JPS63272854A - Supporter for floor panel - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a floor panel support device applied to a raised floor.

(Prior technology) A double floor in which many floor panels are laid above a reference floor surface such as a concrete floor, and a free space is secured between the floor panels and the reference floor surface in which cables, ventilation ducts, etc. can be placed. Structures, namely raised floors, are known.

When constructing this raised floor, in order to ensure that the floor panel is laid horizontally, adjust the height of the support legs while checking the installation condition of the entire floor panel during and after laying the floor panel. Is going.

For this reason, floor panels with integrated support legs have been proposed in which support legs whose height can be adjusted from the top are attached to the four corners of the floor panel.

Additionally, in floor panels with separate support legs, height-adjustable support legs are used.

(Problem to be Solved by the Invention) However, in a floor panel with integrated support legs, it is necessary to adjust the height of the support legs at four points per floor panel when or after the floor panel is laid. Adjustments had to be made and there was a problem with poor workability.

On the other hand, when the floor panel and support legs are separate, height-adjustable support legs are used, and after the support legs are fixed to the reference floor surface in advance, each floor panel is placed on the support legs. The corners of the floor panels are placed on the floor, and by adjusting the height of a single support shoulder, the height of the corners of multiple floor panels can be adjusted at the same time, compared to those with integrated support legs. Less work required. However, height adjustment work must be done below the floor panel, and in the case of a low-level free access floor with a height of about 1001 from the standard floor surface, it is impossible to look into the floor from the side of the support legs. There was also the problem of poor work efficiency as the workers were forced to take a difficult posture.

Furthermore, with height-adjustable support legs, screw 8 inevitably has some play as adjustment 1! Because it uses a structure, there were problems with the tilting of the support legs and sinking of the floor panel due to unbalanced loads.

SUMMARY OF THE INVENTION Therefore, the present invention solves the above-mentioned problems of the prior art.The purpose of the present invention is to facilitate the height adjustment of the support legs during and after floor panel installation, and to prevent the support legs from being affected by unbalanced loads. To provide a floor panel support device that can prevent tilting of the floor panel and sinking of the floor panel, and has sufficient seismic performance.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the floor panel support device of the present invention has a structure in which a plurality of corner portions of floor panels placed at intervals from a reference floor surface are assembled. A support leg that supports the floor panel is fixed below the position, and a support shaft having a pair of threaded parts is erected on the base part of the support leg that is fixed to the reference floor surface, and the base part and the floor are connected to each other. An adjustment leg member is interposed between the support leg supporting the corner of the panel and the panel holder, and is screwed onto one threaded part of the support shaft and can be rotated from above the floor panel. A structural feature is that the panel fixing member for fixing the panel holder to the panel holder is screwed and tightened to the other threaded portion of the support shaft of the base portion through the adjusting leg member.

(Function) When constructing a raised floor, first, the base of the support legs is fixed below the location where multiple corners of the floor panels, which are laid at intervals from the standard floor surface, gather. Place the corner of the floor panel on the panel holder and lay the floor panel.

Then, when the adjustment leg member is rotated from above the floor panel while checking the installation condition of the entire floor panel, the adjustment leg member rotates in the vertical direction with respect to one threaded part of the support shaft of the base. Along with this movement, the panel holder also moves in the vertical direction, and the heights of the corners of the plurality of floor panels are adjusted simultaneously.

After the floor panel is installed, the height of the corner of the floor panel can be adjusted by rotating the adjusting leg member from above the floor panel. When the height adjustment work is completed, screw the panel fixing member through the adjustment leg member and tighten it to the other threaded part of the support shaft, and the floor panel will be pressed against the panel holder and fixed by the panel fixing member. With,
Force acts on the adjustment leg member from the panel holder,
The pressing force causes the 1JiT leg adjustment member to be pressed against one threaded portion of the support shaft. This eliminates play between the adjustment leg member and one of the threaded portions, that is, play in the adjustment mechanism portion.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

1 to 3 show a first embodiment in which the present invention is applied to a low-level raised floor. The free access floor 1 is constructed by laying a plurality of floor panels 2 on a reference floor surface 3 such as a concrete floor. It is fixed to the reference floor surface 3 before laying.

