JP2001011971A - Floor panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a floor panel capable of improving the execution property. SOLUTION: A floor panel 11 comprises three joists 12 and four heat insulation members 13. Each joist 12 is joined with the heat insulation members 13 with one end 12b projected from the groove parts 14a-14c by the specified quantity C1. The length of each joist 12 is set to the specified value L1, and the length L2 of one side of the heat insulation members 13 is set to be equal to the length L1 of the joist 12. Thus, the other end 12c of the joist 12 is retracted in a formed area of the heat insulation members 13 by the specified quantity C1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor panel used for a wooden house.

[0002]

2. Description of the Related Art Conventionally, floor panels having a heat-insulating function are sometimes provided between frames of a floor for the purpose of improving heat insulation of a wooden house.

FIG. 11 shows a floor panel of this type. The floor panel 51 is composed of four joists 52 made of prismatic wood, and three heat insulating materials 53 arranged between the joists 52. The floor panel 51
The whole has a rectangular plate shape, and is set so that the short side is about 1000 mm and the long side is about 2000 mm.

[0004] As shown in FIG. 12, a plurality of such floor panels 51 are arranged side by side in a space surrounded by a shaft assembly 54, thereby improving the heat insulation of the floor.

[0005]

However, when a plurality of floor panels 51 are installed side by side between frames, the floor panels 51 are shifted from the positions where they should be installed as shown by the two-dot chain lines in FIG. Sometimes. Then, there is a possibility that all the floor panels 51 cannot be installed between the shafts. Therefore, in order to accurately install each floor panel 51 at a predetermined position, it is necessary to confirm the installation state of each floor panel 51 one by one. Therefore, the installation work of the floor panel 51 was troublesome, and the workability was poor.

[0006] The present invention has been made in view of such circumstances, and an object of the present invention is to provide a floor panel capable of improving workability.

[0007]

According to the first aspect of the present invention, there is provided a floor provided between a frame of a wooden house, and a heat insulating material and a joist are integrally formed. In the panel, one end of the joist is made to protrude outside the heat insulating material forming region, and the other end is kept inside the heat insulating material forming region.

According to the second aspect of the present invention, in the floor panel according to the first aspect, the amount of one end of the joist protruding from the heat insulating material forming area and the other end of the joist is formed in the heat insulating material forming area. It is the gist that the amount of withdrawal is the same.

According to the third aspect of the present invention, in the floor panel according to the first or second aspect, the amount by which one end of the joist projects and the amount by which the other end of the joist retracts are 10 mm. The gist is that the distance is set within a range of about 50 mm.

Hereinafter, the "action" of the present invention will be described. According to the first aspect of the invention, one end of the joist is projected outside the heat insulating material forming region, and the other end is held inside the heat insulating material forming region. For this reason,
When arranging a plurality of floor panels between the shaft sets, the protruding ends of the joists in a predetermined floor panel can be fitted to the other end sides of the joists in other floor panels. Therefore, each floor panel can be accurately and easily installed at a predetermined position, and the workability of the floor panel can be improved.

According to the second aspect of the present invention, the amount by which one end of the joist protrudes from the heat insulating material forming region and the amount by which the other end of the joist is retracted into the heat insulating material forming region are set to be the same. I have. For this reason, when the protruding end of the joist of a predetermined floor panel is securely fitted to the other end of the joist of another floor panel, it is possible to prevent a gap from being left between the floor panels. it can.

According to the third aspect of the invention, the amount by which one end of the joist protrudes and the amount by which the other end of the joist is retracted are set in the range of 10 mm to 50 mm.
For this reason, the protruding end of the joist of the predetermined floor panel can be securely fitted to the other end of the joist of another floor panel. Therefore, the workability of the floor panel can be reliably improved.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to FIGS. As shown in FIGS. 1 and 2, the floor panel 11 is a plate-like object having a substantially square shape in plan view. The floor panel 11 is composed of three joists 12 and one heat insulating material 13. Each joist 12 and the heat insulating material 13 are integrally formed.

