JP2008240490A - Panel fixing metal fitting and panel fixing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a floor panel fixing metal fitting applicable to an existing floor panel without removing the floor panel, and preventing uplift and drop out of the floor panel; and a floor panel fixing method using this floor panel fixing metal fitting. <P>SOLUTION: When rotating a bolt 27 of the panel fixing metal fitting 10 in the clockwise direction, a locking part 17 rotates up to contact with a stopper 15 under a floor panel 1. After the locking part 17 contacts with the stopper 15, when further rotating the bolt 27 in the clockwise direction, the locking part 17 is locked on H steel 3 by performing lifting operation by threaded engagement of a female screw part 23 and the bolt 27, and the floor panel 1 is fixed to the H steel 3. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention relates to a panel fixing bracket and a panel fixing method for preventing a floor panel constituting a free access floor from being lifted and dropped.

The floor panel which comprises a free access floor is arrange | positioned on a support body, and space is formed under a floor panel. This underfloor is used for arranging wiring and the like, and for flowing dust-proof air in a clean room. Conventionally, the support panel and the floor panel are not fixed so that the inspection of the wiring under the floor can be easily performed, and the floor panel is merely placed on a support stand arranged on the support structure. It was.

However, if the floor panel is not fixed, the floor panel may rise or fall under the floor in the event of an earthquake. In addition, the equipment installed on the floor panel may fall down due to the floating of the floor panel. For this reason, it is required to fix the floor panel to the support.

The means for fixing the floor panel to the support body includes a panel receiving portion provided on a support base that supports the panel from below, a panel pressing member that fastens the panel from above, and a fastener that engages with the panel pressing member. There is a floor panel fixing device in which the fastener and the panel receiving portion are joined and a panel presser engages the fastener from above the panel (Patent Document 1).

In addition, a locking member having a curved arm portion that is inserted into a through-hole provided in the floor panel and whose front end portion is locked to the locking surface of the support, and mounting for fixing the locking portion to the floor panel There is a fixing member for preventing the floor panel from rising, which is composed of members (Patent Document 2).
JP-A-7-233618 JP-A-11-13263

However, in order to apply the floor panel fixing device described in Patent Document 1 to an existing floor panel, all of the existing support base and the existing floor panel must be newly replaced. All floor panels must be removed. For this reason, it is necessary to evacuate the devices installed on the floor panel, and there is a problem that costs and man-hours are required for fixing.

Moreover, in order to apply the floor panel lifting prevention fixture described in Patent Document 2 to an existing floor panel, it is not necessary to replace the existing support base, but when installing the bracket, the floor panel is partially There is a problem similar to that of Patent Document 1. Moreover, since the fixing position and the metal fitting installation position are separated from each other, there is a problem that a high fixing strength cannot be obtained.

The present invention has been made in view of such a problem, and can be applied to an existing floor panel without removing the floor panel, and the floor panel is fixed to prevent the floor panel from rising and falling off. An object of the present invention is to provide a metal fitting and a floor panel fixing method using the same.

In order to achieve the above-described object, the first invention includes a top plate, a bottom plate, a stopper connecting the top plate and the bottom plate, a locking portion having a screw portion, the top plate and the bottom plate. A bolt that penetrates and engages with the locking portion between the top plate and the bottom plate, and the locking portion until the locking portion contacts the stopper as the bolt rotates. Is a panel fixing bracket, which is rotatable, and the locking portion moves up and down after the locking portion comes into contact with the stopper.

The locking member may have a U-shaped cross section.

According to the first invention, it is possible to provide a floor panel fixing bracket that can be applied to an existing floor panel without removing the floor panel and prevents the floor panel from rising and falling.

2nd invention is the fixing method which fixes the panel mounted on the support body to the said support body, Comprising: The process (a) which inserts the panel fixing metal fitting of Claim 1 in the hole of the said panel, A step (b) of rotating the locking portion by rotating the bolt of the panel fixing bracket; and a step of rotating the bolt of the panel fixing bracket to raise the locking portion of the panel fixing bracket. And a step (c) of fixing the panel.

The hole may be provided in advance in the panel in order to insert the panel fixing bracket into the panel.

According to the second invention, a floor panel fixing method using a floor panel fixing bracket that can be applied to an existing floor panel without removing the floor panel and prevents the floor panel from rising and falling off. Can be provided.

