JP4487733B2 - Connecting structure of flooring - Google Patents

Description

  The present invention relates to a floor material connection structure for connecting floor materials such as flooring materials laid on a floor base.

  In the floor construction method in which a plurality of floor materials such as flooring materials are laid on the floor base, as shown in FIG. 12, adjacent floor materials (51) (51) are placed on the end surface of one floor material (51). Laying the floor material (51) (51) ... in order from the wall while fitting and connecting the provided male spring (52) and the female spring (53) provided on the other floor material (51) end face It is generally done. At this time, each floor material (51) is affixed to the floor base (54) with an adhesive, a double-sided tape, or the like, and a nail (55) is driven in and fixed to the male tongue portion.

  Thus, since the floor materials (51), (51) are conventionally firmly fixed to the floor base (54), when one floor material (51) is damaged, the floor material (51 ) Was difficult to replace only. That is, if one floor material (51) is forcibly removed from the floor substrate (54), the floor substrate (54) may be damaged at that time. In this case, replace the floor substrate (54). I had to do or repair. For this reason, in the worst case, all the flooring materials (51), (51), and the floor base (54) may have to be replaced.

  Further, when only one floor material (51) is to be removed, all the sane portions (52), (52),... Used for attaching the floor material (51) are cut off with a circular saw or the like and removed. And when installing a new flooring, it inserts in the clearance gap between flooring (51) (51) in the state which cut off the sunk part of the flooring, and installs it. Accordingly, at this time, the new flooring cannot be engaged with the adjacent flooring (51) (51) and cannot be nailed to the flooring. In order to do this, it was necessary to use an adhesive that could release harmful substances.

  Furthermore, it is possible to give up the replacement of the flooring for the above reasons, and to superimpose a new flooring on the original flooring. However, when the floor material interferes with the joinery, there is a drawback that it takes time and effort to cut the lower end of the joinery.

  On the other hand, in the structure shown in FIGS. 4 to 8 of Patent Document 1, connecting tools are respectively attached to a plurality of rails provided on the floor base, and floor materials are fitted between the connecting tools. The floor material is laid on the floor base. When fitting the flooring, expand the flooring so that the flooring is straightened from the folded state of the flooring along the groove provided in the center of the flooring. The end portion of this is engaged with and fitted into the connector.

  As described above, in the structure of Patent Document 1, each floor material is indirectly fixed to the floor base via the connection tool, and no adhesive or the like is used for the fixing. In this case, only one flooring can be easily removed. In addition, when installing a new floor material, the floor material bent along the central groove is fitted and attached so as to be straight, as in the case of newly installing the floor material.

JP 2003-213902 A

  However, in the above-described structure described in Patent Document 1, in order to lay the flooring, it is necessary to attach the connecting tool to the floor base in advance, and the rail for mounting the connecting tool is the dimension of the flooring. It is necessary to embed it in the floor foundation in a state where it is accurately positioned in advance so as to correspond to the above. Therefore, the workability at the time of newly installing the flooring material was poor as compared with the general flooring method in which the male and female springs are engaged.

  Moreover, in the structure of patent document 1, in addition to having to provide a groove | channel previously in the center of a flooring, the flooring bent along the center groove | channel is straightened at the time of the new installation and replacement | exchange of a floor board. Thus, there is a drawback that a complicated work such as engaging with a connecting tool while being spread is forced. Furthermore, since it is necessary to bend the flooring, it is not suitable for a hard flooring that cannot be bent. Furthermore, the bent portion of the floor material may be lifted from the floor base, resulting in unevenness, or by providing a groove in the floor material, the floor noise may easily occur.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a flooring connection structure that can solve the above-described problems and improve workability at the time of flooring replacement and flooring new installation.

