JP2002004552A - Floor material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a loosely or freely installed floor material enabling the accurate execution of work without generating a step height or a clearance between the floor materials adjoining to each other in longitudinal and lateral directions. SOLUTION: A female tongue part 2 having a fitting groove part 2d opened upward in its top surface is installed in the end part on the side of one long side of a rectangular floor-material main body 1, and a male tongue part 3 having a downward projection part 3c capable of being engaged with the groove part 2d in its under surface is installed in the end part on the side of the other long side thereof so that the fitting of the tongue parts 2 and 3 of the adjacent main bodies 1 and 1 can prevent a lift and the step height from mutually generated and the engagement of a fitting groove part 2a and the projection part 3c can regulate a width-direction displacement to eliminate the generation of the clearance. Upward and downward locking hooks capable of being engaged with each other are installed in both end parts, respectively, on the side of the short side of the main body 1 for the purpose of enabling the fitting of the tongue parts 2 and 3 and a coupling between the main body 1 and 1 ranging perpendicularly with respect to the tongue parts 2 and 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flooring material to be laid on a floor without using nails or an adhesive.

[0002]

2. Description of the Related Art Conventionally, as a floor material to be installed on a floor surface of a floor base panel such as plywood or a floor base material such as a concrete slab, a male part is formed on one end face of a floor material mainly formed in a rectangular shape. A structure in which the male part is formed on the other end surface with a female part to which the male part can be fitted is widely known. It is only configured that the side end faces are actually joined by the male and female real parts, so even if they are joined, there is no restriction on the direction in which the floor materials come into contact with and separate from each other along the floor base surface. Therefore, gaps and steps are likely to occur between adjacent flooring materials due to variations in the skills of the workers and the accuracy of the construction surface, and it is difficult to perform the construction with high accuracy.

[0003] For this reason, the present applicant has filed a Japanese Patent Application No. Hei 4-31.
A flooring as described in No. 7769 was developed. That is, this flooring is provided with a groove that opens horizontally and a groove that opens vertically downward at the distal end surface and the base lower surface of one side end at both side ends of the flooring material that are parallel to each other. And an upper ridge engageable with the vertically downwardly-opening groove and the horizontally-opening groove are fitted to the lower end portion and the base end surface of the other side end portion. A groove formed in the horizontal direction when the male and female real parts of the flooring material are joined to each other at the time of construction. In addition to restricting the occurrence of displacement in the vertical direction due to engagement with the ridge, the displacement in the horizontal direction is restricted by the fitting of the groove that opens vertically downward and the upward ridge.

[0004]

However, in such a structure, when the floor material is laid on the floor base surface without nailing or bonding, the displacement between the two mutually parallel side ends is restricted. Even if it can be done, the other mutually parallel end faces can only be butted against each other without any restriction, so that sliding between the floor base surface and the floor plate due to horizontal external force due to walking or earthquake occurrence etc. In addition, there is a problem that a gap is generated between the butted end surfaces due to expansion and contraction of the floor plate itself due to moisture absorption / release, and a precise floor cannot be obtained.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to have a structure which does not cause displacement in any of the front, rear, left and right directions with respect to a floor base material. In providing flooring.

[0006]

In order to achieve the above-mentioned object, a flooring material according to the present invention comprises a flat square-shaped flooring material having a constant thickness at one of two mutually parallel end surfaces at one end surface. The upper portion of the upper and lower horizontal ridges protruding forward from the deep bottom of this groove is formed by engraving the concave portion inward at a fixed depth to form a forwardly facing groove. The end of the ridge is cut off by a predetermined width to reduce the protruding length of the ridge, and the upper surface of the lower ridge is raised upward toward the front of the protruding end surface of the upper ridge. A female part formed by forming a fitting groove part opened in the female part is provided on the other end surface with a projection length substantially the same as or slightly shorter than the upper protruding ridge part of the female part. The ridge that is formed to a thickness that can fit into the groove that opens And a notch having an inverted L-shaped cross section with a width substantially equal to the protrusion width of the lower protrusion of the female part is provided on the lower surface side of this protrusion. In the middle of the lower surface of the strip, there is provided a male part formed by projecting an engaging ridge that can be fitted into the fitting groove of the female part downward, and further, the other of the floor material main body On both end surfaces parallel to each other, an upward locking hook formed by providing a locking ridge at the tip of a notch step whose upper surface is cut out into an L-shaped cross section,
Downward locking hooks each having a locking groove formed in a shape engageable with the locking ridge are provided at the base end of the notch whose lower surface is cut in an inverted L-shaped cross section. Having the structure.