Each joist 12 is a prism having a rectangular cross section, and is formed of wood. The length of each joist 12 is set to a predetermined length L1, as shown in FIG. This predetermined length L1 is set to 1000 mm or less.

The heat insulating material 13 is made of a foam material having a heat insulating function. The heat insulating material 13 has a substantially square shape in a plan view, and as shown in FIG.
Is set to be equal to the length L1. That is,
The length L1 and the length L2 have a 1: 1 relationship.
In this embodiment, the length L1 of the joist 12 and the length L2 of one side of the heat insulating material 13 are set to 910 mm. For this reason, the floor panel 11 is a plate-like object having a square shape with one side of 910 mm. Further, as shown in FIG. 3, the thickness T of the floor panel 11 is set to 70 mm.

On the upper surface of the heat insulating material 13, three parallel grooves 14a to 14c are provided at predetermined intervals. Each of the joists 12 has a corresponding one of the grooves 14a to 14a.
4c. For this reason, each joist 1
2 are arranged in parallel. FIG.
As shown in FIG. 4, the joists 12 are joined such that both side surfaces 12 a serving as short sides serve as joining surfaces with the heat insulating material 13. That is, the long side of the joist 12 and the heat insulating material 13
Are parallel to the front and back.

By the way, as shown in FIG.
Is provided at a position separated from the one side end 13a of the heat insulating material 13 by a predetermined distance W1. The groove 14b is provided at a position separated from the other side end 13b of the heat insulating material 13 by a predetermined distance W2. Each groove 14c is
a, 14b are provided at positions separated by a predetermined distance W3. For this reason, both side surfaces of the floor panel 11 are constituted by the heat insulating material 13. The relationship between the distance W1 and the distance W2 is W1 <W2. That is,
The width of the heat insulating material 13 forming one side surface of the floor panel 11 is smaller than the width of the heat insulating material 13 forming the other side surface.
The ratio of the lengths of these distances W1 and W2 is 1: 2.5 to 1:
9 is set. In the present embodiment, the predetermined distance W1 is set to 28 mm, the predetermined distance W2 is set to 221 mm, and the predetermined distance W3 is set to 248 mm.
Therefore, the ratio of the lengths of the distances W1 and W2 is set to about 1: 8.86.

Each joist 12 is joined to the heat insulating material 13 with one end 12b protruding by a predetermined amount C1 from a region where the heat insulating material 13 is formed, that is, the grooves 14a to 14c. This predetermined amount C1 is set within a range of 0.5 to 50 mm. The length L1 of the joist 12 is
Is set equal to the length L2 of one side of
2 has a predetermined amount C within the area where the heat insulating material 13 is formed.
It is in a state of being retracted by one. Thus, a recess 14d is provided on the other end 12c side of the joist 12 in each of the grooves 14a to 14c. In the present embodiment, the predetermined amount C1 is set to 1.0 mm.

By the way, as shown in FIGS. 1, 3 and 4, both sides 12a of each joist 12 have grooves 15 respectively.
Is provided. These grooves 15 extend along the longitudinal direction of each joist 12 and over the entire length of the joist 12. The groove 15 has a concave shape, and its depth is set to a predetermined depth h1, as shown in FIG. And FIG.
As shown in the figure, the distance L3 between the bottom surfaces 15a of the opposed grooves 15 is set to be equal to the thickness h2 of the joist 12. In other words, the depth h1 of the groove 15 shown in FIG.
Is set to a depth at which the distance L3 between the bottom surfaces 15a of the grooves 15 and the thickness h2 of the joist 12 are exactly equal. Therefore, in the joist 12, the cross-sectional shape (shape of the portion shown by oblique lines in the figure) of the portion excluding both side portions of the groove portion 15 is substantially square. On the other hand, on the inner side surfaces 16 of the concave portions 14a to 14c joined to the both side surfaces 12a of the joist 12, projections 17 corresponding to the groove portions 15 are provided. The joist 12 and the heat insulating material 13 are joined in a state where the protrusion 17 is fitted in the groove 15. In this embodiment, the depth h1 of the groove 15 is 5.0.
mm, and the distance L3 between the bottom surfaces 15a of the grooves 15 is set to 45 mm.

