JP6893097B2 - Floor panel material - Google Patents

Description

The present invention relates to a floor panel material laid on a floor surface.

The floor panel material disclosed in Patent Document 1 is formed in a square shape in a plan view, and has protrusions and recesses on each side. Further, the floor panel material disclosed in Patent Document 2 includes only a protrusion on one side of the side portions facing each other, and only a recess on the other side. When the floor panel materials of Patent Documents 1 and 2 are laid on the floor surface, the side portions of the adjacent floor panel materials are butted against each other, and the protrusions and the recesses are engaged with each other.

Jikken No. 7-48854 (paragraphs [0012] to [0015], FIG. 2) Jitsuto No. 2517624 (Fig. 3)

In the floor panel material of Patent Document 1, when laid on the floor surface, the protrusion of the floor panel material and the wall rising from the floor surface come into contact with each other, and a gap is formed between the wall and the floor panel material. There was a problem.

Further, when the floor panel material is laid on the floor surface, an extra space narrower than one side of the floor panel material may be generated. Such excess space is filled with a cut panel formed by cutting the floor panel material. FIG. 14 shows an example in which the floor panel material 1 of Patent Document 2 is laid on the floor surface. As shown in the figure, the floor panels 1 are arranged without gaps on the first upright wall W1, but the extra space narrower than the floor panel 1 on the second upright wall W2. S1 is formed. In order to fill the surplus space S1, as shown in FIG. 15, when the floor panel 1 is cut, only the first cut panel 3A having the side portion having only the recess 2A and the protrusion 2T are left. Two types of cut panels are formed, a second cut panel 3B in which the provided side portion is left, and a second cut panel 3B. However, with respect to the second cut panel 3B, interference with the protrusion 2T of the floor panel material 1 may occur. Therefore, in the floor panel material 1 of Patent Document 2, only the first cut panel 3A can be used, and it is difficult to effectively use the floor panel material 1.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a floor panel material that can be effectively used while suppressing the formation of a gap between the wall and the wall.

The invention of claim 1 made to achieve the above object is a resin floor panel material formed in a plan view shape and laid on the floor surface, and when laid on the floor surface. The side portions of the adjacent floor panel materials are butted against each other, and the engaging protrusions and the engaging recesses provided on the outer surfaces of the side portions are configured to engage with each other. The provided side portion is provided with an outer wall portion forming an outer surface of the side portion and an inner side wall portion facing the outer wall portion from the inside, and the engaging protrusion is the outer wall portion. It is a floor panel material that projects outward from the portion and is arranged inside the outer surface of the outer wall portion before being bent when the outer wall portion is bent inward.

According to the second aspect of the present invention, in the floor panel material according to the first aspect, a storage recess that opens outward when viewed from the thickness direction of the floor panel material is provided on a side portion provided with the engaging protrusion. The inner side wall is formed of the inner wall of the accommodating recess, and the outer wall is composed of overhanging pieces that cantilever project from the opening edge of the accommodating recess so as to close the accommodating recess. Or, it is a floor panel material composed of a cross-linked wall that spans the opening edge of the accommodating recess.

A third aspect of the present invention, the floor panel member according to claim 1 or 2, wherein the outer wall portion, a floor panel member cutout portion to thin the wall thickness is formed.

According to a fourth aspect of the present invention, in the floor panel material according to any one of claims 1 to 3, when the outer wall portion is bent, the floor panel material is locked to the outer wall portion and the outer side is engaged. It is a floor panel material provided with a return regulation part that regulates the return of the wall part.

[Inventions of claims 1 to 3]
In the present invention, when the outer wall portion is bent inward, the engaging protrusion is arranged inside the outer surface of the outer wall portion before being bent, and the protrusion of the engaging protrusion on the side portion of the floor panel material is eliminated. It becomes possible. As a result, when the floor panel material is laid, even if the side portion provided with the engaging protrusion is abutted against the wall, it is possible to prevent a gap from being formed between the floor panel material and the wall. Further, in the present invention, when the floor panel material is cut to form a cut panel in which a side portion having only an engaging protrusion is left, the protrusion of the engaging protrusion is eliminated even in the cut panel. Is possible. As a result, when the gap is filled with the cut panel in which the side portion having only the engaging protrusion is left, it is possible to avoid the interference of the floor panel material with the engaging protrusion, and the floor panel material is effective. It can be used. As described above, according to the present invention, it is possible to achieve effective utilization while suppressing the formation of a gap between the wall and the wall.

