JP2001173214A - Wood floor material and its manufacturing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wood floor material free from inverse-arched warp, stable in dimension, familiar with a floor bed and superior in workability and its manufacturing method. SOLUTION: The wood floor material comprises a plurality of grooves formed in the reverse side of a wood floor material body, an elastic adhesive filled into the grooves, and a cushion material pasted to the reverse side of the wood floor material body to cover the plurality of grooves. The manufacture of the wood floor material comprises machining the plurality of grooves in the reverse side of the wood floor material body placed on a conveyor with a cutter, filling the elastic adhesive in the grooves with a coater or in a soaking method, and drying and hardening the same.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wooden flooring material which is familiar with flooring materials and has good workability, and a method for producing the same.

[0002]

2. Description of the Related Art FIGS. 7 and 8 show a conventional wooden flooring material A. FIG. A plurality of saw-cut grooves 3 are formed on the back surface 2 of a wooden flooring body 1 made of a rectangular plywood, and a urethane resin, a nonwoven fabric, and a vinyl chloride sheet are formed so as to cover the plurality of grooves 3. And a cushion material 6 such as a polyethylene sheet or the like are stuck.

The joints of the male floor portion 7a and the female bottom portion 7b of the wooden floor material A are brought into contact with each other, and the wooden floor material main body 1 is fixed to the floor base material with an adhesive or nailing.

At this time, when the tensile strength of the cushion material 6 covering the plurality of grooves 3 is low, the grooves 3 become easy to move, and a gap S is formed between the abutment joints with the male part 7a and the female part 7b. And valley warpage is likely to occur. Therefore, a gap or a real part is likely to be pushed up at a joint contact part.

[0005]

When the tensile strength of the cushion covering the plurality of grooves is low, the kerfs of the wooden flooring material having the above structure are easily moved, and the male and female real parts are not easily moved. Therefore, there is a problem that a gap is apt to be generated between the abutting joints and a valley warpage is easily generated.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and to prevent valley warpage of a wooden flooring material, stabilize the dimensions of the flooring material, and provide good workability with good compatibility with the floor substrate. To provide wood flooring.

[0007]

According to the first aspect of the present invention, there is provided a wooden flooring material in which a plurality of grooves are provided on the back side of the wooden flooring body, and the grooves are filled with an elastic adhesive. Wooden flooring consisting of.

[0008] Therefore, by filling a plurality of grooves formed on the back surface side of the wooden flooring material body with an elastic adhesive, valley warpage of the adhesive can be prevented, and familiarity with the floor base material is improved. The workability is improved.

A wooden flooring material according to a second aspect of the present invention is obtained by attaching a cushion material to a back surface of a wooden flooring body so as to cover a plurality of grooves.

Therefore, the valley warpage can be further prevented by the synergistic effect of the plurality of grooves and the cushioning material, and the fitting with the floor base material is improved, so that the workability is improved.

The wooden flooring material according to claim 3 of the present invention is a plywood, a particle board, an insulation board,
Either one of the veneer laminates or a composite material.

Therefore, since the groove is formed on the back surface side of the wooden floor material, the warp of the wooden material can be reduced due to the stress difference between the front and back surfaces, and the adaptability to the floor base material is improved.

According to the fourth aspect of the present invention, the plurality of grooves are formed in a rectangular shape or an inverted V-shape on the back side of the main body of the wooden floor material, so that the wooden floor material can be easily adapted to the floor base material. .

According to a fifth aspect of the present invention, in the wooden flooring material, the elastic adhesive filling the groove of the wooden flooring body is a thermosetting urethane resin. Therefore, after the adhesive made of the thermosetting urethane resin is cured, the groove has an elasticity and the opening action of the groove is smoothly performed. Further, since the water resistance is also improved, it is difficult to warp.

In the wooden flooring material according to the sixth aspect of the present invention, since the cushioning material to be attached so as to cover the groove on the back side of the wooden flooring body is made of rubber or foamed resin, floor impact is applied. The sound is reduced and it becomes easier to mix with the floor substrate.

According to a seventh aspect of the present invention, there is provided a method for manufacturing a wooden flooring material, wherein a plurality of grooves are machined on the back side of a wooden flooring material body placed on a conveyor with a cutter to provide elasticity to the grooves. The adhesive is filled by a coating machine or a dipping method, and dried and cured to produce a wooden flooring material.

