WO2015075843A1

WO2015075843A1 - Floor panel

Info

Publication number: WO2015075843A1
Application number: PCT/JP2013/081681
Authority: WO
Inventors: 小林　淳彦; 松崎　司; 裕一中保
Original assignee: 日立機材株式会社
Priority date: 2013-11-25
Filing date: 2013-11-25
Publication date: 2015-05-28
Also published as: JP5721201B1; JPWO2015075843A1; US20160265235A1

Abstract

Provided is a floor panel with a simple structure that can prevent cables for wiring or the like disposed in a space between the floor panel and a floor surface from becoming damaged due to contact with a distal end corner of the floor panel and that can prevent higher manufacturing costs. The present invention is a floor panel (40) which comprises a flat top plate (44) having a flat section and four sides on the periphery thereof and a plurality of side plates (46) that are formed by each of the four sides being bent and which constitutes a free access floor (42) supported by a supporting base (6), wherein a bent section (46c) is formed on the bottom end of the side plate (46) by bending the side plate (46).

Description

Floor panel

The present invention relates to a floor panel used for a free access floor.

The floor panel of the present invention is used for a free access floor. The floor panel of the free access floor is provided to form a second floor surface above the concrete floor surface constituting a part of the building structure, with a space from the floor surface via a support base. (For example, see Patent Document 1).

12 to 18 are views referred to for explaining the conventional floor panel 2. Here, FIG. 12 is a top view in the middle of the laying operation of the free access floor 4 using the conventional floor panel 2, and FIG. 13 is an enlarged part of the side surface of the free access floor 4 in FIG. It is a partial expanded side view.

As shown in FIG. 13, the conventional floor panel 2 is free-accessed together with a support base 6 erected via a connecting member 8 on a floor surface 3 formed of a concrete material constituting a part of a building structure. The floor 4 was to be configured.

That is, as shown in FIG. 12, the connecting member 8 includes nine support portions 12 that support nine support bases 6 arranged in three rows vertically and horizontally in the figure, and these nine support portions 12. In the drawing, the connecting portion 10 is configured to be connected to each other in the vertical direction or the horizontal direction.

And each of the connection member 8 was supported by the support stand 6 supported by the support part 12 arrange | positioned in the outer peripheral part, and the support part 12 of another connection member 8 adjacent to this support stand 6. They were arranged apart from each other on the floor surface 3 so that the distance between the center portions of the support base 6 and the length of one side of the floor panel 2 was substantially the same.

As shown in FIG. 13, the support base 6 is arranged on the floor surface 3 via the connecting member 8 by fitting the lower end portion thereof into a recess formed in the support portion 12 of the connecting member 8 from above. , Was placed upright.

Each of the support bases 6 is such that the distance between the center portions of the support bases 6 adjacent to the upper, lower, left and right adjacent to each other in FIG. 12 is substantially the same as the length of one side of the floor panel 2. They were placed apart from each other.

As shown in the top view of FIG. 14, the support base 6 is opened so as to have a depth from the upper end surface 6a to the back side of the paper surface in the figure, and is engaged with a side plate portion 16 of the floor panel 2 described later. Four possible grooves 6b were formed.

Of the four groove portions 6b formed on the support base 6, two groove portions 6b are arranged so as to extend substantially parallel to each other in the vertical direction in FIG. 14, and the other two groove portions 6b are shown in FIG. The two grooves 6b that extend in the left-right direction substantially parallel to each other and extend in the vertical direction are orthogonal to each other at the center of the upper end surface 6a of the support base 6.

And the four groove parts 6b of the support stand 6 were formed with ribs 6c protruding from the side surface on one side of the groove part 6b to the inside of the groove part 6b in the middle part of the length. The rib 6c has elasticity and flexibility, and generates a repulsive force (pressing force) to return to the original shape by pressing and bending the rib 6c.

The shape of the conventional floor panel 2 is formed by pressing a single metal plate-like member. As shown in FIG. 15, the floor panel 2 is formed in a plate shape having a substantially square upper surface 14a. The top plate portion 14 and the four side plate portions 16 (see FIG. 18) formed by being bent substantially vertically downward from the four sides of the top plate portion 14 are configured.

And the conventional floor panel 2 was extended along the one side of the top-plate part 14, and two long groove parts 14b dented in the back side of the thickness direction from the upper surface 14a were formed. These two long groove portions 14b are arranged substantially parallel to each other in the vertical direction in FIG.

Further, the conventional floor panel 2 has an opening shape that is cut out in a substantially rectangular shape on the inner side in the horizontal direction along with the lower side plate portion 16 on each of the four sides of the top plate portion 14. The opening 14c penetrating in the thickness direction was formed.

As shown in FIG. 16, the conventional floor panel 2 has a height direction (left and right in the figure) at the center part in the length direction (vertical direction in the figure) of the side plate part 16 and the step surface 16 a at both ends. The protruding portion 16b protruding so as to increase the dimensional difference in the direction) was formed.

As shown in FIG. 17, such a conventional floor panel 2 has an end portion in the length direction where the step surface 16a of the side plate portion 16 is formed inserted into the groove portion 6b of the support base 6 from above in the figure. Then, the back surface of the top surface 14 a of the top plate portion 14 is detachably supported at a predetermined height position on the floor surface 3 by contacting the upper end surface 6 a of the support base 6.

At this time, the end portions of the pair of side plate portions 16 adjacent to each other so that the lengths thereof are orthogonal to each other are a quarter region divided into 90 degrees of the upper end surface 6a of FIG. The pair of side plate portions 16 are easily fitted upward from the support base 6 into the groove portions 6b formed in the L-shapes that are provided in the adjacent region side and are orthogonal to each other. The rib 6c formed inside the groove 6b of the support base 6 was pressed from the side so as not to come out.

