JPH0624521Y2 - Directly attached floor material - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to an improvement of a wood-based direct-adhesion flooring material that is directly applied to a concrete floor slab or the like.

(Prior Art) Conventionally, the above-mentioned direct-adhesion floor material is used as shown in FIGS.
As shown in the figure, a cushion material b such as a foamed plastic sheet or a foamed rubber sheet is provided on the lower surface of the rectangular wooden floorboard a.
It is known that the cushion material b is used to absorb irregularities on the surface of the concrete floor slab c so that the cushion material b can be directly bonded to the concrete floor slab c.

In addition, in the above-mentioned direct-adhesion floor material, in order to join a plurality of floor materials to each other and prevent a step difference from occurring at the joint portion of the floor materials, the short-side side surfaces and the relative side surfaces of the wooden floor board a facing each other The protrusions d each having a shape that can be fitted to each other on the long side surface
And a groove groove e are provided, and the protrusions d and the groove groove e are set to have substantially the same size.

(Problems to be Solved by the Invention) The above-mentioned direct-adhesion floor material is usually attached to the concrete floor slab c by an adhesive without nailing. Further, the wooden floor board a is in a dry state before construction, but since it is directly attached to the concrete floor slab c, it often absorbs moisture from the surface of the concrete floor slab c and expands,
When the wooden floor board a expands in this way, the cushion material b has elasticity, so that the elongation of the wooden floor board a cannot be suppressed.

This expansion of the wooden floor board a is often absorbed by the gap in the fitting direction between the projecting ridges d and the groove grooves e which are fitted to each other, but when the wooden floor board a is rectangular, FIG. As shown in, the joint spacing of the floor slabs (the spacing of the fitting portions) is different between the long side and the short side of the floor board, and the spacing of the joint f on the short side is larger than that of the joint g on the long side. It is larger than the interval. For this reason,
When the ridges d and the groove e are made to have the same size as in the conventional case, on the short side of the wooden floor board a, there is only a gap in the fitting direction between the ridge d and the groove e. Since the expansion of the wooden floor board a cannot be sufficiently absorbed, the wooden floor board a is likely to have a wavy warp in the longitudinal direction.

In order to prevent the warpage of the wooden floor board a, the ridge d
It is conceivable to increase the gap between the floor groove e and the groove e over the entire circumference of the floor board. However, if this gap is increased, when the cushion material b provided on the lower surface of the wooden floor board a is reduced in thickness, A new problem arises that the floorboard cannot be regulated by the fitting portion and a step difference occurs on the floor surface.

In view of the above, the present invention is to prevent the wooden floorboards from making a step difference even if the cushioning material is reduced in thickness, and to prevent the wooden floorboard from being warped even when the wooden floorboard absorbs moisture. To aim.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention relates to the fitting of the actual processing parts on the short side of the wooden floorboard to the fitting of the actual processing parts on the long side. It should be set sweeter than.

Specifically, the solution provided by the present invention is that a cushion material is provided on the lower surface of a rectangular wooden floorboard, and the short side surfaces and the long side surfaces that face each other of the wooden floorboard are fitted to each other. Assuming a directly-attached flooring material provided with an actual processed part consisting of ridges and grooves with a possible shape, the actual processed part on the side of the short side and the actual processed part of the side on the long side The size of the ridges on the side of the short side should be smaller or smaller than the size of the ridges on the side of the long side so that a gap in the direction of fitting that is relatively larger than that of the mating parts is formed. The groove on the side surface on the side of the side is set to be larger than the groove on the side surface on the side of the long side.

(Operation) With the above-described configuration, a gap in the mating direction that is larger than the mating portion of the actual machined portions on the side of the long side is formed in the mating portion of the machined portions on the side of the short side. The amount of extension absorption per one part of the short side fitting part is larger than the amount of extension absorption per one part of the long side fitting part.

Further, since the fitting portion on the long side is connected with a small gap, even if there is a sink of the floor plate due to a decrease in the thickness of the cushion material, the fitting portion on the long side of the adjacent floor plate is firmly connected. Connect to prevent the occurrence of steps.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

1 to 4 show a direct-adhesive floor material A according to a first embodiment of the present invention. The direct-adhesive floor material A has a cushion material 2 adhered to the lower surface of a rectangular wooden floor board 1. It will be.

