Floor support member and floor support structure comprising same

Abstract

The present invention comprises: a wooden beam material (2a) that extends in a longitudinal direction (L1) and has one surface (2a1) facing one side in a first orthogonal direction (D1); and a metal floor support material (2b) that includes a placement part (2b1) that has a facing surface (2b1a) and a placement surface (2b1b) which faces opposite the facing surface (2b1a) and on which a floor surface material (3) is to be placed, and an attachment part (2b2) for attaching the placement part (2b1) to the beam material (2a) in a state in which the facing surface (2b1a) and the one surface (2a1) are separated from each other in the first orthogonal direction (D1). The attachment part (2b2) has an extension part (2b2a) that extends toward the beam material (2a) from the center part of the placement part (2b1) in a second orthogonal direction (D2) that is orthogonal to the first orthogonal direction (D1) such that a space (S1) between the facing surface (2b1a) and the one surface (2a1) is opened along both the longitudinal direction (L1) and the second orthogonal direction (D2) in a state of being attached to the beam material (2a).

Description

Floor support member and floor support structure equipped with same

[0001] The present invention relates to a floor support member for supporting a floor surface material and a floor support structure equipped with the same.

[0002] A conventional fastening structure for an extruded cement board floor is known, for example, from Patent Document 1. This fastening structure includes an extruded cement board floor (hereinafter simply referred to as a board floor), a beam for supporting the board floor, and an extruded cement board floor fitting (hereinafter simply referred to as a fitting) for fastening the extruded cement board floor to the beam.

[0003] The metal fittings include a Z-shaped clip material, a fixing nut and a pivot bolt for fixing the base end of the Z-shaped clip material to the backside of the wooden floor. By tightening the pivot bolt against the fixing nut, the beam material (the flange portion of the beam material) is clamped between the tip of the Z-shaped clip material and the wooden floor, thereby fastening the wooden floor to the beam material.

[0004] However, the metal fittings described in Patent Document 1 are intended for application to metal beams having flanges, and cannot be applied to wooden beams that do not have flanges.

[0005] Japanese Patent Application Laid-Open No. 2005-264438

[0006] An object of the present invention is to provide a floor support member that has wooden beams and is applicable to a mounting structure for a floor surface material on metal beams, and a floor support structure that includes the same.

[0007] In order to solve the above problem, one aspect of the present invention provides a floor support member for supporting a floor material, comprising: a wooden beam member that extends in a predetermined longitudinal direction and has one side facing in a first orthogonal direction perpendicular to the longitudinal direction; a substrate portion that has an opposing side facing the one side and a substrate surface facing opposite the opposing side and on which the floor material is placed; an attachment portion for attaching the substrate portion to the beam member with the opposing side and the one side spaced apart in the first orthogonal direction; and a metal floor support material, wherein the attachment portion has an extension portion that extends from the center of the substrate portion in the second orthogonal direction toward the beam member so that when attached to the beam member, the space between the opposing side and the one side is open in both the longitudinal direction and a second orthogonal direction perpendicular to the first orthogonal direction.

[0008] In addition, a floor support structure relating to another aspect of the present invention comprises the floor support member, a plurality of floor materials placed on the support surface of the floor support member, a clamping portion arranged in the space between the opposing surface and the one surface and clamping the placed portion between the floor material, a fixing portion fixed to the floor material, and a connecting portion connecting the clamping portion and the fixing portion, and a plurality of mounting fixtures for attaching the floor materials to the floor support member, wherein the plurality of floor materials comprise a first floor material placed on one side of the mounting portion in the second orthogonal direction on the support surface, and a second floor material placed on the other side of the mounting portion in the second orthogonal direction on the support surface.

[0009] According to the present invention, a structure for attaching a floor surface material to a metal beam can be applied, as well as having a wooden beam.

[0010] Fig. 1 is a perspective view showing a floor support structure according to an embodiment of the present invention. Fig. 2 is a perspective view showing a part of the floor support structure of Fig. 1 in an exploded state. Fig. 3 is a front view of the floor support structure of Fig. 1. Fig. 4 is a cross-sectional view taken along line IV-IV of Fig. 3.

[0011] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following describes embodiments of the present invention with reference to the accompanying drawings. Note that the following embodiments are examples that embody the present invention and are not intended to limit the technical scope of the present invention.

[0012] FIG. 1 is a perspective view showing a floor support structure 1 according to an embodiment of the present invention.