Further, as shown in FIG.
The depth h3 of ~ 14c is greater than the thickness h2 of the joist 12,
It is set to be about 0.5 to 2.0 mm deeper.
For this reason, in the joint state of the joist 12 and the heat insulating material 13, the upper surface of the heat insulating material 13 is more than the upper surface of the joist 12 by 0.5.
About 2.0 mm higher. In the present embodiment, the thickness h2 of the joist 12 is set to 45 mm and the groove 1
The depth h3 of 4a to 14c is set to 46 mm. Therefore, the upper surface of the heat insulating material 13 is 1.
It is about 0 mm higher.

As shown in FIG. 5, steps 21 are provided below both ends of the heat insulating material 13, respectively. These steps 21 are provided on the heat insulating material 13 over the entire length of a side orthogonal to the grooves 14a to 14c. By providing these steps 21, a parallel surface 21a parallel to the upper and lower surfaces of the heat insulating material 13 and a vertical surface 21b orthogonal to the parallel surface 21a are formed at both ends of the heat insulating material 13. As shown in FIG. 5, in this embodiment, the width W4 of the parallel surface 21a is set to 46 mm, and the width W5 of the vertical surface 21b is set to 25 mm.

The lower edge of each step 21, that is, the corner formed by the heat insulating material 13 and the vertical surface 21b is chamfered.
Thereby, an inclined portion 22 is provided at the lower end edge.
Therefore, as shown in FIG. 5, these inclined portions 22 have a tapered shape.

In this embodiment, a polystyrene foam is used as the material of the heat insulating material 13. The reason for using polystyrene foam is as follows. First, polystyrene foam can be recycled instead of being disposable when the heat insulating material 13 is disposed of by dismantling a house or the like. Secondly, polystyrene foam has fine and independent pores (discontinuous pores) inside, so that a moderate deformation is caused by pressing. The expansion ratio of the heat insulating material 13 is preferably set to 30 to 70 times.

Further, in the present embodiment, as the material of the joist 12, a core material of Hiba is used. The reason for using hiba is that it is one of the most excellent rot and ant-resistant woods. The reason why the heartwood was used without using the sapwood of Hiba is that rot resistance and ant resistance are superior to sapwood. Moreover, hiba is inexpensive compared to hinoki and the like, which are also excellent in rot resistance and ant resistance.

The floor panel 11 is produced, for example, through the following procedure. First, the core material of Hiba is cut to form a square material that becomes the joist 12. Then, the square timber is further cut to form the joist 12.

Next, each joist 1 is placed at a predetermined position of a molding die having a concave portion corresponding to the shape of the heat insulating material 13 to be formed.
2 is arranged. Then, after injecting the starting material and polystyrene into the molding die, they are heated to foam them. After they are sufficiently hardened by cooling, the heat insulating material 13 is removed from the molding die. Then, the floor panel 11 in which the joists 12 and the heat insulating material 13 are joined is completed. Therefore, the floor panel 11 is formed by integrally molding each joist 12 and the heat insulating material 13. For this reason,
Each joist 12 and the heat insulating material 13 are joined without requiring an adhesive.

Next, a method for constructing the floor panel 11 of the present embodiment will be described. As shown in FIG. 6, a plurality of floor panels 11 are fitted in a space 33 surrounded by a shaft set consisting of a base 31 and a large-scale pull 32, and the floor panels 11 are arranged neatly. Specifically, as shown in FIG.
Each of the step portions 21 is brought into contact with the base 31 or the large pull 32. At this time, since the inclined part 22 is provided at the lower end edge of each step part 21 in the heat insulating material 13, each step part 21 is guided by these inclined parts 22 and Abuts the bargain 32. Therefore, floor panel 1
1 is smoothly fitted into the space 33.

