JP4151447B2 - Wood flooring - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a wooden flooring, and more particularly to a long wooden flooring constructed by jointing short flooring in the longitudinal direction.
[0002]
[Prior art]
Conventionally, long wooden flooring materials (hereinafter referred to as long flooring) can be constructed with either the floor joist method or the direct tension method, and the construction work is relatively easy. From the viewpoint of saving labor costs, many were adopted at construction sites and became the mainstream of wooden flooring. The long flooring referred to here is an elongated shape having a thickness and width similar to those of a normal flooring material and a length of about 1800 mm or more. The short flooring is a relatively short one having a thickness and width similar to those of an ordinary flooring material and a length of about 900 mm or less.
[0003]
However, timber has many defects such as knots, cracks, and decay, and it has become extremely difficult to obtain a long material with no defects. Costs are also high, making it difficult to obtain at affordable prices. Therefore, many long joints having a relatively short length of about 900 mm or less, that is, a so-called short length material that is finger-jointed at a factory to make a length of about 1800 mm or more have been used. Although it is a little cheaper than a non-defect long material, the finger joint processing is expensive and the long flooring is expensive.
[0004]
Further, when the long flooring is stored in a warehouse or the like before construction, warpage occurs due to moisture or the like if the storage state is poor. In particular, warping in the longitudinal direction is likely to occur, which has been an obstacle during construction. Therefore, instead of a long flooring that is relatively expensive and weak against warping in the longitudinal direction, a short flooring that is relatively inexpensive and strong against warping in the longitudinal direction has been often used. Among them, irregular short flooring with indefinite length is available at a much lower cost than long objects, and it is also resistant to warping in the longitudinal direction, so it can be used at construction sites where construction costs are relatively low. Have been favored. (For example, refer nonpatent literature 1) Random flooring is a thing of various length which has length indefinite, and has the length for every 10 mm pitch by 240 mm or 500 mm or more as an example.
[0005]
[Non-Patent Document 1]
“November Special Issue on Architectural Culture: Checklist for Interior and Exterior Materials” issued by Shokokusha Publishing on November 30, 1991, p7.
[0006]
[Problems to be solved by the invention]
However, the short flooring is much more troublesome than the long flooring, and it has been a big problem for contractors. Although it is conceivable that the short flooring is processed with a finger joint at the factory in advance and is jointed in the longitudinal direction, as described above, not only is the finger labor required to be increased, but also with the finger processing. If it is firmly joined in the longitudinal direction, the bending rigidity of the joint will become too large, and if it is stored in a warehouse for a long time, if it is stored in a bad condition, it will warp in the length direction due to moisture etc. Occurred and became a major obstacle during construction.
[0007]
The present invention is a long flooring with good workability, and is resistant to warpage in the longitudinal direction even if it absorbs moisture during warehouse storage, and can be easily and quickly jointed in the factory or in some cases at the construction site. The object is to provide an inexpensive wooden flooring that can be operated.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the wood flooring according to claim 1 of the present invention is a wood floor material or a longitudinally opposite wood substrate made of laminated wood obtained by laminating and bonding wood wood . A wooden floor material comprising short flooring provided with fitting and locking portions on two or four side surfaces, wherein the short flooring is jointed in the longitudinal direction by temporary fixing means provided on the end face in the short direction. It is characterized by that.
[0009]
Since it becomes a long flooring from the structure which concerns, a construction effort is reduced significantly, and the joint means provided in the end surface of the short direction of a short flooring is a temporary fixing means, Thus, since it is not completely fixed in the longitudinal direction and the bending rigidity of the temporarily fixed portion is low, it is possible to suppress warping in the longitudinal direction due to moisture or the like even if stored in a warehouse for a long period of time. Moreover, since it is a joint that is only temporarily fixed, the joint can be made very easily at the factory and in some cases at the construction site, and the manufacturing cost is low.
[0010]
According to a second aspect of the present invention, in the wood flooring according to the first aspect, the temporary fixing means is an adhesive joining means using a thermoplastic resin adhesive.