As shown in FIG. 12, the conventional floor panel 2 has upper and lower parts in the figure such that the corners of the top plate parts 14 abut each other on nine support bases 6 supported by one connecting member 8. A total of four sheets were placed side by side, two in each of the direction and the left-right direction.

Further, although not shown in the figure, a plurality of floors 2 are arranged such that another floor panel 2 is spaced from each other so as to fill a space between the plurality of floor panels 2 spaced apart from each other in FIG. It was placed on the upper end surface 6a of the support base 6 protruding outward in the horizontal direction from the panel 2.

For this reason, the conventional floor panel 2 is arranged side by side with no gap in the top and bottom and left and right in FIG. 12 when the laying operation of the free access floor 4 using the floor panel 2 is completed, with a space above the floor 3. A second floor surface was formed.

Since such a conventional floor panel 2 is formed by pressing a single metal plate-like member, its structure is simple, and an increase in manufacturing cost is prevented. I was able to.

Further, when the conventional floor panel 2 is used for the free access floor 4, cables such as wiring can be arranged in a space between the top plate portion 14 of the floor panel 2 and the floor surface 3. It was.

Japanese Patent No. 2778538

However, since the shape of the conventional floor panel 2 is formed by pressing a plate-shaped member cut into a predetermined shape as it is, as shown in FIG. Since the sharp corner 16c is formed at the lower left corner, the middle portion of the cable length such as wiring arranged in the space between the floor panel 2 and the floor surface 3 is formed on the side plate 16 of the floor panel 2. There is a problem in that the contact portion with the tip corner portion 16c of the cable may be damaged due to contact with the tip corner portion 16c and cause an accident.

Therefore, in view of the above problems, the present invention prevents a cable such as a wiring arranged in a space between the floor panel and the floor surface from being damaged by contact with the tip corner of the floor panel. It is an object of the present invention to provide a floor panel that can be manufactured and that has a simple structure and can prevent an increase in manufacturing cost.

In order to solve the above problems, the floor panel according to the present invention is:
A floor panel comprising a flat plate portion, a plate-like top plate portion having four sides on this peripheral portion, and a plurality of side plate portions formed by bending from each of the four sides, and constituting a free access floor supported by a support base Because
The side plate portion is bent, and a bent portion is formed at a lower end portion of the side plate portion.

The floor panel according to the present invention is
A leading end plate portion is formed on the side plate portion through the bent portion,
The tip portion of the tip plate portion opposite to the end portion that is continuous with the bent portion is disposed at a position closer to the center portion of the flat portion than the bent portion.

In addition, in order to solve the above problems, the floor panel according to the present invention is:
A floor panel comprising a flat plate portion, a plate-like top plate portion having four sides on this peripheral portion, and a plurality of side plate portions formed by bending from each of the four sides, and constituting a free access floor supported by a support base Because
A curved surface portion is formed by performing R processing on the lower end portion of the side plate portion.

In addition, in order to solve the above problems, the floor panel according to the present invention is:
A floor panel comprising a flat plate portion, a plate-like top plate portion having four sides on this peripheral portion, and a plurality of side plate portions formed by bending from each of the four sides, and constituting a free access floor supported by a support base Because
The lower end portion of the side plate portion is chamfered to form an inclined surface portion inclined with respect to the side surface and / or the lower end surface of the side plate portion.

According to such a floor panel of the present invention,
A floor panel comprising a flat plate portion, a plate-like top plate portion having four sides on this peripheral portion, and a plurality of side plate portions formed by bending from each of the four sides, and constituting a free access floor supported by a support base Because
The side plate portion is bent and a bent portion is formed at the lower end portion of the side plate portion.
The cable such as wiring arranged in the space between the floor panel and the floor can be prevented from being damaged due to contact with the corner of the floor panel, and the structure of the floor panel is simple. Further, it is possible to prevent an increase in the manufacturing cost.

Moreover, according to the floor panel of the present invention,
A floor panel comprising a flat plate portion, a plate-like top plate portion having four sides on this peripheral portion, and a plurality of side plate portions formed by bending from each of the four sides, and constituting a free access floor supported by a support base Because
By performing R processing on the lower end portion of the side plate portion to form a curved surface portion,
The cable such as wiring arranged in the space between the floor panel and the floor can be prevented from being damaged due to contact with the corner of the floor panel, and the structure of the floor panel is simple. Further, it is possible to prevent an increase in the manufacturing cost.

Moreover, according to the floor panel of the present invention,
A floor panel comprising a flat plate portion, a plate-like top plate portion having four sides on this peripheral portion, and a plurality of side plate portions formed by bending from each of the four sides, and constituting a free access floor supported by a support base Because
By chamfering the lower end portion of the side plate portion to form an inclined surface portion inclined with respect to the side surface and / or the lower end surface of the side plate portion,
The cable such as wiring arranged in the space between the floor panel and the floor can be prevented from being damaged due to contact with the corner of the floor panel, and the structure of the floor panel is simple. Further, it is possible to prevent an increase in the manufacturing cost.

