JP2008240245A - Flooring material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide the technology for developing a flooring material being suitable for the use in a floor heating system and the demand for making over a floor and having very small thickness of board such as 12 mm. <P>SOLUTION: This flooring material 1 is one solid long board member for flooring prepared by cutting and splitting raw lumber like a log. The flooring technical skill by use of a tongue and groove joint for forming a tongue 40 including a projecting tongue projection 41 on either of side faces 4 of the long board member and a groove 45 including a small hole 46 on the other side face opposing to it is applied on this flooring material 1. Concerning the tongue 40, dimension of upper step cutting toward the direction of board width in an upper cut-in part 42 is set larger than dimension of lower step cutting in a lower cut-in part 43. As for the groove 45, dimension of upper step projection in an upper projecting part 47 is set to be larger than dimension of lower step projection in a lower projecting part by corresponding to a shape of the tongue. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a flooring material that is a flooring member, and particularly relates to an optimization technique for processing into a thin plate shape suitable for practical construction.

For example, the value of natural solid wood is evaluated as a flooring material for buildings, and many materials are provided.
The situation related to this floor construction is that the installation of floor heating has become widespread, and there is more demand for renovation of existing houses than newly built houses. Various problems to be solved have arisen.
That is, when the floor heating is provided, the floor surface is repeatedly heated and allowed to cool by the heating material. For this reason, in the case of a natural solid material, warping or the like tends to occur as compared with plywood, and therefore careful processing that is not limited to simple plate processing is required to avoid this.
Incidentally, the present applicant has already established a technique capable of providing a flooring material that can withstand practical use in this respect, and has applied for a patent (Patent Document 1).

On the other hand, as a technical problem caused by an increase in renovation demand, the thickness of a conventional plywood flooring material is 12 mm, and therefore, this thickness dimension is required for the flooring material to be replaced. Such a thin plate makes it extremely difficult to avoid the occurrence of the warp and the crack caused by the nail during construction as a solid material, and a solid plate material having a thickness of 12 mm is actually provided to the market. Absent.
For this reason, solid flooring materials with a plate thickness of 15 mm are used in a balanced manner while matching the dimensions of many construction sites due to slight rises in the floor surface to meet the requirements for renovation that introduces floor heating. This is the current situation.
Japanese Patent Application No. 2005-287215

  The present invention has been made in view of such a background, and has developed a flooring material that employs a floor heating system and enables a very thin set dimension of 12 mm so as to be suitable for renovation demand. This is a technical issue.

  The flooring material according to claim 1 is a single solid plate for flooring that is split from a log-shaped log, and a convex male protrusion is formed on one side of the long plate. A real processing is performed in which a male fruit is formed, and a female fruit including a concave small hole is formed on the opposite surface, and the male fruit has a lower excavation width in the plate width direction in the upper excavation part. The female body is characterized in that the overhang width in the upper overhang portion is set larger than the overhang width in the lower overhang portion corresponding to the male body shape. is there.

  The flooring material according to a second aspect is characterized in that, in addition to the requirement of the first aspect, a plate thickness dimension of the long plate material is 12 mm ± 1 mm.

  The flooring material according to claim 3 has, in addition to the requirements of claim 1 or 2, the upper digging portion, the male main body, and the lower digging portion of the male seed in the thickness direction of the upper thickness, middle thickness, and lower thickness. In setting, the middle thickness is set to be larger than the others, while the female body is characterized in that the dimension is set so as to be joined with the male body almost densely.

  Further, the flooring material according to claim 4 is dried to a moisture content of about 4 to 8% after grinding, in addition to the requirements of claim 1, 2, or 3, and on the surface. Is characterized by being painted with a natural wax.

  Further, the flooring material according to claim 5 has a moisture content of 6 after the ground plate has been dried to a moisture content of 4 to 5% after grinding, in addition to the requirements of claim 1, 2, 3 or 4. It is characterized by being wax coated after being raised to ˜8%.

  Furthermore, in the flooring material according to claim 6, in addition to the requirements according to claim 1, 2, 3, 4 or 5, a warpage preventing groove is formed on the lower surface of the long plate material in the longitudinal direction of the long plate material. The warp prevention grooves are formed at intervals of 13 to 19 mm.

