JPH0355702Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention is a prefabricated flooring material, in particular a prefabricated flooring material that can form a temporary floor by closely connecting and fixing multiple floorboards on the same plane. Regarding.

(Prior Art) With the advancement of office automation, the chances of installing a large number of office equipment and communication equipment in an office are increasing. For this purpose, wiring and piping must be laid on the floor. In order to make this installation work easier, a temporary floor is constructed with a suitable space above the floor. Conventionally, such a temporary floor is constructed such that a runner made of a positioning sheet or the like is combined with pillars and placed on the floor, floorboards are placed on the pillars, and each floorboard is fixed with fixing fasteners. With such conventional prefabricated flooring, the position of the pillars may be shifted from the intended upper level of the floor due to the product tolerances of the runners or the quality of the construction. It cannot be done.

For this reason, it has been considered to engage the tops of bolts that are screwed to the floor to fix the floorboard so that the height of the floorboard can be adjusted by rotating the bolts. However, when fixing the floorboards with bolts, there is a risk that the bolts will rotate due to vibrations caused by walking on the floorboards, and the height of the floorboards will change. In order to eliminate such drawbacks, a method has been considered in which the threaded portions of the bolts are filled with adhesive and fixed after the height of the floorboard is adjusted. With this method, when replacing the floorboards due to damage or the like, it is not possible to adjust height changes due to differences in board thickness, and it is not possible to construct the floorboards on the same plane without irregularities in height.

Another possible method is to tighten and fix the bolts from the sides with lock bolts after adjusting the height of the floor plate, but there is a risk that the lock bolts themselves may loosen due to the vibration of the floor plate, so the bolts cannot be securely fixed.

(Problems to be solved by the invention) This invention solves the above-mentioned problems.
The purpose is to provide a prefabricated flooring material that can securely fix the bolts that support the floorboards. Another object of the present invention is to provide a prefabricated flooring material that allows the height of the floorboard to be easily adjusted at any time.

(Means for Solving the Problems) The prefabricated flooring of the present invention includes: a floor plate forming a temporary floor on the floor; an engaging hole provided at least at each corner of the floor plate; a bolt with a flange that is screwed into the nut member; and a push spring fitted externally between the flange of the bolt and the nut member, and the engagement hole of the floor plate is connected to the flange of the bolt with the flange. The above object is achieved by engaging the upper side.

(Example) The present invention will be described below with reference to embodiments.

As shown in Figure 1, the prefabricated flooring of the present invention has the following features:
It has a plurality of floorboards 1 and a support body 2 for supporting the floorboards 1 in close contact with each other on the floor 101.
As shown in FIGS. 2 and 3a and 3b, the support body 2 includes a nut member 21, a flanged bolt 22 that engages with the nut member 21, and a collar portion 2 of the nut member 21.
11 and a flange portion 221 of the flange bolt 22. The nut member 21 is fixed on the floor 101. An engagement hole 10 is provided at the corner of the floor plate 1, and a collar portion 221
It is placed on top and engaged with the head of the flanged bolt 22 through the engagement hole 10. bolt 22
A thread groove 222 is formed at the top end of the
By rotating the bolt 22, the bolt 22
itself moves relative to the nut member 21, and the floor 101
The height position of the flange portion 221 relative to the flange portion 221 is changed.
The push spring 23 presses the collar portion 221 upward, thereby urging the bolt 22 as a whole upward, so that the floor plate 1
absorbs vibrations, etc. As a result, loosening of the bolt 22 is prevented.

The push spring 23 is preferably made of metal in terms of strength, durability, and the like. For example, when piano wire is used, it is desirable that its diameter be 0.5 to 2.0 mm for ease of height adjustment and secure fixation.

Connect the engagement hole 10 of the floor plate 1 to the collar 22 of the bolt 22.
By rotating the bolt 22 while fitted on the upper side of the floor plate 1, the floor plate 1 is moved up and down to absorb unevenness of the floor surface. In this way, each floorboard 1 is closely connected and arranged on the same plane to form a temporary floor 100. This temporary floor 100 is like the original floor 101.
It is constructed on the floor 101 with a suitable space.

(Effects of the invention) The prefabricated flooring of the present invention has a compression spring fitted between the collar of the bolt and the nut member fixed on the floor to constantly press the bolt upward. This ensures that the bolt does not turn. Therefore, there is no risk of the bolts rotating due to vibrations of the floorboard, and the temporary floor is always kept at a constant height. Since the bolts can be easily rotated, the height of the floorboard can be easily adjusted at any time.

[Brief explanation of the drawing]

Fig. 1 is a partial perspective view showing an example of a temporary floor 100 formed using the prefabricated flooring material of the present invention, Fig. 2 is a perspective view showing an example of a support 2, and Figs. 3 a and b.
1 is a plan view and a sectional view showing an example of an engaged state between a floor plate 1 and a support body 2. FIG. DESCRIPTION OF SYMBOLS 1... Floor plate, 2... Support body, 21... Nut member, 22... Bolt, 23... Pressing spring, 221...
...Brim, 101...Floor.

Claims (1)

[Scope of utility model registration request] A floor plate that forms a temporary floor on the floor; an engagement hole provided at least at each corner of the floor plate; a bolt with a flange that screws into a nut member fixed to the floor; a flange of the bolt and the nut. and a push spring externally fitted between the members, and the engagement hole of the floor plate engages with the upper side of the flange of the flange bolt.