[0013] Referring to Figures 1 and 2, the floor support structure 1 comprises a pair of floor support members 2A, 2B extending in a predetermined longitudinal direction L1 and spaced apart in a second orthogonal direction D2 perpendicular to the longitudinal direction L1, a plurality of floor surface materials 3 extending in the second orthogonal direction across both floor support members 2A, 2B and aligned in the longitudinal direction L1, a plurality of elastic members 4 provided between the floor support members 2A, 2B and the floor surface materials 3, and a plurality of mounting means 5 for mounting the floor surface materials 3 to the floor support members 2A, 2B.

[0014] Although the floor support members 2A and 2B are arranged symmetrically in the second orthogonal direction, they have the same configuration. Therefore, the following description will be given of the configuration of the floor support member 2A, and a description of the floor support member 2B will be omitted.

[0015] 1 to 4, the floor support member 2A is for supporting the floor surface material 3. Specifically, the floor support member 2A includes a wooden beam 2a extending in a longitudinal direction L1 and having one surface 2a1 facing a first orthogonal direction D1 that is orthogonal to the longitudinal direction L1 and a second orthogonal direction D2, a metal floor support member 2b extending in the first orthogonal direction D1 and attached to the beam 2a, and a plurality of fixing means 2c for fixing the floor support member 2b to the beam 2a.

[0016] The beam 2a has a first groove 2a2 that opens toward the floor support 2b (the support portion 2b1) and extends in the longitudinal direction L1 at a position overlapping an extension portion 2b2a (described later) of the floor support 2b when viewed along the first orthogonal direction D1, and two second grooves 2a3 that open toward the support portion 2b1 and extend in the second orthogonal direction D2 at positions overlapping a connection portion 2b3 (described later) of the floor support 2b when viewed along the first orthogonal direction D1. The first groove 2a2 extends the entire length of the beam 2a in the longitudinal direction L1 and opens toward both ends of the beam 2a in the longitudinal direction L1. The first groove 2a2 is also located at the center of the beam 2a in the second orthogonal direction D2. The second groove 2a3 is a groove that extends across the entire width of the beam 2a in the second orthogonal direction D2 at both ends of the beam 2a in the longitudinal direction L1 and opens toward both sides in the second orthogonal direction D2 at both end surfaces in the second orthogonal direction D2.

[0017] The floor support material 2b comprises a supporting portion 2b1 on which the floor surface material 3 is placed, an attachment portion 2b2 for attaching the supporting portion 2b1 to the beam material 2a, four connection portions 2b3 connecting the attachment portion 2b2 and the supporting portion 2b1, and a second insertion portion 2b4 extending from the connection portion 2b3 in the first orthogonal direction D1 and connected to the first insertion portion 2b2b of the attachment portion 2b2 described later and inserted into the second groove 2a3.

[0018] The support portion 2b1 has an opposing surface 2b1a that faces one surface 2a1 of the beam 2a, and a support surface 2b1b that faces the opposite side from the opposing surface 2b1a and on which the floor material 3 is placed. The support portion 2b1 extends in the longitudinal direction L1 over the entire length of the beam 2a. The support portion 2b1 is formed in a substantially rectangular plate shape when viewed along the first orthogonal direction D1.

[0019] The mounting portion 2b2 is used to mount the mounting portion 2b1 to the beam 2a with the opposing surface 2b1a and one surface 2a1 spaced apart in the first orthogonal direction D1. Specifically, the mounting portion 2b2 has an extension portion 2b2a extending from the center of the mounting portion 2b1 in the second orthogonal direction D2 toward the beam 2a, and a first inserted portion 2b2b extending from the extension portion 2b2a in the first orthogonal direction D1 and inserted into the first groove 2a2. The extension portion 2b2a and the first inserted portion 2b2b extend in the longitudinal direction L1 over the entire length of the beam 2a. The first inserted portion 2b2b is fixed to the beam 2a with a plurality of fixing means 2c (see FIGS. 2 to 4) while inserted into the first groove 2a2. The fixing means 2c are arranged side by side in the longitudinal direction L1 with a gap therebetween. Specifically, the fixing means 2c includes a bolt (penetrating member) 2c1 that penetrates the beam 2a and the first inserted portion 2b2b in the second orthogonal direction D2, and a nut 2c2 that threads onto the bolt 2c1 to fix the bolt 2c1 to the beam 2a and the floor support 2b in a non-removable state in the second orthogonal direction D2. The bolt 2c1 penetrates the beam 2a and the first inserted portion 2b2b in the second orthogonal direction D2 so that relative displacement between the floor support 2b and the beam 2a in the first orthogonal direction D1 is restricted with a space S1 (see FIG. 4) formed between the opposing surface 2b1a and the one surface 2a1. In other words, when the floor support 2b is attached to the beam 2a by the fixing means 2c, the extension portion 2b2a of the floor support 2b is positioned so as to be exposed from the beam 2a in the first orthogonal direction D1. As a result, the space between the opposing surface 2b1a and the one surface 2a1 is opened in both directions in the second orthogonal direction D2 of the extension portion 2b2a. Note that the beam 2a and the first inserted portion 2b2b each have a plurality of insertion holes (reference numerals omitted) aligned in the longitudinal direction L1 for inserting the bolts 2c1 therethrough.