Further, in the flooring material according to claim 7, in addition to the requirements of claim 1, 2, 3, 4, 5 or 6, the natural material to be coated on the long plate material is beeswax wax. Beeswax wax is characterized by being coated with a mass per unit area of about 5 g / m ² or less.

The flooring material of the present invention has the following effects due to the above-described configuration.
That is, according to the flooring material of claim 1, since it has a novel structure relating to the actual part, it is possible to firmly connect and fix the solid wood flooring materials having a reduced plate thickness.

  Moreover, according to the flooring material of Claim 2, since plate | board thickness is 12 mm, after removing the existing flooring material in the case of remodeling etc., it can construct | lay without performing what is called level adjustment work.

  According to the flooring material of claim 3, since the dimensions of the male and female parts are optimum, the strength of the actual part is maintained even when the plate thickness is reduced. It is possible to avoid the occurrence of cracks and the like by fixing means such as sagging, nails, staples, etc., and it is possible to fix them reliably.

  Further, according to the flooring material of claim 4, since it is wax-coated after being dried to a moisture content of about 4 to 8%, the durability is high, and deformation such as diameter change is difficult to occur. There is little outbreak. Natural materials such as beeswax wax are applied not only to the long plate itself, but also to the surface makeup applied to this plate, so that it does not induce house sick syndrome and burns harmful substances such as dioxin even when burned. It is possible to provide a flooring material that does not occur at all and is friendly to people and the environment.

  Further, according to the flooring material of claim 5, since the long plate material is once dried to a moisture content of 4 to 5% after grinding, the conduit in the wood structure loses its function and almost no moisture is taken up. After that, it is less affected by the moisture value due to changes in the surrounding environment. Therefore, deformation, cracking, warping, pushing up and breakage of the flooring material as a product can be prevented. Also, after drying to a moisture content of 4 to 5%, the moisture content is slightly increased to 6 to 8%, so when the floor heating system is turned on (the moisture content is about 5%) and when it is turned off ( The difference in the moisture content of the flooring material, which depends on the surrounding environment such as the weather, is about 10%, for example, is reduced. Therefore, there is little difference in shrinkage and expansion due to the difference in moisture content of the flooring material when the floor heating system is turned on and when it is turned off. It does not happen. Further, by repeating the mechanical drying and water addition several times, a uniform flooring material having no unevenness in water content can be obtained.

  Furthermore, according to the flooring material of claim 6, since warpage preventing grooves are formed on the lower surface of the long plate material over the longitudinal direction of the long plate material at a relatively short pitch interval of the formation interval of 13 to 19 mm, The flooring material is unlikely to warp.

Furthermore, according to the flooring material of claim 7, the natural material to be coated on the long plate material is beeswax wax, and this beeswax wax is applied at a coating amount of about 5 g / m ² or less per unit area. Therefore, the coating amount per unit area can be sufficiently suppressed, and even if an expensive beeswax wax is used, the coating can be performed at a low cost, and a very beautiful flooring material can be obtained.

  The best mode of the present invention is specifically as described in the illustrated embodiments below.

The present invention will be described below based on the illustrated embodiments. First, the flooring material 1 of the present invention is, as an example, a solid cedar or cedar wood having a length of about 1818 mm (excluding the size of male 50), a width of about 85 mm (excluding the size of male 40), and a thickness of about 12 mm. It is a long flat plate material such as. Other sizes include a length of 1212 mm (excluding the size of the male 50), a width of about 85 mm (excluding the size of the male 40), a thickness of about 12 mm, and other thicknesses of 12 mm. It is possible to carry out with appropriate length and width dimensions.
And as one of the characteristics of the flooring material 1 which concerns on this invention, after drying to 18 to 22% of moisture content by outdoor drying, the point dried to 6 to 8% of moisture content by mechanical drying is mentioned. During the mechanical drying process, after the moisture content of the long plate material is dried to 4 to 5%, water is added several times by the air conditioner so that the moisture content becomes 6 to 8%.
Incidentally, the moisture content of the flooring material 1 of products generally distributed is usually about 15%, and the flooring material 1 according to the present invention has about half the moisture content. Since the moisture content is low and a natural wax material is applied, deformation and cracking hardly occur even under severe conditions such as floor heating, and the durability is high.