When fitting the floor panel 11,
The one end 12b of the joist 12 protruding from the heat insulating material 13 is
Is fitted into the corresponding recess 14d of the floor panel 11 adjacent in the direction indicated by the arrow P1.

In this way, each floor panel 11 is placed in the predetermined space 33.
When all of the floor panels 11 are fitted into each other, the floor panels 11 adjacent to each other in the direction indicated by the arrow P2 in FIG. Subsequently, as shown in FIGS. 8 and 9, a surface material 36 including a base material 34 and a finishing material 35 is laid on the surface of each floor panel 11. Here, since the upper surface of the heat insulating material 13 is set higher than the upper surface of the joist 12, FIG.
As shown in (2), the heat insulating material 13 and the surface material 36 are securely adhered to each other.

Then, the joist 12 is inserted through the surface material 36.
By hitting a nail (not shown) at the specified location
The surface material 36 is fixed to the floor panel 11. At this time, the heat insulating material 13 is deformed by the nail attachment force of the nail, and the gap between the joist 12 and the base material 34 is filled. That is, the surface layer material 36
The floor panel 11 is in close contact with the whole.

Therefore, according to the present embodiment, the following effects can be obtained. (1) One end 12b of each joist 12 is a predetermined amount C from the formation region of the heat insulating material 13, that is, one end of the grooves 14a to 14c.
It is joined to the heat insulating material 13 in a state protruding by one. The length L1 of the joist 12 is the length L of one side of the heat insulating material 13.
2 so that the other end 12c of the joist 12
Is in a state of being retracted by a predetermined amount C1 into the region where the heat insulating material 13 is formed. Thus, each of the grooves 14a to 14
On the other end 12c side of the joist 12 in c, a recess 14d is provided. Therefore, when the floor panel 11 is constructed, one end 12b of each joist 12 can be fitted into each of the recesses 14d of the adjacent floor panel 11 already installed. Therefore, each floor panel 11 is
Can be accurately and easily installed at a predetermined position.
Therefore, the workability of the floor panel 11 can be improved.

(2) The length L1 of the joist 12 and the length L2 of one side of the heat insulating material 13 are set to be equal. Therefore, the amount of protrusion of one end 12b protruding from the heat insulating material forming area and the other end 12b retracted into the heat insulating material forming area are determined.
The retraction amount of c is the same amount C1. For this reason,
Connect one end 12b of each joist 12 to each recess 1 of the other floor panel 11.
4d, the two floor panels 11 on the fitted side
There is no gap between them. Therefore, a decrease in the heat insulating effect can be prevented.

(3) The amount of protrusion of the one end 12b of the joist 12 and the amount of retraction C1 of the other end 12c of the joist 12 are 20 mm.
Is set to For this reason, one end 12b of each joist 12 in the predetermined floor panel 11 can be securely fitted to each recess 14d of another floor panel 11. Therefore,
The workability of the floor panel 11 can be reliably improved.

(4) When a plurality of floor panels 11 are installed in the space 33, the adjacent floor panels 11 are in a state where one end 12b of each joist 12 and each recess 14d are fitted. Therefore, the floor panels 11 are connected to each other. Therefore, the strength of the floor panel 11 after construction can be increased.

The embodiment of the present invention may be modified as follows. -In the said embodiment, one end 12b of all the joist 12 protrudes from the formation area of the heat insulating material 13. However, as shown in FIG. 10A, only one end 12 b of the joist 12 located on both sides of the floor panel 11 may protrude from the region where the heat insulating material 13 is formed. Also, as shown in FIG. 10B, one end 1 of a joist 12 located in the middle of the floor panel 11
Only 2b may be projected from the formation region. In short, among the plurality of joists 12 used for the floor panel 11,
At least one optionally selected joist 12
3 may be projected from the formation region. Even in this case, the floor panel 11 can be accurately and easily installed at a predetermined position in the space 33.

