JP4046432B2 - Floor panel support leg unit - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is used when a floor panel for forming a double floor called a free access floor is disposed on a floor of a building rectangular body, etc. while maintaining a certain space between the upper surface of the floor. It is related with the support leg apparatus.
[0002]
[Prior art]
Conventionally, various types and structures of double leg support leg devices have been proposed and put into practical use. Among them, for example, in a state in which four floor panels are gathered in a square shape when viewed from the plane, a type in which each set corner of the four panels is supported by a set of leg devices. JP-A-7-102742 and JP-A-7-217171 have been proposed.
[0003]
In the known supporting leg device, a so-called independent leg type in which the corners of the four floor panels are supported by one leg member, taking the former of the above known example as an example, and the latter of the above known example as an example. There is a so-called assembly leg type (also referred to as a separation leg type) in which the gathering corners of the four floor panels are supported by individual leg members corresponding to the corners of each panel.
[0004]
The latter of the above known examples proposed by the present applicant is an assembly leg type, and is a type in which each corner of the assembled four panels is individually supported by a leg member for each corner. It is superior to the independent leg type that supports each corner of four panels with one support leg in that the load resistance is large and the height can be adjusted independently for each corner of each panel. On the other hand, there are also problems.
[0005]
That is, the assembly leg type leg device has four bolt legs erected on one base plate corresponding to each corner of the four panels, and the corners of each panel on the bottom surface via nut members respectively. Since the structure is supported from the outside, each panel is free upward, except when the load due to luggage etc. is always applied to each panel. The corners of the buoyancy are likely to float or play on the nut member that supports it from below, and when such a phenomenon occurs, there was no means to suppress or correct this. .
[0006]
[Problems to be solved by the invention]
In view of the problems of the conventional floor panel support leg device in the so-called assembly leg type as described above, the present invention has an object to provide an assembly leg type support leg device in which the floor panel does not float or rattle. To do.
[0007]
[Means for Solving the Problems]
The structure of the leg device of the present invention made for the purpose of solving the above problems is that four bolt legs for supporting four floor panels are erected on a flat base plate, and each bolt leg is provided on the outer surface. In a floor panel support leg device in which a cylindrical nut member having a flange for supporting a floor panel is screwed, and each nut member is connected by a sheet-like connecting member, the bolt leg is provided at a substantially central portion of the base plate. A central bolt member having a height approximately equal to the height of the sheet-like connecting member, and an insertion hole for the central bolt member is formed at a substantially central portion of the sheet-like connecting member. By screwing a presser nut member having a presser flange part that presses the pressing part from above and a cylindrical part cut off a female screw screwed into the central bolt member on the lower surface to the central bolt member, the cylinder A set corners of four floor panels supported by fitting the leg insertion hole in the nut member, is characterized in that it has to be fastened to the central bolt member. In the above-described configuration, the insertion hole of the central bolt member in the sheet-like connecting member can form a bolt support portion that is elastically fitted to the central bolt member on the inner peripheral surface of the hole.
[0008]
In addition, another configuration of the leg device of the present invention that can solve the above-described problem is that four bolt legs that support four floor panels are erected on a flat base plate, and each bolt leg has the above-described outer surface. In a floor panel support leg device in which a cylindrical nut member having a flange for supporting each panel is screwed, a central bolt member having substantially the same height as the bolt leg is erected upward at a substantially central portion of the base plate. When the corners of the panels are fitted into the bolt legs in the respective leg insertion holes and the panels are supported from below by the flange portions of the cylindrical nut members, the central bolt members are screwed together. The central bolt portion by pressing the collective corner portion of each panel from above by screwing a presser nut member having a cylindrical portion to the bolt member through a hole formed by the collective corner portion of each panel. It is characterized in that so as to be fastened to.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the leg device of the present invention will be described with reference to the drawings. 1 is a perspective view showing an example of the leg device of the present invention in an exploded state, FIG. 2 is a cross-sectional view for explaining an assembled state, and FIG. 3 is a perspective view showing one place of a corner portion of one floor panel, FIG. 4 is a cross-sectional view showing an example of the leg device of the present invention that does not use a sheet-like connecting member.
