JPS6320766Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of an auxiliary metal fitting for reinforcing columns supporting floor panels of free access floors such as computer rooms and communication rooms.

Conventional raised floors are designed to be fire resistant and durable, allowing for the installation of computers, communication equipment, etc., and to allow equipment to be wired freely under the floor.

Figures 1 and 2 show the underfloor support structure of a conventional earthquake-resistant free access floor, in which a pair of T-shaped underfloor auxiliary fittings A support and fix a column C supporting a floor panel B, and A connecting fitting D is provided between the underfloor auxiliary fittings A.

By the way, the free access floor shown in Figure 1 is a low-floor type, and since this type of floor is generally used as an underfloor ventilation duct, it may also be a raised floor type in order to ensure a sufficient amount of cold air. be.

However, if the underfloor dimension is increased by making the pillars higher, that is, if the pillars are made higher in the low-floor type shown in Figure 1, if the pillars are made higher, the pillar C
Since only the base of the column C is held by the auxiliary fitting A, there is a drawback that the upper part of the column C is not stable and is inferior in earthquake resistance.

For this reason, in the past, when using a raised floor type, as shown in FIGS. 3 and 4, an auxiliary fitting A was further provided on the top of the underfloor support structure shown in FIG. 1 to hold the middle part of the column C. Pipe E, angle F
Currently, reinforcement is used, but construction costs and construction time are required, and the structure is complicated, resulting in variations in support strength for each pillar C. Also, the use of angles and pipes increases air resistance. However, it also had the disadvantage of not being aesthetically pleasing.

This invention solves the drawbacks of the conventional method, and has a low construction cost, shortens the construction period, has no variation in the support strength of the pillars, has excellent earthquake resistance, has a clean finish, and has better air flow than angles or pipes. To provide an auxiliary fitting for reinforcing a column supporting a floor panel of a free access floor used especially for a raised floor, which has low resistance and good appearance.

Embodiments of the present invention will be described below with reference to the drawings. Figures 5 to 8 show the pillar support fittings that constitute the pillar auxiliary fittings for supporting and fixing the pillars that support the floor panels of the raised floor. It is formed into a trapezoidal shape when viewed from the front, a substantially triangular shape when viewed from the side, and a T-shape when viewed from the top.
That is, an upper side part 2 is provided horizontally on the upper part and has an upper receiving part 3 cut out in a triangular shape at the center of one side thereof,
A lower leg part 4 is provided at the lower part, parallel to the upper side part 2 and having a triangularly cut lower part 5 in the center of one side which is longer in dimension than the upper side part 2, and these upper side parts 2 and lower leg parts 4 are provided. Slanted side parts 6 and 7 are provided between both ends of the frame to form a trapezoidal frame when viewed from the front, and a central leg part 8 is provided perpendicular to the lower leg part 4 at the center of the other side of the lower leg part 4. A central inclined portion 9 is provided between the end of the central leg portion 8 and the center portion of the other side of the upper side portion 2, and is formed into a substantially triangular frame when viewed from the side and a T-shaped frame when viewed from the top. do.

Note that the width a of the upper side 2, the lower leg 4, and the inclined side portions 6, 7 is the same as that of the center leg 8 and the center inclined side 9.
approximately 1/2 of the width b.

10 is the upper side part 2, the lower side leg part 4 and the center leg part 8
A portion of these through holes 10 may be screw holes for screwing in bolts.

A pair of pillar support fittings 1 having such a configuration can be used as an underfloor auxiliary fitting as shown in FIGS. 9 and 1.
Configure the underfloor support structure as shown in Figure 0. below,
The underfloor support structure of a free access floor using the underfloor auxiliary fittings of the present invention and its construction method will be explained with reference to FIGS.
, a pair of pillar support fittings 1, 1 of the present invention, and a connecting fitting 30.

The column 20 has a column bolt 22 provided at the center of a base plate 21, a height adjusting nut 23 of a floor panel holder 25 to be described later is screwed onto the column bolt 22, and a fixing screw 24 is provided on the nut 23.

The floor panel pedestal 25 has a buffer tile 2 on top for placing and locking the corner portion of the floor panel 40.
6 is provided, a locking protrusion 27 is provided, and a fixing screw 28 is further provided.

The column support fitting 1 is as described above, and the connecting fitting 30 is made of channel steel, with notches 31 provided at both ends, and bolt insertion holes 32 on both ends.
is formed.

Therefore, when constructing an underfloor support structure, adhesive is applied to the back surface of the foundation plate 21 and the support column 20 is adhesively fixed to a predetermined position on the concrete floor surface 50. All of the pillars 20 provided in this way are fixed with the fixing screws 24 with the height adjustment nuts 23 at the same height, the panel pedestals 25 are attached to the pillar bolts 22 on the nuts 23, and the fixing screws 28 are tightened. While tightening the panel holder 25 to the support 20,
A pair of pillar support fittings 1 and 1 face each other and are tightened and fixed with bolts and nuts, and the middle and base portions of the pillar 20 are supported by upper and lower receiving parts 3, 3 and 5, respectively. Furthermore, a connecting metal fitting 30 is provided between the pillar supporting metal fittings 1, 1 attached to the pillar 20,
The ends of this connecting fitting 30 are tightened and fixed with bolts and nuts, and the entire connecting fitting 30 is formed into a checkerboard shape when viewed from above.

As mentioned above, the auxiliary metal fittings for reinforcing the pillars of the raised floor according to the present invention support the pillars at two points, the base and the center, so they can stably support the pillars and can be used for raised raised floors. In such a case, the support point for supporting the column is located above, so the column is stably supported and has extremely excellent earthquake resistance.Moreover, since the auxiliary bracket uses a pair of integrally formed column support brackets, In comparison, the construction period can be significantly shortened, construction costs can be reduced, and the finish is clean and air resistance is low, making it suitable for use as an underfloor structure for raised floors used as air conditioning ducts. It is advantageous and exhibits great practical effects.

[Brief explanation of the drawing]

FIG. 1 is a front view of a conventional earthquake-resistant underfloor support structure, FIG. 2 is a plan view of the same, FIG. 3 is a front view of another example, and FIG. 4 is a front view of yet another example.
Further, Fig. 5 is a perspective view of an embodiment of the present invention, Fig. 6 is a front view, Fig. 7 is a plan view, Fig. 8 is a side view, and Fig. 9 is an underfloor support structure using the present invention. FIG. 10 is a front view, and FIG. 11 is a plan view. In the figure, 1, 1... Pillar support bracket, 2... Upper side part, 3... Upper receiver part, 4... Lower leg part, 5... Lower receiver part, 6, 7... Inclined side part, 8 ...Central leg portion, 9...Central inclined side portion.

Claims (1)

[Scope of utility model registration request] an upper side portion 2 having an upper receiving portion 3 in the center of one side;
A lower leg portion 4 having a lower receiving portion 5 at the center of one side;
A central leg portion 8 disposed at the center of the other side of the lower leg portion 4, inclined side portions 6 and 7 disposed between both ends of the upper side portion 2 and the lower leg portion 4, and the upper side portion. 2
Consisting of a pair of pillar support fittings 1, 1 integrally formed with a central inclined side part 9 disposed between the other side central part and the end of the lower leg part 4, these pillar support fittings 1, The upper side parts 2 and 2 and the lower side leg parts 4 and 4 of 1 are tightened and fixed together, and the middle part of the column supports the floor panel of the raised floor at the upper support parts 3, 3 and the lower support parts 5, 5. An auxiliary metal fitting for reinforcing a column of a raised floor, characterized by holding the base.