JPS60133158A - Elastic floor foundation - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] (Technical division) This invention relates to an elastic flooring base constructed by a flooring method in which a large number of unitized flooring panels each consisting of a base panel and support legs with cushion rubber are lined up in a heavy manner. It is.

(Prior art) In addition to the advantage of being able to significantly shorten the construction period using the dry method, elastic flooring substrates also have the advantage of being able to design the most appropriate floor elasticity for sports competitions using the cushioning rubber provided on the support legs. Therefore, it is widely used in sports facilities such as gymnasiums.

On the other hand, in recent years, gymnasiums have become comprehensive welfare facilities with the aim of improving the level of welfare culture and multipurpose use. The number of establishments of multipurpose halls, etc. is increasing. Although elastic floor bases are useful in such facilities, the load applied to one floor base panel when the movable seats are set up for display and accommodates spectators is i,ooo ~ 15,0OOK Q Covers a range of. When such a heavy load is applied, the cushion rubber attached to the support legs will be compressed, and the amount of deformation (sinking) of the floor will be quite large, over 10 u, so it is difficult to improve the durability of the floor. Bad effects will occur. That is, unnecessary large depressions of the floor occur unevenly as the seats move, resulting in inconveniences such as damage to the fitting portion of the wooden finishing material of the floor.

Therefore, supporting leg structures with cushioned rubber are indispensable in order to provide appropriate elasticity during athletic movements of athletes, etc., and as mentioned above, it is necessary to install movable bleachers as gymnasiums become comprehensive welfare facilities. , it became necessary to solve problems in terms of durability due to heavy loads.

〔the purpose〕

This invention was invented in view of the above circumstances,
In order to accommodate new ways of using elastic flooring substrates, support legs with cushioned rubber maintain the elasticity of the floor during regular use.
The purpose of this product is to prevent deformation of the support legs beyond the normal range when a load is applied, thereby providing an elastic flooring base with no concerns regarding the durability of the floor. be.

(Structure) In order to achieve the above object, this invention has optimal elasticity when the supporting legs in areas where the load changes are large are used as areas for sports competitions, and when movable spectator seats and the like are installed, the supporting legs are When supporting the cushion rubber of the support leg, a stopper mechanism provided around the support leg is configured to prevent further deformation when the cushion rubber of the support leg exceeds a predetermined amount of compressive deformation.

〔Example〕

Preferred embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows the floor structure of a gymnasium equipped with movable bleachers 100 on the floor. When not needed, the movable bleachers 100 are folded and stored in a wall storage space 200. When in use, it is pulled out in the direction of the arrow by a drive device (not shown) so that it can be unfolded.

A part of the flooring used in this floor structure is attached to support legs 3 through mounting brackets 2 at least in the four corners of the base panel 1.
A receiving metal fitting 4 is attached to the lower end of this support leg 3, and a cushion rubber 5 is attached to this receiving metal fitting 4 (see Fig. 2).

Such a structure is similar to a conventional elastic flooring base. Threaded portions 3a and 3b are formed at the upper and lower ends of the support leg 3 so as to have opposite threads to each other, and the mounting bracket 2
and is screwed into the receiving metal fitting 4.

The level of the floor surface can be adjusted by adjusting the screwing condition of these threaded parts 3a and 3b. Such a subfloor is used at the location C in FIG. This location C is a location where the load of the movable bleachers 100 is not applied.

The flooring at the location where the wall storage space 200 is provided (location A in FIG. 1) does not need to be a resilient floor surface, so the cushion rubber 5 is used as shown in FIGS. 3 and 4. Instead, a receiving part 6 with almost no elasticity is provided. This wall storage space 200 requires the most load-bearing strength, and even when the maximum load is applied (when the movable seats 100 are retracted) and the minimum load state (the state shown in FIG. 1), It is desirable that there be no change in the height of the floor surface.

At the location shown in FIG. 1B, when the movable grandstand 100 is displayed, the load is applied to the grandstand 100 in such a way that the load is reduced in the direction of the arrow in FIG. 1, and when the movable grandstand 100 is stored, This area can be used as an area for regular sports competitions, similar to the area shown in Figure 1C. In other words, it must exhibit appropriate elasticity during athletic movements of athletes and the like, and must be able to prevent sinking and bending when the movable bleachers 100 are deployed, which would impair durability.

To this end, a stopper mechanism 7 is provided around the support leg 3 in the flooring at this location to prevent further deformation when the cushion rubber 5 of the support leg 3 exceeds a predetermined amount of compressive deformation.

As an example of the stopper mechanism 7, as shown in FIG.
The cylindrical body 71 is fixed to the receiving bracket 4 to which the lower end of the support leg 3 is attached, and the lower end (opening end) of the cylindrical body 71 is extended outward to form a flange 72, and the lower surface of the flange 72 and the cushion rubber There is a gap S between the surface that landed on the base 1O of 5
This is provided.

