JPH11256806A - Floor panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase capacity capable of wiring a cable in the case whore the cable for power line, information line, etc., is to be pulled out, at the same time, position a core to a recess section and to make it possible to increase bearing strength by a wall piece section in the rear of a wiring pulling out notch section in the case load is applied to a cover. SOLUTION: A wiring pulling out notch section 9 is provided at the peripheral surface end of a floor panel 8. An overlapping joint part between the peripheral surface end of a top plate 6 in the wiring pulling out notch section 9 and the peripheral surface collar piece 4 of a bottom plate 5 is used for a cover mounting projection 11 for mounting a cover 10. In the wiring pulling out notch section 9, the lower part of a wall piece section 2 in the bottom plate 5 is made as a vertical piece 12 and, at the same time, the upper part is made as an inclined piece 13 inclining so as to become the outward with the movement upward to the peripheral surface collar piece 4 constituting the cover mounting projection 11 from the vertical piece 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor panel used for a double floor system called a free access floor which is widely used as a wiring system in an office in an office building or a computer building. .

[0002]

2. Description of the Related Art In recent years, a double-floor system has been adopted to cope with an increase in the amount of electric power, telephone and data. This double floor system, for example, has a large number of support legs standing on a floor substrate such as a concrete slab, and supports the floor panel with the support legs, thereby providing a gap between the floor panel and the floor substrate. Is used as a wiring space, and cables such as power lines and information lines are arranged in the wiring space.

As the floor panel 8 used in the above-mentioned double floor system, for example, as shown in FIG. 9, the wall piece 2 is raised from the outer peripheral end of the bottom plate 1 and is surrounded by the wall piece 2. The bottom portion 5 becomes a concave portion 3 and the outer peripheral flange piece 4 projects laterally outward from an upper end portion of the wall piece portion 2 to form a bottom plate 5 made of a steel plate. A substantially flat core material 7 positioned in the concave portion 3 of the bottom plate 5 is interposed between the plate 5 and the outer peripheral end of the top plate 6 is overlapped with the outer peripheral flange piece 4 of the bottom plate 5 and joined. Was. A notch 9 for leading out the wiring is provided at the outer peripheral end of the floor panel 8, and the overlapping joint between the outer peripheral end of the top plate 6 and the outer peripheral flange piece 4 of the bottom plate 5 is covered by the notch 9. A lid mounting protrusion 11 for mounting the lid 10, a lid 10 is arranged in the notch 9 for drawing out the wiring, and an edge of the lid 10 is mounted on the lid mounting protrusion 11 and attached. I have to. As the lid 10, two types, one having a drawer 21 for drawing out the cable 20 when drawing out the cable 20 such as a power line or an information line, and the other having no drawer, are prepared. The cable 20 can be selectively used when it is pulled out and when it is not pulled out. Alternatively, when the cable 20 is pulled out, a drawer for pulling out the cable 20 can be formed by knockout. When the cable 20 is pulled out without using the part without knocking out, the knockout part is knocked out to form a drawer part.

[0004] Conventionally, as shown in FIG. 9, the wall piece 2 on the back side of the notch 9 for drawing out the wiring reaches the outer peripheral piece 4 in the same manner as the wall piece 2 of the other part. It is vertical. In the related art, in order to easily fit the core material 7 into the recess 3 of the bottom plate 5 made of a steel plate during manufacturing, the wall piece 2 of the bottom plate 5 and the core material 7 are formed.
A constant gap S is required between the outer peripheral edge of the core member 7 and the outer peripheral edge of the core material 7. In order to take S, the core member 7 is positioned as far as possible in the direction of arrow B in FIG. Therefore, when the cable 20 such as the power line or the information line is drawn out as shown in FIG.
There is a problem in that the portion indicated by A in the figure becomes a hindrance and the amount of cable that can be wired by the cable 20 is small.

Further, since a constant gap S is formed between the wall piece 2 of the bottom plate 5 and the outer peripheral end of the core material 7, the core material 7 cannot be positioned in the recess 3 and the core material 7 cannot be positioned. When the material 7 is bonded with an adhesive, there is a problem that the core material 7 is shifted laterally. Further, conventionally, a gap S between the outer peripheral end of the core material 7 and the bottom plate 5 or the top plate 6 made of a steel plate is formed vertically above and below the notch 9 for leading out the wiring. When a load is applied to the lid 10, a load acts vertically only on the vertical wall piece 2 on the inner side of the notch 9 for drawing out the wiring, and there is a problem that the supporting force in this portion is weak. .