[0020] Two connecting portions 2b3 are provided at each end of the beam 2a in the longitudinal direction L1. Specifically, the two connecting portions 2b3 extend from the extension portion 2b2a to both sides in the second orthogonal direction D2 at both ends of the beam 2a in the longitudinal direction L1 and connect the extension portion 2b2a to the mounting portion 2b1.

[0021] The floor surface materials 3 are placed on the mounting surfaces 2b1b of the floor support members 2A and 2B. As shown in Fig. 1, three floor surface materials 3 are provided on the pair of floor support members 2A and 2B and aligned in the longitudinal direction L1. Furthermore, as shown by the two-dot chain lines in Fig. 4, the multiple floor surface materials 3 include a first floor surface material 3a (shown by the solid line) placed on one side (the right side in the figure) of the mounting portion 2b2 in the second orthogonal direction D2 on the mounting surface 2b1b, and a second floor surface material 3b (shown by the two-dot chain line) placed on the other side of the mounting portion 2b2 in the second orthogonal direction D2 on the mounting surface 2b1b with a gap between them.

[0022] The multiple elastic members 4 are interposed between the multiple floor panels 3 and the floor support members 2A, 2B to suppress transmission of vibrations generated in the floor panel 3 to the floor support members 2A, 2B. As shown in Fig. 1, the multiple elastic members 4 include short elastic members 4a, each of which has a relatively short dimension in the longitudinal direction L1 and is provided at both ends of the floor support members 2A, 2B, and long elastic members 4b, each of which has a relatively long dimension in the longitudinal direction L1 and is provided between the both ends of the floor support members 2A, 2B. The short elastic members 4a are arranged at the corners of one floor panel 3. On the other hand, the long elastic members 4b are arranged across the corners of two floor panels 3 adjacent to each other in the longitudinal direction L1.

[0023] Each of the multiple mounting means 5 includes a mounting fixture 5a for mounting the floor surface material 3 to the floor support members 2A and 2B, and a fixing fixture 5b for fixing the mounting fixture 5a to the floor surface material 3. As shown in FIG. 4 , the mounting fixture 5a includes a clamping portion 5a1 that is disposed in the space S1 between the opposing surface 2b1a and the one surface 2a1 and clamps the support portion 2b1 between the floor surface material 3, a fixing portion 5a2 that is fixed to the surface of the floor surface material 3 facing the beam 2a, and a connecting portion 5a3 that connects the clamping portion 5a1 and the fixing portion 5a2. The fixing fixture 5b is inserted into the floor surface material 3 through an insertion hole 5a2a formed in the fixing portion 5a2 of the mounting fixture 5a and is fixed to the floor surface material 3 in a non-removable state. In this embodiment, the fixing fixture 5b is formed by a bolt that is threaded into a fixing nut fixed in the floor surface material 3. The fixing device 5b may be formed of a rivet or the like that is inserted into and fixed to the floor surface material 3. The connecting portion 5a3 connects the clamping portion 5a1 and the fixing portion 5a2 so that the clamping portion 5a1 is positioned farther from the floor surface material 3 than the fixing portion 5a2 in the first orthogonal direction D1.

[0024] In this embodiment, one mounting means 5 is provided between one end of one floor surface material 3 in the second orthogonal direction D2 and the floor support member 2A, and one between the other end of one floor surface material 3 in the second orthogonal direction D2 and the floor support member 2B. As shown in Figure 3, the positions of the mounting means 5 and the fixing means 2c are set at different positions in the longitudinal direction L1.