By the way, the long plate material is once dried to a moisture content of 4 to 5% after grinding, so that the function of the conduit in the wood structure is lost. This significantly reduces the uptake of moisture in the long plate material, and can maintain a relatively set moisture value even when the surrounding environment changes thereafter, thereby preventing deformation, cracking, warping, pushing-up and breakage of the flooring material. .
In addition, the water content is increased to 6-8% by adding water with an air conditioner after the mechanical drying process described above, when the floor heating system is turned on (the water content is about 5%), or when it is turned off (weather etc.) Due to the difference in the moisture content of the flooring material when the floor heating system is turned on and when the floor heating system is turned off, the difference in moisture content of the flooring material is reduced depending on the surrounding environment This is to prevent the gap between the adjacent flooring materials from being excessively opened and from being adjacent to each other by reducing the difference in size during contraction and expansion. Further, by repeating the mechanical drying and water addition several times, a uniform flooring material having no unevenness in water content can be obtained.
In the present invention, the four surfaces of the flooring material 1 are defined as an upper surface 2, a lower surface 3, a side surface 4, and a fore edge end surface 5 on the basis of the laying use state.

Next, the structure of the actual part, which is the main technical feature of the present invention, will be described.
First, the side surface 4 of the flooring material 1 is subjected to actual processing for engaging the adjacent flooring material 1 with each other. The convex male fruit 40 is provided on one side of the side surface 4, and this is applied to the other side. A recessed female seed 45 is formed to engage with the female body 45.
When this actual processing is described in detail, the male fruit 40 is provided with a male protrusion 41 at an intermediate portion in the vertical direction, and the male protrusion 41 projects above and below the male protrusion 41 so as to be dug relatively. The upper excavation part 42 and the lower excavation part 43 which become a shape are formed. On the other hand, the female fruit 45 is provided with a concave groove-shaped small hole 46 at the middle in the vertical direction, and the upper and lower ends of the female fruit 45 are shaped so as to protrude relatively by the small hole 46 being a concave groove. A protruding portion 47 and an underhanging portion 48 are formed.

With respect to these specific dimension settings, for example, when the plate thickness is 12 mm in the present embodiment, the following is possible.
First, with respect to the thickness direction dimensions of the upper trench 42, the male projection 41, and the lower trench 43 in the male part, in the example shown in FIG. 2, the upper thickness d1: middle thickness d2: lower thickness d3 is about 3: 5: 4. Specifically, when the plate thickness is 12 mm, 3 mm, 5 mm, and 4 mm are obtained. Of course, in addition to such dimension setting, for example, when the thickness of the upper stage d1: middle stage thickness d2: lower stage thickness d3 is 7: 10: 7 and the plate thickness is 12 mm, the thicknesses are 3.5 mm, 7 mm, and 3.5 mm. However, in any case, it is preferable to make the middle thickness d2 the largest. Depending on the material, the upper thickness d1: middle thickness d2: lower thickness d3 may be set to be equally distributed.
In addition, as shown in FIG. 2, for the male seed 40, as shown in FIG. 2, the upper digging width (upper digging dimension L <b> 1) of the upper digging part 42, which is the dimension from the tip of the male projection 41, is the digging width of the lower digging part 43 ( For example, when the plate thickness is 12 mm in this embodiment, the upper drilling dimension L1 may be about 5 mm and the lower drilling dimension L2 may be about 4 mm. preferable.

On the other hand, the ratio of the thickness dimension, the upper stage thickness di, the middle stage thickness dii, and the lower stage thickness diii in the female seed 45 corresponding to the male seed 40 is about 3: 5: 4. Of course, the dimensions are set so as to allow the male projection 41 to be received. Specifically, when the male body 40 has a thickness of 12 mm, and the thickness dimension shown in FIG. 2 is, the upper thickness di is less than 3 mm, the middle thickness dii is slightly over 5 mm, and the lower thickness diii is On the other hand, when the male projection 41 is closely fitted into the small hole 46 of the female seed 45, it may be the same size or larger.
Regarding the overhang width, the upper overhang dimension Li of the upper overhang portion 47 is about 5.5 mm, and the lower overhang dimension Lii of the lower overhang portion 48 is about 3.5 mm.