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and it is possible to increase the capacity of a cable such as a power line or an information line when the cable is drawn out. Further, it is an object of the present invention to provide a floor panel which can position a core material in a concave portion and, when a load is applied to a lid, can increase the support strength of a wall piece portion on the deep side of a cutout portion for drawing out a wiring. It is an issue.

[0007]

In order to solve the above-mentioned problems, a floor panel according to the present invention comprises a bottom plate portion 1 and a wall piece portion 2 extending from an outer peripheral end thereof.
And the portion surrounded by the wall piece 2 becomes the concave portion 3 and the outer peripheral flange piece 4 protrudes outward from the upper end of the wall piece 2 to form a bottom plate 5 made of a steel plate, and has a planar shape. A substantially flat core member 7 located in the recess 3 of the bottom plate 5 is interposed between the top plate 6 and the bottom plate 5 made of a steel plate. 4, a floor panel 8 formed by being connected to the floor panel 8 at a peripheral end of the floor panel 8;
Of the outer peripheral edge of the top plate 6 and the outer peripheral flange piece 4 of the bottom plate 5 are used as lid mounting projections 11 for mounting the lid 10, and the bottom plate is formed in the notch 9 for wiring lead-out. 5 is a vertical piece 1
2 and the upper part from the vertical piece 12 to the lid mounting projection 1
1 is characterized in that it is formed as an inclined piece 13 which is inclined so as to become more outward as it goes upward toward the outer peripheral flange piece 4 which constitutes 1. With this configuration, a necessary gap is secured between the inclined piece 13 above the wall piece 2 and the core material 7 in the cutout portion 9 for drawing out the wiring, and the core material 7 is recessed in the bottom plate 5. 3, the lower vertical piece 12 can be made as close as possible to the end of the core material 7, and as a result, the lower end of the vertical piece 12 can be positioned as much as possible in the wire drawing notch 9 Cables 2 such as power lines and information lines that can be located on the back side
When 0 is drawn, the capacity of the cable 20 that can be wired can be increased. In addition, since the lower vertical piece 12 can be configured as close as possible to the core material 7, the core material 7 can be positioned by the lower vertical piece 12, and the core material 7 when the core material 7 is bonded with an adhesive. It can prevent slippage.

Further, a part of the wall piece 2 of the bottom plate 5 on the back side of the cutout 9 for leading out the wiring is recessed toward the inside of the bottom plate 5, and the wall on the back side of the recess 14 is formed. The lower part of the piece part 2 is a vertical piece 12 and the upper part is a vertical piece 1
It is preferable that the inclined piece 13 is inclined from 2 toward the outer peripheral flange piece 4 constituting the lid mounting projection 11 so that the inclined piece 13 becomes more outward as it goes upward. With this configuration, a part of the wall piece 2 of the bottom plate 5 is recessed toward the inside of the bottom plate 5 to form the recessed portion 14. Vertical piece 12, inclined piece 13 formed partially
The recessed portion 14 having a rib structure having a substantially U-shaped horizontal cross section serves as a kind of pillar, and the load from the lid 10 to be placed on the mounting projection 11 has a rib structure. It can be supported by the component 14 and can be firmly supported.

It is preferable that the width between the wall pieces 2 on both sides of the concave portion 14 becomes wider as going downward. With such a configuration, the lower opening of the concave portion 14 is widened,
Cables 20 such as power lines and information lines passing through the recess 14
Can be pulled out smoothly.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on embodiments shown in the accompanying drawings. The bottom plate 5 is made of a steel plate, and the wall piece 2 rises from the outer peripheral end of the bottom plate 1, and a portion surrounded by the wall piece 2 is a concave portion 3. A bottom plate 5 is formed by projecting an outer peripheral flange piece 4 laterally outward from an upper end portion of the portion 2 and having a substantially square peripheral shape. The top plate 6 is made of a flat steel plate. The recess 3 of the bottom plate 5
A substantially flat core material 7 is fitted into the inside, and the outer peripheral end of the flat top plate 6 is overlapped with the outer peripheral flange piece 4 of the bottom plate 5, and the outer peripheral flange piece 4 of the bottom plate 5 is overlapped.
An outer peripheral end portion of the flat top plate 6 is connected by connecting means to form a floor panel 8 as shown in FIGS. In the embodiment shown in the accompanying drawings, a bent piece 15 is provided at the outer peripheral end of the top plate 6, and the bent piece 15 is bent and clamped on the lower surface side of the outer peripheral flange piece 4 (that is, hemmed) to be joined. Further, a part of the holding portion 23 is further caulked and fixed. In FIG. 2, reference numeral 24 denotes a caulking fixing portion. Of course, the connection between the outer peripheral flange piece 4 of the bottom plate 5 and the outer peripheral end of the top plate 6 is not limited to the above example, and various other connecting means can be adopted.