[0010]
1 to 3, reference numeral 1 denotes a substantially square base plate as viewed from above, and four bolt legs that serve as legs that support the aggregate corners of the four floor panels P for each panel P at substantially four corners. 2 is erected. Male legs are cut on at least the upper half of these legs 2. A hole (not shown) for driving an anchor bolt for fixing the plate 1 to the foundation floor may be provided around the plate 1.
[0011]
3 is a cylindrical nut member that is screwed to each bolt leg 2 and adjusts the position (height) to support each floor panel P. Each nut member 3 has a panel P on the outer periphery of the intermediate portion. An outer flange 3a that is supported from below is formed, and a screw hole 3b that is screwed into the bolt leg 2 passes through the center, and the top of the screw hole 3b can be fitted with a tool such as a square wrench. It is formed in the square hole 3c, and the height of the cylindrical nut member 3 on the bolt leg 2 can be adjusted even after the floor panel P is laid. Instead of the square hole 3c, the outer periphery of the top of the cylindrical nut member 3 may be formed in a rectangular outer shape such as a hexagonal shape together with the square hole 3c.
[0012]
Reference numeral 4 denotes a central bolt member erected at the center of the base plate 1, which has the same configuration as that of the bolt leg 2, and is used for screwing a presser nut member to be described later. The bolt member 4 is not required to have the same height as the bolt leg 2 from the height at which the top is slightly lower than the panel surface to the height of the bolt leg 2, for example, about 1/2. If it is equivalent, the bolt leg 2 can be diverted and it is convenient.
[0013]
Reference numeral 5 denotes a sheet-like connecting member for connecting four cylindrical nut members 3 respectively screwed to the four bolt legs 2 erected on the base plate 1. In the conventional product, 5 is substantially the same as the base plate 1. The plastic sheet material having the same shape has a structure in which four holes 6 to be fitted into the nut member 3 are formed. In this embodiment, a sheet having a receiving cylinder portion 8 described later is used. is doing. 6a is a standing flange erected on the edge of each hole 6 for vertically holding each nut member 4 fitted in the hole 6.
[0014]
The above-mentioned sheet-like connecting member 5 is mainly intended to prevent the cylindrical nut member 3 screwed on each bolt leg 2 of the base plate 1 from rotating alone by vibration or impact. The above-mentioned Japanese Patent Laid-Open No. 7-217171 was the main constituent member of the invention according to the patent No. 2797171, but the present invention has the following configuration.
[0015]
The sheet-like connecting member 5 has a receiving cylinder portion 8 having an insertion hole 9 for the central bolt member 4 on the lower surface of the central portion as a new configuration to be described later. The presser nut member 7 provided with a screw cylinder 7a that is screwed to the bolt member 4 and performs a nut function for cooperation is described below.
[0016]
First, on the lower surface side of the central portion of the plastic sheet-like connecting member 5, there are four concave surfaces Pi inside the pressed portions Pr (see FIG. 3) formed at the respective corners of the four floor panels P. A receiving cylinder portion 8 is formed that is loosely fitted into a standing wall-like hole formed as a group, and the center bolt member 4 is elastically guided to the center of the bottom wall 8a of the receiving cylinder portion 8. The bolt insertion hole 9 having the tongue piece 9a for holding it was formed. Here, four tongue pieces 9a are formed, but the number of the tongue pieces 9a is arbitrary as long as the central bolt member 4 can be elastically supported. In the present invention, the connection member 5 in which the bolt insertion hole 9 is formed in the central portion of the sheet-like connection member 5 without using the receiving cylinder portion 8 may be used.