In order to solve the above problems, the floor material connection structure according to the present invention connects the ends of the floor materials adjacent to each other via a connection tool, and the connection tool is driven or screwed in from above. A fixed portion fixed to the floor base by a fixing tool such as a nail, and a pair of engaging convex portions projecting laterally from the fixed portion and engaging with the engaging concave portions at the ends of both floor materials. In the state where the one engaging convex portion is engaged with the engaging concave portion of the one floor material end portion, the fixing portion exposed from the one floor material end portion can be fixed to the floor base by the fixing tool. In the connected state in which both the engaging convex portions are engaged with the engaging concave portions of the both floor material end portions, the connecting tool is covered by the both floor material end portions. A protrusion is formed on the engaging convex part of A barrier is formed that abuts against the protrusions in the connected state and restricts lateral movement of the flooring material, and further sinks into the ends of both flooring materials below the engaging projections in the connected state. A retaining portion that restricts the floor material from being pulled out and lifted is formed, and the engaging convex portion and the engaging concave portion due to the sliding movement of the floor material with respect to the coupling member fixed to the floor base The coupling protrusions and the engagement recesses by allowing the coupling fixture fixed to the floor base to be pushed from above the flooring material, respectively. The engagement convex part of the tool is elastically deformable .

  Furthermore, the notch for making the elastic deformation of an engagement convex part easy is formed between the engagement convex part and fixing | fixed part of the said coupling tool.

Furthermore, it is provided on both engaging convex portions of the connector, and is provided at a first inclined surface that moves away from the fixing portion as it goes downward, and at both floor material end portions, Floor material guide means comprising at least one of the second inclined surface that comes into contact with the first inclined surface when pushed from above is provided.

  In addition, an accommodation recess for accommodating the head of the fixture is provided on the upper surface of the fixture of the connector.

In the floor material connection structure according to the present invention, the connection tool for connecting the floor materials adjacent to each other is in a state in which one engagement convex portion is engaged with the engagement concave portion of one floor material end, The fixed part exposed from one end of the floor material can be fixed to the floor base. Therefore, when a flooring is newly installed on the floor base, the connecting tool can be fixed to the floor base while being engaged with one end of the flooring. In addition, it is not necessary to position the connecting tool in advance, and floor materials can be laid in order while positioning the connecting tool. In particular, when the connection tool is attached to the flooring in advance at the factory, etc., it is easy to install the flooring while connecting the flooring as in the conventional floor construction method that engages the male and female springs. Can do. In addition, in the connected state in which both of the engaging convex portions are engaged with the engaging concave portions of both floor material end portions, the connecting device is covered and hidden by both floor material end portions, and the fixture is exposed. Can be prevented. Further, in the connected state, the barrier of the engaging concave portion abuts against the protrusion of the engaging convex portion to restrict the movement of the floor material to the side, so that it is possible to prevent a gap between adjacent floor materials from being generated. it can. Further, in the connected state, the retaining portion at the end of the flooring material can sink under the engaging convex portion, and the flooring can be prevented from coming off or rising up. Furthermore, the engagement convex portion of the coupler can be elastically deformed, and the engagement convex portion can be elastically engaged with the engagement convex portion and the engagement concave portion by sliding movement of the flooring material or pushing from above. It can be easily performed while deforming. In particular, by forming a cut between the engaging convex portion and the fixing portion of the connector, the engaging convex portion can be easily elastically deformed.

Further, by providing the floor material guiding means, the floor material can be smoothly guided downward when the floor material is pushed in from above, and the replacement work of the floor material can be simplified.

Furthermore, since the accommodation recessed part for accommodating the head of a fixing tool is provided in the fixing part upper surface of a connection tool, it can prevent that the head of a fixing tool interferes with a flooring.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. As shown in FIG. 1, the flooring connection structure according to the embodiment of the present invention is configured such that adjacent flooring materials (1) and (1) are connected to each other at the ends of the flooring materials (1) and (1). It connects via the connector (2) engaged across a joint part.

  The connector (2) is a long material made of synthetic resin that can be elastically deformed. As shown in FIG. 2, the connector (2) has a fixed portion (3) fixed to the floor base (20) by, for example, nails (15), (15), and the fixed portion (3). A pair of engaging projections (4) and (4) projecting laterally from the fixed portion (3) is provided.

