JP2021017741A - Floor panel, and floor structure - Google Patents

Abstract

To provide a floor panel with excellent fire resistance.SOLUTION: A floor panel 1 includes: a thermoplastic resin floor panel body 10 comprising at least one wiring groove 11; and a metal cover member 20 provided in the wiring groove 11. The wiring groove 11 includes: a bottom portion 110 positioned below a top plate 150 of the floor panel body 10; and a wall portion 111 standing from the bottom portion 110. The cover member 20 includes: a top face portion 200 facing the bottom portion 110; and a leg portion 210 extending from the top face portion 200 toward the bottom portion 110 and provided along the wall portion 111.SELECTED DRAWING: Figure 1

Description

The present disclosure generally relates to floor panels and floor structures. The present disclosure specifically relates to a floor panel including a floor panel main body and a lid member, and a floor structure in which a floor panel is provided on a floor slab.

Conventionally, a floor structure provided with a space for accommodating wiring such as electrical wiring and LAN cable is known.

For example, Patent Document 1 discloses a floor panel spread on the floor surface of a building. The floor panel of Patent Document 1 includes a panel body made of synthetic resin having a groove for wiring, and a lid that is attached to the panel body and covers the groove for wiring from above, and the lid straddles the groove for wiring. It is placed on the top plate of the floor panel body in a closed state.

For example, Patent Document 2 discloses a panel in which a metal plate and an inorganic plate are superposed, and a space is provided between the floor and the panel by a panel support device, and cables, power lines, etc. can be wired by this space. It is disclosed.

Japanese Unexamined Patent Publication No. 2006-200327 Japanese Unexamined Patent Publication No. 62-45850

In a floor structure provided with wiring, a fire may occur from this wiring. In the floor structure having the floor panel of Patent Document 1, since the lid is provided so as to straddle the groove for wiring, it cannot be said that the fire resistance around the wiring is sufficient. Further, in the floor structure using the panel of Patent Document 2, the fire resistance can be improved by locating the metal plate on the wiring, but the panel itself becomes heavy, so that the workability is lowered.

An object of the present disclosure is to provide a floor panel having excellent fire resistance and workability, and a floor structure including the floor panel.

The floor panel according to one aspect of the present disclosure includes a floor panel main body made of a thermoplastic resin provided with at least one wiring groove, and a metal lid member provided in the wiring groove. The wiring groove includes a bottom portion located below the top plate of the floor panel main body and a wall portion rising from the bottom portion. The lid member includes a top surface portion facing the bottom portion and a leg portion extending from the top surface portion toward the bottom portion and provided along the wall portion.

The floor structure according to one aspect of the present disclosure is a floor structure in which a floor panel is provided on a floor slab. The floor panel includes a floor panel main body made of a thermoplastic resin having at least one wiring groove, and a metal lid member provided in the wiring groove. The wiring groove includes a bottom portion located below the upper surface of the floor panel main body and a wall portion rising from the bottom portion. The lid member includes a top surface portion facing the bottom portion and a leg portion extending from the top surface portion toward the bottom portion and provided along the wall portion.

According to the above aspect of the present disclosure, it is an object of the present invention to provide a floor panel having excellent fire resistance and workability, and a floor structure including the floor panel.

FIG. 1 is a schematic perspective view showing a floor panel according to an embodiment of the present disclosure. FIG. 2 is a schematic cross-sectional view showing a floor structure according to an embodiment of the present disclosure. FIG. 3 is a schematic front view showing a floor panel according to an embodiment of the present disclosure. FIG. 4A is a schematic perspective view showing a cross lid provided on the floor panel of the same. FIG. 4B is a schematic perspective view showing a modified example of the cross lid shown in FIG. 4A. FIG. 5 is a schematic cross-sectional view showing a modified example of the floor panel of the above. 6A and 6B are schematic perspective views showing a modified example of the lid member included in the floor panel of the same.

1. 1. Outline As shown in FIGS. 1 and 2, the floor panel 1 according to the embodiment of the present disclosure includes a floor panel main body 10 made of a thermoplastic resin and a metal lid member 20.

The floor panel main body 10 includes at least one wiring groove 11. The wiring groove 11 includes a bottom portion 110 located below the top plate 150 of the floor panel main body 10, and a wall portion 111 rising from the bottom portion 110.