[0017]
The central bolt member 4 is inserted from a lower surface of the connecting member 5 into a bolt insertion hole 9 formed at the center of the sheet-like connecting member 5. On the other hand, the presser nut member 7 is provided with a screw cylinder 7a having a screw hole passing through the center at the center of the lower surface thereof, and a pressed portion Pr of the floor panel P is formed at the upper part of the screw cylinder 7a. The disc body 7c is formed integrally with a flange portion 7b having a downward standing wall shape that fits into the annular groove. Reference numeral 7d denotes a square hole formed on the upper surface of the disc body 7c so as to communicate with the screw cylinder 7a. The above-described configuration of an example of the leg device of the present invention will be described below.
[0018]
Four cylinder nut members 3 are respectively screwed on the four bolt legs 2 of the base plate 1 to adjust the height of the nut members 3 on the bolt legs 2. Next, the nut members 3 are mounted through the respective holes 6 of the members 5 so as to cover the sheet-like connecting members 5 made of synthetic resin from above. At this time, the lower surface of the sheet-like connecting member 5 is pressed against the upper surface of the flange 3a of each nut member 3. At the time of this pressing operation, the bolt hole 9 is held in the receiving tube portion 8 formed at the center of the connecting member 5. Each tongue piece 9a is inserted into the tube portion 8 through the upper portion of the central bolt member 4 while being bent by its elasticity. At the end of pushing in the sheet-like connecting member 5, each of the tongue pieces 9 a is inserted into the screw groove of the central bolt member 4, so that the sheet-like connecting member 5 is brought into close contact with the upper surface of the flange portion 3 a of the cylindrical nut member 3. Press at level and hold in this position.
[0019]
With respect to the four cylindrical nut members 3 which are connected to each other while being pressed against the flange 3a by the action of each tongue piece 9a of the bolt insertion hole 9 in the sheet-like connecting member 5, When fitting from above the leg insertion hole pH formed at the collective corner of the floor panel P, the concave surface Pi inside the pressed part Pr having a substantially concave cross section formed at the collective corner end of each floor panel P is: The hole located substantially coaxially below the receiving cylinder part 8 formed in the lower surface center part of the sheet-like connection member 4 will be formed.
[0020]
Therefore, when the presser nut member 7 is screwed into the screw portion of the central bolt member 4 in the screw cylinder 7a through the hole formed by the inner concave surface Pi of the collective corner portion of the four panels P, this screwing causes The flange portion 7b forming the downward annular standing wall formed on the lower surface of the disc body 7c in the upper portion of the presser nut member 7 is formed in the annular groove formed by the pressed portion Pr at the gathering corner portion of the four panels P. Enters and presses the pressed portion Pr forming the annular shape of each panel P substantially evenly.
[0021]
When the gathering corner of each panel P is pressed from above by the flange portion 7b of the presser nut member 7, this pressing force is inserted into the leg insertion hole pH of each panel P, and the panel P is moved to its lower surface. Since each flange portion 3a of each cylindrical nut member 3 supported from above is pressed from above via each panel P, each cylindrical nut member 3 and the female in each bolt leg 2 to which they are screwed together. , The male threaded portions are in close contact with each other at their peaks and valleys, and each cylindrical nut member 3 is floated on each bolt leg 2, that is, in a state where it is screwed in an unloaded state. Will be forcibly lost.
[0022]
The above description is an example of the leg device of the present invention using the sheet-like connecting member 5, but the leg device of the present invention may not use the sheet-like connecting member 5 as illustrated in FIG. 4. In the same manner as in the previous example, the pressed nut member 7 is pressed from the upper surface of the pressed portion Pr at the collective corner of each panel P supported on the flange portion 3a of the cylindrical nut member 3 screwed on the bolt leg. Therefore, the play of the screw thread and the valley of the screwing portion in the bolt leg 2 and the cylindrical nut member 3 can be fixed, and the generation of rattling noise can be prevented. In the illustrated example, the sheet-like connecting member 5 is formed with the receiving cylinder portion 8 having the bolt insertion hole 9 on the lower surface side of the central portion, but the bolt insertion hole 9 is provided in the present invention. However, the sheet-like connecting member 5 that does not have the receiving cylinder portion 8 may be used. The receiving cylinder portion 8 is for increasing the adjustment range of the vertical position of the nut member 7 when the presser nut member 7 is screwed to the central bolt member 4. This is because the leg device of the present invention is established.
