JP2011117269A - Floor material and method for removing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a floor material to be easily removed when scratched or damaged. <P>SOLUTION: The floor material 1 of substantially rectangular shape in a plan view formed with a tongue 2 and a groove 3 on two adjacent sides is formed with grooves (4, 5) from the rear face side of the floor material to the front face side in a position of 2.0 (preferably 8.5) to 15.5 mm to the groove 3 side from the root of a protrusion of the tongue 2, in a depth within a range of ±1.5 mm from the height position of the upper face of the protrusion of the tongue 2. When the floor material has to be removed after construction, the floor material to be removed is lifted upward. A tip side portion including the tongue 2 from the groove is thereby broken, and the groove 3 is pulled out of the tongue 2 of the adjacent existing floor material to attain easy removal. Grooves (17, 18) can be formed in a position of 2.0 (preferably 8.5) to 15.5 mm on the tongue side from the inner part of the groove 3 in the same way. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a flooring that can be easily removed when a scratch or breakage occurs, and a method for removing the flooring.

  It may be necessary to remove one or several damaged floor materials and replace them with new floor materials after connecting the floor materials through the mating of the male and female. is there. In such a case, conventionally, a floor adjacent to the flooring is removed after making a cut from the surface along the outer peripheral edge of the flooring to be removed and removing the flooring part inside the cut. The fitting part with the material was removed.

JP 2001-262815 A

  However, according to such a conventional technique, when a cut is formed or a fitting portion is removed, an adjacent floor material may be damaged. In addition, dust and dirt are generated when the cut is formed, which deteriorates the working environment and also requires cleaning of the generated dust and dirt. It has also been proposed that the flooring can be easily peeled off by applying the adhesive to the part of the back surface of the flooring in a dotted or linear manner to weaken the adhesive strength to the floor base ( In this case, however, the fitting part (particularly the female lower projection) cannot be removed because it becomes an obstacle, and eventually the fitting part must be excised as in the prior art. Don't be.

  Therefore, the problem to be solved by the present invention is to make it easy to remove a floor material that has been damaged or broken and to prevent dust from being generated during the removal.

  In order to solve this problem, the present invention is a flooring material having a substantially rectangular shape in plan view in which males and females are formed on two adjacent sides. Grooves are respectively formed from the floor material rear surface side to the front surface side at a position of 2.0 to 15.5 mm on the side. Each groove is preferably formed to a depth within a range of ± 1.5 mm from the height position of the upper surface of the male protrusion.

  Further, the present invention provides a substantially rectangular flooring material in which a male fruit and a female fruit are formed on two adjacent sides in a plan view in a substantially rectangular shape. A first groove is formed at a position of ˜15.5 mm from the back side of the flooring material toward the front side, and at least one of the other two adjacent sides from the back of the female body A second groove is formed on the side at a position of 2.0 to 15.5 mm from the floor material rear surface side to the surface. The first groove is preferably formed at a depth within a range of ± 1.5 mm from the height position of the upper surface of the male protrusion, and the second groove is the height of the lower protrusion forming the female fruit. It is preferable that the depth is as high as the above and does not reach the lower surface of the upper protrusion.

  Furthermore, the present invention also provides a method of removing one floor material after constructing it on the base material while connecting such a floor material through fitting between a male and a female. By pulling up the floor material to be raised, the portion including the male body is broken from the groove, and the floor material is removed. Alternatively, by pulling up the floor material to be removed, at least one of the part including the male fruit from the first groove or the part including the female lower protrusion from the second groove is broken, It is characterized by removing the material. The operation of pulling up the floor material to be removed can be performed by attaching a locking jig to the surface of the floor material, and locking the tool on the locking jig and pulling up the floor material.

  According to the present invention, when removing a floor material that has been damaged or damaged, when a portion close to the male body of the floor material is pulled upward, the groove formed from the back side near the male body is used as a starting point. Since the front-end | tip part containing is fractured | ruptured, a flooring can be removed easily. The groove is formed at a position of 2.0 to 15.5 mm from the base of the male protrusion to the female fruit side. If this groove position is too close to the base of the male protrusion, the tip side of the groove may be damaged during construction, or the plywood or MDF may become damaged due to insufficient strength. In order to secure the strength of the entire flooring material and the male seed, the distance from the root of the male projecting portion to the groove is set to 2.0 mm or more, preferably 8.5 mm or more. On the other hand, if this distance exceeds 15.5 mm, it will be too far from the edge of the floor material on the male side, and it will be difficult to break even if the floor material to be removed is pulled up, and there will be a portion that remains on the floor substrate after the break The removal operation becomes difficult or complicated. Furthermore, this groove is formed to a depth within a range of ± 1.5 mm from the height position of the upper surface of the male protrusion, so that when the floor material to be removed is pulled up, the tip portion including the male is a groove. It can be more easily broken starting from.