The lid member 20 is provided in the wiring groove 11. The lid member 20 includes a top surface portion 200 facing the bottom portion 110, and a leg portion 210 extending from the top surface portion 200 toward the bottom portion 110 and provided along the wall portion 111.

Further, in the floor structure 3 according to the embodiment of the present disclosure, as shown in FIG. 2, the floor panel 1 is provided on the floor slab 30.

In the floor structure 3, wiring 4 such as electrical wiring and LAN cable is provided in the wiring groove 11. Even if a fire breaks out from the wiring 4, the wall portion 111 and the upper part of the wiring groove 11 are covered with the metal lid member 20, so that the floor panel main body 10 can be prevented from burning. As a result, the fire resistance of the floor panel 1 can be sufficiently ensured.

Further, since the floor panel main body 10 is made of resin and is lighter than the case where a metal member is provided on the entire surface, it is easy to install the floor panel main body 10 on the floor slab 30. Therefore, the floor panel 1 has excellent workability.

2. 2. Details Hereinafter, the floor panel 1 according to the present embodiment and the floor structure 3 provided with the floor panel 1 will be described in detail with reference to FIGS. 1 to 6. It should be noted that FIGS. 1 to 6 are schematic views, and the dimensions of each component in the drawing do not necessarily reflect the actual dimensions.

2-1. Floor panel The floor panel 1 of the present embodiment includes a floor panel main body 10 and a lid member 20 as described above. Further, it is also preferable that the floor panel 1 of the present embodiment includes a cross lid 22. These configurations will be described with reference to FIGS. 1 to 6.

(1) Floor panel main body The floor panel main body 10 is made of a thermoplastic resin. As this thermoplastic resin, the thermoplastic resin used for the resin-made raised floor can be used without particular limitation. Examples of thermoplastic resins include polypropylene, polyethylene, polyvinyl chloride, polystyrene, polyvinyl acetate, polyurethane, ABS resin, acrylic resin and the like. The floor panel main body 10 can contain one or more of these thermoplastic resins. In particular, in the present embodiment, the floor panel main body 10 is preferably made of polypropylene resin. In this case, it is easy to secure the strength, water resistance, chemical resistance and heat resistance of the floor panel main body 10, and the performance of the floor panel 1 can be improved.

The floor panel main body 10 of the present embodiment includes a top plate 150 and a wiring groove 11.

The top plate 150 is a portion of the floor panel main body 10 where the wiring groove 11 is not provided. In the floor panel main body 10 of the present embodiment, the top plate 150 is divided into four regions by two wiring grooves 11. Specifically, the top plate 150 includes a first region 151, a second region 152, a third region 153, and a fourth region 154 (see FIG. 3).

The first region 151, the second region 152, the third region 153, and the fourth region 154 each have a plurality of legs 155 (see FIGS. 1 and 2). Therefore, the floor panel main body 10 also has a plurality of legs 155. The plurality of legs 155 are provided on the back surface side of the top plate 150. A gap can be formed between the floor slab 30 and the top plate 150 by the plurality of legs 155, and the air permeability between the floor slab 30 and the floor panel main body 10 can be improved by this gap. The wall portion 111 of the wiring groove 11 is also a part of the leg 155.

As shown in FIG. 2, the wiring groove 11 includes a bottom portion 110 and a wall portion 111.

The bottom portion 110 is located below the top plate 150 of the floor panel main body 10. The surface of the bottom 110 of the present embodiment is flat, but is not limited to this. For example, the surface of the bottom 110 may be provided with protrusions or irregularities. The width of the bottom 110 shown in FIG. 2 is appropriately set according to the size of the floor panel main body 10, and is preferably 65 mm or more and 80 mm or less, and more preferably 65 mm or more and 70 mm or less. In this case, it is easy to install the wiring 4 in the wiring groove 11, and it is easy to secure the strength of the floor panel main body 10.