According to the present invention, an existing floor panel can be applied without removing the floor panel, and if the existing panel is a solid type (no hole) floor panel, a hole for mounting a metal fitting is provided. If the existing panel is a grill type floor panel, it can be installed using the existing holes as it is, and the floor panel fixing bracket to prevent the floor panel from rising and falling off is used. It is possible to provide a floor panel fixing method.

Hereinafter, embodiments of the present invention will be described in detail. FIG. 1 is a perspective view showing a state in which the floor panel 1 is installed on a support. The floor panel 1 is disposed on an H steel 3 that is a support supported by a support column 5. A support base 7 is arranged on the H steel 3, and corners of the floor panel 1 are placed on the support base 7. That is, the support base 7 supports the corners of the adjacent floor panel 1 and prevents the floor panel 1 from shifting on the H steel 3.

Since the floor panel 1 is only placed on the support base 7, when the floor panel 1 is installed, the corners of the floor panel 1 may be placed in accordance with the position of the support base 7. Moreover, if the floor panel 1 is lifted, the floor panel 1 can be easily removed from the H-steel 3 and an opening portion under the floor can be obtained.

Thus, if the floor panel 1 is not a special support 7 or floor panel 1, the floor panel 1 can be easily removed, but the floor panel 1 may be lifted or dropped due to an earthquake or the like.

FIG. 2 is an exploded perspective view showing the configuration of the panel fixing bracket 10 for fixing the floor panel 1. The panel fixing bracket 10 includes a top plate 11, a bottom plate 13, a stopper 15, a locking portion 17, a bolt 27 and a retaining portion 19.

The plate-like top plate 11 and the plate-like bottom plate 13 are arranged in parallel to each other and are connected by a rod-like stopper 15. The top plate 11 and the bottom plate 13 are provided with a hole 21 and a hole 25, respectively. The locking portion 7 is a plate-like member having a U-shaped cross section, and has a female screw portion 23 at the U-shaped bottom. The female thread portion 23 is provided at a position shifted slightly from the longitudinal center of the locking portion 17 to the longitudinal end portion. Note that the U-shaped upper end surface of the locking portion 7 is a portion that comes into contact with the floor panel 1, and may be a rough surface in advance in order to prevent sliding with the floor panel 1.

Here, details of how to use the panel fixing bracket will be described later. Since the bottom plate 13 and the locking portion 17 are inserted through the holes in the panel, it is desirable that the bottom plate 13 and the locking portion 17 be as small as possible. The size of is required.

The bolt 27 is inserted from the hole 21 of the top plate 11, screwed into the female screw portion 23 of the locking portion 17, and further penetrates the hole 25 of the bottom plate 13. The end of the bolt 27 is joined to the retaining portion 19 from below the bottom plate 13 to prevent the bolt 27 from coming off the bottom plate 13.

Although the bolt 27 is not specified, a flat head bolt is desirable as the bolt shape so that the head of the bolt 27 does not protrude on the panel during installation. Further, it is desirable that the hole 21 of the top plate 11 also matches the shape of the head of the bolt 27. In addition, although the material of the top plate 11, the bottom plate 13, the latching | locking part 17, and the stopper 15 is not specified, iron, aluminum, etc. can be used.

FIG. 3 is a perspective view showing a state in which the panel fixture 10 is assembled. The locking portion 17 is located between the top plate 11 and the bottom plate 13. The bolt 27 and the locking portion 17 are rotatable, and when the bolt 27 is rotated from above the top plate 11, the locking portion 17 is also rotated.

4-6 is a figure which shows operation | movement of the panel fixing metal fitting 10. FIG. 4A and 4B are diagrams showing a state when the panel fixing metal fitting 10 is inserted into the panel. FIG. 4A is a view seen from above, and FIG. 4B is a view seen from the side. At the stage of inserting the panel fixture 10 into the panel, the locking portion 17 is moved closer to the bottom plate 13 side. In order to move the locking portion 17 up and down, if the bolt 27 is rotated while holding the locking portion 17 so as not to rotate, the bolt 27 and the female screw portion 23 of the locking portion 17 are screwed up and down. Can be moved. At this time, it is desirable to make the longitudinal direction of the locking portion 17 and the top plate 11 coincide.