[0023]
【The invention's effect】
The present invention is as described above. Conventionally, the gathering corners of the four floor panels are only supported from below on the flanges of the cylindrical nut members respectively screwed on the four bolt legs. In the state where no load is applied to each panel from the upper surface side, due to the mechanical play at the screw threaded portion between the cylindrical nut member and the bolt leg on which it is screwed, for example, when the person walks, In the present invention, a fifth central bolt member is erected at the center of the base plate on which the four bolt legs are erected, and the collective corners of the panel members are arranged on the bolt member from above. Since the presser nut member to be pressed is screwed and attached, the state that it is mounted from above and supported from below by the flange part of the cylindrical nut member at the corner of each panel is pressed from above by the presser nut member. And forcibly fix In the generation of conventional in rattling sound due to mechanical play in the threaded engagement portion which occurs it can be prevented almost perfectly.
[0024]
In addition, each cylindrical nut member that supports each floor panel has a square hole at the top of the screw hole and is exposed on the top surface of each floor panel, so lay the floor panel and tighten the presser nut member Even after that, it is possible to fine-tune the position by rotating on each bolt leg. This adjustment can be performed more easily if the clamp nut member is slightly loosened.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an example of a leg device of the present invention in an exploded state.
FIG. 2 is a cross-sectional view for explaining an assembled state.
FIG. 3 is a perspective view showing one place of a corner of one floor panel.
FIG. 4 is a cross-sectional view showing an example of a leg device of the present invention that does not use a sheet-like connecting member.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Base plate 2 Bolt part 3 Cylindrical nut member 4 Center bolt member 5 Sheet-like connection member 6 Hole 7 Presser nut member 8 Receiving cylinder part 9 Bolt insertion hole
9a Bolt holding piece

Claims (4)

Four bolt legs for supporting the four floor panels are erected on the flat base plate, and a cylindrical nut member having a flange for supporting the floor panel formed on the outer surface is screwed to each bolt leg. In the floor panel support leg device in which each nut member is connected by a sheet-like connecting member, a central bolt member approximately up to the same height as the bolt leg is erected upward at a substantially central portion of the base plate. An insertion hole for the central bolt member is formed in a substantially central portion of the connecting member, and is screwed into the presser flange portion that presses the pressed portion formed at the corner of the floor panel from above and the central bolt member. Four floors supported by inserting a leg insertion hole into the cylindrical nut member by screwing a presser nut member having a cylindrical portion with a female screw cut on the lower surface thereof into the central bolt member Set of panels Part of the floor panel support leg device being characterized in that as fastened to the central bolt member. 2. A floor panel support leg according to claim 1, wherein the sheet-like connecting member is formed with a receiving tube portion of the presser nut member on the lower surface side of the central portion thereof, and an insertion hole of the central bolt member is formed in the bottom wall of the receiving tube portion. apparatus. The floor panel support leg device according to claim 1 or 2, wherein the insertion hole of the central bolt member in the sheet-like connecting member is formed with a bolt support portion that is elastically fitted to the central bolt member on an inner peripheral surface of the hole. Four bolt legs that support four floor panels are erected on a flat base plate, and a cylindrical nut member having a flange that supports each panel on the outer surface is screwed to each bolt leg. In the floor panel support leg device, a central bolt member having substantially the same height as the bolt leg is erected upward at a substantially central part of the base plate, and a set corner of each panel is inserted into each bolt leg. A presser nut member having a cylindrical portion screwed into the central bolt member when the panel is supported from below by a flange portion of each cylindrical nut member inserted in the working hole, The floor panel support is characterized in that by screwing the bolt member through the hole formed by the above, the corners of each panel are pressed from above and fastened to the central bolt member. Apparatus.

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