The wall portion 111 rises upward from the bottom portion 110. The wall portion 111 of the present embodiment rises upward from both ends of the bottom portion 110. Therefore, the wall portion 111 of the present embodiment has a portion that rises upward from one end of the bottom portion 110 and a portion that rises upward from the other end of the bottom portion 110. The angle between the wall portion 111 and the bottom portion 110 is, for example, 90 °, but is not limited thereto. For example, the angle between the wall portion 111 and the bottom portion 110 may be less than 90 ° or more than 90 °. The upper end of the wall 111 is connected to the top plate 150 of the floor panel main body 10. Therefore, an opening is formed by the upper end portion of the wall portion 111. The height of the wall portion 111 is appropriately set according to the size of the floor panel main body 10, and is preferably 30 mm or more and 50 mm or less, and more preferably 30 mm or more and 40 mm or less. In this case, it is easy to install the wiring 4 in the wiring groove 11, and it is easy to secure the strength of the floor panel main body 10.

The floor panel main body 10 of the present embodiment includes a plurality of wiring grooves 11, and in detail, includes two wiring grooves 11. Further, in the floor panel 1 of the present embodiment, one or more lid members 20 are attached in one wiring groove 11, and specifically, two lid members 20 are attached in one wiring groove 11. Of the two wiring grooves 11 included in the floor panel main body 10 of the present embodiment, one is the first wiring groove 112 and the other is the second wiring groove 113 (see FIG. 3). Therefore, the floor panel main body 10 includes the first wiring groove 112 and the second wiring groove 113. Further, two lid members 20 are attached in the first wiring groove 112, and two lid members 20 are also attached in the second wiring groove 113. The first wiring groove 112 and the second wiring groove 113 intersect. That is, the second wiring groove 113 intersects with the first wiring groove 112. In the floor panel main body 10 of the present embodiment, the first wiring groove 112 and the second wiring groove 113 are orthogonal to each other, but the present invention is not limited to this. For example, the first wiring groove 112 and the second wiring groove 113 do not have to be orthogonal to each other.

In the floor panel main body 10, the intersection groove 12 is provided at a portion where the first wiring groove 112 and the second wiring groove 113 intersect. Therefore, the floor panel main body 10 includes the cross groove 12. Further, the wiring 4 housed in the first wiring groove 112 and the wiring 4 housed in the second wiring groove 113 intersect in the crossing groove 12. Further, the first wiring groove 112 is divided into two regions by the intersection groove 12, and the second wiring groove 113 is also divided into two regions by the intersection groove 12. Therefore, the floor panel main body 10 includes nine regions in a plan view. Specifically, the nine regions include a first region 151, a second region 152, a third region 153 and a fourth region 154 included in the top plate 150, and two regions included in the first wiring groove 112. The two regions included in the second wiring groove 113 and the intersecting groove 12 are included. Further, the four regions included in the top plate 150 are connected by the wiring groove 11. In particular, in the present embodiment, the thickness of the bottom 110 of the wiring groove 11 is preferably 1 mm or more, and more preferably 1.5 mm or more. in this case,. The strength of the floor panel main body 10 can be ensured. Further, the thickness of the bottom 110 of the wiring groove 11 is preferably 3 mm or less, and more preferably 2 mm or less. In this case, flexibility can be imparted to the floor panel main body 10. For example, even when the surface of the floor slab 30 is not flat, the floor panel main body 10 can follow the surface shape of the floor slab 30.

The intersection groove 12 includes an intersection bottom portion 120 and an intersection wall portion 121. The cross bottom 120 is a part of the bottom 110, and the cross wall 121 is a part of the wall 111. As described above, since the intersection groove 12 is a portion where the two wiring grooves 11 (first wiring groove 112 and the second wiring groove 113) intersect, the intersection bottom 120 is a portion where the two bottoms 110 intersect, and the intersection wall portion. Reference numeral 121 denotes a portion where the two wall portions 111 intersect. The intersection groove 12 has four intersection wall portions 121. The four intersecting wall portions 121 belong to the first region 151, the second region 152, the third region 153, and the fourth region 154, respectively.

(2) Lid member The lid member 20 is made of metal. This metal includes iron, aluminum, stainless steel, alloys containing these, and the like. In particular, in the present embodiment, it is preferable that the lid member 20 is made of iron. In this case, it is easy to secure the fire resistance and strength of the lid member 20.