5A and 5B are diagrams showing the rotation operation of the locking portion 17, in which FIG. 5A is a view seen from above, and FIG. 5B is a view seen from the side. When the bolt 27 is rotated clockwise from above the top plate 11 in the state of FIG. 4 (A direction in the figure), the locking portion 17 is also rotated in conjunction with the bolt operation until it comes into contact with the stopper 15. Here, the locking portion 17 and the bolt 27 can freely rotate, but the locking portion 17 is interlocked with the bolt 27 due to the frictional resistance between the female screw portion 23 of the locking portion 17 and the bolt 27.

6A and 6B are diagrams showing the ascending operation of the locking portion 17, in which FIG. 6A is a view seen from above, and FIG. 6B is a view seen from the side. As shown in FIG. 5, after the locking portion 17 comes into contact with the stopper 15, the bolt 27 is further rotated clockwise so that the bolt 27 and the female screw portion 23 of the locking portion 17 are screwed together. The stop part 17 performs a raising operation (A direction in the figure).

Similarly, when the bolt 27 is rotated in the reverse direction, the locking portion 17 rotates in the rotation direction of the bolt 27, and when the bolt 27 comes into contact with the stopper 15, the locking portion 17 thereafter moves downward. As described above, the locking portion 17 performs the rotating operation until it comes into contact with the stopper 15 in accordance with the rotating operation of the bolt 27, and thereafter performs the lifting operation.

Next, a panel fixing method using the panel fixing bracket 10 according to the present invention will be described. FIG. 7 is a view showing a state in which the floor panel 1 is arranged on the H steel 3, FIG. 7 (a) is a view seen from above, and FIG. 7 (b) is a sectional view seen from the side. FIG.

First, the installation hole 32 is provided at the panel fixing bracket 10 installation position of the floor panel 1. The installation hole 32 can be easily provided by cutting a part of the lattice portion 31 of the floor panel 1. If the bottom plate 13 and the locking portion 17 of the panel fixing bracket 10 can be inserted into the existing hole 29 of the floor panel 1, it is not necessary to provide the installation hole 32 again, and the hole 29 can be used as the installation hole 32. That's fine.

Further, even if the existing floor panel does not have the lattice portion 31 and, for example, the hole 29 does not exist or a punching metal having a small circular shape is used, the bottom plate 13 of the panel fixing bracket 10 and An installation hole 32 into which the locking portion 17 can be inserted may be separately provided with a hole saw or the like.

8A and 8B are views showing a state in which the panel fixing bracket 10 is installed in the installation hole 32. FIG. 8A is a view seen from above, and FIG. 8B is a cross-sectional view seen from the side. It is.

When the panel fixture 10 is inserted into the floor panel 1, the locking portion 17 is brought closer to the bottom plate 13 side as described above. In addition, when the locking portion 17 is in a direction in which the longitudinal direction coincides with the top plate 11, it can be easily inserted into the floor panel 1 and can be inserted even if the installation hole 32 is small. When the installation hole 32 is newly provided, it is desirable that the installation hole 32 is covered by the installation of the panel fixing bracket 10. For this reason, it is desirable that the size of the top plate 11 is sufficient for the panel fixing bracket 10 not to fall from the installation hole 32 and to cover the installation hole 32.

9A and 9B are diagrams showing a state in which the bolt 27 of the panel fixing bracket 10 is rotated. FIG. 9A is a diagram seen from above, and FIG. 9B is a diagram showing a sectional view seen from the side. is there.

When the bolt 27 is rotated clockwise (A direction in the figure) from above the top plate 11, the locking portion 17 is rotated in the B direction in the figure below the floor panel 1. That is, the locking portion 17 rotates to the H steel 3 side. The locking portion 17 rotates with the rotation of the bolt 27, but when it comes into contact with the stopper 15, it cannot be rotated any more and the rotation operation ends. Here, the installation position of the panel fixing bracket 10 needs to be outside the H steel 3 to be locked and within a range where the tip of the locking portion 17 reaches the H steel 3.

FIG. 10 is a view showing a state in which the locking portion 17 is moved upward, FIG. 10 (a) is a view seen from above, and FIG. 10 (b) is a view showing a sectional view seen from the side. .

When the bolt 27 is further rotated in the clockwise direction after the locking portion 17 has contacted the stopper 15, the locking portion 17 performs an ascending operation (A direction in the figure) by the screwing of the female screw portion 23 and the bolt 27. . When the locking portion 17 is raised and locked with the H steel 3, the floor panel 1 is fixed to the H steel 3.