[0025] As described above, according to the embodiment, the spaces S1 on both sides of the extension portion 2b2a in the second orthogonal direction D2 are open to both sides in the second orthogonal direction D2. Therefore, for example, by sandwiching one portion of the extension portion 2b2a of the placement portion 2b1 between the floor surface material 3 and the mounting means 5 attached to the floor surface material 3 in the first orthogonal direction D1, the floor surface material 3 can be attached to the floor support members 2A and 2B. Therefore, the mounting structure of the floor surface material 3 to the metal beam can be applied.

[0026] Furthermore, in the above-described configuration in which two floor support members 2A, 2B are provided spaced apart in the second orthogonal direction D2 and the floor surface material 3 is arranged to straddle the two floor support members 2A, 2B, the space S1 can be used to restrict relative movement of the two floor support members 2A, 2B in opposite longitudinal directions, i.e., to improve the horizontal rigidity of the frame. Specifically, by arranging the floor surface material 3 so as to straddle the first surfaces 2a1 of the two floor support members 2A, 2B and fixing the surface material to the first surfaces 2a1 of both floor support members 2A, 2B, the relative movement of the two floor support members 2A, 2B in opposite longitudinal directions L1 can be restricted. Furthermore, horizontal rigidity can also be improved by placing a brace connecting the two floor support members 2A, 2B through the space S1 (e.g., connecting it to the connection portion 2b3 of the floor support members 2A, 2B).

[0027] In the above embodiment, the connecting portion 2b3 can improve the bending rigidity of the support portion 2b1 with the extension portion 2b2a as the base point. Therefore, even if the support portion 2b1 is subjected to a relatively large load, for example, when a pillar is erected on the floor support 2b, the support portion 2b1 can be prevented from bending and deforming with the extension portion 2b2a as the base point.

[0028] A relatively large load is applied to both ends of the beam 2a, for example, when a pillar is erected at each end. In the above embodiment, the connecting portions 2b3 are provided at both ends of the beam 2a in the longitudinal direction L1, and therefore the portions of the support portion 2b1 to which the large load is applied can be efficiently reinforced by the connecting portions 2b3.

[0029] In the above embodiment, the first inserted portion 2b2b is inserted into the first groove 2a2, and the second inserted portion 2b4 is inserted into the second groove 2a3. Since the first inserted portion 2b2b and the second inserted portion 2b4, which extend in directions perpendicular to each other, are fitted (inserted) into the beam 2a, it is possible to reliably restrict the relative displacement of the floor support member 2b with respect to the beam 2a in the longitudinal direction L1 and the second orthogonal direction D2.

[0030] In the above embodiment, while the relative displacement of the floor support member 2b with respect to the beam member 2a in the longitudinal direction L1 and the second orthogonal direction D2 is restricted as described above, the relative displacement of the floor support member 2b with respect to the beam member in the first orthogonal direction D1 can be further restricted by the bolt 2c1. Therefore, the relative displacement of the floor support member 2b with respect to the beam member 2a can be reliably restricted in three mutually orthogonal directions (the longitudinal direction L1, the first orthogonal direction D1, and the second orthogonal direction D2).

[0031] As described above, in order to restrict the relative displacement of the floor support member 2b with respect to the beam member 2a in the first orthogonal direction D1, it is also possible to provide the bolt 2c1 on the beam member 2a and the floor support member 2b in a state in which the bolt 2c1 is movable in the second direction. However, in this case, there is a risk that the bolt 2c1 may come out of the beam member 2a and the floor support member 2b in the second orthogonal direction D2 during transportation. Therefore, as in the above embodiment, by fixing the bolt 2c1 in a non-removable state in the second orthogonal direction D2 with the nut 2c2, the beam member 2a and the floor support member 2b can be integrated in advance at the factory, and the assembled state can be reliably maintained even when transporting them to the site.

[0032] The present invention is not limited to the above-described embodiment, and the following aspects may also be adopted, for example.

[0033] In the above embodiment, the supporting portion 2b1 and the mounting portion 2b2 extend over the entire length of the beam 2a in the longitudinal direction L1, but the dimensions of the supporting portion 2b1 and the mounting portion 2b2 in the longitudinal direction L1 may be shorter than the dimensions of the beam 2a in the longitudinal direction L1.

[0034] In addition, in the above embodiment, the floor support 2b has been described as having a plurality of connecting portions 2b3 and second inserted portions 2b4, but the floor support 2b may have at least one connecting portion 2b3 and one second inserted portion 2b4. In this case, the connecting portion 2b3 may extend from the extension portion 2b2a to one side in the second orthogonal direction.