[0011]
Since it becomes a long material from the structure which concerns, it is excellent in the following points other than a workability improving remarkably. That is, when the temporary fixing means is a thermoplastic resin adhesive, for example, when a hot melt adhesive is used, the joining work is completed in a very short time, so that the workability is extremely excellent. The time from the joint until the joint part is hardened to some extent is almost instantaneous, extremely short, and can be constructed within several seconds to several tens of seconds. Therefore, it is possible to perform the joint of the short flooring and the tensioning work in parallel at the same time at the same time efficiently and in a short time.
[0012]
Moreover, since it is a joint by temporary bonding, it is not completely firmly bonded and fixed, it is only temporary fixing, and the bending rigidity of the temporary fixing part of the joint can be suppressed to a moderately low level, when stored in a warehouse. It becomes strong against the warp in the longitudinal direction.
[0013]
Further, instead of applying the adhesive to the entire short end face of the short flooring, it is only necessary to apply a small amount in a partially spotted state because it is temporarily fixed. Since only a small amount of thermoplastic resin adhesive is applied, it is relatively inexpensive.
[0014]
In addition, since the thermoplastic resin adhesive is only partially applied and adhered to the short end face of the short flooring, joint processing can be performed very easily at the construction site, not necessarily at the factory. Furthermore, since it takes a relatively short time from the joint to the construction, there is no danger of warping between the joint and the construction.
[0015]
Since the warpage can be suppressed to a small length and the material becomes long, the workability is remarkably improved, and an inexpensive wooden flooring can be realized. In addition, since an adhesive is used, it is possible to join joints very easily and without worrying about material cracking even in the case of a material that is easily broken by nailing or the like, or a material that is too hard to be naild.
Further, when the wood base material is a wood lumber or a laminated wood, the wood fiber of the joint end face is denser than the base material using plywood, particle board, OSB, etc. Strength is moderately stable.
[0016]
According to a third aspect of the present invention, in the wooden flooring according to the first aspect, the temporary fixing means is a mechanical joining means.
[0017]
Since it becomes a long material from the structure which concerns, it is excellent in the following points other than a workability improving remarkably. That is, if the short end surfaces of the short flooring are temporarily fixed with mechanical joining means, the joint location is temporarily fixed with mechanical joining means, so the joint location is not completely fixed, It is possible to keep the bending rigidity of the joint temporarily fixed part low, and it becomes strong against the warp in the longitudinal direction due to moisture during warehouse storage.
[0018]
Moreover, since it is only temporarily fixed by the mechanical joining means, not only is it relatively inexpensive, but joint processing can be performed very easily at the construction site even if it is not necessarily a factory. Therefore, since it takes a relatively short time from the joint to the construction, there is no risk of warping between the joint and the construction.
[0019]
Since the warpage can be suppressed to a small length and the material becomes long, the workability is remarkably improved, and an inexpensive wooden flooring can be realized. Further, since no adhesive is used, there is no stickiness due to the adhesive during the joining operation, and no odor is generated.
Also, when the wood base material is wood lumber or laminated wood, compared to the base material using plywood, particle board, OSB, etc., for example, when nails, staples, tucker needles, etc. are driven The holding force is moderately stable.
[0020]
Here, the mechanical joining means include nail driving, staple driving, tacker needle driving, dowel driving, employment, and various others. Of these, nail driving, staple driving In addition, it is possible to carry out the insertion of a tacker needle by a relatively simple operation, which is advantageous in terms of cost, has an appropriate bonding strength, and can be performed in a very short time. In this case, it is desirable to perform nailing, staple driving, tacker needle driving, and the like from the back of the flooring. The flooring design is damaged when driven in from the surface. Moreover, since it is temporarily fixed, it is sufficient in strength from the back of the flooring. If it is driven from both the front and back surfaces of the flooring, the bending rigidity at the joints of the flooring becomes too large, which is disadvantageous for warping in the longitudinal direction.