As shown in FIG. 1, the support leg 4 is disposed below a position where corner portions 2a of four adjacent floor panels 2 gather in the center of the raised floor 1, and Corner portions 2a of two adjacent floor panels 2 on the wall side of 1
It is placed below the location where the

As shown in FIGS. 2 and 3, the support leg 4 includes a rectangular base portion 6 fixed to the reference floor surface 3 with fixing means 5 made of bolts and nuts, and a corner portion of the floor panel 2. It is composed of a panel holder 7 on which the panel holder 2a is placed, and a sleeve-shaped adjustment leg member 8 interposed between the base 6 and the panel holder 7.

Here, a short cylindrical support shaft 9 is provided at the center of the upper surface of the base portion 6.
is provided upright, and the support shaft 9 is formed with a plurality of threaded portions 9a and 9b. That is, a threaded portion 9a (one threaded portion) which is a male screw is formed on the outer peripheral surface of the upper end of the support shaft 9, and a threaded portion 9b (which is a screw hole) is formed at the center of the upper end surface of the support shaft 9.
The other threaded portion) is formed. In addition, the adjustment leg member 8
A threaded groove 8a is formed on the inner circumferential surface of the threaded part 9a, and a hexagonal engagement protrusion 10 is formed on the upper end thereof.
Further, a flange portion 11 for supporting the panel holder 7 is formed on the outer periphery of the lower end. Further, the panel holder 7 is constructed by fixing a cylindrical part 13 into which the adjustment leg member 8 is fitted into the center of a substantially square mounting base 12, and is supported by the flange part 11 of the adjustment leg member 8. It is located at the upper end of the support leg 4 in a state where it is held in place. A detent recess 13a is formed at the lower end of the cylindrical portion 13, and a detent convex portion 11a is formed on the upper surface of the flange portion 11, with which the detent recess 13a engages. Projections 14 are provided at the four corners of the upper surface of the mounting table 12, and after the floor panel 2 is laid down, the projections 14 engage with recesses 2d provided in the bottom surface of the corner part 2a of the floor panel 2. When adjusting the height, the cylindrical part 13
Even if the adjusting leg member 8 rotates within the panel holder 7, the panel holder 7 is prevented from rotating accordingly.

The floor panel 2 is formed into a substantially square shape, has a flange 2e at its periphery, and is provided with a quadrant-shaped step portion 2b and a notch portion 2C at each corner portion 2a. This corner portion 2a is fixed onto the mounting table 12 by a panel fixing member (a disk-shaped panel retainer 15 and a headed bolt 16). To explain this fixed state in detail, an annular stepped portion 15a is provided on the lower surface of the panel holder 15, and a stepped insertion hole 15b is provided in the center. Space created by gathering four pieces (space formed by step part 2b and cutout part 2c)
17 to engage the annular stepped portion 15a with the stepped portion 2b, and a bolt insertion hole formed in the through hole 15b in the center of the panel holder 15 and the engagement convex portion 10 at the upper end of the adjustment leg member 8. It is fixed by inserting a headed bolt 16 into the threaded portion 9b and tightening it.

Now, the method of constructing the raised floor 1 will be explained based on FIGS. 1 to 3. First, the base portion 6 is fixed by fixing means 5 made of bolts and nuts at a position where four or two corner portions 2a of the floor panel 2 are assembled. Note that instead of the fixing means 5, an adhesive may be used for fixing.

Next, the adjustment leg member 8 is rotated about the threaded part 9a of the support shaft 9 to roughly adjust the height, and the corner part 2a of the floor panel 2 is placed on the mounting table 12, and the floor panel 2 is placed. Lay down. During this installation, while checking the overall installation condition of the floor panel 2, a tool is inserted through the space 17 where the panel retainer 15 fits and the cylindrical portion 13, and engaged with the hexagonal engagement convex portion 10. The leg adjustment member 8 is rotated. As a result, the adjustment leg member 8 rotates relative to the threaded portion 9a of the support shaft 9 and moves in the vertical direction. At this time, as the adjustment leg member 8 rotates, the panel holder 7 also tries to rotate, but the protrusion 14
Since rotation is prevented by engagement with the recess 2d, the panel holder 7 moves only in the vertical direction along with the adjusting leg member 8 without rotating. Note that when the adjusting leg member 8 rotates within the cylindrical portion 13, the anti-rotation convex portion 11a is once removed from the anti-rotation recess 13a, and then engages with the anti-rotation recess 13a again at the adjusted position.