In the above embodiment, the length L of the joist 12
1 and the length L2 of one side of the heat insulating material 13 are set to the same length. Therefore, the protrusion amount of the one end 12b of the joist 12 and the protrusion amount of the other end 12c of the same joist 12 are equal to each other by the amount C1.
It has become. However, as shown in FIG. 10C, the length L1 of the joist 12 may be set shorter than the length L2 of one side of the heat insulating material 13. That is, one end 12b of the joist 12
The protrusion amount C2 of the other end 12c of the joist 12 may be set to be larger than the protrusion amount C1 of the same. Even in this case, when the floor panels 11 are constructed, it is possible to prevent a gap from being left between the adjacent floor panels 11.

As shown in FIG. 10D, each joist 1
On both sides of one end 12b of the second 2, tapered portions 41 tapering toward the tip may be provided. In this way, the joist 1
2 can be easily fitted into the corresponding recess 14d.

As shown in FIG. 10 (e), each joist 1
On both sides of one end 12b of the second 2, tapered portions 42 tapering downward may be provided. In this way, the joist 1
2 can be easily fitted into the corresponding recess 14d.

In the above embodiment, the amount of protrusion of one end 12b of each joist 12 and the amount of retraction C1 of the other end 12c of each joist 12 are set to 1.0 mm. However, if the protrusion amount and the retraction amount C1 are within the range of 0.5 to 50 mm, the workability of the floor panel 11 can be reliably improved even if the protrusion amount is changed to a protrusion amount other than 1.0 mm. .

By the way, if the amount of protrusion and retraction C1 is large, the strength of the floor panel 11 tends to decrease, so the amount of protrusion and retraction C1 is set within the range of 1.0 to 30 mm. Is more desirable.

In the above embodiment, polystyrene foam is used as the material of the heat insulating material 13. However, the material of the heat insulating material 13 is not limited to polystyrene foam, but may be phenol resin, silicone resin, urea resin,
Rigid urethane foam, polyolefin or the like may be used. These may be used in any combination.

In the above embodiment, the upper surface of the heat insulating material 13 is set at a position higher than the upper surface of the joist 12. However, the present invention is not limited to this, and the upper surface of the heat insulating material 13 and the upper surface of the joist 12 may be set to be at the same position.

The length of one side of the floor panel 11 is 100
The distance is not limited to 0 mm, and may be set to 1000 mm or more. In the above embodiment, as shown in FIG.
The floor panel 11 is fitted into the space 33 in a state in which the floor panel 11 is in contact with the base 31 or the pulling bar 32. However, in the case where a joist is provided on the side surface of the base 31 or the ebb 32, the floor panel 11 may be fitted into the space 33 in a state where the step portion 21 is in contact with the joist.

The material of each joist 12 is not limited to the heartwood of Hiba, but may be a sapwood of Hiba. Instead of hiba, one tree species selected from hinoki, hinoki, hinoki, koyamaki, zelkova, cedar, hinoki cypress, and larch may be used as the material for each joist 12. Even with such a change, rot resistance and ant resistance can be improved. The joists 12 formed from these tree species may be used in any combination.

In the above embodiment, the floor panel 11 is formed by integrally molding each joist 12 and the heat insulating material 13. However, the present invention is not limited thereto, and the floor panel 11 may be formed by separately forming the joists 12 and the heat insulating material 13 and then bonding them.

Next, in addition to the technical ideas described in the claims, the technical ideas grasped by the above-described embodiment will be listed below. (1) The floor panel according to any one of claims 1 to 3, wherein a plurality of the joists are provided, one end of all the joists protrudes from the heat insulating material forming region, and the other end of all the joists is insulated. Being retracted from the material forming area.

(2) The floor panel according to any one of claims 1 to 3, wherein a plurality of the joists are provided, and at least one end of the joist is arbitrarily selected and a heat insulating material forming region. And the other end is retracted into the heat insulating material forming area.