It is a top view of the floor panel 40 which concerns on the 1st Embodiment of this invention. It is a side view of the floor panel 40 in FIG. FIG. 3 is a cross-sectional view of the floor panel 40 in FIG. It is a figure which shows the floor panel 50 which concerns on the 2nd Embodiment of this invention, Comprising: It is sectional drawing equivalent to the BB arrow sectional drawing of the floor panel 40 in FIG. It is a figure which shows the floor panel 60 which concerns on the 3rd Embodiment of this invention, Comprising: It is sectional drawing equivalent to the BB arrow sectional drawing of the floor panel 40 in FIG. It is a figure which shows the floor panel 70 which concerns on the 4th Embodiment of this invention, Comprising: It is sectional drawing equivalent to the BB arrow sectional drawing of the floor panel 40 in FIG. It is a figure which shows the floor panel 80 which concerns on the 5th Embodiment of this invention, Comprising: It is sectional drawing equivalent to the BB arrow sectional drawing of the floor panel 40 in FIG. It is a top view of the floor panel 90 which concerns on the 6th Embodiment of this invention. It is a side view of the floor panel 90 in FIG. It is a figure which shows the floor panel 100 which concerns on the 7th Embodiment of this invention, Comprising: It is sectional drawing equivalent to the BB arrow sectional drawing of the floor panel 40 in FIG. It is a figure which shows the floor panel 110 which concerns on the 8th Embodiment of this invention, Comprising: It is sectional drawing equivalent to the BB arrow sectional drawing of the floor panel 40 in FIG. It is a top view which shows the middle stage of the laying operation | work of the free access floor 4 or 42 comprised using the

floor panel

2 or 40. FIG. It is a partial expanded side view which expands and shows a part of side surface of the free access floor 4 or 42 in FIG. It is an enlarged top view of the support stand 6 in FIG. It is a top view of the conventional floor panel 2. FIG. It is a side view of the conventional floor panel 2 in FIG. It is a figure for demonstrating the operation | work which attaches the conventional floor panel 2 in FIG. 12 to the support stand 6, Comprising: It is an assembly side view of the conventional free access floor 4. FIG. FIG. 16 is a cross-sectional view taken along line AA of the conventional floor panel 2 in FIG.

Hereinafter, the form for implementing the floor panel which concerns on this invention is demonstrated concretely based on drawing.

FIGS. 1 to 3 and FIGS. 12 to 14 are views to be referred to for explaining the floor panel 40 according to the first embodiment of the present invention. Hereinafter, the same parts as those of the conventional floor panel 2 will be described with the same reference numerals, and the description of the same structure as the conventional one will be omitted except for a part.

The floor panel 40 according to the present embodiment includes a side plate portion 46 and a tip plate portion 48 as shown in FIG. 3 instead of the side plate portion 16 of the conventional floor panel 2 shown in FIG. The conventional floor panel 2 is significantly different.

That is, as shown in FIGS. 12 and 13, the floor panel 40 according to the present embodiment is provided on the floor surface 3 formed of a concrete material constituting a part of the building structure via the connecting member 8. The free access floor 42 is configured together with the support base 6 standing upright.

The floor panel 40 according to the present embodiment is formed by pressing one metal plate-like member, and as shown in FIG. 1, a plate-like shape having a substantially square upper surface 44a. A top plate portion 44 (planar portion) formed on the four side plates, four side plate portions 46 (see FIG. 3) formed by bending substantially vertically downward from four sides of the top plate portion 44, and four side plate portions 46. Are provided with four tip plate portions 48 that are continuous via a bent portion 46c (see FIG. 3).

The floor panel 40 extends along one side of the top plate portion 44, and has two long groove portions 44b that are recessed from the upper surface 44a to the back side in the thickness direction. These two long groove portions 44b are arranged substantially parallel to each other in the vertical direction in FIG.

In addition, the floor panel 40 has a substantially rectangular shape on the inner side in the horizontal direction along with the side plate portion 46 below, on each of the four sides of the top plate portion 44, similarly to the opening portion 14c of the conventional floor panel 2 shown in FIG. An opening 44 c having an opening shape that is notched and penetrating in the thickness direction of the top plate portion 44 is formed.

As shown in FIG. 2, the floor panel 40 has stepped surfaces at both ends at the center in the length direction (vertical direction in the figure) of the side plate portion 46 that is bent at a right angle from the top plate portion 44 and is continuous. A projecting portion 46b is formed so that the dimensional difference in the height direction (left and right direction in the figure) is larger than 46a.

In FIG. 3, for convenience of explanation, the protruding portion 46 b of the side plate portion 46 of the floor panel 40 and the plate portion located above the step surface 46 a of the side plate portion 46 in the drawing are drawn so as to be divided into portions by broken lines. However, as shown in FIG. 2, there is actually no such boundary as separating them, and they are formed continuously as a whole.

As shown in FIG. 3, the protruding portion 46b of the side plate portion 46 is bent at a bent portion 46c at the lower end portion thereof, and is formed with a distal end plate portion 48 and a bent portion formed closer to the distal end portion than the bent portion 46c. It continues through 46c. The bent portion 46c of the side plate portion 46 has a substantially U-shaped cross section.

The front end plate portion 48 of the floor panel 40 has a front end corner portion 48a opposite to the end portion continuous with the bent portion 46c by bending the protruding portion 46b of the side plate portion 46 at the bent portion 46c. The leading end portion is disposed away from the upper surface 44a of the top plate portion 44 by a distance shorter than the distance (shortest distance) from the upper surface 44a of the top plate portion 44 to the lowermost end of the bent portion 46c.

Further, the front end plate portion 48 of the floor panel 40 is disposed on the right side in FIG. In other words, the front end plate portion 48 is disposed on the inner side of the side plate portion 46 (near the center portion of the top plate portion 44).

Therefore, in the floor panel 40, the tip corner portion 48a of the tip plate portion 48, which is a portion corresponding to the tip corner portion 16c of the side plate portion 16 of the conventional floor panel 2, has a top plate portion 44 from the lowermost end of the bent portion 46c. Are arranged near the upper surface 44a and are arranged on the inner side of the side plate portion 46 which is bent at a right angle from the top plate portion 44 and is continuous.

Further, as shown in FIG. 3, the floor panel 40 has a substantially cross-sectional shape at a portion corresponding to the lower end portion of the side plate portion 16 where the tip corner portion 16c of the conventional floor panel 2 in FIG. 18 is formed. A bent portion 46c is formed which is U-shaped and has an arcuate curved outer shape.

