JPH0467541B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is applicable to various buildings, especially when wiring such as telephone lines or electric wires, or piping for water supply, gas, etc. is buried under the floor. Particularly, the present invention relates to floor constituent members constituting a floor suitable for burial treatment.

[Prior Art] Floor panels that allow wiring or piping to be inserted under the floor are provided with legs at the four corners of the lower surface of a rectangular panel member, and these legs allow the panel member to be slightly raised from the base. 〓Several types are sold that are arranged so that they are spaced apart.

Furthermore, although these are not publicly known examples as described above, the inventor of the present invention has proposed two types of techniques regarding this type of floor component.

One is a floor member that has a floor decoration applied to the top surface of the board, guide holes for buried wires arranged vertically and horizontally in the board, and a connecting means for connecting adjacent parts of the board (actual). (Gan Sho 61-24735).

One method is to protrude from the board member a plurality of pedestals with a height exceeding the diameter of the buried wires and a partition wall that separates the buried wires, and then attach the board member from the adhesive surface on the bottom surface to the top surface. This is a floor panel in which a plurality of small adhesion holes are formed through the floor panel, and a floor plate member constituting the floor surface is removably disposed on the pedestal (Utility Application No. 150448/1988).

[Problems to be Solved by the Invention] With the recent progress in office automation, various new wiring types are often installed especially in office buildings and the like when various types of OA equipment are introduced. However, if the wiring is exposed every time, accidents are likely to occur and the appearance is not good and there are many problems.

In order to solve this problem, the former type of floor panel with legs has been developed and provided. According to this floor panel with legs, when installing new buried cables such as telephone lines, remove the necessary part of the floor panel, insert the wiring between it and the base, and run it over the base to the specified position. It can be extended to the position of After that, the floor panel that was removed earlier will be reinstalled.

In this way, the above-mentioned floor panel with legs has the advantage of avoiding exposed wiring, but since the various wiring types are only placed in a messy manner on the base, their management tends to be uncertain. There is a problem.

According to the floor member and floor panel proposed by the present inventor, the wiring can be inserted into the guide hole or between the partition walls on the board, so as in the former case, exposed wiring can be avoided. can. Furthermore, in addition to this, since the wiring and piping are inserted in an organized manner between the guide holes or the partition walls on the board, there is also the advantage that management becomes easier.

However, the above technique of the inventor of the present invention is not perfect in consideration of the need for large-diameter piping, the free combination of decorative floor panels, and the ease of molding itself.

An object of the present invention is to be able to process wiring and piping without easily exposing them, and to meet the above-mentioned demands.

[Means for Solving the Problems] The gist of the configuration of the present invention is that a plurality of protective groove members into which piping or wiring are inserted are arranged downward and in parallel, and the protective groove members intersect with these. a plurality of connecting pieces, and between the connecting pieces, another protective groove member intersecting with the protective groove member is arranged upward, and further between the connecting pieces, at the same height as the upper surface of the protective groove member,
A joining plate is interposed to join the floor panels, and in addition, a male and female joining part is formed on the lower end surface of the joining piece for joining other floor constituent members with their lower surfaces facing each other. It is a floor component.

Each of the above-mentioned upward or downward protective groove members is constructed in the shape of a rectangular cylinder, a cylinder, or any other suitable cylinder-shaped member divided in half. As for the protective groove members which are directed upward, as described above, since they are formed between the connecting pieces, a part of the circumferential wall forming the cylindrical half-shape may be formed in common with the above-mentioned connecting pieces. The number of protective groove members is
Although not particularly limited to each, for those facing upward, there may only be room to construct about one, due to the relationship with other constituent members, especially the joint plates similarly constructed between the joint pieces. Regarding the downward protective groove members, since there is no such limitation, the number can be determined freely. In general, about three would be convenient. The dimensions of the protective groove member are also not limited. The downward protective groove members may all have the same size and shape, but it is also good to combine large diameter and small diameter groove members so that they can accommodate piping and wiring of various diameters. For example, as shown above, it is composed of three protective groove members, with the central one having a large dimension,
Those on both sides shall be of smaller size. As for the upward protective groove member, if it is constructed between the two central connecting pieces, it would be straightforward to construct it with dimensions corresponding to the spacing therebetween.