This gap S is the normal deformation range of the cushion rubber 5...
The amount of compressive deformation of rubber within the range that can exhibit floor elasticity suitable for use as a sports area may be slightly exceeded. For example, the static spring constant KS of the cushion rubber 5 is 250 to 450! ;l
/ca, the normal deformation range does not exceed 3n, so the gap S may be about 4 to 6n. Therefore, even if the movable seats 100 move, the floor surface at the location 8 in FIG. 1 will sink by a maximum of 4 to 6
This can be suppressed by n. It is desirable to attach a rubber sheet 8 or the like to the lower surface of the flange 72 of the stopper mechanism 7 (see FIG. 6) to prevent floor noise. Note that the function as a stopper can be achieved even without the flange 72.

The structure of the receiving bracket 4 to which this stopper mechanism 7 is attached is the same as that used in the section A-C in FIG.
(See Figure 7). With such a structure, the bracket 4 is
All parts A-B-C in Fig. 1 are the same, and it is only necessary to attach the receiving part 6 and stopper mechanism 7 to this receiving bracket 4 as necessary, which is advantageous in terms of manufacturing and management of parts. becomes.

In addition, as another stopper mechanism 7, as shown in FIG. The peripheral edge of the receiving plate 41 of the receiving metal fitting 4 may be extended to form a gap S between the extending portion 41a and the upper end of the cylindrical body 73.

Further, as shown in FIG. 9, a stopper metal bolt 74 is suspended from the base panel 1 in the vicinity of the support leg 3, and the stopper mechanism 74 is formed by means of forming a gap S between its tip and the base 10. may be configured. It is desirable to fit a cap 74a-t of rubber, nylon, or the like onto the tip of the metal bolt 74 to prevent it from forming.

Still another stopper mechanism 7 shown in FIG. 10 has a stopper rod 75 formed by extending the lower end of the receiving metal 4, and a stopper rod 75 that is inserted into the cushion rubber 5 and the lower end of the stopper rod 75, which is inserted into the cushion rubber 5. A gap S is formed between the rubber 5 and the lower surface (base!!10).

In addition, the code|symbol 20 in the figure is a floor surface finishing material.

FIG. 11 shows an example in which the supporting leg structures at each location A, B, and C explained above are specifically arranged.
It is possible to use a combination of the structure at point B and the structure at point A depending on the weight of the object. This 11th
In the figure, the X mark indicates the support leg structure at the A location, the 0 mark indicates the support leg structure at the B location, and the Δ mark indicates the support leg structure at the C location.

It should be noted that although it is possible to adopt the support leg structure at point B for all floorings, it would result in the use of many unnecessary parts, which is unfavorable from an economical and construction standpoint.

〔effect〕

As explained above, the present invention provides an elastic flooring substrate in which multiple flooring panels each consisting of a base panel and support legs with cushion rubber are lined up, in which the cushion rubber of the support legs exceeds a predetermined amount of compressive deformation. Because a stopper mechanism is installed around the supporting legs to prevent further deformation, the floor can support heavy loads without any loss of elasticity, which is an important function for a gymnasium floor. Unnecessary sinking of the floor, which could lead to damage to finishing materials, etc., can be prevented.

Furthermore, the stopper mechanism constructed of a cylinder, a stopper metal bolt, or a stopper rod has a simple structure and is easy to construct.

[Brief explanation of drawings]

Figure 1 is a schematic side cross-sectional view of the movable bleachers in an expanded state, Figure 2 is a partially cutaway perspective view showing the basic structure of the subfloor, and Figure 3 is a schematic view of locations A, B, and C in Figure 1. Detailed view, Figure 4 is a sectional view of the support leg structure at location A in Figure 1, Figure 5 is a sectional view of the support leg structure at location B in Figure 1, and Figure 6 is a rubber sheet attached to the stopper mechanism in Figure 5. 7 is a sectional view showing a modification of FIG. 5, FIG. 8 is a sectional view showing another stopper mechanism, and FIG. 9 is a sectional view showing another stopper mechanism. 10 is a sectional view showing another embodiment,
FIG. 11 is a plan view. 1...Base panel, 3...Support leg, 5...Cushion rubber, 7...Stopper opening Fig. 1 Fig. 2 Fig. 4 Figure 7 Figure 6 Φ Figure 8 Figure 9 Figure 1 O Figure 11 l=(A

Claims (1)

[Scope of Claims] 1. In an elastic flooring substrate in which a large number of flooring panels each consisting of a base panel and support legs with cushion rubber are arranged in a heavy arrangement, when the cushion rubber of the support legs exceeds a predetermined amount of compressive deformation. An elastic flooring base characterized in that a stopper mechanism is provided around the supporting legs to prevent further deformation. 2. The stopper mechanism is provided on the receiving bracket or the base to which the lower end of the support leg is attached, and is composed of a cylinder with one end open or both ends open, and the cushion rubber is placed inside the cylinder, and the upper or lower part of the cushion rubber is inserted into the cylinder. Claim 1, characterized in that a gap is formed between the receiving plate extension portion of the receiving fitting provided on the lower surface or upper surface of the cushion rubber and the lower end surface or upper end surface of the cylindrical body. The elastic flooring substrate described in . 3. A stopper mechanism is constructed by suspending a stopper metal bolt from the lower surface of the base panel and forming a gap between the tip thereof and the base. Elastic flooring base. 4. A stopper bar is formed by extending the lower end of the receiving bracket for attaching the support leg, and a stopper mechanism is constructed by forming a gap between the tip and the base. The elastic flooring substrate according to scope 1.