  In addition, a first groove is formed from the back side of the floor material to the front side at a position of 2.0 to 15.5 mm from the root of the protruding part of the male side of the adjacent two sides to the female side, A second groove was formed from the back side of the floor material to the surface at a position of 2.0 to 15.5 mm from the back of the female body to the male body side of at least one of the two adjacent sides. According to the embodiment of the present invention, by pulling up the floor material to be removed upward, not only the front end portion on the male side but also the front end portion on the female side can be broken at the same time starting from the groove. Therefore, the effect that the flooring can be easily removed is more greatly exhibited. The first groove is formed at a position of 2.0 to 15.5 mm from the base of the male protrusion to the female fruit side, and the second groove is 2.0 to 15 .5 from the back of the female fruit to the male fruit side. It is formed at a position of 5 mm. If these first and second groove positions are too close to the base of the male protrusion or the back of the female fruit, the tip side part from the groove may be damaged during construction, or the plywood that becomes a substrate with insufficient strength Since there is a possibility that the MDF may be damaged or peeled off, in order to ensure the strength of the entire flooring material and the male and female seeds, the distance from the base of the male projecting part to the first groove and the inner part of the female seed The distance to the second groove is 2.0 mm or more, preferably 8.5 mm or more. On the other hand, if this distance exceeds 15.5 mm, it will be too far away from the end of the floor material on the male / female side, making it difficult to break even if the floor material to be removed is pulled up, The remaining part becomes large and the removal work becomes difficult or complicated. Further, the first groove is formed at a depth within a range of ± 1.5 mm from the height position of the upper surface of the male protrusion, and the second groove is a lower protrusion that forms a female fruit from the back of the flooring. By forming the depth up to a height that is equal to or higher than the height of the upper portion and does not reach the lower surface of the upper protrusion, when the floor material to be removed is pulled up, It can be easily broken.

  According to the present invention, when removing a floor material that has been damaged or damaged after construction, the floor material can be easily removed simply by pulling up the floor material, and it is necessary to form a cut in the interior as in the prior art. Since there is no dust, no dust is generated and no cleaning is required.

  In addition, when removing the flooring, if a locking jig is attached to the surface of the flooring and the tool is locked to the locking jig and the flooring is pulled up, the removal work can be carried out smoothly. Can be performed, and workability is improved.

It is sectional drawing (a) and male part enlarged sectional view (b) of the flooring by one Embodiment of this invention. Cross-sectional view (a) is a cross-sectional view taken along line AA in FIG. It is a back view of this flooring. It is a construction state top view of this flooring. FIG. 3B is a sectional view of the flooring construction state taken along the cutting line B-B. It is explanatory drawing when removing the constructed flooring. It is explanatory sectional drawing (a) which shows the creation method of the floor material for replacement | exchange used instead of the removed flooring, and the fragmentary sectional view (b) which shows the fitting part by the side of the fruit in the construction state. It is sectional drawing (a) and the male part enlarged sectional view (b) of the flooring by other embodiment of this invention. Cross-sectional view (a) is a cross-sectional view taken along section line CC in FIG. It is a base material back view of this flooring. It is a construction state sectional view of this flooring. It is explanatory drawing when removing the constructed flooring. It is explanatory sectional drawing (a) which shows the creation method of the floor material for replacement | exchange used instead of the removed flooring, and the fragmentary sectional view (b) which shows the fitting part by the side of the fruit in the construction state. Sectional drawing (a) of the flooring by other embodiment of this invention. It is a male real part expanded sectional view (b) and a female real part expanded sectional view (c). Cross-sectional view (a) is a cross-sectional view taken along the line D-D in FIG. It is a back view of this flooring. It is a construction state sectional view of this flooring. It is explanatory drawing when removing the constructed flooring. It is a back view of the flooring by other embodiment of this invention. It is a back view of the flooring by other embodiment of this invention. It is a perspective view of the jig | tool for a latch used when removing a flooring. It is a perspective view explaining the operation | work at the time of attaching to the floor material which should remove this latching jig | tool. It is a fragmentary sectional view in the state where this locking jig was attached. It is a perspective view explaining the operation | work at the time of pulling up a flooring by applying a bar to this latching jig. It is sectional drawing explaining the operation | work similar to FIG.

  Hereinafter, the present invention will be described in detail with reference to examples. However, the present invention is not limited to these examples, and various modifications can be made within the scope of the invention defined by the description of the scope of claims. obtain.

  FIG. 1 shows a flooring 1 according to an embodiment of the present invention, that is, a flooring 1 having a substantially rectangular shape in plan view in which a male fruit 2 and a female fruit 3 are formed on two adjacent sides by actual machining. Yes. FIG. 1 is a cross-sectional view of the flooring 1 cut along the short direction (width direction), and a male 2 formed at both ends in the short direction so as to extend over the entire length in the longitudinal direction. The female seed 3 and the female seed 3 are formed at both ends in the longitudinal direction (length direction).

  The material of the flooring 1 is not particularly limited, and is made of a single or arbitrary combination of wood substrates such as plywood, wood fiber board, OSB, etc., and high-density soft resin sheet, rubber sheet, foamed resin. A laminated plate or a composite plate in which sheet materials such as sheets are laminated at arbitrary positions can be used, and the rigidity is such that a portion including the male 2 is broken from the grooves 4 and 5 described later when pulled up after construction. As long as it has.

