JPH02128057A - Supporter for floor panel - Google Patents

Abstract

PURPOSE:To exactly connect a stringer with fixed legs as well as make constructing work and maintenance easier by a method in which the side wall of a stringer receiving base is pressingly contacted with the upright part of a stringer, the projected part is fitted into the hole, and coupling claws are coupled. CONSTITUTION:Stringer receiving bases 8 are provided on the heads of fixed legs 4 erected on the basic floor 3, and stringers 15 are set between the bases 8 to support a floor panel 2. Side walls 8c are formed on the side edges of the bases 8 and pressingly contacted with the upright parts 15d of the strings 15. The projections 9 of the bases 8 are fitted into the holes of the projected edges 15b, and the coupling claws 10 of the walls 8c are connected with the upright parts 15d. Since the stringers 15 can be fixed to the bases 8 in a pressingly contact state, the setting direction and the interval between the fixed legs 4 can be kept exactly.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention provides a floor panel having a plurality of fixed legs erected on a reference floor surface and a stringer installed between the adjacent fixed legs. The present invention relates to a supporting device.

(Prior technology) A double floor in which a number of floor panels are laid above a reference floor surface such as a concrete floor, and a free space is secured between the floor panels and the reference floor surface 2 in which cables, ventilation ducts, etc. can be placed. Structures, namely raised floors, are known.

For raised floors among such free access floors, the fixed legs are 7 (an independent fixed leg that is separate from the 7 Abanel is used. When using independent fixed legs, first , the base portion of the lower end of the fixed leg is fixed to the reference floor surface, then a stringer is installed between the upper end portions of the fixed leg, and the end of the stringer is fixed to the stringer holder at the upper part of the fixed leg.

Conventionally, as this type of floor panel support device, one disclosed in, for example, Japanese Utility Model Publication No. 56-38110 is known. According to this support device, the stringers are arranged in a grid pattern between the upper ends of the fixed legs erected on the reference floor surface, and are assembled by being fixed to each fixed leg. At the upper end, stringer holders for accommodating the ends of the stringers are provided in a cross direction at 90° intervals, and upward protrusions are provided at the bottom of the stringer holders to accommodate holes formed in the stringers. is engaged with.

(Problem to be Solved by the Invention) However, in the above-mentioned floor panel support device, fastening means such as bolts and nuts are used to fix the ends of the stringers to the upper ends of the fixed legs. In addition to making the work complicated, there was a problem in that efficiency was low because bolts and the like had to be attached and detached during underground work such as wiring.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a floor panel support device in which a stringer is detachably fixed to the upper end of a fixed leg in a press-contact state, and also functions as a jig during construction.

(Means for Solving the Problems) In order to achieve the above object, the floor panel support device of the present invention includes a plurality of fixed legs erected on a reference floor surface, and a plurality of fixed legs installed between adjacent fixed legs. In the floor panel support device having a stringer, the stringer is formed with a main body portion having a U-shaped cross section with a downward opening, and a projecting edge portion having rising portions at both lower ends of the main body portion. and a stringer cradle provided at the head of the fixed leg with a side wall extending in the installation direction of the sl-IJ stringer, accommodating the end of the stringer, and coming into pressure contact with the rising part. forming protrusions and holes on the bottom of the stringer pedestal and the protruding edge of the stringer, which fit into each other when the stringer is installed; and on the side wall of the stringer holder, when the stringer is installed. a locking pawl that engages with a rising part of the projecting edge of the stringer to bring the projecting edge of the stringer into close contact with the bottom of the stringer holder; is removably engaged with the stringer pedestal of the adjacent fixed leg.

(Function) In the floor panel support device of the present invention having such a configuration, when the end of the stringer is inserted into the stringer cradle at the upper end of the fixed leg, the rising part of the projecting edge of the stringer will move against the stringer cradle. In pressure contact with the side wall;
The protrusion on the bottom of the stringer holder and the hole on the protruding edge of the stringer fit together to restrict the axial movement of the stringer. Further, the locking pawl on the side wall of the stringer holder engages with the rising part of the protruding edge of the stringer, so that the stringer is tightly attached to the bottom of the stringer holder and is prevented from coming off.

In this way, in the floor panel support device constructed by fitting the end of the stringer into the stringer holder of the fixed leg, the stringer is fixed to the stringer holder in a press-contact state, and its installation direction is accurately maintained. At the same time, the distance between adjacent fixed legs is maintained constant.

Therefore, the fixed legs are positioned by the stringers, and workability can be improved.

Furthermore, even when it is necessary to attach or detach the stringer due to changes in wiring or piping, etc., the stringer can be attached or detached with a single touch, thereby improving maintainability.

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

The free access floor 1 includes a floor panel support device 20 whose main components are fixed legs 4 erected on a reference floor surface 3 and stringers 15 installed between adjacent fixed legs 4.4. It is constructed by mounting and fixing a plurality of 70 Avanels 2.

The fixed leg 4 is constructed by erecting a cylindrical column leg 7 having a stringer holder 8 at its upper end at the center of the upper surface of a base portion 5 via a height adjustment mechanism 6. This stringer holder 8 has four grooves 8a for accommodating the ends of the stringer 15, and these grooves 8a are formed in a cross shape and protrude horizontally. This groove 8a has a bottom part 8b and a side wall 8.
The bottom part 8b is provided with two tapered protrusions 9 that fit into holes 13 formed in the protruding edge part 15b of the stringer 15, which will be described later. On the other hand, the side wall 8c is provided with a locking pawl lO that engages with the upper end of the rising portion 15d of the stringer 15.

Furthermore, a panel presser holder 12 with which a panel presser 11 engages is provided at the center of the stringer holder 8.

The stringer 15 is formed by bending into a channel material having a U-shaped transverse cross section, and has a main body portion 15a extending in the longitudinal direction formed in the center thereof. At the lower ends of both sides of the main body part 15a, the main body part 15
A projecting edge portion 15b having a horizontal portion 15c and a rising portion 15d that protrudes in the horizontal direction along the direction a is formed, and a hole 13 is provided in the horizontal portion 15c at each end.

Here, in the figure, 15e is a reinforcing rib for increasing rigidity so as to prevent buckling of the end of the stringer 15 caused by vertical loads acting on the stringer 15 and the floor panel 2, and 15h is a reinforcing rib for increasing the rigidity. 15f is a rib that guides the support member 16; 15f is a protrusion for producing elastic action on the protruding edge 15b; and 15g is a support receiving surface whose height dimension and flatness accuracy has been improved by pressing. are shown respectively.

Furthermore, support members 16 integrally molded from a suitable synthetic resin such as ABS resin are fitted into the main body portion 15a of the stringer 15 at predetermined intervals. This stringer-15 is
extending along the edge of the floor panel 2;
The peripheral edge of the bottom surface is supported by the engaging portion 16a of the support member 16. Then, the floor panel 2 is fixed to the support device 20 by tightening the step portions 2a at the four corners of the floor panel 2 with the panel pressers 11. In the figure, lla indicates a slide ring interposed between the panel holder 11 and the stepped portion 2a, and llb indicates a cap fitted to the panel holder 11.

Now, to explain in detail the engagement state between the stringer 15 and the stringer holder 8, the rising part 15d of the stringer 15 is connected to the stringer holder 8f) groove 8.
The groove 8a is engaged with the side wall 8c of the groove 8a in a pressure contact state.
Two protrusions 9 provided on the bottom 8b of the stringer 1
The holes 13 provided in the respective projecting edges 15b of 5 are fitted. Therefore, the stringer 15 is restricted from moving in the axial direction, and the installation direction is accurately maintained, and furthermore, the distance between adjacent fixed legs is kept constant.

Further, I; provided on the side wall 8c of the stringer holder 8;
The locking claw lO is connected to the rising portion 15d of the stringer 15.
is engaged with the upper end of the Due to this engagement, the stringer 15 is pressed downward, and the horizontal portion 1 of the projecting edge 15b
5c is closely attached to the bottom 8b of the stringer holder 8, and is prevented from coming off upwardly, and furthermore, the fitting between the projection 9 and the hole 13 described above is maintained reliably.

(Effects of the Invention) As explained above, according to the floor panel support device of the present invention, the end of the stringer is placed on the stringer holder at the upper end of the fixed leg, and the rising portion of the projecting edge of the stringer is placed on the stringer holder. It comes into pressure contact with the side wall of the stand, and the protrusion on the bottom of the stringer holder and the hole on the protruding edge of the stringer fit together, and the locking claw on the side wall of the stringer holder and the protruding edge of the stringer fit together. It is inserted in a state where it is engaged with the rising part of.

For this reason, the stringer is fixed to the stringer pedestal in a press-contact state, the direction of construction thereof is maintained accurately, and the distance between adjacent fixed legs is maintained constant.

Therefore, the fixed legs can be positioned using the stringers, and workability can be improved.

Further, even when it is necessary to attach or detach the stringer due to changes in wiring or piping, etc., it can be attached or detached with a single touch, thereby improving maintainability.

[Brief explanation of the drawing]

Figure 1 is an exploded perspective view showing how the stringer is attached to the fixed leg, Figure 2 is an enlarged exploded perspective view of the attached part, and Figure 3 is the upper end of the fixed leg when the floor panel is fixed. FIG. 3... Base, semi-floor surface, 4... Fixed leg, 8... Stringer holder, 8c... Side wall, 9... Protrusion, 10... Locking claw,... Hole, ...Stringer b...Protruding edge portion, d...Rising portion, ...Floor panel support device.

Claims (1)

[Claims] 1. In a floor panel support device comprising a plurality of fixed legs erected on a reference floor surface and stringers installed between the adjacent fixed legs, the stringers are provided with a downward direction. A main body portion having a U-shaped cross section having an opening is formed, and projecting edges having rising portions are provided at both lower ends of the main body portion, and projecting edges having rising portions are provided at the head of the fixed leg, extending in the direction in which the stringer is installed. , forming a stringer cradle that accommodates the end of the stringer and is provided with a side wall that comes into pressure contact with the rising part; and a bottom part of the stringer cradle and a flange of the stringer are fitted together when the stringer is installed. forming a mating protrusion and a hole on the side wall of the stringer pedestal, and engaging with a rising part of the projecting edge of the stringer when the stringer is installed, so that the projecting edge of the stringer is connected to the stringer pedestal; A floor panel characterized in that: a locking pawl is formed for tightly fitting the stringer to the bottom of the floor panel, and both ends of the stringer are removably engaged with the stringer cradle of the adjacent fixed leg. support device.