[0024]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an example of an embodiment of a wooden flooring according to the present invention will be described in detail with reference to the drawings. FIG. 1 shows a first embodiment of the wood floor material of the present invention (A) is a perspective view showing the floor material looked up from the back surface, and (B) is a sectional view thereof. 2A and 2B show a second embodiment of the present invention, in which FIG. 2A is a perspective view showing the floor material as seen from the back side, and FIG. 2B is a cross-sectional view thereof.
[0025]
The wooden flooring 1 shown in this example is a wooden flooring made of a wooden base material having an elongated rectangular shape in plan view, as shown in FIGS. 1 and 2. A short-sized flooring F is formed by providing a fitting locking portion K that can be fitted, and the short-length flooring F is made long by temporary fixing means J provided on the end face in the short direction of the short-shaped flooring F. It is a long material with multiple joints in the direction.
[0026]
As an example, the fitting and locking portion K uses actual processing in a form in which a male and a female are fitted to each other. In addition to the actual machining, an actual machining, a ladle machining, or a butt type in which end faces are simply abutted may be used. Of these, actual machining is optimal in terms of machining accuracy and workability.
[0027]
The base material of the short flooring F of the present invention may be a woody base material such as plywood, particle board, OSB, etc., other than wood base or laminated wood, but wood base or laminated wood. In the case where the temporary fixing means is an adhesive bonding means using a thermoplastic resin adhesive, compared with a base material using plywood, particle board, OSB, etc. Since the fibers are dense, the strength at the joint location is moderately stable. Therefore, when the short flooring F is jointed in the longitudinal direction to form a long material, there is no fear of breakage or the like, and the construction becomes stable.
[0028]
In addition, when the base material of the short flooring F is a wood lumber or a laminated material, the temporary fixing means is a mechanical joining means, the base material using plywood, particle board, OSB or the like For example, the holding force when a nail, a staple, a tacker needle, or the like is driven in becomes moderately stable. Therefore, when a short flooring is jointed in the longitudinal direction to form a long material, there is no fear of breakage or the like and the construction is stable.
[0029]
As wood species of wood base, in the case of wood muc or laminated timber, in addition to Japanese wood such as oak, zelkova, hinoki, elm, tamo, cherry, hippo, oak, teak, rosewood, octane, lamin, Pine material and the like are also preferably used. The surface is colored or transparent with a synthetic resin paint such as urethane, amino alkyd, acrylic, or polyester resin.
[0030]
The short flooring referred to here is a comparatively short one whose thickness and width are about the same as a normal flooring and whose length is about 900 mm or less. Specifically, it refers to a floor material having a relatively short thickness of about 6 to 18 mm, a width of about 60 to 300 mm, and a length of about 240 to 900 mm. The long flooring is an elongated shape having a thickness and width similar to those of a normal flooring and having a length of about 1800 mm or more. Specifically, the thickness and the width are the same as those of the short flooring, but the length is 1800 to 4000 mm or more.
[0031]
Moreover, the short flooring F used for the wooden flooring 1 of the present invention may be a so-called fixed object having a constant length, or may be a random object having an indefinite length. . Random flooring is far more cost effective than regular flooring. The irregular flooring has an indefinite length, and as an example, it has a length of 240 mm or 500 mm or more and a length of every 10 mm pitch.
[0032]
The wooden flooring 1 of the present invention is joined to a length of about 1800 mm or more by a plurality of temporary fixing means J provided on the short end face of the short flooring F, and becomes a long material. Yes. If the length is about 1800 mm or more, there may be some variation. The wooden flooring 1 of the present invention is unsuitable for the joisting construction method, and is constructed by a straightening construction method on a floor base material such as plywood, particle board, OSB or the like having a thickness of 9 mm or more.