  In this flooring 1, a groove extending over the entire length in the longitudinal direction of the flooring 1 at a position of 2.0 (preferably 8.5) to 15.5 mm from the base of the protrusion of the male 2 to the side of the female 3. 4 and a groove 5 extending over the entire length in the lateral direction is formed (FIG. 2). These grooves 4 and 5 are substantially the same height position as the upper surface 2a of the protrusion 2 of the male body 2 (for example, from the height position of the upper surface 2a of the male protrusion section) from the floor material back surface 1b side to the front surface 1a side. It is formed to have a depth of up to ± 1.5 mm (FIG. 1). The groove depth is generally in the range of 1.5 to 8 mm. For example, the grooves 4 and 5 are assumed to have a depth of 2.5 mm for a 6 mm thick floor material and 5.5 mm for a 12 mm thick floor material. It is formed. The width of the grooves 4 and 5 is about 1 to 5 mm. The shape of the grooves 4 and 5 may be a U-shaped cross section, a V-shaped cross section, or a shape in which the back of the U-shaped cross section is sharpened to a V-shape, and is not particularly limited. .

  3 and 4 are diagrams showing the construction state of the floor material 1. The floor materials 1 and 1 are arranged on the base material 6 coated with the adhesive 8 (FIG. 5), and the male fruit 2 and the female fruit 3 are fitted. It will be connected through the joint. More specifically, the floor material 1 (floor material 1 in the center of FIG. 4) is bonded with the adhesive while the male fruit 2 of the existing floor material 1 (for example, the floor material 1 on the right side of FIG. 4) is fitted to the female fruit 3. After being attached to the base material 6, the nail 7 is driven from the vicinity of the base of the projecting portion of the male 2 and fixed to the base material 6. In this way, the flooring 1 is sequentially constructed. You may attach a double-sided tape, a hook-and-loop fastener, etc. to the base material back surface 1b, and may fix to the base material 6. FIG. Adhesive may be applied to the upper surface 2a of the protrusion 2a of the male fruit 2 and / or the inner surface of the female fruit 3 to reinforce the fitting between the adjacent floor materials 1,1. Further, screws or staples may be used in place of the nail 7.

  In addition, it is preferable to use what added the inorganic type filler to the urethane type adhesive as the adhesive agent 8 used when constructing the flooring 1 to the base material 6. FIG. By adding the filler, the adhesive force can be weakened to facilitate the removal of the flooring 1, and the effect of increasing the adhesive can also be obtained. As the filler, for example, powdered calcium carbonate can be used. An adhesive having a peel strength smaller than the interlayer peel strength of the flooring 1 is used.

  When the floor material 1 constructed as shown in FIG. 3 and FIG. 4 is damaged or damaged and it is necessary to remove it for replacement with a new floor material, as shown in FIG. By pulling up the floor material 1 (floor material 1 in the center of FIG. 5) to be raised, the male fruit 2 is removed from the grooves 4 and 5 formed at a predetermined depth on the back side in the vicinity of the projecting root of the male fruit 2. The portion 9 that is included is broken and the raised flooring 1 is obliquely pulled up to the male 2 side, so that the female 3 is fitted with the male 2 of the adjacent flooring on the opposite side (the flooring 1 on the right side of FIG. 5). The flooring 1 can be removed by pulling out from the joint. When the flooring substrate is thick, it is firmly fixed to the base material 6 with the nail 7 on the male 2 side, but the tip 9 is broken from the grooves 4 and 5 on the male 2 side fixed with the nail. Therefore, the flooring 1 can be easily removed. In addition, the specific operation | work for pulling up this flooring 1 is mentioned later.

  After the floor material 1 is removed in this way, the adhesive 8 and the double-sided tape remaining on the surface 6 of the floor base where the floor material 1 is removed, and the fragments of the floor material 1 generated when the floor material 1 is removed are removed with a spatula. Remove using etc. Further, since the male fruit 2 included in the broken part 9 is left in a state of being fitted to the female fruit 3 of the adjacent floor material 1 (the floor material 1 on the left side in FIG. 5), the male fruit 2 is driven into the broken part 9. After the nail 7 is pulled out, it is pulled out from the female fruit 3 and removed. The adhesive at the time of flooring construction is usually applied to the base material 6 in the central region excluding the peripheral part, and since the adhesive 8 is not applied to the back surface of the broken part, even the nail 7 is removed. By doing so, it is easy to remove the broken portion 9.

  As a flooring material to be constructed in place of the removed flooring material 1, a flooring material 10 having a female real part shape as illustrated in the lower part of FIG. 6A can be used. In this replacement flooring 10, the female lower projection 3 b of the flooring 1 is cut in advance. In the example of FIG. 6 (a), the female lower projection 3b is cut by inserting a blade as shown by a dotted line upward from the floor material back surface 1b position along the back 3a of the female fruit 3. As a result, a space 3d is formed below the remaining female upper protrusion 3c.