Each of the protective groove members is preferably provided with a connecting male portion at one end and a connecting female portion at the other end so that they can be interconnected with those of adjacent floor constituent members. For example, the connecting male portion may be formed by protruding the end portion of the corresponding protection groove member as it is, or by adjusting the external dimensions to a necessary length. On the other hand, the connecting female part has a structure in which the connecting male part is externally fitted, and the groove internal dimension of the corresponding end of the protective groove member is enlarged, and the groove internal shape is similar to the external shape of the connecting male part and slightly smaller. be constructed in large dimensions.

Further, the connecting piece is constituted by a suitable plate-shaped body.
The number is not particularly limited. For example, about four pieces,
The protective groove members are coupled in a state where they intersect with each other. The connecting pieces are arranged parallel to each other. The lower end surface of each coupling piece is aligned with the lower end surface of the peripheral wall of the protective groove member facing downward, while the upper end surface is aligned with the upper end surface of the peripheral wall of the protective groove member facing upward.

When the joining plates are composed of four joining pieces as described above, two pieces are placed on each of the two on both sides at an appropriate interval, and the top surface of each is slightly recessed. A coupling recess is formed, and a screw hole penetrating from the top surface to the back surface is bored. One or more screw holes are drilled.

Further, it is preferable that the connecting portion is formed by enlarging both ends of both outermost connecting pieces and forming them on the respective lower end surfaces thereof. For the above-mentioned connecting part, a connecting protrusion is provided upright on the lower end surface of the enlarged part at one end of each connecting piece, and a connecting hole into which the above-mentioned connecting protrusion can be inserted is bored in the lower end surface of the enlarged part at the other end. do.

By the way, the above-mentioned floor constituent members are generally formed into a square planar shape as a whole. Of course, if the connecting means of the upward or downward protective groove member is constructed as described above, only the portion of the male connecting portion inserted into the female connecting portion will protrude outside the square.

All the constituent elements of this floor component are integrally molded from plastic, for example, a plastic material mainly made of polypropylene.

Furthermore, the floor panel can be made of wood, plastic, or any other material according to preference.

[Function] Since the present invention is configured as described above, it can be used not only in the case of new construction but also in the construction of floors of existing buildings, as described below.

First, in newly constructed buildings, the floor component of the present invention is, in principle, installed directly on the subfloor. It is also possible to install the floor components of the present invention on existing floors of existing buildings. The present invention is suitable for floors of reinforced concrete buildings, etc.

The floor component of the present invention is installed as follows.

First, a case will be described in which the floor is constructed of only one floor component in the height direction.

First, a suitable floor panel is bonded to the upper side of the floor component in advance. Appropriate materials and patterns are selected in consideration of the nature of the building and its relationship with other interior decorations. This bonding and fixing is performed by the bonding plate. If screw holes are drilled in the joint plate as described above, connect the floor panel from above, insert the screw into the screw hole of the joint plate from the bottom side, and screw this into the floor panel to fix it. . In this way, a required number of floor constituent members with floor panels joined together are prepared. At this time, if the above-mentioned connecting protrusions are formed on the lower end surface of the connecting piece, these are removed.

Thereafter, the floor component is placed on the existing floor or other subsurface.

For example, it is convenient to do this as follows.

First, the floor constituent members are connected in the lateral direction while joining the connecting male part and the connecting female part formed at the ends of the protective groove members. This length should be determined so that there is a certain gap on the side of the room where it is installed. A plurality of floor constituent members are connected in this manner and then placed on the subfloor. Next, the floor components are connected in the same manner to the required length in the lateral direction and placed on the subfloor. Then, it is pressed vertically against the previously arranged floor component group, connecting the connecting female part and the connecting male part of the vertical protection groove member, and also connecting the floor components in the vertical direction. This process is repeated to construct the floor on the subfloor. A certain amount of space is left on the side of the room located at the end of the room in the vertical direction.

If it is necessary to bury telephone lines, electric wires, gas piping, etc., it is preferable to determine in advance the vertical and horizontal directions of the protective groove member of the floor component so as to match them. After completing the above-mentioned work, connect the piping or wiring from the side of the room where the space was left open.