Here, the gap between the outer wall portion and the inner side wall portion may be formed by a hole that penetrates the floor panel material in the thickness direction or a recess that opens upward or downward in the thickness direction, or the floor panel. It may be composed of recesses that open outward when viewed from the thickness direction of the material. In the latter case, the outer wall portion is composed of overhanging pieces that cantilever project from the opening edge of the recess so as to close the recess, or is a bridge that spans a plurality of openings edges of the recess. It may be composed of a wall (invention of claim 2). When the outer wall portion is composed of overhanging pieces, the outer wall portion can be easily bent.

Further, it is preferable that the outer wall portion is formed with a notch portion for reducing the wall thickness (invention of claim 3). When the cut portion is formed, the outer wall portion can be easily bent. The bending of the outer wall portion may be elastic deformation or plastic deformation.

[Invention of claim 4]
In the invention of claim 4, the return of the outer wall portion when the outer wall portion is bent is restricted. As a result, it is suppressed that the engaging protrusions arranged inside the outer surface of the outer wall portion before being bent return to the outside from the outer surface, and the protrusion of the engaging protrusions in the floor panel material and the cut panel is further increased. It becomes possible to suppress.

A perspective view of the floor panel material according to the first embodiment of the present invention as viewed from above. View of the floor panel material from below Floor plan of floor panel material Top view of engaging protrusions and engaging recesses (A) perspective view of the engaging protrusion, (B) perspective view of the engaging recess (A) Plan view of the engaging protrusions arranged at the protruding position, (B) Plan view of the engaging protrusions arranged at the retracted position. Perspective view of floor panel material laid on the floor Floor plan of floor panel material laid on the floor Top view of engaging recesses and engaging protrusions in two adjacent floor panel materials Top view of the floor panel material and the engaging protrusions on the second cut panel (A) A plan view of an engaging protrusion arranged at a protruding position, and (B) a plan view of an engaging protrusion arranged at a retracted position in the floor panel material according to the second embodiment. Top view of the engaging protrusion according to another embodiment Top view of the engaging protrusion according to another embodiment Diagram for explaining the laying of conventional floor panel materials Diagram for explaining the laying of a conventional cut panel

[First Embodiment]
Hereinafter, the first embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, the floor panel material 10 of the present embodiment has a main wall 11 having a square shape in a plan view and a plurality of support legs 12 hanging from the main wall 11.

A step portion 11D is provided at an intermediate position in the thickness direction on the outer peripheral surface of the main wall 11. The upper main wall 11A above the step portion 11D is one size larger than the lower main wall 11B below the step portion 11D.

The support legs 12 hang down from nine positions at the corners of the main wall 11, the central portion of each side portion 11H, and the central portion of the main wall 11. The support legs 12 adjacent to each other in the side direction of the main wall 11 (side direction of the floor panel 10) are connected to each other by a plurality of connecting ribs 14 (FIG. 2) integrally formed with the main wall 11.

The support legs 12 form a support column 13 together with a portion of the main wall 11 that overlaps with the support legs 12. Inside the support column 13, a column inner recess 13A opened upward is formed. Further, inside the pillar inner recess 13A, a plurality of recess inner ribs 13B extending in the depth direction of the pillar inner recess 13A are provided.

A plurality of through holes 15 are formed between the support columns 13 adjacent to each other in the side direction of the floor panel material 10. As shown in FIG. 3, the through holes 15 are formed in a rectangular shape elongated along the strip-shaped region R1 formed between the adjacent support columns 13 and 13, and a plurality of rows in the width direction of the strip-shaped region R1. It is equipped.

As shown in FIGS. 1 and 3, the main wall 11 is provided with a ceiling plate 16 surrounded on all sides by a strip-shaped region R1. As shown in FIG. 2, a plurality of lower surface ribs 16K are formed on the lower surface of the ceiling plate 16.

As shown in FIGS. 1 and 3, a drawer recess 17 is formed on the outer surface of each side portion 11H of the main wall 11. The drawer recess 17 is arranged in the center of the portion of each side portion 11H sandwiched between the adjacent support columns 13 and 13, and two of each side portion 11H are provided.

Further, an engaging recess 21 and an engaging protrusion 31 are provided on the outer surface of the side portion 11H of the main wall 11. In the floor panel material 10 of the present embodiment, one side portion 11H of a pair of side portions 11H and 11H facing each other is a first side portion 21H provided with only an engaging recess 21. The other side portion 11H is a second side portion 31H provided with only the engaging protrusion 31. Hereinafter, the engaging recess 21 and the engaging protrusion 31 will be described in detail.

As shown in FIGS. 4 and 5 (B), the first side portion 21H is formed with a first accommodating recess 22 that is open to the outside of the floor panel material 10 when viewed from the thickness direction of the main wall 11. From the opening edge of the first accommodating recess 22, the first overhanging piece 23 projects so as to close the opening of the first accommodating recess 22. The first overhang piece 23 constitutes the outer surface of the first side portion 21H. The engaging recess 21 is formed by a portion of the first accommodating recess 22 that is not covered by the first overhanging piece 23.

Specifically, the first accommodating recess 22 is formed in a groove shape extending in the thickness direction of the main wall 11. Then, the first overhang piece 23 projects from one groove side wall in the groove shape, and an engaging recess 21 is formed between the other groove side wall and the first overhang piece 23. The first accommodating recess 22 is formed in both the upper main wall 11A and the lower main wall 11B, and the first overhanging piece 23 projects from the portion of the one groove side wall formed by the upper main wall 11A. There is. More specifically, the first accommodating recess 22 is arranged in a portion sandwiched between the support pillar 13 arranged at the corner of the main wall 11 and the drawer recess 17, and the first overhang piece 23 is connected to the support pillar 13. It overhangs toward you. An engaging recess 21 is formed in a portion of the first accommodating recess 22 on the side closer to the support column 13.

As shown in FIGS. 4 and 5 (A), the second side portion 31H has an outer wall portion 41 forming the outer surface of the second side portion 31H and a gap 40 from the inside with respect to the outer wall portion 41. The inner side wall portion 42 facing each other is provided. The engaging protrusion 31 projects outward from the floor panel material 10 from the outer wall portion 41.

Specifically, the second side portion 31H has a second accommodating recess 32 that opens to the outside of the floor panel material 10 when viewed from the thickness direction of the main wall 11, and a second accommodating recess 32 from the opening edge of the second accommodating recess 32. A second overhanging piece 33, which overhangs in a cantilever shape so as to close the accommodating recess 32, is provided. The second overhang piece 33 constitutes the outer surface of the second side portion 31H. The outer wall portion 41 is formed by the second overhanging piece 33, and the inner side wall portion 42 is formed by the back wall of the second accommodating recess 32.

Specifically, the second accommodating recess 32 is formed in a groove shape extending in the thickness direction of the main wall 11. Then, the second overhanging piece 33 projects from one of the groove side walls in the groove shape. The second overhang piece 33 is thicker than the first overhang piece 23. The second accommodating recess 32 is formed in both the upper main wall 11A and the lower main wall 11B, and the first overhanging piece 33 projects from the portion of the one groove side wall formed by the upper main wall 11A. There is. More specifically, the second accommodating recess 32 is arranged in a portion sandwiched between the support pillar 13 arranged at the corner of the main wall 11 and the drawer recess 17, and the second overhang piece 33 is connected to the support pillar 13. It overhangs toward you. The second overhanging piece 33 may overhang from the support pillar 13 toward the drawer recess 17. In this case, the above-mentioned first overhanging piece 23 also projects from the support pillar 13 toward the drawer recess 17 corresponding to the second overhanging piece 33.

As shown in FIG. 6A, the engaging protrusion 31 protrudes from the tip of the second overhang piece 33, and the amount of protrusion decreases toward the base end side of the second overhang piece 33, which is a right-angled triangle. It is formed in a shape. The amount of protrusion of the engaging protrusion 31 from the second overhanging piece 33 is smaller than either the depth of the first accommodating recess 22 (FIG. 4) or the depth of the second accommodating recess 32.

A notch 33K for thinning the second overhang piece 33 is formed at the base end portion of the second overhang piece 33. Specifically, the cut portion 33K is formed on the surface of the second overhanging piece 33 facing the inner side wall portion 42 side. The shape of the cut portion 33K seen from the width direction of the second overhang piece 33 (that is, the thickness direction of the main wall 11) is a triangular shape in which the amount of cut increases toward the base end side of the second overhang piece 33. It has become.

As shown in FIGS. 6A and 6B, the second overhanging piece 33 is configured to be bendable and deformable in the horizontal direction. Specifically, in the second overhanging piece 33, the portion on the tip side of the notch portion 33K is the inner side (inner side wall portion 42) of the second accommodating recess 32, starting from the portion where the notch portion 33K is formed. It can be bent toward the side). Then, as shown in the change from FIG. 6A to FIG. 6B, when the second overhanging piece 33 is bent and deformed, the engaging protrusion 31 is bent and deformed, and the second overhanging piece before bending and deformation is formed. It is closer to the inner side wall portion 42 than the outer surface of 33 (indicated by a two-dot chain line in FIGS. 6 (A) and 6 (B)), and is accommodated in the second accommodating recess 32. In the following, the position of the engaging protrusion 31 shown in FIG. 6A will be referred to as a protruding position, and the position of the engaging protrusion 31 shown in FIG. 6B will be referred to as a retracted position as appropriate. ..

The floor panel material 10 of the present embodiment is provided with a return restricting portion 36 that restricts the engaging protrusion 31 arranged at the retracted position from returning to the protruding position. The return restricting portion 36 includes a locking projection 34 provided on the second overhanging piece 33, and a locking piece 35 protruding from the inner surface of the second accommodating recess 32.

The locking projection 34 projects from the tip surface of the second overhanging piece 33. The locking projection 34 is formed in a tapered shape. The surface of the locking projection 34 facing the inner side wall portion 42 is a locking surface 34M substantially parallel to the extending direction of the second overhang piece 33, and the locking projection 34 is on the inner side wall portion 42 side. The surface facing the surface is an inclined surface 34K that inclines away from the inner side wall portion 42 toward the tip end side of the locking projection 34.

The locking piece 35 is formed on the inner surface of the second accommodating recess 32 at a portion away from the base end portion of the second overhanging piece 33. Specifically, the locking piece 35 projects from the groove side wall opposite to the groove side wall communicating with the second overhanging piece 33 in the groove shape of the second accommodating recess 32, and is on the tip side with respect to the groove side wall. It is inclined toward the inner side (inner side wall portion 42 side) of the second accommodating recess 32 as it goes toward.

As shown in FIG. 6B, when the second overhanging piece 33 is bent and deformed, the locking piece 35 comes into contact with the locking surface 34M of the locking projection 34 and locks with the locking projection 34. The piece 35 is locked. Here, since the locking projection 34 has a tapered shape, the locking projection 34 can easily get over the locking piece 35 when the second overhanging piece 33 is bent and deformed. Further, since the locking piece 35 is inclined toward the inner side of the second accommodating recess 32 toward the tip end side, it is possible to prevent the locking piece 35 from obstructing the bending of the second overhanging piece 33. Has been done.

Next, a usage pattern of the floor panel material 10 will be described. As shown in FIG. 7, the floor panel materials 10 are laid side by side on the floor surface 90. When the floor panel material 10 is laid, a wiring space 91S in which the wiring 91 can be routed is formed between the floor surface 90 and the main wall 11.

As shown in FIG. 8, the floor panel material 10 is arranged so that the side portion 11H of the main wall 11 is abutted against the first upright wall 92 that stands up from the floor surface 90. At this time, the first side portion 21H in which only the engaging recess 21 is formed out of the four side portions is abutted against the first upright wall 92, so that the first upright wall 92 and the floor panel material 10 are brought into contact with each other. The formation of gaps between them is suppressed.

Further, between the two adjacent floor panel materials 10 and 10, the first side portion 21H of one floor panel material 10 and the second side portion 31H of the other floor panel material 10 are butted against each other. At this time, as shown in FIG. 9, the engaging recess 21 provided in the first side portion 21H and the engaging protrusion 31 provided in the second side portion 31H are engaged with each other, thereby causing one floor panel. It is suppressed that the material 10 is displaced from the other floor panel material 10 in the extending direction of the side portion 11H of the main wall 11.

Here, a part of the engaging protrusion 31 is received in the engaging recess 21, and a slight gap 10S is formed between the two floor panel materials 10 (specifically, between the two main walls 11). Will be done. By forming the gap 10S, the dimensional change of the main wall 11 due to thermal expansion is absorbed. Moreover, since the engaging recess 21 is formed between the opening edge of the first accommodating recess 22 and the first overhanging piece 23, the engaging protrusion 31 is engaged with the engaging recess 21 due to thermal expansion of the main wall 11. Even when entering the inside of the first overhanging piece 23, the entry is absorbed by the bending deformation of the first overhanging piece 23.

Further, between the two adjacent floor panel materials 10 and 10, the drawer recess 17 provided in the first side portion 21H of one floor panel material 10 and the second side portion 31H of the other floor panel material 10 are provided. The drawer recesses 17 are arranged to face each other, and a wiring drawer space 17S wider than the gap 10S is formed between the pair of drawer recesses 17 and 17 facing each other. Then, by inserting the wiring 91 (FIG. 7) from the wiring space 91S into the wiring drawing space 17S, the wiring 91 is pulled out above the floor panel material 10.

By the way, as shown in FIG. 8, when the floor panel materials 10 are arranged on the floor surface 90 from the first standing wall 92 side, the first standing wall 92 and the second standing wall 93 facing each other An extra space 93S narrower than one side of the floor panel material 10 may be formed between them. The surplus space 93S is filled with a cut panel 50 formed by cutting the floor panel material 10. Specifically, the cut panel 50 is formed by cutting the floor panel material 10 along the side portion 11H of the main wall 11. From one floor panel material 10, the first cut panel 51 in which the first side portion 21H remains uncut, the second cut panel 52 in which the second side portion 31H remains uncut, and the like. Two types of cut panels 50 are formed.

When the surplus space 93S is filled by the first cut panel 51, between the adjacent floor panel material 10 and the first cut panel 51, the second side portion 31H of the floor panel material 10 and the first cut panel 51 The first side portion 21H of the floor panel material 10 is butted against each other, and the engaging protrusion 31 of the floor panel material 10 and the engaging recess 21 of the first cut panel 51 are engaged with each other. Then, a gap having the same size as the above-mentioned gap 10S (FIG. 9) is formed between the floor panel material 10 and the first cut panel 51. The details of the engagement between the floor panel material 10 and the first cut panel 51 are the same as the engagement between the two adjacent floor panel materials 10 and 10.

When the surplus space 93S is filled by the second cut panel 52, between the adjacent floor panel material 10 and the second cut panel 52, the second side portion 31H of the floor panel material 10 and the second cut panel 52 The second side portion 31H of the above is abutted. At this time, if the engaging protrusions 31 are arranged at the protruding positions (FIG. 6A), the engaging protrusions 31 will interfere with each other. However, in the present embodiment, when the second overhang piece 33 is bent and deformed and the engaging protrusion 31 is arranged at the retracted position (FIG. 6 (B)), the engaging protrusion 31 is the second before bending deformation. 2 It is arranged on the inner side wall portion 42 side of the outer surface of the overhanging piece 33. As a result, in the present embodiment, as shown in FIG. 10, both the engaging protrusion 31 of the floor panel material 10 and the engaging protrusion 31 of the second cut panel 52 are arranged in the retracted position. , Interference between the engaging protrusions 31 is suppressed. A gap of the same size as the gap 10S (FIG. 9) between the two adjacent floor panel materials 10 and 10 is formed between the floor panel material 10 and the second cut panel 52.

In the example shown in FIG. 8, the first cut panel 51 and the second cut panel 52 are alternately arranged along the second upright wall 93. When the engaging protrusion 31 of the first cut panel 51 and the engaging protrusion 31 of the second cut panel 52 are butted between the adjacent first cut panel 51 and the second cut panel 52. There is. Also in this case, the engaging protrusion 31 of the first cut panel 51 is arranged at the retracted position (FIG. 6B), and the engaging protrusion 31 of the second cut panel 52 is arranged at the retracted position. As a result, the protrusion of the engaging protrusion 31 is suppressed in both the first cut panel 51 and the second cut panel 52 in the same manner as in the case shown in FIG. As a result, the interference of the engaging protrusion 31 between the first cut panel 51 and the second cut panel 52 is suppressed. A gap of the same size as the gap 10S (FIG. 9) between the two adjacent floor panel materials 10 and 10 is formed between the first cut panel 51 and the second cut panel 52.

In the example of FIG. 8, the first side portion 21H of the floor panel material 10 is abutted against the first upright wall 92, but the second side portion 31H may be abutted against the first upright wall 92. In this case, the engaging protrusion 31 of the second side portion 31H abutting against the first upright wall 92 is arranged at the retracted position, so that the floor panel material 10 and the first upright wall 92 are separated from each other. The formation of gaps is suppressed.

This concludes the description of the configuration of the floor panel material 10 of the present embodiment. In the present embodiment, the second accommodating recess 32 corresponds to the "accommodation recess" of the present invention, and the second overhanging piece 33 corresponds to the "overhanging piece" of the present invention.

Next, the action and effect of the floor panel material 10 will be described. In the floor panel material 10 of the present embodiment, when the outer wall portion 41 is bent inward, the engaging protrusion 31 is arranged inside the outer surface of the outer wall portion 41 before being bent, and the main part of the floor panel material 10 is It is possible to eliminate the protrusion of the engaging protrusion 31 on the side portion 11H (specifically, the second side portion 31H) of the wall 11. As a result, when the floor panel material 10 is laid, even if the second side portion 31H is abutted against the first upright wall 92, a gap is suppressed from being formed between the second side portion 31H and the first upright wall 92. Be done. Further, in the present embodiment, when the floor panel material 10 is cut to form the second cut panel 52 in which the second side portion 31H is not cut and remains, the second cut panel 52 is also formed. It is possible to eliminate the protrusion of the engaging protrusion 31. As a result, when the extra space 93S between the second upright wall 93 and the second upright wall 93 is filled by using the second cut panel 52, it becomes possible to avoid interference of the floor panel material 10 with the engaging protrusion 31. Effective use of the floor panel material 10 is achieved. As described above, according to the floor panel material 10 of the present embodiment, it is possible to effectively use the floor panel material 10 while suppressing the formation of a gap between the floor panel material 10 and the first upright wall 92.

Further, in the present embodiment, the outer wall portion 41 is composed of a second overhanging piece 33 that projects cantilevered from the opening edge of the second accommodating recess 32 so as to close the second accommodating recess 32. The outer side wall portion 41 can be easily bent. Moreover, since the outer wall portion 41 is formed with a notch portion 33K for reducing the wall thickness, the outer wall portion 41 can be further easily bent.

Further, in the present embodiment, the return of the outer wall portion 41 when the outer wall portion 41 is bent is regulated by the return restricting portion 36 (locking protrusion 34 and locking piece 35), so that the floor panel material 10 and It is possible to further suppress the protrusion of the engaging protrusion 31 in the second cut panel 52.

[Second Embodiment]
Hereinafter, a second embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 11A, the present embodiment is not provided with the notch 33K and the return restricting portion 36 (that is, the locking projection 34 and the locking piece 35). It is different from one embodiment. Other configurations of this embodiment are the same as those of the first embodiment.

In the present embodiment, the second overhang piece 33 (outer wall portion 41) is plastically deformed or broken when bent toward the inner side wall portion 42. FIG. 11B shows the broken second overhang piece 33. The broken second overhang piece 33 may remain connected to the main wall 11 or may be separated from the main wall 11 as in the example shown in FIG. 11B.

As shown in FIG. 11 (B), the second overhang piece 33 bent toward the inner side wall portion 42 is the outer surface of the second overhang piece 33 before being bent (in the figure, a two-dot chain line is used. It is arranged closer to the inner side wall portion 42 than (shown.) And fits in the second accommodating recess 32. The same effect as that of the first embodiment can be obtained by this embodiment as well.

