JPH1181638A - Fixing construction of supporting leg for floor board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide fixing construction of a supporting leg to an H-section steel having sufficient fixed strength, capability of shortening the construction period and easily changing the position of the supporting leg, without possibility causing chemical reaction. SOLUTION: A supporting leg 2 for a floor board 4 is placed on an upper flange 1a of an H-section steel 1 composed of the upper flange 1a, a web 1b and a lower flange 1c. A fixing metal fitting 6 of an U-shape section composed of an upper plate 6a, a lateral plate 6b and a lower plate 6c is respectively arranged on both sides of the web 1b so that the upper plate 6c may face the top surface of a base plate 2a of the supporting leg 2 and the lower plate 6c may face the lower surface of the upper flange 1a and the supporting leg 2 and the H-section steel 1 are fixed together by forming an internal thread on the upper plate of the fixing metal fitting and inserting a bolt 7 into it.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing structure of a support leg for a floor plate, and more particularly to a fixing structure for fixing a support leg to an H-section steel.

[0002]

2. Description of the Related Art In an office floor or the like, a support leg is fixed on a floor slab, and a floor plate is spread on the support leg to form a free access floor. However, in a clean room or the like, since it is necessary to secure a wide space as a space under the floor plate, an H-shaped steel is hung over the structure, and the support legs are fixed on the H-shaped steel to constitute a free access floor. . At this time, an adhesive is generally used as a method of fixing the support legs and the H-shaped steel, and a technique of fixing the support legs and the H-shaped steel by welding is also used.

[0003]

The above-mentioned conventional supporting leg and H
Among the fixing methods for the section steel, the fixing method using an adhesive has a problem that the reliability regarding the fixing strength is not always sufficiently high. In addition, it is necessary to secure a curing period until the adhesive is solidified, that is, it is not possible to proceed to the next step until the adhesive is completely dried, and it is not possible to shorten the construction period. is there. Also,
Once the support legs are bonded, there is a problem that the position of the support legs cannot be easily changed. Furthermore, there is a risk of spilling solvents, especially in clean rooms, etc.
At this time, a gas which is not preferable for the clean room may be generated due to a chemical reaction between the solvent and the adhesive.

On the other hand, according to welding, a sufficient fixing strength can be ensured, a curing period is not required, and there is no possibility that any problem will be caused when a solvent is spilled. However, welding a large number of support legs itself leads to a prolonged construction period, and it is not easy to secure workers themselves, especially due to the recent shortage of welders. Further, there is a problem that the position of the support leg cannot be easily changed once the support leg is welded. Therefore, the present invention provides a support leg and an H-shaped steel having sufficient fixing strength, capable of shortening the construction period, easily changing the position of the support leg, and having no risk of causing a chemical reaction. An object of the present invention is to provide a fixing structure with the above.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, that is, a support leg of a floor plate is provided on an upper surface of an upper flange of an H-shaped steel comprising an upper flange, a web and a lower flange. Is mounted, and a U-shaped fixing bracket consisting of an upper plate, a side plate, and a lower plate is mounted.The upper plate faces the upper surface of the base plate of the support leg, and the lower plate is positioned on the lower surface of the upper flange. The support legs and the H-shaped steel were fixed by disposing the female screws on both sides of the web so as to face each other, forming a female screw on the upper plate of the fixing bracket, and screwing a bolt into the female screw. This is a fixing structure for supporting legs of the floorboard.

The present invention also provides a column and a base plate fixed to the lower end of the column and extending in the front, rear, right and left directions on the upper surface of an upper flange of an H-shaped steel formed of an upper flange, a web, and a lower flange. Place the supporting legs of the floor plate having, and provide upper metal fittings before and after the support column, place the upper metal fitting on the upper surface of the base plate, and project both left and right ends of both upper metal fittings outward from both sides of the upper flange. , On both sides of the web, a lower metal fitting facing the lower surface of the upper flange and protruding outward from the side surface of the upper flange is arranged, respectively.
By bolting the upper bracket and the lower bracket at a portion protruding outward from the side surface of the upper flange, the support leg and the H
This is a structure for fixing the support legs of the floorboard to which the section steel is fixed.