First, if there is an end position diagonally from the start position of the wiring or piping, the piping can be run along the side from the start position to the side of the room, and the wiring or piping can be done in a straight line towards the end position. Extend to position. Then, from this position, the wiring or piping member is inserted into the corresponding protective groove member of the floor component, and guided and extended to the final position using a suitable guide rod or the like. At this time, the wiring or piping members are guided by the protective groove member, and the wiring can be easily extended in a predetermined direction. At the end position, the protective groove member and floor panel at that position may be processed to form a hole for drawing out a wire or the like so that the end thereof can be drawn out.

When the end position of the wiring or piping is in a straight line from the starting position, the wiring or piping member is inserted linearly into the protective groove member at that position and guided and extended to the end position as described above. Naturally, the processing for the protective groove member, floor panel, etc. at the end position is the same as described above.

After wiring and piping are completed as described above, a filling member with an inverted U-shaped cross section is inserted into the gap left on the side of the room. A notch shall be formed so that a protrusion such as a connecting male portion formed at the end of the protective groove member can be inserted therein. If necessary, a floor panel cut to the appropriate size is joined to the upper surface of the filling member.

Different from the above, when the direction of wiring or piping does not match the direction of the protective groove member of the floor component, it is possible to connect the wiring or wiring in a straight line between the holes left on the side of the room as described above. If it is not possible to extend the piping or wiring in the corresponding direction, proceed as follows.

In this case, assume a right-angled triangle whose longest side is the line connecting the start and end positions of the wiring or piping, and run the wiring or piping through the vertical and horizontal protective grooves on the line corresponding to the two short sides to the end position. Do the plumbing. That is, from the starting position of the wiring or piping, through the corresponding vertical or horizontal (upward or downward) protection groove member to the floor component at the right-angled apex of the right triangle, use a guide rod or the like as described above to route the wiring or piping. The piping member is guided and extended, and in the floor component at the position corresponding to the apex, punch out between the upward and downward protective groove members to communicate between the two protective groove members, and bend the direction of the wiring or piping member at right angles. , guiding from one of the vertical or horizontal (upward or downward) protective groove members to the other. After this, the wiring or piping is further guided and extended using a guide rod or the like in the same manner as described above until the end position of the wiring or piping. The procedure at the end position is the same as described above. As mentioned above, when punching between the upward and downward protective groove members, the upper floor panel must be peeled off. After completion of such treatment, the floor panel can be fixed onto the bonding board with adhesive.

Therefore, even in such a case, wiring or piping can be easily installed at any position by applying special measures as described above to at most three floor constituent members.

If you are using particularly large diameter piping, do the following:

On the upper side of the floor component, the same number of floor panels with and without floor panels joined according to the above-described procedure are prepared. Then, the unjoined floor constituent members are joined to the floor constituent members to which the floor panels have been joined, with their lower sides facing each other. As mentioned above, the joining is
The male and female connectors are connected at the lower end surface of the end of the connector piece. As described above, when the connecting portion includes a connecting protrusion and a connecting hole, these are fitted together and fixed together.

After that, install it on the subfloor using the same procedure as above. In this case, the downward protective groove members of both floor components are joined in a facing state, forming a protective tube portion twice the size, so in that direction,
Even piping with relatively large external dimensions can be installed without any problems. The procedure for this piping is also the same as described above.

As described above, it is possible to extremely easily construct a floor including wiring, piping, etc.

[Example] An example of the present invention will be described below based on the drawings.

As shown in FIGS. 1, 3, 4, and 7, two narrow downward protective grooves 1, 1 and a wide downward protective groove 2 are arranged in parallel, These are connected by four connecting pieces 3, 3, . . . . The wide downward protection groove body 2 is disposed between the small width downward protection groove bodies 1, 1. Both are constructed in the shape of a rectangular cylinder with slightly rounded corners cut in half.

One end of the downward protection groove body 1, 1, 2 is extended by about 10 mm while maintaining the external dimensions, and the connecting male part 1a, 1 is extended by about 10 mm.
Let a, 2a. The other end is the connecting male part 1a, 1
Connecting female parts 1b, 1b, 2b are enlarged to an internal size that allows insertion of the connecting female parts 1b, 2a.

Also, between the two connecting pieces 3, 3... on both sides, as shown in Fig. 1, Fig. 2, Fig. 5, Fig. 6, and Fig. 7, two pieces each. Bonding plates 4, 4, . . . for bonding the floor panel 11 are interposed at the same height as the upper surface thereof. Each joining plate 4, 4... is located between the downward protective groove bodies 1, 2 and between the downward protective groove bodies 2, 1, respectively. As particularly shown in FIG. 7, the joining plates 4, 4, . . . are recessed by about 1 mm to form a joining recess 5, and two screw holes 6, 6 are bored in the inside thereof.

