansion coefficient of the surface material is substantially the same as the linear expansion coefficient of the core material.

[0008]

[Operation] According to this structure, since the surface layer material and the core material have substantially the same linear expansion coefficient, even if the temperature changes,
Expands and contracts for approximately the same length. For this reason, there is no possibility of causing deformation or peeling as in the conventional case.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described below with reference to the drawings.

1 and 2 show a first embodiment of the present invention. The same or equivalent parts as in the conventional example will be described with the same reference numerals.

First, the structure will be described. In the figure, reference numeral 6 is a deck material made of a synthetic resin material. By arranging a plurality of deck materials 6 in parallel, as shown in FIG. Floor 4 of deck 2 installed outside building 1
Is mainly configured.

The deck material 6 has an elongated flat plate shape, and a core material 7 made of foamed polyvinyl chloride and a hard polychloride covering the surface portion of the core material 7 and integrally molded with the core material 7. It is mainly composed of a vinyl surface layer material 8.

Then, when the surface layer material 8 is injection-molded, wood powder is mixed into the raw material so that the linear expansion coefficient of the surface layer material 8 is suppressed to about 4-5. . Further, the expansion ratio of the core material 7 is about 2 or 5 times, and the linear expansion coefficient of the core material 7 after foaming is about 4 to 5. Therefore, the coefficient of linear expansion of the surface layer material 8 and the coefficient of linear expansion of the core material 7 are set to be substantially the same. As shown in FIG. 2, the deck materials 6 are fixed to the horizontal rails 9 with fixing nails 10 to form the floor portion 4.

In the deck material 6 of the first embodiment having such a structure, the surface layer material 8 and the core material 7 have substantially the same linear expansion coefficient 4.
Since it has .about.5, it expands and contracts by substantially the same length even if the temperature changes. For this reason, it is possible to improve the weather resistance by the surface layer material 8 and eliminate the possibility of deformation and peeling as in the conventional case.

Further, since wood powder is mixed into the surface layer material 8 at the time of molding, the surface of the surface layer material 8 has natural irregularities, gloss is suppressed, and a texture similar to that of natural wood is exhibited. . Therefore, the appearance quality can be improved together with the anti-slip effect.

3 and 4 show a second embodiment of the present invention. The same or equivalent parts as those in the first embodiment will be described with the same reference numerals.

In the deck material 11 of the second embodiment, a fitting recess 11a is formed at one end in the width direction, and the fitting recess 11a of another deck material 11 adjacent to the other end is formed.
A fitting convex portion 11b that fits with respect to is formed.

Then, as shown in FIG. 4, the fitting convex portion 11b of the deck member 11 on the left side of the drawing is fixed to the horizontal rail 9 by the fixing nail 10. Then, the fitting recess 11 of the adjacent deck material 11
a is fitted to the fitting convex portion 11b of the fixed deck material 11, the adjacent deck material 11 is placed, and the fitting convex portion 11b of the adjacent deck material 11 is fixed by the fixing nail 10 to the cross rail. The work of fixing to 9 is repeated to form the floor portion 14. The rest of the configuration is substantially the same as that of the first embodiment, so a description thereof will be omitted.

In the deck material 11 of the second embodiment constructed as described above, in addition to the operation of the first embodiment, the adjacent deck materials 11, 11 are further fitted with the fitting concave portion 11a and the fitting convex portion 1.
Since the floor portion 14 is configured by fitting with 1b, the gap between the deck members 11 and 11 is eliminated, the rigidity is improved, and the head of the fixing nail 10 is visible from the outside. There is no appearance quality is good.

5 and 6 show a third embodiment of the present invention. The same or equivalent parts as those in the first embodiment will be described with the same reference numerals.

In the deck material 21 of the third embodiment, a fixing groove 21a is formed in the substantially central portion along the longitudinal direction. The bottom portion 21b of the fixing groove portion 21a is made of the same hard polyvinyl chloride as the surface layer material 8 of the other portion, and is made thicker than the surface layer material 8 of the other portion.

Then, as shown in FIG. 6, the bottom portion 21b of the fixing groove portion 21a of the deck member 21 is fixed to the cross rail 9 with screws 22. The rest of the configuration is substantially the same as that of the first embodiment, so a description thereof will be omitted.

In the deck material 21 of the third embodiment constructed as described above, in addition to the effect of the first embodiment, the fixing nails 10 ... Are no longer required, and moreover, they are fixed every other row in the lateral width direction. Since it suffices to do so, it is possible to arrange using a small number of screws 22 ....