Similarly, the actual processing is performed on the end edge surface 5 of the flooring material 1, and a convex male fruit 50 is formed on one side, and a concave female fruit 55 is formed on the other side. Yes.
In addition, about the actual process performed on the edge edge surface 5, the same thing as the actual process on the side surface 4 described above is applied as an example, and the reference numerals corresponding to the parts are male 50, male projection 51, The upper digging portion 52, the lower digging portion 53, the female fruit 55, the small hole 56, the upper overhanging portion 57, and the lower overhanging portion 58 are used.
Further, as an example, four warpage preventing grooves 30 are formed in the lower surface 3 of the flooring material 1 in the longitudinal direction, whereby warpage deformation of the flooring material 1 mainly on the upper surface 2 side is prevented. .

The entire surface (four sides) of the flooring material 1 is coated with beeswax wax. This beeswax wax is produced by mixing unbleached bean paste containing propolis with sesame oil as described in JP-A-2000-319595. It is possible to use “unbleached beeswax” produced and sold by Kotaro Ogawa ∞ Yuriko.
As described above, since the coating uses a natural material called beeswax wax, it is gentle to people and the environment, and can promote pollution-free. Furthermore, this coating can be applied very thinly and uniformly at an application amount per unit area of about 5 g / m ² as an example, and a beautiful gloss finish can be obtained and coating can be performed at a very low cost. A specific coating method will be described in the manufacturing method of the flooring material 1 described later. Conventionally, hand coating is mainly performed by brushing or the like. In this case, the coating amount per unit area is about 15 g / m ² . It was common.
The coating is not necessarily limited to beeswax wax, and other paints such as persimmon astringent or wood wax can be substituted for natural wax materials.

  Further, as the flooring material 1 of the present invention, those having no nodes have higher market value, but those having nodes are also applicable. In the case where there is a knot, the so-called live knot is used as it is, but the so-called dead knot is also subjected to correction processing such as cutting out the part and plugging it separately using a branch material or the like.

Next, a method for producing the flooring material will be described while explaining the steps from the lumber A0 to lumbering the above-described flooring material 1 and supplying it to the market.
(1) Four-sided grinding (processing from raw wood to square wood)
First, as shown in FIG. 3, the four faces of the log-like raw wood A0 are ground down to obtain a square bar A1. Needless to say, in this cutting-off, wood cutting is performed so that the square wood A1 and the long board A (flooring material 1) can be obtained most efficiently in consideration of the deformation of the raw wood A0 such as warp and arrow height. It should be noted that taking into account the optimum wood cutting and the like is also performed at the stage of purchasing the raw wood A0. As a suitable raw wood, 50-100 year-old persimmons from the Kiso region can be raised, but inland cedar and persimmons can generally be used.

(2) Grinding (processing from square to board)
Thereafter, the square member A1 is ground into a long plate member A having an appropriate thickness and becomes a raw material of the flooring member 1.
In addition, since cocoons and cedars are generally small-diameter wood, the product wood (long plate material A) is completed by grinding into such a plate shape. That is, the wood cutting for further breaking the plate material in the longitudinal direction is hardly performed.

(3) Outdoor drying After cutting, the long plate A is dried. However, before the drying, cracks and the like are likely to occur on the end edge surface 5 during drying, so paint such as wax or lacquer is applied (later shape) The end facet coated with this paint is cut off during the processing step). Thereafter, the long plate A is dried after outdoor drying and machine drying until the water content becomes about 5%.
The outdoor drying is performed, for example, by leaving it in an outdoor atmosphere for about 3 months in a place where it is not directly exposed to rain. Here, the long plate A is dried to approximately 20%. Incidentally, the long sheet material A before being subjected to outdoor drying has a moisture content of approximately 30%.

