JPH0765391B2 - Floor panel support equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention provides a stringer installed between a plurality of fixed legs on a reference floor, and a floor panel is supported by a support member provided on the stringer. The present invention relates to a floor panel support device in which the floor panel and the stringer are fixed on a fixed leg by pressing.

(Prior art) A double floor with a large number of floor panels laid above a standard floor surface such as a concrete floor and a free space where cables and ventilation ducts can be placed between the floor panel and the standard floor surface. The structure, the free access floor, is known.

In the free access floor, in which the fixed leg and the floor panel are composed of independent members, a stringer is installed between the upper ends of the fixed legs fixed on the reference floor surface, and the floor panel is supported by the stringer. At the same time, a floor panel support device is used which is fixed on a fixed leg by a panel retainer.

(Problems to be Solved by the Invention) However, when tightening the panel support in the conventional floor panel support device, the floor panel is not tightly fixed on the fixed leg, and an unpleasant noise due to rattling occurs during walking. There is a problem that the panel holder is easily loosened or comes off due to vibration or the like.

Therefore, an object of the present invention is to provide a floor panel support device capable of accurately and firmly fixing a floor panel together with a stringer to a fixed leg.

(Means for Solving the Problems) In order to achieve the above object, a support device for a floor panel according to the present invention has a stringer installed between a plurality of fixed legs on a reference floor, and a support member provided on the stringer. In the support device of the floor panel, wherein the floor panel is supported by, and the floor panel and the stringer are fixed on a fixed leg by panel pressing, a main body having a U-shaped cross section having a downward opening in the stringer, And projecting edge portions that extend to the lower portions on both sides of the main body portion, and are formed so as to project upward from the main body portion with which the flange portions formed at the edges of the floor panel abut on the upper surface of the main body portion. A structural feature is that a support receiving surface is formed and a projecting portion is formed on the lower surface of the projecting edge portion so as to be in pressure contact with the stringer receiving base of the fixed leg.

(Operation) According to the floor panel supporting device of the present invention having such a configuration, since the support receiving surface projecting upward from the main body is formed on the upper surface of the end portion of the main body of the stringer, the flange of the floor panel is formed. Even if some unevenness is generated in the portion, both ends of each side of the flange portion are securely supported by the support receiving surface and do not float, and can be pressed and fixed by the panel retainer.

Then, with the tightening of the panel retainer, the protruding portion of the protruding edge portion of the stringer is pressed by the stringer cradle of the fixed leg,
The ridge of the stringer undergoes elastic deformation. At this time, the stringer has a spring effect acting upward as a whole, and firmly fixes the floor panel between the panel pressing member and the stringer in a pressure contact state.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings.

The free access floor 1 includes a plurality of floor panel support devices 20 each having a fixed leg 4 erected on the reference floor 3 and a stringer 11 installed between the adjacent fixed legs 4 and 4 as main components. It is configured by placing and fixing a number of floor panels 2.

As shown in FIG. 1, the fixed leg 4 is provided with a cylindrical column base 7 provided with a stringer pedestal 8 at the upper end thereof upright via a height adjusting mechanism 6 at the center of the upper surface of the base 5. Is configured. The stringer cradle 8 has four grooves 8a for accommodating the ends of the stringers 11, and these grooves 8a project horizontally in a cross shape. Then, projections 8b for locking are formed at the bottom of each groove 8a, and these projections 8b are fitted in holes 11e formed in the bottom surface of the end portion of the stringer 11, respectively, so as to extend in the axial direction of the stringer 11. Position, while groove 8a
A locking claw 8d is formed on the side wall 8c of the stringer, and engages with the projecting edge portion 11b of the stringer 11 to prevent the stringer 11 from coming off upward. In addition, a panel pressing receiver 10 with which a panel pressing member 9 is engaged is provided in the central portion of the stringer receiving base 8. The floor panel 2 is fixed to the support device 20 by pressing the four corners from above with the panel pressers 9 via the slide rings 9a. In addition, 2b in the figure shows a step portion with which the panel pressing member 9 is engaged.

A stringer 11 is provided between the upper ends of the fixed legs 4 so as to extend along the edge of the floor panel 2. This stringer 11 is formed as a channel material having a U-shaped lateral cross section by being bent, and a main body portion 11a extending in the longitudinal direction is formed at the center thereof.
Are formed. At both lower ends of the main body portion 11a, projecting edge portions 11b extending along the main body portion 11a are respectively bent and formed in the horizontal direction, and projecting portions 11c are formed at respective end portions of these projecting edge portions 11b. ing. Further, a support receiving surface 11d, which is in contact with the flange portion 2a of the floor panel 2, is provided at the upper end of the main body portion 11a so as to project therefrom. This stringer 11
In the case of the bending process, some deformation such as twisting and bending may occur in the molding of the main body 11a.
Since the flatness is not high, the end portion is further partially pressed into a predetermined size after the bending work to form a protrusion with the support receiving surface 11d. In the figure, 11f is a reinforcing rib for increasing rigidity so as to prevent a buckling phenomenon of the end portion of the stringer 11 caused by a vertical load acting on the stringer 11 and the floor panel 2, and 11g is a supporting rib of the support member 15. The ribs for guiding are shown respectively.