Further, in the floor panel 40, as in the conventional floor panel 2 shown in FIG. 17, the end portion in the length direction of the side plate portion 46 formed with the step surface 46a is fitted into the groove portion 6b of the support base 6 from above. Then, when the back surface of the top plate portion 44 contacts the upper end surface 6 a of the support base 6, the top plate portion 44 is detachably supported at a predetermined height position on the floor surface 3.

At this time, the end portions of the pair of side plate portions 46 adjacent to each other so that the lengths thereof are orthogonal to each other are a quarter region divided into 90 degrees of the upper end surface 6a of FIG. The pair of side plate portions 46 are easily fitted upward from the support base 6 into the groove portions 6b formed in the L-shapes that are provided in the adjacent region side and are orthogonal to each other. It is pressed from the side by a rib 6c formed inside the groove 6b of the support base 6 so as not to come out.

As shown in FIG. 12, the floor panel 40 abuts the corners of the top plate portions 44 on the nine support bases 6 supported by one connecting member 8 as in the conventional floor panel 2. In this way, a total of four are placed side by side in the vertical and horizontal directions in the figure.

In addition, although not shown in the figure, a plurality of floors 40 are arranged such that another floor panel 40 is spaced from each other so as to fill a space between the plurality of floor panels 40 spaced from each other in FIG. It is placed on the upper end surface 6 a of the support base 6 that protrudes outward in the horizontal direction from the panel 40.

For this reason, when the laying operation of the free access floor 42 using the floor panel 40 is completed, the floor panel 40 is arranged side by side without any gaps in the vertical and horizontal directions in FIG. It is designed to form a floor surface.

In the floor panel 40 according to the present embodiment, a bent portion 46c is formed at a portion corresponding to the lower end portion of the side plate portion 16 where the tip corner portion 16c of the conventional floor panel 2 in FIG. Since the front end corner portion 48a of the plate portion 48 is disposed closer to the upper surface 44a of the top plate portion 44 than the lowermost end of the bent portion 46c, and is disposed inside the side plate portion 46, the floor panel 40 and the floor surface It is possible to prevent the middle part of the length of the cable, such as the wiring, disposed in the space between the front end 3 and the front end corner 48 a of the front end plate 48.

For this reason, in the floor panel 40 according to the present embodiment, a cable such as a wiring arranged in a space between the floor surface 3 is damaged by contact with the tip corner portion 48a of the tip plate portion 48. Accidents can be prevented.

In addition, the floor panel 40 according to the present embodiment is formed with the bent portion 46c of the side plate portion 46, so that the section modulus and the moment of inertia of the section are increased, so that the deflection of the floor panel 40 can be suppressed. it can.

In addition, the floor panel 40 according to the present embodiment has its shape including the bent portion 46c of the side plate portion 46 formed by pressing the plate-shaped member cut into a predetermined shape as it is. The structure is simple and the manufacturing cost can be prevented from increasing.

As described above, according to the floor panel 40 according to the present embodiment, the cable such as the wiring disposed in the space between the floor surface 3 is damaged by the contact with the tip corner portion 48a. Can be prevented, the structure is simple, and the manufacturing cost can be prevented from being increased.

Moreover, according to the floor panel 40 according to the present embodiment, the deflection of the floor panel 40 can be suppressed.

FIG. 4 is a diagram referred to for explaining the floor panel 50 according to the second embodiment of the present invention.

The floor panel 50 according to the present embodiment has a bent portion of the side plate portion 52 as shown in FIG. 4 instead of the bent portion 46c and the tip plate portion 48 of the side plate portion 46 in the first embodiment. In the point provided with 52c and the front-end | tip board part 54, it differs from the floor panel 40 which concerns on the said 1st Embodiment.

That is, as shown in FIG. 4, the side plate portion 52 of the floor panel 50 is bent so that the front end plate portion 54 is inside the side plate portion 52 at the bent portion 52c at the lower end portion of the protruding portion 52b. The cross-sectional shape is different from the side plate portion 46 according to the first embodiment in that the cross-sectional shape is formed in a substantially square shape.

The stepped surface 52a of the side plate portion 52 of the floor panel 50, the protruding portion 52b, and the tip corner portion 54a of the tip plate portion 54 are different from each other in the positional relationship depending on the bent portion 52c. This is the same as the step surface 46 a of the side plate portion 46, the protruding portion 46 b and the tip corner portion 48 a of the tip plate portion 48 according to the embodiment.

In FIG. 4, for convenience of explanation, the protruding portion 52 b of the side plate portion 52 of the floor panel 50 and the plate portion located above the step surface 52 a of the side plate portion 52 in the drawing are drawn so as to be divided into portions by broken lines. However, like the side plate portion 46 in the first embodiment, there is actually no boundary that separates them, and they are formed continuously as a whole. This also applies to

side plate portions

62, 102, and 112 in FIGS. 5, 10, and 11, which will be described later.

As shown in FIG. 4, the side plate portion 52 of the floor panel 50 has an acute angle between the side plate portion 52 and the tip plate portion 54 by forming a bent portion 52 c at the lower end portion of the protruding portion 52 b. It has become.

For this reason, the front-end | tip board part 54 of the floor panel 50 has a front-end | tip part which has the front-end | tip corner | angular part 54a on the opposite side to the edge part which follows the bending part 52c, and is a bending part from the upper surface 44a of the top-plate part 44. The top plate 44 is disposed away from the top surface 44a by a distance shorter than the distance to the lowest end of 52c.

Further, the floor panel 50 is a portion corresponding to the tip corner portion 16c of the side plate portion 16 of the conventional floor panel 2, and the tip corner portion 54a of the tip plate portion 54 is a top plate from the lowermost end of the bent portion 52c. It is arranged near the upper surface 44 a of the part 44 and is arranged inside the side plate part 52.