[0007]

Embodiments of the present invention will be described.
1 to 3 show a first embodiment of a fixing structure of a support leg of a floorboard according to the present invention. The H-shaped steel 1 composed of the upper flange 1a, the web 1b, and the lower flange 1c is arranged so that the upper flange 1a faces in the horizontal direction, and the support leg 2 is placed on the upper surface of the upper flange 1a. I have. The support leg 2 has a base plate 2a, and a column 2b is erected on the base plate 2a. A male screw is engraved on the support 2b, and a nut 2c and a receiving base 2d are screwed into the male screw. A lock bolt is screwed into each of the nut 2c and the pedestal 2d, and after adjusting the height of the nut 2c, the position of the nut 2c and the pedestal 2d can be fixed in that state. A receiving plate 2e is provided on the receiving base 2d, and four positioning protrusions 2f are protruded from the receiving plate 2e. The floor plate 4 is placed on the receiving plate 2e via the cushioning material 3, and the positioning protrusion 2f of the support leg is fitted into the concave portion formed on the lower surface of the floor plate 4 so that the floor plate 4 does not shift. Is configured. For example, a carpet 5 is laid on the upper surface of the floorboard 4.

[0008] The support leg 2 and the H-section steel 1 are fixed by a fixing bracket 6. The fixing bracket 6 is formed in a U-shaped cross section by an upper plate portion 6a, a side plate portion 6b, and a lower plate portion 6c, and two female threads are formed on the upper plate portion 6a. The upper metal plate 6a faces the upper surface of the base plate 2a of the support leg, and the lower metal plate 6c
The web 1b is disposed on the right and left sides of the web 1b so as to face the lower surface of the web 1a. After that, when the bolt 7 is screwed into the female screw of the upper plate portion 6a, the tip of the bolt 7 contacts the upper surface of the upper flange 1a.
The upper plate 6a of the fixing bracket is lifted upward, so that the lower plate 6c is pressed against the lower surface of the upper flange 1a, and thus the support leg 2 and the H-shaped steel 1 are firmly fixed.

As described above, in this embodiment, since the support leg 2 and the H-shaped steel 1 are fixed by mechanical means, they have sufficient fixing strength, and even if a solvent or the like is spilled, a chemical reaction occurs. There is no possibility of causing. Moreover, since a skilled worker such as a welder is not required, and a curing period is not required, the working period can be shortened. Bolt 7
, The position of the support leg 2 can be adjusted, so that the position of the floor plate 4 can be easily finely adjusted.

Next, FIGS. 4 to 6 show a second embodiment of the present invention. In the first embodiment, it is not possible to say that there is no possibility that the fixing bracket 6 may fall off to the side due to the loosening of the bolt 7. In the second embodiment, two upper fittings 8a,
8b and two lower metal fittings 9a and 9b, so that there is no possibility of such falling off. Assuming that the longitudinal direction of the H-section steel is the front-rear direction and the width direction is the left-right direction, the upper metal fittings 8a and 8b
The front upper metal member 8a is provided on the front upper surface of the base plate 2a, and the rear upper metal member 8b is mounted on the rear upper surface of the base plate 2a. The left and right ends of both upper fittings 8a, 8b protrude leftward and rightward from both sides of the upper flange 1a. On the other hand,
The lower metal fittings 9a and 9b are provided one each on the left and right sides of the web 1b, and are arranged to face the lower surface of the upper flange 1a. The left end of the left lower metal fitting 9a or the right end of the right lower metal fitting 9b is bent upward after projecting leftward or rightward from the side surface of the upper flange 1a, and the upper end thereof is connected to the front upper metal fitting 8a and the rear side. It is in contact with both upper fittings 8b.

