JP3493325B2 - Panel corner connecting device for floor panel supporting leg device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a floor panel for forming a double floor called a free access floor on a floor of a rectangular building, etc. with a constant space between the floor panel and the upper surface of the floor. The present invention relates to a panel connecting device in a supporting leg device used for holding and arranging.

[0002]

2. Description of the Related Art Conventionally, various types and structures of supporting legs for double floor have been proposed and put into practical use. A so-called separated leg type in which a gathering corner of four floor panels is supported by individual leg members corresponding to the corners of each panel in a known supporting leg device. There is.

As one of the basic structures of this separation leg type supporting leg device, four metal bolt legs are provided on one base plate corresponding to each corner of four metal floor panels assembled. There is a structure in which each bolt leg is provided upright and a tubular or bag-shaped nut member made of metal or the like is provided as a support member at the corner of each panel, and the corner of each panel is supported from the bottom surface. By adjusting the vertical position of each nut member on each bolt leg, there is a function of preventing unevenness of the upper surface of each panel corner. However, when the floor device is supported by this leg device, the corners of each panel are in a free state in the upward direction, so if there is unevenness on the underlying floor surface or vibration during use, each floor There is a problem that the corner of the panel floats up on the tubular nut member that supports it from below, or it rattles and emits a metallic sound, and there is a problem with the metal nut member and the screw threaded portion of the bolt leg. It has been pointed out that mechanical play causes rattling noise and loose rotation of the nut member.

On the other hand, there is also a separation leg type supporting leg device which copes with the above problems. In this support leg device, four metal bolt legs that support four floor panels are erected on a flat base plate, and each bolt leg is formed with a flange portion for supporting the floor panel on the outer surface. The point of screwing the made nut member is the same as that of the above example,
In order to prevent the rotation of each nut member, a structure in which the nut members are connected by a sheet-shaped member is added.

Further, in order to prevent the floor panels mounted on the nut member from floating, the upper end of the base plate or the sheet-shaped member is approximately at the same height as the upper ends of the bolt legs. While a metal central bolt member is erected upward, a pressing flange portion that presses a pressed portion formed in a corner portion of the floor panel from above and a female screw screwed to the central bolt member are cut. Four floor panels supported by inserting a leg insertion hole into the nut member by screwing a connecting member at the corner of the panel by a nut-shaped member having a tubular portion on the lower surface into the central bolt member. There is also a structure in which the collecting corners of the above are tightly connected to the central bolt member.

Further, in addition to the above-mentioned separated leg type, one bolt leg is erected in the center of the base plate in the support leg device of the floor panel, and the bolt leg has a gathering corner of four floor panels. A nut member provided with a large flange portion for mounting and supporting the portion is provided so as to be vertically movable, and a connecting member for connecting the corner portions of the four floor panels collectively mounted on the flange portion, There is a type in which the nut member, the flange portion thereof, or the bolt leg is screwed.

In each of the above supporting leg devices, since the vertical position of the nut member is adjusted on the bolt leg, tools such as a screwdriver and a square wrench for rotating the nut member are indispensable. In the floor laying work, the need for the above tools is disadvantageous because the tools are used every time the position of the nut member is adjusted, and the work efficiency is not good. There is also the annoyance of having to prepare in advance for multiple workers.

[0008]

SUMMARY OF THE INVENTION In view of the present situation of the position adjusting operation of the nut member on the bolt leg in the panel supporting leg device described above, the present invention does not require a separate tool such as a square wrench to be separately prepared. It is an object of the present invention to provide a panel corner connecting device having a function that can be used as a tool for adjusting the position of a tubular nut member on a bolt leg.

[0009]

The structure of the panel connecting device of the present invention made for the purpose of solving the above problems is as follows.
A bolt member provided upright on a flat base plate for supporting the corners of the four floor panels, and a nut member having a flange portion for supporting the corners of the floor panel and screwed into the bolt leg. And having a pressing portion for pressing the corner of each floor panel from above on the upper portion and forming the lower portion directly or indirectly by screw connection to any of the base plate, the bolt leg, and the nut member, In a supporting leg device for a floor panel having a connecting member at each floor panel corner, a recess having a non-circular cross section for rotating the connecting member is formed on the upper surface of the connecting member at the panel corner, and the lower end of the connecting member is formed. The main feature is that the portion is formed in a convex portion having a non-circular cross section that fits in the concave portion.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of a panel connecting device of the present invention will be described with reference to the drawings. 1 is an exploded perspective view showing an example of a floor panel support leg device to which a panel corner connecting device according to the present invention is applied, and FIG. 2 is a front view for explaining an assembled state of the support leg device of FIG. FIG. 4 is a cross-sectional view, FIG.
4 is a front view of an example of the nut member, FIG. 5 is a plan view of the nut member of FIG. 4, and FIG. 6 is a state of rotating the nut member of FIG. 4 using the connecting member at the corner of the panel of FIG. Front view,
FIG. 7: is a perspective view which shows one place of the corner part in one floor panel.