  As shown in FIG. 6 (b), the flooring 10 is coated with an adhesive on the surface of the floor base 6 smoothed by removing the adhesive 8 and the like after the flooring 1 is removed, and the same as necessary. After the adhesive is applied also to the upper surface of the protrusion of the male 2 of the existing flooring 1 adjacent to the right side of the figure, the existing flooring 1 adjacent to the left side of the male 2 (not shown in FIG. 6B). The female fruit upper protrusion 3c is placed so that the male fruit 2 of the existing flooring 1 adjacent to the right side is accommodated in the space 3d after the female fruit lower protrusion 3b is cut. It can be constructed by.

  Since the floor material 10 is constructed by cutting the female bottom projection 3b fitted below the male body 2 in advance, further damage and damage will occur after the construction, so that it can be replaced with a new floor material. When it is necessary to remove the male fruit 3 side, the male fruit 2 can be easily removed simply by pulling the male fruit 2 out of the fitting with the female fruit 3 of the left adjacent existing flooring 1.

  In FIG. 5, when the floor material 1 to be removed is pulled up, the floor material portion 1 c is broken substantially horizontally from the height position of the rear surface 4 a of the grooves 4, 5, and the floor material portion 1 c is located above the broken portion 9. Although shown to remain in the protruding state, the broken state is not limited to this. In some cases, it may be torn substantially upward along the side surface 4b of the grooves 4 and 5 so as not to leave the flooring portion 1c. Even in such a case, similarly to the above, the nail 7 driven into the broken portion 9 can be pulled out and easily pulled out from the female fruit 3.

  In the above description, the figure which shows the cross section of the flooring 1 in the transversal direction about the operation | work which removes the flooring 1, and the operation | work which constructs the flooring 10 for replacement | exchange in the space of the removed flooring 1 (FIG. 5, FIG. 6 (b)) is referred to, it goes without saying that the same operation is performed in the longitudinal section of the flooring 1. That is, in the same manner as described above and shown in FIG. 5, the male 2 side extending in the short direction of the flooring 1 is also pulled up to break the portion including the male 2 from the groove 5, The flooring 1 is removed by pulling 3 out of the mating with the male 2 of the adjacent flooring. Further, in the same manner as described above and shown in FIG. 6B, the male fruit 2 extending in the short direction of the replacement floor material 10 is replaced with the female fruit 3 of the existing floor material adjacent to one side in the longitudinal direction. The replacement floor material 10 is constructed such that the female actual upper protrusion 3c is fitted over the male fruit 2 of the existing floor material 1 adjacent to the opposite side in the longitudinal direction.

  FIG. 7 shows a soundproof flooring 11 in which a cushioning material 12 is adhered to the back surface 1b of a woody base material 1 such as MDF as a flooring according to another embodiment of the present invention. Since the wooden base material 1 has substantially the same configuration as the flooring material 1 of the first embodiment, the same or corresponding parts or elements are denoted by the same reference numerals and their detailed description is omitted. The cushion material 12 is made of a material having excellent cushioning properties such as polyurethane foam and other resin foam resin sheets, thereby improving soundproofing as a flooring material. The cushion material 12 is adhered to the back surface of the wooden substrate 1 with a common adhesive such as an epoxy adhesive. In addition to the grooves 4 and 5 that are the starting points of breakage when the floor material is removed, a back groove 13 is provided on the back surface of the wooden base material 1 to weaken the rigidity of the wooden base material 1 and improve sound insulation. It is formed (FIG. 8). In this example, a plurality of back grooves 13 extending in the short direction of the flooring 11 are formed at predetermined intervals. However, back grooves extending in the longitudinal direction may be formed. Back groove formation is well known in the art and is not directly related to the subject matter of the present invention, and will not be described in further detail.

  FIG. 9 is a sectional view showing the construction of the floor material 11. The floor materials 11 and 11 are arranged on the base material 6 to which the adhesive 8 (FIG. 10) is applied so that the male fruit 2 and the female fruit 3 are fitted. It is connected through. This construction state is also substantially the same as in the case of Example 1, and each flooring 11 is fixed to the base material 6 with a nail 7 or the like driven from the vicinity of the base of the protrusion of the male base 2 of the wooden substrate 1. Since the adhesive used when the flooring 11 is applied to the base material 6 is the same as that described in the first embodiment, the description thereof is omitted.

  The removal work when the floor material 11 constructed as shown in FIG. 9 is damaged or damaged and needs to be removed for replacement with a new floor material is performed in the same manner as the above-described embodiment. Can do. That is, as shown in FIG. 10, the floor material 11 to be removed (floor material 11 in the center of FIG. 10) is pulled upward using a suction cup or the like, so that the portion including the male 2 from the grooves 4 and 5 14 is broken, and the raised flooring 11 is obliquely pulled up to the male 2 side, so that the female 3 is engaged with the male 2 of the adjacent flooring on the opposite side (the flooring 11 on the right side of FIG. 10). The flooring 11 can be removed by pulling out.

