JPH046447Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a floor plate for a raised floor.

Conventional technology Conventionally, in computer rooms, telephone exchange rooms, information processing equipment rooms, and clean rooms where semiconductors and precision equipment are produced, cables for these electronic devices and pipes for cleaning water, etc., have been housed under the floor. In order to enable underfloor air conditioning, floorboards called a free access method are used, and no matter where the floorboards are laid or the position of each floorboard is replaced, each floorboard will fit tightly without any gaps. It has a double floor structure.

A conventional floorboard used for this raised floor will be explained based on the drawings.

Here, FIGS. 4 to 6 show conventional floorboards for raised floors, and FIG.
A plan view, FIG. 5 is a front view cut along the line A-A in FIG. 4, and FIG. 6 is a back view. The size of this floorboard 1 is 450mm x 450mm or 600mm x 600mm.
etc., and the structure is such that the four corners are supported by support legs via adjustment tables, so there is a The ribs formed are radial ribs 2 that have been carefully studied mechanically, as shown in FIG.

In order to obtain sufficient strength, these conventional floorboards have ribs formed in a radial pattern, which has the disadvantage of making the floorboard heavy and requiring a large amount of time and man-hours to make the molds. .

In addition, an outer frame made of angle-shaped steel is welded to the periphery of the back surface of the steel plate, ribs that are taller than the outer frame are fitted vertically and horizontally into the inside of the outer frame, each contact part is welded, and mounting bolts are attached to the periphery. A steel floor panel with holes is known as Utility Model Application No. 128037/1983.

Since the vertical and horizontal ribs of this product have the same height, the ribs arranged in a direction that does not reinforce the outer frame for supporting the load on the floor are formed unnecessarily tall. Similar to floorboards, floor panels have the disadvantage of being heavy, and when used as floorboards for raised floors, it is difficult to pass electric wires etc. under the floor, which obstructs air circulation under the floor.

Problems to be solved by the invention The purpose of the invention is to have sufficient strength to support floor loads without deformation, be lightweight, have good ventilation under the floor, and be easy to wire and pipe. The purpose of the present invention is to provide floorboards for raised floors.

Means for Solving the Problems In order to solve the above problems, the raised floor board of the present invention has a parallel outer frame for supporting the load on the floor, and a parallel outer frame that intersects with this and does not support the load on the floor. and a plurality of back side horizontal ribs parallel to the outer circumferential frame for supporting the load on the floor, and a plurality of back side vertical ribs intersecting the back side horizontal ribs, and the height of the back side horizontal ribs is set to It has a structure characterized by being higher than the vertical ribs.

Function: By increasing the height of the back side horizontal ribs parallel to the outer peripheral frame for supporting the load on the floor, the outer peripheral frame is sufficiently reinforced, and the height of the many back side vertical ribs and the outer peripheral frame that intersect with the back side horizontal ribs is reduced. By making the height smaller than the horizontal ribs on the back surface, the weight of the floorboard is reduced, and air is circulated by running piping and wiring under these short ribs.

Embodiments Hereinafter, embodiments of the present invention will be described based on the drawings.

Here, FIGS. 1 to 3 show a floorboard for a raised floor according to an embodiment of the present invention, in which FIG. 1 is a back view, FIG. 2 is a front view, and FIG. , is a rear perspective view.

In the figure, 3b and 3b' respectively indicate a horizontal frame part 3 forming a parallel outer peripheral frame 3 for supporting the floor load of the floorboard 1;
a and 3a' are vertical frame parts that intersect with the vertical frame parts 3b and 3b' and form the same parallel peripheral frame 3 that does not support the floor load, and 4a is a plurality of vertical frame parts parallel to the vertical frame parts 3a and 3a'. The back vertical ribs 4b of the floorboard 1 are a plurality of back horizontal ribs that intersect with the back vertical ribs 4a.

The back side horizontal ribs 4b have an inverted chevron shape with both ends of the lower edge being formed diagonally, and the height thereof is larger than the height of the outer peripheral frame 3 and the back side vertical ribs 4a.

Further, the back vertical ribs 4a and the back horizontal ribs 4b intersect with each other, and both ends thereof are connected to the outer peripheral frame 3, respectively.

The main floor board 1 is not supported by support legs at the four corners via an adjustment table, but by the vertical frame portions of the outer peripheral frame 3.
a, 3a' are placed on a support member 5 such as a shaped steel or a square pipe, and the support member 5 is supported on a base by height-adjustable support legs (not shown).

Therefore, the weight of the equipment placed on the floorboard 1 is
In the past, the horizontal frame parts 3b and 3b' had vertical frame parts 3a and 3b'.
It does not apply to 3a.

However, the back side horizontal ribs 4b that reinforce the horizontal frame parts 3b, 3b' are formed higher than the outer peripheral frame 3 and the back side vertical ribs 4a, and the horizontal frame parts 3b, 3b' are formed between the vertical frames 3a, 3a'. Since they are provided at multiple locations in parallel in the same direction, sufficient reinforcing ribs are formed and can sufficiently withstand the weight of the device.

Effects of the Invention As explained above, in the raised floor board of the present invention, the weight of the equipment placed on it is applied only to the outer peripheral frame in one direction, so the height of the back horizontal ribs provided parallel to that direction is By forming the height to be higher than the height of the outer peripheral frame and the back vertical ribs, it is sufficiently reinforced and can withstand the weight of the equipment.

In addition, although it can reliably support even a thin floorboard by providing horizontal ribs on the back side and vertical ribs on the back side, the vertical ribs on the back side that do not reinforce the outer peripheral frame for supporting the load on the floor can be lowered to make it lighter. At the same time, the height of the outer frame can be made lower due to the reinforcing effect of the horizontal ribs on the back side, making it possible to reduce the weight of the entire raised floor board. A sufficient gap is automatically formed between the low vertical rib on the back side of the base plate and the base plate, so wiring can be easily installed inside the floorboard through this gap.
It is possible to protect the wiring and piping by preventing obstacles from colliding with the wiring and piping, and the air circulation under the floorboard becomes extremely good.

[Brief explanation of drawings]

1 to 3 show a floorboard for a raised floor according to an embodiment of the present invention, in which FIG. 1 is a back view, FIG. 2 is a front view, and FIG.
The rear perspective view and FIGS. 4 to 6 show a conventional floorboard for a raised floor. FIG. 4 is a plan view, and FIG. The front view shown and FIG. 6 are back views. 1... Floor board, 3... Outer frame, 3a, 3a'... Vertical frame portion, 3b, 3b'... Horizontal frame portion, 4a... Vertical rib on back surface, 4b... Horizontal rib on back surface, 5... Supporting material .

Claims (1)

[Scope of utility model registration request] A parallel outer peripheral frame for supporting a load on the floor, a parallel outer peripheral frame that intersects with this and does not support the load on the floor, a plurality of back horizontal ribs that are parallel to the outer peripheral frame for supporting the floor load, and a plurality of back side ribs that intersect with the back side horizontal ribs. 1. A floorboard for a raised floor, comprising a plurality of back side vertical ribs, the height of the back side horizontal ribs being higher than each of the outer peripheral frames and the back side vertical ribs.