In FIG. 1 and FIG. 2, reference numeral 1 denotes a base plate having a substantially square shape when viewed from the top, and legs for supporting the corners of four floor panels P assembled at the four corners for each panel P. The four bolt legs 2 are installed upright. At least the upper half of the bolt leg 2 has an external thread. Further, a hole 1a for driving an anchor bolt or the like for fixing the plate 1 to the foundation floor is provided in the center and the periphery of the plate 1, but there is also a base plate 1 in which such a hole is not provided.

In FIGS. 1 to 6 except FIG. 4, reference numeral 3 denotes a position (height) at which the bolt legs 2 are respectively screwed.
Is a tubular nut member for adjusting the corners of the floor panel P and supporting the corners of each floor panel P. In this example, the nut member is formed of a synthetic resin material as follows. That is, each nut member 3 is formed with an outer flange 3a for supporting a corner portion of the floor panel P from the lower surface side on the outer periphery of an intermediate portion in the longitudinal direction thereof, and a through hole at the inner center.
3b is formed, and the bolt leg 2 is provided at the lower end of the through hole 3b.
The metal nut 3c formed with a screw to be screwed into
It is provided so as to be embedded from the lower side, and the top of this through hole 3b has a square hole 3d into which a tool such as a square wrench can be fitted.
Is formed in. With this configuration, even after laying the floor panel P, the height of the tubular nut member 3 can be adjusted on the bolt leg 2. Here, the tubular nut member 3
Instead of the embedded metal nut 3c, a structure in which the screw of the nut 3c is integrally molded with the nut member 3 may be used when the tubular nut member 3 is molded. The nut member 3 also has a bag-shaped nut member (not shown), but the bag-shaped nut member also has a square hole at the top. If the whole nut member 3 is molded with a synthetic resin material, the manufacture becomes easy and the nut member 3
Since the screwing surface of the metal bolt leg 2 comes into contact with the metal and the synthetic resin, contact noise and rattling noise are suppressed, which is convenient.

Reference numeral 4 denotes an upright position on the base plate 1.
A hole into which the portion of the nut member 3 in which the nut 3c is embedded is inserted in order to connect the four tubular nut members 3 screwed in the metal nut 3c to the bolt leg 2 of the book.
It is a sheet-shaped member made of a metal thin plate or a synthetic resin thin plate having four corners formed at the four corners, and in the illustrated example, a female screw hole 5 functioning as a female screw is formed in the central portion. A female screw cylinder (not shown) may be attached instead of the screw hole 5.

Reference numeral 6 denotes a floor panel corner connecting member that joins the corners of each floor panel in a form of pressing each other. The lower surface of the connecting member has a short columnar shape, and a taper portion 6t is provided on the lower half side thereof. While forming a male screw portion 6a, a wrench portion 6b having a smaller diameter than the screw portion 6a and having a rectangular wrench shape is formed below the screw portion 6a, while a disk-shaped head portion 6c and A downwardly formed pressing flange portion 6d is provided on the outer peripheral lower surface of the head portion 6c, and a square hole-shaped recess 6e into which the wrench portion 6b can be fitted is formed at the center of the head portion 6c. 1 to 6 constitute an example of the supporting leg device including the panel corner connecting device according to the present invention. Next, the usage mode thereof will be described.

First, the sheet-like member 4 is inserted into the four bolt legs 2 erected on the base plate 1 at the four holes 4a at the four corners, and then the four tubular nut members 3 are respectively attached. The bolt leg 2 is screwed to adjust the height of each nut member 3 on the bolt leg 2. Next, the sheet-shaped member 4 previously inserted into the bolt leg 2 is lifted to each nut member 3 whose height is positioned, and the sheet-shaped member 4 is attached from the lower half side of each nut member 3. Attach through hole 4a. At this time, the upper surface of the sheet-shaped member 4 is brought into contact with the lower surface of the flange 3a of each nut member 3. In this abutment, although not shown, a protrusion for preventing rotation is formed on the outer periphery of the lower portion of each nut member 3 so that each hole is
By the inner circumference of 4a elastically abutting the convex portion,
The sheet-shaped member 4 can be held while being prevented from rotating in that position.

In this state, when it is necessary to adjust the vertical position of each cylindrical nut member 3 on each bolt leg 2, as shown in FIG. 6, the connecting member 6 at the corner of the panel of the present invention. The position of the tubular nut member 3 on the bolt leg 2 is fixed by fitting the wrench portion 6b of the above into the square hole 3d of the tubular nut member 3 and rotating the connecting member 6 forward or backward. It can be adjusted without the use of tools.