In addition, what is necessary is just to perform the above-mentioned process reversely, when removing the floor panel 1. FIG. That is, when the bolt 27 of the panel fixing bracket 10 is turned counterclockwise, the locking portion 17 is lowered, the locking with the H steel 3 is released, and the locking portion 17 can freely rotate. Therefore, if the panel fixing bracket 10 is removed from the floor panel 1, the floor panel 1 can be removed freely.

According to the present embodiment, since the floor panel 1 is fixed to the H steel 3, the floor panel 1 is not lifted or dropped at the time of an earthquake. There is no safety. In addition, there is no fear of the equipment installed on the floor panel falling due to the floating of the floor panel 1, and the equipment is not damaged.

Further, all work can be performed from the top of the floor panel 1 without removing the floor panel 1. For this reason, the panel fixing operation can be performed without removing the floor panel 1 or evacuating existing equipment installed on the floor panel 1.

Further, the panel fixing bracket 10 can be fixed to the existing floor panel 1 and the H steel 3, and it is not necessary to replace the existing support base 7, and it is not necessary to update the floor panel 1 itself.

As mentioned above, although embodiment of this invention was described referring an accompanying drawing, the technical scope of this invention is not influenced by embodiment mentioned above. It is obvious for those skilled in the art that various modifications or modifications can be conceived within the scope of the technical idea described in the claims, and these are naturally within the technical scope of the present invention. It is understood that it belongs.

For example, if the stopper length of the panel fixing bracket is made longer and the bolt is made longer, it can be fixed to a thicker support. That is, in the present embodiment, the fixing to the H steel as the support has been described, but it can also be fixed to a square pipe or the like instead of the H steel.

The perspective view which shows the state in which the floor panel 1 was installed on the support body. The disassembled perspective view which shows the structure of the panel fixing metal fixture 10 which fixes the floor panel 1. FIG. The perspective view which shows the state by which the panel fixing metal fitting 10 which fixes the floor panel 1 was assembled. The figure which showed the first step at the time of use of the panel fixture 10 (a) is the figure seen from the upper part, (b) is the figure seen from the side. The figure which showed rotation operation | movement of the latching | locking part 17, (a) is the figure seen from upper direction, (b) is the figure seen from the side. The figure which showed the raising operation | movement of the latching | locking part 17, (a) is the figure seen from upper direction, (b) is the figure seen from the side. The figure which shows the state by which the floor panel 1 is arrange | positioned on the H steel 3, (a) is the figure seen from upper direction, (b) is sectional drawing seen from the side. The figure which shows the state which installed the panel fixing metal fitting 10 in the installation hole 32, (a) is the figure seen from upper direction, (b) is sectional drawing seen from the side. The figure which shows the state which rotates the volt | bolt 27 of the panel fixing bracket 10, (a) is the figure seen from upper direction, (b) is sectional drawing seen from the side. It is the figure which showed the state which the latching | locking part 17 raises, (a) is the figure seen from upper direction, (b) is sectional drawing seen from the side.

Explanation of symbols

1 ......... Floor panel 3 ......... H steel 5 ......... Still 7 ......... Support base 10 ......... Panel fixing bracket 11 ......... Top plate 13 ......... Bottom plate 15 ......... Stopper 17 ......... Locking part 19 ........... Preventing part 21 ........ Hole 23 ..... Internal thread part 25 ........ Hole 27 ....... Bolt 29 .......

Claims (4)

With the top plate,
The bottom plate,
A stopper connecting the top plate and the bottom plate;
A locking portion having a threaded portion;
A bolt that penetrates the top plate and the bottom plate and is screwed with the locking portion between the top plate and the bottom plate;
As the bolt rotates, the locking portion can rotate until the locking portion comes into contact with the stopper. After the locking portion comes into contact with the stopper, the locking portion moves up and down. A panel fixing bracket. 2. The panel fixing bracket according to claim 1, wherein the locking member has a U-shaped cross-sectional shape. A fixing method for fixing a panel placed on a support to the support,
A step (a) of inserting the panel fixing metal fitting according to claim 1 into a hole of the panel;
A step (b) of rotating the locking portion by turning the bolt of the panel fixing bracket;
A step (c) of rotating the bolt of the panel fixing bracket to raise the locking portion of the panel fixing bracket and fixing the support and the panel;
A panel fixing method comprising the steps of: The panel fixing method according to claim 3, wherein the hole is provided in advance in the panel in order to insert the panel fixing bracket into the panel.

Images