JP2007154419A - Tongue-groove joined plate material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a plate material such as a tongue-groove joined flooring material, which prevents a deterioration in designability by reducing the size of a gap between the plate materials, made by drying shrinkage. <P>SOLUTION: A tongue part 2 and a groove part 3 are formed in the right and left longitudinal parts of the flooring material 1. An upper inclined surface 5, which is inclined toward a base end of a tongue 4 from a surface of the plate material, an overhanging part 6, which overhangs from a lower end of the upper inclined surface 5, and a lower inclined surface 7, which is inclined to the base end of the tongue 4 from a leading end of the overhanging part 6, are formed in the upper part of the tongue part 2. A groove 9 is formed in the groove part 3; an upward inclined surface 12 is formed on an upside protrusive streak 10; an upper downward inclined surface 13 is formed at the lower end of the upward inclined surface 12; a ceiling surface 14 is formed at the lower end of the upper downward inclined surface 13; and a lower downward inclined surface 15 is formed toward the groove 9 from an end of the ceiling surface 14. When the tongue part 2 and the groove part 3 are tongue-and-groove-joined together, the upper inclined plane 5 of the tongue part 2 and the upper downward inclined surface 13 of the groove part 3 abut on each other. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a plate material for actually joining a male real part and a female real part formed in a longitudinal part by abutting each other.

  Conventionally, as shown in FIG. 6, a flooring 41, which is a plate material in which a male fruit 42 and a female fruit 43 are formed on the left and right longitudinal portions of a wooden base material, is well known. This floor material 41 is driven by nails from the base portion on the surface side of the male fruit 42 to fix the floor material to the floor base, and the female fruit 43 of another floor material 41 is attached to the male fruit 42 of the fixed floor material 41. The flooring 41 is pasted by fitting. In the flooring 41, the upper end surface 44 of the male fruit 42 and the end surface 45 of the protruding portion above the female fruit 43 are formed in a vertical plane, and the chamfered portion 47 is formed at the upper end corner of the upper end surface 44 and the end surface 45. , 46 are formed. In the state where the floor materials 41 and 41 are actually joined, the upper end surface 44 and the end surface 45 which are vertical surfaces are close to each other, and the decorative groove 48 is formed on the floor surface by the chamfered portions 46 and 47. (Patent Document 1).

  When the conventional flooring 41 shown in FIG. 6, particularly a solid flooring, is used as a flooring for floor heating, the flooring is shrunk by heat release and dried by heating, and the flooring A gap occurs in the actual joint. When a gap is generated in the actual joint portion, the conventional flooring 41 shown in FIG. 6 has the upper end surface 44 and the end surface 45 below the chamfered portions 46 and 47 formed as vertical surfaces, and the chamfered portions 46 and 47. Since the corner is formed between the upper end surface 44 and the end surface 45, the gap is conspicuous due to the corner, and the design is also deteriorated. It takes time and effort to remove it. Furthermore, when used for warm water floor heating, the shrinkage is further increased, and the actual situation is that it does not fit within the gap amount recommended by the gas company to be adopted (allowable amount of 0.5 mm or less when viewed from directly above). .

  Therefore, the flooring 51 shown in FIG. 7 has a male upper side inclined surface 53 from the base upper side of the male fruit 52 to the flooring surface 51a, and the male upper side inclined surface 53 from the upper edge of the female fruit 55 to the surface side. Even if the floor material 51 contracts and a gap is generated by providing a corresponding female actual upper inclined surface 56 and providing a chamfered portion 57 between the female actual upper inclined surface 56 and the floor material surface 51a. The gap is inconspicuous (Patent Document 2). However, although the flooring 51 shown in FIG. 7 can reduce the gap, it cannot substantially eliminate the gap, and the female upper inclined surface 56 is formed long. If a load is applied in the vicinity of 57, the portion where the female upper inclined surface 56 is formed may bend downward to create a step in the floor.

Japanese Utility Model Publication No. 4-36042 Japanese Patent No. 3682441

  The object of the present invention is to eliminate the inconveniences of the conventional plate materials that actually join the plate materials as described above. Even if the plate material dries and shrinks to create a gap between the plate materials, the design property is maintained. It is not bad, and it is to provide a plate material in which the gap is reduced and substantially no gap is formed between the plate materials.