The core member 7 is, for example, a plate member such as a particle board having a substantially square shape in a plan view. The front and back surfaces of the core member 7 or one of the two surfaces is bonded to the top plate 6 to the bottom plate 5 with an adhesive. It is.
Of course, the plate material may be other than the particle board, for example, a lightweight concrete panel, or any other material.

As shown in FIGS. 1 to 3 and FIGS. 5 to 7, a notch 9 for drawing out a wiring is provided at the outer peripheral end of the floor panel 8 having the above-described structure. The overlapping connection between the outer peripheral edge of the top plate 6 and the outer peripheral flange piece 4 of the bottom plate 5 in the wiring leading cutout 9 forms a lid mounting projection 11 on which the lid 10 is mounted. The lid mounting projection 11 is provided so as to be stepped down at a position shifted downward from the upper surface of the top plate 6 by the thickness of the lid 10.

As shown in FIG. 1, a cover 10 is disposed in the cutout portion 9 for leading out the wiring, and the edge of the cover 10 is mounted on the protrusion 11 for mounting the cover. As the lid 10 used here, for example, there are two types, one having a drawer 21 for pulling out the cable 20 such as a power line and an information line, and the other having no drawer 21. Are prepared, and the cable 20 is used separately when it is pulled out and when it is not pulled out. Further, as another example, a knockout portion is provided on the lid 10 so that the drawer portion 21 can be formed by knockout, and when the cable 20 is not pulled out, the knockout portion is used without knockout and the cable 20 is pulled out. The knockout portion is knocked out to form a lead portion 21 so that the cable 20 is pulled out. As yet another example, a lid 10 having an outlet is used.

As described above, the lower part of the wall piece 2 of the bottom plate 5 is a vertical piece 12 on the back side of the notch 9 for drawing out the wiring for disposing the lid 10, and the upper part is the vertical piece 12. Inclined piece 1 that is inclined so that it becomes more outward as it goes upward toward outer peripheral flange piece 4 that constitutes lid mounting projection 11
It is 3. In the embodiment shown in FIGS. 5 to 7, a part of the wall piece 2 of the bottom plate 5 on the inner side of the notch 9 for drawing out the wiring is recessed toward the inside of the bottom plate 5. The lower part of the wall piece part 2 on the back side of the part 14 is a vertical piece 12, and the upper part is outwardly outward from the vertical piece 12 toward the outer peripheral flange piece 4 constituting the lid mounting projection 11. The inclined piece 13 is inclined.

Here, the lower part of the wall piece 2 of the bottom plate 5 is attached to the vertical piece 12
The upper portion is formed as an inclined piece 13 which is inclined outward from the vertical piece 12 toward the outer peripheral flange piece 4 constituting the lid mounting projection 11, so that the notch portion for drawing out the wiring is formed. At 9, the core material 7 can be easily fitted into the concave portion 3 of the bottom plate 5 by securing a necessary gap S between the inclined piece 13 above the wall piece 2 and the core material 7 (in this case, Furthermore, the core member 7 can be more smoothly fitted into the concave portion 3 by using the upper inclined piece 13 as a guide. The core material 7 can be fitted into the recess 3 more smoothly by using the guide 13 as a guide.) Therefore, the lower vertical piece 12 has a lower vertical piece 12 than the former, in which a gap S is formed between the lower vertical piece 12 and the core material 7 over the entire vertical length of the wall piece portion 2 as shown in FIG. As a result, the position of the lower end of the vertical piece 12 can be located as far as possible from the notch 9 for drawing out the wiring,
When the cable 20 such as a power line or an information line is to be drawn out, the wireable capacity of the cable 20 can be increased. In addition, the lower vertical piece 12 can be brought close to the end of the core material 7, and there is an effect of preventing the core material 7 from being shifted and positioning until the core material 7 is fitted and the adhesive is hardened. is there.