The lid member 20 is provided in the wiring groove 11. The lid member 20 of the present embodiment is a member having a U-shaped cross section, and includes a top surface portion 200 and a leg portion 210 as described above (see FIGS. 1 to 4A).

The top surface portion 200 is provided so as to face the bottom portion 110 of the wiring groove 11. Therefore, the top surface portion 200 has the same shape as the bottom portion 110 in a plan view. The top surface portion 200 of the present embodiment has a rectangular plate shape in a plan view. In the floor panel 1, the upper portion 110 of the bottom portion 110 of the wiring groove 11 can be covered with the top surface portion 200. That is, the opening formed by the upper end portion of the wall portion 111 of the wiring groove 11 can be covered with the top surface portion 200. Therefore, the top surface portion 200 can form a part of the surface of the floor panel 1. Further, the top surface portion 200 can ensure the fire resistance above the bottom portion 110. The thickness of the top surface portion 200 is preferably 1 mm or more and 4 mm or less, and more preferably 1 mm or more and 3 mm or less. In this case, the strength and fire resistance of the top surface portion 200 can be ensured.

As shown in FIG. 2, the leg portion 210 extends from the top surface portion 200 toward the bottom portion 110. The leg portion 210 has a rectangular plate shape in a plan view, and is provided along the wall portion 111. In the lid member 20 of the present embodiment, the lid member 20 extends downward from one end and the other end of the top surface portion 200. Further, the leg 210 extending from one end of the top surface 200 is along one wall 111 of the wiring groove 11, and the leg 210 extending from the other end of the top surface 200 is on the other wall 111 of the wiring groove 11. Along. That is, the wall portion 111 of the wiring groove 11 is covered with the leg portion 210, and the fire resistance of the wall portion 111 of the wiring groove 11 can be ensured by the leg portion 210. The thickness of the leg portion 210 is preferably 1 mm or more and 4 mm or less, and more preferably 1 mm or more and 3 mm or less. In this case, the strength and fire resistance of the leg 210 can be ensured. Further, in the present embodiment, it is preferable that a gap is provided between the leg portion 210 and the wall portion 111.

In the lid member 20 of the present embodiment, the top surface portion 200 and the leg portion 210 are integrally formed. Therefore, the lid member 20 can be formed by bending a metal plate material or the like.

The floor panel 1 of the present embodiment includes a plurality of lid members 20. Specifically, it includes four lid members 20. As shown in FIG. 2, the four lid members 20 are between the first region 151 and the second region 152, between the second region 152 and the third region 153, and between the third region 153 and the fourth region 154. Between the fourth region 154 and the first region 151, respectively.

(3) Crossing Lid In the floor panel 1 of the present embodiment, as shown in FIGS. 1 and 3, a crossing lid 22 is provided in the crossing groove 12.

The cross lid 22 is made of metal, for example, the same material as the lid member 20. Therefore, the cross lid 22 is preferably made of iron, aluminum, stainless steel, or an alloy containing these, and more preferably made of iron. As described above, since the intersection groove 12 is a portion where the first wiring groove 112 and the second wiring groove 113 intersect, the inside of the intersection groove 12 is the wiring 4 passing through the first wiring groove 112 and the inside of the second wiring groove 113. There may be a wiring 4 passing through. Therefore, the cross groove 12 is particularly required to have fire resistance. In that respect, in the floor panel 1 of the present embodiment, since the cross lid 22 is mounted in the cross groove 12, the fire resistance of the cross lid 22 can be improved by making the cross lid 22 made of metal, particularly iron. , The fire resistance of the floor panel 1 can be improved.

As shown in FIG. 4A, the cross lid 22 includes a cross top surface portion 220 and a cross leg portion 221.

The intersection top surface portion 220 is provided so as to face the intersection bottom portion 120 of the intersection groove 12. Therefore, the crossing top surface portion 220 has the same shape as the crossing bottom portion 120 in a plan view. The crossing top surface 220 is plate-shaped. In the floor panel 1, the upper part of the intersection bottom portion 120 of the intersection groove 12 is covered with the intersection top surface portion 220. Therefore, a part of the surface of the floor panel 1 can be formed by the intersecting top surface portion 220. Further, the cross top surface portion 220 can secure the fire resistance above the cross bottom portion 120.

