JPS63255461A - Machinery anchoring apparatus of free access floor - 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 (Industrial Application Field) The present invention is a free access system that prevents R equipment such as computers installed on a raised floor from moving or falling down due to earthquakes, etc. This relates to floor equipment installation equipment.

(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 installing electronic equipment such as an electric Xi on such a raised floor, if the electronic equipment is moved or falls over due to an earthquake, etc., accidents such as damage to the equipment itself, disconnection of cables, etc. may occur. This happens, so we need to prevent it from happening.

Conventionally, as a means for preventing electronic equipment such as computers installed on a raised floor from moving or falling over, methods disclosed in Japanese Patent Publication No. 55-2919 and Japanese Utility Model Application Publication No. 80-83143- are known. It is being

In the former (Japanese Patent Publication No. 55-2919), the floor panel installed at the equipment installation position on the raised floor is removed, and a floor panel that is approximately the same size as the bottom of the electronic equipment is installed. By fixing a pedestal set slightly higher than the above to the concrete floor at the bottom of the free access floor, and connecting the pedestal and the bottom of the equipment installed on it with bolts, etc., electronic equipment can be prevented from moving or falling over. It is prevented.

Moreover, in the latter (Utility Model Application Publication No. 60-83143), a recess is formed on the surface of the floor panel.
moving the electronic device by engaging the legs of the electronic device in the recess;
Prevents falls, etc.

<Problems to be solved by the invention> However, in the former case, there are problems that make the installation troublesome, such as the need to determine the installation position of the computer etc. in advance before laying the floor panel. On top of that, there was a problem that the layout could not be changed. Further, because such a fixing device partially partitions the underfloor space of the raised floor due to its structure, the convenience of wiring, piping, etc., which is the original function of the raised floor, is impaired. Furthermore, when replacing equipment that has been installed or introducing a new model, it becomes necessary to move the equipment, and in this case, it is necessary to move the installation location of the fixed device each time. Therefore, it takes a lot of effort and time, and it becomes necessary to stop the operation of the installed equipment as the fixing device is moved, which further increases the harm caused by replacing the equipment.

On the other hand, in the latter case, since the floor panel is not fixed, there is a problem that the floor panel itself may be lifted up due to the shaking of a computer, etc., and since a recess is formed in the floor panel itself, it is difficult to process the floor panel. This is troublesome, and there is also the problem of having to prepare various types of floor panels depending on the size of the equipment to be installed.

SUMMARY OF THE INVENTION The present invention is intended to solve the above-mentioned problems of the prior art, and its purpose is to prevent equipment on raised floors from moving, overturning, or being damaged due to earthquakes, etc., and to prevent cables from being disconnected or damaged. In addition, it is easy to construct, it is easy to change the layout and add equipment, and it is easy to process the floor panels, there is no need to prepare various types of floor panels, and there is no problem with the floor panels themselves lifting up. The purpose of the present invention is to provide an equipment installation device that does not require a raised floor.

(Means for Solving All Problems) In order to achieve the above-mentioned object, the equipment installation device for a raised floor of the present invention fixes a floor panel with a panel presser on support legs fixed to a reference floor surface. In addition, on the surface of the floor panel where the equipment is installed, fixing hardware consisting of a leg holder that prevents the legs of the equipment from moving and an anti-lifting fitting that prevents the legs from lifting up is installed. A feature of the structure is that it is fixed via a fastening means such as a bolt inserted through an adjustment slit in the metal fitting.

(Function) When constructing equipment installation equipment on a raised floor, support legs are fixed to the standard floor surface, a floor panel is laid on the upper end of the support legs, and the floor panel is fixed to the support legs with panel retainers. A fixing metal fitting consisting of a leg support metal fitting and a floating prevention metal fitting is fixed to the surface of the floor panel at the equipment installation position via a fastening means such as a bolt inserted through an adjustment slit of the floating prevention metal fitting. In addition, the fixing bracket may be fixed to the floor panel in advance, so that even in the event of an earthquake, the leg holder of the fixing bracket will not only prevent the legs of the equipment from moving, but also prevent it from floating. prevents the legs from floating,
Furthermore, since the panel retainer fixes the floor panel to the support legs, the equipment is prevented from moving, falling over, etc., and the floor panel is also prevented from floating up. Note that by loosening the fastening means and moving the fixing metal fitting along the adjustment slit, and rotating the fixing metal fitting to change the mounting position of the fixing metal fitting, the device can be installed at any position on the floor panel.

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

1 to 6 show one embodiment of the present invention.

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 the corner portions 2a of four adjacent floor panels 2 come together in the center of the raised floor 1, and On the wall surface side, the corner portions 2a of two adjacent floor panels 2 are arranged below a location where they come together.

As shown in FIG. 2, the support leg 4 has a cylindrical column 6 erected at the center of the upper surface of the pedestal base 5 via a height adjustment mechanism 8, and a stringer at the upper end of the column 6. The receiver is on stand 7
It is configured by fixing it.