Further, the floor panel 50 is formed in a substantially letter-shaped cross section at a portion corresponding to the lower end portion of the side plate portion 16 where the tip corner portion 16c of the conventional floor panel 2 in FIG. 18 is formed. As shown, a bent portion 52c whose outer contour is arcuately curved is formed.

For this reason, in the floor panel 50 according to the present embodiment, cables such as wirings arranged in the space between the floor surface 3 do not come into contact with the tip corner portion 54a of the tip plate portion 54. It is possible to prevent the cable from being damaged and causing an accident.

Further, the floor panel 50 according to the present embodiment is formed by pressing the plate-like member cut into a predetermined shape as it is, so that the shape including the bent portion 52c of the side plate portion 52 is formed. The structure is simple and the manufacturing cost can be prevented from increasing.

Therefore, according to the floor panel 50 according to the present embodiment, like the floor panel 40 according to the first embodiment, a cable such as a wiring arranged in the space between the floor surface 3 It is possible to prevent damage due to contact with the tip corner portion 54a of the plate portion 54, the structure thereof is simple, and an increase in the manufacturing cost can be prevented.

Further, according to the floor panel 50 according to the present embodiment, the bent portion 52c of the side plate portion 52 is formed, so that the section modulus and the moment of inertia of the section are increased, so that the deflection of the floor panel 50 is suppressed. be able to.

FIG. 5 is a view referred to for explaining a floor panel 60 according to a third embodiment of the present invention.

The floor panel 60 according to the present embodiment has a bent portion of the side plate portion 62 as shown in FIG. 5 instead of the bent portion 52c and the tip plate portion 54 of the side plate portion 52 in the second embodiment. The floor panel 50 according to the second embodiment is different from the floor panel 50 according to the second embodiment in that 62c and the tip plate portion 64 are provided.

That is, as shown in FIG. 5, the side plate portion 62 of the floor panel 60 is bent at the bent portion 62c at the lower end portion of the projecting portion 62b so that the front end plate portion 64 is inside the side plate portion 62. The cross-sectional shape is different from the side plate portion 52 according to the second embodiment in that the cross-sectional shape is substantially L-shaped.

Further, the step surface 62a of the side plate portion 62 of the floor panel 60, the projecting portion 62b, and the tip corner portion 64a of the tip plate portion 64 are different from each other in the positional relationship between the bent portions 62c. This is the same as the stepped surface 52a of the side plate portion 52, the protruding portion 52b, and the tip corner portion 54a of the tip plate portion 54 according to the embodiment.

As shown in FIG. 5, the side plate portion 62 of the floor panel 60 has a bent portion 62c formed at the lower end portion of the projecting portion 62b, so that the angle between the side plate portion 62 and the front end plate portion 64 is substantially equal. It is a right angle.

For this reason, the front end plate portion 64 of the floor panel 60 has a front end portion having a front end corner portion 64a opposite to the end portion continuous with the bent portion 62c. The distance from the upper surface 44a of the top plate portion 44 is substantially the same as or shorter than the distance to the lowest end of 62c.

The floor panel 60 is a portion corresponding to the tip corner 16c of the side plate 16 of the conventional floor panel 2, and the tip corner 64a of the tip plate 64 is bent from the upper surface 44a of the top plate 44. The distance from the upper surface 44 a of the top plate portion 44 is approximately the same distance as the distance to the lowermost end of the portion 62 c, and is disposed inside the side plate portion 62.

Further, the floor panel 60 has a substantially L-shaped cross-section at a portion corresponding to the lower end portion of the side plate portion 16 where the tip corner portion 16c of the conventional floor panel 2 in FIG. 18 is formed. As shown, an arcuate curved portion 62c having an outer contour of 90 degrees is formed.

For this reason, in the floor panel 60 according to the present embodiment, the cable such as the wiring arranged in the space between the floor surface 3 is damaged by the contact with the tip corner portion 64a of the tip plate portion 64. Accidents can be prevented.

Further, the floor panel 60 according to the present embodiment is formed by pressing the plate-like member cut into a predetermined shape as it is, so that the shape including the bent portion 62c of the side plate portion 62 is formed. The structure is simple and the manufacturing cost can be prevented from increasing.

Therefore, according to the floor panel 60 according to the present embodiment, like the floor panel 50 according to the second embodiment, the cable such as the wiring arranged in the space between the floor surface 3 It is possible to prevent damage due to contact with the tip corner portion 64a of the plate portion 64, the structure is simple, and the manufacturing cost can be prevented from being increased.

In addition, according to the floor panel 60 according to the present embodiment, the bent portion 62c of the side plate portion 62 is formed, so that the section modulus and the moment of inertia of the section are increased, so that the deflection of the floor panel 60 is suppressed. be able to.

FIG. 6 is a view referred to for explaining a floor panel 70 according to the fourth embodiment of the present invention.

The floor panel 70 according to the present embodiment has a side plate portion as shown in FIG. 6 in place of the bent portion 62c of the side plate portion 62 and the tip corner portion 64a of the tip plate portion 64 in the third embodiment. The floor panel 60 according to the third embodiment is different from the floor panel 60 according to the third embodiment in that a curved surface portion 72c is provided at the distal end portion of 72.

That is, as shown in FIG. 6, the side plate portion 72 of the floor panel 70 is formed to extend straight downward from the step surface 72 a in the same figure without the protruding portion 72 b being bent at the lower end portion thereof, The front end portion is different from the side plate portion 62 according to the third embodiment in that the tip portion is rounded by cutting or the like to form a curved surface portion 72c having an arcuate curved shape. .

In the floor panel 70 according to the present embodiment, since the outer contour of the curved surface portion 72c at the tip of the side plate portion 72 is an arc curved surface, a cable such as a wiring arranged in the space between the floor surface 3 is brought into contact with the floor panel 70. It is possible to prevent damage.