  The flooring 11 is a soundproofing flooring material in which a cushioning material 12 is adhered to the back surface of a woody base material 1 such as MDF, and a back groove 13 extending in the short direction is formed on the back surface of the base material 1 at a predetermined interval. A plurality are formed. For this reason, the groove | channel 4 extended in a longitudinal direction will be orthogonal to the back groove | channel 13, and the lower part of the male 2 side from the groove | channel 4 will be divided | segmented into several divisions by the back groove | channel 13 (FIG. 8). Therefore, when the flooring 11 is pulled up at the time of detachment, breakage occurs in each section, and it can be broken even with a slight pulling force, thereby further facilitating the removal.

  Then, the adhesive 8 and the double-sided tape remaining on the surface of the floor base 6 at the removed location, and the fragments of the floor material 11 generated when the floor is removed are removed using a spatula or the like. Further, since the male fruit 2 included in the broken part 14 is left in a state of being fitted to the female fruit 3 of the adjacent floor material 11 (the floor material 11 on the left side in FIG. 10), the male fruit 2 is driven into the broken part 14. After the nail 7 is pulled out, it is pulled out from the female fruit 3 and removed. As described above, the adhesive at the time of flooring construction is usually applied to the base material 6 in the central region excluding the peripheral portion, and the adhesive 8 is not applied to the back surface of the fractured portion. The removal of the broken portion 14 is easy.

  As a flooring material to be constructed in place of the removed flooring material 11, a flooring material 15 having a female real part shape as illustrated in the lower part of FIG. 11A can be used. The floor material 15 for replacement has the female lower projection 3b of the floor material 11 cut out in advance. In the example of FIG. 11A, the female lower projection 3b is cut out by inserting a blade as shown by a dotted line upward from the position of the back surface 1b of the base material along the back 3a of the female 3. As a result, a space 3d is formed below the remaining female upper protrusion 3c.

  As shown in FIG. 11 (b), the flooring 15 is coated with an adhesive on the surface of the floor base 6 smoothed by removing the adhesive 8 and the like after the flooring 11 is removed. After applying adhesive also to the upper surface of the protrusion of the male 2 of the existing floor 11 adjacent to the right side of the figure, the existing floor 11 of the male 2 (not shown in FIG. 11B) is adjacent to the left side. It is constructed by mounting the female upper protrusion 3c so that the male fruit 2 of the existing floor material 11 adjacent to the right side is accommodated in the space 3d after the female lower protrusion 3b is cut off. can do.

  Since the floor material 15 is constructed by cutting the female bottom projection 3b fitted below the male body 2 in advance, further damage or damage occurs after the construction, and the floor material 15 is replaced with a new floor material. If it is necessary to remove the male fruit 3 side, the male fruit 2 can be easily removed simply by pulling the male fruit 2 out of the fitting with the female fruit 3 of the left adjacent existing flooring 11.

  In FIG. 10, when the floor material 11 to be removed is pulled up, the base material portion 1 c is broken substantially horizontally from the height position of the back surface 4 a of the grooves 4, 5, and the base portion 1 c is located above the broken portion 14. Although shown to remain in the protruding state, the broken state is not limited to this. In some cases, the base material portion 1c may be ruptured so as not to be left by tearing substantially upward along the side surface 4b of the grooves 4 and 5. Even in such a case, the nail 7 driven into the broken portion 14 can be pulled out and easily pulled out from the female fruit 3 as described above.

  In the above description, the figure which shows the cross section of the flooring 11 in the transversal direction about the operation | work which removes the flooring 11 and the operation | work which constructs the flooring 15 for replacement | exchange in the space of the removed flooring 11 (FIG. 10, FIG. 11 (b)), it goes without saying that the same operation is also performed in the longitudinal section of the flooring 11. That is, in the same manner as described above and shown in FIG. 10, the male 2 side extending in the short direction of the flooring 11 is also pulled up to break the portion including the male 2 from the groove 5, The flooring 11 is removed by pulling 3 out of the mating with the male 2 of the adjacent flooring. Further, in the same manner as described above and shown in FIG. 11B, the male fruit 2 extending in the short direction of the replacement flooring 15 is changed to the female fruit 3 of the existing flooring adjacent to one side in the longitudinal direction. The replacement floor material 10 is constructed such that the female actual upper protrusion 3c is fitted over the male fruit 2 of the existing floor material 1 adjacent to the opposite side in the longitudinal direction.

  In FIG. 12, as a flooring according to still another embodiment of the present invention, grooves 4 and 5 are formed on the two sides of the solid 2 on the same side as the flooring 1 of Example 1 (FIG. 1). The flooring 16 is also shown in which similar grooves 17 and 18 are formed on the other two sides of the female fruit 3 side. Since the grooves 17 and 18 are formed except that they are the same as the flooring material 1 of the first embodiment, the same or corresponding portions or elements are denoted by the same reference numerals and their detailed description is omitted.