[0033]
In the first embodiment of the present invention, the temporary fixing means J is an adhesive joining means using a thermoplastic resin adhesive A as shown in FIG. As the thermoplastic resin adhesive A, acrylic resins, vinyl acetate resins and the like are suitable. As an example, there is an ethylene / vinyl acetate hot melt adhesive (trade name: Nymelt # 575, manufactured by Nitto Kasei Co., Ltd.). Moreover, as a coating method of the thermoplastic resin adhesive A, a conventional method may be used, and spray coating or brush coating may be used. Since it is temporarily fixed to the last, it is good to apply a small amount to the short end surface of the short flooring F in a partially dotted state.
[0034]
If the thermoplastic resin adhesive A is applied to the entire short end face of the short flooring F, the strength after completion of the bonding becomes too large, which is disadvantageous for warping in the longitudinal direction. If only partly applied and bonded, the bending rigidity of the joint can be kept at a moderately low level, which is advantageous for warping in the longitudinal direction due to moisture absorption. Apply and press by hand for a few seconds (when air temperature is 20 ° C.) until the hot melt adhesive hardens. In this way, the wooden flooring 1 of the present invention is completed.
[0035]
The wood flooring 1 of the present invention that has become a long material may have a strength at the temporary fixing means J, that is, a strength at the joint location, as long as it is not temporarily damaged by handling during construction. Therefore, it is preferable that the bending rigidity at the joint location be appropriately low. Fortunately, even if the wooden flooring 1 absorbs moisture and the warping force in the longitudinal direction works during long-term storage in a warehouse, etc., thanks to the low bending rigidity of multiple joints It ’s not a big warp. Due to the fact that no major warpage occurs and the length becomes a long material, the workability is remarkably improved. In addition, a small amount of the thermoplastic resin adhesive A (in this example, a hot melt adhesive) is partially applied to the end surface of the short flooring F in the short direction in advance at the construction site or in advance at the factory. Therefore, it is very advantageous in terms of cost. If a simple jig for hot melt application is used, it can be applied easily. Therefore, the short flooring F can be jointed in a short time in a factory and at a construction site, and a long material can be obtained.
[0036]
In this example, the actual processing is illustrated as the fitting locking portion K provided on the short end surface of the short floor ring F, and in the actual processing portion, there is usually a slight amount near the back side. There is a gap, and the adhesive bonding means using the thermoplastic resin adhesive of the present invention applies the thermoplastic resin adhesive in a dotted state to this gap. Thus, since it is a temporary fix to the last, it is only necessary to apply an adhesive partially only to the side close to the back surface in the thickness direction of the flooring. As temporary fixing, it is sufficient in strength alone. Moreover, when it applies to the surface side, if it is not good, an excess adhesive will overflow and it will stain the flooring surface. Also from this, it is desirable to apply the adhesive only from the back side.
[0037]
In the second embodiment of the present invention, the temporary fixing means J is a mechanical joining means. As mechanical joining means, there are various methods such as nail driving, staple driving, tacker needle driving, dowel driving, hiring, etc. Among them, as shown in FIG. -Pull-in, tacker-in, etc. can be carried out with relatively simple operations, is advantageous in terms of cost, has an appropriate bonding strength, and can be carried out in a very short time. be able to.
[0038]
In this case, it is desirable to perform nailing, staple driving, tacker needle driving, and the like from the back of the flooring. The flooring design is damaged when driven in from the surface. Moreover, since it is temporarily fixed, it is sufficient in strength from the back of the flooring. If it is driven from both the front and back surfaces of the flooring, the bending rigidity at the joints of the flooring becomes too large, which is disadvantageous for warping in the longitudinal direction.
[0039]
Among the nails, staples, and tacker needles S, the bifurcated nail having a bifurcated tip and the strong tacker needle that can be driven into wood are the most suitable. In the case of a bifurcated nail or a tacker needle, the tip is divided into two forks. Therefore, the end surfaces of the short flow ring F are driven into the base material from the back, and the tips divided into two forks are temporarily fixed.