(4) Machine drying / hydrolysis Next, the long plate A after outdoor drying is placed in a drying room with a temperature of about 65 ° C. for about 9 days to dry the moisture content to 4-5%, and with an air conditioner Humidification of the drying chamber is repeated several times so that the long plate material A has a water content of 6 to 8%, and is finally taken out in a state where the water content is watered to 6 to 8%.
As described above, since the moisture content is once dried to 4 to 5%, the conduit in the wood structure loses its function, the moisture is hardly taken up, and the moisture value is less affected by changes in the surrounding environment thereafter. Therefore, deformation, cracking, warping, push-up and breakage of the flooring material can be prevented. Also, after drying to a moisture content of 4 to 5%, the moisture content is slightly increased to 6 to 8%, so when the floor heating system is turned on (with a moisture content of about 5%) and when it is turned off ( The difference in the moisture content of the flooring material, which depends on the surrounding environment such as the weather, is about 10%, for example, is reduced. Therefore, there is little difference in shrinkage and expansion due to the difference in moisture content of the flooring material when the floor heating system is turned on and when it is turned off. It does not happen. Further, by repeating the mechanical drying and water addition several times, a uniform flooring material having no unevenness in water content can be obtained.

(5) Shape processing As shown in FIG. 4, after drying, the male plates 40 and 50 and the female fruits 45 and 55 are formed on the side surface 4 and the end edge surface 5 of the long plate A.
Specifically, using a woodworking machine such as a router, when the plate thickness is 12 mm, as shown in FIG. 2, for the male 40, the upper thickness d1: middle thickness d2: lower thickness d3 is 3 mm, 5 mm, for example. As an example, the plate thickness of this embodiment is set so as to be 4 mm, and the excavation width of the upper excavation part (upper excavation dimension L1) is larger than the excavation width of the lower excavation part 43 (lower excavation dimension L2). In the case of 12 mm, processing is performed by setting the upper digging dimension L1 to be 5 mm and the lower digging part 4 mm. Similarly, the female fruit 45 is also processed.
Further, four warpage prevention grooves 30 and the like are formed on the lower surface 3 at substantially equal intervals by a woodworking machine such as a multi-axis lathe. The warpage preventing groove 30 may be formed by forming five or six.

(6) Beeswax wax coating Thereafter, beeswax wax is applied thinly (as an example, about 5 g / m ² ) and uniformly on the surface of the long plate A. As for this coating method, the upper surface 2 and the lower surface 3 of the long plate A are coated using the coating device 10, while the side surface 4, the edge edge surface 5 and the warpage prevention groove 30 of the lower surface 3 As an example, painting is performed using a brush.

  The coating using the coating apparatus 10 on the upper surface 2 and the lower surface 3 of the long plate material A will be schematically described. For example, as shown in FIG. 5, the beeswax wax coating is applied to the surface of the long plate material A by the application device 10 that deposits the stored beeswax wax and the beeswax wax adhered to the long plate material A over the entire surface. It is performed by the wiping device 11 that expands, and both these devices are connected by a belt conveyor or the like. Here, reference numeral 10 a in the figure denotes a coating roller that is a main member of the coating apparatus 10, and reference numeral 11 a is a rotary wiping body 11 a that is a main member of the wiping apparatus 11. And the elongate board | plate material A in which the beeswax wax was apply | coated to the application | coating surface of beeswax wax is supplied to the wiping apparatus 11 with a belt conveyor etc. FIG. In the above description, it is described that the beeswax wax is wiped off by the wiping device 11 (rotary wiping body 11a). Is spread so as to spread uniformly over the entire surface to be coated.

As described above, in this embodiment, since the beeswax wax is wiped off immediately after application, the cost of painting is reduced without wasting the beeswax wax while using the expensive beeswax wax. It can be suppressed. In the case of hand-painting by brush or the like, the coating is about 15 g / m ² as an example, and when the coating device 10 and the wiping device 11 described above are used, the coating thickness is suppressed to about 1/3. It is done.

(7) Wax drying / polishing The long bead A subjected to surface coating is then dried with beeswax wax. At this time, in the present embodiment, as described above, the beeswax wax is wiped off immediately after application, so that drying can be performed in a relatively short time.
Thereafter, the painted surface of the long plate material A is polished to finish the beeswax wax with a beautiful luster, thereby obtaining the flooring material 1 as a product.

(8) Packing / Shipment As an example, the flooring material 1 with the surface decoration is shrink-packed in one set of 10 sheets or one set of 20 sheets. Here, 10 sheets 1 set or 20 sheets 1 set is, for example, when the flooring material 1 is about 90 mm in width and about 1820 mm in length, the floor for 10 square meters (one tatami mat) is stretched with 10 sheets, This is because the required number of sets of flooring material 1 relative to the flooring area (the number of tatami mats) is made easier to understand.