(3) In the floor panel according to any one of the first to third aspects and the technical ideas (1) and (2), one end of a joist protruding from the heat insulating material forming region is provided with one end of the joist. A tapered portion that becomes thinner toward the tip is provided.

(4) Claims 1 to 3, Technical idea (1)
In the floor panel according to any one of (1) to (3), one end of a joist protruding from the heat insulating material forming region is provided with a tapered portion tapering downward.

According to the inventions described in the technical ideas (3) and (4), the protruding end of the joist of the predetermined floor panel is easily fitted to the other end of the joist of another floor panel. Can be.

(5) The floor panel according to any one of (1) to (4), wherein the joist is made of a cypress tree species. According to the invention described in the technical concept (3), the rot resistance and the termite resistance of the joist can be maintained high.

(6) Claims 1 to 3, Technical idea (1)
In the floor panel according to any one of (1) to (5), the heat insulating material is made of a foam material. (7) The floor panel according to any one of claims 1 to 3, and technical ideas (1) to (6), wherein the heat insulating material is:
Be composed of polystyrene foam. According to the invention described in the technical concept (7), the heat insulating material does not need to be disposable and can be recycled.

[0053]

As described above in detail, according to the first aspect of the present invention, a plurality of floor panels can be accurately and easily installed at predetermined positions between the frame assemblies, thereby improving workability. be able to.

According to the second aspect of the present invention, when the protruding end of the joist of a predetermined floor panel is securely fitted to the other end of the joist of another floor panel, the floor joist is located between the floor panels. It is possible to prevent a gap from being left.

According to the third aspect of the present invention, the protruding end of the joist of the predetermined floor panel can be securely fitted to the other end of the joist of another floor panel, and the workability can be ensured. Can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a floor panel of the present invention.

FIG. 2 is a plan view of the floor panel of the embodiment.

FIG. 3 is a front view of the floor panel of the embodiment.

FIG. 4 is an enlarged plan view showing a part of the floor panel of the embodiment.

FIG. 5 is a side view of the floor panel of the embodiment.

FIG. 6 is a perspective view showing a construction mode of the floor panel of the embodiment.

FIG. 7 is a plan view showing a construction mode of the floor panel of the embodiment.

8 is a side view as seen from the direction of arrow A in FIG. 7;

FIG. 9 is a sectional view taken along line BB of FIG. 7;

10 (a) to 10 (e) are plan views showing another embodiment of the floor panel of the present invention.

FIG. 11 is a perspective view showing a conventional floor panel.

FIG. 12 is a schematic plan view showing an installation mode of a conventional floor panel.

[Explanation of symbols]

11 ... floor panel, 12 ... joist, 12b ... one end of joist, 1
2c: the other end of the joist, 13: heat insulating material, 13a, 13b: side end of the heat insulating material, 14a to 14c: groove, 14d: recess, 1
5 ... groove, 21 ... step, 22 ... inclined part, 31 ... base, 3
2 ... Large, 33 ... Space, 34 ... Base material, 35 ... Finishing material, 36 ... Surface material.

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Tatsuya Abe 5-1-1, Nitta-cho, Takahama-shi, Aichi F-term (reference) in Ibiden Co., Ltd. Kinuura Plant 2E001 DD01 EA09 FA13 FA68 GA12 GA82 HD09 KA07 LA07

Claims (3)

[Claims] 1. A floor panel provided between a frame of a wooden house and integrally formed with a heat insulating material and a joist, wherein one end of the joist projects outside a heat insulating material forming region, and the other end is formed. A floor panel fixed to the inside of a heat insulating material forming area. 2. The amount by which one end of the joist protrudes from the heat insulating material forming area is equal to the amount by which the other end of the joist is retracted into the heat insulating material forming area. Item 2. The floor panel according to Item 1. 3. The amount by which one end of the joist protrudes and the amount by which the other end of the joist is retracted are 10 mm to 50 mm.
The floor panel according to claim 1 or 2, wherein the distance is set within a range of mm.