The floor panel 70 according to the present embodiment is formed by pressing the plate-shaped member cut into a predetermined shape as it is and forming the curved surface portion 72c of the side plate portion 72 by cutting or the like. Therefore, the structure is simple and the manufacturing cost can be prevented from being increased.

Therefore, according to the floor panel 70 according to the present embodiment, like the floor panel 60 according to the third embodiment, the cables such as wirings arranged in the space between the floor surface 3 and the side plate It is possible to prevent the portion 72 from being damaged due to contact with the curved surface portion 72c, and the structure thereof is simple, and the manufacturing cost can be prevented from being increased.

FIG. 7 is a diagram referred to for explaining a floor panel 80 according to a fifth embodiment of the present invention.

The floor panel 80 according to the present embodiment has an inclined surface portion 82c at the distal end portion of the side plate portion 82 as shown in FIG. 7 instead of the curved surface portion 72c at the distal end portion of the side plate portion 72 in the fourth embodiment. Is different from the floor panel 70 according to the fourth embodiment.

That is, as shown in FIG. 7, the side plate portion 82 of the floor panel 80 extends straight downward from the step surface 82a in the drawing without the protruding portion 82b being bent in the middle of the height, The distal end portion is chamfered by cutting or the like, and is bent at a right angle from the top plate portion 44 of the side plate portion 82 to form an inclined surface portion 82c that is inclined with respect to the plane of the base portion plate portion. Is different from the side plate portion 72 according to the fourth embodiment.

In the floor panel 80 according to the present embodiment, since the outer contour of the inclined surface portion 82c at the tip of the side plate portion 82 is inclined, a cable such as a wiring arranged in the space between the floor surface 3 is brought into contact with the floor panel 80. It is possible to prevent damage.

The floor panel 80 according to this embodiment is formed by pressing the plate-shaped member cut into a predetermined shape as it is and by forming the inclined surface portion 82c of the side plate portion 82 by cutting or the like. Therefore, the structure is simple and the manufacturing cost can be prevented from being increased.

Therefore, according to the floor panel 80 according to the present embodiment, like the floor panel 70 according to the fourth embodiment, cables such as wirings arranged in the space between the floor surface 3 are While being able to prevent damage due to contact with the inclined surface portion 82c of the side plate portion 82, the structure thereof is simple, and an increase in the manufacturing cost can be prevented.

8 and 9 are diagrams referred to for describing a floor panel 90 according to a sixth embodiment of the present invention.

The floor panel 90 according to the present embodiment is formed by pressing one metal plate-like member, and as shown in FIG. 8, a plate-like shape having a substantially rectangular upper surface 92a. The top plate portion 92 formed on the top plate 92, the six side plate portions 94 (see FIG. 9) formed by being bent substantially vertically downward from the four sides of the top plate portion 92, and the six side plate portions 94 are folded. It comprises six tip plate portions 96 that are continuous via a curved portion 94c (see FIG. 9).

The top panel 92 of the floor panel 90 according to the present embodiment includes two sides having the same length as one side of the upper surface 44a of the top panel 44 of the floor panel 40 according to the first embodiment, and the top panel. Two sides having a length twice as long as one side of the upper surface 44 a of the portion 44 are provided.

As shown in FIGS. 8 and 9, the long groove portion 92b and the opening 92c of the top plate portion 92, the step surface 94a of the side plate portion 94, the protruding portion 94b, and the bent portion in the floor panel 90 according to the present embodiment. 94c and the front end corner portion 96a of the front end plate portion 96 are the long groove portion 44b and the opening portion 44c of the top plate portion 44 and the side plate portion 46 in the floor panel 40 according to the first embodiment shown in FIGS. This is the same as the step surface 46 a, the protruding portion 46 b and the bent portion 46 c, and the tip corner portion 48 a of the tip plate portion 48.

In addition, the floor panel 90 according to the present embodiment includes two floor panels 40 according to the first embodiment, which are arranged in series instead of being placed on the six support bases 6 in series. A plurality of floor panels 90 are placed on six support bases 6.

For this reason, in the floor panel 90 according to the present embodiment, the cable such as the wiring arranged in the space between the floor surface 3 is damaged by contact with the tip corner portion 96a of the tip plate portion 96. Accidents can be prevented.

Further, the floor panel 90 according to the present embodiment is formed by pressing the plate-shaped member cut into a predetermined shape as it is, so that the shape including the bent portion 94c of the side plate portion 94 is formed. The structure is simple and the manufacturing cost can be prevented from increasing.

Therefore, according to the floor panel 90 according to the present embodiment, as in the floor panel 40 according to the first embodiment, a cable such as a wiring arranged in the space between the floor surface 3 It is possible to prevent damage due to contact with the tip corner portion 96a of the plate portion 96, the structure thereof is simple, and the increase in the manufacturing cost can be prevented.

In addition, according to the floor panel 90 according to the present embodiment, since the bent portion 94c of the side plate portion 94 is formed, the section modulus and the moment of inertia of the section are increased, so that the deflection of the floor panel 90 is suppressed. be able to.

FIG. 10 is a diagram referred to for explaining the floor panel 100 according to the seventh embodiment of the present invention.

The floor panel 100 according to the present embodiment has a bent portion of the side plate portion 102 as shown in FIG. 10 instead of the bent portion 46c and the front end plate portion 48 of the side plate portion 46 in the first embodiment. The floor panel 40 according to the first embodiment is different from the floor panel 40 according to the first embodiment in that it includes the 102c and the tip plate portion 104.

Further, the step surface 102a of the side plate portion 102 of the floor panel 100, the protruding portion 102b, and the tip corner portion 104a of the tip plate portion 104 are different from each other in the positional relationship depending on the bent portion 102c. This is the same as the step surface 46 a of the side plate portion 46, the protruding portion 46 b and the tip corner portion 48 a of the tip plate portion 48 according to the embodiment.