As shown in FIG. 7, the four tubular nut members 3 connected to each other via the sheet-shaped member 4 after the above-mentioned adjustments are performed as shown in FIG. The tubular nut members 3 are inserted into the leg insertion holes pH formed in the corners of the floor panels P from above. This makes 4
The concave standing wall Pi inside the pressed portion Pr having a substantially concave cross-section formed at the end of the corner portion of the floor panels P encloses the female screw hole 5 formed in the central portion of the sheet-like member 4 above it. Then, one hole will be formed.

Therefore, through the holes formed by the recessed standing walls Pi at the corners of the four floor panels P, the connecting member 6 at the corners of the panel is screwed with the male screw portion 6a into the screw hole 5 as it is. When screwed in, the pressing flange portion 6d forming a downward annular standing wall formed on the lower surface of the upper disk-shaped head portion 6c of the connecting member 6 by the screwing is formed into the gathering corner portion of the four panels P. Into the annular groove formed by the pressed portion Pr, presses the annular pressed portion Pr of each panel P substantially evenly, and the male screw portion 6a is screwed into the screw hole 5 of the sheet-like member 4. As a result, the force due to the screw connection acts on the side where the sheet-shaped member 4 is pulled upward.

Holding flange portion of the connecting member 6 at the corner of the panel
When the gathering corners of each floor panel P are pressed from above by 6d, the force by the screw connection between the screw portion 6a and the screw hole 5 that causes this pressing force is generated by the leg insertion hole of each panel P. Since each flange portion 3a of each tubular nut member 3 that is inserted into the pH and supports each panel P from its lower surface is pulled upward, the screws of each nut 3c in each tubular nut member 3 and Each bolt leg 2 with which the screw of the nut 3c is screwed
The male threaded portions of the two are closely contacted with each other at their peaks and valleys, and each tubular nut member 3 is screwed onto the bolt leg 2 in a floating state on each bolt leg 2, that is, in an unloaded state. You can forcibly eliminate the state of being left alone. The taper portion 6t formed adjacent to the upper end of the threaded portion 6a of the connecting member 6 restrains the screwing of the threaded portion 6a into the screw hole in a braking manner. Acts to prevent.

As described above, the connecting member 6 at the corner of the panel
Even after it becomes necessary to adjust the height of any one of the tubular nut members 3 after fixing the four floor panels P by means of the above, the connecting members 6 at the panel corners for other supporting leg devices, The wrench portion 6b has a cylindrical nut member 3 as illustrated in FIG.
It is possible to adjust the height of the nut member 3 by fitting it into the square hole 3d in the upper part and rotating it. Even when the connecting member 6 at the panel corner of another supporting leg device is attached to the connecting member 6 at the panel corner of another supporting leg device, the former wrench portion 6b is fitted into the latter square hole 6e. By rotating the former connecting member 6, it can be used as a tool for attaching the latter connecting member 6.

In the above description, the upper portion of the tubular nut member 3 is formed with a square hole 3d as a non-circular concave portion. It may be a non-circular shape other than a perfect circle, such as an oval shape or an arc shape. This also applies to the square hole 6e formed in the upper part of the connecting member at the corner of the panel. Therefore, the flat cross-sectional shape of the convex portion formed at the lower end portion of the connecting member 6 at the panel corner is the cylindrical nut member 3 and / or the non-circular concave portion 3d formed at the connecting member 6 at the panel corner. The cross-sectional shape corresponding to the shape of 6e may be selected.

Although the example described above relates to a so-called separated leg type supporting leg device, the present invention is also applicable to a so-called independent leg type supporting leg device whose schematic cross section is shown in FIG. The points will be briefly described.
In FIG. 8, the same members and parts as those in FIGS. 1 to 7 are designated by the same reference numerals.

In the supporting leg device of FIG. 8, the base plate 1
A thick bolt leg 2 is erected at the center of the bolt leg 2, and a nut member 3 having a wide flange 3c integrally or separately on the upper portion is screwed on the bolt leg 2 so as to be movable up and down.

At the center of the upper surface of the flange 3c, a support cylinder portion 51 for supporting the floor panel corner portion from the lower surface is provided upright.

The structure of the connecting member 6 is substantially the same as that of the embodiment described above. That is, the pressing flange portion 6d is formed downward on the outer peripheral side lower surface of the disk-shaped head portion 6c, the square hole 6e is provided in the center of the upper surface, and the bolt leg 2 is screwed into the center of the lower portion. A female screw portion 6a 'is provided, and a wrench portion 6b having a cross section that can fit into the square hole 6e is formed below the female screw portion 6a'. With this configuration, the connecting member 6 at the corner of the floor panel in the so-called independent leg type supporting leg device can also be used as a tool for rotating the connecting member 6 in another leg device, as in the example described above. Can be done.