  The groove 17 extends over the entire length in the longitudinal direction of the flooring 16 at a position of 2.0 (preferably 8.5) to 15.5 mm from the back 3a of the female 3 to the male 2 side. Similarly, the groove 18 extends over the entire length in the short direction of the flooring 16 at a position of 2.0 (preferably 8.5) to 15.5 mm from the back part 3a of the female fruit 3 to the male fruit 2 side. (FIG. 13). The grooves 17 and 18 are formed to a depth that is not less than the height of the lower protrusion 3b of the female fruit 3 and does not reach the lower surface of the upper protrusion 3c from the floor material rear surface 16b to the front surface 16a ( FIG. 12). The groove depth is generally in the range of 1.5 to 8 mm. For example, the grooves 17 and 18 are assumed to have a depth of 2.5 mm for a 6 mm thick floor material and 5.5 mm for a 12 mm thick floor material. It is formed. The widths of the grooves 17 and 18 are about 1 to 5 mm. The shape of the grooves 17 and 18 is not particularly limited, and may be a U-shaped cross section, a V-shaped cross section, or a V-shaped sharpened inner part of the cross-section. .

  FIG. 14 is a sectional view showing the construction of the flooring 16, where the flooring 11, 11 is placed on the base material 6 coated with an adhesive (not shown) to fit the male fruit 2 and the female fruit 3. It is connected through. This construction state is also substantially the same as in the case of the first embodiment, and each flooring 16 is fixed to the base material 6 with a nail 7 driven from the vicinity of the base of the protrusion of the male 2. Since the adhesive used when the flooring 16 is applied to the base material 6 is the same as that described in the first embodiment, the description thereof is omitted.

  A removal method in the case where the floor material 16 constructed as shown in FIG. 14 is damaged or damaged and needs to be removed for replacement with a new floor material will be described with reference to FIG. Grooves 4 and 5 are formed on the two adjacent sides of the males 2 and 2, and grooves 17 and 18 are formed on the other two sides of the females 3 and 3. Therefore, a removal method slightly different from that in the first and second embodiments is used. That is, as shown in FIG. 15, the floor material 16 to be removed (floor material 16 in the center of FIG. 15) is pulled up substantially vertically, and the portion 9 including the male fruit 2 from the grooves 4 and 5 on the male fruit 2 side. The floor material 16 is removed by breaking the portion 19 including the lower protrusion 3b of the female fruit 3 from the grooves 17 and 18 on the female fruit 3 side. The operation of pulling up the flooring 16 substantially vertically includes, for example, attaching suction cups to a plurality of places (for example, four places close to both ends in the longitudinal direction and the short side) of the flooring surface 16a, and simultaneously pulling up the suction cups vertically. Can be done.

  After removing the flooring 16 in this way, the adhesive, double-sided tape, etc. remaining on the surface of the floor base 6 at the removed location, and fragments of the flooring 1 generated when the flooring 16 is removed, such as a spatula, etc. To remove. Further, the broken portions 9 and 19 of the removed flooring 16 are removed. As described above, the broken part 9 on the male fruit 2 side is removed from the female fruit 3 of the adjacent flooring (the flooring 16 on the left side in FIG. 15) after removing the nail 7 driven into the broken part 9. Remove by pulling. The broken part 19 on the female fruit 3 side is left in a state of being sandwiched between the lower part of the protrusion of the male fruit 2 of the adjacent floor material (floor material 16 on the right side of FIG. 15) and the floor base 6. Remove with a spatula. Since it is common that an adhesive is not applied to the base material 6 portion corresponding to the rupture portions 9 and 19, the removal of the rupture portions 9 and 19 is relatively easy.

  As the floor material to be constructed instead of the removed floor material 16, the floor material 10 having a female real part shape as illustrated in the lower part of FIG. 6A in Example 1 can be used. This replacement flooring 10 must be constructed so as to be fitted from above between the existing flooring 16 and 16 adjacent to both sides of the removed flooring 16 (the flooring 16 and 16 on the right and left sides in FIG. 15). Therefore, the female lower projection 3b is cut in advance, and a space 3d is formed in this portion. Since the construction of the replacement flooring 10 and the replacement when further necessary thereafter are the same as described in the first embodiment, the description thereof will be omitted.

  In this embodiment, when the floor material 16 is pulled up substantially vertically upward as described above to break the male fruit 2 side and the female fruit 3 side at once and remove the floor material 16, the mating with the male fruit 2 is achieved. An unreasonable force is not applied to the female 3 of the adjacent flooring (floor 16 on the left side of FIG. 15) and the male 2 of the adjacent flooring (floor 16 on the right side of FIG. 15) mated with the female 3 There is an advantage that the work can be smoothly performed without damaging or destroying the actual fruit 2 or 3.

  However, also in this embodiment, one of the four sides of the flooring 16 to be removed (flooring 16 in the center of FIG. 15) is removed in substantially the same manner as in the case of removing the flooring 1 and 11 in Examples 1 and 2. And then pulling up diagonally upward to break either the male fruit 2 side or the female fruit 3 side, and then removing residual adhesive or flooring debris, and removing the other side fruit on the adjacent flooring The removal work may be performed by pulling out from the fruit. In this case, the work of pulling out the female fruit 3 from the male fruit 2 of the adjacent floor material (the floor material 16 on the right side of FIG. 15) after breaking the male fruit 2 side is described and illustrated in the first and second embodiments (FIG. 5 and FIG. 10), the description is omitted. When the female fruit 3 side is broken, the broken female fruit 3 side is tilted while being pulled up, and the male fruit 2 is pulled out from the female fruit 3 of the adjacent floor material (the floor material 16 on the left side of FIG. 15). It ’s fine.