  The present invention is for solving the above-mentioned problem, and the present invention is a plate material in which a male part and a female part are formed in the left and right longitudinal parts, and the upper part of the male part in the male part, An upper inclined surface that inclines toward the base end of the male from the surface of the plate material, a narrow projecting portion that projects horizontally from the lower end of the upper inclined surface, and from the tip of the overhang to the base of the male A slanted lower inclined surface is formed, a female fruit is formed on the female real part by an upper ridge and a lower ridge, and an upward inclined surface is formed at an upper corner of the upper ridge. An upper downward inclined surface having a downward surface is formed at the lower end of the upward inclined surface, and a narrow ceiling surface is formed at the lower end of the upper downward inclined surface. A lower downward inclined surface that is inclined from the end of the ceiling surface toward the lower surface of the upper ridge, and has a male part and a female part. When joined, a plate material, characterized in that the upper inclined surface and the extending portion of Omi portion is configured to abut respectively upper downwardly inclined surface and the ceiling surface of the Mesumi portion.

  And even if the board | plate material of this invention shrink | contracts by drying etc. and a clearance gap arises between the upper inclined surface of a male real part and the upper downward inclined surface of a female real part, it is for decoration currently formed between board | plate materials. Since the shape of the groove is not so changed, the design is not impaired, and the generated gap is smaller and less conspicuous than the gap generated in the conventional plate material.

  Further, in the plate material of the present invention, even if the floor material contracts, the overhanging portion of the male part and the ceiling surface of the male part are always in contact with each other, so that a substantial gap may be generated between the floor materials. In addition, since the load acting on the vicinity of the upward inclined surface of the female real part is supported by the overhanging part, a step is hardly generated between the floor materials.

  Furthermore, in the plate material of the present invention, when the lower inclined surface of the male real part and the lower downward inclined surface of the female real part are formed substantially perpendicularly, there are few male real parts and female real parts for actual joining. It can be formed with a cutting allowance, and the effective area of the plate material can be increased.

  Further, in the plate material of the present invention, the upward inclined surface of the female real part is formed in a substantially R-shaped cross section, and the upper inclined surface of the male real part is a lower side that is a flat surface and a flat surface having a substantially R-shaped cross section If it is comprised with an inclined surface, it can give the softness on an external appearance and can be set as the board surface which has a good touch.

  As can be understood from the above description, the flooring material of the present invention shrinks due to drying or the like, and even if a gap is generated between the plate members that are actually joined, the shape of the decorative recess formed between the plate members changes significantly. Therefore, the design property is not impaired, the generated gap is not conspicuous smaller than the gap generated in the conventional plate material, and no substantial gap is generated.

  Hereinafter, preferred embodiments of the plate material of the present invention will be described with reference to the drawings with reference to the floor material. FIG. 1 is a partially cutaway perspective view showing the flooring of the present invention, FIG. 2 is a partially enlarged sectional view showing a joined state of the flooring of the present invention, and FIG. It is a partial expanded sectional view which shows a joining state when a clearance gap produces.

  As shown in FIG. 1, a floor material 1 formed of a wooden base material has male and female portions 2 and 3 for actually joining the floor material 1 by abutting the floor material 1 on both end faces in the longitudinal direction. . In the male part 2, a male fruit 4 is formed so as to protrude substantially at the center in the thickness direction of the flooring 1. The male part 2 is formed with an upper inclined surface 5 that is inclined from the surface 1a of the flooring 1 toward the proximal direction of the male fruit 4, and is horizontally stretched at the lower end of the upper inclined surface 5. A narrow overhanging portion 6 is formed. Further, a lower inclined surface 7 that is inclined toward the base end of the male fruit 4 is formed at the distal end of the overhang portion 6. The upper inclined surface 5 has an inclination angle of approximately 45 degrees, and the portion near the surface 1a in the upper inclined surface 5 functions as a member that forms a decorative groove 17 when the flooring materials 1 and 1 are actually joined. Yes. The inclination angle of the lower inclined surface 7 may be the same as the inclination angle of the upper inclined surface 5, but if the inclination angle is larger than the inclination angle of the lower downward inclined surface 15 of the female real part 3 to be described later, the lower inclined surface 7. A space for accommodating the head of the nail for fixing the flooring 1 can be formed between the lower inclined surface 15 and the lower part. The width of the overhanging portion 6 is determined in consideration of the amount by which the flooring 1 is dried and shrinks. Normally, if the width is about 1 mm, the overhanging portion 6 and the female fruit are removed even if the flooring 1 is dried and shrinks. There is no gap between the part 3.