[0007]

When laying a floor material having the above structure on a floor base material without using nails or an adhesive, a real part adjacent to a right angle exposed at the corner of the already laid floor material row. And hooks, that is, the right angles of the floor material to be laid next to the female part and the upward locking hook provided on the rear end face of the floor material on the front row side and one end face of the floor material on the rear row side during laying, respectively. In order to fit the male part and the downward locking hook adjacent to each other, the male part of the floor material to be laid is turned obliquely downward and the male part is attached to the rear end face of the floor material in the front row. When the floor material is gradually laid down from this state, the engaging ridge provided on the male part is gradually inserted into the fitting groove formed on the female part. A downward locking hook provided on an opposite end surface of the floor material while being fitted to an upward locking hook provided on one end surface of the existing floor material on the front row side. Click is the construction while gradually fitted.

After the construction, the mated male and female real parts restrain the floor material from being displaced in the vertical direction such as floating, and the male and female real parts are engaged with each other by the mutually engaged grooves and ridges. The delusion in the front-rear direction is restrained, and furthermore, there is no possibility that a gap may be generated by mutually restraining the occurrence of displacement in the left-right direction due to the engagement of the upward locking hook and the downward locking hook.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
1 is a rectangular flooring material mainly having a constant width and length, which is made of a wood material such as plywood, particle board, and MDF having a certain thickness, and having both end surfaces on the long side parallel to each other as front and rear end surfaces. A male part 3 is provided on the front end face, and a female part 2 is provided on the rear end face. On the other hand, an upward locking hook 4 is provided on one side end face with both end faces on the short side parallel to each other being left and right end faces. On the other side end surface, a downward locking hook 5 having a shape engageable with the upward locking hook 4 is provided.

The structure of the male and female real parts 2, 3 and the upward locking hook 4 and the downward locking hook 5 will be specifically described.
As shown in FIG. 2, the female part 2 is formed by engraving a constant thickness portion at the center of the front end face of the floor material main body 1 inward from the front end face by a certain depth, and is formed in a forward direction. The upper and lower horizontal ridges 2b and 2c, which are formed of open grooves 2a and protrude forward from the bottom of the grooves 2a, cut off the front ends of the upper ridges 2b by a predetermined width to form the protrusions. The protrusion length of the ridge portion 2b is formed short, and a fitting groove portion 2d opened upward toward the front side of the protruding end surface of the upper ridge portion 2b is formed at the center of the upper surface of the lower ridge portion 2c. It is formed.

The male part 3 extends horizontally at the center of the rear end face of the floor material main body 1 to the rear with substantially the same protruding length as the upper ridge 2b of the female part 2 or a slightly shorter protruding length. The projecting ridge 3a is formed so that the thickness of the projecting ridge 3a can be fitted into the horizontal groove 2a of the female section 2 and the lower surface side of the projecting section 3a is the female section. 2 has a width substantially equal to the width of the protrusion of the lower protruding portion 2c, and is notched in an inverted L-shaped cross section. An engaging projection 3c that can be fitted into the fitting groove 2d is provided so as to project downward.