Of the above-mentioned connecting pieces 3, 3..., the two on both outer sides are:
As shown in FIG. 1, both ends are enlarged, and the lower end surface of the enlarged one end of the two connecting pieces 3, 3 is shown in FIGS. 2, 3, 4, and 5. , as shown in FIGS. 6 and 7, a connecting protrusion 7 is provided protruding from each other, and a connecting hole 8 of a size that allows the connecting protrusion 7 to fit is bored in the lower end surface of the enlarged portion at the other end. Set up These connecting protrusions 7, 7 and connecting holes 8, 8
is a means for connecting the floor constituent members while facing each other at their lower surfaces.

Furthermore, an upward protective groove 9 is formed between the two central pieces of the connecting pieces 3, 3, etc., as shown in FIGS. 1, 2, 5, and 6. do. A part of its peripheral wall is shared by the connecting pieces 3, 3 on both sides. This groove internal shape is similar to the downward protective groove body 1, 1,
It is the same as 2. One end of this upward protective groove body 9 is
In particular, as shown in FIG. 1, a peripheral wall with a thickness of 2 mm is constructed from the corresponding ends of the connecting pieces 3, 3 while maintaining the groove internal dimensions, and this is made to protrude by about 10 mm to form a connecting male part 9a. do. At the other end, a connecting female part 9b is formed which is enlarged to have an internal dimension into which the connecting male part 9a can be inserted. In addition, the above-mentioned upward protective groove body 9 and downward protective groove body 1,
At the intersection with 1 and 2, as shown in FIGS. 1 and 6, there are punched parts 10a and 10a with thinner walls.
10a and 10b are formed in advance. Note that this upward protective groove body 9 and the downward protective groove body 1, 1,
The length is the same as that of 2. That is, the floor component constructed as described above is formed into a generally square planar shape as a whole.

In this floor component, all of the above-mentioned components are integrally molded from a plastic material mainly made of polypropylene.

When constructing the floor by installing the above-mentioned floor constituent members on the floor base 13, as will be described later, the first
A filling member 1 having a substantially inverted U-shaped cross section as shown in Figure 0.
4. The connecting male parts 1a, 1a, 2a, and 9a can be inserted into this filling member 14 so that when it comes into contact with the side part of the floor component, there is no problem no matter which side part comes into contact with it. Notch 14
a, 14a, and 14b are formed in advance.

Since the embodiment is configured as described above, it can be used not only for newly constructed buildings but also for constructing a floor by overlapping the floor of an existing building.

Here, a case where a floor is constructed on the subfloor 13 of a newly constructed building will be explained as an example.

First, a normal case that does not require particularly large-diameter piping will be explained.

First, a suitable floor panel 11 is joined in advance to the upper side of the floor component. As the floor panel 11, an appropriate material pattern is selected in consideration of the nature of the building in question, the design relationship with other interior decorations, etc. As shown in FIG. 8, the floor panel 11 has connecting male parts 1a, 1a, 2a, 9a.
Position and join with the chisel protruding from the side. In this bonded state, screws 12 are inserted through the screw holes 6, 6 drilled in the coupling recesses 5 of the bonding plates 4, 4..., and the screws 12, 12... are screwed into the back side of the floor panel 11 and fixed. It is something to do. In this way, the floor panels 11 are bonded and fixed to the required number of floor constituent members. In this case, since it will get in the way of installation on the flooring 13, the connection protrusions 7, 7 should be removed before installation.
Remove it. Breakage can be removed by applying a blow from the side.

After that, the plurality of floor constituent members are arranged on the floor base 13.

At this time, the downward protective grooves 1, 1, 2 and the upward protective grooves 1, 1, 2 of the above-mentioned floor constituent members are connected in advance to the wiring of telephone lines or electric wires, gas piping, etc. that are to be piped or routed on the floor to be formed here. The direction of the protective groove body 9 is determined, which direction is vertical and which direction is horizontal.