  A lower end surface 8 that forms a substantially vertical surface is formed in the lower part of the male fruit 4, and the lower end surface 8 is located on the distal end side of the male fruit 4 from the base of the male fruit 4. Even if the nail is driven into the base at a large angle of, for example, about 65 degrees, the crack of the male 4 is reduced, and the allowable range of the nail driving angle can be widened.

  In the female real part 3, a female real 9 is formed by an upper ridge 10 and a lower ridge 11. The upper ridge 10 of the female fruit 9 has an upward inclined surface 12 formed at the upper corner thereof, and when the floor material 1 is actually joined, the upward inclined surface 12 of one floor material 1 and the other A shallow groove 17 for decoration is formed by the upper inclined surface 5 in the flooring 1.

  Further, an upper downward inclined surface 13 having a downward surface is formed at the lower end of the upward inclined surface 12, and this upper downward inclined surface 13 is male when the floor materials 1 and 1 are actually joined. It is comprised so that the upper part inclined surface 5 of the real part 2 may contact | abut. A narrow ceiling surface 14 is formed at the lower end of the upper downward inclined surface 13, and this ceiling surface 14 is the upper surface of the overhanging portion 6 of the male real part 2 when the floor materials 1 and 1 are actually joined. The floors 1 and 1 are kept in contact with each other, so that no substantial gap is generated between the flooring materials 1 and 1, and there is no vertical step between the flooring materials 1 and 1. A lower downward inclined surface 15 inclined toward the lower surface of the upper ridge 10 is formed at the end of the ceiling surface 14, and the lower downward inclined surface 15 is actually joined to the floor materials 1 and 1. Sometimes it faces the lower inclined surface 7 of the male part 2.

  The flooring 1 of the present invention is configured such that, when the flooring 1 is actually joined, a decorative groove 17 is formed by the upper slope 5 of the male part 2 and the upward slope 12 of the female part 3. The vertical surface is not formed below the decorative groove 17. Therefore, unlike the conventional flooring 41 shown in FIG. 6, since the corners are not formed between the chamfered portions 46 and 47 and the vertical surface, the flooring 1 contracts and the upper part of the male part 2 Even if a gap is generated between the inclined surface 5 and the upper downward inclined surface 13 of the female real part 3, the design property is not impaired, and the gap is not conspicuous. That is, when the decorative groove 17 is viewed from above, the upper inclined surface 5 and the upward inclined surface 12 forming the decorative groove 17 are viewed, and a new surface appears even if a gap is generated. Therefore, the design property does not deteriorate. Further, for example, as shown in FIG. 3, the flooring 1, 1 is shrunk by 1 mm in the horizontal direction, and horizontally between the lower inclined surface 7 of the male real part 2 and the lower downward inclined surface 15 of the female real part 3. Even if the gap H in the direction is 1 mm, the distance h between the upper inclined surface 5 of the male part 2 and the upper downward inclined surface 13 of the female part 3 is 0.88 mm, and the floor materials 1 and 1 contract. The gap generated between the flooring materials 1 and 1 can be made smaller than the above-mentioned amount, the gap can be made less noticeable, and fine dust or dust accumulated in the gap is less likely to enter the back. Further, even if the floor materials 1 and 1 contract, the overhanging portion 6 of the male real part 2 and the ceiling surface 14 of the female real part 3 are always in contact with each other. In addition, since a load acting on the vicinity of the upward inclined surface 12 of the female real part 3 is supported by the overhanging part 6, a step is hardly generated between the flooring materials 1 and 1.

  Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various designs can be made without departing from the spirit of the present invention described in the claims. It can be changed. For example, the lower inclined surface 7 of the male part 2 may be formed substantially vertically, or may be formed so that the surface faces downward as shown in FIG. When formed in such a manner, in the case where the lower inclined surface 7 of the male part 2 is formed as shown in FIG. 3, the male part 2 cannot be formed unless the base portion of the width W is cut. In the case shown in FIG. 4, the male part 2 can be formed by cutting a base material portion having a width w, and the male part 2 can be formed with a small cutting allowance. Similarly, the lower downward inclined surface 15 of the female real part 3 may be formed substantially vertically, and if the lower downward inclined surface 15 is formed substantially vertical, the cutting allowance for forming the female real part is reduced. be able to. In addition, as shown in FIG. 4, when the lower inclined surface 7 of the male real part 2 and the lower downward inclined surface 15 of the female real part 3 are formed almost perpendicularly, in the rainy season when the humidity is high, Even if a certain floor material 1 swells, the upper downward inclined surface 13 of the female real part 3 does not rise along the upper inclined surface 5 of the male real part 2. Does not occur.

  Further, in the above embodiment, the upper inclined surface 5 of the male real part 2 and the upward inclined surface 12 of the female real part 3 are formed as flat surfaces, but as shown in FIG. The direction inclined surface 12 is a surface 12a having a substantially R-shaped cross section, the upper inclined surface 5 of the male part 2 is an upper portion 5a that functions as a decorative groove 17, and the lower portion below the upper portion 5a is a substantially R-shaped cross section. If 5b is comprised with a plane, it can give a soft appearance and it can be set as the floor material which has a good touch.

  Although the present invention has been described with reference to the floor material in the above-described embodiment, it is a plate material such as a ceiling plate or a wall material as long as a male real part and a female real part are formed at both side end parts. Of course, you may. Further, the plate material may be one obtained by laminating and bonding a thin MDF or a ground plate on the surface of a solid plate material or a base plate plywood.

1 is a partially cutaway perspective view showing a flooring according to one embodiment of the present invention. The partial expanded sectional view which shows the joining state of the said flooring. The partial expanded sectional view which shows a joining state when the said floor material shrink | contracts and the clearance gap produces. The partial expanded sectional view which shows the joining state of the flooring of the other form of this invention. The partial expanded sectional view which shows the joining state of the flooring of the other form of this invention. The partial expanded sectional view which shows the joining state of the flooring of a prior art example. The partial expanded sectional view which shows the joining state of the flooring of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Floor material, 2 ... Male real part, 3 ... Female real part, 4 ... Male real, 5 ... Upper inclined surface, 6 ... Overhang | projection part, 7 ... Lower inclined surface, 8 ... Lower end surface, 9 ... Female real, DESCRIPTION OF SYMBOLS 10 ... Upper protrusion, 11 ... Lower protrusion, 12 ... Upward inclined surface, 13 ... Upper downward inclined surface, 14 ... Ceiling surface, 15 ... Lower downward inclined surface, 17 ... Decoration groove | channel

Claims (3)

In the plate material in which the male part and the female part are formed in the left and right longitudinal parts,
The upper part of the male part in the male part has an upper inclined surface that is inclined from the surface of the plate material toward the proximal direction of the male fruit, a narrow projecting part that projects horizontally from the lower end of the upper inclined surface, A lower inclined surface that is inclined from the distal end of the overhang portion to the proximal end of the male body is formed,
In the female real part, a female fruit is formed by an upper ridge and a lower ridge, and an upward inclined surface is formed at an upper corner of the upper ridge, and the upper inclined surface An upper downward inclined surface having a downward surface is formed at the lower end, and a narrow ceiling surface is formed at the lower end of the upper downward inclined surface. A lower downward inclined surface that is inclined toward the lower surface of the strip is formed,
When the male part and the female part are actually joined, the upper inclined surface and the overhanging part of the male part are configured to contact the upper downward inclined surface and the ceiling surface of the female part, respectively. A board material characterized by   2. The plate material according to claim 1, wherein the lower inclined surface of the male real part and the lower downward inclined surface of the female real part are formed substantially perpendicularly.   The upward inclined surface of the female real part is formed in a substantially R-shaped cross section, and the upper inclined surface of the male real part is configured by an upper inclined surface having a substantially R-shaped cross section and a lower inclined surface that is a plane. The plate material according to claim 1 or 2, wherein

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