7 and 8 show a fourth embodiment of the present invention. The same or equivalent parts as those in the first embodiment will be described with the same reference numerals.

In the deck material 31 of the fourth embodiment, the locking step portions 31a, 3 having a substantially U-shaped cross section are formed on both end faces in the width direction.
1a is formed. In addition, a locking tool 32 made of metal is used for disposing the deck material 31. This locking device 3
2 has a screw insertion hole 32a and flange portions 32b, 32b formed on both sides of the screw insertion hole 32a and for locking the locking step portion 31a. The deck material 3
As shown in FIG. 8, the locking tool 32 is fixed to the cross rail 9 with a screw 22 so that the locking step 31a is locked and fixed to the flange 32b of the locking tool 32. I am doing it. The rest of the configuration is substantially the same as that of the first embodiment, so a description thereof will be omitted.

In the deck material 31 of the fourth embodiment constructed as described above, in addition to the operation of the first embodiment, the fixing nails 10 and the screws 22 do not penetrate the deck material 31 and cross rails. Since it can be attached to No. 9, cracks are not generated from the through holes, and the weather resistance can be further improved.

9 and 10 show a fifth embodiment of the present invention. The same or equivalent portions as those in the fourth embodiment will be described with the same reference numerals.

In the deck material 41 of the fifth embodiment, locking step portions 41a, 41a are formed on both end faces in the width direction. The locking member 32 made of metal is used for disposing the deck member 41, as in the fourth embodiment. Therefore, in the deck material 41, the locking step portion 41a is engaged with the flange portion 32b of the locking tool 32 by fixing the locking tool 32 to the cross rail 9 with the screw 22 as shown in FIG. It is stopped and fixed. The rest of the structure and operation are substantially the same as those of the fourth embodiment, so the description thereof will be omitted.

FIG. 11 shows a sixth embodiment of the present invention. The same or equivalent parts as those in the first embodiment will be described with the same reference numerals.

In the deck material 51 of this sixth embodiment, locking step portions 51a, 51a are formed on both end faces in the width direction. The screw mounting surface 51b of the locking step 51a is
Inclined toward the outside. And this deck material 5
A flange portion 51c partially covering the locking stepped portion 51a is provided above the locking stepped portions 51a, 51a on both side end faces of the No. 1 so as to project outward along the longitudinal direction of the deck material 51. ing.

To arrange this deck material 31 on the horizontal rail 9,
As shown in FIG. 11, the screws 22 ... Are used. That is, the screws 22 ... Are screwed to the horizontal rail 9 from the screw mounting surface 51b so as to obliquely penetrate the locking step 51a to fix the deck member 51. The rest of the configuration is substantially the same as that of the first embodiment, so a description thereof will be omitted.

In the thus constructed deck material 51 of the sixth embodiment, in addition to the operation of the first embodiment, the screws 22 are hidden behind the collar portion 51c after the deck material 51 is disposed. It is hard to see from the outside. Therefore, the appearance quality is further excellent. Moreover, since the screw 22 is obliquely screwed to the horizontal rail 9, the screwing portion can be set to be long, and is difficult to be pulled out. Moreover, the locking step portion 51a has the screw mounting surface 51b.
Is inclined toward the outside, it has a substantially wedge-shaped cross section, and the strength of this portion is improved.

FIG. 12 shows a seventh embodiment of the present invention. The same or equivalent parts as those of the sixth embodiment will be described with the same reference numerals.

In the deck material 61 of the seventh embodiment, similarly to the locking step 51a of the sixth example, the locking step 61a is formed on the side end surface in the width direction.

The deck material 61 is cut into a predetermined dimension along the lengthwise direction in order to adjust the length in the width direction at the construction site. Foamed polyvinyl chloride as the core material 7 is exposed on the cut surface 61b. Therefore, it is possible to easily form the locking step portion 61c having a predetermined shape by using the step portion forming planner 62. The rest of the configuration is substantially the same as that of the first embodiment, so a description thereof will be omitted.

In the deck material 61 of the seventh embodiment constructed as described above, in addition to the operation of the first embodiment, the core material 7 and the surface material 8 are also used when cutting along the longitudinal direction. Since and have substantially the same linear expansion coefficient, peeling and deformation do not occur,
It is possible to set the predetermined dimensions freely for processing.

Since the core material 7 is exposed, the cut surface 61b is easy to process. Therefore, even the locking step 61c and the like having a complicated shape can be formed in a short time at the construction site.