The wooden floorboard 1 is not particularly limited as long as it is a wooden material such as plywood or particle board and has strength as a floorboard.

As the cushion material 2, a foamed sheet such as a foamed polyethylene sheet or a foamed rubber sheet, or a fiber sheet made of felt such as synthetic fiber or natural fiber can be used, but the fiber sheet is excellent in elasticity and resilience. With
It is particularly preferable because it has good compatibility with a concrete floor slab.

One long side surface 11 and one short side surface 12 of the wooden floorboard 1.
On both sides, a long side ridge 13A and a short side ridge 14A, both of which have a trapezoidal cross section and substantially the same size, are provided in a protruding manner.

On the other hand, on the other long-side side surface 15 of the wooden floorboard 1, the cross-section is similar to the above-mentioned long-side protruding strip 13A,
A long side rib groove 17A having a size slightly larger than the cross section of the long side rib 13A is provided, while the other short side face 16 has a cross section similar to the long side rib groove 17A. A short-side side groove 18A having a shape larger than that of the long-side side groove 17A is provided.

As described above, the actual processing portion including the long side projections 13A and the long side projection grooves 17A, and the short side projections 14A and the short side projection grooves 18
Since the actual processing part that is equivalent to A was configured, the short side surface 1
The long side surface 1 is included in the mating parts of the actual machining parts of 2, 16
A gap in the fitting direction is formed that is relatively larger than the mating portions of the actual machining portions 1 and 15. For this reason, since the amount of extension absorption per one part of the short side fitting portion becomes larger than the amount of extension absorption per one part of the long side fitting portion, warping occurs even if the wooden floorboard 1 absorbs moisture. There is no. In addition, since the long side of the floor plate can be strongly connected while the long side fitting portion remains tightly fitted, a step difference occurs between the wooden floor plates 1 even if the cushion material 2 is reduced in thickness. do not do.

The extent to which the short side ridges 14A are made smaller than the long side ridges 13A can be appropriately selected depending on the material of the wooden floor board 1, but when the wooden floor board 1 is made of plywood, it is about 1 mm. Is preferred.

Further, as shown in FIGS. 3 and 4, the groove 17A, 1
It is preferable to make the length and width dimensions of the wooden floorboard 1 on the lower side than 8A smaller than the dimensions on the upper side. In this way, when the directly attached floor material A is fitted,
Since a gap s is formed between the side surfaces on the lower side of the wooden floor board 1 and the side surfaces of the cushioning material 2, even if the wooden floor board 1 absorbs moisture from its lower surface and the lower side extends more than the upper side, The difference in elongation between the upper and lower parts is conveniently absorbed.

5 to 7 show a direct-adhesive flooring material A according to a second embodiment of the present invention. In this direct-adhesive flooring material A, one short side surface 12 of the wooden floorboard 1 has a cross section. A trapezoid having a trapezoidal shape similar to that of the long side projection 13B provided on the long side surface 11 and having a size smaller than that of the long side projection 13B.
4B is projected.

On the other hand, the other short-side side surface 16 and the long-side side surface 15 of the wooden floorboard 1 have cross-sections similar to those of the projections 13B and 14B, and their sizes are long-side projections 13B. A side groove 18B on the long side and a groove 17B on the long side which are slightly larger than the cross section and are equal to each other are provided.

As described above, the actual processing portion including the long side protrusions 13B and the long side protrusion grooves 17B, and the short side protrusion 14B and the short side protrusion grooves 1
Since the actual processing part consisting of 8B and 8B is configured, the short side surface 1
The long side surface 1 is included in the mating parts of the actual machining parts of 2, 16
A gap in the fitting direction is formed that is relatively larger than the mating portions of the actual machining portions 1 and 15. For this reason, since the amount of elongation absorption per one short side fitting portion is large, the wooden floor board 1 does not absorb moisture and warp as in the first embodiment, and the cushioning material 2 is used. Even if the thickness of the wooden floorboard 1 is reduced, the long side fitting portion is strongly fitted, and no step difference occurs between the wooden floorboards 1.