The height adjustment fi structure 8 is composed of a screw shaft 9 erected at the center of the upper surface of the pedestal base 5, and an adjustment nut 10 that supports the lower end of the support column 6 and is screwed onto the screw shaft 9. ing. The adjustment nut 10 is loosely fitted to the lower end of the column 6.
Fastening member 11 consisting of bolts and nuts provided at the lower end of
By loosening and rotating the adjusting nut 10, the adjusting nut 10 moves up and down along the screw shaft 9 together with the support column 6, and the height is adjusted. Also, the stringer receiver is on stand 7.
is formed in a cross shape and supports each end of the four stringers 12 assembled on the support leg 4. This stringer receiver has a convex portion 7a provided on the bottom surface of the portion of the stand 7 that supports the end portion of the stringer 12, and is fitted into a hole 12a provided on the bottom surface of the end portion of the stringer 12.

The stringer 12 is installed between the upper ends of the support [4] so as to extend along the four sides of the floor panel 2.
The support supports the four sides of the floor panel 2 and carries the load applied to the floor panel 2. Note that the stringer receiver at the upper end of the support column 6 protrudes from the center of the stand 7, and a screw hole 6a is provided at the upper end.

Each corner portion 2a of the floor panel 2 is provided with a quadrant-shaped step portion 2b and a notch portion 2c. This corner portion 2a is fixed to the upper end of the support leg 4 by a disk-shaped panel retainer 13. In other words, the panel holder 13
An annular stepped portion 13a is provided on the lower surface, and a stepped insertion hole 13b is provided in the center. Space formed by portion 2b and cutout portion 2c) 14
At the same time, the headed bolt 15 is inserted into the through hole 13b in the center of the panel retainer 13 and screwed into the screw hole 6a at the upper end of the column 6. are screwed together. In this way, by pressing the corner portion 2a with the panel presser 13 and fixing it to the upper end of the support leg 4, the floor panel 2 is prevented from lifting up. In addition, the stringer 12 is connected to the floor panel 2.
However, since the stringer receiver is pressed against the stand 7 and fixed, the stringer 12 and the support leg 4 are firmly connected to form a rigid frame structure. Therefore, even if a lateral force is applied due to an earthquake, a large bending moment acts on the upper end of support leg #4, which is received by stringer 12, and a small bending moment acts on the lower end of support leg 4. The force to peel off the pedestal base 5 from the reference floor surface 5 is small, and there is no need to increase the adhesive area of the pedestal base 5, and the support I! There is no need to support 1II4 with a reinforcing rod. In other words, on the surface of the floor panel 2 at a position where equipment 15 such as a computer on the free access floor 1 for wiring etc. is installed, there are fixing fittings 16 on the surface of the floor panel 2 as shown in FIG. is located. As shown in FIG. 3, this fixing metal fitting 16 includes a metal fitting 18 for preventing the leg part 17 of the device 15 from moving, and a floating prevention metal fitting 19 for preventing the leg part 17 from lifting up. It consists of Incidentally, the floor panel 2 is installed only by fixing the fixing fittings 16 to the surface thereof, and the dimensions and shape are the same as those of the standard floor panel 2 installed at other positions.

The leg support metal fitting 18 is constructed by providing a hole 18b in the center of a rectangular plate piece 18a into which the lower end portion 1a of the leg portion 17 fits. Further, as shown in FIGS. 4 to 6, the lifting prevention metal fitting 19 is a long piece having both longitudinal end portions bent toward the surface of the floor panel 2 and a middle portion raised from the surface of the floor panel. It is constructed by providing reinforcing ribs (side wall plates) 19b, 19b along both side edges of a flat plate portion 19a.

An engagement groove 20 that engages with the portion 17a is provided, and an engagement hole 18j formed in the metal fitting 18 is provided on the back surface of the one end portion.
, 18c are provided with engaging projections 21.21 (see FIG. 3). Further, an adjustment slit 22 extending in the length direction is formed in the intermediate portion of the flat plate portion 19a, and a rack plate 23 having a slit 23a that matches the adjustment slit 22 is provided on the back side of the intermediate portion to prevent bolts and nuts from being removed. It is fixed by a fastening member 24.24.

A rack portion 23b is formed on the lower surface of the rack plate 23,
A rack portion 23 is provided between the lower surface and the surface of the floor panel 2.
A movement prevention block 25 is interposed which has a rack portion 25a that meshes with b. Flat plate part 1 configured in this way
9a is fixed to the floor panel 2 with fixing bolts 26. That is, the adjustment slit 22, the slit 23a,
An insertion hole 25b formed in the center of the movement prevention block 25
The flat plate part 19a is attached to the floor panel 2 by inserting the fixing bolt 26 through the mounting hole 2d formed in the floor panel 2 and screwing it into the nut 27 press-fitted into the back side of the mounting hole 2d of the floor panel 2. Fixed. At this time,
One end in the length direction of the flat plate portion 19a is the lower end portion 1 of the leg portion 17.
7a, and the other end in the length direction is pressed against and fixed to the surface of the floor panel 2.