  A plurality of insertion holes (8), (8), for inserting the nails (15), (15), ... are formed in the fixing part (3) of the connector (2). These insertion holes (8), (8), ... are provided at intervals in the longitudinal direction. Further, the insertion holes (8), (8)... Are formed so as to penetrate the fixing portion (3) in the vertical direction.

  Further, on the upper surface of the fixing portion (3), there is a concave groove (9) as an accommodating recess for accommodating the heads of the nails (15), (15), which are inserted through the insertion holes (8), (8). It is formed along the longitudinal direction. However, the accommodating recesses are not necessarily groove-shaped, and may be counterbore holes corresponding to the respective insertion holes (8), (8).

  The engaging projections (4) and (4) are provided so as to project from substantially the upper half of the side surface along the longitudinal direction of the fixed portion (3). Projections (10) and (10) are formed along the longitudinal direction on the upper surface of the engaging projections (4) and (4), and the side surfaces of the engaging projections (4) and (4) are moved downward. And inclined surfaces (11) and (11) away from the fixed portion (3). Further, on the lower surface side of the engaging convex portions (4) and (4), the elasticity of the engaging convex portions (4) and (4) is provided between the engaging convex portions (4) and (4) and the fixing portion (3). A substantially V-shaped notch (12) (12) is formed to facilitate deformation.

  On the other hand, the flooring (1) is made of, for example, wood and is formed in a substantially rectangular shape as shown in FIG. As this flooring (1), as shown in FIG. 4, for example, a wooden base material (21) with a wooden decorative material (22) attached to the upper surface is used. Is not particularly limited.

  On the peripheral end portions (25) to (28) of the flooring (1), the engaging projections of the connecting tools (2), (2),... Are extended over the entire length of the respective peripheral end portions (25) to (28). .. Are formed as engaging portions with which the portions (4), (4),... Engage. Further, the laterally projecting portion located on the upper side of the engaging recesses (31), (31), is a covering portion (32), (33), which covers the couplers (2), (2), ... from above, The laterally protruding portion located on the lower side of the engaging recesses (31), (31) ... sinks into the lower side of the engaging projections (4), (4), ... of the couplers (2) (2). The retaining portions (34), (34) are provided. Further, the engaging recesses (31), (31) are connected to the engaging recesses (31), (31), by extending the tips of the covering portions (32), (33), downward. Barriers (37), (37), which are in contact with the projections (10), (10), etc. of the engaging projections (4), (4),.

  Here, the amount of lateral protrusion of the retaining portions (34), (34) is substantially equal over the entire circumference. On the other hand, for the covering portions (32), (33), etc., for example, the covering portions formed at one end portion (25) along the longitudinal direction of the flooring (1) and one end portion (27) along the short direction. (32) (32) is a covering portion (33) (33) formed on the other end portion (26) along the longitudinal direction of the flooring (1) and the other end portion (28) along the short direction. The amount of overhang to the side is smaller.

  More specifically, at one end (25) along the longitudinal direction of the flooring (1) and at one end (27) along the short direction, it is to the side of the retaining portions (34) and (34). Compared with the amount of overhang, the amount of overhang of the covering portions (32) and (32) to the side is slightly larger or substantially equal. On the other hand, at the other end portion (26) along the longitudinal direction of the flooring (1) and the other end portion (28) along the short direction, the retaining portions (34) and (34) project laterally. Compared with the amount, the amount of overhanging of the covering portions (33) and (33) to the side is remarkably large.

  Then, the covering portions (32), (32) of the one end portions (25), (27) of the flooring (1) are connected to the engaging recesses (31), (31) of the one end portions (25), (27). In the state in which one engaging convex part (4) of 2) is engaged, as shown in FIG. 1, only the upper surface of one engaging convex part (4) in the connector (2) is covered and fixed. The insertion holes (8), (8) of the part (3) are in a state where they are avoided so as not to cover the upper part. On the other hand, the covering portions (33) and (33) of the other end portions (26) and (28) of the flooring (1) are connected to the engaging recesses (31) and (31) of the other end portions (26) and (28). In the state in which the other engaging projection (4) of (2) is engaged, the upper surface of the other engaging projection (4) and the fixing portion (3) of the connector (2) are covered and fixed. The insertion holes (8), (8)... Of the portion (3) are covered up.