Further, on the short sides parallel to each other of the floor material main body 1, upward locking hooks 4 provided on one side end surface are provided.
As shown in FIG. 3, a notch stepped portion 4a is formed by notching the upper half of one end of the floor material main body 1 by a predetermined length in an L-shaped cross section over the entire width. By forming a groove 4b reaching the appropriate depth from the upper surface at the base end of the notch step 4a, a locking ridge 4c is formed at the front end,
The downward locking hook 5 provided at the other side end is formed by cutting the lower half of the other side end of the floor material main body 1 into a portion having substantially the same length as the notch size of the notch step 4a and extending over the entire width. A downward step 5a is formed by notching in an inverted L-shape, and a locking groove 5b reaching an appropriate depth upward from the lower surface at the base end of the step 5a.
And a locking ridge 5c is formed at the tip.

The procedure for constructing the floor material thus constructed on the floor base material A will be described. As shown in FIGS. 4 and 5, the floor material main bodies 1 and 1 have an upward locking hook 4 facing each other. In the width direction, as shown in FIG. 6, the front and rear opposing floor materials 1, 1 are attached to the ends of the long sides in the width direction as shown in FIG. 6. The male and female real parts 2 and 3 that are formed are laid in a state of being sequentially connected by engaging with each other.

At this time, the floor material main body 1 is laid in series in the length direction, and then the floor material main body 1 is laid in the next row. Therefore, the floor material main body 1 in the front row already laid is provided. 1 and an upwardly facing female member exposed on one side end side of the floor material main body 1 laid in the next row connected to the female member portion 2 at right angles to the exposed rear end long side end portion. The floor material main body 1 is laid by engaging the male part 3 on the long side of the front end of the next floor material main body 1 and the downward locking hook 5 on the other side end with the stop hook 4 respectively. Things. As described above, while the female real part 2 of the front row-side floor material main body 1 already laid and the upward locking hook 4 of the next row side floor material main body 1 form a right-angled corner, the floor material main body 1 is sequentially formed. 1 is laid without using nailing or an adhesive.

First, as shown in FIGS. 4 to 6, the laying operation is carried out in a state where the floor material main body 1 to be laid is inclined obliquely downward in the width direction so that the male part 3 has a downward inclined end. The protrusion 3a of the male part 3 is aligned with the opening end of the groove 2a opening toward the front of the female part 2 in the floor material main body 1 on the front row side, and the longitudinal direction is along the groove 2a. Downward hook 5 connected to the male part 3 at right angles to the short side.
Is opposed to the upward hook 4 of the floor material main body 1 laid first.

In this state, while the floor material main body 1 to be laid is tilted in the horizontal direction, the ridge 3a of the male part 3 is attached to the existing floor material main body 1.
When pushed into the groove 2a of the female part 2 of the female member 2, the front end locking ridge 5c of the downward locking hook 5 is inserted from the front end side into the groove 4b of the upward locking hook 4 of the floor material main body 1 laid first. The engagement ridge 3c projecting from the lower surface of the male part 3 is fitted into the fitting groove 2d of the female part 2 while gradually fitting toward the end side.
In this state, the floor material main body 1 is laid on the floor base material A.

The above-mentioned laying operation is repeatedly performed to obtain the floor base material A.
A floor composed of a large number of floor material rows is constructed thereon, and after the construction, as shown in FIG. The vertical displacement such as lifting is restrained by the groove, and the groove 2d and the ridge 3c of the male and female real parts 2 and 3 which are engaged with each other restrain the delusion in the front-rear direction, as shown in FIG. In addition, the engagement between the upward locking hooks 4 and the downward locking hooks 5 prevents displacement in the left-right direction (the length direction of the row).

The floor material main body 1 in the above embodiment may be provided with an elastic layer such as a rubber layer having an appropriate thickness on the lower surface thereof, and a suitable decorative layer on the upper surface. Is also good.