  As an example, as shown in FIG. 4, the flooring material 1 is packaged by packing 5 or 10 sets of the lower surfaces 3 facing each other. When the packaging is performed in a state where the sheet is cut off, it becomes easy to generate a spear. Therefore, in order to prevent this, a paper spacer S is interposed between the upper surfaces 2. In particular, the paper spacer S is preferably formed with an air layer Sa like a cross section of a corrugated cardboard so as not to obstruct respiration of the flooring material 1. Of course, the spacer S also serves as a cushion (buffer) that protects the flooring material 1 by reducing the impact applied to the flooring material 1 during conveyance.

In addition, since the spacer S interposed between the upper surfaces 2 is made of paper, it is biodegraded when opened and discarded as it is, and no harmful gas such as synthetic resin is generated even if burned, which is extremely environmentally friendly. It can be disposed of gently.
Furthermore, when packaging the flooring material 1, shrink packaging that shrinks by heat is applied, and an olefin-based film is applied to this film in consideration of the environment. In other words, unlike conventional vinyl chloride (vinyl chloride) films, olefin-based films do not contain chlorine molecules, so they do not generate dioxins during combustion and contribute to pollution-freeness. is there. In addition, it is desirable to open many holes on the surface of this film so that the breathing of the flooring material 1 is not inhibited.

(9) Installation Mode of Flooring Material When laying the flooring material 1 according to the present invention, as shown in FIGS. 6B and 6C, a hard type containing small joist M3 on the base plywood F1 etc. A hot water heating mat M for floor heating is laid, and the flooring material 1 according to the present invention is laid thereon. A member indicated by a symbol M2 is a pipe embedded in the heat generating mat M, and a symbol M1 is a mat body. Further, as an example, a heat insulating material F2 and a moisture-proof sheet F3 are laid below the base plywood F1 on which the heat generating mat M is laid.

The concrete laying aspect of the flooring material 1 will be described. Adhesive is applied to the entire upper surface of the small joists M3, and the flooring material 1 is orthogonal to the small joists M3 of the heating mat M as shown in FIG. Lay it in the direction, and fix it to the small joist M3 with fixing means 6 such as staples or nails at the male and female portions 40 and 50.
In addition, the edge edge surface 5 of the flooring material 1 is laid so that it may be located in the center of the small joist M3, and the edge edge surface 5 of the two flooring materials 1 is actually joined. Further, the flooring materials 1 arranged side by side are also actually joined with each other's male fruit 40 and female fruit 45, and the flooring material 1 is laid on the entire floor surface.
In particular, for fixing the actual part of the flooring material 1 of the present invention, as shown in an enlarged view in FIG. 1, nails, staples or the like as the fixing means 6 are driven obliquely from the back corners of the upper digging parts 42 and 52. Is. At this time, even if the thickness of the flooring material 1 is thin, the positions of the back corners of the upper digging portions 42 and 52 are deeper than the back corners of the lower digging portions 43 and 53, and In the base portion, a total thickness of 9 mm including the thickness of the male projection 41 (middle thickness dimension d2) of 5 mm and the thickness of the lower digging portion 43 (lower thickness dimension d3) of 4 mm is secured. Therefore, the occurrence of cracks and the like is reliably avoided.

(10) About the construction which introduces installation of floor heating equipment in renovation work Moreover, since the flooring material 1 of this invention is the same 12 mm board thickness as the existing plywood floor board material 101, it was touched also in background art. It is also possible to remove the existing plywood floor board material 101 at the time of reforming and to lay the flooring material 1 in the space.
Furthermore, even in the case of a floor structure that originally does not consider the floor heating function, the floor heating function can be achieved by using the electric heating sheet M10 in the form of a thin film sheet using an electric heating element and the flooring material 1 in combination. Solid wood flooring combined can be laid easily.

Specifically, laying work as shown in FIG. 7 is performed.
First, as shown in FIG. 7A, the existing plywood floor board material 101 is removed from the base plywood F1 to expose the base plywood F1. Next, as shown in FIG. 7B, a thin electrothermal sheet M10 is laid on the base plywood F1, and electrical wiring for supplying appropriate power is connected and installed. Next, as shown in FIG. 7 (c), a process of laying the flooring material 1 of the present invention so as to be continuously provided on the electric heating sheet M10 already laid is shown.