As shown in FIGS. 1 and 4A, the cross leg portion 221 extends from the cross top surface portion 220 toward the cross bottom portion 120. The cross leg portion 221 has a rectangular plate shape in a plan view, and is provided along the cross wall portion 121. Therefore, the cross wall portion 121 and the cross leg portion 221 are provided so as to face each other.

The cross lid 22 of the present embodiment includes four cross leg portions 221 each of which face the cross wall portion 121 of the cross groove 12. Therefore, in the floor panel 1 of the present embodiment, even if the wiring 4 is installed in the wiring groove 11, the cross lid 22 can be easily attached in the cross groove 12.

2-2. Floor structure In the floor structure 3 of the present embodiment, the floor panel 1 is provided on the floor slab 30 as described above.

The floor slab 30 is a structural floor that supports the load of the floor of a building. The floor slab 30 is, for example, a concrete slab. The surface of the floor slab 30 is preferably flat, but is not limited to this, and the surface of the floor slab 30 does not have to be flat.

Specifically, as shown in FIG. 2, the floor panel main body 10 is arranged on the floor slab 30, and the wiring 4 such as electrical wiring and LAN cable is provided in the wiring groove 11 of the floor panel main body 10. Moreover, the lid member 20 is installed in the wiring groove 11 so as to cover the wiring 4.

In the floor structure 3 of the present embodiment, since the wall portion 111 of the wiring groove 11 is covered with the metal lid member 20, it is possible to prevent the floor panel main body 10 from burning even if a fire breaks out from the wiring 4. .. Further, since the upper part of the bottom 110 of the wiring groove 11 is covered with the metal lid member 20, even if a member such as a carpet is arranged on the top plate 150 of the floor panel 1, this member is made hard to burn. Can be done.

The floor structure 3 of the present embodiment can be constructed by, for example, the following steps.

First, the floor panel main body 10 is arranged on the floor slab 30. The floor panel main body 10 of the present embodiment is flexible to the floor panel main body 10 because the first region 151, the second region 152, the third region 153, and the fourth region 154 are connected by the bottom 110 of the wiring groove 11. Gender can be imparted. Therefore, even if the surface of the floor slab 30 is not flat, the floor panel main body 10 can follow the surface shape of the floor slab 30. Therefore, the floor panel main body 10 can be stably arranged on the floor slab 30.

Next, the wiring 4 is arranged in the wiring groove 11 of the floor panel main body 10. Although the floor panel main body 10 of the present embodiment includes two wiring grooves 11 (first wiring groove 112 and wiring groove 113), wiring 4 may be arranged in both of the two wiring grooves 11. The wiring 4 may be arranged in one of the wiring grooves 11.

Next, the lid member 20 is installed in the wiring groove 11. Specifically, the lid member 20 is provided so that the top surface portion 200 of the lid member 20 and the bottom portion 110 of the wiring groove 11 face each other and the leg portion 210 of the lid member 20 is along the wall portion 111 of the wiring groove 11. Install. As a result, the upper portion 110 of the bottom portion 110 of the wiring groove 11 and the wall portion 111 are covered with the lid member 20, and the wiring 4 in the wiring groove 11 is also covered with the lid member 20.

By the above steps, the floor panel 1 can be installed on the floor slab 30, and the floor structure 3 can be constructed.

2-3. Modification example The configuration of the floor panel 1 and the floor structure 3 is not limited to the above configuration.

In the floor panel 1 and the floor structure 3 shown in FIG. 2, the top plate 150 and the top surface portion 200 are flush with each other, but the present invention is not limited to this. For example, as shown in FIG. 5, the floor panel 1 may further include a cover member 201 that covers the top surface portion 200, and the cover member 201 and the top plate 150 may be flush with each other. The cover member 201 is preferably made of the same material as the floor panel main body 10. Since the top plate 150 is made of thermoplastic resin and the lid member 20 is made of metal, there may be a difference in footsteps when a person walks on the top plate 150 and the lid member 20. In this respect, by covering the lid member 20 with the cover member 201 made of thermoplastic resin, it is possible to reduce the difference in footsteps when a person walks on the top plate 150 and the lid member 20.

For example, in the floor structure 3, a member such as a carpet may be further installed on the floor panel 1.