  The side surface of the retaining portion (34) is an inclined surface (39) that approaches the center of the flooring (1) as it goes downward. The inclination angle of the inclined surface (39) of the retaining portion (34) is formed slightly more gently than the inclination angle of the inclined surface (11) of the engaging convex portion (4) of the connector (2). Yes. The sloped surface (39) of the retaining part (34) and the sloped surface (11) of the engaging convex part (4) of the connector (2) constitute a floor material guiding means described later. The floor material guiding means is constituted by one of the inclined surface (39) of the retaining portion (34) and the inclined surface (11) of the engaging convex portion (4) of the connector (2). May be.

  Next, a method for connecting the flooring materials (1) and (1) using the above-described connecting tools (2), (2), will be described.

  The couplers (2), (2)... Are attached in advance to one of the floor materials (1) (1) adjacent to each other in a manufacturing factory or the like. When attaching the connecting tool (2), the engagement recesses (31), (31) of the one end part (25) along the longitudinal direction of the flooring (1) and the one end part (27) along the short side direction are used. Then, for example, a plurality of connectors (2), (2). As shown in FIG. 3, each connecting tool (2) has one engaging projection (4) slidably inserted from one end side in the length direction of the engaging recess (31) (31). This is attached to one end portions (25) and (27) of the flooring (1). However, you may make it perform attachment of the connection tool (2) with respect to such one flooring material (1) in a construction site.

  When laying the flooring (1) (1) on the floor base (20), first, one flooring (1) of the adjacent flooring (1) (1) is placed on the floor base (20). Install in a state of being positioned at a predetermined position. Thereby, the connector (2) attached to the flooring (1) is positioned with respect to the floor base (20). At this time, as shown in FIG. 5, the covering portion (32) of the flooring (1) does not cover the insertion holes (8), (8)... Above the fixing portion (3) of the connector (2). The insertion holes (8), (8), are exposed from the end of the flooring (1).

  Then, nails (15), (15), which are inserted from above into the through holes (8), (8), which are exposed in this way, are driven into the floor base (20), thereby connecting the connector (2) to the floor base (20 ). It is not always necessary to fix the connector (2) to the floor base (20) by driving nails (15), (15), but may be fixed by screwing or driving screws or other fixing tools. .

  Then, as shown in FIG. 6, the other adjacent flooring (1) is slid with respect to the connector (2) positioned as described above, and the other end of the flooring (1) is moved. The parts (26) and (28) are engaged. That is, the other floor material (1) is placed along the direction perpendicular to the length direction of the connector (2) so that the other end portions (26) and (28) of the floor material (1) are on the tip side. And the engaging recess (31) of the other end (26) (28) is engaged with the other engaging protrusion (4) of the connector (2).

  At this time, the projection (10) at the upper end of the other engaging convex portion (4) in the connector (2) interferes with the lower end of the covering portion (33) of the other flooring (1). As shown in FIG. 3, when the covering portion (33) of the floor material (1) slid and hits the protrusion (10) of the engaging convex portion (4), the engaging convex portion (4) becomes the protrusion (10). ) Is pressed down to the lower side of the covering portion (33) to be elastically deformed. Then, when the other floor material (1) is slid until its tip in the sliding direction comes into contact with one floor material (1), the other engaging convex part (4) of the connector (2) is elastically restored. Then, as shown in FIG. 1, the engaging convex part (4) is engaged with the engaging concave part (31) of the other floor material (1).