It should be noted that the shape of the short-side protrusion 14B provided on the short-side side surface 12 is changed to that of the second embodiment instead of the bottom and the long-side protrusion 13B having the same dimensions as the long-side protrusion 13B. A trapezoid having a small height is provided, so that the mating portions of the actual machining portions of the short side surfaces 12 and 16 are relatively relative to the mating portions of the actual machining portions of the long side surfaces 11 and 15. A large gap in the fitting direction may be formed.

8 to 10 show a modified example of the second embodiment, in which a plurality of sheets, for example, four directly-attached flooring materials A are arranged on the long side so that the short side surface 12 is slightly displaced in the long side direction. The ridge 13B provided on the side surface 11 and the groove 17B are fitted in advance.

By fitting in advance in such a shape, the construction time can be shortened and the joints of the short side fitting portions are aligned in a straight line because the short side fitting portions are pre-shifted in the length direction. Even if the fitting of the short side of the wood flooring 1 is loosened, the long side fitting portion always supports both sides of the short side fitting portion. It is difficult for the difference in level to occur.

Further, in the case of joining in such a staircase shape, in the conventional structure, the fitting portions on the long side and the short side are both tight, so that a plurality of directly-adhered floor coverings can be used at the construction site. It was difficult to fit both fitting parts at the same time,
If the short side is loosely fitted as in the present invention, the short side can be fitted smoothly and only the long side needs to be tightly fitted. Easy to fit at the construction site.

(Effects of the Invention) As described above, according to the direct-adhesion flooring material according to the present invention, the mating portion of the actual machining portion on the side of the short side is fitted to the mating portion of the actual machining portion on the side of the long side. Since there is a gap in the mating direction that is larger than the part, no warpage occurs even if the wooden floorboard absorbs moisture, and the long side mating part of the rectangular floorboard is left tightly mated. Since the floor boards can be connected to each other, even if the cushioning material is reduced in thickness, no step difference occurs between the wooden floor boards.

[Brief description of drawings]

1 to 4 show a direct-adhesive flooring material according to a first embodiment of the present invention. FIG. 1 is a perspective view, FIG. 2 is a plan view, and FIGS. 3 and 4 are partial sectional views. 5 to 7 show a second embodiment of the present invention, which is a direct-adhesive flooring material. FIG. 5 is a plan view, FIGS. 6 and 7 are partial sectional views, and FIGS. Shows a direct-adhesive flooring material which is a modified example of the present invention. FIG. 8 is a plan view and FIG.
The figure is a side view, FIG. 10 is a plan view showing a fitted state, and FIG.
Fig. To Fig. 13 show a conventional direct-adhesion flooring material, Fig. 11 is a plan view showing a construction state, and Fig. 12 is XII- in Fig. 11.
FIG. 13 is a sectional view taken along line XIII-XIII in FIG. 11, and FIG. 13 is a sectional view taken along line XII. A ... Directly attached floor material, 1 ... Wooden floor board, 2 ... Cushion material, 1
1 ... One long side surface, 12 ... One short side surface, 13
A, 13B ... Long side projections, 14A, 14B ... Short side projections, 15 ... Other long side surfaces, 16 ... Other short side surfaces, 1
7A, 17B ... Long side groove, 18A, 18B ... Short side groove.

Claims (1)

[Scope of utility model registration request] 1. A cushion material is provided on the lower surface of a rectangular wooden floorboard, and a protruding strip and a strip having a shape capable of fitting with each other on the opposing short side surface and opposing long side surface of the wooden floorboard. In a direct-attached flooring material provided with an actual processing part consisting of a groove, the fitting part of the actual processing part on the side of the short side is relatively relative to the fitting part of the actual processing part on the side of the long side. Make the size of the ridge on the side of the short side smaller than the size of the ridge on the side of the long side so that a large gap in the mating direction is formed. A direct-adhesive flooring material characterized by being set larger than the groove on the side surface.