Upper metal fittings 8a and 8b and lower metal fittings 9a and 9b
Among them, portions projecting outward from the side surfaces of the upper flange 1a are fastened to each other by bolts 7. That is, the bolt 7 is used for fastening the front upper bracket 8a and the left lower bracket 9a, fastening the front upper bracket 8a and the right lower bracket 9b, fastening the rear upper bracket 8b and the left lower bracket 9a, and the rear upper bracket 8b and the right. For fastening the lower metal fittings 9b, four are provided for convenience. By tightening the bolts 7 in this manner, the base plate 2a of the supporting leg and the upper flange 1a of the H-shaped steel are connected to the upper fittings 8a and 8b and the lower fittings 9a and 9a.
9b. At this time, in this embodiment,
Even if the bolt 7 is loosened, the upper fittings 8a and 8b and the lower fittings 9a and 9b cannot be dropped, and therefore, it can be said that the reliability is higher than the fixing structure of the first embodiment. In this embodiment, two upper fittings 8a and 8b are used,
The left or right ends of the upper fittings 8a and 8b may be combined to form one upper fitting having a U-shaped planar shape.

[0012]

According to the present invention, sufficient fixing strength can be obtained, the construction period can be shortened, the position of the supporting leg can be easily changed, and there is no possibility of causing a chemical reaction. A fixing structure between the support legs and the H-section steel is obtained.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing a first embodiment of the present invention.

FIG. 2 is a front view showing the first embodiment.

FIG. 3 is a plan view showing a state in which the floorboard of the first embodiment is removed.

FIG. 1 is a side sectional view showing a second embodiment.

FIG. 2 is a front view showing a second embodiment.

FIG. 3 is a partial sectional plan view showing a second embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... H-shaped steel 1a ... Upper flange 1b ... Web 1c ... Lower flange 2 ... Support leg 2a ... Base plate 2b ... Column 2c ... Nut 2d ... Cradle 2e ... Receiving plate 2f ... Positioning protrusion 3 ... Buffer material 4 ... Floor plate 5 ... Carpet 6: Fixture 6a: Upper plate 6b: Side plate 6c: Lower plate 7: Bolt 8a, 8b: Upper metal 9a, 9b: Lower metal

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[Procedure amendment]

[Submission date] November 13, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Brief description of drawings

[Correction method] Change

[Correction contents]

[Brief description of the drawings]

FIG. 1 is a side sectional view showing a first embodiment of the present invention.

FIG. 2 is a front view showing the first embodiment.

FIG. 3 is a plan view showing a state in which the floorboard of the first embodiment is removed.

FIG. 4 is a side sectional view showing a second embodiment.

FIG. 5 is a front view showing a second embodiment.

FIG. 6 is a partial sectional plan view showing a second embodiment.

[Description of Signs] 1 ... H-section steel 1a ... Upper flange 1b ... Web 1c ... Lower flange 2 ... Support leg 2a ... Base plate 2b ... Post 2c ... Nut 2d ... Receiver stand 2e ... Receiving plate 2f ... Positioning protrusion 3 ... Cushion material DESCRIPTION OF SYMBOLS 4 ... Floor board 5 ... Carpet 6 ... Fixing bracket 6a ... Upper plate 6b ... Side plate 6c ... Lower plate 7 ... Bolt 8a, 8b ... Upper metal 9a, 9b ... Lower metal

Claims (2)

[Claims] An H-shaped steel comprising an upper flange, a web and a lower flange, a support leg of a floor plate is placed on the upper surface of the upper flange, and a U-shaped cross section comprising an upper plate portion, a side plate portion and a lower plate portion. A fixing metal fitting is disposed on each side of the web such that the upper plate portion faces the upper surface of the base plate of the support leg, and the lower plate portion faces the lower surface of the upper flange, respectively. A fixing structure for a supporting leg of a floor plate, wherein the supporting leg and the H-shaped steel are fixed by forming a female screw in the upper plate portion and screwing a bolt into the female screw. 2. An upper surface of the upper flange of an H-section steel, which comprises an upper flange, a web and a lower flange and extends in the front-rear direction,
A support leg of a floor plate having a support and a base plate fixed to the lower end of the support and extending in the front-rear and left-right directions is placed, and upper metal fittings are provided before and after the support, and the upper metal is mounted on the upper surface of the base plate. And, the left and right ends of both upper metal fittings are projected outward from both sides of the upper flange, and the lower part on both sides of the web facing the lower surface of the upper flange and projecting outward from the side surface of the upper flange. A floor plate support leg in which the support leg and the H-section steel are fixed by arranging metal fittings and bolting the upper metal part and the lower metal part of a portion protruding outward from the side surface of the upper flange. Fixed structure.