  Thereby, the ends of the floor materials (1) and (1) adjacent to each other are connected to each other via the connection tool (2). In this connected state, the connection tool (2) is connected to both floor materials ( 1) It is completely covered by the covering parts (32) and (33) of (1). At this time, the boundary between the floor materials (1) and (1) adjacent to each other is shifted from the position of the nails (15), (15)... Inserted through the connector (2). The upper portions of the heads of the nails (15), (15) are covered by the covering portion (33) of the other floor material (1).

  That is, in this connection structure of the flooring materials (1) and (1), the nail (15) (15) is connected to the connection tool (2) engaged with one of the flooring materials (1) adjacent to each other during construction. ) ... and can be fixed to the floor base (20), and when the adjacent flooring materials (1) and (1) are connected to each other, the connecting tool (2) used for the connection is completely covered. be able to.

  Further, in this connected state, the protrusions (10), (10) on the engaging projections (4), (4) of the connector (2) are in contact with the engaging recesses (31), (31) of the flooring (1). Since the movement of the flooring (1) (1) to the side is restricted by abutting against the barriers (37) and (37), there is no difference between the adjacent flooring (1) and (1). The gap is less likely to occur. Furthermore, since the retaining portions (34) and (34) of the flooring (1) and (1) are in a state of being under the engagement convex portions (4) and (4) of the coupling tool (2), The floor material (1) (1) is prevented from being pulled out or lifted upward.

  In this way, by using the couplers (2), (2), etc., the flooring materials (1), (1), etc. are sequentially installed on the floor base (20), so that the construction method using the conventional couplers is used. It is not necessary to embed a rail in advance in the floor base (20) or to accurately position the couplers (2), (2), etc. in the same way as in the conventional method of engaging the male and female rods. In addition, the flooring (1) (1) can be easily constructed.

  In the above, the floor materials (1), (1), are indirectly fixed to the floor base (20) through the connecting tools (2), (2), but such connection. In addition to fixing via the tools (2), (2), etc., a fixing tool such as a decorative nail is driven into the floor material (1) (1) from the top, and the floor material (20) 1) (1) may be directly fixed, and in this case, floor noise can be reliably prevented.

  Hereinafter, a method for exchanging a part of the flooring materials (1), (1), etc. in a state where the flooring materials (1), (1), etc. are constructed as described above will be described. Here, it is assumed that one piece of the flooring material (1) is damaged, and a case where only one damaged piece is replaced with a new flooring material (1) will be specifically described.

  In this case, first, as shown in FIG. 8, the damaged floor material (1) is cut with a circular saw or the like and divided into a plurality of block pieces (41) (41)... 41) Remove (41)… in order from the center. In the gap portion (45) generated by removing the floor material (1) in this way, as shown in FIG. 9, one of the engaging projections (4), (4) of the couplers (2), (2) is provided. Is overhanging.

  Then, as shown in FIG. 10, a new floor material (1) is moved upward with respect to the gap portion (45) surrounded by the engaging projections (4) and (4) of the couplers (2) and (2). The inclined surfaces (39) and (39) of the retaining portions (34) and (34) of the floor material (1) are pushed into the engaging projections (4) and (4) of the coupling tools (2) and (2). Abutting on the inclined surfaces (11) and (11), the engaging projections (4) and (4) are elastically deformed so as to be pressed toward the fixed portions (3) and (3). At this time, since the notches (12) and (12) are formed between the fixing portions (3) and (3) and the engaging convex portions (4) and (4) in the coupling tools (2) and (2), The joint protrusions (4) and (4) are easily elastically deformed.

  In this way, the engaging protrusions (4), (4) and the engaging protrusions (4), (4) are elastically deformed, and the engaging protrusions (4), (4), the inclined surfaces (11), (11), and the stopper are prevented from coming off. The floor material (1) is smoothly guided downward by the floor material guiding means composed of the inclined surfaces (39) and (39) of the portions (34) and (34), and the floor material (1) as shown in FIG. Is brought into contact with the upper surface of the floor substrate (20), the engagement projections (4) and (4) of the couplings (2) and (2) are elastically restored, and the engagement recesses (31) of the flooring materials (1) and (1) are recovered. ) Engages with (31). Thereby, the floor materials (1) and (1) adjacent to each other are connected by the connecting tool (2) in the same state as in the case of newly established as described above. Therefore, the flooring (1) can be attached by simply pushing it in from the top without bending the flooring as in the conventional method using a connecting tool, and the replacement work of the flooring (1) can be easily completed. be able to.