Here, without providing the vertical piece 12, the bottom plate 5
It is conceivable to incline the core member 7 into the concave portion 3 by inclining the entire vertical length of the wall piece portion 2 as shown by the imaginary line in FIG. 8, but in this case, as shown by the solid line. In comparison with the present invention in which the lower portion has the vertical piece 12 and the upper portion has the inclined piece 13, when the cables such as the power line and the information line are drawn out, the cable routable capacity is reduced, and Since the inclination length of the inclined piece that supports the load from the portion 11 becomes long, the supporting strength is weakened, and the positioning effect of the core material and the like are not preferable.

Further, as shown in FIGS. 5 to 7, a part of the wall piece 2 of the bottom plate 5 on the back side of the cutout 9 for drawing out the wiring is formed concave toward the inside of the bottom plate 5. The width between the wall pieces 2 on both sides of the formed concave portion 14 becomes wider as going downward. The floor panel 8 having the above-described configuration is configured such that the support portions 22 at the four corners are respectively mounted on the upper ends of support legs (not shown) erected on a floor substrate 26 such as a concrete slab. A large number of floor panels 8 are laid above the floor substrate 26 via a space as described above to form a double floor. And
In a space formed between the floor base material 26 and the floor panel 8, a cable 20 such as a power line or an information line is wired. When the cable 20 is pulled out, as shown in FIG.
1 is pulled out from the drawer 21 of the lid 10 mounted and supported. Here, FIG. 1 shows an example in which the outlet 19 is connected to the end of the cable 20 and the outlet 20 is pulled out on the floor. As another example, although not shown, the cable 20 may be connected to an outlet provided in the lid 10.

When the cable 20 is pulled out as described above, as shown in FIG. 1, the lower part of the wall piece 2 of the bottom plate 5 is a vertical piece 12 and the upper part is a vertical piece 12.
Since the inclined piece 13 is inclined so that it becomes more outward as it goes upward toward the outer peripheral flange piece 4 constituting the lid mounting projection 11, the position of the lower end of the vertical piece 12 is defined by the notch for drawing out the wiring. 9 can be positioned as far as possible from the back of the cable 9 when drawing out cables such as power lines and information lines.
Of the cable 20 can be increased.
Can be bent smoothly, and smooth wiring is possible, and it is possible to flexibly cope with an increase in the number of power lines and information lines, frequent layout changes in offices, and the like.

Moreover, both side walls of the recessed portion 14 formed by recessing a part of the wall piece 2 of the bottom plate 5 on the inner side of the cutout portion 9 for leading out the wiring toward the inside of the bottom plate 5. Since the width between the pieces 2 becomes wider as going downward, the opening at the lower part of the recess 14 becomes wider. As a result, the cable 20 such as a power line or an information line passes through the recess 14. Can be more smoothly pulled out.

When a load is applied to the lid 10,
Although the load from the lid 10 is applied to the wall piece 2 via the lid mounting projection 11, as described above, the wall piece 2 of the bottom plate 5 on the back side of the wiring leading cutout 9 is formed. A part is recessed toward the inside of the bottom plate 5, and the lower part of the wall piece part 2 on the back side of the recessed part 14 is a vertical piece 12, and the upper part is a lid mounting projection from the vertical piece 12. Since the inclined piece 13 is inclined so as to become more outward as it goes upward toward the outer peripheral flange piece 4 that constitutes 11, the vertical piece 12 and the inclined piece 13 formed in a part of the wall piece portion 2 are provided. The concave portion 14 has a rib structure having a substantially U-shaped horizontal cross section and serves as a kind of pillar, and the load from the lid 10 to be placed on the lid mounting projection 11 has a rib structure. 14 can provide strong support. In the case of the one shown in FIG. 2, the maximum supporting load is the conventional one shown in FIG. It is intended to improve about 1.5 times compared to.

[0021]

According to the invention of claim 1 of the present invention, as described above, a notch for leading out the wiring is provided at the outer peripheral end of the floor panel, and the outer periphery of the top plate in the notch for leading out the wiring is provided. The overlapping portion of the end portion and the outer peripheral flange piece of the bottom plate is a lid mounting projection for mounting the lid,
In the cutout portion for drawing out the wiring, the lower portion of the wall piece portion of the bottom plate is a vertical piece, and the upper portion is outwardly outward from the vertical piece toward the outer peripheral flange piece constituting the lid mounting projection. The core material can be easily inserted into the recess of the bottom plate by securing the necessary clearance between the upper inclined piece and the core material. It is possible to bring the piece closer to the end of the core material, and as a result, the position of the lower end of the vertical piece can be located as far as possible from the cut-out portion for drawing out the wiring, so that cables such as power lines and information lines can be drawn out In this case, the capacity that can be routed by the cable can be increased, the power lines and information lines can be increased, and the layout can be flexibly changed in frequent layout changes in the office.
In addition, since the lower vertical piece can be made as close as possible to the core material as described above, the core material can be positioned by the lower vertical piece, and the core material can be prevented from slipping when bonding the core material with an adhesive There is an effect that can be.