By rotating the adjustment leg member 8 in this way, the corner portions 2a of the four floor panels 2 can be moved up and down at the same time, reducing the adjustment work by 38 times compared to a floor panel with integrated support legs. This can significantly improve work efficiency. In addition, since the adjustment work is done from above the floor panel 2, you are not forced into an unreasonable posture unlike when adjusting from below the floor panel.
From this point of view as well, work efficiency can be improved, and furthermore, since the adjustment work can be carried out while closely observing the laid portion of the floor panel 2, it is possible to perform the adjustment work accurately.

After adjusting the height as described above, press the panel retainer 15.
The corner portion 2a of the floor panel 2 is fixed onto the mounting table IZ using the head bolts 16 and the head bolts 16. At this time, since the headed bolt 16 is fixed by passing through the adjustment leg member 8 and tightening it into the threaded part (screw hole) 9b of the support shaft 9, the headed bolt 16 is connected to the floor panel 2. , panel holder 7
A pressing force acts on the adjusting leg member 8 in the direction of the arrow A shown in FIG. As a result, play between the screw thread 8a of the adjusting leg member 8 and the threaded portion 9a of the support shaft 9 is eliminated.

Conventionally, when a screw mechanism is used for the height adjustment mechanism, there is play in the adjustment mechanism, which causes the adjustment mechanism to tilt due to unbalanced loads, creating a step between floor panels, and horizontal loads caused by earthquakes, etc. acts on the support leg 4, the upper end side adjusts! 1! Since the bins are connected side by side, a larger bending moment acts on the lower end side, and there is a risk that the supporting legs 4 may fall. In this embodiment, as described above, the screw 8a of the adjustment leg member 8 and the screw portion 9a of the support shaft 9
By fixing the floor panel 2 to the upper end of the support leg 4 and integrating it, the floor panel 2 is fixed to the upper end of the support leg 4 and integrated, thereby approximating a rigid rigid frame structure. Even if the support leg 4
There is a large bending moment (overturning moment) on the lower end side of the
does not work, and there is no danger of the support leg 4 falling over.

In order to readjust the height of the floor panel 2 after it has been laid, it is sufficient to remove the panel retainer 15 and headed bolt 16 and rotate the adjustment leg member 8 in the same manner.

Note that the support legs 4 disposed on the wall side of the free access floor 1, that is, below the position where two corner portions 2a of the floor panel 2 are assembled, are not shown, but the basic configuration is as shown in FIG. It is basically the same as the support leg 4 shown in FIG. However, the support legs on the wall side are adjusted in advance for work purposes, and after they are fixed, the floor panel 2 is placed and fixed.

FIG. 4 shows a second embodiment in which the present invention is applied to a raised floor type free access floor. In this second embodiment, a support shaft 9 is provided upright on the base plate 6 via a support 18. Further, the adjustment leg member 8 is formed into a sleeve shape so that the headed bolt 16 passes through it, and a through hole 19 is provided at the upper end thereof, and a screw screw threaded into the threaded portion 9a is provided at the inner circumferential surface of the lower end thereof. A hole (not shown) is provided, a flange portion 11 for supporting the panel holder 7 is provided on the outer peripheral surface near the lower end thereof, and an engagement groove 20 in which a tool engages is provided on the upper end surface. A cross-shaped stringer holder 21 is provided on the upper surface of the mounting table 12 of the panel holder 7.
The end of the stringer 22, which is installed between the upper ends of the stringer 22, is adapted to engage with the stringer holder 21. A hole 21 a communicating with the cylindrical portion 13 is formed in the center of the stringer holder 21 .

The other components are the same as those shown in the first embodiment shown in FIGS. 2 and 3.