[0035] In the above embodiment, the floor support members 2A and 2B have been described as having a plurality of fixing means 2c, but it is sufficient that at least one fixing means 2c is provided for each floor support member.

[0036] In the above embodiment, a configuration has been described in which the plurality of floor surface materials 3 include a first floor surface material 3a placed on one side of the mounting portion 2b2 in the second orthogonal direction D2 on the mounting surface 2b1b and a second floor surface material 3b placed on the other side of the mounting portion 2b2 in the second orthogonal direction D2 on the mounting surface 2b1b. However, the number of floor surface materials 3 placed on one floor support material 2b is not limited to two, and may be one, three, or more.

[0037] The above-described specific embodiments mainly include inventions having the following configurations.

[0038] In order to solve the above problem, one aspect of the present invention provides a floor support member for supporting a floor material, comprising: a wooden beam member that extends in a predetermined longitudinal direction and has one side facing in a first orthogonal direction perpendicular to the longitudinal direction; a substrate portion that has an opposing side facing the one side and a substrate surface facing opposite the opposing side and on which the floor material is placed; an attachment portion for attaching the substrate portion to the beam member with the opposing side and the one side spaced apart in the first orthogonal direction; and a metal floor support material, wherein the attachment portion has an extension portion that extends from the center of the substrate portion in the second orthogonal direction toward the beam member so that when attached to the beam member, the space between the opposing side and the one side is open in both the longitudinal direction and a second orthogonal direction perpendicular to the first orthogonal direction.

[0039] According to the floor support member, the spaces on both sides of the extension portion in the second orthogonal direction are open to both sides in the second orthogonal direction. Therefore, for example, the floor material can be attached to the floor support member by sandwiching one portion of the extension portion of the mounting portion between the floor material and a metal fitting attached to the floor material in the first orthogonal direction. Therefore, the mounting structure for the floor material to the metal beam can be applied.

[0040] Furthermore, when two floor support members are provided spaced apart in the second orthogonal direction and a floor panel is placed across the two floor support members, the space can be used to restrict the relative longitudinal movement of the two floor support members in opposite directions, i.e., to improve the horizontal rigidity of the structure. Specifically, by placing a panel across one side of the two floor support members and fixing the panel to one side of both floor support members, the relative longitudinal movement of the two floor support members in opposite directions can be restricted. Furthermore, horizontal rigidity can also be improved by placing a brace connecting the two floor support members through the space.

[0041] In the floor support member, it is preferable that the floor support member further has at least one connecting portion that extends from the extension portion in the second orthogonal direction and connects the extension portion and the placement portion.

[0042] The floor support member has a connecting portion that improves the bending rigidity of the support portion, with the extension portion serving as the base point. Therefore, even if the support portion is subjected to a relatively large load, such as when a pillar is erected on the floor support, the support portion can be prevented from bending and deforming with the extension portion as the base point.

[0043] In the floor support member, it is preferable that the extension portion and the placing portion extend in the longitudinal direction over the entire longitudinal length of the beam material, and that the connection portion is provided at both ends of the beam material in the longitudinal direction.

[0044] A relatively large load is applied to both ends of the beam, such as when pillars are erected at the ends. In the floor support member, a connection part is provided at each end of the longitudinal direction of the beam, so that the part of the support part to which a large load is applied can be efficiently reinforced by the connection part.

[0045] In the floor support member, it is preferable that the beam material has a first groove that opens toward the supporting portion at a position overlapping the extension portion when viewed along the first orthogonal direction and extends in the longitudinal direction, and a second groove that opens toward the supporting portion at a position overlapping the connection portion when viewed along the first orthogonal direction and extends in the second orthogonal direction, the mounting portion has a first inserted portion extending from the extension portion in the first orthogonal direction and inserted into the first groove, and the floor support material has a second inserted portion extending from the connection portion in the first orthogonal direction and connected to the first inserted portion and inserted into the second groove.

[0046] According to the floor support member, the first inserted portion is inserted into the first groove, and the second inserted portion is inserted into the second groove. Since the first inserted portion and the second inserted portion, which extend in directions perpendicular to each other, are fitted (inserted) into the beam, it is possible to reliably restrict the relative displacement of the floor support member with respect to the beam in the longitudinal direction and the second orthogonal direction.

[0047] It is preferable that the floor support member further includes a penetrating member that penetrates the beam and the first inserted portion in the second orthogonal direction so that the relative displacement between the floor support member and the beam in the first orthogonal direction is restricted while the space is formed between the opposing surface and the one surface.

