JPH10325231A - Fixing method of bearing leg for free access floor panel to floor footing steel frame - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method to firmly fix a bearing leg for a free access floor panel to a floor footing steel frame. SOLUTION: A base plate 1 of a bearing leg B is mounted on a flange 6a of an I-type steel frame A constituting a footing floor. An overlapped edge side part of the flange 6a and base plate 1 is held with a U-shaped holding device C having a clamping bolt 5, the front end of the bolt is pushed in a state to bring it contact with the flange 6a on the upper side of the steel frame, and the base plate 1 and flange 6a are clamped with a holding plate section 4c of the holding device C and the front end of the bolt 5 to fix.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a method of fixing a support leg of a panel for a free access floor constituting a double floor to a floor foundation steel frame flange constituting a foundation floor.

[0002]

2. Description of the Related Art Conventionally, in a method of fixing the panel supporting leg to a steel frame flange constituting a foundation, a plurality of level adjusting bolts are threaded through a base plate constituting the supporting leg in a penetrating manner. A method is known in which the base plate is adjusted to a horizontal state on the steel frame flange by turning the bolts, and then the base plate is fixed to the flange side with an adhesive or welding (see Japanese Patent Application Laid-Open No. Hei 7-292942).

[0003]

In the method of fixing the base plate of the supporting leg on the floor foundation steel frame with an adhesive, the bonding surface is easily peeled off due to the vibration or deformation of the steel frame, and complete fixing is obtained. Hateful. On the other hand, according to the fixing method by welding, problems such as peeling do not occur, but a reduction in work efficiency is inevitable due to the necessity of welding equipment and complicated welding work.

The present invention solves the above-mentioned problems of the conventional supporting leg fixing method, and provides a supporting leg fixing method capable of firmly fixing the supporting legs to the floor foundation steel frame by simple means. Its main purpose is to:

[0005]

According to the present invention, there is provided a method of fixing a support leg of a panel for a free access floor to a floor foundation steel frame, wherein the base plate of the support leg is mounted on the floor foundation steel frame flange. The invention is characterized in that the overlapping edge portion of the flange and the base plate is clamped by a U-shaped clamp with a tightening bolt, and then the base plate and the steel frame flange are tightened and fixed by rotating the bolt.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As a preferred embodiment of the present invention, as shown in FIGS. 1 to 3, a base plate 1 of a support leg B is mounted on a flange 6a of an I-type floor foundation steel frame A,
The overlapping edge portion of the steel frame A and the base plate 1 is clamped by a U-shaped clamping tool C having a tightening bolt 5, and then the base plate 1 and the flange 6a are tightened and fixed by rotating the tightening bolt 5.

[0007]

1 to 3 show an embodiment of the present invention. In FIGS. 1 to 3, A is an I-type floor foundation steel frame constituting a foundation floor of a building, and B is a support leg of a panel for a free access floor placed on the steel frame. The support leg B includes a base plate 1, a screw post 2 erected on the base plate 1, and a panel mounting base 3 fitted to the tip of the screw post.

[0008] Reference numeral C denotes a U-shaped clamp with a fastening bolt for fixing the support leg B to the steel frame A. The holding member C is formed by pressing a metal plate material having a required thickness into a U-shape by using a side plate portion 4a and holding plate portions 4b and 4c bent in parallel from both ends of the side plate portion. The bolt 4b has a structure in which the bolt 5 is threaded from the outside to the inside in a penetrating manner.

Next, a method of fixing the support leg B to the I-shaped steel frame A on the foundation floor using the U-shaped clamping device with the fastening bolt will be described. First, an adhesive 7 is applied to the surface of the upper flange 6a of the I-shaped steel frame A on which the base plate 1 of the support leg B is mounted, and the base plate 1 of the support leg B is mounted on the coated portion of the adhesive 7. Next, after the overlapping edge portion of the placed base plate 1 and the flange 6a is clamped from both sides thereof by the parallel clamping plates 4b and 4c of the clamping device C, the tip of the bolt 5 is turned to the upper side. The base plate 1 and the flange 6a are pressed against the flange 6a, and the base plate 1 and the flange 6a are fastened and fixed by the holding portion 4c of the holding tool C and the tip of the bolt 5. Thereby, the base plate 1 is firmly held on the steel frame A via the holding tool C.
In addition, according to the construction method using an adhesive as in the above-described embodiment, the holding force of the holding tool C can be further enhanced.

In the conventional fixing method using an adhesive,
As described above, there is a possibility that the bonding surface may be peeled off due to vibration or deformation of the floor foundation steel frame. Further, in the conventional fixing method by welding, welding equipment is required and welding work is troublesome, but the fixing method of the present invention is to clamp the base plate to the steel frame by the clamping tool with the tightening bolt. Therefore, the fixing work is easy, and the work efficiency can be greatly improved.

In addition, in the method of fixing the support legs according to the present invention, no work is required on the floor foundation steel frame and the support legs, so that no extra work is required by the processing operation or the like.

[0012]

As described above in detail, according to the present invention, the support legs of the panel for the free access floor can be easily and firmly fixed on the floor foundation steel frame by simple means.

[Brief description of the drawings]

FIG. 1 is a structural view showing a means for fixing a support leg of a panel for a free access floor to a floor foundation steel frame according to the present invention.

FIG. 2 is a side view of a fixed component of a support leg.

FIG. 3 is an enlarged perspective view of a U-shaped holding tool with a fastening bolt.

[Explanation of symbols]

 Reference Signs List A Base steel frame of base floor B Support leg 1 Base plate 2 Screw post 3 Panel mounting base C U-shaped clamp with clamping bolt 4a Side plate 4b, 4c Clamping plate 5 Clamping bolt 6a, 6b Flange of steel frame 7 Adhesive

Claims (3)

[Claims] 1. A method of fixing a support leg of a panel for a free access floor on a floor foundation steel frame, comprising:
The base plate of the support leg is placed on the floor foundation steel frame flange, and the overlapping edge portion of the flange and the base plate is clamped by a U-shaped clamp with a tightening bolt. A method for fixing a supporting leg of a panel for a free access floor to a floor foundation steel frame, wherein the flange is fastened and fixed to a steel frame flange. 2. The supporting leg of a panel for a free access floor according to claim 1, wherein before mounting the base plate of the supporting leg on the floor foundation steel flange, an adhesive is applied to the mounting portion on the flange. Method of fixing to floor foundation steel frame. 3. A U-shaped clamping device with a tightening bolt,
A metal plate of the required thickness is press-formed into a U-shape with a side plate and a sandwich plate bent in parallel from both ends of this side plate, and a bolt is passed through one sandwich plate from the outside to the inside 3. The method for fixing a support leg of a panel for a free access floor to a floor foundation steel frame according to claim 1 or 2, wherein a holding tool screwed in a shape is used.