For raised floor type free access floors, the adjustment leg member 8
Since the threaded portion between the screw hole and the threaded portion 9a of the support shaft 9 (the portion where there is play, that is, the portion where the bottle is connected) is located at a higher position than the reference floor surface 3, the board portion 6 is placed on the reference floor surface. 3
The bending moment (overturning moment) caused by the separation from the support #4 is larger than that of the low-floor type, and there is a high risk that the support #4 will fall due to an earthquake. 9 to the threaded portion 9b and tighten to eliminate play in the threaded portion between the screw hole of the adjustment leg member 8 and the threaded portion 9a, and fix the floor panel 2 to the upper end of the support leg 4 to integrate it. By creating a Ramen structure,
Even if a horizontal load due to an earthquake or the like acts, a large bending moment (overturning moment) does not act on the lower end side of the support leg 4, and there is no danger of the support leg 4 falling over.

5a and 5b show another embodiment of the adjusting leg member 8. FIG. The adjustment leg member 8 shown in figure a has a straight shape,
The entire upper end portion is open to form a through hole 23 for the headed bolt 16. Furthermore, an engagement groove 24 is provided on the edge of the opening, with which a tool engages when adjusting the height. Further, the adjusting leg member 8 shown in the same figure has a straight shape and has a closed upper end surface. A retaining portion 25 is provided on the edge of the upper end surface of the adjustment leg member 8, with which a tool engages when adjusting the height, and a hole 26 for positioning the tool is provided in the center of the upper end surface. The positioning hole 26 is a through hole for the headed bolt 16.

(Effects of the Invention) As explained above, according to the floor panel support device of the present invention, the height can be adjusted from above the floor panel at a position where a plurality of corners (parts of corners) of the floor panel gather. Since the support legs are arranged so that the height of one support leg can be adjusted, the height of the corners of multiple floor panels can be adjusted at the same time, and there is no need to force an unreasonable posture during this adjustment work. Therefore, height adjustment work can be easily performed during and after floor panel installation.

In addition, since the panel fixing member passes through the adjustment leg member and is screwed and tightened to the other threaded part of the support shaft of the base, play in the yIu a rllf portion is eliminated and the support leg 4 is tightened. The floor panel 2 can be fixed to the upper end to create an integrated rigid frame structure, and even if an uneven load is applied, the support legs 4 will not tilt and create a step in the floor panel 2, which will prevent earthquakes, etc. A large overturning moment does not act on the lower end side of the support leg due to the horizontal load, so there is no risk of the support leg overturning, and sufficient earthquake resistance is achieved.

[Brief explanation of drawings]

1 to 3 show a first embodiment of the present invention, FIG. 1 is a partial perspective view of a free access floor equipped with a support device according to the first embodiment of the present invention, and FIG. 5 is an exploded perspective view of the support leg portion of the first embodiment. FIG. 3 is a sectional view of the same portion, and FIG. 4 is an exploded perspective view of the second embodiment of the present invention. Figures a and b are perspective views showing other embodiments of the adjusting leg member. 1...Free access floor 2...Floor panel 3...Reference floor surface 4...
Support leg 6...Base part 7...Panel holder 8...Adjustment leg member 9...Spindle
9a... One threaded part 91J... Other threaded part 10a, 23.26... Through hole 15... Panel retainer 16... Headed bolt patent applicant Naka Kogyo Co., Ltd. (5 others) )

Claims (1)

[Claims] (1) A support leg that supports the floor panel is fixed below a location where a plurality of corner parts of the floor panel installed at intervals from the reference floor surface gather, and the support leg is attached to the reference floor surface of the support leg. A support shaft having a pair of threaded parts is erected on the base part to be fixed,
Between the base part and the panel holder of the support leg that supports the corner of the floor panel, there is provided an adjustable leg member which is screwed onto one threaded part of the support shaft and which can be rotated from above the floor panel. A panel fixing member interposed therebetween and further fixing the floor panel to the panel holder is configured to pass through the adjustment leg member and be screwed and tightened to the other threaded part of the support shaft of the base part. Features a floor panel support device.