As a result, the movement prevention block 25 is pressed and fixed against the surface of the floor panel 2 by the flat plate part 19a, and the rack part 25a of this movement prevention block 25 engages with the rack part 23a of the rack plate 23, so that the floating The prevention fittings 19 are prevented from moving along the adjustment slits 22 at a fixed distance around the fixing bolts 26 and are similarly fixed, and rotation is also prevented by the fixing fittings 16 being pulled together. Therefore, the leg holder is securely fixed to the floor panel 2, and the leg holder 18 is engaged with the engagement protrusion 21 and the engagement hole 18c to prevent floating of the metal 1.
9 prevents movement, it is also securely fixed to the floor panel 2.

Note that the fixing metal fitting 16 is fixed. floor panel 2
That is, for installation, the floor panel 2 has four mounting holes 2d formed in advance, as shown in FIG.

In the above embodiment, when installing the device 15, the first
As shown in the figure, for each installation, the fixing bracket 16 is placed on the floor panel 2, the equipment 15 is installed, and the lower end portion 17a of the leg 17 is fitted into the hole 18b of the leg bracket 18. At the same time, the fixing fitting 16 is fixed to the floor panel 2 by engaging the engagement groove 20 of the floating prevention fitting 19 with the lower end portion 17a and pulling the leg portion 17 in four directions. As a result, even in the event of an earthquake, the inner wall surface of the hole 18b presses the lower end portion 17m to prevent movement, and one end portion of the flat plate portion 19a provided with the engagement groove 20 presses the lower end portion 17m into the floor panel. 2 to prevent it from floating up, and furthermore, by shaking the device 15, etc.
Even if a floating force is applied to the floor panel 2 from above, the pressing force of the panel presser 13 acts in a direction to suppress the floating force, and as a result, the swinging of the equipment 15 is suppressed to a minimum, and the equipment 15 is prevented from falling over. Movement and floating are prevented, and furthermore, the floor panel 2 is prevented from floating.

As shown in FIG. 7, the device 15 can be mounted between the large circle and the small circle by moving the adjustment slit, and by appropriately selecting the four pre-formed mounting holes 2d, the device 15 can be mounted on the floor panel 2. Can be installed at any position on the entire surface.

When changing the layout or adding more equipment 15, this can be easily done by replacing the floor panel 2 with the floor panel 2 at the new mounting position.

In this embodiment, the length of the floating prevention fitting 25 may be set short, while the number of mounting holes 2d in the floor panel 2 may be increased to cope with layout changes, etc.

(Effects of the Invention) As explained above, according to the equipment installation device for a raised floor of the present invention, the leg holders for preventing the movement of the legs of the equipment are mounted on the surface of the floor panel with the metal fittings and the floating parts of the legs. Equipped with a fixing bracket consisting of a lifting prevention bracket that prevents the equipment from moving, falling over, or being damaged due to earthquakes, etc., and preventing cables from being disconnected or damaged. Installation is easy during construction.

In addition, installations equipped with fixing brackets allow you to easily change the layout or add equipment by replacing the floor panel with a standard floor panel. Since the device is fixed to the floor panel using the fastening means, by loosening the fastening means and moving and rotating it along the adjustment slit, the fixing position of the fixing bracket can be changed and the device can be installed at any position on the floor panel. In addition, there is no need to prepare various types of floor panels depending on the size of the equipment, and when installing the equipment, the floor panels can have the same configuration as standard floor panels. This eliminates the need for labor-intensive steps such as forming recesses in the floor panel into which the legs of the equipment engage, and the floor panel can be easily processed.

Further, since the floor panel is fixed on the support legs by the panel presser, the floor panel is prevented from floating due to the floating of the equipment.

[Brief explanation of the drawing]

1 to 6 show an embodiment of the present invention,
Fig. 1 is a partial perspective view of a free access floor equipped with the installation device of the present invention, Fig. 2 is a side view with part of the support legs cut away, and Fig. 3 is an exploded perspective view of the fixing bracket. , 4th
The figure is a plan view of the fixture, Figure 5 is a sectional view of the fixture, Figure 6 is an exploded perspective view showing how the fixture is installed, and Figure 7 is an explanation showing the positions where the equipment can be installed. It is a diagram. 1...Free access floor 2...Floor panel 3...Reference floor surface 4...Support legs 16...Fixing metal fittings 18...Leg supports are metal fittings 19...Floating prevention metal fittings 17. ··leg
15... Equipment 22... Adjustment slit 26... Fastening means (fixing bolt) (5 people) Figure 2 Figure 3 Figure 7 Figure 6

Claims (1)

[Claims] (1) A floor panel is fixed by a panel retainer on the support legs fixed to the standard floor surface, and a leg support metal fitting to prevent the movement of the legs of the equipment is attached to the surface of the floor panel where the equipment is installed. 1. A free access floor, characterized in that a fixing fitting consisting of an anti-lifting fitting for preventing floating of a portion of the floor is fixed via a fastening means such as a bolt inserted through an adjustment slit of the anti-lifting fitting. equipment installation equipment.