According to the second aspect of the present invention, in addition to the effect of the first aspect of the present invention, a part of the wall piece of the bottom plate on the back side of the cutout portion for drawing out the wiring is partially removed from the bottom plate. The lower part of the wall piece on the back side of the concave part is a vertical piece, and the upper part is directed upward from the vertical piece toward the outer peripheral flange piece constituting the lid mounting projection. As it is a sloped piece that slopes outward as you go to
The vertical section formed on a part of the wall section and the concave section with the inclined section have a rib structure having a substantially U-shaped horizontal cross section, and serve as a kind of column, and as a result, There is an effect that the load from the lid placed on the projecting portion can be reliably supported by the rib-shaped concave portion, and the rigid support can be provided.

According to the third aspect of the present invention, in addition to the effect of the second aspect of the present invention, the width between the wall pieces on both sides of the concave portion is made wider as going downward. Therefore, there is an effect that the lower opening of the recessed portion is widened and a cable such as a power line or an information line can be smoothly pulled out through the recessed portion.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a state in which a cover is provided in a cutout portion for wiring lead-out and a cable is drawn out in one embodiment of a floor panel of the present invention.

FIG. 2 is a bottom view of the floor panel of the present invention.

FIG. 3 is a perspective view of the same.

FIG. 4 is a sectional view of the same.

FIG. 5 is a partially broken perspective view of the same as seen from below.

6A and 6B show a cut-out portion for extracting a wiring from the above, wherein FIG. 6A is a plan view, FIG. 6B is a front view, FIG. 6C is a bottom view, and FIG.

FIG. 7 is a perspective view seen from below a notch portion for extracting a wiring as in the above.

FIG. 8 is an explanatory diagram showing a comparison between the present invention and a comparative example.

FIG. 9 is a cross-sectional view showing a state in which a lid is provided in a notch portion for drawing out a wire and a cable is drawn out in a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bottom plate part 2 Wall piece part 3 Concave part 4 Peripheral flange piece 5 Bottom plate 6 Top plate 7 Core material 8 Floor panel 9 Notch part for wiring lead-out 10 Cover 11 Projection part for lid placement 12 Vertical piece 13 Inclined piece 14 Concave part 20 Cable

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Tokuzo Kobayashi 635 Nika, Kawakami-cho, Kawakami-gun, Okayama Pref.

Claims (3)

[Claims] 1. A portion surrounded by the wall portion is raised from the outer peripheral end of the bottom plate portion to form a concave portion, and the outer peripheral flange is projected outward from an upper end portion of the wall portion to form a steel plate. A bottom plate is formed, and a substantially flat core material located in a concave portion of the bottom plate is interposed between a flat steel plate top plate and the bottom plate, and an outer peripheral end of the top plate is formed as a bottom plate. A floor panel formed by being superimposed and connected to an outer peripheral piece, wherein a cutout portion for leading out a wire is provided at an outer peripheral end of the floor panel, and an outer peripheral end of a top plate and an outer periphery of a bottom plate in the cutout portion for extracting a wiring are provided. The overlapping portion with the flange piece is used as a lid mounting projection for mounting the lid, and in the cut-out portion for drawing out the wiring, the lower part of the wall piece part of the bottom plate is a vertical piece and the upper part is a lid from the vertical piece. Mounting A floor panel comprising an inclined piece that is inclined so as to become more outward as it goes upward toward an outer peripheral flange piece that constitutes a projecting portion. 2. A part of a wall piece of a bottom plate at a depth side of a cutout portion for drawing out a wiring is recessed inward of the bottom plate, and a lower portion of the wall piece at a depth side of the recess is formed. 2. The vertical piece, and the upper part is formed as an inclined piece that is inclined so as to become more outward as it goes upward from the vertical piece toward the outer peripheral flange piece that constitutes the lid mounting projection. Floor panels. 3. The floor panel according to claim 2, wherein the width between the wall pieces on both sides of the concave portion becomes wider as going downward.