[Other Embodiments]
The present invention is not limited to the above embodiments, and for example, embodiments as described below are also included in the technical scope of the present invention, and various other than the following, as long as they do not deviate from the gist. It can be changed and implemented.

(1) In the first embodiment, the cut portion 33K may be formed on a surface of the second overhanging piece 33 facing the inner side wall portion 42.

(2) In the first embodiment, as shown in FIG. 12, the cut portion 33K may be formed in the intermediate portion of the second overhang piece 33.

(3) In the second embodiment, the cutout portion 33K may be provided. In that case, any of the above-mentioned first embodiment and the above-mentioned other embodiments (1) and (2) may be applied.

(4) In the first embodiment, the return control unit 36 may not be provided. Further, in the second embodiment, the return control unit 36 of the first embodiment may be provided.

(5) As shown in FIG. 13, a bridge wall 38 spanned at two locations on the opening edge of the second accommodating recess 32 may be provided, and the outer wall portion 41 may be formed by the bridge wall 38. In this case, the gap 40 between the outer wall portion 41 and the inner side wall portion 42 is formed by a through hole or a recess opened in the thickness direction. The bridge wall 38 has a first cut portion 39 for facilitating the breakage of the bridge wall 38 and a second cut portion 38K for facilitating the bending of the broken bridge wall 38. It is preferable to be provided.

(6) In the above embodiment, only one of the pair of side portions 11H and 11H facing each other is provided with the engaging recess 21 on one side portion 11H, and only the engaging protrusion 31 is provided on the other side portion 11H. However, both the engaging recess 21 and the engaging protrusion 31 may be provided on the side portion 11H.

(7) In the above embodiment, the engaging recess 21 or the engaging protrusion 31 is provided at two locations on the side portion 11H, but it may be provided at one location or at three or more locations. Good.

(8) In the above embodiment, the first overhanging piece 23 and the second overhanging piece 33 project from one groove side wall at the opening edge of the first accommodating recess 22 and the second accommodating recess 32, but one of them. It may project from both the groove side wall and the other groove side wall. In this case, the return control unit 36 may be provided at one place or may be provided at two places.

(9) In the above embodiment, the shape of the engaging protrusion 31 is a right-angled triangle, but if the floor panel materials 10 can be prevented from being displaced from each other, other triangles, squares, hemicircles, and hemispheres can be formed. And so on.

(10) In the above embodiment, the shape of the cut portion 33K is triangular, but it may be trapezium, elliptical, circular, U-shaped, V-shaped, or the like.

10 Floor panel material 21 Engagement recess 21H 1st side 22 1st accommodating recess 23 1st overhang 31 Engagement protrusion 31H 2nd side 32 2nd accommodating recess 33 2nd overhang 33K Notch 34 Locking protrusion 35 Locking piece 41 Outer side wall 42 Inner side wall

Claims (4)

A resin floor panel material that is formed in a plan view shape and laid on the floor surface.
When laid on the floor surface, the side portions of the adjacent floor panel materials are butted against each other, and the engaging protrusions provided on the outer surfaces of the side portions and the engaging recesses are engaged with each other. Being done
The side portion provided with the engaging protrusion is provided with an outer wall portion forming an outer surface of the side portion and an inner side wall portion facing the outer wall portion from the inside.
The engaging protrusion protrudes outward from the outer wall portion, and when the outer wall portion is bent inward, the floor is arranged inside the outer surface of the outer wall portion before being bent. Panel material . In the floor panel material according to claim 1,
The side portion provided with the engaging protrusion is provided with a storage recess that opens outward when viewed from the thickness direction of the floor panel material.
The inner side wall is formed by the back wall of the accommodating recess.
The outer wall portion is composed of overhanging pieces that cantilever project from the opening edge of the accommodating recess so as to close the accommodating recess, or is formed by a cross-linked wall spanning the opening edge of the accommodating recess. Floor panel material to be composed. In the floor panel material according to claim 1 or 2.
A floor panel material in which a notch portion for reducing the wall thickness is formed on the outer wall portion. In the floor panel material according to any one of claims 1 to 3,
A floor panel material provided with a return restricting portion that locks on the outer wall portion and regulates the return of the outer wall portion when the outer wall portion is bent.

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