FIGS. 9 to 13 show still another embodiment of the present invention, wherein the floor material main body 1 is made of a wooden material. Its upper half
1a is made of a wooden material, the lower half 1b is made of a flexible sheet, and both are integrally laminated and adhered. Since the shapes of the male and female real parts 2, 3 and the upward locking hooks 4 and the downward locking hooks 5 formed on the four end surfaces of the floor material main body 1A are the same as those of the floor material main body 1 shown in the above embodiment, they are detailed. Although the detailed description is omitted, as shown in FIGS. 10 and 11, the lower horizontal protrusion 2c and the fitting groove 2d, and the cutout 3b of the male part 3 are provided as shown in FIGS.
Is formed of a flexible sheet, and the entire upward locking hook 4 provided on the short side is formed of a flexible sheet. In addition, the opposing inner surface of the locking groove 5b of the downward locking hook 5 and the tip locking ridge 5c are formed of a flexible sheet. As the flexible sheet, a sheet material that can be elastically deformed together with flexibility, such as a rubber or elastic resin sheet, is used.

The construction method of this floor material main body 1A is the same as that of the above embodiment, but since the lower horizontal ridge 2c of the female real part 2 is formed of a flexible sheet, the female real part 2A is formed. When the male part 3 of the floor material main body 1A to be laid is fitted, the horizontal ridge 2c is compressed and deformed in accordance with the pressing force of the male part 3,
Can be smoothly fitted in the fitting groove 2d, and the male part 3 fitted in the groove 2a of the female part 2 is pressed upward by the elastic force of the horizontal ridge 2c. The upper surface is pressed into contact with the lower surface of the upper ridge 2b of the female part 2, and the floor material main body 1A,
The upper surface between 1A can be laid flush.

Similarly, the downward locking hook 5 can smoothly engage the hooks 4 and 5 while being compressed and deformed in response to the pressing of the upward locking hook 4.
In each of the above embodiments, the male and female real parts 2 and 3 are provided on the long sides of the floor materials 1 and 1A, and the locking hooks 4 and 5 are provided on the short sides. The hooks 4 and 5 may be formed with male and female real parts 2 and 3 on the short side, and the floor material main bodies 1 and 1A may be formed in a square.

[0022]

As described above, according to the flooring material of the present invention, one of the two parallel end surfaces of the flooring material formed into a flat rectangular shape has a center portion having a constant thickness at one end surface. The upper end of the upper horizontal ridge portion of the upper and lower horizontal ridge portions that are formed by engraving a predetermined depth toward the front and that open forward and project forward from the deep bottom of the groove. Is cut out to a predetermined width to reduce the protruding length of the protruding ridge, and is fitted on the upper surface of the lower protruding portion so as to open upward toward the front side of the protruding end surface of the upper protruding portion. A female part formed by forming a groove is provided, and the other end face has a projection length substantially the same as or slightly shorter than the upper protruding ridge of the female part, and the thickness is directed toward the front of the female part. A ridge that is formed to a thickness that can fit into the opened horizontal groove is projected horizontally and On the lower surface side of the ridge, a notch portion having a width substantially equal to the protrusion width of the lower ridge portion of the female real portion is provided, and an inverted L-shaped cross section is provided. A male part is provided by projecting a downwardly protruding engaging ridge part into the fitting groove part of the female part, and furthermore, on the other mutually parallel both end faces of the floor material main body. An upward locking hook formed by providing a locking ridge at the tip of a notch step whose upper surface is cut out into an L-shaped cross section, and a notch having an inverted L-shaped cross section on the lower surface. At the base end, there is provided a downward locking hook provided with a locking groove formed in a shape that can be fitted with the locking ridge, so that the female member mainly composed of the floor material in the front row already laid. The male part of the floor material to be laid next to the real part is fitted, and the floor material mainly laid in the next row connected at right angles to the female part. Tsu while engaging the downwardly locking hooks click can be laid flooring mainly sequential easily and accurately.