As shown in FIG. 10, the side plate portion 102 of the floor panel 100 is bent so that the tip plate portion 104 is outside the side plate portion 102 at the protruding portion 102 b, and the cross-sectional shape of the bent portion 102 c is substantially U-shaped. In the point formed in the shape, it differs from the side-plate part 46 which concerns on the said 1st Embodiment.

The front end plate portion 104 of the floor panel 100 has a front end corner portion 104a on the opposite side of the end portion continuous with the bent portion 102c by bending the protruding portion 102b of the side plate portion 102 at the bent portion 102c. The front end portion is disposed away from the top surface 44a of the top plate portion 44 by a distance shorter than the distance (shortest distance) from the top surface 44a of the top plate portion 44 to the lowest end of the bent portion 102c.

Further, the front end plate portion 104 of the floor panel 100 is arranged on the left side (outside) in FIG.

Accordingly, in the floor panel 100, the tip corner portion 104a of the tip plate portion 104, which is a portion corresponding to the tip corner portion 16c of the side plate portion 16 of the conventional floor panel 2, has a top plate portion 44 from the lowermost end of the bent portion 102c. Are arranged near the upper surface 44a of the upper plate 44 and are disposed outside the side plate portion 102 which is bent at a right angle from the top plate portion 44 and is continuous.

Further, as shown in FIG. 10, the floor panel 40 has a substantially cross-sectional shape at a portion corresponding to the lower end portion of the side plate portion 16 where the tip corner portion 16c of the conventional floor panel 2 in FIG. 18 is formed. A bent portion 102c having a U-shape and an outer contour whose shape is an arcuate curved surface is formed.

For this reason, in the floor panel 100 according to the present embodiment, the cable such as the wiring arranged in the space between the floor surface 3 does not come into contact with the tip corner portion 104a of the tip plate portion 104. It is possible to prevent the cable from being damaged and causing an accident.

Further, the floor panel 100 according to the present embodiment is formed by pressing the plate-shaped member cut into a predetermined shape as it is, so that the shape including the bent portion 102c of the side plate portion 102 is formed. The structure is simple and the manufacturing cost can be prevented from increasing.

Therefore, according to the floor panel 100 according to the present embodiment, as in the floor panel 40 according to the first embodiment, a cable such as a wiring arranged in the space between the floor surface 3 It is possible to prevent damage due to contact with the tip corner portion 104a of the plate portion 104, the structure is simple, and the manufacturing cost can be prevented from being increased.

Further, according to the floor panel 100 according to the present embodiment, since the bent portion 102c of the side plate portion 102 is formed, the section modulus and the moment of inertia of the section are increased, so that the deflection of the floor panel 100 is suppressed. be able to.

FIG. 11 is a diagram referred to for describing a floor panel 110 according to an eighth embodiment of the present invention.

The floor panel 110 according to the present embodiment includes a side plate portion 112 and a front end plate portion 114 as shown in FIG. 11 instead of the side plate portion 102 and the front end plate portion 104 in the seventh embodiment. This is different from the floor panel 100 according to the seventh embodiment.

In addition, the stepped surface 112a of the side plate portion 112 of the floor panel 110, the protruding portion 112b, the bent portion 112c, and the tip corner portion 114a of the tip plate portion 114 are different from each other in that the positional relationship is slightly different depending on the shape of the side plate portion 112. These are the same as the stepped surface 102 a, the projecting portion 102 b, the bent portion 102 c, and the tip corner portion 104 a of the tip plate portion 104 of the side plate portion 102 according to the seventh embodiment.

That is, the side plate portion 112 of the floor panel 110 is bent from the side portion of the top plate portion 44 as shown in FIG. 11, and the lower end portion is on the right side in the drawing (the center portion of the top plate portion 44). It differs from the side plate portion 102 according to the seventh embodiment in that it is curved so as to be closer to the side.

Further, the front end plate portion 114 of the floor panel 110 has a front end corner portion on the side opposite to the end portion that is continuous with the bent portion 112c when the protruding portion 112b of the side plate portion 112 is bent at the bent portion 112c. The tip portion having 114a is arranged away from the upper surface 44a of the top plate portion 44 by a distance shorter than the distance (shortest distance) from the upper surface 44a of the top plate portion 44 to the lowest end of the bent portion 112c.

Further, the front end plate portion 114 of the floor panel 110 is disposed on the left side (outside) in FIG. 11 with respect to the side plate portion 112, and the right side in the drawing (the center portion of the top plate portion 44). It is arranged on the side.

Therefore, in the floor panel 110, the tip corner portion 114a of the tip plate portion 114, which is a portion corresponding to the tip corner portion 16c of the side plate portion 16 of the conventional floor panel 2, has a top plate portion 44 from the lowermost end of the bent portion 112c. Are disposed near the upper surface 44a of the first plate 44, and are disposed outside the side plate portion 112 which is bent from the top plate portion 44 and is continuous.

Further, as shown in FIG. 11, the floor panel 110 has a substantially cross-sectional shape at a portion corresponding to the lower end portion of the side plate portion 16 where the tip corner portion 16c of the conventional floor panel 2 in FIG. 18 is formed. A bent portion 112c having a U-shape and an outer contour whose shape is a circular arc is formed.

For this reason, in the floor panel 110 according to the present embodiment, the cable such as the wiring arranged in the space between the floor surface 3 does not come into contact with the tip corner portion 114a of the tip plate portion 114. It is possible to prevent the cable from being damaged and causing an accident.

In addition, the floor panel 110 according to the present embodiment has its shape including the bent portion 112c of the side plate portion 112 formed by pressing the plate-shaped member cut into a predetermined shape as it is, The structure is simple and the manufacturing cost can be prevented from increasing.