The support member 15 is integrally molded of a suitable synthetic resin such as ABC resin, and is fitted to the main body portion 11a of the stringer 11 and its lower end is brought into contact with the projecting edge portion 11b to be integrally formed at a predetermined position of the stringer 11. Attached to. Then, the engaging portion 15a of the support member 15 supports the peripheral edge portion of the bottom surface of the floor panel 2 at appropriate intervals, so that the flange portion 2a formed on the edge of the floor panel 2 does not receive a load. ing.

Now, when the floor panel 2 is placed on the support device 20 of the floor panel, the relationship between the support position of the support member 15 with the engaging portion 15a and the contact position with the support receiving surface 11d of the stringer 11 is accurately maintained. Therefore, the flange portion 2a of the floor panel 2 is already in surface contact with the support receiving surface 11d of the stringer 11 before tightening the panel retainer. Also, since the height dimension of the support receiving surface 11d of the stringer 11 is high, when the step 2b of the floor panel 2 is pressed by the panel retainer 9 via the slide ring 9a, the panel retainer 9 is attached accurately. To be

Further, the protruding portion 11c formed on the protruding edge portion 11b of the stringer 11 is pressed against the panel pedestal 8 as the panel retainer 9 is tightened, and elastically deforms the protruding edge portion 11b. As shown in FIGS. 3 and 5, since the elastically deformed projecting edge portion 11b of the stringer 11 engages the floor panel 2 in a pressure contact state by the spring action, the floor panel 2 is connected to the panel retainer 9 and the stringer 11. Is firmly fixed between. Therefore, the floor panel 2 is loose when walking,
It is possible to prevent an unpleasant sound or the like from being generated. Also, this spring action has the same effect as a spring washer, and the panel pressing member 9 maintains a constant tightening force,
It can be prevented from loosening or coming off due to vibration or the like.

(Effects of the Invention) As described above, according to the floor panel support device of the present invention, since the support receiving surface projecting above the main body is formed on the upper surface of the end of the main body of the stringer, the floor panel is supported. Even if the flange portion has some irregularities, both ends of each side of the flange portion are securely supported by the support receiving surfaces and do not float up, and can be pressed and fixed by the panel retainer.

In addition, the floor panel is firmly fixed in pressure contact between the panel retainer and the stringer by the spring action due to the elastic deformation of the projecting edge portion of the stringer accompanying the tightening of the panel retainer. Therefore, it is possible to prevent the floor panel from rattling when walking, and it is possible to suppress the generation of unpleasant noise due to the collision between the floor panel and the stringer. Further, this spring action has the same effect as the spring washer, and the panel pressing member can maintain a constant tightening force and can be prevented from loosening and coming off due to vibration or the like.

[Brief description of drawings]

FIG. 1 is a partial perspective view of a free access floor equipped with a floor panel support device of the present invention, FIG. 2 is an exploded perspective view showing a stringer and a stringer cradle, and FIG. 3 is a top view of a fixed leg. FIG. 4 is an assembled sectional view, FIG. 4 is a perspective view of the end portion of the stringer, FIG. 5 is a schematic view showing the spring action of the stringer, and FIG. 6 is a perspective view showing the back surface of the floor panel and the stringer. is there. 2: Floor panel, 2a: Flange part 3: Reference floor surface, 4: Fixed leg 11: Stringer, 11a: Main part 11b: Projection edge, 11c: Projection part 11d: Support receiving surface, 20: Floor panel support device

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tatsuo Shoji 39 Shinmachi, Yashio-shi, Saitama Prefecture Tokyo Institute of Technology, Tokyo Research Laboratory (72) Inventor Tetsuo Tobikawa 39 Shinmachi, Yashio-shi, Saitama Prefecture Laboratory Tokyo Laboratory

Claims (1)

[Claims] 1. A stringer is installed between a plurality of fixed legs on a reference floor surface, a floor panel is supported by a support member provided on the stringer, and the floor panel and the stringer are fixed on the fixed leg by panel pressing. In the support device for the floor panel fixed to the main body, the stringer is formed with a main body having a U-shaped cross section having a downward opening, and projecting edge portions extending to lower portions on both sides of the main body. A support receiving surface is formed on the upper surface of the fixed panel so as to project upward from the main body portion with which the flange portion formed on the edge of the floor panel abuts, and the stringer receiving portion of the fixed leg is formed on the lower surface of the projecting edge portion. A support device for a floor panel, characterized in that a protruding portion is formed in pressure contact with the base.