Further, the adjacent floor members can be prevented from being displaced in a vertical direction or a step due to floating or the like by the male and female real parts fitted to each other, and the grooves of the upwardly open openings of these male and female real parts engaged with each other. And the downwardly protruding ridge portion can reliably restrain the delusion in the front-rear direction, and furthermore, the engagement between the upward hook portion and the downward hook portion that are connected at right angles to the male and female real portions causes a lateral shift. Therefore, it is possible to always maintain an accurate construction state for a long period of time without causing a gap between floor materials adjacent to each other even by an earthquake or the like.

Further, if the grooves and the ridges and the upward hooks and the downward hooks of the male and female real parts which are engaged with each other are formed of a flexible material, they can be fitted and engaged while deforming at the time of construction. The workability can be further improved, and the flooring material can be given an appropriate cushioning property by imparting elasticity together with flexibility. In addition, the male and female real part and the hook part can be combined with each other. Due to the elastic engagement of the above, even if there is a slight unevenness in the floor base material or a variation in the construction technology, it can be absorbed and the floor construction with the same upper surface can be performed with high accuracy. Thus, the flooring material of the present invention is used as a flooring material to be laid on a flooring material without using nails or adhesives.
The construction can be performed accurately and easily without skill.

[Brief description of the drawings]

FIG. 1 is a plan view of a flooring material of the present invention,

FIG. 2 is an enlarged sectional view taken along line YY of FIG.

FIG. 3 is an enlarged sectional view of the XX line,

FIG. 4 is a simplified perspective view showing a construction state;

FIG. 5 is a perspective view, partially in section, for explaining an engagement state between the male and female real parts;

FIG. 6 is a perspective view showing a part of a cross section for explaining an engagement state between hooks;

FIG. 7 is a partial cross-sectional view of the laid state in which the male and female real parts of the adjacent floor material are engaged with each other,

FIG. 8 is a partial cross-sectional view showing a laid state in which hooks mainly including floor materials are engaged with each other;

FIG. 9 is a simplified plan view showing another embodiment of the present invention;

FIG. 10 is an enlarged sectional view taken along line YY of FIG.

FIG. 11 is an enlarged sectional view of the XX line,

FIG. 12 is a partial cross-sectional view of a laid state in which the male and female real parts mainly including floor materials are engaged with each other,

FIG. 13 is a partial cross-sectional view of a laid state in which hooks mainly composed of adjacent floor materials are engaged with each other.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Floor material main body 2 Female real part 2d Fitting groove part 3 Male real part 3c Engagement ridge part 4 Upward locking hook 4c Locking ridge part 5 Downward locking hook 5b Locking groove part

Claims (1)

[Claims] 1. A method in which a central constant thickness portion of one end face is inscribed inward at a constant depth on one of two mutually parallel end faces of a floor material main body formed in a plane quadrangular shape so as to be forward. The end of the upper ridge portion of the upper and lower horizontal ridge portion which is formed to face the open groove and protrudes forward from the deep bottom of the groove is cut off by a predetermined width to project the ridge portion. A female part is formed having a shorter length and a fitting groove that opens upward toward the front side of the protruding end face of the upper ridge on the upper surface of the lower ridge,
The other end face is formed to have a thickness that is substantially the same as the upper protruding ridge portion of the female real part or a slightly shorter protruding length, and has a thickness that can be fitted into a groove of the female real part that opens forward. The protruding ridge is horizontally protruded, and a notch having an inverted L-shaped cross section having a width substantially equal to the protruding width of the lower protruding ridge of the female part is provided on the lower surface side of the ridge. A male part formed by projecting a downwardly protruding engaging ridge that can be fitted in the fitting groove of the female part is provided in the middle part of the lower surface of the ridge formed by An upward locking hook formed by providing a locking ridge at the tip of a notch step portion whose upper surface is cut out into an L-shaped cross section on the other mutually parallel two end surfaces of the material main body, and a lower surface side having a reverse cross section. An L-shaped notch provided with a locking groove formed at a base end thereof so as to be fitted with the locking ridge. Flooring, characterized in that the come locking hooks are provided, respectively.