Therefore, according to the floor panel 110 according to the present embodiment, like the floor panel 100 according to the seventh embodiment, the cable such as the wiring arranged in the space between the floor surface 3 It is possible to prevent damage due to contact with the tip corner portion 114a of the plate portion 114, the structure thereof is simple, and an increase in the manufacturing cost can be prevented.

Further, according to the floor panel 110 according to the present embodiment, since the bent portion 112c of the side plate portion 112 is formed, the section modulus and the moment of inertia of the section are increased, so that the deflection of the floor panel 110 is suppressed. be able to.

The present invention is not limited to the above embodiment, and various types of floor panels and free access floors using the floor panels can be used as long as the object of the present invention can be achieved. It can be changed.

For example, the floor panel 40 according to the first embodiment is bent at the protruding portion 46b of the side plate portion 46, and the bent portion 46c is formed at the lower end portion of the protruding portion 46b. The bent portion may be formed at the lower end portion of the side plate portion 46 by being bent over the entire length of the side plate portion 46 at a height position above the step surface 46a. About this point and the following points, it is the same also about the floor panel which concerns on other embodiment.

In addition, the floor panel 40 according to the first embodiment has the cross-sectional shape of the central portion of each of the side plate portion 46 and the tip plate portion 48 formed in a single straight line. It is not limited to, but it is bent in the middle of its length, and the cross-sectional shape of the center of its length is formed into a lightning bolt shape in which a plurality of straight lines are continuous at the ends of each other. The cross-sectional shape may be a curved shape having one or a plurality of arcs.

Further, in the floor panel 40 according to the first embodiment, the distance between the front end portion having the front end corner portion 48a of the front end plate portion 48 and the lower end of the bent portion 46c from the upper surface 44a of the top plate portion 44 ( The distance from the upper surface 44a of the top plate portion 44 is shorter than the shortest distance), but is not limited to this shape, and is longer than the distance from the upper surface 44a of the top plate portion 44 to the lowermost end of the bent portion 46c. You may arrange | position away from the upper surface 44a of the top-plate part 44 only the distance.

In addition, the floor panel 40 according to the first embodiment constitutes the free access floor 42 together with the support base 6 erected on the floor surface 3 via the connecting member 8. The support base 6 may be directly erected on the floor surface 3 in a configuration not having 8.

Further, in the floor panel 40 according to the first embodiment, the end portion in the length direction of the side plate portion 46 in which the step surface 46a is formed is fitted into the groove portion 6b of the support base 6 from above, so that Although the back surface of the plate portion 44 is detachably supported at a predetermined height position on the floor surface 3 by contacting the upper end surface 6a of the support base 6, the present invention is not limited to this configuration. It only needs to be supported.

Further, in the support base 6 in the first embodiment, the rib 6c is formed in the middle of the length of the groove 6b, but the end of the side plate portion 46 of the floor panel 40 is formed in the groove 6b of the support base 6. As long as it can be inserted, it may be configured without the rib 6c.

2 Floor panel 3 Floor surface 4 Free access floor 6 Support base 6a Upper end surface 6b Groove portion 6c Rib 8 Connection member 10 Connection portion 12 Support portion 14 Top plate portion 14a Upper surface 14b Long groove portion 14c Opening portion 16 Side plate portion 16a Stepped surface 16b Projection portion 16c front end corner 40 floor panel 42 free access floor 44 top plate 44a upper surface 44b long groove 44c opening 46 side plate 46a stepped surface 46b protrusion 46c bent part 48 front end plate 48a front end corner 50 floor panel 52 side plate 52a Stepped surface 52b Protruding portion 52c Bent portion 54 Tip plate portion 54a Tip corner portion 60 Floor panel 62 Side plate portion 62a Stepped surface 62b Protruding portion 62c Bending portion 64 Tip plate portion 64a Tip corner portion 70 Floor panel 72 Side plate portion 72a Step difference Surface 72b Projection 72c Curved surface 80 Flow Panel 82 Side plate portion 82a Stepped surface 82b Protruding portion 82c Tapered surface portion 90 Floor panel 92 Top plate portion 92a Upper surface 92b Long groove portion 92c Opening portion 94 Side plate portion 94a Stepped surface 94b Protruding portion 94c Bending portion 96 Tip plate portion 96a Tip corner portion 100 Floor panel 102 Side plate portion 102a Stepped surface 102b Protruding portion 102c Bent portion 104 Tip plate portion 104a Tip corner portion 110 Floor panel 112 Side plate portion 112a Stepped surface 112b Protruding portion 112c Bending portion 114 Tip plate portion 114a Tip corner portion

Claims

A floor panel comprising a flat plate portion, a plate-like top plate portion having four sides on this peripheral portion, and a plurality of side plate portions formed by bending from each of the four sides, and constituting a free access floor supported by a support base Because
A floor panel, wherein the side plate portion is bent to form a bent portion at a lower end portion of the side plate portion.
A leading end plate portion is formed on the side plate portion through the bent portion,
The front end portion of the front end plate portion opposite to the end portion that is continuous with the bent portion is disposed at a position closer to the center portion of the flat portion than the bent portion. The listed floor panel.
A floor panel comprising a flat plate portion, a plate-like top plate portion having four sides on this peripheral portion, and a plurality of side plate portions formed by bending from each of the four sides, and constituting a free access floor supported by a support base Because
A floor panel, wherein a curved surface portion is formed by applying R processing to a lower end portion of the side plate portion.
A floor panel comprising a flat plate portion, a plate-like top plate portion having four sides on this peripheral portion, and a plurality of side plate portions formed by bending from each of the four sides, and constituting a free access floor supported by a support base Because
A floor panel, wherein the lower end portion of the side plate portion is chamfered to form an inclined surface portion inclined with respect to the side surface and / or the lower end surface of the side plate portion.