JPS5835806Y2 - Free access floor rolling unit - Google Patents

Description

[Detailed explanation of the invention] The present invention is a so-called free floor panel that can be used in floor structures such as computer rooms, communication rooms, etc. where earthquakes and impact movement of the floor panels are avoided. -Relating to rolling units used for access floors.

The so-called free access floor is a structure in which a steel ball is rotatably stored at the tip of a column that supports the floorboard, and the steel ball is rolled on a fixed board fixed on the floorboard (foundation), allowing the entire floorboard to be covered. They are usually constructed so that they can move freely.

In this case, simply arranging multiple columns with steel balls stored in their ends in parallel would weaken the strength and stability of the entire floorboard, so each column is connected with a reinforcing frame and the entire floorboard is assembled into a single framework. It is common to do so.

In conventional free access floors, each column and the reinforcing frame that connects each column are manufactured separately, and after the columns are attached to the floorboard, the reinforcing frame is assembled on-site to connect each column. It had been.

Therefore, it takes time and effort to bring the reinforcing frame materials to the site, and it is difficult to measure the dimensions accurately, so the overall stability of the floorboard is poor, and there are also problems in terms of strength, making it extremely difficult to work. There was a bad problem.

This idea solves the above-mentioned drawbacks and problems, and forms a unit column frame that integrally includes a column that supports the floorboard, a steel ball stored at the tip of this column, and a mounting bracket for the reinforcing frame, and this column frame. To provide a rolling unit for a free access floor that can be assembled by simply connecting the spaces with a straight beam.

This invention will be explained in detail below based on illustrated embodiments.

This idea consists of a column 1 that supports a free access floor 5, and a joint fitting 8 that is fixed to the lower end of this column 1.
a reinforcing cross-shaped arm 2 for fixing the support, a stainless steel 3 embedded in the tip end of the support column 1, a holder 9 provided at the lower edge of the reinforcing cross-shaped arm, and a steel ball housed in this holder 9. 4, and a free access floor--consisting of a pedestal 6 and an adjustment nut 7, which are fixed to the lower surface and adjust the suspension length of the main pillar 1.

The main pillar 1 is formed by providing a threaded portion on the outer peripheral wall of a part of the entire length or upper and lower ends of a cylindrical or circular solid beam.

In addition, stainless steel 3 is embedded in one end surface of this main pillar 1,
The contact surface with the steel ball 4 is formed to prevent rust and maintain sufficient strength against friction.

The cross-shaped arm 2 is formed by integrally forming a beam having a rectangular or square cross section into a cross shape, and has a through-screw part 10 screwed into the thread part of the main pillar 1 in the center of the cross shape, and protrudes in the cross shape. A through hole for a bolt for fixing a joint fitting 8 is provided near the tip of each arm, and a holder 9 capable of accommodating a steel ball 4 is further provided below.

The steel ball 4 is stored in this holder 9 so that it can freely rotate, and when the support 1 is fixed to the cross-shaped arm 2,
The stainless steel 3 of the main pillar 1 abuts the upper end of the steel ball 3, and the weight of the free access floor 5 is directly transmitted to the stainless steel 3 and the steel ball 4 through the pillar 1.

Thus, in the rolling unit according to the present invention, one end of the main column 1 is screwed and fixed to the screw hole 10 of the cross-shaped arm 2, the steel balls 4 are stored in the holder 9, and the other end of the main column 1 is fixed to the screw hole 10 of the cross-shaped arm 2. An adjustment nut 7 is screwed into the end portion, and the tip thereof is inserted into a cylindrical (τ-shaped) base 6. Next, the installation procedure of this rolling unit will be explained.

Place the pedestal 6 in place on the underside of the free access floor.
The mounting surface of is fixed, the support 1 is made into a suspended shape, and the steel ball 4 is brought into contact with the floor plate.

Install multiple rolling units to support the free access floor, adjust the adjustment nut 7 of each main column 1 to adjust the underfloor length, and furthermore, install each main column 1 to prevent vibrations. In order to prevent the arms from moving separately, each arm of the cross-shaped arm 2 is connected and fixed with a joint fitting 8.

A mounting nut 11 is used for this mounting.

The joint fitting 8 is formed of a channel-shaped straight beam,
All you have to do is connect it by placing it over the arm of the cross-shaped arm.
Its length should be at most 430 mm to 440 mm, making it easy to carry and easy to install.

Since this invention is constructed as claimed in the utility model registration based on the above-mentioned embodiment, the assembly work of the rolling unit floor can be done quickly and inexpensively, or the cross-shaped arm of the rolling unit can be All you have to do is let the arms you don't need rest and button them. You can not only form a rectangular frame but also a triangular frame, and the direction of the cross arms can be changed freely, so the free access floor looks like a whole. The main pillar 1 is placed on a single beam, and the movements are unified, making the whole unit unified and stable.The cross-shaped arm 2 has each arm extended, and the joint It is also possible to omit the use of the metal fittings 8 and directly connect the cross-shaped arms 2 to each other.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a side view of the rolling unit of the present invention, and FIG. 2 is an example of assembly using the product of the present invention. Explanation of symbols, 1... Support, 2... Cross-shaped arm, 3
...Stainless steel, 4...Steel ball, 5...Free...
Access floor - 16...Pedestal, 7...Adjustment nut, 8...Joint fitting, 9...Steel ball holder 10...Screw hole, 11...Mounting nut.

Claims (1)

[Scope of utility model registration request] Stainless steel 3 is embedded in the tip of the column 1, and is configured to maintain sufficient strength against friction with the steel ball 4.
It is configured so that the weight of the access floor 5 is directly transmitted to the stainless steel 3 and steel balls 4 through the support 1, and has a cross-shaped arm 2 on the lower part so that each unit can be connected. A holder 9 capable of accommodating a steel ball 4 is provided on the lower side, and a threaded hole 10 for fixing the column 1 is provided at the center of the holder 9, which is fixed by screwing a threaded portion provided on the outer periphery of the tip of the column 1. Structure of rolling unit used for free access floor.