For example, in the floor structure 3 shown in FIG. 2, one floor panel 1 is installed on the floor slab 30, but the present invention is not limited to this, and even if a plurality of floor panels 1 are installed on the floor slab 30. Good. When a plurality of floor panels 1 are installed on the floor slab 30, adjacent floor panels 1 may be connected to each other.

For example, in the floor panel 1, the lid member 20 may be locked by a claw or the like provided on the floor panel main body 10. In this case, the lid member 20 can be stably installed.

For example, the lid member 20 shown in FIGS. 6A and 6B may be provided in the wiring groove 11 of the floor panel 1.

In the lid member 20 shown in FIGS. 6A and 6B, a bent piece 202 is provided at one end edge of the top surface portion 200 in the longitudinal direction. As shown in FIG. 6A, the bent piece 202 extends downward from one end edge in the longitudinal direction of the top surface portion 200. The top surface portion 200 of the lid member 20 is likely to be subjected to downward stress, and particularly when stress is applied to the end portion of the top surface portion 200 in the longitudinal direction, deformation may occur. In this regard, in the lid member 20 shown in FIGS. 6A and 6B, when stress is applied to the longitudinal end portion of the top surface portion 200, the lower end portion of the bent piece 202 is supported by the corner portion 211 of the leg portion 210. Therefore, it is possible to suppress the occurrence of deformation due to stress. Further, when the lid member 20 is manufactured from a metal plate material, burrs, protrusions, etc. may be generated on the longitudinal edge of the top surface portion 200, and such an edge tends to be sharp. In this respect, by providing the bent piece 202 at the end edge of the top surface portion 200 in the longitudinal direction, it is possible to suppress the formation of burrs, protrusions, etc. on the end edge.

In the lid member 20 shown in FIGS. 6A and B, a notch piece 203 is provided at the other end edge of the top surface portion 200 in the longitudinal direction. The notch piece 203 is a notch provided in a part of the end edge in the longitudinal direction of the top surface portion 200. In the floor panel 1, the edge of the crossing top surface 220 of the cross lid 22 and the edge of the top surface 200 of the lid member 20 are butted against each other, and the notch 222 provided at the edge of the crossing top surface 220 (FIG. (Refer to 4B), an opening can be formed by abutting the notch piece 203. Further, the wiring 4 provided in the wiring groove 11 can be pulled out from this opening, and for example, a power tap or the like can be arranged on the floor panel 1. Therefore, it is also preferable to provide a notch 222 at the end edge of the crossing top surface portion 220 as in the crossing lid 22 shown in FIG. 4B. In the cross lid 22 shown in FIG. 4B, notches 222 are provided at two of the four end edges of the cross top surface portion 220, but the present invention is not limited to this. For example, one of the four edge edges may be provided with a notch 222, three may be provided, or four may be provided. Further, in the cross lid 22 shown in FIG. 4B, notches 222 are provided at two adjacent edge edges among the four edge edges of the cross surface portion 220, but the present invention is not limited to this, and two opposing edges are provided. A notch 222 may be provided at the edge. Further, in the cross lid 22 shown in FIG. 4B, a cutout portion 222 is provided at the end edge of the cross top surface portion 220 and is bent downward. Further, in the lid member 20 shown in FIG. 6B, a notch piece 203 is provided at the end edge of the top surface portion 200 in the longitudinal direction and is bent downward. Therefore, burrs, protrusions, and the like are not formed on the edge of the opening formed by abutting the notch portion 222 and the notch piece 203. Therefore, when the wiring 4 is pulled out from the opening, the wiring 4 is burred. It is possible to prevent damage due to protrusions and the like. Further, in the two adjacent floor panels 1, an opening can be formed by abutting the cutout pieces 203 of the adjacent lid members 20 with each other. Further, the opening can be reduced by abutting the edge of the crossing top surface portion 200 having no notch with the notch piece 203. Further, in two adjacent floor panels 1, the opening can be reduced by abutting the edge of the top surface portion 200 of one lid member 20 with the cutout piece 203 of the other lid member 20. .. By reducing the opening in this way, it is possible to prevent the heel from penetrating the opening through the carpet or the like provided on the floor panel 1 when walking on the floor panel 1 with high heels or the like. it can. Further, since the notch piece 203 extends downward, the lower end portion of the notch piece 203 is supported by the corner portion 211 of the leg portion 210, so that deformation due to stress can be suppressed.