FIG. 13 shows an eighth embodiment of the present invention. The same or equivalent parts as those in the first embodiment will be described with the same reference numerals.

In the deck material 71 of the eighth embodiment, a plurality of wires 72 are arranged along the longitudinal direction in the core material 7 of the deck material 6 of the first embodiment. The rest of the configuration is substantially the same as that of the first embodiment, so a description thereof will be omitted.

In the deck material 71 of the eighth embodiment thus constructed, in addition to the operation of the first embodiment, the wires 72 are inserted along the longitudinal direction, so that the strength is increased. There is. Therefore, it is possible to reduce the occurrence rate of stepping cracks and punching.

FIG. 14 shows a ninth embodiment of the present invention. The same or equivalent parts as those of the eighth embodiment will be described with the same reference numerals.

In the deck material 81 of the ninth embodiment, a plurality of wires 72 are arranged along the longitudinal direction in the core material 7 as in the case of the eighth embodiment. Then, a part of the deck material 81 is thinned to form arch portions 81a, 81a. The rest of the configuration is substantially the same as that of the eighth embodiment, so the explanation is omitted.

In the thus constructed deck material 81 of the ninth embodiment, in addition to the operation of the eighth embodiment, a part of the deck material 81 is further thinned to reduce the weight.

The deck material 71 of the eighth embodiment has substantially the same construction as the deck material 6 of the first embodiment in which the wires 72 are arranged on the core material 7, but the present invention is not limited to this. , Core materials 7 such as the deck materials 11 of the other second to seventh embodiments
Of course, the wires 72 may be inserted in the inside along the longitudinal direction.

In the deck material 6 etc. of each of the above-mentioned embodiments, wood powder is mixed into the raw material of the hard polyvinyl chloride constituting the surface layer material 8 to suppress the linear expansion coefficient. Not limited to this, for example, any material such as polystyrene, polypropylene, ABS resin or the like may be used as the surface layer material 8 as long as it is a synthetic resin material capable of suppressing the linear expansion coefficient by mixing wood powder. Is.

[0046]

As described above, according to the present invention, since the skin material and the core material can be set to have substantially the same linear expansion coefficient, there is a risk of causing deformation or peeling as in the conventional case. Lost.

In addition, since the length in the width direction is adjusted at the construction site, even if the deck material is cut in the longitudinal direction, the predetermined construction can be performed without peeling or deformation. Exert a beneficial effect.

[Brief description of drawings]

FIG. 1 is a perspective view showing a deck material according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view along the width direction showing a state where the deck material of the same embodiment is arranged on the deck.

FIG. 3 is a perspective view showing a deck material of a second embodiment.

FIG. 4 is a cross-sectional view taken along the width direction showing how deck materials of the same embodiment are arranged on a deck.

FIG. 5 is a perspective view showing a deck material of a third embodiment of the present invention.

FIG. 6 is a cross-sectional view along the width direction showing a state where the deck material of the same embodiment is arranged on the deck.

FIG. 7 is a perspective view showing a deck material of a fourth embodiment.

FIG. 8 is a cross-sectional view taken along the width direction showing a state where the deck material of the same embodiment is arranged on the deck.

FIG. 9 is a perspective view showing a deck material of a fifth embodiment of the present invention.

FIG. 10 is a cross-sectional view along the width direction showing a state where the deck material of the same embodiment is arranged on the deck.

FIG. 11 is a cross-sectional view taken along the width direction showing how the deck material of the sixth embodiment is arranged on the deck.

FIG. 12 is a perspective view showing a deck material of a seventh embodiment.

FIG. 13 is a perspective view showing a deck material of an eighth embodiment.

FIG. 14 is a perspective view showing a deck material of a ninth embodiment.

FIG. 15 is a perspective view of a building illustrating a layout position of a deck.

FIG. 16 is a perspective view showing a state of cutting a conventional deck material.

FIG. 17 is an explanatory diagram showing a cut deck material of a conventional example.

[Explanation of symbols]

 6, 11, 21, 31, 41, 51, 61, 71, 81 Deck material 7 Core material 8 Surface material

Claims (1)

[Claims] 1. A flat plate elongated deck material constituting a deck floor, wherein the deck material is a core material made of a foamed synthetic resin material such as foamed polyvinyl chloride, and a surface of the core material. A surface layer material composed of a synthetic resin material such as hard polyvinyl chloride covering the portion, and by mixing wood powder into the surface layer material, the linear expansion coefficient of the surface layer material is adjusted to the linear expansion coefficient of the core material. Deck material characterized by being almost the same as.