[0040]
The number of nails, staples, and tacker needles S to be driven in the floor material width direction depends on the width dimension of the short flooring F and the thickness of the staples and needles to be driven. As an example, when the thickness of a normal needle for driving wood is about 1 mm and the floor width is 60 mm, it may be provided at three locations at both ends and the center. In addition, if the floor material width is 90 mm, it is sufficient to drive in a total of 4 places at both ends and 2 in the middle, and if the floor material width is 150 mm, 6 places in both ends and 4 in the middle. About 20 to 50 mm as a standard interval between the needles is a preferable range in terms of workability and bonding strength.
[0041]
The depth of the needle to be driven is optimally about 50 to 90% of the thickness of the substrate. When it is as shallow as 50% or less, the bonding strength is weak, and it is damaged at the time of construction. Also, if the depth is too deep, such as 90% or more, care must be taken because the driving angle may be slanted, or if the air pressure of the air-tucker at the time of driving is strong, it may penetrate into the floor surface or side surface.
[0042]
As described above in detail, as shown in the first embodiment, as the temporary fixing means J of the wooden flooring 1 of the present invention, an adhesive joining means using a thermoplastic resin adhesive A such as a hot-melt adhesive. Whether to temporarily fix with a mechanical jointing means such as a tacker needle as shown in the second embodiment, is used depending on the material type of the short flooring F to be joined. good. In the case of hardwood such as oak, oak, zelkova, teak, rosewood, or octane, a tacker needle or the like is difficult to drive in, so an adhesive joining means using a hot melt adhesive is suitable. Also, in the case of a material type that is prone to crack, an adhesive joining means is suitable.
[0043]
On the other hand, in the case of a material type having a relatively small specific gravity such as cypress or pine, a mechanical joining means is suitable because a tacker needle or the like can be easily driven. Further, in the case of a material type that is difficult to break, a mechanical joining means is suitable. It is important to use these properly depending on the grade. Depending on the material type, it may be used in combination.
[0044]
【The invention's effect】
As described above, according to the wood flooring according to the present invention, the short flooring is bonded in advance at the factory or construction site, and the short end surfaces of the flooring are bonded to each other by a thermoplastic resin adhesive such as hot melt. Temporarily fastened with the joining means, or temporarily secured by mechanical joining means such as a tucker needle from the back of the flooring material to make a long material, the bending rigidity of the temporary fastening part is moderately reduced, and the long material However, the occurrence of warpage in the longitudinal direction is suppressed, and the construction workability is remarkably improved because of the long material. Moreover, these joining means are merely temporary fixing means, and can be joined very easily in a factory or at a construction site in a short time. Since a relatively inexpensive short flooring is used to join by a joint method that does not cost much, a wooden flooring using these joining means is extremely inexpensive.
In addition, if the wood base material is wood lumber or laminated wood, the strength such as the adhesive strength and nail retention strength at the joint location is moderately stable compared to the base material using plywood, particle board, OSB, etc. Will be.
[Brief description of the drawings]
FIG. 1 shows a first embodiment of the wood flooring of the present invention.
(A) Perspective view.
(B) Sectional view.
FIG. 2 shows a second embodiment of the wood flooring of the present invention.
(A) Perspective view.
(B) Sectional view.
[Explanation of symbols]
1 Wood flooring F Short flooring K Fitting locking part R Flooring back H Flooring surface J Temporary fastening means A Thermoplastic resin adhesive S Nail, staple, tacker needle

Claims (3)

A wood floor material comprising a short flooring provided with fitting engagement portions on two or four opposite longitudinal sides of a wood substrate made of laminated wood or laminated wood obtained by laminating and adhering wood meal. A wooden flooring comprising a plurality of short flooring jointed in the longitudinal direction by temporary fixing means provided on an end face in the short direction.   The wood flooring according to claim 1, wherein the temporary fixing means is adhesive bonding means using a thermoplastic resin adhesive.   2. The wooden flooring according to claim 1, wherein the temporary fixing means is a mechanical joining means.

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