[0026]

The present invention is as described above, and as an example, a wrench tool is provided at the lower end portion of the connecting member that joins the corners of each panel that is assembled by butting and each corner is supported by the nut member. While forming a non-circular convex portion that operates, a non-circular concave portion into which the convex portion is fitted as a tool is formed in the upper portion of the nut member and / or the upper portion of the connecting member at the panel corner portion to form a panel corner. Since the connecting device of the part is formed, the rotation of the nut member or the connecting member at the corner of the panel can be rotated without using a predetermined tool such as a wrench. A special effect not obtained by the supporting leg device can be obtained.

Further, since a predetermined tool such as a wrench is not used for rotating the nut member or the connecting member at the corner of the panel, it is not necessary to prepare such a tool in advance.
Even when the floor panel is laid on site, there is no need to search for a predetermined tool such as a wrench every time the two members are rotated, which has the advantage of improving work efficiency.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a floor panel supporting leg device to which a panel corner connecting device according to the present invention is applied in an exploded state.

FIG. 2 is a front sectional view for explaining an assembled state of the support leg device of FIG.

FIG. 3 is a front view of an example of a connecting member at a panel corner according to the present invention.

FIG. 4 is a front view of an example of a nut member.

5 is a plan view of the nut member of FIG.

6 is a front view of the state where the nut member of FIG. 4 is being rotated by using the connecting member at the corner of the panel of FIG.

FIG. 7 is a perspective view showing one location of a corner portion of one floor panel.

FIG. 8 is a front sectional view of another example of a supporting leg device for a floor panel to which the panel corner connecting device according to the present invention is applied.

[Explanation of symbols]

1 base plate 2 bolt legs 3 Cylindrical nut member 4 Sheet-like members 4a four corner holes 5 female screw holes 6 panel connecting members 6a Male thread 6b wrench 6c head 6d Presser flange 6e square hole

Continuation of the front page (56) References JP-A-5-209456 (JP, A) JP-A-6-299679 (JP, A) JP-A-9-195489 (JP, A) Actual Kaihei 5-54734 (JP , U) Actual Kaihei 6-49636 (JP, U) Actual Kaihei 2-125135 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) E04F 15/00-15/024

Claims (4)

(57) [Claims] 1. A bolt leg that is erected on a flat base plate for supporting the corners of four floor panels, and a flange portion for supporting the floor panel corners. A nut member to be mounted and a pressing portion for pressing the corner of each floor panel from above, and the lower portion is directly or indirectly screwed to any one of the base plate, the bolt leg, and the nut member. Formed as
In a supporting leg device for a floor panel having a connecting member at each floor panel corner, a recess having a non-circular cross section for rotating the connecting member is formed on the upper surface of the connecting member at the panel corner, and the lower end of the connecting member is formed. A connecting device for a panel corner portion in a floor panel supporting leg device, wherein the portion is formed in a convex portion having a non-circular cross section that fits in the concave portion. 2. A bolt leg provided upright on a flat base plate for supporting the corners of four floor panels, and a flange portion for supporting the substantially floor panel corners. A nut member to be mounted and a pressing portion for pressing the corner of each floor panel from above, and the lower portion is directly or indirectly screwed to any one of the base plate, the bolt leg, and the nut member. In a supporting leg device for a floor panel having a connecting member for each floor panel corner formed as described above, a non-circular shape is provided at the lower end of the panel corner connecting member for rotating the nut member formed above the nut member. A connecting device for corners of a panel, characterized in that a convex portion having a non-circular cross section that fits into a concave portion of the cross section is formed. 3. A bolt leg provided upright on a flat base plate for supporting the corners of the four floor panels, and a flange portion for supporting the substantially floor panel corners. A nut member to be mounted and a pressing portion for pressing the corner of each floor panel from above, and the lower portion is directly or indirectly screwed to any one of the base plate, the bolt leg, and the nut member. In a supporting leg device for a floor panel having a connecting member for each floor panel corner formed as described above, a recess having a non-circular cross section for rotating the connecting member is formed on the upper surface of the panel corner connecting member,
A convex portion having a non-circular cross section that fits into the concave portion is formed at the lower end portion of the connecting member, and on the upper surface of the tubular nut member,
A connection device for a panel corner, wherein a non-circular recess into which the protrusion is fitted is formed. 4. The panel corner connecting device according to claim 1, wherein the panel corner connecting member is formed of a synthetic resin material.