After doing so, as shown in Figure 9, first,
The floor constituent members are sequentially moved laterally (if such a direction is decided), and their respective downward protective grooves 1, 1,
The connecting male portions 1a, 1a, 2a and the female connecting portions 1b, 1b, 2b formed at the ends of the two are coupled and connected. This connection length is such that the filling member 14 is connected to the lateral side of the room as shown in FIGS. 9 and 11.
Set it so that there is a gap equal to the width of . Then, it is placed on the floor base 13 from the end of the room. Next, in the same manner, the floor constituent members are connected by the required length in the lateral direction, and these are placed next to the floor constituent member of the above example on the floor base 13. Next, press these toward the floor component group arranged earlier, and connect the connecting female part 9b of the vertically upward protective groove body 9.
and the connecting male portion 9a are fitted and connected, and the floor constituent members are also connected in the vertical direction. Repeat these operations to proceed with the installation of the floor constituent members, and at the end of the vertical installation, the width of the filling member 14 is removed in the same way as above.
Leave a gap.

After this, piping or wiring is carried out from the lateral side ends or the longitudinal rear end of the room.

First, if there is an end position diagonally from the starting position (located at the horizontal side edge or vertical rear end of the room) of the wiring or piping (located at the horizontal side edge or vertical rear edge of the room), from the starting position to the indoor Piping or wiring is run along the wall between the lateral side ends or the longitudinal rear end, and the wiring is extended to a position where the wiring or piping can be done linearly toward the end position. Then, from that position, insert the wiring or piping member into the corresponding downward or upward protective groove body 1, 1, 2, 9 of the floor component,
This is guided and extended to the final position using a suitable guide rod or the like. At this time, the wiring or piping members can be easily extended in a predetermined direction by being guided by the downward or upward protective grooves 1, 1, 2, and 9. To draw out the wiring or piping at the end position from the upward protective groove member 9, it is only necessary to drill a pull-out hole in the floor panel 11, and to draw out the wiring or piping from the downward protective groove member 1, 1, 2.
In the case of punching, further punching planned parts 10a, 10a,
10b may be punched out.

If the end position of the wiring or piping is in a straight line from the starting position, insert the wiring or piping member directly into the downward or upward protective grooves 1, 1, 2, 9 at that position and proceed as described above. and extend the guidance to the end position. The processing at the end position is naturally the same as in the above case.

After the wiring and piping are completed as described above, the gaps left at the side and rear ends of the room are
As shown in FIGS. 9 and 11, the filling member 1
Charge 4. At this time, the connecting male parts 1a, 2a (or 9a), 1a protruding from the downward or upward protection groove bodies 1, 2 (or 9), 1 are the cutout parts 14a, 14b and 14a, so there is no problem. A floor panel 11 cut to a corresponding size is joined to the upper surface of the filling member 14. The floor panel 11 is fixed with screws.

By the way, unlike the above, the wiring or piping direction is downward or upward of the floor structural member 1, 1,
If the directions do not match those in 2 and 9, extend the piping or wiring in the relevant direction so that the piping or wiring can be run in a straight line between the lines left on the side of the room as described above. If this is not possible, proceed as follows.

In this case, assume a right-angled triangle whose longest side is the line connecting the starting position and ending position of the wiring or piping, and place the downward or upward protective grooves 1 and 1 on the line corresponding to the two short sides. , 2, and 9 to the end position. That is, from the starting position of the wiring or piping, the corresponding downward or upward protective groove 1,
1, 2, and 9 to the floor component corresponding to the right-angled apex of the right triangle, guide and extend the wiring or piping member using a guide rod, etc., in the same way as above, and in the floor component corresponding to the apex, the bottom The spaces between the forward protection groove bodies 1, 1, 2 and the upward protection groove body 9 are punched out using planned punching parts 10a, 10a, 10b to communicate between both protection groove bodies 1, 1, 2 and 9, Here, the direction of the wiring or piping member is bent at right angles and guided from one of the downward protective grooves 1, 1, 2 and the upward protective groove 9 to the other. After this, the wiring or piping is further guided and extended using a guide rod or the like in the same manner as described above until the end position of the wiring or piping. The procedure at the end position is the same as described above. In addition, as mentioned above, between the upward protective groove body 9 and the downward protective groove body 1, 1, 2, the punching planned portions 10a, 10 are formed.
When punching with a and 10b, the upper floor panel 1
1 will be removed. After the above-described processing is completed, the floor panel 11 can be adhesively fixed by applying an adhesive onto the joining plate 4. If the screws 12, 12... are removed, the adhesive overflowing to the bottom surface through the screw holes 6, 6... will solidify into a spherical shape, thereby strengthening the fixed state.