  In the removal of the flooring 16, when the male 2 side and the female 3 side are broken at once (FIG. 15) and only the female 2 side is broken, the adjacent flooring (the flooring on the right side of FIG. 15) is used. 16) Since the broken part 19 remains below the protrusion of the male 2, it must be removed, but it is not always necessary to remove the broken part 19, and when the replacement flooring 10 is constructed. In addition, it is practically sufficient to remove the broken portion 19 so that it does not get in the way (in other words, the portion remaining after removal is completely accommodated in the space 3d).

  FIG. 16 shows a flooring according to still another embodiment of the present invention. The flooring 1 has substantially the same configuration as the flooring 1 according to the first embodiment (see FIG. 2 in particular), but extends over the entire length of the flooring 1 in the longitudinal direction and over the entire length of the lateral direction. The extending groove 5 is different in that the formation positions of the males 2 and 2 from the projecting roots are different. For example, in the flooring 1 using a 6 mm thick MDF as a substrate, the groove 4 extending in the longitudinal direction is formed at a position 11 mm from the root of the protrusion of the male 2, and the groove 5 extending in the short direction is formed by the protrusion of the male 2. In the flooring 1 which is formed at a position of 14.5 mm from the base and uses a 12 mm thick plywood as a substrate, the groove 4 extending in the longitudinal direction is positioned at a position of 9.5 mm from the base of the protrusion of the male 2 in the short direction. The extending groove 5 can be formed at a position of 13 mm from the base of the male projection. Thus, if the formation position of the grooves 4 and 4 is within the range of 2.0 (preferably 8.5) to 15.5 mm from the base of the protrusion of the male 2, the formation position of the groove in each direction is changed. May be. The AA cross section is represented in the same manner as in FIG.

  FIG. 17 shows a flooring according to still another embodiment of the present invention. In the flooring 1 according to Example 1 and Example 4, the grooves 4 and 5 are formed at positions of 2.0 to 15.5 mm from the bases of the protrusions of the two males 2 and 2 adjacent to each other on the back side. On the other hand, in the floor material of this embodiment, in addition to the grooves 4 and 5, a groove 18 extending along the female fruit 3 extending in the short direction is formed. The difference is that three grooves 4, 5 and 18 are formed on the back surface. The groove 18 is formed at a position of 2 to 15.5 mm, preferably 8.5 to 15.5 mm from the base of the protrusion of the male 2 toward the opposing female 3. The flooring material of this embodiment is a modified example of the flooring material of Example 1 or Example 4. In addition to the grooves 4 and 5 on the male fruit 2 side, a groove 18 is also formed on one female fruit 3 side, and the three-way It is equivalent to what was made into the groove | channel, and also according to another view, as a modification of the flooring material of Example 3, the groove | channel 17 extended along the fruit 3 extended in the longitudinal direction from the flooring material of Example 3 is shown. This is equivalent to a three-way groove by omitting. In addition to the grooves 4 and 5, a groove 17 (FIG. 13) extending along the female fruit 3 extending in the longitudinal direction may be formed to form a three-way groove.

  Like the flooring material of this embodiment or Embodiment 3, in addition to the grooves 4 and 5 on the male fruit 2 side, grooves 17 and 18 are also formed on the female fruit 3 side to form a three-way groove (Example 5) or a four-way groove. When the groove (Example 3) is formed, when the floor plate 1 is to be removed, the tip portion 9 (FIGS. 5 and 15) is broken from the grooves 4 and 5 on the male 2 side and the female 3 side Since the tip portion 19 (FIG. 15) including the lower protrusion 3b can be broken from the groove 17 and / or the groove 18, the flooring can be easily removed with a smaller force.

  In this embodiment, a specific removal operation when the floor material 1 constructed as shown in FIG. 4 is damaged or damaged and needs to be removed for replacement with a new floor material. A description will be given with reference to FIGS.

  For this removal operation, a locking jig 20 as shown in FIG. 18 is used. This locking jig 20 is formed into a shape having a space 21 in the center of the back surface side, for example, by cutting and bonding a 12 mm thick plywood and having a space 21 in the center of the back surface side. It is possible to procure on-site using surplus plywood at the site. The locking jig 20 is placed near the corners of the two sides 1d and 1e along the males 2 and 2 of the flooring 1 to be removed, and fixed to the flooring 1 with screws 22. (FIGS. 19 and 20). At this time, the screw 22 may be driven to a depth that penetrates the floor material 1 and slightly (about 0 to 2 mm) into the base material 6.

  Then, a tool 23 such as a bar is inserted into the space 21 in the locking jig 20 attached to the surface of the flooring 1, and the flooring 1 is pulled up in the manner of an insulator (FIGS. 21 and 22). At this time, it is preferable to place the contact plate 24 at a location to be a fulcrum so as not to damage the floor material surface other than the floor material to be removed. Since the locking jig 20 is firmly attached to the flooring 1, the pulling operation using the tool 23 gradually raises the grooves 4 of the males 2, 2 on the back side along the sides 1 d and 1 e. The portion 9 on the tip side from 5 is broken. When the three-way groove is formed as in the fifth embodiment or when the four-way frame is formed as in the third embodiment, the floor material is smoothly lifted and the male front end portion 9 is extended over the entire length of the sides 1d and 1e. Breaking can be performed.

  In addition, the place which fixes the jig | tool 20 for latching is near the corner | angular part of the edge | sides 1d and 1e in which the males 2 and 23 are formed in the flooring 1, and a male front-end | tip part by the raising operation | work in that part 9 is set so as to be most easily broken, but is generally positioned to leave about 15 mm from sides 1d and 1e. Similarly, when the four-sided frame is formed as in the third embodiment, the locking jig 20 is fixed near the corner portions of the female berries 2 and 2, and the male tip portion 9 is gradually broken from the corner portion. The female tip 19 can then be broken. Alternatively, as described with reference to FIG. 15 in the third embodiment, when the floor material 1 to be removed is pulled up directly and the male and female parts 9, 19 are simultaneously broken. Even if one locking jig 20 is attached to the center of the surface of the flooring material or a plurality of locking jigs 20 are attached along the longitudinal direction of the flooring material, the flooring material can be pulled up. good.

  The above-described removal operation is a preferred embodiment, but is not necessarily limited thereto. For example, a method in which one or a plurality of suction cups are attached to the corners or adjacent locations of the male formation sides 1d and 1e of the floor material to be removed, and the floor material is pulled up using the reduced pressure suction force. Can also be adopted.

DESCRIPTION OF SYMBOLS 1 Floor material or base material 1a Front surface 1b Back surface 1c The part which remains after a fracture | rupture 1d, 1e Male formation side 2 Male fruit 2a Projection upper surface 3 Female fruit 3a Depth 3b Lower projection 3c Upper projection 3d After lower projection cutting Space 4 breakage groove provided near the male (longitudinal (first) groove)
4a Back surface 4b Side surface 5 Breaking groove provided in the vicinity of the male (the first groove extending in the short direction)
6 Base material 7 Nail 8 Adhesive remaining on the surface of the base material after the floor material is removed 9 Broken part (male side)
10 Floor material for replacement 11 Floor material 12 Cushion material 12 'Broken cushion material portion 13 Back groove 14 Broken portion (male side)
15 Replacement floor material 16 Floor material 16a Front surface 16b Back surface 16c A portion 17 remaining after the fracture 17 A fracture groove provided near the female body (second groove extending in the longitudinal direction)
18 Breaking groove (second groove extending in the short direction) provided near the female fruit
19 Broken part (female side)
20 Locking jig 21 Space 22 Mounting screw 23 Tool 24 Batter plate

Claims (8)

In the floor material having a substantially rectangular shape in plan view in which a male and a female are formed on two adjacent sides, a position of 2.0 to 15.5 mm from the root of the protruding portion of the males on the two adjacent sides to the female side The flooring is characterized in that a groove is formed from the back side to the front side. 2. The flooring according to claim 1, wherein each of the grooves is formed to a depth within a range of ± 1.5 mm from a height position of the upper surface of the male protrusion. In the floor material having a substantially rectangular shape in plan view in which a male and a female are formed on two adjacent sides, a position of 2.0 to 15.5 mm from the root of the protruding portion of the males on the two adjacent sides to the female side The first groove is formed from the back side of the floor material to the front side, and at least one of the other two adjacent sides from the rear of the female body to the male side is 2.0 to A floor material, wherein a second groove is formed from the back surface side of the floor material toward the surface at a position of 15.5 mm. The flooring according to claim 3, wherein the first groove is formed at a depth within a range of ± 1.5 mm from the height position of the upper surface of the male protrusion. The said 2nd groove | channel is formed to the depth to the height which is more than the height of the lower protrusion which forms a female fruit, and does not reach the lower surface of an upper protrusion. 4. The flooring according to any one of 4. A method of removing one flooring material after the flooring material according to claim 1 or 2 is applied to a base material while being connected through fitting between a male fruit and a female fruit, and the flooring material to be removed is pulled upward. Thus, the floor material is removed by breaking the portion including the male from the groove and removing the floor material. A method of removing one floor material after constructing it on a base material while connecting the floor material according to any one of claims 3 to 5 through fitting between a male fruit and a female fruit, the floor material to be removed By pulling upward, at least one of the portion including the male fruit from the first groove or the portion including the female lower protrusion from the second groove is broken, and the floor material is removed. A method of removing the flooring that is characterized. The operation of pulling up the floor material to be removed is performed by attaching a locking jig to the surface of the floor material, and locking the tool to the locking jig and pulling up the floor material. The method for removing a flooring according to claim 6 or 7.

Images