[0048] With the relative displacement of the floor support material relative to the beam restricted in the longitudinal direction and the second orthogonal direction as described above, the penetration member can further restrict the relative displacement of the floor support material relative to the beam in the first orthogonal direction, thereby reliably restricting the relative displacement of the floor support material relative to the beam in three mutually orthogonal directions (the longitudinal direction, the first orthogonal direction, and the second orthogonal direction).

[0049] In the floor support member, it is preferable that the penetrating member is fixed to the beam and the floor support member in a state where it is prevented from slipping out in the second orthogonal direction.

[0050] As described above, it is possible to provide the beam and floor support with a penetrating member that is movable in the second direction to restrict the relative displacement of the floor support with respect to the beam in the first orthogonal direction. However, in this case, there is a risk that the penetrating member may come out of the beam and floor support in the second orthogonal direction during transportation. Therefore, by fixing the penetrating member in a state where it is prevented from coming out in the second orthogonal direction, as in the floor support member described above, the beam and floor support can be integrated in advance at the factory, and the assembled state can be reliably maintained even when transported to the site.

[0051] In addition, a floor support structure relating to another aspect of the present invention comprises the floor support member, a plurality of floor materials placed on the support surface of the floor support member, a clamping portion arranged in the space between the opposing surface and the one surface and clamping the placed portion between the floor material, a fixing portion fixed to the floor material, and a connecting portion connecting the clamping portion and the fixing portion, and a plurality of mounting fixtures for attaching the floor materials to the floor support member, wherein the plurality of floor materials comprise a first floor material placed on one side of the mounting portion in the second orthogonal direction on the support surface, and a second floor material placed on the other side of the mounting portion in the second orthogonal direction on the support surface.

Claims

1. A floor support member for supporting a floor material, comprising: a wooden beam extending in a predetermined longitudinal direction and having one side facing in a first orthogonal direction perpendicular to the longitudinal direction; a resting portion having an opposing side facing the one side and a resting side facing the opposite side of the opposing side and on which the floor material is placed; an attachment portion for attaching the resting portion to the beam with the opposing side and the one side spaced apart in the first orthogonal direction; and a metal floor support member having the attachment portion, wherein the attachment portion has an extension portion extending from the center of the resting portion in the second orthogonal direction toward the beam so that when attached to the beam, the space between the opposing side and the one side is open in both the longitudinal direction and a second orthogonal direction perpendicular to the first orthogonal direction.

2. A floor support member as described in claim 1, wherein the floor support material further has at least one connecting portion extending from the extension portion in the second orthogonal direction and connecting the extension portion and the placing portion.

3. A floor support member as described in claim 2, wherein the extension portion and the resting portion extend in the longitudinal direction over the entire longitudinal length of the beam material, and the connection portion is provided at both ends of the beam material in the longitudinal direction.

4. A floor support member as described in claim 3, wherein the beam material has a first groove that opens toward the restraint portion at a position overlapping the extension portion when viewed along the first orthogonal direction and extends in the longitudinal direction, and a second groove that opens toward the restraint portion at a position overlapping the connection portion when viewed along the first orthogonal direction and extends in the second orthogonal direction, the mounting portion has a first inserted portion that extends from the extension portion in the first orthogonal direction and is inserted into the first groove, and the floor support material has a second inserted portion that extends from the connection portion in the first orthogonal direction and is connected to the first inserted portion and is inserted into the second groove.

5. A floor support member as described in claim 4, further comprising a penetrating member that penetrates the beam and the first inserted portion in the second orthogonal direction so that relative displacement between the floor support member and the beam in the first orthogonal direction is restricted when the space is formed between the opposing surface and the one surface.

6. A floor support member as described in claim 5, wherein the penetrating member is fixed to the beam and the floor support member in a state where it is prevented from slipping out in the second orthogonal direction.

7. A floor support structure comprising: a floor support member according to any one of claims 1 to 6; a plurality of floor surfaces placed on the placement surface of the floor support member; a clamping portion disposed in the space between the opposing surface and the one surface and clamping the placed portion between itself and the floor surface material, a fixing portion fixed to the floor surface material, and a connecting portion connecting the clamping portion and the fixing portion, and a plurality of mounting fixtures for attaching the floor surface material to the floor support member, wherein the plurality of floor surfaces include a first floor surface material placed on one side of the mounting portion in the second orthogonal direction on the placement surface, and a second floor surface material placed on the other side of the mounting portion in the second orthogonal direction on the placement surface.

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