The rib 204 may be provided on the top surface portion 200 as in the lid member 20 shown in FIGS. 6A and 6B. The rib 204 is recessed from the front surface of the top surface portion 202 toward the back surface. That is, the rib projects toward the bottom 110 of the wiring groove 11. By providing the rib 204 on the top surface portion 200, the strength of the top surface portion 202 can be improved. The number of ribs 204 provided on the top surface 200 is not particularly limited. For example, one rib 204 may be provided on the top surface portion 200, or two or more ribs 204 may be provided.

As in the lid member 20 shown in FIGS. 6A and 6B, the leg portion 210 may be provided with the protrusion 205. The protrusion 205 projects toward the wall portion 111 of the wiring groove 11. By providing a recess in the portion of the wall portion 111 corresponding to the protrusion 205, the protrusion 205 can be fitted into the recess, whereby the lid member 20 can be stably installed, and the lid member 20 rattles. It can be suppressed. The number of protrusions 205 provided on the leg 210 may be one or may be plural. When a plurality of protrusions 205 are provided on the leg portion 210, it is preferable to provide a plurality of recesses on the wall portion 111 as well.

Further, as in the lid member 20 shown in FIGS. 6A and 6B, it is preferable that there are no holes, and it is particularly preferable that the legs 210 have no holes. If the lid member 20 has a hole, particularly if the leg 210 has a hole, a fire may come out from this opening when a fire breaks out from the wiring 4 arranged in the wiring groove 11, and especially the leg. If there is a hole in 210, the wall 111 will be ignited. In that respect, since the lid member 20 has no holes, and particularly the legs 210 have no holes, it is possible to make it difficult for the wall portion 111 to catch fire, and it is possible to improve the fire resistance of the floor panel main body 10. ..

As described above, in the lid member 20 shown in FIGS. 6A and 6B, a bent piece 202 is provided at one end edge of the top surface portion 200, and a notch piece 203 is provided at the other end edge. When the lid member 20 is arranged in the wiring groove 11, the direction of the lid member 20 is not particularly limited. For example, the edge of the crossing top surface 220 may be arranged so that the bent piece 202 abuts, or the edge of the crossing top surface 220 and the notch piece 203 may be arranged so as to abut. Further, for example, in two adjacent floor panels 1, the lid member 20 may be arranged so that the bent pieces 202 abut each other, or the lid member 20 may be arranged so that the notch pieces 203 abut each other. , The bent piece 202 and the notch piece 203 may be arranged so as to abut each other.

1 Floor panel 10 Floor panel body 11 Wiring groove 110 Bottom 111 Wall 112 First wiring groove 113 Second wiring groove 12 Crossing groove 150 Top plate 20 Lid member 200 Top surface 201 Cover member 210 Leg 22 Crossing lid 3 Floor structure 30 Floor slab

Claims (4)

A floor panel body made of thermoplastic resin having at least one wiring groove,
Including a metal lid member provided in the wiring groove
The wiring groove includes a bottom portion located below the top plate of the floor panel main body and a wall portion rising from the bottom portion.
The lid member includes a top surface portion facing the bottom portion, and a leg portion extending from the top surface portion toward the bottom portion and provided along the wall portion.
Floor panel. The floor panel main body includes a first wiring groove, a second wiring groove that intersects the first wiring groove, and an intersection groove provided at a portion where the first wiring groove and the second wiring groove intersect. ,
Further provided with a cross lid provided in the cross groove.
The floor panel according to claim 1. Further provided with a cover member covering the top surface portion,
The cover member and the top plate of the floor panel main body are flush with each other.
The floor panel according to claim 1 or 2. It is a floor structure with floor panels on the floor slab.
The floor panel includes a floor panel main body made of a thermoplastic resin having at least one wiring groove, and a metal lid member provided in the wiring groove.
The wiring groove includes a bottom portion located below the upper surface of the floor panel main body and a wall portion rising from the bottom portion.
The lid member includes a top surface portion facing the bottom portion, and a leg portion extending from the top surface portion toward the bottom portion and provided along the wall portion.
Floor structure.

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