Therefore, it is possible to continuously process the groove on the back side of the wooden floor material body with a cutter, and since the groove is filled with an adhesive having elasticity by a coating machine or a dipping method, the groove is reliably filled with the adhesive. Dimensional stability can be achieved in a simple manner.

According to a eighth aspect of the present invention, there is provided a method for producing a wooden flooring material, wherein the adhesive coating machine having elasticity is a roll coater with a reverse roll.

Therefore, the reverse roll enables uniform application to the transfer roll, and the groove can be reliably filled with the adhesive.

[0020] The method for producing a wooden flooring material according to claim 9 of the present invention is characterized in that the dipping method of the elastic adhesive is dipping.

Therefore, it is possible to reliably fill the groove while absorbing the adhesive material stably.

[0022]

1 to 3 show an embodiment corresponding to the first to sixth aspects of the present invention. Woody flooring materials A and B of the embodiment are shown below. A plurality of grooves 3 are provided on the back surface 2 of the wooden flooring body 1, and the grooves 3 are filled with an adhesive 4 having elasticity. FIG. 4 shows a wooden flooring material C, which corresponds to claim 2, and is formed by sticking a cushion material 5 so as to cover a plurality of grooves 3 on the back side 2 of the wooden flooring body 1. Things. The above-mentioned wooden flooring material A,
B, C wooden flooring body 1 is a plywood, particle board, insulation board having a thickness of 2 to 15 mm,
Made of veneer laminates. Alternatively, a laminated plate into which resin is injected may be used. A plurality of grooves 3 are formed in a rectangular shape and an inverted V-shape by a cutter on the back surface side 2 of the wooden floor material main body 1. The width of the groove 3 is suitably 1 to 7 mm. further,
The elastic adhesive 4 filling the groove 3 of the wooden flooring body 1 is a thermosetting urethane resin. The thermosetting urethane resin has high elasticity and the groove 3
Since it is easy to densely fill, it can respond to dimensional changes.

The cushioning material 5 to be attached so as to cover the groove 3 on the back side 2 of the wooden flooring material body 1 such as the wooden flooring materials A and B is made of rubber or foamed resin.

Therefore, even when the plurality of grooves 3 of the wooden flooring materials A and B are expanded by the cushion material 5 covering the grooves 3, the tensile strength with the cushion material 5 is balanced and the dimensional change is small. Become. Therefore, valley warpage is less likely to occur, and a gap is less likely to occur between the abutment joints with the male real part 7a and the female real part 7b. For this reason, it is difficult for the gap or the real part to be pushed up at the joint contact portion.

FIGS. 5 and 6 show an embodiment of a method for producing a wooden flooring material according to the seventh to ninth aspects of the present invention.

A plurality of grooves 3 are cut on the back surface 2 of the wooden flooring main body 1 placed on the conveyor 9 by a plurality of cutters 8 to form semi-penetrating grooves 3. After the groove 3 is formed, the groove 3 is filled while the adhesive 4 having elasticity is uniformly applied by the reverse roll 10 using a coating machine using a roll coater 11 with a reverse roll 10.
Thereafter, the elastic adhesive 4 is heated and pressed by a press machine including an upper mold 14 and a lower mold 15 and dried and hardened to produce a wooden floor material.

Therefore, the reverse roll enables uniform application to the transfer roll, and the groove 3 can be reliably filled with the adhesive 4 stably. The method for producing a wooden flooring material according to the ninth aspect of the present invention is characterized in that the dipping method of the adhesive 4 such as a thermosetting urethane resin having elasticity is dipping.

Therefore, the groove can be stably filled with the adhesive.

[0029]

As described above, according to the first aspect of the present invention, a plurality of grooves are provided on the back side of the wooden flooring body.
Since the grooves are filled with an elastic adhesive, the valley warping of the adhesive can be prevented by filling the plurality of grooves formed on the back surface side of the wooden flooring body with the elastic adhesive. At the same time, familiarity with the flooring material is improved and workability is improved.

The wooden flooring material according to the second aspect of the present invention is obtained by attaching a cushion material to the back surface side of the wooden flooring body so as to cover a plurality of grooves. Due to the synergistic effect of the groove and the cushioning material, valley warpage can be further prevented, and the familiarity with the floor base material is improved, thereby improving workability.

According to the third aspect of the present invention, the wooden flooring material is a plywood, a particle board, an insulation board,
Although it is a veneer laminate or the like, since a groove is formed on the back surface side of the wooden floor material, the warp of the wooden material can be reduced due to the difference in stress between the front and back surfaces, and the adaptability to the floor base material is improved.