Of course, besides such a laying method using the flooring material 1 of the present invention, the base plywood F1 is removed together with the flooring, and a new base plywood F1 designed in consideration of floor heating is laid. It is also possible to install floor heating using solid flooring.
Moreover, as shown in FIG. 7, if it is a floor heating equipment which combined the flooring material 1 of this invention and the electrically heated sheet | seat M10, also in renovation, existing fittings, such as a double door type closet and a door, and a floor surface It is not necessary to perform level correction (interference avoidance construction), and floor heating equipment can be introduced at a low price.

It is a perspective view which shows the flooring material of this invention. It is a top view, a back part, and a left view. It is explanatory drawing which shows the process until it grinds and cuts a long board | plate material from a raw wood. It is explanatory drawing which shows the process until a long board | plate material is shape-processed and it coats and packs. It is explanatory drawing which shows skeleton the apparatus (a) which applies a beeswax wax on the upper surface of a long board | plate material, and the wiping apparatus (b) which spreads the applied beeswax wax on an upper surface. It is the top view which shows the installation aspect of a flooring material, and two types of sectional drawings. It is explanatory drawing which shows the construction process of the reform to which the flooring material of this invention and the electric heating sheet | seat for floor heating are applied.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Flooring material 10 Application | coating apparatus 10a Application | coating roller 11 Wiping apparatus 11a Rotating wiping body 101 (Existing) Flooring material 2 Upper surface 3 Lower surface 30 Warpage prevention groove | channel 4 Side surface 40 Male body 41 Male protrusion 42 Upper digging part 43 Lower digging part 45 Female Real 46 Small hole 47 Upper overhanging portion 48 Lower overhanging portion 5 Small-mouthed end face 50 Male 51 Male real projection 52 Upper drilling portion 53 Lower drilling portion 55 Female fruit 56 Small hole 57 Upper overhanging portion 58 Lower overhanging portion 6 Fixing means A Long plate A0 Raw wood A1 Square d1 Upper thickness d2 Middle thickness d3 Lower thickness di Upper thickness dii Middle thickness diii Lower thickness L1 Upper drilling dimension L2 Lower drilling dimension Li Upper projecting dimension Lii Lower projecting dimension M Heating mat M1 Mat body M2 Piping M3 Koneta M10 Electric heating sheet S Spacer Sa Air layer F1 Base plywood F2 Thermal insulation F3 Moisture-proof sheet

Claims (7)

  It is a single solid plate for flooring that is split from a log-shaped log, and a male fruit including a convex male protrusion is formed on the side of the long sheet material. The actual processing is performed in which a female fruit including a concave small hole is formed on the surface, and the male fruit is set to have a digging width in the plate width direction in the upper digging part larger than the digging width in the lower digging part, On the other hand, the above-mentioned female fruit is a flooring material characterized in that the overhanging width in the upper overhanging portion is set larger than the overhanging width in the underhanging portion corresponding to the male solid shape.   The flooring material according to claim 1, wherein a plate thickness dimension of the long plate material is 12 mm ± 1 mm.   In setting the upper thickness, middle thickness, and lower thickness, which are the thickness direction dimensions of the upper digging portion, the masculine main body, and the lower digging portion in the male seed, the middle thickness is set larger than the others, while the female thickness Actually, the flooring material according to claim 1 or 2, wherein the flooring material is dimensionally set so as to be joined to the male and the fruit almost densely.   The said long board | plate material is dried to the moisture content of about 4-8% after grinding, and the coating of the natural raw material wax is made | formed on the surface, The said 1, 2, or 3 characterized by the above-mentioned. Flooring material.   The said long board material is dried to the moisture content of 4-5% after grinding, and after having raised the moisture content to 6-8%, it is then wax-coated. Or the flooring material of 4.   A warpage prevention groove is formed on the lower surface of the long plate material in the longitudinal direction of the long plate material, and the formation interval of the warpage prevention groove is formed at an interval of 13 to 19 mm. Item 6. A flooring material according to 1, 2, 3, 4 or 5. The natural material to be coated on the long plate material is beeswax wax, and the beeswax wax is coated with a mass per unit area of about 5 g / m ² or less. The flooring material according to 3, 4, 5 or 6.

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