Therefore, even in such a case, wiring or piping can be easily routed to any position by applying special measures as described above to at most three floor constituent members.

Next, a case where a particularly large diameter piping is installed will be explained.

In this case, the same number of floor constituent members to which the floor panel 11 is joined to the upper part and floor constituent members to which the floor panel 11 is not joined are prepared in advance.

As shown in FIG. 12, the floor panels 11 are joined with the joined side facing upward and the unjoined side facing down, with their lower sides facing each other. This connection is achieved by drilling the connecting protrusions 7, 7 formed on the lower surfaces of the ends of the connecting pieces 3, 3 of one floor component into the lower surfaces of the ends of the connecting pieces 3, 3 of the other floor component. Fits into the connecting holes 8, 8, and connects the other connecting protrusion 7, 7 to one connecting hole 8, 8.
It is fitted and fixed.

In this way, the downward protection grooves 1, 1, 2 of the upper and lower floor constituent members face each other and are joined, so that a large-diameter guide protection hole is formed.

Therefore, the large-diameter guide and protection hole formed above is arranged on the subfloor 13 in such a manner that the direction of the large-diameter guide protection hole is aligned with the required direction of the large-diameter piping and wiring.

The arrangement of the floor member group composed of the above-mentioned pair of floor constituent members and the floor panel on the floor base 13 is as follows:
This can be carried out using the same procedure as in the above case.

Construction of piping and wiring is also the same as in the case described above.

[Effects of the Invention] According to the present invention, construction of the floor of a building can be completed extremely easily by simply bonding and fixing the floor panels and then simply placing them on the floor subfloor while interconnecting them. Furthermore, the protective groove member of this floor component can prevent exposed wiring of piping and wiring. The dimensions of these protective groove members can be freely changed to correspond to whether the piping and wiring to be guided and protected have a small diameter or a large diameter.

Furthermore, in the present invention, when constructing piping and wiring, the destination of the wiring and piping is guided by the protective groove member, and lateral deflection is restricted, so that work efficiency is improved. In addition, after the wiring and piping are installed, they are surrounded by a protective groove member, so that they are protected from various kinds of damage, such as rats and the like.

Even if further wiring is required due to the addition of a telephone after the construction of the floor, the additional wiring can be easily done through the above-described work steps.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention.
The figure is a plan view, Figure 2 is a front view, Figure 3 is a right side view, Figure 4 is a left side view, Figure 5 is a rear view, and Figure 6 is a rear view.
The figure is a sectional view taken along the line A-A in Fig. 1, Fig. 7 is a sectional view taken along the line B-B in Fig. 2, Fig. 8 is a rear view with the floor panel bonded and fixed and the connecting protrusion removed, and Fig. 9 is a sectional view taken along the line A-A in Fig. 1. The figure is a schematic diagram of the rear side of the floor installed on the subfloor, Figure 10 is a perspective view of the filling member, Figure 11 is a schematic plan view showing the configuration of the floor, and Figure 12 is the floor with the floor panels bonded and fixed. FIG. 3 is a front view showing a state in which another floor component is joined to the lower surface of the component in a facing state. 1, 2...Downward protective groove body, 1a, 2a...Connection male part, 1b, 2b...Connection female part, 3...Connection piece,
4...Joining plate, 5...Joining recess, 6...Screw hole,
7... Connecting projection, 8... Connecting hole, 9... Downward protective groove body, 9a... Connecting male part, 9b... Connecting female part, 1
0a, 10b... Part to be punched, 11... Floor panel, 12... Screw, 13... Floor base, 14...
Filling material.

Claims (1)

[Scope of Claims] 1. A plurality of protection groove members into which piping or wiring are inserted are arranged downward and in parallel, and the protection groove members are connected by a plurality of connection pieces that intersect with these, and between the connection pieces, Another protective groove member that intersects with the protective groove member is configured upward, and is further provided between the connecting pieces at the same height as the upper surface thereof.
A joining plate is interposed to join the floor panels, and in addition, a male and female joining part is formed on the lower end surface of the joining piece for joining other floor constituent members with their lower parts facing each other. A floor structural member characterized by: