JP2001152651A - Free-access floor structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a free-access floor structure which prevents floating of a free access floor panel and an adjusting stage member, to thereby enhance reliability thereof. SOLUTION: This free-access floor structure is provided with a free access floor panel 14 and a panel support member 32 which supports the same. The panel support member 32 has an adjusting stage member 24 and a support leg member. The adjusting stage member 24 includes a mounting stage 26, having a corner portion of the free access floor panel 14 mounted thereon and a cylindrical portion 28, arranged under the mounting stage 26. The support leg member is erected rigidity on a concrete floor surface 10 of a building structure, to thereby support the adjusting stage member 24 at its upper end so as to adjust the height of the adjustable stage member 24. Furthermore, an annular groove portion 40a is formed in a screw rod member 40 of the support leg member in the shaft rotating direction, and a screw hole 28a is formed in the cylindrical portion 28 of the adjusting stage member 24, into which a male screw member is screw-fitted with its front end being engaged with the groove portion 40a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a free access floor structure which forms a double floor structure above a concrete floor of a building structure with a space therebetween.

[0002]

2. Description of the Related Art Recently, various information devices such as personal computers, word processors, copiers, and printers, and a number of related devices have often been installed in rooms used in offices and the like of buildings. . In such a case, in order to prevent the various wiring and equipment connected to those devices from being left on the floor of the office or the like and becoming cluttered, place a space above the concrete floor of the building structure. There is an increasing number of cases where a free access floor structure that can store the above various wirings and equipment in the space between the floor surface of the office etc. and the concrete floor surface is formed by forming a double floor structure separated by ing.

As a conventional free access floor structure, for example, there is one as shown in FIGS. In the free access floor structure shown in FIG. 1, a plurality of panel support members 12 are erected and fixed on a concrete floor 10 of a building structure, and a plurality of free access floor panels 14 are mounted on the panel support members 12. Are placed and supported.

As shown in FIG. 5, a panel supporting member 12 is provided with a small disk-shaped supporting plate on the upper end of a cylindrical base leg 16 fixed on a concrete floor 10 by screws or the like. The lower end of the threaded rod member 20 is fixed on the support plate 18 by welding M so as to be coaxial with the base leg 16.

A support nut 22 is screwed in the middle of the height of the screw rod member 20.
Is formed with a screw hole 22a. This screw hole 22a
The support nut 22 is non-rotatably fixed to the screw rod member 20 by screwing the male screw member to the screw rod member 20 and fastening the male screw member so that the tip of the male screw member contacts the screw rod member 20. These foundation legs 1
6, the screw rod member 20, the support nut 22, and the male screw member constitute a support leg member as a whole.

[0006] The support nut 2 fixed as described above
The lower end of the cylindrical portion 28 of the adjustment base member 24 abuts on the top 2 to support the adjustment base member 24. Adjustment base member 24
Has a mounting table 26 on which the corner of the free access floor panel 14 is mounted, and the screw bar 2
0 has a cylindrical portion 28 fitted to the upper end.

A screw hole 28a is formed at the lower end of the cylindrical portion 28 of the adjusting base member 24. This screw hole 28a
The adjusting base member 24 is fixed to the screw rod member 20 by screwing the male screw member to the screw rod member 20 and tightening the distal end of the male screw member so as to abut the screw rod member 20.

Such a conventional free access floor structure has a supporting force by screw connection between the screw rod member 20 and the support nut 22, and a screw rod member 20 at the tip end by tightening a male screw member screwed into the screw hole 22a. And the sum of the pressing force on the threaded rod member 20 at the tip due to the tightening of the male screw member screw-connected to the screw hole 28a, from above the free access floor panel 14 via the adjusting base member 24. It is designed to support gravity and impact.

[0009]

However, in such a conventional free access floor structure, the distal end face of the male screw member screwed into the screw hole 28a and the thread of the screw rod member 20 are tightened. Is a line contact, so that the pressing force between the screw rod member 20 and the distal end surface of the male screw member cannot be made too large.

For this reason, the free access floor panel 1
4 applies a lateral force or a force that pushes upward from the bottom, or an impact force is applied to the free access floor panel 14 from the top to the bottom, causing the free access floor panel 14 to move up and down. In such a case, the free access floor panel 14 rises. For example, when the impact force when the equipment falls over due to an earthquake or the like is applied to the free access floor panel 14, the free access floor panel 14 vibrates up and down, or is inclined or deformed with respect to the horizontal, and excessively. The free access floor panel 14 rises.

At this time, since the free access floor panel 14 is screwed to the mounting table 26 of the adjustment base member 24 of the panel support member 12, the force applied to the adjustment base member 24 via the free access floor panel 14 is reduced. As a result, the adjustment base member 24 rises together with the free access floor panel 14 by overcoming the pressing force between the distal end surface of the male screw member and the thread of the screw bar member 20. For this reason, it is not possible to prevent the free access floor panel 14 from rising, and there is a problem that the reliability may be reduced in terms of the rigidity and stability of the entire free access floor structure.

In view of the above problems, the present invention provides a free access floor structure capable of preventing the free access floor panel and the adjusting base member from rising and improving the reliability of the free access floor structure. That is the task.

[0013]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a free access floor structure including a free access floor panel and a panel supporting member for supporting the same, wherein the panel supporting member comprises: An adjustment base member having a tubular portion below a mounting table on which the corner of the free access floor panel is mounted, and a height adjustment of the adjustment base member at the upper end fixed to the building structure floor and fixed at the upper end. A support leg member for supporting, and an endless groove portion is formed in the support leg member in the direction around the axis, and a male screw member having a tip portion engaged with the groove portion in the cylindrical portion of the adjustment base member. A screw hole for screw connection is formed.

According to the free access floor structure having such a configuration, an endless groove is formed in the support leg member in the direction around the axis, and the distal end is engaged with the cylindrical portion of the adjustment base member. Since a screw hole is formed in which the male screw member to be screw-connected is formed, the tip of the male screw member screw-connected to this screw hole engages with the groove, and this engagement cannot be easily disengaged. Can be prevented from floating together with the free access floor panel. For this reason, it is possible to prevent the free access floor panel and the adjustment base member from being lifted, and to improve the reliability of the free access floor structure.

[0015]

Embodiments of the present invention will be specifically described below with reference to the drawings. 1 to 3
FIG. 1 is a diagram referred to for describing an embodiment of a free access floor structure of the present invention.

In the free access floor structure according to one embodiment of the present invention shown in FIG. 1, a plurality of panel supporting members 32 are fixed upright on a concrete floor surface 10 (building structure floor) of a building structure. The corners of the plurality of free access floor panels 14 are placed and supported on the panel support member 32.

As shown in FIG. 3, the panel support member 32 has an axis extending vertically at the upper end of a cylindrical foundation leg 36 fixed on the concrete floor 10 by screws or the like. A support plate 38 in which a screw hole 38a is formed is fixed.

As shown in FIG. 2, the lower end of the screw rod member 40 is screwed into the screw hole 38a of the support plate 38, and the support plate 38 of the screw rod member 40 has a support above the support plate 38 in the figure. A lock nut 42 that restricts the rotation of the screw rod member 40 and restricts the vertical movement thereof by being fastened so as to be in close contact with the plate 38 is screwed.

As shown in FIG. 2, a support nut 44 is screwed to the upper end of the threaded rod member 40, and the lower end of the cylindrical portion 28 of the adjustment base member 24 is placed on the support nut 44. The adjustment base member 24 is supported in contact therewith. The base leg 36, the screw rod member 40, the lock nut 42, and the support nut 44 constitute a support leg member as a whole.

As shown in FIG. 3, the adjusting base member 24 has a mounting base 26 on which the corner of the free access floor panel 14 is mounted, and is fitted to the upper end of the screw rod member 20 thereunder. And has a cylindrical portion 28.

A screw hole 28a is formed at the lower end of the cylindrical portion 28 of the adjusting base member 24. This screw hole 28a
The adjusting base member 24 is fixed to the screw rod member 20 by connecting a male screw member (not shown) to the screw rod member 20 and fastening the distal end thereof to the screw rod member 20.

As shown in FIG. 3, an annular (endless) groove 40a is formed above the support nut 44 of the screw rod member 40 in a direction around the axis of the screw rod member 40 (circumferential direction). As shown in FIG. 2, when the lower end of the cylindrical portion 28 of the adjustment base member 24 is in contact with the support nut 44, the tip of the male screw member that is screwed into the screw hole 28a is attached to the groove 4
0a.

When adjusting the height of the mounting table 26 of the adjustment table member 24 of the panel support member 32, the lock nut 42 and the support nut 44 are loosened in FIG. By rotating the screw bar member 40 up and down, the height of the mounting table 26 can be adjusted.

At this time, the male screw member which is screwed into the screw hole 28a is also loosened slightly, and the tip end portion slides in the circumferential direction along the groove portion 40a, so that the screw rod member 40 is formed.
The rotation of the adjustment base member 24 can be prevented by allowing only the rotation of the adjustment base member 24. When the height adjustment of the mounting table 26 of the adjustment table member 24 is completed, the lock nut 42, the support nut 44,
By tightening a male screw member screw-coupled to the screw hole 28a, the vertical movement of the mounting table 26 and the screw rod member 40 is restricted.

According to the free access floor structure according to the embodiment of the present invention, an annular groove 40a is formed in the upper end portion of the threaded rod member 40 of the support leg member in the direction around the axis, and the adjusting table is formed. At the lower end of the cylindrical portion 28 of the member 24, there is formed a screw hole 28a into which a male screw member whose leading end is engaged with the groove 40a is screwed.
The tip of the male screw member screwed to 8a is a groove 40a.
And the engagement cannot be easily disengaged, so that it is possible to prevent the adjustment base member 24 from floating together with the free access floor panel 14. Therefore, it is possible to prevent the free access floor panel 14 and the adjustment base member 24 from being lifted, and to improve the reliability of the free access floor structure.

Although the embodiments of the present invention have been specifically described above, the present invention is not limited to the above-described embodiments, and based on the technical idea of the present invention, various other various embodiments are possible. It can be changed. For example, what is formed at the upper end in the above embodiment need not necessarily be limited to the upper end, and similarly, what is formed at the lower end need not necessarily be limited to the lower end.

[0027]

As described above, according to the present invention,
An endless groove is formed in the support leg member in the direction around the axis, and a screw hole is formed in the cylindrical portion of the adjustment base member, into which a male screw member having a distal end engaged with the groove is screwed. The distal end of the male screw member screwed into the screw hole engages with the groove, and this engagement cannot be easily disengaged. Therefore, it is possible to prevent the adjustment base member from floating together with the free access floor panel. For this reason, it is possible to prevent the free access floor panel and the adjustment base member from being lifted, and to improve the reliability of the free access floor structure.

[Brief description of the drawings]

FIG. 1 is a side view showing a free access floor structure according to an embodiment of the present invention.

FIG. 2 is an enlarged partial cross-sectional side view of the panel support member of FIG.

FIG. 3 is an exploded view of the panel support member of FIG. 2;

FIG. 4 is a side view showing a conventional free access floor structure.

FIG. 5 is an exploded view of the panel support member of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Concrete floor surface 12 Panel support member 14 Free access floor panel 16 Foundation leg 18 Support plate 20 Screw bar member 22 Support nut 22a Screw hole 24 Adjustment base member 26 Mounting table 28 Cylindrical part 28a Screw hole 32 Panel support member 36 Foundation Leg 38 Support plate 38a Screw hole 40 Screw rod member 40a Groove 42 Lock nut 44 Support nut

Claims (2)

[Claims] 1. A free access floor structure comprising a free access floor panel and a panel support member for supporting the same, wherein the panel support member mounts a corner of the free access floor panel thereon. An adjusting base member having a cylindrical portion below the supporting base member; and a supporting leg member which is fixed upright on the floor of the building structure and which supports the adjusting base member at an upper end so as to be adjustable in height. An endless groove is formed in the direction around the axis, and a screw hole is formed in the cylindrical portion of the adjusting base member, into which a male screw member having a distal end engaged with the groove is screwed. Access floor structure. 2. A base leg in which a screw hole having an axis extending vertically in an upper end portion is fixed to a floor portion of a building structure and fixed to a floor of a building structure; A screw rod member having a lower end screw-connected and movable in the vertical direction by rotating along the screw; and a screw connected to the lower end of the screw rod member by screwing and tightly contacting the upper end of the base leg. A lock nut that regulates the vertical movement of the rod member; and a support nut that is screw-coupled to the screw rod member and abuts on a lower end of the cylindrical portion of the adjustment base member to support the adjustment member. The free access floor structure according to claim 1, wherein the endless groove is formed above the support nut.