  In addition, when fitting a new flooring (1) as shown in FIG. 10, the inclined surfaces (11) and (11) of the engaging projections (4) and (4) in the couplers (2) and (2). And the inclined surfaces (39) and (39) of the retaining portions (34) and (34) of the flooring (1), but a lubricant is applied in advance to the inclined surfaces (11), (39). This may reduce friction.

  The present invention is not limited to the above embodiment, and it is needless to say that many modifications and changes can be made to the above embodiment within the scope of the present invention.

It is sectional drawing which shows the connection structure of the flooring which concerns on one Embodiment of this invention. It is a perspective view which shows a coupling tool. It is a perspective view which shows a flooring. It is the sectional drawing similarly. It is sectional drawing which shows the state which fixes a connection tool to a floor base. It is sectional drawing which shows the state which engages the other flooring with a connection tool. It is the sectional drawing similarly. It is sectional drawing which shows the state which cut | disconnected the damaged flooring. It is sectional drawing which shows the state which removed the damaged flooring. It is sectional drawing which shows the state which mounts a new flooring. It is sectional drawing which shows the state which replaced the flooring. It is sectional drawing which shows the connection structure of the conventional flooring.

Explanation of symbols

(1) Flooring
(2) Connecting tool
(3) Fixed part
(4) Engaging projection
(8) Insertion hole
(9) Concave groove (receiving recess)
(10) Projection
(11) Inclined surface of engaging projection (first inclined surface)
(12) Notch
(15) Nail
(20) Floor base
(31) Engaging recess
(33) Covering part of the other flooring
(37) Barrier
(39) Floor slope (second slope)

Claims (4)

A flooring connecting structure in which ends of adjacent flooring materials are connected to each other via a connecting tool, and the connecting tool is fixed to a floor base by a fixing tool such as a nail driven or screwed from above. A fixed portion, and a pair of engaging convex portions that project laterally from the fixed portion and engage with the engaging concave portions at the end portions of both floor materials, and the one engaging convex portion is the one floor material In the state of being engaged with the engagement concave portion of the end portion, the fixing portion exposed from the one floor material end portion can be fixed to the floor base by the fixing tool, and both the engagement convex portions are fixed to the both floors. In the connected state engaged with the engaging recesses of the material end portions, the both floor material end portions are configured to cover the connecting tool, and protrusions are formed on both of the engaging convex portions. In the engagement recess of the material end, the side of the flooring is in contact with the protrusion in the connected state A barrier that restricts the movement of the floor material, and further, a slip-out preventing portion that sinks below the engagement convex portion in the connected state and restricts the floor material from being lifted or lifted up at both ends of the floor material. Is formed, and the engagement convex portion and the engagement concave portion are engaged by sliding movement of the floor material with respect to the connection tool fixed to the floor base, and the connection tool fixed to the floor base is The engaging projections of the coupling tool are made elastically deformable so as to allow the engaging projections and the engaging recesses to be engaged with each other by pushing the floor material from above. A characteristic flooring connection structure. The floor material connection structure according to claim 1, wherein a notch for facilitating elastic deformation of the engagement protrusion is formed between the engagement protrusion and the fixing portion of the connector. Provided on both engaging projections of the connector, a first inclined surface that moves away from the fixed portion as it goes downward, and provided on both floor material end portions, from above the floor material. The floor material connection structure according to claim 1 or 2, further comprising floor material guide means comprising at least one of the second inclined surface that abuts on the first inclined surface when pushed . The flooring connection structure according to any one of claims 1 to 3, wherein an accommodation recess for accommodating a head of the fixture is provided on an upper surface of the fixture of the connector.

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