According to the fourth aspect of the present invention, the plurality of grooves are formed in a rectangular shape or an inverted V-shape on the back side of the main body of the wooden floor material, so that the wooden floor material can be easily adapted to the floor base material. .

According to a fifth aspect of the present invention, the wooden flooring material has elasticity after the adhesive which is a thermosetting urethane resin is used as the elastic adhesive filling the groove of the wooden flooring body. The opening action of the groove is performed smoothly. Further, since the water resistance is also improved, it is difficult to warp.

In the wooden flooring material according to the sixth aspect of the present invention, the floor impact sound is small because the cushioning material to be adhered so as to cover the groove on the back side of the wooden flooring body is made of rubber or foamed resin. It becomes easier to be used with flooring materials.

According to a seventh aspect of the present invention, there is provided a method of manufacturing a wooden flooring material, wherein a plurality of grooves are machined on a back side of a wooden flooring material body placed on a conveyor by a cutter, and the grooves are provided with elasticity. Filling the adhesive with a coating machine or dipping method, and by drying and hardening, it is possible to continuously process the groove on the back side of the wooden flooring body with a cutter, and apply an adhesive having elasticity to the groove with a coating machine or dipping method. Since the groove is filled with the adhesive, the dimensional stability can be realized by a simple method.

In the method for producing a wooden flooring material according to the eighth aspect of the present invention, since a coating machine for the adhesive having elasticity uses a roll coater with a reverse roll, it is possible to uniformly coat the transfer roll with the reverse roll. Thus, the adhesive can be reliably filled in the groove portion stably.

In the method for producing a wooden flooring material according to the ninth aspect of the present invention, since the dipping method of the adhesive having elasticity is dipping, the adhesive can be reliably filled in the groove while being stably absorbed by the base material. .

[Brief description of the drawings]

FIG. 1 is a perspective view showing an entire embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of a main part showing a bonded state of a real part in the embodiment of FIG. 1 of the present invention.

FIG. 3 is a longitudinal sectional view of a wooden floor material according to another embodiment of the present invention.

FIG. 4 is a longitudinal sectional view of a wooden flooring material without a cushioning material according to a different embodiment of the present invention.

FIG. 5 is a flowchart showing an outline of a production process of a wooden flooring material according to the present invention by a coating method.

FIG. 6 is a flowchart showing an outline of a manufacturing process of the wood-based flooring material according to the present invention by a dipping method.

FIG. 7 is a perspective view showing the entirety of a conventional wooden flooring material.

FIG. 8 is a longitudinal sectional view of a main part showing a bonding state of a real part in FIG. 7 of the related art.

[Explanation of symbols]

 Reference Signs List A wooden flooring B wooden flooring C wooden flooring 1 wooden flooring main body 2 back side 3 groove 4 adhesive 5 cushioning material 7a male part 7b female part

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2B250 AA05 BA04 BA05 BA06 CA11 DA04 EA01 EA11 EA18 FA09 FA13 FA21 FA28 FA31 FA37 FA41 GA03 GA05 HA01

Claims (9)

[Claims] 1. A wooden flooring material comprising a plurality of grooves provided on the back side of a wooden flooring body, and the grooves are filled with an elastic adhesive. 2. The wooden flooring material according to claim 1, wherein a cushioning material is attached to the back surface side of the wooden flooring material body so as to cover a plurality of grooves. 3. The wooden floor material body is one of a plywood, a particle board, an insulation board, a veneer laminate, or a composite material.
Or the wooden flooring material according to claim 2. 4. The wooden flooring according to claim 1, wherein the plurality of grooves are rectangular or inverted V-shaped on the back side of the wooden flooring main body. 5. The wooden flooring material according to claim 1, wherein the elastic adhesive filling the groove of the wooden flooring material main body is a thermosetting urethane resin. 6. The wooden flooring material according to claim 2, wherein the cushioning material to be attached so as to cover the groove on the back side of the wooden flooring material body is a rubber or foamed resin. 7. A plurality of grooves are machined on the back side of the wooden flooring material body placed on the conveyor with a cutter, and the grooves are filled with an elastic adhesive by a coating machine or a dipping method,
A method for producing a wooden floor material, comprising drying and curing to produce a wooden floor material. 8. The method for producing a wooden flooring material according to claim 7, wherein the coating machine for the adhesive having elasticity is a roll coater with a reverse roll. 9. The method according to claim 7, wherein the dipping method of the adhesive having elasticity is dipping.